Pollution reduction technology program for turboprop engines

NASA Technical Reports Server (NTRS)

Tomlinson, J. G.

1977-01-01

The reduction of CO, HC, and smoke emissions while maintaining acceptable NO(x) emissions without affecting fuel consumption, durability, maintainability, and safety was accomplished. Component combustor concept screening directed toward the demonstration of advanced combustor technology required to meet the EPA exhaust emissions standards for class P2 turboprop engines was covered. The combustion system for the Allison 501-D22A engine was used, and three combustor design concepts - reverse flow, prechamber, and staged fuel were evaluated.

Understanding How Biomass Burning Impacts Climate Change

ScienceCinema

Aiken, Allison

2018-06-12

Biomass burning in Africa is creating a plume that spreads across the Atlantic Ocean all the way to Brazil. Allison Aiken, a research scientist at Los Alamos National Laboratory, collects data about the black carbon aerosols within this plume and their impact on the environment to help improve global climate modeling. A leader in energy science, Los Alamos develops climate models in support of the Laboratory’s mission to strengthen the nation’s energy security. Allison’s work is part of FIDO, a field operations team funded by the Energy Department’s Office of Science’s ARM Climate Research Facility.

Operationalizing Special Operations Aviation in Indonesia

DTIC Science & Technology

2006-12-15

special operations forces Builder: Lockheed Power Plant: Four Allison T56 -A-15 turboprop engines Thrust: 4,910 shaft horsepower each engine...Builder: Lockheed Power Plant: Four Allison T56 -A-15 turboprop engines Thrust: 4,910 shaft horsepower each engine Length: 98 feet, 9 inches (30.09

Superstorm Sandy: Implications For Designing A PostCyber Attack Power Restoration System

DTIC Science & Technology

2016-03-31

for such progress. Phillip Allison, “ Cloak and Secure Your Critical Infrastructure, ICS and SCADA Systems: Building Security into Your Industrial...TechSvcs/Multi-stateFleetResponseWorkshopReport-02-21-13.pdf. Allison, Phillip. “ Cloak and Secure Your Critical Infrastructure, ICS and SCADA Systems

Replicating the AC-130’s Urban Close Air Support Capabilities Around the Clock

DTIC Science & Technology

2006-12-15

Each employs four Allison T56 -15 turbo-prop engines, dual-wheel construction, steerable nose gear, two tandem-mounted main retractable landing gear...Primary Function: Close air support, air interdiction and force protection Builder: Lockheed/Boeing Corp. Power Plant: Four Allison T56 -A-15

Interstitial Spaces: Visual Culture, Domesticity, and Metaphor

ERIC Educational Resources Information Center

Sanders, James H., III; Buenger, Allison

2010-01-01

Allison Buenger graduated from the Ohio State University with a bachelor of fine arts degree in ceramics in December 2009. Her works morph domestic objects into vessels of meaning, sculptures displayed in larger installations of textiles and found objects. Originally from Northeast Ohio, Allison resides in Columbus, Ohio, and works at Open Door…

New Media and Technology. New Directions for Youth Development, No. 128

ERIC Educational Resources Information Center

Bers, Marina Umaschi

2011-01-01

This volume contains the following papers: (1) Beyond Computer Literacy: Supporting Youth's Positive Development through Technology (Marina Umaschi Bers); (2) Educational Technology, Reimagined (Michael Eisenberg); (3) Children as Codesigners of New Technologies: Valuing the Imagination to Transform What Is Possible (Allison Druin); (4) Content…

Overview of the NCC

NASA Technical Reports Server (NTRS)

Liu, Nan-Suey

2001-01-01

A multi-disciplinary design/analysis tool for combustion systems is critical for optimizing the low-emission, high-performance combustor design process. Based on discussions between then NASA Lewis Research Center and the jet engine companies, an industry-government team was formed in early 1995 to develop the National Combustion Code (NCC), which is an integrated system of computer codes for the design and analysis of combustion systems. NCC has advanced features that address the need to meet designer's requirements such as "assured accuracy", "fast turnaround", and "acceptable cost". The NCC development team is comprised of Allison Engine Company (Allison), CFD Research Corporation (CFDRC), GE Aircraft Engines (GEAE), NASA Glenn Research Center (LeRC), and Pratt & Whitney (P&W). The "unstructured mesh" capability and "parallel computing" are fundamental features of NCC from its inception. The NCC system is composed of a set of "elements" which includes grid generator, main flow solver, turbulence module, turbulence and chemistry interaction module, chemistry module, spray module, radiation heat transfer module, data visualization module, and a post-processor for evaluating engine performance parameters. Each element may have contributions from several team members. Such a multi-source multi-element system needs to be integrated in a way that facilitates inter-module data communication, flexibility in module selection, and ease of integration. The development of the NCC beta version was essentially completed in June 1998. Technical details of the NCC elements are given in the Reference List. Elements such as the baseline flow solver, turbulence module, and the chemistry module, have been extensively validated; and their parallel performance on large-scale parallel systems has been evaluated and optimized. However the scalar PDF module and the Spray module, as well as their coupling with the baseline flow solver, were developed in a small-scale distributed computing environment. As a result, the validation of the NCC beta version as a whole was quite limited. Current effort has been focused on the validation of the integrated code and the evaluation/optimization of its overall performance on large-scale parallel systems.

Developmentally sensitive cognitive behavioral therapy for adolescent school refusal: rationale and case illustration.

PubMed

Heyne, David; Sauter, Floor M; Ollendick, Thomas H; Van Widenfelt, Brigit M; Westenberg, P Michiel

2014-06-01

School refusal can be difficult to treat and the poorest treatment response is observed among older school refusers. This poor response may be explained, in part, by the impact of developmental transitions and tasks upon the young person, their family, and the treatment process. This paper describes and illustrates the @school program, a cognitive behavioral therapy (CBT) designed to promote developmental sensitivity when planning and delivering treatment for adolescent school refusal. Treatment is modularized and it incorporates progress reviews, fostering a planned yet flexible approach to CBT. The treatment is illustrated in the case of Allison, a 16-year-old female presenting with major depressive disorder and generalized anxiety disorder. A case formulation guided the selection, sequencing, and pacing of modules targeting predisposing, precipitating, perpetuating, and protective factors. Treatment comprised 16 sessions with Allison (interventions addressing depression, anxiety, and school attendance) and 15 concurrent sessions with her mother (strategies to facilitate an adolescent's school attendance), including two sessions with Allison and mother together (family communication and problem solving to reduce parent-adolescent conflict). Two treatment-related consultations were also conducted with Allison's homeroom teacher. Allison's school attendance improved during the course of treatment. By post-treatment, there was a decrease in internalizing behavior, an increase in self-efficacy, and remission of depressive disorder and anxiety disorder. Clinically significant treatment gains were maintained at 2-month follow-up. Factors influencing outcome may include those inherent to the @school program together with less specific factors. Special consideration is given to parents' use of both authoritative and autonomy-granting approaches when helping an adolescent to attend school.

Gas turbine engines and transmissions for bus demonstration programs. Technical status report, 30 April 1979-31 July 1979

DOE Office of Scientific and Technical Information (OSTI.GOV)

Nigro, D.N.

1979-07-01

The quarterly status report covers the period from 30 April 1979 through 31 July 1979 and is a summary of DDA activities for the effort performed on the procurement and delivery of eleven (11) Allison GT 404-4 gas turbine engines and five (5) HT740CT and six (6) V730CT Allison automatic transmissions and the required associated software. The contract requires the delivery of eleven (11) Allison GT 404-4 Industrial Gas Turbine Engines and five (5) HT740CT and six (6) V730CT Allison Automatic Transmissions for the Greyhound and Transit Coaches, respectively. In addition, software items such as cost reports, technical reports, installationmore » drawings, acceptance test data and parts lists are required. A recent decision by the DOE will modify the build configuration for the last four (4) Transit Coach engines. It was decided by the DOE at a meeting in Washington, DC on March 28, 1979 with representatives from DDA, NASA/LeRC, JPL and Booz-Allen and Hamilton that these engines will be built with ceramic regenerators. (TFD)« less

Acoustics and Thrust of Separate Flow Exhaust Nozzles With Mixing Devices Investigated for High Bypass Ratio Engines

NASA Technical Reports Server (NTRS)

Saiyed, Naseem H.

2000-01-01

Typical installed separate-flow exhaust nozzle system. The jet noise from modern turbofan engines is a major contributor to the overall noise from commercial aircraft. Many of these engines use separate nozzles for exhausting core and fan streams. As a part of NASA s Advanced Subsonic Technology (AST) program, the NASA Glenn Research Center at Lewis Field led an experimental investigation using model-scale nozzles in Glenn s Aero-Acoustic Propulsion Laboratory. The goal of the investigation was to develop technology for reducing the jet noise by 3 EPNdB. Teams of engineers from Glenn, the NASA Langley Research Center, Pratt & Whitney, United Technologies Research Corporation, the Boeing Company, GE Aircraft Engines, Allison Engine Company, and Aero Systems Engineering contributed to the planning and implementation of the test.

Static tests of the propulsion system. [Propfan Test Assessment program

NASA Technical Reports Server (NTRS)

Withers, C. C.; Bartel, H. W.; Turnberg, J. E.; Graber, E. J.

1987-01-01

Advanced, highly-loaded, high-speed propellers, called propfans, are promising to revolutionize the transport aircraft industry by offering a 15- to 30-percent fuel savings over the most advanced turbofans without sacrificing passenger comfort or violating community noise standards. NASA Lewis Research Center and industry have been working jointly to develop the needed propfan technology. The NASA-funded Propfan Test Assessment (PTA) Program represents a key element of this joint program. In PTA, Lockheed-Georgia, working in concert with Hamilton Standard, Rohr Industries, Gulfstream Aerospace, and Allison, is developing a propfan propulsion system which will be mounted on the left wing of a modified Gulfstream GII aircraft and flight tested to verify the in-flight characteristics of a 9-foot diameter, single-rotation propfan. The propfan, called SR-7L, was designed and fabricated by Hamilton Standard under a separate NASA contract. Prior to flight testing, the PTA propulsion system was static tested at the Rohr Brown Field facility. In this test, propulsion system operational capability was verified and data was obtained on propfan structural response, system acoustic characteristics, and system performance. This paper reports on the results of the static tests.

Spacepower for Australias Security - Grand Strategy or Strategy of Grandeur

DTIC Science & Technology

2012-06-01

2000), 34–35; Also see Peter H Diamandis and Steven Kotler , Abundance: The Future Is Better Than You Think (New York: Free Press, 2012...Studies of Policy Decisions and Fiascoes (Boston: Houghton Mifflin, 1982), 4; Graham T Allison and Philip Zelikow, Essence of Decision: Explaining the...Ala.: Air University Press, 2009. Allison, Graham T, and Philip Zelikow. Essence of Decision: Explaining the Cuban Missile Crisis. New York

The Journal of Public Inquiry. Spring/Summer 2011

DTIC Science & Technology

2011-01-01

Debunking Myths and Suggesting Practices for Offices of Inspectors General Written by Inspectors General Allison Lerner and Steve Linick National...IPS+2008+Jobs+Study+Final_Report1.pdf 3) Christensen, C. “The Innovator’s Dilemma,” Harvard Business Press. 1997. 4) Jarvis , J. What Would Google Do...Suspension and Debarment Debunking Myths and Suggesting Practices for Offices of Inspectors General By Inspectors General Allison Lerner and Steve

Thermomechanical Fatigue Durability of T650-35/PMR-15 Sheet-Molding Compound Evaluated

NASA Technical Reports Server (NTRS)

Castelli, Michael G.

1999-01-01

High-performance polymer matrix composites (PMC's) continue to be the focus of a number of research efforts aimed at developing cost-effective, lightweight material alternatives for advanced aerospace and aeropropulsion applications. These materials not only offer significant advantages in specific stiffness and strength over their current metal counterparts, but they can be designed and manufactured to eliminate joints and fasteners by combining individual components into integral subassemblies, thus making them extremely attractive for commercial applications. With much emphasis on the low-cost manufacturing aspects of advanced composite structures, there is heightened interest in high-performance sheet-molding compounds (SMC's). Researchers at the NASA Lewis Research Center, in cooperation with the Allison Advanced Development Company, completed an investigation examining the use of T650-35/PMR-15 SMC for a midstage inner-vane endwall application within a gas turbine engine compressor. This component resides in the engine flow path and is subjected not only to high airflow rates, but also to elevated temperatures and pressures. This application is unique in that it represents a very aggressive use of high-performance SMC's, raising obvious concerns related to durability and property retention in the presence of microstructural damage. Therefore, it was necessary to evaluate the fatigue behavior and damage tolerance of this material subjected to a representative thermomechanical fatigue (TMF) mission-cycle loading spectrum.

United Nations - Divided States: Peacekeeping in the 1990S

DTIC Science & Technology

1993-12-01

Ireland, University of California Press, Berkely , Los Angeles & Oxford, 1990, p. 19-20. 157 transition of governments, or have become highly politicized...the organization had gained "a certain independent position, and that this tendency has led to the acceptance of an independent 5 2 Graham T. Allison ...New York, 1991. David A. Ablin & Marlowe Hood, ed., The Cambodian Agony, M.E. Sharpe, Inc., Armonk, New York, 1987. Graham T. Allison , Essence of

In Search of the Missing Link: Relating Destruction to Outcome In Airpower Application

DTIC Science & Technology

1994-06-01

thereafter.� See Graham T . Allison, �The Cuban Missile Crisis: A Case Study of Crisis Decision-making,� American Defense Policy, eds. John F. Reichart...Books: Allison, Graham T . Essence of Decision. Harvard: Harper Collins, 1971. _________. �The Cuban Missile Crisis: A Case Study of Crisis...adversary�s economic and military power. The vulnerability of an adversary�s transportation is based on the fact that transportation networks

Improving Navy Recruiting with the New Planned Resource Optimization Model With Experimental Design (PROM-WED)

DTIC Science & Technology

2017-03-01

RECRUITING WITH THE NEW PLANNED RESOURCE OPTIMIZATION MODEL WITH EXPERIMENTAL DESIGN (PROM-WED) by Allison R. Hogarth March 2017 Thesis...with the New Planned Resource Optimization Model With Experimental Design (PROM-WED) 5. FUNDING NUMBERS 6. AUTHOR(S) Allison R. Hogarth 7. PERFORMING...has historically used a non -linear optimization model, the Planned Resource Optimization (PRO) model, to help inform decisions on the allocation of

Flow Analysis of a Gas Turbine Low- Pressure Subsystem

NASA Technical Reports Server (NTRS)

Veres, Joseph P.

1997-01-01

The NASA Lewis Research Center is coordinating a project to numerically simulate aerodynamic flow in the complete low-pressure subsystem (LPS) of a gas turbine engine. The numerical model solves the three-dimensional Navier-Stokes flow equations through all components within the low-pressure subsystem as well as the external flow around the engine nacelle. The Advanced Ducted Propfan Analysis Code (ADPAC), which is being developed jointly by Allison Engine Company and NASA, is the Navier-Stokes flow code being used for LPS simulation. The majority of the LPS project is being done under a NASA Lewis contract with Allison. Other contributors to the project are NYMA and the University of Toledo. For this project, the Energy Efficient Engine designed by GE Aircraft Engines is being modeled. This engine includes a low-pressure system and a high-pressure system. An inlet, a fan, a booster stage, a bypass duct, a lobed mixer, a low-pressure turbine, and a jet nozzle comprise the low-pressure subsystem within this engine. The tightly coupled flow analysis evaluates aerodynamic interactions between all components of the LPS. The high-pressure core engine of this engine is simulated with a one-dimensional thermodynamic cycle code in order to provide boundary conditions to the detailed LPS model. This core engine consists of a high-pressure compressor, a combustor, and a high-pressure turbine. The three-dimensional LPS flow model is coupled to the one-dimensional core engine model to provide a "hybrid" flow model of the complete gas turbine Energy Efficient Engine. The resulting hybrid engine model evaluates the detailed interaction between the LPS components at design and off-design engine operating conditions while considering the lumped-parameter performance of the core engine.

Improving Undergraduates' Argumentative Group Essay Writing through Self-Assessment

ERIC Educational Resources Information Center

Fung, Yong Mei; Mei, Hooi Chee

2015-01-01

When writing an argumentative essay, writers develop and evaluate arguments to embody, initiate, or simulate various kinds of interpersonal and textual interaction for reader consideration (Wu & Allison, 2003). This is quite challenging for English as a second language (ESL) learners. To improve the quality of their writing, students need to…

Evaluation of Existing Aircraft Operator Data Bases

DTIC Science & Technology

1990-08-01

the Falcon F20, the CASA Model 212, the Lockheed LI011, and the Convair- Allison Model 580. A summary of the results of the inventory for each of the...was obtained from Allison , the engine manufacturer who did the conversions, and retained their original Model 340 and 440 serial numbers. Lundkvist... Berks RG13 4FJ England Phone: (06) 356-6929 Failure Analysis Associates 149 Commonwealth Drive Menlow Park, CA 94025 Phone: (415) 326-9400 Fax: (415

Frequency Comb Spectroscopy - From IR to XUV

DTIC Science & Technology

2015-06-09

time resolution of 25 s. Publications: [1] A. Cingöz, Yost, D. C. , Allison, T. K. , Ruehl, A. , Fermann, M. E. , Hartl , I. , and Ye, J...J. , Eikema, K. S. E. , Fermann, M. E. , Hartl , I. , and Ye, J. , “Full phase stabilization of a Yb:fiber femtosecond frequency comb via high...D. C. , Allison, T. K. , Ruehl, A. , Fermann, M. E. , Hartl , I. , and Ye, J. , “Direct frequency comb spectroscopy in the extreme ultraviolet”, Nature

The Reduction of Smoke Emissions from Allison T56 Engines

DTIC Science & Technology

1990-03-01

10 P.N. DoogoodD *Royal Australian Air Force _ Approved for public release. (C) COMMONWEALTH OF AUSITALIA 1990 MARCH 1990 This work is copyright. Apart...ALLISON T56 ENGINES by F.W. Skidmore D.R. Hunt * P.N. Doogood *Royal Australian Ar Force SUMMARY Aeronautical Research Laboratory (ARL) has been working ... work consisted of a literature survey, design and manufacture of a water tunnel model, water tunnel testing of various modifications to improve the

An Experimental and Theoretical Investigation of Optogalvanic Effects.

DTIC Science & Technology

1987-12-01

Discharge Plasmas" at Atholl Palace Hotel, Pitlochry, Scotland, June 23-July 5 (1985). Published in Radiative Processes in Discharge Plasmas, edited by J...and 8 are taken from Phelps.39 The temperature dependence of D is taken from Buckingham and Dalgarno, that of Y is taken from Allison, Browne and...1307 (1955). 40. R. A. Buckingham , and A. Dalgarno, Proc. Roy. Soc. (London) A213, 506 (1952). 41. D. C. Allison, J. C. Browne, and A. Dalgarno, Proc

PRDA-2 and 3 Brush Seal Development Programs at EG and G

NASA Technical Reports Server (NTRS)

Loewenthal, Robert G.

1996-01-01

EG&G Mechanical Components Technology Group R&D completed a Brush Seal Development Program under PRDA-2 in late 1992. We started the Advanced Brush Seal Development program, under PRDA-3, in 1993 and will complete it in 1996. Both programs have been funded by the United States Air Force. In the first program, we made significant gains in the area of tribopairs (bristle materials vs. shaft coatings) and the 'Low Hysteresis' design for brush seals. These were reported in two AIAA Propulsion Conference papers, and the 'Low Hysteresis' design has been patented. Seals were delivered for test in an Air Force demonstrator at Allison. In PRDA-3, goals are to increase the pressure sealing capability, and the surface speeds and temperatures at which brush seals can be used. We have conducted part of the design and testing and have tested brush seals successfully at more severe conditions than in the previous program. We are continuing with the program, and will complete it in time to furnish brush seals for an Air Force Demonstrator test in 1997.

Spatially-Resolved Characterization Techniques to Investigate Impact Damage in Ultra-High Performance Concretes

DTIC Science & Technology

2013-04-01

Concretes G eo te ch n ic al a n d S tr u ct u re s La b or at or y Robert D. Moser, Paul G. Allison, and Mei Q. Chandler April 2013 Approved...Impact Damage in Ultra-High Performance Concretes Robert D. Moser, Paul G. Allison, and Mei Q. Chandler Geotechnical and Structures Laboratory US...Portland Cement concrete (OPC) and Ultra-High Performance Concretes (UHPCs) under high-strain impact and penetration loads at lower length scales

Re-Vitalizing the First Year Class through Student Engagement and Discovery Learning

ERIC Educational Resources Information Center

Steuter, Erin; Doyle, Judith

2010-01-01

The first year course in Sociology at Mount Allison University introduced students to social issues via dynamic class interactions and assignments that are designed to build conceptual and applied skills. Developments to the course organization have maximized the opportunities for discovery learning and have made the class an enjoyable teaching…

AUTOMOTIVE DIESEL MAINTENANCE 2. UNIT VII, AUTOMATIC TRANSMISSIONS--ALLISON, TORQUMATIC SERIES 5960 AND 6060 (PART I).

ERIC Educational Resources Information Center

Human Engineering Inst., Cleveland, OH.

THIS MODULE OF A 25-MODULE COURSE IS DESIGNED TO DEVELOP AN UNDERSTANDING OF THE OPERATION AND MAINTENANCE OF SPECIFIC MODELS OF AUTOMATIC TRANSMISSIONS USED ON DIESEL POWERED VEHICLES. TOPICS ARE (1) GENERAL SPECIFICATION DATA, (2) OPTIONS FOR VARIOUS APPLICATIONS, (3) ROAD TEST INSTRUCTIONS, (4) IDENTIFICATION AND SPECIFICATION DATA, (5) ALLISON…

A Meta-Analysis of Peer-Mediated Interventions for Young Children with Autism Spectrum Disorders

ERIC Educational Resources Information Center

Zhang, Jie; Wheeler, John J.

2011-01-01

This meta-analysis investigated the efficacy of peer-mediated interventions for promoting social interactions among children from birth to eight years of age diagnosed with ASD. Forty-five single-subject design studies were analyzed and the effect sizes were calculated by the regression model developed by Allison and Gorman (1993). The overall…

Gas turbine engines and transmissions for bus demonstration programs. Technical status report, 31 October 1979-31 January 1980

DOE Office of Scientific and Technical Information (OSTI.GOV)

Nigro, D.N.

1980-02-01

Progress is reported on the procurement and delivery of 11 Allison GT 404-4 Industrial Gas Turbine Engines and 5 HT740CT and 6 V730CT Allison Automatic Transmissions for the Greyhound and Transit Coaches, respectively. Ceramic regenerators have been incorporated in the build configuration for last 4 Transit Coach engines. The 5 Greyhound Coach engines and the first 2 Transit Coach engines were built in the all-metal configuration. The Master Schedules for the program are presented.

Aircraft Engine Emissions Estimator

DTIC Science & Technology

1985-11-01

GE) 4 A-4 C-9A JT8D-9 (P&W) 2 A-5 C-12A PT6A-41 (P&W) 2 C-21A TFE731 -2 (GARRETT) 2 C-130A T 56-9 (ALLISON) 4 A-6 C-130B T 56-7 (ALLISON) 4 A-6 C-130...OA 0.52N MILITARY 1.06A 8.42A I.SA 0.2A 21.OA 0.67N TFE731 -2 IDLE (CA) APPROACH NO DATA AVAILABLE :NTERMED MILITARY * A-X represents the reference

AGT (Advanced Gas Turbine) technology project

NASA Technical Reports Server (NTRS)

1988-01-01

An overall summary documentation is provided for the Advanced Gas Turbine Technology Project conducted by the Allison Gas Turbine Division of General Motors. This advanced, high risk work was initiated in October 1979 under charter from the U.S. Congress to promote an engine for transportation that would provide an alternate to reciprocating spark ignition (SI) engines for the U.S. automotive industry and simultaneously establish the feasibility of advanced ceramic materials for hot section components to be used in an automotive gas turbine. As this program evolved, dictates of available funding, Government charter, and technical developments caused program emphases to focus on the development and demonstration of the ceramic turbine hot section and away from the development of engine and powertrain technologies and subsequent vehicular demonstrations. Program technical performance concluded in June 1987. The AGT 100 program successfully achieved project objectives with significant technology advances. Specific AGT 100 program achievements are: (1) Ceramic component feasibility for use in gas turbine engines has been demonstrated; (2) A new, 100 hp engine was designed, fabricated, and tested for 572 hour at operating temperatures to 2200 F, uncooled; (3) Statistical design methodology has been applied and correlated to experimental data acquired from over 5500 hour of rig and engine testing; (4) Ceramic component processing capability has progressed from a rudimentary level able to fabricate simple parts to a sophisticated level able to provide complex geometries such as rotors and scrolls; (5) Required improvements for monolithic and composite ceramic gas turbine components to meet automotive reliability, performance, and cost goals have been identified; (6) The combustor design demonstrated lower emissions than 1986 Federal Standards on methanol, JP-5, and diesel fuel. Thus, the potential for meeting emission standards and multifuel capability has been initiated; (7) Small turbine engine aerodynamic and mechanical design capability has been initiated; and (8) An infrastructure of manpower, facilities, materials, and fabrication capabilities has been established which is available for continued development of ceramic component technology in gas turbine and other heat engines.

Wave-Rotor-Enhanced Gas Turbine Engine Demonstrator

NASA Technical Reports Server (NTRS)

Welch, Gerard E.; Paxson, Daniel E.; Wilson, Jack; Synder, Philip H.

1999-01-01

The U.S. Army Research Laboratory, NASA Glenn Research Center, and Rolls-Royce Allison are working collaboratively to demonstrate the benefits and viability of a wave-rotor-topped gas turbine engine. The self-cooled wave rotor is predicted to increase the engine overall pressure ratio and peak temperature by 300% and 25 to 30%. respectively, providing substantial improvements in engine efficiency and specific power. Such performance improvements would significantly reduce engine emissions and the fuel logistics trails of armed forces. Progress towards a planned demonstration of a wave-rotor-topped Rolls-Royce Allison model 250 engine has included completion of the preliminary design and layout of the engine, the aerodynamic design of the wave rotor component and prediction of its aerodynamic performance characteristics in on- and off-design operation and during transients, and the aerodynamic design of transition ducts between the wave rotor and the high pressure turbine. The topping cycle increases the burner entry temperature and poses a design challenge to be met in the development of the demonstrator engine.

