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1

Análisis financiero aplicado y principios de administración financiera  

Microsoft Academic Search

Análisis financiero aplicado apareció por primera vez en 1985 y hoy es el libro más leído y consultado en la materia, y el texto guía en la mayoría de las universidades del país y algunas de Latinoamérica. En cada edición se han actualizado los temas básicos e introducido otros nuevos. El atractivo primordial radica en su presentación didáctica, la sencillez

Héctor Ortiz Anaya

2

MÉTODOS NO-LINEALES DE PUNTOS INTERIORES APLICADOS AL PROBLEMA DE DESPACHO HIDROTÉRMICO  

Microsoft Academic Search

This work presents a hydrothermal coordination model which considers the network constraints and the quadratic costs of thermal units. It shows some solution methodologies which uses interior point methods. The model and the methodologies are evaluated in a test system.

CARLOS ADRIÁN CORREA; RICARDO ANDRÉS BOLAÑOS; ALEJANDRO GARCÉS RUIZ

2007-01-01

3

El enfoque de sistemas y de contingencias aplicado al proceso administrativo  

Microsoft Academic Search

El presente artículo corresponde a una reflexión sobre el proceso administrativo de las organizaciones (las funciones de planeación, organización, dirección o influencia y control) desde la perspectiva del enfoque de sistemas y de contingencias. Para ello se abordan los planteamientos más representativos de los distintos enfoques, desde el enfoque clásico, hasta los aportes más contemporáneos. El artículo finaliza con una

Francisco Velásquez Vasquez

2000-01-01

4

ALGORITMOS DE OPTIMIZACIN APLICADOS AL SEGUIMIENTO DEL MOVIMIENTO ARTICULAR Y LA DIGITALIZACIN AUTOMTICA DEL  

E-print Network

de imágenes es una tarea compleja que supone un alto coste computacional. Este tipo de objetos los estimados, adaptando el coste computacional a los requisitos del problema en cada momento y necesaria para definir la pdf y, por tanto, el alto coste computacional que conlleva

Pantrigo Fernández, Juan José

5

COMPORTAMENTO A FATICA DI COMPONENTI MECCANICI SOGGETTI A SOLLECITAZIONI RANDOM: ANALISI CRITICA DEI METODI IN FREQUENZA  

Microsoft Academic Search

SOMMARIO Nell'ambito della progettazione meccanica, grazie alle enormi potenzialità degli odierni strumenti di calcolo per la modellazione FEM e multibody, è ormai realisticamente utilizzabile una procedura di analisi a fatica di componenti meccanici sollecitati in maniera random i cui diversi passi vengono risolti tutti completamente nel dominio della frequenza. La fase più debole di questa metodologia rimane la valutazione diretta

G. Lori; D. Pioli

6

ESERCIZI ANALISI 2 -a.a. 2003/04 (1) Data la funzione f(x) =  

E-print Network

ESERCIZI ANALISI 2 - a.a. 2003/04 Foglio 3 (1) Data la funzione f(x) = cos x se x 0 a x + b se x di a, b esiste f (0). (2) Dato R+ e la funzione f(x) = cos x se x 0 c x + 1 se x > 0 , dire per, 2] R continua e crescente, f(1) = 5 e la retta di equazione y = 5+ 1 2 (x-1) sia tangente ad f nel

Mauceri, Giancarlo

7

Revision curricular a partir de un analisis comparativo de las discrepancias en los curriculos de una escuela de optometria en Puerto Rico con las competencias requeridas para las agencias de revalida y acreditacion 2004  

NASA Astrophysics Data System (ADS)

El proposito de esta investigacion, un estudio cualitativo de caso, fue comparar y contrastar el curriculo vigente de la Escuela de Optometria de la UIAPR con las competencias y estandares requeridos por las agencias de acreditacion y de revalida. Con este proposito, decidimos realizar una revision y un analisis de documentos: el prontuario de cada uno de los cursos de los curriculos implantados en el 1993 y en el 2001; las competencias y estandares establecidos por las agencias de revalida y de acreditacion; y las estadisticas en las que se analiza el porcentaje de estudiantes que aprueban cada una de las partes de los examenes de revalida entre el 1998 al 2003. Se realizaron entrevistas dirigidas para dar apoyo y complementar la revision y el analisis de estos documentos. Los participantes de las entrevistas fueron tres estudiantes de la clase de optometria del 2004 (ultima clase del curriculo del 1993); tres estudiantes de la clase de optometria del 2005 (primera clase graduanda del curriculo vigente) y tres profesores y/o directores de los Departamentos de Ciencias Basicas, Ciencias Clinicas y Cuidado al Paciente. Esta investigacion se enmarco en el modelo de evaluacion curricular de discrepancia de Malcolm Provus y en el modelo de desarrollo basado en competencias. Uno de los hallazgos mas importantes del estudio es que los cambios que se implantaron al curriculo del 2001 no han logrado que los estudiantes mejoren su ejecucion en los examenes de revalida. Por otro lado, se encontro que el curriculo vigente atiende completamente los estandares de la practica de Optometria, pero no las competencias. Esta informacion fue validada mediante el uso de una tabla de cotejo para el analisis de los cursos y de la informacion obtenida de las entrevistas. El estudio determina y concluye que existen discrepancias entre los prontuarios de los cursos del curriculo y las competencias requeridas por la agencia de revalida. Segundo, que el Departamento de Ciencias Basicas es el que presenta mas deficiencias en el desarrollo de las competencias. El investigador recomienda disenar e implantar un curriculo basado en competencias y proveer formacion en didactica y procesos de aprendizaje a los profesores.

Rivera Pacheco, Andres

8

ALS Association  

MedlinePLUS

... Media For Healthcare Professionals The Leader in Global ALS Research The ALS Association has committed $99 million ... Read More » A Commitment to those Living with ALS Top Charity Watchdogs Rate The ALS Association with ...

9

Diagnosing ALS  

MedlinePLUS

... About ALS Share Print Diagnosing ALS En español ALS is a very difficult disease to diagnose. To date, there is no one ... series of diagnostic tests, often ruling out other diseases that mimic ALS, that a diagnosis can be established. A comprehensive ...

10

The Dirichlet Problem for the Total Variation Flow Dept. de An'alisis Matem'atico, Universitat de Valencia, 46100 Burjassot (Valencia), Spain  

E-print Network

'atico, Universitat de Valencia, 46100 Burjassot (Valencia), Spain C. Ballester Department of Tecnologia, University of Pompeu­Fabra, La Rambla 30­32, 08002 Barcelona, Spain V. Caselles Department of Tecnologia, University of Pompeu­Fabra, La Rambla 30­32, 08002 Barcelona, Spain J. M. Maz'on Dept. de An'alisis Matem

Caselles, Vicent

11

Al Composites  

NASA Astrophysics Data System (ADS)

In the present study, cold spraying technique was used to fabricate a metal matrix composite (MMC) that consists of Ni matrix and 20 vol.% Ni3Al particles at two different particle sizes as reinforcement. This study intends to investigate the effect of reinforcement particle size on microstructural and mechanical properties of cold sprayed MMCs. Two different Ni3Al powders with nominal particle size of -45 to +5 and +45 to 100 ?m were used as reinforcement in this study. Cold sprayed Ni-Ni3Al samples were subjected to the microstructural observation and characterization prior to any mechanical testing. Then, samples were tested using nano-indentation, Knoop hardness, Vickers hardness, and Resonance frequency to evaluate their mechanical properties. No significant changes were observed in microstructural characteristics due to different particle sizes. The results obtained from a variety of mechanical testings indicated that the increasing reinforcement particle size resulted in the slight reduction of mechanical properties such as elastic modulus and hardness in cold sprayed MMCs. The mechanical interlock between deposited particles defines the bonding strength in cold sprayed samples. Small size particles have a higher velocity and impact resulting in stronger interlock between deformed particles.

Chandanayaka, Tharaka; Azarmi, Fardad

2014-05-01

12

AL Amyloidosis  

PubMed Central

Definition of the disease AL amyloidosis results from extra-cellular deposition of fibril-forming monoclonal immunoglobulin (Ig) light chains (LC) (most commonly of lambda isotype) usually secreted by a small plasma cell clone. Most patients have evidence of isolated monoclonal gammopathy or smoldering myeloma, and the occurrence of AL amyloidosis in patients with symptomatic multiple myeloma or other B-cell lymphoproliferative disorders is unusual. The key event in the development of AL amyloidosis is the change in the secondary or tertiary structure of an abnormal monoclonal LC, which results in instable conformation. This conformational change is responsible for abnormal folding of the LC, rich in ? leaves, which assemble into monomers that stack together to form amyloid fibrils. Epidemiology AL amyloidosis is the most common type of systemic amyloidois in developed countries with an estimated incidence of 9 cases/million inhabitant/year. The average age of diagnosed patients is 65 years and less than 10% of patients are under 50. Clinical description The clinical presentation is protean, because of the wide number of tissues or organs that may be affected. The most common presenting symptoms are asthenia and dyspnoea, which are poorly specific and may account for delayed diagnosis. Renal manifestations are the most frequent, affecting two thirds of patients at presentation. They are characterized by heavy proteinuria, with nephrotic syndrome and impaired renal function in half of the patients. Heart involvement, which is present at diagnosis in more than 50% of patients, leading to restrictive cardiopathy, is the most serious complication and engages prognosis. Diagnostic methods The diagnosis relies on pathological examination of an involved site showing Congo red-positive amyloid deposits, with typical apple-green birefringence under polarized light, that stain positive with an anti-LC antibody by immunohistochemistry and/or immunofluorescence. Due to the systemic nature of the disease, non-invasive biopsies such as abdominal fat aspiration should be considered before taking biopsies from involved organs, in order to reduce the risk of bleeding complications. Differential diagnosis Systemic AL amyloidosis should be distinguished from other diseases related to deposition of monoclonal LC, and from other forms of systemic amyloidosis. When pathological studies have failed to identify the nature of amyloid deposits, genetic studies should be performed to diagnose hereditary amyloidosis. Management Treatment of AL amyloidosis is based on chemotherapy, aimed at controlling the underlying plasma clone that produces amyloidogenic LC. The hematological response should be carefully checked by serial measurements of serum free LC. The association of an alkylating agent with high-dose dexamethasone has proven to be effective in two thirds of patients and is considered as the current reference treatment. New agents used in the treatment of multiple myeloma are under investigation and appear to increase hematological response rates. Symptomatic measures and supportive care is necessary in patients with organ failure. Noticeably, usual treatments for cardiac failure (i.e. calcium inhibitors, ?-blockers, angiotensin converting enzyme inhibitors) are inefficient or even dangerous in patients with amyloid heart disease, that should be managed using diuretics. Amiodarone and pace maker implantation should be considered in patients with rhythm or conduction abnormalities. In selected cases, heart and kidney transplantation may be associated with prolonged patient and graft survival. Prognosis Survival in AL amyloidosis depends on the spectrum of organ involvement (amyloid heart disease being the main prognosis factor), the severity of individual organs involved and haematological response to treatment. PMID:22909024

2012-01-01

13

[AL amyloidosis].  

PubMed

AL amyloidosis belongs to the group of conformational diseases. It is the most common type of amyloidosis with an estimated 500 new cases per year in France. It is due to a small and usually indolent plasma cell clone which synthesizes an unstable, misfolded monoclonal immunoglobulin light chain that is prone to aggregate and form amyloid fibrils. Non-invasive biopsy such as abdominal fat aspiration or minor salivary gland biopsy should be performed to confirm the diagnosis and if negative, involved tissues have to be examined. Clinical presentation is very diverse, as AL amyloidosis can affect almost any organ or tissue in the body, other than the brain. The kidney is the most frequent organ involved, whereas heart disease characterized by restrictive cardiomyopathy is the most severe. Early diagnosis, before advanced cardiomyopathy, is essential for improving outcome. The association of alkylating agent and high-dose dexamethasone is effective in almost two-thirds of patients. Combinations of proteasome inhibitors, dexamethasone, and alkylating agents achieve high response rates. Close monitoring of clonal and organ response is mandatory to guide therapy changes and duration. New treatments designed to eliminate amyloid deposits are under development. PMID:25194219

Jaccard, A; Desport, E; Mohty, D; Bridoux, F

2015-02-01

14

Analisi Matematica 1 CL Ing. Meccanica (AA 2013/14 L. Chierchia) L'oscillatore armonico  

E-print Network

operazione lineare, qualunque combinazione lineare 1Ossia la derivata della derivata. 2Robert Hooke che lo attrae verso l'origine x = 0 della retta subisce, secondo Hook2 , una forza pari a -kx dove k dovuto al fatto che la molle attrae verso l'origine. Dunque, secondo Newton e Hook, la legge del moto di

Chierchia, Luigi

15

Un analisis econometrico del turismo hotelero y extra-hotelero en las regiones y provincias españolas  

Microsoft Academic Search

Se presentan algunos modelos econometricos de las regiones españolas para analizar la distribucion del turismo, hotelero y extrahotelero a nivel regional y provincial de España en 1991-95. El enfoque resulta novedoso al incluir el estudio del turismo extra-hotelero que tiene en muchos casos gran importancia. Los modelos ponen de manifiesto la importancia de varios factores como el clima, en todos

M. Carmen Guisan; Neira I

2001-01-01

16

Amyotrophic Lateral Sclerosis (ALS)  

MedlinePLUS

... Workshop: Executive Summary MicroRNA Triggers Protective Response in Mice with ALS New study shows that a molecule ... protective response to repair nerve-muscle connections in mice with ALS. Therapy Investigated for ALS May Find ...

17

Analisis del contenido curricular de los Documentos Normativos del Programa de Ciencias en el area de biologia para la escuela superior del sistema de educacion publica de Puerto Rico: 1993-2012  

NASA Astrophysics Data System (ADS)

Esta investigacion de naturaleza cualitativa se ocupo de realizar un analisis de contenido documental de los Documentos Normativos del Programa de Ciencias en el area de biologia de la escuela superior del sistema de educacion publica de Puerto Rico del periodo 1993-2012. Los documentos analizados fueron: Guia Curricular, 1995; Marco Curricular, 2003; Estandares de Excelencia, 1996, 2000 y Estandares de Contenido y Expectativas de Grado, 2007. Se indago si hubo cambios en significados en los Componentes Estructurales: Naturaleza de la ciencia, Paradigmas para la ensenanza de la ciencia, Funcion del curriculo formal, Mision de la ensenanza de la ciencia; Contenidos, destrezas y competencias, Estrategias de ensenanza y Evaluacion/Assessment del aprendizaje. El analisis sugiere que no hubo cambios sustanciales en los significados de los Componentes Estructurales. Los documentos estudiados muestran mayormente caracteristicas similares, aunque los documentos mas recientes eran mas descriptivos, explicativos y especificos.

Davila Montanez, Melissa

18

Schwartz et al., Tella et al., Foltin et al., Trippenbach et al., Regalado et al., Magnano et al., Levin et al., Hale et al., Cocaine day  

E-print Network

., Levin et al., Hale et al., Cocaine day 7 day dry-out period Session I: Baseline Session II: Fixed 8mg, and 32 mg\\70kg respectively with a 100kg cap. All cocaine self-administration sessions take place at the Yale Center for Clinical Investigations Hospital Research Unit. Detecting Signatures of Cocaine Using

Massachusetts at Amherst, University of

19

MDA ALS Caregiver's Guide  

MedlinePLUS

... emotional strategies for being an effective caregiver. The MDA ALS Caregiver’s Guide is meant to give guidance, ... strength and finding help. It frequently refers to MDA’s Everyday Life with ALS: A Practical Guide . Everyone ...

20

Mitochondrial pathobiology in ALS  

PubMed Central

Amyotrophic lateral sclerosis (ALS) is the third most common human adult-onset neurodegenerative disease. Some forms of ALS are inherited, and disease-causing genes have been identified. Nevertheless, the mechanisms of neurodegeneration in ALS are unresolved. Genetic, biochemical, and morphological analyses of human ALS as well as cell and animal models of ALS reveal that mitochondria could have roles in this neurodegeneration. The varied functions and properties of mitochondria might render subsets of selectively vulnerable neurons intrinsically susceptible to cellular aging and stress and overlying genetic variations. Changes occur in mitochondrial respiratory chain enzymes and mitochondrial programmed cell death proteins in ALS. Transgenic mouse models of ALS reveal possible principles governing the biology of neurodegeneration that implicate mitochondria and the mitochondrial permeability transition pore. This paper reviews how mitochondrial pathobiology might contribute to the mechanisms of neurodegeneration in ALS. PMID:22083126

2014-01-01

21

Initial Symptoms of ALS  

MedlinePLUS

... in order to survive. Since ALS attacks only motor neurons, the sense of sight, touch, hearing, taste and smell are not ... The ALS Association - 1275 K Street NW - Suite 250 - Washington, DC 20005 All content and works posted on this ...

22

About ALS: FAQ  

MedlinePLUS

... a patient with ALS, is important to consider seeing a sub specialist - a neurologist specializing in neuromuscular ... questions in advance. Since you will likely be seeing an ALS expert, take advantage of the opportunity ...

23

Who Gets ALS?  

MedlinePLUS

... of ALS is more equal between men and women. There are several research studies – past and present – investigating possible risk factors that may be associated with ALS. More work is needed to conclusively determine what genetics and/or environment factors contribute to developing ALS. It is known, ...

24

Modelo de accesibilidad de conceptos matematicos aplicados en el curso de Astronomia Descriptiva para estudiantes con impedimentos visuales en la UPR  

NASA Astrophysics Data System (ADS)

Este estudio utiliza metodologia de investigacion cualitativa, con el proposito de describir, analizar y evaluar los procesos de diseno y desarrollo de un modelo de accesibilidad que consiste en estrategias de ensenanza de las matematicas para estudiantes con impedimentos visuales matriculados en el curso de Astronomia Descriptiva en la UPR. Se utilizaron las siguientes estrategias para recopilar la informacion, 1) reflexiones de la investigadora en el proceso de diseno y desarrollo de las lecciones adaptadas, que se registraron en un diario reflexivo. 2) entrevista semiestructurada luego de haber trabajado las lecciones de aprendizaje adaptadas con los participantes. 3) observaciones y notas de la investigadora del trabajo de los participantes. Para obtener la informacion de los participantes se obtuvo los permisos institucionales necesarios; se seleccionaron los participantes y se validaron los instrumentos; se realizo el desarrollo de las lecciones adaptadas con los participantes; y finalmente, se analizo la informacion obtenida. El diseno de las lecciones de aprendizaje adaptadas se hizo siguiendo las recomendaciones curriculares de los temas de matematicas aplicados en el curso de Astronomia Descriptiva realizado por la investigadora durante su semestre de internado. El testimonio de las voces de los participantes se obtuvo del proceso de desarrollo de las lecciones de aprendizaje adaptadas de temas seleccionados de conceptos matematicos requeridos en el curso de Astronomia Descriptiva y de la entrevista semiestructurada con los participantes, luego de haber trabajado las lecciones de aprendizaje. Para el desarrollo de las lecciones de aprendizaje, se utilizaron materiales tactiles adaptados, materiales tactiles disenados y materiales disponibles comercialmente. Los textos de las lecciones se imprimieron en tinta y en Braille. Se exhorta a disenar y desarrollar estrategias de ensenanza accesibles, considerando como recursos para evaluar su efectividad a personas con impedimentos visuales. El utilizar estrategias de aprendizaje accesibles de acuerdo a las necesidades individuales de los estudiantes, contribuye para que los estudiantes con impedimentos visuales descubran, exploren, investiguen y formulen sus propias conclusiones durante su proceso de aprendizaje.

Isidro Villamizar, Gloria Maria

25

What Is ALS?  

MedlinePLUS

... prolong survival. It is important to remember that ALS is a quite variable disease; no two people will have the same journey or experiences. There are medically documented cases of people in whom ALS ‘burns out,’ stops progressing or progresses at a ...

26

ANALYSE DES PHOTOCOURANTS DANS LES STRUCTURES Al-Al2O3-Al  

E-print Network

773 ANALYSE DES PHOTOCOURANTS DANS LES STRUCTURES Al-Al2O3-Al PR�PAR�ES PAR BOMBARDEMENT travail a consisté à étudier et analyser les photocourants dans les structures Al-Al2O3-Al dans lesquelles stoechiométriques et amorphes. La hauteur de barrière de l'interface Al-Al2O3 déterminée par photoémission interne

Paris-Sud XI, Université de

27

[Environmental factors in ALS].  

PubMed

ALS is likely to be a disorder of multifactorial origin. Among all the factors that may increase the risk of ALS, environmental ones are being studied for many years, but in the recent years, several advances have pointed to a new interest in their potential involvement in the disease process, especially for the cyanotoxin BMAA. Food containing BMAA has been found on Guam, a well-known focus of ALS/parkinsonism/dementia and high levels of BMAA have been identified into the brain of these patients. The BMAA cyanotoxin is potentially ubiquitous and have also been found into the food of patients who died from ALS both in Europe and USA. BMAA can be wrongly integrated into the protein structure during mRNA traduction, competing with serine. This may induce abnormal protein folding and a subsequent cell death. Heavy metals, such as lead or mercury may be directly toxic for neuronal cells. Several works have suggested an increased risk of ALS in individuals chronically exposed to these metals. Exposure to pesticides has been suggested to be linked to an increased risk of developing ALS. The mechanism of their toxicity is likely to be mediated by paraoxonases. These proteins are in charge of detoxifying the organism from toxins, and particularly organophosphates. To date, there are insufficient scientific data to suggest that exposure to electromagnetic fields may increase the risk of having ALS. We are particularly missing longitudinal cohorts to demonstrate that risk. PMID:24703731

Juntas-Morales, Raul; Pageot, Nicolas; Corcia, Philippe; Camu, William

2014-05-01

28

ALS (Amyotrophic Lateral Sclerosis)  

MedlinePLUS

... of other conditions. One of these tests is electromyography (EMG), a special recording technique that detects electrical activity in muscles. Certain EMG findings can support the diagnosis of ALS. Another ...

29

Genetic Testing for ALS  

MedlinePLUS

... a person will develop symptoms of ALS. Genetic Counseling If there is more than one person with ... testing based on your concerns and values. Genetic counseling does not always lead to genetic testing. For ...

30

Leakage current behaviors of Al/ZrO2/Al and Al/YSZ/Al devices  

NASA Astrophysics Data System (ADS)

The leakage current behaviors of Al/ZrO2/Al and Al/yttria stabilized zirconia (YSZ)/Al devices are investigated for resistive random access memory (RRAM) applications. A silicon oxide layer (450 nm) is first formed on a Si wafer by thermal oxidation. Onto it an Al bottom electrode (270 nm), a ZrO2 or YSZ nano-film (75 nm), and an Al top electrode (270 nm) are sequentially deposited by sputtering. These RRAM devices exhibit ohmic behaviors in the low-field region, while Schottky and Poole–Frenkel emissions take over in the high-field regions. Both the Schottky and trap barrier levels are decreased when monoclinic ZrO2 is replaced by cubic YSZ in the metal/oxide/metal structure. This is attributed not only to the higher symmetry crystal structure and lower binding energy of YSZ, but also to the formation of more oxygen vacancies and their re-distribution associated with yttria doping.

Yeh, Tsung-Her; Lin, Ruei-De; Cherng, Bo-Ruei; Cherng, Jyh-Shiarn

2015-01-01

31

ALS superbend magnet performance  

SciTech Connect

The Lawrence Berkeley National Laboratory has been engaged in the design, construction and testing of four superconducting dipoles (Superbends) that are installed in three arcs of the Advanced Light Source (ALS), with the fourth magnet as a spare. This represents a major upgrade to the ALS providing an enhanced flux and brightness at photon energies above 10 keV. In preparation for installation, an extensive set of tests and measurements have been conducted to characterize the magnetic and cryogenic performance of the Superbends and to fiducialize them for accurate placement in the ALS storage ring. The magnets are currently installed, and the storage ring is undergoing final commissioning. This paper will present the results of magnetic and cryogenic testing.

Marks, Steve; Zbasnik, John; Byrne, Warren; Calais, Dennis; Chin, Michael; DeMarco, Richard; Fahmie, Michael; Geyer, Alan; Krupnick, Jim; Ottens, Fred; Paterson, James A.; Pipersky, Paul; Robin, David S.; Schlueter, RossD.; Steier, Christoph; Wandesforde, Alan

2001-12-10

32

Al Qaeda Training Manual  

NSDL National Science Digital Library

The first resource is a US Department of Justice release of portions of an English translation of the Al Qaeda training manual located by police in Manchester, England during a search of an Al Qaeda member's home. The manual was found in a computer file described as "the military series" related to the "Declaration of Jihad." The cover and excerpts from the 12 chapters can be viewed as a .pdf file. Content of the text includes religious commentary, organizational tactics, guidelines for member selection, techniques for spying, and security measures. The DOJ does not provide the entire document because it does not want to encourage terrorism.

2001-01-01

33

ALS superbend magnet system  

SciTech Connect

The Lawrence Berkeley National Laboratory is preparing to upgrade the Advanced Light Source (ALS) with three superconducting dipoles (Superbends). In this paper we present the final magnet system design which incorporates R&D test results and addresses the ALS operational concerns of alignment, availability, and economy. The design incorporates conduction-cooled Nb-Ti windings and HTS current leads, epoxy-glass suspension straps, and a Gifford-McMahon cryocooler to supply steady state refrigeration. We also present the current status of fabrication and testing.

Zbasnik, J.; Wang, S.T.; Chen, J.Y.; DeVries, G.J.; DeMarco, R.; Fahmie, M.; Geyer, A.; Green, M.A.; Harkins, J.; Henderson, T.; Hinkson, J.; Hoyer, E.H.; Krupnick, J.; Marks, S.; Ottens, F.; Paterson, J.A.; Pipersky, P.; Portmann, G.; Robin, D.A.; Schlueter, R.D.; Steier, C.; Taylor, C.E.; Wahrer, R.

2000-09-15

34

Al Shanker Remembers.  

ERIC Educational Resources Information Center

In a 1996 interview shortly before his death, Al Shanker, longtime president of the American Federation of Teachers, discussed such topics as: his own educational experiences; how he learned about political fighting in the Boy Scouts; the appeal of socialism; multinational corporations and the nation state; teaching tough students; and John Dewey…

American Educator, 2000

2000-01-01

35

Lou Gehrig's Disease (ALS)  

MedlinePLUS

... ALS. The official name comes from these Greek words: "a" for without "myo" for muscle "trophic" for nourishment "lateral" for side (of the spinal cord) "sclerosis" for hardening or scarring So, amyotrophic means that the muscles have lost their nourishment. When this happens, they become smaller ...

36

Smith et al Supporting Information  

E-print Network

Smith et al 1 Supporting Information for Smith et al. 2006, PLoS Computational Biology 2:e161-hyperpallium apicale; HF-hippocampal formation, and M-mesopallium. #12;Smith et al 2 FigureS2,nolinkswerefoundbetweenelectrodesindifferentbirds,andnolinkswerefoundintothesoundstimulusvariable. CombinedAnalysisofAllBirds'ElectrodesPlusSound #12;Smith et al 3 Analysis of Data from Subsections

Jarvis, Erich D.

37

Extensión del Formalismo de Orbitales de Defecto Cuántico al tratamiento del efecto Stark (SQDO).  

NASA Astrophysics Data System (ADS)

El estudio experimental de las interacciones de átomos Rydberg altamente excitados con campos eléctricos ha experimentado un creciente interés durante las dos últimas décadas debido, en gran medida, al desarrollo de nuevas técnicas para crear y estudiar átomos Rydberg en el laboratorio. Acompañando a estas nuevas técnicas experimentales, es necesario el desarrollo de modelos teóricos que nos permitan contrastar sus medidas y conocer mejor los fundamentos de los mismos. Desde el punto de vista teórico el conocimiento del desdoblamiento de los niveles energéticos de un átomo en función de la magnitud del campo eléctrico aplicado (lo que se conoce como mapa Stark) es el mejor punto de partida para la descripción del sistema y un prerrequisito fundamental para el cálculo de distintas propiedades atómicas en presencia del campo eléctrico tales como intensidades de transición, umbrales de ionización de campo eléctrico, tiempos de vida, posición y anchura de cruces evitados, etc. En este trabajo presentamos la adaptación del método de orbitales de defecto cuántico [1,2,3] al tratamiento del efecto Stark (SQDO) [4] y su aplicación al cálculo de los desdoblamientos energéticos y fuerzas de oscilador de estados Rydberg en los átomos de Li, Na y K. El propósito de este estudio es, por un lado, desarrollar métodos fiables para la determinación de propiedades atómicas en presencia de campos eléctricos y, por otro, mostrar la fiabilidad de las funciones de onda QDO en la descripción del efecto Stark en sistemas atómicos.

Menéndez, J. M.; Martín, I.; Velasco, A. M.

38

Al Parker: American Illustrator  

NSDL National Science Digital Library

This tribute to Al Parker, the noted magazine illustrator and artist, was fashioned from extensive holdings at the Washington University Library in St. Louis. Known as "The Dean of Illustrators," Al Parker attended school at the St. Louis School of Fine Arts at Washington University and went on to become of the most prolific and important American illustrators of the twentieth century. Parker was best-known for his modernist deployment of line, patterning, and bold, flat colors, which helped shape the general "look" of the period from the 1930s to the 1960s. Using short clips of Parker's original illustrations and drawings, this exhibit offers a glimpse into his work and contributions to the medium. Of particular interest is the section devoted to Parker's famous "Mother-Daughter" covers for the Ladies Home Journal, which began in 1939 and ran for 17 years.

39

Iniciacin al Windsurf DESCRIPCIN  

E-print Network

oportunidad a la comunidad universitaria al acercamiento a los deportes náuticos, siendo entre ellos de.): · Origen y fundamentos básicos del deporte del windsurf · Partes de las que se compone el material náutico de seguridad y de actuación a tener en cuenta para la práctica de este deporte · Nudos náuticos

Escolano, Francisco

40

Abu Musab Al Suri: Architect of the New Al Qaeda  

Microsoft Academic Search

Drawing on new sources, the authors argue that Abu Musab al Suri (real name Mustafa Setmariam Nasar), now in U.S. custody, is the principle architect of Al Qaeda's post–9\\/11 structure and strategy. His vision, which predated 9\\/11, of transforming Al Qaeda from a vulnerable hierarchical organization into a resilient decentralized movement, was largely the formula Al Qaeda adopted after the

Paul Cruickshank; Mohannad Hage Ali

2007-01-01

41

Al-Adwiyah Al-Qalbiyah: introduction and commentary.  

PubMed

Avicenna was a great scientist and philosopher of the 10th century A.D. He wrote about 456 books in various fields of learning. Al-Adwiyah Al-Qalbiyah is perhaps the most important work of Avicenna after Al-Qanun fil Tibb or canon of medicine. Like Al-Qanun, it was also very popular in Europe and was translated into Latin. It has also been translated in Turkish, Uzbbek, and later on in Persian and Urdu. PMID:11609033

Azmi, K A; Hussain, S

1994-07-01

42

Oxidation of NiAl and FeAl  

Microsoft Academic Search

Recent studies on the oxidation of the ?-phases NiAl and FeAl are reviewed. Generally, these aluminides form an alumina layer which should be protective, however, certain special features render the pure phases rather susceptible to accelerated oxidation and corrosion. At 1000°C fast growing metastable modifications ?-, ?- and ?-Al2O3 are formed, which are undergrown by ?-Al2O3 and transform to that

H. J Grabke

1999-01-01

43

Optical gain characteristics in Al-rich AlGaN/AlN quantum wells  

SciTech Connect

The optical gain characteristics of Al-rich AlGaN/AlN quantum wells (QWs) were assessed by the variable stripe length method at room temperature. An Al{sub 0.79}Ga{sub 0.21}N/AlN QW with a well width of 5?nm had a large optical gain of 140?cm{sup ?1}. Increasing the excitation length induced a redshift due to the gain consumption and the consequent saturation of the amplified spontaneous emission. Moreover, a change in the dominant gain polarization with Al composition, which was attributed to switching of the valence band ordering of strained AlGaN/AlN QWs at Al compositions of ?0.8, was experimentally demonstrated.

Oto, Takao; Banal, Ryan G.; Funato, Mitsuru; Kawakami, Yoichi, E-mail: kawakami@kuee.kyoto-u.ac.jp [Department of Electronic Science and Engineering, Kyoto University, Kyoto 615-8510 (Japan)

2014-05-05

44

Thermal behavior of Al, AlFe- and AlCu-pillared interlayered clays  

Microsoft Academic Search

The purified bentonite parent clay, fraction ?; 2 mm of montmorillonite type, has been pillared by various polyhydroxy cations,\\u000a Al, AlFe and AlCu, using conventional pillaring methods. The thermal behavior of PILCs was investigated by combination of\\u000a X-ray diffraction (XRD), thermal analysis (DTA, TG) and low temperature N2 adsorption\\/desorption (LTNA). Thermal stability\\u000a of Al-, AlFe- and AlCu-PILC samples was estimated

R. P. Marinkovic-Neducin; E. E. Kiss; T. Z. Cukic; D. Z. Obadovic

2004-01-01

45

Al Jazirah, Sudan  

NASA Technical Reports Server (NTRS)

Al Jazirah (also Gezira) is one of the 26 states of Sudan. The state lies between the Blue Nile and the White Nile in the east-central region of the country. It is a well populated area suitable for agriculture. The area was at the southern end of Nubia and little is known about its ancient history and only limited archaeological work has been conducted in this area. The region has benefited from the Gezira Scheme, a program to foster cotton farming begun in 1925. At that time the Sennar Dam and numerous irrigation canals were built. Al Jazirah became the Sudan's major agricultural region with more than 2.5 million acres (10,000 km) under cultivation. The initial development project was semi-private, but the government nationalized it in 1950. Cotton production increased in the 1970s but by the 1990s increased wheat production has supplanted a third of the land formerly seeded with cotton.

The image was acquired December 25, 2006, covers an area of 56 x 36.4 km, and is located near 14.5 degrees north latitude, 33.1 degrees east longitude.

The U.S. science team is located at NASA's Jet Propulsion Laboratory, Pasadena, Calif. The Terra mission is part of NASA's Science Mission Directorate.

2008-01-01

46

Atomic simulations of kinetic friction and its velocity dependence at Al/Al and -Al2O3/ -Al2O3 interfaces  

E-print Network

Atomic simulations of kinetic friction and its velocity dependence at Al/Al and -Al2O3/ -Al2O3-scale Al 001 /Al 001 and -Al2O3 0001 / -Al2O3 0001 interfaces has been investigated using molecular. It is found that kinetic friction during sliding at commensurate -Al2O3 0001 / -Al2O3 0001 interfaces exceeds

Goddard III, William A.

47

Al Mashriq: Lebanon  

NSDL National Science Digital Library

Part of the Al-Mashriq online Web resource for countries located in the Levant, this site is devoted to providing a host of materials, thematically organized, about the country of Lebanon. Persons seeking to read a bit about Lebanon's early history will want to read the first chapter of Kamal Salibi's "A House of Many Mansions-The History of Lebanon," which is provided here. For those looking for a geographic orientation to the landscape of Lebanon, an interactive map provides a number of photographs and brief remarks on various important cities and cultural sites, such as Beirut and the Roman temples at Baalbak. Along with these sections, the site also offers thematic sections devoted to education, food, maps, money, politics, and religion that will be useful to those students looking for background information on Lebanon.

48

Doppelthydrophile Blockcopolymere als Mineralisationstemplate  

NASA Astrophysics Data System (ADS)

Die vorliegende Arbeit beschäftigt sich mit der Synthese und den Eigenschaften von doppelthydrophilen Blockcopolymeren und ihrer Anwendung in einem biomimetischen Mineralisationsprozeß von Calciumcarbonat und Bariumsulfat. Doppelthydrophile Blockcopolymere bestehen aus einem hydrophilen Block, der nicht mit Mineralien wechselwirkt und einem zweiten Polyelektrolyt-Block, der stark mit Mineraloberflächen wechselwirkt. Diese Blockcopolymere wurden durch ringöffnende Polymerisation von N-carboxyanhydriden (NCA's) und a-methoxy-?-amino[poly(ethylene glycol)] PEG-NH2 als Initiator hergestellt. Die hergestellten Blockcopolymere wurden als effektive Wachstumsmodifikatoren für die Kristallisation von Calciumcarbonat und Bariumsulfat Mineralien eingesetzt. Die so erhaltenen Mineralpartikel (Kugeln, Hantel, eiförmige Partikel) wurden durch Lichtmikroskopie in Lösung, SEM und TEM charakterisiert. Röntgenweitwinkelstreuung (WAXS) wurde verwendet, um die Modifikation von Calciumcarbonat zu ermitteln und die Größe der Calciumcarbonat- und Bariumsulfat-Nanopartikel zu ermitteln. This work describes the synthesis and characterization of double hydrophilic block copolymers and their use in a biomimetic mineralization process of Calcium Carbonate and Barium Sulfate. Double hydrophilic block copolymers consist of a hydrophilic block that does not interact with minerals and another hydrophilic polyelectrolyte block that strongly interacts with mineral surfaces. These polymers were synthesised via ring opening polymerisation of N-carboxyanhydride (NCA), and the first hydrophilic block a-methoxy-?-amino[poly(ethylene glycol)] PEG-NH2 was used as an initiator. The prepared block copolymers were used as effective crystal growth modifiers to control the crystallization of Calcium Carbonate and Barium Sulfate minerals. The resulting mineral particles (spheres, dumbbells, egg-like particles) were characterised by light microscopy in solution, by SEM, and by TEM. X-Ray scattering measurements (WAXS) were used to prove the modification of Calcium Carbonate particles and to calculate the size of Calcium Carbonate and Barium Sulfate nanoparticles.

Kasparova, Pavla

2002-07-01

49

Rub' al Khali, Arabia  

NASA Technical Reports Server (NTRS)

The Rub' al Khali is one of the largest sand deserts in the world, encompassing most of the southern third of the Arabian Peninsula. It includes parts of Oman, United Arab Emirates, and Yemen. The desert covers 650,000 square kilometers, more than the area of France. Largely unexplored until recently, the desert is 1000 km long and 500 km wide. The first documented journeys made by Westerners were those of Bertram Thomas in 1931 and St. John Philby in 1932. With daytime temperatures reaching 55 degrees Celsius, and dunes taller than 330 meters, the desert may be one of the most forbidding places on Earth.

The image was acquired December 2, 2005, covers an area of 54.8 x 61.9 km, and is located near 20.7 degrees north latitude, 53.6 degrees east longitude.

The U.S. science team is located at NASA's Jet Propulsion Laboratory, Pasadena, Calif. The Terra mission is part of NASA's Science Mission Directorate.

2008-01-01

50

Thermodynamic properties of Al, Ni, NiAl, and Ni3Al from first-principles calculations  

E-print Network

Thermodynamic properties of Al, Ni, NiAl, and Ni3Al from first-principles calculations Y. Wang *, Z The thermodynamic properties of Al, Ni, NiAl, and Ni3Al were studied using the first-principles approach. The 0-K of )1.6 J/mol/K for NiAl and )1.2 J/mol/K for Ni3Al. For Ni, the inclusion of thermal electronic

Chen, Long-Qing

51

Thin Films Using Al Doping  

NASA Astrophysics Data System (ADS)

We have studied the influence of Al doping on the microstructural, optical, and electrical properties of spray-deposited WO3 thin films. XRD analyses confirm that all the films are of polycrystalline WO3 in nature, possessing monoclinic structure. EDX profiles of the Al-doped films show aluminum peaks implying incorporation of Al ions into WO3 lattice. On Al doping, the average crystallite size decreases due to increase in the density of nucleation centers at the time of film growth. The observed variation in the lattice parameter values on Al doping is attributed to the incorporation of Al ions into WO3 lattice. Enhancement in the direct optical band gap compared to the undoped film has been observed on Al doping due to decrease in the width of allowed energy states near the conduction band edge. The refractive indices of the films follow the Cauchy relation of normal dispersion. Electrical resistivity compared to the undoped film has been found to increase on Al doping.

Mukherjee, Ramnayan; Prajapati, C. S.; Sahay, P. P.

2014-09-01

52

Conclusioni al libro Il Cliente nella Sanit (Franco Angeli, Milano) a cura del prof. Giuseppe L'analisi di un problema un primo passo indispensabile di un percorso in mutamento. Nel corso  

E-print Network

delle nostre ricerche sulla customer satisfaction l'aver capito quali siano gli aspetti soddisfacenti e risorse non sono infinite. Customer satisfaction e cultura della qualità La customer satisfaction riveste della qualità. #12;2 La customer satisfaction agisce su più livelli, creando un'interazione forte e

Romeo, Alessandro

53

Identification of Candida albicans ALS2 and ALS4 and Localization of Als Proteins to the Fungal Cell Surface  

Microsoft Academic Search

Additional genes in the growing ALS family of Candida albicans were isolated by PCR screening of a genomic fosmid library with primers designed from the consensus tandem-repeat sequence of ALS1. This procedure yielded fosmids encoding ALS2 and ALS4. ALS2 and ALS4 conformed to the three-domain structure of ALS genes, which consists of a central domain of tandemly repeated copies of

L. L. HOYER; T. L. PAYNE; J. E. HECHT

1998-01-01

54

[ALS and excitatory amino acid].  

PubMed

AMPA receptor, one of ionotropic glutamate receptors, has been proposed to play a critical role to initiate the neuronal death cascade in motor neuron disease by an increase of Ca2+ influx. There are at least two mechanisms to increase Ca2+ influx through Ca2+-permiable AMPA receptor: a decrease of RNA editing efficacy at the GluR2 Q/R site and a decrease of GluR2 level relative to AMPA receptor subunits. Deficient RNA editing of the AMPA receptor subunit GluR2 at the Q/R site is a primary cause of neuronal death and recently has been reported to be a tightly linked etiological cause of motor neuron death in sporadic amyotrophic lateral sclerosis (ALS). On the other hand, relative low GluR2 level among AMPA receptor subunits seems to increase Ca2+ permeability of motor neurons in familial ALS (ALS1) linked to mutated cupper-zinc superoxide dismutase gene (SOD1). AMPA receptor-mediated mechanism does not seem to play any role in death of motor neurons in X-linked spinal and bulbar muscular atrophy (SBMA). From the molecular pathomechanism of sporadic ALS and ALS1, drugs which increase RNA editing efficacy at the GluR2 Q/R site could be a potent therapy for sporadic ALS, while AMPA receptor antagonists could prevent deterioration from ALS1. PMID:17969352

Aizawa, Hitoshi; Kwak, Shin

2007-10-01

55

In Memory of Al Cameron  

E-print Network

Al Cameron, who died recently (October 3, 2005) at 80, was one of the giants in astrophysics. His insights were profound and his interests were wide-ranging. Originally trained as a nuclear physicist, he made major contributions in a number of fields, including nuclear reactions in stars, nucleosynthesis, the abundances of the elements in the Solar System, and the origin of the Solar System and the Moon. In 1957, Cameron and, independently, Burbidge, Burbidge, Fowler and Hoyle, wrote seminal papers on nuclear astrophysics. Most of our current ideas concerning element formation in stars have followed from those two pioneering and historical works. Al also made many contributions in the field of Solar System physics. Particularly noteworthy in this regard was Cameron's work on the formation of the Moon. Al was also a good friend and mentor of young people. Al Cameron will be missed by many in the community both for his scientific contributions and for his friendship.

Cowan, J J; Cowan, John J.; Truran, James W.

2006-01-01

56

In Memory of Al Cameron  

E-print Network

Al Cameron, who died recently (October 3, 2005) at 80, was one of the giants in astrophysics. His insights were profound and his interests were wide-ranging. Originally trained as a nuclear physicist, he made major contributions in a number of fields, including nuclear reactions in stars, nucleosynthesis, the abundances of the elements in the Solar System, and the origin of the Solar System and the Moon. In 1957, Cameron and, independently, Burbidge, Burbidge, Fowler and Hoyle, wrote seminal papers on nuclear astrophysics. Most of our current ideas concerning element formation in stars have followed from those two pioneering and historical works. Al also made many contributions in the field of Solar System physics. Particularly noteworthy in this regard was Cameron's work on the formation of the Moon. Al was also a good friend and mentor of young people. Al Cameron will be missed by many in the community both for his scientific contributions and for his friendship.

John J. Cowan; James W. Truran

2006-11-27

57

Comparing the Thermodynamic Behaviour of Al(1)+ZrO2(s) to Al(1)+Al2O3(s)  

NASA Technical Reports Server (NTRS)

In an effort to better determine the thermodynamic properties of Al(g) and Al2O(g). the vapor in equilibrium with Al(l)+ZrO2(s) was compared to the vapor in equilibrium with Al(l)+Al2O3(s) over temperature range 1197-to-1509K. The comparison was made directly by Knudsen effusion-cell mass spectrometry with an instrument configured for a multiple effusion-cell vapor source (multi-cell KEMS). Second law enthalpies of vaporization of Al(g) and Al2O(g) together with activity measurements show that Al(l)+ZrO2(s) is thermodynamically equivalent to Al(l)+Al2O3(s), indicating Al(l) remained pure and Al2O3(s) was present in the ZrO2-cell. Subsequent observation of the Al(l)/ZrO2 and vapor/ZrO2 interfaces revealed a thin Al2O3-layer had formed, separating the ZrO2-cell from Al(l) and Al(g)+Al2O(g), effectively transforming it into an Al2O3 effusion-cell. This behavior agrees with recent observations made for Beta-NiAl(Pt) alloys measured in ZrO2 effusion-cell.

Copland, Evan

2004-01-01

58

Reply to "Comment on 'Operational Earthquake Forecasting: Status of Knowledge and Guidelines for Implementation by Jordan et al. [2011]'  

E-print Network

Earthquake Administration, Beijing, China 4 AMRA (Analisi e Monitoraggio del Rischio Ambientale) Scarl monitored at a three-borehole Stress-Monitoring Site (SMS) in central Italy could monitor stress-accumulation and stress-relaxation (crack-coalescence) before all damaging (M 5) earthquakes within 1000 km of the SMS

59

[Current treatment of AL amyloidosis].  

PubMed

Systemic AL amyloidosis is a rare complication of monoclonal gammopathies. Renal manifestations are frequent, mostly characterized by heavy proteinuria, with nephrotic syndrome and renal failure in more than half of the patients at diagnosis. Without treatment, median survival does not exceed 12 months. Amyloid heart disease and diffusion of amyloid deposits are associated with reduced survival. Treatment of systemic AL amyloidosis has been profoundly modified with the introduction of international criteria for the definition of organ involvement and hematologic response, and with the use of sensitive tests for the measurement of serum-free light chain levels. Melphalan plus dexamethasone is now established as the gold standard for first line treatment of systemic AL, with similar efficacy and reduced treatment-related mortality compared to high-dose therapy. Modern chemotherapy regimens, based on the use of novel agents such as bortezomib and lenalidomide, might further improve patient survival. PMID:21497573

Desport, Estelle; Moumas, Eric; Abraham, Julie; Delbès, Sébastien; Lacotte-Thierry, Laurence; Touchard, Guy; Fermand, Jean-Paul; Bridoux, Frank; Jaccard, Arnaud

2011-11-01

60

Modeling of the ALS linac  

SciTech Connect

The ALS injector linac is used for the Beam Test Facility (BTF) and the Damping Experiments when it is available in between the ALS filings. These experiments usually require higher quality beams and a better characterization than is normally required for ALS operations. This paper focuses on the beam emittance, energy tilt, and especially the longitudinal variation of the beam parameters. For instance, the authors want to avoid longitudinal variations at the low beta section of the BTF. On the other hand, a large energy tilt is required for post-acceleration compression of the bunch using an alpha magnet. The PARMELA code was modified to calculate and display longitudinal variations of the emittance ellipse. Using the Microsoft Development Studio under Windows NT environment the code can handle a much larger number of particles than was previously possible.

Kim, C.H. [Lawrence Berkeley Lab., CA (United States). Advanced Light Source Center

1996-08-01

61

Al Akhawayn University Al Akhawayn partner of TUM since 2002  

E-print Network

Haddouti · Dissertation at Chair for Databases (Prof. Bayer), Professor at Al Akhawayn, now working at BMW) · BMW, Hachim.haddouti@bmw.de #12;Double Degree TUM - Georgia Tech Fakultät für Informatik TUM School

Cengarle, María Victoria

62

Al Akhawayn University Al Akhawayn partner of TUM since 2002  

E-print Network

Haddouti · Dissertation at Chair for Databases (Prof. Bayer), Professor at Al Akhawayn, now working at BMW Alumni) · BMW, Hachim.haddouti@bmw.de #12;Double Degree TUM - Georgia Tech Fakultät für Informatik TUM

Cengarle, María Victoria

63

Al Akhawayn University Al Akhawayn partner of TUM since 2002  

E-print Network

Haddouti · Dissertation at Chair for Databases (Prof. Bayer), Professor at Al Akhawayn, now working at BMW (TUM & AUI Alumni) · BMW, Hachim.haddouti@bmw.de #12;Double Degree TUM - Georgia Tech Fakultät für

Cengarle, María Victoria

64

AlN/Fe/AlN nanostructures for magnetooptic magnetometry  

SciTech Connect

AlN/Fe/AlN/Cu nanostructures with ultrathin Fe grown by sputtering on Si substrates are evaluated as probes for magnetooptical (MO) mapping of weak currents. They are considered for a laser wavelength of ??=?410?nm (3.02?eV) and operate at oblique light incidence angles, ?{sup (0)}, to enable detection of both in-plane and out-of-plane magnetization. Their performance is evaluated in terms of MO reflected wave electric field amplitudes. The maximal MO amplitudes in AlN/Fe/AlN/Cu are achieved by a proper choice of layer thicknesses. The nanostructures were characterized by MO polar Kerr effect at ?{sup (0)}???5° and longitudinal Kerr effect spectra (?{sup (0)}?=?45°) at photon energies between 1 and 5?eV. The nominal profiles were refined using a model-based analysis of the spectra. Closed form analytical expressions are provided, which are useful in the search for maximal MO amplitudes.

Lišková-Jakubisová, E., E-mail: liskova@karlov.mff.cuni.cz; Viš?ovský, Š. [Faculty of Mathematics and Physics, Charles University in Prague, Ke Karlovu 5, 12116 Prague 2 (Czech Republic); Široký, P.; Hrabovský, D.; Pištora, J. [Nanotechnology Center, Technical University of Ostrava, 17. listopadu 15/2172, 70833 Ostrava Poruba (Czech Republic); Harward, I.; Celinski, Z. [Center for Magnetism and Magnetic Nanostructures, University of Colorado at Colorado Springs, 1420 Austin Bluffs Pkwy., Colorado Springs, Colorado 80918 (United States)

2014-05-07

65

A nuclear magnetic resonance probe of Fe-Al and Al20V2Eu intermetallics  

E-print Network

Al-rich Fe-Al systems (FeAl2, Fe2 Al5 and Fe4Al13) and Al20V2Eu have complicated structures with quasicrystal-like features making these materials potentially of interest for magnetic behavior. However, there is not much work on these materials...

Chi, Ji

2009-05-15

66

Multiple 0Multiple 0 ----transitions intransitions in NbNb/Al/Al/Al/Al22OO33/Ni/Ni33Al/Al/NbNb Josephson tunnel junctions.Josephson tunnel junctions.  

E-print Network

in Strong Ferromagnetic Pi-Junctions, cond. mat.0606067 4,1 1,2 Ni 2.8 105 1000 This work 4,6 0,45 Ni3Al 1 reasons. · Ni3Al forms a single-crystalline layer and can exhibit a heteroepitaxial relation of being normalizedresidualmagneticmoment,a.u. T, K Normalised residual magnetic moment against temperature of a Nb/Al/Ni3Al/Al/Nb sample

Fominov, Yakov

67

Sobrevivir al cáncer: comer bien  

Cancer.gov

Sobrevivir al cáncer: comer bien Por el Instituto Nacional del Cáncer Bethesda, MD. - Más de 13 millones de personas que viven en Estados Unidos han recibido un diagnóstico de cáncer. Muchas de las personas que han tenido cáncer quieren seguir una

68

Grunditz et al. SUPPLEMENTAL METHODS  

E-print Network

Grunditz et al. 1 SUPPLEMENTAL METHODS Comparing FRAP of different fluorophores To compare YFP and Alexa-Fluor 594 FRAP measurements, YFP-expressing pyramidal cells were filled with Alexa-Fluor 594 through a patch pipette. Two-photon FRAP experiments were performed at 920 nm, and the recovery of both

Oertner, Thomas

69

Dynamic Modeling of ALS Systems  

NASA Technical Reports Server (NTRS)

The purpose of dynamic modeling and simulation of Advanced Life Support (ALS) systems is to help design them. Static steady state systems analysis provides basic information and is necessary to guide dynamic modeling, but static analysis is not sufficient to design and compare systems. ALS systems must respond to external input variations and internal off-nominal behavior. Buffer sizing, resupply scheduling, failure response, and control system design are aspects of dynamic system design. We develop two dynamic mass flow models and use them in simulations to evaluate systems issues, optimize designs, and make system design trades. One model is of nitrogen leakage in the space station, the other is of a waste processor failure in a regenerative life support system. Most systems analyses are concerned with optimizing the cost/benefit of a system at its nominal steady-state operating point. ALS analysis must go beyond the static steady state to include dynamic system design. All life support systems exhibit behavior that varies over time. ALS systems must respond to equipment operating cycles, repair schedules, and occasional off-nominal behavior or malfunctions. Biological components, such as bioreactors, composters, and food plant growth chambers, usually have operating cycles or other complex time behavior. Buffer sizes, material stocks, and resupply rates determine dynamic system behavior and directly affect system mass and cost. Dynamic simulation is needed to avoid the extremes of costly over-design of buffers and material reserves or system failure due to insufficient buffers and lack of stored material.

Jones, Harry

2002-01-01

70

Sliding wear behavior of plasma sprayed Fe 3Al–Al 2O 3 graded coatings  

Microsoft Academic Search

Fe3Al–Al2O3 double-layer coatings (DC), Fe3Al–Fe3Al\\/50%Al2O3–Al2O3 triple-layer coatings (TC) and Fe3Al–Al2O3 graded coatings (GC) were produced from a series of Fe3Al\\/Al2O3 composite powders with different compositions on low carbon steel substrate using PLAXAIR plasma spraying equipment. Friction behaviors and wear resistance of the three kinds of coatings have been investigated under different loads. Tests were carried out using an MRH-3 standard

Jingde Zhang; Kangning Sun; Jiangting Wang; Baoyan Tian; Hongsheng Wang; Yansheng Yin

2008-01-01

71

SMERDON ET AL.: AUXILIARY MATERIAL Auxiliary Material  

E-print Network

SMERDON ET AL.: AUXILIARY MATERIAL 1 Auxiliary Material Spatial Performance of Four Climate Field run [Ammann et al., 2007; hereinafter CCSM] and the GKSS ECHO-g ERIK2 run [González-Rouco et al., 2006-longitude grids and comprise the grid from which all samplings are performed [Smerdon et al., 2008

Smerdon, Jason E.

72

(12) United States Patent Hendricks et al.  

E-print Network

/1976 McGuire 5/1977 Ryan et al. 111978 Bushnell et al. 4/1980 Sukonick et al. (Continued) FOREIGN PATENT DOCUMENTS 4,959,810 A 9/1990 Darbee et al. 4,961,109 A 10/1990 Tanaka 4,272,819 A 611981 Katsumata et al. 4,965,819 A 10/1990 Kannes 4,298,793 A 1111981 Melis et al. 4,965,825 A 10/1990 Harvey et al. 4,361,848 A 1111982

Shamos, Michael I.

73

Identification of Candida albicans ALS2 and ALS4 and localization of als proteins to the fungal cell surface.  

PubMed

Additional genes in the growing ALS family of Candida albicans were isolated by PCR screening of a genomic fosmid library with primers designed from the consensus tandem-repeat sequence of ALS1. This procedure yielded fosmids encoding ALS2 and ALS4. ALS2 and ALS4 conformed to the three-domain structure of ALS genes, which consists of a central domain of tandemly repeated copies of a 108-bp motif, an upstream domain of highly conserved sequences, and a domain of divergent sequences 3' of the tandem repeats. Alignment of five predicted Als protein sequences indicated conservation of N- and C-terminal hydrophobic regions which have the hallmarks of secretory signal sequences and glycosylphosphatidylinositol addition sites, respectively. Heterologous expression of an N-terminal fragment of Als1p in Saccharomyces cerevisiae demonstrated function of the putative signal sequence with cleavage following Ala17. This signal sequence cleavage site was conserved in the four other Als proteins analyzed, suggesting identical processing of each protein. Primary-structure features of the five Als proteins suggested a cell-surface localization, which was confirmed by indirect immunofluorescence with an anti-Als antiserum. Staining was observed on mother yeasts and germ tubes, although the intensity of staining on the mother yeast decreased with elongation of the germ tube. Similar to other ALS genes, ALS2 and ALS4 were differentially regulated. ALS4 expression was correlated with the growth phase of the culture; ALS2 expression was not observed under many different in vitro growth conditions. The data presented here demonstrate that ALS genes encode cell-surface proteins and support the conclusion that the size and number of Als proteins on the C. albicans cell surface vary with strain and growth conditions. PMID:9765564

Hoyer, L L; Payne, T L; Hecht, J E

1998-10-01

74

AlSb/InAs/AlSb quantum wells  

NASA Technical Reports Server (NTRS)

Researchers studied the InAs/AlSb system recently, obtaining 12nm wide quantum wells with room temperature mobilities up to 28,000 cm(exp 2)/V center dot S and low-temperature mobilities up to 325,000 cm(exp 2)/V center dot S, both at high electron sheet concentrations in the 10(exp 12)/cm(exp 2) range (corresponding to volume concentrations in the 10(exp 18)/cm(exp 2) range). These wells were not intentionally doped; the combination of high carrier concentrations and high mobilities suggest that the electrons are due to not-intentional modulation doping by an unknown donor in the AlSb barriers, presumably a stoichiometric defect, like an antisite donor. Inasmuch as not intentionally doped bulk AlSb is semi-insulating, the donor must be a deep one, being ionized only by draining into the even deeper InAs quantum well. The excellent transport properties are confirmed by other observations, like excellent quantum Hall effect data, and the successful use of the quantum wells as superconductive weak links between Nb electrodes, with unprecendentedly high critical current densities. The system is promising for future field effect transistors (FETs), but many processing problems must first be solved. Although the researchers have achieved FETs, the results so far have not been competitive with GaAs FETs.

Kroemer, Herbert

1990-01-01

75

SCIENCE CAREER Al nanoclusters in coagulants and granulates: application  

E-print Network

SCIENCE CAREER Al nanoclusters in coagulants and granulates: application in arsenic removal from suitable for arsenic removal. The aluminum nanocl- usters Al13 (AlO4Al12(OH)24H2O12 7? ) and Al30 (Al2O8Al coagulant or in Al granulate during water treatment. Keywords Arsenic Á Water treatment Á Al nanoclusters Á

Wehrli, Bernhard

76

(12) United States Patent Hendricks et al.  

E-print Network

,272,819 A 611981 Katsumata et al. 4,405,829 A * 911983 Rivest et al. ................. 380/30 4,513,390 A 411985 Walter et al. 4,528,643 A * 711985 Freeny, Jr.................... 705/52 4,578,531 A * 311986 Everhart et Kollin et al. 4,796,220 A 111989 Wolfe 4,829,569 A * 511989 Seth-Smith et al. ........ 380/234 4

Shamos, Michael I.

77

Ordering process of Al 5Ti 3, hAl 2Ti and r-Al 2Ti with f.c.c.-based long-period superstructures in rapidly solidified Al-rich TiAl alloys  

Microsoft Academic Search

Change in microstructure and stability of superstructural phases in Al-rich TiAl alloys containing 58.0–62.5at.% Al were investigated using melt-spun ribbons. Ordering processes of long-period ordered phases such as Al5Ti3, h-Al2Ti and r-Al2Ti in the L10 matrix during annealing were examined. The presence of Al5Ti3 and h-Al2Ti phases in the L10 matrix was confirmed in melt-spun Ti–60.0at.% Al and Ti–62.5at.% Al

T. Nakano; A. Negishi; K. Hayashi; Y. Umakoshi

1999-01-01

78

First-principles calculations on Al/AlB 2 interfaces  

NASA Astrophysics Data System (ADS)

The AlB 2 (1 1 1) surfaces and Al (1 1 1)/AlB 2 (0 0 0 1) interface were studied by first-principles calculations to clarify the heterogeneous nucleation potential of ?-Al grains on AlB 2 particles in purity aluminium and hypoeutectic Al-Si alloys. It is demonstrated that the AlB 2 (0 0 0 1) surface models with more than nine atomic layers exhibit bulk-like interior, wherein the interlayer relaxations localized within the top three layers are well converged. The outmost layer of AlB 2 free surface having a preference of metal atom termination is evidenced by surface energy calculations. With Al atoms continuing the natural stacking sequence of bulk AlB 2, Al-Al metallic bonds are formed across interface during the combination of Al atoms with Al-terminated AlB 2 surface. The calculated interfacial energy of the Al/AlB 2 interface is much larger than that between the ?-Al and aluminium melts, elucidating the poor nucleation potency of ?-Al grains on AlB 2 particles from thermodynamic considerations.

Han, Y. F.; Dai, Y. B.; Wang, J.; Shu, D.; Sun, B. D.

2011-06-01

79

Mg isotopic heterogeneity, Al-Mg isochrons, and canonical 26Al/27Al in the early solar system  

NASA Astrophysics Data System (ADS)

