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1

Tsiganes et Voyageurs Identit, rapport au voyage, conomie,  

E-print Network

Tsiganes et Voyageurs Identité, rapport au voyage, économie, éducation et rapport à l'école dans le rapport au voyage : nomadisme et sédentarisation ............................................... 10 Le : identité, rapport au voyage, économie, éducation et rapport à l'école dans le contexte de la société

Paris-Sud XI, Université de

2

1Incidences du rapport au cadre de vie et du contexte sur la mobilit de loisir --synthseIncidences du rapport au cadre  

E-print Network

rap- port qu'ils entretiennent avec leur cadre de vie et d'autre part l'influence même de ce cadre de-27Jul2012 #12;2 - Incidences du rapport au cadre de vie et du contexte sur la mobilité de loisir L'objectif

Paris-Sud XI, Université de

3

Djambian, C. & Agostinelli S. (2013). De la mtis au e-learning : la mdiation du rapport au savoir. Distances et Mdiations des Savoirs, 2. En  

E-print Network

Djambian, C. & Agostinelli S. (2013). De la métis au e-learning : la médiation du rapport au savoir Savoirs. Volume X ­ n° 2/2013 De la métis au e-learning : la médiation du rapport au savoir Caroline abilities that are fulfilled in social networks practices. MOTS-CL?S : e-learning, formation en ligne

Paris-Sud XI, Université de

4

Rapport de Mission en Gambie Mission sur le Diassanga du 23/11 au 4/12/2000  

E-print Network

Rapport de Mission en Gambie UR RAP Mission sur le Diassanga du 23/11 au 4/12/2000 J.J. Albaret, J l'état du Diassanga. Objectifs scientifiques Le programme de recherche IRD/Gambie sur financement du

Guillard, Jean

5

The Suez Canal  

Microsoft Academic Search

I NOTICE in your number of 4th inst. an article relating to the Suez Canal (by Mr. Login, C.E., late of the Ganges Canal), and shall be glad if you will allow me to make a few observations with reference to it.

Edw. Rae

1869-01-01

6

ASTER Suez Canal  

NASA Technical Reports Server (NTRS)

One of the most important waterways in the world, the Suez Canal runs north to south across the Isthmus of Suez in northeastern Egypt. This image of the canal covers an area 36 kilometers (22 miles) wide and 60 kilometers (47 miles) long in three bands of the reflected visible and infrared wavelength region. It shows the northern part of the canal, with the Mediterranean Sea just visible in the upper right corner. The Suez Canal connects the Mediterranean Sea with the Gulf of Suez, an arm of the Red Sea. The artificial canal provides an important shortcut for ships operating between both European and American ports and ports located in southern Asia, eastern Africa, and Oceania. With a length of about 195 kilometers (121 miles) and a minimum channel width of 60 meters (197 feet), the Suez Canal is able to accommodate ships as large as 150,000 tons fully loaded. Because no locks interrupt traffic on this sea level waterway, the transit time only averages about 15 hours. ASTER acquired this scene on May 19, 2000.

Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) is one of five Earth-observing instruments launched December 18, 1999, on NASA's Terra satellite. The instrument was built by Japan's Ministry of International Trade and Industry. A joint U.S./Japan science team is responsible for validation and calibration of the instrument and the data products. Dr. Anne Kahle at NASA's Jet Propulsion Laboratory, Pasadena, California, is the U.S. science team leader; Moshe Pniel of JPL is the project manager. ASTER is the only high-resolution imaging sensor on Terra. The primary goal of the ASTER mission is to obtain high-resolution image data in 14 channels over the entire land surface, as well as black and white stereo images. With revisit time of between 4 and 16 days, ASTER will provide the capability for repeat coverage of changing areas on Earth's surface. Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) is one of five Earth-observing instruments launched December 18, 1999, on NASA's Terra satellite. The instrument was built by Japan's Ministry of International Trade and Industry. A joint U.S./Japan science team is responsible for validation and calibration of the instrument and the data products. Dr. Anne Kahle at NASA's Jet Propulsion Laboratory, Pasadena, California, is the U.S. science team leader; Moshe Pniel of JPL is the project manager. ASTER is the only high-resolution imaging sensor on Terra. The primary goal of the ASTER mission is to obtain high-resolution image data in 14 channels over the entire land surface, as well as black and white stereo images. With revisit time of between 4 and 16 days, ASTER will provide the capability for repeat coverage of changing areas on Earth's surface.

The broad spectral coverage and high spectral resolution of ASTER will provide scientists in numerous disciplines with critical information for surface mapping and monitoring dynamic conditions and temporal change. Examples of applications include monitoring glacial advances and retreats, potentially active volcanoes, thermal pollution, and coral reef degradation; identifying crop stress; determining cloud morphology and physical properties; evaluating wetlands; mapping surface temperature of soils and geology; and measuring surface heat balance.

2000-01-01

7

Suez Canal, Gulf of Suez, Sinai Peninsula, Egypt, as seen from the Apollo 7  

NASA Technical Reports Server (NTRS)

Suez Canal, Gulf of Suez, Sinai Peninsula, United Arab Republic (Egypt), Mediterranean Sea, as seen from the Apollo 7 spacecraft during its 13th revolution of the earth. Photographed from an altitude of 126 nautical miles, at ground elapsed time of 19 hours and 42 minutes.

1968-01-01

8

Gulf of Suez has excellent potential  

SciTech Connect

Egypt's re-emergence as an oil exporting country in the past several years was brought about by the drilling of fewer than 100 exploration wells in a small area of the Gulf of Suez. Now that Israel and Egypt are at peace and Egypt again controls this area, prospects for large, new discoveries in previously untested areas are excellent.

Abdine, S.

1981-07-01

9

The development of the Suez Canal  

Microsoft Academic Search

This paper provides general background information relating to the physical characteristics and operations of the Suez Canal. In connection with the future development of the Canal, the research programme currently being undertaken by a British consortium is outlined, with particular reference to the traffic system presently operating.

J. D. Griffiths

1977-01-01

10

46 CFR 69.7 - Vessels transiting the Panama and Suez Canals.  

Code of Federal Regulations, 2010 CFR

...All vessels intending to transit the Suez Canal must be measured and certificated under the Arab Republic of Egypt Suez Canal Authority Rules of Navigation, part IV. (c) Panama Canal and Suez Canal tonnage certificates are in...

2010-10-01

11

46 CFR 69.7 - Vessels transiting the Panama and Suez Canals.  

Code of Federal Regulations, 2012 CFR

...All vessels intending to transit the Suez Canal must be measured and certificated under the Arab Republic of Egypt Suez Canal Authority Rules of Navigation, part IV. (c) Panama Canal and Suez Canal tonnage certificates are in...

2012-10-01

12

46 CFR 69.7 - Vessels transiting the Panama and Suez Canals.  

Code of Federal Regulations, 2011 CFR

...All vessels intending to transit the Suez Canal must be measured and certificated under the Arab Republic of Egypt Suez Canal Authority Rules of Navigation, part IV. (c) Panama Canal and Suez Canal tonnage certificates are in...

2011-10-01

13

46 CFR 69.7 - Vessels transiting the Panama and Suez Canals.  

Code of Federal Regulations, 2013 CFR

...All vessels intending to transit the Suez Canal must be measured and certificated under the Arab Republic of Egypt Suez Canal Authority Rules of Navigation, part IV. (c) Panama Canal and Suez Canal tonnage certificates are in...

2013-10-01

14

Rapport Technique TR/CMGC/03/88  

E-print Network

Rapport Technique TR/CMGC/03/88 QUELQUES RESULTATS DES PREVISIONS COUPLEES DEMETER EFFECTUEES AU CERFACS #12;CERFACS Working Note QUELQUES RESULTATS DES PREVISIONS COUPLEES DEMETER EFFECTUEES AU CERFACS résultats ont été obtenus dans le cadre du projet européen DEMETER (Palmer et al., 2003, voir aussi http://www.ecmwf.int/research/demeter

15

Forecasting the Suez Canal traffic: a neural network analysis  

Microsoft Academic Search

Although the Suez Canal is the most important man-made waterway in the world, rivaled perhaps only by the Panama Canal, little research has been done into forecasting its traffic flows. This paper uses both univariate ARIMA (Autoregressive Integrated Moving Average) and Neural network models to forecast the maritime traffic flows in the Suez Canal which are expressed in tons. One

Mohamed M. Mostafa

2004-01-01

16

Salt Content and Water Budget of The Suez Canal  

Microsoft Academic Search

The water body in the Suez Canal is a combination of waters from differ- ent sources. Hence, its exact hydrographic structure is very difficult to define. Three main water masses are identified along the Canal on account of their salinity values: Levantine water mass I, the Suez Bay water mass II, and the Bitter Lake water mass IV, in addition

SELIM A. MORCOS; GIRGIS F. SOLIMAN

2001-01-01

17

Longitudinal evolution of Suez rift structure, Egypt  

SciTech Connect

A three-dimensional study of the structure of the Suez Rift has been carried out using field and subsurface data in an attempt to determine the role of transverse faults and the longitudinal evolution of the rift. As in most intracontinental rifts, the structure of the Gulf of Suez area is governed by normal faults and tilted blocks, whose crests constitute the main target of exploratory wells. The fault pattern consists of two major sets of trends: (1) longitudinal faults parallel with the rift axis and created in an extensional regime, trending east-northeast-west-southwest, and (2) transverse faults with north-south to north-northeast-south-southwest dominant trend. The transverse faults are inherited passive discontinuities, whereas most of the longitudinal faults were created during the Neogene in a purely extensional regime. Both sets were simultaneously active, producing a zigzag pattern and rhombic-shaped blocks. The transverse faults can show horizontal strike-slip components and act as relays between major normal faults.

Colletta, B.; Le Quellec, P.; Letouzey, J.; Moretti, I.

1988-01-01

18

East Coast -Suez Canal 15 East Coast -Strait of Hormuz 24  

E-print Network

Bases Places Crossroads East Coast - Suez Canal 15 East Coast - Strait of Hormuz 24 East Coast deployed (Avg Last 90 Days) 8 Sep 14 ~190 ships #12;Bases Places Crossroads East Coast - Suez Canal 15 East

19

DISTRIBUTION OF SIPHONOPHORES IN THE REGIONS ADJACENT TO THE SUEZ AND PANAMA CANALS  

E-print Network

observed in the Red Sea. New records at both sides of the Suez Canal which could be considered indicative in the regions adjacent to the Suez Canal may be in the adjacent oceanic regions. Thirty species of siphonophores of the regions adjacent to the Suez Canal (eastern Mediterranean and the Red Sea), as well as for the regions

20

Games of Rapport.  

ERIC Educational Resources Information Center

Board games called Games of Rapport are being developed at the University of Alberta. The first, "Angels and Devils," is designed for play by nursing home residents. Results of a study involving "Angels and Devils" show that board games are useful in communicating rehabilitative objectives and sources of conflict. (Author/BEF)

Corbin, Sandra J.

1980-01-01

21

PALEONTOLOGICAL REPORT RAPPORT DE PALONTOLOGIE  

E-print Network

PALEONTOLOGICAL REPORT RAPPORT DE PAL?ONTOLOGIE REPORT 001-RBM-2006 REPORT ON PLASTER CASTS Paleontologist, Geological Survey of Canada (Calgary). All references to age determination and paleontological

Hagadorn, Whitey

22

CONCENTRATION OF NINE HEAVY METALS IN SUEZ CANAL WATERS, EGYPT  

Microsoft Academic Search

The concentration of nine heavy metals (Cu, Zn, Cd, Pb, Ni, Cr, Co, Fe and Mn) in waters of the Suez Canal and in the nearby waters was measured seasonally during 1997 - 1998 in their dissolved (D) and particulate (P) forms. The results revealed that the northern part of the canal (at Port Said) recorded higher concentrations for most

EL SAMRA; ABD EL-AZIM

2005-01-01

23

Sea-level Variation Along the Suez Canal  

Microsoft Academic Search

The variation of sea level at 11 stations distributed along the Suez Canal was studied during the period from 1980 to 1986. The ranges of variation in daily mean sea level at Port Said and Port Tawfik are about 60 and 120cm, respectively. The minimum range of daily variation is at Kantara (47cm).The fluctuations of the monthly mean sea level

F. M. Eid; S. H. Sharaf El-Din; K. A. Alam El-Din

1997-01-01

24

The maximum shipping capacity of the Suez Canal  

Microsoft Academic Search

This paper considers the determination of the maximum shipping capacity of the Suez canal. Initially, some assumptions are made in order to calculate the theoretical maximum capacity in terms of standard ships. This last term defines ships which transit the Canal at a given speed and at a given time interval from the vessel ahead and astern. Data has been

J. D. Griffiths; Emtissal M. Hassan

1977-01-01

25

Biology of penaeid prawns in the Suez Canal lakes  

Microsoft Academic Search

A study was made from January 1988 to March 1989 of the penaid prawns in the Great Bitter Lake and Lake Timsah located in the central part of the Suez Canal. Two species of Red Sea origin were investigated,Metapenaeus stebbingi andTrachypenaeus curvirostris; the former is by far the commoner. Both species displayed seasonal breeding over the period April to October,

A. A.-F. A. Gab-Alla; R. G. Hartnoll; A.-F. Ghobashy; S. Z. Mohammed

1990-01-01

26

Gulf of Suez Fisheries: Current Status, Assessment and Management  

Microsoft Academic Search

The Gulf of Suez is the most productive fishing ground along the Egyptian sector of Red Sea, where more than 64% of Egyptian Red Sea fish production was harvested from it. The current status of the Gulf fisheries was evaluated and an assessment of the different fishing gears operated inside it was done. Fishery statistics of the different fishing gears

Sahar Fahmy Mehanna; Fahmy I. El-Gammal

2007-01-01

27

A review of potential tsunami impacts to the Suez Canal  

NASA Astrophysics Data System (ADS)

Destructive tsunamis in the eastern Mediterranean and Red seas, induced by earthquakes and/or volcanic activity, pose potential hazards to docked seaport shipping and fixed harbor infrastructure as well as to in-transit international shipping within the Suez Canal. Potential vulnerabilities of the Suez Canal to possible tsunami impacts are reviewed by reference to geological, historical, archaeoseismological, and anecdotal data. Tsunami catalogues and databases compiled by earlier researchers are perused to estimate potential return periods for tsunami events that could affect directly the Suez Canal and its closely associated operational infrastructures. Analysis of these various records indicates a centurial return period, or multiples thereof, for long-wave repetition that could generally affect the Nile Delta. It is estimated that tsunami waves 2 m high would have a breaking length about 5 km down Canal whereas a 10 m wave break would occur about 1 km into the Canal. Should a tsunami strike the eastern flanks of the Nile Delta, it would damage Egypt's maritime infrastructure and multi-national commercial vessels and military ships then using the Canal.

Finkl, C.; Pelinovsky, E.

2012-04-01

28

Racial differences: Impediments to rapport  

Microsoft Academic Search

Discusses the difficulty of achieving and maintaining rapport between white counselors and black clients. A harmonious black-black relationship may be difficult also, depending on the extent to which the counselor projects himself as \\

Clemmont E. Vontress

1971-01-01

29

Distance, Trade, and Income The 1967 to 1975 Closing of the Suez Canal as a Natural Experiment  

E-print Network

Distance, Trade, and Income ­ The 1967 to 1975 Closing of the Suez Canal as a Natural Experiment, the closing of the Suez canal in 1967 and its reopening in 1975, to examine the effect of distance on trade. On June 5, 1967, at the beginning of the Six Day War, Egypt closed the Suez canal. The canal remained

Lotko, William

30

A modelling study on hydrodynamics and pollutant dispersion in the Suez Canal  

Microsoft Academic Search

A considerable amount of international trade is transported in Egypt through the Suez Canal increasing public concern about hazardous safety. Through the canal, a relatively important flow of salt water enters the Mediterranean Sea, affecting its hydrologic deficit, and carrying algae and other non-swimmer species from the Red Sea. We are studying the hydrodynamics of the Suez Canal using both

J. M. Abril; M. M. Abdel-Aal

2000-01-01

31

Circulation and salinity distribution in the southern part of the Suez Canal  

Microsoft Academic Search

Results of 14 hydrographic sections along the southern part of the Suez Canal bctwcen Suez Bay and Great Bitter Lake from April 1964 to April 1965 arc generally in agrccmcnt with previous sections taken 10 years before ( 1954-1955). A northward current prevailed from November to July and a southward current dominated from 15 August to 15 October, pushing the

Selina A. Morcos; S. N. MESSIEH

1973-01-01

32

Sea-level Variation Along the Suez Canal  

NASA Astrophysics Data System (ADS)

The variation of sea level at 11 stations distributed along the Suez Canal was studied during the period from 1980 to 1986. The ranges of variation in daily mean sea level at Port Said and Port Tawfik are about 60 and 120 cm, respectively. The minimum range of daily variation is at Kantara (47 cm). The fluctuations of the monthly mean sea level between the two ends of the Suez Canal vary from one season to another. From July to December, the sea level at Port Said is higher than that at Port Tawfik, with the maximum difference (105 cm) in September. During the rest of the year, the mean sea level at Port Tawfik is higher than that at Port Said, with the maximum difference (315 cm) in March. The long-term variations of the annual mean sea level at both Port Said and Port Tawfik for the period from 1923 to 1986 showed a positive trend. The sea level at Port Said increased by about 278 cm century -1while it increased by only 91 cm century -1at Port Tawfik. This indicates that the difference between sea level at Port Said and Port Tawfik has decreased with time.

Eid, F. M.; Sharaf El-Din, S. H.; Alam El-Din, K. A.

1997-05-01

33

An analysis and simulation of an experimental Suez Canal traffic control system  

Microsoft Academic Search

A SLAM model of Suez Canal traffic flow is reported in this paper. An experimental traffic control scheme is proposed, tested, and discussed. A method for analysis of multi-response-variable systems is discussed and illustrated.

Thomas D. Clark Jr.; Magdi M. Kabil; Moussa I. Moussa Mostafa

1983-01-01

34

Miocene platform-margin reefs, Gulf of Suez, Egypt  

SciTech Connect

Jebel Abu Shaar is a completely dolomitized carbonate platform atop a crystalline basement horst on the western side of the Gulf of Suez. Margins of the platform, where not removed by synsedimentary faulting, are formed by well-developed coral reefs. The massive reef carbonates consistently illustrate two stages of growth: a basal paucispecific unit of branching coral bafflestone, mostly Stylophora and a thicker upper unit of diverse coral framestone, dominated by faviids. A deep-water, slope-parallel biostrome of ahermatypic corals, dominated by Dendrophyllia and containing numerous Balanophyllia and Madracis, is present 10 km north of Abu Shaar. Corals are well cemented by numerous rinds of marine cement which is overlain by geopetal internal sediment containing planktonic foraminifers and pteropods.

James, N.P.; Rosen, B.; Coniglio, M.

1988-02-01

35

Biogenic Films at the Mouth of the Suez Canal  

NASA Technical Reports Server (NTRS)

Astronauts aboard the Space Shuttle Discovery used the sunglint off the surface of the Mediterranean Sea to reveal biogenic films on the ocean surface. ('Biogenic film' refers to a thin layer of biologically-produced film resting on the surface. Click for more details.) The films dampen surface capillary waves, creating brighter and darker reflections, which, in turn, trace the complex surface water movements along the coast. The sunglint also highlights coastal features (jetties, submerged coastal areas) near the Port of Suez. Image STS105-331-18, taken in August 2001, was provided by the Earth Sciences and Image Analysis Laboratory at Johnson Space Center. Additional images taken by astronauts and cosmonauts can be viewed at the NASA-JSC Gateway to Astronaut Photography of Earth.

2002-01-01

36

Lateral variations of coda Q and attenuation of seismic waves in the Gulf of Suez, Egypt  

Microsoft Academic Search

Gulf of Suez consists mainly of three tectonic provinces that are separated by two accommodation zones. The southern edge\\u000a of the gulf is bordered by NS faults which mark the transition between the shallow water, Suez Basin and the deep northern\\u000a Red Sea Basin. The sensitivity of coda Q measurements with respect to geological differences in the crust is demonstrated

Mamdouh A. Morsy; Sherif El Hady; Salah M. Mahmoud; Enayat Abdel Moneim Awad

37

Rapport d'ATIP jeunes chercheurs Acquisition, traitement et analyse d'images LiDAR  

E-print Network

Rapport d'ATIP jeunes chercheurs LIDOR Acquisition, traitement et analyse d'images LiDAR Pour la terrain et d'acquisition des données Lidar. Daniel Charraut, chargé de recherche au CNRS UMR 6417, pour les projets Lidar appliquée à l'Archéologie en France. Le réseau ISA, plate forme technologique du

Paris-Sud XI, Université de

38

Are social performance indicators self-regulatory? The case of two water companies: Suez and Veolia  

Microsoft Academic Search

Veolia Water and Suez Environnement manage drinking water supply not only in France but also across the globe. They have developed a series of social performance indicators that have been used in their sustainable development reports since 2002. This paper examines to what extent the publication of these indicators and conventions has changed their social policy regarding notably equal opportunity

Sylvie Lupton

2010-01-01

39

Risk assessment during transport of radioactive materials through the Suez Canal  

NASA Astrophysics Data System (ADS)

In this paper a study for risk assessment of the impact of transporting radioactive materials, during the period 1986-1992, through the Suez Canal of Egypt is given. The code RADTRAN-IV was used for this study. The results of the code, for a normal case, show that the transportation of low activity materials such as uranium (U 3O 8) represent the main items that contribute significantly to the collective dose within the Suez Canal area (Port-Said, Ismailia and Suez). The values of the annual collective dose due to transportation of all radionuclide materials was found to be at a maximum in Suez town and is equal to 5.04 10 -8 Man-Sv for the whole populations. If we only consider the workder at the harbour (estimated to be 50 persons), the value of the annual collective dose is about 3.33 10 -4 Man-Sv. These values are less than the exemption value of 1 Man-Sv recommended by the IAEA. For the accident case, the following pathways are considered by the code: ground-shine, direct inhalation, inhalation of resuspended material and cloud-shine. The total values of the estimated risks for each radionuclide material are presented in table form and, in addition, health effects (genetic effects, GE, and latent cancer fatality), LCF) are discussed. The calculated values of the radiological risks are very low for the three towns, showing that no radiation-induced early deaths are to be expected.

Sabek, M. G.; El-Shinawy, R. M. K.; Gomaa, M.

1997-03-01

40

Marine Radioactivity Studies in the Suez Canal, Part I: Hydrodynamics and Transit Times  

Microsoft Academic Search

This paper describes work carried out under the IAEA Project EGY\\/07\\/002 to study the dispersion of radioactive material in the Suez Canal. This effort is linked with the increased public concern about radiation safety through this important trade route. To follow the fate of radioactive wastes along this waterway, we had to solve the hydrodynamics of the water, governed mainly

J. M. Abril; M. M. Abdel-Aal

2000-01-01

41

Physicochemical conditions for plankton in Lake Timsah, a saline lake on the Suez Canal  

Microsoft Academic Search

Lake Timsah receives high salinity water from the Suez Canal, mainly from the south, and freshwater from a Nile canal and other sources, producing a salinity stratification with surface salinities of 20 400\\/00 and over 400\\/00 in deeper water. Water temperature at a depth of 50 70 cm fell to below 20 C in winter and rose to above 30

H. A. H. El-Serehy; M. A. Sleigh

1992-01-01

42

Relationships Between Sediment Morphology and Oil Pollution Along the Suez Canal Beaches, Egypt  

Microsoft Academic Search

In this study, marine surface sediments are collected from nine locations along the Suez Canal in order to investigate the relationship between the morphology of sands in the studied beaches and pollution by oil. Basically, the studied samples were analyzed by three techniques: grain-size analysis, microscopic examination, and gas chromatographic (GC) analysis. This study concluded that medium sand is the

MOHAMED A. K. BARAKAT; THOURAYA M. SHIMY; YASSAR M. MOSTAFA

1996-01-01

43

The Suez Canal as a habitat and pathway for marine algae and seagrasses  

NASA Astrophysics Data System (ADS)

The Suez Canal supports a diversified benthic algal flora; 133 species of benthic algae are now known from the Canal, as compared with only 24 in 1924. The vertical and horizontal distribution of algae is considered in relation to hydrographic factors. The algae display zonation and 3-4 algal belts are distinguished on the Canal banks on buoys and pier supports. Associated fauna include Balanus amphitrite and Brachidontes variabilis, together with various hydroids, sponges, ascidians, asteroids, ophiuroids and crustaceans. Merceriella enigmatica thrives well in brackish water habitats. The algal flora in the Bitter Lakes resembles that in the Red Sea. The number of Red Sea species decreases from Suez to Port Said in the littoral zone. On the other hand, bottom algae predominantly belong to Red Sea flora. Thirty of the species of algae found belong to the Indo-Pacific flora; half of these are new records to the Canal. Several of these Indo-Pacific algae have recently become established in the Eastern Mediterranean, whereas only two of the Mediterranean macro-algal flora (viz. Caulerpa prolifera and Halopteris scoparia) have been found in the Gulf of Suez. Two seagrasses, Halopia ovalis and Thalassia hemprichii, are recorded for the first time in the Canal. Only Halophila stipulacea has found its way into the Mediterranean via the Suez Canal, but none of the Mediterranean seagrasses is found either in the Canal or in the Red Sea.

Aleem, A. A.

44

Marine radioactivity studies in the Suez Canal. A modelling study on radionuclide dispersion  

Microsoft Academic Search

This paper describes work carried out under the IAEA Project EGY\\/07\\/002 to study the dispersion of radioactive material in the Suez Canal and the Bitter Lakes. This effort is linked with increased public concern about radiation safety through this important trade route. We apply a sequence of related modelling approaches, covering: (1) hydrodynamics, (2) transport of dissolved pollutants, (3) suspended

J. M Abril; M. M Abdel-Aal

2000-01-01

45

New Records of Polychaetes from the South Part of Suez Canal, Egypt  

Microsoft Academic Search

Faunistic analysis of benthic samples were obtained during a trip to the south part of Suez Canal, Egypt, during April, 2007, which revealed the presence of 82 polychaete species, 18 of them are considered as new records for the Egyptian waters. In order to achieve this study fouling components and sediments samples were collected by Van Veen grab (0.5 to

Faiza A. Abd-Elnaby

46

The Northern Sea Route versus the Suez Canal: cases from bulk shipping  

Microsoft Academic Search

The navigation distance via the Northern Sea Route (NSR) from a Northwest-European port to the Far East is approximately 40% shorter compared to the route via the Suez Canal. The shorter distance may facilitate more than a doubling of vessels operational energy efficiency performance. There is at present substantial uncertainty in schedule reliability via the NSR. Unless the schedule reliability

Halvor Schyen; Svein Brthen

2011-01-01

47

IMMIGRATION OF FISHES THROUGH THE SUEZ CANAL! ADAM BENTuVIA2  

E-print Network

IMMIGRATION OF FISHES THROUGH THE SUEZ CANAL! ADAM BEN·TuVIA2 ABSTRACT The number of Red Sea fishes found in the eastern Mediterranean amounts to 36 species. Twelve immigrants, namely: Spratelloides Carcharhinus plumbeus can be regarded as Mediterranean immigrants. In studying the immigration offishes through

48

Mise au point sur les caractristiques gntiques et les mthodes d'levage du canard de Barbarie  

E-print Network

Barbarie appartiennent à l'espèce Cairina moschata L. Par rapport au canard commun Anas platyrhynchos L derniers auteurs, les différences morphologiques entre chromosomes analogues des genres Cairina et Anas

Paris-Sud XI, Université de

49

Determination and partitioning of metals in sediments along the Suez Canal by sequential extraction  

NASA Astrophysics Data System (ADS)

The application of sequential extraction technique was used to determine the chemical association of heavy metals in five different chemical phases (exchangeable F1, bound to carbonate F2, bound to Fe-Mn oxides F3, bound to organic matter F4 and residual F5) for sediment samples collected from the Suez Canal. From the obtained data, it can be seen that the surplus of metal contaminants introduced into the sediment from sources usually exists in relatively unstable chemical forms. A high proportion of the studied metals remained in the residual fraction. Most of remaining portion of metals was bound to ferromanganese oxides fraction. The low concentrations of metals in the exchangeable fraction indicated that the sediments of Suez Canal were relatively unpolluted.

Abd El-Azim, H.; El-Moselhy, Kh. M.

2005-06-01

50

Risk assessment during transport of radioactive materials through the Suez Canal  

Microsoft Academic Search

In this paper a study for risk assessment of the impact of transporting radioactive materials, during the period 19861992, through the Suez Canal of Egypt is given. The code RADTRAN-IV was used for this study. The results of the code, for a normal case, show that the transportation of low activity materials such as uranium (U3O8) represent the main items

M. G. Sabek; R. M. K. El-Shinawy; M. Gomaa

1997-01-01

51

Determination and partitioning of metals in sediments along the Suez Canal by sequential extraction  

Microsoft Academic Search

The application of sequential extraction technique was used to determine the chemical association of heavy metals in five different chemical phases (exchangeable F1, bound to carbonate F2, bound to FeMn oxides F3, bound to organic matter F4 and residual F5) for sediment samples collected from the Suez Canal. From the obtained data, it can be seen that the surplus of

H. Abd El-Azim; Kh. M. El-Moselhy

2005-01-01

52

Natural and artificial radionuclides in the Suez Canal bottom sediments and stream water  

Microsoft Academic Search

Concentration of natural and artificial radionuclides in Suez Canal bottom sediments and stream water have been measured using gamma spectrometers based on a hyper-pure Ge detector. The activity concentrations of 238U series, 232Th series and 40K did not exceed 16.0, 15.5 and 500.0 Bq kg-1 dry weight for sediments. The activity concentration of 238U series and 40K did not exceed

M. S. El-Tahawy; M. A. Farouk; N. M. Ibrahiem; S. A. M. El-Mongey

1994-01-01

53

Boundary layer structure observed by shipborne Doppler Sodar in the Suez canal zone  

Microsoft Academic Search

SummaryObservations of the boundary layer with a monostatic Sodar and other instrumentation were carried out in the Suez canal zone\\u000a in January and March 1979, from the Italian m.v.Salernum on its way to and from a GARP assignment. The Sodar was operated almost continuously throughout the passages. In addition\\u000a to the intensity records, an off-line Doppler analysis involving the use

G. Fiocco; G. Mastrantonio; A. Ricotta

1980-01-01

54

Geothermal studies in oilfield districts of Eastern Margin of the Gulf of Suez, Egypt  

NASA Astrophysics Data System (ADS)

Results of geothermal studies carried out at 149 onshore oil wells have been used in evaluation of temperature gradient and heat flow values of the eastern shore of the Gulf of Suez. The investigations included temperature logs in boreholes, calculation of amplitude temperature, geothermal gradients and heat flow. The results obtained indicate that geothermal gradient values are in the ranges of 0.02-0.044 C/m and regionally averaged mean heat flow values are found to fall in the interval of 45-120 mW/m2. Temperature gradients and heat flow values change from low values eastward to high values toward the axial of Gulf of Suez rift. The result of this research work has been highly successful in identifying new geothermal resources eastward of the Gulf of Suez. Additionally, this study shows that the areas with relatively higher temperature gradients have lower oil window, mature earlier, than those with low gradient values. Thus, high temperature gradients cause to expedite the formation of oil at relatively shallow depths and narrow oil windows. On the other hand, low temperature gradient makes the oil window to be quite broad when locate at high depths.

Abdel Zaher, Mohamed; El Nuby, Mohamed; Ghamry, Essam; Mansour, Khamis; Saadi, Nureddin M.; Atef, Heba

2014-06-01

55

Fonds de dotation Rapport annuel  

E-print Network

'Université, suite à une recommandation du Comité. Elle vise à préserver la valeur des dons et à minimiser la (fonds indiciel, coté en bourse, d'actions de pays émergents) et Hexavest (fonds d'actions mondiales). Ce Au cours de l'exercice financier se terminant le 30 avril 2013, la valeur marchande du portefeuille

Charette, André

56

Rapport d'information Horizon 2020  

E-print Network

Rapport d'information n o 1009 Horizon 2020 : l'Europepourla recherche, l'Europeparla recherche-cadre, expressément axé sur l'innovation en plus de la recherche, est rebaptisé «Horizon2020» afin de souligner son communautaires; la mise en synergie des moyens de recherchenationaux. Horizon2020 s

Pouyanne, Nicolas

57

Genre et rapport au risque : de la comprhension au levier pour l'action Genre et rapport au risque : de la comprhension au levier pour l'action  

E-print Network

in a psychosocial developmental approach, pointing out the effects of gender stereotype compliance on relation stereotypes. Keywords: gender ­ risk ­ rules ­ compliance ­ stereotypes ­ internalization hal-00849108,version. This paper takes stock of knowledge that enables to understand the effect of gender on road crashes

Paris-Sud XI, Université de

58

Les transferts d'tablissements contribuent au desserrement urbain  

Microsoft Academic Search

[fre] Les transferts d'tablissements contribuent au desserrement urbain . L'analyse des transferts d'tablissements concourt expliquer les prfrences de localisation des entreprises, leurs relations avec le territoire et les dynamiques spatiales qui en rsultent. Les mouvements dont il est question dans cet article se rapportent des tablissements ayant chang de commune entre 1989 et 1992. Ils sont au nombre

Jean-Pierre Delisle; Frdric Laine

1998-01-01

59

THE JELLYFISH AURELIA AURITA (CNIDARIA: SCYPHOMEDUSAE): ITS LIFE HISTORY STRATEGY, MIGRATION ACTIVITY AND ITS IMPACT ON THE ZOOPLANKTON COMMUNITY OF SUEZ CANAL, EGYPT  

Microsoft Academic Search

Suez Canal is the main connecting link between the Red Sea in the south and the Mediterranean in the north. It crosses different lakes on its route from Port Said on the Mediterranean Sea to Port Suez on the Red Sea. Jellyfishes form a major part of the macro- plankton of the canal. The role of jellyfishes in general and

HAMED A. EL-SEREHY

60

Pattern of Blood Stream Infections within Neonatal Intensive Care Unit, Suez Canal University Hospital, Ismailia, Egypt  

PubMed Central

Introduction. Blood stream infection (BSI) is a common problem of newborn in neonatal intensive care units (NICUs). Monitoring neonatal infections is increasingly regarded as an important contributor to safe and high-quality healthcare. It results in high mortality rate and serious complications. So, our aim was to determine the incidence and the pattern of BSIs in the NICU of Suez Canal University Hospital, Egypt, and to determine its impact on hospitalization, mortality, and morbidity. Methods. This study was a prospective one in which all neonates admitted to the NICUs in Suez Canal University hospital between January, 2013 and June 2013 were enrolled. Blood stream infections were monitored prospectively. The health care associated infection rate, mortality rate, causative organism, and risk factors were studied. Results. A total of 317 neonates were admitted to the NICU with a mortality rate of 36.0%. During this study period, 115/317 (36.3%) developed clinical signs of sepsis and were confirmed as BSIs by blood culture in only 90 neonates with 97 isolates. The total mean length of stay was significantly longer among infected than noninfected neonates (34.5 18.3 and 10.8 9.9 days, resp., P value < 0.001). The overall mortality rates among infected and noninfected neonates were 38.9% and 34.8%, respectively, with a significant difference. Klebsiella spp. were the most common pathogen (27.8%) followed by Pseudomonas (21.6%) and Staphylococcus aureus (15.4%). Conclusion. The rate of BSIs in NICU at Suez Canal University Hospital was relatively high with high mortality rate (36.0%).

Kishk, Rania Mohammed; Mandour, Mohamed Fouad; Farghaly, Rasha Mohamed; Ibrahim, Ahmed; Nemr, Nader Attia

2014-01-01

61

Examining the positive effects of rapport building: When and why does rapport building benefit adult eyewitness memory?  

PubMed

Most investigative interviewing protocols recommend building rapport with cooperative adult witnesses to increase the accuracy of their reports. Although a few recent studies support the benefits of rapport building on adult witness recall, no study has examined whether the timing of rapport in relation to post-event misinformation affects recall accuracy, and whether these effects are related to witness anxiety levels throughout the interview. The present study provided two hundred and thirty-three undergraduates with a videotaped mock crime followed by building high or low rapport either before or after they received post-event misinformation. All witnesses were then interviewed about the mock crime. Results indicated that high rapport before misinformation increased the amount of accurate information reported in a subsequent witness interview compared to low rapport. However, these recall benefits were not due to a reduction in anxiety. Theoretical implications and practical recommendations for police interviewing practices are discussed. PMID:24304449

Kieckhaefer, Jenna Mitchell; Vallano, Jonathan Patrick; Schreiber Compo, Nadja

2014-11-01

62

Feasibility of Using VLS-PV Systems in the Future Egyptian Cities: Case Study Suez Canal Region  

E-print Network

project?s firs government t industry, simi USA, China, In this conte infrastructure locations to s into built env governorate activities are expansion of been establish employments SUEZ CANA CASE STU The objective PV cells to fu 20-50 year... project?s firs government t industry, simi USA, China, In this conte infrastructure locations to s into built env governorate activities are expansion of been establish employments SUEZ CANA CASE STU The objective PV cells to fu 20-50 year...

El Sudany, M. M.; Rashed, A.; Sheta, S.

2010-01-01

63

Natural and artificial radionuclides in the Suez Canal bottom sediments and stream water  

NASA Astrophysics Data System (ADS)

Concentration of natural and artificial radionuclides in Suez Canal bottom sediments and stream water have been measured using ? spectrometers based on a hyper-pure Ge detector. The activity concentrations of 238U series, 232Th series and 40K did not exceed 16.0, 15.5 and 500.0 Bq kg-1 dry weight for sediments. The activity concentration of 238U series and 40K did not exceed 0.6 and 18.0 Bq 1-1 for stream water.

El-Tahawy, M. S.; Farouk, M. A.; Ibrahiem, N. M.; El-Mongey, S. A. M.

1994-07-01

64

Internet addiction's effect on likeability and rapport  

Microsoft Academic Search

The Internet Paradox refers to findings that demonstrated that the increase in communications brought about by Internet usage actually had negative effects on users psychological well-being and social involvement. This study proposes that face-to-face contact promotes the development of rapport and thereby individuals that use the internet excessively will lack these necessary social skills. Specifically, we investigate whether, through use

Anthony Iacovelli; Stavros Valenti

2009-01-01

65

L'atteinte v?sicale au cours de la neurofibromatose de Von Recklinghausen  

PubMed Central

La neurofibromatose de type 1 ou maladie de Von Recklinghausen est une maladie gntique autosomique dominante en rapport avec des mutations dans le gne suppresseur de tumeur NF1. L'atteinte uro-gnitale au cours de cette maladie est rare et moins de 80 cas ont t rapports ce jour dans la littrature mondiale. Les auteurs rapportent un nouveau cas d'atteinte vsicale dcouverte fortuitement au cours du suivi d'une patiente atteinte de la maladie de Von Recklinghausen. A travers cette observation et une revue de la littrature les auteurs discutent galement les difficults diagnostiques, thrapeutiques ainsi que les modalits de suivi dans cette maladie. PMID:25328590

Benazzouz, Mohamed Hicham; Hajjad, Tilila; Essatara, Younes; El Sayegh, Hachem; Iken, Ali; Benslimane, Lounis; Nouini, Yassine

2014-01-01

66

Scale deposition in surface and subsurface production equipment in the Gulf of Suez  

SciTech Connect

Some of the Gulf of Suez oil fields (El-Morgan, July, and Shoab Ali) have been waterflooded with gulf seawater. Compatibility tests have indicated probable deposition of scale in surface and subsurface production equipment. This paper outlines the physical and theoretical prediction for downhole scale deposition in Gulf of Suez oil wells. It also describes field experience with CaSO/sub 4/ scale removal from the wells and their formations in view of field results of the implemented programs. Scale inhibition programs carried out to control downhole scale deposition by using the formation squeeze technique, along with the field results obtained from the squeezetreated wells, are described. A new improvement in the squeeze treatment technique has been introduced as highmolecular-weight polyacrylamide polymer solutions were incorporated to stage the scale inhibitor squeeze batch to prolong the treatment lifetime. Field results are presented, along with conclusions and recommendations that can be applied to similar problems, especially when wells of highly productive sandstone formations are to be inhibited.

El-Hattab, M.I.

1985-09-01

67

Relationship between sediment morphology and oil pollution along the Suez Canal beaches, Egypt  

SciTech Connect

In this study, marine surface sediments are collected from nine locations along the Suez Canal in order to investigate the relationship between the morphology of sands in the studied beaches and pollution by oil. Basically, the studied samples were analyzed by three techniques: grains-size analysis, microscopic examination, and gas chromatographic (GC) analysis. This study concluded that medium sand is the major class represented in the studied marine sediments. Pollution in these sand grains increases in the irregular grains more so than in the more rounded grains. Also, deep surface points, pitting, and fissures are considered to be good sites to precipitate oil contamination. Also, the presence of iron oxides may be taken as evidence for tanker ballast washings. The heavy fraction (zircon) shows more contamination than the light fraction (quartz) in these samples. Finally, GC profiles have shown two types of samples: one typical of weathered or highly weathered crude oil patterns and the other for samples with very highly weathered profiles. The relationship obtained between morphology studies and both oil content and GC chromatogram profiles indicates that all of the studied locations are suffering from pollution of oil that is spilled while shipping petroleum through the Suez Canal.

Barakat, M.A.K.; Shimy, T.M.; Mostafa, Y.M. [Egyptian Petroleum Research Inst., Cairo (Egypt)

1996-10-01

68

Marine Radioactivity Studies in the Suez Canal, Part I: Hydrodynamics and Transit Times  

NASA Astrophysics Data System (ADS)

This paper describes work carried out under the IAEA Project EGY/07/002 to study the dispersion of radioactive material in the Suez Canal. This effort is linked with the increased public concern about radiation safety through this important trade route. To follow the fate of radioactive wastes along this waterway, we had to solve the hydrodynamics of the water, governed mainly by tides, atmospheric forcing and the drift currents produced by horizontal salinity gradients and by differences in mean sea level (MSL) at the two entrances of the Canal. The hydrodynamics has been studied using both 1-D and 2-D modelling approaches, and a reasonable calibration has been possible from the data set prepared with the collaboration of the Suez Canal Authority. Dispersion of conservative pollutants has been preliminarily studied by using a 1-D-Gaussian approach. Thus, we are computing the path of the plumes and the time evolution of concentrations for different scenarios of discharges and under different seasonal conditions. The transit times can vary enormously during the year, ranging from a few days to several months, depending on the differences in MSL at the two entrances of the Canal.

Abril, J. M.; Abdel-Aal, M. M.

2000-04-01

69

The rhythm of rapport: Interpersonal synchrony and social perception  

Microsoft Academic Search

The temporal coordination of behavior during dyadic interactions is a foundation for effective social exchange with synchronized actions enhancing perceptions of rapport and interpersonal connectedness. What has yet to be established, however, are the precise characteristics of behavioral coordination that give rise to such effects. Informed by a dynamical systems approach, the current investigation considered whether judgments of rapport are

Lynden K. Miles; Louise K. Nind; C. Neil Macrae

2009-01-01

70

Rapport in Negotiation: The Contribution of the Verbal Channel  

ERIC Educational Resources Information Center

This study examined the contribution of verbal behavior to the creation of rapport in negotiation, while methodologically addressing the issue of dependence between dyadic measures, which is inherent to the concept of rapport, with the Actor-Partner Interdependence model. The approach adopted is substantially different from that of past research,

Bronstein, Ilan; Nelson, Noa; Livnat, Zohar; Ben-Ari, Rachel

2012-01-01

71

Marine Radioactivity Studies in the Suez Canal, Part II: Field Experiments and a Modelling Study of Dispersion  

Microsoft Academic Search

In this paper we take advantage of the two field tracing experiments carried out under the IAEA project EGY\\/07\\/002, to develop a modelling study on the dispersion of radioactive pollution in the Suez Canal. The experiments were accomplished by using rhodamine B as a tracer, and water samples were measured by luminescence spectrometry. The presence of natural luminescent particles in

J. M. Abril; M. M. Abdel-Aal; S. A. Al-Gamal; F. A. Abdel-Hay; H. M. Zahar

2000-01-01

72

Genetic differentiation among populations of Minona ileanae (Platyhelminthes: Proseriata) from the Red Sea and the Suez Canal  

Microsoft Academic Search

The phenomenon of Lessepsian migration has stimulated the interest of biologists ever since the opening of the Suez Canal in 1869, concerning, in particular, the possible effects of migrants on Mediterranean autochthonous communities. So far, most attention has been devoted to macrofaunal taxa yet, the nature of the sandy shores of the Canal may constitute an ideal habitat for

Tiziana Lai; Marco Curini-Galletti; Marco Casu

2008-01-01

73

Maturation, fecundity and seasonality of reproduction of two commercially valuable cuttlefish, Sepia pharaonis and S. dollfusi, in the Suez Canal  

Microsoft Academic Search

The cuttlefish Sepia pharaonis (maximum 250mm mantle length, ML) and S. dollfusi (maximum 150mm ML) are widely distributed in the Indo-Pacific from the Red Sea to Japan and Australia. They are the primary fishery in the Suez Canal and the most valuable commercial cephalopods in the northern Indian Ocean. However, their reproductive biology, essential for fishery management, is poorly known.

Howaida R Gabr; Roger T Hanlon; Mahmoud H Hanafy; Salah G El-Etreby

1998-01-01

74

Distance, Trade, and Income The 1967 to 1975 Closing of the Suez Canal as a Natural Experiment  

Microsoft Academic Search

The negative effect of distance on bilateral trade is one of the most robust findings in international trade. However, the underlying causes of this negative relationship are less well understood. This paper exploits a temporary shock to distance, the closing of the Suez canal in 1967 and its reopening in 1975, to examine the effect of distance on trade and

James Feyrer

2009-01-01

75

Why is the mediterranean more readily colonized than the Red Sea, by organisms using the Suez Canal as a passageway?  

Microsoft Academic Search

Since the opening of the Suez Canal, more than 120 Red Sea species colonized the eastern Mediterranean, whereas less than 10 Mediterranean species colonized the Red Sea. For most of the species involved in this colonization, the mode of dispersal from the source to the colonized area is through free-drifting propagules. In order to examine whether the current regime of

Z. Agur; U. N. Safriel

1981-01-01

76

DISTRIBUTION AND ORIGIN OF DIATOMS IN THE BOTTOM SEDIMENTS OF THE SUEZ CANAL LAKES AND ADJACENT AREAS, EGYPT  

Microsoft Academic Search

The diatom assemblages in the bottom sediments of Timsah Lake and adjacent sites, including the Great Bitter Lake, the northern part of the Gulf of Suez and the Mediterranean Sea at the entrance of the northern canal, have been recovered and studied in detail. A total of 394 species and varieties belonging to 96 genera were identified. Of these, 263

Abdelfattah A. Zalat

2002-01-01

77

Inventing space in the age of Empire: planning experiments and achievements along Suez Canal in Egypt (18591956)  

Microsoft Academic Search

This paper presents a new French research project concerning the planning and architectural history of the Suez canal cities in Egypt during the age of Empire. Begun in January 2008, this research has been addressing two first topics: religious architecture and port cities as cosmopolitan locales.

Cline Frmaux; Mercedes Volait

2009-01-01

78

Reproductive Periodicities of Indo-Pacific Invertebrates in the Gulf of Suez. I. The Echinoids Prionocidaris Baculosa (Lamarck) and Lovenia Elongata (Gray).  

National Technical Information Service (NTIS)

Cellular changes in the gonads of the echinoids, Prionocidaris baculosa (Cidaroidea) and Lovenia elongata (Spatangoidea), in the Gulf of Suez are followed over a year. Gametogenesis leading to spawning begins in synchrony among individuals of P. baculosa ...

J. S. Pearse

1969-01-01

79

Risk factors of falls among elderly living in Urban Suez - Egypt  

PubMed Central

Introduction Falling is one of the most common geriatric syndromes threatening the independence of older persons. Falls result from a complex and interactive mix of biological or medical, behavioral and environmental factors, many of which are preventable. Studying these diverse risk factors would aid early detection and management of them at the primary care level. Methods This is a cross sectional study about risk factors of falls was conducted to 340 elders in Urban Suez. Those are all patients over 60 who attended two family practice centers in Urban Suez. Results When asked about falling during the past 12 months, 205 elders recalled at least one incident of falling. Of them, 36% had their falls outdoors and 24% mentioned that stairs was the most prevalent site for indoor falls. Falls were also reported more among dependant than independent elderly. Using univariate regression analysis, almost all tested risk factors were significantly associated with falls in the studied population. These risk factors include: living alone, having chronic diseases, using medications, having a physical deficit, being in active, and having a high nutritional risk. However, the multivariate regression analysis proved that the strongest risk factors are low level of physical activity with OR 0.6 and P value 0.03, using a cane or walker (OR 1.69 and P value 0.001) and Impairment of daily living activities (OR 1.7 and P value 0.001). Conclusion Although falls is a serious problem among elderly with many consequences, it has many preventable risk factors. Health care providers should advice people to remain active and more research is needed in such an important area of Family Practice. PMID:23504298

Kamel, Mohammed Hany; Abdulmajeed, Abdulmajeed Ahmed; Ismail, Sally El-Sayed

2013-01-01

80

Non-native fishes in the Mediterranean from the Red Sea, by way of the Suez Canal  

Microsoft Academic Search

The opening of the Suez Canal in 1869 caused a migration generally from the Red Sea to the Mediterranean, rarely the opposite\\u000a direction, and 63 lessepsian fish species penetrated into the Mediterranean by way of this canal. These species usually spread\\u000a northward and most of them can establish wide populations in this area, but some of them can not be

Sinan Mavruk; Dursun Avsar

2008-01-01

81

An ecological examination of rapport using a dyadic puzzle task.  

PubMed

Previous studies have indicated that situational context impacts the rapport experience (e.g., F. J. Bernieri, J. S. Gillis, J. M. Davis, & J. E. Grahe, 1996; N. M. Puccinelli, L. Tickle-Degnen, & R. Rosenthal, 2003). The authors designed the present study to further document the behavioral and experiential predictors of dyadic rapport and to evaluate dyadic rapport experiences when contributions were required from both interactants. Participants (N = 60) were paired into dyads and instructed to complete children's puzzles. However, the dyadic members were restricted in how they could accomplish this task: Only one interactant was allowed to work on the puzzle and had to do so blindfolded, while the second interactant gave instructions. Results suggested that less attribution of responsibility to the worker and the instructor's experience of enjoyment and frustration were indicative of higher rapport. Other characteristics of dyads reporting higher dyadic rapport included difficulty completing the task and more communicative behavior. The results provide important information for the understanding of the dyadic experience of rapport. PMID:18225829

Grahe, Jon E; Sherman, Ryne A

2007-10-01

82

Controls on erosional retreat of the uplifted rift flanks at the Gulf of Suez and northern Red Sea  

NASA Technical Reports Server (NTRS)

The Gulf of Suez and the Red Sea rigts are currently bordered by large asymmetric uplifts that are undergoing erosion. We find that the amount and timing of erosion vary systematically along the strike of the margin and have been controlled by variations in the perift stratigraphy. The perfit strata are compsoed of cliff-forming Eocene-Cretaceous carbonates overlaying the easily eroded Cretaceous-Cambrian 'Nubian' sandstone. This lithologic succession promotes scarp retreat of the sedimentary section, follwed by dissection of the underlying basement. The perift section thins from over 2000 m at the northern end of the rift to less htan 400 m at its junction with the Red Sea. Thus, at the northern part of the Gulf of Suez, the Nubian sandstone is minimally exposed, and the carbonates form a scarp at the rift border fault. Farther south, undercuttin of hte carbonates by erosion of the sandstion has resulted in scarp retreat. The escarpment cuts diagonally away from the border fault andis over 100 km inland from the border fault at the southernmost Gulf of Suez. The amount of retreat varies inversely with the sediment thickness. Exposure and erosion of basement are initiated by the retreate of the escarpment, and the depth of erosion, as indicated by fission track ages, increases with distance from the escarpment. These observations are explained by a model in which erosion along the Gulf of Suez is initiated as rift flank uplift becomes sufficiently large ot expose the friable sandstones. Undercutting the escarpment and exhumation of basement has been propagating northward and westward for at least 20 m.y. The average rate of scarp retreat has been 6 km/m.y. and the along-strike propagation of the erosion has been 12 km/m.y. The diachronous erosion of the rift flanks at the Gulf of Suez highlights the importance of distinguishing between the timing of uplift and of erosion. Both thermochronometric and stratigraphic data primarily indicate the timing of erosion, which may differ significantly form the timing of the uplift that initiates it. They must be interpreted carefully to avoid erroneous conclusions about rift tectonics.

Steckler, Michael S.; Omar, Gomaa I.

1994-01-01

83

Timing of structural development of oil traps in Gulf of Suez, Egypt  

SciTech Connect

To date, more than 40 oil fields with an estimated 25billion bbl of oil in place have been discovered in the Gulf of Suez, Egypt. These oil accumulations are present both in the pre-graben and graben-fill cycles which are separated by Oligocene tectonic phase, hitherto considered to be responsible for differentiation and formation of oil traps. In the present study, the structural development of many oil traps is related to intra-Rudeis tectonic phase of late early Miocene age. Presence of an a

Chowdhary, L.R.; Shaheen, S.

1988-01-01

84

Physico-chemical conditions for plankton in Lake Timsah, a saline lake on the Suez Canal  

NASA Astrophysics Data System (ADS)

Lake Timsah receives high salinity water from the Suez Canal, mainly from the south, and freshwater from a Nile canal and other sources, producing a salinity stratification with surface salinities of 20-40 and over 40 in deeper water. Water temperature at a depth of 50-70 cm fell to below 20 C in winter and rose to above 30 C in summer; oxygen concentration at the same depth ranged between 6-10 mg l -1 and the pH was 81-83, and at mid-day this water was supersaturated with oxygen through 6-8 months of the year. The main chemical nutrients reached their highest levels in winter (December-February) and their lowest levels in summer (May-August), silicate varying between 1-7 ? M, phosphate between 01 and 08 ? M and nitrate between 4-10 ? M; nitrite varied in a more complex manner, usually between 025 and 04 ? M. The atomic ratio of N/P was generally well above the Redfield ratio level, except for a few months in midwinter. These nutrient concentrations are high in comparison with those of unpolluted seas of the region, but are typical of the more eutrophic coastal waters in most parts of the world.

El-Serehy, H. A. H.; Sleigh, M. A.

1992-02-01

85

De cette petitesse de l'effet Zeeman par rapport la largeur des raies, on peut d'ailleurs facilement dduir,e que les rotations que l'on  

E-print Network

387 De cette petitesse de l'effet Zeeman par rapport à la largeur des raies, on peut d rétablisse- ment de lumière observé est considérablement diminué. . En résumé : ~i° Si le phénomène de Zeeman cet effet Zeeman ; 4° Comme pour un même sens du champ magnétique, les rotations , au voisinage des

Boyer, Edmond

86

GC estimation of organic hydrocarbons that threaten shallow Quaternary sandy aquifer Northwestern Gulf of Suez, Egypt.  

PubMed

Soil and groundwater contamination is one of the important environmental problems at petroleum-related sites, which causes critical environmental and health defects. Severe petroleum hydrocarbon contamination from coastal refinery plant was detected in a shallow Quaternary sandy aquifer is bordered by Gulf in the Northwestern Gulf of Suez, Egypt. The overall objective of this investigation is to estimate the organic hydrocarbons in shallow sandy aquifers, released from continuous major point-source of pollution over a long period of time (91years ago). This oil refinery contamination resulted mainly in the improper disposal of hydrocarbons and produced water releases caused by equipment failures, vandalism, and accidents that caused direct groundwater pollution or discharge into the gulf. In order to determine the fate of hydrocarbons, detailed field investigations were made to provide intensive deep profile information. Eight composite randomly sediment samples from a test plot were selected for demonstration. The tested plot was 50m long??50m wide??70cm deep. Sediment samples were collected using an American auger around the point 29 57' 33? N and 32 30' 40? E in 2012 and covered an area of 2,500m(2) which represents nearly 1/15 of total plant area (the total area of the plant is approximately 3.250km(2)). The detected total petroleum hydrocarbons (TPHs) were 2.44, 2.62, 4.54, 4.78, 2.83, 3.22, 2.56, and 3.13wt%, respectively. TPH was calculated by differences in weight and subjected to gas chromatography (GC). Hydrocarbons were analyzed on Hewlett-Packard (HP-7890 plus) gas chromatograph equipped with a flame ionization detector (FID). The percentage of paraffine of the investigated TPH samples was 7.33, 7.24, 7.58, 8.25, 10.25, 9.89, 14.77, and 17.53wt%, respectively. PMID:25052330

Zawrah, M F; Ebiad, M A; Rashad, A M; El-Sayed, E; Snousy, Moustafa Gamal; Tantawy, M A

2014-11-01

87

Marine molluscs as biomonitors for heavy metal levels in the Gulf of Suez, Red Sea  

NASA Astrophysics Data System (ADS)

Levels of the heavy metals Copper (Cu), Zinc (Zn), Lead (Pb), Cadmium (Cd), Chromium (Cr), Nickel (Ni), Iron (Fe) and Manganese (Mn) were determined in coastal water, sediments and soft tissues of the gastropod limpet, Patella caerulea, and the bivalve, Barbatus barbatus, from seven different stations in the western coast of the Gulf of Suez. The concentrations of heavy metals in water ranged between 3.37-4.78, 18.83-21.46, 2.75-3.17, 0.22-0.27, 0.99-1.21, 2.69-3.65, 3.75-4.56 ?g L - 1 and 23.82-32.78 mg g - 1 for Cu, Zn, Pb, Cd, Cr, Ni, Mn and Fe, respectively. The corresponding concentration values in the sediments were 8.65-12.16, 51.78-58.06, 36.52-42.15, 3.23-3.98, 9.03-12.75, 34.31-49.63, 3.28-4.56 and 64.20-70.22 ?g g - 1 for Cu, Zn, Pb, Cd, Cr, Ni, Mn and Fe, respectively. The highest accumulated metals were Fe, Zn and Mn in both P. caerulea and B. barbatus, while the lowest one was Cd. The accumulation of metals was more pronounced in P. caerulea than B. barbatus. The highest concentrations of all metals in water, sediments and mollusca were recorded at Adabiya harbour north of the Gulf, while the lowest concentrations were recorded at Gabal El-Zeit and Hurghada. Land based activities and ships awaiting berth are the main source of metal pollution in the northern part of the Gulf.

Hamed, Mohamed A.; Emara, Ahmed M.

2006-05-01

88

'Beringuella... ella' : le plaisir des formes au service de l'criture dramatique de Lucas Fernndez  

E-print Network

1 « 'Beringuella... ella' : le plaisir des formes au service de l'écriture dramatique de Lucas Lucas Fernández est justifié non seulement parce que ce théâtre vieux de presque 500 ans est écrit en par rapport au texte poétique en général. Et même si l'on considère qu'au temps de Lucas Fernández la

Paris-Sud XI, Université de

89

RIAMI : GGTM et Laboratoires francais Rapport d'activites  

E-print Network

RIAMI : GGTM et Laboratoires fran¸cais Rapport d'activit´es par Aziz El Kacimi Coordinateur du GGTM Maghreb) a ´et´e fond´e `a l'initiative de quelques g´eom`etres et topologues Maghr´ebins et Fran¸cais le

El Kacimi, Aziz

90

Ecological Study on Community of Exotic Invasive Seaweed Caulerpa prolifera in Suez Canal and its Associated Macro Invertebrates  

NASA Astrophysics Data System (ADS)

Caulerpa prolifera (Forsskal) Lamouroux, a green alga, widespread in tropical and subtropical seas is now invading species to the Suez Canal during last recent years after 2000; it is widely spread, colonizing its western sandy shore at shallow waters of 1-2 m depth. It has the potential to supplant native vegetation, thereby altering the structure and function of the subtidal marine landscape, supplant seagrass H. stipulacea. According to the present study, based on biometric parameters, the frequency of occurrence, abundance and density analyses, the seaweed C. prolifera is more frequent, abundant and dense in Suez Canal than the seagrass H. stipulacea, which is very rare. Instead C. prolifera forming extended dense meadows with percentage cover nearly 100% m-2 at many sites. This mainly happened; due to the competitive success of C. prolifera which seems to be related to its big size, high density, rapid growth, high efficiency in dim light conditions, high tolerance to severe nutrient limitation and salinity and temperature fluctuations and to the production of toxic secondary metabolites. The presence of these toxic secondary metabolites explains why C. prolifera is avoided by many of macro invertebrates as a habitat or feeding grounds.

Gab-Alla, Ali A.-F. A.

91

Assessment of PAHs in water and fish tissues from Great Bitter and El Temsah lakes, Suez Canal, as chemical markers of pollution sources  

Microsoft Academic Search

Sea water and fish tissue samples were collected from nine sampling stations from the Great Bitter and El Temsah lakes in the Suez Canal and analysed for polycyclic aromatic hydrocarbon (PAH). The compositions of PAH determined in the dissolved fraction of sea water were measured in order to use them as chemical markers for identifying different sources of PAH pollution

Tarek O. Said; Nadia A. El Agroudy

2006-01-01

92

JOURNAL DE PHYSIQUE Colloque C7, suppliment au no 12, Tome 37, De'cembre 1976,page C7-495 ON THE AUTO-ANNIHILATION OF RADIATION  

E-print Network

defect concentration is calculated versus the number of Frenkel pairs. The pairs are induced at random la concentration de defauts primaires est calculee par rapport au nombre de paires de Frenkel formees-495 ON THE AUTO-ANNIHILATION OF RADIATION INDUCED FRENKEL PAIRS IN LiF (*) A. VAN DEN BOSCH Materials Science

Boyer, Edmond

93

Mmoire sur le projet du Comit des Finances, relatif la suppression de la place de Botaniste attach au Cabinet d'Histoire naturelle  

E-print Network

attaché au Cabinet d'Histoire naturelle Lamarck Dans le Projet imprimé d'un rapport que le Comité des originale du document : p.1 Page 1 - Site Lamarck / www.lamarck.net - Pietro Corsi / © 2011 #12;Mémoire sur Cabinet d'Histoire naturelle Lamarck La place de Botaniste attaché au Cabinet d'Histoire Naturelle est d

Aubin, David

94

Student Views of Instructor-Student Rapport in the College Classroom  

ERIC Educational Resources Information Center

Building upon past research on the positive learning outcomes associated with rapport building in the classroom, this study examines the specific behaviors instructors utilize in college classrooms to build rapport with undergraduate students. Participants (N = 230) answered open-ended survey questions about their instructors'

Webb, Nathan G.; Barrett, Laura Obrycki

2014-01-01

95

Distribution of polychlorinated dibenzo-p-dioxins, polychlorinated dibenzofurans, dioxin-like polychlorinated biphenyl and polycyclic aromatic hydrocarbons in the sediment of Temsah lake, Suez Canal, Egypt  

Microsoft Academic Search

Lake Temsah is one of the main wetlands in the Suez Canal region, and the main source for fish for the area. The lake is the end-point of several wastewater effluents. In the present study, residues of polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs), dioxin-like polychlorinated biphenyl (PCB) and polycyclic aromatic hydrocarbons (PAH) were monitored in the sediment of the

Pietro Tundo; Stefano Raccanelli; Laila A. Reda; Mohamed Tawic Ahmed

2004-01-01

96

Reproductive strategy of the jellyfish Aurelia aurita (Cnidaria Scyphomedusae) in the Suez Canal and its migration between the Red Sea and Mediterranean  

Microsoft Academic Search

The life history of the common jellyfish A. aurita (Linnaeus) in the Suez Canal was investigated by monthly sampling over a 28 month period from September 2006 to December 2008. Young medusae of 23 cm diameter appeared during February\\/March. Growth was rapid. Some specimens of this cohort reached 16 cm and spawned by March\\/May and then decreased in size or

Hamed A. El-Serehy; Khaled A. Al-Rasheid

2011-01-01

97

Marine integrons containing novel integrase genes, attachment sites, attI, and associated gene cassettes in polluted sediments from Suez and Tokyo Bays  

PubMed Central

In order to understand the structure and biological significance of integrons and associated gene cassettes in marine polluted sediments, metagenomic DNAs were extracted from sites at Suez and Tokyo Bays. PCR amplicons containing new integrase genes, intI, linked with novel gene cassettes, were recovered and had sizes from 1.8 to 2.5?kb. This approach uncovered, for the first time, the structure and diversity of both marine integron attachment site, attI, and the first gene cassette, the most efficiently expressed integron-associated gene cassette. The recovered 13 and 20 intI phylotypes, from Suez and Tokyo Bay samples, respectively, showed a highly divergence, suggesting a difference in integron composition between the sampling sites. Some intI phylotypes showed similarity with that from Geobacter metallireducens, belonging to Deltaproteobacteria, the dominant class in both sampling sites, as determined by 16S rRNA gene analysis. Thirty distinct families of putative attI site, as determined by the presence of an attI-like simple site, were recovered. A total of 146 and 68 gene cassettes represented Suez and Tokyo Bay unsaturated cassette pools, respectively. Gene cassettes, including a first cassette, from both sampling sites encoded two novel families of glyoxalase/bleomycin antibiotic-resistance protein. Gene cassettes from Suez Bay encoded proteins similar to haloacid dehalogenases, protein disulfide isomerases and death-on-curing and plasmid maintenance system killer proteins. First gene cassettes from Tokyo Bay encoded a xenobiotic-degrading protein, cardiolipin synthetase, esterase and WD40-like ? propeller protein. Many of the first gene cassettes encoded proteins with no ascribable function but some of them were duplicated and possessed signal functional sites, suggesting efficient adaptive functions to their bacterial sources. Thus, each sampling site had a specific profile of integrons and cassette types consistent with the hypothesis that the environment shapes the genome. PMID:21248857

Elsaied, Hosam; Stokes, Hatch W; Kitamura, Keiko; Kurusu, Yasurou; Kamagata, Yoichi; Maruyama, Akihiko

2011-01-01

98

Modulation of stress related protein genes in the bass (Epinephelus guaza) caught from the Gulf of Suez, the Red Sea, Egypt.  

PubMed

Impact of chemical pollution on expression of stress protein genes in the bass Epinephelus guaga collected from several locations including Suez Oil Production Port (Floating port), Atakah Fishing Port, Adabiya Port and Tawfik Port in Suez Governorate, Egypt, was investigated. In the current study, levels of polycyclic aromatic hydrocarbons (PAHs) in water and fish samples collected from Suez Gulf were assessed. In addition, gills and liver tissues of caught bass fish were used to address the interaction between pollution status and the expression of stress-related genes (Hsp70a, Hsp70b, Hsp47, MT and CYP1A). Our analysis demonstrated that levels of PAHs in Floating and Tawfik ports were higher than those found in the Atakah Fishing Port and the Adabiya Port. In addition, MDA and PC contents were significantly higher in gills and liver tissues collected from Floating and Tawfik ports than those collected from Adabiya and Atakah ports. In correlation to the above results, all fish collected from the Floating and Tawfik ports presented a significant increase in Hsp-, MT- and CYP1A-mRNAs. On the other hand, fish samples collected from the Atakah Fishing and Adabiya ports showed no induction of the stress-related genes transcription in such tissues. In conclusion, the current research demonstrates that remarkable increase in PAH contaminants levels in Floating and Tawfik ports are correlated with the levels stress protein-related genes transcription in E. guaga gills and liver tissues. PMID:23849466

Abdel-Gawad, Fagr Kh; Khalil, Wagdy K B

2013-10-01

99

Rapport au savoir et (d)mobilisation scolaire chez des collgiens de troisime  

Microsoft Academic Search

This study analyses the criteria of the school withdrawal\\/attendance (operational spectrum of the approach to learning) for high school freshmen students. This withdrawal\\/attendance is linked to the relationship between actual family experience and the perceived school experience. Three hundred and forty-three high school freshmen students answered a survey featuring 67items, divided into four groups: school curriculum, guidance and projects, approach

Y Prteur; S Constans; H Fchant

2004-01-01

100

Entre Reproduction et Mobilisation: les Rapports de Genre EN Formation Continue EN France et AU Canada  

NASA Astrophysics Data System (ADS)

REPRODUCTION OR MOBILISATION? GENDER PROPORTIONS IN CONTINUING EDUCATION IN FRANCE AND CANADA - Initial education provisions for women have evolved greatly over the past 40 years. But what about their situation within adult education and training? This article, comparing Canada and France, shows that, while it is well known that more women than men participate in adult education, their greater presence in professional training courses is a new development. The analysis highlights certain particular findings, such as the growing demand for continuing education in Canada and the increased rate of participation by full-time employees in France. In both countries, a number of social factors continue to influence women's participation.

Fourner, Christine; Bret, Pierre; Doray, Pierre; Blanger, Paul

2009-01-01

101

Rapport de Mission Du 28/12/2010 au 01/02/2011 (R2)  

E-print Network

:...............................................................................3 II. Thématique scientifique :................................................................5 III dépanner la bouée GPS, Le programme de cette mission n'aurait pu se faire sans l'aide et le soutien de

102

French Space Program. Report to Cospar Programme Spatial Francais. Rapport au Cospar.  

National Technical Information Service (NTIS)

A report is presented on French space activities over the period mid-1975 to mid-1976. These activities cover the following main fields: extrasolar system astronomy, solar physics, solar system, lunar rocks, ionospheric and magnetospheric physics, aeronom...

1976-01-01

103

Rapport de mission Eparses du 2 au 15 avril 2011 bord du Marion Dufresne  

E-print Network

relevage de la sonde RBR posée il y a 2 ans. En fonction des possibilités techniques (disponibilité effectuées en parallèle. La période d'interrogation du marégraphe bascule ensuite automatiquement à

104

Marine Radioactivity Studies in the Suez Canal, Part II: Field Experiments and a Modelling Study of Dispersion  

NASA Astrophysics Data System (ADS)

In this paper we take advantage of the two field tracing experiments carried out under the IAEA project EGY/07/002, to develop a modelling study on the dispersion of radioactive pollution in the Suez Canal. The experiments were accomplished by using rhodamine B as a tracer, and water samples were measured by luminescence spectrometry. The presence of natural luminescent particles in the canal waters limited the use of some field data. During experiments, water levels, velocities, wind and other physical parameters were recorded to supply appropriate information for the modelling work. From this data set, the hydrodynamics of the studied area has been reasonably described. We apply a 1-D-Gaussian and 2-D modelling approaches to predict the position and the spatial shape of the plume. The use of different formulations for dispersion coefficients is studied. These dispersion coefficients are then applied in a 2-D-hydrodynamic and dispersion model for the Bitter Lake to investigate different scenarios of accidental discharges.

Abril, J. M.; Abdel-Aal, M. M.; Al-Gamal, S. A.; Abdel-Hay, F. A.; Zahar, H. M.

2000-04-01

105

Hormone de croissance placentaire. Signification par rapport aux hormones de croissance et  

E-print Network

Hormone de croissance placentaire. Signification par rapport aux hormones de croissance et. Placentalgrowth hormone. Significance relative to pituitary growth hormo- nes and placental lactogen hormone growth hormone (PGH). This entity, agonist of pituitary GH, appears responsible for the elevated IGFI

Boyer, Edmond

106

Skogen smre koldioxidflla n vntat I underlaget fr Sveriges rapportering till  

E-print Network

Skogen sämre koldioxidfälla än väntat I underlaget för Sveriges rapportering till till att skogen totalt sett fångar mindre växthus- gaser. I årets rapportering blev den totala mängden- den räkna in skogssänkan i rapporteringen till Kyotoprotokollet. Det innebär att Sverige kan balansera

107

Student?parent rapport and parent involvement in sex, birth control, and venereal disease education  

Microsoft Academic Search

Despite widespread support for more effective sex education by parents, frank discussion of sex between parent and child is generally acknowledged to be a rarity. This study asked 1819?year?olds who they felt should be responsible for instructing young people about sex, examined relationships between student?parent rapport and parental involvement in sex education, and evaluated the impact of rapport and discussion

Susan M. Bennett; Winifred B. Dickinson

1980-01-01

108

MISE AU POINT Titre : Intoxication au mercure.  

E-print Network

MISE AU POINT Titre : Intoxication au mercure. L. Bensefa-Colas1 , P. Andujar2-4 , A. Descatha5 INSERM U687, Villejuif, F-94415, France Titre court : intoxication au mercure Auteur correspondant,version1-24Aug2011 #12;Résumé (238 mots) Le mercure est un métal lourd largement répandu dans le monde et

Paris-Sud XI, Université de

109

Eliciting maltreated and nonmaltreated children's transgression disclosures: narrative practice rapport building and a putative confession.  

PubMed

This study tested the effects of narrative practice rapport building (asking open-ended questions about a neutral event) and a putative confession (telling the child an adult "told me everything that happened and he wants you to tell the truth") on 4- to 9-year-old maltreated and nonmaltreated children's reports of an interaction with a stranger who asked them to keep toy breakage a secret (n=264). Only one third of children who received no interview manipulations disclosed breakage; in response to a putative confession, one half disclosed. Narrative practice rapport building did not affect the likelihood of disclosure. Maltreated children and nonmaltreated children responded similarly to the manipulations. Neither narrative practice rapport building nor a putative confession increased false reports. PMID:24467688

Lyon, Thomas D; Wandrey, Lindsay; Ahern, Elizabeth; Licht, Robyn; Sim, Megan P Y; Quas, Jodi A

2014-01-01

110

Assessment of genetic diversity and relationships among Egyptian mango (Mangifera indica L.) cultivers grown in Suez Canal and Sinai region using RAPD markers.  

PubMed

DNA-based RAPD (Random Amplification of Polymorphic DNA) markers have been used extensively to study genetic diversity and relationships in a number of fruit crops. In this study, 10 (7 commercial mango cultivars and 3 accessions) mango genotypes traditionally grown in Suez Canal and Sinai region of Egypt, were selected to assess genetic diversity and relatedness. Total genomic DNA was extracted and subjected to RAPD analysis using 30 arbitrary 10-mer primers. Of these, eleven primers were selected which gave 92 clear and bright fragments. A total of 72 polymorphic RAPD bands were detected out of 92 bands, generating 78% polymorphisms. The mean PIC values scores for all loci were of 0.85. This reflects a high level of discriminatory power of a marker and most of these primers produced unique band pattern for each cultivar. A dendrogram based on Nei's Genetic distance co-efficient implied a moderate degree of genetic diversity among the cultivars used for experimentation, with some differences. The hybrid which had derived from cultivar as female parent was placed together. In the cluster, the cultivars and accessions formed separate groups according to bearing habit and type of embryo and the members in each group were very closely linked. Cluster analysis clearly showed two main groups, the first consisting of indigenous to the Delta of Egypt cultivars and the second consisting of indigenous to the Suez Canal and Sinai region. From the analysis of results, it appears the majority of mango cultivars originated from a local mango genepool and were domesticated later. The results indicated the potential of RAPD markers for the identification and management of mango germplasm for breeding purposes. PMID:24783778

Mansour, Hassan; Mekki, Laila E; Hussein, Mohammed A

2014-01-01

111

Ultra-relativistic Au+Au and d+Au collisions:  

NASA Astrophysics Data System (ADS)

In this talk I will review PHOBOS data on charged particle multiplicities, obtained in Au+Au and d+Au collisions at RHIC. The general features of the Au+Au pseudorapidity distributions results will be discussed and compared to those of /line{p}p collisions. The total charged particle multiplicity, scaled by the number of participant pairs, is observed to be about 40% higher in Au+Au collisions than in /line{p}p and d+Au systems, but, surprisingly at the same level of e+e- collisions. Limiting fragmentation scaling is seen to be obeyed in Au+Au collisions.