Texas after Tropical Storm Allison (bands 2,1,3 in R,G,B)

NASA Technical Reports Server (NTRS)

2002-01-01

This MODIS image of Texas (left), Oklahoma (top left), Louisiana (bottom right) and Arkansas (upper right) makes use of band combinations (groups of wavelengths) that make water stand out against land. In this image, the dark blue/black squiggles indicate water. The bright green area along the Texas coast is Galveston Bay, southeast of Houston. Houston was devastated in the past week from the rains from Tropical Storm Allison. The brightness of the Bay may be due to sediment runoff from all the floodwaters. Credit: Jacques Descloitres, MODIS Land Rapid Response Team

Gas turbine engines and transmissions for bus demonstration program

DOE Office of Scientific and Technical Information (OSTI.GOV)

Nigro, D.N.

1981-11-01

This final report is to fulfill the contractural requirements of Contract DE-AC02-78CS54867 which required the delivery of 11 Allison GT 404-4 Industrial Gas Turbine Engines and five HT740CT and six V730CT Allison Automatic Transmissions for the Greyhound and Transit Coaches, respectively. In addition, software items such as cost reports, technical reports, installation drawings, acceptance test data and parts lists were required. Engine and transmission deliveries were completed with shipment of the last power package on 11 April 1980. Software items were submitted when required during the performance period of this contract.

Rapid Measurement of Emissions From Military Aircraft Turbine Engines by Downstream Extractive Sampling of Aircraft on the Ground: Results for C-130 and F-15 Aircraft (POSTPRINT)

DTIC Science & Technology

2009-02-01

four Allison T56 -A-15 turboprop engines which can generate in excess of 4500 horsepower at maximum power. This engine type uses a single entry, 14-stage...JP-8 JP-8 þ 100 Aircraft C-130H F-15 Engine Allison T56 P & W F100-PE-100 Composition (Vol %) Aromatics 16.3 12.4 Alkenes 1.6 2.5 Alkanes 82.1 85.1...respectively. Results are shown for the lowest and highest throttle settings for each of the engine types. The intra-engine variability of two T56

Rapid assessment of household needs in the Houston area after Tropical Storm Allison.

PubMed

Waring, Stephen C; Reynolds, Kaye M; D'Souza, Gypsyamber; Arafat, Raouf R

2002-09-01

Tropical Storm Allison, which hit landfall near Galveston, Texas, on June 5, 2001, caused the most severe flood-related damage ever recorded in the Houston metropolitan area. The main goal of the public health response to tropical storm Allison was to evaluate the immediate health needs of the community. To estimate damage and household needs, we conducted a rapid needs assessment in the areas most affected by flooding with use of a modified cluster sampling method facilitated by Geographical Information Systems methodology. A total of 420 households participated in the survey, 210 each from the 2 sampling areas. We found a 4-fold increase in illness among persons living in flooded homes compared with those living in nonflooded homes. These findings suggest a need for rapid resolution of flood-related damage and the possibility that residents should seek temporary housing during clean-up and repair. In addition, we obtained reliable estimates of damage and household needs to help guide relief efforts. The findings underscore the usefulness of a rapid-needs assessment as a tool to identify actual health threats and to facilitate delivery of resources to those with the greatest and most immediate need.

Index of Oral Histories Relating to Naval Research, Development, and Acquisition

DTIC Science & Technology

1992-07-01

various backgrounds. At the Manhattan Project- Los Alamos , Parsons contributed "common sense" and was probably second in command. He and Oppenheimer were...Mentioned: Groves, LTG Leslie Oppenheimer , Dr. Robert Parsons, RADM William 5 58 Institutions: Los Alamos Laboratory Naval Ordnance Laboratory... TECHNICAL INFORMATION CENTER 92 1 *" (! 01 9226761 PREFACE In November 1984 my predecessor, Dr. David K. Allison, published an "Index of Oral Histories

Research Data Acquired in World-Class, 60-atm Subsonic Combustion Rig

NASA Technical Reports Server (NTRS)

Lee, Chi-Ming; Wey, Changlie

1999-01-01

NASA Lewis Research Center's new, world-class, 60-atmosphere (atm) combustor research facility, the Advanced Subsonic Combustion Rig (ASCR), is in operation and producing highly unique research data. Specifically, data were acquired at high pressures and temperatures representative of future subsonic engines from a fundamental flametube configuration with an advanced fuel injector. The data acquired include exhaust emissions as well as pressure and temperature distributions. Results to date represent an improved understanding of nitrous oxide (NOx) formation at high pressures and temperatures and include an NOx emissions reduction greater than 70 percent with an advanced fuel injector at operating pressures to 800 pounds per square inch absolute (psia). ASCR research is an integral part of the Advanced Subsonic Technology (AST) Propulsion Program. This program is developing critical low-emission combustion technology that will result in the next generation of gas turbine engines producing 50 to 70 percent less NOx emissions in comparison to 1996 International Civil Aviation Organization (ICAO) limits. The results to date indicate that the AST low-emission combustor goals of reducing NOx emissions by 50 to 70 percent are feasible. U.S. gas turbine manufacturers have started testing the low-emissions combustors at the ASCR. This collaborative testing will enable the industry to develop low-emission combustors at the high pressure and temperature conditions of future subsonic engines. The first stage of the flametube testing has been implemented. Four GE Aircraft Engines low-emissions fuel injector concepts, three Pratt & Whitney concepts, and two Allison concepts have been tested at Lewis ASCR facility. Subsequently, the flametube was removed from the test stand, and the sector combustor was installed. The testing of low emissions sector has begun. Low-emission combustors developed as a result of ASCR research will enable U.S. engine manufacturers to compete on a worldwide basis by producing environmentally acceptable commercial engines.

Erosion Resistant Coatings for Polymer Matrix Composites in Propulsion Applications

NASA Technical Reports Server (NTRS)

Sutter, James K.; Naik, Subhash K.; Horan, Richard; Miyoshi, Kazuhisa; Bowman, Cheryl; Ma, Kong; Leissler, George; Sinatra, Raymond; Cupp, Randall

2003-01-01

Polymer Matrix Composites (PMCs) offer lightweight and frequently low cost alternatives to other materials in many applications. High temperature PMCs are currently used in limited propulsion applications replacing metals. Yet in most cases, PMC propulsion applications are not in the direct engine flow path since particulate erosion degrades PMC component performance and therefore restricts their use in gas turbine engines. This paper compares two erosion resistant coatings (SANRES and SANPRES) on PMCs that are useful for both low and high temperature propulsion applications. Collaborating over a multi-year period, researchers at NASA Glenn Research Center, Allison Advanced Developed Company, and Rolls-Royce Corporation have optimized these coatings in terms of adhesion, surface roughness, and erosion resistance. Results are described for vigorous hot gas/particulate erosion rig and engine testing of uncoated and coated PMC fan bypass vanes from the AE 3007 regional jet gas turbine engine. Moreover, the structural durability of these coatings is described in long-term high cycle fatigue tests. Overall, both coatings performed well in all tests and will be considered for applications in both commercial and defense propulsion applications.

Characterisation of the PXIE Allison-type emittance scanner

DOE PAGES

D'Arcy, R.; Alvarez, M.; Gaynier, J.; ...

2016-01-26

An Allison-type emittance scanner has been designed for PXIE at FNAL with the goal of providing fast and accurate phase space reconstruction. The device has been modified from previous LBNL/SNS designs to operate in both pulsed and DC modes with the addition of water-cooled front slits. Extensive calibration techniques and error analysis allowed confinement of uncertainty to the <5% level (with known caveats). With a 16-bit, 1 MHz electronics scheme the device is able to analyse a pulse with a resolution of 1 μs, allowing for analysis of neutralisation effects. As a result, this paper describes a detailed breakdown ofmore » the R&D, as well as post-run analysis techniques.« less

Final Technical Report Overcoming Critical Barriers to U.S. Wind Power: A University-Industry Consortium

DOE Office of Scientific and Technical Information (OSTI.GOV)

Acker, Tom; Kipple, Allison

The objective of this project was to develop a curriculum module involving the design and simulation of a wind turbine generator. Dr. Allison Kipple, Assistant Professor of Electrical Engineering, led development of the module, employing graduate and undergraduate students, and Dr. Tom Acker served as project manager and principal investigator. This objective was achieved resulting in development of curricular materials, implementation and revision of the materials in EE 364, a Northern Arizona University electrical engineering course in “Fundamentals of Electromagnetics,” and via dissemination of the curricular materials to a broad community including other universities.

Advanced gearbox technology

NASA Technical Reports Server (NTRS)

Anderson, N. E.; Cedoz, R. W.; Salama, E. E.; Wagner, D. A.

1987-01-01

An advanced 13,000 HP, counterrotating (CR) gearbox was designed and successfully tested to provide a technology base for future designs of geared propfan propulsion systems for both commercial and military aircraft. The advanced technology CR gearbox was designed for high efficiency, low weight, long life, and improved maintainability. The differential planetary CR gearbox features double helical gears, double row cylindrical roller bearings integral with planet gears, tapered roller prop support bearings, and a flexible ring gear and diaphragm to provide load sharing. A new Allison propfan back-to-back gearbox test facility was constructed. Extensive rotating and stationary instrumentation was used to measure temperature, strain, vibration, deflection and efficiency under representative flight operating conditions. The tests verified smooth, efficient gearbox operation. The highly-instrumented advanced CR gearbox was successfully tested to design speed and power (13,000 HP), and to a 115 percent overspeed condition. Measured CR gearbox efficiency was 99.3 percent at the design point based on heat loss to the oil. Tests demonstrated low vibration characteristics of double helical gearing, proper gear tooth load sharing, low stress levels, and the high load capacity of the prop tapered roller bearings. Applied external prop loads did not significantly affect gearbox temperature, vibration, or stress levels. Gearbox hardware was in excellent condition after the tests with no indication of distress.

Metopic ridge

MedlinePlus

... exam and ask questions about the child's medical history. Tests may include: Head CT scan Skull ... Grainger & Allison's Diagnostic Radiology: A Textbook of Medical Imaging . 6th ed. Philadelphia, PA: Elsevier ...

Allison V–1710 Engine on a Dynamotor Stand in the Engine Research Building

NASA Image and Video Library

1943-03-21

The first research assignment specifically created for the National Advisory Committee for Aeronautics’ (NACA) new Aircraft Engine Research Laboratory was the integration of a supercharger into the Allison V–1710 engine. The military was relying on the liquid-cooled V–1710 to power several types of World War II fighter aircraft and wanted to improve the engine's speed and altitude performance. Superchargers forced additional airflow into the combustion chamber, which increased the engine’s performance resulting in greater altitudes and speeds. They also generated excess heat that affected the engine cylinders, oil, and fuel. In 1943 the military tasked the new Aircraft Engine Research Laboratory to integrate the supercharger, improve the cooling system, and remedy associated engine knock. Three Allison engines were provided to the laboratory’s research divisions. One group was tasked with improving the supercharger performance, another analyzed the effect of the increased heat on knock in the fuel, one was responsible for improving the cooling system, and another would install the new components on the engine with minimal drag penalties. The modified engines were installed on this 2000-horsepower dynamotor stand in a test cell within the Engine Research Building. The researchers could run the engine at different temperatures, fuel-air ratios, and speeds. When the modifications were complete, the improved V–1710 was flight tested on a P–63A Kingcobra loaned to the NACA for this project.

Single-Transducer, Ultrasonic Imaging Method for High-Temperature Structural Materials Eliminates the Effect of Thickness Variation in the Image

NASA Technical Reports Server (NTRS)

Roth, Don J.

1998-01-01

NASA Lewis Research Center's Life Prediction Branch, in partnership with Sonix, Inc., and Cleveland State University, recently advanced the development of, refined, and commercialized an advanced nondestructive evaluation (NDE) inspection method entitled the Single Transducer Thickness-Independent Ultrasonic Imaging Method. Selected by R&D Magazine as one of the 100 most technologically significant new products of 1996, the method uses a single transducer to eliminate the superimposing effects of thickness variation in the ultrasonic images of materials. As a result, any variation seen in the image is due solely to microstructural variation. This nondestructive method precisely and accurately characterizes material gradients (pore fraction, density, or chemical) that affect the uniformity of a material's physical performance (mechanical, thermal, or electrical). Advantages of the method over conventional ultrasonic imaging include (1) elimination of machining costs (for precision thickness control) during the quality control stages of material processing and development and (2) elimination of labor costs and subjectivity involved in further image processing and image interpretation. At NASA Lewis, the method has been used primarily for accurate inspections of high temperature structural materials including monolithic ceramics, metal matrix composites, and polymer matrix composites. Data were published this year for platelike samples, and current research is focusing on applying the method to tubular components. The initial publicity regarding the development of the method generated 150 requests for further information from a wide variety of institutions and individuals including the Federal Bureau of Investigation (FBI), Lockheed Martin Corporation, Rockwell International, Hewlett Packard Company, and Procter & Gamble Company. In addition, NASA has been solicited by the 3M Company and Allison Abrasives to use this method to inspect composite materials that are manufactured by these companies.

Neck x-ray

MedlinePlus

... Van Goethem JW, Parizel PM. Imaging techniques and anatomy. In: Adam A, Dixon AK, Gillard JH, Schaefer-Prokop CM, eds. Grainger & Allison's Diagnostic Radiology: A Textbook of Medical Imaging . 6th ed. Philadelphia, PA: Elsevier ...

Concentrating Solar Power Projects - Solaben 6 | Concentrating Solar Power

Science.gov Websites

: Operational Start Year: 2013 Do you have more information, corrections, or comments? Background Technology MWh/yr (Estimated) Contact(s): Allison Lenthall Company: Abengoa Solar Start Production: August 2013

Concentrating Solar Power Projects - Solaben 1 | Concentrating Solar Power

Science.gov Websites

: Operational Start Year: 2013 Do you have more information, corrections, or comments? Background Technology MWh/yr (Estimated) Contact(s): Allison Lenthall Company: Abengoa Solar Start Production: August 2013

Compilation of Water-Resources Data and Hydrogeologic Setting for the Allison Woods Research Station in Iredell County, North Carolina, 2005-2008

USGS Publications Warehouse

Huffman, Brad A.; Abraham, Joju

2010-01-01

Water-resources data were collected to describe the hydrologic conditions at the Allison Woods research station near Statesville, North Carolina, in the Piedmont Physiographic Province of North Carolina. Data collected by the U.S. Geological Survey and the North Carolina Department of Environment and Natural Resources, Division of Water Quality, from April 2005 through September 2008 are presented in this report. Data presented include well-construction characteristics and periodic groundwater-level measurements for 29 wells, borehole geophysical logs for 8 wells, hourly groundwater-level measurements for 5 wells, continuous water-quality measurements for 3 wells, periodic water-quality samples for 12 wells and 1 surface-water station, slug-test results for 11 wells, and shallow groundwater-flow maps. In addition, the geology and hydrogeology at the site are summarized.

Alternative Fuel Vehicle Publications | Transportation Research | NREL

Science.gov Websites

from a Fleet of Class 6 Trucks Operating on Gas-to-Liquid Fuel and Catalyzed Diesel Particle Filters Particle Filters. Teresa Alleman, Leslie Eudy, Matt Miyasato, Adewale Oshinuga, Scott Allison, Tom Corcoran

Interim Evaluation Results from New Flyer/Allison Hybrid Buses at King County Metro: Preprint

DOE Office of Scientific and Technical Information (OSTI.GOV)

Chandler, K.; Eberts, E.; Eudy, L.

2005-05-01

This paper prepared for the 2005 American Public Transportation Association Bus & Paratransit Conference discusses NREL/DOE evaluation of hybrid electric articulated transit buses operated by King County Metro.

Concentrating Solar Power Projects - Solacor 2 | Concentrating Solar Power

Science.gov Websites

Status: Operational Start Year: 2012 Do you have more information, corrections, or comments? Background : 100,000 MWh/yr (Estimated) Contact(s): Allison Lenthall Company: Abengoa Solar Start Production: March 9

Concentrating Solar Power Projects - Solaben 2 | Concentrating Solar Power

Science.gov Websites

Status: Operational Start Year: 2012 Do you have more information, corrections, or comments? Background : 100,000 MWh/yr (Estimated) Contact(s): Allison Lenthall Company: Abengoa Solar Start Production: October

Concentrating Solar Power Projects - Solacor 1 | Concentrating Solar Power

Science.gov Websites

Status: Operational Start Year: 2012 Do you have more information, corrections, or comments? Background : 100,000 MWh/yr (Estimated) Contact(s): Allison Lenthall Company: Abengoa Solar Start Production: February

Concentrating Solar Power Projects - Solaben 3 | Concentrating Solar Power

Science.gov Websites

Status: Operational Start Year: 2012 Do you have more information, corrections, or comments? Background : 100,000 MWh/yr (Estimated) Contact(s): Allison Lenthall Company: Abengoa Solar Start Production: June

jsc2017e049146

NASA Image and Video Library

2017-04-24

jsc2017e049146 (April 24, 2017) --- Johnson Space Center employees and Center Director watch President Donald Trump call Peggy Whitson on space station for her record-breaking stay aboard the International Space Station. (Photo Credit: NASA/Allison Bills)

jsc2017e049148

NASA Image and Video Library

2017-04-24

jsc2017e049148 (April 24, 2017) --- Johnson Space Center employees and Center Director watch President Donald Trump call Peggy Whitson on space station for her record-breaking stay aboard the International Space Station. (Photo Credit: NASA/Allison Bills)

Dry ultralow NO{sub x} Green Thumb combustor for Allison`s 501-K series industrial engines

DOE Office of Scientific and Technical Information (OSTI.GOV)

Puri, R.; Stansel, D.M.; Smith, D.A.

1997-01-01

This paper describes the progress made in developing an external ultralow oxides of nitrogen (NO{sub x}) Green Thumb combustor for the Allison Engine Company`s 501-K series engines. A lean premixed approach is being pursued to meet the emissions goals of 9 ppm NO{sub x}, 50 ppm carbon monoxide (CO), and 10 ppm unburned hydrocarbon (UHC). Several lean premixed (LPM) module configurations were identified computationally for the best NO{sub x}-CO trade-off by varying the location of fuel injection and the swirl angle of the module. These configurations were fabricated and screened under atmospheric conditions by direct visualization through a quartz liner;more » measurement of the stoichiometry at lean blow out (LBO); measurement of the fuel-air mixing efficiency at the module exit; and emissions measurements at the combustor exit, as well as velocity measurements. The influence of linear residence time on emissions was also examined. An LPM module featuring a radial inflow swirler demonstrated efficient fuel-air mixing and subsequent low NO{sub x} and CO production in extensive atmospheric bench and simulated engine testing. Measurements show the fuel concentration distribution at the module exit impacts the tradeoff between NO{sub x} and CO emissions. The effect of varying the swirl angle of the module also has a similar effect with the gains in NO{sub x} emissions reduction being traded for increased CO emissions. A uniform fuel-air mixture ({+-}2.5% azimuthal variation) at the exit of the module yields low NO{sub x} (5--10 ppm) at inlet conditions of 1 MPa ({approximately}10 atm) and temperatures as high as 616 K (650 F). The close proximity of adjacent modules and lower confinement in the liner most likely reduces the size of the recirculation zone associated with each module, thereby reducing the NO{sub x} formed therein. The CO emissions are probably lowered due to the reduced cool liner surface area per module resulting when several modules feed into the same liner.« less

MUSIC Successfully Launched from NASA Wallops

NASA Image and Video Library

2017-12-08

The Multiple User Suborbital Instrument Carrier or MUSIC payload was successfully launched at 9:50 a.m. today on a Terrier-Improved Malemute suborbital sounding rocket from NASA’s Wallops Flight Facility. The payload flew to approximately 115 miles apogee and preliminary analysis shows good data was received. Payload recovery is in progress. The next launch from Wallops is between 7 and 10 a.m. EST, Monday, March 7. Three space technology payloads will be carried on a Terrier-Improved Orion suborbital sounding rocket. Credit: NASA/Wallops/Allison Stancil NASA image use policy. NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission. Follow us on Twitter Like us on Facebook Find us on Instagram

The Development of A Squeeze Film Damper Parametric Model in the Context of a Fluid-structural Interaction Task

NASA Astrophysics Data System (ADS)

Novikov, Dmitrii K.; Diligenskii, Dmitrii S.

2018-01-01

The article considers the work of some squeeze film damper with elastic rings parts. This type of damper is widely used in gas turbine engines supports. Nevertheless, modern analytical solutions have a number of limitations. The article considers the behavior of simple hydrodynamic damping systems. It describes the analysis of fluid-solid interaction simulation applicability for the defying properties of hydrodynamic damper with elastic rings (“allison ring”). There are some recommendations on the fluid structural interaction analysis of the hydrodynamic damper with elastic rings.

76 FR 14396 - Change in Bank Control Notices; Acquisitions of Shares of a Bank or Bank Holding Company

Federal Register 2010, 2011, 2012, 2013, 2014

2011-03-16

.... Louis, Missouri 63166-2034: 1. The Greenwood Childrens' Trust, Brentwood, Tennessee, with Jane Allison Crewse, Brentwood, Tennessee; Ann Greenwood Watson, Owensboro, Kentucky; Helen Virginia Futvoye, Jackson...

8. Historic American Buildings Survey PHOTOCOPY CA. 1916 OF SLEEPING ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

8. Historic American Buildings Survey PHOTOCOPY CA. 1916 OF SLEEPING PORCH, AT NORTH END CAPABLE OF SLEEPING SIX. Original in Collections of Marian College - James A. Allison Mansion, 3200 Coldspring Road, Indianapolis, Marion County, IN

Reliability Evaluation of V730 Transmission

DOT National Transportation Integrated Search

1982-10-01

The Detroit Diesel Allison V730 transmission is a heavy duty, automatic, 3-speed, hydraulic transmission, currently installed in full size (35' and 40') transit buses with transverse mounted rear engines. This report presents the general approach and...

Updated Reliability Evaluation of V730 Transmission

DOT National Transportation Integrated Search

1983-11-01

This report culminates a two-year review of factors concerning the reliability of the Detroit Diesel Allison V730 automatic three-speed transmission for urban transit buses. This report is a continuing examination of the transmission's reliability. M...

Gas turbine engines and transmissions for bus demonstration programs. Technical status report, 31 July 1979--31 October 1979

DOE Office of Scientific and Technical Information (OSTI.GOV)

Nigro, D.N.

1979-11-01

The report summarizes the DDA activities for the effort performed on the procurement and delivery of eleven Allison GT 404-4 gas turbine engines and five HT740CT and six V730CT Allison automatic transmissions and the required associated software. The contract requires the delivery of the engines and transmissions for the Greyhound and Transit Coaches, respectively. In addition, software items such as cost reports, technical reports, installation drawings, acceptance test data and parts lists are required. A recent decision by the DOE will modify the build configuration for the last four (4) Transit Coach engines. It was decided by the DOE atmore » a meeting in Washington, DC on March 28, 1979 with representatives from DDA, NASA/LeRC, JPL and Booz-Allen and Hamilton that these engines are to be built with ceramic regenerators. (TFD)« less

Transaction Costs and Cost Breaches in Major Defense Acquisition Programs

DTIC Science & Technology

2014-02-04

bases, schools, missile storage facilities, maintenance facilities, medical/ dental clinics, libraries, and military family housing (DAU, 2011b...AIM-9_Sidewinder Allison, P. D. (2001). Logistic regression using the SAS system. Cary , NC: SAS Institute. Angelis, D., Dillard, J., Franck, C

Composite Matrix Experimental Combustor

DTIC Science & Technology

1994-04-01

utilized zirconia powder prereacted with 12 weight-percent yt- tria stabilizer (12-YSZ) with good results. Subsequent investigations indicated that...YSZ. The choice of material for the ceramic layer also considered work at Allison using 6-8 w/o yttria-stabi- lized zirconia powder obtained from the

Understanding How Biomass Burning Impacts Climate Change

DOE Office of Scientific and Technical Information (OSTI.GOV)

Aiken, Allison

2016-09-27

Biomass burning in Africa is creating a plume that spreads across the Atlantic Ocean all the way to Brazil. Allison Aiken, a research scientist at Los Alamos National Laboratory, collects data about the black carbon aerosols within this plume and their impact on the environment to help improve global climate modeling. A leader in energy science, Los Alamos develops climate models in support of the Laboratory’s mission to strengthen the nation’s energy security. Allison’s work is part of FIDO, a field operations team funded by the Energy Department’s Office of Science’s ARM Climate Research Facility.

Design of a Competency Administration Toolset (CAT)

DTIC Science & Technology

2017-03-01

Distribution is unlimited. DESIGN OF A COMPETENCY ADMINISTRATION TOOLSET (CAT) by David Cudd, Justin Letwinsky, Allison Moon, David Rodriguez, Blake......processing, which is perceived to be inefficient in both time and cost. The purpose of this systems engineering project was to design a web-based system

76 FR 14684 - Call for Nominations for Resource Advisory Councils

Federal Register 2010, 2011, 2012, 2013, 2014

2011-03-17

... CONTACT: Allison Sandoval, U.S. Department of the Interior, Bureau of Land Management, Correspondence...-74294. SUPPLEMENTARY INFORMATION: The Federal Land Policy and Management Act (FLPMA) (43 U.S.C. 1739... information nomination form; and --Any other information that addresses the nominee's qualifications...

Analysis of an Attenuator Artifact in an Experimental Attack by Gunn-Allison-Abbott Against the Kirchhoff-Law-Johnson-Noise (KLJN) Secure Key Exchange System

NASA Astrophysics Data System (ADS)

Kish, Laszlo B.; Gingl, Zoltan; Mingesz, Robert; Vadai, Gergely; Smulko, Janusz; Granqvist, Claes-Göran

2015-12-01

A recent paper by Gunn-Allison-Abbott (GAA) [L. J. Gunn et al., Scientific Reports 4 (2014) 6461] argued that the Kirchhoff-law-Johnson-noise (KLJN) secure key exchange system could experience a severe information leak. Here we refute their results and demonstrate that GAA's arguments ensue from a serious design flaw in their system. Specifically, an attenuator broke the single Kirchhoff-loop into two coupled loops, which is an incorrect operation since the single loop is essential for the security in the KLJN system, and hence GAA's asserted information leak is trivial. Another consequence is that a fully defended KLJN system would not be able to function due to its built-in current-comparison defense against active (invasive) attacks. In this paper we crack GAA's scheme via an elementary current-comparison attack which yields negligible error probability for Eve even without averaging over the correlation time of the noise.