Abstract-There is variability in the Mg isotopic composition that is a reflection of the widespread heterogeneity in the isotopic composition of the elements in the solar system at approximately 100 ppm. Measurements on a single calcium-aluminum-rich inclusion (CAI) gave a good correlation of 26Mg/24Mg with 27<span class="hlt">Al</span>/24Mg, yielding an isochron corresponding to an initial (26<span class="hlt">Al</span>/27<span class="hlt">Al</span>)o = (5.27 ± 0.18) × 10-5 and an initial (26Mg/24Mg)o = -0.127 ± 0.032‰ relative to the standard. This isochron is parallel to that obtained by <link href="#b41 #b42">Jacobsen et <span class="hlt">al</span>. (2008), but is distinctively offset. This demonstrates that there are different initial Mg isotopic compositions in different samples with the same 26<span class="hlt">Al</span>/27<span class="hlt">Al</span>. No inference about uniformity/heterogeneity of 26<span class="hlt">Al</span>/27<span class="hlt">Al</span> on a macro scale can be based on the initial (26Mg/24Mg)o values. Different values of 26<span class="hlt">Al</span>/27<span class="hlt">Al</span> for samples representing the same point in time would prove heterogeneity of 26<span class="hlt">Al</span>/27<span class="hlt">Al</span>. The important issue is whether the bulk solar inventory of 26<span class="hlt">Al</span>/27<span class="hlt">Al</span> was approximately 5 × 10-5 at some point in the early solar system. We discuss ultra refractory phases of solar type oxygen isotope composition with 26<span class="hlt">Al</span>/27<span class="hlt">Al</span> from approximately 5 × 10-5 to below 0.2 × 10-5. We argue that the real issues are: intrinsic heterogeneity in the parent cloud; mechanism and timing for the later production of 16O-poor material; and the relationship to earlier formed 16O-rich material in the disk. 26<span class="hlt">Al</span>-free refractories can be produced at a later time by late infall, if there is an adequate heat source, or from original heterogeneities in the placental molecular cloud from which the solar system formed.</p> <div class="credits"> <p class="dwt_author">Wasserburg, G. J.; Wimpenny, Josh; Yin, Qing-Zhu</p> <p class="dwt_publisher"></p> <p class="publishDate">2012-12-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">80</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://darmuseum.org.kw/dai/the-collections/"> <span id="translatedtitle">The Collections - Dar <span class="hlt">al</span>-Athar <span class="hlt">al</span>-Islamiyyah</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://nsdl.org/nsdl_dds/services/ddsws1-1/service_explorer.jsp">NSDL National Science Digital Library</a></p> <p class="result-summary">Regarded by experts as one of a handful of the most comprehensive collections of Islamic art in the world, the <span class="hlt">al</span>-Sabah holdings in Kuwait feature 20,000 objects from geographically and chronologically diverse locations. Nine categories - Metals, Ceramics, Glass, Ivory & Wood, Jewelry & Hardstone, Numismatics, Rugs & Textiles, Manuscripts & Calligraphy, and Stone & Stucco - can be accessed from the collections page with the click of a mouse. Within each category, short essays contextualize the beautiful photographs of ancient, medieval, and modern Islamic art in a wide variety of mediums and styles.</p> <div class="credits"> <p class="dwt_author"></p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div id="filter_results_form" class="filter_results_form floatContainer" style="visibility: visible;"> <div style="width:100%" id="PaginatedNavigation" class="paginatedNavigationElement"> <a id="FirstPageLink" onclick='return showDiv("page_1");' href="#" title="First Page"> <img id="FirstPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.first.18x20.png" alt="First Page" /></a> <a id="PreviousPageLink" onclick='return showDiv("page_3");' href="#" title="Previous Page"> <img id="PreviousPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.previous.18x20.png" alt="Previous Page" /></a> <span id="PageLinks" class="pageLinks"> <span> <a 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showDiv("page_6");' href="#" title="Next Page"> <img id="NextPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.next.18x20.png" alt="Next Page" /></a> <a id="LastPageLink" onclick='return showDiv("page_25.0");' href="#" title="Last Page"> <img id="LastPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.last.18x20.png" alt="Last Page" /></a> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">81</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.gpo.gov:80/fdsys/pkg/FR-2012-12-11/pdf/2012-29870.pdf"> <span id="translatedtitle">77 FR 73732 - In the Matter of Amendment of the Designation of <span class="hlt">al</span>-Qa'ida in Iraq, aka Jam'at <span class="hlt">al</span> Tawhid wa'<span class="hlt">al</span>...</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.gpo.gov/fdsys/browse/collection.action?collectionCode=FR">Federal Register 2010, 2011, 2012, 2013</a></p> <p class="result-summary">...<span class="hlt">al</span>-Rafidayn, aka The Organization of <span class="hlt">al</span>-Jihad's Base of Operations in Iraq, aka <span class="hlt">al</span>-Qaida of Jihad in Iraq, aka <span class="hlt">al</span>-Qaida in Iraq, aka <span class="hlt">al</span>-Qaida in Mesopotamia, aka <span class="hlt">al</span>-Qaida in the Land of the Two Rivers, aka <span class="hlt">al</span>-Qaida of the...</p> <div class="credits"> <p class="dwt_author"></p> <p class="dwt_publisher"></p> <p class="publishDate">2012-12-11</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">82</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/40366577"> <span id="translatedtitle">Electrochemical behaviour and corrosion inhibition of <span class="hlt">Al</span>, <span class="hlt">Al</span>6061 and <span class="hlt">Al</span>–Cu in neutral aqueous solutions</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">The electrochemical behaviour of <span class="hlt">Al</span> and two of its widely used alloys, <span class="hlt">Al</span>-6061 and <span class="hlt">Al</span>–Cu, was investigated in neutral solutions at pH 7. The corrosion inhibition of these materials was studied in neutral solutions using sulphates, molybdates and dichromates as passivators. The effectiveness of dichromates as passivators for <span class="hlt">Al</span> and its alloys in these solutions was discussed. X-ray photoelectron spectroscopy</p> <div class="credits"> <p class="dwt_author">W. A. Badawy; F. M. Al-Kharafi; A. S. El-Azab</p> <p class="dwt_publisher"></p> <p class="publishDate">1999-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">83</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=19940032245&hterms=base+comp&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D10%26Ntt%3Dbase%2Bcomp"> <span id="translatedtitle">Ni<span class="hlt">Al</span>-base composite containing high volume fraction of <span class="hlt">Al</span>N for advanced engines</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p class="result-summary">A particulate reinforced Ni<span class="hlt">Al-Al</span>N composite alloy has a Ni<span class="hlt">Al</span> matrix and greater than about 13 volume percent fine particles of <span class="hlt">Al</span>N within the matrix. The particles preferably have a diameter from about 15 nanometers to about 50 nanometers. The particulate reinforced Ni<span class="hlt">Al-Al</span>N composite alloy may be prepared by cryomilling prealloyed Ni<span class="hlt">Al</span> in liquid nitrogen using grinding media having a diameter of from about 2 to 6 mm at an impeller speed of from about 450 RPM to about 800 RPM. The cryomilling may be done for a duration of from about 4 hours to about 20 hours to obtain a cryomilled powder. The cryomilled powder may be consolidated to form the particulate reinforced Ni<span class="hlt">Al-Al</span>N composite alloy. The particulate reinforced alloy can further include a toughening alloy. The toughening alloy may include NiCr<span class="hlt">Al</span>Y, FeCr<span class="hlt">Al</span>Y, and Fe<span class="hlt">Al</span>.</p> <div class="credits"> <p class="dwt_author">Hebsur, Mohan (inventor); Whittenbeger, John D. (inventor); Lowell, Carl F. (inventor)</p> <p class="dwt_publisher"></p> <p class="publishDate">1994-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">84</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/40360843"> <span id="translatedtitle">New <span class="hlt">Al–Al</span>N composites fabricated by squeeze casting: interfacial phenomena</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Three <span class="hlt">Al–Al</span>N composites (2024, 6060, 5754 with ?45vol% <span class="hlt">Al</span>N) fabricated by squeeze casting were studied by TEM. Chemical reactions occurring at the matrix–<span class="hlt">Al</span>N interfaces have been investigated. Mg<span class="hlt">Al</span>2O4 spinel crystals were found in 6060 and 5754 composites. The magnesium element of the matrix reacts with a very thin alumina layer which is deposited on the <span class="hlt">Al</span>N surfaces during the liquid</p> <div class="credits"> <p class="dwt_author">J Vicens; M Chédru; J. L Chermant</p> <p class="dwt_publisher"></p> <p class="publishDate">2002-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">85</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://sims.ess.ucla.edu/argonlab/pdf/young_etal_Science_2005.pdf"> <span id="translatedtitle">Supra-Canonical 26<span class="hlt">Al</span>/27<span class="hlt">Al</span> and the Residence Time of CAIs in the</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">Supra-Canonical 26<span class="hlt">Al</span>/27<span class="hlt">Al</span> and the Residence Time of CAIs in the Solar Protoplanetary Disk Edward D initial 26<span class="hlt">Al</span>/27<span class="hlt">Al</span> ratio of 4.5 Ã? 10­5 has been a fiducial marker for the beginning of the solar system that some CAIs had initial 26<span class="hlt">Al</span>/27<span class="hlt">Al</span> values at least 25% greater than canonical and that the canonical</p> <div class="credits"> <p class="dwt_author">Harrison, Mark</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">86</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/servlets/purl/7368756"> <span id="translatedtitle">The <span class="hlt">ALS</span> Gun Electronics system</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">The <span class="hlt">ALS</span> Gun Electronics system has been designed to accommodate gun with a custom made socket and high speed electronics circuit which is capable of producing single and multiple electron bunches with time jitters measured at better than 50 PS. The system generates the gated RF signal at ground level before sending it up to the 120 KV-biased gun deck via a fiber optic cable. The current pulse width as a function of grid bias, using an Eimac 8847A planar triode simulating an electron gun, was measured to show the relationship between the two parameters.</p> <div class="credits"> <p class="dwt_author">Lo, C.C.</p> <p class="dwt_publisher"></p> <p class="publishDate">1993-05-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">87</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://arep.med.harvard.edu/pdf/Church98_opore.pdf"> <span id="translatedtitle">United States Patent [19] Church et <span class="hlt">al</span>.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">United States Patent [19] Church et <span class="hlt">al</span>. [54] CHARACTERIZATION OF INDIVIDUAL POLYMER MOLECULES BASED 1111111111111111111111111111111111111111111111111111111111111 US005795782A [11] Patent Number: [45] Date of Patent: 5,795,782 Aug. 18, 1998 Boulanger et <span class="hlt">al</span></p> <div class="credits"> <p class="dwt_author">Church, George M.</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">88</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/biblio/6044393"> <span id="translatedtitle">Characterization of Nb/<span class="hlt">Al</span>O/sub x-/<span class="hlt">Al</span>/Nb junction structures by anodization spectroscopy</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">The thin tunneling barrier in Nb/<span class="hlt">AlOx-Al</span>/Nb Josephson junction was characterized by anodization spectroscopy. The authors' studies focus on Nb/<span class="hlt">Al</span>Ox and <span class="hlt">Al</span>/Nb interfaces in Nb/<span class="hlt">AlOx-Al</span>/Nb structures made by varying certain process parameters. The interface quality is greatly affected by film thickness, layer sequence, annealing, and existence of a thin oxide. Anodization spectroscopy is a useful technique to diagnose the tunneling barrier in the Nb/<span class="hlt">AlOx-Al</span>/Nb Josephson junctions during fabrication processes.</p> <div class="credits"> <p class="dwt_author">Imamura, T.; Hasuo, S.</p> <p class="dwt_publisher"></p> <p class="publishDate">1989-03-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">89</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://vertes.columbian.gwu.edu/publicat_html/Vertes%202011%20US%207,964,843%20B2.pdf"> <span id="translatedtitle">(12) United States Patent Vertes et <span class="hlt">al</span>.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">(12) United States Patent Vertes et <span class="hlt">al</span>. (54) THREE-DIMENSIONAL MOLECULAR IMAGING BY INFRARED LASER/0012831 <span class="hlt">Al</span> Jan. 21, 2010 Related U.S. Application Data (63) Continuation-in-part of application No. 121176,656,690 B2 6,744,046 B2 6,991,903 B2 7,084,396 B2 12/2003 Crooke et <span class="hlt">al</span>. 612004 Valaskovic et <span class="hlt">al</span>. 112006 Fu</p> <div class="credits"> <p class="dwt_author">Vertes, Akos</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">90</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://vertes.columbian.gwu.edu/publicat_html/Vertes%202011%20US%208,084,734%20B2.pdf"> <span id="translatedtitle">(12) United States Patent Vertes et <span class="hlt">al</span>.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">(12) United States Patent Vertes et <span class="hlt">al</span>. (54) LASER DESORPTION IONIZATION AND PEPTIDE SEQUENCING. (21) Appl. No.: 11/674,671 (22) Filed: Feb. 14,2007 (65) Prior Publication Data US 2009/0321626 <span class="hlt">Al</span> Dec Suizdak et <span class="hlt">al</span>. 6,589,485 B2 7/2003 Koster 6,794,196 B2 912004 Fonash et <span class="hlt">al</span>. 6,846,681 B2 112005 Buriak et</p> <div class="credits"> <p class="dwt_author">Vertes, Akos</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">91</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/biblio/22150036"> <span id="translatedtitle">Aluminium distribution in ZSM-5 revisited: The role of <span class="hlt">Al-Al</span> interactions</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">We present a theoretical study of the distribution of <span class="hlt">Al</span> atoms in zeolite ZSM-5 with Si/<span class="hlt">Al</span>=47, where we focus on the role of <span class="hlt">Al-Al</span> interactions rather than on the energetics of <span class="hlt">Al</span>/Si substitutions at individual sites. Using interatomic potential methods, we evaluate the energies of the full set of symmetrically independent configurations of <span class="hlt">Al</span> siting in a Si{sub 94}<span class="hlt">Al</span>{sub 2}O{sub 192} cell. The equilibrium <span class="hlt">Al</span> distribution is determined by the interplay of two factors: the energetics of the <span class="hlt">Al</span>/Si substitution at an individual site, which tends to populate particular T sites (e.g., the T14 site), and the <span class="hlt">Al-Al</span> interaction, which at this Si/<span class="hlt">Al</span> maximises <span class="hlt">Al-Al</span> distances in general agreement with Dempsey's rule. However, it is found that the interaction energy changes approximately as the inverse of the square of the distance between the two <span class="hlt">Al</span> atoms, rather than the inverse of the distance expected if this were merely charge repulsion. Moreover, we find that the anisotropic nature of the framework density plays an important role in determining the magnitude of the interactions, which are not simply dependent on <span class="hlt">Al-Al</span> distances. - Graphical abstract: Role of <span class="hlt">Al-Al</span> interactions in high silica ZSM-5 is shown to be anisotropic in nature and not dependent solely on Coulombic interactions. Highlights: Black-Right-Pointing-Pointer Si-<span class="hlt">Al</span> distribution in ZSM-5 is revisited, stressing the role of the <span class="hlt">Al-Al</span> interaction. Black-Right-Pointing-Pointer Coulomb interactions are not the key factors controlling the <span class="hlt">Al</span> siting. Black-Right-Pointing-Pointer Anisotropy of the framework is identified as a source of departure from Dempsey's rule.</p> <div class="credits"> <p class="dwt_author">Ruiz-Salvador, A. Rabdel, E-mail: rabdel@imre.oc.uh.cu [Group of Materials Developed by Design, Division of Chemistry and Technology of Materials, Institute of Materials Science and Engineering (IMRE), University of Havana, Havana 10400 (Cuba); Grau-Crespo, Ricardo; Gray, Aileen E.; Lewis, Dewi W. [Department of Chemistry, University College London, 20 Gordon Street, London, WC1H OAJ (United Kingdom)] [Department of Chemistry, University College London, 20 Gordon Street, London, WC1H OAJ (United Kingdom)</p> <p class="dwt_publisher"></p> <p class="publishDate">2013-02-15</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">92</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/servlets/purl/10174408"> <span id="translatedtitle">Nonstoichiometry of <span class="hlt">Al</span>-Zr intermetallic phases</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">Nonstoichiometry of metastable cubic {beta}{prime} and equilibrium tetragonal {beta} <span class="hlt">Al</span>-Zr intermetallic phases of the nominal composition <span class="hlt">Al</span>{sub 3}Zr in <span class="hlt">Al</span>-rich alloys has been extensively studied. It is proposed that the ``dark contrast`` of {beta}{prime} core in {beta}{prime}/{sigma}{prime} complex precipitates, in <span class="hlt">Al</span>-Li-Zr based alloys, is caused by incorporation of <span class="hlt">Al</span> and Li atoms into the {beta}{prime} phase on Zr sublattice sites, forming nonstoichiometric <span class="hlt">Al</span>-Zr intermetallic phases, rather than by Li partitioning only. {beta}{prime} particles contain very small amounts of Zr, approximately 5 at.%, much less than the stoichiometric 25 at.% in the <span class="hlt">Al</span>{sub 3}Zr metastable phase. These particles are, according to simulation of high resolution images, of the <span class="hlt">Al</span>{sub 3}(<span class="hlt">Al</span>{sub 0.4}Li{sub 0.4}Zr{sub 0.2}) type. Nonstoichiometric particles of average composition <span class="hlt">Al</span>{sub 4}Zr and <span class="hlt">Al</span>{sub 6}Zr are observed also in the binary <span class="hlt">Al</span>-Zr alloy, even after annealing for several hours at 600{degree}C.</p> <div class="credits"> <p class="dwt_author">Radmilovic, V.; Thomas, G.</p> <p class="dwt_publisher"></p> <p class="publishDate">1994-06-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">93</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2014IJMMM..21..796S"> <span id="translatedtitle">Comparison of Ti<span class="hlt">Al</span>N, <span class="hlt">Al</span>CrN, and <span class="hlt">AlCrN/TiAl</span>N coatings for cutting-tool applications</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">Monolayer and bilayer coatings of Ti<span class="hlt">Al</span>N, <span class="hlt">Al</span>CrN, and <span class="hlt">AlCrN/TiAl</span>N were deposited onto tungsten carbide inserts using the plasma enhanced physical vapor deposition process. The microstructures of the coatings were characterized using scanning electron microscopy (SEM) and atomic force microscopy (AFM). The SEM micrographs revealed that the <span class="hlt">Al</span>CrN and <span class="hlt">AlCrN/TiAl</span>N coatings were uniform and highly dense and contained only a limited number of microvoids. The Ti<span class="hlt">Al</span>N coating was non-uniform and highly porous and contained more micro droplets. The hardness and scratch resistance of the specimens were measured using a nanoindentation tester and scratch tester, respectively. Different phases formed in the coatings were analyzed by X-ray diffraction (XRD). The <span class="hlt">AlCrN/TiAl</span>N coating exhibited a higher hardness (32.75 GPa), a higher Young's modulus (561.97 GPa), and superior scratch resistance ( L CN = 46 N) compared to conventional coatings such as Ti<span class="hlt">Al</span>N, <span class="hlt">Al</span>CrN, and TiN.</p> <div class="credits"> <p class="dwt_author">Sampath Kumar, T.; Balasivanandha Prabu, S.; Manivasagam, Geetha; Padmanabhan, K. A.</p> <p class="dwt_publisher"></p> <p class="publishDate">2014-08-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">94</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://sci.kj.yamagata-u.ac.jp/~htomimatsu/reprints/Tomimatsu_2007_JpnJEcol.pdf"> <span id="translatedtitle">Klimes et <span class="hlt">al</span>. 1997 Dioscorea japonica</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">and Silvertown 2004 Charpentier et <span class="hlt">al</span>. 2000 Eckert 2000 Maynard Smith 1980 Utricularia australis f. tenuicaulis U. macrorhiza U. australis F1 Kameyama et <span class="hlt">al</span>. 2005 Kameyama and Ohara 2006 3 genet #12;262 Barrett et <span class="hlt">al</span>. 1993, Ohara M (2005) Hybrid origins and F1 dominance in the free-floating, sterile bladderwort, Utricularia</p> <div class="credits"> <p class="dwt_author">Tomimatsu,, Hiroshi</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">95</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://hal.inria.fr/docs/00/14/36/39/PDF/Lazennec.pdf"> <span id="translatedtitle">Freund et <span class="hlt">al</span>. Mechanisms underlying differential expression</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">), colon (Brew et <span class="hlt">al</span>., 1996), lung (Masuya et <span class="hlt">al</span>., 2001), ovary (Xu & Fidler, 2000) and melanoma cancersFreund et <span class="hlt">al</span>. - 1 - Mechanisms underlying differential expression of interleukin-8 in breast cancer, Françoise Vignon and Gwendal Lazennec ¶ INSERM U540 "Molecular and Cellular Endocrinology of Cancers", 60</p> <div class="credits"> <p class="dwt_author">Boyer, Edmond</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">96</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/52758384"> <span id="translatedtitle">Ag-<span class="hlt">Al</span>-Mg (Silver - Aluminium - Magnesium)</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">This document is part of Subvolume A1 'Light Metal Systems. Part 1: Selected Systems from Ag-<span class="hlt">Al</span>-Cu to <span class="hlt">Al</span>-Cu-Er' of Volume 11 'Ternary Alloy Systems - Phase Diagrams, Crystallographic and Thermodynamic Data critically evaluated by MSIT®' of Landolt-Börnstein - Group IV Physical Chemistry. It provides the data for the ternary system Ag-<span class="hlt">Al</span>-Mg (Silver - Aluminium - Magnesium).</p> <div class="credits"> <p class="dwt_author"></p> <p class="dwt_publisher"></p> <p class="publishDate">2004-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">97</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=19920064247&hterms=resistance+change&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D70%26Ntt%3Dresistance%2Bchange"> <span id="translatedtitle">Cyclic oxidation resistance of a reaction milled Ni<span class="hlt">Al-Al</span>N composite</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p class="result-summary">Based upon recent mechanical property tests a Ni<span class="hlt">Al-Al</span>N composite produced by cryomilling has very attractive high temperature strength. This paper focuses on the oxidation resistance of the Ni<span class="hlt">Al-Al</span>N composite at 1473 and 1573 K as compared to that of Ni-47<span class="hlt">Al</span>-0.15Zr, one of the most oxidation resistant intermetallics. The results of cyclic oxidation tests show that the Ni<span class="hlt">Al-Al</span>N composite has excellent properties although not quite as good as those of Ni-47<span class="hlt">Al</span>-0.15Zr. The onset of failure of the Ni<span class="hlt">Al-Al</span>N was unique in that it was not accompanied by a change in scale composition from alumina to less protective oxides. Failure in the composite appears to be related to the entrapment of <span class="hlt">Al</span>N particles within the alumina scale.</p> <div class="credits"> <p class="dwt_author">Lowell, Carl E.; Barrett, Charles A.; Whittenberger, J. D.</p> <p class="dwt_publisher"></p> <p class="publishDate">1990-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">98</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=20040087167&hterms=factors+required+decision+making&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D80%26Ntt%3Dfactors%2Brequired%2Bdecision%2Bmaking"> <span id="translatedtitle">Systems Engineering Techniques for <span class="hlt">ALS</span> Decision Making</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p class="result-summary">The Advanced Life Support (<span class="hlt">ALS</span>) Metric is the predominant tool for predicting the cost of <span class="hlt">ALS</span> systems. Metric goals for the <span class="hlt">ALS</span> Program are daunting, requiring a threefold increase in the <span class="hlt">ALS</span> Metric by 2010. Confounding the problem, the rate new <span class="hlt">ALS</span> technologies reach the maturity required for consideration in the <span class="hlt">ALS</span> Metric and the rate at which new configurations are developed is slow, limiting the search space and potentially giving the perspective of a <span class="hlt">ALS</span> technology, the <span class="hlt">ALS</span> Metric may remain elusive. This paper is a sequel to a paper published in the proceedings of the 2003 ICES conference entitled, "Managing to the metric: an approach to optimizing life support costs." The conclusions of that paper state that the largest contributors to the <span class="hlt">ALS</span> Metric should be targeted by <span class="hlt">ALS</span> researchers and management for maximum metric reductions. Certainly, these areas potentially offer large potential benefits to future <span class="hlt">ALS</span> missions; however, the <span class="hlt">ALS</span> Metric is not the only decision-making tool available to the community. To facilitate decision-making within the <span class="hlt">ALS</span> community a combination of metrics should be utilized, such as the Equivalent System Mass (ESM)-based <span class="hlt">ALS</span> metric, but also those available through techniques such as life cycle costing and faithful consideration of the sensitivity of the assumed models and data. Often a lack of data is cited as the reason why these techniques are not considered for utilization. An existing database development effort within the <span class="hlt">ALS</span> community, known as OPIS, may provide the opportunity to collect the necessary information to enable the proposed systems analyses. A review of these additional analysis techniques is provided, focusing on the data necessary to enable these. The discussion is concluded by proposing how the data may be utilized by analysts in the future.</p> <div class="credits"> <p class="dwt_author">Rodriquez, Luis F.; Drysdale, Alan E.; Jones, Harry; Levri, Julie A.</p> <p class="dwt_publisher"></p> <p class="publishDate">2004-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">99</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=PIA07216&hterms=Arabic+Arabic+al-+arab+yah&qs=N%3D0%26Ntk%3DAll%26Ntx%3Dmode%2Bmatchall%26Ntt%3DArabic%2B%257C%2B%25D8%25A7%25D9%2584%25D8%25B9%25D8%25B1%25D8%25A8%25D9%258A%25D8%25A9%2B%257C%2Bal-%25CA%25BBarab%25C4%25AByah%2B%257C%2B%25D8%25B9%25D8%25B1%25D8%25A8%25D9%258A%252F%2526"> <span id="translatedtitle">Opportunity's 'Rub <span class="hlt">al</span> Khali' Panorama</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p class="result-summary"><p/> [figure removed for brevity, see original site] Click on the image for Opportunity's 'Rub <span class="hlt">al</span> Khali' Panorama (QTVR) <p/> This panoramic image, dubbed 'Rub <span class="hlt">al</span> Khali,' was acquired by NASA's Mars Exploration Rover Opportunity on the plains of Meridiani during the period from the rover's 456th to 464th sols on Mars (May 6 to May 14, 2005). Opportunity was about 2 kilometers (1.2 miles) south of 'Endurance Crater' at a place known informally as 'Purgatory Dune.' <p/> The rover was stuck in the dune's deep fine sand for more than a month. 'Rub <span class="hlt">al</span> Khali' (Arabic translation: 'the empty quarter') was chosen as the name for this panorama because it is the name of a similarly barren, desolate part of the Saudi Arabian desert on Earth. <p/> The view spans 360 degrees. It consists of images obtained in 97 individual pointings of the panoramic camera. The camera took images with five camera filters at each pointing. This 22,780-by-6,000-pixel mosaic is an approximately true-color rendering generated using the images acquired through filters admitting light wavelengths of 750, 530, and 480 nanometers. <p/> Lighting varied during the nine sols it took to acquire this panorama, resulting in some small image seams within the mosaic. These seams have been smoothed in sky parts of the mosaic to better simulate the vista that a person would see if able to view it all at the same time on Mars. <p/> Opportunity's tracks leading back to the north (center of the panorama) are a reminder of the rover's long trek from Endurance Crater. The deep ruts dug by Opportunity's wheels as it became stuck in the sand appear in the foreground. The crest and trough of the last ripple the rover crossed before getting stuck is visible in the center. These wind-formed sand features are only about 10 to 15 centimeters (4 to 6 inches) tall. The crest of the actual ripple where the rover got stuck can be seen just to the right of center. The tracks and a few other places on and near ripple crests can be seen in this color image to be dustier than the undisturbed or 'normal' plains soils in Meridiani. Since the time these ruts were made, some of the dust there has been blown away by the wind, reaffirming the dynamic nature of the martian environment, even in this barren, ocean-like desert of sand.</p> <div class="credits"> <p class="dwt_author"></p> <p class="dwt_publisher"></p> <p class="publishDate">2005-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">100</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2013ApPhL.102e1912S"> <span id="translatedtitle">Oxidation induced softening in <span class="hlt">Al</span> nanowires</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">The mechanical properties of metallic nanowires depend dramatically on the atmospheric conditions. Molecular-dynamics simulations with ReaxFF were conducted to study tensile elastic deformation of oxidized <span class="hlt">Al</span> nanowires. The thin amorphous oxide shell formed around <span class="hlt">Al</span> nanowires had a very low Young's modulus of 26 GPa, due to its low density and low <span class="hlt">Al</span>-O coordination. Consequently, for diameters less than 100 nm, the composite Young's modulus of oxide-covered <span class="hlt">Al</span> nanowires showed a size dependence implying that in this case "smaller is softer." The model developed also explained the discrepancies in the reported modulus values of nanometer-scale <span class="hlt">Al</span> thin films.</p> <div class="credits"> <p class="dwt_author">Sen, Fatih G.; Qi, Yue; van Duin, Adri C. T.; Alpas, Ahmet T.</p> <p class="dwt_publisher"></p> <p class="publishDate">2013-02-01</p> </div> </div> </div> </div> <div id="filter_results_form" class="filter_results_form floatContainer" style="visibility: visible;"> <div style="width:100%" id="PaginatedNavigation" class="paginatedNavigationElement"> <a id="FirstPageLink" onclick='return showDiv("page_1");' href="#" title="First Page"> <img id="FirstPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.first.18x20.png" alt="First Page" /></a> <a id="PreviousPageLink" onclick='return showDiv("page_4");' href="#" title="Previous Page"> <img id="PreviousPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.previous.18x20.png" alt="Previous Page" /></a> <span id="PageLinks" class="pageLinks"> <span> <a onClick='return showDiv("page_1");' href="#">1</a> <a onClick='return showDiv("page_2");' href="#">2</a> <a onClick='return showDiv("page_3");' href="#">3</a> <a onClick='return 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Page" /></a> <a id="LastPageLink" onclick='return showDiv("page_25.0");' href="#" title="Last Page"> <img id="LastPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.last.18x20.png" alt="Last Page" /></a> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">101</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2009bein.book...29D"> <span id="translatedtitle">Instandhaltungsmanagement <span class="hlt">als</span> Gestaltungsfeld Ganzheitlicher Produktionssysteme</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">Sich kontinuierlich verändernde Rahmenbedingungen, wie beispielsweise eine steigende Variantenvielfalt, verkürzte Produktlebenszyklen sowie Kundenforderungen nach höherer Qualität, kürzeren Lieferzeiten und geringeren Kosten, fordern von produzierenden Unternehmen eine stetige Anpassung der Prozesse, der Organisation und der Strukturen. Seit den 90er Jahren versuchen immer mehr deutsche Unternehmen diesen veränderten Anforderungen mit der Einführung eines Ganzheitlichen Produktionssystems (GPS) zu begegnen. Ganzheitliche Produktionssysteme sind dabei in ihren Grundlagen an das Toyota Produktionssystem angelehnt, vereinigen aber auch weitere Methoden zu einem unternehmensspezifischen Regelwerk. Im Rahmen des langfristigen Trends zu unternehmensindividuellen Produktionssystemen wird sowohl in der Industrie <span class="hlt">als</span> auch in der Forschung intensiv über das Toyota Produktionssystem, Lean Production, Lean Management und Ganzheitliche Produktionssysteme diskutiert, werden Konzepte zu Implementierung und Betrieb erstellt und die Wirtschaftlichkeit untersucht.</p> <div class="credits"> <p class="dwt_author">Dombrowski, Uwe; Schulze, Sven; Otano, Isabel Crespo</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">102</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2013JTST...22.1283S"> <span id="translatedtitle">Reactive Plasma Spraying of Fine <span class="hlt">Al</span>2O3/<span class="hlt">Al</span>N Feedstock Powder</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">Reactive plasma spraying (RPS) is a promising technology for in situ formation of aluminum nitride (<span class="hlt">Al</span>N) coatings. Recently, <span class="hlt">Al</span>N-based coatings were fabricated by RPS of alumina (<span class="hlt">Al</span>2O3) powder in N2/H2 thermal plasma. This study investigated the feasibility of RPS of a fine <span class="hlt">Al</span>2O3/<span class="hlt">Al</span>N mixture and the influence of the plasma gases (N2, H2) on the nitriding conversion, and coating microstructure and properties. Thick <span class="hlt">AlN/Al</span>2O3 coatings with high nitride content were successfully fabricated. The coatings consist of h-<span class="hlt">Al</span>N, c-<span class="hlt">Al</span>N, <span class="hlt">Al</span>5O6N, ?-<span class="hlt">Al</span>2O3, and a small amount of ?-<span class="hlt">Al</span>2O3. Use of fine particles enhanced the nitriding conversion and the melting tendency by increasing the surface area. Furthermore, the <span class="hlt">Al</span>N additive improved the <span class="hlt">Al</span>N content in the coatings. Increasing the N2 gas flow rate improved the nitride content and complete crystal growth to the h-<span class="hlt">Al</span>N phase, and enhanced the coating thickness. On the other hand, though the H2 gas is required for plasma nitriding of the <span class="hlt">Al</span>2O3 particles, increasing its flow rate decreased the nitride content and the coating thickness. Remarkable influence of the plasma gases on the coating composition, microstructure, and properties was observed during RPS of the fine particles.</p> <div class="credits"> <p class="dwt_author">Shahien, Mohammed; Yamada, Motohiro; Yasui, Toshiaki; Fukumoto, Masahiro</p> <p class="dwt_publisher"></p> <p class="publishDate">2013-12-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">103</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://depts.washington.edu/cosmolab/chem/Al-26_Be-10.pdf"> <span id="translatedtitle">UW Cosmogenic Isotopes <span class="hlt">Al</span>-Be 1 EXTRACTION OF <span class="hlt">Al</span> & Be FROM QUARTZ FOR ISOTOPIC ANALYSIS</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">UW Cosmogenic Isotopes <span class="hlt">Al</span>-Be 1 EXTRACTION OF <span class="hlt">Al</span> & Be FROM QUARTZ FOR ISOTOPIC ANALYSIS Summary This method is used to separate <span class="hlt">Al</span> and Be for AMS analysis from pure quartz samples. After adding Be carrier, quartz is dissolved in HF. The solution is sub-sampled for determination of total <span class="hlt">Al</span> content, then dried</p> <div class="credits"> <p class="dwt_author">Stone, John</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">104</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/53608137"> <span id="translatedtitle">Adhesion and nonwetting-wetting transition in the <span class="hlt">Al\\/alpha-Al</span>2O3 interface</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Using a reactive force field (ReaxFF), we investigated the structural, energetic, and adhesion properties, of both solid and liquid <span class="hlt">Al\\/alpha-Al</span>2O3 interfaces. The ReaxFF was developed solely with ab initio calculations on various phases of <span class="hlt">Al</span> and <span class="hlt">Al</span>2O3 and <span class="hlt">Al</span>-O-H clusters. Our computed lattice constants, elastic constants, surface energies, and calculated work of separation for the solid-solid interface agree well with</p> <div class="credits"> <p class="dwt_author">Qing Zhang; Tahir Çagin; Adri van Duin; William A. Goddard; Yue Qi; Louis G. Hector</p> <p class="dwt_publisher"></p> <p class="publishDate">2004-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">105</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/18507617"> <span id="translatedtitle">Delafossite Cu<span class="hlt">Al</span>O 2 films prepared by reactive sputtering using Cu and <span class="hlt">Al</span> targets</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Composition and structure of Cu<span class="hlt">Al</span>O2 films, deposited through the dc-reactive sputtering method using Cu and <span class="hlt">Al</span> elemental targets and Ar-diluted oxygen gas, were controlled by the Cu and <span class="hlt">Al</span> deposition periods and the postannealing temperature. The delafossite Cu<span class="hlt">Al</span>O2 films were successfully prepared by the postannealing of the films with [Cu]\\/[<span class="hlt">Al</span>]=1 at temperatures higher than 700 °C in the nitrogen atmosphere.</p> <div class="credits"> <p class="dwt_author">N. Tsuboi; Y. Takahashi; S. Kobayashi; H. Shimizu; K. Kato; F. Kaneko</p> <p class="dwt_publisher"></p> <p class="publishDate">2003-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">106</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/biblio/22162790"> <span id="translatedtitle">Atom probe analysis of <span class="hlt">Al</span>N interlayers in <span class="hlt">AlGaN/Al</span>N/GaN heterostructures</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">Atom probe tomography was used to characterize <span class="hlt">Al</span>N interlayers in <span class="hlt">AlGaN/Al</span>N/GaN heterostructures grown by plasma-assisted molecular beam epitaxy (PAMBE), NH{sub 3}-based molecular beam epitaxy (NH{sub 3}-MBE), and metal-organic chemical vapor deposition (MOCVD). The PAMBE-grown <span class="hlt">Al</span>N interlayer had the highest purity, with nearly 100% of group-III sites occupied by <span class="hlt">Al</span>. The group-III site concentrations of <span class="hlt">Al</span> for interlayers grown by NH{sub 3}-MBE and MOCVD were {approx}85% and {approx}47%, respectively. Hall measurements were performed to determine the two-dimensional electron gas mobility and sheet concentration. Sheet concentrations were {approx}25%-45% higher with molecular beam epitaxy than with MOCVD, and these results matched well with atom probe data.</p> <div class="credits"> <p class="dwt_author">Mazumder, Baishakhi; Kaun, Stephen W.; Speck, James S. [Materials Department, University of California, Santa Barbara, California 93106 (United States)] [Materials Department, University of California, Santa Barbara, California 93106 (United States); Lu, Jing; Keller, Stacia; Mishra, Umesh K. [Electrical and Computer Engineering Department, University of California, Santa Barbara, California 93106 (United States)] [Electrical and Computer Engineering Department, University of California, Santa Barbara, California 93106 (United States)</p> <p class="dwt_publisher"></p> <p class="publishDate">2013-03-18</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">107</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=19970023021&hterms=Messing&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D60%26Ntt%3DMessing"> <span id="translatedtitle">Tensile Behavior of <span class="hlt">Al</span>2o3/feal + B and <span class="hlt">Al</span>2o3/fecraly Composites</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p class="result-summary">The feasibility of <span class="hlt">Al</span>2O3/Fe<span class="hlt">Al</span> + B and <span class="hlt">Al</span>2O3/FeCr<span class="hlt">Al</span>Y composites for high-temperature applications was assessed. The major emphasis was on tensile behavior of both the monolithics and composites from 298 to 1100 K. However, the study also included determining the chemical compatibility of the composites, measuring the interfacial shear strengths, and investigating the effect of processing on the strength of the single-crystal <span class="hlt">Al</span>2O3 fibers. The interfacial shear strengths were low for <span class="hlt">Al</span>203/Fe<span class="hlt">Al</span> + B and moderate to high for <span class="hlt">Al</span>203/FeCr<span class="hlt">Al</span>Y. The difference in interfacial bond strengths between the two systems affected the tensile behavior of the composites. The strength of the <span class="hlt">Al</span>203 fiber was significantly degraded after composite processing for both composite systems and resulted in poor composite tensile properties. The ultimate tensile strength (UTS) values of the composites could generally be predicted with either rule of mixtures (ROM) calculations or existing models when using the strength of the etched-out fiber. The <span class="hlt">Al</span>2O3/Fe<span class="hlt">Al</span> + B composite system was determined to be unfeasible due to poor interfacial shear strengths and a large mismatch in coefficient of thermal expansion (CTE). Development of the <span class="hlt">Al</span>2O3/FeCr<span class="hlt">Al</span>Y system would require an effective diffusion barrier to minimize the fiber strength degradation during processing and elevated temperature service.</p> <div class="credits"> <p class="dwt_author">Draper, S. L.; Eldridge, J. I.; Aiken, B. J. M.</p> <p class="dwt_publisher"></p> <p class="publishDate">1995-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">108</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/58715877"> <span id="translatedtitle">Una aproximación didáctica <span class="hlt">al</span> Guernica de Picasso</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">L’article presenta una aproximació <span class="hlt">al</span> Guernica, de Pablo Picasso, mitjançant l’anàlisi de les seves possibilitats per a l’estudi de la pintura i de la relació entre la creació i el coneixement de la Història de l’Art. <span class="hlt">Al</span> mateix temps, es presenta un model de treball que s’inicia amb una mirada <span class="hlt">als</span> problemes derivats de l’observació per tal d’assolir la interpretació</p> <div class="credits"> <p class="dwt_author">Antonia Fernández Valencia</p> <p class="dwt_publisher"></p> <p class="publishDate">2003-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">109</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/13327420"> <span id="translatedtitle">Overlay-Netze <span class="hlt">als</span> Innovationsmotor im Internet</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Zusammenfassung  Das Internet ist heute eine globale Infrastruktur, deren ständige Verfügbarkeit mehr oder weniger <span class="hlt">als</span> gegeben angenommen wird.\\u000a Die Einführung neuer Technologien (z.?B. Multicast, IPv6) in diese Infrastruktur erweist sich aus unterschiedlichen Gründen\\u000a <span class="hlt">als</span> schwierig. Vielmehr haben sich Overlay-Netze in diesem Kontext <span class="hlt">als</span> Innovationsmotor etabliert. Diese werden von Endgeräten\\u000a am Netzrand aufgespannt, benötigen somit keine neuen Komponenten in der Netzinfrastruktur und</p> <div class="credits"> <p class="dwt_author">Oliver P. Waldhorst; Roland Bless; Martina Zitterbart</p> <p class="dwt_publisher"></p> <p class="publishDate">2010-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">110</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://kuscholarworks.ku.edu/handle/1808/3402"> <span id="translatedtitle">Teatro <span class="hlt">al</span> Sur y la escena Argentina</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">140 LATIN AMERICAN THEATRE REVIEW Teatro <span class="hlt">al</span> Sur y la escena Argentina Acaba de aparecer un nuevo número de Teatro <span class="hlt">al</span> Sur, Revista Latinoamericana. Su título de tapa - Teatro Argentino a varias voces - resume la intención de esta nueva entrega... publicación: nos pareció oportuno apelar <span class="hlt">al</span> testimonio directo de algunos de nuestros creadores y a través de sus voces - con particulares texturas y coloraturas - ir configurando un fragmento significativo del presente de nuestra escena. Hemos preferido...</p> <div class="credits"> <p class="dwt_author">Editors</p> <p class="dwt_publisher"></p> <p class="publishDate">2000-04-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">111</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/servlets/purl/827568"> <span id="translatedtitle">Superbend era begins swiftly at the <span class="hlt">ALS</span></span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">The successful installation and commissioning of high-field superconducting bend magnets (superbends) in three curved sectors of <span class="hlt">ALS</span> storage ring was the first time the magnet lattice of an operating synchrotron light source has been retrofitted in this fundamental way. As a result, the <span class="hlt">ALS</span> now offers an expanded spectral range well into the hard x-ray region without compromising either the number of undulators or their high brightness in the soft x-ray region for which the <span class="hlt">ALS</span> design was originally optimized. In sum, when the superbend-enhanced <span class="hlt">ALS</span> started up for user operations in October 2001, it marked the beginning of a new era in its history.</p> <div class="credits"> <p class="dwt_author">Robinson, Art; Tamura, Lori</p> <p class="dwt_publisher"></p> <p class="publishDate">2001-11-29</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">112</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2013JCrGr.383...25P"> <span id="translatedtitle">Growth and characterization of <span class="hlt">AlGaN/AlN/GaN/Al</span>GaN double heterojunction structures with <span class="hlt">Al</span>GaN as buffer layers</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">High electron mobility transistors (HEMTs) structures with GaN, <span class="hlt">Al</span>0.025Ga0.975N and <span class="hlt">Al</span>0.04Ga0.96N high resistivity (HR) buffers were grown on sapphire by metal organic chemical vapor deposition (MOCVD). The structural and electrical properties of these three samples were investigated and compared. By increasing <span class="hlt">Al</span> composition of <span class="hlt">Al</span>GaN buffer, full width at half maximum (FWHM) values of (0002) and (10-12) x-ray rocking curves for buffer increase, indicating higher threading dislocation density. Room temperature noncontact Hall measurements were performed, and the measured 2DEG mobility was 1828 cm2/V s for GaN buffer, 1728 cm2/V s for <span class="hlt">Al</span>0.025Ga0.975N buffer, and 1649 cm2/V s for <span class="hlt">Al</span>0.04Ga0.96N buffer, respectively. Combining the theoretical calculation with the experiments, it was demonstrated that the decrease of mobility was attributed to higher dislocation density in sample with higher <span class="hlt">Al</span> composition of <span class="hlt">Al</span>GaN buffer. Devices were fabricated and it was found that the double heterojunction (DH) HEMT with <span class="hlt">Al</span>0.025Ga0.975N buffer could effectively reduce the buffer leakage current.</p> <div class="credits"> <p class="dwt_author">Peng, Enchao; Wang, Xiaoliang; Xiao, Hongling; Wang, Cuimei; Yin, Haibo; Chen, Hong; Feng, Chun; Jiang, Lijuan; Hou, Xun; Wang, Zhanguo</p> <p class="dwt_publisher"></p> <p class="publishDate">2013-11-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">113</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/20016104"> <span id="translatedtitle"><span class="hlt">AlN\\/Al</span>GaN\\/GaN Metal Insulator Semiconductor Heterostructure Field Effect Transistor</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">We present the characteristics of a novel <span class="hlt">AlN\\/Al</span>GaN\\/GaN metal insulator semiconductor heterostructure field-effect transistor (MIS-HFET) structure with an <span class="hlt">Al</span>N cap layer as a gate insulating layer. The gate leakage current for the <span class="hlt">AlN\\/Al</span>GaN\\/GaN MIS-HFET was shown to be more than three orders of magnitude smaller than that for the <span class="hlt">Al</span>GaN\\/GaN HFET at around -20 V gate bias. This demonstrates that</p> <div class="credits"> <p class="dwt_author">Dong-Hyun Cho; Mitsuaki Shimizu; Toshihide Ide; Hideyuki Ookita; Hajime Okumura</p> <p class="dwt_publisher"></p> <p class="publishDate">2002-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">114</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/16706418"> <span id="translatedtitle">Observation of triatomic species with conflicting aromaticity: <span class="hlt">Al</span>Si2- and <span class="hlt">Al</span>Ge2-.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">We created mixed triatomic clusters, <span class="hlt">Al</span>CGe(-), <span class="hlt">Al</span>Si(2)(-), and <span class="hlt">Al</span>Ge(2)(-), and studied their electronic structure and chemical bonding using photoelectron spectroscopy and ab initio calculations. Excellent agreement between theoretical and experimental photoelectron spectra confirmed the predicted global minimum structures for these species. Chemical bonding analysis revealed that the <span class="hlt">Al</span>Si(2)(-) and <span class="hlt">Al</span>Ge(2)(-) anions can be described as species with conflicting (sigma-antiaromatic and pi-aromatic) aromaticity. The <span class="hlt">Al</span>CGe(-) anion represents an interesting example of chemical species which is between classical and aromatic. PMID:16706418</p> <div class="credits"> <p class="dwt_author">Zubarev, Dmitry Yu; Boldyrev, Alexander I; Li, Xi; Wang, Lai-Sheng</p> <p class="dwt_publisher"></p> <p class="publishDate">2006-05-25</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">115</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.springerlink.com/index/g8826m46hk4581g1.pdf"> <span id="translatedtitle">Precipitation behavior of Heusler phase (Ni 2 <span class="hlt">Al</span>Hf) in multiphase Ni<span class="hlt">Al</span> alloy</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Precipitation behavior of Heusler phase (Ni2<span class="hlt">Al</span>Hf) in a directionally solidified (DS) Ni<span class="hlt">Al</span>- 28Cr-5Mo-1Hf (at.%) alloy was examined using scanning electron microscope (SEM)\\u000a and transmission electron microscope (TEM). In the as-cast alloy, the Ni2<span class="hlt">Al</span>Hf phase generally appeared on the Ni<span class="hlt">Al</span>\\/Cr(Mo) interface, which degraded the Ni<span class="hlt">Al</span>\\/Cr(Mo) eutectic structure. In the heat-treated\\u000a alloy, the density of the intercellular Ni2<span class="hlt">Al</span>Hf phase was slightly reduced.</p> <div class="credits"> <p class="dwt_author">C. Y. Cui; J. T. Guo; H. Q. Ye</p> <p class="dwt_publisher"></p> <p class="publishDate">2006-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">116</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2011JNuM..410....1K"> <span id="translatedtitle">Interdiffusion in U 3Si-<span class="hlt">Al</span>, U 3Si 2-<span class="hlt">Al</span>, and USi-<span class="hlt">Al</span> dispersion fuels during irradiation</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">Uranium-silicide compound fuel dispersion in an <span class="hlt">Al</span> matrix is used in research and test reactors worldwide. Interaction layer (IL) growth between fuel particles and the matrix is one of performance issues. The interaction layer growth data for U 3Si, U 3Si 2 and USi dispersions in <span class="hlt">Al</span> were obtained from both out-of-pile and in-pile tests. The IL is dominantly U(<span class="hlt">Al</span>Si) 3 from out-of-pile tests, but its (<span class="hlt">Al</span> + Si)/U ratio from in-pile tests is higher than the out-of-pile data, because of amorphous behavior of the ILs. IL growth correlations were developed for U 3Si-<span class="hlt">Al</span> and U 3Si 2-<span class="hlt">Al</span>. The IL growth rates were dependent on the U/Si ratio of the fuel compounds. During irradiation, however, the IL growth rates did not decrease with the decreasing U/Si ratio by fission. It is reasoned that transition metal fission products in the IL compensate the loss of U atoms by providing chemical potential for <span class="hlt">Al</span> diffusion and volume expansion by solid swelling and gas bubble swelling. The addition of Mo in U 3Si 2 reduces the IL growth rate, which is similar to that of UMo alloy dispersion in a silicon-added <span class="hlt">Al</span> matrix.</p> <div class="credits"> <p class="dwt_author">Kim, Yeon Soo; Hofman, Gerard L.</p> <p class="dwt_publisher"></p> <p class="publishDate">2011-03-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">117</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/22492060"> <span id="translatedtitle">Characteristics of Cu<span class="hlt">Al</span> 2 Cu 9 <span class="hlt">Al</span> 4 \\/<span class="hlt">Al</span> 2 O 3 nanocomposites synthesized by mechanical treatment</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Summary Reactive milling of Cu-hydroxycarbonate - powder aluminium mixture brings many complex chemical reactions such as decomposition, aluminothermic reduction and mechanical alloying resulting in the formation of nanometer size composites that contain intermetallic phases, ?-Cu9<span class="hlt">Al</span>4 and ?-Cu<span class="hlt">Al</span>2, with aluminium oxide.</p> <div class="credits"> <p class="dwt_author">K. Wieczorek-Ciurowa; K. Gamrat; Z. Saw?owicz</p> <p class="dwt_publisher"></p> <p class="publishDate">2005-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">118</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2015JMEP...24..426N"> <span id="translatedtitle">Evaluation of Methods of Soldering <span class="hlt">Al</span>Si and <span class="hlt">Al</span>Si-SiC Particle Composite <span class="hlt">Al</span> Foams</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">The cellular structure and unique properties of aluminum foams are the reason of their numerous applications and interests in respect of their joining. The paper includes the characterization of the essence of properties and application of aluminum and aluminum composite foams, the limitations, and possibilities of their soldering. The aim of the research is the consideration of methods of soldering <span class="hlt">Al</span>Si foams and <span class="hlt">Al</span>Si-SiC composite foams, and the joint structure. EDS and XRD investigations of the <span class="hlt">Al</span>Si-SiC composite foams' joints were done. The possibility of soldering <span class="hlt">Al</span>Si9 foams and <span class="hlt">Al</span>Si9-SiC composite foams using S-Bond 220 solder was confirmed, and higher tensile strength of the joint than the parent material was also ascertained</p> <div class="credits"> <p class="dwt_author">Nowacki, Jerzy; Moraniec, Kacper</p> <p class="dwt_publisher"></p> <p class="publishDate">2015-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">119</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://enpub.fulton.asu.edu/cms/papers/siegel_MRS_f2000.pdf"> <span id="translatedtitle">Adhesion, Atomic Structure, and Bonding at theAdhesion, Atomic Structure, and Bonding at the ----<span class="hlt">AlAl</span>22OO33(0001)/<span class="hlt">Al</span>(111) Interface:(0001)/<span class="hlt">Al</span>(111) Interface</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">.5 -3.3 -3.1 -Ecoh/atom[eV] GGA LDA LDA GGA <span class="hlt">Al</span> Bulk 32 34 36 38 40 42 44 46 48 50 52 Volume/<span class="hlt">Al</span>2O3 unit [Ã? 3 ] -39 -38 -37 -36 -35 -34 -33 -32 -31 -30 -Ecoh /<span class="hlt">Al</span>2 O3 unit[eV] GGA LDA GGA LDA <span class="hlt">Al</span>2O3 Bulk #12)<span class="hlt">Al</span>2O3 || (111)<span class="hlt">Al</span> [1010] <span class="hlt">Al</span>2O3 || [110]<span class="hlt">Al</span> <span class="hlt">Al</span>2O3 Oxygen <span class="hlt">Al</span>2O3 Aluminum <span class="hlt">Al</span> Interfacial Atoms Supercells</p> <div class="credits"> <p class="dwt_author">Adams, James B</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">120</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/biblio/653353"> <span id="translatedtitle">Electrochemical passivation of ordered Ni<span class="hlt">Al</span></span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">The passivity and electrochemical behavior of single crystalline, ordered Ni<span class="hlt">Al</span> intermetallic compound in buffered solutions of pH 2, 7, and 12.5 was compared to that of polycrystalline Ni and <span class="hlt">Al</span>. Ni<span class="hlt">Al</span> exhibited improved passivity compared to Ni at a pH of 2, and improved passivity compared to <span class="hlt">Al</span> at pH 12.5. Water oxidation and reduction were enhanced on Ni<span class="hlt">Al</span> compared to <span class="hlt">Al</span>, suggesting the presence of a more conductive or catalytic oxide film. <span class="hlt">Al</span>{sub 2}O{sub 3} was preferentially formed (>60 atom % of all oxidized Ni and <span class="hlt">Al</span> species) throughout the interior of oxide films formed anodically at each pH as well as within the air-formed oxide grown at room temperature. However, the oxide surface layers exhibited a tendency toward nearly equal presence of oxidized Ni{sup +2}, especially as the pH was increased to 7 and 12.5. Therefore, <span class="hlt">Al</span>{sub 2}O{sub 3} formation was favored, but not exclusively, during electrochemical passivation. In contrast, little or no Ni{sup +2} (as NiO or Ni<span class="hlt">Al</span>{sub 2}O{sub 4}) has been reported after high temperature oxidation of Ni<span class="hlt">Al</span>. The composition of the electrochemically grown oxide is influenced by the specific oxide solubility and kinetic formation/dissolution rates at the oxide/solution interface as well as by the free energy of formation of the oxides.</p> <div class="credits"> <p class="dwt_author">Lillard, R.S.; Scully, J.R. [Univ. of Virginia, Charlottesville, VA (United States)</p> <p class="dwt_publisher"></p> <p class="publishDate">1998-06-01</p> </div> </div> </div> </div> <div id="filter_results_form" class="filter_results_form floatContainer" style="visibility: visible;"> <div style="width:100%" id="PaginatedNavigation" class="paginatedNavigationElement"> <a id="FirstPageLink" onclick='return showDiv("page_1");' href="#" title="First Page"> <img id="FirstPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.first.18x20.png" alt="First Page" /></a> <a id="PreviousPageLink" onclick='return showDiv("page_5");' href="#" title="Previous Page"> <img id="PreviousPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.previous.18x20.png" alt="Previous Page" /></a> <span id="PageLinks" class="pageLinks"> <span> <a onClick='return showDiv("page_1");' href="#">1</a> <a onClick='return showDiv("page_2");' href="#">2</a> <a onClick='return showDiv("page_3");' 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href="#">11</a> <a onClick='return showDiv("page_12");' href="#">12</a> <a onClick='return showDiv("page_13");' href="#">13</a> <a onClick='return showDiv("page_14");' href="#">14</a> <a onClick='return showDiv("page_15");' href="#">15</a> <a onClick='return showDiv("page_16");' href="#">16</a> <a onClick='return showDiv("page_17");' href="#">17</a> <a onClick='return showDiv("page_18");' href="#">18</a> <a onClick='return showDiv("page_19");' href="#">19</a> <a onClick='return showDiv("page_20");' href="#">20</a> <a onClick='return showDiv("page_21");' href="#">21</a> <a onClick='return showDiv("page_22");' href="#">22</a> <a onClick='return showDiv("page_23");' href="#">23</a> <a onClick='return showDiv("page_24");' href="#">24</a> <a onClick='return showDiv("page_25");' href="#">25</a> </span> </span> <a id="NextPageLink" onclick='return showDiv("page_8");' href="#" title="Next Page"> <img id="NextPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.next.18x20.png" alt="Next Page" /></a> <a id="LastPageLink" onclick='return showDiv("page_25.0");' href="#" title="Last Page"> <img id="LastPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.last.18x20.png" alt="Last Page" /></a> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">121</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/biblio/115436"> <span id="translatedtitle">Stoichiomeetric interlayer bonding of Ni<span class="hlt">Al</span></span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">New joining methods must be developed in order to fully utilize the high temperature properties of advanced intermetallic alloys such as Ni<span class="hlt">Al</span>. In this study, a liquid-assisted diffusion bonding method is evaluated which eliminates the need for foreign melting-point depressants. Instead, the intermetallic compound, Ni<span class="hlt">Al</span>, is synthesized within the joint by isothermal reaction of elemental Ni and <span class="hlt">Al</span> coatings preplaced in stoichiometric proportions on the surfaces to be joined. The kinetics of this bonding process were evaluated from a series of interrupted thermal treatments. Single-crystal Ni<span class="hlt">Al</span> substrates were coated with a stoichiometric proportion of <span class="hlt">Al</span> on one side of the joint and Ni on the other by electron beam evaporation. The joints were heated in vacuum above the aluminum liquidus (1200{degrees}C) but below the melting point of the Ni<span class="hlt">Al</span> substrates for times between 1 and 32 h. Relatively thick interlayers, 0.25 mm (0.010 in.) <span class="hlt">Al</span> and 0.165 mm (0.0065 in.) Ni, were used to facilitate characterization of the bond evolution. The composition profiles across the joints were measured by electron probe microanalysis. The liquid <span class="hlt">Al</span> readily wet the Ni interlayer such that a commercial stop-off agent was required to control liquid spreading at 1200{degrees}C. Isothermal solidification was completed after approximately 1 h at 1200{degrees}C and a residual layer of Ni solid-solution fully transformed to Ni<span class="hlt">Al</span> within 4 h at 1200{degrees}C. Grain boundary migration across the joint interface was observed for all heat treatments. The process of stoichiometric interlayer bonding was demonstrated to be a feasible, and potentially very useful method for joining intermetallic compounds such as Ni<span class="hlt">Al</span>. Single-phase Ni<span class="hlt">Al</span> bonds were produced at relatively low temperatures, without applied pressure, and without the addition of foreign melting-point depressants.</p> <div class="credits"> <p class="dwt_author">Strum, M.J.; Henshall, G.A. [Lawrence Livermore National Lab., CA (United States)</p> <p class="dwt_publisher"></p> <p class="publishDate">1994-12-31</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">122</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2015JEMat.tmp...23H"> <span id="translatedtitle">Preparation and Thermoelectric Properties of Yb<span class="hlt">Al</span>3 Thermoelectric Materials with Excessive <span class="hlt">Al</span></span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">A method to prepare Yb<span class="hlt">Al</span>3 sample with an accurate stoichiometric ratio has been developed by a melting, quenching, annealing and spark plasma sintering (SPS) method. A series of Yb<span class="hlt">Al</span>3 thermoelectric materials with nominal compositions Yb<span class="hlt">Al</span>3+x (x = 0-0.3, ?x = 0.1) have been prepared using the method. We have explored the effects of the excessive <span class="hlt">Al</span> on phase compositions, microstructure and transport properties. The quenched samples are composed of Yb<span class="hlt">Al</span>3, Yb<span class="hlt">Al</span>2, Yb, and <span class="hlt">Al</span>. All the annealed samples are composed of main phase Yb<span class="hlt">Al</span>3 and a trace of <span class="hlt">Al</span>; some annealed samples with x = 0 and x = 0.1 still contain a trace of Yb<span class="hlt">Al</span>2. The SPSed samples with x ? 0.1 are composed of single-phase Yb<span class="hlt">Al</span>3, though a trace of Yb<span class="hlt">Al</span>2 still occured in the SPSed sample with x = 0. The electrical conductivity, Seebeck coefficient, power factor, thermal conductivity and ZT values are first increased with increasing x in the range of 0-0.2 and then decreased when x > 0.2. These thermoelectric properties evolutions originate from the change of densities and chemical composition induced by the excessive <span class="hlt">Al</span>. The highest ZT value reaches 0.28 at 300 K for the SPSed sample with x = 0.2.</p> <div class="credits"> <p class="dwt_author">He, Dan-qi; Zhao, Wen-Yu; Mu, Xin; Zhou, Hong-yu; Zhang, Qing-jie</p> <p class="dwt_publisher"></p> <p class="publishDate">2015-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">123</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/40939800"> <span id="translatedtitle">Formation of nickel aluminide coating on ?-Ti<span class="hlt">Al</span> alloy</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">A nickel aluminide coating process was developed on ?-Ti<span class="hlt">Al</span> alloy by electroplating a Ni film followed by a high <span class="hlt">Al</span> activity pack cementation carried out in a vacuum with a mixture of fine <span class="hlt">Al</span>, NH4Cl, and <span class="hlt">Al</span>2O3 powders at 1273 K for 18 ks. The coating has a duplex layer structure, an outer Ni2<span class="hlt">Al</span>3 layer and an inner Ti<span class="hlt">Al</span>3\\/Ti<span class="hlt">Al</span>2\\/TiNi<span class="hlt">Al</span>2 layer.</p> <div class="credits"> <p class="dwt_author">Takeshi Izumi; Takumi Nishimoto; Toshio Narita</p> <p class="dwt_publisher"></p> <p class="publishDate">2003-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">124</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/25193032"> <span id="translatedtitle">Sporadic and hereditary amyotrophic lateral sclerosis (<span class="hlt">ALS</span>).</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">Genetic discoveries in <span class="hlt">ALS</span> have a significant impact on deciphering molecular mechanisms of motor neuron degeneration. The identification of SOD1 as the first genetic cause of <span class="hlt">ALS</span> led to the engineering of the SOD1 mouse, the backbone of <span class="hlt">ALS</span> research, and set the stage for future genetic breakthroughs. In addition, careful analysis of <span class="hlt">ALS</span> pathology added valuable pieces to the <span class="hlt">ALS</span> puzzle. From this joint effort, major pathogenic pathways emerged. Whereas the study of TDP43, FUS and C9ORF72 pointed to the possible involvement of RNA biology in motor neuron survival, recent work on P62 and UBQLN2 refocused research on protein degradation pathways. Despite all these efforts, the etiology of most cases of sporadic <span class="hlt">ALS</span> remains elusive. Newly acquired genomic tools now allow the identification of genetic and epigenetic factors that can either increase <span class="hlt">ALS</span> risk or modulate disease phenotype. These developments will certainly allow for better disease modeling to identify novel therapeutic targets for <span class="hlt">ALS</span>. This article is part of a Special Issue entitled: Neuromuscular Diseases: Pathology and Molecular Pathogenesis. PMID:25193032</p> <div class="credits"> <p class="dwt_author">Ajroud-Driss, Senda; Siddique, Teepu</p> <p class="dwt_publisher"></p> <p class="publishDate">2014-09-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">125</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/biblio/1149231"> <span id="translatedtitle">Quantitatively Probing the <span class="hlt">Al</span> Distribution in Zeolites</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">The degree of substitution of Si4+ by <span class="hlt">Al</span>3+ in the oxygen-terminated tetrahedra (<span class="hlt">Al</span> T-sites) of zeolites determines the concentration of ion-exchange and Brønsted acid sites. As the location of the tetrahedra and the associated subtle variations in bond angles influence the acid strength, quantitative information about <span class="hlt">Al</span> T-sites in the framework is critical to rationalize catalytic properties and to design new catalysts. A quantitative analysis is reported that uses a combination of extended X-ray absorption fine structure (EXAFS) analysis and 27<span class="hlt">Al</span> MAS NMR spectroscopy supported by DFT-based molecular dynamics simulations. To discriminate individual <span class="hlt">Al</span> atoms, sets of ab initio EXAFS spectra for various T-sites are generated from DFT-based molecular dynamics simulations allowing quantitative treatment of the EXAFS single- and multiple-photoelectron scattering processes out to 3-4 atom shells surrounding the <span class="hlt">Al</span> absorption center. It is observed that identical zeolite types show dramatically different <span class="hlt">Al</span>-distributions. A preference of <span class="hlt">Al</span> for T-sites that are part of one or more 4-member rings in the framework over those T-sites that are part of only 5- and 6-member rings in the HBEA150 sample has been determined from a combination of these methods. This work was supported by the U. S. Department of Energy (DOE), Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences & Biosciences.</p> <div class="credits"> <p class="dwt_author">Vjunov, Aleksei; Fulton, John L.; Huthwelker, Thomas; Pin, Sonia; Mei, Donghai; Schenter, Gregory K.; Govind, Niranjan; Camaioni, Donald M.; Hu, Jian Z.; Lercher, Johannes A.</p> <p class="dwt_publisher"></p> <p class="publishDate">2014-06-11</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">126</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://hal.inria.fr/docs/00/29/83/74/PDF/osd-3-165-2006.pdf"> <span id="translatedtitle">3, 165198, 2006 G. Petihakis et <span class="hlt">al</span>.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">for the Mediterranean Sea took place under the Mediterranean 166 #12;OSD 3, 165­198, 2006 M3A system G. Petihakis et <span class="hlt">al</span>-ocean conditions in the Mediterranean Sea (Nittis et5 <span class="hlt">al</span>., 2003). This first phase was devoted to the design Abstract During the Pilot Phase of the Mediterranean Forecasting System (MFSPP) (1998­ 2001) a prototype</p> <div class="credits"> <p class="dwt_author">Boyer, Edmond</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">127</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ddd.uab.cat/pub/ruta/20130740n2a6.pdf"> <span id="translatedtitle"><span class="hlt">Al</span> Qaida and islamismo: two different phenomena</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Despite the general media discourse, the identification of the <span class="hlt">Al</span> Qaida phenomenon with the islamist one, and of the islamist phenomenon with terrorism, is not totally right. The aim of the present paper is to contribute to the denial of the prejudice that Islam is the only reason for <span class="hlt">Al</span> Qaida's violence, and to criticize the use media often do</p> <div class="credits"> <p class="dwt_author">Valentina Saini</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">128</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://kuscholarworks.ku.edu/handle/1808/3040"> <span id="translatedtitle">Homenaje <span class="hlt">al</span> medio siglo de TEUCH</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">SPRING 1993 197 Homenaje <span class="hlt">al</span> medio siglo de TEUCH Domingo Piga El 22 de junio de 1941 se presentó <span class="hlt">al</span> público en la sala Imperio un nuevo grupo teatral, el Teatro Experimental de la Universidad de Chile, formado por estudiantes de la Escuela de...</p> <div class="credits"> <p class="dwt_author">Piga, Domingo</p> <p class="dwt_publisher"></p> <p class="publishDate">1993-04-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">129</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/biblio/6089800"> <span id="translatedtitle">Cross-sectional TEM observation of Nb/<span class="hlt">AlOx-Al</span>/Nb junction structures</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">This paper reports on a study of microstructure of Nb/<span class="hlt">Al</span>O{sub x}---<span class="hlt">Al</span>/Nb Josephson junctions by cross-sectional transmission electron microscopy (TEM) which yielded much information regarding the unction barrier region. Both thick Nb and several-nm <span class="hlt">Al</span> form polycrystalline films with columnar structures. Nb is oriented to the (110) plane, and <span class="hlt">Al</span> is (111). The 200-nm lower Nb has a wavy surface with {approximately}5 nm smoothness, but its surface is planarized by several-nm <span class="hlt">Al</span> deposited on it. Thus <span class="hlt">Al</span>O{sub x} with a smoothness under 1 nm can be formed on <span class="hlt">Al</span>. The upper Nb has a good crystalline structure even just above the <span class="hlt">Al</span>O{sub x} barrier.</p> <div class="credits"> <p class="dwt_author">Imamura, T.; Hasuo, S. (Fujitsu Lab., Ltd., 10-1 Morinosato-Wakamiya, Atsugi 243-01 (JP))</p> <p class="dwt_publisher"></p> <p class="publishDate">1991-03-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">130</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/biblio/347546"> <span id="translatedtitle">Effect of zirconium in two phase (Ni<span class="hlt">Al</span> + Ni{sub 3}<span class="hlt">Al</span>) alloy</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">In order to develop nickel aluminides, such as Ni<span class="hlt">Al</span> and Ni{sub 3}<span class="hlt">Al</span> for high-temperature structural applications, extensive work has been focused on improvement of the mechanical properties. Much work has been carried out with single-phase Ni{sub 3}<span class="hlt">Al</span> alloys with L1{sub 2} structure. As a result, remarkable improvements in these areas have been achieved. Single-phase Ni<span class="hlt">Al</span> with B2 structure has also been studied to some extent, but a remedy for room temperature brittleness has not yet been proposed. Nevertheless, little development effort has been devoted to the two-phase alloys composed of Ni<span class="hlt">Al</span> and Ni{sub 3}<span class="hlt">Al</span>. In this investigation, the effect of zirconium addition on the microstructure and compressive deformation properties of the two-phase alloy consisting of Ni<span class="hlt">Al</span> and Ni{sub 3}<span class="hlt">Al</span> is studied.</p> <div class="credits"> <p class="dwt_author">Lee, J.H.; Kim, H.M. [Korea Inst. of Machinery and Metals, Changwon (Korea, Republic of)] [Korea Inst. of Machinery and Metals, Changwon (Korea, Republic of); Choe, B.H. [Kangnung National Univ. (Korea, Republic of)] [Kangnung National Univ. (Korea, Republic of); Lee, Z.H. [Korea Advanced Inst. of Science and Technology, Taejon (Korea, Republic of)] [Korea Advanced Inst. of Science and Technology, Taejon (Korea, Republic of)</p> <p class="dwt_publisher"></p> <p class="publishDate">1999-03-05</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">131</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/biblio/15020715"> <span id="translatedtitle">Stress Corrosion Cracking of <span class="hlt">Al</span>-Mg and Mg-<span class="hlt">Al</span> Alloys</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">Aluminum and magnesium based alloys are being used for reducing the weight of automobiles. For structural applications they must have adequate stress corrosion resistance and yet, under some circumstances, stress corrosion cracking can occur in both alloy systems. Precipitation of the Mg rich Beta-phase (<span class="hlt">Al</span>3Mg2) at grain boundaries of <span class="hlt">Al</span>-Mg alloys and the Beta-phase (Mg17<span class="hlt">Al</span>12) at grain boundaries of the Mg-<span class="hlt">Al</span> alloys are critical factors in their stress corrosion performance. In Mg-<span class="hlt">Al</span>, the Beta-phase is cathodic to the matrix while in the <span class="hlt">Al</span>-Mg case, the Beta-phase is anodic to the matrix. These phases produce localized galvanic induced-corrosion that leads to intergranular stress corrosion cracking and cracking growth rates of 5 and 103 times faster than the solution treated condition, for <span class="hlt">Al</span>-Mg and Mg-<span class="hlt">Al</span>, respectively.</p> <div class="credits"> <p class="dwt_author">Jones, Russell H.; Vetrano, John S.; Windisch, Charles F.</p> <p class="dwt_publisher"></p> <p class="publishDate">2004-12-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">132</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/21852572"> <span id="translatedtitle">Energetics of <span class="hlt">Al</span>?? Keggin cluster compounds.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">The ?-<span class="hlt">Al</span>(13) Keggin aluminum hydroxide clusters are essential models in establishing molecular pathways for geochemical reactions. Enthalpies of formation are reported for two salts of aluminum centered ?-Keggin clusters, <span class="hlt">Al</span>(13) selenate, (Na(<span class="hlt">Al</span>O(4))<span class="hlt">Al</span>(12)(OH)(24)(SeO(4))(4)•12H(2)O) and <span class="hlt">Al</span>(13) sulfate, (Na<span class="hlt">Al</span>O(4)<span class="hlt">Al</span>(12)(OH)(24)(SO(4))(4)•12H(2)O). The measured enthalpies of solution, ?H(sol), at 28?°C in 5 N HCl for the ?-<span class="hlt">Al</span>(13) selenate and sulfate are -924.57 (± 3.83) and -944.30 ( ± 5.66) kJ·mol(-1), respectively. The enthalpies of formation from the elements, ?H(f,el), for <span class="hlt">Al</span>(13) selenate and sulfate are -19,656.35 ( ± 67.30) kJ·mol(-1), and -20,892.39 ( ± 70.01) kJ·mol(-1), respectively. In addition, ?H(f,el) for sodium selenate decahydrate was calculated using data from high temperature oxide melt solution calorimetry measurements: -4,006.39 ( ± 11.91) kJ·mol(-1). The formation of both ?-<span class="hlt">Al</span>(13) Keggin cluster compounds is exothermic from oxide-based components but energetically unfavorable with respect to a gibbsite-based assemblage. To understand the relative affinity of the ?-Keggin clusters for selenate and sulfate, the enthalpy associated with two S-Se exchange reactions was calculated. In the solid state, selenium is favored in the <span class="hlt">Al</span>(13) compound relative to the binary chalcogenate, while in 5 N HCl, sulfur is energetically favored in the cluster compound compared to the aqueous solution. This contribution represents the first thermodynamic study of ?-<span class="hlt">Al</span>(13) cluster compounds and establishes a method for other such molecules, including the substituted versions that have been created for kinetic studies. Underscoring the importance of ?-<span class="hlt">Al</span>(13) clusters in natural and anthropogenic systems, these data provide conclusive thermodynamic evidence that the <span class="hlt">Al</span>(13) Keggin cluster is a crucial intermediate species in the formation pathway from aqueous aluminum monomers to aluminum hydroxide precipitates. PMID:21852572</p> <div class="credits"> <p class="dwt_author">Armstrong, Christopher R; Casey, William H; Navrotsky, Alexandra</p> <p class="dwt_publisher"></p> <p class="publishDate">2011-09-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">133</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/25155020"> <span id="translatedtitle">Peripheral nerve ultrasound in <span class="hlt">ALS</span> phenotypes.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">Introduction. We sought to determine the cross sectional area (CSA) of peripheral nerves in patients with distinct subtypes of amyotrophic lateral sclerosis (<span class="hlt">ALS</span>). Methods. Ulnar and median nerve ultrasound was performed in 78 <span class="hlt">ALS</span> patients [classic, n=21, upper motor neuron dominant (UMND), n=14, lower motor neuron dominant (LMND), n=20, bulbar, n=15, primary lateral sclerosis (PLS) n=8] and 18 matched healthy controls. Results. Compared to controls <span class="hlt">ALS</span> patients had significant, distally pronounced reductions of ulnar CSA (forearm/wrist level) across all disease groups except for PLS. Median nerve CSA (forearm/wrist level) did not differ between controls and <span class="hlt">ALS</span>. Conclusion. Ulnar nerve ultrasound in <span class="hlt">ALS</span> subgroups revealed significant differences in distal CSA values, which suggests it has value as a marker of LMN involvement. Its potential was particularly evident in UMND and PLS groups, which can be hard to separate clinically, yet their accurate separation has important prognostic implications. © 2014 Wiley Periodicals, Inc. PMID:25155020</p> <div class="credits"> <p class="dwt_author">Schreiber, Stefanie; Abdulla, Susanne; Debska-Vielhaber, Grazyna; Machts, Judith; Dannhardt-Stieger, Verena; Feistner, Helmut; Oldag, Andreas; Goertler, Michael; Petri, Susanne; Kollewe, Katja; Kropf, Siegfried; Schreiber, Frank; Heinze, Hans-Jochen; Dengler, Reinhard; Nestor, Peter J; Vielhaber, Stefan</p> <p class="dwt_publisher"></p> <p class="publishDate">2014-08-25</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">134</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=19840053031&hterms=live+old&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D20%26Ntt%3Dlive%2Bold"> <span id="translatedtitle"><span class="hlt">Al</span>-26 in the interstellar medium</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p class="result-summary">The amount of dispersed interstellar <span class="hlt">Al</span>-26 detected by the HEAO 3 gamma-ray spectrometer cannot have been synthesized by supernova explosions if current calculations of the production ratio p(26)/p(27) approximately equal to 0.001 are correct. Simple models of chemical evolution of the Galaxy are presented to explain this point. The observed <span class="hlt">Al</span>-26 is more likely due to about 100 million dispersed novae, or to a single old (10,000-1,000,000 yr) supernova remnant that today surrounds the solar system. If the <span class="hlt">Al</span>-26 is dispersed, the high interstellar ratio today <span class="hlt">Al</span>-26/<span class="hlt">Al</span>-27 about equal to 0.00002 calls into question the requirement that a supernova trigger for formation of the solar system was the cause of a concentration 3-times larger. Also discussed is p-process production in novae with application to the question of live Sm-146 in the solar system.