Back, B. B.; Baker, M. D.; Ballintijn, M.; Barton, D. S.; Betts, R. R.; Bickley, A. A.; Bindel, R.; Budzanowski, A.; Busza, W.; Carroll, A.; Chai, Z.; Decowski, M. P.; Garca, E.; Gburek, T.; George, N.; Gulbrandsen, K.; Gushue, S.; Halliwell, C.; Hamblen, J.; Hauer, M.; Heintzelman, G. A.; Henderson, C.; Hofman, D. J.; Hollis, R. S.; Ho?y?ski, R.; Holzman, B.; Iordanova, A.; Johnson, E.; Kane, J. L.; Katzy, J.; Khan, N.; Kucewicz, W.; Kulinich, P.; Kuo, C. M.; Lin, W. T.; Manly, S.; McLeod, D.; Mignerey, A. C.; Nouicer, R.; Olszewski, A.; Pak, R.; Park, I. C.; Pernegger, H.; Reed, C.; Remsberg, L. P.; Reuter, M.; Roland, C.; Roland, G.; Rosenberg, L.; Sagerer, J.; Sarin, P.; Sawicki, P.; Seals, H.; Sedykh, I.; Skulski, W.; Smith, C. E.; Stankiewicz, M. A.; Steinberg, P.; Stephans, G. S. F.; Sukhanov, A.; Tang, J.-L.; Tonjes, M. B.; Trzupek, A.; Vale, C.; van Nieuwenhuizen, G. J.; Vaurynovich, S. S.; Verdier, R.; Veres, G. I.; Wenger, E.; Wolfs, F. L. H.; Wosiek, B.; Wo?niak, K.; Wuosmaa, A. H.; Wys?ouch, B.

112

Rapport pour la Dlgation la Prospective et la Stratgie  

E-print Network

MATIERE DE SECURITE PUBLIQUE DANS LES FORCES DE SECURITE INTERIEURE 2 L'intelligence-led policing aux POLICING AUX ETATS- UNIS : LE TOURNANT DU 11 SEPTEMBRE 2001 6 1.1 L'essor de l'intelligence-led policing décennies d'évolution au bilan mitigé 8 2 LES STANDARDS AMERICAINS EN MATIERE D'INTELLIGENCE-LED POLICING

Boyer, Edmond

113

Preservice Music Teachers' and Therapists' Nonverbal Behaviors and Their Relationship to Perceived Rapport  

ERIC Educational Resources Information Center

The purpose of the two studies reported in the article was to determine whether or not a relationship exists between preservice music therapists' and teachers' nonverbal behaviors and their perceived rapport. In study 1, evaluators (N = 56) viewed a stimulus tape consisting of 15 45-second segments of 15 preservice music therapists leading songs

Darrow, Alice-Ann; Johnson, Christopher

2009-01-01

114

Managing Rapport in Lingua Franca Sales Negotiations: A Comparison of Professional and Aspiring Negotiators  

ERIC Educational Resources Information Center

This article presents selective findings from a study that investigated how facework is used to achieve interpersonal goals in intercultural sales negotiations. The article reports on linguistic analyses of what Spencer-Oatey has termed ''rapport management'' which, in a negotiation context, is aimed primarily, but not exclusively, at building a

Planken, B.

2005-01-01

115

Ris har udgivet en rapport om moderne bioenergi. Den slr fast, at  

E-print Network

Risø har udgivet en rapport om moderne bioenergi. Den slår fast, at biomasse er en ligeså værdifuld teknologi, der skal til for at udnytte hele dens potentiale. RIS?NYT N O 42003 MODERNE BIOENERGI HAR STORE MULIGHEDER Moderne bioenergi har store muligheder Af Hans Larsen, Jens Kossmann og Leif Sønderberg Petersen

116

Rapport INRETS-LTE 1010 Combined effect of Aircraft Noise and  

E-print Network

Rapport INRETS-LTE 1010 Combined effect of Aircraft Noise and Pollutant Emissions Researcher, HDR Noise and Air Pollution of Air Transport Airports and Environment Jermanto KURNIAWAN, Ph.D. Student Noise and Air Pollution of Air Transport hal-00543553,version1-6Dec2010 #12;hal-00543553,version1

Paris-Sud XI, Université de

117

Rapport de recherche RR-2004-019 A new data driven approach for 3D curve  

E-print Network

for subdivision rules of the Active B-Spline Curve developed by Pottmann et al. Their method, startingRapport de recherche RR-2004-019 « A new data driven approach for 3D curve subdivision inversion » Lavoué Guillaume, Dupont Florent, Baskurt Atilla, Mai 2004 #12;A new data driven approach for 3D curve

Dupont, Florent

118

? decay of Au176  

NASA Astrophysics Data System (ADS)

The isotope Au176 has been studied in the complete fusion reaction Ca40+Pr141 ? 176Au+5n at the velocity filter SHIP (GSI, Darmstadt). The complex fine-structure ? decay of two isomeric states in Au176 feeding several previously unknown excited states in the daughter nucleus Ir172 is presented. An ?-decay branching ratio of b?=9.5(11)% was deduced for the high-spin isomer in Ir172.

Andreyev, A. N.; Antalic, S.; Ackermann, D.; Cocolios, T. E.; Elseviers, J.; Franchoo, S.; Heinz, S.; Heberger, F. P.; Hofmann, S.; Huyse, M.; Khuyagbaatar, J.; Kindler, B.; Lommel, B.; Mann, R.; Page, R. D.; Van Duppen, P.; Venhart, M.

2014-10-01

119

Two new Myxidium species (Myxosporea: Myxidiidae) infecting the gallbladder of African flying fish, Cheilopogon nigricans and Suez fusilier, Caesio suevicus from the Red Sea, Egypt: a morphological and morphometric study  

Microsoft Academic Search

Myxidium maamouni sp. n. and Myxidium aydai sp. n. were described from the gallbladder of the African flying fish Cheilopogon nigricans and Suez fusilier Caesio suevicus, respectively. Fishes were collected from the Red Sea at Al-Quseir, Egypt. M. maamouni have irregular to mostly rounded polysporous plasmodia with diameter of 27m. Spores were sigmoid or S-shaped and sometimes\\u000a spindle-shaped in the

Abdel-Azeem Sh. Abdel-Baki

2009-01-01

120

Rapport in Conflict Resolution: Accounting for How Face-to-Face Contact Fosters Mutual Cooperation in Mixed-Motive Conflicts  

Microsoft Academic Search

We propose that face-to-face contact fosters the development of rapport and thereby helps negotiators coordinate on mutually beneficial settlements in mixed-motive conflicts. Specifically, we investigate whether, in a cooperative climate, negotiators' visual access to each other's nonverbal behavior fosters a dyadic state of rapport that facilitates mutual cooperation. Experiment 1 manipulated whether negotiators stood face-to-face or side-by-side (unable to see

Aimee L. Drolet; Michael W. Morris

2000-01-01

121

P?ritonites infectieuses en dialyse p?riton?ale continue ambulatoire au CHU de Rabat: profil bact?riologique sur trois ans  

PubMed Central

Introduction La pritonite infectieuse (PI) est une des complications les plus svres et les plus frquentes de la dialyse pritonale (DP). But: Dterminer le taux des PI et les germes en causes, et valuer lefficacit des protocoles thrapeutiques entrepris chez les patients traits par DP au CHU de Rabat. Mthodes Etude rtrospective effectue en Septembre 2009 chez tous les patients traits par DP continue ambulatoire (DPCA) au CHU de Rabat depuis louverture de lunit de DP en Juillet 2006. Ont t inclus dans cette tude, tous les patients ayant fait une pritonite. Pour tous nos patients, nous avons relev les donnes cliniques, biologiques et bactriologiques. Nous avons galement recherch les causes des pritonites, le dlai de survenue par rapport au dbut de la dialyse, et la dure moyenne de formation des patients. Rsultats Au cours de la priode de ltude, 28 pisodes de PI sont survenus chez 19 patients dont la moyenne dge est de 4616 (19-78) ans, avec une prdominance masculine (12 hommes/ 7 femmes). Le taux des PI dans notre unit de DP est de 21.07 mois-patients calcul par le RDPLF. Leur dlai de survenue par rapport au dbut de la dialyse au centre est de 7.9 8 (1-29) mois. Lors de ces PI, les bactries Gram ngatif (BGN) ont t retrouves dans 55% des cas, contre uniquement 45% pour les Gram positifs. Conclusion La PI est une complication grave et redoutable de la DP. Le taux de PI dans notre centre de DPCA est de 21m-p ce qui correspond au taux acceptable dfinie par les socits internationales. Les germes les plus responsables des PI dans notre centre sont les BGN et la contamination semble tre manu-porte se faisant essentiellement partir de la flore environnementale et cutane. PMID:22593777

Lioussfi, Zineb; Rhou, Hakima; Ezzaitouni, Fatima; Ouzeddoun, Naima; Bayahia, Rabea; Benamar, Loubna

2012-01-01

122

L'exprience partage d'un rapport au pass, l'exemple de Oignies, une commune minire  

E-print Network

restreint ? Dans le cadre d'une enquête sur la mémoire urbaine à Oignies (Pas-de- Calais), quinze habitants ? During an eighteen month study on urban memory in Oignies (Pas-de-Calais in the North of France), from way, to the past. Mots-Clés : Oignies, Pas-de-Calais, bassin minier, mémoire collective, mémoire

Paris-Sud XI, Université de

123

Culture-Mdias & Numrique Chapitre Culture-medias & numrique , in rapport de ARP-ANR,  

E-print Network

1 « Culture-Médias & Numérique » Chapitre « Culture-medias & numérique », in rapport de ARP://digital3prise.net/ Ghislaine Chartron, CNAM, DICEN et GIS Culture & Medias numériques François Moreau, CNAM, LIRSA et GIS Culture & Medias numériques Cette thématique, animée par Ghislaine Chartron et François

Paris-Sud XI, Université de

124

Ris har udgivet en rapport om moderne bioenergi. Den slr fast, at biomasse er en  

E-print Network

Risø har udgivet en rapport om moderne bioenergi. Den slår fast, at biomasse er en ligeså værdifuld skal til for at udnytte hele dens potentiale. Der er ikke noget nyt i at bruge biomasse til energi. Opfyring med brænde og opvarmning med halmfyr eller biogas er kendte teknologier. Men 'moderne bio- energi

125

Au2HTML  

NSDL National Science Digital Library

Au2HTML is a tool aimed at Webmasters and others who are interested in developing Webpage galleries. Its most useful feature allows the creation of thumbnails from images of varying file formats. Customizable thumbnail options include image size and the border style. Au2HTML also comes with an HTML editor and can be integrated with your FTP client to ease file transfers. The registration fee is $99. A demo version is available for no charge.

126

@AuAg nanostructures  

NASA Astrophysics Data System (ADS)

Bimetallic and trimetallic nanoparticles have attracted significant attention in recent times due to their enhanced electrochemical and catalytic properties compared to monometallic nanoparticles. The numerical calculations using Mie theory has been carried out for three-layered metal nanoshell dielectric-metal-metal (DMM) system consisting of a particle with a dielectric core (Al@Al2O3), a middle metal Ag (Au) layer and an outer metal Au (Ag) shell. The results have been interpreted using plasmon hybridization theory. We have also prepared Al@Al2O3@Ag@Au and Al@Al2O3@AgAu triple-layered core-shell or alloy nanostructure by two-step laser ablation method and compared with calculated results. The synthesis involves temporal separations of Al, Ag, and Au deposition for step-by-step formation of triple-layered core-shell structure. To form Al@Ag nanoparticles, we ablated silver for 40 min in aluminium nanoparticle colloidal solution. As aluminium oxidizes easily in water to form alumina, the resulting structure is core-shell Al@Al2O3. The Al@Al2O3 particle acts as a seed for the incoming energetic silver particles for multilayered Al@Al2O3@Ag nanoparticles is formed. The silver target was then replaced by gold target and ablation was carried out for different ablation time using different laser energy for generation of Al@Al2O3@Ag@Au core-shell or Al@Al2O3@AgAu alloy. The formation of core-shell and alloy nanostructure was confirmed by UV-visible spectroscopy. The absorption spectra show shift in plasmon resonance peak of silver to gold in the range 400-520 nm with increasing ablation time suggesting formation of Ag-Au alloy in the presence of alumina particles in the solution.

Singh, Rina; Soni, R. K.

2014-09-01

127

Caloric curve in Au+Au collisions  

SciTech Connect

Realistic caloric curves are obtained for the {sup 197}Au+{sup 197}Au reaction with incident energy ranging from 35 to 130 MeV/nucleon in the dynamic statistical multifragmentation model. It is shown that for the excitation energy 3 to 8 MeV/nucleon, the temperature remains constant in the range 5 to 6 MeV, which is close to the experiment. The mechanism of energy deposition through the tripartition of the colliding system envisaged in this model together with interfragment nuclear interaction are found to play important roles. A possible signature of a liquid-gas phase transition is seen in the specific heat distribution calculated from these caloric curves, and the critical temperature is found to be {approximately}6 to 6.5 MeV. {copyright} {ital 1998} {ital The American Physical Society}

Das, C.B.; Satpathy, L. [Institute of Physics, Bhubaneswar-751 005 (India)] [Institute of Physics, Bhubaneswar-751 005 (India)

1998-01-01

128

swinburne.edu.au Social Sciences  

E-print Network

knowledge of respiratory diseases and also gained a good rapport with patients and fellow staff members in an international location. Destinations may include India, Malaysia, Nepal and Vietnam. Visit www

Liley, David

129

Au adatom-linked CH3S-Au-SCH3 complexes on Au(111)  

SciTech Connect

A novel chain structure made of gold adatoms and gold-thiolate complexes on Au(1 1 1) is predicted here by first principles density functional theory. In this structure, the CH{sub 3}S-Au-SCH{sub 3} complexes are parallel to each other and linked together by interactions between Au adatoms and Au atoms in the complexes as well as by bonding between the Au adatoms and the CH{sub 3}S- groups in the CH{sub 3}S-Au-SCH{sub 3} complexes. This new structure is compared with previously proposed gold-thiolate polymers on Au(1 1 1) and found to be energetically competitive with previous models at both low and high coverages.

Jiang, Deen [ORNL

2009-01-01

130

Institutionen fr energi och teknik Rapport/Report 033 Department of Energy and Technology ISSN 1654-9406  

E-print Network

microturbines. Depending on scale, fuel availability and other factors, different technological solutions mayInstitutionen f�r energi och teknik Rapport/Report 033 Department of Energy and Technology ISSN of Energy and Technology L�nsamhet f�r sm�skalig biobr�nslebaserad kraftv�rme � f�ruts�ttningar och

131

Accs au courrier lectronique  

E-print Network

1 Accès au courrier électronique Netscape Messenger #12;2 Configuration lors d'un premier démarrage votre prénom et votre nom dans l'espace réservé Nom complet et entrer votre adresse de courrier de courrier sortant (SMTP), · cliquer sur le bouton Suivant, · la fenêtre suivante apparaîtra

Skorobogatiy, Maksim

132

Surface morphology and optical properties of porphyrin/Au and Au/porphyrin/Au systems.  

PubMed

Porphyrin/Au and Au/porphyrin/Au systems were prepared by vacuum evaporation and vacuum sputtering onto glass substrate. The surface morphology of as-prepared systems and those subjected to annealing at 160C was studied by optical microscopy, atomic force microscopy, and scanning electron microscopy techniques. Absorption and luminescence spectra of as-prepared and annealed samples were measured. Annealing leads to disintegration of the initially continuous gold layer and formation of gold nanoclusters. An amplification of Soret band magnitude was observed on the Au/meso-tetraphenyl porphyrin (TPP) system in comparison with mere TPP. Additional enhancement of luminescence was observed after the sample annealing. In the case of sandwich Au/porphyrin/Au structure, suppression of one of the two porphyrins' luminescence maxima and sufficient enhancement of the second one were observed. PMID:24373347

Kalachyova, Yevgeniya; Lyutakov, Oleksiy; Solovyev, Andrey; Slepi?ka, Petr; Svor?k, Vaclav

2013-01-01

133

Profil des diab?tiques en h?modialyse chronique: ?tude multicentrique au Maroc  

PubMed Central

Introduction Le diabte reprsente la premire cause de mortalit par insuffisance rnale au Maroc. Sa prvalence selon l'Enqute Nationale sur la Population et la Sant Familiale de 2011 est de 3,3% [1]. Le but de ce travail est de dterminer la prvalence et dtudier le profil clinique des diabtiques en hmodialyse chronique au Maroc. Mthodes Il s'agit d'une tude transversale multicentrique incluant 2066 hmodialyss chroniques dans les 39 centres d'hmodialyse de quatre rgions marocaines. Rsultats La prvalence du diabte en hmodialyse est 21,6%. Lge moyen 5913,2 ans (26-87). Le sex-ratio est de 1,9. L'IMC moyen est de 24,5 4,4 kg/m2 (15-41). 42 patients sont porteurs d?une hpatite virale. La dure moyenne en HD est 39,3 67 mois. 57% des patients gardent une diurse rsiduelle versus 43% chez les non diabtiques. Par rapport ces derniers, nous avons not plus d'HTA (64% versus 45%), plus de complications cardiovasculaires (23% versus 12%), un ge plus avanc l'initiation de l'hmodialyse (55,5 versus 47 ans) et un taux de FAV proximales plus important. Conclusion La prvalence des diabtiques en hmodialyse est relativement leve au Maroc sans tenir compte des patients qui ne bnficient pas dpuration extra-rnale pour des raisons socio-conomiques. Le taux lev de mortalit est imputable au retard et/ou l'absence de la prise en charge nphrologique des diabtiques. Dans nos rgions o le systme sanitaire dispose de faible moyen, l'accent doit tre mis sur le dpistage prcoce de la nphropathie chez le diabtique. PMID:25374630

Kabbali, Nadia; Mikou, Souad; El Pardiya, Nada Tazi; El Bardai, Ghita; Arrayhani, Mohamed; Houssaini, Tarik Sqalli

2014-01-01

134

On the electron affinity of Au3  

NASA Technical Reports Server (NTRS)

The EA of Au3 is estimated to be 3.93 eV. The calculations also show that the feature in the photodetachment spectrum at about 2 eV electron binding energy is due to a two-photon process involving fragmentation of Au3(-) to Au and Au2(-) and subsequent photodetachment of Au2(-). Au3 is found to have a 2B2 ground state that is only slightly distorted from an equilateral triangle.

Bauschlicher, Charles W., Jr.

1989-01-01

135

Rapport Technique  

E-print Network

new classifications criteria for measuring the robustness of both scenarios and solutions. They can ... [15, 22, 27, 18, 55], queuing networks, stochastic systems and game theory. [13, 32, 35, 51], ..... OR Spectrum, 29:295309, 2007. [19] G. B.

duhamel

2014-07-16

136

Ces lois qui brouillent les races . Enseignement, sgrgation et galit en Alabama et au Tennessee (1865-1899)  

Microsoft Academic Search

Résumé:Le présent article examine l'intervention des assemblées législatives de l'Alabama et du Tennessee en matière d'enseignement, de l'Émanicipation jusqu'au début du XXe siècle. L'objectif est d'exposer le processus par lequel les élus de ces États sudistes munirent les remparts de la ségrégation de balistes destructeurs d'égalité des chances. En précisant l'acception du rapport entre la ségrégation et l'égalité, l'article révèle

Nelson Ouellet

2010-01-01

137

My?lome multiple survenant au cours d'une Fi?vre M?diterran?enne Familiale  

PubMed Central

L'objectif de ce travail est de rapporter une observation particulire de mylome multiple survenant au cours d'une maladie priodique. Il s'agit d'un patient tunisien de 53 ans suivi depuis le jeune ge pour maladie priodique dont le diagnostic tait confirm par ltude gntique montrant l'homozygotie pour la mutation M694V du gne MEFV, fut admis pour exploration d'une douleur avec tumfaction fessire droite rcente. Les explorations biologiques et radiologiques ont permis de retenir le diagnostic d'un mylome multiple de type IgA chanes lgres kappa stade III B, associ une volumineuse localisation plasmocytaire trs agressive de l'aile iliaque droite envahissant les structures musculaires avoisinantes. Notre observation, qui notre connaissance est la deuxime signalant une telle association, se distingue par sa survenue brutale, sa progression rapide et le caractre trs agressif de l'hmopathie. PMID:24255729

Salem, Bouomrani; Afef, Farah; Nadia, Bouassida; Nabil, Ayadi; Zouhir, Bahloul; Maher, Beji

2013-01-01

138

Vincent MALFERE PROMOTION X 96 RAPPORT DE STAGE D'OPTION SCIENTIFIQUE  

E-print Network

pollution, au pic de pollution `a l'ozone qui a eu lieu du 7 au 9 ao??ut 1998. L'ozone est un polluant int'eressant car il peut ??etre aussi bien produit localement qu'`a une 'echelle continentale. Ces deux r'egimes de production correspondent `a des mesures d'appoint et de pr'evention de la pollution urbaine diff'erentes, et

Hourdin, Chez Frédéric

139

Rapport technique CERFACS n # TR/CMGC/06/41 Initialisation du modle ORCA l'aide d'analyses  

E-print Network

Rapport technique CERFACS n # TR/CMGC/06/41 Initialisation du modèle ORCA à l'aide d'analyses MERCATOR : application des outils de l'assimilation variationnelle. MERSEA­1/4 # H(ORCA­2 # ) par Abdelaziz, MERCATOR utilise le modèle numérique ORCA0.25 pour produire des analyses de l'état de l'océan à haute

140

Pion Interferometry in AU+AU Collisions at the AGS  

SciTech Connect

Two-pion Bose-Einstein correlations have been studied using the BNL-E866 Forward Spectrometer in 11.6 A {center_dot} GeV/c Au + Au collisions. The data were analyzed using three-dimensional correlation parameterizations to study transverse momentum-dependent source parameters. The freeze-out time and the duration of emission were derived from the source radii parameters.

Lee, J. H.

1999-01-09

141

Le don apr?s un d?c?s d'origine cardiocirculatoire au Canada  

PubMed Central

Rsum Ces recommandations sont le fruit d'un processus multidisciplinaire national ayant dur un an et visant dterminer si et comment l'on pourrait procder au don d'organes aprs un dcs d'origine cardiocirculatoire (don aprs le dcs cardiocirculatoire, ou DDC) au Canada. Le forum national organis en fvrier 2005 a permis aux participants de discuter et d'laborer des recommandations sur les principes, interventions et pratiques se rapportant au DDC. Les aspects thiques et juridiques ont t abords dans les discussions. la fin du Forum, la majorit des participants ont t favorables l'implantation de programmes de DDC au Canada. Les participants du Forum ont galement convenu qu'il fallait formuler et prner des valeurs fondamentales pour orienter l'laboration de programmes et de protocoles bass sur le cadre mdical, thique et juridique tabli lors de cette runion. Mme si la possibilit d'un don d'organes et de tissus doit faire partie intgrante des soins de fin de vie, il faut insister sur le fait que le devoir de diligence envers les patients mourants et leurs familles doit demeurer la priorit des quipes soignantes. La complexit et les rpercussions profondes du dcs sont reconnues et doivent tre respectes, de mme que les diffrences personnelles, ethnoculturelles et religieuses face la mort et au don d'organes. Les dcisions d'arrter le traitement de maintien des fonctions vitales, la prise en charge des derniers moments de la vie et le diagnostic de dcs selon des critres cardiocirculatoires doivent tre distincts et indpendants des processus de don et transplantation. Ce rapport contient des recommandations destines aux gestionnaires de program, aux autorits sanitaires rgionales et aux instances appels laborer les protocoles de DDC. Les programmes doivent tre conus en fonction des lments suivants : direction et planification locales, ducation et engagement des intervenants, mcanismes d'assurance de la scurit et de la qualit et information du public. Il est recommand de commencer par un program de DDC contrl l'unit de soins intensifs o, aprs une dcision par consentement mutuel de cesser le traitement de maintien des fonctions vitales, la mort est attendue, mais n'est pas survenue, ce qui rend possible des discussions non prcipites sur le consentement. Un don non contrl, en cas de dcs aprs un arrt cardiaque non prvu, doit tre envisag seulement une fois que le program de DDC contrl a t tabli. Bien qu'il soit recommand de restreindre le programme initial au don de reins, le don d'autres organes peut aussi tre envisag selon l'expertise rgionale en matire de transplantation. Les rpercussions d'un DDC, y compris les interventions pratiques avant et aprs le dcs, sur la famille du donneur, la disponibilit des organes, la fonction du greffon et la survie du receveur doivent tre documentes de faon mthodique et examines.

Shemie, Sam D.; Baker, Andrew J.; Knoll, Greg; Wall, William; Rocker, Graeme; Howes, Daniel; Davidson, Janet; Pagliarello, Joe; Chambers-Evans, Jane; Cockfield, Sandra; Farrell, Catherine; Glannon, Walter; Gourlay, William; Grant, David; Langevin, Stephan; Wheelock, Brian; Young, Kimberly; Dossetor, John

2006-01-01

142

Facteurs de risque de l'infection par le VIH dans le district de sant de Meyomessala au Cameroun  

PubMed Central

Introduction L'objectif de ce travail tait de dterminer les facteurs de risque de l'infection par le VIH dans le district de sant de Meyomessala (Rgion du Sud) au Cameroun. Mthodes Il s'agissait d'une tude transversale, descriptive et analytique qui s'est droule de Fvrier Mai 2011. Pour cette tude, nous avons obtenu une clairance thique. Rsultats Lchantillon tait constitu de 315 participants dont 181 (57,46%) hommes et 134 (42,54%) femmes. Lge moyen tait de 24,58ans (extrme: 15-45ans). Quarante personnes (40) taient sropositifs, soit une prvalence de l'infection par le VIH de 12,7%. Cette prvalence augmentait significativement (p = 0) avec le nombre de partenaires occasionnels au cours des douze derniers mois, allant de 2,7% chez ceux n'ayant eu aucun partenaire occasionnel 21,25% chez ceux ayant plus de trois partenaires occasionnels (RC = 9,72; IC = 1,27-74,14; P = 0,03). le fait dtre g entre 20 et 24 ans (RC = 4,88; IC = 1,74-13,67; p = 0), avoir plus de trois partenaires sexuels au cours des douze derniers mois (RC = 9,72; IC = 1,27-74,14; p = 0,03), avoir les rapports sexuels avec les prostitus (RC = 2,86; IC = 1,42-5,76; p = 0), avoir eu le chlamydia (RC = 3,00; IC = 1,07-8,39; p = 0,04), avoir eu la syphilis (RC = 3,35; IC = 1,57-7,14; p = 0), avoir des avantages sociaux lors du premier rapport sexuel (RC = 2,57; IC = 1,03-6,43; p = 0,04) constituaient des potentiels facteurs de risque du VIH. Conclusion Il apparait urgent d'intensifier les campagnes de sensibilisation au risque d'infection par le VIH et les maladies sexuellement transmissibles dans le district de sant de Meyomessala PMID:25419299

Mbopi-Keou, Francois-Xavier; Nguefack-Tsague, Georges; Kalla, Ginette Claude Mireille; Abessolo, Stphanie Abo'o; Angwafo, Fru; Muna, Walinjom

2014-01-01

143

A Comparison of HBT Measurements for d + Au and Au + Au collision systems at = 200 GeV  

NASA Astrophysics Data System (ADS)

Two-pion Bose-Einstein correlations are a valuable tool for studying the space-time extent of emission sources in p + A, d + A, and A + A collisions. In recent work, PHENIX has extracted the 3-D HBT radii as a function of centrality and transverse-pair mass (mT) for the d + Au and Au + Au collision systems. A comparison of the radii for both systems indicate strong similarities in the detailed dependencies on centrality and mT, suggestive of important final-state re-scattering effects in the reaction dynamics for the d + Au and Au + Au systems. The measurements also point to a smaller freeze-out size and system lifetime in d + Au as compared to Au + Au.

Mwai, Alex; Phenix Collaboration

2014-09-01

144

Transverse Velocity Scaling in Au+Au Fragmentation  

E-print Network

Invariant transverse-velocity spectra of intermediate-mass fragments were measured with the 4-pi multi-detector system INDRA for collisions of Au on Au at incident energies between 40 and 150 MeV per nucleon. Their scaling properties as a function of incident energy and atomic number Z are used to distinguish and characterize the emissions in (i) peripheral collisions at the projectile and target rapidities, and in (ii) central and (iii) peripheral collisions near mid-rapidity. The importance of dynamical effects is evident in all three cases and their origin is discussed.

J. Lukasik; S. Hudan; F. Lavaud; K. Turzo; G. Auger; Ch. O. Bacri; M. L. Begemann-Blaich; N. Bellaize; R. Bittiger; F. Bocage; B. Borderie; P. Buchet; R. Bougault; B. Bouriquet; J. L. Charvet; A. Chbihi; R. Dayras; D. Durand; D. Dore; J. D. Frankland; E. Galichet; D. Gourio; D. Guinet; B. Hurst; C. Leduc; P. Lautesse; J. L. Laville; A. Le Fevre; R. Legrain; U. Lynen; W. F. J. Mueller; O. Lopez; L. Nalpas; H. Orth; E. Plagnol; E. Rosato; A. Saija; G. Tabacaru; C. Sfienti; C. Schwarz; J. C. Steckmeyer; B. Tamain; W. Trautmann; E. Vient; A. Trzcinski; M. Vigilante; C. Volant; B. Zwieglinski; A. S. Botvina

2002-07-24

145

Directed and elliptic flow in Au + Au at intermediate energies  

E-print Network

Directed and elliptic flow for the Au + Au system at incident energies between 40 and 150 MeV per nucleon has been measured using the INDRA 4 pi multi-detector. For semi-central collisions, the elliptic flow of Z <= 2 particles switches from in-plane to out-of-plane enhancement at around 100 MeV per nucleon, in good agreement with the result reported by the FOPI Collaboration. The directed flow changes sign at a bombarding energy between 50 and 60 MeV per nucleon and remains negative at lower energies. The conditions for the appearance and possible origins of negative flow are discussed.

J. Lukasik; G. Auger; M. L. Begemann-Blaich; N. Bellaize; R. Bittiger; F. Bocage; B. Borderie; R. Bougault; B. Bouriquet; J. L. Charvet; A. Chbihi; R. Dayras; D. Durand; J. D. Frankland; E. Galichet; D. Gourio; D. Guinet; S. Hudan; P. Lautesse; F. Lavaud; A. Le Fevre; R. Legrain; O. Lopez; U. Lynen; W. F. J. Mueller; L. Nalpas; H. Orth; E. Plagnol; E. Rosato; A. Saija; C. Schwarz; C. Sfienti; B. Tamain; W. Trautmann; A. Trzcinski; K. Turzo; E. Vient; M. Vigilante; C. Volant; B. Zwieglinski

2004-10-20

146

? and ? polarization in Au-Au collisions at RHIC  

NASA Astrophysics Data System (ADS)

Experiments at RHIC have shown that in 200 GeV Au-Au collisions, the ? and ?bar hyperons are produced with very small polarizations (Abelev et al., 2007) [1], almost consistent with zero. These results can be understood in terms of a model that we proposed (Barros and Hama, 2008) [2]. In this Letter, we show how this model may be applied in such collisions, and also will discuss the relation of our results with other models, in order to explain the experimental data.

Barros, C. C.; Hama, Y.

2011-05-01

147

Flow in Au+Au collisions at RHIC  

NASA Astrophysics Data System (ADS)

The study of flow can provide information on the initial state dynamics and the degree of equilibration attained in heavy-ion collisions. This contribution presents results for both elliptic and directed flow as determined from data recorded by the PHOBOS experiment in Au+Au runs at RHIC at \\sqrt{s_{{\\rm NN}}} = 19.6, 130 and 200 GeV. The PHOBOS detector provides a unique coverage in pseudorapidity for measuring flow at RHIC. The systematic dependence of flow on pseudorapidity, transverse momentum, centrality and energy is discussed.

Belt Tonjes, Marguerite; PHOBOS Collaboration; Back, B. B.; Baker, M. D.; Ballintijn, M.; Barton, D. S.; Betts, R. R.; Bickley, A. A.; Bindel, R.; Budzanowski, A.; Busza, W.; Carroll, A.; Decowski, M. P.; Garca, E.; George, N.; Gulbrandsen, K.; Gushue, S.; Halliwell, C.; Hamblen, J.; Heintzelman, G. A.; Henderson, C.; Hofman, D. J.; Hollis, R. S.; Holynski, R.; Holzman, B.; Iordanova, A.; Johnson, E.; Kane, J. L.; Katzy, J.; Khan, N.; Kucewicz, W.; Kulinich, P.; Kuo, C. M.; Lin, W. T.; Manly, S.; McLeod, D.; Mignerey, A. C.; Nouicer, R.; Olszewski, A.; Pak, R.; Park, I. C.; Pernegger, H.; Reed, C.; Remsberg, L. P.; Reuter, M.; Roland, C.; Roland, G.; Rosenberg, L.; Sagerer, J.; Sarin, P.; Sawicki, P.; Skulski, W.; Steinberg, P.; Stephans, G. S. F.; Sukhanov, A.; Tang, J.-L.; Trzupek, A.; Vale, C.; van Nieuwenhuizen, G. J.; Verdier, R.; Wolfs, F. L. H.; Wosiek, B.; Wozniak, K.; Wuosmaa, A. H.; Wyslouch, B.

2004-08-01

148

Two new Myxidium species (Myxosporea: Myxidiidae) infecting the gallbladder of African flying fish, Cheilopogon nigricans and Suez fusilier, Caesio suevicus from the Red Sea, Egypt: a morphological and morphometric study.  

PubMed

Myxidium maamouni sp. n. and Myxidium aydai sp. n. were described from the gallbladder of the African flying fish Cheilopogon nigricans and Suez fusilier Caesio suevicus, respectively. Fishes were collected from the Red Sea at Al-Quseir, Egypt. M. maamouni have irregular to mostly rounded polysporous plasmodia with diameter of 27 microm. Spores were sigmoid or S-shaped and sometimes spindle-shaped in the frontal view with smooth valves. They measured 13.5 x 8.0 x 8.2 microm in size. Their polar capsules were equal pyriform and measured 7.0 x 3.2 microm in size with nine to 12 coils. Spores of M. aydai were spindle-shaped in the frontal view with thin smooth valves. They measured 23.0 x 5.6 x 5.5 microm in size. Their polar capsules were pyriform and measured 7.2 x 3.4 microm in size with eight to nine coils. PMID:19347364

Abdel-Baki, Abdel-Azeem Sh

2009-08-01

149

NIR-Sensitive Au-Au?S Nanoparticles for Drug Delivery  

E-print Network

Near IR (NIR) sensitive Au-Au?S nanoparticles were prepared by mixing HAuCl? and Na?S in aqueous solutions. An anti-tumor drug, cis-platin, was adsorbed onto Au-Au?S nanoparticle surface via the 11-mercaptoundecanoic acid ...

Ren, L.

150

Constructing Gold-Thiolate Oligomers and Polymers on Au(111) Based on the Linear S-Au-S Geometry  

SciTech Connect

Although neat gold-thiolate oligomers and polymers made of linear S-Au-S bonds have been well-known, observation of RS-Au-SR linear complexes (RS- being an alkylthiolate group) on Au(111) has been reported only recently. On the basis of the unique geometry and bonding of the RS-Au-SR complex on Au(111), we construct simple geometric models of Au-SR oligomers and polymers on Au(111) by fusing linear S-Au-S units matched to the underlying Au(111) surface lattice. We then optimize these models by density functional theory. The hexagonal geometry of the Au(111) lattice determines three possible angles (60{sup o}, 120{sup o}, and 180{sup o}) for connecting two linear S-Au-S units, which lead to isomerism of the Au-SR oligomers and polymer on Au(111). Here we explore open dimers, trimers, and tetramers and cyclic trimers, tetramers, and hexamers of the Au-SR oligomers on Au(111). We also examine four isomers of the Au-SR polymer on Au(111). We find that the 120{sup o} Au-S-Au angle is preferred in constructing both oligomeric and polymeric isomers. The two polymeric isomers with 120{sup o} Au-S-Au angles are found to be energetically competitive with a previous model proposed for the Au-SR polymer on Au(111). We also discuss potential ways to create Au-SR oligomers on Au(111).

Dai, Sheng [ORNL; Jiang, Deen [ORNL

2009-01-01

151

Constructing Gold-thiolate Oligomers and Polymers on Au(111) Based on the Linear S-Au-S Geometry  

SciTech Connect

Although neat gold-thiolate oligomers and polymers made of linear S-Au-S bonds have been well-known, observation of RS-Au-SR linear complexes (RS-being an alkylthiolate group) on Au(111) has been reported only recently. On the basis of the unique geometry and bonding of the RS-Au-SR complex on Au(111), we construct simple geometric models of Au-SR oligomers and polymers on Au(111) by fusing linear S-Au-S units matched to the underlying Au(111) surface lattice. We then optimize these models by density functional theory. The hexagonal geometry of the Au(111) lattice determines three possible angles (60{sup o}, 120{sup o}, and 180{sup o}) for connecting two linear S-Au-S units, which lead to isomerism of the Au-SR oligomers and polymer on Au(111). Here we explore open dimers, trimers, and tetramers and cyclic trimers, tetramers, and hexamers of the Au-SR oligomers on Au(111). We also examine four isomers of the Au-SR polymer on Au(111). We find that the 120{sup o} Au-S-Au angle is preferred in constructing both oligomeric and polymeric isomers. The two polymeric isomers with 120{sup o} Au-S-Au angles are found to be energetically competitive with a previous model proposed for the Au-SR polymer on Au(111). We also discuss potential ways to create Au-SR oligomers on Au(111).

Jiang, Deen [ORNL; Dai, Sheng [ORNL

2009-01-01

152

Total Petroleum Systems and Assessment Units (AU)  

E-print Network

Total Petroleum Systems (TPS) and Assessment Units (AU) Field type Surface water Groundwater X X X X X X X X AU 00000003 Oil/ Gas X X X X X X X X Total X X X X X X X Total Petroleum Systems (TPS) and Assessment Units (AU) Field type Total undiscovered petroleum (MMBO or BCFG) Water per oil

Torgersen, Christian

153

LA CONTRIBUTION AFRICAINE AU DVELOPPEMENT  

E-print Network

;La contribution africaine 410 au d�veloppement (2009-10) 40 R.D.U.S. de la justice p committed during armed conflicts or by dictatorships and other oppressive political regimes. Traditionally in the administration of justice, these processes would be complementary to the traditional justice system

Spino, Claude

154

La tuberculose cutan?e: observation de six cas confirm?s au CHU Souro SANOU (CHUSS) de Bobo-Dioulasso (Burkina Faso)  

PubMed Central

La localisation cutane de la maladie tuberculeuse demeure une forme rare et reprsente seulement 2,1% des localisations. L'objet de cette tude est de rapporter le profil pidmiologique, anatomoclinique et volutif des cas de tuberculose ganglio-cutane diagnostiqus dans un CHU au Burkina Faso. La frquence de la tuberculose cutane est trs faible au CHUSS. Six cas ont t diagnostiqus entre 2004 et 2010, soit une frquence de un cas par an. La dure dvolution des cas allait de deux jusqu dix ans avant leur diagnostic. Les lsions observes taient: trois scrofulodermes, trois gommes, une tuberculose testiculaire associe un mal de Pott, un cas de polyadnopathies et des cicatrices atropho-rtractiles dans la plupart des cas. Sur le plan anatomopathologique, des granulomes tuberculodes ont t mis en vidence dans tous les cas avec une forte raction tuberculinique l'IDR. Sous antituberculeux pendant six mois, lvolution a t bonne dans tous les cas mais au prix de squelles cutanes cicatricielles inesthtiques. Son ampleur reste peut-tre encore mconnue. Le renforcement du plateau technique du CHU et une bonne collaboration interdisciplinaire contribuerait un meilleur diagnostic et prise en charge de cette affection. PMID:24648863

Andonaba, Jean Baptiste; Barro-Traore, Fatou; Yameogo, Tene; Diallo, Boukary; Korsaga-Some, Nina; Traore, Adama

2013-01-01

155

Pr?sentations de l'ad?nite tuberculeuse de la t?te et du cou au CHU de Bobo-Dioulasso, Burkina Faso  

PubMed Central

Les ganglions de la tte et du cou sont parmi les localisations les plus frquentes de la tuberculose, un problme de sant publique dans le monde. Une tude rtrospective conduite entre 2001 et 2010 rapporte les caractristiques pidmiologiques et cliniques de l'adnite tuberculeuse de la tte et du cou, au CHU Sanou Souro, au Burkina Faso. Au total, 115 patients ont t observs dont l'ge tait compris entre 2 ans et 64 ans (moyenne 31,46 ans). Il y avait 53 patients de sexe masculin (46,1%) et 62 de sexe fminin (53,9%). Un pic de frquence de 39,8% tait observ entre 30 et 39 ans. Les adnopathies cervicales taient multiples chez 96,5% des patients et abcdes chez 30%. Elles taient associes des adnopathies extra cervicales chez 16,6% des patients. Chez 83,4% des patients, il a t not un ou plusieurs signes type d'asthnie et ou d'amaigrissement (70,8%), de fivre 25% ou de toux (20,8%). L'infection associe la plus frquente tait celle par le VIH, observe chez 43,3% des patients. Les rsultats de cette tude commandent la recherche systmatique de l'infection par le VIH chez tout patient porteur d'adnite cervicale tuberculeuse dans un contexte de double endmicit de la tuberculose et de l'infection VIH. PMID:24319521

Beogo, Rasmane; Birba, Noraogo Emile; Coulibaly, Toua Antoine; Traore, Ibraima; Ouoba, Kampadilemba

2013-01-01

156

Acetylene Hydrogenation on Au-Based Catalysts  

Microsoft Academic Search

Hydrogenation of acetylene has been investigated on Au\\/TiO2, Pd\\/TiO2 and Au-Pd\\/TiO2 catalysts at high acetylene conversion levels. The Au\\/TiO2 catalyst (avg. particle size: 4.6 nm) synthesized by the temperature-programmed reduction-oxidation of an Au-phosphine complex on TiO2 showed a remarkably high selectivity to ethylene formation even at 100% acetylene conversion. Au\\/TiO2 prepared by the conventional incipient wet impregnation method (avg. particle

T. V. Choudhary; C. Sivadinarayana; A. K. Datye; D. Kumar; D. W. Goodman

2003-01-01

157

Strategies for Effective Curriculum Planning for "Troubled Youth." Strategy: Establishing Rapport. Intern's Guide. Teachers Corps Associates: Resources for CBTE, No. 10.  

ERIC Educational Resources Information Center

This training product was developed for the Teacher Corps and designed for use by the intern to help him or her learn ways of quickly establishing rapport with troubled youth. Specific objectives are: (a) that the intern will be sensitized to the affective nature of the commitment to teaching troubled youth; (b) that the intern will be able to

Van Brunt, Vida

158

Global polarization measurement in Au+Au collisions  

E-print Network

The system created in non-central relativistic nucleus-nucleus collisions possesses large orbital angular momentum. Due to spin-orbit coupling, particles produced in such a system could become globally polarized along the direction of the system angular momentum. We present the results of Lambda and anti-Lambda hyperon global polarization measurements in Au+Au collisions at sqrt{s_NN}=62.4 GeV and 200 GeV performed with the STAR detector at RHIC. The observed global polarization of Lambda and anti-Lambda hyperons in the STAR acceptance is consistent with zero within the precision of the measurements. The obtained upper limit, |P_{Lambda,anti-Lambda}| <= 0.02, is compared to the theoretical values discussed recently in the literature.

Abelev, B I; Ahammed, Z; Anderson, B D; Arkhipkin, D; Averichev, G S; Bai, Y; Balewski, J; Barannikova, O; Barnby, L S; Baudot, J; Baumgart, S; Belaga, V V; Bellingeri-Laurikainen, A; Bellwied, R; Benedosso, F; Betts, R R; Bhardwaj, S; Bhasin, A; Bhati, A K; Bichsel, H; Bielcik, J; Bielcikova, J; Bland, L C; Blyth, S L; Bombara, M; Bonner, B E; Botje, M; Bouchet, J; Brandin, A V; Bravar, A; Burton, T P; Bystersky, M; Cai, X Z; Caines, H; Caldern de la Barca-Sanchez, M; Callner, J; Catu, O; Cebra, D; Chajecki, Z; Chaloupka, P; Chattopadhyay, S; Chen, H F; Chen, J H; Chen, J Y; Cheng, J; Cherney, M; Chikanian, A; Christie, W; Chung, S U; Coffin, J P; Cormier, T M; Cosentino, M R; Cramer, J G; Crawford, H J; Das, D; Dash, S; Daugherity, M; De Moura, M M; Dedovich, T G; De Phillips, M; Derevshchikov, A A; Didenko, L; Dietel, T; Djawotho, P; Dogra, S M; Dong, X; Drachenberg, J L; Draper, J E; Du, F; Dunin, V B; Dunlop, J C; Dutta-Majumdar, M R; Eckardt, V; Edwards, W R; Efimov, L G; Emelianov, V; Engelage, J; Eppley, G; Erazmus, B; Estienne, M; Fachini, P; Fatemi, R; Fedorisin, J; Feng, A; Filip, P; Finch, E; Fine, V; Fisyak, Yu; Fu, J; Gagliardi, C A; Gaillard, L; Ganti, M S; Garca-Solis, E; Ghazikhanian, V; Ghosh, P; Gorbunov, Y N; Gos, H; Grebenyuk, O; Grosnick, D; Grube, B; Guertin, S M; Guimaraes, K S F F; Gupta, N; Haag, B; Hallman, T J; Hamed, A; Harris, J W; He, W; Heinz, M; Henry, T W; Heppelmann, S; Hippolyte, B; Hirsch, A; Hjort, E; Hoffman, A M; Hoffmann, G W; Hofman, D J; Hollis, R S; Horner, M J; Huang, H Z; Hughes, E W; Humanic, T J; Igo, G; Iordanova, A; Jacobs, P; Jacobs, W W; Jakl, P; Jia, F; Jones, P G; Judd, E G; Kabana, S; Kang, K; Kapitan, J; Kaplan, M; Keane, D; Kechechyan, A; Kettler, D; Khodyrev, V Yu; Kiryluk, J; Kisiel, A; Kislov, E M; Klein, S R; Knospe, A G; Kocoloski, A; Koetke, D D; Kollegger, T; Kopytine, M; Kotchenda, L; Kouchpil, V; Kowalik, K L; Kravtsov, P; Kravtsov, V I; Krger, K; Kuhn, C; Kulikov, A I; Kumar, A; Kurnadi, P; Kuznetsov, A A; Lamont, M A C; Landgraf, J M; Lange, S; La Pointe, S; Laue, F; Lauret, J; Lebedev, A; Lednicky, R; Lee, C H; Lehocka, S; Le Vine, M J; Li, C; Li, Q; Li, Y; Lin, G; Lin, X; Lindenbaum, S J; Lisa, M A; Liu, F; Liu, H; Liu, J; Liu, L; Ljubicic, T; Llope, W J; Longacre, R S; Love, W A; Lu, Y; Ludlam, T; Lynn, D; Ma, G L; Ma, J G; Ma, Y G; Mahapatra, D P; Majka, R; Mangotra, L K; Manweiler, R; Margetis, S; Markert, C; Martin, L; Matis, H S; Matulenko, Yu A; McClain, C J; McShane, T S; Melnik, Yu M; Meschanin, A; Millane, J; Miller, M L; Minaev, N G; Mioduszewski, S; Mischke, A; Mitchell, J; Mohanty, B; Morozov, D A; Munhoz, M G; Nandi, B K; Nattrass, C; Nayak, T K; Nelson, J M; Nepali, C; Netrakanti, P K; Nogach, L V; Nurushev, S B; Odyniec, Grazyna Janina; Ogawa, A; Okorokov, V; Oldenburg, M; Olson, D; Pachr, M; Pal, S K; Panebratsev, Yu A; Pavlinov, A I; Pawlak, T; Peitzmann, T; Perevozchikov, V; Perkins, C; Peryt, W; Phatak, S C; Planinic, M; Pluta, J; Poljak, N; Porile, N; Poskanzer, A M; Potekhin, M V; Potrebenikova, E V; Potukuchi, B V K S; Prindle, D; Pruneau, C; Putschke, J; Qattan, I A; Raniwala, R; Raniwala, S; Ray, R L; Relyea, D; Ridiger, A; Ritter, H G; Roberts, J B; Rogachevski, O V; Romero, J L; Rose, A; Roy, C; Ruan, L; Russcher, M J; Sahoo, R; Sakrejda, I; Sakuma, T; Salur, S; Sandweiss, J; Sarsour, M; Sazhin, P S; Schambach, J; Scharenberg, R P; Schmitz, N; Seger, J; Selyuzhenkov, I; Seyboth, P; Shabetai, A; Shahaliev, E; Shao, M; Sharma, M; Shen, W Q; Shimansky, S S; Sichtermann, E P; Simon, F; Singaraju, R N; Smirnov, N; Snellings, R; Srensen, P; Sowinski, J; Speltz, J; Spinka, H M; Srivastava, B; Stadnik, A; Stanislaus, T D S; Staszak, D; Stock, R; Strikhanov, M N; Stringfellow, B C; Suaide, A A P; Suarez, M C; Subba, N L; Sumbera, M; Sun, X M; Sun, Z; Surrow, B; Symons, T J M; Szanto de Toledo, A; Takahashi, J; Tang, A H; Tarnowsky, T J; Thomas, J H; Timmins, A R; Timoshenko, S; Tokarev, M; Trainor, T A; Trentalange, S; Tribble, R E; Tsai, O D; Ulery, J; Ullrich, T; Underwood, D G; Van Buren, G; Van der Kolk, N; Van Leeuwen, M; Van der Molen, A M; Varma, R; Vasilevski, I M; Vasilev, A N; Vernet, R; Vigdor, S E; Viyogi, Y P; Vokal, S; Voloshin, S A; Wada, M; Waggoner, W T; Wang, F; Wang, G; Wang, J S; Wang, X L; Wang, Y; Webb, J C; Westfall, G D; Whitten, C; Wieman, H; Wissink, S W; Witt, R; Wu, J; Wu, Y; Xu, N; Xu, Q H; Xu, Z; Yepes, P; Yoo, I K; Yue, Q; Yurevich, V I; Zawisza, M; Zhan, W; Zhang, H; Zhang, W M; Zhang, Y; Zhang, Z P; Zhao, Y; Zhong, C; Zhou, J; Zoulkarneev, R; Zoulkarneeva, Y; Zubarev, A N; Zuo, J X

2007-01-01

159

Ferromagnetism of polythiophene-capped Au nanoparticles  

NASA Astrophysics Data System (ADS)

The magnetic and electrical transport properties of regioregular poly(3-hexylthiophene)-capped Au nanoparticles (NPs) doped with iodine have been investigated to clarify the effectiveness of conductive polymer capping on the induction of ferromagnetism in Au. The room-temperature magnetization curve of the undoped polythiophene-capped Au NPs exhibits a clear hysteresis behavior with a coercive force of 160 Oe. The spontaneous magnetization normalized by the mass of Au is 2.0 10-2 emu/g. The spontaneous magnetization was found virtually unaffected by iodine doping, whereas the electrical conductivity is enhanced dramatically to 10 S/cm. Our results show that polythiophene capping could lead to spontaneous magnetic polarization in Au NPs, and the conductivity of the polymer capping does not affect the ferromagnetism of the Au nanoparticles, opening a possibility for further investigation into the magnetotransport behavior of ferromagnetic Au NPs.

Suzuki, K.; Zhang, H.; Saito, K.; Garitaonandia, J. S.; Goikolea, E.; Insausti, M.

2011-04-01

160

Low-resistance Au and Au /Ni/Au Ohmic contacts to p-ZnMgO  

NASA Astrophysics Data System (ADS)

Both electron-beam-deposited Au and Au /Ni/Au are found to produce low-resistance Ohmic contacts (?C in the range 2.510-5-7.610-6?cm2) to p-type ZnMgO (p1016cm-3) on sapphire substrates after annealing at 600C. The as-deposited contacts are rectifying in both cases. For the Au contact, the annealing produces a small amount of outdiffusion of Zn to the surface of the contact, whereas with the Au /Ni/Au, both Ni and Zn are found on the surface. In both cases, the formation of Zn vacancies may play a role in increasing the near-surface hole concentration in the ZnMgO.

Ip, Kelly; Li, Yuanjie; Norton, D. P.; Pearton, S. J.; Ren, F.

2005-08-01

161

Systematic measurements of identified particle spectra in pp, d+Au, and Au+Au collisions at the STAR detector  

Microsoft Academic Search

Identified charged-particle spectra of pi, K, p, and pmacr at midrapidity (|y|<0.1) measured by the dE\\/dx method in the STAR (solenoidal tracker at the BNL Relativistic Heavy Ion Collider) time projection chamber are reported for pp and d+Au collisions at sNN=200 GeV and for Au+Au collisions at 62.4, 130, and 200 GeV. Average transverse momenta, total particle production, particle yield

B. I. Abelev; M. M. Aggarwal; Z. Ahammed; B. D. Anderson; D. Arkhipkin; G. S. Averichev; Y. Bai; J. Balewski; O. Barannikova; L. S. Barnby; J. Baudot; S. Baumgart; D. R. Beavis; R. Bellwied; F. Benedosso; R. R. Betts; S. Bhardwaj; A. Bhasin; A. K. Bhati; H. Bichsel; J. Bielcik; J. Bielcikova; B. Biritz; L. C. Bland; M. Bombara; B. E. Bonner; M. Botje; J. Bouchet; E. Braidot; A. V. Brandin; E. Bruna; S. Bueltmann; T. P. Burton; M. Bystersky; X. Z. Cai; H. Caines; M. Caldern De La Barca Snchez; J. Callner; O. Catu; D. Cebra; R. Cendejas; M. C. Cervantes; Z. Chajecki; P. Chaloupka; S. Chattopadhyay; H. F. Chen; J. H. Chen; J. Cheng; M. Cherney; A. Chikanian; K. E. Choi; W. Christie; S. U. Chung; R. F. Clarke; M. J. M. Codrington; J. P. Coffin; T. M. Cormier; M. R. Cosentino; J. G. Cramer; H. J. Crawford; D. Das; S. Dash; M. Daugherity; C. De Silva; T. G. Dedovich; M. Dephillips; A. A. Derevschikov; R. Derradi de Souza; L. Didenko; P. Djawotho; S. M. Dogra; X. Dong; J. L. Drachenberg; J. E. Draper; F. Du; J. C. Dunlop; M. R. Dutta Mazumdar; W. R. Edwards; L. G. Efimov; E. Elhalhuli; M. Elnimr; V. Emelianov; J. Engelage; G. Eppley; B. Erazmus; M. Estienne; L. Eun; P. Fachini; R. Fatemi; J. Fedorisin; A. Feng; P. Filip; E. Finch; V. Fine; Y. Fisyak; C. A. Gagliardi; L. Gaillard; D. R. Gangadharan; M. S. Ganti; E. Garcia-Solis; V. Ghazikhanian; P. Ghosh; Y. N. Gorbunov; A. Gordon; O. Grebenyuk; D. Grosnick; B. Grube; S. M. Guertin; K. S. F. F. Guimaraes; A. Gupta; N. Gupta; W. Guryn; B. Haag; T. J. Hallman; A. Hamed; J. W. Harris; W. He; M. Heinz; S. Heppelmann; B. Hippolyte; A. Hirsch; E. Hjort; A. M. Hoffman; G. W. Hoffmann; D. J. Hofman; R. S. Hollis; H. Z. Huang; T. J. Humanic; G. Igo; A. Iordanova; P. Jacobs; W. W. Jacobs; P. Jakl; F. Jin; P. G. Jones; J. Joseph; E. G. Judd; S. Kabana; K. Kajimoto; K. Kang; J. Kapitan; M. Kaplan; D. Keane; A. Kechechyan; D. Kettler; V. Yu. Khodyrev; J. Kiryluk; A. Kisiel; S. R. Klein; A. G. Knospe; A. Kocoloski; D. D. Koetke; M. Kopytine; L. Kotchenda; V. Kouchpil; P. Kravtsov; V. I. Kravtsov; K. Krueger; M. Krus; C. Kuhn; L. Kumar; P. Kurnadi; M. A. C. Lamont; J. M. Landgraf; S. Lapointe; J. Lauret; A. Lebedev; R. Lednicky; C.-H. Lee; M. J. Levine; C. Li; Y. Li; G. Lin; X. Lin; S. J. Lindenbaum; M. A. Lisa; F. Liu; H. Liu; J. Liu; L. Liu; T. Ljubicic; W. J. Llope; R. S. Longacre; W. A. Love; Y. Lu; T. Ludlam; D. Lynn; G. L. Ma; Y. G. Ma; D. P. Mahapatra; R. Majka; O. I. Mall; L. K. Mangotra; R. Manweiler; S. Margetis; C. Markert; H. S. Matis; Yu. A. Matulenko; T. S. McShane; A. Meschanin; J. Millane; M. L. Miller; N. G. Minaev; S. Mioduszewski; A. Mischke; J. Mitchell; B. Mohanty; L. Molnar; D. A. Morozov; M. G. Munhoz; B. K. Nandi; C. Nattrass; T. K. Nayak; J. M. Nelson; C. Nepali; P. K. Netrakanti; M. J. Ng; L. V. Nogach; S. B. Nurushev; G. Odyniec; A. Ogawa; H. Okada; V. Okorokov; D. Olson; M. Pachr; B. S. Page; S. K. Pal; Y. Pandit; Y. Panebratsev; T. Pawlak; T. Peitzmann; V. Perevoztchikov; C. Perkins; W. Peryt; S. C. Phatak; M. Planinic; J. Pluta; N. Poljak; A. M. Poskanzer; B. V. K. S. Potukuchi; D. Prindle; C. Pruneau; N. K. Pruthi; J. Putschke; R. Raniwala; S. Raniwala; R. L. Ray; R. Reed; A. Ridiger; H. G. Ritter; J. B. Roberts; O. V. Rogachevskiy; J. L. Romero; A. Rose; C. Roy; L. Ruan; M. J. Russcher; V. Rykov; R. Sahoo; I. Sakrejda; T. Sakuma; S. Salur; J. Sandweiss; M. Sarsour; J. Schambach; R. P. Scharenberg; N. Schmitz; J. Seger; I. Selyuzhenkov; P. Seyboth; A. Shabetai; E. Shahaliev; M. Shao; M. Sharma; S. S. Shi; X.-H. Shi; E. P. Sichtermann; F. Simon; R. N. Singaraju; M. J. Skoby; N. Smirnov; R. Snellings; P. Sorensen; J. Sowinski; H. M. Spinka; B. Srivastava; A. Stadnik; T. D. S. Stanislaus; D. Staszak; M. Strikhanov; B. Stringfellow; A. A. P. Suaide; M. C. Suarez; N. L. Subba; M. Sumbera; X. M. Sun; Y. Sun; Z. Sun; B. Surrow; T. J. M. Symons; A. Szanto de Toledo; J. Takahashi; A. H. Tang; Z. Tang; T. Tarnowsky; D. Thein; J. H. Thomas; J. Tian; A. R. Timmins; S. Timoshenko; D. Tlusty; M. Tokarev; V. N. Tram; A. L. Trattner; S. Trentalange; R. E. Tribble; O. D. Tsai; J. Ulery; T. Ullrich; D. G. Underwood; G. Van Buren; M. van Leeuwen; A. M. Vander Molen; J. A. Vanfossen Jr.; R. Varma; G. M. S. Vasconcelos; I. M. Vasilevski; A. N. Vasiliev; F. Videbaek; S. E. Vigdor; Y. P. Viyogi; S. Vokal; S. A. Voloshin; M. Wada; W. T. Waggoner; F. Wang; G. Wang; J. S. Wang; Q. Wang; X. Wang; Y. Wang; J. C. Webb; G. D. Westfall; C. Whitten Jr.; H. Wieman; S. W. Wissink; R. Witt; Y. Wu; N. Xu; Q. H. Xu; Y. Xu; Z. Xu; P. Yepes; I.-K. Yoo; Q. Yue; M. Zawisza; H. Zbroszczyk; W. Zhan; H. Zhang; S. Zhang; W. M. Zhang; Y. Zhang; Z. P. Zhang; Y. Zhao; C. Zhong; J. Zhou; R. Zoulkarneev; Y. Zoulkarneeva; J. X. Zuo

2009-01-01

162

Measurement of charged particle multiplicity distribution in Au + Au collisions up to 200 GeV  

E-print Network

Au+Au collisions in the Relativistic Heavy Ion Collider (RHIC) herald a new era of opportunities for studying hadronic matter under conditions of high energy density and nucleon density. The theory of strong interactions, ...

Sarin, Pradeep, 1975-

2003-01-01

163

Formation of Au nanoparticles on Si bicrystals  

Microsoft Academic Search

Formation of Au nanoparticles on Si bicrystal has been investigated by transmission electron microscopy. The Au nanoparticles\\u000a were found to form preferentially at the node points of the dislocation network to relieve the strains induced by the dislocations.\\u000a Upon annealing at 150C, the Au nanoparticles were found to be confined by the dislocation grids. Upon further annealing at\\u000a 250C, small

C. H. Liu; W. W. Wu; L. J. Chen

2006-01-01

164

Fe/Au Multilayers: Structure and Magnetoresistance  

SciTech Connect

We have measured the magnetoresistance (MR) in two sets of Fe/Au multilayers, with varying (1) Fe layer thickness, t{sub Fe} = 3-10 nm, and (2) Au layer thickness t{sub Au} = 5-15 nm, grown on Si substrates by sputtering. The multilayer interface structure and magnetic properties were studied by polarized neutron reflectometry (PNR). The study was undertaken to understand the correlation between structure of these multilayers and their magneto-transport properties.

Singh, Surendra; Basu, Saibal; Bhattacharya, D. [Solid State Physics Division, Bhabha Atomic Research Center, Mumbai 400085 (India); Prajapat, C. L. [Technical Physics Division, Bhabha Atomic Research Center, Mumbai 400085 (India); Gupta, M. [UGC-DAE Consortium for Scientific Research, University Campus, Khandwa Road, Indore 452 017 (India)

2011-07-15

165

Ferromagnetism of polythiophene-capped Au nanoparticles  

Microsoft Academic Search

The magnetic and electrical transport properties of regioregular poly(3-hexylthiophene)-capped Au nanoparticles (NPs) doped with iodine have been investigated to clarify the effectiveness of conductive polymer capping on the induction of ferromagnetism in Au. The room-temperature magnetization curve of the undoped polythiophene-capped Au NPs exhibits a clear hysteresis behavior with a coercive force of 160 Oe. The spontaneous magnetization normalized by

K. Suzuki; H. Zhang; K. Saito; J. S. Garitaonandia; E. Goikolea; M. Insausti

2011-01-01

166

Formation of Au(III)DNA Coordinate Complex by Laser Ablation of Au Nanoparticles in Solution  

Microsoft Academic Search

We discovered that an Au(III)-DNA coordinate complex, Au(III)(DNA-base)2(amine)l, are formed by laser ablation of Au nanoparticles in an aqueous solution containing DNA molecules in the presence of amines and multi-valent cations, where l represents an unknown ligand (either amine or water). Optical absorption spectrum of the solution after laser ablation exhibited a 360 nm absorption peak assigned to ligand?Au(III) charge

Yoshihiro Takeda; Tamotsu Kondow; Fumitaka Mafun

2005-01-01

167

Kinematic Correlation of the Ternary Fission for the System 197Au + 197Au  

NASA Astrophysics Data System (ADS)

Collisions of very heavy nuclei 197Au + 197Au at the energy of 15A MeV has been studied with the improved quantum molecular dynamics model. The experimental mass distributions of ternary fission fragments for the system 197Au + 197 Au are reproduced well. The direct and sequential ternary fission modes are studied by the time dependent snapshots of typical ternary events. The analysis of deviation from Viola systematics indicates the nonstatistical feature of the ternary fission in these reactions.

Tian, Junlong; Li, Xian; Yan, Shiwei; Wu, Xizhen; Li, Zhuxia

168

The Electronic Properties and L3 XANES of Au and Nano-Au  

SciTech Connect

The electronic properties of Au crystal and nano Au have been investigated by theory and experiment. Molecularly capped nano-Au was synthesized using the two-phase method. Au nano-particles have been characterized by X-Ray Diffraction (XRD) and Transmission Electron Microscopy (TEM). They retain the fcc crystal structure. Their sizes have been determined to be in a range from 5.5 nm to 1.7 nm. The L3 X-ray Absorption Near Edge Structure (XANES) of nano-Au and Au foil have been recorded using synchrotron radiation, and examined by theoretical calculation based on the first principles. Both theory and experiment show that the nano-Au particles have essentially all the Au L3 XANES features of bulk Au in the near edge region with less pronounced resonance peaks. It is also shown that nano Au exhibits lower 4f binding energy than bulk Au in good agreement with quantum confined Au systems reported previously.

Yiu, Y.M.; Zhang, P.; Sham, T.K. (UWO)

2004-04-20

169

The effect of gold particle size on Au Au bond length and reactivity toward oxygen in supported catalysts  

Microsoft Academic Search

Au catalysts with different metallic particle sizes and supported on silica, alumina, titania, zirconia, ceria, and niobia were prepared, and the reduced catalysts were characterized by EXAFS spectroscopy. As the AuAu coordination number decreased, the interatomic bond length decreased. The AuAu bond length contraction appears to be independent of the support type. A correlation between the dispersion of Pt catalysts

J. T. Miller; A. J. Kropf; Y. Zhac; J. R. Regalbutoc; L. Delannoy; C. Louis; E. Buse; J. A. van Bokhoven

2006-01-01

170

Accs au texte intgral des articles Accs au texte intgral par le rsolveur de liens / 1  

E-print Network

Accès au texte intégral des articles Accès au texte intégral par le résolveur de liens / 1 ­ Accès aux ressources Pour avoir accès aux ressources et au texte intégral des articles, vous devez articles 2 Accès au texte intégral par le résolveur de liens / 2 La BU est abonnée à la revue Accès au

Maume-Deschamps, Véronique

171

forensics.uts.edu.au research themes  

E-print Network

) > Fire investigation and analysis > Illicit drugs > Toxicology > DNA profiling > Forensic anatomyforensics.uts.edu.au research themes science science.uts.edu.au #12;ThE UNIVERSITy OF TEChNOLOgy, SyDNEy'S (UTS) centre for forensic science (cfs) IS A WORLD-LEADINg ACADEMIC AND RESEARCh g

University of Technology, Sydney

172

swinburne.edu.au VET in Schools  

E-print Network

to complete VCE at school while undertaking vocational studies. VCE VET programs are vocational training.vcaa.vic.edu.au/Pages/vet/index.aspx Why choose VET training in the VCE? Students who successfully complete a VCE with a vocationalswinburne.edu.au VET in Schools VET in Schools Programs 2015 What is VET in Schools? Vocational

Liley, David

173

Annee: 2000 Preparee au LAAS-CNRS  

E-print Network

`a l'UNICAMP au Br´esil, pour avoir ´et´e les rap- porteurs de ce travail et d'avoir particip´e au,version1-16Feb2007 #12;MOTIVATIONS ET OBJECTIFS 1 Motivations et Objectifs Robuste d´esigne ce qui est

Paris-Sud XI, Université de

174

Nanoporous Au: A high yield strength material  

Microsoft Academic Search

The plastic deformation of nanoporous Au under compressive stress was studied by depth-sensing nanoindentation combined with scanning electron microscope characterization. The nanoporous Au investigated in the current study exhibits a relative density of 42%, and a spongelike morphology of interconnecting ligaments on a length scale of ~100 nm. The material is polycrystalline with a grain size on the order of

Juergen Biener; Andrea M. Hodge; Alex V. Hamza; Luke M. Hsiung; Joe H. Satcher

2005-01-01

175

Nanoporous Au: A high yield strength material  

Microsoft Academic Search

The plastic deformation of nanoporous Au under compressive stress was studied by depth-sensing nanoindentation combined with scanning electron microscope characterization. The nanoporous Au investigated in the current study exhibits a relative density of 42%, and a spongelike morphology of interconnecting ligaments on a length scale of ?100 nm. The material is polycrystalline with a grain size on the order of

Juergen Biener; Andrea M. Hodge; Alex V. Hamza; Luke M. Hsiung; Joe H. Satcher

2005-01-01

176

NEUROMARKETING ET NEUROSCIENCES AU SERVICE DES PUBLICITAIRES  

E-print Network

1 NEUROMARKETING ET NEUROSCIENCES AU SERVICE DES PUBLICITAIRES : QUESTIONNEMENTS ETHIQUES Didier neuromarketing et des neurosciences au service des publicitaires soulève immanquablement des questions éthiques débats éthiques entre les personnes adeptes du neuromarketing (les "pro-neuromarketing") et les "anti-neuromarketing

Paris-Sud XI, Université de

177

Strengthening of Au-Au bonds in small gold clusters by adsorbing noble gases  

NASA Astrophysics Data System (ADS)

In state-of-the-art experiments for the vibrational spectra of metal clusters in the gas phase, photodissociation spectroscopy is performed on clusters complexed with noble gas (RG) atoms, where a RG atom is usually expected to form a weak van der Waals bond. By employing DFT (PBE functional with selected comparisons to PBE0, and to MP2 and CCSD(T) calculations), we surprisingly find a partially covalent bond of neutral dimers with RG. For RG = Ar, Kr, Xe one or two RG atoms can bind in a linear molecule with Au2. While both Hirschfeld and Mulliken analyses show a small electron transfer from the RG to Au2, the Au-Au bond shortens and the Au-Au stretch frequency increases. This is inconsistent with the expected effect of electron transfer to the antibonding orbital of the dimer. Electron-density (n) differences between the bonded systems and the isolated fragments show an accumulation of n between RG and the neighboring Au atom, and between the gold atoms. The analysis of the projected density of states reveals that, although only non-bonding orbital interactions and no charge transfer occurs between RG and Au2, the d-electrons of Au2 are redistributed due to the interaction with RG in such a way that the Au-Au ?s bond is strengthened.

Ghiringhelli, Luca M.; Levchenko, Sergey; Scheffler, Matthias

2012-02-01

178

Thiol-capped ferromagnetic Au nanoparticles investigated by Au L3 x-ray absorption spectroscopy  

NASA Astrophysics Data System (ADS)

Different dodecanethiol capped Au nanoparticles (NP) with similar sizes (2nm) but different ferromagnetic signals at room temperature have been investigated by means of x-ray absorption spectroscopy at the Au L3-edge. The reversion of the x-ray magnetic circular dichroism signal with the change of sign of the external applied magnetic field confirms the location of the magnetism at the Au atoms. In comparison with the Au foil, all the samples present accentuated white lines at the x-ray absorption near-edge structure (XANES) indicating generation of 5d holes in the Au atoms located at surface of the NPs as consequence of a localized charge transfer from the Au surface atoms to the S atoms of the capping agent. XANES spectra reflect differences among the electronic structure of the Au NPs which are compared with the observed different macroscopic magnetic signals.

Garitaonandia, J. S.; Goikolea, E.; Insausti, M.; Suzuki, M.; Kawamura, N.; Osawa, H.; Gil del Muro, I.; Suzuki, K.; Cashion, J. D.; Gorria, C.; Plazaola, F.; Rojo, T.

2009-04-01

179

Viscous fluid dynamics in Au+Au collisions at RHIC  

E-print Network

We have studied the space-time evolution of minimally viscous ($\\frac{\\eta}{s}$=0.08) QGP fluid, undergoing boost-invariant longitudinal motion and arbitrary transverse expansion. Relaxation equations for the shear stress tensor components, derived from the phenomenological Israel-Stewart's theory of dissipative relativistic fluid, are solved simultaneously with the energy-momentum conservation equations. Comparison of evolution of ideal and viscous fluid, both initialized under the similar conditions, e.g. same equilibration time, energy density and velocity profile, indicate that in viscous fluid, energy density or temperature of the fluid evolve slowly than in an ideal fluid. Transverse expansion is also more in viscous evolution. We have also studied particle production in viscous dynamics. Compared to ideal dynamics, in viscous dynamics, particle yield at high $p_T$ is increased. Elliptic flow on the other hand decreases. Minimally viscous QGP fluid, initialized at entropy density $s_{ini}$=110 $fm^{-3}$ at the initial time $\\tau_i$=0.6 fm, if freeze-out at temperature $T_F$=130 MeV, explains the centrality dependence of $p_T$ spectra of identified particles. Experimental $p_T$ spectra of $\\pi^-$, $K^+$ and protons in 0-5%, 5-10%, 10-20%, 20-30%, 30-40% and 40-50% Au+Au collisions are well reproduced through out the experimental $p_T$ range. This is in contrast to ideal dynamics, where, the spectra are reproduced only up to $p_T\\approx$1.5 GeV. Minimally viscous QGP fluid, also explain the elliptic flow in mid-central (10-20%, 16-23%, 20-30%) collisions. The minimum bias elliptic flow is also explained. However, the model under-predict/over-predict the elliptic flow in very central/peripheral collisions.

A. K. Chaudhuri

2008-01-21

180

Thermal and photoinduced reduction of ionic Au(III) to elemental Au nanoparticles by dissolved organic matter in water: possible source of naturally occurring Au nanoparticles.  