Boundless Opportunity

ERIC Educational Resources Information Center

Schaffhauser, Dian

2009-01-01

The easy availability of both web-based communication tools and classroom internet access presents teachers with myriad ways to engage their students in projects with kids all over the globe. Two teachers--English teacher Hagit Goldstein in Israel and Spanish teacher Allison Baugher in the US--were connecting students through an online classroom…

77 FR 16163 - Nondiscrimination on the Basis of Disability by Public Accommodations and in Commercial...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-03-20

...; Swimming Pools AGENCY: Civil Rights Division, Department of Justice. ACTION: Final rule. SUMMARY: By this.... FOR FURTHER INFORMATION CONTACT: Allison Nichol, Chief, Disability Rights Section, Civil Rights... Rights Division published a technical assistance document entitled ``ADA 2010 Revised Requirements...

HOME ENVIRONMENT AND CHILDHOOD ASTHMA IN A RURAL IOWA COUNTY

EPA Science Inventory

HOME ENVIRONMENT AND CHILDHOOD ASTHMA IN A RURAL IOWA COUNTY
Erik R. Svendsen*?, Stephen J. Reynolds*?, James A. Merchant*, Allison L. Naleway*?, Ann M. Stromquist*, Peter S. Thorne*.
*University of Iowa College of Public Health, Iowa City, IA ?Current: USEPA RTP, NC ?Curre...

Manufacturing Methods and Technology Project Summary Reports

DTIC Science & Technology

1983-06-01

Proposal will be prepared by Solar Turbines, Inc. for introduction of cast titanium impellers into T62T-40 production. Detroit Diesel Allison will...microprocessor con- trol, RS 232 serial zommunications ports, binary I/O ports, floppy disk mass storage and cor.-rol panal . A component pickup

Erosion Coatings for High-Temperature Polymer Composites: A Collaborative Project With Allison Advanced Development Company

NASA Technical Reports Server (NTRS)

Sutter, James K.

2000-01-01

The advantages of replacing metals in aircraft turbine engines with high-temperature polymer matrix composites (PMC's) include weight savings accompanied by strength improvements, reduced part count, and lower manufacturing costs. Successfully integrating high-temperature PMC's into turbine engines requires several long-term characteristics. Resistance to surface erosion is one rarely reported property of PMC's in engine applications because PMC's are generally softer than metals and their erosion resistance suffers. Airflow rates in stationary turbine engine components typically exceed 2.3 kg/sec at elevated temperatures and pressures. In engine applications, as shown in the following photos, the survivability of PMC components is clearly a concern, especially when engine and component life-cycle requirements become longer. Although very few publications regarding the performance of erosion coatings on PMC's are available particularly in high-temperature applications the use of erosion-resistant coatings to significantly reduce wear on metallic substrates is well documented. In this study initiated by the NASA Glenn Research Center at Lewis Field, a low-cost (less than $140/kg) graphite-fiber-reinforced T650 35/PMR 15 sheet-molding compound was investigated with various coatings. This sheet-molding compound has been compression molded into many structurally complicated components, such as shrouds for gas turbine inlet housings and gearboxes. Erosion coatings developed for PMC s in this study consisted of a two-layered system: a bondcoat sprayed onto a cleaned PMC surface, followed by an erosion-resistant, hard topcoat sprayed onto the bondcoat as shown in following photomicrograph. Six erosion coating systems were evaluated for their ability to withstand harsh thermal cycles, erosion resistance (ASTM G76 83 "Standard Practice for Conducting Erosion Tests by Solid Particle Impingement Using Gas Jets") using Al2O3, and adhesion to the graphite fiber polyimide composite (ASTM D 4541 95 "Pull Off Strength of Coatings"). Glenn and Allison Advanced Development Company collaborated to optimize erosion coatings for gas turbine fan and compressor applications. All the coating systems survived aggressive thermal cycling without spalling. During erosion tests (see the final photo), the most promising coating systems tested had Cr3C2-NiCr and WC-Co as the hard topcoats. In all cases, these coating systems performed significantly better than that with a TiN hard topcoat. When material depth (thickness) loss is considered, the Cr3C2-NiCr and WC-Co coating systems provided, on average, an erosion resistance 8.5 times greater than that for the uncoated PMR 15/T650 35 composite. Similarly, Cr3C2-NiCr and WC-Co coating systems adhered to the PMC substrate during tensile tests significantly better than systems containing a TiN topcoat. Differences in topcoats of Cr3C2-NiCr and WC-Co were determined by considering issues such as cost and environmental impact. The preferred erosion-resistant coating system for PMR 15/T650 35 has WC-Co as the hard topcoat. This system provides the following benefits in comparison to the coating system with Cr3C2-NiCr topcoat: lower powder material cost (15 to 20 percent), environmentally friendly materials (Cr3C2-NiCr is hazardous), and higher deposition yield (10 to 15 percent), which results in less waste.

Updating The Navy’s Recruit Quality Matrix: An Analysis of Educational Credentials and the Success of First-Term Sailors

DTIC Science & Technology

2004-03-01

Allison , Logistic Regression: Using the SAS System (Cary, NC: SAS Institute, Inc, 2001), 57. 23 using the likelihood ratio that SAS generates...21, respectively. 33 Jesse M. Rothstein, College Performance Predictions and the SAT ( Berkely , CA: UC

75 FR 65645 - Notice Reopening the Call for Nominations for the New Mexico Resource Advisory Councils

Federal Register 2010, 2011, 2012, 2013, 2014

2010-10-26

... INFORMATION CONTACT: Allison Sandoval, Bureau of Land Management, Correspondence, International, and Advisory... variety of factors, including training, experience, and knowledge of the geographical area of the RAC... Office will issue a press release simultaneously with this notice, providing additional information for...

The Creative Child

ERIC Educational Resources Information Center

Leader, Wendy

2012-01-01

Jen and Michael agreed that it felt like a mixed blessing when the kindergarten teacher told them she thought their daughter was "very creative." The teacher had commented on Allison's love of dramatic and imaginative play, her bold and expressive artwork, her knack for solving problems with numbers and shapes, and her delight in finding…

77 FR 42722 - Copper Valley Electric Association; Notice of Updated Environmental Analysis Preparation Schedule

Federal Register 2010, 2011, 2012, 2013, 2014

2012-07-20

... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 13124-002] Copper Valley...: Original License Application. b. Project No.: 13124-002. c. Applicant: Copper Valley Electric Association (Copper Valley). d. Name of Project: Allison Creek Project. e. Location: On the south side of Port Valdez...

Accounting for the Relationship between Initial Status and Growth in Regression Models

ERIC Educational Resources Information Center

Kelly, Sean; Ye, Feifei

2017-01-01

Educational analysts studying achievement and other educational outcomes frequently encounter an association between initial status and growth, which has important implications for the analysis of covariate effects, including group differences in growth. As explicated by Allison (1990), where only two time points of data are available, identifying…

Variable Perceptions of Decision: An Operationalization of Four Models.

ERIC Educational Resources Information Center

Benjamin, Beverly P.; Kerchner, Charles T.

Decision-making and the models of decision-making that people carry in their minds were assessed. Participants in a public policy decision involving early childhood education were mapped onto four frequently used models of decision making: the rational, the bureaucratic, organizational process (Allison, 1971) and the garbage can or organized…

RESPIRATORY HEALTH OF RURAL AND FARM WOMEN IN THE KEOKUK COUNTY RURAL HEALTH STUDY

EPA Science Inventory

RESPIRATORY HEALTH OF RURAL AND FARM WOMEN IN THE KEOKUK COUNTY RURAL HEALTH STUDY
Allison L. Naleway*, Nancy L. Sprince?, Erik R. Svendsen?, Ann M. Stromquist?, James A. Merchant?
*Marshfield Medical Research and Education Foundation, Marshfield, WI; ?University of Iowa Co...

Pollution and Climate Change

ERIC Educational Resources Information Center

Larr, Allison S.; Neidell, Matthew

2016-01-01

Childhood is a particularly sensitive time when it comes to pollution exposure. Allison Larr and Matthew Neidell focus on two atmospheric pollutants--ozone and particulate matter--that can harm children's health in many ways. Ozone irritates the lungs, causing various respiratory symptoms; it can also damage the lung lining or aggravate lung…

Analytical methods to predict liquid congealing in ram air heat exchangers during cold operation

NASA Astrophysics Data System (ADS)

Coleman, Kenneth; Kosson, Robert

1989-07-01

Ram air heat exchangers used to cool liquids such as lube oils or Ethylene-Glycol/water solutions can be subject to congealing in very cold ambients, resulting in a loss of cooling capability. Two-dimensional, transient analytical models have been developed to explore this phenomenon with both continuous and staggered fin cores. Staggered fin predictions are compared to flight test data from the E-2C Allison T56 engine lube oil system during winter conditions. For simpler calculations, a viscosity ratio correction was introduced and found to provide reasonable cold ambient performance predictions for the staggered fin core, using a one-dimensional approach.

University Curricula in the Marine Sciences and Related Fields. Academic Years 1969-70 and 1970-71.

DTIC Science & Technology

1971-01-01

Associate Professor Krause , Dale C., Associate Professor 112 McMaster, Robert L., Ph.D., Associate Professor Smayda, Theodore J., Dr., Philos...Associate Professor of Zoology Division of Physical Sciences Allison, Edwin C., Ph.D., Professor of Geology Berger, Wolfgang , Ph.D., Assistant Professor of

4. Historic American Buildings Survey PHOTOCOPY CA. 1916 OF FRENCH ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

4. Historic American Buildings Survey PHOTOCOPY CA. 1916 OF FRENCH ROOM LOOKING AT NORTH END OF ROOM. WALLS COVERED IN SILK WITH HAND- EMBROIDERED APPLIQUES. NOTE CARVINGS AND MOLDINGS IN WHITE GUM WOODWORK. FLOORS ARE PARQUET. Original in Collections of Marian College - James A. Allison Mansion, 3200 Coldspring Road, Indianapolis, Marion County, IN

jsc2013e100869

NASA Image and Video Library

2013-12-24

DATE: 12-24-13 LOCATION: Bldg. 30 - FCR-1 (30M/231) SUBJECT: ISS Flight Controllers during Expedition 38's 2nd Spacewalk to repair a faulty ISS Coolant pump with Astronauts Rick Mastracchio and Mike Hopkins. Flight Director: Dina Contella, Capcom's Doug Wheelock, Aki Hoshide, and Lead U.S. Spacewalk Officer Allison Bolinger. PHOTOGRAPHER: Lauren Harnett

jsc2013e100852

NASA Image and Video Library

2013-12-24

DATE: 12-24-13 LOCATION: Bldg. 30 - FCR-1 (30M/231) SUBJECT: ISS Flight Controllers during Expedition 38's 2nd Spacewalk to repair a faulty ISS Coolant pump with Astronauts Rick Mastracchio and Mike Hopkins. Flight Director: Dina Contella, Capcom's Doug Wheelock, Aki Hoshide, and Lead U.S. Spacewalk Officer Allison Bolinger. PHOTOGRAPHER: Lauren Harnett

jsc2013e100718

NASA Image and Video Library

2013-12-21

Photo Date: 12/21/2013 Location: Bldg. 30 - FCR-1 (30M/231 Subject: ISS Flight Controllers during Expedition 38's 1st Spacewalk to repair a faulty ISS Coolant pump with Astronauts Rick Mastracchio and Mike Hopkins. Flight Director: Dina Contella, Capcom's Doug Wheelock, Aki Hoshide, and Lead U.S. Spacewalk Officer Allison Bolinger. Photographer: Robert Markowitz

jsc2013e100844

NASA Image and Video Library

2013-12-24

DATE: 12-24-13 LOCATION: Bldg. 30 - FCR-1 (30M/231) SUBJECT: ISS Flight Controllers during Expedition 38's 2nd Spacewalk to repair a faulty ISS Coolant pump with Astronauts Rick Mastracchio and Mike Hopkins. Flight Director: Dina Contella, Capcom's Doug Wheelock, Aki Hoshide, and Lead U.S. Spacewalk Officer Allison Bolinger. PHOTOGRAPHER: Lauren Harnett

jsc2013e100870

NASA Image and Video Library

2013-12-24

DATE: 12-24-13 LOCATION: Bldg. 30 - FCR-1 (30M/231) SUBJECT: ISS Flight Controllers during Expedition 38's 2nd Spacewalk to repair a faulty ISS Coolant pump with Astronauts Rick Mastracchio and Mike Hopkins. Flight Director: Dina Contella, Capcom's Doug Wheelock, Aki Hoshide, and Lead U.S. Spacewalk Officer Allison Bolinger. PHOTOGRAPHER: Lauren Harnett

jsc2013e100843

NASA Image and Video Library

2013-12-24

DATE: 12-24-13 LOCATION: Bldg. 30 - FCR-1 (30M/231) SUBJECT: ISS Flight Controllers during Expedition 38's 2nd Spacewalk to repair a faulty ISS Coolant pump with Astronauts Rick Mastracchio and Mike Hopkins. Flight Director: Dina Contella, Capcom's Doug Wheelock, Aki Hoshide, and Lead U.S. Spacewalk Officer Allison Bolinger. PHOTOGRAPHER: Lauren Harnett

jsc2013e100695

NASA Image and Video Library

2013-12-21

Photo Date: 12/21/2013 Location: Bldg. 30 - FCR-1 (30M/231 Subject: ISS Flight Controllers during Expedition 38's 1st Spacewalk to repair a faulty ISS Coolant pump with Astronauts Rick Mastracchio and Mike Hopkins. Flight Director: Dina Contella, Capcom's Doug Wheelock, Aki Hoshide, and Lead U.S. Spacewalk Officer Allison Bolinger. Photographer: Robert Markowitz

jsc2013e100867

NASA Image and Video Library

2013-12-24

DATE: 12-24-13 LOCATION: Bldg. 30 - FCR-1 (30M/231) SUBJECT: ISS Flight Controllers during Expedition 38's 2nd Spacewalk to repair a faulty ISS Coolant pump with Astronauts Rick Mastracchio and Mike Hopkins. Flight Director: Dina Contella, Capcom's Doug Wheelock, Aki Hoshide, and Lead U.S. Spacewalk Officer Allison Bolinger. PHOTOGRAPHER: Lauren Harnett

jsc2013e100827

NASA Image and Video Library

2013-12-24

DATE: 12-24-13 LOCATION: Bldg. 30 - FCR-1 (30M/231) SUBJECT: ISS Flight Controllers during Expedition 38's 2nd Spacewalk to repair a faulty ISS Coolant pump with Astronauts Rick Mastracchio and Mike Hopkins. Flight Director: Dina Contella, Capcom's Doug Wheelock, Aki Hoshide, and Lead U.S. Spacewalk Officer Allison Bolinger. PHOTOGRAPHER: Lauren Harnett

jsc2013e100873

NASA Image and Video Library

2013-12-24

DATE: 12-24-13 LOCATION: Bldg. 30 - FCR-1 (30M/231) SUBJECT: ISS Flight Controllers during Expedition 38's 2nd Spacewalk to repair a faulty ISS Coolant pump with Astronauts Rick Mastracchio and Mike Hopkins. Flight Director: Dina Contella, Capcom's Doug Wheelock, Aki Hoshide, and Lead U.S. Spacewalk Officer Allison Bolinger. PHOTOGRAPHER: Lauren Harnett

jsc2013e100855

NASA Image and Video Library

2013-12-24

DATE: 12-24-13 LOCATION: Bldg. 30 - FCR-1 (30M/231) SUBJECT: ISS Flight Controllers during Expedition 38's 2nd Spacewalk to repair a faulty ISS Coolant pump with Astronauts Rick Mastracchio and Mike Hopkins. Flight Director: Dina Contella, Capcom's Doug Wheelock, Aki Hoshide, and Lead U.S. Spacewalk Officer Allison Bolinger. PHOTOGRAPHER: Lauren Harnett

jsc2013e100685

NASA Image and Video Library

2013-12-21

Photo Date: 12/21/2013 Location: Bldg. 30 - FCR-1 (30M/231 Subject: ISS Flight Controllers during Expedition 38's 1st Spacewalk to repair a faulty ISS Coolant pump with Astronauts Rick Mastracchio and Mike Hopkins. Flight Director: Dina Contella, Capcom's Doug Wheelock, Aki Hoshide, and Lead U.S. Spacewalk Officer Allison Bolinger. Photographer: Robert Markowitz

jsc2013e100831

NASA Image and Video Library

2013-12-24

DATE: 12-24-13 LOCATION: Bldg. 30 - FCR-1 (30M/231) SUBJECT: ISS Flight Controllers during Expedition 38's 2nd Spacewalk to repair a faulty ISS Coolant pump with Astronauts Rick Mastracchio and Mike Hopkins. Flight Director: Dina Contella, Capcom's Doug Wheelock, Aki Hoshide, and Lead U.S. Spacewalk Officer Allison Bolinger. PHOTOGRAPHER: Lauren Harnett

The Influence of Gender, Age, and Ethnicity on Core Thermosensitivity and Responses to Cold

DTIC Science & Technology

2000-09-01

International Journal of Obesity Related Metabolic Disorders . 1998; 22: 215-221. 8. Gerace L, Aliprantis A, Russell M, Allison DB, Buhl KM et al...1978; 10: 250-255. Poehlman ET, Berke EM, Joseph JR, Gardner AW, Katzman-Rooks SM, Goran MI. Influence of aerobic capacity, body composition, and

5. Historic American Buildings Survey PHOTOCOPY CA. 1916 OF BREAKFAST ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

5. Historic American Buildings Survey PHOTOCOPY CA. 1916 OF BREAKFAST ROOM, LOOKING EAST. WHITE GUM WOODWORK CARRIES ROSE BRANCH DESIGN. NORTH WINDOWS GIVE VIEW OF LAKE; SOUTH WINDOWS OF ROLLING FRONT LAWN. FLOORS PARQUET. Original in Collections of Marian College - James A. Allison Mansion, 3200 Coldspring Road, Indianapolis, Marion County, IN

77 FR 12579 - Copper Valley Electric Association, Inc.; Notice of Extension of Time for Filing of Comments...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-03-01

..., Recommendations, and Prescriptions As stated in a letter dated January 27, 2012, in this proceeding by the..., recommendations, and prescriptions, and pursuant to the Notice of Application and Applicant- Prepared EA Accepted... Conditions, Recommendations, and Prescriptions issued on December 9, 2011, for the Allison Creek...

No Space for Girliness in Physics: Understanding and Overcoming the Masculinity of Physics

ERIC Educational Resources Information Center

Götschel, Helene

2014-01-01

Allison Gonsalves' article on "women doctoral students' positioning around discourses of gender and competence in physics" explores narratives of Canadian women physicists concerning their strategies to gain recognition as physicists. In my response to her rewarding and inspiring analysis I will reflect on her findings and arguments and…

Early Childhood Education: Pathways to Better Health. Preschool Policy Brief Issue 25

ERIC Educational Resources Information Center

Friedman-Krauss, Allison; Barnett, W. Steven

2013-01-01

The potential health benefits of early childhood education programs are quite large, especially for children living in poverty. In this report, authors Allison Friedman-Krauss and Steve Barnett set out the evidence regarding the short and long term health benefits to children from early childhood education programs, identify the features of…

Investigating Move Structure of English Applied Linguistics Research Article Discussions Published in International and Thai Journals

ERIC Educational Resources Information Center

Amnuai, Wirada; Wannaruk, Anchalee

2013-01-01

This study investigates the rhetorical move structure of English applied linguistic research article Discussions published in Thai and international journals. Two corpora comprising of 30 Thai Discussions and 30 international Discussions were analyzed using Yang & Allison's (2003) move model. Based on the analysis, both similarities and…

76 FR 18542 - Copper Valley Electric Association; Notice of Scoping Document 2 and Soliciting Scoping Comments...

Federal Register 2010, 2011, 2012, 2013, 2014

2011-04-04

... DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Project No. 13124-002] Copper Valley.... Applicant: Copper Valley Electric Association (Copper Valley) d. Name of Project: Allison Creek Project. e.... 791(a)-825(r). g. Applicant Contact: Robert A. Wilkinson, CEO, Copper Valley Electric Association, P.O...

Gender Performativity in Physics: Affordances or Only Constraints?

ERIC Educational Resources Information Center

Danielsson, Anna T.; Lundin, Mattias

2014-01-01

In this forum we engage in a dialogue with Allison Gonsalves's paper '"Physics and the girly girl--there is a contradiction somewhere": Doctoral students' positioning around discourses of gender and competence in physics'. In her paper Gonsalves uses a sociocultural approach to examine women doctoral students'…

Reference Correction to: Making Air Pollution Visible: A Tool for Promoting Environmental Health Literacy.

PubMed

Galkina Cleary, Ekaterina; Patton, Allison P; Wu, Hsin-Ching; Xie, Alan; Stubblefield, Joseph; Mass, William; Grinstein, Georges; Koch-Weser, Susan; Brugge, Doug; Wong, Carolyn

2017-12-20

[This corrects the article DOI: 10.2196/publichealth.7492.]. ©Ekaterina Galkina Cleary, Allison P Patton, Hsin-Ching Wu, Alan Xie, Joseph Stubblefield, William Mass, Georges Grinstein, Susan Koch-Weser, Doug Brugge, Carolyn Wong. Originally published in JMIR Public Health and Surveillance (http://publichealth.jmir.org), 20.12.2017.

A Statistical Model for Misreported Binary Outcomes in Clustered RCTs of Education Interventions

ERIC Educational Resources Information Center

Schochet, Peter Z.

2013-01-01

In randomized control trials (RCTs) of educational interventions, there is a growing literature on impact estimation methods to adjust for missing student outcome data using such methods as multiple imputation, the construction of nonresponse weights, casewise deletion, and maximum likelihood methods (see, for example, Allison, 2002; Graham, 2009;…

29 CFR 790.8 - “Principal” activities.

Code of Federal Regulations, 2010 CFR

2010-07-01

... liabilities and obligations under the Fair Labor Standards Act with respect to the “principal” activities his... determining hours worked under the Fair Labor Standards Act, as amended. 54 Although certain “preliminary” and.... Allison Co., Inc. v. Commissioner of Internal Revenue, 63 F. (2d) 553 (C.C.A. 8, 1933). 56 Cf. Armour & Co...

Talking about Math

ERIC Educational Resources Information Center

Hintz, Allison; Kazemi, Elham

2014-01-01

By simply asking students how they got the answer to a problem, math teachers can open the door to stimulating discussions in class. But how can they make sure those discussions promote mathematical understanding? Allison Hintz and Elham Kazemi explain that teachers need to know what the goal is for a discussion and plan accordingly. The authors…

"In the End, Our Message Weighs": "Blood Run," NAGPRA, and American Indian Identity

ERIC Educational Resources Information Center

Kelsey, Penelope; Carpenter, Cari M.

2011-01-01

In this article, the authors juxtapose Allison Hedge Coke's poetry collection "Blood Run" (2006) with the larger context in which Native American Graves Protection and Repatriation Act (NAGPRA) operates in order to investigate how "Blood Run" exposes the limitations of repatriation legislation, most significantly, how NAGPRA's…

Talking-Point: Books about Children with Learning Disabilities.

ERIC Educational Resources Information Center

Winsor, Pamela J. T.

1998-01-01

Four children's books on learning disabilities are profiled: "Trouble with School: A Family Story about Learning Disabilities" (Kathryn and Allison Dunn); "The Don't Give-up Kid" (Jeanne Gehret); "Keeping a Head in School: A Student's Book about Learning Abilities and Learning Disorders" (Mel Levine); and "What Do You Mean I Have a Learning…

High School Students' Preconceptions and Conceptions about Tropical Storm Allison.

ERIC Educational Resources Information Center

Belknap, Julia

Today, many people, with no personal experience of living through a tropical storm, reside in coastal regions in harms way. This population needs to be educated about storm risks. One good venue for this is the public school system. Science educators have concluded it is important to establish a knowledge base about the ways students think and…

Structural Validity of the Fear of Success Scale

ERIC Educational Resources Information Center

Metzler, Jonathan N.; Conroy, David E.

2004-01-01

Fear of success is a dispositional form of anxiety that can have harmful effects on athletes' motivation and performance; however, empirical research on fear of success in sport has been limited. Zuckerman and Allison's (1976) Fear of Success Scale (FOSS) has been the most popular fear of success measure used in sport, yet it is laden with…

76 FR 42127 - Change in Bank Control Notices; Acquisitions of Shares of a Bank or Bank Holding Company

Federal Register 2010, 2011, 2012, 2013, 2014

2011-07-18

... Memorial Drive, Kansas City, Missouri 64198-0001: 1. The Dana Hale Nelson Family Irrevocable Trust; the Lisa K. Hale Family Irrevocable Trust; the Dana Hale Nelson Irrevocable Trust for Allison Lesta Nelson; the Dana Hale Nelson Irrevocable Trust for Hayley Elizabeth Nelson; the Dana Hale Nelson Irrevocable...

Musings on Paul Peterson's "School Politics Chicago Style" and on the Utility of Decision-Making Models.

ERIC Educational Resources Information Center

Murphy, Jerome T.

In "School Politics Chicago Style," Paul E. Peterson is quick to credit Graham Allison's work. There are major differences between them, however. The authors reach different conclusions about the role of rationality and bargaining because they use different definitions, because of the influence of the dominant mode of thinking at the…

Implementation of Prolonged Exposure in the Army: Is Consultation Necessary for Effective Dissemination

DTIC Science & Technology

2014-10-01

University of Pennsylvania, Allison Chernov, was trained to assist with the study at this time. In September 2013, Sally Curtis and Kristen Butcher were...Ronald L CTR USARMY MEDCOM Hoover (US) <ronald.l.hoover.ctr@mail.mil>, Inna R CTR USARMY MEDCOM CDMRP Williams (US) <inna.r.williams.ctr@mail.mil

76 FR 58256 - Notice of Application Tendered for Filing With the Commission; Copper Valley Electric Association...

Federal Register 2010, 2011, 2012, 2013, 2014

2011-09-20

... Application Tendered for Filing With the Commission; Copper Valley Electric Association, Inc. Take notice that..., 2011. d. Applicant: Copper Valley Electric Association, Inc.. e. Name of Project: Allison Creek...: Federal Power Act 16 U.S.C. 791 (a)--825(r) . h. Applicant Contact: Robert A. Wilkinson, CEO, Copper...

Garden Variety Experiential Education: The "Material Turn" and Environmental Ethics

ERIC Educational Resources Information Center

Wallace, Allison B.