</p> <div class="credits"> <p class="dwt_author">Clayton, D. D.</p> <p class="dwt_publisher"></p> <p class="publishDate">1984-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">135</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=19940007975&hterms=Ni3Al&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D20%26Ntt%3DNi3Al"> <span id="translatedtitle">Ni<span class="hlt">Al</span> alloys for structural uses</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p class="result-summary">Alloys based on the intermetallic compound Ni<span class="hlt">Al</span> are of technological interest as high temperature structural alloys. These alloys possess a relatively low density, high melting temperature, good thermal conductivity, and (usually) good oxidation resistance. However, Ni<span class="hlt">Al</span> and Ni<span class="hlt">Al</span>-base alloys suffer from poor fracture resistance at low temperatures as well as inadequate creep strength at elevated temperatures. This research program explored macroalloying additions to Ni<span class="hlt">Al</span>-base alloys in order to identify possible alloying and processing routes which promote both low temperature fracture toughness and high temperature strength. Initial results from the study examined the additions of Fe, Co, and Hf on the microstructure, deformation, and fracture resistance of Ni<span class="hlt">Al</span>-based alloys. Of significance were the observations that the presence of the gamma-prime phase, based on Ni3<span class="hlt">Al</span>, could enhance the fracture resistance if the gamma-prime were present as a continuous grain boundary film or 'necklace'; and the Ni-35<span class="hlt">Al</span>-20Fe alloy was ductile in ribbon form despite a microstructure consisting solely of the B2 beta phase based on Ni<span class="hlt">Al</span>. The ductility inherent in the Ni-35<span class="hlt">Al</span>-20Fe alloy was explored further in subsequent studies. Those results confirm the presence of ductility in the Ni-35<span class="hlt">Al</span>-20Fe alloy after rapid cooling from 750 - 1000 C. However exposure at 550 C caused embrittlement; this was associated with an age-hardening reaction caused by the formation of Fe-rich precipitates. In contrast, to the Ni-35<span class="hlt">Al</span>-20Fe alloy, exploratory research indicated that compositions in the range of Ni-35<span class="hlt">Al</span>-12Fe retain the ordered B2 structure of Ni<span class="hlt">Al</span>, are ductile, and do not age-harden or embrittle after thermal exposure. Thus, our recent efforts have focused on the behavior of the Ni-35<span class="hlt">Al</span>-12Fe alloy. A second parallel effort initiated in this program was to use an alternate processing technique, mechanical alloying, to improve the properties of Ni<span class="hlt">Al</span>-alloys. Mechanical alloying in the conventional sense requires ductile powder particles which, through a cold welding and fracture process, can be dispersion strengthened by submicron-sized oxide particles. Using both the Ni-35<span class="hlt">Al</span>-Fe alloys to contain approx. 1 v/o Y2O3. Preliminary results indicate that mechanically alloyed and extruded Ni<span class="hlt">Al</span>-Fe + Y2O3 alloys when heat treated to a grain-coarsened condition, exhibit improved creep resistance at 1000 C when compared to Ni<span class="hlt">Al</span>; oxidation resistance comparable to Ni<span class="hlt">Al</span>; and fracture toughness values a factor of three better than Ni<span class="hlt">Al</span>. As a result of the research initiated on this NASA program, a subsequent project with support from Inco Alloys International is underway.</p> <div class="credits"> <p class="dwt_author">Koss, D. A.</p> <p class="dwt_publisher"></p> <p class="publishDate">1991-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">136</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/23890868"> <span id="translatedtitle"><span class="hlt">Al</span>-Akhawayni's description of pulmonary circulation.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">Since antiquity, heart function and the mechanism of blood circulation within the human body have been the focus of attention of scientists from different parts of the world. Over the passage of time, the theories and works of these scientists have resulted in the achievement of today's knowledge of circulation. The medieval Persian scholar, <span class="hlt">Al</span>-Akhawayni Bukhari (?-983AD), is among the physicians who investigated both the anatomy and the physiology of the human body. <span class="hlt">Al</span>-Akhawayni describes the mechanism of pulmonary circulation in his only extant book, "Hidayat <span class="hlt">al</span>-Muta`llemin fi <span class="hlt">al</span>-Tibb" (A Scholar's Guide to Medicine) with which he made a contribution to the development of knowledge regarding this mechanism in the medicine of the Islamic world. In this paper, <span class="hlt">Al</span>-Akhawayni's viewpoints on anatomy and the function of the heart, its related vessels, and also pulmonary circulation will be briefly discussed. PMID:23890868</p> <div class="credits"> <p class="dwt_author">Yarmohammadi, Hassan; Dalfardi, Behnam; Rezaian, Jafar; Ghanizadeh, Ahmad</p> <p class="dwt_publisher"></p> <p class="publishDate">2013-10-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">137</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2005GeCoA..69.5263K"> <span id="translatedtitle">Assessment of isotopically exchangeable <span class="hlt">Al</span> in soil materials using 26<span class="hlt">Al</span> tracer</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">The solubility of aluminium (<span class="hlt">Al</span>) in many acidic soils is controlled by complexation reactions with soil organic matter. In such soils, <span class="hlt">Al</span> solubility is theoretically a function of the pool size of "active" <span class="hlt">Al</span>, i.e., the total amount of <span class="hlt">Al</span> that equilibrates with the soil solution within a defined period of time. To date, no reliable measurements of "active" <span class="hlt">Al</span> in soil materials exist. In this study, we determined the isotopically exchangeable pool of <span class="hlt">Al</span> ( EAl) as an operationally defined assessment of "active" <span class="hlt">Al</span> in acidic mineral soils. The suitability of CuCl 2 and pyrophosphate (Na 4P 2O 7) as extractants for "active" <span class="hlt">Al</span> was also evaluated. Eleven samples, mostly from spodic B horizons, were spiked with carrier-free 26<span class="hlt">Al</span> and equilibrated for different time periods (1-756 h). The size of the <span class="hlt">Al</span> pool with which the 26<span class="hlt">Al</span> tracer exchanged increased with time during the whole experimental period. Thus, contact time between solid and solution phases needs to be defined when assessing the "active" <span class="hlt">Al</span> pool. Values of EAl obtained after 1 to 5 d of equilibration were equal to the amount of CuCl 2 extractable <span class="hlt">Al</span>, but considerably smaller than the Na 4P 2O 7-extractable pool. Equilibration times greater than 5 d resulted in CuCl 2 extractable <span class="hlt">Al</span> concentrations that under-estimated the "active" <span class="hlt">Al</span> pool. Three of the investigated samples were rich in imogolite-type materials (ITM). In these samples, 30-50 % of the added 26<span class="hlt">Al</span> rapidly became associated with soil constituents in forms that could not be extracted by Na 4P 2O 7, indicating that a part of ITM may be in a dynamic state.</p> <div class="credits"> <p class="dwt_author">Kleja, D. Berggren; Standring, W.; Oughton, D. H.; Gustafsson, J.-P.; Fifield, K.; Fraser, A. R.</p> <p class="dwt_publisher"></p> <p class="publishDate">2005-11-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">138</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/60753372"> <span id="translatedtitle">A new discontinuously reinforced aluminum MMC: <span class="hlt">Al+Al</span>Bâ flakes</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Development of a novel metal matrix composite based on the <span class="hlt">Al</span>-B alloy system has been undertaken. Preparation of this discontinuously reinforced material is based on the precipitation of high aspect ratio <span class="hlt">Al</span>Bâ from an <span class="hlt">Al</span>-B alloy. This paper describes a number of efforts forced on preparing high volume fractions (> 30 v%) of <span class="hlt">Al</span>Bâ in aluminum. New insights into the</p> <div class="credits"> <p class="dwt_author">AARON C. HALL; J. ECONOMY</p> <p class="dwt_publisher"></p> <p class="publishDate">2000-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">139</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/18308614"> <span id="translatedtitle">27<span class="hlt">Al</span> NMR studies of NpPd 5<span class="hlt">Al</span> 2</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">We present 27<span class="hlt">Al</span> NMR studies for a single crystal of the Np-based superconductor NpPd5<span class="hlt">Al</span>2(Tc=4.9K). We have observed a five-line 27<span class="hlt">Al</span> NMR spectrum with a center line and four satellite lines separated by first-order nuclear quadrupole splittings. The Knight shift clearly drops below Tc. The temperature dependence of the 27<span class="hlt">Al</span> nuclear spin-lattice relaxation rate shows no coherence peak below Tc, indicating</p> <div class="credits"> <p class="dwt_author">H. Chudo; H. Sakai; Y. Tokunaga; S. Kambe; D. Aoki; Y. Homma; Y. Shiokawa; Y. Haga; S. Ikeda; T. D. Matsuda; Y. ?nuki; H. Yasuoka</p> <p class="dwt_publisher"></p> <p class="publishDate">2009-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">140</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/22929995"> <span id="translatedtitle">Electrochemical analysis of zincate treatments for <span class="hlt">Al</span> and <span class="hlt">Al</span> alloy films</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Electrochemical behavior of <span class="hlt">Al</span> and <span class="hlt">Al</span> alloy films in zincate solution was investigated to elucidate the effect of the zincate pretreatment for electroless NiP deposition, which is used for under bump metallization for LSI interconnects. The immersion potential for <span class="hlt">Al</span>Cu and <span class="hlt">Al</span>SiCu, immediately reached to constant, which was almost equal potential to zinc reference electrode. The corrosion current for the</p> <div class="credits"> <p class="dwt_author">Mikiko Saito; Takeyuki Maegawa; Takayuki Homma</p> <p class="dwt_publisher"></p> <p class="publishDate">2005-01-01</p> </div> </div> </div> </div> <div id="filter_results_form" class="filter_results_form floatContainer" style="visibility: visible;"> <div style="width:100%" id="PaginatedNavigation" class="paginatedNavigationElement"> <a id="FirstPageLink" onclick='return showDiv("page_1");' href="#" title="First Page"> <img id="FirstPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.first.18x20.png" alt="First Page" /></a> <a id="PreviousPageLink" onclick='return showDiv("page_6");' href="#" title="Previous Page"> <img id="PreviousPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.previous.18x20.png" alt="Previous Page" /></a> <span id="PageLinks" class="pageLinks"> <span> <a onClick='return showDiv("page_1");' href="#">1</a> <a onClick='return 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<img id="NextPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.next.18x20.png" alt="Next Page" /></a> <a id="LastPageLink" onclick='return showDiv("page_25.0");' href="#" title="Last Page"> <img id="LastPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.last.18x20.png" alt="Last Page" /></a> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">141</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/19441466"> <span id="translatedtitle">Thermal stability of Ti<span class="hlt">Al</span>N and nanocomposite Ti<span class="hlt">Al</span>SiN thin films.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">Ti<span class="hlt">Al</span>N and Ti<span class="hlt">Al</span>SiN coatings were synthesized by a cathodic arc deposition process. Titanium, Ti50<span class="hlt">Al</span>50 alloy and <span class="hlt">Al</span>Si (88 at.% of <span class="hlt">Al</span> and 12 at.% of Si) alloy targets were adopted as the cathode materials. X-ray diffraction analyses revealed that Ti0.5<span class="hlt">Al</span>0.5N and Ti49<span class="hlt">Al</span>0.44Si0.07N possess a B1-NaCl crystal structure. The lattice constants of the Ti0.5<span class="hlt">Al</span>0.5N and Ti0.49<span class="hlt">Al</span>0.44Si0.07N calculated from XRD pattern were 0.418 nm and 0.422 nm, respectively. For the high temperature oxidation test, the coated samples were annealed at 900 degrees C in air atmosphere for 2 hours. In this study, the deposited Ti0.5<span class="hlt">Al</span>0.5N had completely transformed to TiO2 and <span class="hlt">Al</span>2O3, and Ti0.49<span class="hlt">Al</span>0.44Si0.07N remained the as-deposited structure after oxidation treatment. It indicated that Ti0.49<span class="hlt">Al</span>0.44Si0.07N possesses superior oxidation resistance than Ti0.5<span class="hlt">Al</span>0.5N, due to the amorphous SiNx phase existed in the nanocomposite structure. The different oxidation mechanisms of Ti50<span class="hlt">Al</span>50N and Ti0.49<span class="hlt">Al</span>0.44Si0.07N at high temperature of 900 degrees C are developed in this study. PMID:19441466</p> <div class="credits"> <p class="dwt_author">Yang, Sheng-Min; Chang, Yin-Yu; Lin, Dong-Yih; Wang, Da-Yung; Wu, Weite</p> <p class="dwt_publisher"></p> <p class="publishDate">2009-02-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">142</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=19980019510&hterms=blast+building&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D90%26Ntt%3Dblast%2Bbuilding"> <span id="translatedtitle">Corrosion Studies of 2195 <span class="hlt">Al</span>-Li Alloy and 2219 <span class="hlt">Al</span> Alloy with Differing Surface Treatments</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p class="result-summary">Corrosion studies of 2195 <span class="hlt">Al</span>-Li and 2219 <span class="hlt">Al</span> alloys have been conducted using the scanning reference electrode technique (SRET) and the polarization resistance (PR) technique. The SRET was used to study corrosion mechanisms, while corrosion rate measurements were studied with the PR technique. Plates of <span class="hlt">Al</span>203 blasted, soda blasted and conversion coated 2219 <span class="hlt">Al</span> were coated with Deft primer and the corrosion rates studied with the EIS technique. Results from all of these studies are presented.</p> <div class="credits"> <p class="dwt_author">Danford, M. D.; Mendrek, M. J.</p> <p class="dwt_publisher"></p> <p class="publishDate">1998-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">143</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/42362138"> <span id="translatedtitle">An investigation of the ordering of the phases Co<span class="hlt">Al</span> and Ni<span class="hlt">Al</span></span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">An investigation of the variation of lattice parameter with composition over a small range of composition for the phases Co<span class="hlt">Al</span> and Ni<span class="hlt">Al</span> has confirmed that a peak value occurs and has enabled the corresponding phase-composition to be determined. For Co<span class="hlt">Al</span> this is close to the ideal 50—50% (atomic) composition, but in the case of Ni<span class="hlt">Al</span> the nickel sites are found</p> <div class="credits"> <p class="dwt_author">M. J. Cooper</p> <p class="dwt_publisher"></p> <p class="publishDate">1963-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">144</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.alsa.org/als-care/resources/publications-videos/factsheets/patient-bill-of-rights.html"> <span id="translatedtitle"><span class="hlt">ALS</span> Association's Patient Bill of Rights for People Living with <span class="hlt">ALS</span></span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://medlineplus.gov/">MedlinePLUS</a></p> <p class="result-summary">... The <span class="hlt">ALS</span> Association's Patient Bill of Rights creates a vision of what the <span class="hlt">ALS</span> community is striving to achieve for each person living with <span class="hlt">ALS</span>. > > View the full Patient Bill of Rights Site Map | Press Room | FAQ | Privacy Policy | Link Policy | RSS | Contact Us ...</p> <div class="credits"> <p class="dwt_author"></p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">145</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2005PhRvB..72k5423F"> <span id="translatedtitle">Ab initio study of Ag/ <span class="hlt">Al</span>2 O3 and Au/ <span class="hlt">Al</span>2 O3 interfaces</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">Structural stability, adhesion, and chemical bonding of the Ag(111)/?-<span class="hlt">Al</span>2O3 (0001) and Au(111)/?-<span class="hlt">Al</span>2O3 (0001) interfaces are investigated by an ab initio approach based on density functional theory. The interfaces are shown to have different stable structures of <span class="hlt">Al</span>2 , <span class="hlt">Al</span>, or O termination depending on the chemical potential of aluminum or oxygen atom. A link to thermodynamic factors, i.e., the partial pressure of oxygen gas or the activity of aluminum, is established based on the ab initio thermodynamics developed recently. For condition applicable to sessile drop experiments, the O-terminated interface could exist for the Ag/<span class="hlt">Al</span>2O3 system but be hard to observe for the Au/<span class="hlt">Al</span>2O3 interfaces, consistent with the known experiments. The <span class="hlt">Al</span>2 termination is possible for the Au/<span class="hlt">Al</span>2O3 interface at relatively low O2 pressure or high <span class="hlt">Al</span> activity but may be hard to form for the Ag/<span class="hlt">Al</span>2O3 interface. Works of adhesion Wad of the stoichiometric interfaces are calculated to be 0.33J/m2 in generalized gradient approximation (GGA) and 0.59J/m2 in local density approximation (LDA) for the Ag/<span class="hlt">Al</span>2O3 interface, 0.29J/m2 in GGA and 0.58J/m2 in LDA for the Au/<span class="hlt">Al</span>2O3 interface, in reasonable agreement with measured data.</p> <div class="credits"> <p class="dwt_author">Feng, Jiwei; Zhang, Wenqing; Jiang, Wan</p> <p class="dwt_publisher"></p> <p class="publishDate">2005-09-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">146</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/40939202"> <span id="translatedtitle">Influence of <span class="hlt">Al</span> content on cast microstructures of Ti–<span class="hlt">Al</span> intermetallic compounds</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Cast microstructures of Ti–(35–58) at% <span class="hlt">Al</span> alloys have been studied using optical microscope, scanning electron microscope and transmission electron microscope. The critical compositions of transition from primary ? to ? phase and from ? to ? phase were determined to be about 49.5 at% <span class="hlt">Al</span> and 55.5 at% <span class="hlt">Al</span> respectively. The peritectic compositions of ?p and ?p were measured to</p> <div class="credits"> <p class="dwt_author">J. Y. Jung; J. K. Park; C. H. Chun</p> <p class="dwt_publisher"></p> <p class="publishDate">1999-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">147</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/26924857"> <span id="translatedtitle">EFFECT OF <span class="hlt">AL</span> PARTICLE SIZE ON THE THERMAL DEGRADATION OF <span class="hlt">AL</span>\\/TEFLON MIXTURES</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Reactive mixtures of aluminum (<span class="hlt">Al</span>) and polytetrafluoroethylene (PTFE or Teflon) have applications in propellants, explosives, and pyrotechnics. This study examines the thermal degradation behavior of Teflon and nanometer scale <span class="hlt">Al</span> particles compared with micron-scale <span class="hlt">Al</span> particles. Differential scanning calorimetry and thermo-gravimetric analyses were performed in an argon environment on both nanometer and micron scale particulate mixtures revealing lower ignition temperatures</p> <div class="credits"> <p class="dwt_author">DUSTIN T. OSBORNE; MICHELLE L. PANTOYA</p> <p class="dwt_publisher"></p> <p class="publishDate">2007-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">148</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://policy.rutgers.edu/vtc/reports/REPORTS/VTC_Annual_Report-2010.pdf"> <span id="translatedtitle">Annu<span class="hlt">Al</span> report of the <span class="hlt">Al</span>An M. Voorhees</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">, Sally Scott, Sandra Gligorijevic, EdwinVerin, Natalia Bratslavsky, kaczor58) istockphoto #12;Alan MAnnu<span class="hlt">Al</span> report of the <span class="hlt">Al</span>An M. Voorhees TrAnsporTATion CenTer 2 0 1 0 <span class="hlt">Al</span>An M. Voorhees Tr Jersey 33 livingston Avenue new Brunswick, nJ 08901 policy.rutgers.edu/vtc #12;Contact: Alan M. Voorhees</p> <div class="credits"> <p class="dwt_author">Delgado, Mauricio</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">149</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://cacs.usc.edu/papers/Seymour-NiAlindentation-APL14red.pdf"> <span id="translatedtitle">Nanoindentation of Ni<span class="hlt">Al</span> and Ni3<span class="hlt">Al</span> crystals on (100), (110), and (111) surfaces: A molecular dynamics study</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">Nanoindentation of Ni<span class="hlt">Al</span> and Ni3<span class="hlt">Al</span> crystals on (100), (110), and (111) surfaces: A molecular performed to study the nanoindentation of Ni<span class="hlt">Al</span> and Ni3<span class="hlt">Al</span> crystals on three surfaces: (100), (110), and (111 on the indented crystallographic plane: the (100) surface is the softest for Ni<span class="hlt">Al</span> and the hardest for Ni3<span class="hlt">Al</span>. We</p> <div class="credits"> <p class="dwt_author">Southern California, University of</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">150</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/servlets/purl/756425"> <span id="translatedtitle">A new discontinuously reinforced aluminum MMC: <span class="hlt">Al+Al</span>B{sub 2} flakes</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">Development of a novel metal matrix composite based on the <span class="hlt">Al</span>-B alloy system has been undertaken. Preparation of this discontinuously reinforced material is based on the precipitation of high aspect ratio <span class="hlt">Al</span>B{sub 2} from an <span class="hlt">Al</span>-B alloy. This paper describes a number of efforts forced on preparing high volume fractions (> 30 v%) of <span class="hlt">Al</span>B{sub 2} in aluminum. New insights into the behavior of the <span class="hlt">Al</span>-B alloys system allowed this effort to be successful.</p> <div class="credits"> <p class="dwt_author">HALL,AARON C.; ECONOMY,J.</p> <p class="dwt_publisher"></p> <p class="publishDate">2000-06-08</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">151</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/1540232"> <span id="translatedtitle">High <span class="hlt">Al</span>-content <span class="hlt">Al</span>GaN\\/GaN MODFETs for ultrahigh performance</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">The use of an <span class="hlt">Al</span>GaN layer with high <span class="hlt">Al</span> mole-fraction is proposed to increase the equivalent figures of merit of the <span class="hlt">Al</span>GaN\\/GaN MODFET structure. It is shown that the room temperature mobility has little degradation with increasing <span class="hlt">Al</span> mole-fraction up to 50%. 0.7-?m gate-length <span class="hlt">Al</span>0.5Ga0.5N\\/GaN MODFETs by optical lithography exhibit a current density of 1 A\\/mm and three-terminal breakdown voltages</p> <div class="credits"> <p class="dwt_author">Y.-F. Wu; B. P. Keller; P. Fini; S. Keller; T. J. Jenkins; L. T. Kehias; S. P. Denbaars; U. K. Mishra</p> <p class="dwt_publisher"></p> <p class="publishDate">1998-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">152</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/40939579"> <span id="translatedtitle">Single-phase interdiffusion in the B2 type intermetallic compounds Ni<span class="hlt">Al</span>, Co<span class="hlt">Al</span> and Fe<span class="hlt">Al</span></span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Interdiffusion coefficients, D, in the B2 type Ni<span class="hlt">Al</span>, Co<span class="hlt">Al</span> and Fe<span class="hlt">Al</span> phases have been determined by single phase diffusion couples over a wide temperature range from 1073 to 1773 K. The value of D in the Ni<span class="hlt">Al</span> and Co<span class="hlt">Al</span> phases shows a minimum at about 47 at.% <span class="hlt">Al</span> deviating slightly from the stoichiometric composition, while the value of D in</p> <div class="credits"> <p class="dwt_author">Ryusuke Nakamura; Koichi Takasawa; Yoshihiro Yamazaki; Yoshiaki Iijima</p> <p class="dwt_publisher"></p> <p class="publishDate">2002-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">153</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2014ApSS..317..140C"> <span id="translatedtitle">Wetting of polycrystalline SiC by molten <span class="hlt">Al</span> and <span class="hlt">Al</span>-Si alloys</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">The wetting of ?-SiC by molten <span class="hlt">Al</span> and <span class="hlt">Al</span>-Si alloys was investigated using a dispensed sessile drop method in a high vacuum. In the <span class="hlt">Al</span>-SiC system, representative wetting stages were identified. The liquid spreading was initially controlled by the deoxidation of the SiC surface and then by the formation of <span class="hlt">Al</span>4C3 at the interface. The intrinsic contact angle for molten <span class="hlt">Al</span> on the polycrystalline ?-SiC surface was suggested to be lower than 90? provided that the oxide films covering the <span class="hlt">Al</span> and SiC surfaces were removed, i.e., the system is partial wetting in nature. An increase in the Si concentration in liquid <span class="hlt">Al</span> weakened the interfacial reaction but improved the final wettability. The role of the Si addition on the wetting was presumably attributed to its segregation at the interface and the formation of strong chemical bonds with the SiC surface.</p> <div class="credits"> <p class="dwt_author">Cong, Xiao-Shuang; Shen, Ping; Wang, Yi; Jiang, Qichuan</p> <p class="dwt_publisher"></p> <p class="publishDate">2014-10-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">154</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=19920074405&hterms=Al2O3&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D40%26Ntt%3DAl2O3"> <span id="translatedtitle">Oxidation of <span class="hlt">Al</span>2O3 continuous fiber-reinforced/Ni<span class="hlt">Al</span> composites</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p class="result-summary">The 1200 C and 1300 C isothermal and cyclic oxidation behavior of <span class="hlt">Al</span>2O3 continuous fiber-reinforced/Ni<span class="hlt">Al</span> composites were studied. Oxidation resulted in formation of <span class="hlt">Al</span>2O3 external scales in a similar manner as scales formed on monolithic Ni<span class="hlt">Al</span>. The isothermal oxidation of an <span class="hlt">Al</span>2O3/Ni<span class="hlt">Al</span> composite resulted in oxidation of the matrix along the fiber/matrix interface near the fiber ends. This oxide acted as a wedge between the fiber and the matrix, and, under cyclic oxidation conditions, led to further oxidation along the fiber lengths and eventual cracking of the composite. The oxidation behavior of composites in which the <span class="hlt">Al</span>2O3 fibers were sputter coated with nickel prior to processing was much more severe. This was attributed to open channels around the fibers which formed during processing, most likely as a result of the diffusion of the nickel coating into the matrix.</p> <div class="credits"> <p class="dwt_author">Doychak, J.; Nesbitt, J. A.; Noebe, R. D.; Bowman, R. R.</p> <p class="dwt_publisher"></p> <p class="publishDate">1992-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">155</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/biblio/22116017"> <span id="translatedtitle">Thermal diffusion in Ni/<span class="hlt">Al</span> multilayer</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">Two Ni/<span class="hlt">Al</span> multilayers deposited by ion beam sputtering of nominal design [Ni(200A)/<span class="hlt">Al</span>(100A)] Multiplication-Sign 5 and [Ni(50A)/<span class="hlt">Al</span>(227A)] Multiplication-Sign 5 on Si substrates were annealed at 200 Degree-Sign C. As-deposited and annealed samples were characterized by x-ray diffraction (XRD) and x-ray reflectometry (XRR). The effort was to study the path of alloying in the above two multilayers of same elements but of opposite stoichiometric ratio. We find distinct differences in alloying of these samples.</p> <div class="credits"> <p class="dwt_author">Swain, M.; Bhattacharya, D.; Singh, S.; Basu, S. [Solid State Physics Division, Bhabha Atomic Research Center, Mumbai 400085 (India); Gupta, M. [UGC-DAE-Consortium for Scientific Research, University Campus, Khandwa Road, Indore 452017 (India)</p> <p class="dwt_publisher"></p> <p class="publishDate">2013-02-05</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">156</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/servlets/purl/10191071"> <span id="translatedtitle">Ni{sub 3}<span class="hlt">Al</span> aluminide alloys</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">This paper provides a brief review of the recent progress in research and development of Ni{sub 3}<span class="hlt">Al</span> and its alloys. Emphasis has been placed on understanding low ductility and brittle fracture of Ni{sub 3}<span class="hlt">Al</span> alloys at ambient and elevated temperatures. Recent studies have resulted in identifying both intrinsic and extrinsic factors governing the fracture behavior of Ni{sub 3}<span class="hlt">Al</span> alloys. Parallel efforts on alloy design using physical metallurgy principles have led to properties for structural use. Industrial interest in these alloys is high, and examples of industrial involvement in processing and utilization of these alloys are briefly mentioned.</p> <div class="credits"> <p class="dwt_author">Liu, C.T.</p> <p class="dwt_publisher"></p> <p class="publishDate">1993-10-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">157</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/servlets/purl/971365"> <span id="translatedtitle">Interdiffusion in Diffusion Couples: U-Mo v. <span class="hlt">Al</span> and <span class="hlt">Al</span>-Si</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">Interdiffusion and microstructural development in the U-Mo-<span class="hlt">Al</span> system was examined using solid-tosolid diffusion couples consisting of U-7wt.%Mo, U-10wt.%Mo and U-12wt.%Mo vs. pure <span class="hlt">Al</span>, annealed at 600°C for 24 hours. The influence of Si alloying addition (up to 5 wt.%) in <span class="hlt">Al</span> on the interdiffusion microstructural development was also examined using solid-to-solid diffusion couples consisting of U-7wt.%Mo, U-10wt.%Mo and U-12wt.%Mo vs. pure <span class="hlt">Al</span>, <span class="hlt">Al</span>-2wt.%Si, and <span class="hlt">Al</span>-5wt.%Si annealed at 550°C up to 20 hours. Scanning electron microscopy (SEM), transmission electron microscopy (TEM) and electron probe microanalysis (EPMA) were employed to examine the development of a very fine multiphase intermetallic layer. In ternary U-Mo-<span class="hlt">Al</span> diffusion couples annealed at 600°C for 24 hours, interdiffusion microstructure varied of finely dispersed UAl3, UAl4, U6Mo4<span class="hlt">Al</span>43, and UMo2<span class="hlt">Al</span>20 phases while the average composition throughout the interdiffusion zone remained constant at approximately 80 at.% <span class="hlt">Al</span>. Interdiffusion microstructure observed by SEM/TEM analyses and diffusion paths drawn from concentration profiles determined by EPMA appear to deviate from the assumption of “local thermodynamic equilibrium,” and suggest that interdiffusion occurs via supersaturated UAl4 followed by equilibrium transformation into UAl3, U6Mo4<span class="hlt">Al</span>43, UAl4 and UMo2<span class="hlt">Al</span>20 phases. Similar observation was made for U-Mo vs. <span class="hlt">Al</span> diffusion couples annealed at 550°C. The addition of Si (up to 5 wt.%) in <span class="hlt">Al</span> significantly reduced the thickness of the intermetallic layer by changing the constituent phases of the interdiffusion zone developed in U-Mo vs. <span class="hlt">Al</span>-Si diffusion couples. Specifically, the formation of (U,Mo)(<span class="hlt">Al</span>,Si)3 with relatively large solubility for Mo and Si, along with UMo2<span class="hlt">Al</span>20 phases was observed along with disappearance of U6Mo4<span class="hlt">Al</span>43 and UAl4 phases. Simplified understanding based on U-<span class="hlt">Al</span>, U-Si, and Mo-Si binary phase diagrams is discussed in the light of the beneficial effect of Si alloying addition.</p> <div class="credits"> <p class="dwt_author">D. D. Keiser, Jr.; E. Perez; B. Yao; Y. H. Sohn</p> <p class="dwt_publisher"></p> <p class="publishDate">2009-11-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">158</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2012JAP...111f3708H"> <span id="translatedtitle">Electroforming and Ohmic contacts in <span class="hlt">Al-Al</span>2O3-Ag diodes</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">Electroforming of metal-insulator-metal (MIM) diodes is a non-destructive dielectric breakdown process that changes the diode from its initial high resistance state (HRS) to a low resistance state (LRS). After electroforming, resistance switching memories (RSMs) use voltages to switch from HRS to LRS and back. Many MIM combinations are proposed for use in RSMs. In many cases conduction in the LRS is nearly temperature independent at low temperatures; an Ohmic contact with a barrier to electron injection of ˜0 eV results from electroforming. Electroforming of <span class="hlt">Al-Al</span>2O3-Ag diodes with amorphous anodic <span class="hlt">Al</span>2O3 thicknesses between 12 and 41 nm has been studied. Two anodizing electrolytes have been used; 0.1 M ammonium pentaborate (bor-H2O) and a solution of 0.1 M of ammonium pentaborate per liter of ethylene glycol (bor-gly). Polarization of <span class="hlt">Al</span>2O3 and negative charge in <span class="hlt">Al</span>2O3 are much larger when <span class="hlt">Al</span>2O3 is formed in bor-H2O solution than when <span class="hlt">Al</span> is anodized in bor-gly solution. Electroforming of <span class="hlt">Al-Al</span>2O3-Ag diodes results in an Ohmic contact at the <span class="hlt">Al-Al</span>2O3 interface, voltage-controlled negative resistance (VCNR) in the current-voltage (I-V) characteristics, electroluminescence (EL), and electron emission into vacuum (EM) from filamentary conducting channels. Two distinct modes of electroforming occur for <span class="hlt">Al-Al</span>2O3-Ag diodes. ?-forming occurs for 2.5 V ? VS ? 5 V, where VS is the applied voltage. It is characterized by an abrupt current jump with the simultaneous appearance of EL and EM. ?-forming occurs for VS ? 7 V. I-V curves, EL, and EM develop gradually and are smaller than for ?-forming. Electroforming occurs more readily for diodes with <span class="hlt">Al</span>2O3 formed in bor-H2O that have greater defect densities. Fully developed I-V curves have similar VCNR, EL, and EM after ?-forming or ?-forming. A model is proposed in which excited states of F-centers, oxygen vacancies in amorphous anodic <span class="hlt">Al</span>2O3, form defect conduction bands. Electroforming that results in an Ohmic contact requires injection of positive charge at the <span class="hlt">Al-Al</span>2O3 interface. ?-forming is the result of ionization of F-center recombination centers with energies that are close to the <span class="hlt">Al</span> Fermi level. Hole injection by high-field ionization of valence band states of <span class="hlt">Al</span>2O3 causes ?-forming.</p> <div class="credits"> <p class="dwt_author">Hickmott, T. W.</p> <p class="dwt_publisher"></p> <p class="publishDate">2012-03-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">159</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=2650295"> <span id="translatedtitle">Substitutional alloy of Ce and <span class="hlt">Al</span></span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p class="result-summary">The formation of substitutional alloys has been restricted to elements with similar atomic radii and electronegativity. Using high-pressure at 298 K, we synthesized a face-centered cubic disordered alloy of highly dissimilar elements (large Ce and small <span class="hlt">Al</span> atoms) by compressing the Ce3<span class="hlt">Al</span> intermetallic compound >15 GPa or the Ce3<span class="hlt">Al</span> metallic glass >25 GPa. Synchrotron X-ray diffraction, Ce L3-edge absorption spectroscopy, and ab initio calculations revealed that the pressure-induced Kondo volume collapse and 4f electron delocalization of Ce reduced the differences between Ce and <span class="hlt">Al</span> and brought them within the Hume-Rothery (HR) limit for substitutional alloying. The alloy remained after complete release of pressure, which was also accompanied by the transformation of Ce back to its ambient 4f electron localized state and reversal of the Kondo volume collapse, resulting in a non-HR alloy at ambient conditions. PMID:19188608</p> <div class="credits"> <p class="dwt_author">Zeng, Qiao-Shi; Ding, Yang; Mao, Wendy L.; Luo, Wei; Blomqvist, Andreas; Ahuja, Rajeev; Yang, Wenge; Shu, Jinfu; Sinogeikin, Stas V.; Meng, Yue; Brewe, Dale L.; Jiang, Jian-Zhong; Mao, Ho-kwang</p> <p class="dwt_publisher"></p> <p class="publishDate">2009-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">160</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/servlets/purl/792926"> <span id="translatedtitle">12th Annual <span class="hlt">ALS</span> Users' Association Meeting</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">Science took the front seat as 219 Advanced Light Source (<span class="hlt">ALS</span>) users and staff gathered on Monday and Tuesday, October 18 and 19 for the twelfth annual users' meeting. The bulk of the meeting was dedicated to reports on science at the <span class="hlt">ALS</span>. Packed into two busy days were 31 invited oral presentations and 80 submitted poster presentations, as well as time to visit 24 vendor booths. The oral sessions were dedicated to environmental science, chemical dynamics, biosciences, magnetic materials, and atomic and molecular science. In addition, there was an <span class="hlt">ALS</span> highlights session that emphasized new results and a session comprising highlights from the young scientists who will carry the <span class="hlt">ALS</span> into the future.</p> <div class="credits"> <p class="dwt_author">Robinson, Arthur L.</p> <p class="dwt_publisher"></p> <p class="publishDate">1999-12-17</p> </div> </div> </div> </div> <div id="filter_results_form" class="filter_results_form floatContainer" style="visibility: visible;"> <div style="width:100%" id="PaginatedNavigation" class="paginatedNavigationElement"> <a id="FirstPageLink" onclick='return showDiv("page_1");' href="#" title="First Page"> <img id="FirstPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.first.18x20.png" alt="First Page" /></a> <a id="PreviousPageLink" onclick='return showDiv("page_7");' href="#" title="Previous Page"> <img id="PreviousPageLinkImage" class="Icon" 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showDiv("page_24");' href="#">24</a> <a onClick='return showDiv("page_25");' href="#">25</a> </span> </span> <a id="NextPageLink" onclick='return showDiv("page_10");' href="#" title="Next Page"> <img id="NextPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.next.18x20.png" alt="Next Page" /></a> <a id="LastPageLink" onclick='return showDiv("page_25.0");' href="#" title="Last Page"> <img id="LastPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.last.18x20.png" alt="Last Page" /></a> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">161</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://mda.org/publications/everyday-life-with-als"> <span id="translatedtitle">Everyday Life with <span class="hlt">ALS</span>: A Practical Guide</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://medlineplus.gov/">MedlinePLUS</a></p> <p class="result-summary">... a need for practical solutions, <span class="hlt">ALS</span> brings a host of emotional, family and financial concerns that are ... are nearly 200 MDA support groups across the country for people affected by neuromuscular diseases, their families ...</p> <div class="credits"> <p class="dwt_author"></p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">162</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/18625409"> <span id="translatedtitle">Glial cells in <span class="hlt">ALS</span>: the missing link?</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">Amyotrophic lateral sclerosis (<span class="hlt">ALS</span>) was initially known as Charcot's sclerosis, named after the French neurobiologist and physician Jean-Martin Charcot who first described this type of muscular atrophy in the early nineteenth century. In the United States, <span class="hlt">ALS</span> became widely known as Lou Gehrig's disease after the famous baseball player who succumbed to the disease in the late 1930s. Currently, <span class="hlt">ALS</span> is the most common motor neuron disease, with a worldwide incidence of 8 cases per 100,000 population per year. Familial forms constitute approximately 5% to 10% of all cases. Onset increases with age, with a peak in the seventh decade and a slight preponderance (relative risk, 1.3-1.5) among men compared with women. Rapid progression of motor neuron loss leads to death an average of 3 to 5 years after symptom onset. The cause of <span class="hlt">ALS</span> remains unknown and there is still no curative therapy. PMID:18625409</p> <div class="credits"> <p class="dwt_author">Raibon, Elsa; Todd, Lisa Marie; Möller, Thomas</p> <p class="dwt_publisher"></p> <p class="publishDate">2008-08-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">163</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3866720"> <span id="translatedtitle"><span class="hlt">ALS</span> and Oxidative Stress: The Neurovascular Scenario</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p class="result-summary">Oxidative stress and angiogenic factors have been placed as the prime focus of scientific investigations after an establishment of link between vascular endothelial growth factor promoter (VEGF), hypoxia, and amyotrophic lateral sclerosis (<span class="hlt">ALS</span>) pathogenesis. Deletion of the hypoxia-response element in the vascular endothelial growth factor promoter and mutant superoxide dismutase 1 (SOD1) which are characterised by atrophy and muscle weakness resulted in phenotype resembling human <span class="hlt">ALS</span> in mice. This results in lower motor neurodegeneration thus establishing an important link between motor neuron degeneration, vasculature, and angiogenic molecules. In this review, we have presented human, animal, and in vitro studies which suggest that molecules like VEGF have a therapeutic, diagnostic, and prognostic potential in <span class="hlt">ALS</span>. Involvement of vascular growth factors and hypoxia response elements also highlights the converging role of oxidative stress and neurovascular network for understanding and treatment of various neurodegenerative disorders like <span class="hlt">ALS</span>. PMID:24367722</p> <div class="credits"> <p class="dwt_author">Thakur, Keshav; Gupta, Pawan Kumar</p> <p class="dwt_publisher"></p> <p class="publishDate">2013-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">164</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/25080252"> <span id="translatedtitle">Structure of decagonal <span class="hlt">Al</span>-Ni-Rh.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">The crystal structure of the decagonal phase in the system <span class="hlt">Al</span>-Ni-Rh (d-<span class="hlt">Al</span>-Ni-Rh) was analyzed in the five-dimensional embedding approach based on single-crystal synchrotron X-ray diffraction data. The structure can be described as a quasiperiodic packing of partially overlapping decagonal and pentagonal columnar clusters with ??21?Å diameter and ??4?Å period along the tenfold axis. PMID:25080252</p> <div class="credits"> <p class="dwt_author">Logvinovich, Dmitry; Simonov, Arkadiy; Steurer, Walter</p> <p class="dwt_publisher"></p> <p class="publishDate">2014-08-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">165</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/servlets/purl/862324"> <span id="translatedtitle">17th Annual <span class="hlt">ALS</span> Users' Association Meeting</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">It's not exactly Russian roulette, but scheduling October events outdoors is not risk-free, even in usually sunny California. An overflow crowd of more than 400 registered users, <span class="hlt">ALS</span> staff, and vendors enjoyed a full indoor program featuring science highlights and workshops spread over two and a half days from October 18 to October 20. However, a major storm, heralding the onset of the San Francisco Bay Area rainy season, posed a few weather challenges for the events on the <span class="hlt">ALS</span> patio.</p> <div class="credits"> <p class="dwt_author">Robinson, Art; Tamura, Lori</p> <p class="dwt_publisher"></p> <p class="publishDate">2004-11-29</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">166</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/1972SSCom..11..123M"> <span id="translatedtitle">Critical currents in Nb 3<span class="hlt">Al</span></span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">Alternating current measurements on Nb 3<span class="hlt">Al</span> have shown that large amounts of the sample are driven normal at relatively low fields. Small variations of Tc are associated with very large variations of Hc2 , caused, most probably, by varying degrees of disorder. These regions of low Hc2 material may explain the low critical current densities measured in Nb 3<span class="hlt">Al</span> and other A-15 superconductors.</p> <div class="credits"> <p class="dwt_author">Martin, P. J.; Campbell, A. M.; Evetts, J. E.</p> <p class="dwt_publisher"></p> <p class="publishDate">1972-07-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">167</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/51327012"> <span id="translatedtitle">Structure of Cu32<span class="hlt">Al</span>19</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">POWDER photographs show that the deformed gamma structure Cu32<span class="hlt">Al</span>19 has 51 atoms in each of the pseudo-cubic unit cells; it is closely related to the cubic structure of Cu9<span class="hlt">Al</span>4 with 52 atoms per unit cell1. Whereas the latter is found with 21\\/13 or 22\\/13 electrons per atom, the deformed structure takes up to 89 electrons to 51 atoms. The complex</p> <div class="credits"> <p class="dwt_author">A. J. Bradley</p> <p class="dwt_publisher"></p> <p class="publishDate">1951-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">168</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/40287595"> <span id="translatedtitle">Transient oxidation of Ni<span class="hlt">Al</span></span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">The transient oxidation stage of single crystal (001)Ni<span class="hlt">Al</span> was investigated using scanning electron microscopy, transmission electron microscopy, electron diffraction and high resolution electron microscopy. (001)Ni<span class="hlt">Al</span> was oxidized in air at 950°C for 50h in order to produce transient forms of alumina on the surface. After oxidation, an oxide scale with plate-like surface morphology formed. The platelets on the surface of</p> <div class="credits"> <p class="dwt_author">J. C. Yang; E. Schumann; I. Levin; M. Rühle</p> <p class="dwt_publisher"></p> <p class="publishDate">1998-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">169</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/40658438"> <span id="translatedtitle">Dry sliding wear of Ni<span class="hlt">Al</span></span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">The dry sliding wear behavior of the B2-structured (ordered body-centered cubic) compound Ni<span class="hlt">Al</span> has been studied. Pin-on-disk experiments were conducted at room temperature in air using pins made from extruded Ni<span class="hlt">Al</span> with compositions of 50, 48, and 45 at.% aluminum. Partially stabilized zirconia was the disk material. Wear rate measurements showed an inverse relation between wear and hardness. Hardness increased</p> <div class="credits"> <p class="dwt_author">B. J. Johnson; F. E. Kennedy; I. Baker</p> <p class="dwt_publisher"></p> <p class="publishDate">1996-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">170</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/41027235"> <span id="translatedtitle">Morphological changes of the Ti 3<span class="hlt">Al</span> 5 phase formed by phase-decomposition of Ti<span class="hlt">Al</span> intermetallics</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">When Ti<span class="hlt">Al</span> intermetallics containing <span class="hlt">Al</span> of 56, 58 and 60 at.% are aged at 973 K, the Ti<span class="hlt">Al</span> phase decomposes into the two-phase state of Ti3<span class="hlt">Al</span>5 and Ti<span class="hlt">Al</span>. Transmission electron microscopy observations showed the following microstructure changes because of ageing: (1) in Ti-56<span class="hlt">Al</span>, first Ti3<span class="hlt">Al</span>5 precipitate particles are thin plates having (001) surfaces and then they coalesce with each other</p> <div class="credits"> <p class="dwt_author">Minoru Doi; Toshiyuki Koyama; Takeshi Taniguchi; Shizuo Naito</p> <p class="dwt_publisher"></p> <p class="publishDate">2002-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">171</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://enpub.fulton.asu.edu/cms/papers/met-ox_bonding.pdf"> <span id="translatedtitle">Electronic structure and bonding at the Alterminated <span class="hlt">Al</span>(111)/<span class="hlt">Al</span>2O3(0001) interface: A first principles study</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">Electronic structure and bonding at the <span class="hlt">Al</span>­terminated <span class="hlt">Al</span>(111)/«­<span class="hlt">Al</span>2O3(0001) interface: A first to determine the bonding character of the <span class="hlt">Al</span>­terminated <span class="hlt">Al</span>(111)/«­<span class="hlt">Al</span>2O3(0001) interface. By using an optimized is that between Aluminum and its native ox- ide, <span class="hlt">Al</span>2O3. Aluminum is one of the world's most widely used metals</p> <div class="credits"> <p class="dwt_author">Adams, James B</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">172</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4332387"> <span id="translatedtitle">Oxidative Stress Biomarkers in Sporadic <span class="hlt">ALS</span></span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p class="result-summary">Objective To investigate oxidative stress biomarkers in a cross-sectional pilot study of 50 participants with sporadic <span class="hlt">ALS</span> (s<span class="hlt">ALS</span>) compared to 46 control subjects. Methods We measured urinary 8-oxodeoxyguanosine (8-oxodG), urinary 15-F2t-isoprostane (IsoP), and plasma protein carbonyl by ELISA methods. We also determined if ELISA measurement of 8-oxodG could be validated against measures from high pressure liquid chromatography coupled with electrochemical detection, the current standard method. Results 8-oxodG and IsoP levels adjusted for creatinine were significantly elevated in s<span class="hlt">ALS</span> participants. These differences persisted after age and gender were controlled in regression analyses. These markers are highly and positively correlated with each other. 8-oxodG measured by the two techniques from the same urine sample were positively correlated (P < .0001). Protein carbonyl was not different between s<span class="hlt">ALS</span> participants and controls. Conclusion Using ELISA we confirmed that certain oxidative stress biomarkers were elevated in s<span class="hlt">ALS</span> participants. ELISA may be reliable and thus useful in epidemiology studies requiring large numbers of samples to determine the significance of increased oxidative stress markers in s<span class="hlt">ALS</span>. Further studies are required. PMID:18574762</p> <div class="credits"> <p class="dwt_author">Mitsumoto, Hiroshi; Santella, Regina M.; Liu, Xinhua; Bogdanov, Mikhail; Zipprich, Jennifer; Wu, Hui-Chen; Mahata, Julie; Kilty, Mary; Bednarz, Kate; Bell, Daniel; Gordon, Paul H.; Hornig, Mady; Mehrazin, Mahsa; Naini, Ali; Beal, M. Flint; Factor-Litvak, Pam</p> <p class="dwt_publisher"></p> <p class="publishDate">2015-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">173</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2009PhyB..404.3216C"> <span id="translatedtitle">27<span class="hlt">Al</span> NMR studies of NpPd 5<span class="hlt">Al</span> 2</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">We present 27<span class="hlt">Al</span> NMR studies for a single crystal of the Np-based superconductor NpPd 5<span class="hlt">Al</span> 2(Tc=4.9 K). We have observed a five-line 27<span class="hlt">Al</span> NMR spectrum with a center line and four satellite lines separated by first-order nuclear quadrupole splittings. The Knight shift clearly drops below Tc. The temperature dependence of the 27<span class="hlt">Al</span> nuclear spin-lattice relaxation rate shows no coherence peak below Tc, indicating that NpPd 5<span class="hlt">Al</span> 2 is an unconventional superconductor with an anisotropic gap. The analysis of the present NMR data provides evidence for strong-coupling d-wave superconductivity in NpPd 5<span class="hlt">Al</span> 2.</p> <div class="credits"> <p class="dwt_author">Chudo, H.; Sakai, H.; Tokunaga, Y.; Kambe, S.; Aoki, D.; Homma, Y.; Shiokawa, Y.; Haga, Y.; Ikeda, S.; Matsuda, T. D.; ?nuki, Y.; Yasuoka, H.</p> <p class="dwt_publisher"></p> <p class="publishDate">2009-10-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">174</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/biblio/1093153"> <span id="translatedtitle">Thermal Properties in the Mg<span class="hlt">Al</span>2O4-<span class="hlt">Al</span>2O3 System</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">Compositional effects on the thermal diffusivity in the Mg<span class="hlt">Al</span>2O4-<span class="hlt">Al</span>2O3 system were studied. The lowest thermal diffusivity, 0.0258 +/-5% cm/s, was measured between 79.8 and 83.9 wt% <span class="hlt">Al</span>2O3 quenched from various temperatures between 1500 and 1700C. All of the chemistries in this range extend past the solvus, but still form a singe super-saturated spinel solid solution, regardless of quenching tempeature. A super-saturated metastable solid solution region was observed at 1500, 1600, and 1700C extending to 83.9, 85.2, and 87.1 wt% <span class="hlt">Al</span>2O3, respectively. Beyond 83.9% <span class="hlt">Al</span>2O3 a significant increase in thermal diffusivity, 11.7%, was observed and its attributed to precipiation of <span class="hlt">Al</span>2O3 through spinodal decomposition.</p> <div class="credits"> <p class="dwt_author">Wilkerson, Dr. Kelley R. [Missouri University of Science and Technology; Smith, Jeffrey D [ORNL; Hemrick, James Gordon [ORNL</p> <p class="dwt_publisher"></p> <p class="publishDate">2013-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">175</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=19920049226&hterms=Al2O3&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D40%26Ntt%3DAl2O3"> <span id="translatedtitle">Protective <span class="hlt">Al</span>2O3 scale formation on Nb<span class="hlt">Al</span>3-base alloys</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p class="result-summary">The oxidation of Nb<span class="hlt">Al</span>3 with additions of Cr and Y was studied to determine the mechanisms of the beneficial effects of these elements upon oxidation. Cr additions to the binary Nb<span class="hlt">Al</span>3 alloy of up to 6.8 at. percent reduced the scale growth rates and promoted alpha-<span class="hlt">Al</span>2O3 formation over much longer times relative to binary Nb<span class="hlt">Al</span>3. A major effect of Cr is to form a layer of <span class="hlt">Al</span>NbCr at the metal/scale interface, which is inherently more oxidation-resistant than the matrix alloy in the long term. Yttrium additions to a Cr-containing alloy improved the scale growth rate and adherence and changed the scale microstructure to mimic that of a typical protective <span class="hlt">Al</span>2O3 scale.</p> <div class="credits"> <p class="dwt_author">Doychak, J.; Hebsur, M. G.</p> <p class="dwt_publisher"></p> <p class="publishDate">1991-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">176</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=19890059135&hterms=Ni3Al&qs=N%3D0%26Ntk%3DAll%26Ntx%3Dmode%2Bmatchall%26Ntt%3DNi3Al"> <span id="translatedtitle">TEM studies of oxidized Ni<span class="hlt">Al</span> and Ni3<span class="hlt">Al</span> cross sections</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p class="result-summary">Cross sections of oxide scale/(Ni-<span class="hlt">Al</span>) intermetallics were prepared by a new method and studied using primarily TEM. The cross sections were prepared by encasing an oxidized metal specimen sandwich in a low-melting-temperature zinc alloy. Observations of oxidized zirconium-doped beta-Ni<span class="hlt">Al</span> cross sections revealed crystallographic voids beneath an adherent <span class="hlt">Al</span>2O3 scale. The oxide-metal interface was incoherent, but a high dislocation density in the metal near the interface suggested that a large tensile stress was induced by the attached oxide scale. A duplex <span class="hlt">Al</span>2O3-Ni<span class="hlt">Al</span>2O4 scale formed on zirconium-doped and zirconium/boron-doped gamma-prime-Ni3<span class="hlt">Al</span> alloys. Additional results are presented involving oxidation mechanisms and oxide-metal interface structures.</p> <div class="credits"> <p class="dwt_author">Doychak, J.; Ruhle, M.</p> <p class="dwt_publisher"></p> <p class="publishDate">1989-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">177</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/servlets/purl/6445913"> <span id="translatedtitle">Theoretical studies of Ni/sub 3/<span class="hlt">Al</span> and Ni<span class="hlt">Al</span> with impurities</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">Intermetallic compound has been extensively studied because of their superior properties in strength, low creep rate, and high melting point. But most of the systems have room temperature ductility problems, like Ll/sub 2/ and B2 compounds. Both Ll/sub 2/ Ni/sub 3/<span class="hlt">Al</span> and B2 Ni<span class="hlt">Al</span> exhibit intergranular fracture mode. Understanding grain boundaries in these materials is of particular importance since intergranular fracture limits the applicability of these otherwise promising material. In an effort trying to understand the fracture mechanism, we have used embedded atom potentials to study the properties of Ni/sub 3/<span class="hlt">Al</span> and Ni<span class="hlt">Al</span>. We also consider the effect of boron, sulfur, and nickel segregation on the strength of grain boundaries in Ni/sub 3/<span class="hlt">Al</span> and Ni<span class="hlt">Al</span>. 22 refs., 2 figs.</p> <div class="credits"> <p class="dwt_author">Chen, S.P.; Voter, A.F.; Boring, A.M.; Albers, R.C.; Hay, P.J.</p> <p class="dwt_publisher"></p> <p class="publishDate">1988-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">178</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.phys.ufl.edu/~afh/reprints/GlassyTunnelJunctions_prb.pdf"> <span id="translatedtitle">Time-dependent glassy behavior of interface states in <span class="hlt">Al-AlOx-Al</span> tunnel junctions Jeremy R. Nesbitt and Arthur F. Hebard</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">, aluminum is known to completely wet transition metal surfaces and, when oxidized to completion, forms a tunnel barrier suitable for magnetic4,5 or Josephson6 tunnel junctions. Aluminum oxide <span class="hlt">Al</span>Ox barriers-temperature monitoring of electrical properties of <span class="hlt">Al-AlOx-Al</span> planar tunnel junctions beginning when the deposition</p> <div class="credits"> <p class="dwt_author">Hebard, Arthur F.</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">179</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.phy.mtu.edu/pandey/publications/GLDPGG2004.pdf"> <span id="translatedtitle">Structure, Energetics, Electronic, and Hydration Properties of Neutral and Anionic <span class="hlt">Al</span>3O6, <span class="hlt">Al</span>3O7, and <span class="hlt">Al</span>3O8 Clusters</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">-coordinated <span class="hlt">Al</span> sites. I. Introduction Aluminum oxide, <span class="hlt">Al</span>2O3, traditionally referred to as alumina, is a very. Clusters of aluminum oxide have, conse- quently, been studied both theoretically and experimentallyStructure, Energetics, Electronic, and Hydration Properties of Neutral and Anionic <span class="hlt">Al</span>3O6, <span class="hlt">Al</span>3O7</p> <div class="credits"> <p class="dwt_author">Pandey, Ravi</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">180</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/19916417"> <span id="translatedtitle">Magnetron sputtered nc-<span class="hlt">Al/alpha-Al</span>2O3 nanocomposite thin films for nonvolatile memory application.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">In this paper, we developed nc-<span class="hlt">Al/a-Al</span>2O3 nanocomposite thin films using magnetron sputtering. The nc-<span class="hlt">Al/a-Al</span>2O3 films were sputtered on p-type Si substrates from pure <span class="hlt">Al</span> target in gas mixture of Ar and O2. X-ray photoelectron spectroscopy and high resolution transmission electron microscope studies confirm that the nanocrystalline <span class="hlt">Al</span> are embedded in amorphous <span class="hlt">Al</span>2O3 matrix thus nc-<span class="hlt">Al</span>/ a-<span class="hlt">Al</span>2O3 nanocomposite forms. This nanocomposite thin film exhibits memory effect as a result of charge trapping. PMID:19916417</p> <div class="credits"> <p class="dwt_author">Li, Yibin; Zhang, Sam; Liu, Y; Chen, T P; Sritharan, Thirumany; Xu, Cong</p> <p class="dwt_publisher"></p> <p class="publishDate">2009-07-01</p> </div> </div> </div> </div> <div id="filter_results_form" class="filter_results_form floatContainer" style="visibility: visible;"> <div style="width:100%" id="PaginatedNavigation" class="paginatedNavigationElement"> <a id="FirstPageLink" onclick='return showDiv("page_1");' href="#" title="First Page"> <img id="FirstPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.first.18x20.png" alt="First Page" /></a> <a id="PreviousPageLink" onclick='return showDiv("page_8");' href="#" title="Previous Page"> <img id="PreviousPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.previous.18x20.png" alt="Previous Page" /></a> <span id="PageLinks" class="pageLinks"> <span> <a onClick='return showDiv("page_1");' href="#">1</a> <a onClick='return 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title="Next Page"> <img id="NextPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.next.18x20.png" alt="Next Page" /></a> <a id="LastPageLink" onclick='return showDiv("page_25.0");' href="#" title="Last Page"> <img id="LastPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.last.18x20.png" alt="Last Page" /></a> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">181</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/41015824"> <span id="translatedtitle">Weldability of <span class="hlt">Al</span> 4C 3–<span class="hlt">Al</span> composites via diffusion welding technique</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">In this study, <span class="hlt">Al–Al</span>4C3 composites, produced by powder metallurgy in situ techniques, were joined by diffusion welding technique at 250 MPa pressure with various welding temperatures and durations. Microstructures and shear strengths of the joined areas were determined. <span class="hlt">Al</span> powders were mixed with 2% carbon black and milled in a high energy ball mill (mechanical alloying) for up to 20</p> <div class="credits"> <p class="dwt_author">Halil Arik; Mustafa Aydin; Adem Kurt; Mehmet Turker</p> <p class="dwt_publisher"></p> <p class="publishDate">2005-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">182</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/40530908"> <span id="translatedtitle">On structure and mechanical properties of ultrasonically cast <span class="hlt">Al</span>–2% <span class="hlt">Al</span> 2O 3 nanocomposite</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">An investigation on the structure of an ultrasonically cast nanocomposite of <span class="hlt">Al</span> with 2wt.% nano-sized <span class="hlt">Al</span>2O3 (average size ?10nm) dispersoids showed that the nanocomposite was consisting of nearly continuous nano-alumina dispersed zones (NDZs) in the vicinity of the grain boundaries encapsulating <span class="hlt">Al</span>2O3 depleted zones (ADZs). The mechanical properties were investigated by nanoindentation and tensile tests. The nano-sized dispersoids caused a</p> <div class="credits"> <p class="dwt_author">S. Mula; P. Padhi; S. C. Panigrahi; S. K. Pabi; S. Ghosh</p> <p class="dwt_publisher"></p> <p class="publishDate">2009-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">183</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://theory.bio.uu.nl/immbio/sheets/College_7_juni_2.pdf"> <span id="translatedtitle">Polly Matzinger & Michel Oldstone Ohashi et <span class="hlt">al</span> Cell 1991, Oldstone et <span class="hlt">al</span> Cell 1991</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">of the clonotypes recognizing the pitopes that fail to induce tolerance. Otherwise the clo g Borghans et <span class="hlt">al</span>. [4] we. Otherwise the clone will be held <span class="hlt">al</span>. [4] we let be the fraction of clonotypes recognizing - p)(1-f)S . (4 . Following Borghans et <span class="hlt">al</span>. [4] we let be the fraction pe, i.e., = 1 - (1 - p)(1-f)S . emains tolerant when</p> <div class="credits"> <p class="dwt_author">Utrecht, Universiteit</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">184</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/41066273"> <span id="translatedtitle">Hydrogen solubility of two-phase (Ti 3<span class="hlt">Al</span> + Ti<span class="hlt">Al</span>) titanium aluminides</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">In this study, two-phase (αâ + γ) titanium aluminides were thermally charged with hydrogen, and the hydrogen solubility and the hydrogen evolution behavior were investigated by means of thermal desorption spectroscopy (TDS). Hydrogen solubility of two-phase (Tiâ<span class="hlt">Al</span> + Ti<span class="hlt">Al</span>) titanium aluminides occurred endothermically. A heat of solution for hydrogen dissolution in a Ti-50<span class="hlt">Al</span> alloy was estimated to be 36.4 kJ\\/mol</p> <div class="credits"> <p class="dwt_author">Akito Takasaki; Yoshio Furuya; Kozo Ojima; Youji Taneda</p> <p class="dwt_publisher"></p> <p class="publishDate">1995-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">185</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/40433908"> <span id="translatedtitle">Martensitic transformation in CVD Ni<span class="hlt">Al</span> and (Ni,Pt)<span class="hlt">Al</span> bond coatings</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">The martensitic phase transformation in single-phase ?-Ni<span class="hlt">Al</span> and (Ni,Pt)<span class="hlt">Al</span> coatings was investigated. After isothermal exposure to 1150 °C for 100 h, the ? phase in both types of coatings was transformed to a martensite phase during cooling to room temperature. Martensitic transformation was also observed in the (Ni,Pt)<span class="hlt">Al</span> bond coat with and without a YSZ top layer after thermal cycling</p> <div class="credits"> <p class="dwt_author">Y Zhang; J. A Haynes; B. A Pint; I. G Wright; W. Y Lee</p> <p class="dwt_publisher"></p> <p class="publishDate">2003-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">186</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/39757700"> <span id="translatedtitle">TEM studies of oxidized Ni<span class="hlt">Al</span> and Ni 3 <span class="hlt">Al</span> cross sections</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Cross sections of oxide scale\\/(Ni-<span class="hlt">Al</span>) intermetallics were prepared by a new method and studied using primarily transmission electron microscopy (TEM). The cross sections were prepared by encasing an oxidized metal specimen sandwich in a low-melting-temperature zinc alloy. Observations of oxidized zirconium-doped ß-Ni<span class="hlt">Al</span> cross sections revealed crystallographic voids beneath an adherent <span class="hlt">Al</span>2O3 scale. The oxide-metal interface was incoherent, but a high</p> <div class="credits"> <p class="dwt_author">J. Doychak; M. Rühle</p> <p class="dwt_publisher"></p> <p class="publishDate">1989-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">187</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=19890001234&hterms=potential+curves&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D30%26Ntt%3Dpotential%2Bcurves"> <span id="translatedtitle">The lowest ionization potentials of <span class="hlt">Al</span>2</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p class="result-summary">Potential curves for the lowest two electronic states (X 2 sigma g + and A 2 pi u) of <span class="hlt">Al</span>2(+) were computed using complete active space SCF/multireference CI wave functions and large Gaussian basis sets. The lowest observable vertical ionization potential (to <span class="hlt">Al</span>2(+) X 2 sigma g +) of the <span class="hlt">Al</span>2 X 3 pi u ground state is calculated to occur around 6.1 eV, in excellent agreement with the experimental range of 6.0 to 6.42 eV obtained in recent cluster ionization studies by Cox and co-workers. The second vertical ionization potential (to <span class="hlt">Al</span>2(+) A 2 pi u) occurs near 6.4 eV, also within the experimental range. The adiabatic IP of 5.90 eV is in good agreement with the value of 5.8 to 6.1 eV deduced by Hanley and co-workers from the difference in thresholds between collision induced dissociation processes of <span class="hlt">Al</span>3(+). The computed IP values are somewhat larger than those deduced from branching ratios in cluster fragmentation experiments by Jarrold and co-workers. The observation of an ionization threshold below 6.42 eV is shown to be incompatible with an <span class="hlt">Al</span>2 ground electronic state assignment of 3 sigma g -, but the separation between the two lowest states of <span class="hlt">Al</span>2 is so small that it is likely that both are populated in the experiments, so that this does not provide unambiguous support for the recent theoretical assignment of the ground state as 3 pi u.</p> <div class="credits"> <p class="dwt_author">Bauschlicher, Charles W., Jr.; Barnes, Leslie A.; Taylor, Peter R.</p> <p class="dwt_publisher"></p> <p class="publishDate">1988-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">188</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=19890057866&hterms=potential+curves&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D30%26Ntt%3Dpotential%2Bcurves"> <span id="translatedtitle">Lowest ionization potentials of <span class="hlt">Al</span>2</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p class="result-summary">Potential curves for the lowest two electronic states, X 2Sigma(+)g and A 2Pi(u), of <span class="hlt">Al</span>2(+) were computed using complete active space SCF/multireference CI wave functions and large Gaussian basis sets. The lowest observable vertical ionization potential, to <span class="hlt">Al</span>2(+) X 2Sigma(+)g, of the <span class="hlt">Al</span>2 X 3 Pi(u) ground state is calculated to occur around 6.1 eV, in excellent agreement with the experimental range of 6.0 to 6.42 eV obtained in recent cluster ionization studies by Cox and co-workers. The second vertical ionization potential, to <span class="hlt">Al</span>2(+) A 2Pi(u), occurs near 6.4 eV, also within the experimental range. The adiabatic IP of 5.90 eV is in good agreement with the value of 5.8 to 6.1 eV deduced by Hanley and co-workers from the difference in thresholds between collision induced dissociation processes of <span class="hlt">Al</span>3(+). The computed IP values are somewhat larger than those deduced from branching ratios in cluster fragmentation experiments by Jarrold and co-workers. The observation of an ionization threshold below 6.42 eV is shown to be incompatible with an <span class="hlt">Al</span>2 ground electronic state assignment of 3Sigma(-)g, but the separation between the two lowest states of <span class="hlt">Al</span>2 is so small that it is likely that both are populated in the experiments, so that this does not provide unambiguous support for the recent theoretical assignment of the ground state as 3Pi(u).</p> <div class="credits"> <p class="dwt_author">Bauschlicher, Charles W., Jr.; Barnes, Leslie A.; Taylor, Peter R.</p> <p class="dwt_publisher"></p> <p class="publishDate">1989-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">189</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/15870470"> <span id="translatedtitle">Analysis of the Candida albicans <span class="hlt">Als</span>2p and <span class="hlt">Als</span>4p adhesins suggests the potential for compensatory function within the <span class="hlt">Als</span> family.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">The <span class="hlt">ALS</span> (agglutinin-like sequence) gene family encodes eight large cell-surface glycoproteins. The work presented here focuses on <span class="hlt">Als</span>2p and <span class="hlt">Als</span>4p, and is part of a larger effort to deduce the function of each <span class="hlt">Als</span> protein. Both <span class="hlt">ALS</span>4 alleles were deleted from the Candida albicans genome and the phenotype of the mutant strain (<span class="hlt">als</span>4Delta/<span class="hlt">als</span>4Delta; named 2034) studied. Loss of <span class="hlt">Als</span>4p slowed germ tube formation of cells grown in RPMI 1640 medium and resulted in decreased adhesion of C. albicans to vascular endothelial cells. Loss of <span class="hlt">Als</span>4p did not affect adhesion to buccal epithelial cells, biofilm formation in a catheter model, or adhesion to or destruction of oral reconstituted human epithelium (RHE). Although deletion of one <span class="hlt">ALS</span>2 allele was achieved readily, a strain lacking the second allele was not identified despite screening thousands of transformants. The remaining <span class="hlt">ALS</span>2 allele was placed under control of the C. albicans MAL2 promoter to create an <span class="hlt">als</span>2Delta/PMAL2-<span class="hlt">ALS</span>2 strain (named 2342). Real-time RT-PCR analysis of strain 2342 grown in glucose-containing medium (non-inducing conditions) showed that although <span class="hlt">ALS</span>2 transcript levels were greatly reduced compared to wild-type cells, some <span class="hlt">ALS</span>2 transcript remained. The decreased <span class="hlt">ALS</span>2 expression levels were sufficient to slow germ tube formation in RPMI 1640 and Lee medium, reduce adhesion to vascular endothelial cells and to RHE, decrease RHE destruction, and impair biofilm formation. Growth of strain 2342 in maltose-containing medium (inducing conditions) restored the wild-type phenotype in all assays. Real-time RT-PCR analysis demonstrated that in maltose-containing medium, strain 2342 overexpressed <span class="hlt">ALS</span>2 compared to wild-type cells; however no overexpression phenotype was apparent. Microarray analysis revealed little transcriptional response to <span class="hlt">ALS</span>4 deletion, but showed twofold up-regulation of orf19.4765 in the glucose-medium-grown <span class="hlt">als</span>2Delta/PMAL2-<span class="hlt">ALS</span>2 strain. orf19.4765 encodes a protein with features of a glycosylated cell wall protein with similarity to Saccharomyces cerevisiae Ccw12p, although initial analysis suggested functional differences between the two proteins. Real-time RT-PCR measurement of <span class="hlt">ALS</span>2 and <span class="hlt">ALS</span>4 transcript copy number showed a 2.8-fold increase in <span class="hlt">ALS</span>2 expression in the <span class="hlt">als</span>4Delta/<span class="hlt">als</span>4Delta strain and a 3.2-fold increase in <span class="hlt">ALS</span>4 expression in the <span class="hlt">als</span>2Delta/PMAL2-<span class="hlt">ALS</span>2 strain, suggesting the potential for compensatory function between these related proteins. PMID:15870470</p> <div class="credits"> <p class="dwt_author">Zhao, X; Oh, S-H; Yeater, K M; Hoyer, L L</p> <p class="dwt_publisher"></p> <p class="publishDate">2005-05-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">190</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2012SSCom.152.2078N"> <span id="translatedtitle">Chemical trend of superconducting transition temperature in hole-doped delafossite of Cu<span class="hlt">Al</span>O2, Ag<span class="hlt">Al</span>O2 and Au<span class="hlt">Al</span>O2</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">We have performed the first-principles calculations about the superconducting transition temperature Tc of hole-doped delafossite Cu<span class="hlt">Al</span>O2, Ag<span class="hlt">Al</span>O2 and Au<span class="hlt">Al</span>O2. Calculated Tc are about 50 K (Cu<span class="hlt">Al</span>O2), 40 K (Ag<span class="hlt">Al</span>O2) and 3 K(Au<span class="hlt">Al</span>O2) at maximum in the optimum hole-doping concentration. The low Tc of Au<span class="hlt">Al</span>O2 is attributed to the weak electron-phonon interaction caused by the low covalency and heavy atomic mass.</p> <div class="credits"> <p class="dwt_author">Nakanishi, Akitaka; Katayama-Yoshida, Hiroshi</p> <p class="dwt_publisher"></p> <p class="publishDate">2012-12-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">191</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2014SurSc.624....1L"> <span id="translatedtitle">First-principle study of adhesion, wetting and bonding on <span class="hlt">Al/Al</span>3V(001) interface</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">The adhesion, wetting, and bonding on fcc-<span class="hlt">Al</span>(001)/D022-<span class="hlt">Al</span>3V(001) interface were investigated using density functional calculations. Considering different terminations of <span class="hlt">Al</span>3V(001) (<span class="hlt">Al</span>- and <span class="hlt">Al</span> + V-terminated) and stacking sites (center-, hollow- and top-sites), six <span class="hlt">Al/Al</span>3V(001) models were calculated. For the models with same stacking site, <span class="hlt">Al</span> + V-terminated model has larger work of adhesion (Wad) than the <span class="hlt">Al</span>-terminated one. For the models with same termination, the work of adhesion decreases, and the interface energy (?int) increases as the order of top-, bridge- and center-sites. <span class="hlt">Al</span>-terminated-center-sited and <span class="hlt">Al</span> + V-terminated-center-sited models are more stable among six models. After complete structure relaxation, both models have the same epitaxial stacking style. Therefore, the both models can be regarded as of the same and most stable one (noted as CSI model), but separating along <span class="hlt">Al-Al</span> and <span class="hlt">Al-Al</span>+V inter-planes. Based on the perfect wetting and strong adhesion in CSI model, the heterogeneous nucleation of ?-<span class="hlt">Al</span> on <span class="hlt">Al</span>3V(001) was interpreted in terms of crystallography and thermodynamics. The interfacial bonding was discussed with analysis of valence electron density distribution and partial density of states (PDOS). The bonding is mainly contributed from <span class="hlt">Al</span>V covalent bonds and <span class="hlt">AlAl</span> metallic interactions.</p> <div class="credits"> <p class="dwt_author">Li, Jian; Qi, Yuning; Zhang, Ming; Zhou, Yong; Li, Xiao</p> <p class="dwt_publisher"></p> <p class="publishDate">2014-06-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">192</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://hal.archives-ouvertes.fr/docs/00/67/69/13/PDF/GRL_2010_37_L20306.pdf"> <span id="translatedtitle">Elasticity of <span class="hlt">Al</span>FeO3 and Fe<span class="hlt">Al</span>O3 perovskite and postperovskite from firstprinciples calculations</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">Elasticity of <span class="hlt">Al</span>FeO3 and Fe<span class="hlt">Al</span>O3 perovskite and postperovskite from firstprinciples calculations R constants tensor of perovskite and postperovskite with formulas <span class="hlt">Al</span>FeO3 and Fe<span class="hlt">Al</span>O3 in which Fe or <span class="hlt">Al</span> perovskite and postperovskite is associated with a site exchange, during which Fe from the interoctahedral</p> <div class="credits"> <p class="dwt_author">Paris-Sud XI, Université de</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">193</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://coolchips.sfsu.edu/LT_XXI-2.doc.pdf"> <span id="translatedtitle">Preparation and characterization of <span class="hlt">Al/Al</span>2O3/Cu SIN tunnel junctions microfabricated with a full wafer process</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">Preparation and characterization of <span class="hlt">Al/Al</span>2O3/Cu SIN tunnel junctions microfabricated with a full at Storrs We have developed a "full wafer" process for producing <span class="hlt">Al/Al</span>2O3/Cu superconductor the "full wafer" process developed for Nb/<span class="hlt">Al</span> 2 O 3 /Nb superconductor-insulator-superconductor (SIS) devices</p> <div class="credits"> <p class="dwt_author">Neuhauser, Barbara</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">194</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/biblio/616445"> <span id="translatedtitle">Long range order and vacancy properties in <span class="hlt">Al</span>-rich Fe{sub 3}<span class="hlt">Al</span> and Fe{sub 3}<span class="hlt">Al</span>(Cr) alloys</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">Neutron powder diffraction measurements have been carried out in situ from room temperature to about 100 C in Fe28<span class="hlt">Al</span> (28 at.% <span class="hlt">Al</span>), Fe32.5<span class="hlt">Al</span> (32.5 at.% <span class="hlt">Al</span>) and Fe28<span class="hlt">Al</span>15Cr (28 at.