PubMed

Naturally occurring Au nanoparticles (AuNPs) have been widely observed in ore deposits, coal, soil, and environmental water. Identifying the source of these naturally occurring AuNPs could be helpful for not only the discovery of Au deposits through advanced exploration methods, but also the elucidation of the biogeochemical cycle and environmental toxicity of ionic Au and engineered AuNPs. Here, we investigated the effect of natural/simulated sunlight and heating on the reduction of ionic Au by ubiquitous dissolved organic matter (DOM) in river water. The reductive process probed by X-ray photoelectron spectroscopy revealed that phenolic, alcoholic, and aldehyde groups in DOM act as reductive sites. Long-time exposure with thermal and photoirradiation induced the further fusion and growth of AuNPs to branched Au nanostructure as precipitation. The formation processes and kinetics of AuNPs were further investigated using humic acid (HA) as the DOM model, with comprehensive characterizing methods. We have observed that HA can reduce ionic Au(III) complex (as chloride or hydroxyl complex) to elemental Au nanoparticles under sunlight or heating. In this process, nearly all of the Au(III) could be reduced to AuNPs, in which HA serves as not only the reductive agent, but also the coating agent to stabilize and disperse AuNPs. The size and stability of AuNPs were highly dependent on the concentration ratio of Au(III) to HA. These results imply that, besides biological processes, this thermal or photochemical reduction process is another possible source of naturally occurring AuNPs in natural environments, which possibly has critical impacts on the transport and transformation of Au and engineered AuNPs. PMID:24471802

Yin, Yongguang; Yu, Sujuan; Liu, Jingfu; Jiang, Guibin

2014-03-01

181

Production of omega mesons in p + p, d + Au, Cu + Cu, and Au + Au collisions at sNN=200 GeV  

Microsoft Academic Search

The PHENIX experiment at the Relativistic Heavy Ion Collider has measured omega meson production via leptonic and hadronic decay channels in p+p, d+Au, Cu+Cu, and Au+Au collisions at sNN = 200 GeV. The invariant transverse momentum spectra measured in different decay modes give consistent results. Measurements in the hadronic decay channel in Cu+Cu and Au+Au collisions show that omega production

A. Adare; S. Afanasiev; C. Aidala; N. N. Ajitanand; Y. Akiba; H. Al-Bataineh; A. Al-Jamel; J. Alexander; A. Angerami; K. Aoki; N. Apadula; L. Aphecetche; Y. Aramaki; R. Armendariz; S. H. Aronson; J. Asai; E. T. Atomssa; R. Averbeck; T. C. Awes; B. Azmoun; V. Babintsev; M. Bai; G. Baksay; L. Baksay; A. Baldisseri; K. N. Barish; P. D. Barnes; B. Bassalleck; A. T. Basye; S. Bathe; S. Batsouli; V. Baublis; F. Bauer; C. Baumann; A. Bazilevsky; S. Belikov; R. Belmont; R. Bennett; A. Berdnikov; Y. Berdnikov; J. H. Bhom; A. A. Bickley; M. T. Bjorndal; D. S. Blau; J. G. Boissevain; J. S. Bok; H. Borel; K. Boyle; M. L. Brooks; D. S. Brown; D. Bucher; H. Buesching; V. Bumazhnov; G. Bunce; J. M. Burward-Hoy; S. Butsyk; C. M. Camacho; S. Campbell; A. Caringi; J.-S. Chai; B. S. Chang; J.-L. Charvet; C.-H. Chen; S. Chernichenko; C. Y. Chi; J. Chiba; M. Chiu; I. J. Choi; J. B. Choi; R. K. Choudhury; P. Christiansen; T. Chujo; P. Chung; A. Churyn; O. Chvala; V. Cianciolo; Z. Citron; C. R. Cleven; Y. Cobigo; B. A. Cole; M. P. Comets; Z. Conesa Del Valle; M. Connors; P. Constantin; M. Csand; T. Csrgo; T. Dahms; S. Dairaku; I. Danchev; K. Das; A. Datta; G. David; M. K. Dayananda; M. B. Deaton; K. Dehmelt; H. Delagrange; A. Denisov; D. D'Enterria; A. Deshpande; E. J. Desmond; K. V. Dharmawardane; O. Dietzsch; A. Dion; M. Donadelli; J. L. Drachenberg; O. Drapier; A. Drees; K. A. Drees; A. K. Dubey; J. M. Durham; A. Durum; D. Dutta; V. Dzhordzhadze; L. D'Orazio; S. Edwards; Y. V. Efremenko; J. Egdemir; F. Ellinghaus; W. S. Emam; T. Engelmore; A. Enokizono; H. En'yo; B. Espagnon; S. Esumi; K. O. Eyser; B. Fadem; D. E. Fields; M. Finger; M. Finger Jr.; F. Fleuret; S. L. Fokin; B. Forestier; Z. Fraenkel; J. E. Frantz; A. Franz; A. D. Frawley; K. Fujiwara; Y. Fukao; S.-Y. Fung; T. Fusayasu; S. Gadrat; I. Garishvili; F. Gastineau; M. Germain; A. Glenn; H. Gong; M. Gonin; J. Gosset; Y. Goto; R. Granier de Cassagnac; N. Grau; S. V. Greene; G. Grim; M. Grosse Perdekamp; T. Gunji; H.-. Gustafsson; T. Hachiya; A. Hadj Henni; C. Haegemann; J. S. Haggerty; M. N. Hagiwara; K. I. Hahn; H. Hamagaki; J. Hamblen; R. Han; J. Hanks; H. Harada; E. P. Hartouni; K. Haruna; M. Harvey; E. Haslum; K. Hasuko; R. Hayano; X. He; M. Heffner; T. K. Hemmick; T. Hester; J. M. Heuser; H. Hiejima; J. C. Hill; R. Hobbs; M. Hohlmann; M. Holmes; W. Holzmann; K. Homma; B. Hong; T. Horaguchi; D. Hornback; S. Huang; M. G. Hur; T. Ichihara; R. Ichimiya; J. Ide; H. Iinuma; Y. Ikeda; K. Imai; M. Inaba; Y. Inoue; D. Isenhower; L. Isenhower; M. Ishihara; T. Isobe; M. Issah; A. Isupov; D. Ivanischev; Y. Iwanaga; B. V. Jacak; J. Jia; X. Jiang; J. Jin; O. Jinnouchi; B. M. Johnson; T. Jones; K. S. Joo; D. Jouan; D. S. Jumper; F. Kajihara; S. Kametani; N. Kamihara; J. Kamin; M. Kaneta; J. H. Kang; H. Kanou; J. Kapustinsky; K. Karatsu; M. Kasai; T. Kawagishi; D. Kawall; M. Kawashima; A. V. Kazantsev; S. Kelly; T. Kempel; A. Khanzadeev; K. M. Kijima; J. Kikuchi; A. Kim; B. I. Kim; D. H. Kim; D. J. Kim; E. Kim; S. H. Kim; Y.-J. Kim; Y.-S. Kim; E. Kinney; K. Kiriluk; . Kiss; E. Kistenev; A. Kiyomichi; J. Klay; C. Klein-Boesing; L. Kochenda; V. Kochetkov; B. Komkov; M. Konno; J. Koster; D. Kotchetkov; A. Kozlov; A. Krl; A. Kravitz; P. J. Kroon; J. Kubart; G. J. Kunde; N. Kurihara; K. Kurita; M. Kurosawa; M. J. Kweon; Y. Kwon; G. S. Kyle; R. Lacey; Y. S. Lai; J. G. Lajoie; A. Lebedev; Y. Le Bornec; S. Leckey; D. M. Lee; J. Lee; K. Lee; K. S. Lee; M. K. Lee; T. Lee; M. J. Leitch; M. A. L. Leite; E. Leitner; B. Lenzi; X. Li; P. Lichtenwalner; P. Liebing; H. Lim; L. A. Linden Levy; T. Liska; A. Litvinenko; H. Liu; M. X. Liu; B. Love; R. Luechtenborg; D. Lynch; C. F. Maguire; Y. I. Makdisi; A. Malakhov; M. D. Malik; V. I. Manko; E. Mannel; Y. Mao; L. Masek; H. Masui; F. Matathias; M. C. McCain; M. McCumber; P. L. McGaughey; N. Means; B. Meredith; Y. Miake; T. Mibe; A. C. Mignerey; P. Mikes; K. Miki; T. E. Miller; A. Milov; S. Mioduszewski; G. C. Mishra; M. Mishra; J. T. Mitchell; M. Mitrovski; A. K. Mohanty; H. J. Moon; Y. Morino; A. Morreale; D. P. Morrison; J. M. Moss; T. V. Moukhanova; D. Mukhopadhyay; T. Murakami; J. Murata; S. Nagamiya; Y. Nagata; J. L. Nagle; M. Naglis; M. I. Nagy; I. Nakagawa; Y. Nakamiya; K. R. Nakamura; T. Nakamura; K. Nakano; S. Nam; J. Newby; M. Nguyen; M. Nihashi; B. E. Norman; R. Nouicer; A. S. Nyanin; J. Nystrand; C. Oakley; E. O'Brien; S. X. Oda; C. A. Ogilvie; H. Ohnishi; I. D. Ojha; M. Oka; K. Okada; O. O. Omiwade; Y. Onuki; A. Oskarsson; I. Otterlund; M. Ouchida; K. Ozawa; R. Pak; D. Pal; A. P. T. Palounek; V. Pantuev; V. Papavassiliou; I. H. Park; S. K. Park; W. J. Park; S. F. Pate; H. Pei; J.-C. Peng; H. Pereira; V. Peresedov; D. Yu. Peressounko; R. Petti; C. Pinkenburg; R. P. Pisani; M. Proissl; M. L. Purschke; A. K. Purwar; H. Qu; J. Rak; A. Rakotozafindrabe; I. Ravinovich; K. F. Read; S. Rembeczki; M. Reuter; K. Reygers

2011-01-01

182

Engineered fabrication of ordered arrays of Au-NiO-Au nanowires.  

PubMed

In the present paper, a novel method to fabricate ordered arrays of Au/NiO/Au nanowires is described, with the aim of filling the gap between the fundamental study of the electrical properties of scattered single nanowires and the engineered fabrication of nanowire arrays. This approach mainly consists of the following steps: (a) electrodeposition of Au/Ni/Au nanowires into an ordered porous anodic aluminum oxide template; (b) mechanical polishing of the sample to expose the gold tips of Au/Ni/Au nanowires to the template surface; (c) in situ annealing of the Au/Ni/Au nanowires without removing the template. The resulting structure consists in an ordered array of Au/NiO/Au nanowires slightly protruding out of a flat aluminum oxide template. Unlike current approaches, with the described method it is not necessary to remove the template in order to oxidize the middle metal, thus allowing the availability of an entire set of metal/oxide/metal nanowires ordered in a two-dimensional matrix and where single heterojunctions can be accessed individually. PMID:23291391

Perego, Daniele; Franz, Silvia; Bestetti, Massimiliano; Cattaneo, Laura; Brivio, Stefano; Tallarida, Grazia; Spiga, Sabina

2013-02-01

183

Au/Au@polythiophene core/shell nanospheres for heterogeneous catalysis of nitroarenes.  

PubMed

Monodisperse Au/Au@polythiophene core/shell nanospheres were facilely prepared through the reduction of gold precursor, AuCl??, by 2-thiopheneacetonitrile in an aqueous solution. Concomitantly, 2-thiopheneacetonitrile polymerized during this redox process. As a result, Au nanoparticle was encapsulated by conductive polymer shell to afford novel core/shell nanospheres. Interestingly, the shell was composed of very tiny Au nanoparticles surrounded with thiophene polymers. Thus, the new material is best described as Au/Au@polythiophene core/shell nanospheres. FT-IR spectroscopy revealed that the Au nanoparticles were coordinated by the C?N groups of the polythiophene shell. Some of the C?N groups were partially hydrolyzed into COOH groups during the redox process because of the acidic reaction condition. The shell was conductive based on the typical ohmic behavior found in electrical measurement. The Au/Au@polythiophene core/shell nanospheres were found to be very active catalysts for the hydrogenation of various nitroarene compounds into corresponding aminoarene compounds in the presence of NaBH?. Both hydrophilic and hydrophobic nitroarenes were efficiently hydrogenated under mild conditions. PMID:23106495

Shin, Hye-Seon; Huh, Seong

2012-11-01

184

Ngse au Point d'une technique d'obtention de couches minces textures de MoSe2  

NASA Astrophysics Data System (ADS)

A new process to obtain textured MoSe2 thin films is described MoTe2 thin films obtained by D.C. diode sputtering are annealed at 840 K during 24 h under Te and Se vapors. During the annealing MoSe2 crystallites growths with their c axis perpendicular to the plane of the substrate. The evolution of the properties of the layers is investigated by X-Ray photoelectron spectroscopy (Y.PS), X-ray diffraction and scanning electron microscopy, the atomic ratio Se/Te is taken as parameter. Une technologie d'obtention de couches minces textures de MoSe2 a t mise au point. Ces couches sont obtenues partir de couches de MoTe2 dposes par pulvrisation diode continue, puis traites thermiquement (recuit 24 h 840 K) en prsence de vapeur de Te et de Se, L'volution des proprits des couches, en fonction du rapport atomique Se/Te prsent lors du recuit, est tudie par spectroscopie de photolectrons (XPS), diffraction de rayons X et microscopie balayage.

Manai, N.; Bernede, J. C.; Spiesser, M.

1991-11-01

185

Au40: A Large Tetrahedral Magic Cluster  

E-print Network

40 is a magic number for tetrahedral symmetry predicted in both nuclear physics and the electronic jellium model. We show that Au40 could be such a a magic cluster from density functional theory-based basin hopping for global minimization. The putative global minimum found for Au40 has a twisted pyramid structure, reminiscent of the famous tetrahedral Au20, and a sizable HOMO-LUMO gap of 0.69 eV, indicating its molecular nature. Analysis of the electronic states reveals that the gap is related to shell closings of the metallic electrons in a tetrahedrally distorted effective potential.

Jiang, De-en

2011-01-01

186

IUE spectra of flares on AU Mic  

NASA Technical Reports Server (NTRS)

Some IUE spectra were obtained in August 1980 through a substantial part of the optical cycle of the BY Draconis-type, spotted M dwarf star, AU Mic. No modulation of the ultraviolet emission line fluxes in antiphase with the optical curve is detected. Simultaneous optical photometry of AU Mic shows remarkably poor correlation of optical flare strength and ultraviolet emission-line enhancements. The flares detected on AU Mic show considerable variety in the degree of enhancement in the various emission lines and optical continuum.

Butler, C. J.; ion lines and optical continuum.

1986-01-01

187

La Charte de l'expertise au CNRS (Les astrisques renvoient au glossaire joint en annexe)  

E-print Network

1 La Charte de l'expertise au CNRS (Les astérisques renvoient au glossaire joint en annexe) La Charte de l'expertise au CNRS a été adoptée par son Conseil d'administration du 23 juin 2011. Elle s'inscrit dans le cadre des principes généraux énoncés par la Charte nationale de l'expertise du 22 décembre 2009

Canet, Léonie

188

Nuclear modification factors of phi mesons in d+Au, Cu+Cu and Au+Au collisions at sqrt(S_NN)=200 GeV  

Microsoft Academic Search

The PHENIX experiment at the Relativistic Heavy Ion Collider (RHIC) has\\u000aperformed systematic measurements of phi meson production in the K+K- decay\\u000achannel at midrapidity in p+p, d+Au, Cu+Cu and Au+Au collisions at\\u000asqrt(S_NN)=200 GeV. Results are presented on the phi invariant yield and the\\u000anuclear modification factor R_AA for Au+Au and Cu+Cu, and R_dA for d+Au\\u000acollisions, studied as

A. Adare; S. Afanasiev; C. Aidala; N. N. Ajitanand; Y. Akiba; H. Al-Bataineh; J. Alexander; A. Al-Jamel; A. Angerami; K. Aoki; L. Aphecetche; Y. Aramaki; R. Armendariz; S. H. Aronson; J. Asai; E. T. Atomssa; R. Averbeck; T. C. Awes; B. Azmoun; V. Babintsev; M. Bai; G. Baksay; L. Baksay; A. Baldisseri; K. N. Barish; P. D. Barnes; B. Bassalleck; A. T. Basye; S. Bathe; S. Batsouli; V. Baublis; F. Bauer; C. Baumann; A. Bazilevsky; S. Belikov; R. Belmont; R. Bennett; A. Berdnikov; Y. Berdnikov; J. H. Bhom; A. A. Bickley; M. T. Bjorndal; D. S. Blau; J. G. Boissevain; J. S. Bok; H. Borel; N. Borggren; K. Boyle; M. L. Brooks; D. S. Brown; D. Bucher; H. Buesching; V. Bumazhnov; G. Bunce; J. M. Burward-Hoy; S. Butsyk; S. Campbell; A. Caringi; N. Cassano; J.-S. Chai; B. S. Chang; J.-L. Charvet; C.-H. Chen; S. Chernichenko; J. Chiba; C. Y. Chi; M. Chiu; I. J. Choi; J. B. Choi; R. K. Choudhury; P. Christiansen; T. Chujo; P. Chung; A. Churyn; O. Chvala; V. Cianciolo; Z. Citron; C. R. Cleven; Y. Cobigo; B. A. Cole; M. P. Comets; Z. Conesa del Valle; M. Connors; P. Constantin; M. Csanad; T. Csorgo; T. Dahms; S. Dairaku; I. Danchev; K. Das; A. Datta; G. David; M. K. Dayananda; M. B. Deaton; K. Dehmelt; H. Delagrange; A. Denisov; D. d'Enterria; A. Deshpande; E. J. Desmond; K. V. Dharmawardane; O. Dietzsch; A. Dion; M. Donadelli; L. D Orazio; J. L. Drachenberg; O. Drapier; A. Drees; K. A. Drees; A. K. Dubey; J. M. Durham; A. Durum; D. Dutta; V. Dzhordzhadze; S. Edwards; Y. V. Efremenko; J. Egdemir; F. Ellinghaus; W. S. Emam; T. Engelmore; A. Enokizono; H. En'yo; B. Espagnon; S. Esumi; K. O. Eyser; B. Fadem; D. E. Fields; M. Finger Jr.; M. Finger; F. Fleuret; S. L. Fokin; B. Forestier; Z. Fraenkel; J. E. Frantz; A. Franz; A. D. Frawley; K. Fujiwara; Y. Fukao; S.-Y. Fung; T. Fusayasu; S. Gadrat; I. Garishvili; F. Gastineau; M. Germain; A. Glenn; H. Gong; M. Gonin; J. Gosset; Y. Goto; R. Granier de Cassagnac; N. Grau; S. V. Greene; G. Grim; M. Grosse Perdekamp; T. Gunji; H.-A. Gustafsson; T. Hachiya; A. Hadj Henni; C. Haegemann; J. S. Haggerty; M. N. Hagiwara; K. I. Hahn; H. Hamagaki; J. Hamblen; J. Hanks; R. Han; H. Harada; E. P. Hartouni; K. Haruna; M. Harvey; E. Haslum; K. Hasuko; R. Hayano; M. Heffner; T. K. Hemmick; T. Hester; J. M. Heuser; X. He; H. Hiejima; J. C. Hill; R. Hobbs; M. Hohlmann; M. Holmes; W. Holzmann; K. Homma; B. Hong; T. Horaguchi; D. Hornback; S. Huang; M. G. Hur; T. Ichihara; R. Ichimiya; H. Iinuma; Y. Ikeda; K. Imai; M. Inaba; Y. Inoue; D. Isenhower; L. Isenhower; M. Ishihara; T. Isobe; M. Issah; A. Isupov; D. Ivanischev; Y. Iwanaga; B. V. Jacak; J. Jia; X. Jiang; J. Jin; O. Jinnouchi; B. M. Johnson; T. Jones; K. S. Joo; D. Jouan; D. S. Jumper; F. Kajihara; S. Kametani; N. Kamihara; J. Kamin; M. Kaneta; J. H. Kang; H. Kanou; J. Kapustinsky; K. Karatsu; M. Kasai; T. Kawagishi; D. Kawall; M. Kawashima; A. V. Kazantsev; S. Kelly; T. Kempel; A. Khanzadeev; K. M. Kijima; J. Kikuchi; A. Kim; B. I. Kim; D. H. Kim; D. J. Kim; E. J. Kim; Y.-J. Kim; Y.-S. Kim; E. Kinney; A. Kiss; E. Kistenev; A. Kiyomichi; J. Klay; C. Klein-Boesing; L. Kochenda; V. Kochetkov; B. Komkov; M. Konno; J. Koster; D. Kotchetkov; D. Kotov; A. Kozlov; A. Kral; A. Kravitz; P. J. Kroon; J. Kubart; G. J. Kunde; N. Kurihara; K. Kurita; M. Kurosawa; M. J. Kweon; Y. Kwon; G. S. Kyle; R. Lacey; Y. S. Lai; J. G. Lajoie; A. Lebedev; Y. Le Bornec; S. Leckey; D. M. Lee; J. Lee; K. B. Lee; K. S. Lee; M. K. Lee; T. Lee; M. J. Leitch; M. A. L. Leite; B. Lenzi; P. Lichtenwalner; P. Liebing; H. Lim; L. A. Linden Levy; T. Liska; A. Litvinenko; H. Liu; M. X. Liu; X. Li; B. Love; D. Lynch; C. F. Maguire; Y. I. Makdisi; A. Malakhov; M. D. Malik; V. I. Manko; E. Mannel; Y. Mao; L. Masek; H. Masui; F. Matathias; M. C. McCain; M. McCumber; P. L. McGaughey; N. Means; B. Meredith; Y. Miake; T. Mibe; A. C. Mignerey; P. Mikes; K. Miki; T. E. Miller; A. Milov; S. Mioduszewski; G. C. Mishra; M. Mishra; J. T. Mitchell; M. Mitrovski; A. K. Mohanty; H. J. Moon; Y. Morino; A. Morreale; J. M. Moss; T. V. Moukhanova; D. Mukhopadhyay; T. Murakami; J. Murata; S. Nagamiya; Y. Nagata; J. L. Nagle; M. Naglis; M. I. Nagy; I. Nakagawa; Y. Nakamiya; K. R. Nakamura; T. Nakamura; K. Nakano; S. Nam; J. Newby; M. Nguyen; M. Nihashi; B. E. Norman; R. Nouicer; A. S. Nyanin; J. Nystrand; C. Oakley; E. O'Brien; S. X. Oda; C. A. Ogilvie; H. Ohnishi; I. D. Ojha; K. Okada; M. Oka; O. O. Omiwade; Y. Onuki; A. Oskarsson; I. Otterlund; M. Ouchida; K. Ozawa; R. Pak; D. Pal; A. P. T. Palounek; V. Pantuev; V. Papavassiliou; I. H. Park; S. K. Park; W. J. Park; S. F. Pate; H. Pei; J.-C. Peng; H. Pereira; V. Peresedov; D. Yu. Peressounko; R. Petti; C. Pinkenburg; R. P. Pisani; M. Proissl; M. L. Purschke; A. K. Purwar; H. Qu; J. Rak; A. Rakotozafindrabe; I. Ravinovich; K. F. Read; S. Rembeczki; M. Reuter; K. Reygers; V. Riabov; Y. Riabov; E. Richardson; D. Roach; G. Roche

2010-01-01

189

Nuclear modification factors of varphi mesons in d+Au, Cu+Cu, and Au+Au collisions at sNN=200GeV  

Microsoft Academic Search

The PHENIX experiment at the Relativistic Heavy Ion Collider has performed systematic measurements of varphi meson production in the K+K- decay channel at midrapidity in p+p, d+Au, Cu+Cu, and Au+Au collisions at sNN=200GeV. Results are presented on the varphi invariant yield and the nuclear modification factor RAA for Au+Au and Cu+Cu, and RdA for d+Au collisions, studied as a function

A. Adare; S. Afanasiev; C. Aidala; N. N. Ajitanand; Y. Akiba; H. Al-Bataineh; J. Alexander; A. Al-Jamel; A. Angerami; K. Aoki; N. Apadula; L. Aphecetche; Y. Aramaki; R. Armendariz; S. H. Aronson; J. Asai; E. T. Atomssa; R. Averbeck; T. C. Awes; B. Azmoun; V. Babintsev; M. Bai; G. Baksay; L. Baksay; A. Baldisseri; K. N. Barish; P. D. Barnes; B. Bassalleck; A. T. Basye; S. Bathe; S. Batsouli; V. Baublis; F. Bauer; C. Baumann; A. Bazilevsky; S. Belikov; R. Belmont; R. Bennett; A. Berdnikov; Y. Berdnikov; J. H. Bhom; A. A. Bickley; M. T. Bjorndal; D. S. Blau; J. G. Boissevain; J. S. Bok; H. Borel; N. Borggren; K. Boyle; M. L. Brooks; D. S. Brown; D. Bucher; H. Buesching; V. Bumazhnov; G. Bunce; J. M. Burward-Hoy; S. Butsyk; S. Campbell; A. Caringi; J.-S. Chai; B. S. Chang; J. L. Charvet; C. H. Chen; S. Chernichenko; J. Chiba; C. Y. Chi; M. Chiu; I. J. Choi; J. B. Choi; R. K. Choudhury; P. Christiansen; T. Chujo; P. Chung; A. Churyn; O. Chvala; V. Cianciolo; Z. Citron; C. R. Cleven; Y. Cobigo; B. A. Cole; M. P. Comets; Z. Conesa Del Valle; M. Connors; P. Constantin; M. Csand; T. Csrgo; T. Dahms; S. Dairaku; I. Danchev; K. Das; A. Datta; G. David; M. K. Dayananda; M. B. Deaton; K. Dehmelt; H. Delagrange; A. Denisov; D. D'Enterria; A. Deshpande; E. J. Desmond; K. V. Dharmawardane; O. Dietzsch; A. Dion; M. Donadelli; L. D'Orazio; J. L. Drachenberg; O. Drapier; A. Drees; K. A. Drees; A. K. Dubey; J. M. Durham; A. Durum; D. Dutta; V. Dzhordzhadze; S. Edwards; Y. V. Efremenko; J. Egdemir; F. Ellinghaus; W. S. Emam; T. Engelmore; A. Enokizono; H. En'Yo; B. Espagnon; S. Esumi; K. O. Eyser; B. Fadem; D. E. Fields; M. Finger Jr.; M. Finger; F. Fleuret; S. L. Fokin; B. Forestier; Z. Fraenkel; J. E. Frantz; A. Franz; A. D. Frawley; K. Fujiwara; Y. Fukao; S. Y. Fung; T. Fusayasu; S. Gadrat; I. Garishvili; F. Gastineau; M. Germain; A. Glenn; H. Gong; M. Gonin; J. Gosset; Y. Goto; R. Granier de Cassagnac; N. Grau; S. V. Greene; G. Grim; M. Grosse Perdekamp; T. Gunji; H.-. Gustafsson; T. Hachiya; A. Hadj Henni; C. Haegemann; J. S. Haggerty; M. N. Hagiwara; K. I. Hahn; H. Hamagaki; J. Hamblen; J. Hanks; R. Han; H. Harada; E. P. Hartouni; K. Haruna; M. Harvey; E. Haslum; K. Hasuko; R. Hayano; M. Heffner; T. K. Hemmick; T. Hester; J. M. Heuser; X. He; H. Hiejima; J. C. Hill; R. Hobbs; M. Hohlmann; M. Holmes; W. Holzmann; K. Homma; B. Hong; T. Horaguchi; D. Hornback; S. Huang; M. G. Hur; T. Ichihara; R. Ichimiya; H. Iinuma; Y. Ikeda; K. Imai; M. Inaba; Y. Inoue; D. Isenhower; L. Isenhower; M. Ishihara; T. Isobe; M. Issah; A. Isupov; D. Ivanischev; Y. Iwanaga; B. V. Jacak; J. Jia; X. Jiang; J. Jin; O. Jinnouchi; B. M. Johnson; T. Jones; K. S. Joo; D. Jouan; D. S. Jumper; F. Kajihara; S. Kametani; N. Kamihara; J. Kamin; M. Kaneta; J. H. Kang; H. Kanou; J. Kapustinsky; K. Karatsu; M. Kasai; T. Kawagishi; D. Kawall; M. Kawashima; A. V. Kazantsev; S. Kelly; T. Kempel; A. Khanzadeev; K. M. Kijima; J. Kikuchi; A. Kim; B. I. Kim; D. H. Kim; D. J. Kim; E. J. Kim; Y.-J. Kim; Y.-S. Kim; E. Kinney; . Kiss; E. Kistenev; A. Kiyomichi; J. Klay; C. Klein-Boesing; L. Kochenda; V. Kochetkov; B. Komkov; M. Konno; J. Koster; D. Kotchetkov; D. Kotov; A. Kozlov; A. Krl; A. Kravitz; P. J. Kroon; J. Kubart; G. J. Kunde; N. Kurihara; K. Kurita; M. Kurosawa; M. J. Kweon; Y. Kwon; G. S. Kyle; R. Lacey; Y. S. Lai; J. G. Lajoie; A. Lebedev; Y. Le Bornec; S. Leckey; D. M. Lee; J. Lee; K. B. Lee; K. S. Lee; M. K. Lee; T. Lee; M. J. Leitch; M. A. L. Leite; B. Lenzi; P. Lichtenwalner; P. Liebing; H. Lim; L. A. Linden Levy; T. Liska; A. Litvinenko; H. Liu; M. X. Liu; X. Li; B. Love; D. Lynch; C. F. Maguire; Y. I. Makdisi; A. Malakhov; M. D. Malik; V. I. Manko; E. Mannel; Y. Mao; L. Masek; H. Masui; F. Matathias; M. C. McCain; M. McCumber; P. L. McGaughey; N. Means; B. Meredith; Y. Miake; T. Mibe; A. C. Mignerey; P. Mikes; K. Miki; T. E. Miller; A. Milov; S. Mioduszewski; G. C. Mishra; M. Mishra; J. T. Mitchell; M. Mitrovski; A. K. Mohanty; H. J. Moon; Y. Morino; A. Morreale; D. P. Morrison; J. M. Moss; T. V. Moukhanova; D. Mukhopadhyay; T. Murakami; J. Murata; S. Nagamiya; Y. Nagata; J. L. Nagle; M. Naglis; M. I. Nagy; I. Nakagawa; Y. Nakamiya; K. R. Nakamura; T. Nakamura; K. Nakano; S. Nam; J. Newby; M. Nguyen; M. Nihashi; B. E. Norman; R. Nouicer; A. S. Nyanin; J. Nystrand; C. Oakley; E. O'Brien; S. X. Oda; C. A. Ogilvie; H. Ohnishi; I. D. Ojha; K. Okada; M. Oka; O. O. Omiwade; Y. Onuki; A. Oskarsson; I. Otterlund; M. Ouchida; K. Ozawa; R. Pak; D. Pal; A. P. T. Palounek; V. Pantuev; V. Papavassiliou; I. H. Park; S. K. Park; W. J. Park; S. F. Pate; H. Pei; J.-C. Peng; H. Pereira; V. Peresedov; D. Yu. Peressounko; R. Petti; C. Pinkenburg; R. P. Pisani; M. Proissl; M. L. Purschke; A. K. Purwar; H. Qu; J. Rak; A. Rakotozafindrabe; I. Ravinovich; K. F. Read; S. Rembeczki; M. Reuter; K. Reygers; V. Riabov; Y. Riabov; E. Richardson; D. Roach

2011-01-01

190

Direct-Photon Production in Au+Au Collisions at RHIC  

E-print Network

Results from the PHENIX experiment on direct-photon production in Au+Au collisions at sqrt{s_{NN}} = 200 GeV for transverse momenta 1 photon yields at high p_T scale as expected for particle production in hard processes. This supports jet-quenching models which attribute the suppression of high-p_T hadrons to the energy loss of fast partons in the quark-gluon plasma. The low-p_T direct-photon spectra, measured via e+e- pairs with small invariant masses, are possibly related to the production of thermal direct photons in Au+Au collisions at RHIC.

Klaus Reygers; for the PHENIX Collaboration

2006-08-24

191

DFT study on cysteine adsorption mechanism on Au(111) and Au(110)  

SciTech Connect

Periodic density functional theory calculations were used to investigate relevant aspects of adsorption mechanisms of cysteine dimers in protonated form on Au(111) and Au(110) surfaces. The projected densities of states are explicitly discussed for all main chemical groups of cysteine, i.e. the amino group (NH2), the thiol group (SH) and the carboxylic group (COOH) to identify differences in adsorption mechanism. Special emphasis is put on the analysis of changes in the electronic structure of molecules adsorbed on Au(111) and Au(110) surfaces as well as the accompanying charge transfer mechanisms at molecule-substrate interaction.

Buimaga-Iarinca, Luiza; Floare, Calin G.; Calborean, Adrian; Turcu, Ioan [National Institute for Research and Development of Isotopic and Molecular Technologies, 65-103 Donath, 400293 Cluj-Napoca (Romania)] [National Institute for Research and Development of Isotopic and Molecular Technologies, 65-103 Donath, 400293 Cluj-Napoca (Romania)

2013-11-13

192

Catalytic Pt-on-Au nanostructures: why Pt becomes more active on smaller Au particles.  

PubMed

Platinum is a widely used precious metal in many catalytic nanostructures. Engineering the surface electronic structure of Pt-containing bi- or multimetallic nanostructure to enhance both the intrinsic activity and dispersion of Pt has remained a challenge. By constructing Pt-on-Au (Pt^Au) nanostructures using a series of monodisperse Au nanoparticles in the size range of 2-14 nm, we disclose herein a new approach to steadily change both properties of Pt in electrocatalysis with downsizing of the Au nanoparticles. A combined tuning of Pt dispersion and its surface electronic structure is shown as a consequence of the changes in the size and valence-band structure of Au, which leads to significantly enhanced Pt mass-activity on the small Au nanoparticles. Fully dispersed Pt entities on the smallest Au nanoparticles (2 nm) exhibit the highest mass-activity to date towards formic acid electrooxidation, being 2 orders of magnitude (75-300 folds) higher than conventional Pt/C catalyst. Fundamental relationships correlating the Pt intrinsic activity in Pt^Au nanostructures with the experimentally determined surface electronic structures (d-band center energies) of the Pt entities and their underlying Au nanoparticles are established. PMID:22324631

Zhang, Gui-Rong; Zhao, Dan; Feng, Yuan-Yuan; Zhang, Bingsen; Su, Dang Sheng; Liu, Gang; Xu, Bo-Qing

2012-03-27

193

Interplanetary magnetic clouds at 1 AU  

Microsoft Academic Search

Magnetic clouds are defined as regions;with a radial dimension roughly-equal0.25 AU (at 1 AU) in which the magnetic field strength is high and the magnetic field direction changes appreciably by means of rotation of one component of B> nearly parallel to a plane. The magnetic field geometry in such a magnetic cloud is consistent with that of a magnetic loop,

L. W. Klein; L. F. Burlaga

1982-01-01

194

HELOSE AU PARACLET, " SAGE " ET INCONSOLEE  

E-print Network

1 HELO�SE AU PARACLET, " SAGE " ET INCONSOLEE Le couple que form�rent H�lo�se et Ab�lard est bient�t fut b�ti un nouvel oratoire, en pierre, consacr� au Paraclet. Mais Ab�lard quitta cette t�te quand il fut d�l�gu� par le pape pour visiter le Paraclet, et le monast�re fut confirm� par le

Paris-Sud XI, Université de

195

Divalent gold in perovskite type CsAuI3  

Microsoft Academic Search

The distorted cesium gold iodide Cs2Au2I6 exhibits coexisting Au+ and Au3+ states at ambient conditions. The Mssbauer effect of 197Au at 12.5 GPa (4.2 K) shows, however, that only one intrinsic Au2+ state is present at high pressures, indicating a crystal structure of the ideal perovskite type as found previously from high pressure X-ray diffraction studies at 300 K. The

S. S. Hafner; N. Kojima; J. Stanek; Li Zhang

1994-01-01

196

Suppression of Upsilon Production in d+Au and Au+Au Collisions at sqrt(s_NN) = 200 GeV  

E-print Network

We report measurements of Upsilon meson production in p+p, d+Au, and Au+Au collisions using the STAR detector at RHIC. We compare the Upsilon yield to the measured cross section in p+p collisions in order to quantify any modifications of the yield in cold nuclear matter using d+Au data and in hot nuclear matter using Au+Au data separated into three centrality classes. Our p+p measurement is based on three times the statistics of our previous result. We obtain a nuclear modification factor for Upsilon(1S+2S+3S) in the rapidity range |y|<1 in d+Au collisions of R_dAu = 0.79 +/- 0.24 (stat.) +/- 0.03 (sys.) +/- 0.10 (pp sys.). A comparison with models including shadowing and initial state parton energy loss indicates the presence of additional cold-nuclear matter suppression. Similarly, in the top 10% most-central Au+Au collisions, we measure a nuclear modification factor of R_AA=0.49 +/- 0.1 (stat.) +/- 0.02 (sys.) +/- 0.06 (pp sys.), which is a larger suppression factor than that seen in cold nuclear matter. Our results are consistent with complete suppression of excited-state Upsilon mesons in Au+Au collisions. The additional suppression in Au+Au is consistent with the level expected in model calculations that include the presence of a hot, deconfined Quark-Gluon Plasma. However, understanding the suppression seen in d+Au is still needed before any definitive statements about the nature of the suppression in Au+Au can be made.

L. Adamczyk; J. K. Adkins; G. Agakishiev; M. M. Aggarwal; Z. Ahammed; I. Alekseev; J. Alford; C. D. Anson; A. Aparin; D. Arkhipkin; E. C. Aschenauer; G. S. Averichev; A. Banerjee; D. R. Beavis; R. Bellwied; A. Bhasin; A. K. Bhati; P. Bhattarai; H. Bichsel; J. Bielcik; J. Bielcikova; L. C. Bland; I. G. Bordyuzhin; W. Borowski; J. Bouchet; A. V. Brandin; S. G. Brovko; S. Bltmann; I. Bunzarov; T. P. Burton; J. Butterworth; H. Caines; M. Caldern de la Barca Snchez; D. Cebra; R. Cendejas; M. C. Cervantes; P. Chaloupka; Z. Chang; S. Chattopadhyay; H. F. Chen; J. H. Chen; L. Chen; J. Cheng; M. Cherney; A. Chikanian; W. Christie; J. Chwastowski; M. J. M. Codrington; G. Contin; J. G. Cramer; H. J. Crawford; X. Cui; S. Das; A. Davila Leyva; L. C. De Silva; R. R. Debbe; T. G. Dedovich; J. Deng; A. A. Derevschikov; R. Derradi de Souza; S. Dhamija; B. di Ruzza; L. Didenko; C. Dilks; F. Ding; P. Djawotho; X. Dong; J. L. Drachenberg; J. E. Draper; C. M. Du; L. E. Dunkelberger; J. C. Dunlop; L. G. Efimov; J. Engelage; K. S. Engle; G. Eppley; L. Eun; O. Evdokimov; R. Fatemi; S. Fazio; J. Fedorisin; P. Filip; E. Finch; Y. Fisyak; C. E. Flores; C. A. Gagliardi; D. R. Gangadharan; D. Garand; F. Geurts; A. Gibson; M. Girard; S. Gliske; L. Greiner; D. Grosnick; Y. Guo; A. Gupta; S. Gupta; W. Guryn; B. Haag; O. Hajkova; A. Hamed; L-X. Han; R. Haque; J. W. Harris; S. Heppelmann; K. Hill; A. Hirsch; G. W. Hoffmann; D. J. Hofman; S. Horvat; B. Huang; H. Z. Huang; X. Huang; P. Huck; T. J. Humanic; G. Igo; W. W. Jacobs; H. Jang; E. G. Judd; S. Kabana; D. Kalinkin; K. Kang; K. Kauder; H. W. Ke; D. Keane; A. Kechechyan; A. Kesich; Z. H. Khan; D. P. Kikola; I. Kisel; A. Kisiel; D. D. Koetke; T. Kollegger; J. Konzer; I. Koralt; L. Kotchenda; P. Kravtsov; K. Krueger; I. Kulakov; L. Kumar; R. A. Kycia; M. A. C. Lamont; J. M. Landgraf; K. D. Landry; J. Lauret; A. Lebedev; R. Lednicky; J. H. Lee; M. J. LeVine; C. Li; W. Li; X. Li; X. Li; Y. Li; Z. M. Li; L. M. Lima; M. A. Lisa; F. Liu; T. Ljubicic; W. J. Llope; M. Lomnitz; R. S. Longacre; X. Luo; G. L. Ma; Y. G. Ma; D. M. M. D. Madagodagettige Don; D. P. Mahapatra; R. Majka; S. Margetis; C. Markert; H. Masui; H. S. Matis; D. McDonald; T. S. McShane; N. G. Minaev; S. Mioduszewski; B. Mohanty; M. M. Mondal; D. A. Morozov; M. G. Munhoz; M. K. Mustafa; B. K. Nandi; Md. Nasim; T. K. Nayak; J. M. Nelson; G. Nigmatkulov; L. V. Nogach; S. Y. Noh; J. Novak; S. B. Nurushev; G. Odyniec; A. Ogawa; K. Oh; A. Ohlson; V. Okorokov; E. W. Oldag; R. A. N. Oliveira; M. Pachr; B. S. Page; S. K. Pal; Y. X. Pan; Y. Pandit; Y. Panebratsev; T. Pawlak; B. Pawlik; H. Pei; C. Perkins; W. Peryt; A. Peterson; P. Pile; M. Planinic; J. Pluta; N. Poljak; J. Porter; A. M. Poskanzer; N. K. Pruthi; M. Przybycien; P. R. Pujahari; J. Putschke; H. Qiu; A. Quintero; S. Ramachandran; R. Raniwala; S. Raniwala; R. L. Ray; C. K. Riley; H. G. Ritter; J. B. Roberts; O. V. Rogachevskiy; J. L. Romero; J. F. Ross; A. Roy; L. Ruan; J. Rusnak; N. R. Sahoo; P. K. Sahu; I. Sakrejda; S. Salur; J. Sandweiss; E. Sangaline; A. Sarkar; J. Schambach; R. P. Scharenberg; A. M. Schmah; W. B. Schmidke; N. Schmitz; J. Seger; P. Seyboth; N. Shah; E. Shahaliev; P. V. Shanmuganathan; M. Shao; B. Sharma; W. Q. Shen; S. S. Shi; Q. Y. Shou; E. P. Sichtermann; R. N. Singaraju; M. J. Skoby; D. Smirnov; N. Smirnov; D. Solanki; P. Sorensen; U. G. deSouza; H. M. Spinka; B. Srivastava; T. D. S. Stanislaus; J. R. Stevens; R. Stock; M. Strikhanov; B. Stringfellow; A. A. P. Suaide; M. Sumbera; X. Sun; X. M. Sun; Y. Sun; Z. Sun; B. Surrow; D. N. Svirida; T. J. M. Symons; A. Szanto de Toledo; M. A. Szelezniak; J. Takahashi; A. H. Tang; Z. Tang; T. Tarnowsky; J. H. Thomas; A. R. Timmins; D. Tlusty; M. Tokarev; S. Trentalange; R. E. Tribble; P. Tribedy; B. A. Trzeciak; O. D. Tsai; J. Turnau; T. Ullrich; D. G. Underwood; G. Van Buren; G. van Nieuwenhuizen; J. A. Vanfossen, Jr.; R. Varma; G. M. S. Vasconcelos; A. N. Vasiliev; R. Vertesi; F. Videbk; Y. P. Viyogi; S. Vokal; A. Vossen; M. Wada; F. Wang; G. Wang; H. Wang; J. S. Wang; X. L. Wang; Y. Wang; Y. Wang; G. Webb; J. C. Webb; G. D. Westfall; H. Wieman; G. Wimsatt; S. W. Wissink; R. Witt; Y. F. Wu; Z. Xiao; W. Xie; K. Xin; H. Xu; J. Xu; N. Xu; Q. H. Xu; Y. Xu; Z. Xu; W. Yan; C. Yang; Y. Yang; Y. Yang; Z. Ye; P. Yepes; L. Yi; K. Yip; I-K. Yoo; N. Yu; Y. Zawisza; H. Zbroszczyk; W. Zha; J. B. Zhang; J. L. Zhang; S. Zhang; X. P. Zhang; Y. Zhang; Z. P. Zhang; F. Zhao; J. Zhao; C. Zhong; X. Zhu; Y. H. Zhu; Y. Zoulkarneeva; M. Zyzak

2013-12-12

197

Metallurgical comparison of Au and Au:An:Au contacts on InGaAs, InGaAsP layers  

NASA Astrophysics Data System (ADS)

A metallurgical study of the interaction between Au and InGaAs, InGaAsP and the role of the dopant (Zn) in this interaction has been conducted using TEM, AES and x-ray diffraction. Au alloyed with InGaAs reveals a single layer of large and rounded grains (2000 in diameter). However, alloyed Au:Zn:Au on InGaAs and InGaAsP forms a continuous chain of spikes penetrating into the semiconductor. This spike morphology produces enhanced local current densities across the contact, and may affect laser reliability. A study of the kinetics of the interaction between the Au layer and InGaAs, reveals two major stages. The first stage is dominated by In out-diffusion and Au-rich Au4In compound formation. In the second stage of the interaction, the Au-rich Au4In compound starts to dissolve and Au7In3, Au2Ga and Au3P2 (in the case of the quaternary layer) are formed. At certain temperatures, the presence of Zn in the Au layer shortens the time required for completing the first stage and beginning the second stage of the interaction. A thermal stability study reveals metallurgical instability at low tempeature (200 C) which does not reach completion even after alloying at 400 C for 4 hr.

Appelbaum, A.; Thomas, P. M.

1989-01-01

198

Systematic measurements of identified particle spectra in pp, d+Au, and Au+Au collisions at the STAR detector  

NASA Astrophysics Data System (ADS)

Identified charged-particle spectra of ?, K, p, and pmacr at midrapidity (|y|<0.1) measured by the dE/dx method in the STAR (solenoidal tracker at the BNL Relativistic Heavy Ion Collider) time projection chamber are reported for pp and d+Au collisions at sNN=200 GeV and for Au+Au collisions at 62.4, 130, and 200 GeV. Average transverse momenta, total particle production, particle yield ratios, strangeness, and baryon production rates are investigated as a function of the collision system and centrality. The transverse momentum spectra are found to be flatter for heavy particles than for light particles in all collision systems; the effect is more prominent for more central collisions. The extracted average transverse momentum of each particle species follows a trend determined by the total charged-particle multiplicity density. The Bjorken energy density estimate is at least several GeV/fm3 for a formation time less than 1 fm/c. A significantly larger net-baryon density and a stronger increase of the net-baryon density with centrality are found in Au+Au collisions at 62.4 GeV than at the two higher energies. Antibaryon production relative to total particle multiplicity is found to be constant over centrality, but increases with the collision energy. Strangeness production relative to total particle multiplicity is similar at the three measured RHIC energies. Relative strangeness production increases quickly with centrality in peripheral Au+Au collisions, to a value about 50% above the pp value, and remains rather constant in more central collisions. Bulk freeze-out properties are extracted from thermal equilibrium model and hydrodynamics-motivated blast-wave model fits to the data. Resonance decays are found to have little effect on the extracted kinetic freeze-out parameters because of the transverse momentum range of our measurements. The extracted chemical freeze-out temperature is constant, independent of collision system or centrality; its value is close to the predicted phase-transition temperature, suggesting that chemical freeze-out happens in the vicinity of hadronization and the chemical freeze-out temperature is universal despite the vastly different initial conditions in the collision systems. The extracted kinetic freeze-out temperature, while similar to the chemical freeze-out temperature in pp, d+Au, and peripheral Au+Au collisions, drops significantly with centrality in Au+Au collisions, whereas the extracted transverse radial flow velocity increases rapidly with centrality. There appears to be a prolonged period of particle elastic scatterings from chemical to kinetic freeze-out in central Au+Au collisions. The bulk properties extracted at chemical and kinetic freeze-out are observed to evolve smoothly over the measured energy range, collision systems, and collision centralities.

Abelev, B. I.; Aggarwal, M. M.; Ahammed, Z.; Anderson, B. D.; Arkhipkin, D.; Averichev, G. S.; Bai, Y.; Balewski, J.; Barannikova, O.; Barnby, L. S.; Baudot, J.; Baumgart, S.; Beavis, D. R.; Bellwied, R.; Benedosso, F.; Betts, R. R.; Bhardwaj, S.; Bhasin, A.; Bhati, A. K.; Bichsel, H.; Bielcik, J.; Bielcikova, J.; Biritz, B.; Bland, L. C.; Bombara, M.; Bonner, B. E.; Botje, M.; Bouchet, J.; Braidot, E.; Brandin, A. V.; Bruna, E.; Bueltmann, S.; Burton, T. P.; Bystersky, M.; Cai, X. Z.; Caines, H.; Snchez, M. Caldern De La Barca; Callner, J.; Catu, O.; Cebra, D.; Cendejas, R.; Cervantes, M. C.; Chajecki, Z.; Chaloupka, P.; Chattopadhyay, S.; Chen, H. F.; Chen, J. H.; Chen, J. Y.; Cheng, J.; Cherney, M.; Chikanian, A.; Choi, K. E.; Christie, W.; Chung, S. U.; Clarke, R. F.; Codrington, M. J. M.; Coffin, J. P.; Cormier, T. M.; Cosentino, M. R.; Cramer, J. G.; Crawford, H. J.; Das, D.; Dash, S.; Daugherity, M.; Silva, C. De; Dedovich, T. G.; Dephillips, M.; Derevschikov, A. A.; de Souza, R. Derradi; Didenko, L.; Djawotho, P.; Dogra, S. M.; Dong, X.; Drachenberg, J. L.; Draper, J. E.; Du, F.; Dunlop, J. C.; Mazumdar, M. R. Dutta; Edwards, W. R.; Efimov, L. G.; Elhalhuli, E.; Elnimr, M.; Emelianov, V.; Engelage, J.; Eppley, G.; Erazmus, B.; Estienne, M.; Eun, L.; Fachini, P.; Fatemi, R.; Fedorisin, J.; Feng, A.; Filip, P.; Finch, E.; Fine, V.; Fisyak, Y.; Gagliardi, C. A.; Gaillard, L.; Gangadharan, D. R.; Ganti, M. S.; Garcia-Solis, E.; Ghazikhanian, V.; Ghosh, P.; Gorbunov, Y. N.; Gordon, A.; Grebenyuk, O.; Grosnick, D.; Grube, B.; Guertin, S. M.; Guimaraes, K. S. F. F.; Gupta, A.; Gupta, N.; Guryn, W.; Haag, B.; Hallman, T. J.; Hamed, A.; Harris, J. W.; He, W.; Heinz, M.; Heppelmann, S.; Hippolyte, B.; Hirsch, A.; Hjort, E.; Hoffman, A. M.; Hoffmann, G. W.; Hofman, D. J.; Hollis, R. S.; Huang, H. Z.; Humanic, T. J.; Igo, G.; Iordanova, A.; Jacobs, P.; Jacobs, W. W.; Jakl, P.; Jin, F.; Jones, P. G.; Joseph, J.; Judd, E. G.; Kabana, S.; Kajimoto, K.; Kang, K.; Kapitan, J.; Kaplan, M.; Keane, D.; Kechechyan, A.; Kettler, D.; Khodyrev, V. Yu.; Kiryluk, J.; Kisiel, A.; Klein, S. R.; Knospe, A. G.; Kocoloski, A.; Koetke, D. D.; Kopytine, M.; Kotchenda, L.; Kouchpil, V.; Kravtsov, P.; Kravtsov, V. I.; Krueger, K.; Krus, M.; Kuhn, C.; Kumar, L.; Kurnadi, P.; Lamont, M. A. C.; Landgraf, J. M.; Lapointe, S.; Lauret, J.; Lebedev, A.; Lednicky, R.; Lee, C.-H.; Levine, M. J.; Li, C.; Li, Y.; Lin, G.; Lin, X.; Lindenbaum, S. J.; Lisa, M. A.; Liu, F.; Liu, H.; Liu, J.; Liu, L.; Ljubicic, T.; Llope, W. J.; Longacre, R. S.; Love, W. A.; Lu, Y.; Ludlam, T.; Lynn, D.; Ma, G. L.; Ma, Y. G.; Mahapatra, D. P.; Majka, R.; Mall, O. I.; Mangotra, L. K.; Manweiler, R.; Margetis, S.; Markert, C.; Matis, H. S.; Matulenko, Yu. A.; McShane, T. S.; Meschanin, A.; Millane, J.; Miller, M. L.; Minaev, N. G.; Mioduszewski, S.; Mischke, A.; Mitchell, J.; Mohanty, B.; Molnar, L.; Morozov, D. A.; Munhoz, M. G.; Nandi, B. K.; Nattrass, C.; Nayak, T. K.; Nelson, J. M.; Nepali, C.; Netrakanti, P. K.; Ng, M. J.; Nogach, L. V.; Nurushev, S. B.; Odyniec, G.; Ogawa, A.; Okada, H.; Okorokov, V.; Olson, D.; Pachr, M.; Page, B. S.; Pal, S. K.; Pandit, Y.; Panebratsev, Y.; Pawlak, T.; Peitzmann, T.; Perevoztchikov, V.; Perkins, C.; Peryt, W.; Phatak, S. C.; Planinic, M.; Pluta, J.; Poljak, N.; Poskanzer, A. M.; Potukuchi, B. V. K. S.; Prindle, D.; Pruneau, C.; Pruthi, N. K.; Putschke, J.; Raniwala, R.; Raniwala, S.; Ray, R. L.; Reed, R.; Ridiger, A.; Ritter, H. G.; Roberts, J. B.; Rogachevskiy, O. V.; Romero, J. L.; Rose, A.; Roy, C.; Ruan, L.; Russcher, M. J.; Rykov, V.; Sahoo, R.; Sakrejda, I.; Sakuma, T.; Salur, S.; Sandweiss, J.; Sarsour, M.; Schambach, J.; Scharenberg, R. P.; Schmitz, N.; Seger, J.; Selyuzhenkov, I.; Seyboth, P.; Shabetai, A.; Shahaliev, E.; Shao, M.; Sharma, M.; Shi, S. S.; Shi, X.-H.; Sichtermann, E. P.; Simon, F.; Singaraju, R. N.; Skoby, M. J.; Smirnov, N.; Snellings, R.; Sorensen, P.; Sowinski, J.; Spinka, H. M.; Srivastava, B.; Stadnik, A.; Stanislaus, T. D. S.; Staszak, D.; Strikhanov, M.; Stringfellow, B.; Suaide, A. A. P.; Suarez, M. C.; Subba, N. L.; Sumbera, M.; Sun, X. M.; Sun, Y.; Sun, Z.; Surrow, B.; Symons, T. J. M.; de Toledo, A. Szanto; Takahashi, J.; Tang, A. H.; Tang, Z.; Tarnowsky, T.; Thein, D.; Thomas, J. H.; Tian, J.; Timmins, A. R.; Timoshenko, S.; Tlusty, D.; Tokarev, M.; Tram, V. N.; Trattner, A. L.; Trentalange, S.; Tribble, R. E.; Tsai, O. D.; Ulery, J.; Ullrich, T.; Underwood, D. G.; Buren, G. Van; van Leeuwen, M.; Molen, A. M. Vander; Vanfossen, J. A., Jr.; Varma, R.; Vasconcelos, G. M. S.; Vasilevski, I. M.; Vasiliev, A. N.; Videbaek, F.; Vigdor, S. E.; Viyogi, Y. P.; Vokal, S.; Voloshin, S. A.; Wada, M.; Waggoner, W. T.; Wang, F.; Wang, G.; Wang, J. S.; Wang, Q.; Wang, X.

2009-03-01

199

IMMIGRATION OF FISHES THROUGH THE SUEZ CANAL  

Microsoft Academic Search

ABSTRACT The number,of Red Sea fishes found in the eastern Mediterranean,amounts,to 36 species. Twelve immigrants, namely: Spratelloides delicatulus, Herklotsichthyspunctatus, Tylosurus choram, Sebas tapistes nuchalis, Epinephelus tauvina, Autisthesputa, Pelates quadrilineatus,Silago sihama, Rhon sicusstridens,Crenidenscrenidens,Rastrelligerkanagurta,Scomberomoruscommerson,were found in the last 12 yr. The southward migration, from the Mediterranean to the Red Sea is almost negligible. Only Liza aurata, Dicentrarchuspunctatus, and perhaps Carcharhinusplumbeus can be

Adam Bentuvia

200

a Procedure for Gold Soldering Using a Si-Au Alloy Produced by si Implantation in Au  

Microsoft Academic Search

Pure polycrystalline Au foils were rolled at room temperature to a thickness of 35 mum. Different doses of high energy Si ions (0.2-4.5 MeV) obtained from the 2 MV Tandetron accelerator at LARN were implanted in polycrystalline Au foils to produce a low melting point Au-Si alloy. Au-Si eutectic structure has been observed in the implanted Au foils after annealing

V. John Kennedy; G. Terwagne; G. Demortier

2001-01-01

201

The work functions of Au/Mg decorated Au(100), Mg(001), and AuMg alloy surfaces: a theoretical study.  

PubMed

A plane-wave density functional theory is used to predict the work functions of Au/Mg decorated Au(100), Mg(001), and stochiometric AuMg alloy surfaces. We find, that irrespective of the details, all Au/Mg systems containing Mg on the surface reveal the Mg-dominated work functions, i.e., significantly shifted toward the work function of clean Mg(001) surface. The reported analyses suggest, that this general trend stems from a strong charge transfer from Mg to Au and consequent enhancement of a surface dipole. The calculated properties of the AuMg alloy well agree to the experiment. The reported results may readily find applications in Au/Mg/AuMg surface physics and technology of metal/semiconductor contacts. PMID:25194384

Dubeck, Mat; Dubeck, Frantiek

2014-09-01

202

The work functions of Au/Mg decorated Au(100), Mg(001), and AuMg alloy surfaces: A theoretical study  

NASA Astrophysics Data System (ADS)

A plane-wave density functional theory is used to predict the work functions of Au/Mg decorated Au(100), Mg(001), and stochiometric AuMg alloy surfaces. We find, that irrespective of the details, all Au/Mg systems containing Mg on the surface reveal the Mg-dominated work functions, i.e., significantly shifted toward the work function of clean Mg(001) surface. The reported analyses suggest, that this general trend stems from a strong charge transfer from Mg to Au and consequent enhancement of a surface dipole. The calculated properties of the AuMg alloy well agree to the experiment. The reported results may readily find applications in Au/Mg/AuMg surface physics and technology of metal/semiconductor contacts.

Dubeck, Mat; Dubeck, Frantiek

2014-09-01

203

Synthesis and X-ray structures of silver and gold guanidinate-like complexes. A Au(II) complex with a 2.47 AuAu distance  

E-print Network

Synthesis and X-ray structures of silver and gold guanidinate-like complexes. A Au(II) complex report here the dinuclear gold(II) complex, [Au2(hpp)2Cl2], 1, which has the shortest Au­Au bond distance reported, [Cu2(hpp)2] (Cu­Cu = 2.453(1) ?),6 and the gold(II) complex reported here. The relative roles

Abdou, Hanan E.

204

Influence of Citric and Ascorbic Acids on Electrodeposited Au/FeAu Multilayer Nanowires  

E-print Network

Influence of Citric and Ascorbic Acids on Electrodeposited Au/FeAu Multilayer Nanowires S. Lucatero and current efficiency behavior when citric acid, ascorbic acid, or a combination of both is present, but the porosity decreased with the addition of ascorbic acid in the electrolyte. Comparatively higher side

Sridhar, Srinivas

205

The extraction characteristic of Au-Ag from Au concentrate by thiourea solution  

NASA Astrophysics Data System (ADS)

The cyanidation process has been used commercially for the past 100 years, there are ores that are not amenable to treatment by cyanide. Interest in alternative lixiviants, such as thiourea, halogens, thiosulfate and malononitrile, has been revived as a result of a major increase in gold price, which has stimulated new developments in extraction technology, combined with environmental concern. The Au extraction process using the thiourea solvent has many advantages over the cyanidation process, including higher leaching rates, faster extraction time and less than toxicity. The purpose of this study was investigated to the extraction characteristic of Au-Ag from two different Au concentrate (sulfuric acid washing and roasting) under various experiment conditions (thiourea concentration, pH of solvent, temperature) by thiourea solvent. The result of extraction experiment showed that the Au-Ag extraction was a fast extraction process, reaching equilibrium (maximum extraction rate) within 30 min. The Au-Ag extraction rate was higher in the roasted concentrate than in the sulfuric acid washing. The higher the Au-Ag extraction rate (Au - 70.87%, Ag - 98.12%) from roasted concentrate was found when the more concentration of thiourea increased, pH decreased and extraction temperature increased. This study informs extraction method basic knowledge when thiourea was a possibility to eco-/economic resources of Au-Ag utilization studies including the hydrometallurgy.

Kim, Bongju; Cho, Kanghee; On, Hyunsung; Choi, Nagchoul; Park, Cheonyoung

2013-04-01

206

Tunable and augmented plasmon resonances of Au\\/SiO2\\/Au nanodisks  

Microsoft Academic Search

The plasmon resonance of Au\\/SiO2 multilayered nanodisks was studied using light scattering spectroscopy and numerical calculations. Compared to single layered Au nanodisks, multilayered nanodisks exhibit several distinctive properties including significantly enhanced plasmon resonances and tunable resonance wavelengths which can be tailored to desired values by simply varying dielectric layer thickness while the particle diameter is kept constant. Numerical calculations show

K. H. Su; Q. H. Wei; X. Zhang

2006-01-01

207

Nuclear stopping in Au+Au collisions at root s(NN) = 200 GeV  

E-print Network

Transverse momentum spectra and rapidity densities, dN/dy, of protons, antiprotons, and net protons (p-(p) over bar) from central (0%-5%) Au+Au collisions at roots(NN)=200 GeV were measured with the BRAHMS experiment within the rapidity range 0less...

Ito, H.; Kim, E. J.; Murray, Michael J.; Norris, J.; Sanders, Stephen J.

2004-09-01

208

Using supported Au nanoparticles as starting material for preparing uniform Au/Pd bimetallic catalysts  

SciTech Connect

One of the best methods for producing bulk homogeneous (composition) supported bimetallic AuPd clusters involves the immobilization of a protected Au seed followed by the addition of Pd. This paper investigates the importance of this gold seed in controlling the resulting bimetallic AuPd clusters structures, sizes and catalytic activities by investigating three different gold seeds. Uniform Au-Pd alloy were obtained when a steric/electrostatic protecting group, poly(vinyl alcohol) (PVA), was used to form the gold clusters on activated carbon (AC). In contrast Au/AC precursors prepared using Au nanoparticles with only electrostatic stabilization (tetrakis(hydroxypropyl)phosphonium chloride (THPC)), or no stabilization (magnetron sputtering) produced inhomogeneous alloys and segregation of the gold and palladium. The uniform alloyed catalyst (Pd{at}Au{sub PVA}/AC) is the most active and selective catalyst, while the inhomogenous catalysts are less active and selective. Further study of the PVA protected Au clusters revealed that the amount of PVA used is also critical for the preparation of uniform alloyed catalyst, their stability, and their catalytic activity.

Villa, Alberto [Universita di Milano, Italy; Prati, Laura [Universita di Milano, Italy; Su, Dangshen [Fritz Haber Institute of the Max Planck Society, Berlin, Germany; Wang, Di [Fritz Haber Institute of the Max Planck Society, Berlin, Germany; Veith, Gabriel M [ORNL

2010-01-01

209

Identified hadron transverse momentum spectra in Au+Au collisions at  

E-print Network

energy loss (dE/dx) in the silicon Spectrometer, and Time-of-Flight measurement. These methods cover of collision energy. At low transverse mass, the spectra of various species exhibit a significant deviationIdentified hadron transverse momentum spectra in Au+Au collisions at sNN =62.4 GeV B.B.Back,1 M

210

Microstructure and Interdiffusion of Template-Synthesized Au/Sn/Au  

E-print Network

and Sn in porous polycarbonate membranes were investigated by X-ray diffraction, HRTEM, STEM, EDS tube cell with two electrodes was used for electrodeposition, which was carried out potentio- statically at ambient temperature. Au was deposited first using a commercial Orotemp Au plating solution

211

Azimuthal di-hadron correlations in d+ Au and Au?+?Au collisions at ?sNN=200 GeV measured at the STAR detector  

E-print Network

Yields, correlation shapes, and mean transverse momenta pT [rho tau] of charged particles associated with intermediate- to high-pT [rho tau] trigger particles (2.5Au and Au?+?Au collisions at ...

Balewski, Jan T.

212

Balance functions from Au+Au, d+Au, and p+p collisions at ?sNN=200 GeV  

E-print Network

Balance functions have been measured for charged-particle pairs, identified charged-pion pairs, and identified charged-kaon pairs in Au+Au, d+Au, and p+p collisions at [square root]?sNN=200 GeV at the Relativistic Heavy ...

Balewski, Jan T.

213

Azimuthal di-hadron correlations in d plus Au and Au plus Au collisions at root s(NN)=200 GeV measured at the STAR detector  

E-print Network

Yields, correlation shapes, and mean transverse momenta p(T) of charged particles associated with intermediate-to high-p(T) trigger particles (2.5 < p(T) < 10 GeV/c) in d + Au and Au + Au collisions at root s(NN) = 200 GeV are presented...

Aggarwal, M. M.; Ahammed, Z.; Alakhverdyants, A. V.; Alekseev, I.; Alford, J.; Anderson, B. D.; Arkhipkin, D.; Averichev, G. S.; Balewski, J.; Barnby, L. S.; Baumgart, S.; Beavis, D. R.; Bellwied, R.; Betancourt, M. J.; Betts, R. R.; Bhasin, A.; Bhati, A. K.; Bichsel, H.; Bielcik, J.; Bielcikova, J.; Biritz, B.; Bland, L. C.; Bonner, B. E.; Bouchet, J.; Braidot, E.; Brandin, A. V.; Bridgeman, A.; Bruna, E.; Bueltmann, S.; Bunzarov, I.; Burton, T. P.; Cai, X. Z.; Caines, H.; Sanchez, M. Calderon de la Barca; Catu, O.; Cebra, D.; Cendejas, R.; Cervantes, M. C.; Chajecki, Z.; Chaloupka, P.; Chattopadhyay, S.; Chen, H. F.; Chen, J. H.; Chen, J. Y.; Cheng, J.; Cherney, M.; Chikanian, A.; Choi, K. E.; Christie, W.; Chung, P.; Clarke, R. F.; Codrington, M. J. M.; Corliss, R.; Cramer, J. G.; Crawford, H. J.; Das, D.; Dash, S.; Leyva, A. Davila; De Silva, L. C.; Debbe, R. R.; Dedovich, T. G.; Derevschikov, A. A.; de Souza, R. Derradi; Didenko, L.; Djawotho, P.; Dogra, S. M.; Dong, X.; Drachenberg, J. L.; Draper, J. E.; Dunlop, J. C.; Mazumdar, M. R. Dutta; Efimov, L. G.; Elhalhuli, E.; Elnimr, M.; Engelage, J.; Eppley, G.; Erazmus, B.; Estienne, M.; Eun, L.; Evdokimov, O.; Fachini, P.; Fatemi, R.; Fedorisin, J.; Fersch, R. G.; Filip, P.; Finch, E.; Fine, V.; Fisyak, Y.; Gagliardi, Carl A.; Gangadharan, D. R.; Ganti, M. S.; Garcia-Solis, E. J.; Geromitsos, A.; Geurts, F.; Ghazikhanian, V.; Ghosh, P.; Gorbunov, Y. N.; Gordon, A.; Grebenyuk, O.; Grosnick, D.; Guertin, S. M.; Gupta, A.; Gupta, N.; Guryn, W.; Haag, B.; Hamed, A.; Han, L. -X; Harris, J. W.; Hays-Wehle, J. P.; Heinz, M.; Heppelmann, S.; Hirsch, A.; Hjort, E.; Hoffman, A. M.; Hoffmann, G. W.; Hofman, D. J.; Horner, M. J.; Huang, B.; Huang, H. Z.; Humanic, T. J.; Huo, L.; Igo, G.; Jacobs, P.; Jacobs, W. W.; Jena, C.; Jin, F.; Jones, C. L.; Jones, P. G.; Joseph, J.; Judd, E. G.; Kabana, S.; Kajimoto, K.; Kang, K.; Kapitan, J.; Kauder, K.; Keane, D.; Kechechyan, A.; Kettler, D.; Kikola, D. P.; Kiryluk, J.; Kisiel, A.; Klein, S. R.; Knospe, A. G.; Kocoloski, A.; Koetke, D. D.; Kollegger, T.; Konzer, J.; Koralt, I.; Koroleva, L.; Korsch, W.; Kotchenda, L.; Kouchpil, V.; Kravtsov, P.; Krueger, K.; Krus, M.; Kumar, L.; Kurnadi, P.; Lamont, M. A. C.; Landgraf, J. M.; LaPointe, S.; Lauret, J.; Lebedev, A.; Lednicky, R.; Lee, C. -H; Lee, J. H.; Leight, W.; LeVine, M. J.; Li, C.; Li, L.; Li, N.; Li, W.; Li, X.; Li, X.; Li, Y.; Li, Z. M.; Lin, G.; Lindenbaum, S. J.; Lisa, M. A.; Liu, F.; Liu, H.; Liu, J.; Ljubicic, T.; Llope, W. J.; Longacre, R. S.; Love, W. A.; Lu, Y.; Luo, X.; Ma, G. L.; Ma, Y. G.; Mahapatra, D. P.; Majka, R.; Mall, O. I.; Mangotra, L. K.; Manweiler, R.; Margetis, S.; Markert, C.; Masui, H.; Matis, H. S.; Matulenko, Yu A.; McDonald, D.; McShane, T. S.; Meschanin, A.; Milner, R.; Minaev, N. G.; Mioduszewski, Saskia; Mischke, A.; Mitrovski, M. K.; Mohanty, B.; Mondal, M. M.; Morozov, B.; Morozov, D. A.; Munhoz, M. G.; Nandi, B. K.; Nattrass, C.; Nayak, T. K.; Nelson, J. M.; Netrakanti, P. K.; Ng, M. J.; Nogach, L. V.; Nurushev, S. B.; Odyniec, G.; Ogawa, A.; Okorokov, V.; Oldag, E. W.; Olson, D.; Pachr, M.; Page, B. S.; Pal, S. K.; Pandit, Y.; Panebratsev, Y.; Pawlak, T.; Peitzmann, T.; Perevoztchikov, V.; Perkins, C.; Peryt, W.; Phatak, S. C.; Pile, P.; Planinic, M.; Ploskon, M. A.; Pluta, J.; Plyku, D.; Poljak, N.; Poskanzer, A. M.; Potukuchi, B. V. K. S.; Powell, C. B.; Prindle, D.; Pruneau, C.; Pruthi, N. K.; Pujahari, P. R.; Putschke, J.; Raniwala, R.; Raniwala, S.; Ray, R. L.; Redwine, R.; Reed, R.; Ritter, H. G.; Roberts, J. B.; Rogachevskiy, O. V.; Romero, J. L.; Rose, A.; Roy, C.; Ruan, L.; Sahoo, R.; Sakai, S.; Sakrejda, I.; Sakuma, T.; Salur, S.; Sandweiss, J.; Sangaline, E.; Schambach, J.; Scharenberg, R. P.; Schmitz, N.; Schuster, T. R.; Seele, J.; Seger, J.; Selyuzhenkov, I.; Seyboth, P.; Shahaliev, E.; Shao, M.; Sharma, M.; Shi, S. S.; Sichtermann, E. P.; Simon, F.; Singaraju, R. N.; Skoby, M. J.; Smirnov, N.; Sorensen, P.; Sowinski, J.; Spinka, H. M.; Srivastava, B.; Stanislaus, T. D. S.; Staszak, D.; Stevens, J. R.; Stock, R.; Strikhanov, M.; Stringfellow, B.; Suaide, A. A. P.; Suarez, M. C.; Subba, N. L.; Sumbera, M.; Sun, X. M.; Sun, Y.; Sun, Z.; Surrow, B.; Svirida, D. N.; Symons, T. J. M.; de Toledo, A. Szanto; Takahashi, J.; Tang, A. H.; Tang, Z.; Tarini, L. H.; Tarnowsky, T.; Thein, D.; Thomas, J. H.; Tian, J.; Timmins, A. R.; Timoshenko, S.; Tlusty, D.; Tokarev, M.; Trainor, T. A.; Tram, V. N.; Trentalange, S.; Tribble, Robert E.; Tsai, O. D.; Ulery, J.; Ullrich, T.; Underwood, D. G.; Van Buren, G.; van Leeuwen, M.; van Nieuwenhuizen, G.; Vanfossen, J. A., Jr.; Varma, R.; Vasconcelos, G. M. S.; Vasiliev, A. N.; Videbaek, F.; Viyogi, Y. P.; Vokal, S.; Voloshin, S. A.; Wada, M.; Walker, M.; Wang, F.; Wang, G.

2010-01-01

214

Wafer-level Au-Au bonding in the 350-450 C temperature range  

NASA Astrophysics Data System (ADS)

Metal thermocompression bonding is a hermetic wafer-level packaging technology that facilitates vertical integration and shrinks the area used for device sealing. In this paper, Au-Au bonding at 350, 400 and 450 C has been investigated, bonding wafers with 1 m Au on top of 200 nm TiW. Test Si laminates with device sealing frames of 100, 200, and 400 m in width were realized. Bond strengths measured by pull tests ranged from 8 to 102 MPa and showed that the bond strength increased with higher bonding temperatures and decreased with increasing frame width. Effects of eutectic reactions, grain growth in the Au film and stress relaxation causing buckles in the TiW film were most pronounced at 450 C and negligible at 350 C. Bond temperature below the Au-Si eutectic temperature 363 C is recommended.

Tofteberg, Hannah R.; Schjlberg-Henriksen, Kari; Fasting, Eivind J.; Moen, Alexander S.; Taklo, Maaike M. V.; Poppe, Erik U.; Simensen, Christian J.

2014-08-01

215

Chemisorption of methyl mercaptane on titania-supported Au nanoparticles: Viability of Au surface area determination.  

PubMed

Well-characterized Au nanoparticles were deposited on commercial TiO(2) (P25, Degussa) and analyzed by means of STEM and thermogravimetry coupled with mass spectrometry (TG-MS). The adsorption was studied on Au/TiO(2) samples with Au loadings in the range of 1.1-9.9wt.% by injecting pulses of CH(3)SH (methyl mercaptane, MM) until no further mass increase could be observed. A prerequisite for determination of the surface area of the deposited gold nanoparticles is the proper discrimination of species adsorbing on the Au nanoparticles and the titania support. The adsorption of methyl mercaptane on the titania support strongly depended on the pretreatment temperature (30-400 degrees C), whereas the adsorption on Au nanoparticles was virtually unaffected by this parameter. A very mild thermal pretreatment was identified as a requirement for avoiding the adsorption of the MM on the titania support. CH(3)SH adsorbed on the support desorbed at lower temperatures (maximal rate of desorption was centered at ca. 150 degrees C) compared to species desorbing from Au nanoparticles (maximum at ca. 200-220 degrees C). Moreover, CH(3)SH adsorbed on Au nanoparticles desorbed in the form of dimethyl sulfide (CH(3))(2)S. Part of MM adsorbed on the gold surface was not desorbed even at high temperatures (above 500 degrees C) and stayed on the surface in the form of relatively stable C(x)H(y)S(z) fragments. This residue could be removed by oxygen pulses resulting in the formation of CO(2), SO(2), and H(2)O. The good discrimination of MM chemisorption on Au nanoparticles and on titania renders the determination of the Au surface area viable. Potential and limitations of the CH(3)SH chemisorption for the surface area determination of Au nanoparticles are discussed. PMID:19740475

van Vegten, Niels; Haider, Peter; Maciejewski, Marek; Krumeich, Frank; Baiker, Alfons

2009-11-15

216

First results with the Au-beam at the AGS  

SciTech Connect

The first measurements using 11.6 A.GeV/c {sup 197} Au beam have been made in April 1992 at the Tandem-Booster-AGS accelerator facilities. Preliminary results from different experiments are presented for Au + Au collisions. Experiment E-877 shows a large increase of the total transverse energy between Si + Al and Au + Au reactions. Experiment E-866 observes an observes an increase of the K {sup +}/{pi}{sup +} ratio (0.25 {plus minus} 0.02) with respect the Si + Au ratio.

Gonin, M.

1992-01-01

217

First results with the Au-beam at the AGS  

SciTech Connect

The first measurements using 11.6 A.GeV/c {sup 197} Au beam have been made in April 1992 at the Tandem-Booster-AGS accelerator facilities. Preliminary results from different experiments are presented for Au + Au collisions. Experiment E-877 shows a large increase of the total transverse energy between Si + Al and Au + Au reactions. Experiment E-866 observes an observes an increase of the K {sup +}/{pi}{sup +} ratio (0.25 {plus_minus} 0.02) with respect the Si + Au ratio.

Gonin, M.; E-802 /E-866 Collaboration

1992-09-01

218

d+Au Collisions at STAR  

E-print Network

STAR has measured forward pi^0 production in p+p and d+Au collisions at sqrt{s_{NN}}=200 GeV. The p+p yield generally agrees with NLO pQCD calculations. The d+Au yield is strongly suppressed at =4.0, well below shadowing expectations. Exploratory measurements of azimuthal correlations between forward pi^0 and mid-rapidity charged hadrons show a recoil peak in p+p that is suppressed in d+Au at low pion energy. These observations are qualitatively consistent with a saturation picture of the low-x gluon structure of heavy nuclei. Future measurements to elucidate the dynamics underlying these observations are also described.

C. A. Gagliardi; for the STAR Collaboration

2006-07-08

219

Azimuthal di-hadron correlations in d+ Au and Au + Au collisions at sNN=200 GeV measured at the STAR detector  

NASA Astrophysics Data System (ADS)

Yields, correlation shapes, and mean transverse momenta pT of charged particles associated with intermediate- to high-pT trigger particles (2.5Au and Au + Au collisions at sNN=200 GeV are presented. For associated particles at higher pT?2.5 GeV/c, narrow correlation peaks are seen in d+ Au and Au + Au, indicating that the main production mechanism is jet fragmentation. At lower associated particle pT<2 GeV/c, a large enhancement of the near- (??~0) and away-side (??~?) associated yields is found, together with a strong broadening of the away-side azimuthal distributions in Au + Au collisions compared to d+ Au measurements, suggesting that other particle production mechanisms play a role. This is further supported by the observed significant softening of the away-side associated particle yield distribution at ??~? in central Au + Au collisions.