2016-01-01

Allison B. Wallace describes a seminar in organic horticulture she created and teaches as part of an honors curriculum. She answers the question of how gardening is appropriate for high-ability college students by saying that she believes efforts to raise plants by relatively non violent means teaches and disciplines students in an ethical way to…

Orchestrating the Move to Student-Driven Learning

ERIC Educational Resources Information Center

Kallick, Bena; Zmuda, Allison

2017-01-01

"We might view the movement from teacher-directed to student-driven learning as a set of controls, much like the controls on an audio sound board," write Bena Kallick and Allison Zmuda. For each element of personalization, the teacher can turn the volume up or down, amplifying or reducing the amount of student agency depending on the…

The Modernization of Signs: A Library Leads the Way to Networked Digital Signage

ERIC Educational Resources Information Center

Larson, Kendall; Quam, Allison

2010-01-01

At Winona State University's Krueger Library, where Kendall Larson is an associate professor and Allison Quam is an assistant professor, informational and directional signs are an essential part of the interior space. Yet the ubiquitous sign and media saturation has challenged them to design and maintain effective signage that is conspicuous and…

Transport of Gas and Solutes in Permeable Estuarine Sediments

DTIC Science & Technology

2008-01-01

and determination of transport rates, dispersion and interfacial flux of solutes and colloidal material. Participating Scientists and students ...Scientists and students participating in this work are Dr. Markus Huettel (PI), Dr. Parthasarathi Chakraborty (Postdoc), Sucharita Chakraborty (graduate... student ), Veronica Cruz (undergraduate student ) and Allison Rau (undergraduate student ). WORK COMPLETED Two field campaigns were conducted, the

The Effects of Age, Years of Experience, and Type of Experience in the Teacher Selection Process

ERIC Educational Resources Information Center

Vail, David Scott

2010-01-01

Paper screening in the pre-selection process of hiring teachers has been the focus in an ongoing series of similar studies starting with Allison in 1981. There have been many independent variables, including, but not limited to, age, gender, ethnic background, years of experience, type of experience, and grade point average, introduced into the…

Growth in Medical Spending by the Department of Defense

DTIC Science & Technology

2003-09-01

recommendations. Allison Percy of CBO’s National Security Division wrote the study under the general supervi- sion of Deborah Clay- Mendez and J. Michael Gilmore...Waldo, and McKusick 1990-2000 5.5 3.3 65.4 Burner and Waldo 1990-2000 4.0 3.3 19.5 Sources: Mark S. Freeland and Carol Ellen Schendler, “National Health

Fuels planning: Managing forest structure to reduce fire hazard

Treesearch

David L. Peterson; Morris C. Johnson; James K. Agee; Theresa B. Jain; Donald McKenzie; Elizabeth D. Reinhardt

2003-01-01

Prior to the 20th century, low intensity fires burned regularly in most arid to semiarid forest ecosystems, with ignitions caused by lightning and humans (e.g., Baisan and Swetnam 1997, Allen et al. 2002, Hessl et al. 2004). Low intensity fires controlled regeneration of fire sensitive (e.g., grand fir [Abies grandis]) species (Arno and Allison-Bunnell 2002), promoted...

The Effects of Age, Years of Experience, and Type of Experience in the Teacher Selection Process

ERIC Educational Resources Information Center

Place, A. William; Vail, David S.

2013-01-01

Paper screening in the pre-selection process of hiring teachers has been an established line of research starting with Young and Allison (1982). Administrators were asked to rate hypothetical candidates based on the information provided by the researcher. The dependent variable in several of these studies (e.g. Young & Fox, 2002; Young & Schmidt,…

Evidence of common signatures of selection in the genomes of West African cattle and the Yoruba human population

USDA-ARS?s Scientific Manuscript database

In 1954, Allison found that the sickle-cell anemia mutation in the beta hemoglobin gene was highly prevalent in West African people because it is protective against malaria, so carriers would thrive and leave offspring in spite of the genetic disease. This is one of the earliest evidences of an envi...

What's Going on with This Child? Child Study for the 21st Century

ERIC Educational Resources Information Center

Jones, Allison; Cossentino, Jacqueline

2017-01-01

Allison Jones and Jacqueline Cossentino have taken the term child study to describe the work they do with children experiencing challenges. Their approach to child study attempts to change the typical question of "What is wrong with this child?" to "What is going on with this child?" They have created a system by which they try…

Robust rankings of socioeconomic health inequality using a categorical variable.

PubMed

Makdissi, Paul; Yazbeck, Myra

2017-09-01

When assessing socioeconomic health inequalities, researchers often draw upon measures of income inequality that were developed for ratio scale variables. As a result, the use of categorical data (such as self-reported health status) produces rankings that may be arbitrary and contingent to the numerical scale adopted. In this paper, we develop a method that overcomes this issue by providing conditions for which these rankings are invariant to the numerical scale chosen by the researcher. In doing so, we draw on the insight provided by Allison and Foster (2004) and extend their method to the dimension of socioeconomic inequality by exploiting the properties of rank-dependent indices such as Wagstaff (2002) achievement and extended concentration indices. We also provide an empirical illustration using the National Institute of Health Survey 2012. Copyright © 2017 John Wiley & Sons, Ltd.

Ceramic applications in turbine engines

NASA Technical Reports Server (NTRS)

Helms, H. E.; Heitman, P. W.; Lindgren, L. C.; Thrasher, S. R.

1984-01-01

The application of ceramic components to demonstrate improved cycle efficiency by raising the operating temperature of the existing Allison IGI 404 vehicular gas turbine engine is discussed. This effort was called the Ceramic Applications in Turbine Engines (CATE) program and has successfully demonstrated ceramic components. Among these components are two design configurations featuring stationary and rotating caramic components in the IGT 404 engine. A complete discussion of all phases of the program, design, materials development, fabrication of ceramic components, and testing-including rig, engine, and vehicle demonstation test are presented. During the CATE program, a ceramic technology base was established that is now being applied to automotive and other gas turbine engine programs. This technology base is outlined and also provides a description of the CATE program accomplishments.

Silicon-Based Nanoscale Composite Energetic Materials

DTIC Science & Technology

2013-02-01

February 2013 HDTRA1-08-1-0006 Steven F. Son et al. Prepared by: Purdue University 130 Chaffee Hall 500 Allison Road West...in preparation or submitted. One patent disclosure has been submitted. We plan to submit another patent disclosure in the next few weeks...approach, termed salt-assisted combustion synthesis (SACS) (28]. In a SACS process, the SHS reactive mixture is combined with alkali metal halides

Smoke Emission Tests on Series II and Series III Allison T56 Turboprop Engines

DTIC Science & Technology

1986-12-01

Buioary ■ (13) available to ARL of aromatic content of AVTUR from Australian sources. The US data was obtained from information contained in Sheldon...Library Flight Standards Division Statutory and State Authorities and Industry Australian Atomic Energy Commiasion, Director Australian Airlines...Ampol Petroleum (Vic) Pty Md, Lubricant Sales & Service Mgr Ansett Airlines of Australia, Library Australian Coal Industry Research Labs

Colleges Are Slashing Adjuncts' Hours to Skirt New Rules on Health-Insurance Eligibility

ERIC Educational Resources Information Center

Dunn, Sydni

2013-01-01

Allison G. Armentrout, an adjunct instructor at Stark State College, does not get paid by the hour. She earns $4,600 to teach two English composition courses. But now she carefully tracks how many hours she works on an electronic time sheet. During a recent week, she spent three hours preparing for her lectures, close to six hours in the…

Species Profiles. Life Histories and Environmental Requirements of Coastal Fishes and Invertebrates (Mid-Atlantic). STRIPED BASS,

DTIC Science & Technology

1983-10-01

Adult striped bass were reported to survival. Time to death for unfed lar- tolerate temperatures from 0°-30°C(32 ° - vae was longer at lower...Allison, L. 0. J. A. Hutcheson, R. H. Ray. Horseman , W. H. Keirsey, and and T. L. Wellborn, Jr. 1969. C. A. Shirley. 1975. Fishes. Striped bass, 1968

Jointness: All for One and One for All

DTIC Science & Technology

2012-06-01

communications , artillery, anti-tank sections, and airpower to penetrate, shield, suppress, and provide mobility. The battlefield results of such units...and soldiers who are both aware through education and training of the interdependencies between them. They need to be able to communicate , which...successors.” Graham Allison and Philip Zelikow, Essence of Decision: Explaining the Cuban Missile Crisis , 2nd ed. (New York, NY: Longman, 1999

The Impact of Overeating on Mood Among Unrestrained College Females

DTIC Science & Technology

2005-11-28

term caloric restriction, although those participants scoring high on this scale may not be in a hypocaloric state (Gorman & Allison, 1995...nervosa (Garner et al., 1983). The subscales of the EDI include: Drive for Thinness (DT; excessive concern with dieting , preoccupation with weight...Wadden, T.A. (2001). Restrictive dieting versus “undieting”: Effects on eating regulation in obese clinic attenders. Addictive Behaviors, 26, 253-266

Measuring the Dispersion in Laser Cavity Mirrors using White-Light Interferometry

DTIC Science & Technology

2008-03-01

mirrors. Two AlGaInP (aluminum gallium indium phosphide ) diode lasers are aligned such that one is polarized vertically while one is polarized...linear crystals, where the index of refraction depends on beam intensity. Short pulses with high peak intensities are well 14 suited to induce the...MEASURING THE DISPERSION OF LASER CAVITY MIRRORS USING WHITE-LIGHT INTERFEROMETRY THESIS Allison S

Measuring Cross-Cultural Competence in Soldiers and Cadets: A Comparison of Existing Instruments

DTIC Science & Technology

2010-11-01

Cracking the nonverbal code: Intercultural competence and gesture recognition across cultures . Journal of Cross - Cultural Psychology , 36, 380-395...Technical Report 1276 Measuring Cross - Cultural Competence in Soldiers and Cadets: A Comparison of Existing Instruments Allison Abbe U.S. Army...Final 3. DATES COVERED (from. . July 2008-August 2010 .to) 4. TITLE AND SUBTITLE 5a. CONTRACT OR GRANT NUMBER Measuring Cross - Cultural Competence

A comparison of the analytical and experimental performance of the solid version of a cooled radial turbine

NASA Technical Reports Server (NTRS)

Tirres, Lizet

1991-01-01

An evaluation of the aerodynamic performance of the solid version of an Allison-designed cooled radial turbine was conducted at NASA Lewis' Warm Turbine Test Facility. The resulting pressure and temperature measurements are used to calculate vane, rotor, and overall stage performance. These performance results are then compared to the analytical results obtained by using NASA's MTSB (MERIDL-TSONIC-BLAYER) code.

Defense and Arms Control Studies Program, Annual Report 1991-1992

DTIC Science & Technology

1992-01-01

Targets?" April 22 - John Friedman Lead Engineer, The MITRE Corporation, "FiberOptics" April 29 - Frank Von Hippel Director, Center for Energy and...1991). Eric J. Labs, "Do Weak States Bandwagon?" Security Studies (Spring 1992). George Lewis and Theodore Postol, "SLCMs - Ignored, Then Stored...Jervis, Schelling, Waltz, Blainey, von Clausewitz, Brodie, Allison, Steinbruner, and Huntington. Students write a seminar pa- per in which theoretical

The Effects of Army and Air Force Institutional Theories of Victory on Operation Desert Storm

DTIC Science & Technology

2015-06-01

the nexus of doctrine, tactics, organization , and technology, which together constitute important aspects of the character of war in a particular era...fall exclusively within the domain of a single organization .” Thus, “government behavior relevant to any important problem reflects the...independent output of several organizations , partially coordinated by government leaders.”13 Borrowing from Allison and Zelikow’s observation, this thesis

Cross-Cultural Competence in Army Leaders: A Conceptual and Empirical Foundation

DTIC Science & Technology

2007-10-01

Kluckhohn and Strodbeck’s dimensions, produced gains in perceived competence on posttest relative to pretest scores, but not cultural interest or...Study Report 2008-01 Cross-Cultural Competence in Army Leaders: A Conceptual and Empirical Foundation Allison Abbe U.S. Army Research Institute Lisa...M. V. Gulick and Jeffrey L. Herman George Mason University Consortium Research Fellows Program United States Army Research Institute for the

Beam property measurement of a 300-kV ion source test stand for a 1-MV electrostatic accelerator

NASA Astrophysics Data System (ADS)

Park, Sae-Hoon; Kim, Dae-Il; Kim, Yu-Seok

2016-09-01

The KOMAC (Korea Multi-purpose Accelerator Complex) has been developing a 300-kV ion source test stand for a 1-MV electrostatic accelerator for industrial purposes. A RF ion source was operated at 200 MHz with its matching circuit. The beam profile and emittance were measured behind an accelerating column to confirm the beam property from the RF ion source. The beam profile was measured at the end of the accelerating tube and at the beam dump by using a beam profile monitor (BPM) and wire scanner. An Allison-type emittance scanner was installed behind the beam profile monitor (BPM) to measure the beam density in phase space. The measurement results for the beam profile and emittance are presented in this paper.

Proceedings of the NASTRAN (Tradename) Users’ Colloquium (13th) Held in Boston, Massachusetts on 6-10 May 1985

DTIC Science & Technology

1985-05-01

8, 9 and 10) is analyzed using 8-ply laminat J composite made of graphite/epoxy (commercially identified by Type T 300/ 5208). The geometry, loading...IN ROCKWELL NASTRAN .. ............................................. . 47 by C. Liao and R..E. Allison .w. W1 njernationa1) 5. LAYERED COMPOSITE ...NASTRAN ................................ 225 by R. L. Citerley and P. J. Woytowitz (Anamet Laboratories, Inc.) 15. SYMMETRIC COMPOSITE LAMINATE STRESS

Hurricane Harvey & Houston: Hell or High Water

NASA Astrophysics Data System (ADS)

Bedient, P. B.

2017-12-01

Harvey was the largest rainfall and most damaging flood event in US history. By all measures the widespread impact was a devastating blow to all of Houston and surrounding areas. It dropped between 36 and 52 inches along the Texas coast over 5 days, exceeding all previous rainfall records, with up to 20 inches in a day. However, two earlier events from 2015 and 2016 also brought widespread flooding to many parts of Houston, especially concentrated in a few watersheds. Most bayous during Harvey were over bank by as much as 10 ft, and flooded an estimated 136000 homes in Harris county alone, greatly exceeding the massive TS Allison impact of 2001. While the area deals with a significant recovery effort, there is a massive call to action on the part of politicians, governmental agencies, and those affected by this event. There is need for a better statistical basis of rainfalls and floodplain mapping in Houston. Development patterns and density have come into question, as homes have been either built in 100 yr floodplains or taken into those floodplains over time. Estimates say > 47 % of homes flooded in TS Allison were outside the floodplain. Many homes were built behind Addicks/Barker reservoirs that protect downtown, many with no knowledge that they were in harms way (over 8000 were flooded there alone), and flooded as water reached record setting levels. New technologies have allowed the measurement and prediction of floods to make great strides since the mid 1990s, (Radar, LIDAR, GIS, hydrologic models, floodplain updates) and the Houston area has benefited from these efforts. While the plan going forward is daunting, there are a number of positive steps that are occurring and should lead to more resiliency. There needs to be policy changes on storage and detention requirements, green space & infrastructure improvements, and perhaps a third regional reservoir above Addicks. Also there is a renewed interest in flood warning systems to better inform the public about risk within specific watersheds. There is still a great deal of suffering out there after Harvey, but the three big floods we have just seen should cause a change in the way Houston addresses floodplains and develops into the future.

Natural Hazard Problem and Solution Definition in the News Media: the Case of Tropical Storm Allison

NASA Astrophysics Data System (ADS)

Lindquist, Eric; Mosher-Howe, Katrina

2010-05-01

Focusing events such as natural or technological disasters can have significant impacts on public policy and planning in both the near and long term. These impacts can manifest at different temporal scales ranging from the period of immediate attention and disaster relief through the period of recovery and reconstruction and beyond. These impacts and associated decisions can be studied in retrospect and understood as not only short-term reactions, but as long-term components of subsequent natural hazard planning and public policy. By studying in detail how an event was defined, and the policy and planning alternatives that were raised or recommended in response to a disaster event, we can better understand the role that disaster-related focusing events play in the long-term evolution of a community's public policy, infrastructural planning efforts, and responses to natural disasters. This paper will use a focusing event framework to explore the local and regional policy impacts over time of a major urban flood in Houston, Texas, Tropical Storm Allison. Tropical Storm Allison (TSA), dropped 36 inches of rain on Houston over a period of four days in early June 2001, and was responsible for 22 deaths, 70,000 flood damaged homes, and 5 billion in damage to the region. The primary data source for this effort is a database of 500 articles from the major regional newspaper, the Houston Chronicle, over the period of 2001 through 2008. These articles were coded for multiple variables, including, cause, effect and impact (financial and social), blame, problem and solution definition and solution acceptance). This paper focuses primarily on the measures of problem definition (how was TSA, as an event, defined in the media, for example, as an act of God, or as a result of poor planning or decision making, etc), and on solution definition (what solutions were proposed to mitigate or adapt to future storms of this magnitude, how were they linked to the definition of the problem, and what was the perceived acceptability of such solutions among divers stakeholders). As such, this paper will contribute to our efforts to further link the social and policy sciences theory and methods with natural hazards research.

Enhancing Fires and Maneuver Capability Through Greater Air-Ground Joint Interdependence

DTIC Science & Technology

2009-01-01

and other source material. We thank our study points of contact at ACC/A3F, Col Louis Bochain, Col Ron Watkins , and Col John Allison, for giving us...TACP, and we thank Lt Col Seth Bretscher (505 OG/CD) for his insights and innovative ideas regarding the planning and execution of counterland...sensitive targeting. 21 Discussions with and materials from Lt Col Seth Bretscher, 2006. Options for Enhancing Joint Fires and Maneuver 33 Figure

South Africa: Durban's ante-natal clinic environment and its impact on a woman's choice to test for HIV during pregnancy.

PubMed

Groves, Allison K; Eyakuze, Cynthia

2010-10-01

Informed consent, counselling and confidentiality are key tenets of a human rights approach to HIV testing. In this article, based on an oral poster presentation at AIDS 2010, Allison K. Groves and Cynthia Eyakuze discuss the results of a study on HIV testing of women in ante-natal clinics in Durban, South Africa and how communication about testing may undermine the practice of obtaining informed consent.

A Study of the Applicability of Atomic Emission Spectroscopy (AES), Fourier Transform Infrared (FT-IR) Spectroscopy, Direct Reading and Analytical Ferrography on High Performance Aircraft Engine Lubricating Oils

DTIC Science & Technology

1998-01-01

Ferrography on High Performance Aircraft Engine Lubricating Oils Allison M. Toms, Sharon 0. Hem, Tim Yarborough Joint Oil Analysis Program Technical...turbine engines by spectroscopy (AES and FT-IR) and direct reading and analytical ferrography . A statistical analysis of the data collected is...presented. Key Words: Analytical ferrography ; atomic emission spectroscopy; condition monitoring; direct reading ferrography ; Fourier transform infrared

A Multidimensional Analysis of the Joint Strike Fighter (JSF) Acquisition Program from the Perspective of Turkey

DTIC Science & Technology

2016-12-01

Conceptual Models,” includes a thorough analysis of Turkey’s involvement in the F-35 program, based on Allison’s Rational Actor and Organizational ...TuAF, but also suggested an organizational structure similar to the U.S. DOD. In May 1949, the Turkish Parliament passed a law to reform the Turkish... organizational behavior model and a governmental politics model provide a base for improved explanations and predictions. (Allison & Zelikow, 1999) 40

Defense Working Capital Fund Pricing in the Defense Finance Accounting Service: A Useful, but Limited, Tool

DTIC Science & Technology

2015-01-01

Air Force), Zack Gaddy (former DFAS director), Ray Gaw (DFAS Indianapolis), Stephen Herrera (U.S. Air Force), Tony Hullinger (DFAS Indianapolis...Erica Thomas (U.S. Navy), and James Watkins (U.S. Army). Cynthia R. Cook and Marc Robbins provided program leadership to the RAND research team. We...appreciate their efforts on our behalf. Dr. Robbins provided numerous helpful suggestions as this research evolved. Allison Kerns edited this report

Bell P–63A King Cobra at the Aircraft Engine Research Laboratory

NASA Image and Video Library

1944-01-21

The Army Air Forces lent the National Advisory Committee for Aeronautics (NACA) Aircraft Engine Research Laboratory a Bell P–63A King Cobra in October 1943 to complement the lab's extensive efforts to improve the Allison V–1710 engine. The V–1710-powered P–63A was a single-seat fighter that could reach speeds of 410 miles per hour and an altitude of 43,000 feet. The fighter, first produced in 1942, was an improvement on Bell’s P–39, but persistent performance problems at high altitudes prevented its acceptance by the Air Corps. Instead many of the P–63s were transferred to the Soviet Union. Almost every test facility at the NACA’s engine lab was used to study the Allison V–1710 engine and its supercharger during World War II. Researchers were able to improve the efficiency, capacity and pressure ratio of the supercharger. They found that improved cooling significantly reduced engine knock in the fuel. Once the researchers were satisfied with their improvements, the new supercharger and cooling components were installed on the P–63A. The Flight Research Division first established the aircraft’s normal flight performance parameters such as speed at various altitudes, rate of climb, and peak altitude. Ensuing flights established the performance parameters of the new configuration in order to determine the improved performance. The program increased V–1710’s horsepower from 1650 to 2250.

Tropical Storm Allison rapid needs assessment--Houston, Texas, June 2001.

PubMed

2002-05-03

On June 5, 2001, Tropical Storm Allison made landfall on Galveston Island, Texas. During the next 2 days, the system soaked much of southeast Texas and south-central Louisiana with more than 10 inches of rain as it moved slowly northward. On June 7, the storm made a clockwise loop back to the southwest, bringing even more rain to already drenched areas. The record rainfall caused billions of dollars in flood-related damage and approximately 25 deaths and led to a presidential disaster, declaration covering 31 Texas counties (Figure 1) and 28 Louisiana parishes. Harris County, Texas (2000 population: 3,400,578), center of the Houston metropolitan area, was among the hardest hit with some areas receiving up to 37 inches of rain in 24 hours (Figure 2). To evaluate the community's immediate public health needs, the City of Houston Department of Health and Human Services (HDHHS) conducted a rapid needs assessment in the areas most affected by flooding. This report summarizes assessment results, which identified increased illness in persons living in flooded homes, suggesting a need for rapid resolution of flood-related damage and the possibility that residents should seek temporary housing during clean-up and repair. The findings underscore the usefulness of rapid needs assessment as a tool to minimize misinformation, identify actual health threats, and ensure delivery of resources to those with the greatest and most immediate need.

Political decision-making in health care: the Dutch case.

PubMed

Elsinga, E

1989-01-01

In many western countries health care is a subject of increasing importance on the political agenda. Issues such as aging, development of medical technologies, equity and efficiency of care, increasing costs, market elements, etc. are leading to a review of existing health care systems. In The Netherlands the government has proposed fundamental changes in the structure and financing of care, based on a report by the so-called Dekker Committee. The final result of a step-wise process of change should be the introduction of a new insurance scheme and the strengthening of market elements. After a short description of the government proposals, this article gives an analysis of the process of decision-making for a restructuring of health care in the Netherlands. The analysis is based on a bureaupolitical model, as originally described by Allison.

Nittrouer Receives 2013 Luna B. Leopold Young Scientist Award: Response

NASA Astrophysics Data System (ADS)

Nittrouer, Jeffrey A.

2014-09-01

I am grateful for receiving the Luna B. Leopold Award from the Earth and Planetary Surface Processes (EPSP) focus group at AGU. I am thankful to the mentors and colleagues who played important roles in shaping my science over the past 10 years. Significant credit goes to three people in particular: David Mohrig, Gary Parker, and Mead Allison. These gentlemen patiently developed and honed my skills for observing, modeling, and theorizing about the physical processes that produce fluvial-deltaic morphology and stratigraphy. It was an incredible opportunity to have worked with such a diverse set of thinkers, who regularly pushed me to consider and pursue new ideas, preventing too much comfort with the scientific status quo. Their mentoring fostered an independent and creative focus that produced the science for which this award has been generously given.

Evaluation and Analysis of Gas Turbine Internal Flow Restrictors.

DTIC Science & Technology

1986-08-01

Ail? 836 EVALUATION AND ANALYSIS OF GAS TURBINE INTERNAL FLd 1/2 RESTRICTORS(U) UNIVERSAL ENERGY SYSTEMS INC DAYTON ON G F HOLLE AUG 86 AFMAL-TR-86...NUMB6EftSI 5. MONITORING ORGANIZATION REPORT NUMBERISt AFWAL-TR-86- 2050 OF pEYFsM~ 1 * ORAIAIN7 NM FMNTRIG.GNZ70 Universal Energy Systems, Inc Air Force... Energy Systems, Inc. and Allison Gas Turgine Division of General Motors Corporation was sponsored by the Aeropropulsion Laboratory, United States Air

First Year Morphological Evolution of an Artificial Berm at Fort Myers Beach, Florida

DTIC Science & Technology

2012-01-01

unclassified b. ABSTRACT unclassified c . THIS PAGE unclassified Standard Form 298 (Rev. 8-98) Prescribed by ANSI Std Z39-18 ERDC/CHL CHETN-II-54...427-2431 or Linda.S.Lillycrop@usace.army.mil. ERDC/CHL CHETN-II-54 January 2012 10 REFERENCES Aidala, J. A., C . E. Burke, and T. N. McLellan...Forum ’91, American Society of Civil Engineers, pp 1234-1239. Allison, M. C ., and C . B. Pollock. 1993. Nearshore Berms: An Evaluation of Prototype

An Update on Nearshore Berms in the Corps of Engineers: Recent Projects and Future Needs

DTIC Science & Technology

2012-01-01

NAME OF RESPONSIBLE PERSON a. REPORT unclassified b. ABSTRACT unclassified c . THIS PAGE unclassified Standard Form 298 (Rev. 8-98) Prescribed...navigation channel influence, b. timing of placement which could be seasonally dependent, c . depth of berm in an active location, and d. the overall...NR HB2 HB1 AG LI SI BB Active % D iff fr om O ut er D O C L im it % Difference from Inner DOC Limit Active Stable Modified from Hands and Allison

Epidemiology of Spotted Fever Group and Typhus Group Rickettsial Infection in the Amazon Basin of Peru

DTIC Science & Technology

2010-01-01

MediCine and Hyg1cne Epidemiology of Spotted Fever Group and Typhus Group Rickettsial Infection in the Amazon Basin of Peru Brett M. Forshey, Allison...approximately 4% of acute febrile episodes detected in Iquitos, a city located in the Amazon region of northeast- ern Peru , could be attributed to SFGR...2010 to 00-00-2010 4. TITLE AND SUBTITLE Epidemiology Of Spotted Fever Group And Typhus Group Rickettsial Infection In The Amazon Basin Of Peru 5a

Phase separation in the six-vertex model with a variety of boundary conditions

NASA Astrophysics Data System (ADS)

Lyberg, I.; Korepin, V.; Ribeiro, G. A. P.; Viti, J.