% <span class="hlt">Al</span>, 5 at.% Cr) alloys. X-ray diffraction and TEM studies provided supporting information. The data were analyzed to obtain information about the temperature dependence of the DO{sub 3} and B2 long range order parameters, the location of the Cr atoms and their effect on the ordering energies, and on the vacancy formation and migration properties in Fe28<span class="hlt">Al</span> and Fe32.5<span class="hlt">Al</span> alloys. The location of the ternary alloying addition in DO{sub 3} and B2 ordered <span class="hlt">Al</span>-rich Fe{sub 3}<span class="hlt">Al</span> is shown to be consistent with considerations of interatomic bond energies.</p> <div class="credits"> <p class="dwt_author">Kim, S.M. [AECL, Chalk River, Ontario (Canada). Chalk River Labs.] [AECL, Chalk River, Ontario (Canada). Chalk River Labs.; Morris, D.G. [Univ. of Neuchatel (Switzerland). Inst. of Structural Metallurgy] [Univ. of Neuchatel (Switzerland). Inst. of Structural Metallurgy</p> <p class="dwt_publisher"></p> <p class="publishDate">1998-05-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">195</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://arxiv.org/pdf/0804.0824.pdf"> <span id="translatedtitle">Evidence for High Tc Superconducting Transitions in Isolated <span class="hlt">Al</span>45- and <span class="hlt">Al</span>47- Nanoclusters</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">Heat capacities measured for <span class="hlt">Al</span>45- and <span class="hlt">Al</span>47- nanoclusters have reproducible jumps at ~ 200 K. These jumps are consistent with theoretical predictions that some clusters with highly degenerate electronic states near the Fermi level will undergo a transition into a high Tc superconducting state. An analysis based on a theoretical treatment of pairing in <span class="hlt">Al</span>45- and <span class="hlt">Al</span>47- agrees well with the experimental data in both the value of the critical temperature and in the size and width of the jumps in the heat capacity.</p> <div class="credits"> <p class="dwt_author">Cao, Baopeng; Starace, Anne K; Ovchinnikov, Yurii N; Kresin, Vladimir Z; Jarrold, Martin F</p> <p class="dwt_publisher"></p> <p class="publishDate">2008-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">196</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=19830003032&hterms=coal&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D80%26Ntt%3Dcoal"> <span id="translatedtitle">High temperature deformation of Ni<span class="hlt">Al</span> and Co<span class="hlt">Al</span></span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p class="result-summary">The high temperature mechanical properties of the aluminides are reviewed with respect to their potential as high temperature structural materials. It is shown that Ni<span class="hlt">Al</span> and Co<span class="hlt">Al</span> are substantially stronger than the pure metals Ni and Co at high temperatures and approach the strength of some superalloys, particularly when those superalloys are tested in "weak" directions. The factors that limit and control the high temperature strengths of Ni<span class="hlt">Al</span> and Co<span class="hlt">Al</span> are examined to provide a basis for the development of intermetallic alloys of this type.</p> <div class="credits"> <p class="dwt_author">Nix, W. D.</p> <p class="dwt_publisher"></p> <p class="publishDate">1982-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">197</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2014MMTB...45.1380P"> <span id="translatedtitle">-CaO Slags by <span class="hlt">Al</span> in Fe-<span class="hlt">Al</span>(-Si) Melts</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">Kinetic models considering mass transport in, (i) metal phase only and (ii) both metal and slag phases (mixed control or two-phase mass transfer) were developed for the reduction of SiO2 in a SiO2-<span class="hlt">Al</span>2O3-CaO slag by <span class="hlt">Al</span> in an <span class="hlt">Al</span>-Fe melt. The models were validated with experiments of the reaction with Fe-<span class="hlt">Al</span> melt and SiO2-<span class="hlt">Al</span>2O3-CaO-MgOsat slags at 1873 K (1600 °C). The models predict that the rate of reaction is slower in the mixed control model because of the added resistance of slag phase mass transport. The mixed control becomes applicable when the slag contains low amounts of SiO2. In this case, when the initial <span class="hlt">Al</span> content in the metal increases, the normalized rate of reaction decreases. The increased <span class="hlt">Al</span> content in the metal retards the reaction due to the limited SiO2 provided to the reaction interface in the mixed control model. Sensitivity analyses were done using the models for the ratios of mass transfer coefficients of Si to <span class="hlt">Al</span>, and <span class="hlt">Al</span>2O3 to Si, along with slag density, which did not impose a significant effect.</p> <div class="credits"> <p class="dwt_author">Park, Jiwon; Sridhar, Seetharaman; Fruehan, Richard J.</p> <p class="dwt_publisher"></p> <p class="publishDate">2014-08-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">198</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2010PhLA..374.3230Y"> <span id="translatedtitle">Glassy ferromagnetism in <span class="hlt">Al</span>-doped 4H-SiC: <span class="hlt">Al</span>Si-V complexes</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">The recent observed glassy ferromagnetism in <span class="hlt">Al</span>-doped 4 H-SiC is investigated using first principles calculations. We find that the formation energy of V is significantly reduced by <span class="hlt">Al</span> atoms doped in SiC. The <span class="hlt">Al</span> Si- V complex induces a half-filled narrow a level in the band gap and contributes a net local moment of 1 ?. The exchange parameter J can be either positive or negative along different directions. Both the strong anisotropy of J and the correlation effects of the a level can lead to a glassy ferromagnetism in <span class="hlt">Al</span>-doped 4 H-SiC.</p> <div class="credits"> <p class="dwt_author">Yang, Mao; Shi, Jun-jie</p> <p class="dwt_publisher"></p> <p class="publishDate">2010-07-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">199</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=19920053767&hterms=Al2O3&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D50%26Ntt%3DAl2O3"> <span id="translatedtitle">Combustion synthesis of TiB2-<span class="hlt">Al</span>2O3-<span class="hlt">Al</span> composite materials</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p class="result-summary">The oxide-aluminum exothermic reduction reaction is presently used in the combustion-synthesis of ceramic/metal composites. An excess of <span class="hlt">Al</span> is used in the reacting materials, which rapidly generate enough heat to exceed <span class="hlt">Al</span>'s melting point. The molten <span class="hlt">Al</span> thus evolved is allowed to infiltrate the porous ceramic matrix as the exothermic reaction proceeds; this feature of the process turns the disadvantage of high porosity levels in combustion-synthesized materials into an advantage. Attention is given to the system obtained with 3TiO2 + 3B2O3 + (10-x)<span class="hlt">Al</span> starting materials.</p> <div class="credits"> <p class="dwt_author">Feng, H. J.; Moore, J. J.; Wirth, D. G.</p> <p class="dwt_publisher"></p> <p class="publishDate">1991-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">200</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/biblio/571807"> <span id="translatedtitle">Microstructure and strengthening of creep-tested cryomilled Ni<span class="hlt">Al-Al</span>N</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">The B2 intermetallic Ni<span class="hlt">Al</span> is considered to be a prime candidate material for use as very high temperature structural components in gas turbine engines. The mechanical grinding of prealloyed Ni<span class="hlt">Al</span> powder in liquid nitrogen (cryomilling) results in an intermetallic matrix composite where micron sized particle free aluminide cores (grains) are surrounded by thin mantles comprised of nanometer sized <span class="hlt">Al</span>N particles and Ni<span class="hlt">Al</span> grains. Under high temperature, slow strain rate conditions both compressive and tensile creep testing have shown that the mechanical strength of hot extruded cryomilled Ni<span class="hlt">Al</span> approaches the levels exhibited by advanced Ni<span class="hlt">Al</span>-based single crystals and simple Ni-based superalloys. Transmission electron microscopy of cryomilled materials tested between 1,100 and 1,300 K revealed little, if any, dislocation structure within the mantle regions, while the Ni<span class="hlt">Al</span> cores contained subgrains and dislocation networks after testing at all strain rates between 10{sup {minus}4} and 10{sup {minus}8} s{sup {minus}1}. These and other microstructural observations suggest that creep strength is the result of a fine Ni<span class="hlt">Al</span> grain/subgrain size, the inability of dislocations to move through the mantle and stabilization of the microstructure by the <span class="hlt">Al</span>N particles.</p> <div class="credits"> <p class="dwt_author">Garg, A. [AYT, Cleveland, OH (United States); Whittenberger, J.D. [NASA Lewis Research Center, Cleveland, OH (United States); Luton, M.J. [Exxon Research and Engineering Co., East Annandale, NJ (United States)</p> <p class="dwt_publisher"></p> <p class="publishDate">1997-12-31</p> </div> </div> </div> </div> <div id="filter_results_form" class="filter_results_form floatContainer" style="visibility: visible;"> <div style="width:100%" id="PaginatedNavigation" class="paginatedNavigationElement"> <a id="FirstPageLink" onclick='return showDiv("page_1");' href="#" title="First Page"> <img id="FirstPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.first.18x20.png" alt="First Page" /></a> <a id="PreviousPageLink" onclick='return showDiv("page_9");' href="#" title="Previous Page"> <img id="PreviousPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.previous.18x20.png" alt="Previous Page" /></a> <span id="PageLinks" class="pageLinks"> <span> <a onClick='return showDiv("page_1");' href="#">1</a> <a onClick='return showDiv("page_2");' href="#">2</a> <a onClick='return 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<a style="font-weight: bold;">11</a> <a onClick='return showDiv("page_12");' href="#">12</a> <a onClick='return showDiv("page_13");' href="#">13</a> <a onClick='return showDiv("page_14");' href="#">14</a> <a onClick='return showDiv("page_15");' href="#">15</a> <a onClick='return showDiv("page_16");' href="#">16</a> <a onClick='return showDiv("page_17");' href="#">17</a> <a onClick='return showDiv("page_18");' href="#">18</a> <a onClick='return showDiv("page_19");' href="#">19</a> <a onClick='return showDiv("page_20");' href="#">20</a> <a onClick='return showDiv("page_21");' href="#">21</a> <a onClick='return showDiv("page_22");' href="#">22</a> <a onClick='return showDiv("page_23");' href="#">23</a> <a onClick='return showDiv("page_24");' href="#">24</a> <a onClick='return showDiv("page_25");' href="#">25</a> </span> </span> <a id="NextPageLink" onclick='return showDiv("page_12");' href="#" title="Next Page"> <img id="NextPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.next.18x20.png" alt="Next Page" /></a> <a id="LastPageLink" onclick='return showDiv("page_25.0");' href="#" title="Last Page"> <img id="LastPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.last.18x20.png" alt="Last Page" /></a> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">201</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.tau.ac.il/~gilast/PAPERS/Science2003reviewed.pdf"> <span id="translatedtitle">ported by Nomura et <span class="hlt">al</span>. (1) meets the on-</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">suited to AMLCD select transis- tor applications. Hoffman et <span class="hlt">al</span>. (3) and Carcia et <span class="hlt">al</span>. (4) have demonstrated on-to-off current ratios greater than 106. Moreover, Carcia et <span class="hlt">al</span>. (4) have fabricated ZnO trans</p> <div class="credits"> <p class="dwt_author">Ast, Gil</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">202</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www2.ece.ttu.edu/nanophotonics/papers/APL%20papers/AlGaN%20GaN%20AlN%20quantum-well%20field-effect%20transistors%20with%20highly%20resistive%20AlN%20epilayers.pdf"> <span id="translatedtitle"><span class="hlt">AlGaN/GaN/Al</span>N quantum-well field-effect transistors with highly resistive <span class="hlt">Al</span>N epilayers</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary"><span class="hlt">AlGaN/GaN/Al</span>N quantum-well field-effect transistors with highly resistive <span class="hlt">Al</span>N epilayers Z. Y. Fana 66506-2601 Received 23 November 2005; accepted 5 January 2006; published online 16 February 2006 <span class="hlt">AlGaN/GaN/Al</span>N quantum-well field-effect transistors have been demonstrated. By replacing a semi-insulating GaN epilayer</p> <div class="credits"> <p class="dwt_author">Jiang, Hongxing</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">203</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2004APS..MARD33006C"> <span id="translatedtitle">Photoemission from <span class="hlt">Al</span> Alloys during Tensile Deformation</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">We report simultaneous measurements of strain and photoelectron emission intensity from high purity <span class="hlt">Al</span> (1350), <span class="hlt">Al</span>-Mg (5052), <span class="hlt">Al</span>-Mn (3003), <span class="hlt">Al</span>-Cu (2024) and <span class="hlt">Al</span>-Mg-Si (6061) alloys under uniaxial tension due to pulsed excimer laser radiation (248-nm). The photoemission signals are sensitive to deformation-induced changes in surface morphology, including the formation of slip lines and slip bands. In the early stages of deformation (strain Â¡Ü 0.03), the photoemission intensity increases gradually in a nonlinear fashion. Depending on sample composition and heat treatment, the photoemission intensity subsequently grows linearly until the accumulated strain reaches about 0.20. Finally, the photoemission intensity increases parabolically until failure. The onset of strain localization corresponds to the transition from linear to parabolic growth. A constitutional model incorporating microstructure evolution and work-hardening during tensile deformation is proposed to qualitatively interpret the growth of the photoemission signals as a function of strain. The photoemission signals from the tested alloys are interpreted in terms of the effect of surface treatment, work function, microstructure, and composition on the development of dislocation structures during deformation.</p> <div class="credits"> <p class="dwt_author">Cai, Mingdong; Langford, Stephen; Levine, Lyle; Dickinson, Thomas</p> <p class="dwt_publisher"></p> <p class="publishDate">2004-03-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">204</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/servlets/purl/414032"> <span id="translatedtitle">Survey and alignment at the <span class="hlt">ALS</span></span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">This paper describes survey and alignment at the Lawrence Berkeley National Laboratory`s Advanced Light Source (<span class="hlt">ALS</span>) accelerators from 1993 to 1995. The <span class="hlt">ALS</span> is a 1.0 - 1.9 GeV electron accelerator producing extremely bright synchrotron light in the UV and soft-X-ray wavelengths. At the <span class="hlt">ALS</span>, electrons are accelerated in a LINAC to 50 MeV, injected into a booster ring for further acceleration and finally injected into the storage ring. This is shown schematically in Figure 1. The storage ring, some 200 m in circumference, has been run with electron currents above 400 mA with lifetimes as high as 24 hours. The <span class="hlt">ALS</span> is a third generation light source and requires for efficient storage ring operation, magnets aligned to within 150 mm of their ideal position. To accomplish this a network of monuments was established and their positions measured with respect to one another. The data was reduced using GEONET`` and STAR*NET`` software. Using the monuments as reference points, magnet positions were measured and alignment confirmed using the Kem Electronic Coordinate Determination System (ECDS``). A number of other papers dealing with survey and alignment (S&A) at the <span class="hlt">ALS</span> have been written that may further elucidate some details of the methods and systems described in this paper.</p> <div class="credits"> <p class="dwt_author">Krebs, G.F.; Lauritzen, T.; Thur, W.</p> <p class="dwt_publisher"></p> <p class="publishDate">1995-11-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">205</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/biblio/603868"> <span id="translatedtitle">Tensile properties of Ni<span class="hlt">Al</span> bicrystals</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">The intermetallic compound {beta}-Ni<span class="hlt">Al</span> continues to receive considerable attention in spite of its lack of room temperature toughness and high temperature strength. Although the dislocations are mobile at room temperature, the lack of a sufficient number of slip systems precludes significant elongation in single and polycrystalline Ni<span class="hlt">Al</span> except in single crystals under special conditions. In the case of polycrystals of stoichiometric Ni<span class="hlt">Al</span>, the room temperature fracture tends to be mostly intergranular; this has been related to the stresses that build up at the grain boundaries during plastic deformation due to the lack of active independent deformation mechanisms or the possibility that the grain boundaries are intrinsically weak. The present study was designed to establish the condition of grain boundary fracture by performing tensile tests at different temperatures and strain rates on bicrystals of Ni<span class="hlt">Al</span> containing natural boundaries produced by Bridgman growth. This approach was selected based on the previous work on Ni<span class="hlt">Al</span> bicrystals produced by diffusion bonding/brazing and Bridgman growth. In some cases, these boundaries were reportedly enriched in nickel although it is unclear, based on the limited atomistic modeling efforts to date, whether this is a result of sample processing or is a characteristic of this compound. Furthermore, the previous studies of slip behavior were performed in compression which is less suitable for examining the relative strength of the grain boundaries.</p> <div class="credits"> <p class="dwt_author">LeBleu, J.B. Jr.; Mei, P.R.; Levit, V.I.; Kaufman, M.J. [Univ. of Florida, Gainesville, FL (United States). Dept. of Materials Science and Engineering] [Univ. of Florida, Gainesville, FL (United States). Dept. of Materials Science and Engineering</p> <p class="dwt_publisher"></p> <p class="publishDate">1998-01-06</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">206</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/25284449"> <span id="translatedtitle">Computational cogitation of cn @<span class="hlt">al</span>12 clusters.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">A variety of novel Cn <span class="hlt">Al</span>12 core-shell nanoclusters have been investigated using density functional calculations. A series of Cn cores (n=1-4) have been encapsulated by icosahedral <span class="hlt">Al</span>12 , with characteristic physical properties (energetics and stabilities, ionisation energies, electron affinities) calculated for each cluster. Other isomers, with the Cn moiety bound externally to the <span class="hlt">Al</span>12 shell, have also been studied. For both series, a peak in stability was found for n(C)=2, a characteristic that appears to be inextricably linked with the relaxation of the constituent parts upon dissociation. Analysis of trends for ionisation energies and electron affinities includes evaluation of contributions from the carbon and aluminium components, which highlights the effects of composition and morphology on cluster properties. PMID:25284449</p> <div class="credits"> <p class="dwt_author">Irving, Benjamin J; Naumkin, Fedor Y</p> <p class="dwt_publisher"></p> <p class="publishDate">2015-01-12</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">207</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/servlets/purl/434994"> <span id="translatedtitle">The mechanical properties of Fe<span class="hlt">Al</span></span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">Only in the last few years has progress been made in obtaining reproducible mechanical properties data for Fe<span class="hlt">Al</span>. Two sets of observations are the foundation of this progress. The first is that the large vacancy concentrations that exist in Fe<span class="hlt">Al</span> at high temperature are easily retained at low temperature and that these strongly affect the low-temperature mechanical properties. The second is that RT ductility is adversely affected by water vapor. Purpose of this paper is not to present a comprehensive overview of the mechanical properties of Fe<span class="hlt">Al</span> but rather to highlight our understanding of key phenomena and to show how an understanding of the factors which control the yield strength and fracture behavior has followed the discovery of the above two effects. 87 refs, 9 figs.</p> <div class="credits"> <p class="dwt_author">Baker, I. [Dartmouth Coll., Hanover, NH (United States); George, E.P. [Oak Ridge National Lab., TN (United States)</p> <p class="dwt_publisher"></p> <p class="publishDate">1996-12-31</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">208</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/servlets/purl/676870"> <span id="translatedtitle">Boron strengthening in Fe<span class="hlt">Al</span></span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">The effect of boron on the strength of B2-structured Fe<span class="hlt">Al</span> is considered as a function of composition, grain size and temperature. Boron does not affect the concentrations of antisite atoms or vacancies present, with the former increasing and the latter decreasing with increasing deviation from the stoichiometric composition. When vacancies are absent, the strength increase per at. % B per unit lattice strain, {Delta}{sigma}/({Delta}c x {epsilon}) increases with increasing aluminum concentration, but when vacancies are present (>45 at. % <span class="hlt">Al</span>), {Delta}{sigma}/({Delta}c x {epsilon}) decreases again. Boron increases grain size strengthening in Fe<span class="hlt">Al</span>. B strengthening is roughly independent of temperature up to the yield strength peak but above the point, when diffusion-assisted deformation occurs, boron strengthening increases dramatically.</p> <div class="credits"> <p class="dwt_author">Baker, I.; Li, X.; Xiao, H.; Klein, O.; Nelson, C. [Dartmouth Coll., Hanover, NH (United States). Thayer School of Engineering; Carleton, R.L.; George, E.P. [Oak Ridge National Lab., TN (United States). Metals and Ceramics Div.</p> <p class="dwt_publisher"></p> <p class="publishDate">1998-11-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">209</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/10386051"> <span id="translatedtitle">[<span class="hlt">Al</span>-Biruni--a universal scientist].</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary"><span class="hlt">Al</span>-Biruni's was of Persian descent. He was born in Horesmiya and had studied mathematics, history and medicine. Acquiring knowledge from these sciences, he wrote an outstanding work on chronology of several nations and devoted it to Ziyarit ruler Kabus. He made a chronological overview of calendars from many nations, including Persians, Greeks, Egyptians, Jews, Melkitian and Nestorian Christians, Sabeyaans as well as the old Arabs. Data presented in the work, according to the later authors, were taken from very reliable sources. He was contemporary of Ibn-Sina, and thanks to their friendship, they have discussed very much miscellaneous topics. He belonged to the group of scholars, taken by Gaznevian Soultan Mahmud to a long journey to India. Afterwards <span class="hlt">Al</span>-Biruni wrote and published detailed work "Description of India"--a work on cultural history of India. Due to excellent abilities of <span class="hlt">Al</span>-Biruni as a philosopher and scholar, there are still significant and reliable notes about buddhistic philosophy, structure of castes and Brahmans' life style. In this <span class="hlt">Al</span>-Biruni's masterpiece, there are many comparative analysis of Suffism and certain Indian philosophical methods. <span class="hlt">Al</span>-Biruni's most important work is "Pharmacopoeia"--"Kitab <span class="hlt">al</span>-saydala", which brilliantly describes all medicaments. This work has been published in many languages. He also wrote few works on astronomy and astrology. In those works he has explained some astrological events through scientific approach in a such peculiar way that nobody has ever explained before. He was also interested in sciences like geology, mineralology, geography, mathematics, psychology and many others. PMID:10386051</p> <div class="credits"> <p class="dwt_author">Kujundzi?, E; Masi?, I</p> <p class="dwt_publisher"></p> <p class="publishDate">1999-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">210</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ipn2.epfl.ch/LNS/publications/papers/2006_Lehnert_SS.pdf"> <span id="translatedtitle">Nucleation of ordered Fe islands on <span class="hlt">Al</span>2O3/Ni3<span class="hlt">Al</span>(111) A. Lehnert a</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">Nucleation of ordered Fe islands on <span class="hlt">Al</span>2O3/Ni3<span class="hlt">Al</span>(111) A. Lehnert a , A. Krupski b,c,*, S. Degen b the nucleation and stability of iron clusters on the <span class="hlt">Al</span>2O3/ Ni3<span class="hlt">Al</span>(111) surface as a function of coverage, it was also shown that metal deposition on <span class="hlt">Al</span>2O3/Ni3<span class="hlt">Al</span>(111) may lead to ordered cluster arrays [16</p> <div class="credits"> <p class="dwt_author">Brune, Harald</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">211</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://web.phys.ntu.edu.tw/nanomagnetism/eng/pdf/056-WCLin'sAPL.pdf"> <span id="translatedtitle">Controlled growth of Co nanoparticle assembly on nanostructured template <span class="hlt">Al</span>2O3/Ni<span class="hlt">Al</span>,,100...</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">Controlled growth of Co nanoparticle assembly on nanostructured template <span class="hlt">Al</span>2O3/Ni<span class="hlt">Al</span>,,100... Wen, and alignment is demonstrated to be feasible on a nanostructured template <span class="hlt">Al</span>2O3/Ni<span class="hlt">Al</span> 100 . At 140­170 K, a slow to reveal the similar growth mode in the particle size and alignment, on the <span class="hlt">Al</span>2O3/Ni<span class="hlt">Al</span> 100 ,6 the detailed</p> <div class="credits"> <p class="dwt_author">Lin, Minn-Tsong</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">212</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/biblio/20653227"> <span id="translatedtitle">Nb3<span class="hlt">Al</span> Development for HEP Applications</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">Recent developments in Nb3<span class="hlt">Al</span> strand for HEP applications are presented and discussed. The present state of available precursor is detailed. Two routes have been shown to lead to successful construction of MF Nb<span class="hlt">Al</span> composite wires. An extrusion method has so far produced the highest filament counts and smallest filament diameters, but requires more processing steps. A direct restack and draw approach has also been demonstrated which minimizes the number of processing steps while still leading to a high performance conductor. This latter route also allows for a lower cost per billet, potentially allowing the exploration of more process parameters.</p> <div class="credits"> <p class="dwt_author">Sumption, M.D.; Buta, F.; Collings, E.W. [Laboratories for Applied Superconductivity and Magnetism (LASM), MSE Dept, The Ohio State University, Columbus, OH 43210 (United States); Tomsic, M.; Phillips, J.; McFadden, K. [Hyper Tech Research Inc., Troy, OH 45373 (United States); Wu, X</p> <p class="dwt_publisher"></p> <p class="publishDate">2004-06-28</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">213</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/servlets/purl/10176774"> <span id="translatedtitle">The <span class="hlt">ALS</span> Storage Ring RF System</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">The <span class="hlt">ALS</span> Storage Ring RF System is characterized by the use of the following features: (1) High power loading of two single cell cavities. (2) The use of a tubular ceramic input window employing aperture coupling. (3) The use of waveguide filters and matchers designed for HOM absorption. (4) A comprehensive HOM monitoring system. (5) The use of waveguide water-wedge loads for the magic tee and circulator loads. The results of cavity measurements and high power tests are reported together with the performance of the system during the commissioning and operation phases of the <span class="hlt">ALS</span> project. Plans for future window development are discussed.</p> <div class="credits"> <p class="dwt_author">Taylor, B.; Lo, C.C.; Baptiste, K.; Guigli, J.; Julian, J.</p> <p class="dwt_publisher"></p> <p class="publishDate">1993-05-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">214</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/19006219"> <span id="translatedtitle">Giant magnetoresistance in Cu-Mn-<span class="hlt">Al</span></span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Giant negative magnetoresistance (GMR) has been observed in melt-spun CuxMnyAlz ribbons (x=50-65, y=5-25, and z=25-30), with values up to 15% at 30 K. GMR was observed in all samples with off-stoichiometric composition which had a tweed structure consisting of a mixture of Mn-rich and Mn-poor Cu2Mn<span class="hlt">Al</span>-type (2:1:1) regions and\\/or of a fine mixture of magnetic 2:1:1 and nonmagnetic Cu9<span class="hlt">Al</span>4 (9:4)</p> <div class="credits"> <p class="dwt_author">L. Yiping; A. Murthy; G. C. Hadjipanayis; H. Wan</p> <p class="dwt_publisher"></p> <p class="publishDate">1996-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">215</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://research.pbsci.ucsc.edu/chemistry/li/publications/2006_NanoLett_6_1468.pdf"> <span id="translatedtitle">Dopant-Free GaN/<span class="hlt">AlN/Al</span>GaN Radial Nanowire Heterostructures as High</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">, for the heterostructure. Field-effect transistors fabricated with ZrO2 dielectrics and metal top gates showed excellent for nanoscale electronic devices, including field-effect transistors (FETs),3-5 inverters,6 logic circuits,7Dopant-Free GaN/<span class="hlt">AlN/Al</span>GaN Radial Nanowire Heterostructures as High Electron Mobility Transistors</p> <div class="credits"> <p class="dwt_author">Li, Yat</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">216</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.era.lib.ed.ac.uk/handle/1842/5689"> <span id="translatedtitle">I have never touched her: the body in <span class="hlt">Al</span>-Ghazal <span class="hlt">Al</span>-‘Udhri </span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary"><span class="hlt">Al</span>-ghazal <span class="hlt">al</span>-‘udhri emerged as a remarkable literary genre in Arabic literature during the Umayyad period (7th-8th centuries CE). The leaders of this genre are famous poet-lovers who were known for their dramatic love ...</p> <div class="credits"> <p class="dwt_author">Alharthi, Jokha Mohammed</p> <p class="dwt_publisher"></p> <p class="publishDate">2011-02-09</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">217</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2014JOM....66i1785S"> <span id="translatedtitle">Melting, Processing, and Properties of Disordered Fe-<span class="hlt">Al</span> and Fe-<span class="hlt">Al</span>-C Based Alloys</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">This article presents a part of the research work conducted in our laboratory to develop lightweight steels based on Fe-<span class="hlt">Al</span> alloys containing 7 wt.% and 9 wt.% aluminum for construction of advanced lightweight ground transportation systems, such as automotive vehicles and heavy-haul truck, and for civil engineering construction, such as bridges, tunnels, and buildings. The melting and casting of sound, porosity-free ingots of Fe-<span class="hlt">Al</span>-based alloys was accomplished by a newly developed cost-effective technique. The technique consists of using a special flux cover and proprietary charging schedule during air induction melting. These alloys were also produced using a vacuum induction melting (VIM) process for comparison purposes. The effect of aluminum (7 wt.% and 9 wt.%) on melting, processing, and properties of disordered solid solution Fe-<span class="hlt">Al</span> alloys has been studied in detail. Fe-7 wt.% <span class="hlt">Al</span> alloy could be produced using air induction melting with a flux cover with the properties comparable to the alloy produced through the VIM route. This material could be further processed through hot and cold working to produce sheets and thin foils. The cold-rolled and annealed sheet exhibited excellent room-temperature ductility. The role of carbon in Fe-7 wt.% <span class="hlt">Al</span> alloys has also been examined. The results indicate that Fe-<span class="hlt">Al</span> and Fe-<span class="hlt">Al</span>-C alloys containing about 7 wt.% <span class="hlt">Al</span> are potential lightweight steels.</p> <div class="credits"> <p class="dwt_author">Satya Prasad, V. V.; Khaple, Shivkumar; Baligidad, R. G.</p> <p class="dwt_publisher"></p> <p class="publishDate">2014-09-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">218</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://justice.uaa.alaska.edu/forum/30/3-4fall2013winter2014/303-4.fall2013winter2014.pdf"> <span id="translatedtitle">University of <span class="hlt">Al</span>AskA AnchorAge <span class="hlt">Al</span>AskA Justice Forum</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">and regulations that create hurdles to successful reintegration in seven areas: employment, public assistance to employment, public assistance, and parenting. Many of these institutionally created barriers (often referredUniversity of <span class="hlt">Al</span>AskA AnchorAge <span class="hlt">Al</span>AskA Justice Forum A PUblicAtion of the JUstice center Fall 2013</p> <div class="credits"> <p class="dwt_author">Pantaleone, Jim</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">219</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://justice.uaa.alaska.edu/forum/27/2summer2010/272summer2010.pdf"> <span id="translatedtitle">University of <span class="hlt">Al</span>AskA AnchorAge <span class="hlt">Al</span>AskA Justice Forum</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">assistance for low-income persons. (Municipal, state, and federal public defenders provide attorneysUniversity of <span class="hlt">Al</span>AskA AnchorAge <span class="hlt">Al</span>AskA Justice Forum A PUblicAtion of the JUstice center Summer 2010 states and the lack of at- torney assistance for a growing number of low-income citizens. In 1965</p> <div class="credits"> <p class="dwt_author">Pantaleone, Jim</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">220</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2006PMM...102..646N"> <span id="translatedtitle">Preparation, deformation, and failure of functional <span class="hlt">Al</span>-Sn and <span class="hlt">Al</span>-Sn-Pb nanocrystalline alloys</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">Changes in the structure, hardness, mechanical properties, and friction coefficient of <span class="hlt">Al</span>-30% Sn, <span class="hlt">Al</span>-15% Sn-25% Pb, and <span class="hlt">Al</span>-5% Sn-35% Pb (wt %) alloys subjected to severe plastic deformation by equal-channel angular pressing (with a force of 40 tonne) and by shear at a pressure of 5 GPa have been studied. The transition into the nanocrystalline state was shown to occur at different degrees of plastic deformation. The hardness exhibits nonmonotonic variations, namely, first it increases and subsequently decreases. The friction coefficient of the <span class="hlt">Al</span>-30% Sn, <span class="hlt">Al</span>-15% Sn-25% Pb, and <span class="hlt">Al</span>-5% Sn-35% Pb alloys quenched from the melt was found to be 0.33; the friction coefficients of these alloys in the submicrocrystalline state (after equal-channel angular pressing) equal 0.24, 0.32, and 0.35, respectively. The effect of disintegration into nano-sized powders was found to occur in the <span class="hlt">Al</span>-15% Sn-25% Pb, and <span class="hlt">Al</span>-5% Sn-35% Pb alloys after severe plastic deformation to ? = 6.4 and subsequent short-time holding.</p> <div class="credits"> <p class="dwt_author">Noskova, N. I.; Vil'Danova, N. F.; Filippov, Yu. I.; Churbaev, R. V.; Pereturina, I. A.; Korshunov, L. G.; Korznikov, A. V.</p> <p class="dwt_publisher"></p> <p class="publishDate">2006-12-01</p> </div> </div> </div> </div> <div id="filter_results_form" class="filter_results_form floatContainer" style="visibility: visible;"> <div style="width:100%" id="PaginatedNavigation" class="paginatedNavigationElement"> <a id="FirstPageLink" onclick='return showDiv("page_1");' href="#" title="First Page"> <img id="FirstPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.first.18x20.png" alt="First Page" /></a> <a id="PreviousPageLink" onclick='return showDiv("page_10");' href="#" title="Previous Page"> <img id="PreviousPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.previous.18x20.png" alt="Previous Page" /></a> <span id="PageLinks" class="pageLinks"> <span> <a onClick='return showDiv("page_1");' href="#">1</a> <a onClick='return showDiv("page_2");' href="#">2</a> <a onClick='return showDiv("page_3");' href="#">3</a> <a onClick='return showDiv("page_4");' 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style="font-weight: bold;">12</a> <a onClick='return showDiv("page_13");' href="#">13</a> <a onClick='return showDiv("page_14");' href="#">14</a> <a onClick='return showDiv("page_15");' href="#">15</a> <a onClick='return showDiv("page_16");' href="#">16</a> <a onClick='return showDiv("page_17");' href="#">17</a> <a onClick='return showDiv("page_18");' href="#">18</a> <a onClick='return showDiv("page_19");' href="#">19</a> <a onClick='return showDiv("page_20");' href="#">20</a> <a onClick='return showDiv("page_21");' href="#">21</a> <a onClick='return showDiv("page_22");' href="#">22</a> <a onClick='return showDiv("page_23");' href="#">23</a> <a onClick='return showDiv("page_24");' href="#">24</a> <a onClick='return showDiv("page_25");' href="#">25</a> </span> </span> <a id="NextPageLink" onclick='return showDiv("page_13");' href="#" title="Next Page"> <img id="NextPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.next.18x20.png" alt="Next Page" /></a> <a id="LastPageLink" onclick='return showDiv("page_25.0");' href="#" title="Last Page"> <img id="LastPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.last.18x20.png" alt="Last Page" /></a> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">221</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://eric.ed.gov/?q=Axioms&pg=5&id=EJ689425"> <span id="translatedtitle">An Alternative Perspective on von Winterfeldt et <span class="hlt">al.'s</span> (1997) Test of Consequence Monotonicity</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p class="result-summary">D. von Winterfeldt, N.-K. Chung, R. D. Luce, and Y. Cho (see record 1997-03378-008) provided several tests for consequence monotonicity of choice or judgment, using certainty equivalents of gambles. The authors reaxiomatized consequence monotonicity in a probabilistic framework and reanalyzed von Winterfeldt et <span class="hlt">al.'s</span> main experiment via a…</p> <div class="credits"> <p class="dwt_author">Ho, Moon-Ho R.; Regenwetter, Michel; Niederee, Reinhard; Heyer, Dieter</p> <p class="dwt_publisher"></p> <p class="publishDate">2005-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">222</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2002yCat..33880704V"> <span id="translatedtitle">VizieR Online Data Catalog: <span class="hlt">Al</span> I & <span class="hlt">Al</span> II absolute transition probabilities (Vujnovic+, 2002)</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">Relative intensity measurements of <span class="hlt">Al</span> I and <span class="hlt">Al</span> II spectral lines in the visible and ultraviolet spectral ranges are performed using a capacitively coupled high frequency double hollow electrode discharge. Branching ratios and intensity ratios within multiplets are determined. By using selected lifetimes absolute transition probabilities are calculated. (4 data files).</p> <div class="credits"> <p class="dwt_author">Vujnovic, V.; Blagoev, K.; Fuerboeck, C.; Neger, T.; Jaeger, H.</p> <p class="dwt_publisher"></p> <p class="publishDate">2002-05-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">223</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/1987PThPh..78..189H"> <span id="translatedtitle">Is Thieberger's Result Inconsistent with Stubbs et <span class="hlt">al.'s</span> One?</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">As to the presence of a fifth force Thieberger's outcome can be compatible with Stubbs et <span class="hlt">al.'s</span> one if the force is assumed to arise universal vector coupling to `oblique' fermion number defined by a linear combination of quark number and lepton number.</p> <div class="credits"> <p class="dwt_author">Hayashi, K.; Shirafuji, T.</p> <p class="dwt_publisher"></p> <p class="publishDate">1987-08-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">224</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://hal.archives-ouvertes.fr/docs/00/02/97/48/PS/clouet05.ps"> <span id="translatedtitle">ccsd00004518, Precipitation kinetics of <span class="hlt">Al</span> 3 Zr and <span class="hlt">Al</span> 3 Sc in</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">ccsd­00004518, version 2 ­ 21 Mar 2005 Precipitation kinetics of <span class="hlt">Al</span> 3 Zr and <span class="hlt">Al</span> 3 Sc in aluminum/Si#18;ege, 31-33, rue de la F#19;ed#19;eration, 75752 Paris cedex 15, France Abstract Precipitation dynamics, a mesoscopic modeling technique which describes the various stages of homogeneous precipitation</p> <div class="credits"> <p class="dwt_author"></p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">225</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/doepatents/biblio/872577"> <span id="translatedtitle">Electronic circuits having Ni<span class="hlt">Al</span> and Ni.sub.3 <span class="hlt">Al</span> substrates</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/doepatents">DOEpatents</a></p> <p class="result-summary">An electronic circuit component having improved mechanical properties and thermal conductivity comprises Ni<span class="hlt">Al</span> and/or Ni.sub.3 <span class="hlt">Al</span>, upon which an alumina layer is formed prior to applying the conductive elements. Additional layers of copper-aluminum alloy or copper further improve mechanical strength and thermal conductivity.</p> <div class="credits"> <p class="dwt_author">Deevi, Seetharama C. (Midlothian, VA); Sikka, Vinod K. (Oak Ridge, TN)</p> <p class="dwt_publisher"></p> <p class="publishDate">1999-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">226</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/21690942"> <span id="translatedtitle"><span class="hlt">Al</span> compositional inhomogeneity of <span class="hlt">Al</span>GaN epilayer with a high <span class="hlt">Al</span> composition grown by metal-organic chemical vapour deposition.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">The <span class="hlt">Al</span> compositional distribution of <span class="hlt">Al</span>GaN is investigated by cathodoluminescence (CL). Monochromatic CL images and CL spectra reveal a lateral <span class="hlt">Al</span> compositional inhomogeneity, which corresponds to surface hexagonal patterns. Cross-sectional CL images show a relatively uniform <span class="hlt">Al</span> compositional distribution in the growth direction, indicating columnar growth mode of <span class="hlt">Al</span>GaN films. In addition, a thin <span class="hlt">Al</span>GaN layer with lower <span class="hlt">Al</span> composition is grown on top of the buffer <span class="hlt">Al</span>N layer near the bottom of the <span class="hlt">Al</span>GaN epilayer because of the larger lateral mobility of Ga adatoms on the growth surface and their accumulation at the grain boundaries. PMID:21690942</p> <div class="credits"> <p class="dwt_author">Wang, X L; Zhao, D G; Jiang, D S; Yang, H; Liang, J W; Jahn, U; Ploog, K</p> <p class="dwt_publisher"></p> <p class="publishDate">2007-04-30</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">227</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2014SeScT..29i5011Z"> <span id="translatedtitle">Analysis of interface trap states in In<span class="hlt">AlN/Al</span>N/GaN heterostructures</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">Gate-source frequency-dependent capacitance and conductance measurements were performed on the In0.17<span class="hlt">Al</span>0.83N/<span class="hlt">Al</span>N/GaN heterostructure field-effect transistor with side-Ohmic contacts to study the characteristics of trap states at the interface between In<span class="hlt">Al</span>N and GaN. The values of interface trap state density and time constant were determined to be (0.96-3.36) × 1013 cm-2 eV-1 and (0.29-1.61) ?s, respectively. We calculated the strain in the In<span class="hlt">Al</span>N barrier layer under the gate and found that the In<span class="hlt">Al</span>N barrier layer was compressively strained with the in-plane strain of 1.31%. This is a possible reason for such a high interface trap state density which is not as low as supposed in the lattice-matched heterostructures.</p> <div class="credits"> <p class="dwt_author">Zhou, Yang; Lin, Zhaojun; Luan, Chongbiao; Zhao, Jingtao; Yang, Qihao; Yang, Ming; Wang, Yutang; Feng, Zhihong; Lv, Yuanjie</p> <p class="dwt_publisher"></p> <p class="publishDate">2014-09-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">228</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/biblio/21013666"> <span id="translatedtitle">Intersubband absorption in <span class="hlt">AlN/GaN/Al</span>GaN coupled quantum wells</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary"><span class="hlt">AlN/GaN/Al</span>GaN coupled quantum wells grown by molecular beam epitaxy have been developed and characterized via intersubband absorption spectroscopy. In these structures, an <span class="hlt">Al</span>GaN layer of sufficiently low <span class="hlt">Al</span> content is used to achieve strong interwell coupling without the need for ultrathin inner barriers. At the same time, <span class="hlt">Al</span>N is used in the outer barriers to provide the large quantum confinement required for near-infrared intersubband transitions. The composition of the inner barriers also provides a continuously tunable parameter to control the coupling strength. Double intersubband absorption peaks are measured in each sample, at photon energies in good agreement with theoretical expectations.</p> <div class="credits"> <p class="dwt_author">Driscoll, Kristina; Bhattacharyya, Anirban; Moustakas, Theodore D.; Paiella, Roberto; Zhou, Lin; Smith, David J. [Department of Electrical and Computer Engineering and Photonics Center, Boston University, 8 Saint Mary's Street, Boston, Massachusetts 02215 (United States); Department of Physics and School of Materials, Arizona State University, Tempe, Arizona 85287 (United States)</p> <p class="dwt_publisher"></p> <p class="publishDate">2007-10-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">229</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=19980210984&hterms=ajo&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D40%26Ntt%3Dajo"> <span id="translatedtitle">CVD Fiber Coatings for <span class="hlt">Al</span>2O3/Ni<span class="hlt">Al</span> Composites</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p class="result-summary">While sapphire-fiber-reinforced nickel aluminide (<span class="hlt">Al</span>2O3/Ni<span class="hlt">Al</span>) composites are an attractive candidate for high-temperature structures, the significant difference in the coefficient of thermal expansion between the Ni<span class="hlt">Al</span> matrix and the sapphire fiber creates substantial residual stresses in the composite. This study seeks to produce two fiber-coating systems with the potential to reduce the residual stresses in the sapphire/Ni<span class="hlt">Al</span> composite system. Chemical vapor deposition (CVD) was used to produce both the compensating and compliant-fiber coatings for use in sapphire/Ni<span class="hlt">Al</span> composites. A special reactor was designed and built to produce the FGM and to handle the toxic nickel precursors. This process was successfully used to produce 500-foot lengths of fiber with coating thicknesses of approximately 3 microns, 5 microns, and 10 microns.</p> <div class="credits"> <p class="dwt_author">Boss, Daniel E.</p> <p class="dwt_publisher"></p> <p class="publishDate">1995-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">230</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/servlets/purl/5188197"> <span id="translatedtitle"><span class="hlt">Al</span>/sub 2/O/sub 3/ adherence on CoCr<span class="hlt">Al</span> alloys</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">Adherence of protective oxides on NiCr<span class="hlt">Al</span> and CoCr<span class="hlt">Al</span> superalloys has been promoted by a dispersion of a highly oxygen reactive element or its oxide being produced within the protection system. Two aspects of this subject are investigated here: the use of <span class="hlt">Al</span>/sub 2/O/sub 3/ as both the dispersion and protective oxide; and the production of an HfO/sub 2/ dispersion while simultaneously aluminizing the alloy. It was found that an <span class="hlt">Al</span>/sub 2/O/sub 3/ dispersion will act to promote the adherence of an external scale of <span class="hlt">Al</span>/sub 2/O/sub 3/ to a degree comparable to previously tested dispersions and an HfO/sub 2/ dispersion comparable to that produced by a Rhines pack treatment is produced during aluminization.</p> <div class="credits"> <p class="dwt_author">Kingsley, L.M.</p> <p class="dwt_publisher"></p> <p class="publishDate">1980-04-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">231</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2012JTePh..57..840P"> <span id="translatedtitle">Properties and structure of oxidized coatings deposited onto <span class="hlt">Al</span>-Cu and <span class="hlt">Al</span>-Mg alloys</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">The results of new studies of creating protective oxide coatings based on <span class="hlt">Al</span>2O3 (Si, Mn) and deposited onto aluminum alloys using electrolyte-plasma oxidation are presented. An analysis is performed by scanning electron microscopy (SEM) with energy dispersive spectroscopy (EDS), X-ray diffraction, Rutherford backscattering of 4He+ and protons, nanoindentation, scratching, friction coefficient measurements, and acoustic emission measurements. The results demonstrate that the deposited coatings have a high quality, hardness, and wear resistance and a low thermal diffusivity. Apart from <span class="hlt">Al</span>2O3, the coatings are found to have Si, Mn, C, and Ca. The stoichiometry of the coatings is determined. The density and hardness of the coatings are close to those of ?-<span class="hlt">Al</span>2O3 in the coating on an <span class="hlt">Al</span>-Cu (D-16) substrate, and these values of the coating on an <span class="hlt">Al</span>-Mg (S006) are lower by a factor of 1.5.</p> <div class="credits"> <p class="dwt_author">Pogrebnyak, A. D.; Kylyshkanov, M. K.; Tyurin, Yu. N.; Kaverina, A. Sh.; Yakushchenko, I. V.; Borisenko, A. A.; Postol'ny, B. A.; Kulik, I. A.</p> <p class="dwt_publisher"></p> <p class="publishDate">2012-06-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">232</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=19920058951&hterms=High+compressive+stresses&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D10%26Ntt%3DHigh%2Bcompressive%2Bstresses"> <span id="translatedtitle">1400 and 1500 K Compressive Creep Properties of an Ni<span class="hlt">Al/Al</span>N Composite</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p class="result-summary">Compressive creep properties of an Ni<span class="hlt">Al/Al</span>N(p) composite produced by a reaction milling process were investigated at 1400 and 1500 K and at slow strain rates, to investigate the relative strength of this composite at high temperatures, and to determine if the consolidation technique affects the 1400 K creep properties. Results indicate that the stress exponent of the Ni<span class="hlt">Al/Al</span>N(p) composite was similar to that for unreinforced Ni<span class="hlt">Al</span>. However, the activation energy for the composite was found to be more than twice that measured in the unreinforced matrix. Oxidation did not affect the composite at 1400 K, but a significant attack was observed in a sample subjected to fast deformation at 1500 K.</p> <div class="credits"> <p class="dwt_author">Whittenberger, J. D.; Arzt, Eduard; Luton, Michael J.</p> <p class="dwt_publisher"></p> <p class="publishDate">1992-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">233</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=20100042390&hterms=Al2O3&qs=N%3D0%26Ntk%3DAll%26Ntx%3Dmode%2Bmatchall%26Ntt%3DAl2O3"> <span id="translatedtitle">Formation of gamma'-Ni3<span class="hlt">Al</span> via the Peritectoid Reaction: gamma plus beta (+<span class="hlt">Al</span>2O3) equals gamma'(+<span class="hlt">Al</span>2O3)</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p class="result-summary">The activities of <span class="hlt">Al</span> and Ni were measured using multi-cell Knudsen effusion-cell mass spectrometry (multi-cell KEMS), over the composition range 8 - 32 at.%<span class="hlt">Al</span> and temperature range T = 1400 - 1750 K in the Ni-<span class="hlt">Al</span>-O system. These measurements establish that equilibrium solidification of gamma'-Ni3<span class="hlt">Al</span>-containing alloys occurs by the eutectic reaction, L (+ <span class="hlt">Al</span>2O3) = gamma + beta (+ <span class="hlt">Al</span>2O3), at 1640 plus or minus 1 K and a liquid composition of 24.8 plus or minus 0.2 at.%<span class="hlt">Al</span> (at an unknown oxygen content). The {gamma + beta + <span class="hlt">Al</span>2O3} phase field is stable over the temperature range 1633 - 1640 K, and gamma'-Ni3<span class="hlt">Al</span> forms via the peritectiod, gamma + beta (+ <span class="hlt">Al</span>2O3) = gamma'(+ <span class="hlt">Al</span>2O3), at 1633 plus or minus 1 K. This behavior is inconsistent with the current Ni-<span class="hlt">Al</span> phase diagram and a new diagram is proposed. This new Ni-<span class="hlt">Al</span> phase diagram explains a number of unusual steady state solidification structures reported previously and provides a much simpler reaction scheme in the vicinity of the gamma'-Ni3<span class="hlt">Al</span> phase field.</p> <div class="credits"> <p class="dwt_author">Copland, Evan</p> <p class="dwt_publisher"></p> <p class="publishDate">2008-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">234</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=20080047352&hterms=Al2O3&qs=N%3D0%26Ntk%3DAll%26Ntx%3Dmode%2Bmatchall%26Ntt%3DAl2O3"> <span id="translatedtitle">Formation of gamma(sup prime)-Ni3<span class="hlt">Al</span> via the Peritectoid Reaction: gamma + beta (+ <span class="hlt">Al</span>2O3)=gamma(sup prime)(+ <span class="hlt">Al</span>2O3)</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p class="result-summary">The activities of <span class="hlt">Al</span> and Ni were measured using multi-cell Knudsen effusion-cell mass spectrometry (multi-cell KEMS), over the composition range 8-32 at.%<span class="hlt">Al</span> and temperature range T=1400-1750 K in the Ni-<span class="hlt">Al</span>-O system. These measurements establish that equilibrium solidification of gamma(sup prime)-Ni3<span class="hlt">Al</span>-containing alloys occurs by the eutectic reaction, L (+ <span class="hlt">Al</span>2O3)=gamma + Beta(+ <span class="hlt">Al</span>2O3), at 1640 +/- 1 K and a liquid composition of 24.8 +/- 0.2 at.%<span class="hlt">al</span> (at an unknown oxygen content). The {gamma + Beta (+<span class="hlt">Al</span>2O3} phase field is stable over the temperature range 1633-1640 K, and gamma(sup prime)-Ni3<span class="hlt">Al</span> forms via the peritectoid, gamma + Beta (+ <span class="hlt">Al</span>2O3)=gamma(sup prime) (+ <span class="hlt">Al</span>2O3), at 1633 +/- 1 K. This behavior is consistent with the current Ni-<span class="hlt">Al</span> phase diagram and a new diagram is proposed. This new Ni-<span class="hlt">Al</span> phase diagram explains a number of unusual steady-state solidification structures reported previously and provides a much simpler reaction scheme in the vicinity of the gamma(sup prime)-Ni2<span class="hlt">Al</span> phase field.</p> <div class="credits"> <p class="dwt_author">Copeland, Evan</p> <p class="dwt_publisher"></p> <p class="publishDate">2008-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">235</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://mitralab.org/_uploads/partha.pdf"> <span id="translatedtitle">Partha P. Mitra's Publications (Erlich, Mitra et <span class="hlt">al</span>. 2008; Saar and Mitra 2008; DeCoteau, Thorn et <span class="hlt">al</span>. 2007; DeCoteau,</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">Partha P. Mitra's Publications (Erlich, Mitra et <span class="hlt">al</span>. 2008; Saar and Mitra 2008; DeCoteau, Thorn et <span class="hlt">al</span>. 2007; DeCoteau, Thorn et <span class="hlt">al</span>. 2007; Lin, Bohland et <span class="hlt">al</span>. 2007; Mitra 2007; Mitra and Bokil 2007; Valente, Golani et <span class="hlt">al</span>. 2007; Valente, Wang et <span class="hlt">al</span>. 2007; Andrews, Saar et <span class="hlt">al</span>. 2006; Bokil, Purpura et <span class="hlt">al</span></p> <div class="credits"> <p class="dwt_author"></p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">236</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/doepatents/biblio/87741"> <span id="translatedtitle">Ternary Dy-Er-<span class="hlt">Al</span> magnetic refrigerants</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/doepatents">DOEpatents</a></p> <p class="result-summary">A ternary magnetic refrigerant material comprising (Dy{sub 1{minus}x}Er{sub x})<span class="hlt">Al</span>{sub 2} for a magnetic refrigerator using the Joule-Brayton thermodynamic cycle spanning a temperature range from about 60K to about 10K, which can be adjusted by changing the Dy to Er ratio of the refrigerant. 29 figs.</p> <div class="credits"> <p class="dwt_author">Gschneidner, K.A. Jr.; Takeya, Hiroyuki</p> <p class="dwt_publisher"></p> <p class="publishDate">1995-07-25</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">237</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://eric.ed.gov/?q=progression&pg=6&id=EJ869605"> <span id="translatedtitle">Kinematics of Disease Progression in Bulbar <span class="hlt">ALS</span></span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p class="result-summary">The goal of this study was to investigate the deterioration of lip and jaw movements during speech longitudinally in three individuals diagnosed with bulbar amyotrophic lateral sclerosis (<span class="hlt">ALS</span>). The study was motivated by the need to understand the relationship between physiologic changes in speech movements and clinical measures of speech…</p> <div class="credits"> <p class="dwt_author">Yunusova, Yana; Green, Jordan R.; Lindstrom, Mary J.; Ball, Laura J.; Pattee, Gary L.; Zinman, Lorne</p> <p class="dwt_publisher"></p> <p class="publishDate">2010-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">238</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/biblio/503734"> <span id="translatedtitle">Bierman {ital et <span class="hlt">al</span>.}Reply:</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">reply to the Comment by C.H.Dasso et <span class="hlt">al</span>., Phys. Rev. Lett. 78,XXX(1997). A Reply to the Comment by C.H. Dasso and J. Fern{acute a}ndez-Niello. {copyright} {ital 1997} {ital The American Physical Society}</p> <div class="credits"> <p class="dwt_author">Bierman, J.D.; Chan, P.; Liang, J.F.; Kelly, M.P.; Sonzogni, A.A.; Vandenbosch, R. [Nuclear Physics Laboratory University of Washington Seattle, Washington 98195 (United States)] [Nuclear Physics Laboratory University of Washington Seattle, Washington 98195 (United States)</p> <p class="dwt_publisher"></p> <p class="publishDate">1997-05-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">239</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/21111103"> <span id="translatedtitle">Discussion: 'Congenital toxoplasmosis' by Berrébi et <span class="hlt">al</span>.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">In the roundtable that follows, clinicians discuss a study published in this issue of the Journal in light of its methodology, relevance to practice, and implications for future research. Article discussed: Berrébi A, Assouline C, Bessières M-H, et <span class="hlt">al</span>. Long-term outcome of children with congenital toxoplasmosis. Am J Obstet Gynecol 2010;203:552.e1-6. PMID:21111103</p> <div class="credits"> <p class="dwt_author">Macones, George A; McNamara, Jennifer; Wallenstein, Matthew; Squires, Kate</p> <p class="dwt_publisher"></p> <p class="publishDate">2010-12-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">240</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://euro.ecom.cmu.edu/people/faculty/mshamos/7702541.pdf"> <span id="translatedtitle">(12) United States Patent Black et <span class="hlt">al</span>.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">Alamos, New Mexico. After one test explos:ion, two atomic .bombs: were dropped on the Japanese cities of Hiroshima (6 Aug 1945) and Nagasaki (9 _:Aug 1945); the bomb dropped on - .Hiroshima was as. powerful as metric tons of TNT, that on equivalent to 22.000 metrie tOI"ll The USSR first detbnated <span class="hlt">al</span>'l atomic 1949</p> <div class="credits"> <p class="dwt_author">Shamos, Michael I.</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div id="filter_results_form" class="filter_results_form floatContainer" style="visibility: visible;"> <div style="width:100%" id="PaginatedNavigation" class="paginatedNavigationElement"> <a id="FirstPageLink" onclick='return showDiv("page_1");' href="#" title="First Page"> <img id="FirstPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.first.18x20.png" alt="First Page" /></a> <a id="PreviousPageLink" onclick='return showDiv("page_11");' href="#" title="Previous Page"> <img 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href="#">23</a> <a onClick='return showDiv("page_24");' href="#">24</a> <a onClick='return showDiv("page_25");' href="#">25</a> </span> </span> <a id="NextPageLink" onclick='return showDiv("page_14");' href="#" title="Next Page"> <img id="NextPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.next.18x20.png" alt="Next Page" /></a> <a id="LastPageLink" onclick='return showDiv("page_25.0");' href="#" title="Last Page"> <img id="LastPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.last.18x20.png" alt="Last Page" /></a> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">241</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://physics.nyu.edu/grierlab/US8791985.pdf"> <span id="translatedtitle">(12) United States Patent Grier et <span class="hlt">al</span>.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">(12) United States Patent Grier et <span class="hlt">al</span>. US008791985B2 US 8,791,985 B2 Jul. 29, 2014 (10) Patent N0.: (45) Date of Patent: (54) (75) (73) (21) (22) (86) (87) (65) (60) (51) (52) TRACKING to any disclaimer, the term ofthis patent is extended or adjusted under 35 U.S.C. 154(b) by 744 days. 12</p> <div class="credits"> <p class="dwt_author">Grier, David</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">242</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://physics.nyu.edu/grierlab/US8502132.pdf"> <span id="translatedtitle">(12) United States Patent Grier et <span class="hlt">al</span>.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">(12) United States Patent Grier et <span class="hlt">al</span>. US008502132B2 US 8,502,132 B2 Aug. 6, 2013 (10) Patent N0.: (45) Date of Patent: (54) (75) (73) (*) (21) (22) (65) (62) (60) (51) (52) MANIPULATION OF OBJECTS) Assignee: New York University, NeW York, NY (Us) Notice: Subject to any disclaimer, the term ofthis patent</p> <div class="credits"> <p class="dwt_author">Grier, David</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">243</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/doepatents/biblio/869994"> <span id="translatedtitle">Ternary Dy-Er-<span class="hlt">Al</span> magnetic refrigerants</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/doepatents">DOEpatents</a></p> <p class="result-summary">A ternary magnetic refrigerant material comprising (Dy.sub.1-x Er.sub.x)<span class="hlt">Al</span>.sub.2 for a magnetic refrigerator using the Joule-Brayton thermodynamic cycle spanning a temperature range from about 60K to about 10K, which can be adjusted by changing the Dy to Er ratio of the refrigerant.</p> <div class="credits"> <p class="dwt_author">Gschneidner, Jr., Karl A. (Ames, IA); Takeya, Hiroyuki (Ibaraki, JP)</p> <p class="dwt_publisher"></p> <p class="publishDate">1995-07-25</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">244</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/43093701"> <span id="translatedtitle">Superoutburst Photometry of <span class="hlt">AL</span> Comae Berenices</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Photometric observations obtained during the 1995 April - May superoutburst of the dwarf nova <span class="hlt">AL</span> Comae Berenices are presented. This star shows rare, large-amplitude outbursts, the last definitely seen in 1975. During the 1995 outburst, as with that of 1961, there was a sharp, two-magnitude temporary minimum in the outburst light curve at about 28 days after maximum tight. We</p> <div class="credits"> <p class="dwt_author">Steve B. Howell; James De Young; Janet A. Mattei; Grant Foster; Paula Szkody; John K. Cannizzo; Gary Walker; Erik Fierce</p> <p class="dwt_publisher"></p> <p class="publishDate">1996-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">245</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/23114496"> <span id="translatedtitle">Novel <span class="hlt">Al</span>-based FLP systems.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary"><span class="hlt">Al</span>/P based frustrated Lewis pairs (FLPs) having coordinatively unsaturated aluminium and phosphorus atoms in a single molecule were obtained on a multigram scale by hydroalumination of alkynylphosphines. Steric shielding prevented the formation of adducts and the quenching of the conflicting Lewis acidic and basic functionalities. These FLPs reacted with terminal alkynes by C-H bond cleavage with the protons bonded to phosphorus and the alkynido groups coordinated to aluminium. Alternatively, a five-membered heterocycle was formed by C?C triple bond activation. Similar heterocycles resulted from the reversible coordination of carbon dioxide. Particularly interesting is their unique propensity to react as effective ion pair receptors for the complexation of alkali metal hydrides and their capability to activate such ionic hydrides as phase transfer catalysts. Sterically less shielded compounds gave dimers via <span class="hlt">Al</span>-P interactions. These compounds are still active as masked FLPs and form complexes with carbon dioxide or phenyl isocyanate. Alternative routes gave methylene bridged <span class="hlt">Al</span>-P compounds which were also shown to coordinate CO2. Bimolecular systems exhibit similar properties. They activate terminal alkynes and isobutene or reduce CO2 to methanol and carbon monoxide. Hydroalumination of ynamines proved to be an excellent method for the generation of <span class="hlt">Al</span>/N based Lewis pairs. These compounds were shown to activate phenylethyne reversibly or to undergo insertion reactions with carbodiimide. The constitution of the latter products is determined by cooperative interactions between aluminium and nitrogen. PMID:23114496</p> <div class="credits"> <p class="dwt_author">Uhl, Werner; Würthwein, Ernst-Ulrich</p> <p class="dwt_publisher"></p> <p class="publishDate">2013-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">246</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/30138316"> <span id="translatedtitle">Die intravenöse Eisenbelastung <span class="hlt">als</span> Funktionsprobe des RES</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Zusammenfassung Intravenös injiziertes Kolloideisen wird schnell aus der Blutbahn eliminiert und im RES deponiert. Die Geschwindigkeit dieses Eisenabstroms aus dem zirkulierenden Blut in das Gewebe läßt sich am Abfall der Serumeisenkonzentration bestimmen und für einen bestimmten Zeitraum nach der Eisenapplikation <span class="hlt">als</span> Halbwertzeit angeben. Sie beträgt normalerweise 40 bis 55 Minuten, ist bei entzündlichen Alterationen und bei Hyperplasien des RES stark</p> <div class="credits"> <p class="dwt_author">I. Hoppe; W. Götte; C. Demke; E. Jahn; K. Schweikart; H. Overkamp</p> <p class="dwt_publisher"></p> <p class="publishDate">1961-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">247</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=19720000526&hterms=molten+salt+battery&qs=N%3D0%26Ntk%3DAll%26Ntx%3Dmode%2Bmatchall%26Ntt%3Dmolten%2Bsalt%2Bbattery"> <span id="translatedtitle"><span class="hlt">Al</span>/Cl2 molten salt battery</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p class="result-summary">Molten salt battery has been developed with theoretical energy density of 5.2 j/kg (650 W-h/lb). Battery, which operates at 150 C, can be used in primary mode or as rechargeable battery. Battery has aluminum anode and chlorine cathode. Electrolyte is mixture of <span class="hlt">Al</span>Cl3, NaCl, and some alkali metal halide such as KCl.</p> <div class="credits"> <p class="dwt_author">Giner, J.</p> <p class="dwt_publisher"></p> <p class="publishDate">1972-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">248</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://sigpubs.biostr.washington.edu/archive/00000160/01/3937Rickard.pdf"> <span id="translatedtitle">MEDINFO 2004 M. Fieschi et <span class="hlt">al</span>. (Eds)</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">420 MEDINFO 2004 M. Fieschi et <span class="hlt">al</span>. (Eds) Amsterdam: IOS Press © 2004 IMIA. All rights reserved the physical organization of the human body [3]. Its concept domain encom- passes anatomical entities ranging system. Our intent with the FMA is to make anatomical information available in a machine-underst</p> <div class="credits"> <p class="dwt_author">Washington at Seattle, University of</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">249</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://cisoft.usc.edu/assets/023/86281.pdf"> <span id="translatedtitle">Nada <span class="hlt">Al</span>-Alusi Torrey Pines High</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">Students Nada <span class="hlt">Al</span>-Alusi Torrey Pines High Triana Anderson Lowell High Catherine Badart Holy Names Academy Kitae Bae Torrey Pines High Marika Buchholz Louisiana School for Math, Science, and the Arts Royce Temitope Olabinjo Elkins High School Anshul Ramachandran Monta Vista High Daniel Schneller Saint Louis</p> <div class="credits"> <p class="dwt_author">Shahabi, Cyrus</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">250</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://cisoft.usc.edu/assets/023/86261.pdf"> <span id="translatedtitle">Nada <span class="hlt">Al</span>-Alusi Torrey Pines High</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">Students Nada <span class="hlt">Al</span>-Alusi Torrey Pines High Triana Anderson Lowell High Catherine Badart Holy Names Academy Kitae Bae Torrey Pines High Marika Buchholz Louisiana School for Math, Science, and the Arts Royce Temitope Olabinjo Elkins High School Anshul Ramachandran Monte Vista High Daniel Schneller Saint Louis</p> <div class="credits"> <p class="dwt_author">Shahabi, Cyrus</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">251</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://spo.nwr.noaa.gov/olo6thedition/24--Unit%2013.pdf"> <span id="translatedtitle"><span class="hlt">AL</span> ASK A SALMON alaska Salmon</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">189 <span class="hlt">AL</span> ASK A SALMON UNIT 13 alaska Salmon INTRODUCTION Pacific salmon have played an important and pivotal role in the history of Alaska. Salmon, along with mining, timber, and furs, were the keystone now, the abundant salmon resources of this region continue to shape much of the con- temporary lives</p> <div class="credits"> <p class="dwt_author"></p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">252</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/23030513"> <span id="translatedtitle">Clinical epidemiology of <span class="hlt">ALS</span> in Liguria, Italy.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">Our objective was to assess the incidence and trends of amyotrophic lateral sclerosis (<span class="hlt">ALS</span>) in Liguria, a north-west region of Italy, utilizing a prospective design. Liguria (1,615,064 residents in 2010) is the site of a multicentre-multisource prospective population based registry called LIGALS (Liguria Amyotrophic Lateral Sclerosis Registry). All incident <span class="hlt">ALS</span> cases during the period 2009-2010 were enrolled and followed up. Cases were identified using several concurrent sources. <span class="hlt">ALS</span> diagnosis was based on the revised El Escorial criteria. One hundred and four cases were enrolled, generating an annual crude incidence of 3.22/100,000 (95% CI 2.66-3.90), with a male/female ratio of 1.34. The annual standardized incidence, age and gender adjusted to the 2001 Italian population, was 2.51. At last observation on 1 March 2012, 45% of patients registered in the LIGALS had died, with a median survival of 45 months from symptoms onset. According to capture-recapture estimation, three patients were unobserved. For both genders, demographic and clinical features were collected. In conclusion, comparing these data to those of epidemiological studies with a similar prospective design, the occurrence of <span class="hlt">ALS</span> is similar. The observed crude incidence was higher compared to other Italian studies, due in part to a very careful case ascertainment and in part to a high percentage of the elderly in Liguria. PMID:23030513</p> <div class="credits"> <p class="dwt_author">Bandettini di Poggio, Monica; Sormani, Maria Pia; Truffelli, Romina; Mandich, Paola; Origone, Paola; Verdiani, Simonetta; Mantero, Vittorio; Scialò, Carlo; Schenone, Angelo; Mancardi, Giovanni Luigi; Caponnetto, Claudia</p> <p class="dwt_publisher"></p> <p class="publishDate">2013-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">253</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://darwin.biology.utah.edu/PubsHTML/PDF-Files/30.pdf"> <span id="translatedtitle">Page et <span class="hlt">al</span>. 1 POINTS IN QUESTION</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">switches; Hafner & Nadler (1988), whose data require at most two host switches out of nine speciation events (Page, 1990); and his own studies (Barker, 1991) of 11 species of rock- #12;Page et <span class="hlt">al</span>. 3 wallaby lice for which he found little evidence for cospeciation. It is hard to see how Barker arrived at his</p> <div class="credits"> <p class="dwt_author">Clayton, Dale H.</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">254</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/1996JPCM....8.1729S"> <span id="translatedtitle">Electronic conduction in `random' <span class="hlt">Al</span> - Ge films</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">Electronic transport properties have been measured for 3500 Å <span class="hlt">Al</span> - Ge films with a random microstructure. The room temperature resistivity exhibits a sharp discontinuous jump at the metal - insulator transition, allowing for the direct determination of the critical metallic fraction, 0953-8984/8/11/016/img12 vol% <span class="hlt">Al</span>. A new procedure is described for extracting values for the zero-temperature conductivity 0953-8984/8/11/016/img13 from the low-temperature conductivity data. When 0953-8984/8/11/016/img13 is extrapolated to zero as a function of <span class="hlt">Al</span> content, the value obtained for the critical aluminium fraction 0953-8984/8/11/016/img15 is in excellent agreement with the value obtained from the room temperature data. The films exhibit two transition regions below 1.2 K as the <span class="hlt">Al</span> content is decreased - a transition from the superconductivity state to the normal-metallic state, followed by a second transition from the normal-metallic state to the insulating, variable-range-hopping state. Superconducting fluctuation data taken above 1.2 K were well described using the 2D Aslamazov - Larkin and Maki - Thompson formulae; the `resistive tails' below 1.2 K are also discussed.</p> <div class="credits"> <p class="dwt_author">Shoshany, J.; Goldner, V.; Rosenbaum, R.; Witcomb, M.; McLachlan, D. S.; Palevski, A.; Karpovski, M.; Gladkikh, A.; Lereah, Y.</p> <p class="dwt_publisher"></p> <p class="publishDate">1996-03-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">255</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://faculty.kfupm.edu.sa/EE/husainm/EE%20340/Research%20Projects/Students%20Reports/3-Optical%20Fibers-%20Al%20Harbi.pdf"> <span id="translatedtitle">Optical Fiber Ziyad G. <span class="hlt">Al</span>-Harbi</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">Optical Fiber Ziyad G. <span class="hlt">Al</span>-Harbi Electrical Engineering Sr. Student King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia. Abstract- Introductions to optical fiber explaining internal reflection effect their operation. Also we will see the applications of fiber optics</p> <div class="credits"> <p class="dwt_author">Masoudi, Husain M.</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">256</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://jeannicod.ccsd.cnrs.fr/docs/00/05/35/49/PDF/ijn_00000490_00.pdf"> <span id="translatedtitle">Combating <span class="hlt">Al</span> Qaeda's Splinters: Mishandling Suicide Terrorism</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">The past three years saw more suicide attacks than the last quarter century. Most of these were religiously motivated. While most Westerners have imagined a tightly coordinated transnational terrorist organization headed by <span class="hlt">Al</span> Qaeda, it seems more likely that nations under attack face a set of largely autonomous groups and cells pursuing their own regional aims. Repeated suicide actions show</p> <div class="credits"> <p class="dwt_author">Scott Atran</p> <p class="dwt_publisher"></p> <p class="publishDate">2004-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">257</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/56496475"> <span id="translatedtitle">Microbial Bioreactor Development in the <span class="hlt">ALS</span> NSCORT</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">The NASA Specialized Center of Research and Training in Advanced Life Support (the <span class="hlt">ALS</span> NSCORT), a partnership of Alabama A & M, Howard, and Purdue Universities, was established by NASA in 2002 to develop technologies that will reduce the Equivalent System Mass (ESM) of regenerative processes within future space life-support systems. A key focus area of NSCORT research has been</p> <div class="credits"> <p class="dwt_author">Cary Mitchell; Dawn Whitaker; M. Katherine Banks; Albert J. Heber; Ronald F. Turco; Loring F. Nies; James E. Alleman; Sybil E. Sharvelle; Congna Li; Megan Heller</p> <p class="dwt_publisher"></p> <p class="publishDate">2008-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">258</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://hal.archives-ouvertes.fr/docs/00/89/02/78/PDF/hal-00890278.pdf"> <span id="translatedtitle">DER SONNENSTAND <span class="hlt">ALS</span> ZEITGEBER FR DIE BIENE</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">DER SONNENSTAND <span class="hlt">ALS</span> ZEITGEBER FÃ?R DIE BIENE La position du soleil comme indicateur de temps chez l Institut der Universitât, Frankfurt am Main SUMMARY THE ADJUSTEMENT OF THE INTERNAL CLOCK OF HONEY BEES ACCORDING TO THE POSITION OF THE SUN 1. The internal clock of honey bees can be reset, if time</p> <div class="credits"> <p class="dwt_author">Paris-Sud XI, Université de</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">259</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.unimi.it/cataloghi/ufficio_stampa/n._38_x_sito.pdf"> <span id="translatedtitle">Scott (e Amundsen) <span class="hlt">al</span> Polo Sud,</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">pag. 2 Scott (e Amundsen) <span class="hlt">al</span> Polo Sud, cento anni dopo di Nicoletta Brazzelli pag. 4 pag. 6 Entra motorie di Sandro Saronni e Stefano Benedini pag. 10 La cooperazione internazionale allo sviluppo in un Cominelli, Giovanni de Berti, e Albert Henke Misurare la moderna agorà virtuale di Luigi Curini, Stefano M</p> <div class="credits"> <p class="dwt_author">De Cindio, Fiorella</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">260</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://faculty.kfupm.edu.sa/EE/husainm/EE%20340/Research%20Projects/Students%20Reports/6-%20Railguns-%20Al-Khaldi.pdf"> <span id="translatedtitle">The Rail Gun Muad <span class="hlt">Al</span> Khaldi</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">The Rail Gun Muad <span class="hlt">Al</span> Khaldi Department of Electrical Engineering King Fahd University of Petroleum and Minerals Abstract- The rail gun is one of promising ways of launching projectiles. Recently, many. In this project, I am going to investigate the construction of electromagnetic rail guns, the way the function</p> <div class="credits"> <p class="dwt_author">Masoudi, Husain M.