Aggarwal, M. M.; Ahammed, Z.; Alakhverdyants, A. V.; Alekseev, I.; Alford, J.; Anderson, B. D.; Arkhipkin, D.; Averichev, G. S.; Balewski, J.; Barnby, L. S.; Baumgart, S.; Beavis, D. R.; Bellwied, R.; Betancourt, M. J.; Betts, R. R.; Bhasin, A.; Bhati, A. K.; Bichsel, H.; Bielcik, J.; Bielcikova, J.; Biritz, B.; Bland, L. C.; Bonner, B. E.; Bouchet, J.; Braidot, E.; Brandin, A. V.; Bridgeman, A.; Bruna, E.; Bueltmann, S.; Bunzarov, I.; Burton, T. P.; Cai, X. Z.; Caines, H.; Caldern de La Barca Snchez, M.; Catu, O.; Cebra, D.; Cendejas, R.; Cervantes, M. C.; Chajecki, Z.; Chaloupka, P.; Chattopadhyay, S.; Chen, H. F.; Chen, J. H.; Chen, J. Y.; Cheng, J.; Cherney, M.; Chikanian, A.; Choi, K. E.; Christie, W.; Chung, P.; Clarke, R. F.; Codrington, M. J. M.; Corliss, R.; Cramer, J. G.; Crawford, H. J.; Das, D.; Dash, S.; Davila Leyva, A.; de Silva, L. C.; Debbe, R. R.; Dedovich, T. G.; Derevschikov, A. A.; Derradi de Souza, R.; Didenko, L.; Djawotho, P.; Dogra, S. M.; Dong, X.; Drachenberg, J. L.; Draper, J. E.; Dunlop, J. C.; Dutta Mazumdar, M. R.; Efimov, L. G.; Elhalhuli, E.; Elnimr, M.; Engelage, J.; Eppley, G.; Erazmus, B.; Estienne, M.; Eun, L.; Evdokimov, O.; Fachini, P.; Fatemi, R.; Fedorisin, J.; Fersch, R. G.; Filip, P.; Finch, E.; Fine, V.; Fisyak, Y.; Gagliardi, C. A.; Gangadharan, D. R.; Ganti, M. S.; Garcia-Solis, E. J.; Geromitsos, A.; Geurts, F.; Ghazikhanian, V.; Ghosh, P.; Gorbunov, Y. N.; Gordon, A.; Grebenyuk, O.; Grosnick, D.; Guertin, S. M.; Gupta, A.; Gupta, N.; Guryn, W.; Haag, B.; Hamed, A.; Han, L.-X.; Harris, J. W.; Hays-Wehle, J. P.; Heinz, M.; Heppelmann, S.; Hirsch, A.; Hjort, E.; Hoffman, A. M.; Hoffmann, G. W.; Hofman, D. J.; Horner, M. J.; Huang, B.; Huang, H. Z.; Humanic, T. J.; Huo, L.; Igo, G.; Jacobs, P.; Jacobs, W. W.; Jena, C.; Jin, F.; Jones, C. L.; Jones, P. G.; Joseph, J.; Judd, E. G.; Kabana, S.; Kajimoto, K.; Kang, K.; Kapitan, J.; Kauder, K.; Keane, D.; Kechechyan, A.; Kettler, D.; Kikola, D. P.; Kiryluk, J.; Kisiel, A.; Klein, S. R.; Knospe, A. G.; Kocoloski, A.; Koetke, D. D.; Kollegger, T.; Konzer, J.; Koralt, I.; Koroleva, L.; Korsch, W.; Kotchenda, L.; Kouchpil, V.; Kravtsov, P.; Krueger, K.; Krus, M.; Kumar, L.; Kurnadi, P.; Lamont, M. A. C.; Landgraf, J. M.; Lapointe, S.; Lauret, J.; Lebedev, A.; Lednicky, R.; Lee, C.-H.; Lee, J. H.; Leight, W.; Levine, M. J.; Li, C.; Li, L.; Li, N.; Li, W.; Li, X.; Li, X.; Li, Y.; Li, Z. M.; Lin, G.; Lindenbaum, S. J.; Lisa, M. A.; Liu, F.; Liu, H.; Liu, J.; Ljubicic, T.; Llope, W. J.; Longacre, R. S.; Love, W. A.; Lu, Y.; Luo, X.; Ma, G. L.; Ma, Y. G.; Mahapatra, D. P.; Majka, R.; Mall, O. I.; Mangotra, L. K.; Manweiler, R.; Margetis, S.; Markert, C.; Masui, H.; Matis, H. S.; Matulenko, Yu. A.; McDonald, D.; McShane, T. S.; Meschanin, A.; Milner, R.; Minaev, N. G.; Mioduszewski, S.; Mischke, A.; Mitrovski, M. K.; Mohanty, B.; Mondal, M. M.; Morozov, B.; Morozov, D. A.; Munhoz, M. G.; Nandi, B. K.; Nattrass, C.; Nayak, T. K.; Nelson, J. M.; Netrakanti, P. K.; Ng, M. J.; Nogach, L. V.; Nurushev, S. B.; Odyniec, G.; Ogawa, A.; Okorokov, V.; Oldag, E. W.; Olson, D.; Pachr, M.; Page, B. S.; Pal, S. K.; Pandit, Y.; Panebratsev, Y.; Pawlak, T.; Peitzmann, T.; Perevoztchikov, V.; Perkins, C.; Peryt, W.; Phatak, S. C.; Pile, P.; Planinic, M.; Ploskon, M. A.; Pluta, J.; Plyku, D.; Poljak, N.; Poskanzer, A. M.; Potukuchi, B. V. K. S.; Powell, C. B.; Prindle, D.; Pruneau, C.; Pruthi, N. K.; Pujahari, P. R.; Putschke, J.; Raniwala, R.; Raniwala, S.; Ray, R. L.; Redwine, R.; Reed, R.; Ritter, H. G.; Roberts, J. B.; Rogachevskiy, O. V.; Romero, J. L.; Rose, A.; Roy, C.; Ruan, L.; Sahoo, R.; Sakai, S.; Sakrejda, I.; Sakuma, T.; Salur, S.; Sandweiss, J.; Sangaline, E.; Schambach, J.; Scharenberg, R. P.; Schmitz, N.; Schuster, T. R.; Seele, J.; Seger, J.; Selyuzhenkov, I.; Seyboth, P.; Shahaliev, E.; Shao, M.; Sharma, M.; Shi, S. S.; Sichtermann, E. P.; Simon, F.; Singaraju, R. N.; Skoby, M. J.; Smirnov, N.; Sorensen, P.; Sowinski, J.; Spinka, H. M.; Srivastava, B.; Stanislaus, T. D. S.; Staszak, D.; Stevens, J. R.; Stock, R.; Strikhanov, M.; Stringfellow, B.; Suaide, A. A. P.; Suarez, M. C.; Subba, N. L.; Sumbera, M.; Sun, X. M.; Sun, Y.; Sun, Z.; Surrow, B.; Svirida, D. N.; Symons, T. J. M.; Szanto de Toledo, A.; Takahashi, J.; Tang, A. H.; Tang, Z.; Tarini, L. H.; Tarnowsky, T.; Thein, D.; Thomas, J. H.; Tian, J.; Timmins, A. R.; Timoshenko, S.; Tlusty, D.; Tokarev, M.; Trainor, T. A.; Tram, V. N.; Trentalange, S.; Tribble, R. E.; Tsai, O. D.; Ulery, J.; Ullrich, T.; Underwood, D. G.; van Buren, G.; van Leeuwen, M.; van Nieuwenhuizen, G.; Vanfossen, J. A., Jr.; Varma, R.; Vasconcelos, G. M. S.; Vasiliev, A. N.; Videbaek, F.; Viyogi, Y. P.; Vokal, S.; Voloshin, S. A.; Wada, M.; Walker, M.; Wang, F.; Wang, G.; Wang, H.

2010-08-01

220

Azimuthal di-hadron correlations in d+Au and Au+Au collisions at $\\sqrt{s_{NN}}=200$ GeV from STAR  

E-print Network

Yields, correlation shapes, and mean transverse momenta \\pt{} of charged particles associated with intermediate to high-\\pt{} trigger particles ($2.5 < \\pt < 10$ \\GeVc) in d+Au and Au+Au collisions at $\\snn=200$ GeV are presented. For associated particles at higher $\\pt \\gtrsim 2.5$ \\GeVc, narrow correlation peaks are seen in d+Au and Au+Au, indicating that the main production mechanism is jet fragmentation. At lower associated particle $\\pt < 2$ \\GeVc, a large enhancement of the near- ($\\dphi \\sim 0$) and away-side ($\\dphi \\sim \\pi$) associated yields is found, together with a strong broadening of the away-side azimuthal distributions in Au+Au collisions compared to d+Au measurements, suggesting that other particle production mechanisms play a role. This is further supported by the observed significant softening of the away-side associated particle yield distribution at $\\dphi \\sim \\pi$ in central Au+Au collisions.

STAR Collaboration; M. M. Aggarwal; Z. Ahammed; A. V. Alakhverdyants; I. Alekseev; J. Alford; B. D. Anderson; Daniel Anson; D. Arkhipkin; G. S. Averichev; J. Balewski; L. S. Barnby; S. Baumgart; D. R. Beavis; R. Bellwied; M. J. Betancourt; R. R. Betts; A. Bhasin; A. K. Bhati; H. Bichsel; J. Bielcik; J. Bielcikova; B. Biritz; L. C. Bland; B. E. Bonner; J. Bouchet; E. Braidot; A. V. Brandin; A. Bridgeman; E. Bruna; S. Bueltmann; I. Bunzarov; T. P. Burton; X. Z. Cai; H. Caines; M. Calderon; O. Catu; D. Cebra; R. Cendejas; M. C. Cervantes; Z. Chajecki; P. Chaloupka; S. Chattopadhyay; H. F. Chen; J. H. Chen; J. Y. Chen; J. Cheng; M. Cherney; A. Chikanian; K. E. Choi; W. Christie; P. Chung; R. F. Clarke; M. J. M. Codrington; R. Corliss; J. G. Cramer; H. J. Crawford; D. Das; S. Dash; A. Davila Leyva; L. C. De Silva; R. R. Debbe; T. G. Dedovich; A. A. Derevschikov; R. Derradi de Souza; L. Didenko; P. Djawotho; S. M. Dogra; X. Dong; J. L. Drachenberg; J. E. Draper; J. C. Dunlop; M. R. Dutta Mazumdar; L. G. Efimov; E. Elhalhuli; M. Elnimr; J. Engelage; G. Eppley; B. Erazmus; M. Estienne; L. Eun; O. Evdokimov; P. Fachini; R. Fatemi; J. Fedorisin; R. G. Fersch; P. Filip; E. Finch; V. Fine; Y. Fisyak; C. A. Gagliardi; D. R. Gangadharan; M. S. Ganti; E. J. Garcia-Solis; A. Geromitsos; F. Geurts; V. Ghazikhanian; P. Ghosh; Y. N. Gorbunov; A. Gordon; O. Grebenyuk; D. Grosnick; S. M. Guertin; A. Gupta; N. Gupta; W. Guryn; B. Haag; A. Hamed; L-X. Han; J. W. Harris; J. P. Hays-Wehle; M. Heinz; S. Heppelmann; A. Hirsch; E. Hjort; A. M. Hoffman; G. W. Hoffmann; D. J. Hofman; B. Huang; H. Z. Huang; T. J. Humanic; L. Huo; G. Igo; P. Jacobs; W. W. Jacobs; C. Jena; F. Jin; C. L. Jones; P. G. Jones; J. Joseph; E. G. Judd; S. Kabana; K. Kajimoto; K. Kang; J. Kapitan; K. Kauder; D. Keane; A. Kechechyan; D. Kettler; D. P. Kikola; J. Kiryluk; A. Kisiel; S. R. Klein; A. G. Knospe; A. Kocoloski; D. D. Koetke; T. Kollegger; J. Konzer; I. Koralt; L. Koroleva; W. Korsch; L. Kotchenda; V. Kouchpil; P. Kravtsov; K. Krueger; M. Krus; L. Kumar; P. Kurnadi; M. A. C. Lamont; J. M. Landgraf; S. LaPointe; J. Lauret; A. Lebedev; R. Lednicky; C-H. Lee; J. H. Lee; W. Leight; M. J. LeVine; C. Li; L. Li; N. Li; W. Li; X. Li; X. Li; Y. Li; Z. M. Li; G. Lin; S. J. Lindenbaum; M. A. Lisa; F. Liu; H. Liu; J. Liu; T. Ljubicic; W. J. Llope; R. S. Longacre; W. A. Love; Y. Lu; E. V. Lukashov; X. Luo; G. L. Ma; Y. G. Ma; D. P. Mahapatra; R. Majka; O. I. Mall; L. K. Mangotra; R. Manweiler; S. Margetis; C. Markert; H. Masui; H. S. Matis; Yu. A. Matulenko; D. McDonald; T. S. McShane; A. Meschanin; R. Milner; N. G. Minaev; S. Mioduszewski; A. Mischke; M. K. Mitrovski; B. Mohanty; M. M. Mondal; B. Morozov; D. A. Morozov; M. G. Munhoz; B. K. Nandi; C. Nattrass; T. K. Nayak; J. M. Nelson; P. K. Netrakanti; M. J. Ng; L. V. Nogach; S. B. Nurushev; G. Odyniec; A. Ogawa; V. Okorokov; E. W. Oldag; D. Olson; M. Pachr; B. S. Page; S. K. Pal; Y. Pandit; Y. Panebratsev; T. Pawlak; T. Peitzmann; V. Perevoztchikov; C. Perkins; W. Peryt; S. C. Phatak; P. Pile; M. Planinic; M. A. Ploskon; J. Pluta; D. Plyku; N. Poljak; A. M. Poskanzer; B. V. K. S. Potukuchi; C. B. Powell; D. Prindle; C. Pruneau; N. K. Pruthi; P. R. Pujahari; J. Putschke; H. Qiu; R. Raniwala; S. Raniwala; R. L. Ray; R. Redwine; R. Reed; H. G. Ritter; J. B. Roberts; O. V. Rogachevskiy; J. L. Romero; A. Rose; C. Roy; L. Ruan; R. Sahoo; S. Sakai; I. Sakrejda; T. Sakuma; S. Salur; J. Sandweiss; E. Sangaline; J. Schambach; R. P. Scharenberg; N. Schmitz; T. R. Schuster; J. Seele; J. Seger; I. Selyuzhenkov; P. Seyboth; E. Shahaliev; M. Shao; M. Sharma; S. S. Shi; E. P. Sichtermann; F. Simon; R. N. Singaraju; M. J. Skoby; N. Smirnov; P. Sorensen; J. Sowinski; H. M. Spinka; B. Srivastava; T. D. S. Stanislaus; D. Staszak; J. R. Stevens; R. Stock; M. Strikhanov; B. Stringfellow; A. A. P. Suaide; M. C. Suarez; N. L. Subba; M. Sumbera; X. M. Sun; Y. Sun; Z. Sun; B. Surrow; D. N. Svirida; T. J. M. Symons; A. Szanto de Toledo; J. Takahashi; A. H. Tang; Z. Tang; L. H. Tarini; T. Tarnowsky; D. Thein; J. H. Thomas; J. Tian; A. R. Timmins; S. Timoshenko; D. Tlusty; M. Tokarev; T. A. Trainor; V. N. Tram; S. Trentalange; R. E. Tribble; O. D. Tsai; J. Ulery; T. Ullrich; D. G. Underwood; G. Van Buren; M. van Leeuwen; G. van Nieuwenhuizen; J. A. Vanfossen, Jr.; R. Varma; G. M. S. Vasconcelos; A. N. Vasiliev; F. Videbaek; Y. P. Viyogi; S. Vokal; S. A. Voloshin; M. Wada; M. Walker; F. Wang; G. Wang; H. Wang; J. S. Wang; Q. Wang; X. L. Wang; Y. Wang; G. Webb; J. C. Webb; G. D. Westfall; C. Whitten Jr.; H. Wieman; S. W. Wissink; R. Witt; Y. F. Wu; W. Xie; H. Xu; N. Xu; Q. H. Xu; W. Xu; Y. Xu; Z. Xu; L. Xue; Y. Yang; P. Yepes; K. Yip; I-K. Yoo; Q. Yue; M. Zawisza; H. Zbroszczyk; W. Zhan; J. B. Zhang; S. Zhang; W. M. Zhang; X. P. Zhang; Y. Zhang; Z. P. Zhang; J. Zhao; C. Zhong; J. Zhou; W. Zhou; X. Zhu; Y. H. Zhu

2010-04-14

221

[The role of membrane processes in Au(III) and Au(0) accumulation by bacteria].  

PubMed

The role of structural and functional factors in the processes of the bacterial cell interaction with colloid Au (0) and ionic Au (III) states has been investigated. It is shown that the bacterial walls of Bacillus sp. 4368 aggregating with colloid gold contain glycoprotein with isoelectric point 11. Glycoprotein from cell walls indifferent to colloid gold strain (Bacillus subtilis 168) has pHiso = 5. At the same time the cells of both strains accumulate Au (III) introduced into a medium in the form of tetrachloroaurate. The process is energy-dependent because it is suppressed by azide, uncouplers of oxidative phosphorylation and dicyclohexyl carbodiimide (DCCD). The role of ATPase of Au (III) accumulation has been studied on Bacillus sp. 4368 plasma membrane vesicles. The ATPase activity is inhibited by 70, 50 and 35-50% by vanadate, DCCD and Au (III), respectively, but it does not change in the presence of dinitrophenol and NaN3. ATP but not ADP and AMP stimulated the Au (III) accumulation by membrane vesicles and prevents the inhibitory action of azide but neither of DNP or DCCD. In the energized state membrane vesicles link gold sol particles. It has been assumed that the Au (III) accumulation is associated with the functioning of transmembrane potential generators, the metal being localized on the membrane surface. PMID:2139989

Karamushka, V I; Ul'berg, Z R; Gruzina, T G

1990-01-01

222

Production of ? mesons in p + p, d + Au, Cu + Cu, and Au + Au collisions at sNN=200 GeV  

NASA Astrophysics Data System (ADS)

The PHENIX experiment at the Relativistic Heavy Ion Collider has measured ? meson production via leptonic and hadronic decay channels in p+p, d+Au, Cu+Cu, and Au+Au collisions at sNN = 200 GeV. The invariant transverse momentum spectra measured in different decay modes give consistent results. Measurements in the hadronic decay channel in Cu+Cu and Au+Au collisions show that ? production has a suppression pattern at high transverse momentum, similar to that of ?0 and ? in central collisions, but no suppression is observed in peripheral collisions. The nuclear modification factors, RAA, are consistent in Cu+Cu and Au+Au collisions at similar numbers of participant nucleons.

Adare, A.; Afanasiev, S.; Aidala, C.; Ajitanand, N. N.; Akiba, Y.; Al-Bataineh, H.; Al-Jamel, A.; Alexander, J.; Angerami, A.; Aoki, K.; Apadula, N.; Aphecetche, L.; Aramaki, Y.; Armendariz, R.; Aronson, S. H.; Asai, J.; Atomssa, E. T.; Averbeck, R.; Awes, T. C.; Azmoun, B.; Babintsev, V.; Bai, M.; Baksay, G.; Baksay, L.; Baldisseri, A.; Barish, K. N.; Barnes, P. D.; Bassalleck, B.; Basye, A. T.; Bathe, S.; Batsouli, S.; Baublis, V.; Bauer, F.; Baumann, C.; Bazilevsky, A.; Belikov, S.; Belmont, R.; Bennett, R.; Berdnikov, A.; Berdnikov, Y.; Bhom, J. H.; Bickley, A. A.; Bjorndal, M. T.; Blau, D. S.; Boissevain, J. G.; Bok, J. S.; Borel, H.; Boyle, K.; Brooks, M. L.; Brown, D. S.; Bucher, D.; Buesching, H.; Bumazhnov, V.; Bunce, G.; Burward-Hoy, J. M.; Butsyk, S.; Camacho, C. M.; Campbell, S.; Caringi, A.; Chai, J.-S.; Chang, B. S.; Charvet, J.-L.; Chen, C.-H.; Chernichenko, S.; Chi, C. Y.; Chiba, J.; Chiu, M.; Choi, I. J.; Choi, J. B.; Choudhury, R. K.; Christiansen, P.; Chujo, T.; Chung, P.; Churyn, A.; Chvala, O.; Cianciolo, V.; Citron, Z.; Cleven, C. R.; Cobigo, Y.; Cole, B. A.; Comets, M. P.; Conesa Del Valle, Z.; Connors, M.; Constantin, P.; Csand, M.; Csrg?, T.; Dahms, T.; Dairaku, S.; Danchev, I.; Das, K.; Datta, A.; David, G.; Dayananda, M. K.; Deaton, M. B.; Dehmelt, K.; Delagrange, H.; Denisov, A.; D'Enterria, D.; Deshpande, A.; Desmond, E. J.; Dharmawardane, K. V.; Dietzsch, O.; Dion, A.; Donadelli, M.; Drachenberg, J. L.; Drapier, O.; Drees, A.; Drees, K. A.; Dubey, A. K.; Durham, J. M.; Durum, A.; Dutta, D.; Dzhordzhadze, V.; D'Orazio, L.; Edwards, S.; Efremenko, Y. V.; Egdemir, J.; Ellinghaus, F.; Emam, W. S.; Engelmore, T.; Enokizono, A.; En'yo, H.; Espagnon, B.; Esumi, S.; Eyser, K. O.; Fadem, B.; Fields, D. E.; Finger, M.; Finger, M., Jr.; Fleuret, F.; Fokin, S. L.; Forestier, B.; Fraenkel, Z.; Frantz, J. E.; Franz, A.; Frawley, A. D.; Fujiwara, K.; Fukao, Y.; Fung, S.-Y.; Fusayasu, T.; Gadrat, S.; Garishvili, I.; Gastineau, F.; Germain, M.; Glenn, A.; Gong, H.; Gonin, M.; Gosset, J.; Goto, Y.; Granier de Cassagnac, R.; Grau, N.; Greene, S. V.; Grim, G.; Grosse Perdekamp, M.; Gunji, T.; Gustafsson, H.-.; Hachiya, T.; Hadj Henni, A.; Haegemann, C.; Haggerty, J. S.; Hagiwara, M. N.; Hahn, K. I.; Hamagaki, H.; Hamblen, J.; Han, R.; Hanks, J.; Harada, H.; Hartouni, E. P.; Haruna, K.; Harvey, M.; Haslum, E.; Hasuko, K.; Hayano, R.; He, X.; Heffner, M.; Hemmick, T. K.; Hester, T.; Heuser, J. M.; Hiejima, H.; Hill, J. C.; Hobbs, R.; Hohlmann, M.; Holmes, M.; Holzmann, W.; Homma, K.; Hong, B.; Horaguchi, T.; Hornback, D.; Huang, S.; Hur, M. G.; Ichihara, T.; Ichimiya, R.; Ide, J.; Iinuma, H.; Ikeda, Y.; Imai, K.; Inaba, M.; Inoue, Y.; Isenhower, D.; Isenhower, L.; Ishihara, M.; Isobe, T.; Issah, M.; Isupov, A.; Ivanischev, D.; Iwanaga, Y.; Jacak, B. V.; Jia, J.; Jiang, X.; Jin, J.; Jinnouchi, O.; Johnson, B. M.; Jones, T.; Joo, K. S.; Jouan, D.; Jumper, D. S.; Kajihara, F.; Kametani, S.; Kamihara, N.; Kamin, J.; Kaneta, M.; Kang, J. H.; Kanou, H.; Kapustinsky, J.; Karatsu, K.; Kasai, M.; Kawagishi, T.; Kawall, D.; Kawashima, M.; Kazantsev, A. V.; Kelly, S.; Kempel, T.; Khanzadeev, A.; Kijima, K. M.; Kikuchi, J.; Kim, A.; Kim, B. I.; Kim, D. H.; Kim, D. J.; Kim, E.; Kim, E. J.; Kim, S. H.; Kim, Y.-J.; Kim, Y.-S.; Kim, Y. J.; Kinney, E.; Kiriluk, K.; Kiss, .; Kistenev, E.; Kiyomichi, A.; Klay, J.; Klein-Boesing, C.; Kochenda, L.; Kochetkov, V.; Komkov, B.; Konno, M.; Koster, J.; Kotchetkov, D.; Kozlov, A.; Krl, A.; Kravitz, A.; Kroon, P. J.; Kubart, J.; Kunde, G. J.; Kurihara, N.; Kurita, K.; Kurosawa, M.; Kweon, M. J.; Kwon, Y.; Kyle, G. S.; Lacey, R.; Lai, Y. S.; Lajoie, J. G.; Lebedev, A.; Le Bornec, Y.; Leckey, S.; Lee, D. M.; Lee, J.; Lee, K.; Lee, K. B.; Lee, K. S.; Lee, M. K.; Lee, T.; Leitch, M. J.; Leite, M. A. L.; Leitner, E.; Lenzi, B.; Li, X.; Li, X. H.; Lichtenwalner, P.; Liebing, P.; Lim, H.; Linden Levy, L. A.; Lika, T.; Litvinenko, A.; Liu, H.; Liu, M. X.; Love, B.; Luechtenborg, R.; Lynch, D.; Maguire, C. F.; Makdisi, Y. I.; Malakhov, A.; Malik, M. D.; Manko, V. I.; Mannel, E.; Mao, Y.; Maek, L.; Masui, H.; Matathias, F.; McCain, M. C.; McCumber, M.; McGaughey, P. L.; Means, N.; Meredith, B.; Miake, Y.; Mibe, T.; Mignerey, A. C.; Mike, P.; Miki, K.; Miller, T. E.; Milov, A.; Mioduszewski, S.; Mishra, G. C.; Mishra, M.; Mitchell, J. T.; Mitrovski, M.; Mohanty, A. K.; Moon, H. J.; Morino, Y.; Morreale, A.; Morrison, D. P.; Moss, J. M.; Moukhanova, T. V.; Mukhopadhyay, D.; Murakami, T.; Murata, J.; Nagamiya, S.; Nagata, Y.; Nagle, J. L.; Naglis, M.; Nagy, M. I.; Nakagawa, I.; Nakamiya, Y.; Nakamura, K. R.; Nakamura, T.; Nakano, K.; Nam, S.; Newby, J.; Nguyen, M.; Nihashi, M.; Norman, B. E.; Nouicer, R.; Nyanin, A. S.; Nystrand, J.; Oakley, C.; O'Brien, E.; Oda, S. X.; Ogilvie, C. A.

2011-10-01

223

Local Thermalization in the d + Au System  

E-print Network

The extent of a locally equilibrated parton plasma in d + Au collisions at sqrt(s_NN) = 200 GeV is investigated as a function of collision centrality in a nonequilibrium-statistical framework. Based on a three-sources model, analytical solutions of a relativistic diffusion equation are in precise agreement with recent data for charged-particle pseudorapidity distributions. The moving midrapidity source indicates the size of the local thermal equilibrium region after hadronization. In central d + Au collisions it contains about 19% of the produced particles, and its relative importance rises with decreasing centrality.

Georg Wolschin; Minoru Biyajima; Takuya Mizoguchi; Naomichi Suzuki

2005-03-22

224

Local thermalization in d + Au collisions  

E-print Network

The extent of a locally equilibrated parton plasma in d + Au collisions at sqrt(s_NN) = 200 GeV is investigated as a function of centrality in a nonequilibrium-statistical framework. Based on a three-sources model, analytical solutions of a relativistic diffusion equation are in precise agreement with recent data for charged-particle pseudorapidity distributions. The moving midrapidity source indicates the size of the local thermal equilibrium region after hadronization. In central d + Au collisions it contains 19% of the produced particles.

G. Wolschin; M. Biyajima; T. Mizoguchi; N. Suzuki

2005-10-12

225

Infra-red spectroscopy of size selected Au25, Au38 and Au144 ligand protected gold clusters.  

PubMed

Through the discovery of ligand protected metal clusters with cores of a precise number of atoms, the exploration of the third dimension of the periodic table for fundamental research and also for applications has become less remote. So far, the exact number of metal atoms in the core has been determined unambiguously only using mass spectrometry and single crystal X-ray diffraction. Gold clusters protected by 2-phenylethanethiol ligands, for instance, show distinct magic numbers that correspond to either electronic or geometric shell closings. For efficient control of their synthesis simple-to-use in situ spectroscopies are required. In the specific case of Au25(SCH2CH2Ph)18 clusters (1) we found a distinct shift of the aromatic C-H stretching band from 3030-3100 cm(-1) to below 3000 cm(-1) whose origin is discussed as an electronic interaction of the aromatic rings of the ligands with each other or with the gold core. This IR-feature is specific for Au25; the spectra of Au38(SCH2CH2Ph)24 (2) and Au144(SCH2CH2Ph)60 (3) clusters do not show this distinct shift and their IR-spectra in the C-H stretching regime are similar to that of the bare ligand. This significant change in the IR spectrum of Au25(SCH2CH2Ph)18 is not only of fundamental interest but also allows for in situ determination of the purity and monodispersity of the sample using FTIR spectroscopy during synthesis. PMID:23788003

Farrag, Mostafa; Tschurl, Martin; Dass, Amala; Heiz, Ulrich

2013-08-14

226

Magneto-optic studies of Fe\\/Au multilayers  

Microsoft Academic Search

Magneto-optic (MO) polar and longitudinal Kerr spectroscopy is applied to rf sputtered Fe\\/Au multilayers character- ized with SQUID magnetometry, ferromagnetic resonance and Lorentz microscopy. The main trends in MO spectra are explained by computer simulations using bulk data for Fe and Au. At lower Fe thickness the spectra show the Au plasma edge peak and the structure assigned to quantum

R. Lopus; R. Krishnan; M. Tessier; Z. Frait; P. Aitchison; J. N. Chapman; URA CNRS; Na Slovance

227

Evidence of Significant Covalent Bonding in Au(CN)2-  

SciTech Connect

There have been intense recent interests in the homogeneous catalytic chemistry of Au(I) complexes.1 Among the Au(I) molecules, the Au(CN)2- ion is the most stable and has been widely used in gold extraction back to ancient times. Although AuCN in the condensed phase has been studied, including solution phase vibrational spectroscopy2 and crystal structures,3 the free AuCN molecule has been studied only very recently by microwave spectroscopy.4 The important Au(CN)2- complex has not been observed and studied in the gas phase. Because of the relativistic effects,5 Au-containing molecules exhibit distinctly different properties among the coinage elements. To elucidate the nature of the Au-ligand binding, high-level ab initio calculations are needed due to the complicated electron correlation and relativistic effects.6-8 The structure and bonding of the AuCN molecule were first examined computationally by Frenking and co-workers.7 Recent high-precision calculations by Pyykk and co-workers suggest multiple-bond characters between Au-C in AuCN because the Au-C bond length is only slightly longer than the sum of the triple bond covalent radii.

Wang, Xue B.; wang, Yi-Lei; Yang, Jie; Xing, Xiaopeng; Li, Jun; Wang, Lai S.

2009-11-18

228

``Beating speckles'' via electrically-induced vibrations of Au  

E-print Network

of gold (Au) nanorods embedded in a transparent sol-gel host. Specifically, we show that placing the Au``Beating speckles'' via electrically-induced vibrations of Au nanorods embedded in sol-gel nanorod/sol-gel matrix in an alternating current (AC) field gives rise to dramatic modulation of incident

Jelinek, Raz

229

Enhanced strange baryon production in Au+Au collisions compared to p+p at sqrts = 200 GeV  

E-print Network

We report on the observed differences in production rates of strange and multi-strange baryons in Au+Au collisions at sqrts = 200 GeV compared to p+p interactions at the same energy. The yields in Au+Au collisions, when scaled by the number of participants, are larger than those measured in the p+p data. The magnitudes of the differences grow with the strangeness of the baryon and with increasing centrality. The enhancements of the Au+Au yields are close to those measured in sqrts = 17.3 GeV collisions. Further, when the binary scaled p+p pT spectra are compared to those of Au+Au the heavy-ion yields exceed binary scaling in the pT range 1 < pT< 4 GeV/c.

Abelev, B I; Ahammed, Z; Anderson, B D; Arkhipkin, D; Averichev, G S; Bai, Y; Balewski, J; Barannikova, O; Barnby, L S; Baudot, J; Baumgart, S; Bekele, S; Belaga, V V; Bellingeri-Laurikainen, A; Bellwied, R; Benedosso, F; Betts, R R; Bhardwaj, S; Bhasin, A; Bhati, A K; Bichsel, H; Bielcik, J; Bielcikova, J; Bland, L C; Blyth, S L; Bombara, M; Bonner, B E; Botje, M; Bouchet, J; Brandin, A V; Bravar, A; Burton, T P; Bystersky, M; Cadman, R V; Cai, X Z; Caines, H; Caldern de la Barca-Sanchez, M; Callner, J; Castillo, J; Catu, O; Cebra, D; Chajecki, Z; Chaloupka, P; Chattopadhyay, S; Chen, H F; Chen, J H; Cheng, J; Cherney, M; Chikanian, A; Christie, W; Chung, S U; Coffin, J P; Cormier, T M; Cosentino, M R; Cramer, J G; Crawford, H J; Das, D; Das, S; Dash, S; Daugherity, M; De Moura, M M; Dedovich, T G; De Phillips, M; Derevshchikov, A A; Didenko, L; Dietel, T; Djawotho, P; Dogra, S M; Dong, X; Drachenberg, J L; Draper, J E; Du, F; Dunin, V B; Dunlop, J C; Dutta-Majumdar, M R; Eckardt, V; Edwards, W R; Efimov, L G; Emelianov, V; Engelage, J; Eppley, G; Erazmus, B; Estienne, M; Fachini, P; Fatemi, R; Fedorisin, J; Filimonov, K; Filip, P; Finch, E; Fine, V; Fisyak, Yu; Fu, J; Gagliardi, C A; Gaillard, L; Ganti, M S; Garca-Solis, E; Ghazikhanian, V; Ghosh, P; Gorbunov, Y G; Gos, H; Grebenyuk, O; Grosnick, D; Guertin, S M; Guimaraes, K S F F; Gupta, N; Haag, B; Hallman, T J; Hamed, A; Harris, J W; He, W; Heinz, M; Henry, T W; Hepplemann, S; Hippolyte, B; Hirsch, A; Hjort, E; Hoffman, A M; Hoffmann, G W; Hofman, D; Hollis, R; Horner, M J; Huang, H Z; Huang, S L; Hughes, E W; Humanic, T J; Igo, G; Iordanova, A; Jacobs, P; Jacobs, W W; Jakl, P; Jia, F; Jones, P G; Judd, E G; Kabana, S; Kang, K; Kapitan, J; Kaplan, M; Keane, D; Kechechyan, A; Kettler, D; Khodyrev, V Yu; Kim, B C; Kiryluk, J; Kisiel, A; Kislov, E M; Knospe, A G; Kocoloski, A; Koetke, D D; Kollegger, T; Kopytine, M; Kotchenda, L; Kouchpil, V; Kowalik, K L; Kravtsov, P; Kravtsov, V I; Krger, K; Kuhn, C; Kulikov, A I; Kumar, A; Kurnadi, P; Kuznetsov, A A; Lamont, M A C; Landgraf, J M; Lange, S; La Pointe, S; Laue, F; Lauret, J; Lebedev, A; Lednicky, R; Lee, C H; Lehocka, S; Le Vine, M J; Li, C; Li, Q; Li, Y; Lin, G; Lin, X; Lindenbaum, S J; Lisa, M A; Liu, F; Liu, H; Liu, J; Liu, L; Liu, Z; Ljubicic, T; Llope, W J; Long, H; Longacre, R S; Love, W A; Lu, Y; Ludlam, T; Lynn, D; Ma, G L; Ma, J G; Ma, Y G; Magestro, D; Mahapatra, D P; Majka, R; Mangotra, L K; Manweiler, R; Margetis, S; Markert, C; Martin, L; Matis, H S; Matulenko, Yu A; McClain, C J; McShane, T S; Melnik, Yu M; Meschanin, A; Millane, J; Miller, M L; Minaev, N G; Mioduszewski, S; Mironov, C; Mischke, A; Mishra, D K; Mitchell, J; Mohanty, B; Molnr, L; Moore, C F; Morozov, D A; Munhoz, M G; Nandi, B K; Nattrass, C; Nayak, T K; Nelson, J M; Nepali, N S; Netrakanti, P K; Nogach, L V; Nurushev, S B; Odyniec, Grazyna Janina; Ogawa, A; Okorokov, V; Oldenburg, M; Olson, D; Pachr, M; Pal, S K; Panebratsev, Yu A; Pavlinov, A I; Pawlak, T; Peitzmann, T; Perevozchikov, V; Perkins, C; Peryt, W; Phatak, S C; Planinic, M; Pluta, J; Poljak, N; Porile, N; Porter, J; Poskanzer, A M; Potekhin, M V; Potrebenikova, E V; Potukuchi, B V K S; Prindle, D; Pruneau, C; Putschke, J; Qattan, I A; Rakness, G; Raniwala, R; Raniwala, S; Ray, R L; Razin, S V; Reinnarth, J; Relyea, D; Ridiger, A; Ritter, H G; Roberts, J B; Rogachevski, O V; Romero, J L; Rose, A; Roy, C; Ruan, L; Russcher, M J; Sahoo, R; Sakuma, T; Salur, S; Sandweiss, J; Sarsour, M; Sazhin, P S; Schambach, J; Scharenberg, R P; Schmitz, N; Schweda, K; Seger, J; Selyuzhenkov, I; Seyboth, P; Shabetai, A; Shahaliev, E; Shao, M; Sharma, M; Shen, W Q; Shimansky, S S; Sichtermann, E P; Simon, F; Singaraju, R N; Smirnov, N; Snellings, R; Srensen, P; Sowinski, J; Speltz, J; Spinka, H M; Srivastava, B; Stadnik, A; Stanislaus, T D S; Staszak, D; Stock, R; Stolpovsky, A; Strikhanov, M N; Stringfellow, B C; Suaide, A A P; Suarez, M C; Subba, N L; Sugarbaker, E R; Sumbera, M; Sun, Z; Surrow, B; Swanger, M; Symons, T J M; Szanto de Toledo, A; Takahashi, J; Tang, A H; Tarnowsky, T J; Thomas, J H; Timmins, A R; Timoshenko, S; Tokarev, M; Trainor, T A; Trentalange, S; Tribble, R E; Tsai, O D; Ulery, J; Ullrich, T; Underwood, D G; Van Buren, G; Van der Kolk, N; Van Leeuwen, M; Van der Molen, A M; Varma, R; Vasilevski, I M; Vasilev, A N; Vernet, R; Vigdor, S E; Viyogi, Y P; Vokal, S; Voloshin, S A; Waggoner, W T; Wang, F; Wang, G; Wang, J S; Wang, X L; Wang, Y; Watson, J W; Webb, J C; Westfall, G D; Wetzler, A; Whitten, C; Wieman, H; Wissink, S W; Witt, R; Wu, J; Xu, N; Xu, Q H; Xu, Z; Yepes, P; Yoo, I K; Yurevich, V I; Zhan, W; Zhang, H; Zhang, W M; Zhang, Y; Zhang, Z P; Zhao, Y; Zhong, C; Zhou, J; Zoulkarneev, R; Zoulkarneeva, Y; Zubarev, A N; Zuo, J X

2007-01-01

230

Jet-Hadron Correlations in ?s[subscript NN] = 200 GeV p + p and Central Au + Au Collisions  

E-print Network

Azimuthal angular correlations of charged hadrons with respect to the axis of a reconstructed (trigger) jet in Au + Au and p + p collisions at ?s[subscript NN] = 200??GeV in STAR are presented. The trigger jet population ...

Stevens, Justin

231

Measurement of J/? Azimuthal Anisotropy in Au+Au Collisions at ?s[subscript NN]=200??GeV  

E-print Network

The measurement of J/? azimuthal anisotropy is presented as a function of transverse momentum for different centralities in Au+Au collisions at ?s[subscript NN]=200??GeV. The measured J/? elliptic flow is consistent with ...

Balewski, Jan T.

232

Anomalous centrality evolution of two-particle angular correlations from Au-Au collisions at [? over s[subscript NN  

E-print Network

We present two-dimensional (2D) two-particle angular correlations measured with the STAR detector on relative pseudorapidity ? and azimuth ? for charged particles from Au-Au collisions at [? over s[subscript NN

Balewski, Jan T.

233

Charged hadron transverse momentum distributions in Au+Au collisions at ?sNN=200 GeV  

NASA Astrophysics Data System (ADS)

We present transverse momentum distributions of charged hadrons produced in Au+Au collisions at s NN=200 GeV. The spectra were measured for transverse momenta pT from 0.25 to 4.5 GeV/ c in a pseudorapidity range of 0.2< ?<1.4. The evolution of the spectra is studied as a function of collision centrality, from 65 to 344 participating nucleons. The results are compared to data from proton-antiproton collisions and Au+Au collisions at lower RHIC energies. We find a significant change of the spectral shape between proton-antiproton and semi-peripheral Au+Au collisions. Comparing semi-peripheral to central Au+Au collisions, we find that the yields at high pT exhibit approximate scaling with the number of participating nucleons, rather than scaling with the number of binary collisions.

Back, B. B.; Baker, M. D.; Barton, D. S.; Betts, R. R.; Ballintijn, M.; Bickley, A. A.; Bindel, R.; Budzanowski, A.; Busza, W.; Carroll, A.; Decowski, M. P.; Garca, E.; George, N.; Gulbrandsen, K.; Gushue, S.; Halliwell, C.; Hamblen, J.; Heintzelman, G. A.; Henderson, C.; Hofman, D. J.; Hollis, R. S.; Ho?y?ski, R.; Holzman, B.; Iordanova, A.; Johnson, E.; Kane, J. L.; Katzy, J.; Khan, N.; Kucewicz, W.; Kulinich, P.; Kuo, C. M.; Lin, W. T.; Lee, J. W.; Manly, S.; McLeod, D.; Mignerey, A. C.; Nouicer, R.; Olszewski, A.; Pak, R.; Park, I. C.; Pernegger, H.; Reed, C.; Remsberg, L. P.; Reuter, M.; Roland, C.; Roland, G.; Rosenberg, L.; Sagerer, J.; Sarin, P.; Sawicki, P.; Skulski, W.; Steadman, S. G.; Steinberg, P.; Stephans, G. S. F.; Sukhanov, A.; Tang, J.-L.; Teng, R.; Trzupek, A.; Vale, C.; van Nieuwenhuizen, G. J.; Verdier, R.; Veres, G. I.; Wadsworth, B.; Wolfs, F. L. H.; Wosiek, B.; Wo?niak, K.; Wuosmaa, A. H.; Wys?ouch, B.

2004-01-01

234

Core(Fe)-shell(au) nanoparticles obtained from thin fe/au bilayers employing surface segregation.  

PubMed

Core(Fe)-shell(Au) nanoparticles are obtained by solid-state dewetting of thin Fe/Au bilayer films deposited on a sapphire substrate. The core-shell morphology is achieved by employing the equilibrium segregation phenomenon, where Au atoms form a homogeneous thin shell on the surfaces of an Fe nanoparticle and at its interface with the substrate, reducing the total interfacial energy of the system. The obtained nanoparticles are single crystalline (structurally perfect), thermally stable, and of high purity. Their size may be tuned by changing the initial film thickness. We demonstrate that the nanoparticles can subsequently be stripped from the substrate, and/or be modified by attaching thiol-containing organic molecules for use in various nanotechnology-related applications. The method presented herein may easily be extended to other metal combinations, especially those relevant for catalysis, thus helping to reduce precious-metal (e.g., Au, Pt, Rh) content in the catalyst. PMID:25211205

Amram, Dor; Rabkin, Eugen

2014-10-28

235

Charge-dependent azimuthal correlations from AuAu to UU collisions  

E-print Network

We study the charge-dependent azimuthal correlations in relativistic heavy ion collisions, as motivated by the search for the Chiral Magnetic Effect (CME) and the investigation of related background contributions. In particular we aim to understand how these correlations induced by various proposed effects evolve from collisions with AuAu system to that with UU system. To do that, we quantify the generation of magnetic field in UU collisions at RHIC energy and its azimuthal correlation to the matter geometry using event-by-event simulations. Taking the experimental data for charge-dependent azimuthal correlations from AuAu collisions and extrapolating to UU with reasonable assumptions, we examine the resulting correlations to be expected in UU collisions and compare them with recent STAR measurements. Based on such analysis we discuss the viability for explaining the data with a combination of the CME-like and flow-induced contributions.

John Bloczynski; Xu-Guang Huang; Xilin Zhang; Jinfeng Liao

2013-11-21

236

Stress evolution during annealing of Cu/Au, Cu/Ag and Au/Ag bilayers.  

PubMed

Experimental observations of the measurements of the average force F per width (i.e., F/w) during annealing of Au/Cu, Cu/Au, Ag/Cu, Cu/Ag, Au/Ag and Ag/Au bilayers attached to silicon substrate are reported. Systems with total thickness of 12 nm and thicknesses of films of 6 nm are investigated. The total force per width in a system was determined in-situ by the substrate curvature measurement method with the laser scanning technique during deposition and annealing. Significant stress evolution during the first cycle of heating was observed for all samples. It was found that during the first annealing cycle, irreversible changes occur in layers and increases the interface roughness. An increase in the interface roughness modifies the coefficients of elastic deformation of layers. Subsequent annealing cycles do not cause major changes in the stress in a bilayer. PMID:23421258

Chocyk, D; Proszynski, A; Gladyszewski, G

2012-11-01

237

Cyclotrimerization of arylalkynes on Au(111).  

PubMed

Surface-assisted cyclotrimerization of arylalkynes was studied on Au(111) by means of scanning tunneling microscopy (STM) under ultra-high vacuum (UHV) conditions. Upon thermal activation, cyclotrimerization of 1,3,5-tris-(4-ethynylphenyl)benzene proceeds readily and with high selectivity, and results in two-dimensional covalently bonded polyphenylene nanostructures exhibiting a honeycomb topology. PMID:25110877

Liu, Jia; Ruffieux, Pascal; Feng, Xinliang; Mllen, Klaus; Fasel, Roman

2014-10-01

238

Energy levels for Au-171 (Gold-171)  

NASA Astrophysics Data System (ADS)

This document is part of Subvolume C `Tables of Excitations of Proton- and Neutron-rich Unstable Nuclei' of Volume 19 `Nuclear States from Charged Particle Reactions' of Landolt-Brnstein - Group I `Elementary Particles, Nuclei and Atoms'. It provides energy levels for atomic nuclei of the isotope Au-171 (gold, atomic number Z = 79, mass number A = 171).

Sukhoruchkin, S. I.; Soroko, Z. N.

239

swinburne.edu.au Certificate II Electrotechnology  

E-print Network

in Schools What is VET in Schools? Vocational Education and Training (VET) in Schools (VETiS) offers studentsswinburne.edu.au Certificate II Electrotechnology Studies (Pre-vocational) Course code: 21877VIC an option to complete their VCE or VCAL while also undertaking vocational studies. You will gain practical

Liley, David

240

swinburne.edu.au Environment and  

E-print Network

-hand knowledge of what's needed when you start work. Vocational training Learn the skills that are in demand you move between vocational training and a degree. Visit www.swinburne.edu.au/pathways University to university, whether you are transitioning from school to university, progressing from vocational training

Liley, David

241

swinburne.edu.au DEGREES AND DIPLOMAS  

E-print Network

.vtac.edu.au to find your fee-type eligibility. #12;3 Combine imagination with smart business sense Swinburne's prestigious design courses let you combine imagination and innovation with smart business sense. You'll learn Factory Swinburne Design Factory is the first `living lab' dedicated to design in Australia. Student teams

Liley, David

242

Nanoporous Au: an unsupported pure gold catalyst?  

SciTech Connect

The unique properties of gold especially in low temperature CO oxidation have been ascribed to a combination of various effects. In particular, particle sizes below a few nm and specific particle-support interactions have been shown to play important roles. On the contrary, recent reports revealed that monolithic nanoporous gold (npAu) prepared by leaching a less noble metal, such as Ag, out of the corresponding alloy can also exhibit remarkably high catalytic activity for CO oxidation, even though no support is present. Therefore, it was claimed to be a pure and unsupported gold catalyst. We investigated npAu with respect to its morphology, surface composition and catalytic properties. In particular, we studied the reaction kinetics for low temperature CO oxidation in detail taking mass transport limitation due to the porous structure of the material into account. Our results reveal that Ag, even if removed almost completely from the bulk, segregates to the surface resulting in surface concentrations of up to 10 at%. Our data suggest that this Ag plays a significant role in activation of molecular oxygen. Therefore, npAu should be considered as a bimetallic catalyst rather than a pure Au catalyst.

Wittstock, A; Neumann, B; Schaefer, A; Dumbuya, K; Kuebel, C; Biener, M; Zielasek, V; Steinrueck, H; Gottfried, M; Biener, J; Hamza, A; B?umer, M

2008-09-04

243

swinburne.edu.au Social Sciences  

E-print Network

;Studying arts and social sciences Our arts and social sciences courses give you the skills you need media understanding what motivates people writing blogging, the internet and social media socialswinburne.edu.au Arts and Social Sciences }2015 Degrees and diplomas #12;`Studying at Swinburne has

Liley, David

244

Selective laser melting (SLM) of gold (Au)  

Microsoft Academic Search

Purpose Different metals have been processed using laser-based solid freeform fabrication (SFF) processes but very little work has been published on the selective laser melting (SLM) of gold (Au). The purpose of this paper is to check the properties of gold powder and identify suitable processing parameters for SLM of 24 carat gold powder. Design\\/methodology\\/approach A full factorial

Mushtaq Khan; Phill Dickens

2012-01-01

245

business.uts.edu.au inistration  

E-print Network

skills and insight gained through your studies to address real world business problems. This enables our School graduates will integrate core business knowledge to problem solve in ways that demonstrate a fullbusiness.uts.edu.au UTS: BUSINESS EM BA ExEcutivE M astEr of BusinEss adM inistration 2012 #12

University of Technology, Sydney

246

w.it.uts.edu.au INTERNATIONAL  

E-print Network

't just learn the theory ­ you also learn how to use IT to solve business problems. Subject #12;2 / 1 NSW Department of State and Regional Development ­ 2008-2009 ­ www.business. nsw.gov.au/industry/ict/ ­ Data is for 2010. IBIS World Industry Value Added Estimates, for Australia and IBIS business count

University of Technology, Sydney

247

Nanoporous Au: an unsupported pure gold catalyst?  

Microsoft Academic Search

The unique properties of gold especially in low temperature CO oxidation have been ascribed to a combination of various effects. In particular, particle sizes below a few nm and specific particle-support interactions have been shown to play important roles. On the contrary, recent reports revealed that monolithic nanoporous gold (npAu) prepared by leaching a less noble metal, such as Ag,

A Wittstock; B Neumann; A Schaefer; K Dumbuya; C Kuebel; M Biener; V Zielasek; H Steinrueck; M Gottfried; J Biener; A Hamza; M Bumer

2008-01-01

248

Diffusion au sommet d'une  

E-print Network

Diffusion au sommet d'une barri`ere de potentiel (I) Diffusion clas- sique/quantique Trajectoires classiques L'´equation de Schr¨odinger Op´erateur de diffusion Diffusion quantique en dimension 1 Matrice de diffusion Quelques r´esultats R´esonances Le Th´eor`eme de D. Robert et H. Tamura Trajectoires capt

Ramond, Thierry

249

Faces of Port-au-Prince  

USGS Multimedia Gallery

This photo was taken by USGS seismologist Susan Hough two months after the magnitude-7 earthquake struck Port-au-Prince on Jan. 12, 2010. Dr. Hough traveled to Haiti with USGS colleagues Doug Given, Mark Meremonte, and J. Zebulon Maharrey to install seismometers, which monitor the earth's movement a...

2010-04-07

250

Net Charge Fluctuations in Au+Au Interactions at (sNN)=130 GeV  

Microsoft Academic Search

Data from Au+ Au interactions at (sNN)=130 GeV, obtained with the PHENIX detector at the Relativistic Heavy-Ion Collider, are used to investigate local net charge fluctuations among particles produced near midrapidity. According to recent suggestions, such fluctuations may carry information from the quark-gluon plasma. This analysis shows that the fluctuations are dominated by a stochastic distribution of particles, but are

K. Adcox; S. S. Adler; N. N. Ajitanand; Y. Akiba; J. Alexander; L. Aphecetche; Y. Arai; S. H. Aronson; R. Averbeck; T. C. Awes; K. N. Barish; P. D. Barnes; J. Barrette; B. Bassalleck; S. Bathe; V. Baublis; A. Bazilevsky; S. Belikov; F. G. Bellaiche; S. T. Belyaev; M. J. Bennett; Y. Berdnikov; S. Botelho; M. L. Brooks; D. S. Brown; N. Bruner; D. Bucher; H. Buesching; V. Bumazhnov; G. Bunce; J. Burward-Hoy; S. Butsyk; T. A. Carey; P. Chand; J. Chang; W. C. Chang; L. L. Chavez; S. Chernichenko; C. Y. Chi; J. Chiba; M. Chiu; R. K. Choudhury; T. Christ; T. Chujo; M. S. Chung; P. Chung; V. Cianciolo; B. A. Cole; D. G. D'Enterria; G. David; H. Delagrange; A. Denisov; A. Deshpande; E. J. Desmond; O. Dietzsch; B. V. Dinesh; A. Drees; A. Durum; D. Dutta; K. Ebisu; Y. V. Efremenko; K. El Chenawi; H. En'yo; S. Esumi; L. Ewell; T. Ferdousi; D. E. Fields; S. L. Fokin; Z. Fraenkel; A. Franz; A. D. Frawley; S.-Y. Fung; S. Garpman; T. K. Ghosh; A. Glenn; A. L. Godoi; Y. Goto; S. V. Greene; M. Grosse Perdekamp; S. K. Gupta; W. Guryn; H.-. Gustafsson; J. S. Haggerty; H. Hamagaki; A. G. Hansen; H. Hara; E. P. Hartouni; R. Hayano; N. Hayashi; X. He; T. K. Hemmick; J. M. Heuser; M. Hibino; J. C. Hill; D. S. Ho; K. Homma; B. Hong; A. Hoover; T. Ichihara; K. Imai; M. S. Ippolitov; M. Ishihara; B. V. Jacak; W. Y. Jang; J. Jia; B. M. Johnson; S. C. Johnson; K. S. Joo; S. Kametani; J. H. Kang; M. Kann; S. S. Kapoor; S. Kelly; B. Khachaturov; A. Khanzadeev; J. Kikuchi; D. J. Kim; H. J. Kim; S. Y. Kim; Y. G. Kim; W. W. Kinnison; E. Kistenev; A. Kiyomichi; C. Klein-Boesing; S. Klinksiek; L. Kochenda; V. Kochetkov; D. Koehler; T. Kohama; D. Kotchetkov; A. Kozlov; P. J. Kroon; K. Kurita; M. J. Kweon; Y. Kwon; G. S. Kyle; R. Lacey; J. G. Lajoie; J. Lauret; A. Lebedev; D. M. Lee; M. J. Leitch; X. H. Li; Z. Li; D. J. Lim; M. X. Liu; X. Liu; Z. Liu; C. F. Maguire; J. Mahon; Y. I. Makdisi; V. I. Manko; Y. Mao; S. K. Mark; S. Markacs; G. Martinez; M. D. Marx; A. Masaike; F. Matathias; T. Matsumoto; P. L. McGaughey; E. Melnikov; M. Merschmeyer; F. Messer; M. Messer; Y. Miake; T. E. Miller; A. Milov; S. Mioduszewski; R. E. Mischke; G. C. Mishra; J. T. Mitchell; A. K. Mohanty; J. M. Moss; F. Mhlbacher; M. Muniruzzaman; J. Murata; S. Nagamiya; Y. Nagasaka; J. L. Nagle; Y. Nakada; B. K. Nandi; J. Newby; L. Nikkinen; P. Nilsson; S. Nishimura; A. S. Nyanin; J. Nystrand; E. O'Brien; C. A. Ogilvie; H. Ohnishi; I. D. Ojha; M. Ono; V. Onuchin; A. Oskarsson; L. sterman; I. Otterlund; K. Oyama; L. Paffrath; A. P. Palounek; V. S. Pantuev; V. Papavassiliou; S. F. Pate; T. Peitzmann; A. N. Petridis; C. Pinkenburg; R. P. Pisani; P. Pitukhin; F. Plasil; M. Pollack; K. Pope; M. L. Purschke; I. Ravinovich; K. F. Read; K. Reygers; V. Riabov; Y. Riabov; M. Rosati; A. A. Rose; S. S. Ryu; N. Saito; A. Sakaguchi; T. Sakaguchi; H. Sako; T. Sakuma; V. Samsonov; T. C. Sangster; R. Santo; H. D. Sato; S. Sato; S. Sawada; B. R. Schlei; Y. Schutz; V. Semenov; R. Seto; T. K. Shea; I. Shein; T.-A. Shibata; K. Shigaki; T. Shiina; Y. H. Shin; I. G. Sibiriak; D. Silvermyr; K. S. Sim; J. Simon-Gillo; C. P. Singh; V. Singh; M. Sivertz; A. Soldatov; R. A. Soltz; S. Sorensen; P. W. Stankus; N. Starinsky; P. Steinberg; E. Stenlund; A. Ster; S. P. Stoll; M. Sugioka; T. Sugitate; J. P. Sullivan; Y. Sumi; Z. Sun; M. Suzuki; E. M. Takagui; A. Taketani; M. Tamai; K. H. Tanaka; Y. Tanaka; E. Taniguchi; M. J. Tannenbaum; J. Thomas; T. L. Thomas; W. Tian; J. Tojo; H. Torii; R. S. Towell; I. Tserruya; H. Tsuruoka; A. A. Tsvetkov; S. K. Tuli; H. Tydesj; N. Tyurin; T. Ushiroda; H. W. van Hecke; C. Velissaris; J. Velkovska; M. Velkovsky; A. A. Vinogradov; M. A. Volkov; A. Vorobyov; E. Vznuzdaev; H. Wang; Y. Watanabe; S. N. White; C. Witzig; F. K. Wohn; C. L. Woody; W. Xie; K. Yagi; S. Yokkaichi; G. R. Young; I. E. Yushmanov; W. A. Zajc; Z. Zhang; S. Zhou

2002-01-01

251

Dihadron azimuthal correlations in Au+Au collisions at sNN=200 GeV  

Microsoft Academic Search

Azimuthal angle (Deltavarphi) correlations are presented for a broad range of transverse momentum (0.4Au+Au collisions at sNN=200 GeV. With increasing pT, the away-side Deltavarphi distribution evolves from a broad and relatively flat shape to a concave shape, then to a convex shape. Comparisons with p+p data suggest

A. Adare; S. Afanasiev; C. Aidala; N. N. Ajitanand; Y. Akiba; H. Al-Bataineh; J. Alexander; A. Al-Jamel; K. Aoki; L. Aphecetche; R. Armendariz; S. H. Aronson; J. Asai; E. T. Atomssa; R. Averbeck; T. C. Awes; B. Azmoun; V. Babintsev; G. Baksay; L. Baksay; A. Baldisseri; K. N. Barish; P. D. Barnes; B. Bassalleck; S. Batsouli; V. Baublis; F. Bauer; A. Bazilevsky; S. Belikov; R. Bennett; Y. Berdnikov; A. A. Bickley; M. T. Bjorndal; J. G. Boissevain; H. Borel; K. Boyle; M. L. Brooks; D. S. Brown; D. Bucher; H. Buesching; V. Bumazhnov; G. Bunce; J. M. Burward-Hoy; S. Butsyk; S. Campbell; J.-S. Chai; B. S. Chang; J.-L. Charvet; S. Chernichenko; J. Chiba; C. Y. Chi; M. Chiu; I. J. Choi; T. Chujo; P. Chung; A. Churyn; V. Cianciolo; C. R. Cleven; Y. Cobigo; B. A. Cole; M. P. Comets; P. Constantin; M. Csand; T. Csrgo; T. Dahms; K. Das; G. David; M. B. Deaton; K. Dehmelt; H. Delagrange; A. Denisov; D. D'Enterria; A. Deshpande; E. J. Desmond; O. Dietzsch; A. Dion; M. Donadelli; J. L. Drachenberg; O. Drapier; A. Drees; A. K. Dubey; A. Durum; V. Dzhordzhadze; Y. V. Efremenko; J. Egdemir; F. Ellinghaus; W. S. Emam; A. Enokizono; H. En'yo; B. Espagnon; S. Esumi; K. O. Eyser; D. E. Fields; M. Finger; F. Fleuret; S. L. Fokin; B. Forestier; Z. Fraenkel; J. E. Frantz; A. Franz; A. D. Frawley; K. Fujiwara; Y. Fukao; S.-Y. Fung; T. Fusayasu; S. Gadrat; I. Garishvili; F. Gastineau; M. Germain; A. Glenn; H. Gong; M. Gonin; J. Gosset; Y. Goto; R. Granier de Cassagnac; N. Grau; S. V. Greene; M. Grosse Perdekamp; T. Gunji; H.-. Gustafsson; T. Hachiya; A. Hadj Henni; C. Haegemann; J. S. Haggerty; M. N. Hagiwara; H. Hamagaki; R. Han; H. Harada; E. P. Hartouni; K. Haruna; M. Harvey; E. Haslum; K. Hasuko; R. Hayano; M. Heffner; T. K. Hemmick; T. Hester; J. M. Heuser; X. He; H. Hiejima; J. C. Hill; R. Hobbs; M. Hohlmann; M. Holmes; W. Holzmann; K. Homma; B. Hong; T. Horaguchi; D. Hornback; M. G. Hur; T. Ichihara; K. Imai; M. Inaba; Y. Inoue; D. Isenhower; L. Isenhower; M. Ishihara; T. Isobe; M. Issah; A. Isupov; B. V. Jacak; J. Jia; J. Jin; O. Jinnouchi; B. M. Johnson; K. S. Joo; D. Jouan; F. Kajihara; S. Kametani; N. Kamihara; J. Kamin; M. Kaneta; J. H. Kang; H. Kanou; T. Kawagishi; D. Kawall; A. V. Kazantsev; S. Kelly; A. Khanzadeev; J. Kikuchi; D. H. Kim; D. J. Kim; E. Kim; Y.-S. Kim; E. Kinney; A. Kiss; E. Kistenev; A. Kiyomichi; J. Klay; C. Klein-Boesing; L. Kochenda; V. Kochetkov; B. Komkov; M. Konno; D. Kotchetkov; A. Kozlov; A. Krl; A. Kravitz; P. J. Kroon; J. Kubart; G. J. Kunde; N. Kurihara; K. Kurita; M. J. Kweon; Y. Kwon; G. S. Kyle; R. Lacey; Y.-S. Lai; J. G. Lajoie; A. Lebedev; Y. Le Bornec; S. Leckey; D. M. Lee; M. K. Lee; T. Lee; M. J. Leitch; M. A. L. Leite; B. Lenzi; H. Lim; T. Liska; A. Litvinenko; M. X. Liu; X. Li; B. Love; D. Lynch; C. F. Maguire; Y. I. Makdisi; A. Malakhov; M. D. Malik; V. I. Manko; Y. Mao; L. Masek; H. Masui; F. Matathias; M. C. McCain; M. McCumber; P. L. McGaughey; Y. Miake; P. Mikes; K. Miki; T. E. Miller; A. Milov; S. Mioduszewski; G. C. Mishra; M. Mishra; J. T. Mitchell; M. Mitrovski; A. Morreale; J. M. Moss; T. V. Moukhanova; D. Mukhopadhyay; J. Murata; S. Nagamiya; Y. Nagata; J. L. Nagle; M. Naglis; I. Nakagawa; Y. Nakamiya; T. Nakamura; K. Nakano; J. Newby; M. Nguyen; B. E. Norman; A. S. Nyanin; J. Nystrand; E. O'Brien; S. X. Oda; C. A. Ogilvie; H. Ohnishi; I. D. Ojha; H. Okada; K. Okada; M. Oka; O. O. Omiwade; A. Oskarsson; I. Otterlund; M. Ouchida; K. Ozawa; R. Pak; D. Pal; A. P. T. Palounek; V. Pantuev; V. Papavassiliou; W. J. Park; S. F. Pate; H. Pei; J.-C. Peng; H. Pereira; V. Peresedov; D. Yu. Peressounko; C. Pinkenburg; R. P. Pisani; M. L. Purschke; A. K. Purwar; H. Qu; J. Rak; A. Rakotozafindrabe; I. Ravinovich; K. F. Read; S. Rembeczki; M. Reuter; K. Reygers; V. Riabov; Y. Riabov; G. Roche; A. Romana; M. Rosati; S. S. E. Rosendahl; P. Rosnet; P. Rukoyatkin; V. L. Rykov; S. S. Ryu; B. Sahlmueller; N. Saito; T. Sakaguchi; S. Sakai; H. Sakata; V. Samsonov; H. D. Sato; S. Sato; S. Sawada; J. Seele; R. Seidl; V. Semenov; R. Seto; D. Sharma; T. K. Shea; I. Shein; A. Shevel; T.-A. Shibata; K. Shigaki; M. Shimomura; T. Shohjoh; K. Shoji; A. Sickles; C. L. Silva; D. Silvermyr; C. Silvestre; K. S. Sim; C. P. Singh; V. Singh; S. Skutnik; M. Slunecka; W. C. Smith; A. Soldatov; R. A. Soltz; W. E. Sondheim; S. P. Sorensen; I. V. Sourikova; F. Staley; P. W. Stankus; E. Stenlund; M. Stepanov; A. Ster; S. P. Stoll; T. Sugitate; C. Suire; J. P. Sullivan; J. Sziklai; T. Tabaru; S. Takagi; E. M. Takagui; A. Taketani; K. H. Tanaka; Y. Tanaka; K. Tanida; M. J. Tannenbaum; A. Taranenko; P. Tarjn; T. L. Thomas; M. Togawa; A. Toia; J. Tojo; L. Tomsek; H. Torii; R. S. Towell; V.-N. Tram; I. Tserruya; Y. Tsuchimoto; S. K. Tuli; H. Tydesj; N. Tyurin; C. Vale; H. Valle; H. W. van Hecke; J. Velkovska; R. Vertesi; A. A. Vinogradov; M. Virius; V. Vrba; E. Vznuzdaev; M. Wagner

2008-01-01

252

Proton-? correlations in central Au+Au collisions at VsNN=200 GeV  

Microsoft Academic Search

We report on p-?,p-? ,p -?, and p -? correlation functions constructed in central Au-Au collisions at ?sNN=200 GeV by the STAR experiment at RHIC. The proton and lambda source size is inferred from the p-? and p -? correlation functions. It is found to be smaller than the pion source size also measured by the STAR experiment at smaller

Y. Bai; M. A. J. Botje; O. Grebenyuk; A. Mischke; T. Peitzmann; M. J. Russcher; R. J. M. Snellings; N. van der Kolk; J. Balewski; O. Barannikova; L. Barnby; J. Baudot; S. Bekele; V. Belaga; A. Bellingeri-Laurikainen; R. Bellwied; J. Berger; B. Bezverkhny; S. Bharadwaj; A. Bhasin; A. Bhati; V. Bhatia; H. Bichsel; J. Bielcik; J. Bielcikova; A. Billmeier; L. Bland; C. Blyth; S.-L. Blyth; B. Bonner; M. Botje; A. Boucham; J. Bouchet; A. Brandin; A. Bravar; M. Bystersky; R. Cadman; X. Cai; H. Caines; M. Snchez; J. Castillo; O. Catu; D. Cebra; Z. Chajecki; P. Chaloupka; S. Chattopadhyay; H. Chen; J. Chen; Y. Chen; J. Cheng; M. Cherney; A. Chikanian; H. Choi; W. Christie; J. Coffin; T. Cormier; M. Cosentino; J. Cramer; H. Crawford; D. Das; S. Das; M. Daugherity; M. Moura; T. Dedovich; M. DePhillips; A. Derevschikov; L. Didenko; T. Dietel; S. Dogra; W. Dong; X. Dong; J. Draper; F. Du; A. Dubey; V. Dunin; J. Dunlop; M. Mazumdar; V. Eckardt; W. Edwards; L. Efimov; V. Emelianov; J. Engelage; G. Eppley; B. Erazmus; M. Estienne; P. Fachini; J. Faivre; R. Fatemi; J. Fedorisin; K. Filimonov; P. Filip; E. Finch; V. Fine; Y. Fisyak; K. Fornazier; J. Fu; C. Gagliardi; L. Gaillard; J. Gans; M. Ganti; F. Geurts; V. Ghazikhanian; P. Ghosh; J. Gonzalez; H. Gos; O. Grachov; D. Grosnick; S. Guertin; Y. Guo; A. Gupta; N. Gupta; T. Gutierrez; T. Hallman; A. Hamed; D. Hardtke; J. Harris; M. Heinz; T. Henry; S. Hepplemann; B. Hippolyte; A. Hirsch; E. Hjort; G. Hoffmann; M. Horner; H. Huang; S. Huang; E. Hughes; T. Humanic; G. Igo; A. Ishihara; P. Jacobs; W. Jacobs; M. Jedynak; H. Jiang; P. Jones; E. Judd; S. Kabana; K. Kang; M. Kaplan; D. Keane; A. Kechechyan; V. Khodyrev; B. Kim; J. Kiryluk; A. Kisiel; E. Kislov; J. Klay; S. Klein; D. Koetke; T. Kollegger; M. Kopytine; L. Kotchenda; K. Kowalik; M. Kramer; P. Kravtsov; V. Kravtsov; K. Krueger; C. Kuhn; A. Kulikov; A. Kumar; R. Kutuev; A. Kuznetsov; M. Lamont; J. Landgraf; S. Lange; F. Laue; J. Lauret; A. Lebedev; R. Lednicky; C.-H. Lee; S. Lehocka; M. LeVine; C. Li; Q. Li; Y. Li; G. Lin; S. Lindenbaum; M. Lisa; F. Liu; H. Liu; J. Liu; L. Liu; Q. Liu; Z. Liu; T. Ljubicic; W. Llope; H. Long; R. Longacre; M. Lopez-Noriega; W. Love; Y. Lu; T. Ludlam; D. Lynn; G. Ma; J. Ma; Y. Ma; D. Magestro; S. Mahajan; D. Mahapatra; R. Majka; L. Mangotra; R. Manweiler; S. Margetis; C. Markert; L. Martin; J. Marx; H. Matis; Yu. Matulenko; C. McClain; T. McShane; F. Meissner; Yu. Melnick; A. Meschanin; M. Miller; N. Minaev; C. Mironov; D. Mishra; J. Mitchell; B. Mohanty; L. Molnar; C. Moore; D. Morozov; M. Munhoz; B. Nandi; S. Nayak; T. Nayak; J. Nelson; P. Netrakanti; V. Nikitin; L. Nogach; S. Nurushev; G. Odyniec; A. Ogawa; V. Okorokov; M. Oldenburg; D. Olson; S. Pal; Y. Panebratsev; S. Panitkin; A. Pavlinov; T. Pawlak; V. Perevoztchikov; C. Perkins; W. Peryt; V. Petrov; S. Phatak; R. Picha; M. Planinic; J. Pluta; N. Porile; J. Porter; A. Poskanzer; M. Potekhin; E. Potrebenikova; B. Potukuchi; D. Prindle; C. Pruneau; J. Putschke; G. Rakness; R. Raniwala; S. Raniwala; O. Ravel; R. Ray; S. Razin; D. Reichhold; J. Reid; J. Reinnarth; G. Renault; F. Retiere; A. Ridiger; H. Ritter; J. Roberts; O. Rogachevskiy; J. Romero; A. Rose; C. Roy; L. Ruan; R. Sahoo; I. Sakrejda; S. Salur; J. Sandweiss; M. Sarsour; I. Savin; P. Sazhin; J. Schambach; R. Scharenberg; N. Schmitz; K. Schweda; J. Seger; I. Selyuzhenkov; P. Seyboth; E. Shahaliev; M. Shao; W. Shao; M. Sharma; W. Shen; K. Shestermanov; S. Shimanskiy; E. Sichtermann; F. Simon; R. Singaraju; N. Smirnov; G. Sood; P. Sorensen; J. Sowinski; J. Speltz; H. Spinka; B. Srivastava; A. Stadnik; T. Stanislaus; R. Stock; A. Stolpovsky; M. Strikhanov; B. Stringfellow; A. Suaide; E. Sugarbaker; M. Sumbera; B. Surrow; M. Swanger; T. Symons; A. Toledo; A. Tai; J. Takahashi; A. Tang; T. Tarnowsky; D. Thein; J. Thomas; A. Timmins; S. Timoshenko; M. Tokarev; T. Trainor; S. Trentalange; R. Tribble; O. Tsai; J. Ulery; T. Ullrich; D. Underwood; G. Buren; M. Leeuwen; A. Molen; R. Varma; I. Vasilevski; A. Vasiliev; R. Vernet; S. Vigdor; Y. Viyogi; S. Vokal; S. Voloshin; W. Waggoner; F. Wang; G. Wang; X. Wang; Y. Wang; Z. Wang; H. Ward; J. Watson; J. Webb; G. Westfall; A. Wetzler; C. Jr.; H. Wieman; S. Wissink; R. Witt; J. Wood; J. Wu; N. Xu; Z. Xu; E. Yamamoto; P. Yepes; I. K. Yoo; V. Yurevich; I. Zborovsky; H. Zhang; W. Zhang; Y. Zhang; Z. Zhang; C. Zhong; R. Zoulkarneev; Y. Zoulkarneeva; A. Zubarev; J. Zuo

2006-01-01

253

Azimuthal anisotropy in Au+Au collisions at &surd;(sNN)=200GeV  

Microsoft Academic Search

The results from the STAR Collaboration on directed flow (v1), elliptic flow (v2), and the fourth harmonic (v4) in the anisotropic azimuthal distribution of particles from Au+Au collisions at &surd;(sNN)=200GeV are summarized and compared with results from other experiments and theoretical models. Results for identified particles are presented and fit with a blast-wave model. Different anisotropic flow analysis methods are