2018-05-01

We present numerical results for the six-vertex model with a variety of boundary conditions. Adapting an algorithm for domain wall boundary conditions, proposed in the work of Allison and Reshetikhin [Ann. Inst. Fourier 55(6), 1847-1869 (2005)], we examine some modifications of these boundary conditions. To be precise, we discuss partial domain wall boundary conditions, reflecting ends, and half turn boundary conditions (domain wall boundary conditions with half turn symmetry). Dedicated to the memory of Ludwig Faddeev

On Disarmament: The Role of Conventional Arms Control in National Security Strategy

DTIC Science & Technology

1990-03-01

both have their stable and predetermined place." Furthermore, Hannah Arendt insists that "since authority always demands obedience, it is commonly...Its Critics, ed. by Robert 0. Keohane, New York: Columbia University Press, 1986, p. 137. 5. Hannah Arendt , "What Is Authority?" in Between Past and...Talks." Defense News, February 13,1989, p. A3. Allison, Graham. "Success is Within Reach." The New York Times, February 19,1989, p. E19. Arendt , Hannah

Parallel Attack and the Enemy’s Decision Making Process

DTIC Science & Technology

1998-04-01

Theory Coursebook , Vol 2, Sept 1997, p 365 8 Joint Publication 3-0, Doctrine for Joint Operations, 1 Feb 1995, p III-11 9 Gorrell, LtCol Edgar S., “The...Behavioral Strategies,” Journal of the American Statistical Association, Vol 90, Issue 432, December, 1995, p1137 3 Joint Publication 5-0, Doctrine for...Strategies,” Journal of the American Statistical Association, Vol 90, Issue 432, December, 1995, p1137 Allison, Graham T., “Conceptual Models and the Cuban

Beams 92. Proceedings of the International Conference on High-Power Particle Beams (9th) held in Washington, DC on May 25-29 1992, Volume 3

DTIC Science & Technology

1992-05-29

measurement we measured an aXP = 0.7(±0.2) when the value predicted by a single particle theory is ath = 0.35. The physical mechanism which leads to higher ...theoretical possibility of higher harmonics generation in the presence of a reversed guide field is highlighted. Introduction High-current free electron...ACCELERATORS, M. Bums, P. Allison, J. Downing, D.C. Moir, G. Caporaso, Y.J. Chen ...................................................... 283 SLIA THEORY

Randomized Phase II Trial of Adjuvant WT-1 Analog Peptide Vaccine in Patients with Malignant Pleural Mesothelioma after Completion of Multimodality Therapy

DTIC Science & Technology

2017-11-01

journal of cancer research : Gann 1999; 90(2): 194-204. 6. Rosenfeld C, Cheever MA, Gaiger A. WT1 in acute leukemia, chronic myelogenous leukemia...and myelodysplastic syndrome : therapeutic potential of WT1 targeted therapies. Leukemia 2003; 17(7): 1301-12. 7. Cheever MA, Allison JP, Ferris AS...Vaccination with synthetic analog peptides derived from WT1 oncoprotein induces T-cell responses in patients with complete remission from acute myeloid

AGT-1500 Combustor and Fuel Effects Modeling

DTIC Science & Technology

1980-10-01

test data of Moses and Naegeli (1978) were also con- sidered. These comprised blowoff equivalence ratios obtained using Detroit Diesel Allison T-63...Ofoses and Naegeli , 1978) Power Tin P ma 0 T =lp K % K atm kg/sec DRI JP- 5 Gas 100 547 4.77 1.10 .054 .053 .049 2314 2300 2307 55 494 3.69 .93 .069... Naegeli (1978). Their ignition tests were conducted on the T-63 helicopter engine (can-type comb~ustor with the igniter located in the dome) with 13

An overview of the Small Engine Component Technology (SECT) studies

NASA Technical Reports Server (NTRS)

Vanco, M. R.; Wintucky, W. T.; Niedzwiecki, R. W.

1986-01-01

The objectives of the joint NASA/Army SECT Studies were to identify high payoff technologies for year 2000 small gas turbine engine applications and to provide a technology plan for guiding future research and technology efforts applicable to rotorcraft, commuter and general aviation aircraft and cruise missiles. Competitive contracts were awarded to Allison, AVCO Lycoming, Garrett, Teledyne CAE and Williams International. This paper presents an overview of the contractors' study efforts for the commuter, rotorcraft, cruise missile, and auxiliary power (APU) applications with engines in the 250 to 1,000 horsepower size range. Reference aircraft, missions and engines were selected. Advanced engine configurations and cycles with projected year 2000 component technologies were evaluated and compared with a reference engine selected by the contractor. For typical commuter and rotorcraft applications, fuel savings of 22 percent to 42 percent can be attained. For $1/gallon and $2/gallon fuel, reductions in direct operating cost range from 6 percent to 16 percent and from 11 percent to 17 percent respectively. For subsonic strategic cruise missile applications, fuel savings of 38 percent to 54 percent can be achieved which allows 35 percent to 60 percent increase in mission range and life cycle cost reductions of 40 percent to 56 percent. High payoff technologies have been identified for all applications.

Fatigue life analysis of a turboprop reduction gearbox

NASA Technical Reports Server (NTRS)

Lewicki, D. G.; Black, J. D.; Savage, M.; Coy, J. J.

1985-01-01

A fatigue life analysis of the Allison T56/501 turboprop reduction gearbox was developed. The life and reliability of the gearbox was based on the lives and reliabilities of the main power train bearings and gears. The bearing and gear lives were determined using the Lundberg-Palmgren theory and a mission profile. The five planet bearing set had the shortest calculated life among the various gearbox components, which agreed with field experience where the planet bearing had the greatest incidences of failure. The analytical predictions of relative lives among the various bearings were in reasonable agreement with field experience. The predicted gearbox life was in excellent agreement with field data when the material life adjustment factors alone were used. The gearbox had a lower predicted life in comparison with field data when no life adjustment factors were used or when lubrication life adjustment factors were used either alone or in combination with the material factors.

Fatigue life analysis of a turboprop reduction gearbox

NASA Technical Reports Server (NTRS)

Lewicki, D. G.; Coy, J. J.; Black, J. D.; Savage, M.

1986-01-01

A fatigue life analysis of the Allison T56/501 turboprop reduction gearbox was developed. The life and reliability of the gearbox was based on the lives and reliabilities of the main power train bearings and gears. The bearing and gear lives were determined using the Lundberg-Palmgren theory and a mission profile. The five planet bearing set had the shortest calculated life among the various gearbox components, which agreed with field experience where the planet bearing had the greatest incidences of failure. The analytical predictions of relative lives among the various bearings were in reasonable agreement with field experience. The predicted gearbox life was in excellent agreement with field data when the material life adjustment factors alone were used. The gearbox had a lower predicted life in comparison with field data when no life adjustment factors were used or when lubrication life adjustment factors were used either alone or in combination with the material factors.

Training builds organizations in NIS.

PubMed

1995-01-01

The Centre for Development and Population Activities (CEDPA) has been using workshops to train nongovernmental organization (NGOs) managers in the Newly Independent States (NIS) of the former Soviet Union over the past year (1994). 7 were held in Ukraine and Moldova (with support from the Counterpart Foundation under an agreement with the US Agency for International Development), that covered skills for effective training and project proposal writing. The managers represented a variety of fields: environment, health, family planning, social services, consumer affairs, youth needs, women's programs, disabilities, education, and culture. Ralph Stone is CEDPA training director. Adrienne Allison, vice president of CEDPA, is a member of the Volunteer Executive Service Team (VEST), which conducts study tours to the area. A collaborative effort of the US government and the US private sector, VEST supports the development of the independent, civil, and services sectors of the new countries. In Washington, CEDPA conducted workshops on women's reproductive health (February and March) and on business policy and regulation (November and December) for Russians involved in family planning and small business development respectively. These were organized in conjunction with the University of California at Riverside and the Academy for Educational Development.

Effects of inlet distortion on gas turbine combustion chamber exit temperature profiles

NASA Astrophysics Data System (ADS)

Maqsood, Omar Shahzada

Damage to a nozzle guide vane or blade, caused by non-uniform temperature distributions at the combustion chamber exit, is deleterious to turbine performance and can lead to expensive and time consuming overhaul and repair. A test rig was designed and constructed for the Allison 250-C20B combustion chamber to investigate the effects of inlet air distortion on the combustion chamber's exit temperature fields. The rig made use of the engine's diffuser tubes, combustion case, combustion liner, and first stage nozzle guide vane shield. Rig operating conditions simulated engine cruise conditions, matching the quasi-non-dimensional Mach number, equivalence ratio and Sauter mean diameter. The combustion chamber was tested with an even distribution of inlet air and a 4% difference in airflow at either side. An even distribution of inlet air to the combustion chamber did not create a uniform temperature profile and varying the inlet distribution of air exacerbated the profile's non-uniformity. The design of the combustion liner promoted the formation of an oval-shaped toroidal vortex inside the chamber, creating localized hot and cool sections separated by 90° that appeared in the exhaust. Uneven inlet air distributions skewed the oval vortex, increasing the temperature of the hot section nearest the side with the most mass flow rate and decreasing the temperature of the hot section on the opposite side. Keywords: Allison 250, Combustion, Dual-Entry, Exit Temperature Profile, Gas Turbine, Pattern Factor, Reverse Flow.

Late Paleocene-middle Eocene benthic foraminifera on a Pacific seamount (Allison Guyot, ODP Site 865): Greenhouse climate and superimposed hyperthermal events

NASA Astrophysics Data System (ADS)

Arreguín-Rodríguez, Gabriela J.; Alegret, Laia; Thomas, Ellen

2016-03-01

We investigated the response of late Paleocene-middle Eocene (~60-37.5 Ma) benthic foraminiferal assemblages to long-term climate change and hyperthermal events including the Paleocene-Eocene Thermal Maximum (PETM) at Ocean Drilling Program (ODP) Site 865 on Allison Guyot, a seamount in the Mid-Pacific Mountains. Seamounts are isolated deep-sea environments where enhanced current systems interrupt bentho-pelagic coupling, and fossil assemblages from such settings have been little evaluated. Assemblages at Site 865 are diverse and dominated by cylindrical calcareous taxa with complex apertures, an extinct group which probably lived infaunally. Dominance of an infaunal morphogroup is unexpected in a highly oligotrophic setting, but these forms may have been shallow infaunal suspension feeders, which were ecologically successful on the current-swept seamount. The magnitude of the PETM extinction at Site 865 was similar to other sites globally, but lower diversity postextinction faunas at this location were affected by ocean acidification as well as changes in current regime, which might have led to increased nutrient supply through trophic focusing. A minor hyperthermal saw less severe effects of changes in current regime, with no evidence for carbonate dissolution. Although the relative abundance of infaunal benthic foraminifera has been used as a proxy for surface productivity through bentho-pelagic coupling, we argue that this proxy can be used only in the absence of changes in carbonate saturation and current-driven biophysical linking.

Expert System for Test Program Set Fault Candidate Selection

DTIC Science & Technology

1989-09-01

Mark Herbst Mr. Paul Janusz Mr. Wayne Lee Ms. Patricia Lyon Ms. Sharyn McDowell Mr. Richard Payne Ms. Elizabeth Parliman Mr. Albert Stanbury Ms. Allison...SMCAR-ESP-L AMSMC-QA(R) AMSMC-QAK-B(R), R. Fer Rock Island, IL 61299-6000 28 Commander U.S. Army Materiel Command ATTN: AMCQA-E, Mr. Chris Neubert AMCPD...ATTN: AMSEL-PA-MT-S, Mr. Paul Kogut Mr. Andy Mills AMSEL-PA AMSEL-PA-DL AMSEL-RD-SE-CRM-CM AMSEL-RD-SE-AST Ft. Monmouth, NJ 07703-5023 35 Director U.S

KSC-2011-1191

NASA Image and Video Library

2011-01-21

VANDENBERG AIR FORCE BASE, Calif. -- At Space Launch Complex 576-E at Vandenberg Air Force Base in California, the Stage 0/1 interstage is attached to Stage 0 of the four-stage Taurus XL rocket that will carry NASA's Glory spacecraft into low Earth orbit. Once Glory reaches orbit, it will collect data on the properties of aerosols and black carbon. It also will help scientists understand how the sun's irradiance affects Earth's climate. Launch is scheduled for 5:09 a.m. EST Feb. 23. For information, visit www.nasa.gov/glory. Photo credit: NASA/Roy Allison, VAFB

Analyzing Unstructured Communication in a Computer-Mediated Environment for Adults With Type 2 Diabetes: A Research Protocol.

PubMed

Lewinski, Allison A; Anderson, Ruth A; Vorderstrasse, Allison A; Fisher, Edwin B; Pan, Wei; Johnson, Constance M

2017-04-24

Individuals with type 2 diabetes have an increased risk for comorbidities such as heart disease, lower limb amputations, stroke, and renal failure. Multiple factors influence development of complications in a person living with type 2 diabetes; however, an individual's self-management behaviors may delay the onset of, or lessen the severity of, these complications. Social support provides personal, informal advice and knowledge that helps individuals initiate and sustain self-management and adherence. Our aim was to gain an understanding of type 2 diabetes social interaction in a virtual environment, one type of computer-mediated environment (CME), and the social support characteristics that increase and sustain self-management in adults living with chronic illness. This study is a secondary analysis of longitudinal data collected in a CME study, Second Life Impacts Diabetes Education & Self-Management (1R21-LM010727-01). This virtual environment replicated a real-life community where 6 months of naturalistic synchronous voice conversations, emails, and text chats were recorded among participants and providers. This analysis uses a mixed-methods approach to explore and compare qualitative and quantitative findings. This analysis is guided by two theories: Strong/Weak Ties Theory and Social Penetration Theory. Qualitative data will be analyzed using content analysis, and we will complete descriptive statistics on the quantified variables (eg, average number of ties). Institutional review board approval was obtained in June 2016. This study is in progress. Interventions provided through virtual environments are a promising solution to increasing self-management practices. However, little is known of the depth, breadth, and quality of social support that is exchanged and how interaction supports self-management and relates to health outcomes. This study will provide knowledge that will help guide clinical practice and policy to enhance social support for chronic illness via the Internet. ©Allison A Lewinski, Ruth A Anderson, Allison A Vorderstrasse, Edwin B Fisher, Wei Pan, Constance M Johnson. Originally published in JMIR Research Protocols (http://www.researchprotocols.org), 24.04.2017.

Ultra-Efficient Engine Technology (UEET) Program

NASA Technical Reports Server (NTRS)

Manthey, Lori A.

2001-01-01

The Ultra-Efficient Engine Technology (UEET) Program includes seven key projects that work with industry to develop and hand off revolutionary propulsion technologies that will enable future-generation vehicles over a wide range of flight speeds. A new program office, the Ultra-Efficient Engine Technology (UEET) Program Office, was formed at the NASA Glenn Research Center to manage an important National propulsion program for NASA. The Glenn-managed UEET Program, which began on October 1, 1999, includes participation from three other NASA centers (Ames, Goddard, and Langley), as well as five engine companies (GE Aircraft Engines, Pratt & Whitney, Honeywell, Allison/Rolls Royce, and Williams International) and two airplane manufacturers (the Boeing Company and Lockheed Martin Corporation). This 6-year, nearly $300 million program will address local air-quality concerns by developing technologies to significantly reduce nitrogen oxide (NOx) emissions. In addition, it will provide critical propulsion technologies to dramatically increase performance as measured in fuel burn reduction that will enable reductions of carbon dioxide (CO2) emissions. This is necessary to address the potential climate impact of long-term aviation growth.

EDITORIAL: Focus on Advances in Surface and Interface Science 2008 FOCUS ON ADVANCES IN SURFACE AND INTERFACE SCIENCE 2008

NASA Astrophysics Data System (ADS)

Scheffler, Matthias; Schneider, Wolf-Dieter

2008-12-01

Basic research in surface and interface science is highly interdisciplinary, covering the fields of physics, chemistry, biophysics, geo-, atmospheric and environmental sciences, material science, chemical engineering, and more. The various phenomena are interesting by themselves, and they are most important in nearly all modern technologies, as for example electronic, magnetic, and optical devices, sensors, catalysts, lubricants, hard and thermal-barrier coatings, protection against corrosion and crack formation under harsh environments. In fact, detailed understanding of the elementary processes at surfaces is necessary to support and to advance the high technology that very much founds the prosperity and lifestyle of our society. Current state-of-the-art experimental studies of elementary processes at surfaces, of surface properties and functions employ a variety of sophisticated tools. Some are capable of revealing the location and motion of individual atoms. Others measure excitations (electronic, magnetic and vibronic), employing, for example, special light sources such as synchrotrons, high magnetic fields, or free electron lasers. The surprising variety of intriguing physical phenomena at surfaces, interfaces, and nanostructures also pose a persistent challenge for the development of theoretical descriptions, methods, and even basic physical concepts. This second focus issue on the topic of 'Advances in Surface and Interface Science' in New Journal of Physics, following on from last year's successful collection, provides an exciting synoptic view on the latest pertinent developments in the field. Focus on Advances in Surface and Interface Science 2008 Contents Organic layers at metal/electrolyte interfaces: molecular structure and reactivity of viologen monolayers Stephan Breuer, Duc T Pham, Sascha Huemann, Knud Gentz, Caroline Zoerlein, Ralf Hunger, Klaus Wandelt and Peter Broekmann Spin polarized d surface resonance state of fcc Co/Cu(001) K Miyamoto, K Iori, K Sakamoto, H Narita, A Kimura, M Taniguchi, S Qiao, K Hasegawa, K Shimada, H Namatame and S Blügel Activated associative desorption of C + O → CO from Ru(001) induced by femtosecond laser pulses S Wagner, H Öström, A Kaebe, M Krenz, M Wolf, A C Luntz and C Frischkorn Surface structure of Sn-doped In2O3 (111) thin films by STM Erie H Morales, Yunbin He, Mykola Vinnichenko, Bernard Delley and Ulrike Diebold Coulomb oscillations in three-layer graphene nanostructures J Güttinger, C Stampfer, F Molitor, D Graf, T Ihn and K Ensslin Adsorption processes of hydrogen molecules on SiC(001), Si(001) and C(001) surfaces Xiangyang Peng, Peter Krüger and Johannes Pollmann Fermi surface nesting in several transition metal dichalcogenides D S Inosov, V B Zabolotnyy, D V Evtushinsky, A A Kordyuk, B Büchner, R Follath, H Berger and S V Borisenko Probing molecule-surface interactions through ultra-fast adsorbate dynamics: propane/Pt(111) A P Jardine, H Hedgeland, D Ward, Y Xiaoqing, W Allison, J Ellis and G Alexandrowicz A novel method achieving ultra-high geometrical resolution in scanning tunnelling microscopy R Temirov, S Soubatch, O Neucheva, A C Lassise and F S Tautz

High-Frequency Testing of Composite Fan Vanes With Erosion-Resistant Coating Conducted

NASA Technical Reports Server (NTRS)

Bowman, Cheryl L.; Sutter, James K.; Naik, Subhash; Otten, Kim D.; Perusek, Gail P.

2003-01-01

The mechanical integrity of hard, erosion-resistant coatings were tested using the Structural Dynamics Laboratory at the NASA Glenn Research Center. Under the guidance of Structural Mechanics and Dynamics Branch personnel, fixturing and test procedures were developed at Glenn to simulate engine vibratory conditions on coated polymer-matrix- composite bypass vanes using a slip table in the Structural Dynamics Laboratory. Results from the high-frequency mechanical bench testing, along with concurrent erosion testing of coupons and vanes, provided sufficient confidence to engine-endurance test similarly coated vane segments. The knowledge gained from this program will be applied to the development of oxidation- and erosion-resistant coatings for polymer matrix composite blades and vanes in future advanced turbine engines. Fan bypass vanes from the AE3007 (Rolls Royce America, Indianapolis, IN) gas turbine engine were coated by Engelhard (Windsor, CT) with compliant bond coatings and hard ceramic coatings. The coatings were developed collaboratively by Glenn and Allison Advanced Development Corporation (AADC)/Rolls Royce America through research sponsored by the High-Temperature Engine Materials Technology Project (HITEMP) and the Higher Operating Temperature Propulsion Components (HOTPC) project. High-cycle fatigue was performed through high-frequency vibratory testing on a shaker table. Vane resonant frequency modes were surveyed from 50 to 3000 Hz at input loads from 1g to 55g on both uncoated production vanes and vanes with the erosion-resistant coating. Vanes were instrumented with both lightweight accelerometers and strain gauges to establish resonance, mode shape, and strain amplitudes. Two high-frequency dwell conditions were chosen to excite two strain levels: one approaching the vane's maximum allowable design strain and another near the expected maximum strain during engine operation. Six specimens were tested per dwell condition. Pretest and posttest inspections were performed optically at up to 60 magnification and using a fluorescent-dye penetrant. Accumulation of 10 million cycles at a strain amplitude of two to three times that expected in the engine (approximately 670 Hz and 20g) led to the development of multiple cracks in the coating that were only detectable using fluorescent-dye penetrant inspection. Cracks were prevalent on the trailing edge and on the convex side of the midsection. No cracking or spalling was evident using standard optical inspection at up to 60 magnification. Further inspection may reveal whether these fine cracks penetrated the coating or were strictly on the surface. The dwell condition that simulated actual engine conditions produced no obvious surface flaws even after up to 80 million cycles had been accumulated at strain amplitudes produced at approximately 1500 Hz and 45g.

An overview of the small engine component technology (SECT) studies. [commuter, rotorcraft, cruise missile and auxiliary power applications in year 2000

NASA Technical Reports Server (NTRS)

Vanco, M. R.; Wintucky, W. T.; Niedwiecki, R. W.

1986-01-01

The objectives of the joint NASA/Army SECT studies were to identify high payoff technologies for year 2000 small gas turbine engine applications and to provide a technology plan for guiding future research and technology efforts applicable to rotorcraft, commuter and general aviation aircraft and cruise missiles. Competitive contracts were awarded to Allison, AVCO Lycoming, Garrett, Teledyne CAE and Williams International. This paper presents an overview of the contractors' study efforts for the commuter, rotorcraft, cruise missile, and auxiliary power (APU) applications with engines in the 250 to 1,000 horsepower size range. Reference aircraft, missions and engines were selected. Advanced engine configurations and cycles with projected year 2000 component technologies were evaluated and compared with a reference engine selected by the contractor. For typical commuter and rotorcraft applications, fuel savings of 22 percent to 42 percent can be attained. For $1/gallon and $2/gallon fuel, reductions in direct operating cost range from 6 percent to 16 percent and from 11 percent to 17 percent respectively. For subsonic strategic cruise missile applications, fuel savings of 38 percent to 54 percent can be achieved which allows 35 percent to 60 percent increase in mission range and life cycle cost reductions of 40 percent to 56 percent. High payoff technologies have been identified for all applications.

Proceedings of the Government Users Workshop on Ground Penetrating Radar Applications and Equipment 26-27 March 1992 Vicksburg, Mississippi

DTIC Science & Technology

1992-12-01

Allison P.O. Box 946 USDA Tifton , GA 31794 Box 946 Phone: 912-386-3899 Tifton , GA 31794 FAX: 912-386-7215 Phone: 912-386-7075 FAX: 912-386-7215 Paul...FAX: 603-889-3984 FAX: 071-724-1433 Ricky Fletcher S. V. Cosvay USDA-ARS-SEWRL Sensors and Software, Inc. Rt. 4, Box 1390 5566 Tomken Road Tifton , GA ... Tifton , GA 31793 Phone: 305-634-4507 Phone: 912-386-7174 FAX: 305-635-4901 FAX: 912-386-7215 8 GOVERNMENT USERS WORKSHOP ON GROUND PENETRATING RADAR

Design and preliminary results of a fuel flexible industrial gas turbine combustor

NASA Technical Reports Server (NTRS)

Novick, A. S.; Troth, D. L.; Yacobucci, H. G.

1981-01-01

The design characteristics are presented of a fuel tolerant variable geometry staged air combustor using regenerative/convective cooling. The rich/quench/lean variable geometry combustor is designed to achieve low NO(x) emission from fuels containing fuel bound nitrogen. The physical size of the combustor was calculated for a can-annular combustion system with associated operating conditions for the Allison 570-K engine. Preliminary test results indicate that the concept has the potential to meet emission requirements at maximum continuous power operation. However, airflow sealing and improved fuel/air mixing are necessary to meet Department of Energy program goals.

Assessing the geologic and climatic forcing of biodiversity and evolution surrounding the Gulf of California

USGS Publications Warehouse

Dolby, Greer; Bennett, Scott E. K.; Lira-Noriega, Andres; Wilder, Benjamin T.; Munguia-Vega, Adrian

2015-01-01

For almost a century the Baja California peninsula (Peninsula), Gulf of California (Gulf), and broader Sonoran Desert region (figure 1) have drawn geologists and biologists alike to study its unique physical and evolutionary processes (e.g., Wittich 1920; Darton 1921; Nelson 1921; Johnston 1924; Beal 1948; Durham and Allison 1960). The challenge remains to untangle the long, intricate, and at times enigmatic geological and climatological histories that have shaped the high levels of endemism and biodiversity observed in the region today (Van Devender 1990; Grismer 2000; Riddle et al. 2000).

No space for girliness in physics: understanding and overcoming the masculinity of physics

NASA Astrophysics Data System (ADS)

Götschel, Helene

2014-06-01

Allison Gonsalves' article on "women doctoral students' positioning around discourses of gender and competence in physics" explores narratives of Canadian women physicists concerning their strategies to gain recognition as physicists. In my response to her rewarding and inspiring analysis I will reflect on her findings and arguments and put them into a broader context of research in gender and physics. In addition to her promising strategies to make physics attractive and welcoming to all genders I want to stress two more aspects of the tricky problem: diversity and contextuality of physics.