</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div id="filter_results_form" class="filter_results_form floatContainer" style="visibility: visible;"> <div style="width:100%" id="PaginatedNavigation" class="paginatedNavigationElement"> <a id="FirstPageLink" onclick='return showDiv("page_1");' href="#" title="First Page"> <img id="FirstPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.first.18x20.png" alt="First Page" /></a> <a id="PreviousPageLink" onclick='return showDiv("page_12");' href="#" title="Previous Page"> <img id="PreviousPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.previous.18x20.png" alt="Previous Page" /></a> <span id="PageLinks" class="pageLinks"> <span> <a onClick='return showDiv("page_1");' 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showDiv("page_15");' href="#" title="Next Page"> <img id="NextPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.next.18x20.png" alt="Next Page" /></a> <a id="LastPageLink" onclick='return showDiv("page_25.0");' href="#" title="Last Page"> <img id="LastPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.last.18x20.png" alt="Last Page" /></a> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">261</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.mi.informatik.uni-frankfurt.de/research/phdtheses/rfischlin.dissertation.2002.ps"> <span id="translatedtitle">Das Faktorisierungsrepr asentationsproblem <span class="hlt">als</span> Basis kryptographischer Protokolle</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">Wolfgang Goethe-Universit at in Frankfurt am Main | von Roger Fischlin aus O#11;enbach am Main | Frankfurt am Main 2002 D F 1 #12; ii Vom Fachbereich Mathematik der Johann Wolfgang Goethe-Universit at <span class="hlt">als</span> Mitarbeit von 1998 bis 2001 in der Gruppe von Prof. Dr.Schnorr am Fachbereich Ma- thematik der J.W.Goethe</p> <div class="credits"> <p class="dwt_author"></p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">262</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://web.mit.edu/bigdata-priv/pdf/Salil-Vadhan.pdf"> <span id="translatedtitle">Current Developments in Differen1<span class="hlt">al</span> Privacy</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">­ Not necessarily by adding noise to answer! · Good for Big Data: more u1lity and more] · clustering [BDMN05,NRS07] · social network analysis [HLMJ09,GRU11,KRSY11,KNRS13,BBDS13,KPRU12] · ... See Simons Ins1tute Workshop on Big Data & Differen1<span class="hlt">al</span></p> <div class="credits"> <p class="dwt_author">Oliva, Aude</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">263</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://files.eric.ed.gov/fulltext/ED542783.pdf"> <span id="translatedtitle">U-<span class="hlt">ALS</span>: A Ubiquitous Learning Environment</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p class="result-summary">The diffusion of the use of the learning virtual environments presents a great potential for the development of an application which meet the necessities in the education area. In view of the importance of a more dynamic application and that can adapt itself continuously to the students' necessities, the "U-<span class="hlt">ALS</span>" (Ubiquitous Adapted Learning…</p> <div class="credits"> <p class="dwt_author">Piovesan, Sandra Dutra; Passerino, Liliana Maria; Medina, Roseclea Duarte</p> <p class="dwt_publisher"></p> <p class="publishDate">2012-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">264</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.springerlink.com/index/g560036739k63n82.pdf"> <span id="translatedtitle">Hautdrüsen <span class="hlt">als</span> träger der pilzsymbiose bei ambrosiakäfern</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">1.Die Ambrosiapilze holzbrütender Ipiden und Platypodiden überwintern in Form von Oidien und Sproßzellen in Ansammlungen von Hautdrüsensekreten dieser Käfer. Die Lokalisation der symbiontischen Pike ist bei den einzelnen Ambrosiakäfergruppen verschieden. Die Weibchen der Trypodendron-Arten besitzen <span class="hlt">als</span> Symbiontenwohnstätten schlauchförmige, unter der Hautduplikatur am Hinterrande des Pronotums gelegene Öldrüsen, die Weibchen von Xylosandrus germanus und von Anisandrus dispar überwintern ihre Pilze in</p> <div class="credits"> <p class="dwt_author">H. Francke-Grosmann</p> <p class="dwt_publisher"></p> <p class="publishDate">1956-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">265</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2005AcPPA.107..776F"> <span id="translatedtitle">Defects Associated with Nanostructures in <span class="hlt">Al</span>ZnMg and <span class="hlt">Al</span>Cu(Mg) Alloys</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">The present work reports on a positron annihilation study addressing the structural and chemical characterization of solute aggregates containing open volumes (vacancies and/or misfit regions at precipitate-matrix interfaces) in <span class="hlt">Al</span>ZnMg, <span class="hlt">Al</span>Cu, and <span class="hlt">Al</span>CuMg alloys. High resolution transmission electron microscopy results for selected ageing conditions are also presented. Two main points are discussed: (i) differentiation of the origin of hardening during artificial ageing between the <span class="hlt">Al</span>ZnMg and <span class="hlt">Al</span>Cu(Mg) alloy systems; (ii) structural origin of secondary ageing at low temperature, after a few minutes of high temperature exposure. It is shown that in <span class="hlt">Al</span>ZnMg alloys hardening at a high temperature is concomitant with the loss of coherency; on the contrary, in <span class="hlt">Al</span>Cu(Mg) alloys hardening is associated with coherent structures. Positron lifetime and coincidence Doppler broadening data taken during secondary ageing indicate that the residual solute supersaturation leads to the formation of coherent Zn-Mg-v (or Cu-Mg-v) aggregates.</p> <div class="credits"> <p class="dwt_author">Ferragut, R.</p> <p class="dwt_publisher"></p> <p class="publishDate">2005-05-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">266</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=19790025135&hterms=Nazarova&qs=N%3D0%26Ntk%3DAll%26Ntx%3Dmode%2Bmatchall%26Ntt%3DE.%2BNazarova"> <span id="translatedtitle">Some TEM observations of <span class="hlt">Al</span>2O3 scales formed on NiCr<span class="hlt">Al</span> alloys</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p class="result-summary">The microstructural development of <span class="hlt">Al</span>2O3 scales on NiCr<span class="hlt">Al</span> alloys has been examined by transmission electron microscopy. Voids were observed within grains in scales formed on a pure NiCr<span class="hlt">Al</span> alloy. Both voids and oxide grains grew measurably with oxidation time at 1100 C. The size and amount of porosity decreased towards the oxide-metal growth interface. The voids resulted from an excess number of oxygen vacancies near the oxidemetal interface. Short-circuit diffusion paths were discussed in reference to current growth stress models for oxide scales. Transient oxidation of pure, Y-doped, and Zr-doped NiCr<span class="hlt">Al</span> was also examined. Oriented alpha-(<span class="hlt">Al</span>, Cr)2O3 and Ni(<span class="hlt">Al</span>, Cr)2O4 scales often coexisted in layered structures on all three alloys. Close-packed oxygen planes and directions in the corundum and spinel layers were parallel. The close relationship between oxide layers provided a gradual transition from initial transient scales to steady state <span class="hlt">Al</span>2O3 growth.</p> <div class="credits"> <p class="dwt_author">Smialek, J.; Gibala, R.</p> <p class="dwt_publisher"></p> <p class="publishDate">1979-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">267</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=19800028901&hterms=scale+corrosion&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D40%26Ntt%3Dscale%2Bcorrosion"> <span id="translatedtitle">Some TEM observations of <span class="hlt">Al</span>2O3 scales formed on NiCr<span class="hlt">Al</span> alloys</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p class="result-summary">The microstructural development of <span class="hlt">Al</span>2O3 scales on NiCr<span class="hlt">Al</span> alloys has been examined by transmission electron microscopy. Voids have been observed within grains in scales formed on a pure NiCr<span class="hlt">Al</span> alloy. Both voids and oxide grains grew measurably with oxidation time at 1100 C. The size and amount of porosity decreased towards the oxide-metal growth interface. It was postulated that the voids resulted from an excess number of oxygen vacancies near the oxide-metal interface. Short-circuit diffusion paths were discussed in reference to current growth stress models for oxide scales. Transient oxidations of pure, Y-doped, and Zr-doped NiCr<span class="hlt">Al</span> was also examined. Oriented alpha-(<span class="hlt">Al</span>,Cr)2O3 and Ni(<span class="hlt">Al</span>,Cr)2O4 scales often coexisted in layered structures on all three alloys. Close-packed oxygen planes and directions in the corundum and spinel layers were parallel. The close relationships between oxide layers provided a gradual transition from initial transient scales to steady state <span class="hlt">Al</span>2O3 growth.</p> <div class="credits"> <p class="dwt_author">Smialek, J.; Gibala, R.</p> <p class="dwt_publisher"></p> <p class="publishDate">1979-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">268</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/23924708"> <span id="translatedtitle">High-performance nonvolatile <span class="hlt">Al/Al</span>O(x)/CdTe:Sb nanowire memory device.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">Here we demonstrate a room temperature processed nonvolatile memory device based on an <span class="hlt">Al/Al</span>O(x)/CdTe:Sb nanowire (NW) heterojunction. Electrical analysis shows an echelon hysteresis composed of a high-resistance state (HRS) and a low-resistance state (LRS), which can allow it to write and erase data from the device. The conductance ratio is as high as 10?, with a retention time of 3 × 10? s. Moreover, the SET voltages ranged from +6 to +8 V, whilst the RESET voltage ?0 V. In addition, flexible memory nano-devices on PET substrate with comparable switching performance at bending condition were fabricated. XPS analysis of the <span class="hlt">Al/Al</span>O(x)/CdTe:Sb NW heterojunction after controlled Ar? bombardment reveals that this memory behavior is associated with the presence of ultra-thin <span class="hlt">Al</span>O(x) film. This <span class="hlt">Al/Al</span>O(x)/CdTe:Sb NW heterojunction will open up opportunities for new memory devices with different configurations. PMID:23924708</p> <div class="credits"> <p class="dwt_author">Xie, Chao; Nie, Biao; Zhu, Long; Zeng, Long-Hui; Yu, Yong-Qiang; Wang, Xian-He; Fang, Qun-Ling; Luo, Lin-Bao; Wu, Yu-Cheng</p> <p class="dwt_publisher"></p> <p class="publishDate">2013-09-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">269</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/biblio/896194"> <span id="translatedtitle">Abrasive wear behavior of Ni<span class="hlt">Al</span> and Ni<span class="hlt">Al</span>-TiB2 composites</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">Abrasive wear of Ni<span class="hlt">Al</span> and Ni<span class="hlt">Al</span> with 10, 20, and 40 vol.% TiB2 has been investigated using particles of different types and sizes. The addition of TiB2 as a particulate reinforcement to Ni<span class="hlt">Al</span> increases the hardness of the composite with respect to Ni<span class="hlt">Al</span>, and reduces the wear rate at all volume fractions on garnet and <span class="hlt">Al</span>2O3 abrasives. Abrasion on SiC resulted in a minimum of the wear rate for the composite with 20% TiB2for most conditions. The composite with 40% TiB2consistently exhibited wear rates higher than the other composites when abraded on SiC. The only instance when the Ni<span class="hlt">Al</span>?40% TiB2 composite had a lower wear rate was when it was abraded on 16 and 37 mm SiC particles. The Ni<span class="hlt">Al</span>?TiB2 composite serves as a model system for studying the effect of reinforcement volume fraction on composite wear behavior and is discussed in terms of a composite wear model developed by Axe?n and Jacobson. q1999 Published by Elsevier Science S.A. All rights reserved.</p> <div class="credits"> <p class="dwt_author">Hawk, Jeffrey A.; Alman, David E.</p> <p class="dwt_publisher"></p> <p class="publishDate">1999-04-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">270</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/21880027"> <span id="translatedtitle">An <span class="hlt">Al</span>-inducible MATE gene is involved in external detoxification of <span class="hlt">Al</span> in rice.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">A number of plant species, including rice, secretes citrate from roots in response to <span class="hlt">Al</span> stress. Here we characterized the functions of a gene, OsFRDL4 (Os01g0919100) that belongs to the multidrug and toxic compound extrusion (MATE) family in rice (Oryza sativa). Heterologous expression in Xenopus oocyte showed that the OsFRDL4 protein was able to transport citrate and was activated by <span class="hlt">Al</span>. The expression level of the OsFRDL4 gene in roots was very low in the absence of <span class="hlt">Al</span>, but was greatly enhanced by <span class="hlt">Al</span> after short exposure. Furthermore, the OsFRDL4 expression was regulated by ART1, a C2H2-type zinc finger transcription factor for <span class="hlt">Al</span> tolerance. Transient expression of OsFRDL4 in onion epidermal cells showed that it localized to the plasma membrane. Immunostaining showed that OsFRDL4 was localized in all cells in the root tip. These expression patterns and cell specificity of localization of OsFRDL4 are different from other MATE members identified previously. Knockout of OsFRDL4 resulted in decreased <span class="hlt">Al</span> tolerance and decreased citrate secretion compared with the wild-type rice, but did not affect citrate concentration in the xylem sap. Furthermore, there is a positive correlation between OsFRDL4 expression level and the amount of citrate secretion in rice cultivars that are differing in <span class="hlt">Al</span> tolerance. Taken together, our results show that OsFRDL4 is an <span class="hlt">Al</span>-induced citrate transporter localized at the plasma membrane of rice root cells and is one of the components of high <span class="hlt">Al</span> tolerance in rice. PMID:21880027</p> <div class="credits"> <p class="dwt_author">Yokosho, Kengo; Yamaji, Naoki; Ma, Jian Feng</p> <p class="dwt_publisher"></p> <p class="publishDate">2011-12-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">271</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2010AIPC.1251..300A"> <span id="translatedtitle">Precipitation mechanism of <span class="hlt">Al</span>-substituted tobermorite using hydrothermal reaction</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">We examined the addition of different crystal phases of alumina (?-<span class="hlt">Al</span>2O3, ?-<span class="hlt">Al</span>2O3) to slurries consisting of quartz and slaked lime for synthesis of <span class="hlt">Al</span>-substituted tobermorite. XRD results showed that <span class="hlt">Al</span>-substituted tobermorite formed after the reaction. It was clear that two kinds of <span class="hlt">Al</span>-substituted tobermorite synthesized using different alumina crystal phases shows different morphologies. The difference in the reactivity of the <span class="hlt">Al</span>2O3 had an influence in the hydrothermal reaction environment. The coordination number and chemical bonding-state of <span class="hlt">Al</span> caused the different morphology of the tobermorite.</p> <div class="credits"> <p class="dwt_author">Abe, Kazuki; Maeda, Hirotaka; Ishida, Emile H.</p> <p class="dwt_publisher"></p> <p class="publishDate">2010-11-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">272</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2014ApPhL.105n1604Q"> <span id="translatedtitle">A crystalline oxide passivation for <span class="hlt">Al</span>2O3/<span class="hlt">Al</span>GaN/GaN</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">In situ X-ray photoelectron spectroscopy and low energy electron diffraction are performed to study the formation of a crystalline oxide on the <span class="hlt">Al</span>GaN surface. The oxidation of the <span class="hlt">Al</span>GaN surface is prepared by annealing and remote N2 + O2 plasma pretreatments resulting in a stable crystalline oxide. The impact of the oxide on the interface state density is studied by capacitance voltage (C-V) measurements. It is found that a remote plasma exposure at 550 °C shows the smallest frequency dispersion. Crystalline oxide formation may provide a novel passivation method for high quality <span class="hlt">Al</span>GaN/GaN devices.</p> <div class="credits"> <p class="dwt_author">Qin, Xiaoye; Dong, Hong; Kim, Jiyoung; Wallace, Robert M.</p> <p class="dwt_publisher"></p> <p class="publishDate">2014-10-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">273</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=19870044771&hterms=Al2O3&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D70%26Ntt%3DAl2O3"> <span id="translatedtitle">Adherent <span class="hlt">Al</span>2O3 scales formed on undoped NiCr<span class="hlt">Al</span> alloys</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p class="result-summary">Changes in the spalling behavior of <span class="hlt">Al</span>2O3 scales formed on an undoped NiCr<span class="hlt">Al</span> alloy are described. Two samples of Ni-15Cr-13<span class="hlt">Al</span> (wt pct), one a control and the other sanded, were subjected to 25 oxidation cycles. It is observed that adherent scales formed on the sanded sample; however, the control sample had speckled, spalled scales. The data reveal that the adherent scales are caused by repeated removal of surface layers after each oxidation cycle. It is determined that interfacial segregation of sulfur influences spallation and sulfur removal increases bonding. The effect of moisture on scale adhesions is investigated.</p> <div class="credits"> <p class="dwt_author">Smialek, James L.</p> <p class="dwt_publisher"></p> <p class="publishDate">1987-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">274</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2015MMTB...46..485V"> <span id="translatedtitle">Density of Low-Temperature KF-<span class="hlt">Al</span>F3 Aluminum Baths with <span class="hlt">Al</span>2O3 and <span class="hlt">Al</span>PO4 Additives</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">The density of the KF-<span class="hlt">Al</span>F3 melts of various KF and <span class="hlt">Al</span>F3 ratio with <span class="hlt">Al</span>2O3 and <span class="hlt">Al</span>PO4 addition has been measured using the Archimedean method. On the basis of the obtained density data the molar volumes of the melts were calculated. These molar volumes decrease with concentration of <span class="hlt">Al</span>2O3 or <span class="hlt">Al</span>PO4. In the system containing <span class="hlt">Al</span>PO4, the relation between cryolite ratios (CRs) vs slopes of molar volume trend lines was identified with excellent correlation factor of R 2 = 0.9844, while in the system containing <span class="hlt">Al</span>2O3 a discontinuity at CR = 2.5 can be observed.</p> <div class="credits"> <p class="dwt_author">Vasková, Zuzana; Kontrík, Martin; Mlynáriková, Jarmila; Bo?a, Miroslav</p> <p class="dwt_publisher"></p> <p class="publishDate">2015-02-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">275</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/40268099"> <span id="translatedtitle">Enthalpies of formation of the <span class="hlt">Al</span>–Ni intermetallic compounds</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">The <span class="hlt">Al</span>–Ni system has been investigated by direct reaction calorimetry at high temperatures. Enthalpies of formation of the intermetallic compounds <span class="hlt">Al</span>Ni3, <span class="hlt">Al</span>Ni, <span class="hlt">Al</span>3Ni2, and <span class="hlt">Al</span>3Ni were determined and compared with the available experimental values based on calorimetric and emf measurements and with the calculated values from theoretical models. X-ray powder diffraction (XRD) and electron probe microanalysis (EPMA) were used to</p> <div class="credits"> <p class="dwt_author">F. Z Chrifi-Alaoui; M Nassik; K Mahdouk; J. C Gachon</p> <p class="dwt_publisher"></p> <p class="publishDate">2004-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">276</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/20020993"> <span id="translatedtitle"><span class="hlt">Al</span>2O3 Insulated-Gate Structure for <span class="hlt">Al</span>GaN\\/GaN Heterostructure Field Effect Transistors Having Thin <span class="hlt">Al</span>GaN Barrier Layers</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">An <span class="hlt">Al</span>2O3 insulated-gate (IG) structure was utilized for controlling the surface potential and suppressing the gate leakage in <span class="hlt">Al</span>0.2Ga0.8N\\/GaN heterostructure field effect transistors (HFETs) having thin <span class="hlt">Al</span>GaN barrier layers (less than 10 nm). In comparison with the Schottky-gate devices, the <span class="hlt">Al</span>2O3 IG device showed successful gate control of drain current up to VGS = +4 V without leakage problems. The</p> <div class="credits"> <p class="dwt_author">Tamotsu Hashizume; Sanguan Anantathanasarn; Noboru Negoro; Eiichi Sano; Hideki Hasegawa; Kazuhide Kumakura; Toshiki Makimoto</p> <p class="dwt_publisher"></p> <p class="publishDate">2004-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">277</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://research.chemistry.ohio-state.edu/allen/files/2011/09/15.pdf"> <span id="translatedtitle">Characterization of Ultrathin Films of -<span class="hlt">Al</span>2O3 and the Chemistry of 1,3-Butadiene on Ni<span class="hlt">Al</span>(001) and -<span class="hlt">Al</span>2O3</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">Characterization of Ultrathin Films of -<span class="hlt">Al</span>2O3 and the Chemistry of 1,3-Butadiene on Ni<span class="hlt">Al</span>(001) and -<span class="hlt">Al</span>2O3 Michelle M. Ivey, Kathryn A. Layman, Armen Avoyan, Heather C. Allen, and John C. HemmingerVine, California 92697 ReceiVed: October 3, 2002; In Final Form: March 27, 2003 Ultrathin films of -<span class="hlt">Al</span>2O3 grown</p> <div class="credits"> <p class="dwt_author"></p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">278</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://irvinginstitute.columbia.edu/2012/pdf/prize4life_press_release_v13_ccaNrc.pdf"> <span id="translatedtitle">THE NEXT <span class="hlt">ALS</span> BREAKTHROUGH COULD BE YOURS Prize4Life Awards Prizes for <span class="hlt">ALS</span> Biomarker Challenge to InnoCentive</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">THE NEXT <span class="hlt">ALS</span> BREAKTHROUGH COULD BE YOURS Prize4Life Awards Prizes for <span class="hlt">ALS</span> Biomarker Challenge dedicated to reaching breakthroughs in effective treatments for Amyotrophic Lateral Sclerosis (<span class="hlt">ALS</span> handheld technologies capable #12;THE NEXT <span class="hlt">ALS</span> BREAKTHROUGH COULD BE YOURS of taking these highly sensitive</p> <div class="credits"> <p class="dwt_author">Grishok, Alla</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">279</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.isfh.de/institut_solarforschung/files/35ieee_schmidt.pdf"> <span id="translatedtitle">SILICON SURFACE PASSIVATION BY ULTRATHIN <span class="hlt">Al</span>2O3 FILMS AND <span class="hlt">Al</span>2O3/SiNx STACKS</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">SILICON SURFACE PASSIVATION BY ULTRATHIN <span class="hlt">Al</span>2O3 FILMS AND <span class="hlt">Al</span>2O3/SiNx STACKS Jan Schmidt, Boris Veith Ohrberg 1, 31860 Emmerthal, Germany ABSTRACT We show that aluminum oxide (<span class="hlt">Al</span>2O3) layers depo- sited thickness if the <span class="hlt">Al</span>2O3 films are</p> <div class="credits"> <p class="dwt_author"></p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">280</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://dept.lamar.edu/zhanhu/publication/PANI-Al2O3_JMC.pdf"> <span id="translatedtitle">Electrical and dielectric properties of polyaniline<span class="hlt">Al</span>2O3 nanocomposites derived from various <span class="hlt">Al</span>2O3 nanostructures</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">Electrical and dielectric properties of polyaniline­<span class="hlt">Al</span>2O3 nanocomposites derived from various <span class="hlt">Al</span>2O303908j Four <span class="hlt">Al</span>2O3 nanostructures (i.e. nanofiber, nanoplatelet, nanorod and nanoflake) have been, polyaniline (PANI) nanocomposites incorporating these four <span class="hlt">Al</span>2O3 nanostructures have been fabricated using</p> <div class="credits"> <p class="dwt_author">Guo, John Zhanhu</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div id="filter_results_form" class="filter_results_form floatContainer" 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</div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">281</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.uramamurthy.com/papers/bmm150.pdf"> <span id="translatedtitle">Franklin et <span class="hlt">al</span>., The Role of Consciousness in Memory 2005 Franklin et <span class="hlt">al</span>. http//:www.brains-minds-media.org</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">Franklin et <span class="hlt">al</span>., The Role of Consciousness in Memory © 2005 Franklin et <span class="hlt">al</span>. http//:www.brains et <span class="hlt">al</span>., The Role of Consciousness in Memory © 2005 Franklin et <span class="hlt">al</span>. http//:www.brains-minds-media.org 1 The Role of Consciousness in Memory Stan Franklin1* , Bernard J. Baars2 , Uma Ramamurthy1</p> <div class="credits"> <p class="dwt_author">Ramamurthy, Uma</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">282</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.gpo.gov:80/fdsys/pkg/FR-2011-11-17/pdf/2011-29656.pdf"> <span id="translatedtitle">76 FR 71355 - United States et <span class="hlt">al</span>. v. Blue Cross and Blue Shield of Montana, Inc. et <span class="hlt">al</span>.; Proposed Final...</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.gpo.gov/fdsys/browse/collection.action?collectionCode=FR">Federal Register 2010, 2011, 2012, 2013</a></p> <p class="result-summary">...JUSTICE Antitrust Division United States et <span class="hlt">al</span>. v. Blue Cross and Blue Shield of Montana, Inc. et <span class="hlt">al</span>.; Proposed Final Judgment...Montana, Billings Division, in United States et <span class="hlt">al</span>. v. Blue Cross and Blue Shield of Montana, Inc. et <span class="hlt">al</span>.,...</p> <div class="credits"> <p class="dwt_author"></p> <p class="dwt_publisher"></p> <p class="publishDate">2011-11-17</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">283</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2013JaJAP..52hJA07N"> <span id="translatedtitle">Self-Separation of Sublimation-Grown <span class="hlt">Al</span>N with <span class="hlt">Al</span>SiN Buffer Layer</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary"><span class="hlt">Al</span>N was grown by a sublimation method on 6H-SiC. We found the grown <span class="hlt">Al</span>N layer is easily separated from the substrate when Si powder is added to the <span class="hlt">Al</span>N source powder. The formation of <span class="hlt">Al</span>SiN layer with the Si content of 15% at the <span class="hlt">Al</span>N/6H-SiC interface was confirmed by energy-dispersive X-ray spectroscopy (EDS) and X-ray diffraction (XRD). This <span class="hlt">Al</span>SiN layer causes the separation of <span class="hlt">Al</span>N.</p> <div class="credits"> <p class="dwt_author">Nishino, Katsushi; Nakauchi, Jun; Hayashi, Kotaro; Tsukihara, Masashi</p> <p class="dwt_publisher"></p> <p class="publishDate">2013-08-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">284</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3626945"> <span id="translatedtitle">Fabrication of Fe-<span class="hlt">Al</span> nanoparticles by selective oxidation of Fe-<span class="hlt">Al</span> thin films</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p class="result-summary">The possibility of a new technique for fabricating nanoparticles from thin films using selective oxidation in an atmosphere mixture of water vapor and hydrogen was investigated. Fe-5wt.%<span class="hlt">Al</span> films were RF-sputtered and annealed in the atmosphere mixture at 900°C for up to 200 min, in order to oxidize aluminum selectively. Thermodynamics simulation showed that temperatures exceeding 800°C are necessary to prevent iron from being oxidized, as confirmed by the depth profile of XPS. As the annealing time increased, the morphology of the 200-nm Fe-<span class="hlt">Al</span> films changed from the continuous to the discontinuous type; thus, particulate Fe-<span class="hlt">Al</span> films formed after 100 min. The particulate 10- to 100-nm Fe-<span class="hlt">Al</span> films showed super-paramagnetic behavior after the oxidation. Thus, a new technique for fabricating nanoparticles was successfully introduced using selective oxidation. PMID:23547781</p> <div class="credits"> <p class="dwt_author"></p> <p class="dwt_publisher"></p> <p class="publishDate">2013-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">285</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://dspace.mit.edu/handle/1721.1/65719"> <span id="translatedtitle">The evolution of <span class="hlt">Al</span>-Azhar Street, <span class="hlt">Al</span>-Qahira, Egypt</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">The historic quarter of Cairo, <span class="hlt">al</span>-Qahira, is going through a period intense transformation that is threatening the physical environment as well as the social and economic fabric of the city. The transformations taking place ...</p> <div class="credits"> <p class="dwt_author">Elkatsha, Markus Fawzy Fahmy</p> <p class="dwt_publisher"></p> <p class="publishDate">2000-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">286</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=19720050230&hterms=molten+salt+battery&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D10%26Ntt%3Dmolten%2Bsalt%2Bbattery"> <span id="translatedtitle">Rechargeable <span class="hlt">Al</span>/Cl2 battery with molten <span class="hlt">Al</span>Cl4/-/ electrolyte.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p class="result-summary">A molten salt system based on <span class="hlt">Al</span>- and Cl2 carbon electrodes, with an <span class="hlt">Al</span>Cl3 alkali chloride eutectic as electrolyte, offers promise as a rechargeable, high energy density battery which can operate at a relatively low temperature. Electrode kinetic studies showed that the electrode reactions at the <span class="hlt">Al</span> anode were rapid and that the observed passivation phenomena were due to the formation at the electrode surface of a solid salt layer resulting from concentration changes on anodic or cathodic current flow. It was established that carbon electrodes were intrinsically active for chlorine reduction in <span class="hlt">Al</span>Cl3-alkali chloride melts. By means of a rotating vitreous carbon disk electrode, the kinetic parameters were determined.</p> <div class="credits"> <p class="dwt_author">Holleck, G. L.; Giner, J.; Burrows, B.</p> <p class="dwt_publisher"></p> <p class="publishDate">1972-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">287</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/15941115"> <span id="translatedtitle">Oddities in Kirkpatrick, et <span class="hlt">al.'s</span> study of children of lesbian mothers.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">Kirkpatrick, et <span class="hlt">al.'s</span> 1976 study of what happened to 20 lesbians' children has received considerable attention, apparently later being matched with 20 heterosexuals' children. In 2004, Kirkpatrick generally acknowledged Schumm's caution that her findings are less impressive than are needed, yet, Kirkpatrick stated her "early findings have been reinforced" and that "no evidence of differences in the children grouped by the mother's sexual orientation" have been documented by subsequent research. Close examination of the data of these studies indicates that children from 13 lesbian mothers were compared with children from 13 divorced heterosexuals. Further, there are contradictions between the published reports regarding the nature of samples and various findings. Analysis of Kirkpatrick, et <span class="hlt">al.'s</span> study suggests that children do less well when raised by homosexual parents. PMID:15941115</p> <div class="credits"> <p class="dwt_author">Cameron, Paul</p> <p class="dwt_publisher"></p> <p class="publishDate">2005-04-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">288</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/biblio/1007835"> <span id="translatedtitle">Interdiffusion in the Mg-<span class="hlt">Al</span> system and Intrinsic Diffusion in (<span class="hlt">Al</span>3Mg2) Phase</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">Increasing use and development of lightweight Mg-alloys have led to the desire for more fundamental research in and understanding of Mg-based systems. As a strengthening component, <span class="hlt">Al</span> is one of the most important and common alloying elements for Mg-alloys. In this study, solid-to-solid diffusion couple techniques were employed to examine the interdiffusion between pure Mg and <span class="hlt">Al</span>. Diffusion anneals were carried out at 300 , 350 , and 400 C for 720, 360, and 240 hours, respectively. Optical and scanning electron microscopies (SEM) were employed to observe the formation of the intermetallics -<span class="hlt">Al</span>12Mg17 and -<span class="hlt">Al</span>3Mg2, but not -phase. Concentration profiles were determined using X-ray energy dispersive spectroscopy (XEDS). The growth constants and activation energies were determined for each intermetallic phase.</p> <div class="credits"> <p class="dwt_author">Brennan, Sarah [University of Central Florida; Bermudez, Katrina [University of Central Florida; Kulkarni, Nagraj S [ORNL; Sohn, Yong Ho [University of Central Florida</p> <p class="dwt_publisher"></p> <p class="publishDate">2011-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">289</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=19930070119&hterms=Al2O3&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D30%26Ntt%3DAl2O3"> <span id="translatedtitle">Fabrication and properties of functionally graded Ni<span class="hlt">Al/Al</span>2O3 composites</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p class="result-summary">A modified sedimentation process was used in the production of a functionally gradient material (FGM), Ni<span class="hlt">Al/Al</span>2O3. A simple finite element model was used to guide our design and fabrication efforts by estimating residual stress states as a function of composite structure. This approach could lead to tailored designs that enhance or avoid specific residual stress states. Thermal cycling tests were factored into the model to predict time dependent or steady-state internal temperature and stress profiles. Four-point bend tests were conducted to establish the mechanical load-displacement behavior of a single interlayer FGM at room temperature, 800 and 1000 K. Room temperature bend strength of the FGM was 3-4 times that of the base Ni<span class="hlt">Al</span>. At elevated temperatures, composite fracture occurred in a gradual, noncatastrophic mode involving Ni<span class="hlt">Al</span> retardation of a succession of cracks originating in the alumina face.</p> <div class="credits"> <p class="dwt_author">Miller, D. P.; Lannutti, J. J.; Noebe, R. D.</p> <p class="dwt_publisher"></p> <p class="publishDate">1993-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">290</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=19880043042&hterms=Al2O3&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D70%26Ntt%3DAl2O3"> <span id="translatedtitle">Adherent <span class="hlt">Al</span>2O3 scales produced on undoped NiCr<span class="hlt">Al</span> alloys</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p class="result-summary">Repeated oxidation and polishing of high purity Ni-15Cr-13<span class="hlt">Al</span> has dramatically changed its cyclic oxidation behavior from nonadherent to adherent. No apparent change in scale phase, morphology or interface structure occurred during this transition, dismissing any mechanism based on pegging, vacancy sink, or growth stress. The principle change that did occur was a reduction in the sulfur content from 10 ppmw to 3 ppmw after 25 cycles at 1120 C. These observations are used to support the model of <span class="hlt">Al</span>2O3 scale adherence put forth by Smeggil et <span class="hlt">al</span>. which claims that <span class="hlt">Al</span>2O3 scale spallation occurs due to sulfur segregation and bond deterioration at the oxide-metal interface.</p> <div class="credits"> <p class="dwt_author">Smialek, James L.</p> <p class="dwt_publisher"></p> <p class="publishDate">1986-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">291</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/servlets/purl/6955311"> <span id="translatedtitle">Accurate interatomic potentials for Ni, <span class="hlt">Al</span> and Ni/sub 3/<span class="hlt">Al</span></span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">To obtain meaningful results from atomistic simulations of materials, the interatomic potentials must be capable of reproducing the thermodynamic properties of the system of interest. Pairwise potentials have known deficiencies that make them unsuitable for quantitative investigations of defective regions such as crack tips and free surfaces. Daw and Baskes (Phys. Rev. B 29, 6443 (1984)) have shown that including a local ''volume'' term for each atom gives the necessary many-body character without the severe computational dependence of explicit n-body potential terms. Using a similar approach, we have fit an interatomic potential to the Ni/sub 3/<span class="hlt">Al</span> alloy system. This potential can treat diatomic Ni/sub 2/, diatomic <span class="hlt">Al</span>/sub 2/, fcc Ni, fcc <span class="hlt">Al</span> and L1/sub 2/ Ni/sub 3/<span class="hlt">Al</span> on an equal footing. Details of the fitting procedure are presented, along with the calculation of some properties not included in the fit.</p> <div class="credits"> <p class="dwt_author">Voter, A.F.; Chen, Shao Ping</p> <p class="dwt_publisher"></p> <p class="publishDate">1986-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">292</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2011JPhCS.325a2023R"> <span id="translatedtitle">Antiferromagnetic behaviour of Tb2<span class="hlt">Al</span> alloy</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">The structural, thermal and magnetic properties ol the Tb2<span class="hlt">Al</span> alloy have been investigated by AC/DC magnetic susceptibility, specific heat, X-ray and neutron diffraction measurements. DC and AC-magnetic susceptibility results are consistent with an AFM order at TN = 52 K. The specific heat data show a lambda anomaly associated to the magnetic transition with a peak at 52 K (cord = 99 J/molTbK). The analysis of thermodiffractograms of neutron diffraction patterns indicates that, below the ordering temperature, the magnetic reflections can be indexed with a commensurate lattice related to the crystallographic cell (Pmna) by a propagation vector k = (1/2, 1/2, 1/2). The results are compared with those reported for other magnetic rare earth alloys of R2<span class="hlt">Al</span>-type (with R = Nd, Gd and Dy).</p> <div class="credits"> <p class="dwt_author">Rojas, D. P.; André, G.; Rodríguez Fernández, J.; Sánchez Marcos, J.; Fernández Barquín, L.; Echevarria, C.</p> <p class="dwt_publisher"></p> <p class="publishDate">2011-10-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">293</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/1983JAP....54.3172R"> <span id="translatedtitle">Interdiffusion in ? phase Cu-<span class="hlt">Al</span> alloys</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">The diffusion behavior of ? phase Cu-<span class="hlt">Al</span> has been studied at 800, 850, and 950 °C using the experimental approach and analysis scheme of Kirkendall and Darken. Diffusion couples were made using the window frame technique and concentration profiles were determined by electron probe microanalysis. The chemical diffusion coefficient, D˜ was found to be D˜=0.65 exp(-42200/RT) cm2/s. The diffusivity was observed to be independent of composition over the range 11-13 wt. % <span class="hlt">Al</span>. The self-diffusion coefficients DCu and DAl were determined to be DAl =0.13 exp(-38900/RT) cm2/s and DCu =2.2 exp(-43400/RT) cm2/s. All activation energies are in calories/mole.</p> <div class="credits"> <p class="dwt_author">Romig, A. D., Jr.</p> <p class="dwt_publisher"></p> <p class="publishDate">1983-06-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">294</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/servlets/purl/960677"> <span id="translatedtitle">Observable Proxies For 26 <span class="hlt">Al</span> Enhancement</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">We consider the cospatial production of elements in supernova explosions to find observationally detectable proxies for enhancement of {sup 26}<span class="hlt">Al</span> in supernova ejecta and stellar systems. Using four progenitors we explore a range of 1D explosions at different energies and an asymmetric 3D explosion. We find that the most reliable indicator of the presence of {sup 26}<span class="hlt">Al</span> in unmixed ejecta is a very low S/Si ratio ({approx} 0.05). Production of N in O/S/Si-rich regions is also indicative. The biologically important element P is produced at its highest abundance in the same regions. Proxies should be detectable in supernova ejecta with high spatial resolution multi wavelength observations, but the small absolute abundance of material injected into a proto-planetary disk makes detection unlikely in existing or forming stellar/planetary systems.</p> <div class="credits"> <p class="dwt_author">Fryer, Christopher L [Los Alamos National Laboratory; Young, Patrick A [Los Alamos National Laboratory; Ellinger, Carola I [ASU; Arnett, William D [UNIV ARIZONA</p> <p class="dwt_publisher"></p> <p class="publishDate">2008-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">295</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/1996PhRvB..54.3033Y"> <span id="translatedtitle">Giant magnetoresistance in Cu-Mn-<span class="hlt">Al</span></span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">Giant negative magnetoresistance (GMR) has been observed in melt-spun CuxMnyAlz ribbons (x=50-65, y=5-25, and z=25-30), with values up to 15% at 30 K. GMR was observed in all samples with off-stoichiometric composition which had a tweed structure consisting of a mixture of Mn-rich and Mn-poor Cu2Mn<span class="hlt">Al</span>-type (2:1:1) regions and/or of a fine mixture of magnetic 2:1:1 and nonmagnetic Cu9<span class="hlt">Al</span>4 (9:4) phases. The highest value was obtained in samples with the 2:1:1 phase as a majority phase. The observed GMR is attributed to interfacial scattering at these fine structural mixtures.</p> <div class="credits"> <p class="dwt_author">Yiping, L.; Murthy, A.; Hadjipanayis, G. C.; Wan, H.</p> <p class="dwt_publisher"></p> <p class="publishDate">1996-08-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">296</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://arxiv.org/pdf/1501.04880.pdf"> <span id="translatedtitle">Status of the <span class="hlt">Al</span>Cap experiment</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">The <span class="hlt">Al</span>Cap experiment is a joint project between the COMET and Mu2e collaborations. Both experiments intend to look for the lepton-flavour violating conversion $\\mu + A \\rightarrow e + A$, using tertiary muons from high-power pulsed proton beams. In these experiments the products of ordinary muon capture in the muon stopping target are an important concern, both in terms of hit rates in tracking detectors and radiation damage to equipment. The goal of the <span class="hlt">Al</span>Cap experiment is to provide precision measurements of the products of nuclear capture on Aluminium, which is the favoured target material for both COMET and Mu2e. The results will be used for optimising the design of both conversion experiments, and as input to their simulations. Data was taken in December 2013 and is currently being analysed.</p> <div class="credits"> <p class="dwt_author">Litchfield, R Phillip</p> <p class="dwt_publisher"></p> <p class="publishDate">2015-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">297</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://arxiv.org/pdf/1501.04880v1"> <span id="translatedtitle">Status of the <span class="hlt">Al</span>Cap experiment</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">The <span class="hlt">Al</span>Cap experiment is a joint project between the COMET and Mu2e collaborations. Both experiments intend to look for the lepton-flavour violating conversion $\\mu + A \\rightarrow e + A$, using tertiary muons from high-power pulsed proton beams. In these experiments the products of ordinary muon capture in the muon stopping target are an important concern, both in terms of hit rates in tracking detectors and radiation damage to equipment. The goal of the <span class="hlt">Al</span>Cap experiment is to provide precision measurements of the products of nuclear capture on Aluminium, which is the favoured target material for both COMET and Mu2e. The results will be used for optimising the design of both conversion experiments, and as input to their simulations. Data was taken in December 2013 and is currently being analysed.</p> <div class="credits"> <p class="dwt_author">R. Phillip Litchfield</p> <p class="dwt_publisher"></p> <p class="publishDate">2015-01-20</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">298</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/26597809"> <span id="translatedtitle">An independent assessment of Groeneveld et <span class="hlt">al.'s</span> 1995 CHF look-up table</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">The prediction capability of the 1995 CHF look-up table (Groeneveld D.C., et <span class="hlt">al</span>., Nucl. Eng. Des. 163 (1996) 1–23) is independently assessed based on the KAIST data base consisting of 10?822 data for uniformly-heated, vertical, round tubes. This confirms the error statistics for the heat balance method reported by Groeneveld et <span class="hlt">al</span>. and shows overall average and RMS errors of</p> <div class="credits"> <p class="dwt_author">Won-Pil Baek; Hong-Chae Kim; Soon Heung Chang</p> <p class="dwt_publisher"></p> <p class="publishDate">1997-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">299</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/40081139"> <span id="translatedtitle">PVD Coating of Mg–AZ31 by Thin Layer of <span class="hlt">Al</span> and <span class="hlt">Al</span>–Si</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Although magnesium alloys have the advantage of high specific strength, they have poor atmospheric corrosion resistance. An\\u000a important method of improving the corrosion resistance is by applying a coating layer. In this work, the physical vapor deposition\\u000a (PVD) technique is used for coating a magnesium (Mg) AZ31 sheet substrate with a thin layer of high purity aluminum (<span class="hlt">Al</span>) and\\u000a <span class="hlt">Al</span>–12.6%</p> <div class="credits"> <p class="dwt_author">Mohamed A. Taha; Nahed A. El-Mahallawy; Rawia M. Hammouda; Sherif I. Nassef</p> <p class="dwt_publisher"></p> <p class="publishDate">2010-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">300</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2013RuMet2013..633L"> <span id="translatedtitle">Simulation of aluminothermic smelting of <span class="hlt">Al</span>-Zr and <span class="hlt">Al</span>-Zr-Mo-Sn alloys</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">Aluminothermic smelting of <span class="hlt">Al</span>-Zr and <span class="hlt">Al</span>-Zr-Mo-Sn alloys has been simulated in terms of thermodynamics. The thermodynamic properties of molybdenum and zirconium intermetallic compounds are calculated. It is demonstrated that, with consideration for their formation, the calculated compositions of aluminothermic blends and the forecasted extraction of target metals into an alloy are in good agreement with the data obtained during pilot tests.</p> <div class="credits"> <p class="dwt_author">Larionov, A. V.; Chumarev, V. M.; Udoeva, L. Yu.; Mansurova, A. N.; Rylov, A. N.; Raikov, A. Yu.; Aleshin, A. P.; Trubachev, M. V.</p> <p class="dwt_publisher"></p> <p class="publishDate">2013-09-01</p> </div> </div> </div> </div> <div id="filter_results_form" class="filter_results_form floatContainer" style="visibility: visible;"> <div style="width:100%" id="PaginatedNavigation" class="paginatedNavigationElement"> <a id="FirstPageLink" onclick='return showDiv("page_1");' href="#" title="First Page"> <img id="FirstPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.first.18x20.png" alt="First Page" /></a> <a id="PreviousPageLink" onclick='return showDiv("page_14");' href="#" title="Previous Page"> <img id="PreviousPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.previous.18x20.png" alt="Previous Page" /></a> <span id="PageLinks" class="pageLinks"> <span> <a onClick='return showDiv("page_1");' href="#">1</a> <a onClick='return showDiv("page_2");' href="#">2</a> <a onClick='return showDiv("page_3");' href="#">3</a> <a onClick='return showDiv("page_4");' 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onclick='return showDiv("page_25.0");' href="#" title="Last Page"> <img id="LastPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.last.18x20.png" alt="Last Page" /></a> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">301</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/39670943"> <span id="translatedtitle">Diffusion in single crystal of melilite: interdiffusion of <span class="hlt">Al</span> + <span class="hlt">Al</span> vs. Mg + Si</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Interdiffusion coefficients of <span class="hlt">Al</span> + <span class="hlt">Al</span> vs. Mg + Si in the gehlenite–åkermanite system of melilite were determined by coupled\\u000a annealing of synthesized end-member single crystals. The observed diffusion coefficients for a couple-annealed sample vary\\u000a for about 2 orders of magnitude, showing strong dependence on the gehlenite–åkermanite composition: diffusion coefficient\\u000a observed at 1350 °C, for example, is 3 × 10?13</p> <div class="credits"> <p class="dwt_author">H. Nagasawa; T. Suzuki; M. Ito; M. Morioka</p> <p class="dwt_publisher"></p> <p class="publishDate">2001-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">302</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/47871365"> <span id="translatedtitle">Microstructural study of laser-clad Fe<span class="hlt">Al</span> bronze on <span class="hlt">Al</span>-Si alloy</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Microstructure studies of laser-clad Fe-<span class="hlt">Al</span> bronze on an <span class="hlt">Al</span>-Si alloy were carried out by OM(optical microscope), SEM(scanning electron microscope), TEM(transmission electron microscope) and XRD(X ray diffraction) analyses. The cross-section of the laser-cladding was divided into clad region and transitional region. The clad region composes a matrix with a twin structure of needle-like and feathery appearance and a second phase of</p> <div class="credits"> <p class="dwt_author">A. H. Wang; C. S. Xie</p> <p class="dwt_publisher"></p> <p class="publishDate">2001-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">303</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/11207932"> <span id="translatedtitle">Transmission electron microscopy studies of squeeze cast <span class="hlt">Al-Al</span>N composites.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">Aluminium-matrix composites containing approximately 45 vol.% <span class="hlt">Al</span>N particles were fabricated by melt infiltration of aluminium into an <span class="hlt">Al</span>N preform under a pressure up to 130 MPa. Three types of aluminium alloy (2024, 6060 and 5754) were used. The as-prepared composites were studied by light microscopy, scanning and transmission electron microscopies, and energy-dispersive X-ray spectroscopy. As a result of the melt infiltration process, the composites are very dense and the microstructure shows a homogeneous distribution of the reinforcement. The interfaces are clean with very little porosity. Composites with 2024 and 6060 matrices were carefully studied by transmission electron microscopy (TEM) and high resolution electron microscopy (HREM) after heat treatments. Dislocation density in the matrix of the reinforced material increases due to the difference in thermal expansion coefficients of aluminium alloys and <span class="hlt">Al</span>N. This can induce an accelerated ageing response of the coherent and semicoherent precipitations of age-hardened matrices. This behaviour has been studied in the 2024 and 6060 composites by using microhardness measurements and TEM. Reactions between the <span class="hlt">Al</span>N reinforcement and aluminium matrices (6060 and 5754) were observed and analysed by TEM. Matrices containing some of magnesium display a Mg<span class="hlt">Al</span>2O4 spinel formation at the <span class="hlt">Al</span>N/matrix interface. The spinel formation is probably due to the reaction between magnesium of the matrix and the thin <span class="hlt">Al</span>2O3 layer on the <span class="hlt">Al</span>N surfaces. This reaction can affect the mechanical behaviour of the composite infiltrated with the 5754 matrix. This has been confirmed by overageing some samples at high temperatures (300 degrees C and 550 degrees C) for 10 days in order to emphasize the interfacial reactions. PMID:11207932</p> <div class="credits"> <p class="dwt_author">Chédru, M.; Vicens, J.; Chermant, J. L.; Mordike, B. L.</p> <p class="dwt_publisher"></p> <p class="publishDate">2001-02-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">304</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/60713082"> <span id="translatedtitle">Surface structures of <span class="hlt">Al</span>-Pd-Mn and <span class="hlt">Al</span>-Cu-Fe icosahedral quasicrystals</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">In this dissertation, the author reports on the surface structure of i-<span class="hlt">Al</span>-Pd-Mn twofold, threefold, fivefold and i-<span class="hlt">Al</span>-Cu-Fe fivefold surfaces. The LEED studies indicate the existence of two distinct stages in the regrowth of all four surfaces after Ar{sup +} sputtering. In the first stage, upon annealing at relatively low temperature: 500K--800K (depending on different surfaces), a cubic phase appears. The</p> <div class="credits"> <p class="dwt_author">Shen</p> <p class="dwt_publisher"></p> <p class="publishDate">1999-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">305</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/53906245"> <span id="translatedtitle">Antiferromagnetic behaviour of Tb2<span class="hlt">Al</span> alloy</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">The structural, thermal and magnetic properties ol the Tb2<span class="hlt">Al</span> alloy have been investigated by AC\\/DC magnetic susceptibility, specific heat, X-ray and neutron diffraction measurements. DC and AC-magnetic susceptibility results are consistent with an AFM order at TN = 52 K. The specific heat data show a lambda anomaly associated to the magnetic transition with a peak at 52 K (cord</p> <div class="credits"> <p class="dwt_author">D. P. Rojas; G. André; J. Rodríguez Fernández; J. Sánchez Marcos; L. Fernández Barquín; C. Echevarria</p> <p class="dwt_publisher"></p> <p class="publishDate">2011-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">306</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.springerlink.com/index/35466827815ru516.pdf"> <span id="translatedtitle">Prognosis and clinical varieties of <span class="hlt">ALS</span> disease</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">210 cases of <span class="hlt">ALS</span> disease in the period 1955–1979 are considered. Different parameters such as sex, age, duration and clinical course have been correlated with four clinical types: conventional, pseudopolyneuritic, pyramidal and bulbar. The age distribution shows a peak in the fifth decade of life. The sex ratio is 2.08?1. Considering together all the clinical types, the mean duration of</p> <div class="credits"> <p class="dwt_author">P. Mortara; D. Bardelli; M. Leone; D. Schiffer</p> <p class="dwt_publisher"></p> <p class="publishDate">1981-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">307</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://web.mit.edu/persci/people/adelson/patent_pdfs/void87.pdf"> <span id="translatedtitle">United States Patent [19] Burt et <span class="hlt">al</span>.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">United States Patent [19] Burt et <span class="hlt">al</span>. [11] Patent Number: 4 , 6 98, 84 3 [45] Date of Patent: Oct, 43, 49, 50, 54, 55 [56] References Cited U.S. PATENT DOCUMENTS 3,737,855 6/1973 Cutaia.S. Patent Oct. 6, 1987 Sheet 1 of 3 4,698,843 #12;U.S. Patent Oct. 6, 1987 Sheet 2 of 3 4,698,843 #12;U</p> <div class="credits"> <p class="dwt_author">Adelson, Edward</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">308</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://web.mit.edu/persci/people/adelson/patent_pdfs/patent1985.pdf"> <span id="translatedtitle">United States Patent [19] Carlson et <span class="hlt">al</span>.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">United States Patent [19] Carlson et <span class="hlt">al</span>. [11] Patent Number: 4,523,230 [45] Date of Patent: Jun. 11 ............. 358/160, 163; 166; 167, 358/905, 21 R, 36; 382/49, 54 [56] References Cited U.S. PATENT DOCUMENTS 4 signals. 24 Claims, 8 Drawing Figures #12;U.S. Patent Jun. 11, 1985 Sheet 1 of 4 4,523,230 #12;U.S. Patent</p> <div class="credits"> <p class="dwt_author">Adelson, Edward</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">309</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/39857347"> <span id="translatedtitle">Intermetallic phases in <span class="hlt">Al</span>-Mn alloys</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">The intermetallic phases present in high-purity and commercial purity <span class="hlt">Al</span>-Mn alloys (up to 2% Mn) in as-cast and heat-treated conditions were extracted electrolytically in 10% HCl in methanol solution and identified by X-ray diffraction. As iron is known to increase the coarse cast-intermetallic particles and to cause refinement of the grain size after recrystallization, different amounts of iron (up to</p> <div class="credits"> <p class="dwt_author">Aruna Bahadur</p> <p class="dwt_publisher"></p> <p class="publishDate">1988-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">310</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2001PhuZ...32...84G"> <span id="translatedtitle">Euklid <span class="hlt">als</span> Physiker: Die Realgeltung der Geometrie</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">Es lässt sich beweisen, dass die Winkelsumme in einem ebenen, euklidischen Dreieck 180 Grad beträgt. Ebenso ergibt sich, dass die Winkelsumme in einem Dreieck auf einer Kugeloberfläche größer <span class="hlt">als</span> 180 Grad ist. Auch der Satz des Pythagoras ist beweisbar. In allen Fällen beruhen die Beweise auf Euklids Parallelenaxiom. Das aber lässt sich nicht beweisen. Beweisbar aber ist, dass es in nicht-euklidischen Geomerien nicht gilt.</p> <div class="credits"> <p class="dwt_author">Genz, Henning</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">311</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.sciencedirect.com/science?_ob=MImg&_imagekey=B6TX5-4WSRDSV-2-13&_cdi=5581&_user=10&_orig=browse&_coverDate=01%2F31%2F2010&_sk=999689998&view=c&wchp=dGLbVzb-zSkWb&_valck=1&md5=be3b4d5793bccd5fb7320b7462a7523c&ie=/sdarticle.pdf"> <span id="translatedtitle">Mechanical properties of in situ <span class="hlt">Al</span> 2O 3 formed <span class="hlt">Al</span>–Si composite coating via atmospheric plasma spraying</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">In this study, mechanically alloyed <span class="hlt">Al</span>–12Si\\/SiO2 composite powder was deposited onto an aluminum substrate by atmospheric plasma spraying. The composite coating consisting of in situ formed <span class="hlt">Al</span>2O3 reinforced hypereutectic <span class="hlt">Al</span>–18Si matrix alloy was achieved. The produced coatings were extensively analyzed with respect to X-ray diffraction (XRD). The XRD patterns of the coatings include <span class="hlt">Al</span>, Si and <span class="hlt">Al</span>2O3 phase formation. Mechanical</p> <div class="credits"> <p class="dwt_author">O. Culha; C. Tekmen; M. Toparli; Y. Tsunekawa</p> <p class="dwt_publisher"></p> <p class="publishDate">2010-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">312</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/18802183"> <span id="translatedtitle">Formation and stability of transitional long-period superstructures in <span class="hlt">Al</span>-rich Ti-<span class="hlt">Al</span> single crystals</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">The phase transition and thermal stability of long-period superstructures were examined in Ti-58.0 at.% <span class="hlt">Al</span>, Ti-60.0 at.% <span class="hlt">Al</span> and Ti-62.5 at.% <span class="hlt">Al</span> single crystals focusing on reflections based on sets of lattice planes parallel to {310)fcc. Some long-period superstructures appear accompanied by obscure coherent boundaries in the L10 matrix. It was found that the <span class="hlt">Al</span>5Ti3' structure distinguished from the <span class="hlt">Al</span>5Ti3</p> <div class="credits"> <p class="dwt_author">T. Nakano; K. Hayashi; Y. Umakoshi</p> <p class="dwt_publisher"></p> <p class="publishDate">2002-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">313</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.me.concordia.ca/~mmedraj/papers/mg-al-mn.pdf"> <span id="translatedtitle">Advance View Proofs Thermodynamic Description of the Mg-Mn, <span class="hlt">Al</span>-Mn and Mg-<span class="hlt">Al</span>-Mn Systems</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">Advance View Proofs Thermodynamic Description of the Mg-Mn, <span class="hlt">Al</span>-Mn and Mg-<span class="hlt">Al</span>-Mn Systems Using-consistent thermodynamic model of the Mg-Mn, <span class="hlt">Al</span>-Mn and Mg-<span class="hlt">Al</span>-Mn systems has been developed. The major difference between work on the <span class="hlt">Al</span>-Mn system that uses the same model for the liquid phase reveals that better agreement</p> <div class="credits"> <p class="dwt_author">Medraj, Mamoun</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">314</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://hal.inria.fr/docs/00/24/51/44/PDF/ajp-rphysap_1983_18_12_763_0.pdf"> <span id="translatedtitle">Structures <span class="hlt">Al-Al</span>2O3-InP : Analyse des processus de drive et valuation des hauteurs</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">763 Structures <span class="hlt">Al-Al</span>2O3-InP : Analyse des processus de dérive et évaluation des hauteurs de photoémission interne de structures <span class="hlt">Al-Al</span>2O3-InP. Cette technique permet, entre autres, la mesure directe de la hauteur de barrière semiconducteur-isolant et le contrôle du remplissage des pièges d'interface. <span class="hlt">Al</span>2O3 est</p> <div class="credits"> <p class="dwt_author">Boyer, Edmond</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">315</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2004JPS...133..302T"> <span id="translatedtitle">Preparation and characterization of Ppy/<span class="hlt">Al</span> 2O 3/<span class="hlt">Al</span> used as a solid-state capacitor</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">The characteristics of a solid-state capacitor based on Ppy (polypyrrole)/<span class="hlt">Al</span> 2O 3/<span class="hlt">Al</span> prepared by the constant-current method are investigated. The surface composition of aluminum (<span class="hlt">Al</span>) foil analyzed to by electron spectroscopy for chemical analysis (ESCA) is found to be <span class="hlt">Al</span>O 2- when the native oxide on the <span class="hlt">Al</span> foil is etched by 0.1 M NaOH. Three stages are defined from the relationship between the potential and the electrolysis time in simultaneously preparing the dielectric layer (<span class="hlt">Al</span> 2O 3) and the conducting polymer (Ppy) on <span class="hlt">Al</span> foil etched with 0.1 M NaOH. The experimental results indicate that only stage one, i.e. the formation of <span class="hlt">Al</span> 2O 3, occurs in the preparation of Ppy/<span class="hlt">Al</span> 2O 3/<span class="hlt">Al</span> at a current density greater than 0.9 mA cm -2. A higher concentration of pyrrole enhances the nucleation of Ppy within the pores of <span class="hlt">Al</span> 2O 3 such that the period of the first stage decrease and the second stage of the propagation of Ppy is increased. The leakage current of Ppy/<span class="hlt">Al</span> 2O 3/<span class="hlt">Al</span> rises from 0.009 to 0.405 ?A cm -2 with increase in the concentration of pyrrole in preparing Ppy/<span class="hlt">Al</span> 2O 3/<span class="hlt">Al</span> from 0.05 to 0.15 M. Raising the cut-off potential for preparing Ppy/<span class="hlt">Al</span> 2O 3/<span class="hlt">Al</span> from 20 to 60 V increases the thickness of <span class="hlt">Al</span> 2O 3 and lowers the capacity of Ppy/<span class="hlt">Al</span> 2O 3/<span class="hlt">Al</span> from 478.5 to 174.2 nF cm -2.</p> <div class="credits"> <p class="dwt_author">Tsai, Ming-Liao; Chen, Pei-Jiun; Do, Jing-Shan</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">316</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/47646101"> <span id="translatedtitle">A crystal plasticity materials constitutive model for polysynthetically-twinned ?Ti<span class="hlt">Al</span> + ? 2 Ti 3 <span class="hlt">Al</span> single crystals</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Deformation behavior of polysynthetically-twinned lamellar ?-Ti<span class="hlt">Al</span> + ?2-Ti3<span class="hlt">Al</span> single crystals has been analyzed using a three-dimensional, isothermal, rate-dependent, large-strain, crystal-plasticity based materials constitutive model. Within the model it is assumed that plastic deformation parallel to the ?-Ti<span class="hlt">Al</span>\\/?2-Ti3<span class="hlt">Al</span> lamellar boundaries is controlled by the softer ?-Ti<span class="hlt">Al</span> phase while deformation which contains a component normal to these boundaries is dominated by the</p> <div class="credits"> <p class="dwt_author">M. Grujicic; S. Batchu</p> <p class="dwt_publisher"></p> <p class="publishDate">2001-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">317</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/40940305"> <span id="translatedtitle">Ni<span class="hlt">Al–Al</span> 2O 3 composites produced by pulse plasma sintering with the participation of the SHS reaction</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">The paper presents the results of examinations of the Ni<span class="hlt">Al–Al</span>2O3 sinters (13, 38 and 55vol% of <span class="hlt">Al</span>2O3) produced from a mixture of nickel, aluminum and alumina powders in a single technological process, using the pulse plasma sintering (PPS) method. By subjecting the elemental powders to a PPS process for 900s, we obtained Ni<span class="hlt">Al–Al</span>2O3 composites of a hardness ranging from 480</p> <div class="credits"> <p class="dwt_author">A. Michalski; J. Jaroszewicz; M. Rosi?ski; D. Siemiaszko</p> <p class="dwt_publisher"></p> <p class="publishDate">2006-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">318</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2015JMEP..tmp...14P"> <span id="translatedtitle">Softening Kinetics in High <span class="hlt">Al</span> and High <span class="hlt">Al</span>-Nb-Microalloyed Steels</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">Double-hit torsion tests were performed in order to study the effect of high <span class="hlt">Al</span> levels (up to 2 wt.%) and Nb microalloying (up to 0.07 wt.%) on the static softening kinetics of 0.2%C-2%Mn steels. The addition of 1%<span class="hlt">Al</span> leads to a delay in the softening kinetics due to solute-drag effect, equivalent to that exerted by 0.027%Nb. For the 2%<span class="hlt">Al</span> steels, at temperatures below 1000 °C, ? ? ? phase transformation occurs after deformation, resulting in a larger retardation of the softening kinetics. At temperatures higher than 1000 °C, Nb in solid solution also contributes to the retardation of the static softening kinetics, and at lower temperatures NbC strain-induced precipitation leads to incomplete softening for the 1%<span class="hlt">Al</span> steel, and to a complex interaction between softening, phase transformation, and NbC strain-induced precipitation for the 2%<span class="hlt">Al</span>-Nb steels. The effect of <span class="hlt">Al</span> on the static softening kinetics was quantified and introduced in a model developed in previous works for the prediction of the austenite microstructural evolution. In order to validate the results of the model, multipass torsion tests were carried out at conditions representative of hot strip and plate rolling mills. Model predictions show reasonable agreement with the results obtained at different deformation conditions.</p> <div class="credits"> <p class="dwt_author">Pereda, B.; Aretxabaleta, Z.; López, B.</p> <p class="dwt_publisher"></p> <p class="publishDate">2015-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">319</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2009JTST...18..536G"> <span id="translatedtitle">Fe<span class="hlt">Al</span> and Nb<span class="hlt">Al</span>3 Intermetallic-HVOF Coatings: Structure and Properties</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">Transition metal aluminides in their coating form are currently being explored in terms of resistance to oxidation and mechanical behavior. This interest in transition metal aluminides is mainly due to the fact that their high <span class="hlt">Al</span> content makes them attractive for high-temperature applications. This is also a reason to study their resistance to wear; they may be suitable for use in applications that produce a lot of wear in aggressive environments, thus replacing established coating materials. In this study, the microstructure, microhardness, and wear and oxidation performance of Fe<span class="hlt">Al</span> and Nb<span class="hlt">Al</span>3 coatings produced by high-velocity oxy-fuel spraying are evaluated with two main aims: (i) to compare these two coating systems—a commonly studied aluminide (Fe<span class="hlt">Al</span>) and, Nb<span class="hlt">Al</span>3, an aluminide whose deposition by thermal spraying has not been attempted to date—and (ii) to analyze the relationship between their microstructure, composition and properties, and so clarify their wear and oxidation mechanisms. In the present study, the higher hardness of niobium aluminide coatings did not correlate with a higher wear resistance and, finally, although pesting phenomena (disintegration in oxidizing environments) were already known of in bulk niobium aluminides, here their behavior in the coating form is examined. It was shown that such accelerated oxidation was inevitable with respect to the better resistance of Fe<span class="hlt">Al</span>, but further improvements are foreseen by addition of alloying elements in that alloy.</p> <div class="credits"> <p class="dwt_author">Guilemany, J. M.; Cinca, N.; Dosta, S.; Cano, I. G.</p> <p class="dwt_publisher"></p> <p class="publishDate">2009-12-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">320</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3472785"> <span id="translatedtitle">Room Temperature Radiolytic Synthesized Cu@Cu<span class="hlt">Al</span>O2-<span class="hlt">Al</span>2O3 Nanoparticles</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p class="result-summary">Colloidal Cu@Cu<span class="hlt">Al</span>O2-<span class="hlt">Al</span>2O3 bimetallic nanoparticles were prepared by a gamma irradiation method in an aqueous system in the presence of polyvinyl pyrrolidone (PVP) and isopropanol respectively as a colloidal stabilizer and scavenger of hydrogen and hydroxyl radicals. The gamma irradiation was carried out in a 60Co gamma source chamber with different doses up to 120 kGy. The formation of Cu@Cu<span class="hlt">Al</span>O2-<span class="hlt">Al</span>2O3 nanoparticles was observed initially by the change in color of the colloidal samples from colorless to brown. Fourier transform infrared spectroscopy (FTIR) confirmed the presence of bonds between polymer chains and the metal surface at all radiation doses. Results of transmission electron microscopy (TEM), energy dispersive X-ray spectrometry (EDX), and X-ray diffraction (XRD) showed that Cu@Cu<span class="hlt">Al</span>O2-<span class="hlt">Al</span>2O3 nanoparticles are in a core-shell structure. By controlling the absorbed dose and precursor concentration, nanoclusters with different particle sizes were obtained. The average particle diameter increased with increased precursor concentration and decreased with increased dose. This is due to the competition between nucleation, growth, and aggregation processes in the formation of nanoclusters during irradiation. PMID:23109893</p> <div class="credits"> <p class="dwt_author">Abedini, Alam; Saion, Elias; Larki, Farhad; Zakaria, Azmi; Noroozi, Monir; Soltani, Nayereh</p> <p class="dwt_publisher"></p> <p class="publishDate">2012-01-01</p> </div> </div> </div> </div> <div id="filter_results_form" class="filter_results_form floatContainer" style="visibility: visible;"> <div style="width:100%" id="PaginatedNavigation" class="paginatedNavigationElement"> <a id="FirstPageLink" onclick='return showDiv("page_1");' href="#" title="First Page"> <img id="FirstPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.first.18x20.png" alt="First Page" /></a> <a id="PreviousPageLink" onclick='return showDiv("page_15");' href="#" title="Previous Page"> <img id="PreviousPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.previous.18x20.png" alt="Previous Page" /></a> <span id="PageLinks" class="pageLinks"> <span> <a onClick='return showDiv("page_1");' href="#">1</a> <a 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class="paginatedNavigationElement"> <a id="FirstPageLink" onclick='return showDiv("page_1");' href="#" title="First Page"> <img id="FirstPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.first.18x20.png" alt="First Page" /></a> <a id="PreviousPageLink" onclick='return showDiv("page_16");' href="#" title="Previous Page"> <img id="PreviousPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.previous.18x20.png" alt="Previous Page" /></a> <span id="PageLinks" class="pageLinks"> <span> <a onClick='return showDiv("page_1");' href="#">1</a> <a onClick='return showDiv("page_2");' href="#">2</a> <a onClick='return showDiv("page_3");' href="#">3</a> <a onClick='return showDiv("page_4");' href="#">4</a> <a onClick='return showDiv("page_5");' href="#">5</a> <a onClick='return showDiv("page_6");' href="#">6</a> <a onClick='return showDiv("page_7");' href="#">7</a> <a onClick='return showDiv("page_8");' href="#">8</a> <a onClick='return 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title="Next Page"> <img id="NextPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.next.18x20.png" alt="Next Page" /></a> <a id="LastPageLink" onclick='return showDiv("page_25.0");' href="#" title="Last Page"> <img id="LastPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.last.18x20.png" alt="Last Page" /></a> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">321</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/biblio/22261715"> <span id="translatedtitle">A comparative wear study on <span class="hlt">Al</span>-Li and <span class="hlt">Al</span>-Li/SiC composite</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">Aluminum-lithium based unreinforced (<span class="hlt">Al</span>-8090) alloy and <span class="hlt">Al</span>-8090/SiCp/17 vol.% metal matrix composite produced by extrusion after spray co-deposition. A dry ball-on disk wear test was carried out for both alloy and composite. The tests were performed against an <span class="hlt">Al</span>{sub 2}O{sub 3} ball, 10 mm in diameter, at room temperature and in laboratory air conditions with a relative humidity of 40-60%. Sliding speed was chosen as 1.0 ms{sup ?1} and normal loads of 1.0, 3.0 and 5.0 N were employed at a constant sliding distance of 1000 m. The wear damage on the specimens was evaluated via measurement of wear depth and diameter. Microstructural and wear characterization was carried out via scanning electron microscopy (SEM). The results showed that wear loss of the <span class="hlt">Al</span>-8090/SiC composite was less than that of the <span class="hlt">Al</span>-8090 matrix alloy. Plastic deformation observed on the wear surface of the composite and the matrix alloy, and the higher the applied load the greater the plastic deformation. Scanning electron microscopy examinations of wear tracks also reveal that delamination fracture was the dominant wear mechanism during the wear progression. Friction coefficient was maximum at the low applied load in the case of the <span class="hlt">Al</span>-8090/SiC composite while a gradual increase was observed with applied load for the matrix alloy.</p> <div class="credits"> <p class="dwt_author">Okumus, S. Cem, E-mail: cokumus@sakarya.edu.tr; Karslioglu, Ramazan, E-mail: cokumus@sakarya.edu.tr; Akbulut, Hatem, E-mail: cokumus@sakarya.edu.tr [Sakarya University Engineering Faculty, Department of Metallurgical and Materials Engineering, Esentepe Campus, 54187, Sakarya (Turkey)</p> <p class="dwt_publisher"></p> <p class="publishDate">2013-12-16</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">322</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2013AIPC.1569..360O"> <span id="translatedtitle">A comparative wear study on <span class="hlt">Al</span>-Li and <span class="hlt">Al</span>-Li/SiC composite</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">Aluminum-lithium based unreinforced (<span class="hlt">Al</span>-8090) alloy and <span class="hlt">Al</span>-8090/SiCp/17 vol.% metal matrix composite produced by extrusion after spray co-deposition. A dry ball-on disk wear test was carried out for both alloy and composite. The tests were performed against an <span class="hlt">Al</span>2O3 ball, 10 mm in diameter, at room temperature and in laboratory air conditions with a relative humidity of 40-60%. Sliding speed was chosen as 1.0 ms-1 and normal loads of 1.0, 3.0 and 5.0 N were employed at a constant sliding distance of 1000 m. The wear damage on the specimens was evaluated via measurement of wear depth and diameter. Microstructural and wear characterization was carried out via scanning electron microscopy (SEM). The results showed that wear loss of the <span class="hlt">Al</span>-8090/SiC composite was less than that of the <span class="hlt">Al</span>-8090 matrix alloy. Plastic deformation observed on the wear surface of the composite and the matrix alloy, and the higher the applied load the greater the plastic deformation. Scanning electron microscopy examinations of wear tracks also reveal that delamination fracture was the dominant wear mechanism during the wear progression. Friction coefficient was maximum at the low applied load in the case of the <span class="hlt">Al</span>-8090/SiC composite while a gradual increase was observed with applied load for the matrix alloy.</p> <div class="credits"> <p class="dwt_author">Okumus, S. Cem; Karslioglu, Ramazan; Akbulut, Hatem</p> <p class="dwt_publisher"></p> <p class="publishDate">2013-12-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">323</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/1996JAP....79.4854Q"> <span id="translatedtitle">The protective coatings of NdFeB magnets by <span class="hlt">Al</span> and <span class="hlt">Al</span>(Fe)</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">NdFeB permanent magnets are coated by two different methods, dip coating and evaporation coating, with <span class="hlt">Al</span>. It is found that an intermetallic reaction has occurred and formed a dominant phase of Fe<span class="hlt">Al</span>2.5Bx at the interface between the <span class="hlt">Al</span> coating and the magnet material. Such reaction enhances strong bonding between the coating and the magnet. When <span class="hlt">Al</span>(Fe) is used for the coating, no detectable intermetallic phase is observed, and therefore the amount of magnet material is conserved. We have studied the effect of the intermetallic phase on corrosion protection of the magnet. It is found that this phase is less resistive towards HNO3 solution than pure <span class="hlt">Al</span>; but it is more resistive towards NaOH and NaCl. The investigation of the changes of microstructures of the coatings under different tempering conditions have also been carried out. The results show that the heat treatment at 500 °C for 10 min for a ˜ 2 ?m thick <span class="hlt">Al</span> coating by evaporation can produce an optimal layer of intermetallics. If the temperature is too low, the coating will not adhere to the magnet or if too high, it will fully react with the magnet and produce a rough coating surface.</p> <div class="credits"> <p class="dwt_author">Qin, C.-D.; Li, A. S. K.; Ng, D. H. L.</p> <p class="dwt_publisher"></p> <p class="publishDate">1996-04-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">324</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/25170561"> <span id="translatedtitle">TEM and HRTEM Characterization of Ti<span class="hlt">Al</span> Diffusion Bonds Using Ni/<span class="hlt">Al</span> Nanolayers.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">Diffusion bonding of Ti<span class="hlt">Al</span> alloys can be enhanced by the use of reactive nanolayer thin films as interlayers. Using these interlayers, it is possible to reduce the conventional bonding conditions (temperature, time, and pressure) and obtain sound and reliable joints. The microstructural characterization of the diffusion bond interfaces is a fundamental step toward understanding and identifying the bonding mechanisms and relating them to the strength of the joints. The interface of Ti<span class="hlt">Al</span> samples joined using Ni/<span class="hlt">Al</span> nanolayers was characterized by transmission electron microscopy and scanning transmission electron microscopy. Microstructural characterization of the bond revealed that the interfaces consist of several thin layers of different composition and grain size (nanometric and micrometric). The bonding temperature (800, 900, or 1,000°C) determines the grain size and thickness of the layers present at the interface. Phase identification by high-resolution transmission electron microscopy combined with fast Fourier transform and electron energy-loss spectroscopy analyses reveals the presence of several intermetallic compounds: <span class="hlt">Al</span>TiNi, Ni<span class="hlt">Al</span>, and <span class="hlt">Al</span>2TiNi. For bonds produced at 800 and 900°C, nanometric grains of Ti were detected at the center of the interface. PMID:25170561</p> <div class="credits"> <p class="dwt_author">Simões, Sónia; Viana, Filomena; Ramos, Ana S; Vieira, Maria T; Vieira, Manuel F</p> <p class="dwt_publisher"></p> <p class="publishDate">2014-08-29</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">325</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/servlets/purl/6545210"> <span id="translatedtitle">An <span class="hlt">ALS</span> (Advanced Light Source) handbook</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">This booklet aims to provide the prospective user of the Advanced Light Source with a concise description of the radiation a researcher might expect at his or her experimental station. The focus is therefore on the characteristics of the light that emerges from insertion devices and bending magnets and on how components of the beam lines further alter the properties of the radiation. The specifications and operating parameters of the <span class="hlt">ALS</span> injection system and storage ring are of only peripheral interest. To this end, Sections 3 and 5 and most of Section 4 are devoted to summary presentations, by means of performance plots and tabular compilations, of radiation characteristics at the <span class="hlt">ALS</span>--spectral brightness, flux, coherent power, resolution, time structure, etc.