J. Adams; M. M. Aggarwal; Z. Ahammed; J. Amonett; B. D. Anderson; D. Arkhipkin; G. S. Averichev; S. K. Badyal; Y. Bai; J. Balewski; O. Barannikova; L. S. Barnby; J. Baudot; S. Bekele; V. V. Belaga; R. Bellwied; J. Berger; B. I. Bezverkhny; S. Bharadwaj; A. Bhasin; A. K. Bhati; V. S. Bhatia; H. Bichsel; J. Bielcik; J. Bielcikova; A. Billmeier; L. C. Bland; C. O. Blyth; B. E. Bonner; M. Botje; A. Boucham; A. V. Brandin; A. Bravar; M. Bystersky; R. V. Cadman; X. Z. Cai; H. Caines; M. Caldern Snchez; J. Castillo; O. Catu; D. Cebra; Z. Chajecki; P. Chaloupka; S. Chattopadhyay; H. F. Chen; Y. Chen; J. Cheng; M. Cherney; A. Chikanian; W. Christie; J. P. Coffin; T. M. Cormier; J. G. Cramer; H. J. Crawford; D. Das; S. Das; M. M. Moura; A. A. Derevschikov; L. Didenko; T. Dietel; S. M. Dogra; W. J. Dong; X. Dong; J. E. Draper; F. Du; A. K. Dubey; V. B. Dunin; J. C. Dunlop; M. R. Mazumdar; V. Eckardt; W. R. Edwards; L. G. Efimov; V. Emelianov; J. Engelage; G. Eppley; B. Erazmus; M. Estienne; P. Fachini; J. Faivre; R. Fatemi; J. Fedorisin; K. Filimonov; P. Filip; E. Finch; V. Fine; Y. Fisyak; K. Fomenko; J. Fu; C. A. Gagliardi; L. Gaillard; J. Gans; M. S. Ganti; L. Gaudichet; F. Guerts; V. Ghazikhanian; P. Ghosh; J. E. Gonzalez; O. Grachov; O. Grebenyuk; D. Grosnick; S. M. Guertin; Y. Guo; A. Gupta; T. D. Gutierrez; T. J. Hallman; A. Hamed; D. Hardtke; J. W. Harris; M. Heinz; T. W. Henry; S. Hepplemann; B. Hippolyte; A. Hirsch; E. Hjort; G. W. Hoffmann; H. Z. Huang; S. L. Huang; E. W. Hughes; T. J. Humanic; G. Igo; A. Ishihara; P. Jacobs; W. W. Jacobs; M. Janik; H. Jiang; P. G. Jones; E. G. Judd; S. Kabana; K. Kang; M. Kaplan; D. Keane; V. Yu. Khodyrev; J. Kiryluk; A. Kisiel; E. M. Kislov; J. Klay; S. R. Klein; D. D. Koetke; T. Kollegger; M. Kopytine; L. Kotchenda; M. Kramer; P. Kravtsov; V. I. Kravtsov; K. Krueger; C. Kuhn; A. I. Kulikov; A. Kumar; R. Kh. Kutuev; A. A. Kuznetsov; M. A. Lamont; J. M. Landgraf; S. Lange; F. Laue; J. Lauret; A. Lebedev; R. Lednicky; S. Lehocka; M. J. Levine; C. Li; Q. Li; Y. Li; G. Lin; S. J. Lindenbaum; M. A. Lisa; F. Liu; L. Liu; Q. J. Liu; Z. Liu; T. Ljubicic; W. J. Llope; H. Long; R. S. Langacre; M. Lopez-Noriega; W. A. Love; Y. Lu; T. Ludlam; D. Lynn; G. L. Ma; J. G. Ma; Y. G. Ma; D. Magestro; S. Mahajan; D. P. Mahapatra; R. Majka; L. K. Mangotra; R. Manweiler; S. Margetis; C. Markert; L. Martin; J. N. Marx; H. S. Matis; Yu. A. Matulenko; C. J. McClain; T. S. McShane; F. Meissner; Yu. Melnick; A. Meschanin; M. L. Miller; N. G. Minaev; C. Mironov; A. Mischke; D. K. Mishra; J. Mitchell; B. Mohanty; L. Molnar; C. F. Moore; D. A. Morozov; M. G. Munhoz; B. K. Nandi; S. K. Nayak; T. K. Nayak; J. M. Nelson; P. K. Netrakanti; V. A. Nikitin; L. V. Nogach; S. B. Nurushev; G. Odyniec; A. Ogawa; V. Okorokov; M. Oldenburg; D. Olson; S. K. Pal; Y. Panebratsev; S. Y. Panitkin; A. I. Pavlinov; T. Pawlak; T. Peitzmann; V. Perevoztchikov; C. Perkins; W. Peryt; V. A. Petrov; S. C. Phatak; R. Picha; M. Planinic; J. Pluta; N. Porile; J. Porter; A. M. Poskanzer; M. Potekhin; E. Potrebenikova; B. V. Potukuchi; D. Prindle; C. Pruneau; J. Putschke; G. Rakness; R. Raniwala; S. Raniwala; O. Ravel; R. L. Ray; S. V. Razin; D. Reichhold; J. G. Reid; G. Renault; F. Retiere; A. Ridiger; H. G. Ritter; J. B. Roberts; O. V. Rogachevskiy; J. L. Romero; A. Rose; C. Roy; L. Ruan; R. Sahoo; I. Sakrejda; S. Salur; J. Sandweiss; M. Sarsour; I. Savin; P. S. Sazhin; J. Schambach; R. P. Scharenberg; N. Schmitz; K. Schweda; J. Seger; P. Seyboth; E. Shahaliev; M. Shao; W. Shao; M. Sharma; W. Q. Shen; K. E. Shestermanov; S. S. Shimanskiy; E. Sichtermann; F. Simon; R. N. Singaraju; G. Skoro; N. Smirnov; R. Snellings; G. Sood; P. Sorensen; J. Sowinski; J. Speltz; H. M. Spinka; B. Srivastava; A. Stadnik; T. D. Stanislaus; R. Stock; A. Stolpovsky; M. Strikhanov; B. Stringfellow; A. A. Suaide; E. Sugarbaker; C. Suire; M. Sumbera; B. Surrow; T. J. Symons; A. Szanto Toledo; P. Szarwas; A. Tai; J. Takahashi; A. H. Tang; T. Tarnowsky; D. Thein; J. H. Thomas; S. Timoshenko; M. Tokarev; T. A. Trainor; S. Trentalange; R. E. Tribble; O. D. Tsai; J. Ulery; T. Ullrich; D. G. Underwood; A. Urkinbaev; G. Van Buren; M. Van Leeuwen; A. M. Molen; R. Varma; I. M. Vasilevski; A. N. Vasiliev; R. Vernet; S. E. Vigdor; Y. P. Viyogi; S. Vokal; S. A. Voloshin; M. Vznuzdaev; W. T. Waggoner; F. Wang; G. Wang; X. L. Wang; Y. Wang; Z. M. Wang; H. Ward; J. W. Watson; J. C. Webb; R. Wells; G. D. Westfall; A. Wetzler; C. Whitten Jr.; H. Wieman; S. W. Wissink; R. Witt; J. Wood; J. Wu; N. Xu; Z. Xu; E. Yamamoto; P. Yepes; V. I. Yurevich; Y. V. Zanevsky; H. Zhang; W. M. Zhang; Z. P. Zhang; R. Zoulkarneev; Y. Zoulkarneeva; A. N. Zubarev; A. Braem; M. Davenport; G. De Cataldo; D. Di Bari; P. Martinengo; E. Nappi; G. Paic; E. Posa; F. Puiz; E. Schyns

2005-01-01

254

Pion interferometry in Au+Au collisions at root s(NN)=200 GeV  

Microsoft Academic Search

We present a systematic analysis of two-pion interferometry in Au+Au collisions at root s(NN)=200 GeV using the STAR detector at Relativistic Heavy Ion Collider. We extract the Hanbury-Brown and Twiss radii and study their multiplicity, transverse momentum, and azimuthal angle dependence. The Gaussianness of the correlation function is studied. Estimates of the geometrical and dynamical structure of the freeze-out source

J. Adams; M. M. Aggarwal; Z. Ahammed; J. Amonett; B. D. Anderson; D. Arkhipkin; G. S. Averichev; S. K. Badyal; Y. Bai; J. Balewski; O. Barannikova; L. S. Barnby; J. Baudot; S. Bekele; V. V. Belaga; R. Bellwied; J. Berger; B. I. Bezverkhny; S. Bharadwaj; A. Bhasin; A. K. Bhati; V. S. Bhatia; H. Bichsel; A. Billmeier; L. C. Bland; C. O. Blyth; B. E. Bonner; M. Botje; A. Boucham; A. V. Brandin; A. Bravar; M. Bystersky; R. V. Cadman; X. Z. Cai; H. Caines; M. C. D. Sanchez; J. Castillo; D. Cebra; Z. Chajecki; P. Chaloupka; S. Chattopadhyay; H. F. Chen; Y. Chen; J. Cheng; M. Cherney; A. Chikanian; W. Christie; J. P. Coffin; T. M. Cormier; J. G. Cramer; H. J. Crawford; D. Das; S. Das; M. M. de Moura; A. A. Derevschikov; L. Didenko; T. Dietel; S. M. Dogra; W. J. Dong; X. Dong; J. E. Draper; F. Du; A. K. Dubey; V. B. Dunin; J. C. Dunlop; M. R. D. Mazumdar; V. Eckardt; W. R. Edwards; L. G. Efimov; V. Emelianov; J. Engelage; G. Eppley; B. Erazmus; M. Estienne; P. Fachini; J. Faivre; R. Fatemi; J. Fedorisin; K. Filimonov; P. Filip; E. Finch; V. Fine; Y. Fisyak; K. Fomenko; J. Fu; C. A. Gagliardi; J. Gans; M. S. Ganti; L. Gaudichet; F. Geurts; V. Ghazikhanian; P. Ghosh; J. E. Gonzalez; O. Grachov; O. Grebenyuk; D. Grosnick; S. M. Guertin; Y. Guo; A. Gupta; T. D. Gutierrez; T. J. Hallman; A. Hamed; D. Hardtke; J. W. Harris; M. Heinz; T. W. Henry; S. Hepplemann; B. Hippolyte; A. Hirsch; E. Hjort; G. W. Hoffmann; H. Z. Huang; S. L. Huang; E. W. Hughes; T. J. Humanic; G. Igo; A. Ishihara; P. Jacobs; W. W. Jacobs; M. Janik; H. Jiang; P. G. Jones; E. G. Judd; S. Kabana; K. Kang; M. Kaplan; D. Keane; V. Y. Khodyrev; J. Kiryluk; A. Kisiel; E. M. Kislov; J. Klay; S. R. Klein; A. Klyachko; D. D. Koetke; T. Kollegger; M. Kopytine; L. Kotchenda; M. Kramer; P. Kravtsov; V. I. Kravtsov; K. Krueger; C. Kuhn; A. I. Kulikov; A. Kumar; R. K. Kutuev; A. A. Kuznetsov; M. A. C. Lamont; J. M. Landgraf; S. Lange; F. Laue; J. Lauret; A. Lebedev; R. Lednicky; S. Lehocka; M. J. LeVine; C. Li; Q. Li; Y. Li; G. Lin; S. J. Lindenbaum; M. A. Lisa; F. Liu; L. Liu; Q. J. Liu; Z. Liu; T. Ljubicic; W. J. Llope; H. Long; R. S. Longacre; M. L. Noriega; W. A. Love; Y. Lu; T. Ludlam; D. Lynn; G. L. Ma; J. G. Ma; Y. G. Ma; D. Magestro; S. Mahajan; D. P. Mahapatra; R. Majka; L. K. Mangotra; R. Manweiler; S. Margetis; C. Markert; L. Martin; J. N. Marx; H. S. Matis; Y. A. Matulenko; C. J. McClain; T. S. McShane; F. Meissner; Y. Melnick; A. Meschanin; M. L. Miller; N. G. Minaev; C. Mironov; A. Mischke; D. K. Mishra; J. Mitchell; B. Mohanty; L. Molnar; C. F. Moore; D. A. Morozov; M. G. Munhoz; B. K. Nandi; S. K. Nayak; T. K. Nayak; J. M. Nelson; P. K. Netrakanti; V. A. Nikitin; L. V. Nogach; S. B. Nurushev; G. Odyniec; A. Ogawa; V. Okorokov; M. Oldenburg; D. Olson; S. K. Pal; Y. Panebratsev; S. Y. Panitkin; A. I. Pavlinov; T. Pawlak; T. Peitzmann; V. Perevoztchikov; C. Perkins; W. Peryt; V. A. Petrov; S. C. Phatak; R. Picha; M. Planinic; J. Pluta; N. Porile; J. Porter; A. M. Poskanzer; M. Potekhin; E. Potrebenikova; B. V. K. S. Potukuchi; D. Prindle; C. Pruneau; J. Putschke; G. Rakness; R. Raniwala; S. Raniwala; O. Ravel; R. L. Ray; S. V. Razin; D. Reichhold; J. G. Reid; G. Renault; F. Retiere; A. Ridiger; H. G. Ritter; J. B. Roberts; O. V. Rogachevskiy; J. L. Romero; A. Rose; C. Roy; L. Ruan; R. Sahoo; I. Sakrejda; S. Salur; J. Sandweiss; I. Savin; P. S. Sazhin; J. Schambach; R. P. Scharenberg; N. Schmitz; K. Schweda; J. Seger; P. Seyboth; E. Shahaliev; M. Shao; W. Shao; M. Sharma; W. Q. Shen; K. E. Shestermanov; S. S. Shimanskiy; E. Sichtermann; F. Simon; R. N. Singaraju; G. Skoro; N. Smirnov; R. Snellings; G. Sood; P. Sorensen; J. Sowinski; J. Speltz; H. M. Spinka; B. Srivastava; A. Stadnik; T. D. S. Stanislaus; R. Stock; A. Stolpovsky; M. Strikhanov; B. Stringfellow; A. A. P. Suaide; E. Sugarbaker; C. Suire; M. Sumbera; B. Surrow; T. J. M. Symons; A. S. de Toledo; P. Szarwas; A. Tai; J. Takahashi; A. H. Tang; T. Tarnowsky; D. Thein; J. H. Thomas; S. Timoshenko; M. Tokarev; T. A. Trainor; S. Trentalange; R. E. Tribble; O. D. Tsai; J. Ulery; T. Ullrich; D. G. Underwood; A. Urkinbaev; G. Van Buren; M. van Leeuwen; A. M. Vander Molen; R. Varma; I. M. Vasilevski; A. N. Vasiliev; R. Vernet; S. E. Vigdor; Y. P. Viyogi; S. Vokal; S. A. Voloshin; M. Vznuzdaev; W. T. Waggoner; F. Wang; G. Wang; X. L. Wang; Y. Wang; Z. M. Wang; H. Ward; J. W. Watson; J. C. Webb; R. Wells; G. D. Westfall; A. Wetzler; C. Whitten; H. Wieman; S. W. Wissink; R. Witt; J. Wood; J. Wu; N. Xu; Z. Xu; E. Yamamoto; P. Yepes; V. I. Yurevich; Y. V. Zanevsky; H. Zhang; W. M. Zhang; Z. P. Zhang; P. A. Zolnierczuk; R. Zoulkarneev; Y. Zoulkarneeva; A. N. Zubarev

2005-01-01

255

Strangelet search in Au plus Au collisions at root s(NN)=200 GeV  

Microsoft Academic Search

We have searched for strangelets in a triggered sample of 61 million central (top 4%) Au+Au collisions at root s(NN)=200 GeV near beam rapidities at the STAR solenoidal tracker detector at the BNL Relativistic Heavy Ion Collider. We have sensitivity to metastable strangelets with lifetimes of order >= 0.1 ns, in contrast to limits over ten times longer in BNL

B. I. Abelev; M. M. Aggarwal; Z. Ahammed; B. D. Anderson; D. Arkhipkin; G. S. Averichev; Y. Bai; J. Balewski; O. Barannikova; L. S. Barnby; J. Baudot; S. Baumgart; V. V. Belaga; A. Bellingeri-Laurikainen; R. Bellwied; F. Benedosso; R. R. Betts; S. Bhardwaj; A. Bhasin; A. K. Bhati; H. Bichsel; J. Bielcik; J. Bielcikova; L. C. Bland; S. L. Blyth; M. Bombara; B. E. Bonner; M. Botje; J. Bouchet; A. V. Brandin; A. Bravar; T. P. Burton; M. Bystersky; R. V. Cadman; X. Z. Cai; H. Caines; M. C. D. Sanchez; J. Callner; O. Catu; D. Cebra; Z. Chajecki; P. Chaloupka; S. Chattopadhyay; H. F. Chen; J. H. Chen; J. Cheng; M. Cherney; A. Chikanian; W. Christie; S. U. Chung; J. P. Coffin; T. M. Cormier; M. R. Cosentino; J. G. Cramer; H. J. Crawford; D. Das; S. Dash; M. Daugherity; M. M. de Moura; T. G. Dedovich; M. DePhillips; A. A. Derevschikov; L. Didenko; T. Dietel; P. Djawotho; S. M. Dogra; X. Dong; J. L. Drachenberg; J. E. Draper; F. Du; V. B. Dunin; J. C. Dunlop; M. R. D. Mazumdar; V. Eckardt; W. R. Edwards; L. G. Efimov; V. Emelianov; J. Engelage; G. Eppley; B. Erazmus; M. Estienne; P. Fachini; R. Fatemi; J. Fedorisin; A. Feng; P. Filip; E. Finch; V. Fine; Y. Fisyak; J. Fu; C. A. Gagliardi; L. Gaillard; M. S. Ganti; E. Garcia-Solis; V. Ghazikhanian; P. Ghosh; Y. G. Gorbunov; H. Gos; O. Grebenyuk; D. Grosnick; S. M. Guertin; Ksff Guimaraes; N. Gupta; B. Haag; T. J. Hallman; A. Hamed; J. W. Harris; W. He; M. Heinz; T. W. Henry; S. Hepplemann; B. Hippolyte; A. Hirsch; E. Hjort; A. M. Hoffman; G. W. Hoffmann; D. Hofman; R. Hollis; M. J. Horner; H. Z. Huang; E. W. Hughes; T. J. Humanic; G. Igo; A. Iordanova; P. Jacobs; W. W. Jacobs; P. Jakl; F. Jia; P. G. Jones; E. G. Judd; S. Kabana; K. Kang; J. Kapitan; M. Kaplan; D. Keane; A. Kechechyan; D. Kettler; V. Y. Khodyrev; B. C. Kim; J. Kiryluk; A. Kisiel; E. M. Kislov; S. R. Klein; A. G. Knospe; A. Kocoloski; D. D. Koetke; T. Kollegger; M. Kopytine; L. Kotchenda; V. Kouchpil; K. L. Kowalik; P. Kravtsov; V. I. Kravtsov; K. Krueger; C. Kuhn; A. I. Kulikov; A. Kumar; P. Kurnadi; A. A. Kuznetsov; M. A. C. Lamont; J. M. Landgraf; S. Lange; S. LaPointe; F. Laue; J. Lauret; A. Lebedev; R. Lednicky; C. H. Lee; S. Lehocka; M. J. LeVine; C. Li; Q. Li; Y. Li; G. Lin; X. Lin; S. J. Lindenbaum; M. A. Lisa; F. Liu; H. Liu; J. Liu; L. Liu; T. Ljubicic; W. J. Llope; R. S. Longacre; W. A. Love; Y. Lu; T. Ludlam; D. Lynn; G. L. Ma; J. G. Ma; Y. G. Ma; D. P. Mahapatra; R. Majka; L. K. Mangotra; R. Manweiler; S. Margetis; C. Markert; L. Martin; H. S. Matis; Y. A. Matulenko; C. J. McClain; T. S. McShane; Y. Melnick; A. Meschanin; J. Millane; M. L. Miller; N. G. Minaev; S. Mioduszewski; C. Mironov; A. Mischke; J. Mitchell; B. Mohanty; D. A. Morozov; M. G. Munhoz; B. K. Nandi; C. Nattrass; T. K. Nayak; J. M. Nelson; N. S. Nepali; P. K. Netrakanti; L. V. Nogach; S. B. Nurushev; G. Odyniec; A. Ogawa; V. Okorokov; M. Oldenburg; D. Olson; M. Pachr; S. K. Pal; Y. Panebratsev; A. I. Pavlinov; T. Pawlak; T. Peitzmann; V. Perevoztchikov; C. Perkins; W. Peryt; S. C. Phatak; M. Planinic; J. Pluta; N. Poljak; N. Porile; A. M. Poskanzer; M. Potekhin; E. Potrebenikova; Bvks Potukuchi; D. Prindle; C. Pruneau; J. Putschke; I. A. Qattan; R. Raniwala; S. Raniwala; R. L. Ray; D. Relyea; A. Ridiger; H. G. Ritter; J. B. Roberts; O. V. Rogachevskiy; J. L. Romero; A. Rose; C. Roy; L. Ruan; M. J. Russcher; R. Sahoo; I. Sakrejda; T. Sakuma; S. Salur; J. Sandweiss; M. Sarsour; P. S. Sazhin; J. Schambach; R. P. Scharenberg; N. Schmitz; J. Seger; I. Selyuzhenkov; P. Seyboth; A. Shabetai; E. Shahaliev; M. Shao; M. Sharma; W. Q. Shen; S. S. Shimanskiy; E. P. Sichtermann; F. Simon; R. N. Singaraju; N. Smirnov; R. Snellings; P. Sorensen; J. Sowinski; J. Speltz; H. M. Spinka; B. Srivastava; A. Stadnik; T. D. S. Stanislaus; D. Staszak; R. Stock; M. Strikhanov; B. Stringfellow; A. A. P. Suaide; M. C. Suarez; N. L. Subba; M. Sumbera; X. M. Sun; Z. Sun; B. Surrow; T. J. M. Symons; A. S. de Toledo; B. Szeliga; J. Takahashi; A. H. Tang; T. Tarnowsky; J. H. Thomas; A. R. Timmins; S. Timoshenko; M. Tokarev; T. A. Trainor; S. Trentalange; R. E. Tribble; O. D. Tsai; J. Ulery; T. Ullrich; D. G. Underwood; G. Van Buren; N. van der Kolk; M. van Leeuwen; A. M. Vander Molen; R. Varma; I. M. Vasilevski; A. N. Vasiliev; R. Vernet; S. E. Vigdor; Y. P. Viyogi; S. Vokal; S. A. Voloshin; W. T. Waggoner; F. Wang; G. Wang; J. S. Wang; X. L. Wang; Y. Wang; J. W. Watson; J. C. Webb; G. D. Westfall; A. Wetzler; C. Whitten; H. Wieman; S. W. Wissink; R. Witt; J. Wu; Y. Wu; N. Xu; Q. H. Xu; Z. Xu; P. Yepes; I. K. Yoo; Q. Yue; V. I. Yurevich; W. Zhan; H. Zhang; W. M. Zhang; Y. Zhang; Z. P. Zhang; Y. Zhao; C. Zhong; J. Zhou; R. Zoulkarneev; Y. Zoulkarneeva; A. N. Zubarev; J. X. Zuo

2007-01-01

256

????? correlations in central Au+Au collisions at VsNN=200 GeV  

Microsoft Academic Search

We report charged particle pair correlation analyses in the space of ?? (azimuth) and ?? (pseudorapidity), for central Au+Au collisions at ?sNN=200 GeV in the STAR detector. The analysis involves unlike-sign charged pairs and like-sign charged pairs, which are transformed into charge-dependent (CD) signals and charge-independent (CI) signals. We present detailed parametrizations of the data. A model featuring dense gluonic

J. Adams; Y. Bai; F. Benedosso; M. A. J. Botje; J. Castillo; O. Grebenyuk; A. Mischke; T. Peitzmann; M. J. Russcher; R. J. M. Snellings; N. van der Kolk; L. Barnby; J. Baudot; S. Bekele; V. Belaga; A. Bellingeri-Laurikainen; R. Bellwied; B. Bezverkhny; S. Bharadwaj; A. Bhasin; A. Bhati; H. Bichsel; J. Bielcik; J. Bielcikova; L. Bland; C. Blyth; S.-L. Blyth; B. Bonner; M. Botje; J. Bouchet; A. Brandin; A. Bravar; M. Bystersky; R. Cadman; X. Cai; H. Caines; M. Snchez; O. Catu; D. Cebra; Z. Chajecki; P. Chaloupka; S. Chattopadhyay; H. Chen; J. Chen; Y. Chen; J. Cheng; M. Cherney; A. Chikanian; H. Choi; W. Christie; J. Coffin; T. Cormier; M. Cosentino; J. Cramer; H. Crawford; D. Das; S. Das; M. Daugherity; M. Moura; T. Dedovich; M. DePhillips; A. Derevschikov; L. Didenko; T. Dietel; P. Djawotho; S. Dogra; W. Dong; X. Dong; J. Draper; F. Du; V. Dunin; J. Dunlop; M. Mazumdar; V. Eckardt; W. Edwards; L. Efimov; V. Emelianov; J. Engelage; G. Eppley; B. Erazmus; M. Estienne; P. Fachini; R. Fatemi; J. Fedorisin; K. Filimonov; P. Filip; E. Finch; V. Fine; Y. Fisyak; J. Fu; C. Gagliardi; L. Gaillard; J. Gans; M. Ganti; V. Ghazikhanian; P. Ghosh; J. Gonzalez; Y. Gorbunov; H. Gos; D. Grosnick; S. Guertin; K. Guimaraes; Y. Guo; N. Gupta; T. Gutierrez; B. Haag; T. Hallman; A. Hamed; J. Harris; W. He; M. Heinz; T. Henry; S. Hepplemann; B. Hippolyte; A. Hirsch; E. Hjort; G. Hoffmann; M. Horner; H. Huang; S. Huang; E. Hughes; T. Humanic; G. Igo; P. Jacobs; W. Jacobs; P. Jakl; F. Jia; H. Jiang; P. Jones; E. Judd; S. Kabana; K. Kang; J. Kapitan; M. Kaplan; D. Keane; A. Kechechyan; V. Khodyrev; B. Kim; J. Kiryluk; A. Kisiel; E. Kislov; S. Klein; D. Koetke; T. Kollegger; M. Kopytine; L. Kotchenda; V. Kouchpil; K. Kowalik; M. Kramer; P. Kravtsov; V. Kravtsov; K. Krueger; C. Kuhn; A. Kulikov; A. Kumar; A. Kuznetsov; M. Lamont; J. Landgraf; S. Lange; S. LaPointe; F. Laue; J. Lauret; A. Lebedev; R. Lednicky; C.-H. Lee; S. Lehocka; M. LeVine; C. Li; Q. Li; Y. Li; G. Lin; S. Lindenbaum; M. Lisa; F. Liu; H. Liu; J. Liu; L. Liu; Z. Liu; T. Ljubicic; W. Llope; H. Long; R. Longacre; M. Lopez-Noriega; W. Love; Y. Lu; T. Ludlam; D. Lynn; G. Ma; J. Ma; Y. Ma; D. Magestro; D. Mahapatra; R. Majka; L. Mangotra; R. Manweiler; S. Margetis; C. Markert; L. Martin; H. Matis; Yu. Matulenko; C. McClain; T. McShane; Yu. Melnick; A. Meschanin; M. Miller; N. Minaev; S. Mioduszewski; C. Mironov; D. Mishra; J. Mitchell; B. Mohanty; L. Molnar; C. Moore; D. Morozov; M. Munhoz; B. Nandi; C. Nattrass; T. Nayak; J. Nelson; P. Netrakanti; V. Nikitin; L. Nogach; S. Nurushev; G. Odyniec; A. Ogawa; V. Okorokov; M. Oldenburg; D. Olson; M. Pachr; S. Pal; Y. Panebratsev; S. Panitkin; A. Pavlinov; T. Pawlak; V. Perevoztchikov; C. Perkins; W. Peryt; V. Petrov; S. Phatak; R. Picha; M. Planinic; J. Pluta; N. Poljak; N. Porile; J. Porter; A. Poskanzer; M. Potekhin; E. Potrebenikova; B. Potukuchi; D. Prindle; C. Pruneau; J. Putschke; G. Rakness; R. Raniwala; S. Raniwala; R. Ray; S. Razin; J. Reinnarth; D. Relyea; F. Retiere; A. Ridiger; H. Ritter; J. Roberts; O. Rogachevskiy; J. Romero; A. Rose; C. Roy; L. Ruan; R. Sahoo; I. Sakrejda; S. Salur; J. Sandweiss; M. Sarsour; P. Sazhin; J. Schambach; R. Scharenberg; N. Schmitz; K. Schweda; J. Seger; I. Selyuzhenkov; P. Seyboth; A. Shabetai; E. Shahaliev; M. Shao; M. Sharma; W. Shen; S. Shimanskiy; E. Sichtermann; F. Simon; R. Singaraju; N. Smirnov; G. Sood; P. Sorensen; J. Sowinski; J. Speltz; H. Spinka; B. Srivastava; A. Stadnik; T. Stanislaus; R. Stock; A. Stolpovsky; M. Strikhanov; B. Stringfellow; A. Suaide; E. Sugarbaker; M. Sumbera; Z. Sun; B. Surrow; M. Swanger; T. Symons; A. Toledo; A. Tai; J. Takahashi; A. Tang; T. Tarnowsky; D. Thein; J. Thomas; A. Timmins; S. Timoshenko; M. Tokarev; S. Trentalange; R. Tribble; O. Tsai; J. Ulery; T. Ullrich; D. Underwood; G. Van Buren; M. Leeuwen; A. Molen; R. Varma; I. Vasilevski; A. Vasiliev; R. Vernet; S. Vigdor; Y. Viyogi; S. Vokal; S. Voloshin; W. Waggoner; F. Wang; G. Wang; J. Wang; X. Wang; Y. Wang; J. Watson; J. Webb; G. Westfall; A. Wetzler; C. Jr.; H. Wieman; S. Wissink; R. Witt; J. Wood; J. Wu; N. Xu; Q. Xu; Z. Xu; P. Yepes; I.-K. Yoo; V. Yurevich; W. Zhan; H. Zhang; W. Zhang; Y. Zhang; Z. Zhang; Y. Zhao; C. Zhong; R. Zoulkarneev; Y. Zoulkarneeva; A. Zubarev; J. Zuo

2007-01-01

257

Azimuthal anisotropy in Au plus Au collisions at root S-NN=200 GeV  

Microsoft Academic Search

The results from the STAR Collaboration on directed flow (v(1)), elliptic flow (v(2)), and the fourth harmonic (v(4)) in the anisotropic azimuthal distribution of particles from Au+Au collisions at root s(NN) = 200 GeV are summarized and compared with results from other experiments and theoretical models. Results for identified particles are presented and fit with a blast-wave model. Different anisotropic

J. Adams; M. M. Aggarwal; Z. Ahammed; J. Amonett; B. D. Anderson; D. Arkhipkin; G. S. Averichev; S. K. Badyal; Y. Bai; J. Balewski; O. Barannikova; L. S. Barnby; J. Baudot; S. Bekele; V. V. Belaga; R. Bellwied; J. Berger; B. I. Bezverkhny; S. Bharadwaj; A. Bhasin; A. K. Bhati; V. S. Bhatia; H. Bichsel; J. Bielcik; J. Bielcikova; A. Billmeier; L. C. Bland; C. O. Blyth; B. E. Bonner; M. Botje; A. Boucham; A. V. Brandin; A. Bravar; M. Bystersky; R. V. Cadman; X. Z. Cai; H. Caines; M. C. D. Sanchez; J. Castillo; O. Catu; D. Cebra; Z. Chajecki; P. Chaloupka; S. Chattopadhyay; H. F. Chen; Y. Chen; J. Cheng; M. Cherney; A. Chikanian; W. Christie; J. P. Coffin; T. M. Cormier; J. G. Cramer; H. J. Crawford; D. Das; S. Das; M. M. de Moura; A. A. Derevschikov; L. Didenko; T. Dietel; S. M. Dogra; W. J. Dong; X. Dong; J. E. Draper; F. Du; A. K. Dubey; V. B. Dunin; J. C. Dunlop; M. R. D. Mazumdar; V. Eckardt; W. R. Edwards; L. G. Efimov; V. Emelianov; J. Engelage; G. Eppley; B. Erazmus; M. Estienne; P. Fachini; J. Faivre; R. Fatemi; J. Fedorisin; K. Filimonov; P. Filip; E. Finch; V. Fine; Y. Fisyak; K. Fomenko; J. Fu; C. A. Gagliardi; L. Gaillard; J. Gans; M. S. Ganti; L. Gaudichet; F. Guerts; V. Ghazikhanian; P. Ghosh; J. E. Gonzalez; O. Grachov; O. Grebenyuk; D. Grosnick; S. M. Guertin; Y. Guo; A. Gupta; T. D. Gutierrez; T. J. Hallman; A. Hamed; D. Hardtke; J. W. Harris; M. Heinz; T. W. Henry; S. Hepplemann; B. Hippolyte; A. Hirsch; E. Hjort; G. W. Hoffmann; H. Z. Huang; S. L. Huang; E. W. Hughes; T. J. Humanic; G. Igo; A. Ishihara; P. Jacobs; W. W. Jacobs; M. Janik; H. Jiang; P. G. Jones; E. G. Judd; S. Kabana; K. Kang; M. Kaplan; D. Keane; V. Y. Khodyrev; J. Kiryluk; A. Kisiel; E. M. Kislov; J. Klay; S. R. Klein; D. D. Koetke; T. Kollegger; M. Kopytine; L. Kotchenda; M. Kramer; P. Kravtsov; V. I. Kravtsov; K. Krueger; C. Kuhn; A. I. Kulikov; A. Kumar; R. K. Kutuev; A. A. Kuznetsov; M. A. C. Lamont; J. M. Landgraf; S. Lange; F. Laue; J. Lauret; A. Lebedev; R. Lednicky; S. Lehocka; M. J. LeVine; C. Li; Q. Li; Y. Li; G. Lin; S. J. Lindenbaum; M. A. Lisa; F. Liu; L. Liu; Q. J. Liu; Z. Liu; T. Ljubicic; W. J. Llope; H. Long; R. S. Langacre; M. Lopez-Noriega; W. A. Love; Y. Lu; T. Ludlam; D. Lynn; G. L. Ma; J. G. Ma; Y. G. Ma; D. Magestro; S. Mahajan; D. P. Mahapatra; R. Majka; L. K. Mangotra; R. Manweiler; S. Margetis; C. Markert; L. Martin; J. N. Marx; H. S. Matis; Y. A. Matulenko; C. J. McClain; T. S. McShane; F. Meissner; Y. Melnick; A. Meschanin; M. L. Miller; N. G. Minaev; C. Mironov; A. Mischke; D. K. Mishra; J. Mitchell; B. Mohanty; L. Molnar; C. F. Moore; D. A. Morozov; M. G. Munhoz; B. K. Nandi; S. K. Nayak; T. K. Nayak; J. M. Nelson; P. K. Netrakanti; V. A. Nikitin; L. V. Nogach; S. B. Nurushev; G. Odyniec; A. Ogawa; V. Okorokov; M. Oldenburg; D. Olson; S. K. Pal; Y. Panebratsev; S. Y. Panitkin; A. I. Pavlinov; T. Pawlak; T. Peitzmann; V. Perevoztchikov; C. Perkins; W. Peryt; V. A. Petrov; S. C. Phatak; R. Picha; M. Planinic; J. Pluta; N. Porile; J. Porter; A. M. Poskanzer; M. Potekhin; E. Potrebenikova; B. V. K. S. Potukuchi; D. Prindle; C. Pruneau; J. Putschke; G. Rakness; R. Raniwala; S. Raniwala; O. Ravel; R. L. Ray; S. V. Razin; D. Reichhold; J. G. Reid; G. Renault; F. Retiere; A. Ridiger; H. G. Ritter; J. B. Roberts; O. V. Rogachevskiy; J. L. Romero; A. Rose; C. Roy; L. Ruan; R. Sahoo; I. Sakrejda; S. Salur; J. Sandweiss; M. Sarsour; I. Savin; P. S. Sazhin; J. Schambach; R. P. Scharenberg; N. Schmitz; K. Schweda; J. Seger; P. Seyboth; E. Shahaliev; M. Shao; W. Shao; M. Sharma; W. Q. Shen; K. E. Shestermanov; S. S. Shimanskiy; E. Sichtermann; F. Simon; R. N. Singaraju; G. Skoro; N. Smirnov; R. Snellings; G. Sood; P. Sorensen; J. Sowinski; J. Speltz; H. M. Spinka; B. Srivastava; A. Stadnik; T. D. S. Stanislaus; R. Stock; A. Stolpovsky; M. Strikhanov; B. Stringfellow; A. A. P. Suaide; E. Sugarbaker; C. Suire; M. Sumbera; B. Surrow; T. J. M. Symons; A. S. de Toledo; P. Szarwas; A. Tai; J. Takahashi; A. H. Tang; T. Tarnowsky; D. Thein; J. H. Thomas; S. Timoshenko; M. Tokarev; T. A. Trainor; S. Trentalange; R. E. Tribble; O. D. Tsai; J. Ulery; T. Ullrich; D. G. Underwood; A. Urkinbaev; G. van Buren; M. van Leeuwen; A. M. V. Molen; R. Varma; I. M. Vasilevski; A. N. Vasiliev; R. Vernet; S. E. Vigdor; Y. P. Viyogi; S. Vokal; S. A. Voloshin; M. Vznuzdaev; W. T. Waggoner; F. Wang; G. Wang; X. L. Wang; Y. Wang; Z. M. Wang; H. Ward; J. W. Watson; J. C. Webb; R. Wells; G. D. Westfall; A. Wetzler; C. Whitten; H. Wieman; S. W. Wissink; R. Witt; J. Wood; J. Wu; N. Xu; Z. Xu; E. Yamamoto; P. Yepes; V. I. Yurevich; Y. V. Zanevsky; H. Zhang; W. M. Zhang; Z. P. Zhang; R. Zoulkarneev; Y. Zoulkarneeva; A. N. Zubarev; A. Braem; M. Davenport; G. D. Cataldo; D. D. Bari; P. Martinengo; E. Nappi; G. Paic; E. Posa; F. Puiz; E. Schyns

2005-01-01

258

Some thoughts on di-jet correlation in Au + Au collisions from PHENIX  

SciTech Connect

PHENIX has measured the two particle azimuth correlation in Au + Au at {radical}(s) = 200 GeV. Jet shape and yield at the away side are found to be strongly modified at intermediate and low pT, and the modifications vary dramatically with pT and centrality. At high pT, away side jet peak reappears but the yield is suppressed. We discuss the possible physics pictures leading to these complicated modifications.

Jia Jiangyong [Columbia University, New York, NY 10027 (United States); Nevis Laboratories, Irvington, NY 10533 (United States)

2006-07-11

259

Development of new transient liquid phase system Au-Sn-Au for microsystem technology  

Microsoft Academic Search

In the last decade, microsystems evolved to decisive technology in many technical applications. With increasing requirements\\u000a on the performance of microsystems, more and more dissimilar materials are used in the same assembly. Correspondingly, suitable\\u000a joining methods are required to fulfil the requirements on good properties of joints. In this study, a new transient liquid\\u000a phase (TLP) system Au-Sn-Au was developed

Kirsten Bobzin; Nazlim Bagcivan; Lidong Zhao; Stefania Ferrara; Jan Perne

2010-01-01

260

Comparative toxicity study of Ag, Au, and AgAu bimetallic nanoparticles on Daphnia magna  

Microsoft Academic Search

A comparative assessment of the 48-h acute toxicity of aqueous nanoparticles synthesized using the same methodology, including\\u000a Au, Ag, and AgAu bimetallic nanoparticles, was conducted to determine their ecological effect in freshwater environments\\u000a through the use of Daphnia magna, using their mortality as a toxicological endpoint. D. magna are one of the standard organisms used for ecotoxicity studies due to

Ting Li; Brian Albee; Matti Alemayehu; Rocio Diaz; Leigha Ingham; Shawn Kamal; Maritza Rodriguez; Sandra Whaley Bishnoi

2010-01-01

261

Comparative toxicity study of Ag, Au, and Ag-Au bimetallic nanoparticles on Daphnia magna.  

PubMed

A comparative assessment of the 48-h acute toxicity of aqueous nanoparticles synthesized using the same methodology, including Au, Ag, and Ag-Au bimetallic nanoparticles, was conducted to determine their ecological effect in freshwater environments through the use of Daphnia magna, using their mortality as a toxicological endpoint. D. magna are one of the standard organisms used for ecotoxicity studies due to their sensitivity to chemical toxicants. Particle suspensions used in toxicity testing were well-characterized through a combination of absorbance measurements, atomic force or electron microscopy, flame atomic absorption spectrometry, and dynamic light scattering to determine composition, aggregation state, and particle size. The toxicity of all nanoparticles tested was found to be dose and composition dependent. The concentration of Au nanoparticles that killed 50% of the test organisms (LC(50)) ranged from 65-75 mg/L. In addition, three different sized Ag nanoparticles (diameters = 36, 52, and 66 nm) were studied to analyze the toxicological effects of particle size on D. magna; however, it was found that toxicity was not a function of size and ranged from 3-4 ?g/L for all three sets of Ag nanoparticles tested. This was possibly due to the large degree of aggregation when these nanoparticles were suspended in standard synthetic freshwater. Moreover, the LC(50) values for Ag-Au bimetallic nanoparticles were found to be between that of Ag and Au but much closer to that of Ag. The bimetallic particles containing 80% Ag and 20% Au were found to have a significantly lower toxicity to Daphnia (LC(50) of 15 ?g/L) compared to Ag nanoparticles, while the toxicity of the nanoparticles containing 20% Ag and 80% Au was greater than expected at 12 ?g/L. The comparison results confirm that Ag nanoparticles were much more toxic than Au nanoparticles, and that the introduction of gold into silver nanoparticles may lower their environmental impact by lowering the amount of Ag which is bioavailable. PMID:20577719

Li, Ting; Albee, Brian; Alemayehu, Matti; Diaz, Rocio; Ingham, Leigha; Kamal, Shawn; Rodriguez, Maritza; Bishnoi, Sandra Whaley

2010-09-01

262

Direct Photon Production in Au+Au Collisions at RHIC-PHENIX Experiment  

E-print Network

Direct photons have been measured with the PHENIX experiment in Au+Au collisions at $\\sqrt{s_\\mathrm{NN}}$ = 200 GeV. The direct photon result obtained with PHENIX-EMCal up to 18 GeV/$c$ is consistent with the NLO pQCD calculation scaled by the nuclear overlap function. The measurement using internal conversion of photons into $e^+e^-$ shows the enhancement of the yield comparing with NLO pQCD calculation.

Tadaaki Isobe

2006-09-18

263

Pion Interferometry of (sNN) = 130 GeV Au+Au Collisions at RHIC  

Microsoft Academic Search

Two-pion correlation functions in Au+Au collisions at (sNN) = 130 GeV have been measured by the STAR (solenoidal tracker at RHIC) detector. The source size extracted by fitting the correlations grows with event multiplicity and decreases with transverse momentum. Anomalously large sizes or emission durations, which have been suggested as signals of quark-gluon plasma formation and rehadronization, are not observed.

C. Adler; Z. Ahammed; C. Allgower; J. Amonett; B. D. Anderson; M. Anderson; G. S. Averichev; J. Balewski; O. Barannikova; L. S. Barnby; J. Baudot; S. Bekele; V. V. Belaga; R. Bellwied; J. Berger; H. Bichsel; L. C. Bland; C. O. Blyth; B. E. Bonner; R. Bossingham; A. Boucham; A. Brandin; R. V. Cadman; H. Caines; M. Caldern de La Barca Snchez; A. Cardenas; J. Carroll; J. Castillo; M. Castro; D. Cebra; S. Chattopadhyay; M. L. Chen; Y. Chen; S. P. Chernenko; M. Cherney; A. Chikanian; B. Choi; W. Christie; J. P. Coffin; L. Conin; T. M. Cormier; J. G. Cramer; H. J. Crawford; M. Demello; W. S. Deng; A. A. Derevschikov; L. Didenko; J. E. Draper; V. B. Dunin; J. C. Dunlop; V. Eckardt; L. G. Efimov; V. Emelianov; J. Engelage; G. Eppley; B. Erazmus; P. Fachini; V. Faine; E. Finch; Y. Fisyak; D. Flierl; K. J. Foley; J. Fu; N. Gagunashvili; J. Gans; L. Gaudichet; M. Germain; F. Geurts; V. Ghazikhanian; J. Grabski; O. Grachov; D. Greiner; V. Grigoriev; M. Guedon; E. Gushin; T. J. Hallman; D. Hardtke; J. W. Harris; M. Heffner; S. Heppelmann; T. Herston; B. Hippolyte; A. Hirsch; E. Hjort; G. W. Hoffmann; M. Horsley; H. Z. Huang; T. J. Humanic; H. Hmmler; G. Igo; A. Ishihara; Yu. I. Ivanshin; P. Jacobs; W. W. Jacobs; M. Janik; I. Johnson; P. G. Jones; E. Judd; M. Kaneta; M. Kaplan; D. Keane; A. Kisiel; J. Klay; S. R. Klein; A. S. Konstantinov; L. Kotchenda; A. D. Kovalenko; M. Kramer; P. Kravtsov; K. Krueger; C. Kuhn; A. I. Kulikov; G. J. Kunde; C. L. Kunz; R. Kh. Kutuev; A. A. Kuznetsov; L. Lakehal-Ayat; J. Lamas-Valverde; M. A. Lamont; J. M. Landgraf; S. Lange; C. P. Lansdell; B. Lasiuk; F. Laue; A. Lebedev; T. Lecompte; R. Lednick; V. M. Leontiev; M. J. Levine; Q. Li; S. J. Lindenbaum; M. A. Lisa; T. Ljubicic; W. J. Llope; G. Locurto; H. Long; R. S. Longacre; M. Lopez-Noriega; W. A. Love; D. Lynn; R. Majka; S. Margetis; L. Martin; J. Marx; H. S. Matis; Yu. A. Matulenko; T. S. McShane; F. Meissner; Yu. Melnick; A. Meschanin; M. Messer; M. L. Miller; Z. Milosevich; N. G. Minaev; J. Mitchell; V. A. Moiseenko; D. Moltz; C. F. Moore; V. Morozov; M. M. de Moura; M. G. Munhoz; G. S. Mutchler; J. M. Nelson; P. Nevski; V. A. Nikitin; L. V. Nogach; B. Norman; S. B. Nurushev; G. Odyniec; A. Ogawa; V. Okorokov; M. Oldenburg; D. Olson; G. Paic; S. U. Pandey; Y. Panebratsev; S. Y. Panitkin; A. I. Pavlinov; T. Pawlak; V. Perevoztchikov; W. Peryt; V. A. Petrov; W. Pinganaud; E. Potrebenikova; J. Pluta; N. Porile; J. Porter; A. M. Poskanzer; D. Prindle; C. Pruneau; S. Radomski; G. Rai; O. Ravel; R. L. Ray; S. V. Razin; D. Reichhold; J. G. Reid; F. Retiere; A. Ridiger; H. G. Ritter; J. B. Roberts; O. V. Rogachevski; J. L. Romero; C. Roy; D. Russ; V. Rykov; I. Sakrejda; J. Sandweiss; A. C. Saulys; I. Savin; J. Schambach; R. P. Scharenberg; K. Schweda; N. Schmitz; L. S. Schroeder; A. Schttauf; J. Seger; D. Seliverstov; P. Seyboth; E. Shahaliev; K. E. Shestermanov; S. S. Shimanskii; V. S. Shvetcov; G. Skoro; N. Smirnov; R. Snellings; J. Sowinski; H. M. Spinka; B. Srivastava; E. J. Stephenson; R. Stock; A. Stolpovsky; M. Strikhanov; B. Stringfellow; H. Stroebele; C. Struck; A. A. Suaide; E. Sugarbaker; C. Suire; M. Sumbera; T. J. Symons; A. Szanto de Toledo; P. Szarwas; J. Takahashi; A. H. Tang; J. H. Thomas; V. Tikhomirov; T. A. Trainor; S. Trentalange; M. Tokarev; M. B. Tonjes; V. Trofimov; O. Tsai; K. Turner; T. Ullrich; D. G. Underwood; G. van Buren; A. M. Vandermolen; A. Vanyashin; I. M. Vasilevski; A. N. Vasiliev; S. E. Vigdor; S. A. Voloshin; F. Wang; H. Ward; J. W. Watson; R. Wells; T. Wenaus; G. D. Westfall; C. Whitten; H. Wieman; R. Willson; S. W. Wissink; R. Witt; N. Xu; Z. Xu; A. E. Yakutin; E. Yamamoto; J. Yang; P. Yepes; A. Yokosawa; V. I. Yurevich; Y. V. Zanevski; I. Zborovsk; W. M. Zhang; R. Zoulkarneev; A. N. Zubarev

2001-01-01

264

Elliptic Flow in Au+Au Collisions at &surd;sNN = 130 GeV  

Microsoft Academic Search

Elliptic flow from nuclear collisions is a hadronic observable sensitive to the early stages of system evolution. We report first results on elliptic flow of charged particles at midrapidity in Au+Au collisions at sNN = 130 GeV using the STAR Time Projection Chamber at the Relativistic Heavy Ion Collider. The elliptic flow signal, v2, averaged over transverse momentum, reaches values

K. H. Ackermann; N. Adams; C. Adler; Z. Ahammed; S. Ahmad; C. Allgower; J. Amsbaugh; M. Anderson; E. Anderssen; H. Arnesen; L. Arnold; G. S. Averichev; A. Baldwin; J. Balewski; O. Barannikova; L. S. Barnby; J. Baudot; M. Beddo; S. Bekele; V. V. Belaga; R. Bellwied; S. Bennett; J. Bercovitz; J. Berger; W. Betts; H. Bichsel; F. Bieser; L. C. Bland; M. Bloomer; C. O. Blyth; J. Boehm; B. E. Bonner; D. Bonnet; R. Bossingham; M. Botlo; A. Boucham; N. Bouillo; S. Bouvier; K. Bradley; F. P. Brady; E. S. Braithwaite; W. Braithwaite; A. Brandin; R. L. Brown; G. Brugalette; C. Byrd; H. Caines; M. Caldern de La Barca Snchez; A. Cardenas; L. Carr; J. Carroll; J. Castillo; B. Caylor; D. Cebra; S. Chatopadhyay; M. L. Chen; W. Chen; Y. Chen; S. P. Chernenko; M. Cherney; A. Chikanian; B. Choi; J. Chrin; W. Christie; J. P. Coffin; L. Conin; C. Consiglio; T. M. Cormier; J. G. Cramer; H. J. Crawford; V. I. Danilov; D. Dayton; M. Demello; W. S. Deng; A. A. Derevschikov; M. Dialinas; H. Diaz; P. A. Deyoung; L. Didenko; D. Dimassimo; J. Dioguardi; W. Dominik; C. Drancourt; J. E. Draper; V. B. Dunin; J. C. Dunlop; V. Eckardt; W. R. Edwards; L. G. Efimov; T. Eggert; V. Emelianov; J. Engelage; G. Eppley; B. Erazmus; A. Etkin; P. Fachini; C. Feliciano; D. Ferenc; M. I. Ferguson; H. Fessler; E. Finch; V. Fine; Y. Fisyak; D. Flierl; I. Flores; K. J. Foley; D. Fritz; N. Gagunashvili; J. Gans; M. Gazdzicki; M. Germain; F. Geurts; V. Ghazikhanian; C. Gojak; J. Grabski; O. Grachov; M. Grau; D. Greiner; L. Greiner; V. Grigoriev; D. Grosnick; J. Gross; G. Guilloux; E. Gushin; J. Hall; T. J. Hallman; D. Hardtke; G. Harper; J. W. Harris; P. He; M. Heffner; S. Heppelmann; T. Herston; D. Hill; B. Hippolyte; A. Hirsch; E. Hjort; G. W. Hoffmann; M. Horsley; M. Howe; H. Z. Huang; T. J. Humanic; H. Hmmler; W. Hunt; J. Hunter; G. J. Igo; A. Ishihara; Yu. I. Ivanshin; P. Jacobs; W. W. Jacobs; S. Jacobson; R. Jared; P. Jensen; I. Johnson; P. G. Jones; E. Judd; M. Kaneta; M. Kaplan; D. Keane; V. P. Kenney; A. Khodinov; J. Klay; S. R. Klein; A. Klyachko; G. Koehler; A. S. Konstantinov; V. Kormilitsyne; L. Kotchenda; I. Kotov; A. D. Kovalenko; M. Kramer; P. Kravtsov; K. Krueger; T. Krupien; P. Kuczewski; C. Kuhn; G. J. Kunde; C. L. Kunz; R. Kh. Kutuev; A. A. Kuznetsov; L. Lakehal-Ayat; J. Lamas-Valverde; M. A. Lamont; J. M. Landgraf; S. Lange; C. P. Lansdell; B. Lasiuk; F. Laue; A. Lebedev; T. Lecompte; W. J. Leonhardt; V. M. Leontiev; P. Leszczynski; M. J. Levine; Q. Li; Z. Li; C.-J. Liaw; J. Lin; S. J. Lindenbaum; V. Lindenstruth; P. J. Lindstrom; M. A. Lisa; H. Liu; T. Ljubicic; W. J. Llope; G. Locurto; H. Long; R. S. Longacre; M. Lopez-Noriega; D. Lopiano; W. A. Love; J. R. Lutz; D. Lynn; L. Madansky; R. Maier; R. Majka; A. Maliszewski; S. Margetis; K. Marks; R. Marstaller; L. Martin; J. Marx; H. S. Matis; Yu. A. Matulenko; E. A. Matyushevski; C. McParland; T. S. McShane; J. Meier; Yu. Melnick; A. Meschanin; P. Middlekamp; N. Mikhalin; B. Miller; Z. Milosevich; N. G. Minaev; B. Minor; J. Mitchell; E. Mogavero; V. A. Moiseenko; D. Moltz; C. F. Moore; V. Morozov; R. Morse; M. M. de Moura; M. G. Munhoz; G. S. Mutchler; J. M. Nelson; P. Nevski; T. Ngo; M. Nguyen; T. Nguyen; V. A. Nikitin; L. V. Nogach; T. Noggle; B. Norman; S. B. Nurushev; T. Nussbaum; J. Nystrand; G. Odyniec; A. Ogawa; C. A. Ogilvie; K. Olchanski; M. Oldenburg; D. Olson; G. A. Ososkov; G. Ott; D. Padrazo; G. Paic; S. U. Pandey; Y. Panebratsev; S. Y. Panitkin; A. I. Pavlinov; T. Pawlak; M. Pentia; V. Perevotchikov; W. Peryt; V. A. Petrov; W. Pinganaud; S. Pirogov; E. Platner; J. Pluta; I. Polk; N. Porile; J. Porter; A. M. Poskanzer; E. Potrebenikova; D. Prindle; C. Pruneau; J. Puskar-Pasewicz; G. Rai; J. Rasson; O. Ravel; R. L. Ray; S. V. Razin; D. Reichhold; J. Reid; R. E. Renfordt; F. Retiere; A. Ridiger; J. Riso; H. G. Ritter; J. B. Roberts; D. Roehrich; O. V. Rogachevski; J. L. Romero; C. Roy; D. Russ; V. Rykov; I. Sakrejda; R. Sanchez; Z. Sandler; J. Sandweiss; P. Sappenfield; A. C. Saulys; I. Savin; J. Schambach; R. P. Scharenberg; J. Scheblien; R. Scheetz; R. Schlueter; N. Schmitz; L. S. Schroeder; M. Schulz; A. Schttauf; J. Sedlmeir; J. Seger; D. Seliverstov; J. Seyboth; P. Seyboth; R. Seymour; E. I. Shakaliev; K. E. Shestermanov; Y. Shi; S. S. Shimanskii; D. Shuman; V. S. Shvetcov; G. Skoro; N. Smirnov; L. P. Smykov; R. Snellings; K. Solberg; J. Sowinski; H. M. Spinka; B. Srivastava; E. J. Stephenson; R. Stock; A. Stolpovsky; N. Stone; R. Stone; M. Strikhanov; B. Stringfellow; H. Stroebele; C. Struck; A. A. Suaide; E. Sugarbaker; C. Suire; T. J. Symons; J. Takahashi; A. H. Tang; A. Tarchini; J. Tarzian; J. H. Thomas; V. Tikhomirov; A. Szanto de Toledo; S. Tonse; T. Trainor; S. Trentalange; M. Tokarev; M. B. Tonjes; V. Trofimov; O. Tsai; K. Turner; T. Ullrich; D. G. Underwood; I. Vakula; G. van Buren; A. M. Vandermolen

2001-01-01

265

Les sepsis intra-abdominaux diffus post-operatoires: aspects ?pid?miologiques, diagnostiques et th?rapeutiques au Service de Chirurgie G?n?rale du CHU Aristide Le Dantec de Dakar  

PubMed Central

Les sepsis intra-abdominaux diffus postopratoires (SIADPO) ont encore une frquence alarmante. Ils mettent rapidement en cause l'intgrit des grandes fonctions. Le but de cette tude tait dvaluer leur prise en charge. Il s'agissait d'une tude rtrospective descriptive sur 10 ans (janvier 2000 dcembre 2009) portant sur 45 cas de SIADPO. Nous avons tudi les aspects pidmiologiques, diagnostiques, thrapeutiques et pronostiques. Il s'agissait de 45 cas dont 25 hommes et 20 femmes avec un sex-ratio de 1,25. Lge moyen des patients tait de 34 ans avec des extrmes de 20 et 70 ans. Le SIADPO survenait au dcours d'une intervention septique en urgence dans 68,8% des cas. Le dlai moyen de diagnostic tait de 10 jours. Les signes cliniques taient domins par les troubles du transit (80%), la douleur abdominale (77,7%), la fivre (66,7%), le mtorisme abdominal (33%). Une hyperleucocytose a t retrouve dans 60% des cas. Le liquide intra-abdominal tait polymicrobien. Tous les patients ont bnfici d'une laparotomie xipho-pubienne dans les 72 heures. Nous avons not 82,2% de pritonites secondaires notamment post-opratoires et 17,8% de pritonites persistantes. Les tiologies taient domines par le lchage de suture digestive ou gyncologique (66,7% des cas). La stomie digestive a t le geste le plus frquemment ralis (41%). La gurison est survenue chez 75,5%. La morbidit opratoire tait de 42% faite de suppuration paritale (10 cas), de fistule entrocutane (6 cas), dviscration (2 cas). La mortalit tait de 24,5% en rapport avec le retard diagnostique et les dfaillances multi-viscrales. Les interventions septiques en urgence sont les plus grandes pourvoyeuses de SIADPO. La mortalit reste encore leve en rapport avec la dfaillance viscrale. La prcocit du diagnostic et de la rintervention conditionnent ainsi le pronostic. PMID:25161748

Toure, Alpha Oumar; Cisse, Mamadou; Ka, Ibrahima; Dieng, Madieng; Konate, Ibrahima; Ka, Ousmane; Toure, Cheikh Tidiane

2014-01-01

266

LE BULLETIN DE L'EPI N 63 INFORMATIQUE AU COURS MOYEN : QUE FAIRE ? INFORMATIQUE AU COURS MOYEN QUE FAIRE?  

E-print Network

et éthiques", "La technologie informatique (le micro-ordinateur ; automates programmables et robots compléments au programmes et instructions : 2.1. un texte du 1/12/85 intitulé : INFORMATIQUE (Sciences et193 LE BULLETIN DE L'EPI N° 63 INFORMATIQUE AU COURS MOYEN : QUE FAIRE ? INFORMATIQUE AU COURS

Paris-Sud XI, Université de

267

Highly efficient electrogenerated chemiluminescence of Au38 nanoclusters.  

PubMed

An investigation of mechanisms for the near-infrared (NIR) electrogenerated chemiluminescence/electrochemiluminescence (ECL) of Au38(SC2H4Ph)24 (Au38, SC2H4Ph = 2-phenylethanethiol) nanoclusters both in annihilation and coreactant paths is reported. Essentially, no ECL emission was produced in the annihilation route over the potential range of the accessible redox states of Au38, because of the short lifetime and/or low reactivity of the electrogenerated Au38 intermediates necessary for ECL. Highly efficient light emission with a nominal peak wavelength of 930 nm in the NIR region was observed in the anodic region upon addition of tri-n-propylamine (TPrA) as the coreactant. The ECL mechanisms were elucidated by means of ECL-potential curves and spooling ECL spectroscopy. It was discovered that the Au38(+*) (and also Au38(3+*)) were electrogenerated as the major excited species in the light emission processes. Benzoyl peroxide was also used as a coreactant in the cathodic potential range from which benzoate radicals, with a high oxidizing power, were formed. These radicals accepted electrons from the electrogenerated Au38(2-) HOMO, resulting in the Au38(-*) excited state that emitted light at 930 nm. The photoluminescence of the various Au38 charge states, namely, Au38(2-), Au38(-), Au38(0), Au38(+), Au38(2+), and Au38(4+), electrogenerated in situ, indicated no significant difference in the emission peak wavelength. This information allowed a careful mapping of the relevant ECL mechanisms. It was found that the ECL efficiency could reach an efficiency of 3.5 times as high as that of the Ru(bpy)3(2+)/TPrA system. PMID:25088234

Hesari, Mahdi; Workentin, Mark Steven; Ding, Zhifeng

2014-08-26

268

Enhanced spin pumping at yttrium iron garnet/Au interfaces  

SciTech Connect

Spin injection across the ferrimagnetic insulator yttrium iron garnet (YIG)/normal metal Au interface was studied using ferromagnetic resonance. The spin mixing conductance was determined by comparing the Gilbert damping parameter {alpha} in YIG/Au and YIG/Au/Fe heterostructures. The main purpose of this study was to correlate the spin pumping efficiency with chemical modifications of the YIG film surface using in situ etching and deposition techniques. By means of Ar{sup +} ion beam etching, one is able to increase the spin mixing conductance at the YIG/Au interface by a factor of 5 compared to the untreated YIG/Au interface.

Burrowes, C.; Heinrich, B.; Kardasz, B.; Montoya, E. A.; Girt, E. [Physics Department, Simon Fraser University, 8888 University Dr., Burnaby, British Columbia V5A 1S6 (Canada); Sun Yiyan; Song, Young-Yeal; Wu Mingzhong [Physics Department, Colorado State University, Fort Collins, Colorado 80523 (United States)

2012-02-27

269

Cooperative Assembly of Magic Number C60-Au Complexes  

NASA Astrophysics Data System (ADS)

We report the assembly of magic number (C60)m-(Au)n complexes on the Au(111) surface. These complexes have a unique structure consisting of a single atomic layer Au island wrapped by a self-selected number (seven, ten, or twelve) of C60 molecules. The smallest structure consisting of 7 C60 molecules and 19 Au atoms, stable up to 400 K, has a preferred orientation on the surface. We propose a globalized metal-organic coordination mechanism for the stability of the (C60)m-(Au)n complexes.

Xie, Yang-Chun; Tang, Lin; Guo, Quanmin

2013-11-01

270

First results on d+Au collisions from PHOBOS  

NASA Astrophysics Data System (ADS)

We have measured transverse momentum distributions of charged hadrons produced in d+Au collisions at ?SNN = 200 GeV, in the range 0.25 < pT < 6.0 GeV/c. With increasing collision centrality, the yield at high transverse momenta increases more rapidly than the overall particle density, leading to a strong modification of the spectral shape. This change in spectral shape is qualitatively different from observations in Au+Au collisions at the same energy. The results provide important information for discriminating between different models for the suppression of high-pT hadrons observed in Au+Au collisions.

Back, B. B.; Baker, M. D.; Ballintijn, M.; Barton, D. S.; Becker, B.; Betts, R. R.; Bickley, A. A.; Bindel, R.; Budzanowski, A.; Busza, W.; Carroll, A.; Decowski, M. P.; Garca, E.; Gburek, T.; George, N.; Gulbrandsen, K.; Gushue, S.; Halliwell, C.; Hamblen, J.; Harrington, A. S.; Henderson, C.; Hofman, D. J.; Hollis, R. S.; Ho?y?ski, R.; Holzman, B.; Iordanova, A.; Johnson, E.; Kane, J. L.; Khan, N.; Kulinich, P.; Kuo, C. M.; Lee, J. W.; Lin, W. T.; Manly, S.; Mignerey, A. C.; Noell, A.; Nouicer, R.; Olszewski, A.; Pak, R.; Park, I. C.; Pernegger, H.; Reed, C.; Remsberg, L. P.; Roland, C.; Roland, G.; Sagerer, J.; Sarin, P.; Sawicki, P.; Sedykh, I.; Skulski, W.; Smith, C. E.; Steinberg, P.; Stephans, G. S. F.; Sukhanov, A.; Teng, R.; Tonjes, M. B.; Trzupek, A.; Vale, C.; van Nieuwenhuizen, G. J.; Verdier, R.; Veres, G. I.; Wadsworth, B.; Wolfs, F. L. H.; Wosiek, B.; Wo?niak, K.; Wuosmaa, A. H.; Wys?ouch, B.; Zhang, J.

2004-02-01

271

Di-Hadron Correlations with Identified Leading Hadrons in 200 GeV Au+Au and d+Au Collisions at STAR  

E-print Network

The STAR collaboration presents new two-dimensional di-hadron correlations with leading hadrons in 200 GeV central Au+Au and minimum bias d+Au collisions to explore hadronization mechanisms in the quark gluon plasma. The enhancement of the jet-like yield for leading pions in Au+Au data with respect to the d+Au reference and the absence of enhancement for leading non-pions (protons and kaons) are discussed within the context of quark recombination. The correlated yield at large angles, specifically in the \\emph{ridge region}, is significantly higher for leading non-pions than pions. The consistencies of the constituent quark scaling, azimuthal harmonic model and a mini-jet modification model description of the data are tested, providing further constraints on hadronization.

Abdelwahab, N M; Adkins, J K; Agakishiev, G; Aggarwal, M M; Ahammed, Z; Alekseev, I; Alford, J; Anson, C D; Aparin, A; Arkhipkin, D; Aschenauer, E C; Averichev, G S; Banerjee, A; Beavis, D R; Bellwied, R; Bhasin, A; Bhati, A K; Bhattarai, P; Bielcik, J; Bielcikova, J; Bland, L C; Bordyuzhin, I G; Borowski, W; Bouchet, J; Brandin, A V; Brovko, S G; Bltmann, S; Bunzarov, I; Burton, T P; Butterworth, J; Caines, H; Snchez, M Caldern de la Barca; Campbell, J M; Cebra, D; Cendejas, R; Cervantes, M C; Chaloupka, P; Chang, Z; Chattopadhyay, S; Chen, H F; Chen, J H; Chen, L; Cheng, J; Cherney, M; Chikanian, A; Christie, W; Chwastowski, J; Codrington, M J M; Contin, G; Cramer, J G; Crawford, H J; Cui, X; Das, S; Leyva, A Davila; De Silva, L C; Debbe, R R; Dedovich, T G; Deng, J; Derevschikov, A A; de Souza, R Derradi; di Ruzza, B; Didenko, L; Dilks, C; Ding, F; Djawotho, P; Dong, X; Drachenberg, J L; Draper, J E; Du, C M; Dunkelberger, L E; Dunlop, J C; Efimov, L G; Engelage, J; Engle, K S; Eppley, G; Esha, R; Eun, L; Evdokimov, O; Eyser, O; Fatemi, R; Fazio, S; Fedorisin, J; Filip, P; Fisyak, Y; Flores, C E; Gagliardi, C A; Gangadharan, D R; Garand, D; Geurts, F; Gibson, A; Girard, M; Gliske, S; Greiner, L; Grosnick, D; Gunarathne, D S; Guo, Y; Gupta, A; Gupta, S; Guryn, W; Haag, B; Hamad, A; Hamed, A; Han, L-X; Haque, R; Harris, J W; Heppelmann, S; Hirsch, A; Hoffmann, G W; Hofman, D J; Horvat, S; Huang, B; Huang, H Z; Huang, X; Huck, P; Humanic, T J; Igo, G; Jacobs, W W; Jang, H; Judd, E G; Kabana, S; Kalinkin, D; Kang, K; Kauder, K; Ke, H W; Keane, D; Kechechyan, A; Kesich, A; Khan, Z H; Kikola, D P; Kisel, I; Kisiel, A; Koetke, D D; Kollegger, T; Konzer, J; Koralt, I; Kosarzewski, L K; Kotchenda, L; Kraishan, A F; Kravtsov, P; Krueger, K; Kulakov, I; Kumar, L; Kycia, R A; Lamont, M A C; Landgraf, J M; Landry, K D; Lauret, J; Lebedev, A; Lednicky, R; Lee, J H; Li, C; Li, W; Li, X; Li, X; Li, Y; Li, Z M; Lisa, M A; Liu, F; Ljubicic, T; Llope, W J; Lomnitz, M; Longacre, R S; Luo, X; Ma, G L; Ma, Y G; Mahapatra, D P; Majka, R; Margetis, S; Markert, C; Masui, H; Matis, H S; McDonald, D; McShane, T S; Minaev, N G; Mioduszewski, S; Mohanty, B; Mondal, M M; Morozov, D A; Mustafa, M K; Nandi, B K; Nasim, Md; Nayak, T K; Nelson, J M; Nigmatkulov, G; Nogach, L V; Noh, S Y; Novak, J; Nurushev, S B; Odyniec, G; Ogawa, A; Oh, K; Ohlson, A; Okorokov, V; Oldag, E W; Olvitt, D L; Page, B S; Pan, Y X; Pandit, Y; Panebratsev, Y; Pawlak, T; Pawlik, B; Pei, H; Perkins, C; Pile, P; Planinic, M; Pluta, J; Poljak, N; Poniatowska, K; Porter, J; Poskanzer, A M; Pruthi, N K; Przybycien, M; Putschke, J; Qiu, H; Quintero, A; Ramachandran, S; Raniwala, R; Raniwala, S; Ray, R L; Riley, C K; Ritter, H G; Roberts, J B; Rogachevskiy, O V; Romero, J L; Ross, J F; Roy, A; Ruan, L; Rusnak, J; Rusnakova, O; Sahoo, N R; Sahu, P K; Sakrejda, I; Salur, S; Sandacz, A; Sandweiss, J; Sangaline, E; Sarkar, A; Schambach, J; Scharenberg, R P; Schmah, A M; Schmidke, W B; Schmitz, N; Seger, J; Seyboth, P; Shah, N; Shahaliev, E; Shanmuganathan, P V; Shao, M; Sharma, B; Shen, W Q; Shi, S S; Shou, Q Y; Sichtermann, E P; Simko, M; Skoby, M J; Smirnov, D; Smirnov, N; Solanki, D; Sorensen, P; Spinka, H M; Srivastava, B; Stanislaus, T D S; Stevens, J R; Stock, R; Strikhanov, M; Stringfellow, B; Sumbera, M; Sun, X; Sun, X M; Sun, Y; Sun, Z; Surrow, B; Svirida, D N; Symons, T J M; Szelezniak, M A; Takahashi, J; Tang, A H; Tang, Z; Tarnowsky, T; Thomas, J H; Timmins, A R; Tlusty, D; Tokarev, M; Trentalange, S; Tribble, R E; Tribedy, P; Trzeciak, B A; Tsai, O D; Turnau, J; Ullrich, T; Underwood, D G; Van Buren, G; van Nieuwenhuizen, G; Vandenbroucke, M; Vanfossen,, J A; Varma, R; Vasconcelos, G M S; Vasiliev, A N; Vertesi, R; Videbk, F; Viyogi, Y P; Vokal, S; Vossen, A; Wada, M; Wang, F; Wang, G; Wang, H; Wang, J S; Wang, X L; Wang, Y; Wang, Y; Webb, G; Webb, J C; Wen, L; Westfall, G D; Wieman, H; Wissink, S W; Wu, Y F; Xiao, Z; Xie, W; Xin, K; Xu, H; Xu, J; Xu, N; Xu, Q H; Xu, Y; Xu, Z; Yan, W; Yang, C; Yang, Y; Yang, Y; Ye, Z; Yepes, P; Yi, L; Yip, K; Yoo, I-K; Yu, N; Zbroszczyk, H; Zha, W; Zhang, J B; Zhang, J L; Zhang, S; Zhang, X P; Zhang, Y; Zhang, Z P; Zhao, F; Zhao, J; Zhong, C; Zhu, X; Zhu, Y H; Zoulkarneeva, Y; Zyzak, M

2014-01-01

272

Interlayer diffusion of Au atoms in a heteroepitaxial system  

NASA Astrophysics Data System (ADS)

In heteroepitaxy, thin-film growth proceeds in two-dimensional layer-by-layer, three-dimensional island, or layer-plus-island modes depending on the growth conditions. Interlayer mass transport plays a crucial role in determining the growth mode. We investigate interlayer diffusion of Au atoms from Au islands grown on Ir(111) by scanning tunneling microscopy (STM) and kinetic Monte Carlo (KMC) simulations. STM measurements reveal that the first Au layer on Ir(111) grows in a complete layer at 100 K, whereas the Au layer grows in a three-dimensional fashion from the second Au layer at this temperature. Annealing these surfaces to 300 K reduces the higher-layer islands, indicating that Au atoms undergo step-down diffusion. By measuring the density of the top-layer islands and comparing them with the KMC simulation results, the additional step-down diffusion barrier for Au atoms to descend from the Au islands is estimated to be 0.02 eV on the first Au layer and 0.04 eV on the second Au layer. The layer dependence of the additional step-down diffusion barrier is explained in terms of the lattice mismatch between Au and underlying layers.

Ogura, Shohei; Fukutani, Katsuyuki

2009-11-01

273

Nuclear modification factors of ? mesons in d+Au, Cu+Cu, and Au+Au collisions at sNN=200GeV  

NASA Astrophysics Data System (ADS)

The PHENIX experiment at the Relativistic Heavy Ion Collider has performed systematic measurements of ? meson production in the K+K- decay channel at midrapidity in p+p, d+Au, Cu+Cu, and Au+Au collisions at sNN=200GeV. Results are presented on the ? invariant yield and the nuclear modification factor RAA for Au+Au and Cu+Cu, and RdA for d+Au collisions, studied as a function of transverse momentum (1Au+Au collisions, the RAA of ? exhibits a suppression relative to expectations from binary scaled p+p results. The amount of suppression is smaller than that of the ?0 and the ? in the intermediate pT range (2-5GeV/c), whereas, at higher pT, the ?, ?0, and ? show similar suppression. The baryon (proton and antiproton) excess observed in central Au+Au collisions at intermediate pT is not observed for the ? meson despite the similar masses of the proton and the ?. This suggests that the excess is linked to the number of valence quarks in the hadron rather than its mass. The difference gradually disappears with decreasing centrality, and, for peripheral collisions, the RAA values for both particle species are consistent with binary scaling. Cu+Cu collisions show the same yield and suppression as Au+Au collisions for the same number of Npart. The RdA of ? shows no evidence for cold nuclear effects within uncertainties.

Adare, A.; Afanasiev, S.; Aidala, C.; Ajitanand, N. N.; Akiba, Y.; Al-Bataineh, H.; Alexander, J.; Al-Jamel, A.; Angerami, A.; Aoki, K.; Apadula, N.; Aphecetche, L.; Aramaki, Y.; Armendariz, R.; Aronson, S. H.; Asai, J.; Atomssa, E. T.; Averbeck, R.; Awes, T. C.; Azmoun, B.; Babintsev, V.; Bai, M.; Baksay, G.; Baksay, L.; Baldisseri, A.; Barish, K. N.; Barnes, P. D.; Bassalleck, B.; Basye, A. T.; Bathe, S.; Batsouli, S.; Baublis, V.; Bauer, F.; Baumann, C.; Bazilevsky, A.; Belikov, S.; Belmont, R.; Bennett, R.; Berdnikov, A.; Berdnikov, Y.; Bhom, J. H.; Bickley, A. A.; Bjorndal, M. T.; Blau, D. S.; Boissevain, J. G.; Bok, J. S.; Borel, H.; Borggren, N.; Boyle, K.; Brooks, M. L.; Brown, D. S.; Bucher, D.; Buesching, H.; Bumazhnov, V.; Bunce, G.; Burward-Hoy, J. M.; Butsyk, S.; Campbell, S.; Caringi, A.; Chai, J.-S.; Chang, B. S.; Charvet, J. L.; Chen, C. H.; Chernichenko, S.; Chiba, J.; Chi, C. Y.; Chiu, M.; Choi, I. J.; Choi, J. B.; Choudhury, R. K.; Christiansen, P.; Chujo, T.; Chung, P.; Churyn, A.; Chvala, O.; Cianciolo, V.; Citron, Z.; Cleven, C. R.; Cobigo, Y.; Cole, B. A.; Comets, M. P.; Conesa Del Valle, Z.; Connors, M.; Constantin, P.; Csand, M.; Csrg?, T.; Dahms, T.; Dairaku, S.; Danchev, I.; Das, K.; Datta, A.; David, G.; Dayananda, M. K.; Deaton, M. B.; Dehmelt, K.; Delagrange, H.; Denisov, A.; D'Enterria, D.; Deshpande, A.; Desmond, E. J.; Dharmawardane, K. V.; Dietzsch, O.; Dion, A.; Donadelli, M.; D'Orazio, L.; Drachenberg, J. L.; Drapier, O.; Drees, A.; Drees, K. A.; Dubey, A. K.; Durham, J. M.; Durum, A.; Dutta, D.; Dzhordzhadze, V.; Edwards, S.; Efremenko, Y. V.; Egdemir, J.; Ellinghaus, F.; Emam, W. S.; Engelmore, T.; Enokizono, A.; En'Yo, H.; Espagnon, B.; Esumi, S.; Eyser, K. O.; Fadem, B.; Fields, D. E.; Finger, M., Jr.; Finger, M.; Fleuret, F.; Fokin, S. L.; Forestier, B.; Fraenkel, Z.; Frantz, J. E.; Franz, A.; Frawley, A. D.; Fujiwara, K.; Fukao, Y.; Fung, S. Y.; Fusayasu, T.; Gadrat, S.; Garishvili, I.; Gastineau, F.; Germain, M.; Glenn, A.; Gong, H.; Gonin, M.; Gosset, J.; Goto, Y.; Granier de Cassagnac, R.; Grau, N.; Greene, S. V.; Grim, G.; Grosse Perdekamp, M.; Gunji, T.; Gustafsson, H.-.; Hachiya, T.; Hadj Henni, A.; Haegemann, C.; Haggerty, J. S.; Hagiwara, M. N.; Hahn, K. I.; Hamagaki, H.; Hamblen, J.; Hanks, J.; Han, R.; Harada, H.; Hartouni, E. P.; Haruna, K.; Harvey, M.; Haslum, E.; Hasuko, K.; Hayano, R.; Heffner, M.; Hemmick, T. K.; Hester, T.; Heuser, J. M.; He, X.; Hiejima, H.; Hill, J. C.; Hobbs, R.; Hohlmann, M.; Holmes, M.; Holzmann, W.; Homma, K.; Hong, B.; Horaguchi, T.; Hornback, D.; Huang, S.; Hur, M. G.; Ichihara, T.; Ichimiya, R.; Iinuma, H.; Ikeda, Y.; Imai, K.; Inaba, M.; Inoue, Y.; Isenhower, D.; Isenhower, L.; Ishihara, M.; Isobe, T.; Issah, M.; Isupov, A.; Ivanischev, D.; Iwanaga, Y.; Jacak, B. V.; Jia, J.; Jiang, X.; Jin, J.; Jinnouchi, O.; Johnson, B. M.; Jones, T.; Joo, K. S.; Jouan, D.; Jumper, D. S.; Kajihara, F.; Kametani, S.; Kamihara, N.; Kamin, J.; Kaneta, M.; Kang, J. H.; Kanou, H.; Kapustinsky, J.; Karatsu, K.; Kasai, M.; Kawagishi, T.; Kawall, D.; Kawashima, M.; Kazantsev, A. V.; Kelly, S.; Kempel, T.; Khanzadeev, A.; Kijima, K. M.; Kikuchi, J.; Kim, A.; Kim, B. I.; Kim, D. H.; Kim, D. J.; Kim, E. J.; Kim, E.; Kim, Y.-J.; Kim, Y.-S.; Kinney, E.; Kiss, .; Kistenev, E.; Kiyomichi, A.; Klay, J.; Klein-Boesing, C.; Kochenda, L.; Kochetkov, V.; Komkov, B.; Konno, M.; Koster, J.; Kotchetkov, D.; Kotov, D.; Kozlov, A.; Krl, A.; Kravitz, A.; Kroon, P. J.; Kubart, J.; Kunde, G. J.; Kurihara, N.; Kurita, K.; Kurosawa, M.; Kweon, M. J.; Kwon, Y.; Kyle, G. S.; Lacey, R.; Lai, Y. S.; Lajoie, J. G.; Lebedev, A.; Le Bornec, Y.; Leckey, S.; Lee, D. M.; Lee, J.; Lee, K. B.; Lee, K. S.; Lee, M. K.; Lee, T.; Leitch, M. J.; Leite, M. A. L.; Lenzi, B.; Lichtenwalner, P.; Liebing, P.; Lim, H.; Linden Levy, L. A.; Lika, T.; Litvinenko, A.; Liu, H.; Liu, M. X.; Li, X.; Li, X. H.; Love, B.; Lynch, D.; Maguire, C. F.; Makdisi, Y. I.; Malakhov, A.; Malik, M. D.; Manko, V. I.; Mannel, E.; Mao, Y.; Maek, L.; Masui, H.; Matathias, F.; McCain, M. C.; McCumber, M.; McGaughey, P. L.; Means, N.; Meredith, B.; Miake, Y.; Mibe, T.; Mignerey, A. C.; Mike, P.; Miki, K.; Miller, T. E.; Milov, A.; Mioduszewski, S.; Mishra, G. C.; Mishra, M.; Mitchell, J. T.; Mitrovski, M.; Mohanty, A. K.; Moon, H. J.; Morino, Y.; Morreale, A.; Morrison, D. P.; Moss, J. M.; Moukhanova, T. V.; Mukhopadhyay, D.; Murakami, T.; Murata, J.; Nagamiya, S.; Nagata, Y.; Nagle, J. L.; Naglis, M.; Nagy, M. I.; Nakagawa, I.; Nakamiya, Y.; Nakamura, K. R.; Nakamura, T.; Nakano, K.; Nam, S.; Newby, J.; Nguyen, M.; Nihashi, M.; Norman, B. E.; Nouicer, R.; Nyanin, A. S.; Nystrand, J.; Oakley, C.; O'Brien, E.; Oda, S. X.; Ogilvie, C. A.; Ohnishi, H.; Ojha, I. D.; Okada, K.; Oka, M.; Omiwade, O. O.; Onuki, Y.