KSC-2011-1188

NASA Image and Video Library

2011-01-21

VANDENBERG AIR FORCE BASE, Calif. -- At Vandenberg Air Force Base in California, the Stage 0/1 interstage, part of the four-stage Taurus XL rocket that will carry NASA's Glory spacecraft into low Earth orbit, is lifted by crane toward the pad at Space Launch Complex 576-E. Once Glory reaches orbit, it will collect data on the properties of aerosols and black carbon. It also will help scientists understand how the sun's irradiance affects Earth's climate. Launch is scheduled for 5:09 a.m. EST Feb. 23. For information, visit www.nasa.gov/glory. Photo credit: NASA/Roy Allison, VAFB

KSC-2011-1189

NASA Image and Video Library

2011-01-21

VANDENBERG AIR FORCE BASE, Calif. -- At Vandenberg Air Force Base in California, the Stage 0/1 interstage, part of the four-stage Taurus XL rocket that will carry NASA's Glory spacecraft into low Earth orbit, is lifted by crane toward the pad at Space Launch Complex 576-E. Once Glory reaches orbit, it will collect data on the properties of aerosols and black carbon. It also will help scientists understand how the sun's irradiance affects Earth's climate. Launch is scheduled for 5:09 a.m. EST Feb. 23. For information, visit www.nasa.gov/glory. Photo credit: NASA/Roy Allison, VAFB

Quality-Assurance Plan for Water-Quality Activities of the U.S. Geological Survey in Miami, Florida

DTIC Science & Technology

2003-01-01

Jacqueline Lima GS-12 GS-10 GS-09 GS-09 GS-08 GS-07 GS-06 GS-06 GS-04 GS-04Eleanor Seymore Surface-Water Data Collections & Jon Woolverton Jorge Agis...Thomas J. Smith, III Gordon Anderson Kevin Whelan Don De Angelis Allison Snow GS-13 GS-07 GS-05 GS-12 GS-13 GS-07 GS-12 GS-13 GS-09 GS-07 GS-14 GS-07...fan, active, inactive, inventory only playa , month day year stream channel, digital rec- order, North American Datum of 1927 North American Datum of

Evaluation of the Tone Fan Noise Design/Prediction System (TFaNS) at the NASA Glenn Research Center

NASA Technical Reports Server (NTRS)

Koch, L. Danielle

1999-01-01

Version 1.4 of TFaNS, the Tone Fan Noise Design/Prediction System. has recently been evaluated at the NASA Glenn Research Center. Data from tests of the Allison Ultra High Bypass Fan (UHBF) were used to compare to predicted farfield directivities for the radial stator configuration. There was good agreement between measured and predicted directivities at low fan speeds when rotor effects were neglected in the TFaNS calculations. At higher fan speeds, TFaNS is shown to be useful in predicting overall trends rather than absolute sound pressure levels.

Aeropropulsion Technology (APT). Task 23 - Stator Seal Cavity Flow Investigation

NASA Technical Reports Server (NTRS)

Heidegger, N. J.; Hall, E. J.; Delaney, R. A.

1996-01-01

The focus of NASA Contract NAS3-25950 Task 23 was to numerically investigate the flow through an axial compressor inner-banded stator seal cavity. The Allison/NASA developed ADPAC code was used to obtain all flow predictions. Flow through a labyrinth stator seal cavity of a high-speed compressor was modeled by coupling the cavity flow path and the main flow path of the compressor. A grid resolution study was performed to guarantee adequate grid spacing was used. Both unsteady rotor-stator-rotor interactions and steady-state isolated blade calculations were performed with and without the seal cavity present. A parameterized seal cavity study of the high-speed stator seal cavity collected a series of solutions for geometric variations. The parameter list included seal tooth gap, cavity depth, wheel speed, radial mismatch of hub flowpath, axial trench gap, hub corner treatments, and land edge treatments. Solution data presented includes radial and pitchwise distributions of flow variables and particle traces describing the flow character.

SpaceX-3 KSC Payloads: Biotube, Bric, Apex2-2

NASA Image and Video Library

2014-03-07

CAPE CANAVERAL, Fla. - In the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, Allison Caron, a QinetiQ mechanical engineer, checks out part of the Biotube experiment which will be launched to the International Space Station aboard a SpaceX Dragon spacecraft. Scheduled for launch on March 16 atop a Falcon 9 rocket, Dragon will be marking its fourth trip to the space station. The SpaceX-3 mission is the third of 12 flights contracted by NASA to resupply the orbiting laboratory. For more information, visit http://www.nasa.gov/mission_pages/station/structure/launch/index.html Photo credit: NASA/Kim Shiflett

Flow of a Gas Turbine Engine Low-Pressure Subsystem Simulated

NASA Technical Reports Server (NTRS)

Veres, Joseph P.

1997-01-01

The NASA Lewis Research Center is managing a task to numerically simulate overnight, on a parallel computing testbed, the aerodynamic flow in the complete low-pressure subsystem (LPS) of a gas turbine engine. The model solves the three-dimensional Navier- Stokes flow equations through all the components within the LPS, as well as the external flow around the engine nacelle. The LPS modeling task is being performed by Allison Engine Company under the Small Engine Technology contract. The large computer simulation was evaluated on networked computer systems using 8, 16, and 32 processors, with the parallel computing efficiency reaching 75 percent when 16 processors were used.

KSC-2009-5874

NASA Image and Video Library

2009-10-19

VANDENBERG AIR FORCE BASE, Calif. - At Space Launch Complex 2 at Vandenberg Air Force Base in California, workers supervise the first stage of the United Launch Alliance Delta II rocket for launch of NASA's Wide-field Infrared Survey Explorer, or WISE, as it is lowered onto pedestal's in the pad's mobile service tower. WISE will survey the entire sky at infrared wavelengths, creating a cosmic clearinghouse of hundreds of millions of objects which will be catalogued and provide a vast storehouse of knowledge about the solar system, the Milky Way, and the universe. Launch is scheduled for Dec. 7. For additional information, visit http://wise.ssl.berkeley.edu. Photo credit: NASA/Roy Allison, VAFB

Hierarchical Modeling and Robust Synthesis for the Preliminary Design of Large Scale Complex Systems

NASA Technical Reports Server (NTRS)

Koch, Patrick N.

1997-01-01

Large-scale complex systems are characterized by multiple interacting subsystems and the analysis of multiple disciplines. The design and development of such systems inevitably requires the resolution of multiple conflicting objectives. The size of complex systems, however, prohibits the development of comprehensive system models, and thus these systems must be partitioned into their constituent parts. Because simultaneous solution of individual subsystem models is often not manageable iteration is inevitable and often excessive. In this dissertation these issues are addressed through the development of a method for hierarchical robust preliminary design exploration to facilitate concurrent system and subsystem design exploration, for the concurrent generation of robust system and subsystem specifications for the preliminary design of multi-level, multi-objective, large-scale complex systems. This method is developed through the integration and expansion of current design techniques: Hierarchical partitioning and modeling techniques for partitioning large-scale complex systems into more tractable parts, and allowing integration of subproblems for system synthesis; Statistical experimentation and approximation techniques for increasing both the efficiency and the comprehensiveness of preliminary design exploration; and Noise modeling techniques for implementing robust preliminary design when approximate models are employed. Hierarchical partitioning and modeling techniques including intermediate responses, linking variables, and compatibility constraints are incorporated within a hierarchical compromise decision support problem formulation for synthesizing subproblem solutions for a partitioned system. Experimentation and approximation techniques are employed for concurrent investigations and modeling of partitioned subproblems. A modified composite experiment is introduced for fitting better predictive models across the ranges of the factors, and an approach for constructing partitioned response surfaces is developed to reduce the computational expense of experimentation for fitting models in a large number of factors. Noise modeling techniques are compared and recommendations are offered for the implementation of robust design when approximate models are sought. These techniques, approaches, and recommendations are incorporated within the method developed for hierarchical robust preliminary design exploration. This method as well as the associated approaches are illustrated through their application to the preliminary design of a commercial turbofan turbine propulsion system. The case study is developed in collaboration with Allison Engine Company, Rolls Royce Aerospace, and is based on the Allison AE3007 existing engine designed for midsize commercial, regional business jets. For this case study, the turbofan system-level problem is partitioned into engine cycle design and configuration design and a compressor modules integrated for more detailed subsystem-level design exploration, improving system evaluation. The fan and low pressure turbine subsystems are also modeled, but in less detail. Given the defined partitioning, these subproblems are investigated independently and concurrently, and response surface models are constructed to approximate the responses of each. These response models are then incorporated within a commercial turbofan hierarchical compromise decision support problem formulation. Five design scenarios are investigated, and robust solutions are identified. The method and solutions identified are verified by comparison with the AE3007 engine. The solutions obtained are similar to the AE3007 cycle and configuration, but are better with respect to many of the requirements.

Canceling effect leads temperature insensitivity of hydrolytic enzymes in soil

NASA Astrophysics Data System (ADS)

Razavi, Bahar S.; Blagodatskaya, Evgenia; Kuzyakov, Yakov

2015-04-01

Extracellular enzymes are important for decomposition of many macromolecules abundant in soil such as cellulose, hemicelluloses and proteins (Allison et al., 2010; Chen et al., 2012). The temperature sensitivity of enzymes responsible for organic matter decomposition is the most crucial parameter for prediction of the effects of global warming on carbon cycle. Temperature responses of biological systems are often expressed as a Q10 functions; The Q10 describes how the rate of a chemical reaction changes with a temperature increase for 10 °C The aim of this study was to test how the canceling effect will change with variation in temperature interval, during short-term incubation. We additionally investigated, whether canceling effect occurs in a broad range of concentrations (low to high) and whether it is similar for the set of hydrolytic enzymes within broad range of temperatures. To this end, we performed soil incubation over a temperature range of 0-40°C (with 5°C steps). We determined the activities of three enzymes involved in plant residue decomposition: β-glucosidase and cellobiohydrolase, which are commonly measured as enzymes responsible for degrading cellulose (Chen et al., 2012), and xylanase, which degrades xylooligosaccharides (short xylene chain) in to xylose, thus being responsible for breaking down hemicelluloses (German et al., 2011). Michaelis-Menten kinetics measured at each temperature allowed to calculate Q10 values not only for the whole reaction rates, but specifically for maximal reaction rate (Vmax) and substrate affinity (Km). Subsequently, the canceling effect - simultaneous increase of Vmax and Km with temperature was analyzed within 10 and 5 degree of temperature increase. Three temperature ranges (below 10, between 15 and 25, and above 30 °C) clearly showed non-linear but stepwise increase of temperature sensitivity of all three enzymes and allowed to conclude for predominance of psychrophilic, mesophilic and thermophilic microorganisms in soil at these temperature ranges. We conclude that the temperature sensitivity (Q10) of enzyme activity declines at higher temperature and lower concentration of substrates in soil. Overall, our results suggest that the fine-scale (five degree) temperature resolution level needs to be considered in global earth system models especially at temperature thresholds for physiological groups of soil microorganisms. Refcences: Allison, S.D., Wallenstein, M.D., Bradford, M.A., 2010. Soil-carbon response to warming dependent on microbial physiology. Nat. Geosci. 3, 336-340. doi:10.1038/ngeo846 Chen, R., Blagodatskaya, E., Senbayram, M., Blagodatsky, S., Myachina, O., Dittert, K., Kuzyakov, Y., 2012. Decomposition of biogas residues in soil and their effects on microbial growth kinetics and enzyme activities. Biomass Bioenergy 45, 221-229. doi:10.1016/j.biombioe.2012.06.014 German, D.P., Weintraub, M.N., Grandy, A.S., Lauber, C.L., Rinkes, Z.L., Allison, S.D., 2011. Optimization of hydrolytic and oxidative enzyme methods for ecosystem studies. Soil Biol. Biochem. 43, 1387-1397. doi:10.1016/j.soilbio.2011.03.017

Reproducibility of a four-point clinical severity score for glabellar frown lines.

PubMed

Honeck, P; Weiss, C; Sterry, W; Rzany, B

2003-08-01

Focal injections of botulinum toxin A are used successfully for the treatment of hyperkinetic facial wrinkles. Efficacy can be measured by several methods. However, so far none has been investigated for its reproducibility. Objectives To investigate the reproducibility of a clinical 0-3 score for glabellar frown lines. In the first part of the study, a standardized photographic documentation of glabellar frown lines was produced. Based on the results of this phase, a consensus atlas of glabellar frown lines was developed and participants were trained using this atlas. In the main study, 50 standardized photographs were shown on two consecutive days to 28 dermatologists. The reproducibility of the score was investigated by conventional kappa statistics. In the main study, we found an unweighted kappa according to Fleiss of 0.62 for interobserver reproducibility. Intraobserver reproducibility showed an unweighted kappa according to Cohen of between 0.57 and 0.91 for each observer, and a weighted kappa according to Cicchetti and Allison of between 0.68 and 0.94. The clinical 0-3 score for glabellar frown lines shows a good inter- and intraobserver reproducibility.

Evening hyperphagia and food motivation: a preliminary study of neural mechanisms.

PubMed

Lundgren, Jennifer D; Patrician, Trisha M; Breslin, Florence J; Martin, Laura E; Donnelly, Joseph E; Savage, Cary R

2013-12-01

Evening hyperphagia (EH; consumption of ≥25% of total daily calories after the evening meal) is a circadian delay in the pattern of daily food intake and is a core criterion of night eating syndrome (Allison et al., 2010). This preliminary study examined the brain response to food cues using functional magnetic resonance imaging (fMRI) in seven obese adults with EH compared to seven obese adults without EH. When contrasting food to non-food and blurry baseline images pre-meal, groups differed in brain activation in the inferior frontal gyrus, precentral gyrus, cingulate gyrus, superior temporal gyrus and cerebellum. At post meal, groups differed in brain activation in the fusiform gyrus, inferior frontal gyrus, inferior parietal lobule and the cerebellum. Significant interactions between time (pre-meal, post-meal) and group (EH, control) when contrasting food to non-food images were also noted in the inferior frontal gyrus and the superior temporal gyrus. Further research is necessary to replicate these findings and determine if they have a mechanistic role in the development of circadian delayed eating behavior in obese adults with EH. © 2013.

Episode 2: The Clean Energy Geek Squad (Direct Current – An Energy.gov Podcast)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Lantero, Allison; Dozier, Matt; Phear, Nicky

2016-06-03

In this episode of Direct Current - An Energy.gov Podcast, Matt calls up the Clean Energy Solutions Center, a "help desk" that provides free expert advice on clean energy policy to governments all over the world. Allison talks to Nicky Phear, a professor who cycles hundreds of miles across Montana to teach her students about climate change. Nicky just received a big award at the C3E Women in Clean Energy Symposium for her education work, and she's basically an energy rockstar. Dan and Paul put their heads together to come up with a better way to measure energy -- startingmore » with the humble burrito.« less

SpaceX-3 KSC Payloads: Biotube, Bric, Apex2-2

NASA Image and Video Library

2014-03-07

CAPE CANAVERAL, Fla. - In the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, QinetiQ North America Project Manager Carole Miller, left, works with Allison Caron, a QinetiQ mechanical engineer in preparing the Biotube experiment which will be launched to the International Space Station aboard a SpaceX Dragon spacecraft. Scheduled for launch on March 16 atop a Falcon 9 rocket, Dragon will be marking its fourth trip to the space station. The SpaceX-3 mission is the third of 12 flights contracted by NASA to resupply the orbiting laboratory. For more information, visit http://www.nasa.gov/mission_pages/station/structure/launch/index.html Photo credit: NASA/Kim Shiflett

Episode 2: The Clean Energy Geek Squad (Direct Current – An Energy.gov Podcast)

ScienceCinema

Lantero, Allison; Dozier, Matt; Phear, Nicky; Wood, Daniel; Lester, Paul

2018-05-04

In this episode of Direct Current - An Energy.gov Podcast, Matt calls up the Clean Energy Solutions Center, a "help desk" that provides free expert advice on clean energy policy to governments all over the world. Allison talks to Nicky Phear, a professor who cycles hundreds of miles across Montana to teach her students about climate change. Nicky just received a big award at the C3E Women in Clean Energy Symposium for her education work, and she's basically an energy rockstar. Dan and Paul put their heads together to come up with a better way to measure energy -- starting with the humble burrito.

Cost/Risk Analysis for Disk Retirement. Volume 1

DTIC Science & Technology

1984-02-03

comparing Figures 4-4, 4-5, and 4- 6 , which is similar for the other 4-8 co C)) 0 - 6 row L. 0ý ci 41C~j <o u ) 4.-1 LG)) a)L I- . > c- Ca 0. 4-)>C ~.0...4-1 M&T3B-9201 7. AUT’l)R(a) 6 . CONTRACT OR GRANT NUMBER(&) S. W. Hopkins, P. M. Besuner, C. A. Eau, Jr.., D. W. Allison, J. W. Eischeni, J. N...Analysis Associates 2225 East Bayshore Road, P. 0. Box 51470 PE 61102F * Palo Al%’o. CA 94303 3400 00 01 I I. CONTROLLING OFFICE NAME AND ADDRESS t2. REPORT

The Rolls Royce Allison RB580 turbofan - Matching the market requirement for regional transport

DOE Office of Scientific and Technical Information (OSTI.GOV)

Sadler, J.H.R.; Peacock, N.J.; Snyder, L.

1989-01-01

The RB580 high bypass turbofan engine has a thrust growth capability to 10,000 lb and has been optimized for efficient operation in regional markets involving 50-70 seat airliners with higher-than-turboprop cruise speeds. The two-spool engine configuration achieves an overall pressure ratio of 24 and features a single-stage wide-chord fan for high efficiency/low noise operation. The highly modular design of the configuration facilitates maintenance and repair; a dual-redundant full-authority digital electronic control system is incorporated. An SFC reduction of the order of 10 percent at cruise thrust is achieved, relative to current engines of comparable thrust class.

White House nominates nuclear commissioner

NASA Astrophysics Data System (ADS)

Showstack, Randy

2012-06-01

Just 3 days after U.S. Nuclear Regulatory Commission chairman Gregory Jaczko announced his intention to resign (Eos, 93(22), 211, doi:10.1029/2012EO220005, 2012), President Barack Obama nominated Allison Macfarlane to serve out the remainder of Jaczko's term, through June 2013. The White House announced that upon her appointment, Macfarlane would be designated as chair of the commission. Macfarlane is an associate professor of environmental science and policy at George Mason University. A member of the Blue Ribbon Commission on America's Nuclear Future from March 2010 to January 2012, she is also the author of the 2006 book Uncertainty Underground: Yucca Mountain and the Nation's High-Level Nuclear Waste and is an AGU member.

Type 2 Diabetes Education and Support in a Virtual Environment: A Secondary Analysis of Synchronously Exchanged Social Interaction and Support.

PubMed

Lewinski, Allison A; Anderson, Ruth A; Vorderstrasse, Allison A; Fisher, Edwin B; Pan, Wei; Johnson, Constance M

2018-02-21

Virtual environments (VEs) facilitate interaction and support among individuals with chronic illness, yet the characteristics of these VE interactions remain unknown. The objective of this study was to describe social interaction and support among individuals with type 2 diabetes (T2D) who interacted in a VE. Data included VE-mediated synchronous conversations and text-chat and asynchronous emails and discussion board posts from a study that facilitated interaction among individuals with T2D and diabetes educators (N=24) in 2 types of sessions: education and support. VE interactions consisted of communication techniques (how individuals interact in the VE), expressions of self-management (T2D-related topics), depth (personalization of topics), and breadth (number of topics discussed). Individuals exchanged support more often in the education (723/1170, 61.79%) than in the support (406/1170, 34.70%) sessions or outside session time (41/1170, 3.50%). Of all support exchanges, 535/1170 (45.73%) were informational, 377/1170 (32.22%) were emotional, 217/1170 (18.55%) were appraisal, and 41/1170 (3.50%) were instrumental. When comparing session types, education sessions predominately provided informational support (357/723, 49.4%), and the support sessions predominately provided emotional (159/406, 39.2%) and informational (159/406, 39.2%) support. VE-mediated interactions resemble those in face-to-face environments, as individuals in VEs engage in bidirectional exchanges with others to obtain self-management education and support. Similar to face-to-face environments, individuals in the VE revealed personal information, sought information, and exchanged support during the moderated education sessions and unstructured support sessions. With this versatility, VEs are able to contribute substantially to support for those with diabetes and, very likely, other chronic diseases. ©Allison A Lewinski, Ruth A Anderson, Allison A Vorderstrasse, Edwin B Fisher, Wei Pan, Constance M Johnson. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 21.02.2018.

Erosion Coatings Developed to Increase the Life and Durability of Composites

NASA Technical Reports Server (NTRS)

Sutter, James K.; Naik, Subhash K.; Bowman, Cheryl L.; Siefker, Robert; Miyoshi, Kazuhisa; Perusek, Gail P.

2004-01-01

Both the NASA Glenn Research Center and the Allison Advanced Development Company (AADC) have worked to develop and demonstrate erosion-resistant coatings that would increase the life and durability of composite materials used in commercial aircraft engines. These composite materials reduce component weight by 20 to 30 percent and result in less fuel burn and emissions and more fuel savings. Previously, however, their use was limited because of poor erosion resistance, which causes concerns about safety and leads to high maintenance costs. The coatings were tested by the University of Cincinnati, and the composites were manufactured by Texas Composites and coated by Engelhard and NASA Glenn. Rolls-Royce Corporation uses composite materials, which are stronger and less dense than steel or titanium, to make bypass vanes for their AE3007 engines. These engines are widely used in regional jet aircraft (Embraer) and unmanned air vehicles such as the Northrop Grumman Global Hawk. Coatings developed by NASA/Rolls-Royce can reduce erosion from abrasive materials and from impurities in the air that pass over these vanes, allowing Rolls-Royce to take advantage of the benefits of composite materials over titanium without the added costs of increased maintenance and/or engine failure. The Higher Operating Temperature Propulsion Components (HOTPC) Project developed cost-effective, durable coatings as part of NASA's goal to increase aviation system capacity growth. These erosion coatings will reduce the number of special inspections or instances of discontinued service due to erosion, allowing aircraft capacity to be maintained without inconveniencing the traveling public. A specific example of extending component life showed that these coatings increased the life of graphite fiber and polymer composite bypass vanes up to 8 times over that of the uncoated vanes. This increased durability allows components to operate to full design life without the fear of wear or failure. Recently, Rolls-Royce completed over 2000 hr of engine testing with the coated fan exit bypass vanes. There was no loss of coating after nearly 5000 typical engine cycles. Midway through the engine tests, the coated vanes were removed from the engine during a scheduled maintenance and inspection period. The vanes were shipped back to Glenn, where they underwent further stress testing in the Structural Dynamics Lab, mimicking more extreme conditions than those typical of the AE3007 engine cycle. These vanes were then replaced in the AE3007 and subjected to another 1000 hr of engine tests. Once again, there was no loss of coating and only a minimal appearance of cracking.

Challenges faced when identifying patients for combination immunotherapy.

PubMed

Ernstoff, Marc S; Gandhi, Shipra; Pandey, Manu; Puzanov, Igor; Grivas, Petros; Montero, Alberto; Velcheti, Vamsidhar; Turk, Mary Jo; Diaz-Montero, Claudia Marcela; Lewis, Lionel D; Morrison, Carl

2017-08-01

In 1996, Jim Allison demonstrated that blocking the immune regulatory molecule CTLA-4 with anit-CTLA4 antibody led to enhance tumor responses in mice. It would take an additional 15 years for human studies to confirm the potency and clinical efficacy of anti-CTLA4, ultimately leading to US FDA approval of the first checkpoint inhibitor, ipilimumab. Now with a plethora of immune-modulating agents demonstrating single agent safety and benefit across many tumor types, investigation on the optimal combination of immune-based therapies has begun in earnest. While there are many challenges, a central one is how to select which combination for which patient is the best. Here we review the current approaches that a practitioner can use to achieve this therapeutic goal.

Implanted component faults and their effects on gas turbine engine performance

DOE Office of Scientific and Technical Information (OSTI.GOV)

MacLeod, J.D.; Taylor, V.; Laflamme, J.C.G.

Under the sponsorship of the Canadian Department of National Defence, the Engine Laboratory of the National Research Council of Canada (NRCC) has established a program for the evaluation of component deterioration on gas turbine engine performance. The effect is aimed at investigating the effects of typical in-service faults on the performance characteristics of each individual engine component. The objective of the program is the development of a generalized fault library, which will be used with fault identification techniques in the field, to reduce unscheduled maintenance. To evaluate the effects of implanted faults on the performance of a single spool engine,more » such as an Allison T56 turboprop engine, a series of faulted parts were installed. For this paper the following faults were analyzed: (a) first-stage turbine nozzle erosion damage; (b) first-stage turbine rotor blade untwist; (c) compressor seal wear; (d) first and second-stage compressor blade tip clearance increase. This paper describes the project objectives, the experimental installation, and the results of the fault implantation on engine performance. Discussed are performance variations on both engine and component characteristics. As the performance changes were significant, a rigorous measurement uncertainty analysis is included.« less

Space Shuttle Program

NASA Image and Video Library

2012-09-12

Ronnie Rigney (r), chief of the Propulsion Test Office in the Project Directorate at Stennis Space Center, stands with agency colleagues to receive the prestigious American Institute of Aeronautics and Astronautics George M. Low Space Transportation Award on Sept. 12. Rigney accepted the award on behalf of the NASA and contractor team at Stennis for their support of the Space Shuttle Program that ended last summer. From 1975 to 2009, Stennis Space Center tested every main engine used to power 135 space shuttle missions. Stennis continued to provide flight support services through the end of the Space Shuttle Program in July 2011. The center also supported transition and retirement of shuttle hardware and assets through September 2012. The 2012 award was presented to the space shuttle team 'for excellence in the conception, development, test, operation and retirement of the world's first and only reusable space transportation system.' Joining Rigney for the award ceremony at the 2012 AIAA Conference in Pasadena, Calif., were: (l to r) Allison Zuniga, NASA Headquarters; Michael Griffin, former NASA administrator; Don Noah, Johnson Space Center in Houston; Steve Cash, Marshall Space Flight Center in Huntsville, Ala.; and Pete Nickolenko, Kennedy Space Center in Florida.

Can walking motions improve visually induced rotational self-motion illusions in virtual reality?