--assuming a representative set of four undulators and one wiggler and a corresponding set of five beam lines. As a complement to these performance summaries, Section 1 is a general introductory discussion of synchrotron radiation and the <span class="hlt">ALS</span>, and Section 2 provides a compendious introduction to the characteristics of synchrotron radiation from bending magnets, wigglers, and undulators. In addition, Section 4 briefly introduces the theory of diffraction grating and crystal monochromators. 15 refs., 28 figs., 5 tabs.</p> <div class="credits"> <p class="dwt_author">Not Available</p> <p class="dwt_publisher"></p> <p class="publishDate">1988-11-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">326</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/biblio/20777188"> <span id="translatedtitle">Energetic ion bombarded Fe/<span class="hlt">Al</span> multilayers</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">The utility of ion-assisted deposition is investigated to explore the possibility of counteracting the deficiency of back-reflected current of Ar neutrals in the case of lighter elements such as <span class="hlt">Al</span>. A range of energetically ion bombarded Fe/<span class="hlt">Al</span> multilayers sputtered with applied surface bias of 0, -200, or -400 V were deposited onto Si(111) substrates in an argon atmosphere of 4 mTorr using a computer controlled dc magnetron sputtering system. Grazing incidence reflectivity and rocking curve scans by synchrotron x rays of wavelength of 1.38 A were used to investigate the structures of the interfaces produced. Substantial evidence has been gathered to suggest the gradual suppression of interfacial mixing and reduction in interfacial roughness with increases of applied bias. The densification of the <span class="hlt">Al</span> microstructure was noticeable and may be a consequence of resputtering attributable to the induced ion bombardment. The average interfacial roughnesses were calculated for the 0, -200, and -400 V samples to be 7{+-}0.5, 6{+-}0.5, and 5{+-}0.5 A respectfully demonstrating a 30% improvement in interface quality. Data from rocking curve scans point to improved long-range correlated roughness in energetically deposited samples. The computational code based on the recursive algorithm developed by Parratt [Phys. Rev. 95, 359 (1954)] was successful in the simulation of the specular reflectivity curves.</p> <div class="credits"> <p class="dwt_author">Al-Busaidy, M.S.; Crapper, M.D. [College Science, Physics Department, Sultan Qaboos University, P.O. Box 36, Al-Khod 123 (Oman); Department of Physics, Loughborough University, Loughborough (United Kingdom)</p> <p class="dwt_publisher"></p> <p class="publishDate">2006-05-15</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">327</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2008AIPC..999..257V"> <span id="translatedtitle">Devitrification of <span class="hlt">Al</span>-Y-Ni Glasses</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">Crystallization of gas-atomized <span class="hlt">Al</span>-4.3Y-3.8Ni alloy powder during consolidation has been studied ex-situ in a transmission electron microscope using high-resolution lattice imaging together with the image simulations, selected-area diffraction and energy-dispersive X-ray spectrometry experiments. The as-atomized powder is predominantly amorphous but some particles others show evidence of decomposition. On the application of heat and pressure two types of decomposition product are formed initially; equiaxed nanoscale ?-<span class="hlt">Al</span> grains embedded in an amorphous matrix, and dendritic aluminum grains containing complex ordered structures. The ordered structures in the ?-<span class="hlt">Al</span> were identified as Guinier-Preston like zones: thin sheets of solute rich material parallel to {100} and {110} aluminum planes with ordered cubic symmetry. Amorphous and micro-crystalline phases are in between the aluminum-rich regions. The second and third stages of crystallization involve the conversion of these ordered phases and embryonic precipitates to the better-known binary and ternary compounds.</p> <div class="credits"> <p class="dwt_author">Vasiliev, A. L.; Aindow, M.</p> <p class="dwt_publisher"></p> <p class="publishDate">2008-04-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">328</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/servlets/purl/15014726"> <span id="translatedtitle">KCAT, Xradia, <span class="hlt">ALS</span> and APS Performance Summary</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">At Lawrence Livermore National Laboratory (LLNL) particular emphasis is being placed on the nondestructive characterization (NDC) of components, subassemblies and assemblies of millimeter-size extent with micrometer-size features (mesoscale). These mesoscale objects include materials that vary widely in composition, density, geometry and embedded features. Characterizing these mesoscale objects is critical for corroborating the physics codes that underlie LLNL's Stockpile Stewardship mission. In this report we present results from our efforts to quantitatively characterize the performance of several x-ray systems in an effort to benchmark existing systems and to determine which systems may have the best potential for our mesoscale imaging needs. Several different x-ray digital radiography (DR) and computed tomography (CT) systems exist that may be applicable to our mesoscale object characterization requirements, including microfocus and synchrotron systems. The systems we have benchmarked include KCAT (LLNL developed) and Xradia {mu}XCT (Xradia, Inc., Concord, CA), both microfocus systems, and Beamline 1-ID at the Advance Photon Source (APS) and the Tomography Beamline at the Advanced Light Source (<span class="hlt">ALS</span>), both synchrotron based systems. The <span class="hlt">ALS</span> Tomography Beamline is a new installation, and the data presented and analyzed here is some of the first to be acquired at the facility. It is important to note that the <span class="hlt">ALS</span> system had not yet been optimized at the time we acquired data. Results for each of these systems has been independently documented elsewhere. In this report we summarize and compare the characterization results for these systems.</p> <div class="credits"> <p class="dwt_author">Waters, A; Martz, H; Brown, W</p> <p class="dwt_publisher"></p> <p class="publishDate">2004-09-30</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">329</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=20070021778&hterms=Ni3Al&qs=N%3D0%26Ntk%3DAll%26Ntx%3Dmode%2Bmatchall%26Ntt%3DNi3Al"> <span id="translatedtitle">Solidification Behavior of gamma'-Ni3<span class="hlt">Al</span> Containing Alloys in the Ni-<span class="hlt">Al</span>-O System</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p class="result-summary">The chemical activities of <span class="hlt">Al</span> and Ni in gamma(prime)-Ni3<span class="hlt">Al</span>-containing systems were measured using the multi-cell Knudsen effusion-cell mass spectrometry technique (multi-cell KEMS), over the composition range 8 - 32 at.%<span class="hlt">Al</span> and temperature range T = 1400 - 1750 K. From these measurements a better understanding of the equilibrium solidification behaviour of gamma(prime)-Ni3<span class="hlt">Al</span>-containing alloys in the Ni-<span class="hlt">Al</span>-O system was established. Specifically, these measurements revealed that (1) gamma(prime)-Ni3<span class="hlt">Al</span> forms via the peritectiod reaction, gamma + Beta (+ A12O3) = gamma (prime) (+ <span class="hlt">Al</span>2O3), at 1633 +/- 1 K, (2) the {gamma + Beta + <span class="hlt">Al</span>2O3} phase field is stable over the temperature range 1633 through 1640 K, and (3) equilibrium solidification occurs by the eutectic reaction, L (+ <span class="hlt">Al</span>2O3) = gamma + Beta (+ <span class="hlt">Al</span>2O3), at 1640 +/- 1 K and a liquid composition of 24.8 +/- 0.2 at.%<span class="hlt">Al</span> (at an unknown oxygen content). When projected onto the Ni-<span class="hlt">Al</span> binary, this behaviour is inconsistent with the current Ni-<span class="hlt">Al</span> phase diagram and a new diagram is proposed. This new Ni-<span class="hlt">Al</span> phase diagram explains a number of unusual steady-state solidification structures reported previously and provides a much simpler reaction scheme in the vicinity of the gamma(prime)-Ni3<span class="hlt">Al</span> phase field.</p> <div class="credits"> <p class="dwt_author">Copland, Evan</p> <p class="dwt_publisher"></p> <p class="publishDate">2007-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">330</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=19890005862&hterms=rare+earth+transition+metals+intermetallic&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D30%26Ntt%3Drare%2Bearth%2Btransition%2Bmetals%2Bintermetallic"> <span id="translatedtitle">The oxidation of Ni-rich Ni-<span class="hlt">Al</span> intermetallics</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p class="result-summary">The oxidation of Ni-<span class="hlt">Al</span> intermetallic alloys in the beta-Ni<span class="hlt">Al</span> phase field and in the two phase beta-Ni<span class="hlt">Al</span>/gamma'-Ni3<span class="hlt">Al</span> phase field has been studied between 1000 and 1400 C. The stoichiometric beta-Ni<span class="hlt">Al</span> alloy doped with Zr was superior to other alloy compositions under cyclic and isothermal oxidation. The isothermal growth rates did not increase monotonically as the alloy <span class="hlt">Al</span> content was decreased. The characteristically ridged alpha-<span class="hlt">Al</span>2O3 scale morphology, consisting of cells of thin, textured oxide with thick growth ridges at cell boundaries, forms on oxidized beta-Ni<span class="hlt">Al</span> alloys. The correlation of scale features with isothermal growth rates indicates a predominant grain boundary diffusion growth mechanism. The 1200 C cyclic oxidation resistance decreases near the lower end of the beta-Ni<span class="hlt">Al</span> phase field.</p> <div class="credits"> <p class="dwt_author">Doychak, Joseph; Smialek, James L.; Barrett, Charles A.</p> <p class="dwt_publisher"></p> <p class="publishDate">1988-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">331</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=20010060374&hterms=NiAl&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D20%26Ntt%3DNiAl"> <span id="translatedtitle">Creep and Toughness of Cryomilled Ni<span class="hlt">Al</span> Containing Cr</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p class="result-summary">Ni<span class="hlt">Al-Al</span>N + Cr composites were produced by blending cryomilled Ni<span class="hlt">Al</span> powder with approx. 10 vol % Cr flakes. In comparison to the as-consolidated matrices, hot isostatically pressed Cr-modified materials did not demonstrate any significant improvement in toughness. Hot extruded Ni<span class="hlt">Al-Al</span>N+10.5Cr, however, possessed a toughness twice that determine for the base Ni<span class="hlt">Al-Al</span>N alloy. Measurement of the 1200 to 1400 K plastic flow properties revealed that the strength of the composites was completely controlled by the properties of the Ni<span class="hlt">Al-Al</span>N matrices. This behavior could be successfully modeled by the Rule-of-Mixtures, where load is shed from the weak Cr to the strong matrix.</p> <div class="credits"> <p class="dwt_author">Whittenberger, J. Daniel; Aikin, Beverly; Salem, Jon</p> <p class="dwt_publisher"></p> <p class="publishDate">2000-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">332</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=19900037800&hterms=Ni3Al&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D30%26Ntt%3DNi3Al"> <span id="translatedtitle">The oxidation of Ni-rich Ni-<span class="hlt">Al</span> intermetallics</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p class="result-summary">The oxidation of Ni-<span class="hlt">Al</span> intermetallic alloys in the beta-Ni<span class="hlt">Al</span> phase field and in the two phase beta-Ni<span class="hlt">Al</span>/gamma'-Ni3<span class="hlt">Al</span> phase field has been studied between 1000 and 1400 C. The stoichiometric beta-Ni<span class="hlt">Al</span> alloy doped with Zr was superior to other alloy compositions under cyclic and isothermal oxidation. The isothermal growth rates did not increase monotonically as the alloy <span class="hlt">Al</span> content was decreased. The characteristically ridged alpha-<span class="hlt">Al</span>203 scale morphology, consisting of cells of thin, textured oxide with thick growth ridges at cell boundaries, forms on oxidized beta-Ni<span class="hlt">Al</span> alloys. The correlation of scale features with isothermal growth rates indicates a predominant grain boundary diffusion growth mechanism. The 1200 C cyclic oxidation resistance decreases near the lower end of the beta-Ni<span class="hlt">Al</span> phase field.</p> <div class="credits"> <p class="dwt_author">Doychak, J.; Smialek, J. L.; Barrett, C. A.</p> <p class="dwt_publisher"></p> <p class="publishDate">1989-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">333</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.gpo.gov:80/fdsys/pkg/FR-2012-12-11/pdf/2012-29868.pdf"> <span id="translatedtitle">77 FR 73732 - In the Matter of the Amendment of the Designation of <span class="hlt">al</span>-Qa'ida in Iraq, aka Jam'at <span class="hlt">al</span> Tawhid wa...</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.gpo.gov/fdsys/browse/collection.action?collectionCode=FR">Federal Register 2010, 2011, 2012, 2013</a></p> <p class="result-summary">...<span class="hlt">al</span>-Rafidayn, aka The Organization of <span class="hlt">al</span>-Jihad's Base of Operations in Iraq, aka <span class="hlt">al</span>-Qaida of Jihad in Iraq, aka <span class="hlt">al</span>-Qaida in Iraq, aka <span class="hlt">al</span>-Qaida in Mesopotamia, aka <span class="hlt">al</span>-Qaida in the Land of the Two Rivers, aka <span class="hlt">al</span>-Qaida of the...</p> <div class="credits"> <p class="dwt_author"></p> <p class="dwt_publisher"></p> <p class="publishDate">2012-12-11</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">334</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.gpo.gov:80/fdsys/pkg/FR-2012-01-26/pdf/2012-1537.pdf"> <span id="translatedtitle">77 FR 4083 - Amendment of the Designation of <span class="hlt">al</span>-Qa'ida in Iraq, et <span class="hlt">al</span>. as a Specially Designated Global...</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.gpo.gov/fdsys/browse/collection.action?collectionCode=FR">Federal Register 2010, 2011, 2012, 2013</a></p> <p class="result-summary">...<span class="hlt">al</span>-Rafidayn, aka The Organization of <span class="hlt">al</span>- Jihad's Base of Operations in Iraq, aka <span class="hlt">al</span>-Qaida of Jihad in Iraq, aka <span class="hlt">al</span>-Qaida in Iraq, aka <span class="hlt">al</span>-Qaida in Mesopotamia, aka <span class="hlt">al</span>-Qaida in the Land of the Two Rivers, aka <span class="hlt">al</span>-Qaida of the...</p> <div class="credits"> <p class="dwt_author"></p> <p class="dwt_publisher"></p> <p class="publishDate">2012-01-26</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">335</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.gpo.gov:80/fdsys/pkg/FR-2012-01-26/pdf/2012-1538.pdf"> <span id="translatedtitle">77 FR 4082 - Review and Amendment of the Designation of <span class="hlt">al</span>-Qa'ida in Iraq, et <span class="hlt">al</span>. as a Foreign Terrorist...</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.gpo.gov/fdsys/browse/collection.action?collectionCode=FR">Federal Register 2010, 2011, 2012, 2013</a></p> <p class="result-summary">...<span class="hlt">al</span>-Rafidayn, aka The Organization of <span class="hlt">al</span>-Jihad's Base of Operations in Iraq, aka <span class="hlt">al</span>-Qaida of Jihad in Iraq, aka <span class="hlt">al</span>-Qaida in Iraq, aka <span class="hlt">al</span>-Qaida in Mesopotamia, aka <span class="hlt">al</span>-Qaida in the Land of the Two Rivers, aka <span class="hlt">al</span>-Qaida of the...</p> <div class="credits"> <p class="dwt_author"></p> <p class="dwt_publisher"></p> <p class="publishDate">2012-01-26</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">336</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/1997PhDT........77Z"> <span id="translatedtitle">Phase equilibria and solidification of <span class="hlt">Al</span>-rich <span class="hlt">Al</span>-Mg-Cu alloys</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">The thermodynamic and phase equilibrium data of the ternary <span class="hlt">Al</span>-Mg-Cu system has been critically reviewed and modeled thermodynamically using our own assessments for the binary <span class="hlt">Al</span>-Mg and Mg-Cu systems and Saunders' assessment of <span class="hlt">Al</span>-Cu. A thermodynamic description for the ternary <span class="hlt">Al</span>-Mg-Cu system was obtained through optimization using the phase equilibrium data and thermodynamic data available in the literature. All binary intermetallic phases are assumed to have negligible ternary solubility. There are five ternary intermetallic phases; three of them are taken to be line compounds and two are assumed to be semi-stoichiometric phases. Extensive experimental data are available in the <span class="hlt">Al</span>-rich corner, particularly for the <span class="hlt">Al</span>-rich ternary eutectic. The calculated phase equilibria in the <span class="hlt">Al</span>-rich corner are in good agreement with experimental data. The calculated phase equilibria in the Mg-rich corner fit the experimental data available quantitatively, but may not fit as well as those in the <span class="hlt">Al</span>-rich corner. However, the calculated phase equilibria in the Cu-rich corner are only topologically correct; the lack of experimental data in that corner leaves the phase relationships undetermined. Those results can serve as a guide for future materials researchers to carry out key experiments to establish the phase equilibria in that portion of the system. An integrated approach coupling phase diagram calculation with solidification models was employed to calculate the paths of solidification for multicomponent alloys. A one-dimensional modified Scheil model was used to calculate the microsegregation during the course of solidification of <span class="hlt">Al</span>-rich <span class="hlt">Al</span>-Mg-Cu ternary alloys. Calculated results for fraction of solid formed during the course of solidification and concentration profiles across the dendrites or cells were compared with data obtained from batch-type and directional solidification experiments. While significant discrepancies were observed between the calculation using the basic Scheil model and the experimental data, the calculated results incorporating back diffusion in the solid approach the experimental data.</p> <div class="credits"> <p class="dwt_author">Zuo, Yue</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">337</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2013JMEP...22.2098S"> <span id="translatedtitle">The Nature of Interfaces in <span class="hlt">Al</span>-1050/<span class="hlt">Al</span>-1050 and <span class="hlt">Al</span>-1050/Mg-AZ31 Couples Joined by Magnetic Pulse Welding (MPW)</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">The microstructure and the phase composition of the interfaces of <span class="hlt">Al</span>-1050/<span class="hlt">Al</span>-1050 and <span class="hlt">Al</span>-1050/Mg-AZ31 magnetic pulse welding (MPW) joints were characterized by SEM and TEM analyses. The mechanical properties were tested by nanoindentation. Properties of the <span class="hlt">Al</span>-1050/<span class="hlt">Al</span>-1050 interface joint were established. The interface is almost free from <span class="hlt">Al</span>3Fe precipitates, which are present in the base metal. The hardness value is higher than that of the base metal; however, values of the Young's modulus of the interface and base metal are similar. It was suggested that the interface evolution in the <span class="hlt">Al</span>-1050/<span class="hlt">Al</span>-1050 system includes local melting and rapid solidification of the base materials. A wavy shaped heterogeneous interface was detected in the <span class="hlt">Al</span>-1050/Mg-AZ31 joints. Some areas are free from visible intermetallic phases (IMPs), while others contain pockets of relatively coarse intermetallic precipitates. The presence of a relatively large fraction of globular porosity at the interface indicates that local melting takes place in the course of MPW. TEM characterization of regions free of IMPs at the interface reveals regions consisting of fcc supersaturated <span class="hlt">Al</span>-Mg solid solution, apparently formed as a result of local mechanical alloying during MPW. In other regions, the composition and structure correspond to the Mg17<span class="hlt">Al</span>12 phase, which was probably formed by local melting and rapid solidification.</p> <div class="credits"> <p class="dwt_author">Stern, A.; Aizenshtein, M.; Moshe, G.; Cohen, S. R.; Frage, N.</p> <p class="dwt_publisher"></p> <p class="publishDate">2013-07-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">338</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2012ChPhL..29j8501L"> <span id="translatedtitle">Enhanced Light Extraction in <span class="hlt">Al</span>InGaN UV Light-Emitting Diodes by an Embedded <span class="hlt">AlN/Al</span>GaN Distributed Bragg Reflector</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">A novel kind of <span class="hlt">Al</span>InGaN ultraviolet (UV) light-emitting diode (LED) with an embedded <span class="hlt">AlN/Al</span>0.3Ga0.7N distributed Bragg reflector (DBR) is proposed to enhance light extraction efficiency (LEE). The simulation technique we adopt to calculate the LEE of LEDs is based on the theory of spontaneous emission in a layered medium, the well-known mode-matching technique and the scattering matrix approach. The <span class="hlt">AlN/Al</span>0.3Ga0.7N DBR was intentionally designed to have peak reflectivity at the LED emission wavelength and the optical properties of the DBR were simulated by using the transfer matrix method. A high LEE of 45.7% at 370 nm wavelength was predicted for a proposed <span class="hlt">Al</span>InGaN UV LED consisting of 24 periods of the <span class="hlt">AlN/Al</span>0.3Ga0.7N DBR, which is 1.5 times of that of the conventional <span class="hlt">Al</span>InGaN UV LED. The investigation shows that the <span class="hlt">AlN/Al</span>0.3Ga0.7N DBR grown on GaN templates with sapphire as a substrate by MOCVD can enhance the LEE effectively and would be very promising for the fabrication of high performance GaN-based UV LEDs.</p> <div class="credits"> <p class="dwt_author">Liu, Hui; Zhao, Heng; Hou, Jin; Liu, Dan; Gao, Yi-Hua</p> <p class="dwt_publisher"></p> <p class="publishDate">2012-10-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">339</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2015SurSc.633....1F"> <span id="translatedtitle">On the structural development during ultrathin amorphous <span class="hlt">Al</span>2O3 film growth on <span class="hlt">Al</span>(111) and <span class="hlt">Al</span>(100) surfaces by thermal oxidation</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">The structural developments during growth of ultrathin amorphous <span class="hlt">Al</span>2O3 film on bare <span class="hlt">Al</span>(100) and <span class="hlt">Al</span>(111) surfaces, by dry thermal oxidation in the oxygen partial pressure range of 1 × 10- 5-1.0 Pa at 300 K, were investigated as function of the oxide-film thickness by (local) chemical state analysis using angle-resolved X-ray photoelectron spectroscopy in combination with low electron energy diffraction and cross-sectional high resolution transmission electron microscopy. The effect of the dielectric discontinuity, at the interfaces of the surficial <span class="hlt">Al</span>2O3 film has been determined quantitatively and has been subtracted from the observed chemical shifts of the core level photoelectron binding energies as well as from the observed Auger transition kinetic energies. It is revealed that ultrathin amorphous <span class="hlt">Al</span>2O3 films on the <span class="hlt">Al</span>(111) and <span class="hlt">Al</span>(100) surfaces experience remarkably different structural developments upon growth.</p> <div class="credits"> <p class="dwt_author">Flötotto, D.; Wang, Z. M.; Mittemeijer, E. J.</p> <p class="dwt_publisher"></p> <p class="publishDate">2015-03-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">340</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/40059207"> <span id="translatedtitle">Ti\\/<span class="hlt">Al</span>\\/Ti\\/Au and V\\/<span class="hlt">Al</span>\\/V\\/Au Contacts to Plasma-Etched n <span class="hlt">Al</span> 0.58 Ga 0.42 N</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Cross-sectional transmission electron microscopy was used to study annealed Ti\\/<span class="hlt">Al</span>\\/Ti\\/Au and V\\/<span class="hlt">Al</span>\\/V\\/Au ohmic contacts to as-received\\u000a and plasma-etched n-<span class="hlt">Al</span>0.58Ga0.42N. The reaction depth of low-resistance V-based contacts to as-received n-<span class="hlt">Al</span>0.58Ga0.42N is very limited, unlike previously reported \\u0009Ti-based contacts to n-<span class="hlt">Al</span>\\u000a x\\u000a Ga1?x\\u000a N. In the present study, the Ti\\/<span class="hlt">Al</span>\\/Ti\\/Au contacts to as-received n-<span class="hlt">Al</span>0.58Ga0.42N required much higher annealing temperatures than the V-based</p> <div class="credits"> <p class="dwt_author">M. A. Miller; B. H. Koo; K. H. A. Bogart; S. E. Mohney</p> <p class="dwt_publisher"></p> <p class="publishDate">2008-01-01</p> </div> </div> </div> </div> <div id="filter_results_form" class="filter_results_form floatContainer" style="visibility: visible;"> <div style="width:100%" id="PaginatedNavigation" class="paginatedNavigationElement"> <a id="FirstPageLink" onclick='return showDiv("page_1");' href="#" title="First Page"> <img id="FirstPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.first.18x20.png" alt="First Page" /></a> <a id="PreviousPageLink" onclick='return showDiv("page_16");' href="#" title="Previous Page"> <img id="PreviousPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.previous.18x20.png" alt="Previous Page" /></a> <span id="PageLinks" class="pageLinks"> <span> <a onClick='return showDiv("page_1");' href="#">1</a> <a onClick='return showDiv("page_2");' href="#">2</a> <a onClick='return showDiv("page_3");' href="#">3</a> <a onClick='return showDiv("page_4");' 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class="Icon" src="http://www.science.gov/scigov/images/icon.first.18x20.png" alt="First Page" /></a> <a id="PreviousPageLink" onclick='return showDiv("page_17");' href="#" title="Previous Page"> <img id="PreviousPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.previous.18x20.png" alt="Previous Page" /></a> <span id="PageLinks" class="pageLinks"> <span> <a onClick='return showDiv("page_1");' href="#">1</a> <a onClick='return showDiv("page_2");' href="#">2</a> <a onClick='return showDiv("page_3");' href="#">3</a> <a onClick='return showDiv("page_4");' href="#">4</a> <a onClick='return showDiv("page_5");' href="#">5</a> <a onClick='return showDiv("page_6");' href="#">6</a> <a onClick='return showDiv("page_7");' href="#">7</a> <a onClick='return showDiv("page_8");' href="#">8</a> <a onClick='return showDiv("page_9");' href="#">9</a> <a onClick='return showDiv("page_10");' href="#">10</a> <a onClick='return showDiv("page_11");' href="#">11</a> <a onClick='return showDiv("page_12");' href="#">12</a> <a onClick='return showDiv("page_13");' href="#">13</a> <a onClick='return showDiv("page_14");' href="#">14</a> <a onClick='return showDiv("page_15");' href="#">15</a> <a onClick='return showDiv("page_16");' href="#">16</a> <a onClick='return showDiv("page_17");' href="#">17</a> <a style="font-weight: bold;">18</a> <a onClick='return showDiv("page_19");' href="#">19</a> <a onClick='return showDiv("page_20");' href="#">20</a> <a onClick='return showDiv("page_21");' href="#">21</a> <a onClick='return showDiv("page_22");' href="#">22</a> <a onClick='return showDiv("page_23");' href="#">23</a> <a onClick='return showDiv("page_24");' href="#">24</a> <a onClick='return showDiv("page_25");' href="#">25</a> </span> </span> <a id="NextPageLink" onclick='return showDiv("page_19");' href="#" title="Next Page"> <img id="NextPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.next.18x20.png" alt="Next Page" /></a> <a id="LastPageLink" onclick='return showDiv("page_25.0");' href="#" title="Last Page"> <img id="LastPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.last.18x20.png" alt="Last Page" /></a> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">341</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2011E%26PSL.304..468S"> <span id="translatedtitle">Resetting, errorchrons and the meaning of canonical CAI initial 26<span class="hlt">Al</span>/ 27<span class="hlt">Al</span> values</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">The difference between the precise MC-ICPMS analyses of bulk calcium-aluminum-rich inclusion (CAI) fragments (e.g., Jacobsen et <span class="hlt">al</span>., 2008) and supra-canonical values obtained by micro-analytical techniques, e.g., laser ablation MC-ICPMS (Young et <span class="hlt">al</span>., 2005) and SIMS (Taylor et <span class="hlt">al</span>., 2005), at face value seems to be problematic and therefore leads many to dismiss claims of the solar system ( 26<span class="hlt">Al</span>/ 27<span class="hlt">Al</span>) 0 greater than ~ 5 × 10 -5 as spurious. Here we use mass balance calculations to quantify the importance of open system isotopic exchange during CAI evolution and show that in situ supra-canonical, in-situ canonical, and bulk canonical measurements can all exist for an individual CAI. The calculations describe mechanisms of isotopic exchange that may have occurred early (100's ka) and late (~ 1.5 Ma) in the solar nebula and much later (> 10's Ma) on parent body planetesimals. A range of possible modal mineralogies is modeled in order to populate the compositional space defined by in situ and bulk CAI measurements. In support of these simulated data we describe in situ measurements of 27<span class="hlt">Al</span>/ 24Mg, 25Mg/ 24Mg, and 26Mg/ 24Mg obtained by LA-MC-ICPMS comprising core-to-rim traverses across three CV3 CAIs. The CAIs exhibit distinctive Mg isotopic zoning profiles and varying abundances of daughter products of the short-lived nuclide 26<span class="hlt">Al</span> that are consistent with varying amounts of open system isotope exchange.</p> <div class="credits"> <p class="dwt_author">Simon, Justin I.; Young, Edward D.</p> <p class="dwt_publisher"></p> <p class="publishDate">2011-04-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">342</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/25041826"> <span id="translatedtitle">Interfacial microstructure and growth mechanism of <span class="hlt">Al</span>4C3 in Grf/<span class="hlt">Al</span> composites fabricated by liquid pressure method.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">In this study, Grf/<span class="hlt">Al</span> composite was fabricated by liquid pressure method. The diffusion layer and the nucleation and growth of <span class="hlt">Al</span>4C3 were observed at the interface of Grf/<span class="hlt">Al</span> composites by TEM and HRTEM. The growth mechanism of <span class="hlt">Al</span>4C3 was analyzed in detail by crystallography theory. It was found that <span class="hlt">Al</span>4C3 had no phase relations with the carbon fiber. (0001) layer of <span class="hlt">Al</span>4C3 was parallel with main growth direction. Both the diffusion layer at the interface and crystal structure of <span class="hlt">Al</span>4C3 affected the shape of <span class="hlt">Al</span>4C3. At a certain position, <span class="hlt">Al</span>4C3 could connect two fibers when the fibers were close to each other. PMID:25041826</p> <div class="credits"> <p class="dwt_author">Xu, Wang; Chenchong, Wang; Zhichao, Zhang; Ping, Liang; Yanhua, Shi; Guofu, Zhang</p> <p class="dwt_publisher"></p> <p class="publishDate">2014-10-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">343</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2009JNuM..395..162K"> <span id="translatedtitle">Interdiffusion between U(Mo,Pt) or U(Mo,Zr) and <span class="hlt">Al</span> or <span class="hlt">Al</span> A356 alloy</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">Solid state reactions in chemical diffusion couples U-7 wt.%Mo-0.9 wt.%Pt/<span class="hlt">Al</span> at 580 °C and U-7 wt.%Mo-0.9 wt.%Pt/<span class="hlt">Al</span> A356 alloy, U-7 wt.%Mo-1 wt.%Zr/<span class="hlt">Al</span> and U-7 wt.%Mo-1 wt.%Zr/<span class="hlt">Al</span> A356 alloy at 550 °C were characterized. Results were obtained from optical and scanning electron microscopy, electron probe microanalysis and X-ray diffraction. The UAl 3, UAl 4 and <span class="hlt">Al</span> 20Mo 2U phases were identified in the interaction layers of ?U(Mo,Pt)/<span class="hlt">Al</span> and ?U(Mo,Zr)/<span class="hlt">Al</span> diffusion couples. <span class="hlt">Al</span> 43Mo 4U 6 ternary compound was also identified in ?U(Mo,Zr)/<span class="hlt">Al</span> due to the decomposition of ?U(Mo,Zr) phase. The U(<span class="hlt">Al</span>,Si) 3 and U 3Si 5 phases were identified in the interaction layers of ?U(Mo,Pt)/<span class="hlt">Al</span> A356 and ?U(Mo,Zr)/<span class="hlt">Al</span> A356 diffusion couples. These phases are formed due to the migration of Si to the interaction layer. In the diffusion couple U(Mo,Zr)/<span class="hlt">Al</span> A356, Zr 5<span class="hlt">Al</span> 3 phase was also identified in the interaction layer. The use of synchrotron radiation at Brazilian Synchrotron Light Laboratory (LNLS, CNPq, Campinas, Brazil) was necessary to achieve a complete crystallographic characterization.</p> <div class="credits"> <p class="dwt_author">Komar Varela, C.; Mirandou, M.; Aricó, S.; Balart, S.; Gribaudo, L.</p> <p class="dwt_publisher"></p> <p class="publishDate">2009-12-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">344</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2014JKPS...65.1101Z"> <span id="translatedtitle">Properties of an <span class="hlt">AlGaN/Al</span>N distributed-Bragg-reflector structure</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">An <span class="hlt">AlGaN/Al</span>N distributed-Bragg-reflector (DBR) structure with a high <span class="hlt">Al</span> content was grown by using plasma-assisted molecular beam epitaxy (PA-MBE). The properties of the sample were characterized by using the transmission electron microscopy, high-resolution X-ray diffraction, atomic force microscopy, and reflectivity spectrum measurements. The reciprocal space mapping analysis indicated that the strain in the <span class="hlt">Al</span>GaN layers was partially relaxed. The morphology of the DBR exhibited a surface covered by grains (average size of about 130 nm), and the surface roughness was about 2 nm. The spectral measurements showed that the DBR structure presented a peak reflectivity of 68.8% at the center wavelength of 247 nm, which indicated that this DBR structure could work in the deep solar-blind UV region with acceptable reflectivity. However, the optical properties of the DBR structure were deteriorated by the fluctuation of the <span class="hlt">Al</span> composition, non-uniformity of the layer thickness, the blurry, rough interface in the DBR structure, and so on.</p> <div class="credits"> <p class="dwt_author">Zhang, Li-Li; Liu, Zhan-Hui; Huang, Xiao-Gu; Li, Qing-Fang; Zhang, Rong; Xie, Zi-Li; Xiu, Xiang-Qian</p> <p class="dwt_publisher"></p> <p class="publishDate">2014-10-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">345</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2014RMxAC..44Q.167S"> <span id="translatedtitle"><span class="hlt">ALS</span> 2883: Analysis of spectroscopic features</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary"><span class="hlt">ALS</span> 2883 (RA 13^{h} 02^{m} 47^{s}, DEC -63^{o} 50' 08'', M_{v} 10.1) is the first known radio pulsar with an emission B-type companion system, discovered in 1992. The Be companion of <span class="hlt">ALS</span> 2883 has all line profiles in the visible range in emission. This emission is a common hallmark among many Be stars, and this effect is thought to be due to the presence of a circumstellar environment. Also, the star is orbiting a X-ray source as has been detected by the XMM-Newton Science Operation Center. In this study, we present the observations of <span class="hlt">ALS</span> 2883 made at the OPD/LNA 1.60 m telescope with the Coudé spectrograph in the range 4000 to 5000 Å and S/N simeq 200, performed in April 2011. First-order estimations of T_{eff} and log g parameters have been performed through Johnson's UBV and JHK photometric calibrations. Projected rotation velocity V sin i has been estimated through the mean of the first zeroes of the Fourier transforms of neutral helium rotation profiles adopting linear, quadratic and square-root limb-darkening laws. The physical conditions of the circumstellar envelope were estimated through the solution of the radiative transport equation assuming local thermodynamic equilibrium within a disk-shaped circumstellar environment with a Keplerian velocity field. The radiative transport equation is solved assuming the Roche model as a boundary condition in the circumstellar environment. Iterating the computations with a downhill-simplex algorithm, this analysis leads to a best solution for an envelope with T simeq 9500 K, gas density ? simeq 2 × 10^{-15} g.cm^{-3}, internal radius r_{i} simeq 8 R_{odot} and external radius r_e simeq 30 R_{odot}, rotating with V_{rot} simeq 140 km.s^{-1} and expanding with V_{exp} simeq 90 km.s^{-1}.</p> <div class="credits"> <p class="dwt_author">Silva, A. R.; Levenhagen, R. S.; Künzel, R.; Leister, N. V.</p> <p class="dwt_publisher"></p> <p class="publishDate">2014-10-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">346</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/50250615"> <span id="translatedtitle">Chemical structures of <span class="hlt">AlGaN\\/Al</span>N\\/Si [111] by MOCVD using AES and XPS</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">In this paper X-ray photoelectron spectrum and Auger electron spectrum were used to study the microstructure of <span class="hlt">AlGaN\\/Al</span>N\\/Si [111] grown by metal organic chemical vapor deposition. The results indicated that a broad transition region, composed of <span class="hlt">Al</span>N, Si3N4, SiNx (x<4\\/3) and Si was present at the interface of <span class="hlt">Al</span>N\\/Si. At the interface of <span class="hlt">AlGaN\\/Al</span>N, the main incorporation of N shifted</p> <div class="credits"> <p class="dwt_author">Dongjuan Xi; Youdou Zheng; Peng Chen; Zuoming Zhao; Ping Chen; Shiyong Xie; Bo Shen; Shulin Gu; Rong Zhang</p> <p class="dwt_publisher"></p> <p class="publishDate">2001-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">347</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/biblio/21194991"> <span id="translatedtitle">Growth and characterization of Ti<span class="hlt">AlN/CrAl</span>N superlattices prepared by reactive direct current magnetron sputtering</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">Ti<span class="hlt">Al</span>N and Cr<span class="hlt">Al</span>N coatings were prepared using a reactive direct current magnetron sputtering system from Ti<span class="hlt">Al</span> and Cr<span class="hlt">Al</span> targets. Structural characterization of the coatings using x-ray diffraction (XRD) revealed the B1 NaCl structure of Ti<span class="hlt">Al</span>N and Cr<span class="hlt">Al</span>N coatings with a prominent reflection along the (111) plane. The XPS data confirmed the bonding structures of Ti<span class="hlt">Al</span>N and Cr<span class="hlt">Al</span>N single layer coatings. Subsequently, nanolayered multilayer coatings of Ti<span class="hlt">AlN/CrAl</span>N were deposited on silicon and mild steel (MS) substrates at different modulation wavelengths ({lambda}) with a total thickness of approximately 1.0 {mu}m. The modulation wavelengths were calculated from the x-ray reflectivity data using modified Bragg's law. Ti<span class="hlt">AlN/CrAl</span>N multilayer coatings were textured along (111) for {lambda}<200 A and the XRD patterns showed the formation of superlattice structure for coatings deposited at {lambda}=102 A. The x-ray reflectivity data showed reflections of fifth and seventh orders for multilayer coatings deposited at {lambda}=102 and 138 A, respectively, indicating the formation of sharp interfaces between Ti<span class="hlt">Al</span>N and Cr<span class="hlt">Al</span>N layers. The cross-sectional scanning electron microscopy image of Ti<span class="hlt">AlN/CrAl</span>N multilayer coatings indicated a noncolumnar and dense microstructure. A maximum hardness of 39 GPa was observed for Ti<span class="hlt">AlN/CrAl</span>N multilayer coatings deposited at {lambda}=93 A, which was higher than the rule-of-mixture value (30 GPa) for Ti<span class="hlt">Al</span>N and Cr<span class="hlt">Al</span>N. Study of thermal stability of the coatings in air using micro-Raman spectroscopy indicated that the Ti<span class="hlt">AlN/CrAl</span>N multilayer coatings were stable up to 900 deg. C in air. Ti<span class="hlt">AlN/CrAl</span>N multilayer coatings also exhibited improved corrosion resistance when compared to the MS substrate.</p> <div class="credits"> <p class="dwt_author">Barshilia, Harish C.; Deepthi, B.; Rajam, K. S.; Bhatti, Kanwal Preet; Chaudhary, Sujeet [Surface Engineering Division, National Aerospace Laboratories, Post Bag No. 1779, Bangalore 560 017 (India); Department of Physics, Indian Institute of Technology, Delhi, New Delhi 110 016 (India)</p> <p class="dwt_publisher"></p> <p class="publishDate">2009-01-15</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">348</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/11619397"> <span id="translatedtitle">Preparation of ethereal oils (<span class="hlt">Al</span>-Duhoun) by Ibn <span class="hlt">Al</span>-Quff (13th century A.D.).</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">Ibn <span class="hlt">Al</span>-Quff was born in Damascus. He learned medicine from Ibn Abi Usaibia. Ibn <span class="hlt">Al</span>-Quff was excelled in medicine as well as in Surgery. He wrote several books, of which was "<span class="hlt">Al</span>-Qumdah" (The Authority on Surgery). Another book was "<span class="hlt">Al</span>-Shafi" (The Healer) on medicine. In the book "The Authority on Surgery", Ibn <span class="hlt">Al</span>-Quff has devoted a special chapter, on the preparation of ethereal oils, which was commonly known as <span class="hlt">Al</span>-Duhoun. He has described about 34 different oils together with their medical action. PMID:11619397</p> <div class="credits"> <p class="dwt_author">El-Gammal, S Y</p> <p class="dwt_publisher"></p> <p class="publishDate">1996-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">349</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/43075643"> <span id="translatedtitle">Plastic deformation behaviour and deformation substructure in <span class="hlt">Al</span>-rich Ti<span class="hlt">Al</span> single crystals deformed at high temperatures</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Plastic deformation behaviour in Ti–54.7at.%<span class="hlt">Al</span> and Ti–58.0at.%<span class="hlt">Al</span> single crystals was examined around and above the anomalous strengthening peak temperature (Tp) focusing on the effect of <span class="hlt">Al</span>5Ti3 superstructure. The <span class="hlt">Al</span>5Ti3 superstructure developed in the L10 matrix of Ti–58.0at.%<span class="hlt">Al</span>, and the size of the <span class="hlt">Al</span>5Ti3 phase once increased during annealing at 800°C and then decreased with increasing temperature, while no significant evidence</p> <div class="credits"> <p class="dwt_author">K. Hayashi; T Nakano; Y Umakoshi</p> <p class="dwt_publisher"></p> <p class="publishDate">2001-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">350</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2014ApPhL.104n1904S"> <span id="translatedtitle">Nanoindentation of Ni<span class="hlt">Al</span> and Ni3<span class="hlt">Al</span> crystals on (100), (110), and (111) surfaces: A molecular dynamics study</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">Molecular dynamics simulations were performed to study the nanoindentation of Ni<span class="hlt">Al</span> and Ni3<span class="hlt">Al</span> crystals on three surfaces: (100), (110), and (111). The calculated load-displacement curves show discrete drops at certain indentation depths, indicating dislocation bursts during indentation. The hardness values for the two materials were found to depend significantly on the indented crystallographic plane: the (100) surface is the softest for Ni<span class="hlt">Al</span> and the hardest for Ni3<span class="hlt">Al</span>. We also found distinctive deformation activities in the subsurface region in Ni3<span class="hlt">Al</span> crystals, while dislocation loops propagate deep into the substrate in Ni<span class="hlt">Al</span> systems.</p> <div class="credits"> <p class="dwt_author">Seymour, Richard; Hemeryck, Anne; Nomura, Ken-ichi; Wang, Weiqiang; Kalia, Rajiv K.; Nakano, Aiichiro; Vashishta, Priya</p> <p class="dwt_publisher"></p> <p class="publishDate">2014-04-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">351</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/doepatents/biblio/865693"> <span id="translatedtitle">Acoustic resonator with <span class="hlt">Al</span> electrodes on an <span class="hlt">Al</span>N layer and using a GaAs substrate</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/doepatents">DOEpatents</a></p> <p class="result-summary">A method of fabricating an acoustic wave resonator wherein all processing steps are accomplished from a single side of said substrate. The method involves deposition of a multi-layered <span class="hlt">Al/Al</span>N structure on a GaAs substrate followed by a series of fabrication steps to define a resonator from said composite. The resulting resonator comprises an <span class="hlt">Al</span>N layer between two <span class="hlt">Al</span> layers and another layer of <span class="hlt">Al</span>N on an exterior of one of said <span class="hlt">Al</span> layers.</p> <div class="credits"> <p class="dwt_author">Kline, Gerald R. (Ames, IA); Lakin, Kenneth M. (Ames, IA)</p> <p class="dwt_publisher"></p> <p class="publishDate">1985-12-03</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">352</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/servlets/purl/495821"> <span id="translatedtitle">Orbit stability of the <span class="hlt">ALS</span> storage ring</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">The Advanced Light Source (<span class="hlt">ALS</span>) storage ring, a synchrotron light source of the third generation, is specified to maintain its electron orbit stable within one tenth of the rms beam size. In the absence of a dedicated orbit feed-back system, several orbit-distorting effects were investigated, aided by a new interactive simulation tool, the code TRACY V. The effort has led to a better understanding of the behavior of a variety of accelerator subsystems and in consequence produced a substantial improvement in day-to-day orbit stability.</p> <div class="credits"> <p class="dwt_author">Keller, R.; Nishimura, H.; Biocca, A. [and others</p> <p class="dwt_publisher"></p> <p class="publishDate">1997-05-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">353</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/1987JOM....39k..22P"> <span id="translatedtitle">Tribological Properties of <span class="hlt">Al</span> Alloy Particle Composites</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">In recent years, a variety of particle dispersed aluminum alloy composites have been synthesized. The tribological properties of these materials include sliding wear, friction, seizure resistance and abrasive wear (of composites containing solid lubricant as well as hard ceramic particles). The potential high-performance applications of <span class="hlt">Al</span>-alloy-graphite composites include pistons for internal combustion engines and bearings. For such applications, the low stress abrasive wear rates of composites, containing high volume fractions (0.20-0.35), are comparable to that of heat treated 1045 steel.</p> <div class="credits"> <p class="dwt_author">Prasad, S. V.; Rohatgi, P. K.</p> <p class="dwt_publisher"></p> <p class="publishDate">1987-11-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">354</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://imsc.usc.edu/retreat2014/presentations/IMSC_retreat_2014_Yinghao.pdf"> <span id="translatedtitle">Persistent People Tracking with Geospa4<span class="hlt">al</span> Image Filtering (GIFT)</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">1 Persistent People Tracking with Geospa4<span class="hlt">al</span> Image Filtering (GIFT University of Southern California #12;2 · Geospa*<span class="hlt">al</span> Image Filtering Tool (GIFT) · Persistent Surveillance with GIFT · Other applica*ons of GIFT Outline #12</p> <div class="credits"> <p class="dwt_author">Shahabi, Cyrus</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">355</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20101102_153710-37964"> <span id="translatedtitle">InAs/<span class="hlt">Al</span>Sb short wavelength quantum cascade lasers.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">??Application of InAs/<span class="hlt">Al</span>Sb materials system for development of short-wavelength quantum cascade lasers is explored. Molecular beam epitaxy (MBE) technology allowing to grow multiperiodical unstrained InAs/<span class="hlt">Al</span>Sb… (more)</p> <div class="credits"> <p class="dwt_author">Devenson, Jan</p> <p class="dwt_publisher"></p> <p class="publishDate">2010-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">356</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/biblio/20879955"> <span id="translatedtitle">The microstructure and stability of <span class="hlt">Al/Al</span>N multilayered films</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary"><span class="hlt">Al/Al</span>N multilayers with bilayer thicknesses ranging from 10 to 50 nm were fabricated using a filtered cathodic arc deposition system. The effects on the microstructure of using two different deposition rates and applying an 8 kV pulsed voltage (plasma immersion ion implantation or PIII) to the substrate were explored. The microstructure was found to undergo a transition in which the <span class="hlt">Al</span> transformed from layers to an aggregated phase under some conditions. This behavior is explained by a model in which the aggregation process is limited by diffusion. High deposition rates and the application of PIII were both found to encourage the transition by increasing diffusion. The model defines a phase diagram which predicts whether a multilayer or an aggregated structure will occur. A maximum in intrinsic stress was found to occur when the average feature size was 15 nm for both layers and aggregates.</p> <div class="credits"> <p class="dwt_author">Xiao, X. L.; McCulloch, D. G.; McKenzie, D. R.; Bilek, M. M. M. [Applied Physics, School of Applied Sciences, RMIT University, City Campus, G.P.O. Box 2476V, Melbourne, 3001 Victoria (Australia); Applied and Plasma Physics, School of Physics (A28), University of Sydney, Sydney, 2006 New South Wales (Australia)</p> <p class="dwt_publisher"></p> <p class="publishDate">2006-07-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">357</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2012APS..MAR.K1048M"> <span id="translatedtitle">Precipitant diffusion and surface segregation in <span class="hlt">Al</span> Alloys near melting point: <span class="hlt">Al</span> 2024</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">Industrial <span class="hlt">Al</span> alloys are precipitant hardened with an impurity phase. Micro precipitants introduce various novel physical properties to the systems system. The diffusion of these constituents under thermal gradient was studied by sequentially increasing temperatures near melting point as it was observed to better facilitate the migration of precipitants. Study is based on <span class="hlt">Al</span> 2024, age hardened, high strength <span class="hlt">AL</span> alloy, annealed at incremental temperatures near melting point of 500 C and was observed in Scanning Electron Microscopy (SEM) and Energy Dispersive X ray Spectroscopy (EDX). Solvent cleaned near surface region of the alloy was investigated with observation of differential migration of constituent Cu, Fe Mg and Zn precipitants. The migrations were modeled in terms of diffusion coefficients and established literature of the participating species. Study will attempt to correlate the elemental concentration variation with applied elevated heat stress in industrial settings.</p> <div class="credits"> <p class="dwt_author">Mohney, Austin; Senevirathne, Indrajith</p> <p class="dwt_publisher"></p> <p class="publishDate">2012-02-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">358</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=19780069154&hterms=HR+diagrams&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D90%26Ntt%3D%2528HR%2Bdiagrams%2529"> <span id="translatedtitle">Reaction diffusion in the NiCr<span class="hlt">Al</span> and CoCr<span class="hlt">Al</span> systems</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p class="result-summary">The paper assesses the effect of overlay coating and substrate composition on the kinetics of coating depletion by interdiffusion. This is accomplished by examining the constitution, kinetics and activation energies for a series of diffusion couples primarily of the NiCr<span class="hlt">Al</span>/Ni-10Cr or CoCr<span class="hlt">Al</span>/Ni-10Cr type annealed at temperatures in the range 1000-1205 C for times up to 500 hr. A general procedure is developed for analyzing diffusion in multicomponent multiphase systems. It is shown that by introducing the concept of beta-source strength, which can be determined from appropriate phase diagrams, the Wagner solution for consumption of a second phase in a semiinfinite couple is successfully applied to the analysis of MCr<span class="hlt">Al</span> couples. Thus, correlation of beta-recession rate constants with couple composition, total and diffusional activation energies, and interdiffusion coefficients are determined.</p> <div class="credits"> <p class="dwt_author">Levine, S. R.</p> <p class="dwt_publisher"></p> <p class="publishDate">1978-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">359</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=19930060673&hterms=Al2O3&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D40%26Ntt%3DAl2O3"> <span id="translatedtitle">Investigation of etching techniques for superconductive Nb/<span class="hlt">Al-Al</span>2O3/Nb fabrication processes</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p class="result-summary">Wet etching, CF4 and SF6 reactive ion etching (RIE), RIE/wet hybrid etching, Cl-based RIE, ion milling, and liftoff techniques have been investigated for use in superconductive Nb/<span class="hlt">Al-Al</span>2O3/Nb fabrication processes. High-quality superconductor-insulator-superconductor (SIS) junctions have been fabricated using a variety of these etching methods; however, each technique offers distinct tradeoffs for a given process an wafer design. In particular, it was shown that SF6 provides an excellent RIE chemistry for low-voltage anisotropic etching of Nb with high selectivity to <span class="hlt">Al</span>. The SF6 tool has greatly improved the trilevel resist junction insulation process. Excellent repeatability, selectivity with respect to quartz, and submicron resolution make Cl2 + BCl3 + CHCl3 RIE a very attractive process for trilayer patterning.</p> <div class="credits"> <p class="dwt_author">Lichtenberger, A. W.; Lea, D. M.; Lloyd, F. L.</p> <p class="dwt_publisher"></p> <p class="publishDate">1993-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">360</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/biblio/958938"> <span id="translatedtitle">FORMING <span class="hlt">Al-Al</span>2O3 NANOCOMPOSITE SURFACES USING FRICTION STIR PROCESSING</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">This study presents a solid state surface engineering process to form a nanocomposite layer on aluminum surface. Friction stir processing (FSP) was used to stir and mix nano-sized <span class="hlt">Al</span>2O3 particles into a commercially pure aluminum surface to form an <span class="hlt">Al-Al</span>2O3 nanocomposite layer of up to several millimeters thick. Compared with a non-processed aluminum surface, a nanocomposite surface with 15 vol% nano-particles has demonstrated increased hardness (by 3X) and yield strength (by 10X), and reduced friction coefficient (by 55%) and wear rate (by 100X). Transmission electron microscopy (TEM) has revealed high matrix dislocation density in the nanocomposite surface that is believed to be largely responsible to such significant property improvements. Neutron diffraction measurements suggested tensile residual stress in the aluminum matrix. The stress was mainly induced by thermal-expansion-mismatch between aluminum and alumina.</p> <div class="credits"> <p class="dwt_author">Qu, Jun [ORNL; Xu, Hanbing [ORNL; Feng, Zhili [ORNL; An, Ke [ORNL; Battiste, Rick [ORNL; An, Linan [University of Central Florida; Heinrich, Helge [University of Central Florida</p> <p class="dwt_publisher"></p> <p class="publishDate">2009-01-01</p> </div> </div> </div> </div> <div id="filter_results_form" class="filter_results_form floatContainer" style="visibility: visible;"> <div style="width:100%" id="PaginatedNavigation" class="paginatedNavigationElement"> <a id="FirstPageLink" onclick='return showDiv("page_1");' href="#" title="First Page"> <img id="FirstPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.first.18x20.png" alt="First Page" /></a> <a id="PreviousPageLink" onclick='return showDiv("page_17");' href="#" title="Previous Page"> <img id="PreviousPageLinkImage" class="Icon" 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<a onClick='return showDiv("page_6");' href="#">6</a> <a onClick='return showDiv("page_7");' href="#">7</a> <a onClick='return showDiv("page_8");' href="#">8</a> <a onClick='return showDiv("page_9");' href="#">9</a> <a onClick='return showDiv("page_10");' href="#">10</a> <a onClick='return showDiv("page_11");' href="#">11</a> <a onClick='return showDiv("page_12");' href="#">12</a> <a onClick='return showDiv("page_13");' href="#">13</a> <a onClick='return showDiv("page_14");' href="#">14</a> <a onClick='return showDiv("page_15");' href="#">15</a> <a onClick='return showDiv("page_16");' href="#">16</a> <a onClick='return showDiv("page_17");' href="#">17</a> <a onClick='return showDiv("page_18");' href="#">18</a> <a style="font-weight: bold;">19</a> <a onClick='return showDiv("page_20");' href="#">20</a> <a onClick='return showDiv("page_21");' href="#">21</a> <a onClick='return showDiv("page_22");' href="#">22</a> <a onClick='return showDiv("page_23");' href="#">23</a> <a onClick='return showDiv("page_24");' href="#">24</a> <a onClick='return showDiv("page_25");' href="#">25</a> </span> </span> <a id="NextPageLink" onclick='return showDiv("page_20");' href="#" title="Next Page"> <img id="NextPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.next.18x20.png" alt="Next Page" /></a> <a id="LastPageLink" onclick='return showDiv("page_25.0");' href="#" title="Last Page"> <img id="LastPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.last.18x20.png" alt="Last Page" /></a> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">361</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www-astro.physics.ox.ac.uk/~bureau/Publications/poster_NGC2974_AAS_07.pdf"> <span id="translatedtitle">NGC2974 MDM Image (Optical) Bacon R. et <span class="hlt">al</span>., 2001, MNRAS, 326, 23 de Zeeuw P. T., et <span class="hlt">al</span>., 2002, MNRAS, 329, 513 Krajnovic D., et <span class="hlt">al</span>., 2005, MNRAS, 357, 1113</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">NGC2974 MDM Image (Optical) References Bacon R. et <span class="hlt">al</span>., 2001, MNRAS, 326, 23 de Zeeuw P. T., et <span class="hlt">al</span>, 130, 2647 Peletier R. F., et <span class="hlt">al</span>., 1990, AJ, 100, 1091 Trager S. C., et <span class="hlt">al</span>, 2002, AJ, 119, 1645 Early and old stellar populations ?? · SAURON survey (see e.g. Bacon et <span class="hlt">al</span>. 2001 and de Zeeuw et <span class="hlt">al</span>. 2002</p> <div class="credits"> <p class="dwt_author">Bureau, Martin</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">362</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=19890030007&hterms=coal&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D20%26Ntt%3Dcoal"> <span id="translatedtitle">Mechanisms of elevated-temperature deformation in the B2 aluminides Ni<span class="hlt">Al</span> and Co<span class="hlt">Al</span></span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p class="result-summary">A strain rate change technique, developed previously for distinguishing between pure-metal and alloy-type creep behavior, was used to study the elevated-temperature deformation behavior of the intermetallic compounds Ni<span class="hlt">Al</span> and Co<span class="hlt">Al</span>. Tests on Ni<span class="hlt">Al</span> were conducted at temperatures between 1100 and 1300 K while tests on Co<span class="hlt">Al</span> were performed at temperatures ranging from 1200 to 1400 K. Ni<span class="hlt">Al</span> exhibits pure-metal type behavior over the entire temperature range studied. Co<span class="hlt">Al</span>, however, undergoes a transition from pure-metal to alloy-type deformation behavior as the temperature is decreased from 1400 to 1200 K. Slip appears to be inherently more difficult in Co<span class="hlt">Al</span> than in Ni<span class="hlt">Al</span>, with lattice friction effects limiting the mobility of dislocations at a much higher tmeperature in Co<span class="hlt">Al</span> than in Ni<span class="hlt">Al</span>. The superior strength of Co<span class="hlt">Al</span> at elevated temperatures may, therefore, be related to a greater lattice friction strengthening effect in Co<span class="hlt">Al</span> than in Ni<span class="hlt">Al</span>.</p> <div class="credits"> <p class="dwt_author">Yaney, D. L.; Nix, W. D.</p> <p class="dwt_publisher"></p> <p class="publishDate">1988-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">363</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/biblio/230786"> <span id="translatedtitle">Site preference of ternary alloying additions in Fe<span class="hlt">Al</span> and Ni<span class="hlt">Al</span> by first-principles calculations</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">First-principles calculations have been performed to investigate the site preference of ternary alloying additions in Fe<span class="hlt">Al</span> and Ni<span class="hlt">Al</span>. In Fe<span class="hlt">Al</span>, Cr and Ti are found to occupy the <span class="hlt">Al</span> sublattice whereas Ni has a distinct preference for the Fe sublattice. The site substitutional behavior of 3d ternary elements in Fe<span class="hlt">Al</span> can be explained in terms of the trends in the heat-of-formation. In <span class="hlt">Al</span>-rich Ni<span class="hlt">Al</span>, Fe atoms occupy exclusively the Ni sublattice. In Ni-rich Ni<span class="hlt">Al</span>, because of the small enthalpy difference between Fe occupying <span class="hlt">Al</span> and Ni sublattices (i.e. less than 0.1 eV with a preference of Fe for <span class="hlt">Al</span> sites at 0 K), the site distributions of Fe in these alloys are found to vary with alloy composition and temperature. Due to the large difference in the local magnetic moments between Fe atoms occupying <span class="hlt">Al</span> and Ni sublattices (with values of 2.4 {micro}{sub B} and less than 0.1 {micro}{sub B}, respectively) in Ni<span class="hlt">Al</span>, magnetic susceptibility measurement should be the most effective way to measure the site distributions of Fe in Ni<span class="hlt">Al</span>.</p> <div class="credits"> <p class="dwt_author">Fu, C.L.; Zou, J. [Oak Ridge National Lab., TN (United States). Metals and Ceramics Div.] [Oak Ridge National Lab., TN (United States). Metals and Ceramics Div.</p> <p class="dwt_publisher"></p> <p class="publishDate">1996-04-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">364</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2015CryRp..60...23V"> <span id="translatedtitle">Microstructure of the <span class="hlt">Al</span>-La-Ni-Fe system</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">The microstructure of alloys based on the <span class="hlt">Al</span>-La-Ni-Fe system, which are characterized by a unique ability to form metal glasses and nanoscale composites in a wide range of compositions, has been investigated. <span class="hlt">Al</span>85Ni7Fe4La4 and <span class="hlt">Al</span>85Ni9Fe2La4 alloys have been analyzed by electron microscopy (including high-resolution scanning transmission electron microscopy), energy-dispersive X-ray microanalysis, electron diffraction (ED), and X-ray diffraction (XRD). It is found that, along with fcc <span class="hlt">Al</span> and <span class="hlt">Al</span>4La (<span class="hlt">Al</span>11La3) particles, these alloys contain a ternary phase <span class="hlt">Al</span>3Ni1 - x Fe x (sp. gr. Pnma) isostructural to the <span class="hlt">Al</span>3Ni phase and a quaternary phase <span class="hlt">Al</span>8Fe2 - x Ni x La isostructural to the <span class="hlt">Al</span>8Fe2Eu phase (sp. gr. Pbam). The unit-cell parameters of the <span class="hlt">Al</span>3Ni1 - x Fe x and <span class="hlt">Al</span>8Fe2 - x Ni x La compounds, determined by ED and refined by XRD, are a = 0.664(1) nm, b = 0.734(1) nm, and c = 0.490(1) nm for <span class="hlt">Al</span>3Ni1 - x Fe x and a = 1.258(3) nm, b = 1.448(3) nm, and c = 0.405(8) nm for <span class="hlt">Al</span>8Fe2 - x Ni x La. In both cases Ni and Fe atoms are statistically arranged, and no ordering is found. <span class="hlt">Al</span>8Fe2 - x Ni x La particles contain inclusions in the form of <span class="hlt">Al</span>3Fe ? layers.</p> <div class="credits"> <p class="dwt_author">Vasil'ev, A. L.; Ivanova, A. G.; Bakhteeva, N. D.; Kolobylina, N. N.; Orekhov, A. S.; Presnyakov, M. Yu.; Todorova, E. V.</p> <p class="dwt_publisher"></p> <p class="publishDate">2015-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">365</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/1493893"> <span id="translatedtitle">Scaleup of powder metallurgy processed Nb-<span class="hlt">Al</span> multifilamentary wire</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Power metallurgy processed Nb-<span class="hlt">Al</span> superconducting wires were fabricated from billets up to 45 mm o.d. with nominal areal reduction ratios, R, up to 2 X 10⁵, Nb powder sizes from 40 to 300 ..mu..m from various sources, <span class="hlt">Al</span> powder sizes from 9 to 75 ..mu..m, <span class="hlt">Al</span> concentrations from 3 to 25 wt % <span class="hlt">Al</span> and with a wide range of</p> <div class="credits"> <p class="dwt_author">C. Thieme; H. Zhang; J. Otubo; S. Pourrahimi; B. Schwartz; S. Foner</p> <p class="dwt_publisher"></p> <p class="publishDate">1983-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">366</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/biblio/5306913"> <span id="translatedtitle">Formation of aluminum nitride during cryomilling of Ni<span class="hlt">Al</span></span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">Prealloyed Ni<span class="hlt">Al</span> powders were milled in liquid nitrogen, a process known as cryomilling. The materials, formed by extrusion or hot isostatic pressing the cryomilled powders, exhibit higher creep strengths than unreinforced Ni<span class="hlt">Al</span> during slow strain rate compression testing. The increased strength was attributed to the presence of approximately 10 volume percent <span class="hlt">Al</span>N particles which were dispersed along the Ni<span class="hlt">Al</span> prior particle boundaries. The presence of <span class="hlt">Al</span>N particles within a Ni<span class="hlt">Al</span> matrix was not expected based on previous cryomilling work with oxide dispersion strengthened (ODS) nickel and iron alloys by Petkovic-Luton and Vallone. The experiments of Luton, et <span class="hlt">al</span>. on ODS aluminum alloys indicated that reactions between liquid nitrogen and aluminum were possible and led to <span class="hlt">Al</span>(O,N) particles. The hypothesis of Lutton, et <span class="hlt">al</span>. for the formation of the aluminum oxy-nitrides and the absence of <span class="hlt">Al</span>N x-ray diffraction peaks in the spectra from as-cryomilled Ni<span class="hlt">Al</span> powders convinced researchers that: (1) the nitrogen exists as an interstitial or solid solution element in Ni<span class="hlt">Al</span> after cryomilling, and (2) <span class="hlt">Al</span>N precipitates during subsequent thermomechanical processing of the powders. Recent work suggests that this hypothesis is not correct. In an effort to establish the nature of nitrogen in cryomilled Ni<span class="hlt">Al</span>, cryomilled powder particles have been subject to bulk chemical analyses, x-ray diffraction analyses, x-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM). Evidence supporting the existence of <span class="hlt">Al</span>N formation on the surface of cryomilled Ni<span class="hlt">Al</span> powders is presented in this paper.</p> <div class="credits"> <p class="dwt_author">Aikin, B.J.M.; Dickerson, R.M.; Jayne, D.T. (Case Western Reserve Univ., Cleveland, OH (United States)); Farmer, S.; Whittenberger, J.D. (NASA, Cleveland, OH (United States).)</p> <p class="dwt_publisher"></p> <p class="publishDate">1994-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">367</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/servlets/purl/5229288"> <span id="translatedtitle">Precipitation of Kr after implantation into <span class="hlt">Al</span></span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">Transmission electron microscopy (TEM) was used to perform a systematic study of the microstructural evolution in <span class="hlt">Al</span> as a function of the fluence received during 65 keV Kr/sup +/ ion implantation at room temperature. At the lower fluences (2 x 10/sup 16/ to 2 x 10/sup 19/ Kr/sup +/m/sup -2/), isolated dislocation loops and the evolution of a dislocation network was observed by TEM. Above fluences of 10/sup 19/ Kr/sup +/m/sup -2/, the microstructure is dominated by a high density of Kr bubbles whose average size increases with dose. The appearance of additional electron diffraction reflections indicates that the majority of the bubbles contain solid fcc Kr that is epitaxially aligned with the fcc <span class="hlt">Al</span> matrix. Above fluences of 2 x 10/sup 20/ Kr/sup +/m/sup -2/ an increasing fraction of the Kr is in a liquid or gas-like phase. The thermal stability of the microstructure, characteristic of the different fluence regimes, was investigated up to 640/sup 0/C by in situ TEM annealing experiments.</p> <div class="credits"> <p class="dwt_author">Birtcher, R.C.; Jaeger, W.</p> <p class="dwt_publisher"></p> <p class="publishDate">1985-09-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">368</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2005ApSS..252.1959T"> <span id="translatedtitle">Preparation and characterization of carbonate terminated polycrystalline <span class="hlt">Al</span> 2O 3/<span class="hlt">Al</span> films</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">X-ray photoelectron spectroscopy (XPS) was applied to investigate the surface reactivity of polycrystalline <span class="hlt">Al</span> films in contact with a gas mixture of carbon dioxide and oxygen at room temperature. Based on the characterization of interactions between these substrates and the individual gases at selected exposures, various surface functionalities were identified. Simultaneously dosing both carbon dioxide and oxygen is shown to create surface-terminating carbonate species, which contribute to inhibiting the formation of an <span class="hlt">Al</span> 2O 3 layer. Finally, a reaction scheme is suggested to account for the observed dependence of surface group formation on the dosing conditions.</p> <div class="credits"> <p class="dwt_author">Tornow, C.; Noeske, P.-L. M.; Dieckhoff, S.; Wilken, R.; Gärtner, K.</p> <p class="dwt_publisher"></p> <p class="publishDate">2005-12-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">369</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2013JETPL..98...91B"> <span id="translatedtitle">Inhomogeneous elastic deformation of nanofilms and nanowires of Ni<span class="hlt">Al</span> and Fe<span class="hlt">Al</span> alloys</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">The molecular dynamics study of the uniaxial tension of nanofilms and nanowires of Ni<span class="hlt">Al</span> and Fe<span class="hlt">Al</span> intermetallide alloys has been performed. It has been shown that such samples are elastically deformed until failure at a strain of ? xx ? 0.35. There is an ? xx interval where the homogeneous deformation is thermodynamically unstable, leading to the formation of domains with different strains. The strain-stress dependence in the thermodynamically unstable region is almost linear, but has different slopes for a nanofilm and a nanowire because of the difference in the dynamics of domain walls.</p> <div class="credits"> <p class="dwt_author">Bukreeva, K. A.; Babicheva, R. I.; Dmitriev, S. V.; Zhou, K.; Mulyukov, R. R.</p> <p class="dwt_publisher"></p> <p class="publishDate">2013-09-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">370</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2015ChPhL..32a7301F"> <span id="translatedtitle">Characterization of Interface Charge in Nb<span class="hlt">AlO/Al</span>GaN/GaN MOSHEMT with Different Nb<span class="hlt">Al</span>O Thicknesses</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">We investigate the influence of interface charge on electrical performance of Nb<span class="hlt">AlO/Al</span>GaN/GaN metal-oxide-semiconductor high electron mobility transistors (MOSHEMTs). Through C—V measurements and simulations, we find that the donor-type interface fixed charge density Qit of 2.2 × 1013 cm?2 exists at the Nb<span class="hlt">AlO/Al</span>GaN interface, which induces the shift of the threshold voltage much more negative. Furthermore, a trap density of approximately 0.43 × 1013–1.14 × 1013 cm?2eV?1 is obtained at the Na<span class="hlt">AlO/Al</span>GaN interface, which is consistent with the frequency-dependent capacitance and conductance measurement results.</p> <div class="credits"> <p class="dwt_author">Feng, Qian; Du, Kai; Dai, Bo; Dong, Liang; Feng, Qing</p> <p class="dwt_publisher"></p> <p class="publishDate">2015-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">371</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/6402862"> <span id="translatedtitle"><span class="hlt">ALS</span> UPDATE: SIGNS OF PROGRESS, REASONS FOR HOPE</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Amyotrophic lateral sclerosis (<span class="hlt">ALS</span>) was first described 134 years ago. While still incurable, significant progress has been made in understanding the pathophysi- ology of the disease and its management. For example, it is now clear that <span class="hlt">ALS</span> is not a single disease; there are familial and sporadic subtypes. <span class="hlt">ALS</span> is not specific for motor neurons; other cell types are involved</p> <div class="credits"> <p class="dwt_author">Richard S. Bedlack; Swati Aggarwal</p> <p class="dwt_publisher"></p> <p class="publishDate">2009-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">372</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ece.ucsb.edu/uoeg/publications/papers/Jones_07_icoopma.pdf"> <span id="translatedtitle">Hybrid Silicon Integration R. Jones et <span class="hlt">al</span>. Hybrid Silicon Integration</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">Hybrid Silicon Integration R. Jones et <span class="hlt">al</span>. 1 / 23 Hybrid Silicon Integration R. Jones1 , H. D. Park.jones@intel.com #12;Hybrid Silicon Integration R. Jones et <span class="hlt">al</span>. 2 / 23 Hybrid Silicon Integration R. Jones1 , H. D.jones@intel.com Abstract: An overview is presented of the hybrid <span class="hlt">Al</span>GaInAs-silicon platform that enables wafer level</p> <div class="credits"> <p class="dwt_author">Bowers, John</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">373</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://eric.ed.gov/?q=als&id=EJ1004284"> <span id="translatedtitle">The Practical Enactment of Adventure Learning: Where Will You <span class="hlt">AL</span>@?</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.eric.ed.gov/ERICWebPortal/search/extended.jsp?_pageLabel=advanced">ERIC Educational Resources Information Center</a></p> <p class="result-summary">The Adventure Learning (<span class="hlt">AL</span>) approach to designing and implementing learning experiences has great potential for practitioners. This manuscript delineates the practical enactment of <span class="hlt">AL</span> to support the K-12 community, teacher educators, and residential environmental science program providers in the conceptualization and delivery of their own <span class="hlt">AL</span>…</p> <div class="credits"> <p class="dwt_author">Miller, Brant G.; Hougham, R. Justin; Eitel, Karla Bradley</p> <p class="dwt_publisher"></p> <p class="publishDate">2013-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">374</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.philadelphia.edu.jo/adminFina/Businessadmin/cvs/mutawi.pdf"> <span id="translatedtitle">Department of Business Administration Samir Aziz Alaiwy <span class="hlt">Al</span>-Abbadi</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">Department of Business Administration Samir Aziz Alaiwy <span class="hlt">Al</span>-Abbadi P.O. Box:1 Philadelphia. Samir Aziz Alaiwy <span class="hlt">Al</span>-Abbadi Date of Birth : 1949 Academic Qualification · B.Sc Business Administration - 1975 ­ <span class="hlt">Al</span>- Mustansiryah University ­ Iraq · M.B.A Business Administration (Production / Operations</p> <div class="credits"> <p class="dwt_author"></p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">375</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://jordan.biology.gatech.edu/page/pubs/jordan-pnas-2008-supplement.pdf"> <span id="translatedtitle">Supporting Information Jordan et <span class="hlt">al</span>. 10.1073/pnas.0806306105</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">Supporting Information Jordan et <span class="hlt">al</span>. 10.1073/pnas.0806306105 SI Text Functional Analysis with pClamp 8.2. For display, single channel records were filtered digitally to 70 Hz. Jordan et <span class="hlt">al</span>. www, green; ABC2, cyan; R-domain, pink. Jordan et <span class="hlt">al</span>. www.pnas.org/cgi/content/short/0806306105 2 of 14 #12</p> <div class="credits"> <p class="dwt_author">Jordan, King</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">376</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/41027183"> <span id="translatedtitle">Reaction mechanism of combustion synthesis of Ni<span class="hlt">Al</span></span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Based on precise temperature measurements during combustion and microstructural analysis of quenched samples, the evolution of reaction of the Ni<span class="hlt">Al</span> combustion synthesis has been studied. The combustion reaction of a multilayer Ni\\/<span class="hlt">Al</span> system takes place in a thermal explosion mode under near adiabatic conditions. The experimental results clearly show that the combustion reaction starts right after the melting of <span class="hlt">Al</span>.</p> <div class="credits"> <p class="dwt_author">Ping Zhu; J. C. M Li; C. T Liu</p> <p class="dwt_publisher"></p> <p class="publishDate">2002-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">377</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/59737192"> <span id="translatedtitle"><span class="hlt">Al</span> Qaida wil meer dan Blair straffen voor Irak</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Het was te verwachten. Ook in ons land beschouwen vele commentatoren de aanslagen in Londen <span class="hlt">als</span> een straf voor de medeplichtigheid van Blair aan de huidige ellende in Irak. Dit is een te eenvoudige voorstelling van zaken.\\u000a <span class="hlt">Als</span> de inval in Irak de enige reden zou zijn waarom <span class="hlt">Al</span> Qaida aanslagen pleegt waarom heeft deze organisatie voor de aanval in</p> <div class="credits"> <p class="dwt_author">A. J. Boekestijn</p> <p class="dwt_publisher"></p> <p class="publishDate">2005-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">378</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://redalyc.uaemex.mx/redalyc/pdf/284/28442111.pdf"> <span id="translatedtitle">O Conceito de Resiliência <span class="hlt">Aplicado</span> ao Trabalho nas Organizações</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Resilience is a concept that has been used to explain psychosocial phenomena referred to individuals, groups or organizations that surpass or transcend adverse situations. In this study, the use of the concept of resilience as a theoretical referential in the field of Psychology of Work is discussed through: a) content analysis of two recent films - Frida and Life is</p> <div class="credits"> <p class="dwt_author">Lisete Barlach; Ana Cristina Limongi-França; Sigmar Malvezzi</p> <p class="dwt_publisher"></p> <p class="publishDate">2008-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">379</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://200.17.137.108/tde_busca/arquivo.php?codArquivo=72"> <span id="translatedtitle">Métodos emergentes de física-estatística <span class="hlt">aplicados</span> a séries temporais.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">??O principal objetivo do presente trabalho foi aplicar métodos recentemente desenvolvidos em física-estatística às séries temporais, em especial neste trabalho, a intervalos de batimentos cardíacos… (more)</p> <div class="credits"> <p class="dwt_author">Carlos André Batista</p> <p class="dwt_publisher"></p> <p class="publishDate">2006-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">380</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.gpo.gov:80/fdsys/pkg/FR-2012-03-01/pdf/2012-4862.pdf"> <span id="translatedtitle">77 FR 12617 - United States et <span class="hlt">al</span>. v. Blue Cross and Blue Shield of Montana, Inc., et <span class="hlt">al</span>.; Public Comments and...