2011-02-01

274

High transverse momentum eta meson production in p+p,d+Au, and Au+Au collisions at sNN=200 GeV  

Microsoft Academic Search

Inclusive transverse momentum spectra of eta mesons in the range pT≈2 12 GeV\\/c have been measured at midrapidity (|eta|<0.35) by the PHENIX experiment at RHIC in p+p,d+Au, and Au+Au collisions at sNN=200 GeV. The eta mesons are reconstructed through their eta-->gammagamma channel for the three colliding systems as well as through the eta-->pi0pi+pi- decay mode in p+p and d+Au collisions.

S. S. Adler; S. Afanasiev; C. Aidala; N. N. Ajitanand; Y. Akiba; J. Alexander; A. Al-Jamel; R. Amirikas; K. Aoki; L. Aphecetche; R. Armendariz; S. H. Aronson; R. Averbeck; T. C. Awes; R. Azmoun; V. Babintsev; A. Baldisseri; K. N. Barish; P. D. Barnes; B. Bassalleck; S. Bathe; S. Batsouli; V. Baublis; F. Bauer; A. Bazilevsky; S. Belikov; Y. Berdnikov; S. Bhagavatula; M. T. Bjorndal; J. G. Boissevain; H. Borel; S. Borenstein; M. L. Brooks; D. S. Brown; N. Bruner; D. Bucher; H. Buesching; V. Bumazhnov; G. Bunce; J. M. Burward-Hoy; S. Butsyk; X. Camard; J.-S. Chai; P. Chand; W. C. Chang; S. Chernichenko; J. Chiba; C. Y. Chi; M. Chiu; I. J. Choi; J. Choi; R. K. Choudhury; T. Chujo; V. Cianciolo; Y. Cobigo; B. A. Cole; M. P. Comets; P. Constantin; M. Csand; T. Csrgo; J. P. Cussonneau; K. Das; G. David; F. Dek; H. Delagrange; A. Denisov; D. D'Enterria; A. Deshpande; E. J. Desmond; A. Devismes; O. Dietzsch; J. L. Drachenberg; O. Drapier; A. Drees; K. A. Drees; R. Durietz; A. Durum; D. Dutta; V. Dzhordzhadze; Y. V. Efremenko; K. El. Chenawi; A. Enokizono; H. En'yo; B. Espagnon; S. Esumi; L. Ewell; D. E. Fields; C. Finck; F. Fleuret; S. L. Fokin; B. D. Fox; Z. Fraenkel; J. E. Frantz; A. Franz; A. D. Frawley; Y. Fukao; S.-Y. Fung; S. Gadrat; S. Garpman; M. Germain; T. K. Ghosh; A. Glenn; G. Gogiberidze; M. Gonin; J. Gosset; Y. Goto; R. Granier De Cassagnac; N. Grau; S. V. Greene; M. Grosse. Perdekamp; W. Guryn; H.-. Gustafsson; T. Hachiya; J. S. Haggerty; H. Hamagaki; A. G. Hansen; E. P. Hartouni; M. Harvey; K. Hasuko; R. Hayano; N. Hayashi; M. Heffner; T. K. Hemmick; J. M. Heuser; X. He; M. Hibino; P. Hidas; H. Hiejima; J. C. Hill; R. Hobbs; W. Holzmann; K. Homma; B. Hong; A. Hoover; T. Horaguchi; T. Ichihara; V. V. Ikonnikov; K. Imai; M. Inaba; M. Inuzuka; D. Isenhower; L. Isenhower; M. Ishihara; M. Issah; A. Isupov; B. V. Jacak; W. Y. Jang; Y. Jeong; J. Jia; O. Jinnouchi; B. M. Johnson; S. C. Johnson; K. S. Joo; D. Jouan; F. Kajihara; S. Kametani; N. Kamihara; M. Kaneta; J. H. Kang; S. S. Kapoor; K. Katou; M. Kaufman; T. Kawabata; A. V. Kazantsev; S. Kelly; B. Khachaturov; A. Khanzadeev; J. Kikuchi; D. H. Kim; D. J. Kim; D. W. Kim; E. Kim; G.-B. Kim; H. J. Kim; E. Kinney; A. Kiss; E. Kistenev; A. Kiyomichi; K. Kiyoyama; C. Klein-Boesing; H. Kobayashi; L. Kochenda; V. Kochetkov; D. Koehler; T. Kohama; R. Kohara; B. Komkov; M. Konno; M. Kopytine; D. Kotchetkov; A. Kozlov; P. J. Kroon; C. H. Kuberg; G. J. Kunde; K. Kurita; Y. Kuroki; M. J. Kweon; Y. Kwon; G. S. Kyle; R. Lacey; V. Ladygin; J. G. Lajoie; A. Lebedev; Y. Le. Bornec; S. Leckey; D. M. Lee; S. Lee; M. J. Leitch; M. A. L. Leite; H. Lim; A. Litvinenko; M. X. Liu; Y. Liu; X. H. Li; C. F. Maguire; Y. I. Makdisi; A. Malakhov; V. I. Manko; Y. Mao; G. Martinez; M. D. Marx; H. Masui; F. Matathias; T. Matsumoto; M. C. McCain; P. L. McGaughey; E. Melnikov; F. Messer; Y. Miake; J. Milan; T. E. Miller; A. Milov; S. Mioduszewski; R. E. Mischke; G. C. Mishra; J. T. Mitchell; A. K. Mohanty; J. M. Moss; F. Mhlbacher; D. Mukhopadhyay; M. Muniruzzaman; J. Murata; S. Nagamiya; J. L. Nagle; T. Nakamura; B. K. Nandi; M. Nara; J. Newby; P. Nilsson; A. S. Nyanin; J. Nystrand; E. O'Brien; C. A. Ogilvie; H. Ohnishi; I. D. Ojha; H. Okada; K. Okada; M. Ono; V. Onuchin; A. Oskarsson; I. Otterlund; K. Oyama; K. Ozawa; D. Pal; A. P. T. Palounek; V. Pantuev; V. Papavassiliou; W. J. Park; A. Parmar; S. F. Pate; H. Pei; T. Peitzmann; V. Penev; J.-C. Peng; H. Pereira; V. Peresedov; A. Pierson; C. Pinkenburg; R. P. Pisani; F. Plasil; M. L. Purschke; A. K. Purwar; J. M. Qualls; J. Rak; I. Ravinovich; K. F. Read; M. Reuter; K. Reygers; V. Riabov; Y. Riabov; G. Roche; A. Romana; M. Rosati; S. S. E. Rosendahl; P. Rosnet; V. L. Rykov; S. S. Ryu; M. E. Sadler; B. Sahlmueller; N. Saito; T. Sakaguchi; M. Sakai; S. Sakai; V. Samsonov; L. Sanfratello; R. Santo; H. D. Sato; S. Sato; S. Sawada; Y. Schutz; V. Semenov; R. Seto; M. R. Shaw; T. K. Shea; I. Shein; T.-A. Shibata; K. Shigaki; T. Shiina; M. Shimomura; A. Sickles; C. L. Silva; D. Silvermyr; K. S. Sim; C. P. Singh; V. Singh; M. Sivertz; A. Soldatov; R. A. Soltz; W. E. Sondheim; S. P. Sorensen; I. V. Sourikova; F. Staley; P. W. Stankus; E. Stenlund; M. Stepanov; A. Ster; S. P. Stoll; T. Sugitate; J. P. Sullivan; S. Takagi; E. M. Takagui; A. Taketani; M. Tamai; K. H. Tanaka; Y. Tanaka; K. Tanida; M. J. Tannenbaum; A. Taranenko; P. Tarjn; J. D. Tepe; T. L. Thomas; M. Togawa; J. Tojo; H. Torii; R. S. Towell; V.-N. Tram; I. Tserruya; Y. Tsuchimoto; H. Tsuruoka; S. K. Tuli; H. Tydesj; N. Tyurin; T. J. Uam; H. W. Van Hecke; J. Velkovska; M. Velkovsky; V. Veszprmi; L. Villatte; A. A. Vinogradov; M. A. Volkov; E. Vznuzdaev; X. R. Wang; Y. Watanabe; S. N. White; N. Willis; F. K. Wohn; C. L. Woody; W. Xie; Y. Yang; A. Yanovich; S. Yokkaichi; G. R. Young; I. E. Yushmanov; W. A. Zajc; C. Zhang; S. Zhou; J. Zimnyi

2007-01-01

275

Fabrication of a chitosan/glucose oxidase-poly(anilineboronic acid)-Au(nano)/Au-plated Au electrode for biosensor and biofuel cell.  

PubMed

Enzyme immobilization is one of the key factors in constructing high-performance enzyme biosensors and biofuel cells (BFCs). Herein, we propose a new protocol for efficient immobilization of a glycoprotein enzyme based on the interaction of the 1, 2- or 1, 3-diols in the glycoprotein with a boronic acid functionalized monomer. Briefly, casting a mixture of glucose oxidase (GOx) and anilineboronic acid (ABA) followed by a NaAuCl(4) solution to an Au-plated Au electrode surface yielded a GOx-poly(ABA) (PABA)-gold nanoparticle (Au(nano)) bionanocomposite, and chitosan (CS) was then cast and air-dried. In the present protocol, the small-sized Au(nano) or Au subnanostructures can form near/on the enzyme molecule, which greatly promotes the electron transfer of enzymatic reaction and enhances the amperometric responses. The thus-prepared CS/GOx-PABA-Au(nano)/Au-plated Au electrode worked well in the first-/second generation biosensing modes and as a bioanode in a monopolar biofuel cell, with analytical or cell-power performance superior to those of most analogues hitherto reported. PMID:22099959

Huang, Yi; Qin, Xiaoli; Li, Zou; Fu, Yingchun; Qin, Cong; Wu, Feng; Su, Zhaohong; Ma, Ming; Xie, Qingji; Yao, Shouzhuo; Hu, Jiming

2012-01-15

276

Jet structure of baryon excess in Au+Au collisions at &surd;(sNN)=200GeV  

Microsoft Academic Search

Two particle correlations between identified meson and baryon trigger particles with 2.5Au, and Au+Au collisions at &surd;(sNN)=200GeV. In noncentral Au+Au collisions, the probability of finding a hadron near in azimuthal angle to the trigger particles is almost identical for mesons and baryons

S. S. Adler; S. Afanasiev; C. Aidala; N. N. Ajitanand; Y. Akiba; A. Al-Jamel; J. Alexander; R. Amirikas; K. Aoki; L. Aphecetche; R. Armendariz; S. H. Aronson; R. Averbeck; T. C. Awes; R. Azmoun; V. Babintsev; A. Baldisseri; K. N. Barish; P. D. Barnes; B. Bassalleck; S. Bathe; S. Batsouli; V. Baublis; F. Bauer; A. Bazilevsky; S. Belikov; Y. Berdnikov; S. Bhagavatula; M. T. Bjorndal; J. G. Boissevain; H. Borel; S. Borenstein; M. L. Brooks; D. S. Brown; N. Bruner; D. Bucher; H. Buesching; V. Bumazhnov; G. Bunce; J. M. Burward-Hoy; S. Butsyk; X. Camard; J.-S. Chai; P. Chand; W. C. Chang; S. Chernichenko; C. Y. Chi; J. Chiba; M. Chiu; I. J. Choi; J. Choi; R. K. Choudhury; T. Chujo; V. Cianciolo; Y. Cobigo; B. A. Cole; M. P. Comets; P. Constantin; M. Csand; T. Csrgo; J. P. Cussonneau; D. D'Enterria; K. Das; G. David; F. Dek; H. Delagrange; A. Denisov; A. Deshpande; E. J. Desmond; A. Devismes; O. Dietzsch; J. L. Drachenberg; O. Drapier; A. Drees; K. A. Drees; R. Du Rietz; A. Durum; D. Dutta; V. Dzhordzhadze; Y. V. Efremenko; K. El Chenawi; A. Enokizono; H. En'yo; B. Espagnon; S. Esumi; L. Ewell; D. E. Fields; C. Finck; F. Fleuret; S. L. Fokin; B. D. Fox; Z. Fraenkel; J. E. Frantz; A. Franz; A. D. Frawley; Y. Fukao; S.-Y. Fung; S. Gadrat; S. Garpman; M. Germain; T. K. Ghosh; A. Glenn; G. Gogiberidze; M. Gonin; J. Gosset; Y. Goto; R. Granier Cassagnac; N. Grau; S. V. Greene; M. Grosse Perdekamp; W. Guryn; H.-. Gustafsson; T. Hachiya; J. S. Haggerty; H. Hamagaki; A. G. Hansen; E. P. Hartouni; M. Harvey; K. Hasuko; R. Hayano; N. Hayashi; X. He; M. Heffner; T. K. Hemmick; J. M. Heuser; M. Hibino; P. Hidas; H. Hiejima; J. C. Hill; R. Hobbs; W. Holzmann; K. Homma; B. Hong; A. Hoover; T. Horaguchi; T. Ichihara; V. V. Ikonnikov; K. Imai; M. Inaba; M. Inuzuka; D. Isenhower; L. Isenhower; M. Ishihara; M. Issah; A. Isupov; B. V. Jacak; W. Y. Jang; Y. Jeong; J. Jia; O. Jinnouchi; B. M. Johnson; S. C. Johnson; K. S. Joo; D. Jouan; F. Kajihara; S. Kametani; N. Kamihara; M. Kaneta; J. H. Kang; S. S. Kapoor; K. Katou; T. Kawabata; A. Kazantsev; S. Kelly; B. Khachaturov; A. Khanzadeev; J. Kikuchi; D. H. Kim; D. J. Kim; D. W. Kim; E. Kim; G.-B. Kim; H. J. Kim; E. Kinney; W. W. Kinnison; A. Kiss; E. Kistenev; A. Kiyomichi; K. Kiyoyama; C. Klein-Boesing; H. Kobayashi; L. Kochenda; V. Kochetkov; D. Koehler; T. Kohama; R. Kohara; B. Komkov; M. Konno; M. Kopytine; D. Kotchetkov; A. Kozlov; P. J. Kroon; C. H. Kuberg; G. J. Kunde; K. Kurita; Y. Kuroki; M. J. Kweon; Y. Kwon; G. S. Kyle; R. Lacey; V. Ladygin; J. G. Lajoie; Y. Le Bornec; A. Lebedev; S. Leckey; D. M. Lee; S. Lee; M. J. Leitch; M. A. Leite; X. H. Li; H. Lim; A. Litvinenko; M. X. Liu; Y. Liu; C. F. Maguire; Y. I. Makdisi; A. Malakhov; V. I. Manko; Y. Mao; G. Martinez; M. D. Marx; H. Masui; F. Matathias; T. Matsumoto; M. C. McCain; P. L. McGaughey; E. Melnikov; F. Messer; Y. Miake; J. Milan; T. E. Miller; A. Milov; S. Mioduszewski; R. E. Mischke; G. C. Mishra; J. T. Mitchell; A. K. Mohanty; J. M. Moss; F. Mhlbacher; D. Mukhopadhyay; M. Muniruzzaman; J. Murata; S. Nagamiya; J. L. Nagle; T. Nakamura; B. K. Nandi; M. Nara; J. Newby; P. Nilsson; A. S. Nyanin; J. Nystrand; E. O'Brien; C. A. Ogilvie; H. Ohnishi; I. D. Ojha; H. Okada; K. Okada; M. Ono; V. Onuchin; A. Oskarsson; I. Otterlund; K. Oyama; K. Ozawa; D. Pal; A. P. Palounek; V. Pantuev; V. Papavassiliou; W. J. Park; A. Parmar; S. F. Pate; H. Pei; T. Peitzmann; V. Penev; J.-C. Peng; H. Pereira; V. Peresedov; A. Pierson; C. Pinkenburg; R. P. Pisani; F. Plasil; M. L. Purschke; A. K. Purwar; J. Qualls; J. Rak; I. Ravinovich; K. F. Read; M. Reuter; K. Reygers; V. Riabov; Y. Riabov; G. Roche; A. Romana; M. Rosati; S. Rosendahl; P. Rosnet; V. L. Rykov; S. S. Ryu; M. E. Sadler; N. Saito; T. Sakaguchi; M. Sakai; S. Sakai; V. Samsonov; L. Sanfratello; R. Santo; H. D. Sato; S. Sato; S. Sawada; Y. Schutz; V. Semenov; R. Seto; M. R. Shaw; T. K. Shea; I. Shein; T.-A. Shibata; K. Shigaki; T. Shiina; M. Shimomura; A. Sickles; C. L. Silva; D. Silvermyr; K. S. Sim; J. Simon-Gillo; C. P. Singh; V. Singh; M. Sivertz; A. Soldatov; R. A. Soltz; W. E. Sondheim; S. Sorensen; I. V. Sourikova; F. Staley; P. W. Stankus; E. Stenlund; M. Stepanov; A. Ster; S. P. Stoll; T. Sugitate; J. P. Sullivan; S. Takagi; E. M. Takagui; A. Taketani; M. Tamai; K. H. Tanaka; Y. Tanaka; K. Tanida; M. J. Tannenbaum; A. Taranenko; P. Tarjn; J. D. Tepe; T. L. Thomas; M. Togawa; J. Tojo; H. Torii; R. S. Towell; V.-N. Tram; I. Tserruya; Y. Tsuchimoto; H. Tsuruoka; S. K. Tuli; H. Tydesj; N. Tyurin; T. J. Uam; H. W. Hecke; J. Velkovska; M. Velkovsky; V. Veszprmi; L. Villatte; A. A. Vinogradov; M. A. Volkov; E. Vznuzdaev; X. R. Wang; Y. Watanabe; S. N. White; N. Willis; F. K. Wohn; C. L. Woody; W. Xie; Y. Yang; A. Yanovich; S. Yokkaichi; G. R. Young; I. E. Yushmanov; W. A. Zajc; C. Zhang; S. Zhou; J. Zimnyi; L. Zolin; X. Zong

2005-01-01

277

Photosynthetic Electron Transport System Promotes Synthesis of Au-Nanoparticles  

PubMed Central

In this communication, a novel, green, efficient and economically viable light mediated protocol for generation of Au-nanoparticles using most vital organelle, chloroplasts, of the plant system is portrayed. Thylakoids/chloroplasts isolated from Potamogeton nodosus (an aquatic plant) and Spinacia oleracea (a terrestrial plant) turned Au3+ solutions purple in presence of light of 600 mol m?2 s?1 photon flux density (PFD) and the purple coloration intensified with time. UV-Vis spectra of these purple colored solutions showed absorption peak at ?545 nm which is known to arise due to surface plasmon oscillations specific to Au-nanoparticles. However, thylakoids/chloroplasts did not alter color of Au3+ solutions in dark. These results clearly demonstrated that photosynthetic electron transport can reduce Au3+ to Au0 which nucleate to form Au-nanoparticles in presence of light. Transmission electron microscopic studies revealed that Au-nanoparticles generated by light driven photosynthetic electron transport system of thylakoids/chloroplasts were in range of 520 nm. Selected area electron diffraction and powder X-ray diffraction indicated crystalline nature of these nanoparticles. Energy dispersive X-ray confirmed that these nanoparticles were composed of Au. To confirm the potential of light driven photosynthetic electron transport in generation of Au-nanoparticles, thylakoids/chloroplasts were tested for their efficacy to generate Au-nanoparticles in presence of light of PFD ranging from 60 to 600 mol m?2 s?1. The capacity of thylakoids/chloroplasts to generate Au-nanoparticles increased remarkably with increase in PFD, which further clearly demonstrated potential of light driven photosynthetic electron transport in reduction of Au3+ to Au0 to form nanoparticles. The light driven donation of electrons to metal ions by thylakoids/chloroplasts can be exploited for large scale production of nanoparticles. PMID:23976990

Shabnam, Nisha; Pardha-Saradhi, P.

2013-01-01

278

Photosynthetic electron transport system promotes synthesis of Au-nanoparticles.  

PubMed

In this communication, a novel, green, efficient and economically viable light mediated protocol for generation of Au-nanoparticles using most vital organelle, chloroplasts, of the plant system is portrayed. Thylakoids/chloroplasts isolated from Potamogeton nodosus (an aquatic plant) and Spinacia oleracea (a terrestrial plant) turned Au? solutions purple in presence of light of 600 mol m? s? photon flux density (PFD) and the purple coloration intensified with time. UV-Vis spectra of these purple colored solutions showed absorption peak at ?545 nm which is known to arise due to surface plasmon oscillations specific to Au-nanoparticles. However, thylakoids/chloroplasts did not alter color of Au? solutions in dark. These results clearly demonstrated that photosynthetic electron transport can reduce Au? to Au? which nucleate to form Au-nanoparticles in presence of light. Transmission electron microscopic studies revealed that Au-nanoparticles generated by light driven photosynthetic electron transport system of thylakoids/chloroplasts were in range of 5-20 nm. Selected area electron diffraction and powder X-ray diffraction indicated crystalline nature of these nanoparticles. Energy dispersive X-ray confirmed that these nanoparticles were composed of Au. To confirm the potential of light driven photosynthetic electron transport in generation of Au-nanoparticles, thylakoids/chloroplasts were tested for their efficacy to generate Au-nanoparticles in presence of light of PFD ranging from 60 to 600 mol m? s?. The capacity of thylakoids/chloroplasts to generate Au-nanoparticles increased remarkably with increase in PFD, which further clearly demonstrated potential of light driven photosynthetic electron transport in reduction of Au? to Au? to form nanoparticles. The light driven donation of electrons to metal ions by thylakoids/chloroplasts can be exploited for large scale production of nanoparticles. PMID:23976990

Shabnam, Nisha; Pardha-Saradhi, P

2013-01-01

279

Probing the quenching of CdSe/ZnS qdots by Au, Au/Ag, and Au/Pd nanoparticles.  

PubMed

The resonance energy transfer between CdSe/ZnS quantum dots (qdots) and three metallic nanoparticles (NPs) with different surface plasmon resonance (SPR) characteristics were studied. Gold, gold/silver and gold/palladium NPs were used as energy acceptors for qdots with donor emission at 570 nm. Due to the different spectral overlaps between the SPR signatures and qdot emission, varied energy transfer characteristics were observed. The energy transfer was quantified via the Stern-Volmer relationship, since in this study the energy transfer was collision based. The Au/Ag and Au/Pd NPs in particular showed high K(SV) values, while the Au NPs showed much lower energy transfer efficiency. Since the NPs used in this study were relatively large (d ~ 15-20 nm), the experimental system was also influenced by the NP extinction coefficients of ?10(8) M(-1) cm(-1). To address this potential inner filter effect, the quenching profiles were normalized by SPR transmittance. The results are important to the field, as many of these classes of nanomaterials are being employed in energy transfer based studies, as well as in colorimetric sensing. PMID:23060607

Han, Hyunjoo; Valle, Valerie; Maye, Mathew M

2012-11-01

280

Rhombohedrally Distorted ?-Au5-xZn8+y Phases in the Au-Zn System  

SciTech Connect

The region of the AuZn phase diagram encompassing ?-brass-type phases has been studied experimentally from 45 to 85 atom % Zn. The ? phases were obtained directly from the pure elements by heating to 680 C in evacuated silica tubes, followed by annealing at 300 C. Powder X-ray and single-crystal diffraction studies show that ?-Au5Zn8 phases adopt a rhombohedrally distorted Cr5Al8 structure type rather than the cubic Cu5Zn8 type. The refined compositions from two single crystals extracted from the Zn- and Au-rich loadings are Au4.27(3)Zn8.26(3)?0.47 (I) and Au4.58(3)Zn8.12(3)?0.3 (II), respectively (? = vacancy). These (I and II) refinements indicated both nonstatistical mixing of Au and Zn atoms as well as partially ordered vacancy distributions. The structures of these ? phases were solved in the acentric space group R3m (No. 160, Z = 6), and the observed lattice parameters from powder patterns were found to be a = 13.1029(6) and 13.1345(8) and c = 8.0410(4) and 8.1103(6) for crystals I and II, respectively. According to single-crystal refinements, the vacancies were found on the outer tetrahedron (OT) and octahedron (OH) of the 26-atom cluster. Single-crystal structural refinement clearly showed that the vacancy content per unit cell increases with increasing Zn, or valence-electron concentration. Electronic structure calculations, using the tight-binding linear muffin-tin orbital method with the atomic-sphere approximation (TB-LMTO-ASA) method, indicated the presence of a well-pronounced pseudogap at the Fermi level for Au5Zn8 as the representative composition, an outcome that is consistent with the HumeRothery interpretation of ? brass.

Thimmaiah, Srinivasa [Ames Laboratory; Miller, Gordon J. [Ames Laboratory

2013-01-16

281

Cis-trans conversion of the CH3S-Au-SCH3 complex on Au(111)  

SciTech Connect

The RS-Au-SR complex (RS-being an alkylthiolate group) has been determined to be an important structural motif at the interface of self-assembled monolayers (SAMs) of thiolate on gold. We investigate the conversion between two stable configurations (cis and trans) of the CH{sub 3}S-Au-SCH{sub 3} complex on Au(111) by applying density functional theory. We show that this cis-trans conversion has a barrier of only 0.5 eV, indicating that the two geometrical isomers can easily interchange on Au(111) to facilitate packing of the CH{sub 3}S-Au-SCH{sub 3} complexes on Au(111). We further examine how this conversion connects two stable structural models recently predicted for the well known c(4 x 2) superstructure of SAMs on Au(111).

Jiang, Deen [ORNL; Dai, Sheng [ORNL

2009-01-01

282

Battlelines for Suez: The Abadan Crisis of 1951 and the Formation of the Suez Group  

Microsoft Academic Search

The Abadan crisis was the initial phase of the protracted crisis in Anglo-Persian relations 195154, precipitated by Persia's nationalisation of the Anglo-Iranian Oil Company in May 1951. For many in the Tory party, it provided the test run of British policy in the Middle East. It seemed to demonstrate what should be the appropriate British response to the challenge of

Sue Onslow

2003-01-01

283

Bridging gold in electron-deficient Al2Au(n)(0/-) and BAlAu(n)(0/-) (n = 1-3) clusters.  

PubMed

The geometrical and electronic structures of the electron-deficient dialuminum aurides Al2Aun(0/-) and hybrid boron-aluminum aurides BAlAun(0/-) (n = 1-3) are systematically investigated based on the density and wave function theories. Ab initio theoretical evidence strongly suggests that bridging gold atoms exist in the ground states of C2v Al2Au(-) ((3)B1), C2v Al2Au ((2)B1), C2v Al2Au2(-) ((2)A1), C2v Al2Au2 ((1)A1), Cs Al2Au3(-) ((1)A'), and D3h Al2Au3 ((2)A1), which prove to possess an Al-Au-Al ? bond. For BAlAun(0/-) (n = 1-3) mixed clusters, bridging B-Au-Al units only exist in Cs BAlAu3(-) ((1)A') and Cs BAlAu3 ((2)A'), whereas Cs BAlAu(-) ((3)A''), Cs BAlAu ((2)A''), Cs BAlAu2(-) ((2)A'), and Cs BAlAu2 ((1)A') do not possess a bridging gold, as demonstrated by the fact that B-Al and B-Au exhibit significantly stronger electronic interaction than Al-Au in the same clusters. Orbital analyses indicate that Au 6s contributes approximately 98%-99% to the Au-based orbital in these Al-Au-Al/B-Au-Al interactions, whereas Au 5d contributes 1%-2%. The adiabatic and vertical detachment energies of Al2Aun(-) (n = 1-3) are calculated to facilitate future experimental characterizations. The results obtained in this work establish an interesting ? bonding model (Al-Au-Al/B-Au-Al) for electron-deficient systems in which Au 6s plays a major factor. PMID:23718624

Yao, Wen-Zhi; Liu, Bing-Tao; Lu, Zhang-Hui; Li, Si-Dian

2013-06-20

284

LA MORT COMMUNE au duch de Bretagne  

E-print Network

LA MORT COMMUNE au duché de Bretagne à la fin du Moyen ?ge * La mort représente assurément un ... Il demeure que la mort s'impose toujours à l'historien démographe comme à celui des représentations aujourd'hui remises sur le boisseau5 . ? proprement parler, la mort commune n'a pourtant pas d

Boyer, Edmond

285

Universite Toulouse III -Paul Sabatier preparee au  

E-print Network

Universit´e Toulouse III - Paul Sabatier Th`ese pr´epar´ee au Laboratoire d'Analyse et d'Universit´e Toulouse III - Paul Sabatier ´Ecole Doctorale : Syst`eme Sp´ecialit´e : Informatique par S´ebastien BOSCH´erienne. Consid´erant d'abord le contexte d'images a´eriennes faiblement localis´ees (GPS m´e- trique, centrale

Paris-Sud XI, Université de

286

health.uts.edu.au Postgraduate  

E-print Network

health.uts.edu.au Postgraduate CoUrSeS 2013 UTS: health services m anaGem ent #12;2 ConTenTS SnApShoT of UTS: heAlTh 2276 students 562 postgraduate coursework students 63 higher degree research students 137 by the UTS student body. heAlTh ServiCeS MAnAGeMenT 05 Master of health Services Management and planning 06

University of Technology, Sydney

287

L'ducation fminine au Congo belge  

Microsoft Academic Search

Annie, Virginie et Nadine, N'Jilan, Yeleen et Aliyah, la gent fminine de la famille! C. Coquery?Vidrovitch, Les Africaines. Histoire des femmes d'Afrique noire du 19me au 20me sicle (Paris, 1994), p. 227.The most widespread opinion about the education of the Congolese woman and her participation in modern life throughout the colonial era is a fairly negative one. In this

Pierre Kita Masandi

2004-01-01

288

Recent STAR Results from U+U and Au+Au Collisions  

NASA Astrophysics Data System (ADS)

Unlike Au or Pb nuclei which are more spherical, the uranium nuclei have a relatively large deformation on average. The prolate shape of uranium nuclei provides the feasibility to study how the initial geometry of the nuclei affects the azimuthal distributions of produced particles. It also provides a unique opportunity to understand the initial condition for particle production at mid-rapidity in heavy ion collisions as well as path length dependence of jet quenching and quarkonium in-medium effects. In this proceedings, the two- and four- particle cumulant, v2{2} and v2{4}, from U+U collisions at = 193 GeV and Au+Au collisions at = 200 GeV for inclusive charged hadrons at midrapidity will be presented. The STAR Zero Degree Calorimeter is used to subdivide the 0-1% centrality bin into even finer centralities. Differences were observed between the multiplicity dependence of v2{2} for most central Au+Au and U+U collisions. The observed v2{2} slope results were compared to Monte Carlo Glauber model predictions and it was seen that this model cannot explain the presented results on the multiplicity dependence of v2{2} in central collisions.

Wang, Hui; Star Collaboration

2014-09-01

289

Electric field induced surface modification of Au  

SciTech Connect

We discuss the role of localized high electric fields in the modification of Au surfaces with a W probe using the interfacial force microscope. Upon bringing a probe close to a Au surface, we measure both the interfacial force and the field emission current as a function of separation with a constant potential of 100 V between tip and sample. The current initially increases exponentially as the separation decreases. However, at a distance of less than {approximately}500 {Angstrom}, the current rises sharply as the surface begins to distort and rapidly close the gap. Retraction of the tip before contact is made reveals the formation of a mound on the surface. We propose a simple model, in which the localized high electric field under the tip assists the production of mobile Au adatoms by detachment from surface steps, and a radial field gradient causes a net flux of atoms toward the tip by surface diffusion. These processes give rise to an unstable surface deformation which, if left unchecked, results in a destructive mechanical contact. We discuss our findings with respect to earlier work using voltage pulses in the scanning tunneling microscope as a means of nanofabrication. {copyright} {ital 1999 American Institute of Physics.}

Mayer, T.M.; Houston, J.E.; Franklin, G.E.; Erchak, A.A.; Michalske, T.A. [Sandia National Laboratories, Albuquerque, New Mexico 87185-1413 (United States)] [Sandia National Laboratories, Albuquerque, New Mexico 87185-1413 (United States)

1999-06-01

290

Un nouvel oxyde naturel de Au et Sb  

NASA Astrophysics Data System (ADS)

A gold-antimony X-ray amorphous oxide, resulting from a hydrothermal alteration of aurostibite, AuSb 2, occurs in the Krsn Hora gold deposit, Czech Republic. Its reflectivity is close to that of goethite. The average composition obtained by electron microprobe analyses (wt. %) is: Au - 68.32; Cu - 0.10; Sb - 21.26; As - 0.30; Si - 0.21; O - 8.44; total 98.63. This yields the empirical formula (Au 0.677Cu 0.003Sb 0.341As 0.008) 1.029O. The[(Au + Cu)/(Sb + As)] at ratio varies from 1.86 to 1.95. Among possible formulae satisfying the equilibrium of charges, that implying unique valence states for Au and/or Sb was retained. It can be written Au 1+2Sb 3+O 2(OH) with the theoretical composition (wt, %): Au - 69.76; Sb - 21.54; O - 8.50; H - 0.20. This Au- and Sb-bearing oxide is associated with native gold, electrum, aurostibite, arsenopyrite and pyrite in a quartz gangue. The powder pattern of AuSbO 3 was indexedon an orthorhombic unit-cell with a = 5.00(2); b = 12.46(4); c = 5.43(2) , Z = 4, Q calc = 7.20 g.cm 3, assuming a replacement of Sb 3+ by Au 3+ in the valentinite-type crystal structure.

Johan, Zdenek; rein, Vladimir

1998-04-01

291

Electrochemical responses and electrocatalysis at single au nanoparticles.  

PubMed

Steady-state electrochemical responses have been obtained at single Au nanoparticles using Pt nanoelectrodes. A Au single-nanoparticle electrode (SNPE) is constructed by chemically immobilizing a single Au nanoparticle at a SiO(2)-encapsulated Pt disk nanoelectrode, which was previously modified by an amine-terminated silane. The Au SNPE has been characterized by transmission electron microscopy, underpotential deposition of Cu, and steady-state cyclic voltammetry. It has been found that the presence of a single Au nanoparticle enhances the electron transfer from the Pt nanoelectrode to the redox molecules, and the voltammetric response at the Au SNPE depends on the size of the Au nanoparticle. The Au SNPE has been utilized to examine the oxygen-reduction reaction in a KOH solution to explore the feasibility of measuring the electrocatalytic activity at a single-nanoparticle level. It has been shown that the electrocatalytic activity of single Au nanoparticles can be directly measured using SNPEs, and the electrocatalytic activity is dependent on the size of the Au nanoparticles. This study can help to understand the structure-function relationship in nanoparticle-based electrocatalysis. PMID:20148588

Li, Yongxin; Cox, Jonathan T; Zhang, Bo

2010-03-10

292

Low-temperature Au/a-Si wafer bonding  

NASA Astrophysics Data System (ADS)

The Si/SiO2/Ti/Au-Au/Ti/a-Si/SiO2/Si bonding structure, which can also be used for the bonding of non-silicon material, was investigated for the first time in this paper. The bond quality test showed that the bond yield, bond repeatability and average shear strength are higher for this bonding structure. The interfacial microstructure analysis indicated that the Au-induced crystallization of the amorphous silicon process leads to big Si grains extending across the bond interface and Au filling the other regions of the bond interface, which result into a strong and void-free bond interface. In addition, the Au-induced crystallization reaction leads to a change in the IR images of the bond interface. Therefore, the IR microscope can be used to evaluate and compare the different bond strengths qualitatively. Furthermore, in order to verify the superiority of the bonding structure, the Si/SiO2/Ti/Au-a-Si/SiO2/Si (i.e. no Ti/Au layer on the a-Si surface) and Si/SiO2/Ti/Au-Au/Ti/SiO2/Si bonding structures (i.e. Au thermocompression bonding) were also investigated. For the Si/SiO2/Ti/Au-a-Si/SiO2/Si bonding structure, the poor bond quality is due to the native oxide layer on the a-Si surface, and for the Si/SiO2/Ti/Au-Au/Ti/SiO2/Si bonding structure, the poor bond quality is caused by the wafer surface roughness which prevents intimate contact and limits the interdiffusion at the bond interface.

Jing, Errong; Xiong, Bin; Wang, Yuelin

2011-01-01

293

Simulation of Electric Field in Semi Insulating Au/CdTe/Au Detector under Flux  

SciTech Connect

We report our simulations on the profile of the electric field in semi insulating CdTe and CdZnTe with Au contacts under radiation flux. The type of the space charge and electric field distribution in the Au/CdTe/Au structure is at high fluxes result of a combined influence of charge formed due to band bending at the electrodes and from photo generated carriers, which are trapped at deep levels. Simultaneous solution of drift-diffusion and Poisson equations is used for the calculation. We show, that the space charge originating from trapped photo-carriers starts to dominate at fluxes 10{sup 15}-10{sup 16}cm{sup -2}s{sup -1}, when the influence of contacts starts to be negligible.

Franc, J.; James, R.; Grill, R.; Kubat, J.; Belas, E.; Hoschl, P.; Moravec, P.; Praus, P.

2009-08-02

294

Identification of the Au Coverage and Structure of the Au /Si(111)-(52) Surface  

NASA Astrophysics Data System (ADS)

We identify the atomic structure of the Au /Si(111)-(52) surface by using density functional theory calculations. With seven Au atoms per unit cell, our model forms a bona fide (52) atomic structure, which is energetically favored over the leading model of Erwin et al. [Phys. Rev. B 80, 155409 (2009), 10.1103/PhysRevB.80.155409], and well reproduces the Y-shaped and V-shaped (52) STM images. This surface is metallic with a prominent half filled band of surface states, mostly localized around the Au-chain area. The correct identification of the atomic and band structure of the clean surface further clarifies the adsorption structure of Si adatoms and the physical origin of the intriguing metal-to-insulator transition driven by Si adatoms.

Kwon, Se Gab; Kang, Myung Ho

2014-08-01

295

Synthesis of Au-Ag alloy nanoparticles with Au/Ag compositional control in SiO2 film matrix.  

PubMed

Au-Ag alloy nanoparticles with tunable atomic ratios have been generated in SiO2 film matrix using a new two layer (TL) approach. Two successive overlapping coating layers of similar thickness were deposited on silica glass substrates using Au- and Ag-incorporated inorganic-organic hybrid silica sols, respectively. The Au and Ag concentrations in the individual layers were varied to obtain the desired Au-Ag alloys of different compositions. Four sets of such TL coating assemblies were prepared from the following pair of sols: (i) 4 equivalent mol.% Au-96% SiO2 and 2 equivalent mol.% Ag-98% SiO2, (ii) 3 equivalent mol.% Au-97% SiO2 and 2 equivalent mol.% Ag-98% SiO2, (iii) 3 equivalent mol.% Au-97% SiO2 and 3 equivalent mol.% Ag-97% SiO2, and (iv) 2 equivalent mol.% Au-98% SiO2 and 3 equivalent mol.% Ag-97% SiO2 and subjected to UV (2.75 J/cm2) and heat-treatments (450-550 degrees C) in air and H2-N2 atmospheres for the generation of Au-Ag alloy nanoparticles of approximate compositions Au.66Ag0.33, Au0.6Ag0.4, Au0.5Ag0.5, and Au0.4Ag0.6, respectively. After UV-treatment, individual Au and Ag nanoparticles were formed in the respective layers. The heat-treatment (450-550 degrees C) induces interlayer diffusion of Au and Ag to each other with the generation of Au-Ag alloy nanoparticles, and as a result, Au-Ag alloy surface plasmon resonance (SPR) absorptions were observed in between the Ag- and Au-SPR absorption positions in the visible spectra. The expected alloy compositions are formed through several intermediate alloy nanoparticles, which can also be arrested by controlling the annealing parameters. The alloy formations were monitored by UV-VIS, FTIR, XRD, EDAX, and TEM studies. PMID:17654979

Pal, Sudipto; De, Goutam

2007-06-01

296

Facile preparation of SERS-active nanostructured Au spheres by simple reduction of AuCl4- ions with EDOT.  

PubMed

Uniform submicron-scale Au spheres with an average dimension of 574 nm were facilely prepared from the redox reaction between HAuCl4 and 3,4-ethylenedioxythiophene (EDOT) in aqueous solution under ambient conditions. HAuCl4 precursor readily polymerized to poly(3,4-ethylenedioxythiophene) (PEDOT) and metallic Au spheres simultaneously formed within a short period of time. The Au spheres are consisted of two slightly different types of spherical particles based on their surface textures. Major raspberry-like Au spheres are formed through the assembly of very tiny Au nanoparticles, while minor rosette-like Au spheres are formed through the dense packing of Au nanoplates. Both Au spheres are pure metallic face-centered cubic Au based on X-ray photoelectron spectroscopy and powder X-ray diffraction. The resultant Au spheres are adequate for application to surface-enhanced Raman scattering (SERS) due to their rough surfaces and nanogaps on the surfaces. Both methylene blue and crystal violet molecules were detectable at concentrations as low as 10(-7) M. PMID:24461856

Hong, Jin-Yeon; Huh, Seong

2014-03-15

297

Electrostatic assembles and optical properties of Au CdTe QDs and Ag/Au CdTe QDs  

NASA Astrophysics Data System (ADS)

Au-CdTe and Ag/Au-CdTe assembles were firstly investigated through the static interaction between positively charged cysteamine-stabilized CdTe quantum dots (QDs) and negatively charged Au or core/shell Ag/Au nano-particles (NCs). The CdTe QDs synthesized in aqueous solution were capped with cysteamine which endowed them positive charges on the surface. Both Au and Ag/Au NCs were prepared through reducing precursors with gallic acid obtained from the hydrolysis of natural plant poly-phenols and favored negative charges on the surface of NCs. The fluorescence spectra of CdTe QDs exhibited strong quenching with the increase of added Au or Ag/Au NCs. Railey resonance scattering spectra of Au or Ag/Au NCs increased firstly and decreased latter with the concentration of CdTe QDs, accompanied with the solution color changing from red to purple and colorless at last. Experimental results on the effects of gallic acid, chloroauric acid tetrahydrate and other reagents demonstrated the static interaction occurred between QDs and NCs. This finding reveals the possibilities to design and control optical process and electromagnetic coupling in hybrid structures.

Yang, Dongzhi; Wang, Wenxing; Chen, Qifan; Huang, Yuping; Xu, Shukun

2008-09-01

298

Au/Pd core-shell nanoparticles with varied hollow Au cores for enhanced formic acid oxidation.  

PubMed

A facile method has been developed to synthesize Au/Pd core-shell nanoparticles via galvanic replacement of Cu by Pd on hollow Au nanospheres. The unique nanoparticles were characterized by X-ray diffraction, X-ray photoelectron spectroscopy, transmission electron microscopy, ultraviolet-visible spectroscopy, and electrochemical measurements. When the concentration of the Au solution was decreased, grain size of the polycrystalline hollow Au nanospheres was reduced, and the structures became highly porous. After the Pd shell formed on these Au nanospheres, the morphology and structure of the Au/Pd nanoparticles varied and hence significantly affected the catalytic properties. The Au/Pd nanoparticles synthesized with reduced Au concentrations showed higher formic acid oxidation activity (0.93 mA cm-2 at 0.3 V) than the commercial Pd black (0.85 mA cm-2 at 0.3 V), suggesting a promising candidate as fuel cell catalysts. In addition, the Au/Pd nanoparticles displayed lower CO-stripping potential, improved stability, and higher durability compared to the Pd black due to their unique core-shell structures tuned by Au core morphologies. PMID:23452438

Hsu, Chiajen; Huang, Chienwen; Hao, Yaowu; Liu, Fuqiang

2013-01-01

299

Au/Pd core-shell nanoparticles with varied hollow Au cores for enhanced formic acid oxidation  

NASA Astrophysics Data System (ADS)

A facile method has been developed to synthesize Au/Pd core-shell nanoparticles via galvanic replacement of Cu by Pd on hollow Au nanospheres. The unique nanoparticles were characterized by X-ray diffraction, X-ray photoelectron spectroscopy, transmission electron microscopy, ultraviolet-visible spectroscopy, and electrochemical measurements. When the concentration of the Au solution was decreased, grain size of the polycrystalline hollow Au nanospheres was reduced, and the structures became highly porous. After the Pd shell formed on these Au nanospheres, the morphology and structure of the Au/Pd nanoparticles varied and hence significantly affected the catalytic properties. The Au/Pd nanoparticles synthesized with reduced Au concentrations showed higher formic acid oxidation activity (0.93 mA cm-2 at 0.3 V) than the commercial Pd black (0.85 mA cm-2 at 0.3 V), suggesting a promising candidate as fuel cell catalysts. In addition, the Au/Pd nanoparticles displayed lower CO-stripping potential, improved stability, and higher durability compared to the Pd black due to their unique core-shell structures tuned by Au core morphologies.

Hsu, Chiajen; Huang, Chienwen; Hao, Yaowu; Liu, Fuqiang

2013-03-01

300

Pion interferometry in Au + Au collisions at ?Snn = 200GeV  

Microsoft Academic Search

We present a systematic analysis of two-pion interferometry in Au+Au collisions at\\u000a?sNN = 200 GeV using\\u000athe STAR detector at Relativistic Heavy Ion Collider. We extract the Hanbury-Brown and Twiss radii and study\\u000atheir multiplicity, transverse momentum, and azimuthal angle dependence. The Gaussianness of the correlation\\u000afunction is studied. Estimates of the geometrical and dynamical structure of the freeze-out

J. Adams; M. A. J. Botje; O. Grebenyuk; A. Mischke; T. Peitzmann; R. J. M. Snellings; B. Yuting; S. Badyal; Y. Bai; J. Balewski; O. Barannikova; L. Barnby; J. Baudot; S. Bekele; V. Belaga; R. Bellwied; J. Berger; B. Bezverkhny; S. Bharadwaj; A. Bhasin; A. Bhati; V. Bhatia; H. Bichsel; A. Billmeier; L. Bland; C. Blyth; B. Bonner; M. Botje; A. Boucham; A. Brandin; A. Bravar; M. Bystersky; R. Cadman; X. Cai; H. Caines; M. Snchez; J. Castillo; D. Cebra; Z. Chajecki; P. Chaloupka; S. Chattopadhyay; H. Chen; Y. Chen; J. Cheng; M. Cherney; A. Chikanian; W. Christie; J. Coffin; T. Cormier; J. Cramer; H. Crawford; D. Das; S. Das; M. Moura; A. Derevschikov; L. Didenko; T. Dietel; S. Dogra; W. Dong; X. Dong; J. Draper; F. Du; A. Dubey; V. Dunin; J. Dunlop; M. R. Dutta Mazumdar; V. Eckardt; W. Edwards; L. Efimov; V. Emelianov; J. Engelage; G. Eppley; B. Erazmus; M. Estienne; P. Fachini; J. Faivre; R. Fatemi; J. Fedorisin; K. Filimonov; P. Filip; E. Finch; V. Fine; Y. Fisyak; K. Fomenko; J. Fu; C. Gagliardi; J. Gans; M. Ganti; L. Gaudichet; F. Geurts; V. Ghazikhanian; P. Ghosh; J. Gonzalez; O. Grachov; D. Grosnick; S. Guertin; Y. Guo; A. Gupta; T. Gutierrez; T. Hallman; A. Hamed; D. Hardtke; J. Harris; M. Heinz; T. Henry; S. Hepplemann; B. Hippolyte; A. Hirsch; E. Hjort; G. Hoffmann; H. Huang; S. Huang; E. Hughes; T. Humanic; G. Igo; A. Ishihara; P. Jacobs; W. Jacobs; M. Janik; H. Jiang; P. Jones; E. Judd; S. Kabana; K. Kang; M. Kaplan; D. Keane; V. Khodyrev; J. Kiryluk; A. Kisiel; E. Kislov; J. Klay; S. Klein; A. Klyachko; D. Koetke; T. Kollegger; M. Kopytine; L. Kotchenda; M. Kramer; P. Kravtsov; V. Kravtsov; K. Krueger; C. Kuhn; A. Kulikov; A. Kumar; R. Kutuev; A. Kuznetsov; M. Lamont; J. M. Landgraf; S. Lange; F. Laue; J. Lauret; A. Lebedev; R. Lednicky; S. Lehocka; M. LeVine; C. Li; Q. Li; Y. Li; G. Lin; S. Lindenbaum; M. Lisa; F. Liu; L. Liu; Q. Liu; Z. Liu; T. Ljubicic; W. Llope; H. Long; R. Longacre; M. Noriega; W. Love; Y. Lu; T. Ludlam; D. Lynn; G. Ma; J. Ma; Y. Ma; D. Magestro; S. Mahajan; D. Mahapatra; R. Majka; L. Mangotra; R. Manweiler; S. Margetis; C. Markert; L. Martin; J. Marx; H. Matis; Yu. Matulenko; C. McClain; T. McShane; F. Meissner; Yu. Melnick; A. Meschanin; M. Miller; N. Minaev; C. Mironov; D. Mishra; J. Mitchell; B. Mohanty; L. Molnar; C. Moore; D. Morozov; M. Munhoz; B. Nandi; S. Nayak; T. Nayak; J. Nelson; P. Netrakanti; V. Nikitin; L. Nogach; S. Nurushev; G. Odyniec; A. Ogawa; V. Okorokov; M. Oldenburg; D. Olson; S. Pal; Y. Panebratsev; S. Panitkin; A. Pavlinov; T. Pawlak; V. Perevoztchikov; C. Perkins; W. Peryt; V. Petrov; S. Phatak; R. Picha; M. Planinic; J. Pluta; N. Porile; J. Porter; A. Poskanzer; M. Potekhin; E. Potrebenikova; B. Potukuchi; D. Prindle; C. Pruneau; J. Putschke; G. Rakness; R. Raniwala; S. Raniwala; O. Ravel; R. Ray; S. Razin; D. Reichhold; J. Reid; G. Renault; F. Retiere; A. Ridiger; H. Ritter; J. Roberts; O. Rogachevskiy; J. Romero; A. Rose; C. Roy; L. Ruan; R. Sahoo; I. Sakrejda; S. Salur; J. Sandweiss; I. Savin; P. Sazhin; J. Schambach; R. Scharenberg; N. Schmitz; K. Schweda; J. Seger; P. Seyboth; E. Shahaliev; M. Shao; W. Shao; M. Sharma; W. Shen; K. Shestermanov; S. Shimanskiy; E Sichtermann; F. Simon; R. Singaraju; G. Skoro; N. Smirnov; G. Sood; P. Sorensen; J. Sowinski; J. Speltz; H. Spinka; B. Srivastava; A. Stadnik; T. Stanislaus; R. Stock; A. Stolpovsky; M. Strikhanov; B. Stringfellow; A. Suaide; E. Sugarbaker; C. Suire; M. Sumbera; B. Surrow; T. Symons; A. Szanto de Toledo; P. Szarwas; A. Tai; J. Takahashi; A. Tang; T. Tarnowsky; D. Thein; J. Thomas; S. Timoshenko; M. Tokarev; T. Trainor; S. Trentalange; R. Tribble; O. Tsai; J. Ulery; T. Ullrich; D. Underwood; A. Urkinbaev; G. Buren; M. Leeuwen; A. Molen; R. Varma; I. Vasilevski; A. Vasiliev; R. Vernet; S. Vigdor; Y. Viyogi; S. Vokal; S. Voloshin; M. Vznuzdaev; W. Waggoner; F. Wang; G. Wang; X. Wang; Y. Wang; Z. Wang; H. Ward; J. Watson; J. Webb; R. Wells; G. Westfall; A. Wetzler; C. Jr.; H. Wieman; S. Wissink; R. Witt; J. Wood; J. Wu; N. Xu; Z. Xu; E. Yamamoto; P. Yepes; V. Yurevich; Y. Zanevsky; H. Zhang; W. Zhang; Z. Zhang; P. Zolnierczuk; R. Zoulkarneev; Y. Zoulkarneeva; A. Zubarev

2005-01-01

301

Spectator matter fragmentation in Au+Au reactions: Phase space analysis  

E-print Network

Clusterization in phase space has been analyzed for peripheral Au+Au reactions at 1000 AMeV using simulated annealing clusterization algorithm (SACA). We investigate how these fragments are correlated in phase space and compare our model calculations with minimum spanning tree (MST) method. Our theoretical study highlights the importance of binding energy criterion in recognizing the fragment structure. MST method however, fails to break-up the spectator matter effectively and thus under-estimates the multiplicity of intermediate mass fragments (IMFs).

Yogesh K. Vermani

2011-08-06

302

Energy dependence of particle multiplicities in central Au+Au collisions.  

PubMed

We present the first measurement of the pseudorapidity density of primary charged particles in Au+Au collisions at root square[s(NN)] = 200 GeV. For the 6% most central collisions, we obtain dN(ch)/d(eta)/(/eta/<1) = 650+/-35(syst). Compared to collisions at root square[s(NN)] = 130 GeV, the highest energy studied previously, an increase by a factor of 1.14+/-0.05 at 90% confidence level, is found. The energy dependence of the pseudorapidity density is discussed in comparison with data from proton-induced collisions and theoretical predictions. PMID:11801006

Back, B B; Baker, M D; Barton, D S; Betts, R R; Bindel, R; Budzanowski, A; Busza, W; Carroll, A; Corbo, J; Decowski, M P; Garcia, E; George, N; Gulbrandsen, K; Gushue, S; Halliwell, C; Hamblen, J; Henderson, C; Hicks, D; Hofman, D; Hollis, R S; Ho?y?ski, R; Holzman, B; Iordanova, A; Johnson, E; Kane, J; Katzy, J; Khan, N; Kucewicz, W; Kulinich, P; Kuo, C M; Lin, W T; Manly, S; McLeod, D; Micha?owski, J; Mignerey, A; Mlmenstdt, J; Nouicer, R; Olszewski, A; Pak, R; Park, I C; Pernegger, H; Rafelski, M; Rbeiz, M; Reed, C; Remsberg, L P; Reuter, M; Roland, C; Roland, G; Rosenberg, L; Sagerer, J; Sarin, P; Sawicki, P; Skulski, W; Steadman, S G; Steinberg, P; Stephans, G S F; Stodulski, M; Sukhanov, A; Tang, J-L; Teng, R; Trzupek, A; Vale, C; van Nieuwenhuizen, G J; Verdier, R; Wadsworth, B; Wolfs, F L H; Wosiek, B; Wo?niak, K; Wuosmaa, A H; Wys?ouch, B

2002-01-14

303

Comparing solar energetic particle events from 0.3 AU to 1 AU.  

NASA Astrophysics Data System (ADS)

Proton fluxes recorded in the energy range 4 MeV - 40 MeV by Helios and IMP-8 spacecraft (SC) during 1974-1978 are used to analyze several solar energetic particle (SEP) events. In particular, the problem of the flux radial dependence is faced, by selecting events for which at least two SC have nominal magnetic footpoints within 20 in heliographic longitude. For each event, the data were previously calibrated by comparing measurements from channels with equivalent energy aboard the different space vehicles. Results for the radial dependence between 0.3 AU and 1 AU provide a realistic scaling of SEP fluxes at Mercury orbit.

Gardini, A.; Laurenza, M.; Storini, M.

304

Midrapidity phi production in Au+Au collisions at (sNN)=130 GeV  

Microsoft Academic Search

We present the first measurement of midrapidity vector meson phi production in Au+Au collisions at RHIC ((sNN)=130 GeV) from the STAR detector. For the 11% highest multiplicity collisions, the slope parameter from an exponential fit to the transverse mass distribution is T=379+\\/-50(stat)+\\/-45(syst) MeV, the yield dN\\/dy=5.73+\\/-0.37(stat)+\\/-0.69(syst) per event, and the ratio Nphi\\/Nh- is found to be 0.021+\\/-0.001(stat)+\\/-0.004(syst). The measured ratio

C. Adler; Z. Ahammed; C. Allgower; J. Amonett; B. D. Anderson; M. Anderson; G. S. Averichev; J. Balewski; O. Barannikova; L. S. Barnby; J. Baudot; S. Bekele; V. V. Belaga; R. Bellwied; J. Berger; H. Bichsel; L. C. Bland; C. O. Blyth; B. E. Bonner; A. Boucham; A. Brandin; R. V. Cadman; H. Caines; M. Caldern de La Barca Snchez; A. Cardenas; J. Carroll; J. Castillo; M. Castro; D. Cebra; S. Chattopadhyay; M. L. Chen; Y. Chen; S. P. Chernenko; M. Cherney; A. Chikanian; B. Choi; W. Christie; J. P. Coffin; T. M. Cormier; J. G. Cramer; H. J. Crawford; M. Demello; W. S. Deng; A. A. Derevschikov; L. Didenko; J. E. Draper; V. B. Dunin; J. C. Dunlop; V. Eckardt; L. G. Efimov; V. Emelianov; J. Engelage; G. Eppley; B. Erazmus; P. Fachini; V. Faine; E. Finch; Y. Fisyak; D. Flierl; K. J. Foley; J. Fu; N. Gagunashvili; J. Gans; L. Gaudichet; M. Germain; F. Geurts; V. Ghazikhanian; J. Grabski; O. Grachov; D. Greiner; V. Grigoriev; M. Guedon; E. Gushin; T. J. Hallman; D. Hardtke; J. W. Harris; M. Heffner; S. Heppelmann; T. Herston; B. Hippolyte; A. Hirsch; E. Hjort; G. W. Hoffmann; M. Horsley; H. Z. Huang; T. J. Humanic; H. Hmmler; G. Igo; A. Ishihara; Yu. I. Ivanshin; P. Jacobs; W. W. Jacobs; M. Janik; I. Johnson; P. G. Jones; E. Judd; M. Kaneta; M. Kaplan; D. Keane; A. Kisiel; J. Klay; S. R. Klein; A. Klyachko; A. S. Konstantinov; L. Kotchenda; A. D. Kovalenko; M. Kramer; P. Kravtsov; K. Krueger; C. Kuhn; A. I. Kulikov; G. J. Kunde; C. L. Kunz; R. Kh. Kutuev; A. A. Kuznetsov; L. Lakehal-Ayat; J. Lamas-Valverde; M. A. Lamont; J. M. Landgraf; S. Lange; C. P. Lansdell; B. Lasiuk; F. Laue; A. Lebedev; T. Lecompte; R. Lednick; V. M. Leontiev; M. J. Levine; Q. Li; S. J. Lindenbaum; M. A. Lisa; T. Ljubicic; W. J. Llope; G. Locurto; H. Long; R. S. Longacre; M. Lopez-Noriega; W. A. Love; D. Lynn; R. Majka; S. Margetis; L. Martin; J. Marx; H. S. Matis; Yu. A. Matulenko; T. S. McShane; F. Meissner; Yu. Melnick; A. Meschanin; M. Messer; M. L. Miller; Z. Milosevich; N. G. Minaev; J. Mitchell; V. A. Moiseenko; D. Moltz; C. F. Moore; V. Morozov; M. M. de Moura; M. G. Munhoz; G. S. Mutchler; J. M. Nelson; P. Nevski; V. A. Nikitin; L. V. Nogach; B. Norman; S. B. Nurushev; G. Odyniec; A. Ogawa; V. Okorokov; M. Oldenburg; D. Olson; G. Paic; S. U. Pandey; Y. Panebratsev; S. Y. Panitkin; A. I. Pavlinov; T. Pawlak; V. Perevoztchikov; W. Peryt; V. A. Petrov; E. Platner; J. Pluta; N. Porile; J. Porter; A. M. Poskanzer; E. Potrebenikova; D. Prindle; C. Pruneau; S. Radomski; G. Rai; O. Ravel; R. L. Ray; S. V. Razin; D. Reichhold; J. G. Reid; F. Retiere; A. Ridiger; H. G. Ritter; J. B. Roberts; O. V. Rogachevski; J. L. Romero; C. Roy; D. Russ; V. Rykov; I. Sakrejda; J. Sandweiss; A. C. Saulys; I. Savin; J. Schambach; R. P. Scharenberg; N. Schmitz; L. S. Schroeder; A. Schttauf; K. Schweda; J. Seger; D. Seliverstov; P. Seyboth; E. Shahaliev; K. E. Shestermanov; S. S. Shimanskii; V. S. Shvetcov; G. Skoro; N. Smirnov; R. Snellings; J. Sowinski; H. M. Spinka; B. Srivastava; E. J. Stephenson; R. Stock; A. Stolpovsky; M. Strikhanov; B. Stringfellow; C. Struck; A. A. Suaide; E. Sugarbaker; C. Suire; M. Sumbera; T. J. Symons; A. Szanto de Toledo; P. Szarwas; J. Takahashi; A. H. Tang; J. H. Thomas; V. Tikhomirov; T. A. Trainor; S. Trentalange; M. Tokarev; M. B. Tonjes; V. Trofimov; O. Tsai; K. Turner; T. Ullrich; D. G. Underwood; G. van Buren; A. M. Vandermolen; A. Vanyashin; I. M. Vasilevski; A. N. Vasiliev; S. E. Vigdor; S. A. Voloshin; F. Wang; H. Ward; J. W. Watson; R. Wells; T. Wenaus; G. D. Westfall; C. Whitten; H. Wieman; R. Willson; S. W. Wissink; R. Witt; N. Xu; Z. Xu; A. E. Yakutin; E. Yamamoto; J. Yang; P. Yepes; A. Yokosawa; V. I. Yurevich; Y. V. Zanevski; I. Zborovsk; H. Zhang; W. M. Zhang; R. Zoulkarneev; A. N. Zubarev

2002-01-01

305

Domain wall dynamics in a spin-reorientation transition system Au/Co/Au  

SciTech Connect

We report measurements of domain wall dynamics in an ultrathin Au/Co/Au system that exhibits a spin reorientation phase transition as a function of temperature.The domain walls exhibit cooperative motion throughout the temperature range of 150 - 300 K. The decay times were found to exhibit a maximum at the transition temperature. The slowdown has been explained as due to formation of a double well in the energy landscape by the different competing interactions. Our results show that the complex, slow dynamics can provide a more fundamental understanding of magnetic phase transitions.

Roy, Sujoy; Seu, Keoki; Turner, Joshua J.; Park, Sungkyun; Kevan, Steve; Falco, Charles M.

2009-05-14

306

Energy and system size dependence of ? meson production in Cu + Cu and Au + Au collisions  

Microsoft Academic Search

We study the beam-energy and system-size dependence of ? meson production (using the hadronic decay mode ??K+K?) by comparing the new results from Cu+Cu collisions and previously reported Au+Au collisions at sNN=62.4 and 200 GeV measured in the STAR experiment at RHIC. Data presented in this Letter are from mid-rapidity (|y|0.5) for 0.4pT5 GeV\\/c. At a given beam energy, the

B. I. Abelev; M. M. Aggarwal; Z. Ahammed; B. D. Anderson; G. S. Averichev; Y. Bai; J. Balewski; O. Barannikova; L. S. Barnby; J. Baudot; S. Baumgart; D. R. Beavis; F. Benedosso; M. J. Betancourt; R. R. Betts; S. Bharadwaj; A. Bhasin; H. Bichsel; J. Bielcik; J. Bielcikova; B. Biritz; L. C. Bland; M. Bombara; B. E. Bonner; M. Botje; J. Bouchet; E. Braidot; A. V. Brandin; E. Bruna; S. Bueltmann; T. P. Burton; M. Bystersky; X. Z. Cai; H. Caines; M. Caldern de la Barca Snchez; J. Callner; O. Catu; D. Cebra; R. Cendejas; M. C. Cervantes; Z. Chajecki; P. Chaloupka; S. Chattopadhyay; H. F. Chen; J. H. Chen; J. Cheng; M. Cherney; A. Chikanian; K. E. Choi; W. Christie; S. U. Chung; R. F. Clarke; M. J. Codrington; R. Corliss; T. M. Cormier; M. R. Cosentino; J. G. Cramer; H. J. Crawford; D. Das; S. Dash; M. Daugherity; C. De Silva; T. G. Dedovich; M. DePhillips; A. A. Derevschikov; R. Derradi de Souza; L. Didenko; P. Djawotho; S. M. Dogra; X. Dong; J. L. Drachenberg; J. E. Draper; F. Du; J. C. Dunlop; M. R. Dutta Mazumdar; W. R. Edwards; L. G. Efimov; E. Elhalhuli; M. Elnimr; V. Emelianov; J. Engelage; G. Eppley; B. Erazmus; M. Estienne; L. Eun; P. Fachini; R. Fatemi; J. Fedorisin; A. Feng; P. Filip; E. Finch; V. Fine; Y. Fisyak; C. A. Gagliardi; L. Gaillard; D. R. Gangadharan; M. S. Ganti; E. Garcia-Solis; V. Ghazikhanian; P. Ghosh; Y. N. Gorbunov; A. Gordon; O. Grebenyuk; D. Grosnick; B. Grube; S. M. Guertin; K. S. F. F. Guimaraes; A. Gupta; N. Gupta; W. Guryn; B. Haag; T. J. Hallman; A. Hamed; J. W. Harris; M. Heinz; S. Hepplemann; B. Hippolyte; A. Hirsch; E. Hjort; A. M. Hoffman; G. W. Hoffmann; D. J. Hofman; R. S. Hollis; H. Z. Huang; T. J. Humanic; G. Igo; A. Iordanova; P. Jacobs; W. W. Jacobs; P. Jakl; F. Jin; C. L. Jones; P. G. Jones; J. Joseph; E. G. Judd; S. Kabana; K. Kajimoto; J. Kapitan; M. Kaplan; D. Keane; A. Kechechyan; D. Kettler; V. Yu. Khodyrev; D. P. Kikola; J. Kiryluk; A. Kisiel; S. R. Klein; A. G. Knospe; A. Kocoloski; D. D. Koetke; M. Kopytine; L. Kotchenda; V. Kouchpil; P. Kravtsov; V. I. Kravtsov; K. Krueger; M. Krus; C. Kuhn; L. Kumar; P. Kurnadi; M. A. C. Lamont; J. M. Landgraf; S. LaPointe; J. Lauret; A. Lebedev; R. Lednicky; C.-H. Lee; W. Leight; M. J. LeVine; C. Li; Y. Li; G. Lin; X. Lin; S. J. Lindenbaum; M. A. Lisa; F. Liu; H. Liu; J. Liu; L. Liu; T. Ljubicic; W. J. Llope; R. S. Longacre; W. A. Love; Y. Lu; T. Ludlam; D. Lynn; G. L. Ma; Y. G. Ma; D. P. Mahapatra; R. Majka; O. I. Mall; L. K. Mangotra; R. Manweiler; S. Margetis; C. Markert; H. S. Matis; Yu. A. Matulenko; T. S. McShane; A. Meschanin; R. Millner; N. G. Minaev; S. Mioduszewski; A. Mischke; J. Mitchell; B. Mohanty; D. A. Morozov; M. G. Munhoz; B. K. Nandi; C. Nattrass; T. K. Nayak; J. M. Nelson; C. Nepali; P. K. Netrakanti; M. J. Ng; L. V. Nogach; S. B. Nurushev; G. Odyniec; A. Ogawa; H. Okada; V. Okorokov; D. Olson; M. Pachr; B. S. Page; Y. Pandit; Y. Panebratsev; T. Pawlak; T. Peitzmann; V. Perevoztchikov; C. Perkins; W. Peryt; S. C. Phatak; M. Planinic; J. Pluta; N. Poljak; A. M. Poskanzer; B. V. K. S. Potukuchi; D. Prindle; C. Pruneau; N. K. Pruthi; J. Putschke; R. Raniwala; S. Raniwala; R. L. Ray; R. Redwine; A. Ridiger; H. G. Ritter; J. B. Roberts; O. V. Rogachevskiy; J. L. Romero; A. Rose; C. Roy; L. Ruan; M. J. Russcher; V. Rykov; R. Sahoo; I. Sakrejda; T. Sakuma; S. Salur; J. Sandweiss; M. Sarsour; I. Savin; J. Schambach; R. P. Scharenberg; N. Schmitz; J. Seger; I. Selyuzhenkov; P. Seyboth; A. Shabetai; E. Shahaliev; M. Shao; M. Sharma; S. S. Shi; X.-H. Shi; E. Sichtermann; F. Simon; R. N. Singaraju; M. J. Skoby; N. Smirnov; R. Snellings; P. Sorensen; J. Sowinski; H. M. Spinka; B. Srivastava; A. Stadnik; T. D. S. Stanislaus; D. Staszak; M. Strikhanov; B. Stringfellow; A. A. P. Suaide; M. C. Suarez; N. L. Subba; M. Sumbera; X. M. Sun; Y. Sun; Z. Sun; B. Surrow; T. J. M. Symons; A. Szanto de Toledo; J. Takahashi; A. H. Tang; Z. Tang; T. Tarnowsky; D. Thein; J. H. Thomas; J. Tian; A. R. Timmins; S. Timoshenko; D. Tlusty; M. Tokarev; T. A. Trainor; V. N. Tram; A. L. Trattner; S. Trentalange; R. E. Tribble; O. D. Tsai; J. Ulery; T. Ullrich; D. G. Underwood; G. Van Buren; M. van Leeuwen; A. M. Vander Molen; J. A. Vanfossen; R. Varma; G. M. S. Vasconcelos; I. M. Vasilevski; A. N. Vasiliev; F. Videbaek; S. E. Vigdor; Y. P. Viyogi; S. Vokal; S. A. Voloshin; M. Wada; W. T. Waggoner; M. Walker; F. Wang; G. Wang; J. S. Wang; Q. Wang; X. Wang; Y. Wang; J. C. Webb; G. D. Westfall; C. Whitten; H. Wieman; S. W. Wissink; R. Witt; Y. Wu; N. Xu; Q. H. Xu; Y. Xu; Z. Xu; P. Yepes; I.-K. Yoo; Q. Yue; M. Zawisza; H. Zbroszczyk; W. Zhan; H. Zhang; S. Zhang; W. M. Zhang; Y. Zhang; Z. P. Zhang; Y. Zhao; C. Zhong; J. Zhou; R. Zoulkarneev; Y. Zoulkarneeva; J. X. Zuo

2009-01-01

307

Gold nanoparticle (AuNPs) and gold nanopore (AuNPore) catalysts in organic synthesis.  

PubMed

Organic synthesis using gold has gained tremendous attention in last few years, especially heterogeneous gold catalysis based on gold nanoparticles has made its place in almost all organic reactions, because of the robust and green nature of gold catalysts. In this context, gold nanopore (AuNPore) with a 3D metal framework is giving a new dimension to heterogeneous gold catalysts. Interestingly, AuNPore chemistry is proving better than gold nanoparticles based chemistry. In this review, along with recent advances, major discoveries in heterogeneous gold catalysis are discussed. PMID:24525525

Takale, Balaram S; Bao, Ming; Yamamoto, Yoshinori

2014-04-01

308

Strangelet search in Au plus Au collisions at root s(NN)=200 GeV  

E-print Network

RAPID COMMUNICATIONS PHYSICAL REVIEW C 76, 011901(R) (2007) Strangelet search in Au+Au collisions at?sNN = 200 GeV B. I. Abelev,9 M. M. Aggarwal,30 Z. Ahammed,45 B. D. Anderson,20 D. Arkhipkin,13 G. S. Averichev,12 Y. Bai,28 J. Balewski,17 O.... Eckardt,24 W. R. Edwards,22 L. G. Efimov,12 V. Emelianov,52 J. Engelage,5 G. Eppley,36 B. Erazmus,40 M. Estienne,18 P. Fachini,3 R. Fatemi,23 J. Fedorisin,12 A. Feng,49 P. Filip,13 E. Finch,50 V. Fine,3 Y. Fisyak,3 J. Fu,49 C. A. Gagliardi,41 L. Gaillard...