PubMed

Riecke, Bernhard E; Freiberg, Jacob B; Grechkin, Timofey Y

2015-02-04

Illusions of self-motion (vection) can provide compelling sensations of moving through virtual environments without the need for complex motion simulators or large tracked physical walking spaces. Here we explore the interaction between biomechanical cues (stepping along a rotating circular treadmill) and visual cues (viewing simulated self-rotation) for providing stationary users a compelling sensation of rotational self-motion (circular vection). When tested individually, biomechanical and visual cues were similarly effective in eliciting self-motion illusions. However, in combination they yielded significantly more intense self-motion illusions. These findings provide the first compelling evidence that walking motions can be used to significantly enhance visually induced rotational self-motion perception in virtual environments (and vice versa) without having to provide for physical self-motion or motion platforms. This is noteworthy, as linear treadmills have been found to actually impair visually induced translational self-motion perception (Ash, Palmisano, Apthorp, & Allison, 2013). Given the predominant focus on linear walking interfaces for virtual-reality locomotion, our findings suggest that investigating circular and curvilinear walking interfaces offers a promising direction for future research and development and can help to enhance self-motion illusions, presence and immersion in virtual-reality systems. © 2015 ARVO.

High-density fuel effects. Final report, September 1985-April 1988

DOE Office of Scientific and Technical Information (OSTI.GOV)

Rizk, N.K.; Oechsie, V.L.; Ross, P.T.

1988-08-18

The purpose of this program was to determine, by combustor rig tests and data evaluation, the effects of the high-density fuel properties on the performance and durability of the Allison T56-A-15 combustion system. Four high-density fuels in addition to baseline JP4 were evaluated in the effort. The rig-test program included: nozzle-flow bench testing, aerothermal performance and wall temperature, flame stability and ignition, injector coking and plugging, and flow-transient effect. The data-evaluation effort involved the utilization of empirical correlations in addition to analytical multidimensional tools to analyze the performance of the combustor. The modifications required to optimize the performance with high-densitymore » fuels were suggested and the expected improvement in performance was evaluated.« less

KSC-2012-5946

NASA Image and Video Library

2012-10-12

VANDENBERG AFB, Calif. – A Centaur upper stage is lifted onto the first stage booster of a United Launch Alliance Atlas V at the launch pad at Space Launch Complex-3E at Vandenberg Air Force Base, Calif. in preparation for the launch of the Landsat Data Continuity Mission. The Landsat Data Continuity Mission LDCM is the future of Landsat satellites. It will continue to obtain valuable data and imagery to be used in agriculture, education, business, science, and government. The Landsat Program provides repetitive acquisition of high resolution multispectral data of the Earth's surface on a global basis. The data from the Landsat spacecraft constitute the longest record of the Earth's continental surfaces as seen from space. It is a record unmatched in quality, detail, coverage, and value. Launch is planned for Feb. 2013. Photo credit: NASA/Roy Allison

KSC-2012-5947

NASA Image and Video Library

2012-10-12

VANDENBERG AFB, Calif. – A Centaur upper stage is lifted onto the first stage booster of a United Launch Alliance Atlas V at the launch pad at Space Launch Complex-3E at Vandenberg Air Force Base, Calif. in preparation for the launch of the Landsat Data Continuity Mission. The Landsat Data Continuity Mission LDCM is the future of Landsat satellites. It will continue to obtain valuable data and imagery to be used in agriculture, education, business, science, and government. The Landsat Program provides repetitive acquisition of high resolution multispectral data of the Earth's surface on a global basis. The data from the Landsat spacecraft constitute the longest record of the Earth's continental surfaces as seen from space. It is a record unmatched in quality, detail, coverage, and value. Launch is planned for Feb. 2013. Photo credit: NASA/Roy Allison

KSC-2012-5952

NASA Image and Video Library

2012-10-13

VANDENBERG AFB, Calif. – The boattail element is lifted onto the first stage booster of a United Launch Alliance Atlas V at the launch pad at Space Launch Complex-3E at Vandenberg Air Force Base, Calif. in preparation for the launch of the Landsat Data Continuation Mission. The Landsat Data Continuity Mission LDCM is the future of Landsat satellites. It will continue to obtain valuable data and imagery to be used in agriculture, education, business, science, and government. The Landsat Program provides repetitive acquisition of high resolution multispectral data of the Earth's surface on a global basis. The data from the Landsat spacecraft constitute the longest record of the Earth's continental surfaces as seen from space. It is a record unmatched in quality, detail, coverage, and value. Launch is planned for Feb. 2013. Photo credit: NASA/Roy Allison

KSC-2012-5951

NASA Image and Video Library

2012-10-12

VANDENBERG AFB, Calif. – A Centaur upper stage is lifted onto the first stage booster of a United Launch Alliance Atlas V at the launch pad at Space Launch Complex-3E at Vandenberg Air Force Base, Calif. in preparation for the launch of the Landsat Data Continuity Mission. The Landsat Data Continuity Mission LDCM is the future of Landsat satellites. It will continue to obtain valuable data and imagery to be used in agriculture, education, business, science, and government. The Landsat Program provides repetitive acquisition of high resolution multispectral data of the Earth's surface on a global basis. The data from the Landsat spacecraft constitute the longest record of the Earth's continental surfaces as seen from space. It is a record unmatched in quality, detail, coverage, and value. Launch is planned for Feb. 2013. Photo credit: NASA/Roy Allison

KSC-2012-5926

NASA Image and Video Library

2012-10-08

VANDENBERG AFB, Calif. – A truck moves the first stage booster of a United Launch Alliance Atlas V to Space Launch Complex-3E at Vandenberg Air Force Base, Calif. in preparation for the launch of the Landsat Data Continuity Mission. The Landsat Data Continuity Mission, or LDCM, is the future of Landsat satellites. It will continue to obtain valuable data and imagery to be used in agriculture, education, business, science, and government. The Landsat Program provides repetitive acquisition of high resolution multispectral data of the Earth's surface on a global basis. The data from the Landsat spacecraft constitute the longest record of the Earth's continental surfaces as seen from space. It is a record unmatched in quality, detail, coverage, and value. Launch is planned for Feb. 2013. Photo credit: NASA/Roy Allison

KSC-2012-5922

NASA Image and Video Library

2012-10-08

VANDENBERG AFB, Calif. – A truck moves the first stage booster of a United Launch Alliance Atlas V to Space Launch Complex-3E at Vandenberg Air Force Base, Calif. in preparation for the launch of the Landsat Data Continuity Mission. The Landsat Data Continuity Mission, or LDCM, is the future of Landsat satellites. It will continue to obtain valuable data and imagery to be used in agriculture, education, business, science, and government. The Landsat Program provides repetitive acquisition of high resolution multispectral data of the Earth's surface on a global basis. The data from the Landsat spacecraft constitute the longest record of the Earth's continental surfaces as seen from space. It is a record unmatched in quality, detail, coverage, and value. Launch is planned for Feb. 2013. Photo credit: NASA/Roy Allison

KSC-2012-5939

NASA Image and Video Library

2012-10-09

VANDENBERG AFB, Calif. – The first stage booster of a United Launch Alliance Atlas V is raised onto the launch pad at Space Launch Complex-3E at Vandenberg Air Force Base, Calif. in preparation for the launch of the Landsat Data Continuity Mission. The Landsat Data Continuity Mission LDCM is the future of Landsat satellites. It will continue to obtain valuable data and imagery to be used in agriculture, education, business, science, and government. The Landsat Program provides repetitive acquisition of high resolution multispectral data of the Earth's surface on a global basis. The data from the Landsat spacecraft constitute the longest record of the Earth's continental surfaces as seen from space. It is a record unmatched in quality, detail, coverage, and value. Launch is planned for Feb. 2013. Photo credit: NASA/Roy Allison

KSC-2012-5932

NASA Image and Video Library

2012-10-08

VANDENBERG AFB, Calif. – A truck moves the first stage booster of a United Launch Alliance Atlas V to Space Launch Complex-3E at Vandenberg Air Force Base, Calif. in preparation for the launch of the Landsat Data Continuity Mission. The Landsat Data Continuity Mission, or LDCM, is the future of Landsat satellites. It will continue to obtain valuable data and imagery to be used in agriculture, education, business, science, and government. The Landsat Program provides repetitive acquisition of high resolution multispectral data of the Earth's surface on a global basis. The data from the Landsat spacecraft constitute the longest record of the Earth's continental surfaces as seen from space. It is a record unmatched in quality, detail, coverage, and value. Launch is planned for Feb. 2013. Photo credit: NASA/Roy Allison

KSC-2012-5940

NASA Image and Video Library

2012-10-09

VANDENBERG AFB, Calif. – The first stage booster of a United Launch Alliance Atlas V is raised onto the launch pad at Space Launch Complex-3E at Vandenberg Air Force Base, Calif. in preparation for the launch of the Landsat Data Continuity Mission. The Landsat Data Continuity Mission LDCM is the future of Landsat satellites. It will continue to obtain valuable data and imagery to be used in agriculture, education, business, science, and government. The Landsat Program provides repetitive acquisition of high resolution multispectral data of the Earth's surface on a global basis. The data from the Landsat spacecraft constitute the longest record of the Earth's continental surfaces as seen from space. It is a record unmatched in quality, detail, coverage, and value. Launch is planned for Feb. 2013. Photo credit: NASA/Roy Allison

KSC-2012-5925

NASA Image and Video Library

2012-10-08

VANDENBERG AFB, Calif. – A truck moves the first stage booster of a United Launch Alliance Atlas V to Space Launch Complex-3E at Vandenberg Air Force Base, Calif. in preparation for the launch of the Landsat Data Continuity Mission. The Landsat Data Continuity Mission, or LDCM, is the future of Landsat satellites. It will continue to obtain valuable data and imagery to be used in agriculture, education, business, science, and government. The Landsat Program provides repetitive acquisition of high resolution multispectral data of the Earth's surface on a global basis. The data from the Landsat spacecraft constitute the longest record of the Earth's continental surfaces as seen from space. It is a record unmatched in quality, detail, coverage, and value. Launch is planned for Feb. 2013. Photo credit: NASA/Roy Allison

KSC-2012-5938

NASA Image and Video Library

2012-10-09

VANDENBERG AFB, Calif. – Cranes raise the first stage booster of a United Launch Alliance Atlas V onto the launch pad at Space Launch Complex-3E at Vandenberg Air Force Base, Calif. in preparation for the launch of the Landsat Data Continuity Mission. The Landsat Data Continuity Mission LDCM is the future of Landsat satellites. It will continue to obtain valuable data and imagery to be used in agriculture, education, business, science, and government. The Landsat Program provides repetitive acquisition of high resolution multispectral data of the Earth's surface on a global basis. The data from the Landsat spacecraft constitute the longest record of the Earth's continental surfaces as seen from space. It is a record unmatched in quality, detail, coverage, and value. Launch is planned for Feb. 2013. Photo credit: NASA/Roy Allison

KSC-2012-5950

NASA Image and Video Library

2012-10-12

VANDENBERG AFB, Calif. – A Centaur upper stage is lifted onto the first stage booster of a United Launch Alliance Atlas V at the launch pad at Space Launch Complex-3E at Vandenberg Air Force Base, Calif. in preparation for the launch of the Landsat Data Continuation Mission. The Landsat Data Continuity Mission LDCM is the future of Landsat satellites. It will continue to obtain valuable data and imagery to be used in agriculture, education, business, science, and government. The Landsat Program provides repetitive acquisition of high resolution multispectral data of the Earth's surface on a global basis. The data from the Landsat spacecraft constitute the longest record of the Earth's continental surfaces as seen from space. It is a record unmatched in quality, detail, coverage, and value. Launch is planned for Feb. 2013. Photo credit: NASA/Roy Allison

KSC-2012-5931

NASA Image and Video Library

2012-10-08

VANDENBERG AFB, Calif. – A truck moves the first stage booster of a United Launch Alliance Atlas V to Space Launch Complex-3E at Vandenberg Air Force Base, Calif. in preparation for the launch of the Landsat Data Continuity Mission. The Landsat Data Continuity Mission, or LDCM, is the future of Landsat satellites. It will continue to obtain valuable data and imagery to be used in agriculture, education, business, science, and government. The Landsat Program provides repetitive acquisition of high resolution multispectral data of the Earth's surface on a global basis. The data from the Landsat spacecraft constitute the longest record of the Earth's continental surfaces as seen from space. It is a record unmatched in quality, detail, coverage, and value. Launch is planned for Feb. 2013. Photo credit: NASA/Roy Allison

KSC-2012-5942

NASA Image and Video Library

2012-10-10

VANDENBERG AFB, Calif. – The interstage booster segment is lifted onto the first stage booster of a United Launch Alliance Atlas V at the launch pad at Space Launch Complex-3E at Vandenberg Air Force Base, Calif. in preparation for the launch of the Landsat Data Continuation Mission. The Landsat Data Continuity Mission LDCM is the future of Landsat satellites. It will continue to obtain valuable data and imagery to be used in agriculture, education, business, science, and government. The Landsat Program provides repetitive acquisition of high resolution multispectral data of the Earth's surface on a global basis. The data from the Landsat spacecraft constitute the longest record of the Earth's continental surfaces as seen from space. It is a record unmatched in quality, detail, coverage, and value. Launch is planned for Feb. 2013. Photo credit: NASA/Roy Allison

KSC-2012-5941

NASA Image and Video Library

2012-10-09

VANDENBERG AFB, Calif. – The first stage booster of a United Launch Alliance Atlas V is raised onto the launch pad at Space Launch Complex-3E at Vandenberg Air Force Base, Calif. in preparation for the launch of the Landsat Data Continuity Mission. The Landsat Data Continuity Mission LDCM is the future of Landsat satellites. It will continue to obtain valuable data and imagery to be used in agriculture, education, business, science, and government. The Landsat Program provides repetitive acquisition of high resolution multispectral data of the Earth's surface on a global basis. The data from the Landsat spacecraft constitute the longest record of the Earth's continental surfaces as seen from space. It is a record unmatched in quality, detail, coverage, and value. Launch is planned for Feb. 2013. Photo credit: NASA/Roy Allison

KSC-2012-5924

NASA Image and Video Library

2012-10-08

VANDENBERG AFB, Calif. – A truck moves the first stage booster of a United Launch Alliance Atlas V to Space Launch Complex-3E at Vandenberg Air Force Base, Calif. in preparation for the launch of the Landsat Data Continuity Mission. The Landsat Data Continuity Mission, or LDCM, is the future of Landsat satellites. It will continue to obtain valuable data and imagery to be used in agriculture, education, business, science, and government. The Landsat Program provides repetitive acquisition of high resolution multispectral data of the Earth's surface on a global basis. The data from the Landsat spacecraft constitute the longest record of the Earth's continental surfaces as seen from space. It is a record unmatched in quality, detail, coverage, and value. Launch is planned for Feb. 2013. Photo credit: NASA/Roy Allison

KSC-2012-5945

NASA Image and Video Library

2012-10-12

VANDENBERG AFB, Calif. – A Centaur upper stage is lifted onto the first stage booster of a United Launch Alliance Atlas V at the launch pad at Space Launch Complex-3E at Vandenberg Air Force Base, Calif. in preparation for the launch of the Landsat Data Continuity Mission. The Landsat Data Continuity Mission LDCM is the future of Landsat satellites. It will continue to obtain valuable data and imagery to be used in agriculture, education, business, science, and government. The Landsat Program provides repetitive acquisition of high resolution multispectral data of the Earth's surface on a global basis. The data from the Landsat spacecraft constitute the longest record of the Earth's continental surfaces as seen from space. It is a record unmatched in quality, detail, coverage, and value. Launch is planned for Feb. 2013. Photo credit: NASA/Roy Allison

KSC-2012-5948

NASA Image and Video Library

2012-10-12

VANDENBERG AFB, Calif. – A Centaur upper stage is lifted onto the first stage booster of a United Launch Alliance Atlas V at the launch pad at Space Launch Complex-3E at Vandenberg Air Force Base, Calif. in preparation for the launch of the Landsat Data Continuation Mission. The Landsat Data Continuity Mission LDCM is the future of Landsat satellites. It will continue to obtain valuable data and imagery to be used in agriculture, education, business, science, and government. The Landsat Program provides repetitive acquisition of high resolution multispectral data of the Earth's surface on a global basis. The data from the Landsat spacecraft constitute the longest record of the Earth's continental surfaces as seen from space. It is a record unmatched in quality, detail, coverage, and value. Launch is planned for Feb. 2013. Photo credit: NASA/Roy Allison

Gender performativity in physics: affordances or only constraints?

NASA Astrophysics Data System (ADS)

Danielsson, Anna T.; Lundin, Mattias

2014-06-01

In this forum we engage in a dialogue with Allison Gonsalves's paper `"Physics and the girly girl—there is a contradiction somewhere": Doctoral students' positioning around discourses of gender and competence in physics'. In her paper Gonsalves uses a sociocultural approach to examine women doctoral students' stories about becoming physicists. In doing so her paper focuses on how discourses of masculinity and femininity can create available and unavailable positions for the women students. In this dialogue we do a parallel reading of two of the student narratives presented by Gonsalves, using Judith Butler's (1990) concept of discursive agency as a means to more explicitly bring the affordances for women identity constitution offered by their localized physicist context to the fore, rather focusing on its, often more visible, constraints.

KSC-2012-5927

NASA Image and Video Library

2012-10-08

VANDENBERG AFB, Calif. – A truck moves the first stage booster of a United Launch Alliance Atlas V to Space Launch Complex-3E at Vandenberg Air Force Base, Calif. in preparation for the launch of the Landsat Data Continuity Mission. The Landsat Data Continuity Mission, or LDCM, is the future of Landsat satellites. It will continue to obtain valuable data and imagery to be used in agriculture, education, business, science, and government. The Landsat Program provides repetitive acquisition of high resolution multispectral data of the Earth's surface on a global basis. The data from the Landsat spacecraft constitute the longest record of the Earth's continental surfaces as seen from space. It is a record unmatched in quality, detail, coverage, and value. Launch is planned for Feb. 2013. Photo credit: NASA/Roy Allison

KSC-2012-5921

NASA Image and Video Library

2012-10-08

VANDENBERG AFB, Calif. – A truck moves the first stage booster of a United Launch Alliance Atlas V to Space Launch Complex-3E at Vandenberg Air Force Base, Calif. in preparation for the launch of the Landsat Data Continuity Mission. The Landsat Data Continuity Mission, or LDCM, is the future of Landsat satellites. It will continue to obtain valuable data and imagery to be used in agriculture, education, business, science, and government. The Landsat Program provides repetitive acquisition of high resolution multispectral data of the Earth's surface on a global basis. The data from the Landsat spacecraft constitute the longest record of the Earth's continental surfaces as seen from space. It is a record unmatched in quality, detail, coverage, and value. Launch is planned for Feb. 2013. Photo credit: NASA/Roy Allison

KSC-2012-5949

NASA Image and Video Library

2012-10-12

VANDENBERG AFB, Calif. – A Centaur upper stage is lifted onto the first stage booster of a United Launch Alliance Atlas V at the launch pad at Space Launch Complex-3E at Vandenberg Air Force Base, Calif. in preparation for the launch of the Landsat Data Continuity Mission. The Landsat Data Continuity Mission LDCM is the future of Landsat satellites. It will continue to obtain valuable data and imagery to be used in agriculture, education, business, science, and government. The Landsat Program provides repetitive acquisition of high resolution multispectral data of the Earth's surface on a global basis. The data from the Landsat spacecraft constitute the longest record of the Earth's continental surfaces as seen from space. It is a record unmatched in quality, detail, coverage, and value. Launch is planned for Feb. 2013. Photo credit: NASA/Roy Allison

KSC-2012-5930

NASA Image and Video Library

2012-10-08

VANDENBERG AFB, Calif. – A truck moves the first stage booster of a United Launch Alliance Atlas V to Space Launch Complex-3E at Vandenberg Air Force Base, Calif. in preparation for the launch of the Landsat Data Continuity Mission. The Landsat Data Continuity Mission, or LDCM, is the future of Landsat satellites. It will continue to obtain valuable data and imagery to be used in agriculture, education, business, science, and government. The Landsat Program provides repetitive acquisition of high resolution multispectral data of the Earth's surface on a global basis. The data from the Landsat spacecraft constitute the longest record of the Earth's continental surfaces as seen from space. It is a record unmatched in quality, detail, coverage, and value. Launch is planned for Feb. 2013. Photo credit: NASA/Roy Allison

KSC-2012-5929

NASA Image and Video Library

2012-10-08

VANDENBERG AFB, Calif. – A truck moves the first stage booster of a United Launch Alliance Atlas V to Space Launch Complex-3E at Vandenberg Air Force Base, Calif. in preparation for the launch of the Landsat Data Continuity Mission. The Landsat Data Continuity Mission, or LDCM, is the future of Landsat satellites. It will continue to obtain valuable data and imagery to be used in agriculture, education, business, science, and government. The Landsat Program provides repetitive acquisition of high resolution multispectral data of the Earth's surface on a global basis. The data from the Landsat spacecraft constitute the longest record of the Earth's continental surfaces as seen from space. It is a record unmatched in quality, detail, coverage, and value. Launch is planned for Feb. 2013. Photo credit: NASA/Roy Allison

KSC-2012-5937

NASA Image and Video Library

2012-10-09

VANDENBERG AFB, Calif. – Technicians prepare to raise the first stage booster of a United Launch Alliance Atlas V onto the launch pad at Space Launch Complex-3E at Vandenberg Air Force Base, Calif. in preparation for the launch of the Landsat Data Continuity Mission. The Landsat Data Continuity Mission LDCM is the future of Landsat satellites. It will continue to obtain valuable data and imagery to be used in agriculture, education, business, science, and government. The Landsat Program provides repetitive acquisition of high resolution multispectral data of the Earth's surface on a global basis. The data from the Landsat spacecraft constitute the longest record of the Earth's continental surfaces as seen from space. It is a record unmatched in quality, detail, coverage, and value. Launch is planned for Feb. 2013. Photo credit: NASA/Roy Allison

KSC-2012-5928

NASA Image and Video Library

2012-10-08

VANDENBERG AFB, Calif. – A truck moves the first stage booster of a United Launch Alliance Atlas V to Space Launch Complex-3E at Vandenberg Air Force Base, Calif. in preparation for the launch of the Landsat Data Continuity Mission. The Landsat Data Continuity Mission, or LDCM, is the future of Landsat satellites. It will continue to obtain valuable data and imagery to be used in agriculture, education, business, science, and government. The Landsat Program provides repetitive acquisition of high resolution multispectral data of the Earth's surface on a global basis. The data from the Landsat spacecraft constitute the longest record of the Earth's continental surfaces as seen from space. It is a record unmatched in quality, detail, coverage, and value. Launch is planned for Feb. 2013. Photo credit: NASA/Roy Allison

Wave rotor demonstrator engine assessment

NASA Technical Reports Server (NTRS)

Snyder, Philip H.

1996-01-01

The objective of the program was to determine a wave rotor demonstrator engine concept using the Allison 250 series engine. The results of the NASA LERC wave rotor effort were used as a basis for the wave rotor design. A wave rotor topped gas turbine engine was identified which incorporates five basic requirements of a successful demonstrator engine. Predicted performance maps of the wave rotor cycle were used along with maps of existing gas turbine hardware in a design point study. The effects of wave rotor topping on the engine cycle and the subsequent need to rematch compressor and turbine sections in the topped engine were addressed. Comparison of performance of the resulting engine is made on the basis of wave rotor topped engine versus an appropriate baseline engine using common shaft compressor hardware. The topped engine design clearly demonstrates an impressive improvement in shaft horsepower (+11.4%) and SFC (-22%). Off design part power engine performance for the wave rotor topped engine was similarly improved including that at engine idle conditions. Operation of the engine at off design was closely examined with wave rotor operation at less than design burner outlet temperatures and rotor speeds. Challenges identified in the development of a demonstrator engine are discussed. A preliminary design was made of the demonstrator engine including wave rotor to engine transition ducts. Program cost and schedule for a wave rotor demonstrator engine fabrication and test program were developed.

Analysis of Coupled Seals, Secondary and Powerstream Flow Fields in Aircraft and Aerospace Turbomachines

NASA Technical Reports Server (NTRS)

Athavale, M. M.; Ho, Y. H.; Prezekwas, A. J.

2005-01-01

Higher power, high efficiency gas turbine engines require optimization of the seals and secondary flow systems as well as their impact on the powerstream. This work focuses on two aspects: 1. To apply the present day CFD tools (SCISEAL) to different real-life secondary flow applications from different original equipment manufacturers (OEM s) to provide feedback data and 2. Develop a computational methodology for coupled time-accurate simulation of the powerstream and secondary flow with emphasis on the interaction between the disk-cavity and rim seals flows with the powerstream (SCISEAL-MS-TURBO). One OEM simulation was of the Allison Engine Company T-56 turbine drum cavities including conjugate heat transfer with good agreement with data and provided design feedback information. Another was the GE aspirating seal where the 3-D CFD simulations played a major role in analysis and modification of that seal configuration. The second major objective, development of a coupled flow simulation capability was achieved by using two codes MS-TURBO for the powerstream and SCISEAL for the secondary flows with an interface coupling algorithm. The coupled code was tested against data from three differed configurations: 1. bladeless-rotor-stator-cavity turbine test rig, 2. UTRC high pressure turbine test rig, and, 3. the NASA Low-Speed-Air Compressor rig (LSAC) with results and limitations discussed herein.

The Alternative Low Noise Fan

NASA Technical Reports Server (NTRS)

Dittmar, James H.; Elliott, David M.; Jeracki, Robert J.; Moore, Royce D.; Parrott, Tony L.

2000-01-01

A 106 bladed fan with a design takeoff tip speed of 1100 ft/sec was hypothesized as reducing perceived noise because of the shift of the blade passing harmonics to frequencies beyond the perceived noise rating range. A 22 in. model of this Alternative Low Noise Fan, ALNF, was tested in the NASA Glenn 9x 15 Wind Tunnel. 'Me fan was tested with a 7 vane long chord stator assembly and a 70 vane conventional stator assembly in both hard and acoustically treated configurations. In addition a partially treated 7 vane configuration was tested wherein the acoustic material between the 7 long chord stators was made inactive. The noise data from the 106 bladed fan with 7 long chord stators in a hard configuration was shown to be around 4 EPNdB quieter than a low tip speed Allison fan at takeoff and around 5 EPNdB quieter at approach. Although the tone noise behaved as hypothesized, the majority of this noise reduction was from reduced broadband noise related to the large number of rotor blades. This 106 bladed ALNF is a research fan designed to push the technology limits and as such is probably not a practical device with present materials technology. However, a low tip speed fan with around 50 blades would be a practical device and calculations indicate that it could be 2 to 3 EPNdB quieter at takeoff and 3 to 4 EPNdB quieter at approach than the Allison fan. 7 vane data compared with 70 vane data indicated that the tone noise was controlled by rotor wake-stator interaction but that the broadband noise is probably controlled by the interaction of the rotor with incoming flows. A possible multiple pure tone noise reduction technique for a fan/acoustic treatment system was identified. The data from the fully treated configuration showed significant noise reductions over a large frequency range thereby providing a real tribute to this bulk absorber treatment design. The tone noise data with the partially treated 7 vane configuration indicated that acoustic material in the source noise generation region may be more effective than similar material outside of the generation region.