</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.gpo.gov/fdsys/browse/collection.action?collectionCode=FR">Federal Register 2010, 2011, 2012, 2013</a></p> <p class="result-summary">...JUSTICE Antitrust Division United States et <span class="hlt">al</span>. v. Blue Cross and Blue Shield of Montana, Inc., et <span class="hlt">al</span>.; Public Comments...proposed Final Judgment in United States et <span class="hlt">al</span>. v. Blue Cross and Blue Shield of Montana, Inc. et <span class="hlt">al</span>.,...</p> <div class="credits"> <p class="dwt_author"></p> <p class="dwt_publisher"></p> <p class="publishDate">2012-03-01</p> </div> </div> </div> </div> <div id="filter_results_form" class="filter_results_form floatContainer" style="visibility: visible;"> <div style="width:100%" id="PaginatedNavigation" class="paginatedNavigationElement"> <a id="FirstPageLink" onclick='return showDiv("page_1");' href="#" title="First Page"> <img id="FirstPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.first.18x20.png" alt="First Page" /></a> <a id="PreviousPageLink" onclick='return showDiv("page_18");' href="#" title="Previous Page"> <img id="PreviousPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.previous.18x20.png" alt="Previous Page" /></a> <span id="PageLinks" class="pageLinks"> <span> <a onClick='return showDiv("page_1");' href="#">1</a> <a onClick='return 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title="Next Page"> <img id="NextPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.next.18x20.png" alt="Next Page" /></a> <a id="LastPageLink" onclick='return showDiv("page_25.0");' href="#" title="Last Page"> <img id="LastPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.last.18x20.png" alt="Last Page" /></a> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">381</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2014Nanos...610784L"> <span id="translatedtitle"><span class="hlt">Al</span>2C monolayer: the planar tetracoordinate carbon global minimum</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">Inspired by our theoretical finding that C2<span class="hlt">Al</span>62- has a planar D2h minimum with two planar tetracoordinate carbons (ptCs), we computationally designed a new two-dimensional (2D) inorganic material, an <span class="hlt">Al</span>2C monolayer. All carbons in this monolayer are ptC's, stabilized inductively by binding to four electropositive <span class="hlt">Al</span> atoms in the same plane. The <span class="hlt">Al</span>2C monolayer is semiconducting with an indirect minimum band gap and a slightly larger direct band gap. Good persistence of the <span class="hlt">Al</span>2C monolayer is indicated by its moderate cohesive energy, the absence of imaginary modes in its phonon spectrum, and the high melting point predicted by molecular dynamics (MD) simulations. Moreover, a particle-swarm optimization (PSO) global minimum search found the <span class="hlt">Al</span>2C monolayer to be the lowest-energy 2D structure compared to other <span class="hlt">Al</span>2C alternatives. Dividing the <span class="hlt">Al</span>2C monolayer results in one-dimensional (1D) <span class="hlt">Al</span>2C nanoribbons, which are computed to have quite rich characteristics such as direct or indirect band gaps with various values, depending on the direction of the division and the resulting edge configuration.Inspired by our theoretical finding that C2<span class="hlt">Al</span>62- has a planar D2h minimum with two planar tetracoordinate carbons (ptCs), we computationally designed a new two-dimensional (2D) inorganic material, an <span class="hlt">Al</span>2C monolayer. All carbons in this monolayer are ptC's, stabilized inductively by binding to four electropositive <span class="hlt">Al</span> atoms in the same plane. The <span class="hlt">Al</span>2C monolayer is semiconducting with an indirect minimum band gap and a slightly larger direct band gap. Good persistence of the <span class="hlt">Al</span>2C monolayer is indicated by its moderate cohesive energy, the absence of imaginary modes in its phonon spectrum, and the high melting point predicted by molecular dynamics (MD) simulations. Moreover, a particle-swarm optimization (PSO) global minimum search found the <span class="hlt">Al</span>2C monolayer to be the lowest-energy 2D structure compared to other <span class="hlt">Al</span>2C alternatives. Dividing the <span class="hlt">Al</span>2C monolayer results in one-dimensional (1D) <span class="hlt">Al</span>2C nanoribbons, which are computed to have quite rich characteristics such as direct or indirect band gaps with various values, depending on the direction of the division and the resulting edge configuration. Electronic supplementary information (ESI) available: Complete citation of ref. 50, the band structure of an <span class="hlt">Al</span>2C monolayer computed using the HSE06 functional, snapshots of MD simulations, and bulk structures of <span class="hlt">Al</span>2C-II and <span class="hlt">Al</span>2C-III. See DOI: 10.1039/c4nr01972e</p> <div class="credits"> <p class="dwt_author">Li, Yafei; Liao, Yunlong; Schleyer, Paul Von Ragué; Chen, Zhongfang</p> <p class="dwt_publisher"></p> <p class="publishDate">2014-08-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">382</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2011ChPhL..28e7102W"> <span id="translatedtitle">Improved <span class="hlt">Al</span>GaN/GaN HEMTs Grown on Si Substrates Using Stacked <span class="hlt">AlGaN/Al</span>N Interlayer by MOCVD</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary"><span class="hlt">Al</span>GaN/GaN high electron mobility transistors (HEMTs) are grown on 2-inch Si (111) substrates by MOCVD. The stacked <span class="hlt">AlGaN/Al</span>N interlayer with different <span class="hlt">Al</span>GaN thickness and indium surfactant doped is designed and optimized to relieve the tensile stress during GaN epitaxial growth. The top 1.0?m GaN buffer layer grown on the optimized <span class="hlt">AlGaN/Al</span>N interlayer shows a crack-free and shining surface. The XRD results show that GaN(002) FWHM is 480 arcsec and GaN(102) FWHM is 900 arcsec. The AGaN/GaN HEMTs with optimized and non-optimized <span class="hlt">AlGaN/Al</span>N interlayer are grown and processed for comparison and the dc and rf characteristics are characterized. For the dc characteristics of the device with optimized <span class="hlt">AlGaN/Al</span>N interlayer, maximum drain current density Idss of 737mA/mm, peak transconductance Gm of 185mS/mm, drain leakage current density Ids of 1.7?A/mm, gate leakage current density Igs of 24.8 ?A/mm and off-state breakdown voltage VBR of 67 V are achieved with Lg/Wg/Lgs/Lgd = 1/10/1/1 ?m. For the small signal rf characteristics of the device with optimized <span class="hlt">AlGaN/Al</span>N interlayer, current gain cutoff frequency fT of 8.3 GHz and power gain cutoff frequency fmax of 19.9 GHz are achieved with Lg/Wg/Lgs/Lgd = 1/100/1/1 ?m. Furthermore, the best rf performance with fT of 14.5 GHz and fmax of 37.3 GHz is achieved with a reduced gate length of 0.7?m.</p> <div class="credits"> <p class="dwt_author">Wang, Yong; Yu, Nai-Sen; Li, Ming; Lau, Kei-May</p> <p class="dwt_publisher"></p> <p class="publishDate">2011-05-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">383</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/biblio/21518326"> <span id="translatedtitle">Ab initio molecular dynamics of <span class="hlt">Al</span> irradiation-induced processes during <span class="hlt">Al</span>{sub 2}O{sub 3} growth</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary"><span class="hlt">Al</span> bombardment induced structural changes in {alpha}-<span class="hlt">Al</span>{sub 2}O{sub 3} (R-3c) and {gamma}-<span class="hlt">Al</span>{sub 2}O{sub 3} (Fd-3m) were studied using ab initio molecular dynamics. Diffusion and irradiation damage occur for both polymorphs in the kinetic energy range from 3.5 to 40 eV. However, for {gamma}-<span class="hlt">Al</span>{sub 2}O{sub 3}(001) subplantation of impinging <span class="hlt">Al</span> causes significantly larger irradiation damage and hence larger mobility as compared to {alpha}-<span class="hlt">Al</span>{sub 2}O{sub 3}. Consequently, fast diffusion along {gamma}-<span class="hlt">Al</span>{sub 2}O{sub 3}(001) gives rise to preferential {alpha}-<span class="hlt">Al</span>{sub 2}O{sub 3}(0001) growth, which is consistent with published structure evolution experiments.</p> <div class="credits"> <p class="dwt_author">Music, Denis; Nahif, Farwah; Friederichsen, Niklas; Schneider, Jochen M. [Materials Chemistry, RWTH Aachen University, D-52056 Aachen (Germany); Sarakinos, Kostas [Plasma and Coatings Physics Division, Linkoeping University, SE-58183 Linkoeping (Sweden)</p> <p class="dwt_publisher"></p> <p class="publishDate">2011-03-14</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">384</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2012PhyB..407.4530O"> <span id="translatedtitle">Thermodynamic and physical properties of Fe<span class="hlt">Al</span> and Fe3<span class="hlt">Al</span>: an atomistic study by EAM simulation</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">With this work we present a newly developed potential for the Fe-<span class="hlt">Al</span> system, which is based on the analytical embedded atom method (EAM) with long range atomic interactions. The potential yields for the two most relevant phases B2-Fe<span class="hlt">Al</span> and D03-Fe3<span class="hlt">Al</span> lattice constants, elastic constants, as well as bulk and point defect formation enthalpies, which are in good agreement with experimental and other theoretical data. In addition, the phonon dispersions for B2-Fe<span class="hlt">Al</span> and D03-Fe3<span class="hlt">Al</span> show a good agreement with available experiments. The calculated lattice constants and formation enthalpy for disordered Fe-<span class="hlt">Al</span> alloys are in good agreement with experimental data or other theoretical calculations. This indicates that the present EAM potentials of Fe-<span class="hlt">Al</span> system is suitable for atomistic simulations of structural and kinetic properties for the Fe-<span class="hlt">Al</span> system.</p> <div class="credits"> <p class="dwt_author">Ouyang, Yifang; Tong, Xiaofeng; Li, Chang; Chen, Hongmei; Tao, Xiaoma; Hickel, Tilmann; Du, Yong</p> <p class="dwt_publisher"></p> <p class="publishDate">2012-12-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">385</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=19790027929&hterms=Ni3Al&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D40%26Ntt%3DNi3Al"> <span id="translatedtitle">Interdiffusion and intrinsic diffusion in the Ni<span class="hlt">Al</span> /delta/ phase of the <span class="hlt">Al</span>-Ni system</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p class="result-summary">Interdiffusion coefficients at 950 to 1150 C and the ratio of intrinsic diffusion coefficients at 1100 C were measured as functions of composition in the Ni<span class="hlt">Al</span> (delta) phase of the <span class="hlt">Al</span>-Ni system, using a vapor-solid technique. Diffusivity values were also obtained for the Ni3<span class="hlt">Al</span> (epsilon) and Ni (<span class="hlt">Al</span>) solid solution (zeta) phases from 950 to 1150 C. The interdiffusion coefficient in Ni<span class="hlt">Al</span> (delta) varies several orders of magnitude over the delta phase field with a deep minimum in the diffusivity-composition curve at 48 to 49 at% <span class="hlt">Al</span>. The ratio of intrinsic diffusion coefficients DNi/DAl, in the delta phase also varies with composition from a value of 3 to 3.5 below 50 at% <span class="hlt">Al</span> to 0.1 or less above 50 at% <span class="hlt">Al</span>.</p> <div class="credits"> <p class="dwt_author">Shankar, S.; Seigle, L. L.</p> <p class="dwt_publisher"></p> <p class="publishDate">1978-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">386</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/19916405"> <span id="translatedtitle">Properties of Ni<span class="hlt">Al</span> and Ni-<span class="hlt">Al</span>-N thin films deposited by closed field unbalanced magnetron sputter ion plating using elemental Ni and <span class="hlt">Al</span> targets.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">Approximately 1 microm thick Ni<span class="hlt">Al</span> and Ni-<span class="hlt">Al</span>-N thin films have been deposited from individual elemental Ni (99.5% pure) and <span class="hlt">Al</span> (99.5% pure) targets onto glass and stainless steel 316 substrates using closed field unbalanced magnetron sputter ion platting (CFUBMSIP) process. The films have been characterized using stylus profilometry, energy dispersive spectroscopy (EDAX), X-ray diffractometry (XRD) and atomic force microscopy (AFM). The X-ray diffraction patterns of both types of thin films produced confirmed the formation of beta-Ni<span class="hlt">Al</span> phase. The EDAX results revealed that all of the Ni<span class="hlt">Al</span> thin films produced exhibited the near equiatomic Ni<span class="hlt">Al</span> phase with the best results given by the one deposited using 300 Watts DC power for Ni and 400 Watts DC power for <span class="hlt">Al</span> targets respectively. However, the Ni-<span class="hlt">Al</span>-N thin films showed a Ni-rich Ni<span class="hlt">Al</span> phase. AFM results of both types of films produced carried out on glass samples exhibited that the coatings have quite a smooth surface with surface roughness in nanometres range. PMID:19916405</p> <div class="credits"> <p class="dwt_author">Baig, M N; Ahmed, W; Khalid, F A; Said, R M; McLaughlin, J</p> <p class="dwt_publisher"></p> <p class="publishDate">2009-07-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">387</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://enpub.fulton.asu.edu/cms/papers/al-alumina.pdf"> <span id="translatedtitle">Adhesion, Atomic Structure, and Bonding at the <span class="hlt">Al</span>2O3(0001)/<span class="hlt">Al</span>(111) Interface: A First Principles Study</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">Adhesion, Atomic Structure, and Bonding at the «­<span class="hlt">Al</span>2O3(0001)/<span class="hlt">Al</span>(111) Interface: A First Principles ), and bond character of the «­<span class="hlt">Al</span>2O3(0001)/<span class="hlt">Al</span>(111) interface. A total of six candidate interface structures, and have determined that a major contribution to bonding across the interface is simi- lar to what is found</p> <div class="credits"> <p class="dwt_author">Adams, James B</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">388</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://hal.inria.fr/docs/01/05/42/16/PDF/ECS_author.pdf"> <span id="translatedtitle"><span class="hlt">Al</span>GaN/GaN MIS-HEMT Gate Structure Improvement Using <span class="hlt">Al</span>2O3 Deposited by PEALD</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary"><span class="hlt">Al</span>GaN/GaN MIS-HEMT Gate Structure Improvement Using <span class="hlt">Al</span>2O3 Deposited by PEALD R. Meunier1 , A in the world of microelectronics, <span class="hlt">Al</span>2O3 is mostly used for its deposition simplicity and has already lead realized before a 10nm <span class="hlt">Al</span>2O3 deposition, and a Cr/Au gate was used. The C(V) measurement were carried out</p> <div class="credits"> <p class="dwt_author">Boyer, Edmond</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">389</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://lyle.smu.edu/~wtong/papers/Xie&Tong2005ActaMatv53p477_OxideCoatingFracture.pdf"> <span id="translatedtitle">Cracking and decohesion of a thin <span class="hlt">Al</span>2O3 film on a ductile <span class="hlt">Al</span>5%Mg substrate</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">Cracking and decohesion of a thin <span class="hlt">Al</span>2O3 film on a ductile <span class="hlt">Al</span>­5%Mg substrate Changjin Xie, Wei Tong Abstract A ductile metal substrate (1 mm thick <span class="hlt">Al</span>­5%Mg) with a brittle thin film coating (0.1 lm thick <span class="hlt">Al</span>2O3) was quasi-statically stretched to induce an array of parallel cracks in the coating. Additional</p> <div class="credits"> <p class="dwt_author">Tong, Wei</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">390</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2014JMEP...23.2877S"> <span id="translatedtitle">Metallurgical Characteristics of Ti<span class="hlt">AlN/Al</span>CrN Coating Synthesized by the PVD Process on a Cutting Insert</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">Ti<span class="hlt">AlN/Al</span>CrN coating was deposited on a tungsten carbide insert, using the plasma-enhanced physical vapor deposition (PEPVD) process. The microstructure of the coating was examined and it was found that the Ti<span class="hlt">AlN/Al</span>CrN coating was uniform, highly dense, and less porous. The different phases formed in the coating were analyzed using the x-ray diffraction. The hardness and scratch resistance were measured using the nanoindentation tester and scratch tester, respectively. Ti<span class="hlt">AlN/Al</span>CrN exhibited higher hardness, higher Young's modulus, and superior scratch resistance when compared to the conventional coatings, such as Ti<span class="hlt">Al</span>N, <span class="hlt">Al</span>CrN, and TiN. The surface morphology of the coating was characterized using the atomic force microscope (AFM). The surface roughness was found to be lesser in the Ti<span class="hlt">AlN/Al</span>CrN coating. The Ti<span class="hlt">AlN/Al</span>CrN coating has proved to have better corrosion resistance, compared to the uncoated carbide substrate.</p> <div class="credits"> <p class="dwt_author">Sampath Kumar, T.; Balasivanandha Prabu, S.; Manivasagam, Geetha</p> <p class="dwt_publisher"></p> <p class="publishDate">2014-08-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">391</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://meyersgroup.ucsd.edu/papers/journals/Meyers%20246.pdf"> <span id="translatedtitle">(5.5) BRAZING OF METALLIC-INTERMETALLIC LAMINATE (MIL) Ti-6<span class="hlt">Al</span>-4V/<span class="hlt">Al</span>3Ti COMPOSITES</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">, appropriate joining techniques must be developed. Welding, diffusion-bonding and brazing are all viable) reported that electron beam welding of Ti<span class="hlt">Al</span> is possible, but that welding cracks cannot be avoided. Baeslack et <span class="hlt">al</span>. (Ref. 4) and Mallory et <span class="hlt">al</span>. (Ref. 5) carried out studies in welding of different titanium</p> <div class="credits"> <p class="dwt_author">Meyers, Marc A.</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">392</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://eprint.iacr.org/2011/331.pdf"> <span id="translatedtitle">Cryptanalysis of Cho et <span class="hlt">al.'s</span> Protocol, A Hash-Based Mutual Authentication Protocol for RFID Systems</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">Cryptanalysis of Cho et <span class="hlt">al.'s</span> Protocol, A Hash-Based Mutual Authentication Protocol for RFID cryptanalysis a hash based RFID mutual authentication protocol which has been recently proposed by Cho et <span class="hlt">al</span> impersonation attack: the success probability of attack is "1 4 " for two runs of protocol. Keywords: RFID</p> <div class="credits"> <p class="dwt_author"></p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">393</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2015ApSS..326..174Z"> <span id="translatedtitle">Catalytic effect of <span class="hlt">Al</span> and <span class="hlt">Al</span>N interlayer on the growth and properties of containing carbon films</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">Diamond-like carbon (DLC) and carbon nitride (CNx) bilayer films with <span class="hlt">Al</span> and <span class="hlt">Al</span>N interlayer were fabricated by pulse cathode arc technique. The structure, composition, morphology and mechanical properties of the films were investigated by Raman, Auger electron spectroscopy (AES) and X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), Knoop sclerometer and surface profilometer. The results indicated that the complete diffusion between C and <span class="hlt">Al</span> atoms occurs in the <span class="hlt">Al</span>/DLC and <span class="hlt">Al</span>/CNx bilayer. <span class="hlt">Al</span> interlayer induces the increase of the size and ordering of Csp2 clusters in the films but <span class="hlt">Al</span>N interlayer increases the disordering degree of Csp2 clusters. XPS results showed that a higher content of Csp3/Csp2 bonds presents in the <span class="hlt">Al</span>/CNx bilayer, and <span class="hlt">Al</span> and <span class="hlt">Al</span>N interlayer decreases the atomic ratio of N/C. AFM with phase contrast mode illustrated the morphologic characteristics of the bilayer films. All the bilayers show a nano-structural surface. The morphology changes of the bilayer were well explained by the surface state of the substrate and the growth mechanism of DLC films. The hardness of <span class="hlt">Al</span>/DLC bilayer decreases but it increases for the other bilayers compared to the corresponding DLC (CNx) monolayer. The internal stress of the bilayer is significantly lower than that of the monolayer except for the <span class="hlt">Al</span>N/CNx bilayer. These studies could make the difference at the time of choosing a suitable functional film for certain application.</p> <div class="credits"> <p class="dwt_author">Zhou, Bing; Liu, Zhubo; Tang, Bin; Rogachev, A. V.</p> <p class="dwt_publisher"></p> <p class="publishDate">2015-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">394</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2007JaJAP..46.5611S"> <span id="translatedtitle">Local Tunneling Barrier Height Observations on Ni3<span class="hlt">Al</span>(111)</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">Local tunneling barrier height (LBH) distribution, regarded as the local work function distribution, of Ni3<span class="hlt">Al</span>(111) is observed and compared with that of Ni<span class="hlt">Al</span>(110). Although element-specific and atomically abrupt LBH distribution has been observed on Ni<span class="hlt">Al</span>(110), such a definite distribution is not observed on Ni3<span class="hlt">Al</span>(111). This indicates that the abrupt LBH distribution is not due to the elemental combination of Ni and <span class="hlt">Al</span> but due to the electronic structure of the surface.</p> <div class="credits"> <p class="dwt_author">Sasaki, Masahiro; Saida, Morihiko; Ogata, Satoshi</p> <p class="dwt_publisher"></p> <p class="publishDate">2007-08-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">395</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=19920029400&hterms=neutron+scattering&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D10%26Ntt%3D%2522neutron%2Bscattering%2522"> <span id="translatedtitle">A novel hydride phase in hydrogen charged Ti3<span class="hlt">Al</span></span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p class="result-summary">The effect of internal hydrogen on the microstructural modification of Ti3<span class="hlt">Al</span> (alpha-2) compound was studied by large-angle neutron scattering and TEM. Ti-25 at. pct <span class="hlt">Al</span> (Ti3<span class="hlt">Al</span>) specimens were exposed to gaseous hydrogen atmosphere at 600 C that resulted in internal hydrogen concentration of 2000 ppm. The hydrogen-charged alloy consisted of a mixture of alpha-2 phase and a novel Ti3<span class="hlt">Al</span>H phase with the E2(1), (Pm3m) crystal structure. The lattice parameters and atomic arrangement of the Ti3<span class="hlt">Al</span>H phase were determined.</p> <div class="credits"> <p class="dwt_author">Schwartz, D. S.; Lederich, R. J.; Sastry, S. M. L.; Yelon, W. B.; Berliner, R. R.</p> <p class="dwt_publisher"></p> <p class="publishDate">1991-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">396</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://euro.ecom.cmu.edu/people/faculty/mshamos/8112776.pdf"> <span id="translatedtitle">c12) United States Patent Schein et <span class="hlt">al</span>.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">.S. PATENT DOCUMENTS 5,563,665 A 10/1996 Chang 5,570,295 A 10/1996 Isenberg et <span class="hlt">al</span>. 4,271,532 A 6/1981 Wine 5,572,442 A 1111996 Schulhof et <span class="hlt">al</span>. 4,280,148 A 7/1981 Saxena 5,576,755 A 1111996 Davis et <span class="hlt">al</span>. 4,367,559 A 111983!. 4,381,522 A 4/1983 Lambert 5,585,865 A 12/1996 Amano et <span class="hlt">al</span>. 4,390,901 A 6/1983 Keiser et <span class="hlt">al</span>. 5</p> <div class="credits"> <p class="dwt_author">Shamos, Michael I.</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">397</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2006AIPC..847..298C"> <span id="translatedtitle">Probing Galactic 26<span class="hlt">Al</span> with Exotic Ion Beams</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">The goal of understanding the production of galactic 26<span class="hlt">Al</span> brings together progress in nuclear astrophysics from observations, theory, meteoritics, and laboratory experiments. In the case of experimental work, nuclear reactions involving unstable isotopes are being studied to elucidate the production of 26<span class="hlt">Al</span> in stellar explosive nucleosynthesis. We discuss a direct measurement of the 26<span class="hlt">Al</span>(p,?)27Si reaction with the DRAGON collaboration at TRIUMF, and a measurement of 25<span class="hlt">Al</span>+p elastic scattering with the CRIB (CNS-U.Tokyo) collaboration, toward constraining the 25<span class="hlt">Al</span>(p,?)26Si reaction.</p> <div class="credits"> <p class="dwt_author">Chen, Alan A.</p> <p class="dwt_publisher"></p> <p class="publishDate">2006-07-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">398</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/1993JAP....74.6165J"> <span id="translatedtitle">Interfacial reactions on annealing Cu/<span class="hlt">Al</span> multilayer thin films</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">Thin film reactions of Cu/<span class="hlt">Al</span> multilayer films were investigated by differential scanning calorimetry and transmission electron microscopy. Sequential intermetallic compound formation was found in the temperature range from 300 to 620 K. With excess copper present in the as-deposited trilayer and multilayer films, the observed sequence was Cu<span class="hlt">Al</span>2 and Cu9<span class="hlt">Al</span>4, and the interfacial reactions were controlled by interfacial and grain boundary diffusion. The activation energies for the formation of Cu<span class="hlt">Al</span>2 and Cu9<span class="hlt">Al</span>4 are 0.78±0.11 and 0.83±0.2 eV, respectively.</p> <div class="credits"> <p class="dwt_author">Jiang, H. G.; Dai, J. Y.; Tong, H. Y.; Ding, B. Z.; Song, Q. H.; Hu, Z. Q.</p> <p class="dwt_publisher"></p> <p class="publishDate">1993-11-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">399</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/biblio/1023304"> <span id="translatedtitle">Creep in Directionally Solidified Ni<span class="hlt">Al</span>-Mo Eutectics</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">A directionally solidified Ni<span class="hlt">Al</span>-Mo eutectic and an Ni<span class="hlt">Al</span> intermetallic, having respective nominal compositions Ni-45.5<span class="hlt">Al</span>-9Mo and Ni-45.2<span class="hlt">Al</span> (at.%), were loaded in compression at 1073 and 1173 K. Formidable strengthening by regularly distributed Mo fibres (average diameter 600 nm, volume fraction 14%) was observed. The fibres can support compression stresses transferred from the plastically deforming matrix up to a critical stress of the order of 2.5 GPa, at which point they yield. Microstructural evidence is provided for the dislocation-mediated stress transfer from the Ni<span class="hlt">Al</span> to the Mo phase.</p> <div class="credits"> <p class="dwt_author">Dudova, Marie [Institute of Physics, Czech Republic; Kucharova, Kveta [Institute of Physics, Czech Republic; Bartak, Tomas [Institute of Physics, Czech Republic; Bei, Hongbin [ORNL; George, Easo P [ORNL; Somsen, Ch. [Ruhr University, Bochum, Germany; Dlouhy, A. [Institute of Physics of Materials, Brno, Czech Republic</p> <p class="dwt_publisher"></p> <p class="publishDate">2011-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">400</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2014JEMat.tmp..471K"> <span id="translatedtitle">Structural, Optical, and Electrical Characterization of <span class="hlt">Al/n-ZnO/p-Si/Al</span> Heterostructures</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">For heterojunction fabrication, zinc oxide thin films were grown on p-Si by pulsed laser deposition. X-ray diffraction patterns were used to study the grain size and morphology of the films. The optical properties of the films were studied by UV-visible and photoluminescence spectroscopy. Experimental observations confirmed that the deposited films have potential for sharp emission in the visible region. High-purity (99.999%) vacuum evaporated aluminium metal was used to make contacts to the n-ZnO and p-Si. The current-voltage characteristics of the <span class="hlt">Al</span>/n-ZnO/p-Si(100)/<span class="hlt">Al</span> heterostructure measured over the temperature range 60-300 K were studied on the basis of the thermionic emission diffusion mechanism. The equivalent Schottky barrier height and the diode ideality factor were determined by fitting measured current-voltage data to the thermionic emission diffusion equation. It was observed that the barrier height decreased and the ideality factor increased with decreasing temperature, and that the activation energy plot was non-linear at low temperature. These characteristics are attributed to the Gaussian distribution of barrier heights. The capacitance-voltage characteristics of the <span class="hlt">Al</span>/n-ZnO/p-Si(100)/<span class="hlt">Al</span> heterostructure diode were studied over a wide temperature range. The impurity concentration in deposited n-type ZnO films was estimated from measured capacitance-voltage data.</p> <div class="credits"> <p class="dwt_author">Kumar, Rajender; Chand, Subhash</p> <p class="dwt_publisher"></p> <p class="publishDate">2014-11-01</p> </div> </div> </div> </div> <div id="filter_results_form" class="filter_results_form floatContainer" style="visibility: visible;"> <div style="width:100%" id="PaginatedNavigation" class="paginatedNavigationElement"> <a id="FirstPageLink" onclick='return showDiv("page_1");' href="#" title="First Page"> <img id="FirstPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.first.18x20.png" alt="First Page" /></a> <a id="PreviousPageLink" onclick='return showDiv("page_19");' href="#" title="Previous Page"> <img id="PreviousPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.previous.18x20.png" alt="Previous Page" /></a> <span id="PageLinks" class="pageLinks"> <span> <a onClick='return 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showDiv("page_22");' href="#" title="Next Page"> <img id="NextPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.next.18x20.png" alt="Next Page" /></a> <a id="LastPageLink" onclick='return showDiv("page_25.0");' href="#" title="Last Page"> <img id="LastPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.last.18x20.png" alt="Last Page" /></a> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">401</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/20442029"> <span id="translatedtitle">Guided lamb wave electroacoustic devices on micromachined <span class="hlt">AlN/Al</span> plates.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">An electroacoustic micro-device based on the propagation of guided acoustic Lamb waves in <span class="hlt">AlN/Al</span> plate is described. The <span class="hlt">Al</span>N thin film is deposited by sputtering technique, optimized to achieve a high degree of orientation (rocking curve full-width at half-maximum /sp lap/ 3.5 degrees ) of the c-axis perpendicular to the plate surface. The <span class="hlt">Al</span>N plate is micromachined using anisotropic reactive ion etching (RIE), followed by isotropic RIE to remove the silicon underlayer. Simulation results for the dispersion phase velocity curves and the electromechanical coupling coefficient (K(2)) are obtained by the matrix method and by the finite element method and compared with experimental data. A delay line is implemented on the structure and tested for the propagation of the first symmetrical Lamb mode (s(0)) at the frequency of 1.22 GHz. Measurements have shown that the structure is suitable for implementation of arrays of electroacoustic devices on a single chip for application to both sensing devices and signal processing systems. PMID:20442029</p> <div class="credits"> <p class="dwt_author">Di Pietrantonio, Fabio; Benetti, Massimiliano; Cannatà, Domenico; Beccherelli, Romeo; Verona, Enrico</p> <p class="dwt_publisher"></p> <p class="publishDate">2010-05-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">402</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=19990021236&hterms=computerized+analysis+Li&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D10%26Ntt%3Dcomputerized%2Banalysis%2BLi"> <span id="translatedtitle">High Temperature Mechanical Characterization and Analysis of <span class="hlt">Al</span>2O3 /<span class="hlt">Al</span>2O3 Composition</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p class="result-summary">Sixteen ply unidirectional zirconia coated single crystal <span class="hlt">Al</span>2O3 fiber reinforced polycrystalline <span class="hlt">Al</span>2O3 was tested in uniaxial tension at temperatures to 1400 C in air. Fiber volume fractions ranged from 26 to 31%. The matrix has primarily open porosity of approximately 40%. Theories for predicting the Young's modulus, first matrix cracking stress, and ultimate strength were applied and evaluated for suitability in predicting the mechanical behavior of <span class="hlt">Al</span>2O3/<span class="hlt">Al</span>2O3 composites. The composite exhibited pseudo tough behavior (increased area under the stress/strain curve relative to monolithic alumina) from 22 to 1400 C. The rule-of-mixtures provides a good estimate of the Young's modulus of the composite using the constituent properties from room temperature to approximately 1200 C for short term static tensile tests in air. The ACK theory provides the best approximation of the first matrix cracking stress while accounting for residual stresses at room temperature. Difficulties in determining the fiber/matrix interfacial shear stress at high temperatures prevented the accurate prediction of the first matrix cracking stress above room temperature. The theory of Cao and Thouless, based on Weibull statistics, gave the best prediction for the composite ultimate tensile strength.</p> <div class="credits"> <p class="dwt_author">Gyekenyesi, John Z.; Jaskowiak, Martha H.</p> <p class="dwt_publisher"></p> <p class="publishDate">1999-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">403</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2015JEMat..44..194K"> <span id="translatedtitle">Structural, Optical, and Electrical Characterization of <span class="hlt">Al</span>/ n-ZnO/ p-Si/<span class="hlt">Al</span> Heterostructures</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">For heterojunction fabrication, zinc oxide thin films were grown on p-Si by pulsed laser deposition. X-ray diffraction patterns were used to study the grain size and morphology of the films. The optical properties of the films were studied by UV-visible and photoluminescence spectroscopy. Experimental observations confirmed that the deposited films have potential for sharp emission in the visible region. High-purity (99.999%) vacuum evaporated aluminium metal was used to make contacts to the n-ZnO and p-Si. The current-voltage characteristics of the <span class="hlt">Al</span>/ n-ZnO/ p-Si(100)/<span class="hlt">Al</span> heterostructure measured over the temperature range 60-300 K were studied on the basis of the thermionic emission diffusion mechanism. The equivalent Schottky barrier height and the diode ideality factor were determined by fitting measured current-voltage data to the thermionic emission diffusion equation. It was observed that the barrier height decreased and the ideality factor increased with decreasing temperature, and that the activation energy plot was non-linear at low temperature. These characteristics are attributed to the Gaussian distribution of barrier heights. The capacitance-voltage characteristics of the <span class="hlt">Al</span>/ n-ZnO/ p-Si(100)/<span class="hlt">Al</span> heterostructure diode were studied over a wide temperature range. The impurity concentration in deposited n-type ZnO films was estimated from measured capacitance-voltage data.</p> <div class="credits"> <p class="dwt_author">Kumar, Rajender; Chand, Subhash</p> <p class="dwt_publisher"></p> <p class="publishDate">2015-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">404</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.lsa.umich.edu/psych/research&labs/berridge/researchteam/mike%20robinson/RobinsonArmsonFranklin2011.pdf"> <span id="translatedtitle">BEHAVIORAL NEUROSCIENCE Volkow et <span class="hlt">al</span>., 1988; Terwilliger et <span class="hlt">al</span>., 1991; Stimmel and Kreek,</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">and alpha-1 receptors and causes functional supersensitivity to noradrenaline (Kuriyama et <span class="hlt">al</span>., 1981aIon The treatment of drug addiction is characterized by a high inci- dence of relapse among recovered addicts, even develops during the course of addiction as a result of associations between the rewarding effects</p> <div class="credits"> <p class="dwt_author">Berridge, Kent</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">405</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/servlets/purl/897563"> <span id="translatedtitle">Magnetization anomaly of Nb3<span class="hlt">Al</span> strands and instability of Nb3<span class="hlt">Al</span> Rutherford cables</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">Using a Cu stabilized Nb{sub 3}<span class="hlt">Al</span> strand with Nb matrix, a 30 meter long Nb{sub 3}<span class="hlt">Al</span> Rutherford cable was made by a collaboration of Fermilab and NIMS. Recently the strand and cable were tested. In both cases instability was observed at around 1.5 Tesla. The magnetization of this Nb{sub 3}<span class="hlt">Al</span> strand was measured first using a balanced coil magnetometer at 4.2 K. Strands showed an anomalously large magnetization behavior around at 1.6 T, which is much higher than the usual B{sub c2} {approx} 0.5 Tesla (4.2 K) of Nb matrix. This result is compared with the magnetization data of short strand samples using a SQUID magnetometer, in which a flux-jump signal was observed at 0.5 Tesla, but not at higher field. As a possible explanation for this magnetization anomaly, the interfilament coupling through the thin Nb films in the strands is suggested. The instability problem observed in low field tests of the Nb{sub 3}<span class="hlt">Al</span> Rutherford cables is attributed to this effect.</p> <div class="credits"> <p class="dwt_author">Yamada, Ryuji; /Fermilab; Kikuchi, Akihiro; /Tsukuba Magnet Lab; Wake, Masayoshi; /KEK, Tsukuba</p> <p class="dwt_publisher"></p> <p class="publishDate">2006-08-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">406</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=20000030652&hterms=Al2O3&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D10%26Ntt%3DAl2O3"> <span id="translatedtitle">Cyclic Oxidation of FeCr<span class="hlt">AlY/Al</span>2O3 Composites</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p class="result-summary">Three-ply FeCr<span class="hlt">AlY/Al</span>2O3 composites and FeCr<span class="hlt">Al</span>Y matrix-only samples were cyclically oxidized at 1000 C and 1100 C for up to 1000 1-hr cycles. Fiber ends were exposed at the ends of the composite samples. Following cyclic oxidation, cracks running parallel to and perpendicular to the fibers were observed on the large surface of the composite. In addition, there was evidence of increased scale damage and spallation around the exposed fiber ends, particularly around the middle ply fibers. This damage was more pronounced at the higher temperature. The exposed fiber ends showed cracking between fibers in the outer plies, occasionally with Fe and Cr-rich oxides growing out of the cracks. Large gaps developed at the fiber/matrix interface around many of the fibers, especially those in the outer plies. Oxygen penetrated many of these gaps resulting in significant oxide formation at the fiber/matrix interface far within the composite sample. Around several fibers, the matrix was also internally oxidized showing <span class="hlt">Al</span>2O3 precipitates in a radial band around the fibers. The results show that these composites have poor cyclic oxidation resistance due to the CTE mismatch and inadequate fiber/matrix bond strength at temperatures of 1000 C and above.</p> <div class="credits"> <p class="dwt_author">Nesbitt, James A.; Draper, Susan L.; Barrett, Charles A.</p> <p class="dwt_publisher"></p> <p class="publishDate">1999-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">407</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2014JMEP...23.3778Z"> <span id="translatedtitle"><span class="hlt">Al</span>Nb-Based Titanium Aluminide</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">The microstructure of laser-tungsten inert gas hybrid welded Ti2<span class="hlt">Al</span>Nb-based joints and their tensile properties at room temperature were investigated in this paper. The results showed that good-quality joints could be obtained by hybrid welding process. The microstructure evolution was identified by means of optical microscopy, scanning electron microscopy, x-ray diffraction, and transmission electron microscopy. The fusion zone mainly consisted of B2 phase due to the rapid cooling rate, as well as high Nb content. The phase compositions of the heat-affected zone were varied with different thermal cycles during the welding process. Tensile tests at room temperature showed that fracture tended to occur in the fusion zone, and the tensile strength and elongation were 950 MPa and 4.3%, respectively. The fracture mode was quasi-cleavage based on the observation of the fracture morphology.</p> <div class="credits"> <p class="dwt_author">Zhang, Kezhao; Liu, Ming; Lei, Zhenglong; Chen, Yanbin</p> <p class="dwt_publisher"></p> <p class="publishDate">2014-10-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">408</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/1995RScI...66.1885H"> <span id="translatedtitle">Experimental characterization of <span class="hlt">ALS</span> undulator radiation</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">The radiation from the 5 cm period undulator at the Advanced Light Source (<span class="hlt">ALS</span>) has been characterized using a transmission grating spectrometer. Spectral and angular distributions of radiation were measured for deflection parameter K values between 0.45 and 2.12 at low storage ring current (0.1-0.5 mA). From the calibration of the spectrometer, the absolute flux density of the undulator harmonics has been determined together with the spectral linewidth. The electron-beam emittance was determined by analyzing the angular distribution of the redshifted fundamental. Comparison has been made with radiation calculations based upon the measured magnetic-field data of the undulator. Including field errors, electron-beam emittance, and energy spread, good agreement is found between theoretically and experimentally determined harmonic widths and peak brightness.</p> <div class="credits"> <p class="dwt_author">Heimann, P.; Mossessian, D.; Warwick, A.; Wang, C.; Marks, S.; Padmore, H.; Kincaid, B.; Gullikson, E. M.</p> <p class="dwt_publisher"></p> <p class="publishDate">1995-02-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">409</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/1994sri..meetQ..18H"> <span id="translatedtitle">Experimental characterization of <span class="hlt">ALS</span> undulator radiation</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">The radiation from the 5 cm period undulator at the Advanced Light Source (<span class="hlt">ALS</span>) has been characterized using a transmission grating spectrometer. Spectral and angular distributions of radiation were measured for deflection parameter K values between 0.45 and 2.12 at low storage ring current (0.1-0.5 mA). From the calibration of the spectrometer, the absolute flux density of the undulator harmonics has been determined together with the spectral linewidth. The electron the beam emittance was determined by analyzing the angular distribution of the red-shifted fundamental. Comparison has been made with radiation calculations based upon the measured magnetic field data of the undulator. Including field errors, electron beam emittance and energy spread, good agreement is found between theoretically and experimentally determined harmonic widths and peak brightness.</p> <div class="credits"> <p class="dwt_author">Heimann, P.; Mossessian, D.; Warwick, A.; Gullikson, E.; Wang, C.; Marks, S.; Padmore, H.; Kincaid, B.</p> <p class="dwt_publisher"></p> <p class="publishDate">1994-07-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">410</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://kuscholarworks.ku.edu/handle/1808/5722"> <span id="translatedtitle">Nominalization in Q'anjob'<span class="hlt">al</span> (Maya)</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">morphemes have two sets of alomorphs as shown in Table 1. Table 1. Ergative and absolutive morphemes in Q’anjob’<span class="hlt">al</span> Ergative Absolutive Person/number w-/hin- -in 1person singular ø-/ha- -ach 2person singular y-/ø- -ø 3person singular j-/ko- -on 1...-in-ajin [che wa’-in]. INC-A1s- PROG PRE eat-NOM ‘I am eating.’ c. x-ø-u-chäp [ __ tz’ib’-a-n-ïk] ri ak’wal (Ajsivinac Sián, 2007) COM-A3s-E3p-grab write-VS-AP-NOM DET child ‘The boy started to write.’ In Kiche’ -Vm and -ik indicate...</p> <div class="credits"> <p class="dwt_author">Mateo, Pedro</p> <p class="dwt_publisher"></p> <p class="publishDate">2010-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">411</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/23043345"> <span id="translatedtitle">Removal of phosphate from water using six <span class="hlt">Al</span>-, Fe-, and <span class="hlt">Al</span>-Fe-modified bentonite adsorbents.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">This study was part of a larger effort that involves evaluating alternatives to upgrading secondary treatment systems in the United Arab Emirates for the removal of nutrients. In this study, six modified bentonite (BNT) phosphate adsorbents were prepared using solutions that contained hydroxy-polycations of aluminum (<span class="hlt">Al</span>-BNT), iron (Fe-BNT), and mixtures of aluminum and iron (<span class="hlt">Al</span>-Fe-BNT). The adsorption kinetics and capacities of the six adsorbents were evaluated, and the adsorbents were used to remove phosphorus from synthetic phosphate solutions and from treated wastewater. The experimental adsorption kinetics results were well represented by the pseudo-second-order kinetic model, with R(2) values ranging from 0.99 to 1.00. Similarly, the experimental equilibrium adsorption results were well represented by the Freundlich and Langmuir isotherms, with R(2) values ranging from 0.98 to 1.00. The adsorption capacities of the adsorbents were dependent on the BNT preparation conditions; the types, quantities and combination of metals used; BNT particle size; and adsorption pH. The Langmuir maximum adsorption capacities of the six adsorbents ranged from 8.9-14.5 mg P/g-BNT. The results suggested that the BNT preparations containing Fe alone or in combination with <span class="hlt">Al</span> achieved higher adsorption capacities than the preparations containing only <span class="hlt">Al</span>. However, the <span class="hlt">Al</span>-BNT preparations exhibited higher adsorption rates than the Fe-BNT preparation. Three of the six adsorbents were used to remove phosphate from secondarily treated wastewater samples, and the removal results were comparable to those obtained using synthetic phosphate solutions. The BNT adsorbents also exhibited adequate settling characteristics and significant regeneration potential. PMID:23043345</p> <div class="credits"> <p class="dwt_author">Shanableh, Abdallah M; Elsergany, Moetaz M</p> <p class="dwt_publisher"></p> <p class="publishDate">2013-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">412</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/servlets/purl/348927"> <span id="translatedtitle">Surface structures of <span class="hlt">Al</span>-Pd-Mn and <span class="hlt">Al</span>-Cu-Fe icosahedral quasicrystals</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">In this dissertation, the author reports on the surface structure of i-<span class="hlt">Al</span>-Pd-Mn twofold, threefold, fivefold and i-<span class="hlt">Al</span>-Cu-Fe fivefold surfaces. The LEED studies indicate the existence of two distinct stages in the regrowth of all four surfaces after Ar{sup +} sputtering. In the first stage, upon annealing at relatively low temperature: 500K--800K (depending on different surfaces), a cubic phase appears. The cubic LEED patterns transform irreversibly to unreconstructed quasicrystalline patterns upon annealing to higher temperatures, indicating that the cubic overlayers are metastable. Based upon the data for three chemically-identical, but symmetrically-inequivalent surfaces, a model is developed for the relation between the cubic overlayers and the quasicrystalline substrate. The model is based upon the related symmetries of cubic close-packed and icosahedral-packed materials. These results may be general among <span class="hlt">Al</span>-rich, icosahedral materials. STM study of <span class="hlt">Al</span>-Pd-Mn fivefold surface shows that terrace-step-kink structures start to form on the surface after annealing above 700K. Large, atomic ally-flat terraces were formed after annealing at 900K. Fine structures with fivefold icosahedral symmetry were found on those terraces. Data analysis and comparison of the STM images and structure model of icosahedral <span class="hlt">Al</span>-Pd-Mn suggest that the fine structures in the STM images may be the pseudo Mackay (PMI) clusters which are the structure units of the structure model. Based upon his results, he can conclude that quasicrystalline structures are the stable structures of quasicrystal surfaces. In other words, quasicrystalline structures extend from the bulk to the surface. As a result of the effort reported in this dissertation, he believes that he has increased his understanding of the surface structure of icosahedral quasicrystals to a new level.</p> <div class="credits"> <p class="dwt_author">Shen, Z.</p> <p class="dwt_publisher"></p> <p class="publishDate">1999-02-12</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">413</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/1997NIMPB.123..279Y"> <span id="translatedtitle">26<span class="hlt">Al</span> uptake and accumulation in the rat brain</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">To investigate the cause of Alzheimer's disease (senile dementia), 26<span class="hlt">Al</span> incorporation in the rat brain was studied by accelerator mass spectrometry (AMS). When 26<span class="hlt">Al</span> was injected into healthy rats, a considerable amount of 26<span class="hlt">Al</span> entered the brain (cerebrum) through the blood-brain barrier 5 days after a single injection, and the brain 26<span class="hlt">Al</span> level remained almost constant from 5 to 270 days. On the other hand, the level of 26<span class="hlt">Al</span> in the blood decreased remarkably 75 days after injection. Approximately 89% of the 26<span class="hlt">Al</span> taken in by the brain cell nuclei bound to chromatin. This study supports the theory that Alzheimer's disease is caused by irreversible accumulation of aluminium (<span class="hlt">Al</span>) in the brain, and brain cell nuclei.</p> <div class="credits"> <p class="dwt_author">Yumoto, S.; Nagai, H.; Imamura, M.; Matsuzaki, H.; Hayashi, K.; Masuda, A.; Kumazawa, H.; Ohashi, H.; Kobayashi, K.</p> <p class="dwt_publisher"></p> <p class="publishDate">1997-03-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">414</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2008PhRvB..78r4111Z"> <span id="translatedtitle">Energetics of nonequilibrium solidification in <span class="hlt">Al</span>-Sm</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">Solution-based thermodynamic modeling, aided by first-principles calculations, is employed here to examine phase transformations in the <span class="hlt">Al</span>-Sm binary system which may give rise to product phases that are metastable or have a composition that deviates substantially from equilibrium. In addition to describing the pure undercooled <span class="hlt">Al</span> liquid with a two-state model that accounts for structural ordering, thermodynamic descriptions of the fcc phase, and intermediate compounds ( <span class="hlt">Al</span>4Sm-? , <span class="hlt">Al</span>11Sm3-? , <span class="hlt">Al</span>3Sm-? , and <span class="hlt">Al</span>2Sm-? ) are reanalyzed using special quasirandom structure and first-principles calculations. The possible phase compositions are presented over a range of temperatures using a “Baker-Cahn” analysis of the energetics of solidification and compared with reports of rapid solidification. The energetics associated with varying degrees of chemical partitioning are quantified and compared with experimental observations of the metastable <span class="hlt">Al</span>11Sm3-? primary phase and reports of amorphous solids.</p> <div class="credits"> <p class="dwt_author">Zhou, S. H.; Napolitano, R. E.</p> <p class="dwt_publisher"></p> <p class="publishDate">2008-11-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">415</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/biblio/941089"> <span id="translatedtitle">Appearance of the Bulk Motif in <span class="hlt">Al</span> Clusters</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">We have performed an unbiased search for the lowest-energy structures of medium-sized aluminum clusters <span class="hlt">Al</span>{sub n} (n=19-26) using a genetic algorithm (GA) coupled with a tight-binding interatomic potential. Structural candidates obtained from our GA search were further optimized using density functional theory. It is found that the double icosahedron is not the most stable structure for <span class="hlt">Al</span>{sub 19} but serves as the core for <span class="hlt">Al</span>{sub 20} and <span class="hlt">Al</span>{sub 21}. The lowest-energy structures of <span class="hlt">Al</span>{sub n} are found to undergo a transition to an aluminum bulk motif above <span class="hlt">Al</span>{sub 23}. In particular, the lowest-energy structure of <span class="hlt">Al</span>{sub 26} is almost a fragment of the bulk face-centered-cubic crystal except for the stacking fault at the bottom layer. Anion clusters were also studied.</p> <div class="credits"> <p class="dwt_author">Jiao Sun; Wen-Cai Lu; Ze-Sheng Li; C.Z. Wang; K.M. Ho</p> <p class="dwt_publisher"></p> <p class="publishDate">2008-07-07</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">416</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2008MSMSE..16e5006Z"> <span id="translatedtitle">Atomistically informed solute drag in <span class="hlt">Al</span> Mg</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">Solute drag in solute-strengthened alloys, caused by diffusion of solute atoms around moving dislocations, controls the stress at deformation rates and temperatures useful for plastic forming processes. In the technologically important <span class="hlt">Al</span>-Mg alloys, the solute drag stresses predicted by classical theories are much larger than experiments, which is resolved in general by eliminating the singularity of the dislocation core via Peierls-Nabarro-type models. Here, the drag stress versus dislocation velocity is computed numerically using a realistic dislocation core structure obtained from an atomistic model to investigate the role of the core and obtain quantitative stresses for comparison with experiment. The model solves a discrete diffusion equation in a reference frame moving with the dislocation, with input solute enthalpies and diffusion activation barriers in the core computed by or estimated from atomistic studies. At low dislocation velocities, the solute drag stress is controlled by bulk solute diffusion because the core diffusion occurs too quickly. In this regime, the drag stress can be obtained using a Peierls-Nabarro model with a core spreading parameter tuned to best match the atomistic models. At intermediate velocities, both bulk and core diffusion can contribute to the drag, leading to a complex stress-velocity relationship showing two peaks in stress. At high velocities, the drag stress is controlled solely by diffusion within and across the core. Like the continuum models, the drag stress is nearly linear in solute concentration. The Orowan relationship is used to connect dislocation velocity to deformation strain rate. Accounting for the dependence of mobile dislocation density on stress, the simulations are in good agreement with experiments on <span class="hlt">Al</span>-Mg alloys over a range of concentrations and temperatures.</p> <div class="credits"> <p class="dwt_author">Zhang, F.; Curtin, W. A.</p> <p class="dwt_publisher"></p> <p class="publishDate">2008-07-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">417</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/biblio/935060"> <span id="translatedtitle">The Role of PentaCoordinated <span class="hlt">Al</span>3+ Ions in the High Temperature Phase Transformation of ?-<span class="hlt">Al</span>2O3</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">In this work, the structural stability of gamma-alumina (?-<span class="hlt">Al</span>2O3) was investigated by a combination of XRD and high resolution solid state 27<span class="hlt">Al</span> MAS NMR at an ultra-high magnetic field of 21.1 tesla. XRD measurements show that ?-<span class="hlt">Al</span>2O3 undergoes a phase transition to ?-<span class="hlt">Al</span>2O3 during calcination at 1000oC for 10hr. The formation of the ?-<span class="hlt">Al</span>2O3 phase is further confirmed by 27<span class="hlt">Al</span> MAS NMR; additional 27<span class="hlt">Al</span> peaks centered at 10.5 and ~78 ppm were observed in samples calcined at this high temperature. Both the XRD and NMR results indicate that, after calcination at 1000°C for 10 hrs, the ratio of the ?-<span class="hlt">Al</span>2O3 phase to the total alumina in samples modified by either BaO or La2O3 is significantly reduced in comparison with ?-<span class="hlt">Al</span>2O3. 27<span class="hlt">Al</span> MAS NMR spectra revealed that the reduction in the extent of ?-<span class="hlt">Al</span>2O3 formation was highly correlated with the reduction in the amount of penta-coordinated aluminum ions, measured after 500°C calcination, in both BaO- and La2O3-modified ?-<span class="hlt">Al</span>2O3 samples. These results strongly suggest that the penta-coordinated aluminum ions, present exclusively on the surface of ?-<span class="hlt">Al</span>2O3, play a critical role in the phase transformation of ?-<span class="hlt">Al</span>2O3 to ?-<span class="hlt">Al</span>2O3. The role of the modifiers, in our case BaO or La2O3, is to convert the penta-coordinated aluminum ions into octahedral ones, thereby improving the thermal stabilities of the samples. Oxide additives, on the other hand, had no beneficial effect on preventing the specific surface area reduction that occurred during high temperature (?1000°C) calcination.</p> <div class="credits"> <p class="dwt_author">Kwak, Ja Hun; Hu, Jian Zhi; Lukaski, Adrienne C.; Kim, Do Heui; Szanyi, Janos; Peden, Charles HF</p> <p class="dwt_publisher"></p> <p class="publishDate">2008-06-26</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">418</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/servlets/purl/10192034"> <span id="translatedtitle">The electrochemical behavior of the <span class="hlt">Al</span>{sub 3}Fe intermetallic compound and localized corrosion of impure 1100 <span class="hlt">Al</span></span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">Pitting of 1100 <span class="hlt">Al(Al</span>-1.0(Fe,Cu,Si)) due to <span class="hlt">Al</span>{sub 3}Fe constituent particles has been studied by examining a variety of intrinsic, extrinsic, and environmental factors that contribute to localized corrosion. Consistent with results from other studies, <span class="hlt">Al</span>{sub 3}Fe is noble with respect to its microstructural surroundings and pitting is localized to the particle periphery. Polarization curves indicate that cathodic electron transfer reactions are supported on <span class="hlt">Al</span>{sub 3}Fe at high rates, however, a anodic electron transfer reactions are not. Interparticle spacing appears to play a strong role in determining where pitting will occur, while <span class="hlt">Al</span>{sub 3}Fe particle area plays a lesser role. Solution pH, applied potential, and exposure time each have measurable effects on the electrochemical behavior of <span class="hlt">Al</span>{sub 3}Fe and the {alpha}-<span class="hlt">Al</span> matrix phase which can impact either the galvanic potential of the <span class="hlt">Al</span>{sub 3}Fe/{alpha}-<span class="hlt">Al</span> couple, or charge transfer processes on <span class="hlt">Al</span>{sub 3}Fe particles.</p> <div class="credits"> <p class="dwt_author">Buchheit, R.G.; Maestas, L.M.; Sorensen, N.R.</p> <p class="dwt_publisher"></p> <p class="publishDate">1993-11-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">419</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4282486"> <span id="translatedtitle">Molecular and phenotypic characterization of <span class="hlt">Als</span>1 and <span class="hlt">Als</span>2 mutations conferring tolerance to acetolactate synthase herbicides in soybean</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p class="result-summary">BACKGROUND Sulfonylurea (SU) herbicides are effective because they inhibit acetolactate synthase (<span class="hlt">ALS</span>), a key enzyme in branched-chain amino acid synthesis required for plant growth. A soybean line known as W4-4 was developed through rounds of seed mutagenesis and was demonstrated to have a high degree of <span class="hlt">ALS</span>-based resistance to both post-emergence and pre-emergence applications of a variety of SU herbicides. This report describes the molecular and phenotypic characterization of the <span class="hlt">Als</span>1 and <span class="hlt">Als</span>2 mutations that confer herbicide resistance to SUs and other <span class="hlt">ALS</span> inhibitors. RESULTS The mutations are shown to occur in two different <span class="hlt">ALS</span> genes that reside on different chromosomes: <span class="hlt">Als</span>1 (P178S) on chromosome 4 and <span class="hlt">Als</span>2 (W560L) on chromosome 6 (P197S and W574L in Arabidopsis thaliana). CONCLUSION Although the <span class="hlt">Als</span>1 and <span class="hlt">Als</span>2 genes are unlinked, the combination of these two mutations is synergistic for improved tolerance of soybeans to <span class="hlt">ALS</span>-inhibiting herbicides. © 2014 DuPont Pioneer. Pest Management Science published by JohnWiley & Sons Ltd on behalf of Society of Chemical Industry. PMID:24425499</p> <div class="credits"> <p class="dwt_author">Walter, Kay L; Strachan, Stephen D; Ferry, Nancy M; Albert, Henrik H; Castle, Linda A; Sebastian, Scott A</p> <p class="dwt_publisher"></p> <p class="publishDate">2014-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">420</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2014MMTB...45.2057R"> <span id="translatedtitle">Formation and Thermodynamics of Mg-<span class="hlt">Al</span>-Ti-O Complex Inclusions in Mg-<span class="hlt">Al</span>-Ti-Deoxidized Steel</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">The formation of Mg-<span class="hlt">Al</span>-Ti-O complex inclusions in steel was investigated by laboratory experiments and thermodynamic calculation. The composition evolutions of Mg-<span class="hlt">Al</span>-Ti-O inclusions in steel with different contents of [<span class="hlt">Al</span>], [Mg], and [Ti] were discussed. Mg-<span class="hlt">Al</span>-Ti-O complex inclusion with high TiOx content was liquid at 1873 K (1600 °C), indicating Mg<span class="hlt">Al</span>2O4 spinel inclusions can be modified to low melting temperature ones by combining TiOx component. The stability diagram of <span class="hlt">Al</span>-Mg-Ti-O system inclusions in the molten steel at 1873 K (1600 °C) was calculated, considering many kinds of oxide inclusions such as MgO, <span class="hlt">Al</span>2O3, TiOx, MgTi2O4, Mg<span class="hlt">Al</span>2O4, <span class="hlt">Al</span>2TiO5, and liquid inclusion. The thermodynamic calculations are in good agreement with experimental results, which can predict the formation of <span class="hlt">Al</span>-Mg-Ti-O complex inclusions in molten steel with a large concentration range of [<span class="hlt">Al</span>], [Mg], and [Ti].</p> <div class="credits"> <p class="dwt_author">Ren, Ying; Zhang, Lifeng; Yang, Wen; Duan, Haojian</p> <p class="dwt_publisher"></p> <p class="publishDate">2014-12-01</p> </div> </div> </div> </div> <div id="filter_results_form" class="filter_results_form floatContainer" style="visibility: visible;"> <div style="width:100%" id="PaginatedNavigation" class="paginatedNavigationElement"> <a id="FirstPageLink" onclick='return showDiv("page_1");' href="#" title="First Page"> <img id="FirstPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.first.18x20.png" alt="First Page" /></a> <a id="PreviousPageLink" onclick='return showDiv("page_20");' href="#" title="Previous Page"> <img id="PreviousPageLinkImage" 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<a onClick='return showDiv("page_6");' href="#">6</a> <a onClick='return showDiv("page_7");' href="#">7</a> <a onClick='return showDiv("page_8");' href="#">8</a> <a onClick='return showDiv("page_9");' href="#">9</a> <a onClick='return showDiv("page_10");' href="#">10</a> <a onClick='return showDiv("page_11");' href="#">11</a> <a onClick='return showDiv("page_12");' href="#">12</a> <a onClick='return showDiv("page_13");' href="#">13</a> <a onClick='return showDiv("page_14");' href="#">14</a> <a onClick='return showDiv("page_15");' href="#">15</a> <a onClick='return showDiv("page_16");' href="#">16</a> <a onClick='return showDiv("page_17");' href="#">17</a> <a onClick='return showDiv("page_18");' href="#">18</a> <a onClick='return showDiv("page_19");' href="#">19</a> <a onClick='return showDiv("page_20");' href="#">20</a> <a onClick='return showDiv("page_21");' href="#">21</a> <a style="font-weight: bold;">22</a> <a onClick='return showDiv("page_23");' href="#">23</a> <a onClick='return showDiv("page_24");' href="#">24</a> <a onClick='return showDiv("page_25");' href="#">25</a> </span> </span> <a id="NextPageLink" onclick='return showDiv("page_23");' href="#" title="Next Page"> <img id="NextPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.next.18x20.png" alt="Next Page" /></a> <a id="LastPageLink" onclick='return showDiv("page_25.0");' href="#" title="Last Page"> <img id="LastPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.last.18x20.png" alt="Last Page" /></a> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">421</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/25339547"> <span id="translatedtitle">Effect of Silicate on the Formation and Stability of Ni-<span class="hlt">Al</span> LDH at the ?-<span class="hlt">Al</span>2O3 Surface.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">The formation of mixed metal precipitates has been identified as a significant mechanism for the immobilization and elimination of heavy metal ions. Silicate is present in natural systems ubiquitously, which may interfere with metal uptake on the mineral surface and thereby influences the solubility of the precipitate. Herein, kinetic sorption and dissolution experiments combined with extended X-ray absorption fine structure spectroscopy (EXAFS) were performed to elucidate the effect of silicate on the formation of Ni precipitates at the ?-<span class="hlt">Al</span>2O3 surfaces. The uptake of Ni on ?-<span class="hlt">Al</span>2O3 decreased with increasing amounts of silicate coated onto the ?-<span class="hlt">Al</span>2O3 surface. Results of EXAFS analyses suggested the formation of Ni-<span class="hlt">Al</span> layered double hydroxide (LDH) phases. The surface coating of silicate on ?-<span class="hlt">Al</span>2O3 reduced <span class="hlt">Al</span> release and finally resulted in a high Ni:<span class="hlt">Al</span> ratio due to a lower extent of <span class="hlt">Al</span> substitution into the precipitates. The presence of silicate prevented the growth of the precipitates and led to the formation of less stable Ni-<span class="hlt">Al</span> LDH. The influence of silicate on the precipitate formation provided the evidence for the growth relationship between the precipitate and mineral substrate in the real environment. Increased rates of proton-promoted dissolution of Ni surface precipitates were mainly attributed to higher Ni:<span class="hlt">Al</span> ratios in Ni-<span class="hlt">Al</span> LDH precipitates formed in the presence of silicate. PMID:25339547</p> <div class="credits"> <p class="dwt_author">Tan, Xiaoli; Fang, Ming; Ren, Xuemei; Mei, Huiyang; Shao, Dadong; Wang, Xiangke</p> <p class="dwt_publisher"></p> <p class="publishDate">2014-11-18</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">422</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/25322003"> <span id="translatedtitle">Enhanced spectral response of an <span class="hlt">Al</span>GaN-based solar-blind ultraviolet photodetector with <span class="hlt">Al</span> nanoparticles.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">An enhanced spectral response was realized in an <span class="hlt">Al</span>GaN-based solar-blind ultraviolet (SB-UV) detector using aluminum (<span class="hlt">Al</span>) nanoparticles (NPs) of 20-60 nm. The peak responsivity of the detector (about 288 nm) with 60 nm <span class="hlt">Al</span> NPs is more than two times greater than that of a detector without <span class="hlt">Al</span> NPs under a 5-V bias, reaching 0.288 A/W. To confirm the enhancement mechanism of the <span class="hlt">Al</span> NPs, extinction spectra were simulated using time-domain and frequency-domain finite-element methods. The calculation results show that the dipole surface plasmon resonance wavelength of the <span class="hlt">Al</span> NPs is localized near the peak responsivity position of <span class="hlt">Al</span>GaN-based SB-UV detectors. Thus, the improvement in the detectors can be ascribed to the localized surface plasmon resonance effect of the <span class="hlt">Al</span> NPs. The localized electric field enhancement and related scattering effect result in the generation of more electron-hole pairs and thus a higher responsivity. In addition, the dark current of <span class="hlt">Al</span>GaN-based SB-UV detectors does not increase after the deposition of <span class="hlt">Al</span> nanoparticles. The results presented here is promising for applications of <span class="hlt">Al</span>GaN-based SB-UV detectors. PMID:25322003</p> <div class="credits"> <p class="dwt_author">Bao, Guanghong; Li, Dabing; Sun, Xiaojuan; Jiang, Mingming; Li, Zhiming; Song, Hang; Jiang, Hong; Chen, Yiren; Miao, Guoqing; Zhang, Zhiwei</p> <p class="dwt_publisher"></p> <p class="publishDate">2014-10-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">423</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/biblio/6611923"> <span id="translatedtitle">Microstructures and mechanical behavior of Ni<span class="hlt">Al</span>-Mo and Ni<span class="hlt">Al</span>-MoTi two-phase alloys</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">The phase relationship in the Ni<span class="hlt">Al</span>-Mo system is characterized by a eutectic equilibrium between binary Ni<span class="hlt">Al</span> and the terminal (Mo) solid solution, thereby offering the potential for development of ductile-phase-toughened composites. A study was conducted to evaluate the effect of varying volume fraction of the (Mo) phase on the microstructure, bend strength, and ambient temperature fracture behavior of selected Ni<span class="hlt">Al</span>-Mo two-phase alloys. Above room temperature, the Ni<span class="hlt">Al</span>-Mo alloys showed an increase in bend strength compared to monolithic Ni<span class="hlt">Al</span>, with reasonable strength retention up to [approximately]800 C. A further enhancement in toughness was realized through hot working. Fractography studies showed evidence for substantial decohesion between the (Mo) phase and the Ni<span class="hlt">Al</span> matrix, thereby suggesting the presence of a weak interface. This weak interface between the (Mo) phase and the Ni<span class="hlt">Al</span> matrix, in conjunction with modulus mismatch stresses, causes the crack to deflect from the (Mo) reinforcement and propagate preferentially along the (Mo)/Ni<span class="hlt">Al</span> interface. These attributes limit the potential for significant ductile-phase toughening in the Ni<span class="hlt">Al</span>-Mo system. An addition of 0.2 at. pct Ti resulted in a marked improvement in the room-temperature fracture toughness of Ni<span class="hlt">Al</span>-Mo. Fractography observations show some evidence for (Mo)/Ni<span class="hlt">Al</span> interface strengthening with the Ti addition.</p> <div class="credits"> <p class="dwt_author">Subramanian, P.R.; Mendiratta, M.G. (UES, Inc., Dayton, OH (United States). Materials Research Division); Miracle, D.B. (Air Force Wright Lab., Wright-Patterson AFB, OH (United States))</p> <p class="dwt_publisher"></p> <p class="publishDate">1994-12-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">424</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2006JPCS...67.2091M"> <span id="translatedtitle">X-ray high-pressure study of Ti2<span class="hlt">Al</span>N and Ti2<span class="hlt">Al</span>C</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">The lattice parameters of Ti2<span class="hlt">Al</span>N and Ti2<span class="hlt">Al</span>C powders were measured as a function of pressure up to ?50 GPa, using a synchrotron radiation source and a diamond anvil cell. No phase transformations were observed. As for most related layered carbides and nitrides, such as Ti4<span class="hlt">Al</span>N3 and Ti3SiC2, the compressibilities of Ti2<span class="hlt">Al</span>N and Ti2<span class="hlt">Al</span>C along the c-axes are larger than those along the a-axes. The bulk modulus of Ti2<span class="hlt">Al</span>C at 186±2 GPa, is ?10% higher than that of Ti2<span class="hlt">Al</span>N at 169±3 GPa.</p> <div class="credits"> <p class="dwt_author">Manoun, Bouchaib; Zhang, F. X.; Saxena, S. K.; El-Raghy, T.; Barsoum, M. W.</p> <p class="dwt_publisher"></p> <p class="publishDate">2006-09-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">425</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2012JAP...111c6102O"> <span id="translatedtitle">Sodium-ion conduction in complex hydrides Na<span class="hlt">Al</span>H4 and Na3<span class="hlt">Al</span>H6</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">We have studied sodium-ion conduction in complex hydrides Na<span class="hlt">Al</span>H4 and Na3<span class="hlt">Al</span>H6. The electrical conductivities of these complex hydrides were studied using ac impedance measurements at temperatures up to 363 K for Na<span class="hlt">Al</span>H4 and 433 K for Na3<span class="hlt">Al</span>H6. Nyquist plots obtained by the measurements indicated the sodium-ion conduction. Also, dc measurements showed that sodium-ion transference numbers of Na<span class="hlt">Al</span>H4 and Na3<span class="hlt">Al</span>H6 were almost unity. Na3<span class="hlt">Al</span>H6 exhibited the sodium-ion conduction of 4.1 × 10-4 S/cm at 433 K. This study will open up research on complex hydrides as solid-state sodium-ion conductors.</p> <div class="credits"> <p class="dwt_author">Oguchi, H.; Matsuo, M.; Kuromoto, S.; Kuwano, H.; Orimo, S.</p> <p class="dwt_publisher"></p> <p class="publishDate">2012-02-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">426</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=19910054025&hterms=Al2O3&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D40%26Ntt%3DAl2O3"> <span id="translatedtitle"><span class="hlt">Al</span>-26 and O-16 in the early solar system - Clues from meteoritic <span class="hlt">Al</span>2O3</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p class="result-summary">The study focuses on 26 <span class="hlt">Al</span>2O3 grains up to 20 micron in size recovered from the Murchison C2 chrondite. It is observed that Mg-26/Mg-24 ranges up to 56 times the solar system ratio, but the initial <span class="hlt">Al</span>-26/<span class="hlt">Al</span>-27 ratios do not exceed the canonical maximum of 0.00005 in other meteoritic samples. It is concluded that this ratio represents the abundance of live <span class="hlt">Al</span>-26 in the early solar system, not fossil radiogenic Mg-26 surviving from presolar times. The grains are shown to divide into three groups on the basis of <span class="hlt">Al</span>-26, O-16, Ti, and V content, and distinctive correlations are found for <span class="hlt">Al</span>-26 and O-16. An origin from at least three discrete components is suggested, two of which contained live <span class="hlt">Al</span>-26.</p> <div class="credits"> <p class="dwt_author">Anders, Edward; Lewis, Roy S.; Virag, Alois; Zinner, Ernst</p> <p class="dwt_publisher"></p> <p class="publishDate">1991-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">427</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2013ApPhL.102j1110L"> <span id="translatedtitle">Deep-ultraviolet lasing at 243 nm from photo-pumped <span class="hlt">AlGaN/Al</span>N heterostructure on <span class="hlt">Al</span>N substrate</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">Deep-ultraviolet lasing was achieved at 243.5 nm from an AlxGa1-xN-based multi-quantum-well structure using a pulsed excimer laser for optical pumping. The threshold pump power density at room-temperature was 427 kW/cm2 with transverse electric (TE)-polarization-dominant emission. The structure was epitaxially grown by metalorganic chemical vapor deposition on an <span class="hlt">Al</span>-polar free-standing <span class="hlt">Al</span>N (0001) substrate. Stimulated emission is achieved by design of the active region, optimizing the growth, and the reduction in defect density afforded by homoepitaxial growth of <span class="hlt">Al</span>N buffer layers on <span class="hlt">Al</span>N substrates, demonstrating the feasibility of deep-ultraviolet diode lasers on free-standing <span class="hlt">Al</span>N.</p> <div class="credits"> <p class="dwt_author">Lochner, Zachary; Kao, Tsung-Ting; Liu, Yuh-Shiuan; Li, Xiao-Hang; Mahbub Satter, Md.; Shen, Shyh-Chiang; Douglas Yoder, P.; Ryou, Jae-Hyun; Dupuis, Russell D.; Wei, Yong; Xie, Hongen; Fischer, Alec; Ponce, Fernando A.</p> <p class="dwt_publisher"></p> <p class="publishDate">2013-03-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">428</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/biblio/22089639"> <span id="translatedtitle">Effect of dislocations on electron mobility in <span class="hlt">Al</span>GaN/GaN and <span class="hlt">AlGaN/Al</span>N/GaN heterostructures</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary"><span class="hlt">Al</span>{sub x}Ga{sub 1-x}N/GaN (x = 0.06, 0.12, 0.24) and <span class="hlt">AlGaN/Al</span>N/GaN heterostructures were grown on 6 H-SiC, GaN-on-sapphire, and free-standing GaN, resulting in heterostructures with threading dislocation densities of {approx}2 Multiplication-Sign 10{sup 10}, {approx}5 Multiplication-Sign 10{sup 8}, and {approx}5 Multiplication-Sign 10{sup 7} cm{sup -2}, respectively. All growths were performed under Ga-rich conditions by plasma-assisted molecular beam epitaxy. Dominant scattering mechanisms with variations in threading dislocation density and sheet concentration were indicated through temperature-dependent Hall measurements. The inclusion of an <span class="hlt">Al</span>N interlayer was also considered. Dislocation scattering contributed to reduced mobility in these heterostructures, especially when sheet concentration was low or when an <span class="hlt">Al</span>N interlayer was present.</p> <div class="credits"> <p class="dwt_author">Kaun, Stephen W.; Burke, Peter G.; Kyle, Erin C. H.; Speck, James S. [Materials Department, University of California, Santa Barbara, California 93106 (United States); Wong, Man Hoi; Mishra, Umesh K. [Electrical and Computer Engineering Department, University of California, Santa Barbara, California 93106 (United States)</p> <p class="dwt_publisher"></p> <p class="publishDate">2012-12-24</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">429</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/46501647"> <span id="translatedtitle">The electron metallography of ordering reactions in Fe<span class="hlt">Al</span> alloys</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">The microstructural changes during the ?? Fe<span class="hlt">Al</span>, Fe<span class="hlt">Al</span> ? Fe3<span class="hlt">Al</span>, and ?? Fe3<span class="hlt">Al</span> transitions were studied by transmission electron microscopy. The ordering of ferromagnetic ? was observed to occur in\\u000a a classical manner by the nucleation and growth of particles of the Fe<span class="hlt">Al</span> or Fe3<span class="hlt">Al</span> type phases. However, the ordering of paramagnetic ? to Fe<span class="hlt">Al</span> and paramagnetic Fe<span class="hlt">Al</span> to Fe3<span class="hlt">Al</span></p> <div class="credits"> <p class="dwt_author">P. R. Swann; W. R. Duff; R. M. Fisher</p> <p class="dwt_publisher"></p> <p class="publishDate">1972-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">430</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/23421276"> <span id="translatedtitle">Shock induced reaction of Ni/<span class="hlt">Al</span> nanopowder mixture.