Abelev, B. I.; Aggarwal, M. M.; Ahammed, Z.; Anderson, B. D.; Arkhipkin, D.; Averichev, G. S.; Bai, Y.; Balewski, J.; Barannikova, O.; Barnby, L. S.; Baudot, J.; Baumgart, S.; Belaga, V. V.; Bellingeri-Laurikainen, A.; Bellwied, R.; Benedosso, F.; Betts, R. R.; Bhardwaj, S.; Bhasin, A.; Bhati, A. K.; Bichsel, H.; Bielcik, J.; Bielcikova, J.; Bland, L. C.; Blyth, S. -L; Bombara, M.; Bonner, B. E.; Botje, M.; Bouchet, J.; Brandin, A. V.; Bravar, A.; Burton, T. P.; Bystersky, M.; Cadman, R. V.; Cai, X. Z.; Caines, H.; Sanchez, M. Calderon de la Barca; Callner, J.; Catu, O.; Cebra, D.; Chajecki, Z.; Chaloupka, P.; Chattopadhyay, S.; Chen, H. F.; Chen, J. H.; Chen, J. Y.; Cheng, J.; Cherney, M.; Chikanian, A.; Christie, W.; Chung, S. U.; Coffin, J. P.; Cormier, T. M.; Cosentino, M. R.; Cramer, J. G.; Crawford, H. J.; Das, D.; Dash, S.; Daugherity, M.; de Moura, M. M.; Dedovich, T. G.; DePhillips, M.; Derevschikov, A. A.; Didenko, L.; Dietel, T.; Djawotho, P.; Dogra, S. M.; Dong, X.; Drachenberg, J. L.; Draper, J. E.; Du, F.; Dunin, V. B.; Dunlop, J. C.; Mazumdar, M. R. Dutta; Eckardt, V.; Edwards, W. R.; Efimov, L. G.; Emelianov, V.; Engelage, J.; Eppley, G.; Erazmus, B.; Estienne, M.; Fachini, P.; Fatemi, R.; Fedorisin, J.; Feng, A.; Filip, P.; Finch, E.; Fine, V.; Fisyak, Y.; Fu, J.; Gagliardi, Carl A.; Gaillard, L.; Ganti, M. S.; Garcia-Solis, E.; Ghazikhanian, V.; Ghosh, P.; Gorbunov, Y. G.; Gos, H.; Grebenyuk, O.; Grosnick, D. D.; Guertin, S. M.; Guimaraes, K. S. F. F.; Gupta, N.; Haag, B.; Hallman, T. J.; Hamed, A.; Harris, J. W.; He, W.; Heinz, M.; Henry, T. W.; Hepplemann, S.; Hippolyte, B.; Hirsch, A.; Hjort, E.; Hoffman, A. M.; Hoffmann, G. W.; Hofman, D.; Hollis, R.; Horner, M. J.; Huang, H. Z.; Hughes, E. W.; Humanic, T. J.; Igo, G.; Iordanova, A.; Jacobs, P.; Jacobs, W. W.; Jakl, P.; Jia, F.; Jones, P. G.; Judd, E. G.; Kabana, S.; Kang, K.; Kapitan, J.; Kaplan, M.; Keane, D.; Kechechyan, A.; Kettler, D.; Khodyrev, V. Yu; Kim, B. C.; Kiryluk, J.; Kisiel, A.; Kislov, E. M.; Klein, S. R.; Knospe, A. G.; Kocoloski, A.; Koetke, D. D.; Kollegger, T.; Kopytine, M.; Kotchenda, L.; Kouchpil, V.; Kowalik, K. L.; Kravtsov, P.; Kravtsov, V. I.; Krueger, K.; Kuhn, C.; Kulikov, A. I.; Kumar, A.; Kurnadi, P.; Kuznetsov, A. A.; Lamont, M. A. C.; Landgraf, J. M.; Lange, S.; LaPointe, S.; Laue, F.; Lauret, J.; Lebedev, A.; Lednicky, R.; Lee, C. -H; Lehocka, S.; LeVine, M. J.; Li, C.; Li, Q.; Li, Y.; Lin, G.; Lin, X.; Lindenbaum, S. J.; Lisa, M. A.; Liu, F.; Liu, H.; Liu, J.; Liu, L.; Ljubicic, T.; Llope, W. J.; Longacre, R. S.; Love, W. A.; Lu, Y.; Ludlam, T.; Lynn, D.; Ma, G. L.; Ma, J. G.; Ma, Y. G.; Mahapatra, D. P.; Majka, R.; Mangotra, L. K.; Manweiler, R.; Margetis, S.; Markert, C.; Martin, L.; Matis, H. S.; Matulenko, Yu A.; McClain, C. J.; McShane, T. S.; Melnick, Yu; Meschanin, A.; Millane, J.; Miller, M. L.; Minaev, N. G.; Mioduszewski, Saskia; Mironov, C.; Mischke, A.; Mitchell, J.; Mohanty, B.; Morozov, D. A.; Munhoz, M. G.; Nandi, B. K.; Nattrass, C.; Nayak, T. K.; Nelson, J. M.; Nepali, N. S.; Netrakanti, P. K.; Nogach, L. V.; Nurushev, S. B.; Odyniec, G.; Ogawa, A.; Okorokov, V.; Oldenburg, M.; Olson, D.; Pachr, M.; Pal, S. K.; Panebratsev, Y.; Pavlinov, A. I.; Pawlak, T.; Peitzmann, T.; Perevoztchikov, V.; Perkins, C.; Peryt, W.; Phatak, S. C.; Planinic, M.; Pluta, J.; Poljak, N.; Porile, N.; Poskanzer, A. M.; Potekhin, M.; Potrebenikova, E.; Potukuchi, B. V. K. S.; Prindle, D.; Pruneau, C.; Putschke, J.; Qattan, I. A.; Raniwala, R.; Raniwala, S.; Ray, R. L.; Relyea, D.; Ridiger, A.; Ritter, H. G.; Roberts, J. B.; Rogachevskiy, O. V.; Romero, J. L.; Rose, A.; Roy, C.; Ruan, L.; Russcher, M. J.; Sahoo, R.; Sakrejda, I.; Sakuma, T.; Salur, S.; Sandweiss, J.; Sarsour, M.; Sazhin, P. S.; Schambach, J.; Scharenberg, R. P.; Schmitz, N.; Seger, J.; Selyuzhenkov, I.; Seyboth, P.; Shabetai, A.; Shahaliev, E.; Shao, M.; Sharma, M.; Shen, W. Q.; Shimanskiy, S. S.; Sichtermann, E. P.; Simon, F.; Singaraju, R. N.; Smirnov, N.; Snellings, R.; Sorensen, P.; Sowinski, J.; Speltz, J.; Spinka, H. M.; Srivastava, B.; Stadnik, A.; Stanislaus, T. D. S.; Staszak, D.; Stock, R.; Strikhanov, M.; Stringfellow, B.; Suaide, A. A. P.; Suarez, M. C.; Subba, N. L.; Sumbera, M.; Sun, X. M.; Sun, Z.; Surrow, B.; Symons, T. J. M.; de Toledo, A. Szanto; Szeliga, B.; Takahashi, J.; Tang, A. H.; Tarnowsky, T.; Thomas, J. H.; Timmins, A. R.; Timoshenko, S.; Tokarev, M.; Trainor, T. A.; Trentalange, S.; Tribble, Robert E.; Tsai, O. D.; Ulery, J.; Ullrich, T.; Underwood, D. G.; Van Buren, G.; van der Kolk, N.; van Leeuwen, M.; Vander Molen, A. M.; Varma, R.; Vasilevski, I. M.; Vasiliev, A. N.; Vernet, R.; Vigdor, S. E.; Viyogi, Y. P.; Vokal, S.; Voloshin, S. A.; Waggoner, W. T.; Wang, F.; Wang, G.; Wang, J. S.

2007-01-01

309

Electronic and magnetic properties of ultrathin Au/Pt nanowires.  

PubMed

We have reported the synthesis of Au(25)Pt(75) and Au(48)Pt(52) alloyed ultrathin nanowires with average widths of less than 3 nm via a wet chemistry approach at room temperature. Using a combination of techniques, including scanning transmission electron microscopy equipped with X-ray energy dispersive spectroscopy, ultraviolet-visible spectroscopy, and X-ray absorption near-edge structure and extended X-ray absorption fine structure spectroscopies, we identified the stoichiometry-dependent heterogeneous crystalline structures, as well as electronic structures with respect to the charge transfer between Pt and Au within both nanowires. In particular, we observed d-charge depletion at the Au site and the d-charge gain at the Pt site in Au(48)Pt(52) nanowires, which accounted for its ferromagnetic magnetic behavior, in contrast to the paramagnetism and diamagnetism appearing respectively in bulk Pt and Au. PMID:19645434

Teng, Xiaowei; Feygenson, Mikhail; Wang, Qi; He, Jiaqing; Du, Wenxin; Frenkel, Anatoly I; Han, Weiqiang; Aronson, Meigan

2009-09-01

310

Electronic and Magnetic Properties of Ultrathin Au/Pt Nanowires  

SciTech Connect

We have reported the synthesis of Au25Pt75 and Au48Pt52 alloyed ultrathin nanowires with average widths of less than 3 nm via a wet chemistry approach at room temperature. Using a combination of techniques, including scanning transmission electron microscopy equipped with X-ray energy dispersive spectroscopy, ultraviolet-visible spectroscopy, and X-ray absorption near-edge structure and extended X-ray absorption fine structure spectroscopies, we identified the stoichiometry-dependent heterogeneous crystalline structures, as well as electronic structures with respect to the charge transfer between Pt and Au within both nanowires. In particular, we observed d-charge depletion at the Au site and the d-charge gain at the Pt site in Au48Pt52 nanowires, which accounted for its ferromagnetic magnetic behavior, in contrast to the paramagnetism and diamagnetism appearing respectively in bulk Pt and Au.

Teng, X.; Feygenson, M; Wang, Q; He, J; Du, W; Frenkel, A; Han, W; Aronson, M

2009-01-01

311

Au24(SAdm)16 Nanomolecules: X-ray Crystal Structure, Theoretical Analysis, Adaptability of Adamantane Ligands to Form Au23(SAdm)16 and Au25(SAdm)16, and Its Relation to Au25(SR)18.  

PubMed

Here we present the crystal structure, experimental and theoretical characterization of a Au24(SAdm)16 nanomolecule. The composition was verified by X-ray crystallography and mass spectrometry, and its optical and electronic properties were investigated via experiments and first-principles calculations. Most importantly, the focus of this work is to demonstrate how the use of bulky thiolate ligands, such as adamantanethiol, versus the commonly studied phenylethanethiolate ligands leads to a great structural flexibility, where the metal core changes its shape from five-fold to crystalline-like motifs and can adapt to the formation of Au241(SAdm)16, namely, Au23(SAdm)16, Au24(SAdm)16, and Au25(SAdm)16. The basis for the construction of a thermodynamic phase diagram of Au nanomolecules in terms of ligands and solvent features is also outlined. PMID:25308728

Crasto, David; Barcaro, Giovanni; Stener, Mauro; Sementa, Luca; Fortunelli, Alessandro; Dass, Amala

2014-10-22

312

Growth of Au Nanowires at the Interface of Air/Water Zhichuan Xu,,  

E-print Network

containing CTAB, HAuCl4, and ascorbic acid. The Au coating layer is composed of 10-30 nm Au islands, HAuCl4, and ascorbic acid. The nanosized Au islands initiated the growth of Au nanostructures into Au. Experimental Section Synthesis. As shown in Scheme 1, HAuCl4, CTAB, and ascorbic acid were dissolved

Gao, Hongjun

313

TUDE AU MICROSCOPE LECTRONIQUE A BALAYAGE DE L'PITHLIUM  

E-print Network

?TUDE AU MICROSCOPE ?LECTRONIQUE A BALAYAGE DE L'?PITH?LIUM DE L'INTESTIN GR?LE DU PORC Michèle feuille (leaf-shaped : 1), l'étude au microscope à balayage donne une vue en relief de la surface présence de zones d'extrusion que l'on retrouve fréquemment au microscope électronique à balayage. De plus

Paris-Sud XI, Université de

314

Synthesis and self-organization of Au nanoparticles  

Microsoft Academic Search

Monodisperse (diameter 10 nm) Au nanoparticles have been synthesized by the reduction of AuCl3 at high temperatures, in commercial oleyl amine, in the presence of tri-octyl phosphine oxide (TOPO). The oleyl amine molecule has multiple roles, acting as high-boiling-point solvent, capping agent and reducing agent. The Au nanocrystalline particles have been studied by powder x-ray diffraction (XRD) and transmission electron

S. Pyrpassopoulos; D. Niarchos; G. Nounesis; N. Boukos; I. Zafiropoulou; V. Tzitzios

2007-01-01

315

Facile Synthesis of Gold Nanoparticles with Narrow Size Distribution by Using AuCl or AuBr as the Precursor  

PubMed Central

Gold(I) halides, including AuCl and AuBr, were employed for the first time as precursors in the synthesis of Au nanoparticles. The synthesis was accomplished by dissolving AuI halides in chloroform in the presence of alkylamines, followed by decomposition at 60 C. The relative low stability of the AuI halides and there derivatives eliminated the need for a reducing agent, which is usually required for AuIII-based precursors to generate Au nanoparticles. Controlled growth of Au nanoparticles with a narrow size distribution was achieved when AuCl and oleylamine were used for the synthesis. FTIR and mass spectra revealed that a complex, [AuCl(oleylamine)], was formed through coordination between oleylamine and AuCl. Thermolysis of the complex in chloroform led to the formation of dioleylamine and Au nanoparticles. When oleylamine was replaced with octadecylamine, much larger nanoparticles were obtained due to the lower stability of [AuCl(octadecylamine)] complex relative to [AuCl(oleylamine)]. Au nanoparticles can also be prepared from AuBr through thermolysis of the [AuBr(oleylamine)] complex. Due to the oxidative etching effect caused by Br?, the nanoparticles obtained from AuBr exhibited an aspect ratio of 1.28, in contrast to 1.0 for the particles made from AuCl. Compared to the existing methods for preparing Au nanoparticles through the reduction of AuIII compounds, this new approach based on AuI halides offers great flexibility in terms of size control. PMID:18058964

Lu, Xianmao; Tuan, Hsing-Yu; Korgel, Brian A.; Xia, Younan

2008-01-01

316

Control of density and LSPR of Au nanoparticles on graphene  

NASA Astrophysics Data System (ADS)

In this study, we introduce the tunable density and localized surface plasmon resonance (LSPR) of plasmonic gold (Au) nanoparticles which were formed on monolayer graphene at room temperature, based on the difference of the reduction potential between graphene and the Au3+ precursor. The size of the Au nanoparticles was ?40 nm, which is very desirable to provide an optical enhancement effect by LSPR in the full visible range. It is demonstrated that the density of the Au nanoparticles was modulated by the surface energy of the graphene on the substrate as well as the concentration of the Au3+ precursor. Furthermore, the cycle number of the reduction process strongly affected the distribution of the nanoparticle size and their optical properties. The LSPR of the plasmonic Au nanoparticles was red-shifted from 560 to 620 nm and its full width at half maximum broadened as the Au3+ precursor concentration was increased and the cyclic reduction process progressed. Based on the optical enhancement of the plasmonic Au nanoparticles and the extraordinary physical characteristics of graphene, the Au/graphene assembly may offer a promising optoelectronic platform for next-generation flexible optical electronics or biosensors.

Lee, Seungwoo; Lee, Min hyung; Shin, Hyeon-jin; Choi, Dukyun

2013-07-01

317

Enhanced ultraviolet photoresponse in Au/ZnO nanorods  

NASA Astrophysics Data System (ADS)

ZnO nanorods (NRs) have been decorated by Au nanoparticles (NPs) by a chemical method. The ultraviolet (UV) photoresponse of Au/ZnO NRs has been investigated. As the loading of Au NPs increases, the photocurrent as well as the photo-to-dark current ratio (gain) increases attaining a maximum gain value which is ?15 times higher than that of the pristine ZnO NRs. Photoresponse enhancement is probably due to efficient separation of photo-generated electron-holes by an enhanced electric field and hot carrier injection over the Au localized Schottky junctions.

Mahanti, Moumita; Basak, Durga

2014-09-01

318

Diffusion of the Linear CH3S-Au-SCH3 Complex on Au(111) from First Principles  

SciTech Connect

Recent experimental and computational advances have clearly established the importance of the linear alkylthiolate-Au-alkylthiolate (RS-Au-SR) complex at the interface between the thiolate groups and the gold surface. By using density functional theory-based first principles method, here we show that the elementary diffusion step of this linear complex on Au(111) has a barrier of only {approx}0.5 eV in the case of methylthiolate, indicating great mobility of the linear complex on Au(111). The role of this low barrier in the formation of a self-assembled monolayer of thiolate groups in the form of RS-Au-SR on Au(111) is discussed.

Jiang, Deen [ORNL; Dai, Sheng [ORNL

2009-01-01

319

Optical Response of Nanostructured Ag/Au And Au/Ag Bilayer Thin Films Deposited by Ion Beam Sputtering  

SciTech Connect

Bilayer metal thin films of total thickness 15 to 20 nm, were deposited by ion beam sputtering at very low ion energy (150 eV-250 eV). The thickness of bottom metal layer was kept constant whereas the thickness of top metal layer were varied in both, Ag/Au and Au/Ag bilayer, cases. There is a red shift in the position of the SPR peak due to the presence of the top metal layer. In the case of Au/Ag the presence of Au causes a shift from 444 nm to 628 nm while in the case of Ag/Au the shift is from 564 to 686 nm due to the presence of the Ag layer on Au. The tunability of plasmon resonances is attributed to the process of plasmon hybridization.

Brahma, Rajeeb; Krishna, M. Ghanashyam [School of Physics, University of Hyderabad, Hyderabad-500 046 (India)

2011-07-15

320

Observation of D0 Meson Nuclear Modifications in Au +Au Collisions at ?sNN =200 GeV  

NASA Astrophysics Data System (ADS)

We report the first measurement of charmed-hadron (D0) production via the hadronic decay channel (D0?K-+?+) in Au +Au collisions at ?sNN =200 GeV with the STAR experiment. The charm production cross section per nucleon-nucleon collision at midrapidity scales with the number of binary collisions, Nbin, from p +p to central Au +Au collisions. The D0 meson yields in central Au +Au collisions are strongly suppressed compared to those in p+p scaled by Nbin, for transverse momenta pT>3 GeV /c, demonstrating significant energy loss of charm quarks in the hot and dense medium. An enhancement at intermediate pT is also observed. Model calculations including strong charm-medium interactions and coalescence hadronization describe our measurements.

Adamczyk, L.; Adkins, J. K.; Agakishiev, G.; Aggarwal, M. M.; Ahammed, Z.; Alekseev, I.; Alford, J.; Anson, C. D.; Aparin, A.; Arkhipkin, D.; Aschenauer, E. C.; Averichev, G. S.; Banerjee, A.; Beavis, D. R.; Bellwied, R.; Bhasin, A.; Bhati, A. K.; Bhattarai, P.; Bichsel, H.; Bielcik, J.; Bielcikova, J.; Bland, L. C.; Bordyuzhin, I. G.; Borowski, W.; Bouchet, J.; Brandin, A. V.; Brovko, S. G.; Bltmann, S.; Bunzarov, I.; Burton, T. P.; Butterworth, J.; Caines, H.; Caldern de la Barca Snchez, M.; Cebra, D.; Cendejas, R.; Cervantes, M. C.; Chaloupka, P.; Chang, Z.; Chattopadhyay, S.; Chen, H. F.; Chen, J. H.; Chen, L.; Cheng, J.; Cherney, M.; Chikanian, A.; Christie, W.; Chwastowski, J.; Codrington, M. J. M.; Contin, G.; Cramer, J. G.; Crawford, H. J.; Cui, X.; Das, S.; Davila Leyva, A.; De Silva, L. C.; Debbe, R. R.; Dedovich, T. G.; Deng, J.; Derevschikov, A. A.; Derradi de Souza, R.; Dhamija, S.; di Ruzza, B.; Didenko, L.; Dilks, C.; Ding, F.; Djawotho, P.; Dong, X.; Drachenberg, J. L.; Draper, J. E.; Du, C. M.; Dunkelberger, L. E.; Dunlop, J. C.; Efimov, L. G.; Engelage, J.; Engle, K. S.; Eppley, G.; Eun, L.; Evdokimov, O.; Eyser, O.; Fatemi, R.; Fazio, S.; Fedorisin, J.; Filip, P.; Finch, E.; Fisyak, Y.; Flores, C. E.; Gagliardi, C. A.; Gangadharan, D. R.; Garand, D.; Geurts, F.; Gibson, A.; Girard, M.; Gliske, S.; Greiner, L.; Grosnick, D.; Gunarathne, D. S.; Guo, Y.; Gupta, A.; Gupta, S.; Guryn, W.; Haag, B.; Hamed, A.; Han, L.-X.; Haque, R.; Harris, J. W.; Heppelmann, S.; Hirsch, A.; Hoffmann, G. W.; Hofman, D. J.; Horvat, S.; Huang, B.; Huang, H. Z.; Huang, X.; Huck, P.; Humanic, T. J.; Igo, G.; Jacobs, W. W.; Jang, H.; Judd, E. G.; Kabana, S.; Kalinkin, D.; Kang, K.; Kauder, K.; Ke, H. W.; Keane, D.; Kechechyan, A.; Kesich, A.; Khan, Z. H.; Kikola, D. P.; Kisel, I.; Kisiel, A.; Koetke, D. D.; Kollegger, T.; Konzer, J.; Koralt, I.; Kotchenda, L.; Kraishan, A. F.; Kravtsov, P.; Krueger, K.; Kulakov, I.; Kumar, L.; Kycia, R. A.; Lamont, M. A. C.; Landgraf, J. M.; Landry, K. D.; Lauret, J.; Lebedev, A.; Lednicky, R.; Lee, J. H.; LeVine, M. J.; Li, C.; Li, W.; Li, X.; Li, X.; Li, Y.; Li, Z. M.; Lisa, M. A.; Liu, F.; Ljubicic, T.; Llope, W. J.; Lomnitz, M.; Longacre, R. S.; Luo, X.; Ma, G. L.; Ma, Y. G.; Madagodagettige Don, D. M. M. D.; Mahapatra, D. P.; Majka, R.; Margetis, S.; Markert, C.; Masui, H.; Matis, H. S.; McDonald, D.; McShane, T. S.; Minaev, N. G.; Mioduszewski, S.; Mohanty, B.; Mondal, M. M.; Morozov, D. A.; Mustafa, M. K.; Nandi, B. K.; Nasim, Md.; Nayak, T. K.; Nelson, J. M.; Nigmatkulov, G.; Nogach, L. V.; Noh, S. Y.; Novak, J.; Nurushev, S. B.; Odyniec, G.; Ogawa, A.; Oh, K.; Ohlson, A.; Okorokov, V.; Oldag, E. W.; Olvitt, D. L.; Pachr, M.; Page, B. S.; Pal, S. K.; Pan, Y. X.; Pandit, Y.; Panebratsev, Y.; Pawlak, T.; Pawlik, B.; Pei, H.; Perkins, C.; Peryt, W.; Pile, P.; Planinic, M.; Pluta, J.; Poljak, N.; Porter, J.; Poskanzer, A. M.; Pruthi, N. K.; Przybycien, M.; Pujahari, P. R.; Putschke, J.; Qiu, H.; Quintero, A.; Ramachandran, S.; Raniwala, R.; Raniwala, S.; Ray, R. L.; Riley, C. K.; Ritter, H. G.; Roberts, J. B.; Rogachevskiy, O. V.; Romero, J. L.; Ross, J. F.; Roy, A.; Ruan, L.; Rusnak, J.; Rusnakova, O.; Sahoo, N. R.; Sahu, P. K.; Sakrejda, I.; Salur, S.; Sandweiss, J.; Sangaline, E.; Sarkar, A.; Schambach, J.; Scharenberg, R. P.; Schmah, A. M.; Schmidke, W. B.; Schmitz, N.; Seger, J.; Seyboth, P.; Shah, N.; Shahaliev, E.; Shanmuganathan, P. V.; Shao, M.; Sharma, B.; Shen, W. Q.; Shi, S. S.; Shou, Q. Y.; Sichtermann, E. P.; Singaraju, R. N.; Skoby, M. J.; Smirnov, D.; Smirnov, N.; Solanki, D.; Sorensen, P.; Spinka, H. M.; Srivastava, B.; Stanislaus, T. D. S.; Stevens, J. R.; Stock, R.; Strikhanov, M.; Stringfellow, B.; Sumbera, M.; Sun, X.; Sun, X. M.; Sun, Y.; Sun, Z.; Surrow, B.; Svirida, D. N.; Symons, T. J. M.; Szelezniak, M. A.; Takahashi, J.; Tang, A. H.; Tang, Z.; Tarnowsky, T.; Thomas, J. H.; Timmins, A. R.; Tlusty, D.; Tokarev, M.; Trentalange, S.; Tribble, R. E.; Tribedy, P.; Trzeciak, B. A.; Tsai, O. D.; Turnau, J.; Ullrich, T.; Underwood, D. G.; Van Buren, G.; van Nieuwenhuizen, G.; Vandenbroucke, M.; Vanfossen, J. A.; Varma, R.; Vasconcelos, G. M. S.; Vasiliev, A. N.; Vertesi, R.; Videbk, F.; Viyogi, Y. P.; Vokal, S.; Vossen, A.; Wada, M.; Wang, F.; Wang, G.; Wang, H.; Wang, J. S.; Wang, X. L.; Wang, Y.; Wang, Y.; Webb, G.; Webb, J. C.; Westfall, G. D.; Wieman, H.; Wissink, S. W.; Witt, R.; Wu, Y. F.; Xiao, Z.; Xie, W.; Xin, K.; Xu, H.; Xu, J.; Xu, N.; Xu, Q. H.; Xu, Y.; Xu, Z.; Yan, W.; Yang, C.; Yang, Y.; Yang, Y.; Ye, Z.; Yepes, P.; Yi, L.; Yip, K.; Yoo, I.-K.; Yu, N.; Zawisza, Y.; Zbroszczyk, H.; Zha, W.; Zhang, J. B.; Zhang, J. L.; Zhang, S.; Zhang, X. P.; Zhang, Y.; Zhang, Z. P.; Zhao, F.; Zhao, J.; Zhong, C.; Zhu, X.; Zhu, Y. H.; Zoulkarneeva, Y.; Zyzak, M.

2014-10-01

321

Violence et normes : le conflit notionnel dans les rapports familiaux L'on a coutume d'admettre que la famille se prsente comme la cellule vitale de la  

E-print Network

1 Violence et normes : le conflit notionnel dans les rapports familiaux L'on a coutume d la forme de conflits, ou, ce que l'on est légitime de qualifier en droit de « violences »2 . Deux , définit les contours de la violence familiale, et prévoit des règles de sanction, lorsque les individus

Paris-Sud XI, Université de

322

Communication au colloque "De l'impolitesse la violence verbale" La vrit au risque de la violence  

E-print Network

Communication au colloque "De l'impolitesse à la violence verbale" La vérité au risque de la violence Remarques sur la stylistique du rap en français1 HAMMOU Karim, SHADYC-EHESS (Marseille) K. Hammou ­ « La vérité au risque de la violence. Remarques sur l'esthétique du rap en français. » 1 halshs

Paris-Sud XI, Université de

323

On ira tous au paradis ? Images de l'au-del dans le judasme et le christianisme  

E-print Network

point de ne pas éprouver cet effroi au regard des souffrances du Christ, et de ne pas prendre conscience'image et aux souffrances du Christ, que ce soit dans la vie, ou en enfer ; au plus tard lors de la mort, et au purgatoire, il faudra tomber dans cet effroi, frémir, trembler, et ressentir tout ce que le Christ

Halazonetis, Thanos

324

Charged-particle rapidity density in Au+Au collisions in a quark combination model  

SciTech Connect

Rapidity/pseudorapidity densities for charged particles and their centrality, rapidity, and energy dependence in Au+Au collisions at the Relativistic Heavy Ion Collider are studied in a quark combination model. Using a Gaussian-type rapidity distribution for constituent quarks as a result of Landau hydrodynamic evolution, the data at {radical}(s{sub NN})=130,200 GeV at various centralities in full pseudorapidity range are well described, and the charged-particle multiplicities are reproduced as functions of the number of participants. The energy dependence of the shape of the dN{sub ch}/d{eta} distribution is also described at various collision energies {radical}(s{sub NN})=200,130,62.4 GeV in central collisions with same value of parameters except 19.6 GeV. The calculated rapidity distributions and yields for the charged pions and kaons in central Au+Au collisions at {radical}(s{sub NN})=200 GeV are compared with experimental data of the BRAHMS Collaboration.

Shao Fenglan [Department of Physics, Qufu Normal University, Shandong 273165 (China); Yao Tao; Xie Qubing [Department of Physics, Shandong University, Shandong 250100 (China)

2007-03-15

325

Energy Loss and Flow of Heavy Quarks in Au+Au Collisions at sNN=200GeV  

Microsoft Academic Search

The PHENIX experiment at the BNL Relativistic Heavy Ion Collider (RHIC) has measured electrons with 0.3Au+Au collisions at sNN=200GeV. The nuclear modification factor RAA relative to p+p collisions shows a strong suppression in central Au+Au collisions, indicating substantial energy loss of heavy quarks in the medium produced at RHIC

A. Adare; S. Afanasiev; C. Aidala; N. N. Ajitanand; Y. Akiba; H. Al-Bataineh; J. Alexander; A. Al-Jamel; K. Aoki; L. Aphecetche; R. Armendariz; S. H. Aronson; J. Asai; E. T. Atomssa; R. Averbeck; T. C. Awes; B. Azmoun; V. Babintsev; G. Baksay; L. Baksay; A. Baldisseri; K. N. Barish; P. D. Barnes; B. Bassalleck; S. Bathe; S. Batsouli; V. Baublis; F. Bauer; A. Bazilevsky; S. Belikov; R. Bennett; Y. Berdnikov; A. A. Bickley; M. T. Bjorndal; J. G. Boissevain; H. Borel; K. Boyle; M. L. Brooks; D. S. Brown; D. Bucher; H. Buesching; V. Bumazhnov; G. Bunce; J. M. Burward-Hoy; S. Butsyk; S. Campbell; J.-S. Chai; B. S. Chang; J.-L. Charvet; S. Chernichenko; J. Chiba; C. Y. Chi; M. Chiu; I. J. Choi; T. Chujo; P. Chung; A. Churyn; V. Cianciolo; C. R. Cleven; Y. Cobigo; B. A. Cole; M. P. Comets; P. Constantin; M. Csand; T. Csrgo; T. Dahms; K. Das; G. David; M. B. Deaton; K. Dehmelt; H. Delagrange; A. Denisov; D. D'Enterria; A. Deshpande; E. J. Desmond; O. Dietzsch; A. Dion; M. Donadelli; J. L. Drachenberg; O. Drapier; A. Drees; A. K. Dubey; A. Durum; V. Dzhordzhadze; Y. V. Efremenko; J. Egdemir; F. Ellinghaus; W. S. Emam; A. Enokizono; H. En'Yo; B. Espagnon; S. Esumi; K. O. Eyser; D. E. Fields; M. Finger; F. Fleuret; S. L. Fokin; B. Forestier; Z. Fraenkel; J. E. Frantz; A. Franz; A. D. Frawley; K. Fujiwara; Y. Fukao; S.-Y. Fung; T. Fusayasu; S. Gadrat; I. Garishvili; F. Gastineau; M. Germain; A. Glenn; H. Gong; M. Gonin; J. Gosset; Y. Goto; R. Granier de Cassagnac; N. Grau; S. V. Greene; M. Grosse Perdekamp; T. Gunji; H.-. Gustafsson; T. Hachiya; A. Hadj Henni; C. Haegemann; J. S. Haggerty; M. N. Hagiwara; H. Hamagaki; R. Han; H. Harada; E. P. Hartouni; K. Haruna; M. Harvey; E. Haslum; K. Hasuko; R. Hayano; M. Heffner; T. K. Hemmick; T. Hester; J. M. Heuser; X. He; H. Hiejima; J. C. Hill; R. Hobbs; M. Hohlmann; M. Holmes; W. Holzmann; K. Homma; B. Hong; T. Horaguchi; D. Hornback; M. G. Hur; T. Ichihara; K. Imai; M. Inaba; Y. Inoue; D. Isenhower; L. Isenhower; M. Ishihara; T. Isobe; M. Issah; A. Isupov; B. V. Jacak; J. Jia; J. Jin; O. Jinnouchi; B. M. Johnson; K. S. Joo; D. Jouan; F. Kajihara; S. Kametani; N. Kamihara; J. Kamin; M. Kaneta; J. H. Kang; H. Kano; H. Kanou; T. Kawagishi; D. Kawall; A. V. Kazantsev; S. Kelly; A. Khanzadeev; J. Kikuchi; D. H. Kim; D. J. Kim; E. Kim; Y.-S. Kim; E. Kinney; A. Kiss; E. Kistenev; A. Kiyomichi; J. Klay; C. Klein-Boesing; L. Kochenda; V. Kochetkov; B. Komkov; M. Konno; D. Kotchetkov; A. Kozlov; A. Krl; A. Kravitz; P. J. Kroon; J. Kubart; G. J. Kunde; N. Kurihara; K. Kurita; M. J. Kweon; Y. Kwon; G. S. Kyle; R. Lacey; Y.-S. Lai; J. G. Lajoie; A. Lebedev; Y. Le Bornec; S. Leckey; D. M. Lee; M. K. Lee; T. Lee; M. J. Leitch; M. A. L. Leite; B. Lenzi; H. Lim; T. Liska; A. Litvinenko; M. X. Liu; X. Li; B. Love; D. Lynch; C. F. Maguire; Y. I. Makdisi; A. Malakhov; M. D. Malik; V. I. Manko; Y. Mao; L. Masek; H. Masui; F. Matathias; M. C. McCain; M. McCumber; P. L. McGaughey; Y. Miake; P. Mikes; K. Miki; T. E. Miller; A. Milov; S. Mioduszewski; G. C. Mishra; M. Mishra; J. T. Mitchell; M. Mitrovski; A. Morreale; J. M. Moss; T. V. Moukhanova; D. Mukhopadhyay; J. Murata; S. Nagamiya; Y. Nagata; J. L. Nagle; M. Naglis; I. Nakagawa; Y. Nakamiya; T. Nakamura; K. Nakano; J. Newby; M. Nguyen; B. E. Norman; A. S. Nyanin; J. Nystrand; E. O'Brien; S. X. Oda; C. A. Ogilvie; H. Ohnishi; I. D. Ojha; H. Okada; K. Okada; M. Oka; O. O. Omiwade; A. Oskarsson; I. Otterlund; M. Ouchida; K. Ozawa; R. Pak; D. Pal; A. P. T. Palounek; V. Pantuev; V. Papavassiliou; W. J. Park; S. F. Pate; H. Pei; J.-C. Peng; H. Pereira; V. Peresedov; D. Yu. Peressounko; C. Pinkenburg; R. P. Pisani; M. L. Purschke; A. K. Purwar; H. Qu; J. Rak; A. Rakotozafindrabe; I. Ravinovich; K. F. Read; S. Rembeczki; M. Reuter; K. Reygers; V. Riabov; Y. Riabov; G. Roche; A. Romana; M. Rosati; S. S. E. Rosendahl; P. Rosnet; P. Rukoyatkin; V. L. Rykov; S. S. Ryu; B. Sahlmueller; N. Saito; T. Sakaguchi; S. Sakai; H. Sakata; V. Samsonov; H. D. Sato; S. Sato; S. Sawada; J. Seele; R. Seidl; V. Semenov; R. Seto; D. Sharma; T. K. Shea; I. Shein; A. Shevel; T.-A. Shibata; K. Shigaki; M. Shimomura; T. Shohjoh; K. Shoji; A. Sickles; C. L. Silva; D. Silvermyr; C. Silvestre; K. S. Sim; C. P. Singh; V. Singh; S. Skutnik; M. Slunecka; W. C. Smith; A. Soldatov; R. A. Soltz; W. E. Sondheim; S. P. Sorensen; I. V. Sourikova; F. Staley; P. W. Stankus; E. Stenlund; M. Stepanov; A. Ster; S. P. Stoll; T. Sugitate; C. Suire; J. P. Sullivan; J. Sziklai; T. Tabaru; S. Takagi; E. M. Takagui; A. Taketani; K. H. Tanaka; Y. Tanaka; K. Tanida; M. J. Tannenbaum; A. Taranenko; P. Tarjn; T. L. Thomas; M. Togawa; A. Toia; J. Tojo; L. Tomsek; H. Torii; R. S. Towell; V.-N. Tram; I. Tserruya; Y. Tsuchimoto; S. K. Tuli; H. Tydesj; N. Tyurin; C. Vale; H. Valle; H. W. van Hecke; J. Velkovska; R. Vertesi; A. A. Vinogradov; M. Virius; V. Vrba; E. Vznuzdaev

2007-01-01

326

Strangeness Enhancement in Cu-Cu and Au-Au Collisions at sNN=200GeV  

NASA Astrophysics Data System (ADS)

We report new STAR measurements of midrapidity yields for the ?, ?, KS0, ?-, ?+, ?-, ?+ particles in Cu+Cu collisions at sNN=200GeV, and midrapidity yields for the ?, ?, KS0 particles in Au+Au at sNN=200GeV. We show that, at a given number of participating nucleons, the production of strange hadrons is higher in Cu+Cu collisions than in Au+Au collisions at the same center-of-mass energy. We find that aspects of the enhancement factors for all particles can be described by a parametrization based on the fraction of participants that undergo multiple collisions.

Agakishiev, G.; Aggarwal, M. M.; Ahammed, Z.; Alakhverdyants, A. V.; Alekseev, I.; Alford, J.; Anderson, B. D.; Anson, C. D.; Arkhipkin, D.; Averichev, G. S.; Balewski, J.; Barnby, L. S.; Beavis, D. R.; Behera, N. K.; Bellwied, R.; Betancourt, M. J.; Betts, R. R.; Bhasin, A.; Bhati, A. K.; Bichsel, H.; Bielcik, J.; Bielcikova, J.; Bland, L. C.; Bordyuzhin, I. G.; Borowski, W.; Bouchet, J.; Braidot, E.; Brandin, A. V.; Bridgeman, A.; Brovko, S. G.; Bruna, E.; Bueltmann, S.; Bunzarov, I.; Burton, T. P.; Cai, X. Z.; Caines, H.; Caldern de La Barca Snchez, M.; Cebra, D.; Cendejas, R.; Cervantes, M. C.; Chaloupka, P.; Chattopadhyay, S.; Chen, H. F.; Chen, J. H.; Chen, J. Y.; Chen, L.; Cheng, J.; Cherney, M.; Chikanian, A.; Choi, K. E.; Christie, W.; Chung, P.; Codrington, M. J. M.; Corliss, R.; Cramer, J. G.; Crawford, H. J.; Cui, X.; Davila Leyva, A.; de Silva, L. C.; Debbe, R. R.; Dedovich, T. G.; Deng, J.; Derevschikov, A. A.; Derradi de Souza, R.; Didenko, L.; Djawotho, P.; Dogra, S. M.; Dong, X.; Drachenberg, J. L.; Draper, J. E.; Du, C. M.; Dunlop, J. C.; Efimov, L. G.; Elnimr, M.; Engelage, J.; Eppley, G.; Estienne, M.; Eun, L.; Evdokimov, O.; Fatemi, R.; Fedorisin, J.; Fersch, R. G.; Filip, P.; Finch, E.; Fine, V.; Fisyak, Y.; Gagliardi, C. A.; Gangadharan, D. R.; Geurts, F.; Ghosh, P.; Gorbunov, Y. N.; Gordon, A.; Grebenyuk, O. G.; Grosnick, D.; Gupta, A.; Gupta, S.; Guryn, W.; Haag, B.; Hajkova, O.; Hamed, A.; Han, L.-X.; Harris, J. W.; Hays-Wehle, J. P.; Heinz, M.; Heppelmann, S.; Hirsch, A.; Hjort, E.; Hoffmann, G. W.; Hofman, D. J.; Huang, B.; Huang, H. Z.; Humanic, T. J.; Huo, L.; Igo, G.; Jacobs, P.; Jacobs, W. W.; Jena, C.; Jin, F.; Jones, P. G.; Joseph, J.; Judd, E. G.; Kabana, S.; Kang, K.; Kapitan, J.; Kauder, K.; Ke, H. W.; Keane, D.; Kechechyan, A.; Kettler, D.; Kikola, D. P.; Kiryluk, J.; Kisiel, A.; Kizka, V.; Klein, S. R.; Knospe, A. G.; Koetke, D. D.; Kollegger, T.; Konzer, J.; Koralt, I.; Koroleva, L.; Korsch, W.; Kotchenda, L.; Kouchpil, V.; Kravtsov, P.; Krueger, K.; Krus, M.; Kumar, L.; Lamont, M. A. C.; Landgraf, J. M.; Lapointe, S.; Lauret, J.; Lebedev, A.; Lednicky, R.; Lee, J. H.; Leight, W.; Levine, M. J.; Li, C.; Li, L.; Li, N.; Li, W.; Li, X.; Li, X.; Li, Y.; Li, Z. M.; Lima, L. M.; Lisa, M. A.; Liu, F.; Liu, H.; Liu, J.; Ljubicic, T.; Llope, W. J.; Longacre, R. S.; Lu, Y.; Lukashov, E. V.; Luo, X.; Ma, G. L.; Ma, Y. G.; Mahapatra, D. P.; Majka, R.; Mall, O. I.; Manweiler, R.; Margetis, S.; Markert, C.; Masui, H.; Matis, H. S.; McDonald, D.; McShane, T. S.; Meschanin, A.; Milner, R.; Minaev, N. G.; Mioduszewski, S.; Mitrovski, M. K.; Mohammed, Y.; Mohanty, B.; Mondal, M. M.; Morozov, B.; Morozov, D. A.; Munhoz, M. G.; Mustafa, M. K.; Naglis, M.; Nandi, B. K.; Nayak, T. K.; Nelson, J. M.; Nogach, L. V.; Nurushev, S. B.; Odyniec, G.; Ogawa, A.; Oh, K.; Ohlson, A.; Okorokov, V.; Oldag, E. W.; Oliveira, R. A. N.; Olson, D.; Pachr, M.; Page, B. S.; Pal, S. K.; Pandit, Y.; Panebratsev, Y.; Pawlak, T.; Pei, H.; Peitzmann, T.; Perkins, C.; Peryt, W.; Pile, P.; Planinic, M.; Ploskon, M. A.; Pluta, J.; Plyku, D.; Poljak, N.; Porter, J.; Poskanzer, A. M.; Potukuchi, B. V. K. S.; Powell, C. B.; Prindle, D.; Pruneau, C.; Pruthi, N. K.; Pujahari, P. R.; Putschke, J.; Qiu, H.; Raniwala, R.; Raniwala, S.; Ray, R. L.; Redwine, R.; Reed, R.; Ritter, H. G.; Roberts, J. B.; Rogachevskiy, O. V.; Romero, J. L.; Ruan, L.; Rusnak, J.; Sahoo, N. R.; Sakrejda, I.; Salur, S.; Sandweiss, J.; Sangaline, E.; Sarkar, A.; Schambach, J.; Scharenberg, R. P.; Schaub, J.; Schmah, A. M.; Schmitz, N.; Schuster, T. R.; Seele, J.; Seger, J.; Selyuzhenkov, I.; Seyboth, P.; Shah, N.; Shahaliev, E.; Shao, M.; Sharma, M.; Shi, S. S.; Shou, Q. Y.; Sichtermann, E. P.; Simon, F.; Singaraju, R. N.; Skoby, M. J.; Smirnov, N.; Solanki, D.; Sorensen, P.; Desouza, U. G.; Spinka, H. M.; Srivastava, B.; Stanislaus, T. D. S.; Steadman, S. G.; Stevens, J. R.; Stock, R.; Strikhanov, M.; Stringfellow, B.; Suaide, A. A. P.; Suarez, M. C.; Subba, N. L.; Sumbera, M.; Sun, X. M.; Sun, Y.; Sun, Z.; Surrow, B.; Svirida, D. N.; Symons, T. J. M.; Szanto de Toledo, A.; Takahashi, J.; Tang, A. H.; Tang, Z.; Tarini, L. H.; Tarnowsky, T.; Thein, D.; Thomas, J. H.; Tian, J.; Timmins, A. R.; Tlusty, D.; Tokarev, M.; Trainor, T. A.; Trentalange, S.; Tribble, R. E.; Tribedy, P.; Trzeciak, B. A.; Tsai, O. D.; Ullrich, T.; Underwood, D. G.; van Buren, G.; van Nieuwenhuizen, G.; Vanfossen, J. A., Jr.; Varma, R.; Vasconcelos, G. M. S.; Vasiliev, A. N.; Videbk, F.; Viyogi, Y. P.; Vokal, S.; Voloshin, S. A.; Wada, M.; Walker, M.; Wang, F.; Wang, G.; Wang, H.; Wang, J. S.; Wang, Q.; Wang, X. L.; Wang, Y.; Webb, G.; Webb, J. C.; Westfall, G. D.; Whitten, C., Jr.; Wieman, H.; Wissink, S. W.; Witt, R.; Witzke, W.; Wu, Y. F.; Xiao, Z.; Xie, W.

2012-02-01

327

Identified particle distributions in pp and Au+Au collisions at ? sNN = 200 GeV  

Microsoft Academic Search

Transverse mass and rapidity distributions for charged pions, charged kaons,\\u000aprotons and antiprotons are reported for sqrt{s_NN}=200 GeV pp and Au+Au\\u000acollisions at RHIC. The transverse mass distributions are rapidity independent\\u000awithin |y|<0.5, consistent with a boost-invariant system in this rapidity\\u000ainterval. Spectral shapes and relative particle yields are similar in pp and\\u000aperipheral Au+Au collisions and change smoothly to

J. Adams; C. Adler; M. M. Aggarwal; Z. Ahammed; J. Amonett; B. D. Anderson; M. Anderson; D. Arkhipkin; G. S. Averichev; S. K. Badyal; J. Balewski; O. Barannikova; L. S. Barnby; J. Baudot; S. Bekele; V. V. Belaga; R. Bellwied; J. Berger; B. I. Bezverkhny; S. Bhardwaj; P. Bhaskar; A. K. Bhati; H. Bichsel; A. Billmeier; L. C. Bland; C. O. Blyth; B. E. Bonner; M. Botje; A. Boucham; A. Brandin; A. Bravar; R. V. Cadman; X. Z. Cai; H. Caines; J. Carroll; J. Castillo; M. Castro; D. Cebra; P. Chaloupka; S. Chattopadhyay; H. F. Chen; Y. Chen; S. P. Chernenko; M. Cherney; A. Chikanian; B. Choi; W. Christie; J. P. Coffin; T. M. Cormier; J. G. Cramer; H. J. Crawford; A. A. Derevschikov; L. Didenko; T. Dietel; J. E. Draper; A. K. Dubey; V. B. Dunin; J. C. Dunlop; M. R. Dutta Majumdar; V. Eckardt; L. G. Efimov; V. Emelianov; J. Engelage; G. Eppley; B. Erazmus; M. Estienne; P. Fachini; V. Faine; J. Faivre; R. Fatemi; K. Filimonov; P. Fachini; E. Finch; Y. Fisyak; D. Flierl; K. Filimonov; J. Fu; C. A. Gagliardi; M. S. Ganti; T. D. Gutierrez; N. Gagunashvili; J. Gans; L. Gaudichet; M. Germain; V. Ghazikhanian; P. Ghosh; J. E. Gonzalez; O. Grachov; V. Grigoriev; S. Gronstal; D. Grosnick; M. Guedon; S. M. Guertin; E. Gushin; T. J. Hallman; D. Hardtke; J. W. Harris; M. Heinz; T. W. Henry; S. Heppelmann; T. Herston; B. Hippolyte; A. Hirsch; E. Hjort; G. W. Hoffmann; M. Horsley; H. Z. Huang; S. L. Huang; T. J. Humanic; G. Igo; A. Ishihara; P. Jacobs; W. W. Jacobs; M. Janik; P. G. Jones; E. G. Judd; S. Kabana; M. Kaneta; M. Kaplan; D. Keane; J. Kiryluk; A. Kisiel; J. Klay; S. R. Klein; A. Klyachko; D. D. Koetke; T. Kollegger; A. S. Konstantinov; M. Kopytine; L. Kotchenda; A. D. Kovalenko; M. Kramer; P. Kravtsov; K. Krueger; C. Kuhn; A. I. Kulikov; A. Kumar; G. J. Kunde; C. L. Kunz; R. Kh; A. A. Kuznetsov; M. A. C. Lamont; J. M. Landgraf; S. Lange; C. P. Lansdell; B. Lasiuk; F. Laue; J. Lauret; A. Lebedev; R. Lednicky; V. M. Leontiev; M. J. LeVine; C. Li; S. J. Lindenbaum; M. A. Lisa; F. Liu; L. Liu; Z. Liu; Q. J. Liu; T. Ljubicic; W. J. Llope; R. S. Longacre; M. Lopez-Noriega; T. Ludlam; D. Lynn; J. Ma; Y. G. Ma; D. Magestro; S. Mahajan; L. K. Mangotra; D. P. Mahapatra; R. Majka; R. Manweiler; S. Margetis

2004-01-01

328

Correlated production of p and p in Au + Au collisions at s N N = 200 GeV  

Microsoft Academic Search

Correlations between p and p at transverse momenta typical of enhanced baryon production in Au+Au collisions are reported. The PHENIX experiment has measured same and opposite sign baryon pairs in Au+Au collisions at sNN=200GeV. Correlated production of p and p with the trigger particle from the range 2.5pT4.0GeV\\/c and the associated particle with 1.8pT2.5GeV\\/c is observed to be nearly independent

A. Adare; S. Afanasiev; C. Aidala; N. N. Ajitanand; Y. Akiba; H. Al-Bataineh; J. Alexander; A. Al-Jamel; K. Aoki; L. Aphecetche; R. Armendariz; S. H. Aronson; J. Asai; E. T. Atomssa; R. Averbeck; T. C. Awes; B. Azmoun; V. Babintsev; G. Baksay; L. Baksay; A. Baldisseri; K. N. Barish; P. D. Barnes; B. Bassalleck; S. Bathe; S. Batsouli; V. Baublis; F. Bauer; A. Bazilevsky; S. Belikov; R. Bennett; Y. Berdnikov; A. A. Bickley; M. T. Bjorndal; J. G. Boissevain; H. Borel; K. Boyle; M. L. Brooks; D. S. Brown; D. Bucher; H. Buesching; V. Bumazhnov; G. Bunce; J. M. Burward-Hoy; S. Butsyk; S. Campbell; J.-S. Chai; B. S. Chang; J.-L. Charvet; S. Chernichenko; J. Chiba; C. Y. Chi; M. Chiu; I. J. Choi; T. Chujo; P. Chung; A. Churyn; V. Cianciolo; C. R. Cleven; Y. Cobigo; B. A. Cole; M. P. Comets; P. Constantin; M. Csand; T. Csrg?; T. Dahms; K. Das; G. David; M. B. Deaton; K. Dehmelt; H. Delagrange; A. Denisov; D. d'Enterria; A. Deshpande; E. J. Desmond; O. Dietzsch; A. Dion; M. Donadelli; J. L. Drachenberg; O. Drapier; A. Drees; A. K. Dubey; A. Durum; V. Dzhordzhadze; Y. V. Efremenko; J. Egdemir; F. Ellinghaus; W. S. Emam; A. Enokizono; H. En'yo; B. Espagnon; S. Esumi; K. O. Eyser; D. E. Fields; M. Finger; F. Fleuret; S. L. Fokin; B. Forestier; Z. Fraenkel; J. E. Frantz; A. Franz; A. D. Frawley; K. Fujiwara; Y. Fukao; S.-Y. Fung; T. Fusayasu; S. Gadrat; I. Garishvili; F. Gastineau; M. Germain; A. Glenn; H. Gong; M. Gonin; J. Gosset; Y. Goto; R. Granier de Cassagnac; N. Grau; S. V. Greene; M. Grosse Perdekamp; T. Gunji; H. . Gustafsson; T. Hachiya; A. Hadj Henni; C. Haegemann; J. S. Haggerty; M. N. Hagiwara; H. Hamagaki; R. Han; H. Harada; E. P. Hartouni; K. Haruna; M. Harvey; E. Haslum; K. Hasuko; R. Hayano; M. Heffner; T. K. Hemmick; T. Hester; J. M. Heuser; X. He; H. Hiejima; J. C. Hill; R. Hobbs; M. Hohlmann; W. Holzmann; K. Homma; B. Hong; T. Horaguchi; D. Hornback; M. G. Hur; T. Ichihara; K. Imai; M. Inaba; Y. Inoue; D. Isenhower; L. Isenhower; M. Ishihara; T. Isobe; M. Issah; A. Isupov; B. V. Jacak; J. Jia; O. Jinnouchi; B. M. Johnson; K. S. Joo; D. Jouan; F. Kajihara; S. Kametani; N. Kamihara; J. Kamin; M. Kaneta; J. H. Kang; T. Kawagishi; D. Kawall; A. V. Kazantsev; S. Kelly; A. Khanzadeev; J. Kikuchi; D. H. Kim; D. J. Kim; E. Kim; Y.-S. Kim; E. Kinney; A. Kiss; E. Kistenev; A. Kiyomichi; J. Klay; C. Klein-Boesing; L. Kochenda; V. Kochetkov; B. Komkov; M. Konno; D. Kotchetkov; A. Kozlov; A. Kravitz; P. J. Kroon; G. J. Kunde; N. Kurihara; K. Kurita; M. J. Kweon; Y. Kwon; G. S. Kyle; R. Lacey; Y.-S. Lai; J. G. Lajoie; A. Lebedev; Y. Le Bornec; S. Leckey; D. M. Lee; T. Lee; M. J. Leitch; M. A. L. Leite; B. Lenzi; H. Lim; T. Lika; A. Litvinenko; M. X. Liu; X. Li; B. Love; D. Lynch; C. F. Maguire; Y. I. Makdisi; A. Malakhov; M. D. Malik; V. I. Manko; Y. Mao; L. Maek; H. Masui; F. Matathias; M. C. McCain; M. McCumber; P. L. McGaughey; Y. Miake; P. Mike; K. Miki; T. E. Miller; A. Milov; S. Mioduszewski; G. C. Mishra; M. Mishra; J. T. Mitchell; M. Mitrovski; A. Morreale; J. M. Moss; T. V. Moukhanova; D. Mukhopadhyay; J. Murata; S. Nagamiya; Y. Nagata; J. L. Nagle; M. Naglis; I. Nakagawa; Y. Nakamiya; T. Nakamura; K. Nakano; J. Newby; M. Nguyen; B. E. Norman; A. S. Nyanin; J. Nystrand; E. O'Brien; S. X. Oda; C. A. Ogilvie; H. Ohnishi; I. D. Ojha; H. Okada; K. Okada; M. Oka; O. O. Omiwade; A. Oskarsson; I. Otterlund; M. Ouchida; K. Ozawa; R. Pak; D. Pal; A. P. T. Palounek; V. Pantuev; V. Papavassiliou; W. J. Park; S. F. Pate; H. Pei; J.-C. Peng; H. Pereira; V. Peresedov; D. Yu. Peressounko; C. Pinkenburg; R. P. Pisani; M. L. Purschke; A. K. Purwar; H. Qu; J. Rak; A. Rakotozafindrabe; I. Ravinovich; K. F. Read; S. Rembeczki; M. Reuter; K. Reygers; V. Riabov; G. Roche; A. Romana; M. Rosati; S. S. E. Rosendahl; P. Rosnet; P. Rukoyatkin; V. L. Rykov; S. S. Ryu; B. Sahlmueller; N. Saito; T. Sakaguchi; S. Sakai; H. Sakata; V. Samsonov; H. D. Sato; S. Sato; S. Sawada; J. Seele; R. Seidl; V. Semenov; R. Seto; D. Sharma; T. K. Shea; I. Shein; A. Shevel; T.-A. Shibata; K. Shigaki; M. Shimomura; T. Shohjoh; K. Shoji; A. Sickles; C. L. Silva; D. Silvermyr; C. Silvestre; K. S. Sim; C. P. Singh; V. Singh; S. Skutnik; M. Slune?ka; W. C. Smith; A. Soldatov; R. A. Soltz; W. E. Sondheim; S. P. Sorensen; I. V. Sourikova; F. Staley; P. W. Stankus; E. Stenlund; M. Stepanov; A. Ster; S. P. Stoll; T. Sugitate; C. Suire; J. P. Sullivan; J. Sziklai; T. Tabaru; S. Takagi; E. M. Takagui; A. Taketani; K. H. Tanaka; Y. Tanaka; K. Tanida; M. J. Tannenbaum; A. Taranenko; P. Tarjn; T. L. Thomas; M. Togawa; A. Toia; J. Tojo; L. Tomek; H. Torii; R. S. Towell; V.-N. Tram; I. Tserruya; Y. Tsuchimoto; S. K. Tuli; H. Tydesj; N. Tyurin; C. Vale; H. Valle; H. W. van Hecke; J. Velkovska; R. Vertesi; A. A. Vinogradov; M. Virius; V. Vrba; E. Vznuzdaev; M. Wagner; D. Walker; X. R. Wang; Y. Watanabe; J. Wessels; S. N. White

2007-01-01

329

Gold apes hydrogen. The structure and bonding in the planar B7Au2- and B7Au2 clusters.  

PubMed

We produced the B7Au2- mixed cluster and studied its electronic structure and chemical bonding using photoelectron spectroscopy and ab initio calculations. The photoelectron spectra of B7Au2- were observed to be relatively simple with vibrational resolution, in contrast to the complicated spectra observed for pure B7-, which had contributions from three isomers (Alexandrova et al. J. Phys. Chem. A 2004, 108, 3509). Theoretical calculations show that B7Au2- possesses an extremely stable planar structure, identical to that of B7H2-, demonstrating that Au mimics H in its bonding to boron, analogous to the Au-Si bonding. The ground-state structure of B7Au2- (B7H2-) can be viewed as adding two Au (H) atoms to the terminal B atoms of a higher-lying planar isomer of B7-. The bonding and stability in the planar B7Au2- (B7H2-) clusters are elucidated on the basis of the strong covalent B-Au (H) bonding and the concepts of aromaticity/antiaromaticity in these systems. PMID:16450996

Zhai, Hua-Jin; Wang, Lai-Sheng; Zubarev, Dmitry Yu; Boldyrev, Alexander I

2006-02-01

330

PtAu bimetallic heteronanostructures made by post-synthesis modification of Pt-on-Au nanoparticles  

Microsoft Academic Search

Bimetallic PtAu heteronanostructures have been synthesized from Pt-on-Au nanoparticles, which were made from platinum acetylacetonate\\u000a and gold nanoparticles. Using the Pt-on-Au nanoparticles as precursors, Ptsurface rich PtAu bimetallic heteronanostructures\\u000a can be produced through controlled thermal treatments, as confirmed by field emission high-resolution transmission electron\\u000a microscopy (HR-TEM) and elemental mapping using a high-angle annular dark-field scanning transmission electron microscope\\u000a (HAADF-STEM). Oxidation

Zhenmeng Peng; Hong Yang

2009-01-01

331

Preparation and optical absorption spectra of Au{sub core}Pt{sub shell} and Pt{sub core}Au{sub shell} colloidal nanoparticles in aqueous solution  

SciTech Connect

Bimetallic gold and platinum particles of the Pt-Au and Au-Pt core-shell type are prepared using hydrogen reduction and radiolysis techniques. The optical absorption spectra are recorded and compared to various Au-Pt particles described in the literature. Au{sub core}Pt{sub shell} particles catalyze the hydrogen reduction of silver ions to yield trimetallic particles.

Henglein, A.

2000-03-16

332

Growth of Long Range Forward-Backward Multiplicity Correlations with Centrality in Au plus Au Collisions at root s(NN)=200 GeV  

E-print Network

Forward-backward multiplicity correlation strengths have been measured with the STAR detector for Au+Au and p+p collisions at ?sNN=200??GeV. Strong short- and long-range correlations (LRC) are seen in central Au+Au collisions. ...

Walker, Matthew H.

333

Probing the electronic structure and Au-C chemical bonding in AuC2(-) and AuC2 using high-resolution photoelectron spectroscopy.  

PubMed

We report photoelectron spectroscopy (PES) and high-resolution PE imaging of AuC2(-) at a wide range of photon energies. The ground state of AuC2(-) is found to be linear (C?v, (1)?(+)) with a 8?(4)4?(4)17?(2)9?(4)18?(2) valence configuration. Detachments from all the five valence orbitals of the ground state of AuC2(-) are observed at 193 nm. High-resolution PE images are obtained in the energy range from 830 to 330 nm, revealing complicated vibronic structures from electron detachment of the 18?, 9?, and 17? orbitals. Detachment from the 18? orbital results in the (2)?(+) ground state of neutral AuC2, which, however, is bent due to strong vibronic coupling with the nearby (2)? state from detachment of a 9? electron. The (2)?(+)-(2)? vibronic and spin-orbit coupling results in complicated vibronic structures for the (2)?(+) and (2)?3/2 states with extensive bending excitations. The electron affinity of AuC2 is measured accurately to be 3.2192(7) eV with a ground state bending frequency of 195(6) cm(-1). The first excited state ((2)A') of AuC2, corresponding to the (2)?3/2 state at the linear geometry, is only 0.0021 eV above the ground state ((2)A') and has a bending frequency of 207(6) cm(-1). The (2)?1/2 state, 0.2291 eV above the ground state, is linear with little geometry change relative to the anion ground state. The detachment of the 17? orbital also results in complicated vibronic structures, suggesting again a bent state due to possible vibronic coupling with the lower (2)? state. The spectrum at 193 nm shows the presence of a minor species with less than 2% intensity relative to the ground state of AuC2(-). High-resolution data of the minor species reveal several vibrational progressions in the Au-C stretching mode, which are assigned to be from the metastable (3)?2,1,0 spin-orbit excited states of AuC2(-) to the (2)?3/2,1/2 spin-orbit states of neutral AuC2. The spin-orbit splittings of the (3)? and (2)? states are accurately measured at the linear geometry. The current study provides a wealth of electronic structure information about AuC2(-) and AuC2, which are ideal systems to investigate the strong ?-? and spin-orbit vibronic couplings. PMID:24588165

Len, Iker; Yang, Zheng; Wang, Lai-Sheng

2014-02-28

334

Mesomorphic Lamella Rolling of Au in Vacuum  

PubMed Central

Lamellar nanocondensates in partial epitaxy with larger-sized multiply twinned particles (MTPs) or alternatively in the form of multiple-walled tubes (MWTs) having nothing to do with MTP were produced by the very energetic pulse laser ablation of Au target in vacuum under specified power density and pulses. Transmission electron microscopic observations revealed (111)-motif diffraction and low-angle scattering. They correspond to layer interspacing (0.2410.192 nm) and the nearest neighbor distance (ca. 0.740.55 nm) of atom clusters within the layer, respectively, for the lamella, which shows interspacing contraction with decreasing particle size under the influence of surface stress and rolls up upon electron irradiation. The uncapped MWT has nearly concentric amorphous layers interspaced by 0.4580.335 nm depending on dislocation distribution and becomes spherical onions for surface-area reduction upon electron dosage. Analogous to graphene-derived tubular materials, the lamella-derived MWT of Au could have pentagonhexagon pair at its zig-zag junction and useful optoelectronic properties worthy of exploration. PMID:20628452

2009-01-01

335

A Bibliography of Canadian Day Care Research. Report of the Task Force on Child Care: Series 6 = Bibliographie des etudes sur la garde des enfants au Canada. Rapport du groupe d'etude sur la garde des enfants.  

ERIC Educational Resources Information Center

Part of an effort to provide detailed analyses of issues of special relevance to child care and parental leave policies and the effects of these issues on the changing Canadian family, this volume, the last in a series of six, provides a bibliography of Canadian day care research. (RH)

Pence, Alan R.

336

FiG. 2. -Aspect du spectre mis dans la rgion de focalisation. La position de l'lectrode par rapport au spectre est reprsente en vraie grandeur ct de chaque spectre.  

E-print Network

ISOTOPIQUE DU MERCURE 196 Par C. CASSIGNOL, Centre d'?tudes Nucléaires de Saclay. et R. LENNUIER, Laboratoire 70 microgrammes de mercure 196 préparé à partir du mercure naturel par séparation électromagnétique résidu sont approximativement celles du mercure naturel. La position de la composante isotopique X 196

Paris-Sud XI, Université de

337

A Cappella: A Report on the Realities, Concerns, Expectations and Barriers Experienced by Adolescent Women in Canada = A Cappella: Rapport sur les realites, preoccupations, attentes et obstacles que connaissent les adolescentes au Canada.  

ERIC Educational Resources Information Center

In the spring of 1990 a project was undertaken in Canada to document the major concerns and perceptions of adolescent women; to supplement the words of adolescent women with brief summaries of current knowledge; to use the words of adolescent women and the additional knowledge gathered to provide information to young women on issues which are of

Canadian Teachers' Federation, Ottawa (Ontario).

338

CO Oxidation mechanism on CeO2-supported Au nanoclusters  

SciTech Connect

To reveal the richer chemistry of CO oxidation by CeO2 supported Au Nanoclusters(NCs)/Nanoparticles, we design Au13 and Au12 supported on a flat and a stepped-CeO2 model (Au/CeO2) and study various kinds of CO oxidation mechanisms at the Au-CeO2 interface and the Au NC as well.

Kim H. Y.; Henkelman, G.

2013-09-08

339

Rapport d'?valuation des besoins de formation de l'Association canadienne de gastro-ent?rologie 2009  

PubMed Central

Cest en avril 2009 que lAssociation canadienne de gastroentrologie a men son plus rcent sondage annuel en ligne auprs de ses membres afin de connatre leurs besoins en matire de formation. En tout, 261 personnes ont rpondu au sondage. Comme lors des annes prcdentes, les sujets entourant les maladies inflammatoires de lintestin (MII) et plus particulirement, les traitements pour la maladie de Crohn et la colite ulcreuse (CU), de mme que les cas de MII rebelles, ont t les plus en demande pour les activits de formation venir. Parmi les autres thmes populaires, mention-nons les techniques et les traitements endoscopiques, la maladie cliaque, la prise en charge des infections gastro-intestinales (IGI) et lendoscopie en direct. Les deux types dactivits de formation les plus attrayantes ont t les confrences et les prsentations en Webdiffusion et le portail didactique de lACG offrant des liens vers des prsentations en ligne, des tests dauto-valuation et le suivi des crdits de maintien du certificat (MainCert).

Rostom, Alaa; Daniels, Sandra

2009-01-01

340

Rapport sur l'tat du patrimoine astronomique dans les observatoires franais de la fin du XIX sicle  

NASA Astrophysics Data System (ADS)

Suite au colloque sur la sauvegarde du patrimoine astronomique organis par le MAEE et la SAF, sous l'gide de l'UNESCO, qui a conduit l'adoption de la Dclaration de Paris, les directeurs d'observatoires institutionnels qui taient absents du colloque ont ressenti le besoin de discuter de ces conclusions prises en leur nom. L'initiative d'organiser une runion des directeurs des Observatoires des Sciences de l'Univers (OSU) ce sujet le 30 janvier 2012 a t prise par Franois Vernotte, directeur de l'Observatoire de Besanon. Le prsent compte-rendu de visite rsulte d'une initiative spontane d'Emmanuel Pcontal, astronome responsable du Patrimoine l'observatoire de Lyon, et d'Evelyne Damm, membre de la Commission Nationale de classement des Monuments Historiques (CNMH) et lue la communaut d'agglomration des Portes de l'Essonne o est sis l'observatoire de Camille Flammarion.

Damm, E.; Pcontal, E.

2012-12-01

341

Formation of CuxAu1? x phases by cold homogenization of Au/Cu nanocrystalline thin films  

PubMed Central

Summary It is shown, by using depth profiling with a secondary neutral mass spectrometer and structure investigations by XRD and TEM, that at low temperatures, at which the bulk diffusion is frozen, a complete homogenization can take place in the Cu/Au thin film system, which leads to formation of intermetallic phases. Different compounds can be formed depending on the initial thickness ratio. The process starts with grain boundary interdiffusion, which is followed by a formation of reaction layers at the grain boundaries that leads to the motion of the newly formed interfaces perpendicular to the grain boundary plane. Finally, the homogenization finishes when all the pure components have been consumed. The process is asymmetric: It is faster in the Au layer. In Au(25nm)/Cu(50nm) samples the final state is the ordered AuCu3 phase. Decrease of the film thicknesses, as expected, results in the acceleration of the process. It is also illustrated that changing the thickness ratio either a mixture of Cu-rich AuCu and AuCu3 phases (in Au(25nm)/Cu(25nm) sample), or a mixture of disordered Cu- as well as Au-rich solid solutions (in Au(25nm)/Cu(12nm) sample) can be produced. By using a simple model the interface velocity in both the Cu and Au layers were estimated from the linear increase of the average composition and its value is about two orders of magnitude larger in Au (ca. 10?11 m/s) than in Cu (ca. 10?13 m/s). PMID:25247132

Tynkova, Alona; Katona, Gabor L; Langer, Gabor A; Sidorenko, Sergey I; Voloshko, Svetlana M

2014-01-01

342

PScout: Analyzing the Android Permission Specification Kathy Wain Yee Au  

E-print Network

PScout: Analyzing the Android Permission Specification by Kathy Wain Yee Au A thesis submitted PScout: Analyzing the Android Permission Specification Kathy Wain Yee Au Master of Applied Science of the Android permission system in an attempt to begin answering some of the questions that have arisen about

Lie, David

343

Au(n,gamma) - the making of a new standard  

Microsoft Academic Search

The accurate knowledge of the Au(n,) reaction cross section is of great importance, since this reaction if often used as a reference in capture cross section measurements relevant to Nuclear Astrophysics, as well as for neutron flux determination in nuclear power reactors. With the aim of improving the accuracy of the neutron capture cross section on Au, extensive measurements were

C. Massimi; U. Abbondanno; G. Aerts; H. lvarez; F. Alvarez-Velarde; S. Andriamonje; J. Andrzejewski; P. Assimakopoulos; L. Audouin; G. Badurek; P. Baumann; F. Becvr; F. Belloni; E. Berthoumieux; E. Billi; F. Calvio; M. Calviani; D. Cano-Ott; R. Capote; C. Carrapio; P. Cennini; V. Chepel; N. Colonna; G. Cortes; A. Couture; J. Cox; M. Dahlfors; S. David; I. Dillman; C. Domingo-Pardo; W. Dridi; I. Duran; C. Eleftheriadis; L. Ferrant; A. Ferrari; R. Ferreira-Marques; K. Fujii; W. Furman; I. Goncalves; E. Gonzalez-Romero; F. Gramegna; C. Guerrero; F. Gunsing; B. Haas; R. Haight; M. Heil; A. Herrera-Martinez; M. Igashira; E. Jericha; F. Kppeler; Y. Kadi; D. Karadimos; D. Karamanis; M. Kerveno; P. Koehler; E. Kossionides; M. Krticka; C. Lamboudis; H. Leeb; A. Lindote; I. Lopes; M. Lozano; S. Lukic; J. Marganiec; S. Marrone; T. Martnez; P. Mastinu; A. Mengoni; P. M. Milazzo; M. Mosconi; F. Neves; H. Oberhummer; S. O'Brien; J. Pancin; C. Papachristodoulou; C. Papadopoulos; C. Paradela; N. Patronis; A. Pavlik; P. Pavlopoulos; L. Perrot; M. T. Pigni; R. Plag; A. Plompen; A. Plukis; A. Poch; J. Praena; C. Pretel; J. Quesada; T. Rauscher; R. Reifarth; C. Rubbia; G. Rudolf; P. Rullhusen; J. Salgado; C. Santos; L. Sarchiapone; I. Savvidis; C. Stephan; G. Tagliente; J. L. Tain; L. Tassan-Got; L. Tavora; R. Terlizzi; G. Vannini; P. Vaz; A. Ventura; M. C. Vicente; D. Villamarin; V. Vlachoudis; R. Vlastou; F. Voss; S. Walter; M. Wiescher; K. Wisshak

2008-01-01

344

swinburne.edu.au VET in Schools Programs 2014  

E-print Network

at school while undertaking vocational studies. VCE VET programs are vocational training approved.vcaa.vic.edu.au/vet Why choose VET training in the VCE? Students who successfully complete a VCE with a vocationalswinburne.edu.au VET in Schools Programs 2014 What is VET in the VCE? Vocational Education

Liley, David

345

swinburne.edu.au/vetis VET in Schools Programs 2014  

E-print Network

at school while undertaking vocational studies. VCE VET programs are vocational training approved.vcaa.vic.edu.au/vet Why choose VET training in the VCE? Students who successfully complete a VCE with a vocationalswinburne.edu.au/vetis VET in Schools Programs 2014 What is VET in the VCE? Vocational Education

Liley, David

346

communication.uts.edu.au think.change.do  

E-print Network

contactUS Tel: 1300 ASK UTS (1300 275 887) Online inquiry: ask.uts.edu.au communication.uts.edu.au #12 opportunities for our best graduates. From corporate, government and community bodies to small and medium, businesses and consultancies around the world. They work in government and non-government organisations

University of Technology, Sydney

347

Microstructural evolution of eutectic Au-Sn solder joints  

SciTech Connect

Current trends toward miniaturization and the use of lead(Pb)-free solder in electronic packaging present new problems in the reliability of solder joints. This study was performed in order to understand the microstructure and microstructural evolution of small volumes of nominally eutectic Au-Sn solder joints (80Au-20Sn by weight), which gives insight into properties and reliability.

Song, Ho Geon

2002-05-31

348

Don Quichotte au fminin : Charlotte Lennox, The Female Marianne CAMUS  

E-print Network

comique est au frais des personnages masculins qui l'entourent plutôt qu'au sien et le fait qu everyone should aspire to. The Female Quixote can be seen in fact as constructing an ideal of femininity

Paris-Sud XI, Université de

349

Deposition of Au and Ag nanoparticles on PEDOT.  

PubMed

The deposition of Au and Ag, locally and from bulk solution, on poly(3,4-ethylenedioxythiophene) (PEDOT) was studied. Specifically, PEDOT was electrochemically polymerized onto a glassy carbon (GC) electrode and used for bulk deposition of Au and Ag from their respective ions dissolved in the solution as well as for the local deposition of these metals using scanning electrochemical microscopy (SECM). These two sets of experiments were utilized to investigate the difference between Au and Ag electrochemical deposition on PEDOT. In particular, SECM experiments, which were conducted by the controlled anodic dissolution of Au and Ag microelectrodes close to GC/PEDOT, probed the effect of different PEDOT oxidation states on local deposition. The current-time transients recorded during the deposition, combined with scanning electron microscopy and EDX analysis provided insight into the reduction processes. AuCl(4)(-) and Ag(+) ions were electrochemically reduced at a potential equal to and more negative than the ions redox potentials (0.4 and 0.2 V, respectively) and more positive than -0.7 V, where the PEDOT starts transforming into the reduced, i.e. insulating, state. We found that the electroreduction of Ag(+) ions was diffusion-controlled and the PEDOT film served as a simple conductor. On the other hand, the reduction of AuCl(4)(-) ions was enhanced on GC/PEDOT as compared with bare GC, indicating that PEDOT catalyzes the reduction of AuCl(4)(-) to Au. PMID:21993698

Danieli, Tamar; Colleran, John; Mandler, Daniel

2011-12-01

350

Sputtering of Au induced by single Xe ion impacts  

SciTech Connect

Sputtering of Au thin films has been determined for Xe ions with energies between 50 and 600 keV. In-situ transmission electron microscopy was used to observe sputtered Au during deposition on a carbon foil near the specimen. Total reflection and transmission sputtering yields for a 62 nm thick Au thin film were determined by ex-situ measurement of the total amount of Au on the carbon foils. In situ observations show that individual Xe ions eject Au nanoparticles as large as 7 nm in diameter with an average diameter of approximately 3 nm. Particle emission correlates with crater formation due to single ion impacts. Nanoparticle emission contributes significantly to the total sputtering yield for Xe ions in this energy range in either reflection or transmission geometry.

Birtcher, R. C.; Donnelly, S. E.

1999-12-06

351

Charged hadron transverse momentum spectra in Au+Au and d+Au collisions at 200 GeV per nucleon pair  

E-print Network

The Relativistic Heavy Ion Collider (RHIC) collides Au ions at a center of mass energy of 200 GeV per nucleon pair, which produces the most energetic collisions yet seen in the laboratory. RHIC has also collided proton ...

Kane, Jay Lawrence

2005-01-01

352

Identified particle transverse momentum distributions from AU + AU collisions at 62.4 GeV per nucleon pair  

E-print Network

Transverse momentum (PT) distributions for pions, kaons, protons and antiprotons have been measured near mid-rapidity for Au+Au collisions at sNN = 62.4 GeV using the PHOBOS detector at the Relativistic Heavy-Ion Collider ...

Henderson, Conor, 1977-

2005-01-01

353

Third harmonic flow of charged particles in Au + Au collisions at ?s[subscript NN]=200GeV  

E-print Network

We report measurements of the third harmonic coefficient of the azimuthal anisotropy, v[subscript 3], known as triangular flow. The analysis is for charged particles in Au+Au collisions at ?s[subscript NN]=200 GeV, based ...

Betancourt, M. J.

354

Beam-Energy Dependence of the Directed Flow of Protons, Antiprotons, and Pions in Au+Au Collisions  

E-print Network

Rapidity-odd directed flow (v[subscript 1]) measurements for charged pions, protons, and antiprotons near midrapidity (y = 0) are reported in ?s[subscript NN] = 7.7, 11.5, 19.6, 27, 39, 62.4, and 200 GeV Au+Au collisions ...

Stevens, Justin

355

Neutral pion production in Au plus Au collisions at root s(NN)=200 GeV  

E-print Network

The results of midrapidity (0Au+Au collisions, measured by the STAR experiment, are presented. ...

Walker, M.

356

Directed Flow of Identified Particles in Au+Au Collisions at ?SNN=200??GeV at RHIC  

E-print Network

STARs measurements of directed flow (v[subscript 1]) around midrapidity for ?[superscript ], K[superscript ], K[subscript S][superscript 0], p, and p? in Au+Au collisions at ?s[subscript NN]=200??GeV are presented. A ...

Balewski, Jan T.

357

Neutral pion production in Au plus Au collisions at root s(NN)=200 GeV  

E-print Network

The results of midrapidity (0 < y < 0.8) neutral pion spectra over an extended transverse momentum range (1 < p(T) < 12 GeV/c) in root s(NN) = 200 GeV Au + Au collisions, measured by the STAR experiment, are presented. The neutral pions...

Abelev, B. I.; Aggarwal, M. M.; Ahammed, Z.; Alakhverdyants, A. V.; Anderson, B. D.; Arkhipkin, D.; Averichev, G. S.; Balewski, J.; Barannikova, O.; Barnby, L. S.; Baudot, J.; Baumgart, S.; Beavis, D. R.; Bellwied, R.; Benedosso, F.; Betancourt, M. J.; Betts, R. R.; Bhasin, A.; Bhati, A. K.; Bichsel, H.; Bielcik, J.; Bielcikova, J.; Biritz, B.; Bland, L. C.; Bnzarov, I.; Bombara, M.; Bonner, B. E.; Bouchet, J.; Braidot, E.; Brandin, A. V.; Bruna, E.; Bueltmann, S.; Burton, T. P.; Bystersky, M.; Cai, X. Z.; Caines, H.; de la Barca Sanchez, M. Calderon; Catu, O.; Cebra, D.; Cendejas, R.; Cervantes, M. C.; Chajecki, Z.; Chaloupka, P.; Chattopadhyay, S.; Chen, H. F.; Chen, J. H.; Chen, J. Y.; Cheng, J.; Cherney, M.; Chikanian, A.; Choi, K. E.; Christie, W.; Clarke, R. F.; Codrington, M. J. M.; Corliss, R.; Cormier, T. M.; Cosentino, M. R.; Cramer, J. G.; Crawford, H. J.; Das, D.; Dash, S.; Daugherity, M.; De Silva, L. C.; Dedovich, T. G.; DePhillips, M.; Derevschikov, A. A.; De Souza, R. Derradi; Didenko, L.; Djawotho, P.; Dogra, S. M.; Dong, X.; Drachenberg, J. L.; Draper, J. E.; Dunlop, J. C.; Mazumdar, M. R. Dutta; Efimov, L. G.; Elhalhuli, E.; Elnimr, M.; Engelage, J.; Eppley, G.; Erazmus, B.; Estienne, M.; Eun, L.; Fachini, P.; Fatemi, R.; Fedorisin, J.; Feng, A.; Filip, P.; Finch, E.; Fine, V.; Fisyak, Y.; Gagliardi, Carl A.; Gaillard, L.; Gangadharan, D. R.; Ganti, M. S.; Garcia-Solis, E. J.; Geromitsos, A.; Geurts, F.; Ghazikhanian, V.; Ghosh, P.; Gorbunov, Y. N.; Gordon, A.; Grebenyuk, O.; Grosnick, D.; Grube, B.; Guertin, S. M.; Guimaraes, K. S. F. F.; Gupta, A.; Gupta, N.; Guryn, W.; Haag, B.; Hallman, T. J.; Hamed, A.; Harris, J. W.; He, W.; Heinz, M.; Heppelmann, S.; Hippolyte, B.; Hirsch, A.; Hjort, E.; Hoffman, A. M.; Hoffmann, G. W.; Hofman, D. J.; Hollis, R. S.; Huang, H. Z.; Humanic, T. J.; Huo, L.; Igo, G.; Iordanova, A.; Jacobs, P.; Jacobs, W. W.; Jakl, P.; Jena, C.; Jin, F.; Jones, C. L.; Jones, P. G.; Joseph, J.; Judd, E. G.; Kabana, S.; Kajimoto, K.; Kang, K.; Kapitan, J.; Kauder, K.; Keane, D.; Kechechyan, A.; Kettler, D.; Khodyrev, V. Yu; Kikola, D. P.; Kiryluk, J.; Kisiel, A.; Klein, S. R.; Knospe, A. G.; Kocoloski, A.; Koetke, D. D.; Konzer, J.; Kopytine, M.; Koralt, I.; Korsch, W.; Kotchenda, L.; Kouchpil, V.; Kravtsov, P.; Kravtsov, V. I.; Krueger, K.; Krus, M.; Kuhn, C.; Kumar, L.; Kurnadi, P.; Lamont, M. A. C.; Landgraf, J. M.; LaPointe, S.; Lauret, J.; Lebedev, A.; Lednicky, R.; Lee, C. -H; Lee, J. H.; Leight, W.; LeVine, M. J.; Li, C.; Li, N.; Li, Y.; Lin, G.; Lindenbaum, S. J.; Lisa, M. A.; Liu, F.; Liu, H.; Liu, J.; Liu, L.; Ljubicic, T.; Llope, W. J.; Longacre, R. S.; Love, W. A.; Lu, Y.; Ludlam, T.; Ma, G. L.; Ma, Y. G.; Mahapatra, D. P.; Majka, R.; Mall, O. I.; Mangotra, L. K.; Manweiler, R.; Margetis, S.; Markert, C.; Masui, H.; Matis, H. S.; Matulenko, Yu A.; McDonald, D.; McShane, T. S.; Meschanin, A.; Milner, R.; Minaev, N. G.; Mioduszewski, Saskia; Mischke, A.; Mohanty, B.; Morozov, D. A.; Munhoz, M. G.; Nandi, B. K.; Nattrass, C.; Nayak, T. K.; Nelson, J. M.; Netrakanti, P. K.; Ng, M. J.; Nogach, L. V.; Nurushev, S. B.; Odyniec, G.; Ogawa, A.; Okada, H.; Okorokov, V.; Olson, D.; Pachr, M.; Page, B. S.; Pal, S. K.; Pandit, Y.; Panebratsev, Y.; Pawlak, T.; Peitzmann, T.; Perevoztchikov, V.; Perkins, C.; Peryt, W.; Phatak, S. C.; Pile, P.; Planinic, M.; Ploskon, M. A.; Pluta, J.; Plyku, D.; Poljak, N.; Poskanzer, A. M.; Potukuchi, B. V. K. S.; Prindle, D.; Pruneau, C.; Pruthi, N. K.; Pujahari, P. R.; Putschke, J.; Raniwala, R.; Raniwala, S.; Ray, R. L.; Redwine, R.; Reed, R.; Ridiger, A.; Ritter, H. G.; Roberts, J. B.; Rogachevskiy, O. V.; Romero, J. L.; Rose, A.; Roy, C.; Ruan, L.; Russcher, M. J.; Sahoo, R.; Sakai, S.; Sakrejda, I.; Sakuma, T.; Salur, S.; Sandweiss, J.; Sarsour, M.; Schambach, J.; Scharenberg, R. P.; Schmitz, N.; Seger, J.; Selyuzhenkov, I.; Seyboth, P.; Shabetai, A.; Shahaliev, E.; Shao, M.; Sharma, M.; Shi, S. S.; Shi, X. -H; Sichtermann, E. P.; Simon, F.; Singaraju, R. N.; Skoby, M. J.; Smirnov, N.; Sorensen, P.; Sowinski, J.; Spinka, H. M.; Srivastava, B.; Stanislaus, T. D. S.; Staszak, D.; Strikhanov, M.; Stringfellow, B.; Suaide, A. A. P.; Suarez, M. C.; Subba, N. L.; Sumbera, M.; Sun, X. M.; Sun, Y.; Sun, Z.; Surrow, B.; Symons, T. J. M.; De Toledo, A. Szanto; Takahashi, J.; Tang, A. H.; Tang, Z.; Tarini, L. H.; Tarnowsky, T.; Thein, D.; Thomas, J. H.; Tian, J.; Timmins, A. R.; Timoshenko, S.; Tlusty, D.; Tokarev, M.; Trainor, T. A.; Tram, V. N.; Trentalange, S.; Tribble, Robert E.; Tsai, O. D.; Ulery, J.; Ullrich, T.; Underwood, D. G.; Van Buren, G.; van Nieuwenhuizen, G.; Vanfossen, J. A., Jr.; Varma, R.; Vasconcelos, G. M. S.; Vasiliev, A. N.; Videbaek, F.; Vigdor, S. E.; Viyogi, Y. P.; Vokal, S.; Voloshin, S. A.

2009-01-01

358

The Observable of Lambda Polarity Caused by Source Global Angular Momentum Localizing in Peripheral Au-Au Collision at RHIC  

E-print Network

An observable to measure the polarity of lambda that caused by source global angular momentum in peripheral AU-AU collision at RHIC is proposed.This observable's capacity of measurement is tested by Monte Carlo method.And the main factors that influence the observable are also researched.This observable will give an effective proof of the formation of deconfined matter.

X. Sun; Z. Yang

2005-07-29

359

Charged particle multiplicity fluctuations in Au+Au collisions at \\sqrt{s_{NN}} = 200\\, {\\rm GeV}  

NASA Astrophysics Data System (ADS)

This paper presents the first PHOBOS results on charged particle multiplicity fluctuations measured for Au+Au collisions at the highest RHIC energy within a wide pseudorapidity range of |eegr| < 3. The dependence on collision geometry is removed in the analysis by using the normalized difference between the number of particles in separate eegr bins. We compare our data to HIJING model predictions.

Wozniak, Krzysztof; PHOBOS Collaboration; Back, B. B.; Baker, M. D.; Ballintijn, M.; Barton, D. S.; Betts, R. R.; Bickley, A. A.; Bindel, R.; Budzanowski, A.; Busza, W.; Carroll, A.; Chai, Z.; Decowski, M. P.; Garca, E.; George, N.; Gulbrandsen, K.; Gushue, S.; Halliwell, C.; Hamblen, J.; Heintzelman, G. A.; Henderson, C.; Hofman, D. J.; Hollis, R. S.; Holynski, R.; Holzman, B.; Iordanova, A.; Johnson, E.; Kane, J. L.; Katzy, J.; Khan, N.; Kucewicz, W.; Kulinich, P.; Kuo, C. M.; Lin, W. T.; Manly, S.; McLeod, D.; Mignerey, A. C.; Nouicer, R.; Olszewski, A.; Pak, R.; Park, I. C.; Pernegger, H.; Reed, C.; Remsberg, L. P.; Reuter, M.; Roland, C.; Roland, G.; Rosenberg, L.; Sagerer, J.; Sarin, P.; Sawicki, P.; Skulski, W.; Steinberg, P.; Stephans, G. S. F.; Sukhanov, A.; Tang, J. L.; Trzupek, A.; Vale, C.; van Nieuwenhuizen, G. J.; Verdier, R.; Wolfs, F. L. H.; Wosiek, B.; Wuosmaa, A. H.; Wyslouch, B.

2004-08-01

360

Indirect heating of Pt by non-equilibrium electrons in Au in a nanoscale Pt/Au bilayer  

E-print Network

Indirect heating of Pt by non-equilibrium electrons in Au in a nanoscale Pt/Au bilayer Gyung multilayer on picosecond time-scales is controlled by the electronic thermal conductivity (e), the electronic interfacial thermal conductance (Gee), and electron-phonon coupling constant (g). We analyse heat transfer

Cahill, David G.

361

Electronic and resonance Raman spectra of [Au2(CS3)2]2-. Spectroscopic properties of a "short" Au(I)-Au(I) bond.  

PubMed

The anion [Au2(CS3)2]2- has an unusually short Au-Au distance (2.80 A) for a binuclear Au(I) complex. We report detailed Raman studies of the nBu4N+ salt of this complex, including FT-Raman of the solid and UV/vis resonance Raman of dimethyl sulfoxide solutions. All five totally symmetric vibrations of the anion have been located and assigned. A band at delta nu = 125 cm-1 is assigned to nu (Au2). The visible-region electronic absorption bands (384 (epsilon 30,680) and 472 nm (epsilon 610 M-1 cm-1)) are attributable to CS3(2-) localized transitions, as confirmed by the dominance of nu sym(C-Sexo) (delta nu = 951 cm-1) in RR spectra measured in this region. An absorption band at 314 nm (22,250 M-1 cm-1) is assigned as the metal-metal 1(d sigma*-->p sigma) transition, largely because nu sym(C-Sexo) is not strongly enhanced in RR involving this band. Observation of the expected strong resonance enhancement of nu (Au2) was precluded as a result of masking by intense solvent Rayleigh scattering in the UV. PMID:11196834

Cheng, E C; Leung, K H; Miskowski, V M; Yam, V W; Phillips, D L

362

On the electronic structure and chemical bonding of titanium tetraauride: TiAu4 and TiAu4-  

NASA Astrophysics Data System (ADS)

The structural and electronic properties of titanium tetraauride are investigated using photoelectron spectroscopy and density functional calculations. The photoelectron spectra of TiAu4- show a relatively simple spectral pattern with a large energy gap, suggesting that neutral TiAu4 has a highly stable electronic configuration. Theoretical calculations have found a slightly distorted tetrahedral structure for TiAu4-, whereas the closed shell neutral TiAu4 has perfect Td symmetry. Chemical bonding analyses suggest that the Ausbnd Ti bonds have multiple bond characters due to the Au 5d to Ti 3d back donation and that chemical bonding in the tetraauride is similar to that in heavier titanium tetrahalides.

Erdogdu, Yusuf; Jian, Tian; Lopez, Gary V.; Li, Wei-Li; Wang, Lai-Sheng

2014-08-01

363

Heavy flavor electron - hadron correlations in p+p and Au+Au collisions at PHENIX  

NASA Astrophysics Data System (ADS)

A surprising discovery at RHIC is the large suppression of heavy quarks in heavy ion collisions. Perturbative QCD predicted much less suppression for heavy mesons than 0? mesons, however the measured suppression of charm and bottom quarks traversing Quark-Gluon Plasma from measurements is significantly larger than expected. Two particle correlations are used to study the propagation of hard partons traversing the hot matter produced by heavy ion collisions. Azimuthal correlations between electrons from decay of D and B mesons and charged hadrons are important measurements, for they provide additional information on how heavy quarks interact with the hot medium when compared with correlations of light hadrons. As a reference for heavy ion measurements, heavy flavor electron - hadron correlations are also measured for p+p collisions. We will present recent results of heavy flavor electron - hadron correlations for Au+Au and p+p collisions in the PHENIX experiment. )

Sun, Jiayin

2010-02-01

364

A terrestrial planet in a ~1-AU orbit around one member of a ?15-AU binary  

NASA Astrophysics Data System (ADS)

Using gravitational microlensing, we detected a cold terrestrial planet orbiting one member of a binary star system. The planet has low mass (twice Earths) and lies projected at ~0.8 astronomical units (AU) from its host star, about the distance between Earth and the Sun. However, the planets temperature is much lower, <60 Kelvin, because the host star is only 0.10 to 0.15 solar masses and therefore more than 400 times less luminous than the Sun. The host itself orbits a slightly more massive companion with projected separation of 10 to 15 AU. This detection is consistent with such systems being very common. Straightforward modification of current microlensing search strategies could increase sensitivity to planets in binary systems. With more detections, such binary-star planetary systems could constrain models of planet formation and evolution.

Gould, A.; Udalski, A.; Shin, I.-G.; Porritt, I.; Skowron, J.; Han, C.; Yee, J. C.; Koz?owski, S.; Choi, J.-Y.; Poleski, R.; Wyrzykowski, ?.; Ulaczyk, K.; Pietrukowicz, P.; Mrz, P.; Szyma?ski, M. K.; Kubiak, M.; Soszy?ski, I.; Pietrzy?ski, G.; Gaudi, B. S.; Christie, G. W.; Drummond, J.; McCormick, J.; Natusch, T.; Ngan, H.; Tan, T.-G.; Albrow, M.; DePoy, D. L.; Hwang, K.-H.; Jung, Y. K.; Lee, C.-U.; Park, H.; Pogge, R. W.; Abe, F.; Bennett, D. P.; Bond, I. A.; Botzler, C. S.; Freeman, M.; Fukui, A.; Fukunaga, D.; Itow, Y.; Koshimoto, N.; Larsen, P.; Ling, C. H.; Masuda, K.; Matsubara, Y.; Muraki, Y.; Namba, S.; Ohnishi, K.; Philpott, L.; Rattenbury, N. J.; Saito, To.; Sullivan, D. J.; Sumi, T.; Suzuki, D.; Tristram, P. J.; Tsurumi, N.; Wada, K.; Yamai, N.; Yock, P. C. M.; Yonehara, A.; Shvartzvald, Y.; Maoz, D.; Kaspi, S.; Friedmann, M.

2014-07-01

365

A Terrestrial Planet in a ~1 AU Orbit Around One Member of a ~15 AU Binary  

E-print Network

We detect a cold, terrestrial planet in a binary-star system using gravitational microlensing. The planet has low mass (2 Earth masses) and lies projected at $a_{\\perp,ph}$ ~ 0.8 astronomical units (AU) from its host star, similar to the Earth-Sun distance. However, the planet temperature is much lower, TSun. The host is itself orbiting a slightly more massive companion with projected separation $a_{\\perp,ch}=$10--15 AU. Straightforward modification of current microlensing search strategies could increase their sensitivity to planets in binary systems. With more detections, such binary-star/planetary systems could place constraints on models of planet formation and evolution. This detection is consistent with such systems being very common.

Gould, A; Shin, I -G; Porritt, I; Skowron, J; Han, C; Yee, J C; Koz?owski, S; Choi, J -Y; Poleski, R; Wyrzykowski, ?; Ulaczyk, K; Pietrukowicz, P; Mrz, P; Szyma?ski, M K; Kubiak, M; Soszy?ski, I; Pietrzy?ski, G; Gaudi, B S; Christie, G W; Drummond, J; McCormick, J; Natusch, T; Ngan, H; Tan, T -G; Albrow, M; DePoy, D L; Hwang, K -H; Jung, Y K; Lee, C -U; Park, H; Pogge, R W; Abe, F; Bennett, D P; Bond, I A; Botzler, C S; Freeman, M; Fukui, A; Fukunaga, D; Itow, Y; Koshimoto, N; Larsen, P; Ling, C H; Masuda, K; Matsubara, Y; Muraki, Y; Namba, S; Ohnishi, K; Philpott, L; Rattenbury, N J; Saito, To; Sullivan, D J; Sumi, T; Suzuki, D; Tristram, P J; Tsurumi, N; Wada, K; Yamai, N; Yock, P C M; Yonehara, A; Shvartzvald, Y; Maoz, D; Kaspi, S; Friedmann, M

2014-01-01

366

Au-adatoms in Self-assembly of Benzenethiol on the Au(111) Surface  

SciTech Connect

Self-assembly of benzenethiol at low coverage on Au(111) was studied using low-temperature scanning tunneling microscopy. Phenylthiolate species (PhS), formed by thermal dehydrogenation of the parent PhSH molecule, was found to self-assemble into surface- bonded complexes with gold adatoms. Each such complex involves two PhS species and one gold adatom. The PhS-species form either cis- or trans-geometry relative to each other. At a higher coverage the complexes coalesce, most likely due to the formation of weak C- H..S hydrogen bonds facilitated by the spatial arrangement of the PhS-groups. Our findings thus establish that the self-assembly of arenethiols on Au(111) surface is driven by gold adatom chemistry, which has recently been found to be the key ingredient in the self- assembly of alkanethiols on gold.

Maksymovych, Petro [ORNL; YatesJr, John T [University of Virginia, Charlottesville

2008-01-01

367

Conical flow due to partonic jets in central Au+Au collisions  

E-print Network

In jet quenching, a hard QCD parton, before fragmenting into a jet of hadrons, deposits a fraction of its energy in the medium, leading to suppressed production of high-$p_T$ hadrons. The process can generate shock waves. We study the distortion of Mach shock waves due to jet quenching in central Au+Au collisions and its effect on particle production. Finite fluid velocity and inhomogeneity of the medium can distort the Mach shock front significantly such that the inside shock front disappear and the outside shock front is opened up. We also show that the STAR data on azimuthal distribution of background subtracted secondaries, associated with high $p_T$ trigger, are reasonably well explained by the excess pions produced due to partonic energy loss.

A. K. Chaudhuri

2006-10-30

368

Conical flow due to partonic jets in central Au+Au collisions  

SciTech Connect

In jet quenching, a hard QCD parton, before fragmenting into a jet of hadrons, deposits a fraction of its energy in the medium, leading to suppressed production of high-p{sub T} hadrons. The process can generate shock waves. We study the distortion of Mach shock waves due to jet quenching in central Au+Au collisions and its effect on particle production. Finite fluid velocity and inhomogeneity of the medium can distort the Mach shock front significantly such that the inside shock front disappear and the outside shock front is opened up. We also show that the STAR data on azimuthal distribution of background subtracted secondaries, associated with high p{sub T} trigger, are reasonably well explained by the excess pions produced due to partonic energy loss.

Chaudhuri, A. K. [Variable Energy Cyclotron Centre, 1-AF, Bidhan Nagar, Kolkata-700064 (India)

2007-05-15

369

First principles calculations of the optical and plasmonic response of Au alloys and intermetallic compounds  

NASA Astrophysics Data System (ADS)

Pure Au is widely used in plasmonic applications even though its use is compromised by significant losses due to damping. There are some elements that are less lossy than Au (e.g. Ag or Al) but they will normally oxidize or corrode under ambient conditions. Here we examine whether alloying Au with a second element would be beneficial for plasmonic applications. In order to evaluate potential alternatives to pure Au, the density of states (DOS), dielectric function and plasmon quality factor have been calculated for alloys and compounds of Au with Al, Cd, Mg, Pd, Pt, Sn, Ti, Zn and Zr. Substitutional alloying of Au with Al, Cd, Mg and Zn was found to slightly improve the plasmonic response. Of the large number of intermetallic compounds studied, only AuAl2, Au3Cd, AuMg, AuCd and AuZn were found to be suitable for plasmonic applications.

Keast, V. J.; Barnett, R. L.; Cortie, M. B.

2014-07-01

370

The 198Au beta-half-life in the metal Au revisited  

E-print Network

The half-life of the beta-decay of 198Au has been measured for room temperature and 12 K. The resulting values of T(RT) = 2.684 +- 0.004 d and T(12 K) = 2.687 +- 0.005 d agree well within statistical uncertainties. An evidence for a temperature dependence of the half-life was not observed.

K. Fortak; R. Kunz; L. Gialanella; H. -W. Becker; J. Meijer; F. Strieder

2010-09-10

371

Experimental Observation and Confirmation of Icosahedral W@Au12 and Mo@Au12 Molecules  

SciTech Connect

The recently predicted W@Au12 cluster has been observed and probed experimentally using anion photoelectron spectroscopy. It is shown that this unique molecule and its Mo congener indeed possess an icosahedral structure and a large HOMO-LUMO gap. Relativistic density functional theory is used to calculate their geometries, energetics, and energy spectra. The simulated density-of-states spectra are in good agreement with the photoelectron spectra, confirming the icosahedral structure of these complexes.

Li, Xi; Boggavarapu, Kiran; Li, Jun; Zhai, Hua Jin; Wang, Lai-Sheng

2002-12-16

372

Multiplicity of Pre-Main-Sequence Stars at AU and Sub-AU Separations  

NASA Astrophysics Data System (ADS)

To understand star formation, one must understand the formation of multiple systems. The statistical properties of pre-main-sequence binary and higher-order systems are direct indicators of the mechanisms and initial conditions influential in their formation. We advocate the use of long-baseline optical interferometry to determine the multiplicity fraction of pre-main-sequence stars on AU scales to distinguish between competing formation models. We present the feasibility, statistical considerations, and scientific value of an interferometric multiplicity survey.

Gordon, J. A.; Buscher, D. F.

2014-09-01

373

Functionalization of sol gel bioactive glasses carrying Au nanoparticles: selective Au affinity for amino and thiol ligand groups.  

PubMed

It is demonstrated here that bioactive glasses containing Au nanoparticles (AuNPs) can be selectively functionalized with small molecules carrying either amino or thiol groups by simply varying the temperature and pH of the functionalization batch. The results evidence the following. (i) At room temperature (RT), no functionalization of Au-free glass occurs, whereas in the case of glasses containing AuNPs, stable linkages form only with amino groups, as in this condition Au does not bind with either thiol or hydroxyl groups. The RT functionalization with cysteine and cystine confirms the preferential functionalization through the amino groups, while the -SH groups are oxidized to S-S bridges. (ii) The functionalization with cysteine and cystine, compared at pH = 5, 9, and 12, is shown not to take place at pH = 5 and to be hindered by the glass matrix dissolution at pH = 12 (with consequent release of AuNPs), while the best results are obtained at pH = 9. (iii) For the effect of reaction temperature, at 4 C it is possible to obtain a strong Au-S interaction, whereas at RT, a weak Au-N linkage is formed. These results should allow production, in a selective way, of different bonds exhibiting different strengths and, consequently, different release times in solution, with a wide range of possible applications (for instance, weak Au-N bonds in the case of drug delivery, strong Au-S bonds in protein immobilization). PMID:21090664

Aina, Valentina; Marchis, Tatiana; Laurenti, Enzo; Diana, Eliano; Lusvardi, Gigliola; Malavasi, Gianluca; Menabue, Ledi; Cerrato, Giuseppina; Morterra, Claudio

2010-12-21

374

The AuScope Geodetic VLBI Array  

E-print Network

The AuScope geodetic Very Long Baseline Interferometry array consists of three new 12 m radio telescopes and a correlation facility in Australia. The telescopes at Hobart (Tasmania), Katherine (Northern Territory) and Yarragadee (Western Australia) are co-located with other space geodetic techniques including Global Navigation Satellite Systems (GNSS) and gravity infrastructure, and in the case of Yarragadee, Satellite Laser Ranging (SLR) and Doppler Orbitography and Radiopositioning Integrated by Satellite (DORIS) facilities. The correlation facility is based in Perth (Western Australia). This new facility will make significant contributions to improving the densification of the International Celestial Reference Frame in the Southern Hemisphere, and subsequently enhance the International Terrestrial Reference Frame through the ability to detect and mitigate systematic error. This, combined with the simultaneous densification of the GNSS network across Australia will enable the improved measurement of intrapl...

Lovell, J E J; Reid, P B; McCulloch, P M; Baynes, B E; Dickey, J M; Shabala, S S; Watson, C S; Titov, O; Ruddick, R; Twilley, R; Reynolds, C; Tingay, S J; Shield, P; Adada, R; Ellingsen, S P; Morgan, J S; Bignall, H E

2013-01-01

375

The AuScope VLBI Array  

NASA Astrophysics Data System (ADS)

The AuScope VLBI array, consisting of three new 12-m radio telescopes in Australia dedicated to geodesy, has now commenced operations. The telescopes at Hobart (Tasmania), Katherine (Northern Territory), and Yarragadee (Western Australia) are co-located with other space geodetic techniques including GNSS, gravity, and SLR. This new facility is making significant contributions to improving the densification of the International Celestial Reference Frame in the southern hemisphere, to improving the International Terrestrial Reference Frame in the region, and in measurement of intraplate deformation of the Australian tectonic plate. We present an overview of the current status of the VLBI facility and its current performance. We also highlight some of the geodetic research projects currently underway that are taking advantage of this new facility.

Lovell, J.; McCallum, J.; Shabala, S.; Dickey, J.; Watson, C.; Titov, O.; Tingay, S.; Reynolds, C.; Morgan, J.

2012-12-01

376

Neutral pion production in Au+Au collisions at sNN=200 GeV  

NASA Astrophysics Data System (ADS)

The results of midrapidity (0Au collisions, measured by the STAR experiment, are presented. The neutral pions are reconstructed from photons measured either by the STAR Barrel Electro-Magnetic Calorimeter or by the Time Projection Chamber via tracking of conversion electron-positron pairs. Our measurements are compared to previously published ? and ?0 results. The nuclear modification factors RCP and RAA of ?0 are also presented as a function of pT. In the most central Au+Au collisions, the binary collision scaled ?0 yield at high pT is suppressed by a factor of about 5 compared to the expectation from the yield of p+p collisions. Such a large suppression is in agreement with previous observations for light quark mesons and is consistent with the scenario that partons suffer considerable energy loss in the dense medium formed in central nucleus-nucleus collisions at the Relativistic Heavy Ion Collider.

Abelev, B. I.; Aggarwal, M. M.; Ahammed, Z.; Alakhverdyants, A. V.; Anderson, B. D.; Arkhipkin, D.; Averichev, G. S.; Balewski, J.; Barannikova, O.; Barnby, L. S.; Baudot, J.; Baumgart, S.; Beavis, D. R.; Bellwied, R.; Benedosso, F.; Betancourt, M. J.; Betts, R. R.; Bhasin, A.; Bhati, A. K.; Bichsel, H.; Bielcik, J.; Bielcikova, J.; Biritz, B.; Bland, L. C.; Bnzarov, I.; Bombara, M.; Bonner, B. E.; Bouchet, J.; Braidot, E.; Brandin, A. V.; Bruna, E.; Bueltmann, S.; Burton, T. P.; Bystersky, M.; Cai, X. Z.; Caines, H.; Snchez, M. Caldern De La Barca; Catu, O.; Cebra, D.; Cendejas, R.; Cervantes, M. C.; Chajecki, Z.; Chaloupka, P.; Chattopadhyay, S.; Chen, H. F.; Chen, J. H.; Chen, J. Y.; Cheng, J.; Cherney, M.; Chikanian, A.; Choi, K. E.; Christie, W.; Clarke, R. F.; Codrington, M. J. M.; Corliss, R.; Cormier, T. M.; Cosentino, M. R.; Cramer, J. G.; Crawford, H. J.; Das, D.; Dash, S.; Daugherity, M.; Silva, L. C. De; Dedovich, T. G.; Dephillips, M.; Derevschikov, A. A.; de Souza, R. Derradi; Didenko, L.; Djawotho, P.; Dogra, S. M.; Dong, X.; Drachenberg, J. L.; Draper, J. E.; Dunlop, J. C.; Mazumdar, M. R. Dutta; Efimov, L. G.; Elhalhuli, E.; Elnimr, M.; Engelage, J.; Eppley, G.; Erazmus, B.; Estienne, M.; Eun, L.; Fachini, P.; Fatemi, R.; Fedorisin, J.; Feng, A.; Filip, P.; Finch, E.; Fine, V.; Fisyak, Y.; Gagliardi, C. A.; Gaillard, L.; Gangadharan, D. R.; Ganti, M. S.; Garcia-Solis, E. J.; Geromitsos, A.; Geurts, F.; Ghazikhanian, V.; Ghosh, P.; Gorbunov, Y. N.; Gordon, A.; Grebenyuk, O.; Grosnick, D.; Grube, B.; Guertin, S. M.; Guimaraes, K. S. F. F.; Gupta, A.; Gupta, N.; Guryn, W.; Haag, B.; Hallman, T. J.; Hamed, A.; Harris, J. W.; He, W.; Heinz, M.; Heppelmann, S.; Hippolyte, B.; Hirsch, A.; Hjort, E.; Hoffman, A. M.; Hoffmann, G. W.; Hofman, D. J.; Hollis, R. S.; Huang, H. Z.; Humanic, T. J.; Huo, L.; Igo, G.; Iordanova, A.; Jacobs, P.; Jacobs, W. W.; Jakl, P.; Jena, C.; Jin, F.; Jones, C. L.; Jones, P. G.; Joseph, J.; Judd, E. G.; Kabana, S.; Kajimoto, K.; Kang, K.; Kapitan, J.; Kauder, K.; Keane, D.; Kechechyan, A.; Kettler, D.; Khodyrev, V. Yu.; Kikola, D. P.; Kiryluk, J.; Kisiel, A.; Klein, S. R.; Knospe, A. G.; Kocoloski, A.; Koetke, D. D.; Konzer, J.; Kopytine, M.; Koralt, I.; Korsch, W.; Kotchenda, L.; Kouchpil, V.; Kravtsov, P.; Kravtsov, V. I.; Krueger, K.; Krus, M.; Kuhn, C.; Kumar, L.; Kurnadi, P.; Lamont, M. A. C.; Landgraf, J. M.; Lapointe, S.; Lauret, J.; Lebedev, A.; Lednicky, R.; Lee, C.-H.; Lee, J. H.; Leight, W.; Levine, M. J.; Li, C.; Li, N.; Li, Y.; Lin, G.; Lindenbaum, S. J.; Lisa, M. A.; Liu, F.; Liu, H.; Liu, J.; Liu, L.; Ljubicic, T.; Llope, W. J.; Longacre, R. S.; Love, W. A.; Lu, Y.; Ludlam, T.; Ma, G. L.; Ma, Y. G.; Mahapatra, D. P.; Majka, R.; Mall, O. I.; Mangotra, L. K.; Manweiler, R.; Margetis, S.; Markert, C.; Masui, H.; Matis, H. S.; Matulenko, Yu. A.; McDonald, D.; McShane, T. S.; Meschanin, A.; Milner, R.; Minaev, N. G.; Mioduszewski, S.; Mischke, A.; Mohanty, B.; Morozov, D. A.; Munhoz, M. G.; Nandi, B. K.; Nattrass, C.; Nayak, T. K.; Nelson, J. M.; Netrakanti, P. K.; Ng, M. J.; Nogach, L. V.; Nurushev, S. B.; Odyniec, G.; Ogawa, A.; Okada, H.; Okorokov, V.; Olson, D.; Pachr, M.; Page, B. S.; Pal, S. K.; Pandit, Y.; Panebratsev, Y.; Pawlak, T.; Peitzmann, T.; Perevoztchikov, V.; Perkins, C.; Peryt, W.; Phatak, S. C.; Pile, P.; Planinic, M.; Ploskon, M. A.; Pluta, J.; Plyku, D.; Poljak, N.; Poskanzer, A. M.; Potukuchi, B. V. K. S.; Prindle, D.; Pruneau, C.; Pruthi, N. K.; Pujahari, P. R.; Putschke, J.; Raniwala, R.; Raniwala, S.; Ray, R. L.; Redwine, R.; Reed, R.; Ridiger, A.; Ritter, H. G.; Roberts, J. B.; Rogachevskiy, O. V.; Romero, J. L.; Rose, A.; Roy, C.; Ruan, L.; Russcher, M. J.; Sahoo, R.; Sakai, S.; Sakrejda, I.; Sakuma, T.; Salur, S.; Sandweiss, J.; Sarsour, M.; Schambach, J.; Scharenberg, R. P.; Schmitz, N.; Seger, J.; Selyuzhenkov, I.; Seyboth, P.; Shabetai, A.; Shahaliev, E.; Shao, M.; Sharma, M.; Shi, S. S.; Shi, X.-H.; Sichtermann, E. P.; Simon, F.; Singaraju, R. N.; Skoby, M. J.; Smirnov, N.; Sorensen, P.; Sowinski, J.; Spinka, H. M.; Srivastava, B.; Stanislaus, T. D. S.; Staszak, D.; Strikhanov, M.; Stringfellow, B.; Suaide, A. A. P.; Suarez, M. C.; Subba, N. L.; Sumbera, M.; Sun, X. M.; Sun, Y.; Sun, Z.; Surrow, B.; Symons, T. J. M.; de Toledo, A. Szanto; Takahashi, J.; Tang, A. H.; Tang, Z.; Tarini, L. H.; Tarnowsky, T.; Thein, D.; Thomas, J. H.; Tian, J.; Timmins, A. R.; Timoshenko, S.; Tlusty, D.; Tokarev, M.; Trainor, T. A.; Tram, V. N.; Trentalange, S.; Tribble, R. E.; Tsai, O. D.; Ulery, J.; Ullrich, T.; Underwood, D. G.; Buren, G. Van; Nieuwenhuizen, G. Van; Vanfossen, J. A., Jr.; Varma, R.; Vasconcelos, G. M. S.; Vasiliev, A. N.; Videbaek, F.; Vigdor, S. E.; Viyogi, Y. P.; Vokal, S.; Voloshin, S. A.; Wada, M.

2009-10-01

377

Stream dynamics between 1 AU and 2 AU: A detailed comparison of observations and theory  

NASA Technical Reports Server (NTRS)

A radial alignment of three solar wind stream structures observed by IMP-7 and -8 (at 1.0 AU) and Voyager 1 and 2 (in the range 1.4 to 1.8 AU) in late 1977 is presented. It is demonstrated that several important aspects of the observed dynamical evolution can be both qualitatively and quantitatively described with a single-fluid 2-D MHD numerical model of quasi-steady corotating flow, including accurate prediction of: (1) the formation of a corotating shock pair at 1.75 AU in the case of a simple, quasi-steady stream; (2) the coalescence of the thermodynamic and magnetic structures associated with the compression regions of two neighboring, interacting, corotating streams; and (3) the dynamical destruction of a small (i.e., low velocity-amplitude, short spatial-scale) stream by its overtaking of a slower moving, high-density region associated with a preceding transient flow. The evolution of these flow systems is discussed in terms of the concepts of filtering and entrainment.

Burlaga, L. F.; Pizzo, V.; Lazarus, A.; Gazis, P. R.

1984-01-01

378

Modeling the Accretion Structure of AU Mon  

NASA Astrophysics Data System (ADS)

AU Mon is a long-period (11.113 days) Algol-type binary system with a persistent accretion disk that is apparent as double-peaked H? emission. We present previously unpublished optical spectra of AU Mon which were obtained over 20 years from 1991-2011 with dense orbital phase coverage. We utilize these data, along with archival UV spectra, to model the temperature and structure of the accretion disk and the gas stream. Synthetic spectral profiles for lines including H?, H?, and the Al III and Si IV doublets were computed with the Shellspec program. The best match between the model spectra and the observations is obtained for an accretion disk of inner/outer radius 5.1/23 R ?, thickness of 5.2 R ?, density of 1.0 10-13 g cm-3, and maximum temperature of 14,000 K, along with a gas stream at a temperature of ~8000 K transferring ~2.4 10-9 M ? yr-1. We show H? Doppler tomograms of the velocity structure of the gas, constructed from difference profiles calculated through sequentially subtracting contributions from the stars and accretion structures. The tomograms provide independent support for the Shellspec modeling, while also illustrating that residual emission at sub-Keplerian velocities persists even after subtracting the disk and stream emission. Spectral variability in the H? profile beyond that expected from either the orbital or the long-period cycle is present on both multi-week and multi-year timescales, and may reflect quasi-random changes in the mass transfer rate or the disk structure. Finally, a transient UV spectral absorption feature may be modeled as an occasional outflow launched from the vicinity of the disk-stream interaction region.

Atwood-Stone, Corwin; Miller, Brendan P.; Richards, Mercedes T.; Budaj, Jn; Peters, Geraldine J.

2012-12-01

379

Electron transfer catalysis with monolayer protected Au25 clusters  

NASA Astrophysics Data System (ADS)

Au25L18 (L = S(CH2)2Ph) clusters were prepared and characterized. The resulting monodisperse clusters were reacted with bis(pentafluorobenzoyl) peroxide in dichloromethane to form Au25L18+ quantitatively. The kinetics and thermodynamics of the corresponding electron transfer (ET) reactions were characterized via electrochemistry and thermochemical calculations. Au25L18+ was used in homogeneous redox catalysis experiments with a series of sym-substituted benzoyl peroxides, including the above peroxide, bis(para-cyanobenzoyl) peroxide, dibenzoyl peroxide, and bis(para-methoxybenzoyl) peroxide. Peroxide dissociative ET was catalyzed using both the Au25L18/Au25L18- and the Au25L18+/Au25L18 redox couples as redox mediators. Simulation of the CV curves led to determination of the ET rate constant (kET) values for concerted dissociative ET to the peroxides. The ET free energy ?G could be estimated for all donor-acceptor combinations, leading to observation of a nice activation-driving force (log kETvs. ?G) relationship. Comparison with the kET obtained using a ferrocene-type donor with a formal potential similar to that of Au25L18/Au25L18- showed that the presence of the capping monolayer affects the ET rate rather significantly, which is attributed to the intrinsic nonadiabaticity of peroxide acceptors.Au25L18 (L = S(CH2)2Ph) clusters were prepared and characterized. The resulting monodisperse clusters were reacted with bis(pentafluorobenzoyl) peroxide in dichloromethane to form Au25L18+ quantitatively. The kinetics and thermodynamics of the corresponding electron transfer (ET) reactions were characterized via electrochemistry and thermochemical calculations. Au25L18+ was used in homogeneous redox catalysis experiments with a series of sym-substituted benzoyl peroxides, including the above peroxide, bis(para-cyanobenzoyl) peroxide, dibenzoyl peroxide, and bis(para-methoxybenzoyl) peroxide. Peroxide dissociative ET was catalyzed using both the Au25L18/Au25L18- and the Au25L18+/Au25L18 redox couples as redox mediators. Simulation of the CV curves led to determination of the ET rate constant (kET) values for concerted dissociative ET to the peroxides. The ET free energy ?G could be estimated for all donor-acceptor combinations, leading to observation of a nice activation-driving force (log kETvs. ?G) relationship. Comparison with the kET obtained using a ferrocene-type donor with a formal potential similar to that of Au25L18/Au25L18- showed that the presence of the capping monolayer affects the ET rate rather significantly, which is attributed to the intrinsic nonadiabaticity of peroxide acceptors. This article was submitted as part of a Themed Issue on metallic clusters. Other papers on this topic can be found in issue 14 of vol. 4 (2012). This issue can be found from the Nanoscale homepage [http://www.rsc.org/nanoscale].

Antonello, Sabrina; Hesari, Mahdi; Polo, Federico; Maran, Flavio

2012-08-01

380

Theoretical studies of acrolein hydrogenation on Au20 nanoparticle  

NASA Astrophysics Data System (ADS)

Gold nanoparticles play a key role in catalytic processes. We investigated the kinetics of stepwise hydrogenation of acrolein on Au20 cluster model and compared with that on Au(110) surface. The rate-limiting step barrier of C=C reduction is about 0.5 eV higher than that of C=O hydrogenation on Au(110) surface. On Au20 nanoparticle, however, the energy barrier of the rate-determining step for C=C hydrogenation turns out to be slightly lower than the value for the C=O reduction. The selectivity difference on the two substrate models are attributed to different adsorption modes of acrolein: via the C=C on Au20, compared to through both C=C and C=O on Au(110). The preference switch implies that the predicted selectivity of competitive hydrogenation depends on substrate model sensitively, and particles with more low-coordinated Au atoms than flat surfaces are favorable for C=C hydrogenation, which is in agreement with experimental result.

Li, Zhe; Chen, Zhao-Xu; He, Xiang; Kang, Guo-Jun

2010-05-01

381

Electronic and chemical properties of supported Au nanoparticles  

NASA Astrophysics Data System (ADS)

Oxidation and reduction behaviors of Au nanoparticles with different sizes on highly ordered pyrolytic graphite (HOPG) and silica were studied using X-ray photoelectron spectroscopy (XPS). For Au nanoparticles smaller than 6 nm in diameter, we found a novel oxygen species formed in Au nanoparticles, which is absent in larger particles and Au bulk crystals. This new oxygen species is attributed to the subsurface oxygen: for a complete understanding of the structures of catalytically active Au, the new oxygen species should be taken into account. In this context, it is worth mentioning that the subsurface oxygen species has been suggested to play an important role in heterogeneous catalysis. With decreasing Au particle size, a positive core level shift can be observed, which can be mostly attributed to the final state effects. Increase of the number of undercoordinated atoms with decreasing particle size is evidenced by a reduced splitting between 5d 3/2 and 5d 5/2 states and a band narrowing. Our results on electronic structures of Au nanoparticles on silica are compared to those on other substrates such as zirconia and titania to shed light onto the metal-support interactions.

Lim, Dong Chan; Lopez-Salido, Ignacio; Dietsche, Rainer; Bubek, Moritz; Kim, Young Dok

2006-11-01

382

D'une olivine naturelle un catalyseur industriel au nickel pour la production d'hydrogne partir de biomasse  

NASA Astrophysics Data System (ADS)

L'olivine naturelle ((Mg,Fe){2}SiO{4}) prsente un double intrt comme catalyseur de gazification de la biomasse en lit fluidis circulant : son activit catalytique suprieure la silice et sa grande duret lui confrant une rsistance l'attrition. L'addition de nickel l'olivine naturelle permet d'obtenir un catalyseur de reformage du mthane et des goudrons rpondant aux exigences lies au procd, savoir une utilisation en lit fluidis circulant alternativement en phase rductrice et oxydante et une association forte nickel-olivine. Le rle des diffrentes phases prsentes dans l'olivine est mis en vidence par DRX, TPR, MEB et spectroscopie Mssbauer. Cette tude permet d'identifier les interactions nickel-support du catalyseur cres diffrentes tempratures de calcination et d'expliquer les mcanismes de formation du catalyseur actif. Un rejet de fer sous forme d'oxyde est observ. Il peut tre expliqu soit par un change avec le nickel, sans modification de la structure olivine initiale, conduisant la formulation ((Mg,Ni){2}SiO{4}), soit par la prcipitation d'une phase MgO avec formation d'une solution solide NiO-MgO. La deuxime hypothse est privilgie car la prsence de cette phase est cohrente avec l'existence d'interactions fortes nickel-olivine et avec les rapports Ni/Mg {=} 1 la surface des grains sur l'chantillon Ni/olivine calcin 1100circC. Elle explique la grande activit catalytique de cet chantillon en reformage du mthane.

?wierczy?ski, D.; Courson, C.; Guille, J.; Kiennemann, A.

2004-11-01

383

Interaction of energetic clusters (Au 3, Au 400 and C 60) with organic material and adsorbed gold nanoparticles  

NASA Astrophysics Data System (ADS)

Using molecular dynamics simulations (MD), this contribution compares the interaction of three energetic clusters (Au 3, Au 400 and C 60) with a hybrid surface of crystalline polyethylene (PE) covered by a layer of gold nanoparticles. This model system mimics the situation encountered in metal-assisted secondary ion mass spectrometry. The chosen impact points are representative of the PE surface, the metal particles and the frontier between the metal and the polymer. The simulations show the differences between the impact over the Au nanoparticle and the polymer surface, in terms of projectile penetration, crater formation and sputtering yield of PE and gold species. For C 60 and Au 3 projectiles, a simple correlation is found between the quantity of energy deposited in the top polymeric layers and the quantity of sputtered polymer material, including all the impact points. The results obtained with Au 400 do not fit on this line, indicating that other physical parameters are prevalent. The mechanistic view of the interaction provided by the MD helps explain the differences. In short, while C 60 and Au 3 quickly break apart, creating energetic recoils and severing many bonds in the surface, Au 400, with the largest total momentum by far (10 times larger than the others) and the lowest energy per atom (25 eV), tends to act and implant in the solid as a single entity, pushing the polymeric material downwards and breaking few bonds in the surface.

Restrepo, Oscar A.; Prabhakaran, Aneesh; Delcorte, Arnaud

2011-07-01

384

Oxidation of nanoscale Au-In alloy particles as a possible route toward stable Au-based catalysts  

PubMed Central

The oxidation of bimetallic alloy nanoparticles comprising a noble and a nonnoble metal is expected to cause the formation of a single-component surface oxide of the nonnoble metal, surrounding a core enriched with the noble metal. Studying the room temperature oxidation of AuIn nanoparticles, we show that this simple picture does not apply to an important class of bimetallic alloys, in which the oxidation proceeds via predominant oxygen diffusion. Instead of a crystalline In2O3 shell, such oxidation leads to an amorphous shell of mixed AuIn oxide that remains stable to high temperatures and whose surface layer is enriched with Au. The Au-rich mixed oxide is capable of adsorbing both CO and O2 and converting them to CO2, which desorbs near room temperature. The oxidation of AuIn alloys to a mixed AuIn oxide shows significant promise as a viable approach toward Au-based oxidation catalysts, which do not require any complex synthesis processes and resist deactivation up to at least 300 C. PMID:23754412

Sutter, Eli A.; Tong, Xiao; Jungjohann, Katherine

2013-01-01

385

From Superatomic Au25(SR)18- to Superatomic M@Au24(SR)18q Core-shell Clusters.  

SciTech Connect

Au{sub 25}(SR){sub 18}{sup -} belongs to a new type of superatom that features an icosahedral Au{sub 13} core-shell structure and a protective layer of six RS(Au-SR){sub 2} motifs. This superatom has a magic number of 8 free electrons that fully fill the 1s and 1p levels of the electron-shell model. By applying this superatom concept to the core-substitution chemistry of Au{sub 25}(SR){sub 18}{sup -}, we first scanned the periodic table for the potential core atom M by applying a simple rule derived from the 8-electron count and then optimized the selected candidates by density functional theory calculations to create many series of M{at}Au{sub 24}(SR){sub 18}{sup q} core-shell nanoclusters. We found that 16 elements from groups 1, 2, and 10-14 of the periodic table can maintain both electronic and geometric structures of the original Au{sub 25}(SR){sub 18}{sup -} magic cluster, indicating that the electron-counting rule based on the superatom concept is powerful in predicting viable M{at}Au{sub 24}(SR){sub 18}{sup q} clusters. Our work opens up a promising area for experimental exploration.

Jiang, Deen [ORNL; Dai, Sheng [ORNL

2009-01-01

386

Comparison of the space-time extent of the emission source in $d$$+$Au and Au$+$Au collisions at $\\sqrt{s_{NN}}=200$ GeV  

E-print Network

Two-pion interferometry measurements in $d$$+$Au and Au$+$Au collisions at $\\sqrt{s_{{NN}}}=200$ GeV are used to extract and compare the Gaussian source radii R$_{{\\rm out}}$, R$_{{\\rm side}}$, and R$_{{\\rm long}}$, which characterize the space-time extent of the emission sources. The comparisons, which are performed as a function of collision centrality and the mean transverse momentum for pion pairs, indicate strikingly similar patterns for the $d$$+$Au and Au$+$Au systems. They also indicate a linear dependence of R$_{{\\rm side}}$ on the initial transverse geometric size $\\bar{R}$, as well as a smaller freeze-out size for the $d$$+$Au system. These patterns point to the important role of final-state rescattering effects in the reaction dynamics of $d$$+$Au collisions.

A. Adare; S. Afanasiev; C. Aidala; N. N. Ajitanand; Y. Akiba; R. Akimoto; H. Al-Bataineh; J. Alexander; M. Alfred; A. Angerami; K. Aoki; N. Apadula; Y. Aramaki; H. Asano; E. T. Atomssa; R. Averbeck; T. C. Awes; B. Azmoun; V. Babintsev; M. Bai; G. Baksay; L. Baksay; N. S. Bandara; B. Bannier; K. N. Barish; B. Bassalleck; A. T. Basye; S. Bathe; V. Baublis; C. Baumann; A. Bazilevsky; M. Beaumier; S. Beckman; S. Belikov; R. Belmont; R. Bennett; A. Berdnikov; Y. Berdnikov; J. H. Bhom; A. A. Bickley; D. Black; D. S. Blau; J. Bok; J. S. Bok; K. Boyle; M. L. Brooks; J. Bryslawskyj; H. Buesching; V. Bumazhnov; G. Bunce; S. Butsyk; C. M. Camacho; S. Campbell; A. Caringi; C. -H. Chen; C. Y. Chi; M. Chiu; I. J. Choi; J. B. Choi; R. K. Choudhury; P. Christiansen; T. Chujo; P. Chung; O. Chvala; V. Cianciolo; Z. Citron; B. A. Cole; Z. Conesa del Valle; M. Connors; P. Constantin; M. Csand; T. Csrg?; T. Dahms; S. Dairaku; I. Danchev; K. Das; A. Datta; M. S. Daugherity; G. David; M. K. Dayananda; K. DeBlasio; K. Dehmelt; A. Denisov; A. Deshpande; E. J. Desmond; K. V. Dharmawardane; O. Dietzsch; L. Ding; A. Dion; J. H. Do; M. Donadelli; O. Drapier; A. Drees; K. A. Drees; J. M. Durham; A. Durum; D. Dutta; L. D'Orazio; S. Edwards; Y. V. Efremenko; F. Ellinghaus; T. Engelmore; A. Enokizono; H. En'yo; S. Esumi; B. Fadem; N. Feege; D. E. Fields; M. Finger; M. Finger; \\, Jr.; F. Fleuret; S. L. Fokin; Z. Fraenkel; J. E. Frantz; A. Franz; A. D. Frawley; K. Fujiwara; Y. Fukao; T. Fusayasu; C. Gal; P. Gallus; P. Garg; I. Garishvili; H. Ge; F. Giordano; A. Glenn; H. Gong; M. Gonin; Y. Goto; R. Granier de Cassagnac; N. Grau; S. V. Greene; G. Grim; M. Grosse Perdekamp; Y. Gu; T. Gunji; H. Guragain; H. -. Gustafsson; T. Hachiya; J. S. Haggerty; K. I. Hahn; H. Hamagaki; J. Hamblen; R. Han; S. Y. Han; J. Hanks; E. P. Hartouni; S. Hasegawa; E. Haslum; R. Hayano; X. He; M. Heffner; T. K. Hemmick; T. Hester; J. C. Hill; M. Hohlmann; R. S. Hollis; W. Holzmann; K. Homma; B. Hong; T. Horaguchi; D. Hornback; T. Hoshino; J. Huang; S. Huang; T. Ichihara; R. Ichimiya; J. Ide; Y. Ikeda; K. Imai; Y. Imazu; M. Inaba; A. Iordanova; D. Isenhower; M. Ishihara; T. Isobe; M. Issah; A. Isupov; D. Ivanischev; D. Ivanishchev; Y. Iwanaga; B. V. Jacak; S. J. Jeon; M. Jezghani; J. Jia; X. Jiang; J. Jin; B. M. Johnson; T. Jones; E. Joo; K. S. Joo; D. Jouan; D. S. Jumper; F. Kajihara; S. Kametani; N. Kamihara; J. Kamin; J. H. Kang; J. S. Kang; J. Kapustinsky; K. Karatsu; M. Kasai; D. Kawall; M. Kawashima; A. V. Kazantsev; T. Kempel; J. A. Key; V. Khachatryan; A. Khanzadeev; K. Kihara; K. M. Kijima; J. Kikuchi; A. Kim; B. I. Kim; C. Kim; D. H. Kim; D. J. Kim; E. Kim; E. -J. Kim; H. -J. Kim; M. Kim; S. H. Kim; Y. -J. Kim; Y. K. Kim; E. Kinney; K. Kiriluk; . Kiss; E. Kistenev; J. Klatsky; D. Kleinjan; P. Kline; T. Koblesky; L. Kochenda; M. Kofarago; B. Komkov; M. Konno; J. Koster; D. Kotchetkov; D. Kotov; A. Kozlov; A. Krl; A. Kravitz; G. J. Kunde; K. Kurita; M. Kurosawa; Y. Kwon; G. S. Kyle; R. Lacey; Y. S. Lai; J. G. Lajoie; A. Lebedev; D. M. Lee; J. Lee; K. Lee; K. B. Lee; K. S. Lee; S. H. Lee; M. J. Leitch; M. A. L. Leite; M. Leitgab; E. Leitner; B. Lenzi; X. Li; P. Lichtenwalner; P. Liebing; S. H. Lim; L. A. Linden Levy; T. Lika; A. Litvinenko; H. Liu; M. X. Liu; B. Love; R. Luechtenborg; D. Lynch; C. F. Maguire; Y. I. Makdisi; M. Makek; A. Malakhov; M. D. Malik; A. Manion; V. I. Manko; E. Mannel; Y. Mao; H. Masui; F. Matathias; M. McCumber; P. L. McGaughey; D. McGlinchey; C. McKinney; N. Means; A. Meles; M. Mendoza; B. Meredith; Y. Miake; T. Mibe; A. C. Mignerey; P. Mike; K. Miki; A. J. Miller; A. Milov; D. K. Mishra; M. Mishra; J. T. Mitchell; S. Miyasaka; S. Mizuno; A. K. Mohanty; P. Montuenga; H. J. Moon; T. Moon; Y. Morino; A. Morreale; D. P. Morrison; T. V. Moukhanova; T. Murakami; J. Murata; A. Mwai; S. Nagamiya; J. L. Nagle; M. Naglis; M. I. Nagy; I. Nakagawa; H. Nakagomi; Y. Nakamiya; K. R. Nakamura; T. Nakamura; K. Nakano; S. Nam; C. Nattrass; P. K. Netrakanti; J. Newby; M. Nguyen; M. Nihashi; T. Niida; R. Nouicer; N. Novitzky; A. S. Nyanin; C. Oakley; E. O'Brien; S. X. Oda; C. A. Ogilvie; M. Oka; K. Okada; Y. Onuki; J. D. Orjuela Koop; A. Oskarsson; M. Ouchida; H. Ozaki; K. Ozawa; R. Pak; V. Pantuev; V. Papavassiliou; I. H. Park; J. Park; S. Park; S. K. Park; W. J. Park; S. F. Pate; L. Patel; M. Patel; H. Pei; J. -C. Peng; H. Pereira; D. V. Perepelitsa; G. D. N. Perera; V. Peresedov; D. Yu. Peressounko; J. Perry; R. Petti; C. Pinkenburg; R. Pinson; R. P. Pisani; M. Proissl; M. L. Purschke; A. K. Purwar; H. Qu; J. Rak; A. Rakotozafindrabe; I. Ravinovich; K. F. Read; S. Rembeczki; K. Reygers; D. Reynolds; V. Riabov; Y. Riabov; E. Richardson; N. Riveli; D. Roach; G. Roche; S. D. Rolnick; M. Rosati; C. A. Rosen; S. S. E. Rosendahl; P. Rosnet; Z. Rowan; J. G. Rubin; P. Rukoyatkin; P. Rui?ka; B. Sahlmueller; N. Saito; T. Sakaguchi

2014-04-21

387

Derivatives of the thiolate-protected gold cluster Au25(SR)18 -1  

NASA Astrophysics Data System (ADS)

Loss of small fragments (like AuL, Au2L3, Au4L4) have been found systematically in several MALDI and FAB experiments on thiolate-protected gold clusters of different sizes. When using the cluster Au25L18 -1 as parent cluster, the fragmented cluster Au21L14 -1 has been reported to be obtained in high proportion (L = SCH2CH2Ph). Here we analyse a few possible fragmentation patterns of the well-known parent cluster Au25L18 -1 (L = SCH3). Using DFT calculations we study the different atomic configurations obtained after a AuL fragment is lost from Au25L18 -1. We found energetically favourable configurations that can be written as Au13 [Au2L3]6- z [AuL2] z -1, where the modification can be described as a replacement of the long protecting unit by a short one (Au2L3 ? AuL2). A full replacement ( z = 6) gives rise to a protected Au19L12 -1 cluster. This mechanism does not modify the super-atomic electronic structure of the gold core, i.e., all these fragments remain an 8 electron super-atom clusters exactly like the parent Au25L18 -1. We suggest that the Au19L12 -1 cluster could be realized by using a bulky thiolate, such as the tert-butyl thiolate SC(CH3)3.

Lopez-Acevedo, O.; Hkkinen, H.

2011-07-01

388

Visible light photoactivity of TiO2 loaded with monometallic (Au or Pt) and bimetallic (Au/Pt) nanoparticles  

NASA Astrophysics Data System (ADS)

TiO2 modified with monometallic (Au or Pt) and bimetallic (Au/Pt) nanoparticles have been prepared using a water-in-oil microemulsion system (water/AOT/cyclohexane) followed by calcination step. The effect of metal ratio, reducing agent type (NaBH4 or N2H4), TiO2 matrix type (P-25, ST-01, TiO-5, TiO2 nanotubes or TiO2 obtained by TIP hydrolysis) as well as calcination temperature (from 350 to 650 C) were systematically investigated. Obtained photocatalysts were characterized by UV-vis diffuse-reflectance spectroscopy (DRS), BET surface area measurements, scanning transmission microscopy (STEM), X-ray diffraction analysis (XRD), and X-ray photoelectron spectroscopy (XPS). Photocatalytic activity under visible light (? > 420 nm) has been estimated in phenol degradation reaction in aqueous phase. The results showed that phenol degradation rate under visible light in the presence of TiO2 loaded with Au/Pt nanoparticles differed from 0.7 to 2.2 ?mol dm-3 min-1 for samples prepared using different reducing agent. Sodium borohydride (NaBH4) favors formation of smaller Au/Pt nanoparticles and higher amount gold in Au/Pt is in the form of electronegative species (Au?-) resulted in higher photoactivity. TiO2 obtained by TIP hydrolysis in microemulsion system seems to be the best support for Au/Pt nanoparticles from all among investigated matrix. It was also observed that enhancement of calcination temperature from 450 to 650 C resulted in rapid drop of Au/Pt-TiO2 photoactivity under visible light due to surface area shrinkage, crystal structure change and probably change in Au/Pt nanoparticles morphology.

Go??biewska, Anna; Lisowski, Wojciech; Jarek, Marcin; Nowaczyk, Grzegorz; Zieli?ska-Jurek, Anna; Zaleska, Adriana

2014-10-01

389

Baryon emission at target rapidities in Si+Al,Cu,Au collisions at 14.6A GeV\\/c and Au+Au collisions at 11.7A GeV\\/c  

Microsoft Academic Search

We report measurements of proton emission at target rapidities for minimum bias and central collisions of 14.6A GeV\\/c 28Si with Al, Cu, and Au nuclei as well as minimum bias and central collisions of 11.7A GeV\\/c 197Au with Au nuclei. Results for deuteron emission are also reported for the Si+Au reaction. The spectra span the laboratory angular range of 50<=theta<=130

L. Ahle; Y. Akiba; D. Beavis; P. Beery; H. C. Britt; B. Budick; C. Chasman; Z. Chen; C. Y. Chi; Y. Y. Chu; V. Cianciolo; B. A. Cole; J. B. Costales; H. J. Crawford; J. B. Cumming; R. Debbe; J. Engelage; S. Y. Fung; M. Gonin; S. Gushue; H. Hamagaki; R. S. Hayano; S. Hayashi; S. Homma; H. Kaneko; J. Kang; S. Kaufman; W. L. Kehoe; K. Kurita; R. J. Ledoux; M. J. Levine; Y. Miake; D. P. Morrison; R. J. Morse; B. Moskowitz; S. Nagamiya; M. N. Namboodiri; T. K. Nayak; J. Olness; C. G. Parsons; L. P. Remsberg; D. Roerich; P. Rothschild; H. Sakurai; T. C. Sangster; R. Seto; K. Shigaki; R. Soltz; P. Stankus; S. G. Steadman; G. S. Stephans; T. Sung; Y. Tanaka; M. J. Tannenbaum; J. Thomas; S. Tonse; S. Ueno; J. H. van Dijk; F. Videbaek; O. Vossnack; V. Vustadakis; F. Q. Wang; Y. Wang; H. E. Wegner; D. S. Woodruff; Y. D. Wu; K. Yagi; X. Yang; D. Zachary; W. A. Zajc

1997-01-01

390

Synthesis of high purity Au nanobelts via the one-dimensional self-assembly of triangular Au nanoplates  

NASA Astrophysics Data System (ADS)

High purity (88%) gold nanobelts have been synthesized in the water/polyvinylpyrrolidone (PVP)/n-pentanol system created to realize the selective-adsorption of PVP on Au which directs Au to grow in belt form via the one-dimensional (1D) self-assembly of triangular Au nanoplates. These nanobelts present uniform thickness and lateral dimension, large aspect ratio up to 160, unique 60 angle end structure, and double-peak plasmon resonance property. The PVP directed 1D self-assembly method demonstrated here may provide a general route for the shape-selective synthesis of the other 1D functional nanostructures.

Zhang, Jianhui; Liu, Huaiyong; Wang, Zhenlin; Ming, Naiben

2007-09-01

391

L'gypte en groupe, en couple ou en solitaire. Trois modalits du voyage au fminin au XIX  

E-print Network

L'?gypte en groupe, en couple ou en solitaire. Trois modalités du voyage au féminin au XIX e siècle orientales les plus fréquentées par les voyageurs européens. Les récits de voyage de Savary et de Volney, à Alexandrie, au Caire ou en Haute-?gypte. Celles-ci ne voyagent pas toutes de la même façon, pas plus, d

Boyer, Edmond

392

Transverse-momentum spectra in Au plus Au and d plus Au collisions at root s(NN)=200 GeV and the pseudorapidity dependence of high-p(T) suppression  

E-print Network

We present spectra of charged hadrons from Au+Au and d+Au collisions at roots(NN)=200 GeV measured with the BRAHMS experiment at RHIC. The spectra for different collision centralities are compared to spectra from p+(p) ...

Ito, H.; Murray, Michael J.; Neumann, B.; Norris, J.; Sanders, Stephen J.

2003-08-01

393

Thermodynamic and kinetic origins of au25 (0) nanocluster electrochemiluminescence.  

PubMed

Au clusters with protecting organothiolate ligands and core diameters less than 2?nm are molecule-like structures, suitable for catalysis, optoelectronics and biology applications. The spectroscopy and electrochemistry of Au25 (0) (Au25 [(SCH2 CH2 Ph)18 ], SCH2 CH2 Ph=2-phenylethanethiol) allowed us to construct a Latimer-type diagram for the first time, which revealed a rich photoelectrochemistry of the cluster and the unique relationship to its various oxidation states and corresponding excited states. The occurrence of cluster electrochemiluminescence (ECL) was examined in the presence of tri-n-propylamine (TPrA) as a co-reactant and was discovered to be in the near-infrared (NIR) region with peak wavelengths of 860, 865, and 960?nm, emitted by Au25 (+*) , Au25 (0*) , and Au25 (-*) , respectively. The light emissions, with an efficiency up to 103?% relative to that of the efficient Ru(bpy)3 (2+) /TPrA system, depended on the kinetics of the reactions between the electrogenerated TPrA radical and Au25 (z) (z=2+, 1+, 1-, and 2-) in the vicinity of the electrode or the bulk Au25 (0) . These thermodynamic and kinetic origins were further explored by means of spooling ECL and photoluminescence spectroscopy during a sweep of the potential or at a constant potential applied to the working electrode. NIR-ECL emissions of the cluster can be tuned in wavelength and intensity by adjusting the applied potential and TPrA concentration based on the above discoveries. PMID:25263693

Hesari, Mahdi; Workentin, Mark S; Ding, Zhifeng

2014-11-10

394

The effect of stretching thiyl and ethynyl Au molecular junctions  

Microsoft Academic Search

We perform density functional theory (DFT) calculations of the stretching of Au(111)-X-Au(111) molecular junctions where X is either a thiyl or ethynyl biradical. The equilibrium geometries for the radicals adsorbing on the surface are first calculated and the radicals then placed in the junction geometry. The unit cell is stepwise increased in length and the geometry relaxed at each step.

R. C. Hoft; M. J. Ford; V. M. Garca-Surez; C. J. Lambert; M. B. Cortie

2008-01-01

395

Opportunits d'investissement au Maroc M. Mohammed AMRABT  

E-print Network

secondaire 29,7% Secteur tertiaire 55,0% Taux d'Inflation 0,9% (2011) Source : Haut Commissariat au Plan et » Extrait(s): Confirmation de la notation "Investment Grade" 2010 « Le Maroc a réussi à réduire les niveaux notés « investment grade » ...Consensus très clair autour des réformes qui ont imprimé une dynamique au

396

Alignment following Au L3 photoionization by synchrotron radiation  

Microsoft Academic Search

The alignment of Au+ ions following L3 photoionization has been studied using a high-resolution x-ray spectrometer. We observed a small anisotropy for the angular dependence of Au Ligr and Lagr emissions. The alignment parameter {\\\\cal A}_{20} derived from the experimental results is compared with theoretical calculations by Hartree-Fock approximation and random phase approximation with exchange. The contribution to the alignment

H. Yamaoka; M. Oura; K. Takahiro; T. Morikawa; S. Ito; M. Mizumaki; S. Semenov; N. Cherepkov; N. Kabachnik; T. Mukoyama

2003-01-01

397

Intrinsic Spin Seebeck Effect in Au/YIG  

NASA Astrophysics Data System (ADS)

The acute magnetic proximity effects in Pt/YIG compromise the suitability of Pt as a spin current detector. We show that Au/YIG, with no anomalous Hall effect and a negligible magnetoresistance, allows the measurements of the intrinsic spin Seebeck effect with a magnitude much smaller than that in Pt/YIG. The experiment results are consistent with the spin polarized density functional calculations for Pt with a sizable and Au with a negligible magnetic moment near the interface with YIG.

Qu, D.; Huang, S. Y.; Hu, Jun; Wu, Ruqian; Chien, C. L.

2013-02-01

398

Le Thorium Molten Salt Reactor : Au del du MSBR  

E-print Network

Le Thorium Molten Salt Reactor : Au delà du MSBR L. Mathieu, D. Heuer, A. Billebaud, R. Brissot, C Général De Gaulle, 92140 Clamart, France Résumé La ré-évaluation du concept de Molten Salt Breeder Reactor réflexion est menée afin de trou- ver des solutions et ainsi d'aboutir au concept du Thorium Mol- ten Salt

Paris-Sud XI, Université de

399

Segregation effects on the properties of (AuAg)???.  

PubMed

AuAg nanoclusters are promising supported co-catalysts for photocatalytic hydrogen reduction. However, beyond the quantum regime (N > 100) little is known about how the electronic properties of these nanoparticles are affected by chemical ordering. We investigate the effects of chemical ordering on the properties of 147-atom cuboctahedral AuAg nanoclusters, using empirical potentials coupled with an atomic-swap basin-hopping search to optimise the elemental distribution, with the lowest energy arrangements then reminimised using Density Functional Theory (DFT). Force-field calculations show Au atoms preferentially occupy sub-surface positions in the bimetallic structures, which results in the formation of a pseudo-onion structure for Ag-rich compositions. At the DFT-level, however, an Ag core surrounded by an Au shell (Ag@Au) is energetically favoured, as electron density can be drawn more readily when Au atoms are positioned on the nanocluster surface, thus resulting in a partial negative charge. Core@shell configurations are analogous to structures that can be chemically synthesised, and further detailed electronic analysis is discussed in the context of nanocluster applications to co-catalysed photocatalysis. PMID:24756182

Gould, A L; Heard, C J; Logsdail, A J; Catlow, C R A

2014-10-21

400

Spin Polarization and Quantum Spins in Au Nanoparticles  

PubMed Central

The present study focuses on investigating the magnetic properties and the critical particle size for developing sizable spontaneous magnetic moment of bare Au nanoparticles. Seven sets of bare Au nanoparticle assemblies, with diameters from 3.5 to 17.5 nm, were fabricated with the gas condensation method. Line profiles of the X-ray diffraction peaks were used to determine the mean particle diameters and size distributions of the nanoparticle assemblies. The magnetization curves M(Ha) reveal Langevin field profiles. Magnetic hysteresis was clearly revealed in the low field regime even at 300 K. Contributions to the magnetization from different size particles in the nanoparticle assemblies were considered when analyzing the M(Ha) curves. The results show that the maximum particle moment will appear in 2.4 nm Au particles. A similar result of the maximum saturation magnetization appearing in 2.3 nm Au particles is also concluded through analysis of the dependency of the saturation magnetization MP on particle size. The MP(d) curve departs significantly from the 1/d dependence, but can be described by a log-normal function. Magnetization can be barely detected for Au particles larger than 27 nm. Magnetic field induced Zeeman magnetization from the quantum confined Kubo gap opening appears in Au nanoparticles smaller than 9.5 nm in diameter. PMID:23989607

Li, Chi-Yen; Karna, Sunil K.; Wang, Chin-Wei; Li, Wen-Hsien

2013-01-01

401

Molecular chains and carpets of sexithiophenes on Au(111)  

NASA Astrophysics Data System (ADS)

The two organic molecular materials ? -sexithiophene (6T) and ?,? -dihexylsexithiophene (DH6T) adsorbed on Au(111) in the (sub)monolayer range were investigated by scanning tunneling microscopy (STM) in order to explore the effect of alkyl substitution on the self-assembly at surfaces. Metal substrate step edges are identified as preferred nucleation sites for 6T, while stable nucleus formation for DH6T occurs at kinks of the Au(111) herringbone reconstruction. At low coverage, 6T forms continuous chains of single-molecular width along Au step edges, involving molecular conformation changes by rotations around C-C bonds of neighboring thiophene units. In contrast, DH6T exhibits no ordered structures in the submonolayer range. At monolayer coverage, substantially different structures were observed for the two molecules. 6T forms rows of molecules with parallel long molecular axes, whereas DH6T forms lines along these axes, where the conjugated cores are embedded in a matrix of hexyl chains. Because of different preferred nucleation sites, 6T forms a continuous molecular carpet on extended Au(111) terraces, whereas DH6T resembles a patchworklike carpet as domain boundaries are induced by the Au(111) herringbone surface structure, leading to reduced domain sizes. Alkylation of 6T thus drastically changes the adsorption behavior and the resulting layer structure on the Au surface. These results should be valuable for developing new directed self-assembly schemes on prepatterned surfaces.

Glowatzki, H.; Duhm, S.; Braun, K.-F.; Rabe, J. P.; Koch, N.

2007-09-01

402

The effect of stretching thiyl and ethynyl Au molecular junctions  

NASA Astrophysics Data System (ADS)

We perform density functional theory (DFT) calculations of the stretching of Au(111)-X-Au(111) molecular junctions where X is either a thiyl or ethynyl biradical. The equilibrium geometries for the radicals adsorbing on the surface are first calculated and the radicals then placed in the junction geometry. The unit cell is stepwise increased in length and the geometry relaxed at each step. When stretching the ethynyl junction, a single gold atom is detached from the rest of the surface and the gold-carbon bond does not break. In contrast, the gold-sulfur bond in the thiyl junction breaks without detaching any gold atoms. This behaviour can be attributed to the enhanced strength of the Au-C interaction over the Au-S interaction. In both junctions the conductance calculated using the non-equilibrium Green's function formalism (NEGF) decreases as the junction is stretched. After breakage of the Au-S bond, the thiyl radical contains an unpaired electron on the sulfur atom and the system is in a spin doublet state. Transmission spectra were calculated for the spin-unpolarized case only; evaluation of the spin-polarized density of states suggests that an enhanced conductance for electrons of one spin type may be observed after the Au-S bond is broken.

Hoft, R. C.; Ford, M. J.; Garca-Surez, V. M.; Lambert, C. J.; Cortie, M. B.

2008-01-01

403

On the stability of AuFe alloy nanoparticles.  

PubMed

AuFe nanoparticles with mean diameters d p =13.2 nm have been prepared by inert-gas condensation. Conventional and high-resolution transmission electron microscopy and energy-dispersive x-ray spectroscopy investigations show that the particles are mostly icosahedra. Scanning transmission electron microscopy-energy-dispersive x-ray spectroscopy and scanning transmission electron microscopy-electron energy-loss spectroscopy show that the as-grown particles exhibit a core-shell structure. The shell is mainly composed of an amorphous FeO layer. Although Fe and Au are immiscible in the bulk, the particle cores are found to be homogeneously mixed at the atomic level with a local composition of around Au84Fe16 (at.%). AuFe nanoparticles exhibit a complex magnetic structure in which the core behaves as a spin glass with a freezing temperature of 35 K, whereas the amorphous FeO shell behaves as a ferro-ferrimagnetic system. On annealing above 300 C, the AuFe icosahedra phases separate into their elemental constituents. Hence the as-grown AuFe icosahedra are metastable, thereby implying that the bulk phase diagram also applies for nanoscopic materials. PMID:24784895

Velasco, V; Pohl, D; Surrey, A; Bonatto-Minella, A; Hernando, A; Crespo, P; Rellinghaus, B

2014-05-30

404

Electric Fields and Chiral Magnetic Effect in Cu + Au Collisions  

E-print Network

The non-central Cu + Au collisions can create strong out-of-plane magnetic fields and in-plane ele