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">Nanopowder Ni/<span class="hlt">Al</span> mixture (mixed in <span class="hlt">Al</span>:Ni = 2:1 stoichiometry) was shock compressed by employing single and two-stage light gas gun. The particle size of <span class="hlt">Al</span> and Ni are 100-200 nm and 50-70 nm respectively, morphologies of <span class="hlt">Al</span> and Ni are sphere like either. Recovered product was characterized by scanning electron microscope (SEM) and X-ray diffraction (XRD) analysis. According to the XRD spectrum, the mixed powder undergo complete reaction under shock compression, reaction product consist of Ni2<span class="hlt">Al</span>3, Ni<span class="hlt">Al</span> and corundum structure <span class="hlt">Al</span>2O3 compound. Grain size of Ni-<span class="hlt">Al</span> compound is less than 100 nm. With the shock pressure increasing, the ratio of Ni2<span class="hlt">Al</span>3 decreased obviously. The corundum crystal size is 400-500 nm according to the SEM observation. The results of shock recovery experiments and analysis show that the threshold pressure for reaction of nano size powder Ni/<span class="hlt">Al</span> mixture is much less than that of micro size powder. PMID:23421276</p> <div class="credits"> <p class="dwt_author">Meng, C M; Wei, J J; Chen, Q Y</p> <p class="dwt_publisher"></p> <p class="publishDate">2012-11-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">431</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/biblio/6239660"> <span id="translatedtitle">The physical and mechanical properties of Ni<span class="hlt">Al</span></span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">A critical review of the physical and mechanical properties of Ni<span class="hlt">Al</span> is presented. The physical properties examined include electronic structure and bonding, crystal structure and phase stability, thermodynamic properties, elastic properties, and electrical, magnetic, and thermal properties. Discussion of crystal defects in Ni<span class="hlt">Al</span> include both constitutional and thermal point defects, the core structure and energy of line defects, and planar defects (shear faults, grain boundaries, and free surfaces). The mechanical properties, substructure, and mechanisms of ductility of Ni<span class="hlt">Al</span> single crystals and polycrystals are reviewed in detail, while alloying effects and the deformation of Ni<span class="hlt">Al</span> martensite are briefly described. The fracture toughness, modes of fracture, and cyclic properties reported in the literature are assessed. A critical analysis of diffusion data for Ni<span class="hlt">Al</span> is followed by a discussion of the activation energy and mechanisms of diffusion. This information is related to the creep properties of Ni<span class="hlt">Al</span>, and additional critical comments concerning the substructure and creep mechanisms of Ni<span class="hlt">Al</span> are provided. A review of the environmental resistance of Ni<span class="hlt">Al</span> is followed by a brief discussion of several current and potential applications of Ni<span class="hlt">Al</span>. Concluding remarks include suggestions for future research on Ni<span class="hlt">Al</span>.</p> <div class="credits"> <p class="dwt_author">Miracle, D.B. (Air Force Wright Lab., Wright-Patterson AFB, OH (United States))</p> <p class="dwt_publisher"></p> <p class="publishDate">1993-03-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">432</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2007MMTA...38.1833G"> <span id="translatedtitle">Defect Band Characteristics in Mg-<span class="hlt">Al</span> and <span class="hlt">Al</span>-Si High-Pressure Die Castings</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">Bands of positive macrosegregation and porosity commonly follow the surface contour of components produced by high-pressure die casting (HPDC). In this article, <span class="hlt">Al</span> alloy <span class="hlt">Al</span>Si7Mg and Mg alloys AZ91 and AM60 were cast into tensile test bars using cold-chamber (cc) HPDC. Microstructural characterization revealed that externally solidified crystals (ESCs) are not necessary for defect band formation, and that defect bands can form both near to and relatively far from any surface layer of different microstructure. The defect bands were 140 to 240 ?m thick. In addition to defect-band-related macrosegregation, the castings also contained inverse segregation and surface segregation. Defect bands are shown to have the characteristics of the dilatant shear bands reported in past rheology studies, indicating that defect bands form due to strain localization in partially solid material during the HPDC process.</p> <div class="credits"> <p class="dwt_author">Gourlay, C. M.; Laukli, H. I.; Dahle, A. K.</p> <p class="dwt_publisher"></p> <p class="publishDate">2007-08-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">433</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2007PMM...104..497C"> <span id="translatedtitle">Structure and properties of mechanically alloyed composite materials <span class="hlt">Al/Al</span>-Cu-Fe quasicrystal</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">The structure and properties of metal-matrix <span class="hlt">Al/Al</span>-Cu-Fe-quasicrystal composites produced by compacting mechanically alloyed powders have been studied. An increase in the time of mechanical alloying was found to lead to an increase in the microhardness. Compression tests showed that the failure of samples occurred via the intense formation of cracks along the direction parallel to the applied stresses; the ultimate strength increases with increasing time of mechanical alloying. As the compacting temperature increases, the ultimate strength remains unchanged to temperatures of 300-400°C; at higher temperatures, a marked increase in the ultimate compression strength is observed. An increase in the compacting temperature leads to an improvement of frictional characteristic of samples.</p> <div class="credits"> <p class="dwt_author">Cherdyntsev, V. V.; Kaloshkin, S. D.; Tomilin, I. A.; Shelekhov, E. V.; Laptev, A. I.; Stepashkin, A. A.; Danilov, V. D.</p> <p class="dwt_publisher"></p> <p class="publishDate">2007-11-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">434</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2005JOM....57h..34B"> <span id="translatedtitle">Removing <span class="hlt">Al</span> and regenerating caustic soda from the spent washing liquor of <span class="hlt">Al</span> etching</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">Spent liquor from washing of aluminum section materials after etching with caustic soda (NaOH) has been treated. Aluminum was removed from the liquor and caustic soda was regenerated by adding precipitating agents to hydrolyze sodium aluminate (Na2<span class="hlt">Al</span>O2), separating the aluminumprecipitate, and concentrating free NaOH in the resulting solution for reuse in the etching process. Four systems were investigated: hydrated lime [Ca(OH)2], hydrogen peroxide (H2O2), H2O2/Ca(OH)2 mixture, and dry lime (CaO). Results revealed that CaO was more efficient in the removal of aluminum from the spent liquor with a higher hydrolyzing rate of Na2<span class="hlt">Al</span>O2 than Ca(OH)2, H2O2, or their mixture.</p> <div class="credits"> <p class="dwt_author">Barakat, M. A.; El-Sheikh, S. M.; Farghly, F. E.</p> <p class="dwt_publisher"></p> <p class="publishDate">2005-08-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">435</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2007PhyC..451...19Y"> <span id="translatedtitle">Missing superconductivity in Ba<span class="hlt">Al</span>Si with the <span class="hlt">Al</span>B 2 type structure</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">The solid solutions Ba<span class="hlt">Al</span> 1- xSi 1+ x (0 ? x ? 0.5) were prepared. The compound with the stoichiometric composition ( x = 0) did not show superconductivity as reported by other investigators, but the solid solutions with x > 0 became superconductors with a transition temperature Tc = 2.8 K. The comparison of the lattice parameters with those of the other isotypic ternary superconductors MAlSi (M = Ca, Sr) suggested that the superconductivity could be related to the lattice parameter within the (<span class="hlt">Al</span>Si) plane rather than the interlayer spacing. The band structures near the Fermi level of MAlSi (M = Ca, Sr, Ba) were measured using soft X-ray photoelectron spectroscopy, which were in good agreement with the calculated ones, confirming that the contribution of the d orbitals of the alkaline-earth metals were predominant in the conduction bands.</p> <div class="credits"> <p class="dwt_author">Yamanaka, Shoji; Otsuki, Teruyoshi; Ide, Takayuki; Fukuoka, Hiroshi; Kumashiro, Ryotaro; Rachi, Takeshi; Tanigaki, Katsumi; Guo, FangZhun; Kobayashi, Keisuke</p> <p class="dwt_publisher"></p> <p class="publishDate">2007-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">436</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/servlets/purl/6829007"> <span id="translatedtitle">Kinetic energy distributions of sputtered neutral aluminum clusters: <span class="hlt">Al--Al</span>[sub 6</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">Neutral aluminum clusters sputtered from polycrystalline aluminum were analyzed by laser postionization time-of-flight (TOF) mass spectrometry. The kinetic energy distributions of <span class="hlt">Al</span> through <span class="hlt">Al</span>[sub 6] were measured by a neutrals time-of-flight technique. The interpretation of laser postionization TOF data to extract velocity and energy distributions is presented. The aluminum cluster distributions are qualitatively similar to previous copper cluster distribution measurements from our laboratory. In contrast to the steep high energy tails predicted by the single- or multiple- collision models, the measured cluster distributions have high energy power law dependences in the range of E[sup [minus]3] to E[sup [minus]4.5]. Correlated collision models may explain the substantial abundance of energetic clusters that are observed in these experiments. Possible influences of cluster fragmentation on the distributions are discussed.</p> <div class="credits"> <p class="dwt_author">Coon, S.R.; Calaway, W.F.; Pellin, M.J. (Argonne National Lab., IL (United States)); Curlee, G.A. (Trinity Univ., San Antonio, TX (United States). Dept. of Physics); White, J.M. (Texas Univ., Austin, TX (United States). Dept. of Chemistry and Biochemistry)</p> <p class="dwt_publisher"></p> <p class="publishDate">1992-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">437</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/servlets/purl/10115776"> <span id="translatedtitle">Kinetic energy distributions of sputtered neutral aluminum clusters: <span class="hlt">Al--Al</span>{sub 6}</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">Neutral aluminum clusters sputtered from polycrystalline aluminum were analyzed by laser postionization time-of-flight (TOF) mass spectrometry. The kinetic energy distributions of <span class="hlt">Al</span> through <span class="hlt">Al</span>{sub 6} were measured by a neutrals time-of-flight technique. The interpretation of laser postionization TOF data to extract velocity and energy distributions is presented. The aluminum cluster distributions are qualitatively similar to previous copper cluster distribution measurements from our laboratory. In contrast to the steep high energy tails predicted by the single- or multiple- collision models, the measured cluster distributions have high energy power law dependences in the range of E{sup {minus}3} to E{sup {minus}4.5}. Correlated collision models may explain the substantial abundance of energetic clusters that are observed in these experiments. Possible influences of cluster fragmentation on the distributions are discussed.</p> <div class="credits"> <p class="dwt_author">Coon, S.R.; Calaway, W.F.; Pellin, M.J. [Argonne National Lab., IL (United States); Curlee, G.A. [Trinity Univ., San Antonio, TX (United States). Dept. of Physics; White, J.M. [Texas Univ., Austin, TX (United States). Dept. of Chemistry and Biochemistry</p> <p class="dwt_publisher"></p> <p class="publishDate">1992-12-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">438</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2007PhyS...76..501P"> <span id="translatedtitle">Transition properties of the K? x-ray from <span class="hlt">Al</span> through <span class="hlt">Al</span>XII</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">Transition properties of the K? x-ray from <span class="hlt">Al</span> through <span class="hlt">Al</span>XII have been calculated by using relativistic configuration interaction (RCI) and the multi-configuration Dirac-Fock (MCDF) method in the active interaction approach. The contributions from Breit interaction, quantum electrodynamics (QEDs) corrections and nuclear mass corrections to the initial and final levels have been taken into account. Through the use of the active space method, the calculated values are compared with the available data on He-like and Be-like aluminium and are found to be in very good agreement with them. These data provide the reference value for level lifetime, charge state distribution and the average charge of aluminum plasma.</p> <div class="credits"> <p class="dwt_author">Peng, Feng; Song, Shuqiang; Jiang, Gang</p> <p class="dwt_publisher"></p> <p class="publishDate">2007-11-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">439</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://chem-faculty.ucsd.edu/kummel/pubs/paper/90.pdf"> <span id="translatedtitle">Molecular dynamics simulation comparison of atomic scale intermixing at the amorphous <span class="hlt">Al</span>2O3/semiconductor interface for a-<span class="hlt">Al</span>2O3/Ge, a-<span class="hlt">Al</span>2O3/InGaAs,</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">Molecular dynamics simulation comparison of atomic scale intermixing at the amorphous <span class="hlt">Al</span>2O3/semiconductor interface for a-<span class="hlt">Al</span>2O3/Ge, a-<span class="hlt">Al</span>2O3/InGaAs, and a-<span class="hlt">Al</span>2O3/In<span class="hlt">Al</span>As/InGaAs Evgueni A. Chagarov *, Andrew of a-<span class="hlt">Al</span>2O3/Ge, a-<span class="hlt">Al</span>2O3/In0.5Ga0.5As and a-<span class="hlt">Al</span>2O3/In0.5<span class="hlt">Al</span>0.5As/InGaAs interfaces were investigated</p> <div class="credits"> <p class="dwt_author">Kummel, Andrew C.</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">440</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/39871083"> <span id="translatedtitle">Lap joint properties of FSWed dissimilar formed 5052 <span class="hlt">Al</span> and 6061 <span class="hlt">Al</span> alloys with different thickness</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Lap joint friction stir welding (FSW) between dissimilar 5052-H112 (1 mm) and 6061-T6 (2 mm) <span class="hlt">Al</span> alloys with different thickness\\u000a was carried out with various tool rotation speeds and welding speeds according to the fixed location of each material on bottom\\u000a or top sheet. Interface morphology was characterized by pull-up or pull-down from initial joint line. Amount of vertical material\\u000a transports increased</p> <div class="credits"> <p class="dwt_author">Chang-Yong Lee; Won-Bae Lee; Jong-Woong Kim; Don-Hyun Choi; Yun-Mo Yeon; Seung-Boo Jung</p> <p class="dwt_publisher"></p> <p class="publishDate">2008-01-01</p> </div> </div> </div> </div> <div id="filter_results_form" class="filter_results_form floatContainer" style="visibility: visible;"> <div style="width:100%" id="PaginatedNavigation" class="paginatedNavigationElement"> <a id="FirstPageLink" onclick='return showDiv("page_1");' href="#" title="First Page"> <img id="FirstPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.first.18x20.png" alt="First Page" /></a> <a id="PreviousPageLink" onclick='return showDiv("page_21");' href="#" title="Previous Page"> <img id="PreviousPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.previous.18x20.png" alt="Previous Page" /></a> <span id="PageLinks" class="pageLinks"> <span> <a onClick='return 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showDiv("page_24");' href="#" title="Next Page"> <img id="NextPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.next.18x20.png" alt="Next Page" /></a> <a id="LastPageLink" onclick='return showDiv("page_25.0");' href="#" title="Last Page"> <img id="LastPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.last.18x20.png" alt="Last Page" /></a> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">441</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2013SPIE.8993E..06O"> <span id="translatedtitle">Near-infrared OPO in an <span class="hlt">AlGaAs/Al</span>Ox waveguide</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">Within the ambitious quest for an electrically pumped version of the optical parametric oscillator (OPO), we demonstrate the first near-infrared integrated OPO in a direct gap semiconductor. This nonlinear device is based on a selectively oxidized GaAs/<span class="hlt">Al</span>As heterostructure, the same "<span class="hlt">Al</span>Ox" technology that is at the heart of VCSEL fabrication. The heterostructure and waveguide design allows for type-I form-birefringent phase matching, with a TM00 pump around 1 ?m and TE00 signal and idler around 2 ?m. Relying on the high non-resonant ?(2) of GaAs, relatively weak guided-wave optical losses, and monolithic SiO2/TiO2 dichroic Bragg mirrors, we observe a threshold of 210 mW at degeneracy in the continuous-wave regime, with a single-pass-pump doubly resonant scheme. Further improvement can be achieved by adopting a double-pump-pass scheme and, in a more fundamental way, by further optimizing the waveguide optical losses. The latter are induced by a not entirely mastered <span class="hlt">Al</span>As oxidation process and are of two distinct types: Rayleighlike scattering at signal and idler wavelength (? <= 1cm-1), due to the interface roughness between GaAs and <span class="hlt">Al</span>Ox layers; and absorption at pump wavelengths (? ? 3cm-1), due to volume defects in the GaAs layers adjacent to the aluminum oxide. This result marks a milestone for integrated nonlinear photonics and represents a significant step toward the goal of a broadly tunable coherent light source on chip.</p> <div class="credits"> <p class="dwt_author">Ozanam, C.; Savanier, M.; Lanco, L.; Lafosse, X.; Andronico, A.; Favero, I.; Ducci, S.; Leo, G.</p> <p class="dwt_publisher"></p> <p class="publishDate">2013-12-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">442</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/biblio/6494422"> <span id="translatedtitle">Microstructures and mechanical properties of Ni<span class="hlt">Al</span>-Ni sub 2 <span class="hlt">Al</span>Hf alloys</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">The microstructure and mechanical properties of several Ni-<span class="hlt">Al</span>-Hf alloys in the composition range between Ni<span class="hlt">Al</span>({beta}) and Ni{sub 2}<span class="hlt">Al</span>Hf (Heusler phase) have been studied. The volume fraction of Heusler phase, {ital V}{sub {ital f}}, in these alloys varies from about 15 to 96%. The lattice misfit between the {beta} and Heusler phases in two-phase alloys is larger than 5%, indicating no coherency between them. The yield strength increases with increasing {ital V}{sub {ital f}} at all temperatures to 1000 {degree}C. Compressive ductilities of 4 and 7% were obtained for the alloy with {ital V}{sub {ital f}} of 15% at room temperature and 500 {degree}C, respectively, but they decreased to 0% with increasing {ital V}{sub {ital f}} to 96%. The corresponding fracture mode is basically transgranular cleavage. However, all the alloys can be deformed extensively without fracture at 1000 {degree}C. The hardness of the Heusler alloy is very high (8.3 GPa) at room temperature, and it decreases gently with temperature to 600 {degree}C, followed by a rapid decrease to 1000 {degree}C. The brittleness and high hardness of the Ni{sub 2}<span class="hlt">Al</span>Hf Heusler phase at low temperatures are interpreted in terms of internal lattice distortion resulting from its crystal structure. The thermally activated process of deformation takes place above 600 {degree}C, which is responsible for the rapid drop of the hardness of the alloys.</p> <div class="credits"> <p class="dwt_author">Takeyama, M. (National Research Institute for Metals, 2-3-12 Nakameguro, Meguro-ku, Tokyo 153 (Japan)); Liu, C.T. (Metals and Ceramics Division, Oak Ridge National Laboratory, Oak Ridge, TN (USA))</p> <p class="dwt_publisher"></p> <p class="publishDate">1990-06-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">443</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2014JEMat.tmp..461W"> <span id="translatedtitle"><span class="hlt">AlGaN/Al</span>N-GaN-SL HEMTs with Multiple 2DEG Channels</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">We report on a multichannel approach for <span class="hlt">Al</span>GaN/GaN high-electron-mobility transistors (HEMTs) to increase the carrier mobility in the low and high sheet carrier concentration regimes. Between the <span class="hlt">Al</span>GaN barrier and GaN buffer, alternating thin layers of <span class="hlt">Al</span>N and GaN were inserted to create multiple two-dimensional electron gas (2DEG) channels. All samples were grown by metalorganic vapor-phase epitaxy (MOVPE) on sapphire substrates and compared with conventional single-channel HEMT with the same sheet carrier concentration. For low total 2DEG carrier concentrations (<8 × 1012 cm-2), the mobility for the multichannel HEMT was enhanced due to a reduction of ionized impurity and dislocation scattering, which originates from a backbarrier effect of the underlying <span class="hlt">Al</span>N layers. In the high total carrier concentration regime (>8 × 1012 cm-2), a mobility improvement is attributed to distribution of the sheet charge into multiple 2DEG channels. This has been found to reduce the carrier concentration per individual channel, which leads to larger distance between 2DEG and heterointerfaces and therefore less impact of interface roughness and alloy scattering. With increasing number of channels, phonon scattering is also reduced due to lowering of the three-dimensional (3D) electron density, which results from the added volume of the multiple 2DEGs. With this approach, the HEMT mobility was increased from 1620 cm2 V-1 s-1 to 1960 cm2 V-1 s-1 for a triple-channel device at sheet carrier concentration of 7.5 × 1012 cm-2.</p> <div class="credits"> <p class="dwt_author">Wille, Ada; Yacoub, Hady; Debald, Arne; Kalisch, Holger; Vescan, Andrei</p> <p class="dwt_publisher"></p> <p class="publishDate">2014-11-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">444</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/40731864"> <span id="translatedtitle">Lithostratigraphy and planktonic foraminiferal biostratigraphy of the late Eocene-Middle Miocene sequence in the area between Wadi <span class="hlt">Al</span> Zeitun and Wadi <span class="hlt">Al</span> Rahib, <span class="hlt">Al</span> Bardia area, northeast Libya</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">The present study deals with the lithostratigraphy and planktonic foraminiferal biostratigraphy of the Late Eocene-Middle Miocene sequence in the <span class="hlt">Al</span> Bardia area, northeast Libya. The lithostratigraphical studies carried out on three stratigraphical surface sections, namely Wade <span class="hlt">Al</span> Rahib, Wadi <span class="hlt">Al</span> Hash and Wadi <span class="hlt">Al</span> Zeitun, led to the recognition of three rock units from base to top: (1) the <span class="hlt">Al</span></p> <div class="credits"> <p class="dwt_author">Mostafa M. Imam</p> <p class="dwt_publisher"></p> <p class="publishDate">1999-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">445</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3299873"> <span id="translatedtitle">A Monoclonal Antibody Specific for Candida albicans <span class="hlt">Als</span>4 Demonstrates Overlapping Localization of <span class="hlt">Als</span> Family Proteins on the Fungal Cell Surface and Highlights Differences between <span class="hlt">Als</span> Localization in vitro and in vivo</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p class="result-summary">The Candida albicans <span class="hlt">ALS</span> (agglutinin-like sequence) family encodes large cell-surface glycoproteins that function in adhesion of the fungus to host and abiotic surfaces. Monoclonal antibodies (mAbs) specific for each <span class="hlt">Als</span> protein were developed to study <span class="hlt">Als</span> localization on the C. albicans surface. An anti-<span class="hlt">Als</span>4 mAb demonstrated that <span class="hlt">Als</span>4 covers the surface of yeast cells, with a greater abundance of <span class="hlt">Als</span>4 on cells grown at 30°C compared to 37°C. On germ tubes, <span class="hlt">Als</span>4 is localized in a restricted area proximal to the mother yeast. Immunolabeling with several anti-<span class="hlt">Als</span> mAbs showed overlapping localization of <span class="hlt">Als</span>1 and <span class="hlt">Als</span>4 on yeast cells and <span class="hlt">Als</span>1, <span class="hlt">Als</span>3 and <span class="hlt">Als</span>4 on germ tubes. Overlapping localization of <span class="hlt">Als</span> proteins was also observed on yeast and hyphae recovered from mouse models of disseminated and oral candidiasis. Differences between <span class="hlt">Als</span> localization in vivo and in vitro suggested changes in regulation of <span class="hlt">Als</span> production in the host compared to the culture flask. Characterization with the anti-<span class="hlt">Als</span> mAbs reveals the simultaneous presence and differences in relative abundance of <span class="hlt">Als</span> proteins, creating an accurate image of <span class="hlt">Als</span> representation and localization that can be used to guide conclusions regarding individual and collective <span class="hlt">Als</span> protein function. PMID:22106872</p> <div class="credits"> <p class="dwt_author">Coleman, David A.; Oh, Soon-Hwan; Manfra-Maretta, Sandra L.; Hoyer, Lois L.</p> <p class="dwt_publisher"></p> <p class="publishDate">2011-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">446</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/22106872"> <span id="translatedtitle">A monoclonal antibody specific for Candida albicans <span class="hlt">Als</span>4 demonstrates overlapping localization of <span class="hlt">Als</span> family proteins on the fungal cell surface and highlights differences between <span class="hlt">Als</span> localization in vitro and in vivo.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">The Candida albicans agglutinin-like sequence (<span class="hlt">ALS</span>) family encodes large cell surface glycoproteins that function in adhesion of the fungus to host and abiotic surfaces. Monoclonal antibodies (mAbs) specific for each <span class="hlt">Als</span> protein were developed to study <span class="hlt">Als</span> localization on the C. albicans surface. An anti-<span class="hlt">Als</span>4 mAb demonstrated that <span class="hlt">Als</span>4 covers the surface of yeast cells, with a greater abundance of <span class="hlt">Als</span>4 on cells grown at 30 °C compared to 37 °C. On germ tubes, <span class="hlt">Als</span>4 is localized in a restricted area proximal to the mother yeast. Immunolabeling with several anti-<span class="hlt">Als</span> mAbs showed overlapping localization of <span class="hlt">Als</span>1 and <span class="hlt">Als</span>4 on yeast cells and <span class="hlt">Als</span>1, <span class="hlt">Als</span>3 and <span class="hlt">Als</span>4 on germ tubes. Overlapping localization of <span class="hlt">Als</span> proteins was also observed on yeast and hyphae recovered from mouse models of disseminated and oral candidiasis. Differences between <span class="hlt">Als</span> localization in vivo and in vitro suggested changes in regulation of <span class="hlt">Als</span> production in the host compared to the culture flask. Characterization with the anti-<span class="hlt">Als</span> mAbs reveals the simultaneous presence and differences in relative abundance of <span class="hlt">Als</span> proteins, creating an accurate image of <span class="hlt">Als</span> representation and localization that can be used to guide conclusions regarding individual and collective <span class="hlt">Als</span> protein function. PMID:22106872</p> <div class="credits"> <p class="dwt_author">Coleman, David A; Oh, Soon-Hwan; Manfra-Maretta, Sandra L; Hoyer, Lois L</p> <p class="dwt_publisher"></p> <p class="publishDate">2012-04-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">447</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://arxiv.org/pdf/astro-ph/9606155v2"> <span id="translatedtitle">Comment on Cowsik et <span class="hlt">al.'s</span> "The Dispersion Velocity of Galactic Dark Matter Particles"</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">In a recent Letter (astro-ph/9605001), Cowsik et <span class="hlt">al</span>. claim that the best fit value of the velocity dispersion of the Galactic dark matter is 600 kms. This result is obtained by a numerical method of solving the coupled self-gravitation equations, assuming Maxwellian velocity distributions. The rotation curve presented in their original paper is not the whole story, as it does not match onto the spherical self-gravitating halo with a Maxwellian velocity distribution -- as it must. This was pointed out in the original version of this Comment. In their Reply (astro-ph/9608035), Cowsik et <span class="hlt">al</span>. provide a rotation curve that does behave with the correct asymptotics. Unfortunately, it violates mass estimates of the Local Group by over an order of magnitude. It is the pressure required to balance the weight of the overlying layers of this phenomenal mass at large radii that is the physical origin of Cowsik et <span class="hlt">al</span>'s anomalously high dark matter velocity dispersion.</p> <div class="credits"> <p class="dwt_author">Wyn Evans</p> <p class="dwt_publisher"></p> <p class="publishDate">1996-06-25</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">448</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://csdrm.caltech.edu/publications/cit-asci-tr/cit-asci-tr218.pdf"> <span id="translatedtitle">Adhesion and nonwetting-wetting transition in the <span class="hlt">Al</span> -<span class="hlt">Al</span>2O3 interface Qing Zhang, Tahir C agin, Adri van Duin, and William A. Goddard III</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">Adhesion and nonwetting-wetting transition in the <span class="hlt">Al</span>Ã? -<span class="hlt">Al</span>2O3 interface Qing Zhang, Tahir C¸ agin properties, of both solid and liquid <span class="hlt">Al</span>/ -<span class="hlt">Al</span>2O3 interfaces. The ReaxFF was developed solely with ab initio calculations on various phases of <span class="hlt">Al</span> and <span class="hlt">Al</span>2O3 and <span class="hlt">Al</span>-O-H clusters. Our computed lattice constants, elastic</p> <div class="credits"> <p class="dwt_author"></p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">449</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2013JPhCS.443a2025L"> <span id="translatedtitle">Vacancy-induced hardening in Fe-<span class="hlt">Al</span> alloys</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">Hardness of Fe-<span class="hlt">Al</span> alloys shows a non-trivial dependence on chemical composition and thermal treatment of samples and cannot be fully explained by consideration of intermetallic phases formed according to the equilibrium phase diagram of Fe-<span class="hlt">Al</span> system. Hardening in Fe-<span class="hlt">Al</span> alloys caused by quenched-in non-equilibrium vacancies was studied in this work. Non-equilibrium vacancies introduced into the alloys by quenching from 1000 °C were detected by means of positron annihilation spectroscopy. The concentration of quenched-in vacancies was found to strongly increase with increasing <span class="hlt">Al</span> content from ? 10-5 at.-1 in the alloy with c<span class="hlt">Al</span> = 18 at. % up to ? 10-1 at.-1 in the alloy with c<span class="hlt">Al</span> = 45 at. %. Comparison of the vacancy concentration and the Vickers microhardness revealed that hardening is proportional to square root of concentration of quenched-in vacancies.</p> <div class="credits"> <p class="dwt_author">Luká?, F.; ?ížek, J.; Procházka, I.; Jirásková, Y.; Jani?kovi?, D.; Anwand, W.; Brauer, G.</p> <p class="dwt_publisher"></p> <p class="publishDate">2013-06-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">450</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=20030112241&hterms=materials+automotive+engineering&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D40%26Ntt%3Dmaterials%2Bautomotive%2Bengineering"> <span id="translatedtitle">Cost-Effective Ti<span class="hlt">Al</span> based Materials</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p class="result-summary">Because of their inherent low ductility, Ti<span class="hlt">Al</span>-based materials are difficult to fabricate, especially thin gage titanium gamma aluminide (Ti<span class="hlt">Al</span>) sheet and foil. In this paper, an innovative powder metallurgy approach for producing cost-effective thin gage Ti<span class="hlt">Al</span> sheets (with 356 mm long and 235 mm wide, and a thickness of 0.74, 1.09, 1.55, and 2.34 mm, respectively) is presented. The microstructures and tensile properties at room and elevated temperatures of the thin gage Ti<span class="hlt">Al</span> are studied. Results show that these Ti<span class="hlt">Al</span> sheets have a relatively homogenous chemistry, uniform microstructure, and acceptable mechanical properties. This work demonstrates a cost-effective method for producing both flat products (sheet/foil) and complex chunky parts of Ti<span class="hlt">Al</span> for various advanced applications including aerospace and automotive industries.</p> <div class="credits"> <p class="dwt_author">Moxson, V. S.; Sun, Fusheng; Draper, Susan L.; Froes, F. H.; Duz, V.</p> <p class="dwt_publisher"></p> <p class="publishDate">2003-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">451</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/25289585"> <span id="translatedtitle">A fruitful endeavor: Modeling <span class="hlt">ALS</span> in the fruit fly.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">For over a century Drosophila melanogaster, commonly known as the fruit fly, has been instrumental in genetics research and disease modeling. In more recent years, it has been a powerful tool for modeling and studying neurodegenerative diseases, including the devastating and fatal amyotrophic lateral sclerosis (<span class="hlt">ALS</span>). The success of this model organism in <span class="hlt">ALS</span> research comes from the availability of tools to manipulate gene/protein expression in a number of desired cell-types, and the subsequent recapitulation of cellular and molecular phenotypic features of the disease. Several Drosophila models have now been developed for studying the roles of <span class="hlt">ALS</span>-associated genes in disease pathogenesis that allowed us to understand the molecular pathways that lead to motor neuron degeneration in <span class="hlt">ALS</span> patients. Our primary goal in this review is to highlight the lessons we have learned using Drosophila models pertaining to <span class="hlt">ALS</span> research. This article is part of a Special Issue entitled <span class="hlt">ALS</span> complex pathogenesis. PMID:25289585</p> <div class="credits"> <p class="dwt_author">Casci, Ian; Pandey, Udai Bhan</p> <p class="dwt_publisher"></p> <p class="publishDate">2014-10-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">452</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2003APS..MARY15012C"> <span id="translatedtitle">Iron d-band occupancy in Ni<span class="hlt">Al</span> intermetallics</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">Iron when sitting at <span class="hlt">Al</span> sites in intermetallic Ni<span class="hlt">Al</span> has been shown to expand the lattice and produce an unusual solid solution softening effect. First-principles calculations predict that an Fe atom develops a large magnetic moment and an expanded effective atomic size when it occupies a site on the <span class="hlt">Al</span>-sublattice(1). In this study, electron energy loss spectroscopy was used to examine the magnetic characteristics of Fe substituted on the Ni and <span class="hlt">Al</span> sites in the B2 ordered Ni<span class="hlt">Al</span> compound. We have found a higher L-edge branching ratio for Fe when on the <span class="hlt">Al</span> site compared to Fe on the Ni site. This corresponds to an enhanced magnetic moment of Fe confirming the theoretical predication. (1) C.T. Liu, C.L. Fu, L.M.Pike and D.S. Easton, Acta Materialia 50 3203 (2002).</p> <div class="credits"> <p class="dwt_author">Chisholm, M. F.; Fu, C. L.; Liu, C. T.</p> <p class="dwt_publisher"></p> <p class="publishDate">2003-03-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">453</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=3182412"> <span id="translatedtitle">The Role of Immune and Inflammatory Mechanisms in <span class="hlt">ALS</span></span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p class="result-summary">Amyotrophic lateral sclerosis (<span class="hlt">ALS</span>) is a severe progressive neurodegenerative disease. The cause is unknown, but genetic abnormalities have been identified in subjects with familial <span class="hlt">ALS</span> and also in subjects with sporadic <span class="hlt">ALS</span>. Environmental factors such as occupational exposure have been shown to be risk factors for the development of <span class="hlt">ALS</span>. Patients differ in their clinical features and differ in the clinical course of disease. Immune abnormalities have been found in the central nervous system by pathological studies and also in the blood and CSF of subjects with <span class="hlt">ALS</span>. Inflammation and immune abnormalities are also found in animals with a model of <span class="hlt">ALS</span> due to mutations in the SOD1 gene. Previously it has been considered that immune abnormalities might contribute to the pathogenesis of disease. However more recently it has become apparent that an immune response can occur as a response to damage to the nervous system and this can be protective. PMID:21375489</p> <div class="credits"> <p class="dwt_author">McCombe, P.A; Henderson, R.D</p> <p class="dwt_publisher"></p> <p class="publishDate">2011-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">454</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2013AIPC.1536.1023J"> <span id="translatedtitle">Magnetic properties of <span class="hlt">Al</span>/57Fe/Cr multilayers</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">Conversion Electron Mössbauer Spectroscopy (CEMS) and DC magnetization are used to compare magnetic properties of as-deposited multilayer (MLS) and Fe2Cr<span class="hlt">Al</span> thin film made from <span class="hlt">Al</span>/57Fe/Cr MLS deposited by ion beam sputtering and then annealed in UHV. Interdiffusion of elements on annealing sample-1 at 500°C leads to formation of a single, disordered film of Fe2Cr<span class="hlt">Al</span> as evidenced by hyperfine field values obtained by CEMS in the film which compares well with that in bulk Fe2Cr<span class="hlt">Al</span>. CEMS also shows contributions from Fe, Fe/Cr and Fe/<span class="hlt">Al</span> interfaces in the MLS. Saturation magnetization of as-deposited sample-1 is much less than pure Fe due to reduced Fe thickness because of interface formation and also reduction in Fe-Fe interaction due to intervening <span class="hlt">Al</span> and Cr layers.</p> <div class="credits"> <p class="dwt_author">Jani, Snehal; Lakshmi, N.; Jain, Vishal; Reddy, V. R.; Gupta, Ajay; Venugopalan, K.</p> <p class="dwt_publisher"></p> <p class="publishDate">2013-06-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">455</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/biblio/462721"> <span id="translatedtitle">Synthesis and characterization of Ln/<span class="hlt">Al</span> pillared clays</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">Pillared clays might be an alternative to traditional microporous alumina or zeolite-based catalysts provided they have thermal and structural stability to withstand the severe conditions during reaction or regeneration. La{sup 3+}-<span class="hlt">Al</span>{sup 3+} and Ce{sup 3+}-<span class="hlt">Al</span>{sup 3+} pillar precursors were synthesized and intercalated in swelling montmorillonite type clays. {sup 27}-<span class="hlt">Al</span>-NMR and {sup 139}La-NMR spectra do not confirm chemical interaction between <span class="hlt">Al</span> and La ions in solution, but after pillaring and calcination (400 C) d-spacings in the range 18.5 {angstrom}--20.5 {angstrom} indicate indeed a strong interaction between the <span class="hlt">Al</span>-La-species. Also, Cd{sup 4+} (Sulfate) cations do interact with <span class="hlt">Al</span>{sup 3+} in the pillar-precursor-solution, into the pH interval 2.78 {le} pH {le} 3.99.</p> <div class="credits"> <p class="dwt_author">Lopez-Ortega, A.; Dominguez, J.M.; Rojas-Hernandez, A.; Benitez-Patricio, A.; Salmon, M.</p> <p class="dwt_publisher"></p> <p class="publishDate">1996-12-31</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">456</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2012AIPC.1447..961R"> <span id="translatedtitle">Characterization of SDC-<span class="hlt">Al</span>2O3 solid electrolyte</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">SDC20-<span class="hlt">Al</span>2O3 materials were synthesized through the sol-gel method. Dense SDC20-<span class="hlt">Al</span>2O3 ceramics were obtained through sintering the pellets at 1300°C. SDC20-<span class="hlt">Al</span>2O3 materials were characterized by XRD, SEM and impedance spectroscopy. XRD measurements indicate that synthesized materials crystallized in cubic structure. Average crystallite size of the samples was in the range 11-12 nm. The relative density of SDC20-<span class="hlt">Al</span>2O3 samples was over 95% of the theoretical density. Addition of <span class="hlt">Al</span>2O3 promotes densification. Surface morphology was analyzed using SEM. The two-probe a.c. impedance spectroscopy was used to study the total ionic conductivity of doped and co-doped ceria in the temperature range 350-700°C. The SDC20-<span class="hlt">Al</span>2O3 composition showed improved total ionic conductivity and minimum activation energy.</p> <div class="credits"> <p class="dwt_author">Ramesh, S.; Raju, K. C. James; Reddy, C. Vishnuvardhan</p> <p class="dwt_publisher"></p> <p class="publishDate">2012-06-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">457</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=19960021028&hterms=Journal+Positive+Behavior+Interventions&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D50%26Ntt%3DJournal%2BPositive%2BBehavior%2BInterventions"> <span id="translatedtitle">3DGRAPE/<span class="hlt">AL</span> User's Manual</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p class="result-summary">This document is a users' manual for a new three-dimensional structured multiple-block volume g generator called 3DGRAPE/<span class="hlt">AL</span>. It is a significantly improved version of the previously-released a widely-distributed programs 3DGRAPE and 3DMAGGS. It generates volume grids by iteratively solving the Poisson Equations in three-dimensions. The right-hand-side terms are designed so that user-specific; grid cell heights and user-specified grid cell skewness near boundary surfaces result automatically, with little user intervention. The code is written in Fortran-77, and can be installed with or without a simple graphical user interface which allows the user to watch as the grid is generated. An introduction describing the improvements over the antecedent 3DGRAPE code is presented first. Then follows a chapter on the basic grid generator program itself, and comments on installing it. The input is then described in detail. After that is a description of the Graphical User Interface. Five example cases are shown next, with plots of the results. Following that is a chapter on two input filters which allow use of input data generated elsewhere. Last is a treatment of the theory embodied in the code.</p> <div class="credits"> <p class="dwt_author">Sorenson, Reese L.; Alter, Stephen J.</p> <p class="dwt_publisher"></p> <p class="publishDate">1995-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">458</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4137030"> <span id="translatedtitle">Urethrocutaneous fistula post-<span class="hlt">Al</span>-Ghorab shunt</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p class="result-summary">Priapism is a rare event that may be induced by clinical conditions and medications. Ischemic priapism (IP) is a compartment syndrome of the penis, and it constitutes a medical emergency that may cause significant morbidity on the erectile function in particular. We report a case of a 30-year-old male in his fourth episode of priapism. The aspiration and washing of the corpora cavernosa with saline solution were performed, followed by washing with adrenaline solution without resolution of the condition. Treatment was followed by the performance of the <span class="hlt">Al</span>-Ghorab shunt procedure with dorsal incision of the glans. During follow-up, an area of necrosis distal to the incision was detected, and after the catheter removal on postoperative day 14, the patient developed a glandular dorsal urethrocutaneous fistula and meatal stenosis. The meatal stenosis was corrected by Johanson urethroplasty with a neo-meatus at the coronal sulcus, along with resection and debridement of the fistula tract and a three-layer closure. PMID:25210568</p> <div class="credits"> <p class="dwt_author">Paladino, João Roberto; Wroclawski, Marcelo; Den Julio, Alexandre; Teixeira, Gabriel Kushyama; Glina, Sidney; Lima Pompeo, Antonio Carlos</p> <p class="dwt_publisher"></p> <p class="publishDate">2014-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">459</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=19910016882&hterms=housing+prices&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D80%26Ntt%3Dhousing%2Bprices"> <span id="translatedtitle"><span class="hlt">ALS</span> liquid hydrogen turbopump: Advanced Development Program</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p class="result-summary">The point of departure (POD) turbopump concept was reviewed and finalized. The basis for the POD was the configuration presented in the Aerojet proposal. After reviewing this proposal concept, several modifications were made. These modifications include the following: (1) the dual pump discharge arrangement was changed to a single discharge; (2) commonality of the turbine inlet manifold with the advanced launch system (<span class="hlt">ALS</span>) liquid oxygen (LOX) TPA was dropped for this program; (3) the turbine housing flange arrangement was improved by relocating it away from the first stage nozzles; (4) a ten percent margin (five percent diameter increase) was built into the impeller design to ensure meeting the required discharge pressure without the need for increasing speed; (5) a ten percent turbine power margin was imposed which is to be obtained by increasing turbine inlet pressure if required; and (6) the backup concept, as an alternative to the use of cast impellers, now incorporates forged/machined shrouded impellers, rather than the unshrouded type originally planned.</p> <div class="credits"> <p class="dwt_author">Shimp, Nancy R.; Claffy, George J.</p> <p class="dwt_publisher"></p> <p class="publishDate">1989-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">460</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2013PhPro..50..206Z"> <span id="translatedtitle">Preparation of <span class="hlt">Al</span>-Cr-Fe Coatings by Heat Treatment of Electrodeposited Cr/<span class="hlt">Al</span> Composite Coatings</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary"><span class="hlt">Al</span>-Cr-Fe coatings have been widely used in the surface engineering field of materials, due to their excellent corrosion resistance to water vapor and fused salt deposits. In this study, a new two-step approach was developed to prepare <span class="hlt">Al</span>-Cr-Fe coatings on surfaces of SUS430 stainless steels. First, the Cr/<span class="hlt">Al</span> composite coatings were prepared by electrodepositing Cr from aqueous solution then electrodepositing <span class="hlt">Al</span> from <span class="hlt">Al</span>Cl3-1-ethyl-3-methyl-imidazolium chloride (<span class="hlt">Al</span>Cl3-EMIC) ionic liquid on SUS430 stainless steel substrate. In the second, heat treatment of the Cr/<span class="hlt">Al</span> composite coatings was carried out to acquire <span class="hlt">Al</span>-Cr-Fe coatings. Effects of the thickness of Cr/<span class="hlt">Al</span> composite coatings, the time and temperature of heat treatment on composition and phase structure of alloy layers were studied by using scanning electron microscope (SEM), backscattered electron (BSE), energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD). The structure transformation process and formation mechanism of <span class="hlt">Al</span>-Cr-Fe coatings were discussed.</p> <div class="credits"> <p class="dwt_author">Zhang, Min; Chen, Chang'an; Zhang, Guikai; Rao, Yongchu; Ling, Guoping</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div id="filter_results_form" class="filter_results_form floatContainer" style="visibility: visible;"> <div style="width:100%" id="PaginatedNavigation" class="paginatedNavigationElement"> <a id="FirstPageLink" onclick='return showDiv("page_1");' href="#" title="First Page"> <img id="FirstPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.first.18x20.png" alt="First Page" /></a> <a id="PreviousPageLink" onclick='return showDiv("page_22");' href="#" title="Previous Page"> <img id="PreviousPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.previous.18x20.png" alt="Previous Page" /></a> <span id="PageLinks" 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id="NextPageLink" onclick='return showDiv("page_25");' href="#" title="Next Page"> <img id="NextPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.next.18x20.png" alt="Next Page" /></a> <a id="LastPageLink" onclick='return showDiv("page_25.0");' href="#" title="Last Page"> <img id="LastPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.last.18x20.png" alt="Last Page" /></a> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">461</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2014JCrGr.402..222M"> <span id="translatedtitle">Defect analysis in <span class="hlt">Al</span>GaN layers on <span class="hlt">Al</span>N templates obtained by epitaxial lateral overgrowth</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">The defect distribution in thick <span class="hlt">Al</span>N layers obtained by epitaxial lateral overgrowth (ELO-<span class="hlt">Al</span>N) has been analyzed as a function of the miscut direction of the patterned sapphire substrate. A 0.25° miscut toward the sapphire a-plane leads to formation of smooth ELO-<span class="hlt">Al</span>N layers containing vertical coalescence grain boundaries and exhibiting an almost homogeneous threading dislocation (TD) distribution with a TD density ranging from 5×108 cm-2 to 8×108 cm-2. In contrast, a 0.25° miscut toward the sapphire m-plane results in formation of periodically arranged macrosteps on the surface of the coalesced ELO-<span class="hlt">Al</span>N layers as well as formation of inclined coalescence grain boundaries leading to an inhomogeneous TD distribution. A subsequent AlxGa1-xN deposition onto ELO-<span class="hlt">Al</span>N template with surface macrosteps leads to Ga enrichment on the step sidewalls and, for lower <span class="hlt">Al</span>-contents (e.g. x=0.5), even to additional defect formation. For higher <span class="hlt">Al</span> contents (e.g. x=0.8) no additional threading dislocations are formed in the <span class="hlt">Al</span>GaN layers and the observed TD density corresponds to that of the ELO-<span class="hlt">Al</span>N template: less than 108 cm-2 in the wing regions and from 6×108 cm-2 to 9×108 cm-2 above the ridges. Compressive strain during growth of <span class="hlt">Al</span>0.8Ga0.2N on ELO-<span class="hlt">Al</span>N tends to be compensated by threading dislocation inclination. However, due to the low TD densities the inclination angles are more than 3 times larger than those observed in <span class="hlt">Al</span>0.8Ga0.2N layers on planar <span class="hlt">Al</span>N/sapphire templates.</p> <div class="credits"> <p class="dwt_author">Mogilatenko, Anna; Küller, Viola; Knauer, Arne; Jeschke, J.; Zeimer, Ute; Weyers, Markus; Tränkle, Günther</p> <p class="dwt_publisher"></p> <p class="publishDate">2014-09-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">462</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2013JAP...114c3706L"> <span id="translatedtitle">Magnetotransport properties of high equivalent <span class="hlt">Al</span> composition <span class="hlt">Al</span>GaN/GaN heterostructures using <span class="hlt">Al</span>N/GaN superlattice as a barrier</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">Magnetotransport properties of the two-dimensional electron gas (2DEG) in high equivalent <span class="hlt">Al</span> composition <span class="hlt">Al</span>GaN/GaN heterostructures using <span class="hlt">Al</span>N/GaN superlattice as a barrier have been studied at low temperatures and high magnetic fields. Well resolved Shubnikov-de Haas oscillations were observed, indicating excellent quality of the quasi-<span class="hlt">Al</span>GaN/GaN heterostructures. It is measured that the energy separation between the two subbands in the GaN triangular quantum well can be as large as 180.5 meV, depicting strong quantum confinement at the heterointerface. The strong quantum confinement results in a high 2DEG density of 2 × 1013 cm-2. The persistent photoconductivity investigation also indicates that the superlattice barrier layer has a low density of impurities/defects. It is believed that the <span class="hlt">Al</span>N/GaN superlattice, instead of high <span class="hlt">Al</span> composition alloy <span class="hlt">Al</span>GaN layer, could greatly improve the device performance.</p> <div class="credits"> <p class="dwt_author">Liu, S. D.; Tang, N.; Shen, X. Q.; Duan, J. X.; Lu, F. C.; Yang, X. L.; Xu, F. J.; Wang, X. Q.; Ide, T.; Shimizu, M.; Ge, W. K.; Shen, B.</p> <p class="dwt_publisher"></p> <p class="publishDate">2013-07-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">463</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/biblio/1009339"> <span id="translatedtitle">Creep in {alpha}-<span class="hlt">Al</span>{sub 2}O{sub 3} thermally grown on {beta}-Ni<span class="hlt">Al</span> and Ni<span class="hlt">Al</span>Pt alloys.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">We have measured creep relaxation in {alpha}-<span class="hlt">Al</span>{sub 2}O{sub 3}, thermally grown on stoichiometric {beta}-Ni<span class="hlt">Al</span>, and on {beta}- and {gamma}{prime}-phase alloys of Ni-<span class="hlt">Al</span>-Pt at temperatures between 950-1100 C. Creep was monitored using in-situ measurements of strain relaxation in the oxide following the sudden imposition of a stress. A stress was imposed by abruptly changing the sample temperature, exploiting the thermal expansion difference between oxide and substrate. The in-plane elastic strain was obtained using a sin{sup 2}{psi} X-ray diffraction technique exploiting synchrotron radiation. For oxides grown on {beta}-Ni<span class="hlt">Al</span> and Ni-<span class="hlt">Al</span>-Pt samples, we found that strain relaxation rates are comparable to those observed in fine grained {alpha}-<span class="hlt">Al</span>{sub 2}O{sub 3} bulk ceramics, when bulk results are extrapolated to the lower temperatures examined here. When Hf was added to the Ni-<span class="hlt">Al</span>-Pt alloy, creep rates in the thermally grown oxide were substantially slowed. Creep rates at stress levels of 100 MPa, or less, are proportional to on, with n {le} 2, consistent with a diffusional creep mechanism.</p> <div class="credits"> <p class="dwt_author">Veal, B. W.; Paulikas, A. P.; Gleeson, B.; Hou, P. Y. (Materials Science Division); (Ames Lab.); (Iowa State Univ.); (LBNL)</p> <p class="dwt_publisher"></p> <p class="publishDate">2007-12-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">464</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/41064853"> <span id="translatedtitle">Phase equilibria in niobium rich Nb-<span class="hlt">Al</span>-Ti alloys</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Recently, niobium based alloys have attracted much attention as potential high temperature materials. Nb-<span class="hlt">Al</span> alloys have been examined, especially with a view to producing intermetallic matrix composite materials with a distribution of ductile bcc precipitates in the Nbâ<span class="hlt">Al</span> matrix. The Nbâ<span class="hlt">Al</span> phase exhibits the A15 crystal structure and is extremely brittle at temperatures below 1475 K. Attempts at alloy development</p> <div class="credits"> <p class="dwt_author">E. S. K. Menon; P. R. Subramanian; D. M. Dimiduk</p> <p class="dwt_publisher"></p> <p class="publishDate">1992-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">465</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/40087383"> <span id="translatedtitle"><span class="hlt">Al</span>-Ti-C grain refiner made by ultrasonic levitation</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">An electrostrictive uniaxial ultrasonic levitation reaction system was designed to perform TiC synthesis reaction by suspending\\u000a graphite powder in <span class="hlt">Al</span>-3Ti melt and an <span class="hlt">Al</span>-3Ti-0.15C grain refiner alloy was obtained. The results show that sound pressure\\u000a node in which graphite suspends is formed in the melt between radiation block and reflecting board by ultrasonic and Ti<span class="hlt">Al</span>3 particles congregate around C powder</p> <div class="credits"> <p class="dwt_author">Yinglong Li; Haikong Feng; Furong Cao; Yanbo Chen</p> <p class="dwt_publisher"></p> <p class="publishDate">2008-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">466</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/7037669"> <span id="translatedtitle"><span class="hlt">Al</span>-Qaeda's Operational Evolution: Behavioral and Organizational Perspectives</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary"><span class="hlt">Al</span>-Qaeda is widely regarded by the military, law enforce- ment, diplomatic, and intelligence communities as being the foremost threat to U.S. national security and safety. The nature of this threat, however, has changed since <span class="hlt">al</span>- Qaeda first emerged in the late 1980s. This article de- scribes the emergence of a new form of transnational terrorism and details <span class="hlt">al</span>-Qaeda's progression from</p> <div class="credits"> <p class="dwt_author">Randy Borum; Michael Gelles</p> <p class="dwt_publisher"></p> <p class="publishDate">2005-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">467</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/servlets/purl/1056318"> <span id="translatedtitle">Radiation Hard <span class="hlt">Al</span>GaN Detectors and Imager</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">Radiation hardness of <span class="hlt">Al</span>GaN photodiodes was tested using a 65 MeV proton beam with a total proton fluence of 3x10{sup 12} protons/cm{sup 2}. <span class="hlt">Al</span>GaN Deep UV Photodiode have extremely high radiation hardness. These new devices have mission critical applications in high energy density physics (HEDP) and space explorations. These new devices satisfy radiation hardness requirements by NIF. NSTec is developing next generation <span class="hlt">Al</span>GaN optoelectronics and imagers.</p> <div class="credits"> <p class="dwt_author">None</p> <p class="dwt_publisher"></p> <p class="publishDate">2012-05-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">468</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/biblio/5055371"> <span id="translatedtitle">Banded structures in directionally solidified Ti-52<span class="hlt">Al</span> alloys</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">The authors report their results on the structure and chemistry of ingots and directionally solidified Ti-48<span class="hlt">Al</span> and Ti-52<span class="hlt">Al</span> alloys. Through the banding behavior, quantitative analysis of parts of the high temperature phase field in near-equiatomic Ti-<span class="hlt">Al</span> alloys is obtained. A possible explanation for certain puzzling and unexplained observations by Oliver is presented. Optical microscopy, electron probe microanalysis (EPMA), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were used in this investigation.</p> <div class="credits"> <p class="dwt_author">Ramanujan, R.V. (Univ. of Birmingham (United Kingdom)); Bi, Y.; Xu, Q.; Abell, J.S. (Univ. of Birmingham (United Kingdom). School of Metallurgy and Materials)</p> <p class="dwt_publisher"></p> <p class="publishDate">1994-03-15</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">469</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/56702696"> <span id="translatedtitle">Interfacial reactions on annealing Cu\\/<span class="hlt">Al</span> multilayer thin films</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">Thin film reactions of Cu\\/<span class="hlt">Al</span> multilayer films were investigated by differential scanning calorimetry and transmission electron microscopy. Sequential intermetallic compound formation was found in the temperature range from 300 to 620 K. With excess copper present in the as-deposited trilayer and multilayer films, the observed sequence was Cu<span class="hlt">Al</span>2 and Cu9<span class="hlt">Al</span>4, and the interfacial reactions were controlled by interfacial and grain</p> <div class="credits"> <p class="dwt_author">H. G. Jiang; J. Y. Dai; H. Y. Tong; B. Z. Ding; Q. H. Song; Z. Q. Hu</p> <p class="dwt_publisher"></p> <p class="publishDate">1993-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">470</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/46499463"> <span id="translatedtitle">Transient oxidation of Single-Crystal ?-Ni<span class="hlt">Al</span></span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">The transient oxidation of ?-Ni<span class="hlt">Al</span> in air at 800 ?C and 1100 ?C has been studied using electron microscopy. The oxide scale\\u000a consists predominatly of metastable <span class="hlt">Al</span>2O3 phases. ?-<span class="hlt">Al</span>2O3 is the major oxide phase within 10.0 hr of oxidation at 800 ?C and 0.1 hr at 1100 ?C. The scales form epitaxially on (001)? and (012)? specimens throughout the transient</p> <div class="credits"> <p class="dwt_author">J. Doychak; J. L. Smialek; T. E. Mitchell</p> <p class="dwt_publisher"></p> <p class="publishDate">1989-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">471</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://academic.research.microsoft.com/Publication/40366013"> <span id="translatedtitle">Oxidation mechanisms of ?-Ni<span class="hlt">Al</span> + Zr determined by SIMS</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://academic.research.microsoft.com/">Microsoft Academic Search </a></p> <p class="result-summary">The oxidation mechanisms of single crystal Zr-doped ?-Ni<span class="hlt">Al</span> from 800 to 1200 °C were determined using primarily secondary ion mass spectrometry (SIMS) imaging and depth profiling. High spatial resolution SIMS imaging provides a means for critically assessing the effects of diffusion through the boundaries of the various morphologies of ?-<span class="hlt">Al</span>2O3 scales that form on ?-Ni<span class="hlt">Al</span>. Transient oxidation occurs by outward</p> <div class="credits"> <p class="dwt_author">R. Prescott; D. F. Mitchell; M. J. Graham; J. Doychak</p> <p class="dwt_publisher"></p> <p class="publishDate">1995-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">472</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.earth.sinica.edu.tw/~jclee/Note_Chihshang(Tichi2002)_reduce.pdf"> <span id="translatedtitle">Suppe, 1981; Ho, 1986 Tsai, 1986; Rau et <span class="hlt">al</span>.,</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">. Soc. China, v. 39, no. 3, p. 267-285. Chow, J., Angelier, J., Hua, J.J., Lee, J.C., and Sun, R., 2001 and Liou, 1989; Lee and Angelier, 1993 Barrier and Chu, 1984; Angelier et <span class="hlt">al</span>., 1997 20 50 30 #12;36 Sag a 1982 Barrier and Chu, 1984 1984 1986 Angelier et <span class="hlt">al</span>., 1997 1990 1990 1994 Lee, 1994; Angelier et <span class="hlt">al</span></p> <div class="credits"> <p class="dwt_author">Lee, Jian-Cheng</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">473</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2013JPCM...25P5703V"> <span id="translatedtitle">Stabilization mechanism of ?-Mg17<span class="hlt">Al</span>12 and ?-Mg2<span class="hlt">Al</span>3 complex metallic alloys</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">Large-unit-cell complex metallic alloys (CMAs) frequently achieve stability by lowering the kinetic energy of the electron system through formation of a pseudogap in the electronic density of states (DOS) across the Fermi energy ?F. By employing experimental techniques that are sensitive to the electronic DOS in the vicinity of ?F, we have studied the stabilization mechanism of two binary CMA phases from the <span class="hlt">Al</span>-Mg system: the ?-Mg17<span class="hlt">Al</span>12 phase with 58 atoms in the unit cell and the ?-Mg2<span class="hlt">Al</span>3 phase with 1178 atoms in the unit cell. Since the investigated alloys are free from transition metal elements, orbital hybridization effects must be small and we were able to test whether the alloys obey the Hume-Rothery stabilization mechanism, where a pseudogap in the DOS is produced by the Fermi surface-Brillouin zone interactions. The results have shown that the DOS of the ?-Mg17<span class="hlt">Al</span>12 phase exhibits a pronounced pseudogap centered almost exactly at ?F, which is compatible with the theoretical prediction that this phase is stabilized by the Hume-Rothery mechanism. The disordered cubic ?-Mg2<span class="hlt">Al</span>3 phase is most likely entropically stabilized at high temperatures, whereas at lower temperatures stability is achieved by undergoing a structural phase transition to more ordered rhombohedral ?? phase at 214?° C, where all atomic sites become fully occupied. No pseudogap in the vicinity of ?F was detected for the ?? phase on the energy scale of a few 100 meV as determined by the ‘thermal observation window’ of the Fermi-Dirac function, so that the Hume-Rothery stabilization mechanism is not confirmed for this compound. However, the existence of a much broader shallow pseudogap due to several critical reciprocal lattice vectors \\buildrel{\\rightharpoonup}\\over{G} that simultaneously satisfy the Hume-Rothery interference condition remains the most plausible stabilization mechanism of this phase. At Tc = 0.85 K, the ?? phase undergoes a superconducting transition, which slightly increases the cohesive energy and may contribute to relative stability of this phase against competing neighboring phases.</p> <div class="credits"> <p class="dwt_author">Vrtnik, S.; Jazbec, S.; Jagodi?, M.; Korelec, A.; Hosnar, L.; Jagli?i?, Z.; Jegli?, P.; Feuerbacher, M.; Mizutani, U.; Dolinšek, J.</p> <p class="dwt_publisher"></p> <p class="publishDate">2013-10-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">474</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=4148684"> <span id="translatedtitle">High breakdown voltage in <span class="hlt">Al</span>GaN/GaN HEMTs using <span class="hlt">AlGaN/GaN/Al</span>GaN quantum-well electron-blocking layers</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pmc">PubMed Central</a></p> <p class="result-summary">In this paper, we numerically study an enhancement of breakdown voltage in <span class="hlt">Al</span>GaN/GaN high-electron-mobility transistors (HEMTs) by using the <span class="hlt">AlGaN/GaN/Al</span>GaN quantum-well (QW) electron-blocking layer (EBL) structure. This concept is based on the superior confinement of two-dimensional electron gases (2-DEGs) provided by the QW EBL, resulting in a significant improvement of breakdown voltage and a remarkable suppression of spilling electrons. The electron mobility of 2-DEG is hence enhanced as well. The dependence of thickness and composition of QW EBL on the device breakdown is also evaluated and discussed. PMID:25206318</p> <div class="credits"> <p class="dwt_author"></p> <p class="dwt_publisher"></p> <p class="publishDate">2014-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">475</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=19920015311&hterms=resistance+change&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D50%26Ntt%3Dresistance%2Bchange"> <span id="translatedtitle">The cyclic oxidation resistance at 1200 C of beta-Ni<span class="hlt">Al</span>, Fe<span class="hlt">Al</span>, and Co<span class="hlt">Al</span> alloys with selected third element additions</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p class="result-summary">The intermetallic compounds Beta-Ni<span class="hlt">Al</span>, Fe<span class="hlt">Al</span>, and Co<span class="hlt">Al</span> were tested in cyclic oxidation with selected third element alloy additions. Tests in static air for 200 1-hr cycles at 1200 C indicated by specific weight change/time data and x-ray diffraction analysis that the 5 at percent alloy additions did not significantly improve the oxidation resistance over the alumina forming baseline alloys without the additions. Many of the alloy additions were actually deleterious. Ta and Nb were the only alloy additions that actually altered the nature of the oxide(s) formed and still maintained the oxidation resistance of the protective alumina scale.</p> <div class="credits"> <p class="dwt_author">Barrett, C. A.; Titran, R. H.</p> <p class="dwt_publisher"></p> <p class="publishDate">1992-01-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">476</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://ntrs.nasa.gov/search.jsp?R=19860043339&hterms=ESD&qs=Ntx%3Dmode%2Bmatchall%26Ntk%3DAll%26N%3D0%26No%3D10%26Ntt%3DESD"> <span id="translatedtitle">Anisotropic etching of <span class="hlt">Al</span> by a directed Cl2 flux</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://ntrs.nasa.gov/search.jsp">NASA Technical Reports Server (NTRS)</a></p> <p class="result-summary">A new <span class="hlt">Al</span> etching technique is described that uses an ion beam from a Kaufman ion source and a directed Cl2 flux. The ion beam is used primarily to remove the native oxide and to allow the Cl2 to spontaneously react with the <span class="hlt">Al</span> film forming volatile <span class="hlt">Al</span>2Cl6. By controlling both the flux equivalent pressure of Cl2 and the ion beam current, this etching technique makes possible the anisotropic etching of <span class="hlt">Al</span> with etch rates from 100 nm/min to nearly 10 microns/min with a high degree of selectivity.</p> <div class="credits"> <p class="dwt_author">Efremow, N. N.; Geis, M. W.; Mountain, R. W.; Lincoln, G. A.; Randall, J. N.</p> <p class="dwt_publisher"></p> <p class="publishDate">1986-01-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">477</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2013JChPh.139a4301M"> <span id="translatedtitle">Simulated photodetachment spectra of <span class="hlt">Al</span>H2-</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">We have carried out high-level ab initio calculations on <span class="hlt">Al</span>H2 and its anion, as well as Franck-Condon factor calculations, which include anharmonicity and Duschinsky rotation, to simulate the photodetachment spectrum of <span class="hlt">Al</span>H2-, with the aim of assigning the very recently reported photodetachment spectrum of <span class="hlt">Al</span>H2- [X. Zhang, H. Wang, E. Collins, A. Lim, G. Ganteför, B. Kiran, H. Schnöckel, B. Eichhorn, and K. Bowen, J. Chem. Phys. 138, 124303 (2013)], 10.1063/1.4796200. However, our simulated spectra do not support the assignment of the reported experimental spectrum to <span class="hlt">Al</span>H2-.</p> <div class="credits"> <p class="dwt_author">Mok, Daniel K. W.; Lee, Edmond P. F.; Chau, Foo-tim; Dyke, John M.</p> <p class="dwt_publisher"></p> <p class="publishDate">2013-07-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">478</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/sciencecinema/biblio/988018"> <span id="translatedtitle"><span class="hlt">al</span>-Qaida Strategy, Ideology, Doctrine, and Media</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/sciencecinema/">ScienceCinema</a></p> <p class="result-summary">Dr. Jarret Brachman, an internationally recognized <span class="hlt">al</span>-Qaida specialist, author and public lecturer, shares his thoughts on a range of topics, including the differences involved in fighting insurgent groups versus terrorist organizations, the future of the global <span class="hlt">al</span>-Qaida movement, and assessing America's efforts to combat <span class="hlt">al</span>-Qaida. In his talk, Brachman focuses specifically on current trends in <span class="hlt">al</span>-Qaida's military and messaging strategies, both from the perspective of the group's senior leadership and its regional commands. Presented on June 17, 2010.</p> <div class="credits"> <p class="dwt_author">Dr. Jarret Brachman</p> <p class="dwt_publisher"></p> <p class="publishDate">2010-09-01</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">479</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/2010ATel.2532....1C"> <span id="translatedtitle">Expanded VLA observations of Type IIn supernova SN 2010<span class="hlt">al</span></span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">We observed the Type IIN supernova SN 2010<span class="hlt">al</span> (Rich et <span class="hlt">al</span>, CBET #2207), which has shown its early spectrum similar to SN 1998S (Cooke et <span class="hlt">al</span>. ATel #2491) with the Expanded VLA (EVLA; Perley et <span class="hlt">al</span>. 2009, IEEEP, 97, 1448) in D configuration beginning at Mar 26.25 UT for a duration of 1.0 hr. The observations were carried out at a central frequency of 8.396 GHz with a total bandwidth of 256 MHz. The map rms was 17 uJy.</p> <div class="credits"> <p class="dwt_author">Chandra, Poonam; Soderberg, Alicia; Chevalier, Roger; Fransson, Claes; Chugai, Nikolai</p> <p class="dwt_publisher"></p> <p class="publishDate">2010-04-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">480</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://euro.ecom.cmu.edu/people/faculty/mshamos/7370014.pdf"> <span id="translatedtitle">c12) United States Patent Vasavada et <span class="hlt">al</span>.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">,319,336 A 3/1982 Anderson et <span class="hlt">al</span>. 4,420,751 A 12/1983 Paganini et <span class="hlt">al</span>. 4,454,414 A 6/1984 Benton 4,460,960 A 7/1984 Anderson et <span class="hlt">al</span>. 4,634,845 A 111987 Hale eta!. 111111!. ................ 705/34 4,695,880 A 9/1987 Johnson et a!. 6,052,730 A 4/2000 Felciano et <span class="hlt">al</span>. 4,727,243 A 2/1988 Savar 6</p> <div class="credits"> <p class="dwt_author">Shamos, Michael I.</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div id="filter_results_form" class="filter_results_form floatContainer" style="visibility: visible;"> <div style="width:100%" id="PaginatedNavigation" class="paginatedNavigationElement"> <a id="FirstPageLink" onclick='return showDiv("page_1");' href="#" title="First Page"> <img id="FirstPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.first.18x20.png" alt="First Page" /></a> <a id="PreviousPageLink" onclick='return showDiv("page_23");' href="#" title="Previous Page"> <img id="PreviousPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.previous.18x20.png" 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style="font-weight: bold;">25</a> </span> </span> <a id="NextPageLink" onclick='return showDiv("page_25.0");' href="#" title="Next Page"> <img id="NextPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.next.18x20.png" alt="Next Page" /></a> <a id="LastPageLink" onclick='return showDiv("page_25.0");' href="#" title="Last Page"> <img id="LastPageLinkImage" class="Icon" src="http://www.science.gov/scigov/images/icon.last.18x20.png" alt="Last Page" /></a> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">481</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/biblio/21371677"> <span id="translatedtitle">Nb<span class="hlt">Al</span> Intelligent Material Through Mechanical Alloying</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">An intelligent material of Nb-<span class="hlt">Al</span> composite, is expected to produce intermetallics phase instantaneously upon collision with hypervelocity space debris to stop the crack propagation. Intermetallics-free MA powder with Nb dispersion in <span class="hlt">Al</span> matrix is targeted. Nb-<span class="hlt">Al</span> powders are mechanically alloyed using agate media. Mechanical alloying (MA) with agate media produced fine intermetallics-free powder of Nb dispersion in <span class="hlt">Al</span> matrix. Intermetallics-free critical MA powder curve for agate media were established. The optimum critical agate MA powder of 200 rpm 132 hours had intelligent properties.</p> <div class="credits"> <p class="dwt_author">Chinniah, K.; Aikra, K. [Department of Materials Processing, Graduate School of Engineering, Tohoku University, Sendai 980-8579 (Japan)</p> <p class="dwt_publisher"></p> <p class="publishDate">2010-03-11</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">482</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.uaf.edu/chukchi/forms-and-paperwork-1/UAF-Chukchi-MSDS-Manual.pdf"> <span id="translatedtitle">Chemical Hygiene Planh UNIVERSITY OF <span class="hlt">Al</span>ASKA</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">Chemical Hygiene Planh · UNIVERSITY OF <span class="hlt">Al</span>ASKA · · FAIRBANKS INTRODUCTION.....................................................................................................3 C Chemical Hygiene Officer (CHO........................................................................................................ 8 F Reactive Chemicals</p> <div class="credits"> <p class="dwt_author">Hartman, Chris</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">483</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://adsabs.harvard.edu/abs/1993MTB....24..857L"> <span id="translatedtitle">The solidification behavior of 8090 <span class="hlt">Al</span>-Li alloy</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://adsabs.harvard.edu/abstract_service.html">NASA Astrophysics Data System (ADS)</a></p> <p class="result-summary">In this work, the solidification and segregation behaviors of 8090 <span class="hlt">Al</span>-Li alloy have been investigated with differential thermal analysis (DTA) and the metallographic-electron microprobe method. The results show that 8090 <span class="hlt">Al</span>-Li alloy has a much more complex solidification path than <span class="hlt">Al</span>-Li binary alloy due to the addition of many alloying elements and the presence of impure elements. Solidification begins at about 635 °C with the reaction of L ? ?-<span class="hlt">Al</span> + L', and this reaction goes on to termination. The alloying element Cu and impure elements Fe and Si have a strong segregation tendency. During solidification, Cu segregates to the interdendrite and finally forms ?-<span class="hlt">Al</span> + T2 eutectic. As a result, the solidification temperature range is greatly extended. Iron and Si form the insoluble constituents <span class="hlt">Al</span>7Cu2Fe, <span class="hlt">Al</span>LiSi, etc., although their concentrations in the alloy are quite low. With the increase of Fe content, there is a eutectic reaction of ?-<span class="hlt">Al/Al</span>3Fe at about 595 °C. The formation of insoluble constituents is influenced by both concentrations of impure elements in the alloy and the cooling rate.</p> <div class="credits"> <p class="dwt_author">Liu, Y. L.; Hu, Z. Q.; Zhang, Y.; Shi, C. X.</p> <p class="dwt_publisher"></p> <p class="publishDate">1993-10-01</p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">484</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/25679767"> <span id="translatedtitle">SnapShot: Genetics of <span class="hlt">ALS</span> and FTD.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">Frontotemporal dementia (FTD) and amyotrophic lateral sclerosis (<span class="hlt">ALS</span>) are considered to be part of a spectrum. Clinically, FTD patients present with dementia frequently characterized by behavioral and speech problems. <span class="hlt">ALS</span> patients exhibit alterations of voluntary movements caused by degeneration of motor neurons. Both syndromes can be present within the same family or even in the same person. The genetic findings for both diseases also support the existence of a continuum, with mutations in the same genes being found in patients with FTD, <span class="hlt">ALS</span>, or FTD/<span class="hlt">ALS</span>. PMID:25679767</p> <div class="credits"> <p class="dwt_author">Guerreiro, Rita; Brás, José; Hardy, John</p> <p class="dwt_publisher"></p> <p class="publishDate">2015-02-12</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">485</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://expertojava.ua.es/j2ee/publico/lja-2012-13/wholesite.pdf"> <span id="translatedtitle">Lenguaje Java Avanzado 1 Introduccin <span class="hlt">al</span> lenguaje Java.......................................................................................4</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/epsearch/">E-print Network</a></p> <p class="result-summary">Lenguaje Java Avanzado Índice 1 Introducción <span class="hlt">al</span> lenguaje Java.......................................................................................4 1.1 Java......................................................................................5 1.3 Componentes de un programa Java</p> <div class="credits"> <p class="dwt_author">Escolano, Francisco</p> <p class="dwt_publisher"></p> <p class="publishDate"></p> </div> </div> </div> </div> <div class="floatContainer result " lang="en"> <div class="resultNumber element">486</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.ncbi.nlm.nih.gov/pubmed/25102440"> <span id="translatedtitle"><span class="hlt">Al</span>?C monolayer: the planar tetracoordinate carbon global minimum.</span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?DB=pubmed">PubMed</a></p> <p class="result-summary">Inspired by our theoretical finding that C?<span class="hlt">Al</span>?(2-) has a planar D?h minimum with two planar tetracoordinate carbons (ptCs), we computationally designed a new two-dimensional (2D) inorganic material, an <span class="hlt">Al</span>?C monolayer. All carbons in this monolayer are ptC's, stabilized inductively by binding to four electropositive <span class="hlt">Al</span> atoms in the same plane. The <span class="hlt">Al</span>?C monolayer is semiconducting with an indirect minimum band gap and a slightly larger direct band gap. Good persistence of the <span class="hlt">Al</span>?C monolayer is indicated by its moderate cohesive energy, the absence of imaginary modes in its phonon spectrum, and the high melting point predicted by molecular dynamics (MD) simulations. Moreover, a particle-swarm optimization (PSO) global minimum search found the <span class="hlt">Al</span>?C monolayer to be the lowest-energy 2D structure compared to other <span class="hlt">Al</span>?C alternatives. Dividing the <span class="hlt">Al</span>?C monolayer results in one-dimensional (1D) <span class="hlt">Al</span>?C nanoribbons, which are computed to have quite rich characteristics such as direct or indirect band gaps with various values, depending on the direction of the division and the resulting edge configuration. PMID:25102440</p> <div class="credits"> <p class="dwt_author">Li, Yafei; Liao, Yunlong; Schleyer, Paul von Ragué; Chen, Zhongfang</p> <p class="dwt_publisher"></p> <p class="publishDate">2014-09-21</p> </div> </div> </div> </div> <div class="floatContainer result odd" lang="en"> <div class="resultNumber element">487</div> <div class="resultBody element"> <p class="result-title"><a target="resultTitleLink" href="http://science.gov/scigov/link.html?type=RESULT&redirectUrl=http://www.osti.gov/scitech/servlets/purl/10116128"> <span id="translatedtitle">Atomistic studies in grain boundaries in Ni<span class="hlt">Al</span></span></a>  </p> <div class="result-meta"> <p class="source"><a target="_blank" id="logoLink" href="http://www.osti.gov/scitech">SciTech Connect</a></p> <p class="result-summary">This paper presents the results of atomistic studies of grain boundaries in Ni<span class="hlt">Al</span> B2 alloy. The interatomic forces are described by Finnis-Sinclair type N-body potentials, and are fitted to propert