Measurement of ion species in high current ECR H⁺/D⁺ ion source for IFMIF (International Fusion Materials Irradiation Facility).

PubMed

Shinto, K; Senée, F; Ayala, J-M; Bolzon, B; Chauvin, N; Gobin, R; Ichimiya, R; Ihara, A; Ikeda, Y; Kasugai, A; Kitano, T; Kondo, K; Marqueta, A; Okumura, Y; Takahashi, H; Valette, M

2016-02-01

Ion species ratio of high current positive hydrogen/deuterium ion beams extracted from an electron-cyclotron-resonance ion source for International Fusion Materials Irradiation Facility accelerator was measured by the Doppler shift Balmer-α line spectroscopy. The proton (H(+)) ratio at the middle of the low energy beam transport reached 80% at the hydrogen ion beam extraction of 100 keV/160 mA and the deuteron (D(+)) ratio reached 75% at the deuterium ion beam extraction of 100 keV/113 mA. It is found that the H(+) ratio measured by the spectroscopy gives lower than that derived from the phase-space diagram measured by an Allison scanner type emittance monitor. The H(+)/D(+) ratio estimated by the emittance monitor was more than 90% at those extraction currents.

Effects of Subsonic Aircraft on Aerosols and Cloudiness in the Upper Troposphere and Lower Stratosphere

NASA Technical Reports Server (NTRS)

Detwiler, Andrew G.

1997-01-01

This work was accomplished primarily by Allison G. Wozniak, a graduate research assistant who has completed the Master of Science in Meteorology program at the South Dakota School of Mines and Technology. Ms. Wozniak was guided and assisted in her work by L. R. Johnson and the principal investigator. Invaluable guidance was supplied by Dr. James Holdeman, NASA Lewis, the manager of the Global Atmospheric Sampling Program (GASP). Dr. Gregory Nastrom, St. Cloud (Minnesota) State University, who has used the GASP data set to provide unique views of the distribution of ozone, clouds, and atmospheric waves and turbulence, in the upper troposphere/lower stratosphere region, was also extremely helpful. Finally, Dr. Terry Deshler, University of Wyoming, supplied observations from the university's upper atmospheric monitoring program for comparison to GASP data.

Sweetened beverages and health: current state of scientific understandings.

PubMed

Rippe, James M; Saltzman, Edward

2013-09-01

This article summarizes the presentations from the "Sweetened Beverages and Health: Current State of Scientific Understandings" symposium held at the ASN Annual Meeting in Boston, MA on April 23, 2013. The metabolic and health effects of sugar-sweetened beverages were discussed from a variety of points of view by 5 different presenters. Dr. David Allison drew a distinction between conjecture and proof related to sweetened beverages and obesity. Dr. Richard Mattes discussed differences between solid and liquid calories. Dr. Miguel Alonso-Alonso reviewed potential contributions of functional neuroimaging, particularly as they relate to whether sugar is potentially "addictive." Dr. Kimber Stanhope discussed work related to experiments comparing fructose to glucose. Dr. James Rippe presented evidence from randomized controlled trials from his research organization showing no differences among high-fructose corn syrup, sucrose, glucose, or fructose at normal human consumption amounts.

KSC-2012-5944

NASA Image and Video Library

2012-10-12

VANDENBERG AFB, Calif. – A Centaur upper stage is prepared for lifting onto the first stage booster of a United Launch Alliance Atlas V at the launch pad at Space Launch Complex-3E at Vandenberg Air Force Base, Calif. in preparation for the launch of the Landsat Data Continuation Mission. The Landsat Data Continuity Mission LDCM is the future of Landsat satellites. It will continue to obtain valuable data and imagery to be used in agriculture, education, business, science, and government. The Landsat Program provides repetitive acquisition of high resolution multispectral data of the Earth's surface on a global basis. The data from the Landsat spacecraft constitute the longest record of the Earth's continental surfaces as seen from space. It is a record unmatched in quality, detail, coverage, and value. Launch is planned for Feb. 2013. Photo credit: NASA/Roy Allison

KSC-2012-5943

NASA Image and Video Library

2012-10-12

VANDENBERG AFB, Calif. – A Centaur upper stage is prepared for lifting onto the first stage booster of a United Launch Alliance Atlas V at the launch pad at Space Launch Complex-3E at Vandenberg Air Force Base, Calif. in preparation for the launch of the Landsat Data Continuation Mission. The Landsat Data Continuity Mission LDCM is the future of Landsat satellites. It will continue to obtain valuable data and imagery to be used in agriculture, education, business, science, and government. The Landsat Program provides repetitive acquisition of high resolution multispectral data of the Earth's surface on a global basis. The data from the Landsat spacecraft constitute the longest record of the Earth's continental surfaces as seen from space. It is a record unmatched in quality, detail, coverage, and value. Launch is planned for Feb. 2013. Photo credit: NASA/Roy Allison

Development of a liquefaction hazard screening tool for caltrans bridge sites

USGS Publications Warehouse

Knudsen, K.-L.; Bott, J.D.J.; Woods, M.O.; McGuire, T.L.

2009-01-01

We have developed a liquefaction hazard screening tool for the California Department of Transportation (Caltrans) that is being used to evaluate the liquefaction hazard to approximately 13,000 bridge sites in California. Because of the large number of bridge sites to be evaluated, we developed a tool that makes use of parameters not typically considered in site-specific liquefaction investigations. We assessed geologic, topographic, seismic hazard, and subsurface conditions at about 100 sites of past liquefaction in California. Among the parameters we found common to many of these sites are: (a) low elevations, (b) proximity to a water body, and (c) presence of geologically youthful deposits or artificial fill materials. The nature of the study necessitated the use of readily available data, preferably datasets that are consistent across the state. The screening tool we provided to Caltrans makes use of the following parameters: (1) proximity to a water body, (2) whether the bridge crosses a water body, (3) the age of site geologic materials and the environment in which the materials were deposited, as discerned from available digital geologic maps, (4) probabilistic shaking estimates, (5) the site elevation, (6) information from available liquefaction hazard maps [covering the 9-county San Francisco Bay Area and Ventura County] and California Geological Survey (CGS) Zones of Required Investigation. For bridge sites at which subsurface boring data were available (from CGS' existing database), we calculated Displacement Potential Index values using a methodology developed by Allison Faris and Jiaer Wu. Caltrans' staff will use this hazard-screening tool, along with other tools focused on bridges and foundations, to prioritize site-specific investigations. ?? 2009 ASCE.

A Carboniferous Cabinet of Wonders: an example of how the collaboration of art and Earth Sciences can inspire conservation

NASA Astrophysics Data System (ADS)

Grey, Melissa; Rogers, Janine

2016-04-01

The Joggins Fossil Cliffs (Nova Scotia, Canada) is a UNESCO World Heritage Site representing the Late Carboniferous time period (ca. 310-325 mya). The site was formative for Charles Lyell in constructing his geological principles. It is still the best place in the world to view fossils from the Carboniferous 'Coal Age', a time when much of the coal that we use today was formed. The Joggins Fossil Institute is a not-for-profit, charitable organization that co-manages the site with the Province of Nova Scotia. Its mission is to conduct research and educate the public about Earth Sciences through interpretation (e.g., exhibits and tours of the site) and a fossil collection. Fossils are the only direct evidence of how biodiversity has changed over deep time; they are the texts and artifacts that we 'read' in order to understand the development of the earth and that can help humans decipher the deeper histories that produced us. At the Joggins Fossil Institute we primarily present the scientific history of the Carboniferous Period through the use of fossils, but we are also interested in the cultural history of coal production and usage, which is an essential part of the region's economic history. However, this industry has also contributed to climate change and the emergence of a new geological age called the Anthropocene. We encourage our visitors to connect palaeontology and coal energy consumption, and ask them to consider how different values (economic and scientific) are attributed to both coal and fossils; such questions lead directly to discussions about conservation issues. The Joggins Fossil Institute has partnered with the Faculty of Arts at nearby Mount Allison University to create an exhibit that will interrogate these questions. The medium of display that we have chosen is the "cabinet of wonders" or "cabinet of curiosity," which has a rich tradition in western cultures going back to the Renaissance. A venerable intersection of art and science, the cabinet of wonders is the cultural ancestor of contemporary museums and interpretive centers like Joggins itself. The tradition of these cabinets is to combine scientific information with aesthetic presentation to inspire "wonder" in the visitor that will lead to ethical reconsiderations. Our cabinet of wonder explores the relationships between fossils, energy, extinction, and, our ecological future. The exhibit will include fossils from the Institute's collection, paintings and archival material from Mount Allison University, and artifacts from the local mining culture of northern Nova Scotia. The exhibit will be placed in the Institute's gold LEED-certified building, an award-winning structure that exemplifies the transition from using the dirty energy of coal that was once mined here to "green" alternatives. Using both scientific knowledge and artistic representation, the cabinet articulates the intricate connections between the development of life in the Carboniferous Age, the use of coal as an energy resource, and the ways in which human behavior can affect the environment. The objective is to open up a discussion on our ecological future that respects our artistic, technological and ecological past.

My Team of Care Study: A Pilot Randomized Controlled Trial of a Web-Based Communication Tool for Collaborative Care in Patients With Advanced Cancer.

PubMed

Voruganti, Teja; Grunfeld, Eva; Jamieson, Trevor; Kurahashi, Allison M; Lokuge, Bhadra; Krzyzanowska, Monika K; Mamdani, Muhammad; Moineddin, Rahim; Husain, Amna

2017-07-18

The management of patients with complex care needs requires the expertise of health care providers from multiple settings and specialties. As such, there is a need for cross-setting, cross-disciplinary solutions that address deficits in communication and continuity of care. We have developed a Web-based tool for clinical collaboration, called Loop, which assembles the patient and care team in a virtual space for the purpose of facilitating communication around care management. The objectives of this pilot study were to evaluate the feasibility of integrating a tool like Loop into current care practices and to capture preliminary measures of the effect of Loop on continuity of care, quality of care, symptom distress, and health care utilization. We conducted an open-label pilot cluster randomized controlled trial allocating patients with advanced cancer (defined as stage III or IV disease) with ≥3 months prognosis, their participating health care team and caregivers to receive either the Loop intervention or usual care. Outcome data were collected from patients on a monthly basis for 3 months. Trial feasibility was measured with rate of uptake, as well as recruitment and system usage. The Picker Continuity of Care subscale, Palliative care Outcomes Scale, Edmonton Symptom Assessment Scale, and Ambulatory and Home Care Record were patient self-reported measures of continuity of care, quality of care, symptom distress, and health services utilization, respectively. We conducted a content analysis of messages posted on Loop to understand how the system was used. Nineteen physicians (oncologists or palliative care physicians) were randomized to the intervention or control arms. One hundred twenty-seven of their patients with advanced cancer were approached and 48 patients enrolled. Of 24 patients in the intervention arm, 20 (83.3%) registered onto Loop. In the intervention and control arms, 12 and 11 patients completed three months of follow-up, respectively. A mean of 1.2 (range: 0 to 4) additional healthcare providers with an average total of 3 healthcare providers participated per team. An unadjusted between-arm increase of +11.4 was observed on the Picker scale in favor of the intervention arm. Other measures showed negligible changes. Loop was primarily used for medical care management, symptom reporting, and appointment coordination. The results of this study show that implementation of Loop was feasible. It provides useful information for planning future studies further examining effectiveness and team collaboration. Numerically higher scores were observed for the Loop arm relative to the control arm with respect to continuity of care. Future work is required to understand the incentives and barriers to participation so that the implementation of tools like Loop can be optimized. ClinicalTrials.gov NCT02372994; https://clinicaltrials.gov/ct2/show/NCT02372994 (Archived by WebCite at http://www.webcitation.org/6r00L4Skb). ©Teja Voruganti, Eva Grunfeld, Trevor Jamieson, Allison M Kurahashi, Bhadra Lokuge, Monika K Krzyzanowska, Muhammad Mamdani, Rahim Moineddin, Amna Husain. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 18.07.2017.

Prevalence, mean intensity of infestation and host specificity of Spinturnicidae mites (Acari: Mesostigmata) on bats (Mammalia: Chiroptera) in the Pantanal, Brazil.

PubMed

Silva, Camila de Lima; Graciolli, Gustavo

2013-06-01

Acari ectoparasites were collected from bats during 12 months in the Rio Negro farm (19°34'22″S and 56°14'36″W), Aquidauana, Mato Grosso do Sul. A total of 654 bats belonging to the families Phyllostomidae, Noctilionidae, Molossidae, Vespertilionidae and Emballonuridae were captured. Only 136 bats of nine genera and 11 species were parasitised. Periglischrus iheringi Oudemans was the most abundant mite species, and this prevalence may be related to the low degree of host specificity of this species and due to the broad geographical distribution of its hosts. The greatest mean intensity was found to Periglischrus torrealbai Machado-Allison on Phyllostomus discolor Wagner (Phyllostomidae) and Periglischrus tonatii Herrin and Tipton associated with Lophostoma silviculum d'Orbigny (Phyllostomidae), which also had the highest prevalence of infestation.

Compressor coating effects on gas turbine engine performance

DOE Office of Scientific and Technical Information (OSTI.GOV)

MacLeod, J.D.; Laflamme, J.C.

1991-10-01

In an attempt to increase the time between maintenance actions and to improve performance retention of turboprop engines installed in transport and maritime patrol aircraft, the Canadian Department of National Defence is evaluating an erosion and corrosion-resistance blade coating, for use on compressors. As coatings could appreciably alter engine performance by virtue of their application thickness and surface quality, the National Research Council of Canada was asked to quantify any performance changes that could occur. A project was initiated, utilizing a new Allison T56 turboprop engine, to assess not only the performance changes resulting from the coating, but also thosemore » from dismantling and reassembling the compressor, since the compressor must be completely disassembled to apply the coating. This paper describes the project objectives, the experimental installation, and the measured effects of the coating application on compressor performance.« less

Botanical prospecting for uranium on La Ventana Mesa, Sandoval County, New Mexico

USGS Publications Warehouse

Starrett, Wm. H.; Cannon, Helen L.

1954-01-01

A botanical sampling program has been completed by the U.S. Geological Survey on La Ventana Mesa, Sandoval County, N. Mex. A uranium-bearing coal in the Allison-Gibson members of the Cretaceous Mesaverde formation crops out in erosional remnants of the mesa.The coal is capped by a well-fractured 65-foot sandstone bed through which roots of a pinyon-juniper forest penetrate. Samples of several hundred branches of trees growing on top of the mesa were collected and analyzed for uranium. The assays ranged from 0.1 part per million to 2.3 ppm uranium in the wood ash. Dead branches, which were found to contain more uranium in the ash than live branches, were sampled where possible. The results have been contoured to indicated probable areas of mineralized coal. Parts of the north butte are recommended as favorable for physical exploration.

NASA Glenn/AADC-Rolls Royce Collaborated to Measure Erosion Resistance on Coated Polymer Matrix Composites

NASA Technical Reports Server (NTRS)

Miyoshi, Kazuhisa; Sutter, James K.; Mondry, Richard; Ma, Kong; Horan, Dick; Naik, Subhash; Cupp, Randall

2003-01-01

Polymer matrix composites (PMCs) are increasingly used in aerospace and automotive applications because of their light weight and high strength-to-weight ratio relative to metals. However, a major drawback of PMCs is poor abrasion resistance, which restricts their use, especially at high temperatures. Simply applying a hard coating on PMCs to improve abrasion and erosion resistance is not effective since coating durability is short lived (ref. 1). Generally, PMCs have higher coefficients of thermal expansion than metallic or ceramic coatings have, and coating adhesion suffers because of poor interfacial adhesion strength. One technique commonly used to improve coating adhesion or durability is the use of bond coats that are interleaved between a coating and a substrate with vastly different coefficients of thermal expansion. An example of this remedy is the use of bondcoats for ceramic thermal barrier coatings on metallic turbine components (ref. 2). Prior collaborative research between the NASA Glenn Research Center and the Allison Advanced Development Company (AADC) demonstrated that bond coats sandwiched between PMCs and high-quality plasma-sprayed, erosion-resistant coatings substantially improved the erosion resistance of PMCs (ref. 3). One unresolved problem in this earlier collaboration was that there was no easy, accurate way to measure the coating erosion wear scar. Coating wear was determined by both profilometry and optical microscopy. Both techniques are time consuming. Wear measurement by optical microscopy requires sample destruction and does not provide a comprehensive measure of the entire wear volume. An even more subtle, yet critical, problem is that these erosion coatings contain two or more materials with different densities. Therefore, simply measuring specimen mass loss before and after erosion will not provide an accurate gauge for coating and/or substrate volume loss. By using a noncontact technique called scanning optical interferometry, which was recently developed at Glenn, researchers can accurately determine the wear performance of erosion-coated PMCs while preserving the sample. An example of this interferometry technique is shown in the preceding figure for an erosion-coated inlet guide vane from a Rolls Royce AE3007 regional gas turbine jet engine. Erosion was conducted with coated and uncoated PMC vanes, with the abrasive material moving at a velocity of 229 m/s at impingement angles of 20 and 90 degrees. The coatings for PMCs remarkably reduced the erosion volume loss by a factor of approximately 10. Currently, several erosion coatings for PMCs are being compared and downselected for engine testing at Rolls Royce.

Combined external and internal hospital disaster: impact and response in a Houston trauma center intensive care unit.

PubMed

Nates, Joseph L

2004-03-01

To increase awareness of specific risks to healthcare systems during a natural or civil disaster. We describe the catastrophic disruption of essential services and the point-by-point response to the crisis in a major medical center. Case report, review of the literature, and discussion. A 28-bed intensive care unit in a level I trauma center in the largest medical center in the world. In June 2001, tropical storm Allison caused >3 feet of rainfall and catastrophic flooding in Houston, TX. Memorial Hermann Hospital, one of only two level I trauma centers in the community, lost electrical power, communications systems, running water, and internal transportation. All essential hospital services were rendered nonfunctional. Life-saving equipment such as ventilators, infusion pumps, and monitors became useless. Patients were triaged to other medical facilities based on acuity using ground and air ambulances. No patients died as result of the internal disaster. Adequate training, teamwork, communication, coordination with other healthcare professionals, and strong leadership are essential during a crisis. Electricity is vital when delivering care in today's healthcare system, which depends on advanced technology. It is imperative that hospitals take the necessary measures to preserve electrical power at all times. Hospitals should have battery-operated internal and external communication systems readily available in the event of a widespread disaster and communication outage. Critical services such as pharmacy, laboratories, blood bank, and central supply rooms should be located at sites more secure than the ground floors, and these services should be prepared for more extensive performances. Contingency plans to maintain protected water supplies and available emergency kits with batteries, flashlights, two-way radios, and a nonelectronic emergency system for patient identification are also very important. Rapid adaptation to unexpected adverse conditions is critical to the successful implementation of any disaster plan.

Pressure at the ground in a large tornado

NASA Astrophysics Data System (ADS)

Winn, W. P.; Hunyady, S. J.; Aulich, G. D.

1999-09-01

A number of instruments were placed on the ground across the path of a large tornado that passed west of the town of Allison, Texas, on June 8, 1995. The center of the tornado came within 660 m of the closest instrument, which recorded a pressure drop of 55 mbar and a subsequent pressure rise of 60 mbar. During the lowest recorded pressures (near r = 660 m), there were large and rapid pressure fluctuations; the largest fluctuation was a 10-mbar spike lasting 2 s. A second instrument on the opposite side of the tornado recorded a pressure drop of 26 mbar. From the pressure variations with time P(t) at the two instruments, the variation of pressure with distance p(r) from the center of the tornado has been deduced for r>660 m. As r decreases, the measured pressure function p(r) drops more abruptly than would be expected from conservation of angular momentum of air spiraling inward near the ground level.

Storm and flood of July 5, 1989, in northern New Castle County, Delaware

USGS Publications Warehouse

Paulachok, G.N.; Simmons, R.H.; Tallman, A.J.

1995-01-01

On July 5, 1989, intense rainfall from the remnants of Tropical Storm Allison caused severe flooding in northern New Castle County, Delaware. The flooding claimed three lives, and damage was estimated to be $5 million. Flood conditions were aggravated locally by rapid runoff from expansive urban areas. Record- breaking floods occurred on many streams in northern New Castle County. Peak discharges at three active, continuous-record streamflow-gaging stations, one active crest-stage station, and at two discontinued streamflow-gaging stations exceeded previously recorded maximums. Estimated recurrence intervals for peak flow at the three active, continuous-record streamflow stations exceeded 100 years. The U.S. Geological Survey conducted comprehensive post-flood surveys to determine peak water-surface elevations that occurred on affected streams and their tributaries during the flood of July 5, 1989. Detailed surveys were performed near bridge crossings to provide additional information on the extent and severity of the flooding and the effects of hydraulic constrictions on floodwaters.

Emittance measurements in Grumman 1 MeV beamline

DOE Office of Scientific and Technical Information (OSTI.GOV)

Debiak, T.; Gammel, G.; Melnychuk, S.

1992-12-01

The emittance of a 30 keV H{sup {minus}} beam has been measured with an Allison type electrostatic analyser at two positions separated by 85 cm along the Grumman 1 MeV beamline LEBT at low currents (about 4 mA, no Cs{sub 2}O additive in the source) and at higher currents (10-15 mA, with Cs{sub 2}O additive in the source). No emittance growth was observed between the two positions, but, at the higher current level, the emittance was about 60% higher than at the low current level ({Sigma}{sub n},rms = .0045 {pi} cm-mrad vs. 0070 {pi} cm-mrad). Argon was then introduced upmore » to a partial pressure of 4x10{sup {minus}5} torr, and the emittance decreased back to a range corresponding to that found at the lower currents. However, beam noise was observed at the downstream position, and there is evidence for a small amount of emittance growth (<20%) between the two positions.« less

Orthorhombic Titanium Matrix Composite Subjected to Simulated Engine Mission Cycles

NASA Technical Reports Server (NTRS)

Gabb, Timothy P.

1997-01-01

Titanium matrix composites (TMC's) are commonly made up of a titanium alloy matrix reinforced by silicon carbide fibers that are oriented parallel to the loading axis. These composites can provide high strength at lower densities than monolithic titanium alloys and superalloys in selected gas turbine engine applications. The use of TMC rings with unidirectional SiC fibers as reinforcing rings within compressor rotors could significantly reduce the weight of these components. In service, these TMC reinforcing rings would be subjected to complex service mission loading cycles, including fatigue and dwell excursions. Orthorhombic titanium aluminide alloys are of particular interest for such TMC applications because their tensile and creep strengths are high in comparison to those of other titanium alloys. The objective of this investigation was to assess, in simulated mission tests at the NASA Lewis Research Center, the durability of a SiC (SCS-6)/Ti-22Al-23Nb (at.%) TMC for compressor ring applications, in cooperation with the Allison Engine Company.

Size matters: Perceived depth magnitude varies with stimulus height.

PubMed

Tsirlin, Inna; Wilcox, Laurie M; Allison, Robert S

2016-06-01

Both the upper and lower disparity limits for stereopsis vary with the size of the targets. Recently, Tsirlin, Wilcox, and Allison (2012) suggested that perceived depth magnitude from stereopsis might also depend on the vertical extent of a stimulus. To test this hypothesis we compared apparent depth in small discs to depth in long bars with equivalent width and disparity. We used three estimation techniques: a virtual ruler, a touch-sensor (for haptic estimates) and a disparity probe. We found that depth estimates were significantly larger for the bar stimuli than for the disc stimuli for all methods of estimation and different configurations. In a second experiment, we measured perceived depth as a function of the height of the bar and the radius of the disc. Perceived depth increased with increasing bar height and disc radius suggesting that disparity is integrated along the vertical edges. We discuss size-disparity correlation and inter-neural excitatory connections as potential mechanisms that could account for these results. Copyright © 2016 Elsevier Ltd. All rights reserved.

KSC-07pd2208

NASA Image and Video Library

2007-08-03

KENNEDY SPACE CENTER, FLA. - In Orbiter Processing Facility bay 3, STS-120 Mission Specialists Scott E. Parazynski, Douglas H. Wheelock and Paolo A. Nespoli inspect tools they will use during the mission. Nespoli is a European Space Agency astronaut from Italy. With them is Allison Bolinger, an EVA technician with NASA. The STS-120 crew is at Kennedy for a crew equipment interface test, or CEIT, which includes harness training, inspection of the thermal protection system and camera operation for planned extravehicular activities, or EVAs. The STS-120 mission will deliver the Harmony module, christened after a school contest, which will provide attachment points for European and Japanese laboratory modules on the International Space Station. Known in technical circles as Node 2, it is similar to the six-sided Unity module that links the U.S. and Russian sections of the station. Built in Italy for the United States, Harmony will be the first new U.S. pressurized component to be added. The STS-120 mission is targeted to launch on Oct. 20. Photo credit: NASA/George Shelton

KSC-07pd2206

NASA Image and Video Library

2007-08-03

KENNEDY SPACE CENTER, FLA. - In Orbiter Processing Facility bay 3, STS-120 Mission Specialists Scott E. Parazynski, Douglas H. Wheelock and Paolo A. Nespoli inspect tools they will use during the mission. Nespoli is a European Space Agency astronaut from Italy. Behind them is Allison Bolinger, an EVA technician with NASA. The STS-120 crew is at Kennedy for a crew equipment interface test, or CEIT, which includes harness training, inspection of the thermal protection system and camera operation for planned extravehicular activities, or EVAs. The STS-120 mission will deliver the Harmony module, christened after a school contest, which will provide attachment points for European and Japanese laboratory modules on the International Space Station. Known in technical circles as Node 2, it is similar to the six-sided Unity module that links the U.S. and Russian sections of the station. Built in Italy for the United States, Harmony will be the first new U.S. pressurized component to be added. The STS-120 mission is targeted to launch on Oct. 20. Photo credit: NASA/George Shelton

Parametric analysis of a down-scaled turbo jet engine suitable for drone and UAV propulsion

NASA Astrophysics Data System (ADS)

Wessley, G. Jims John; Chauhan, Swati

2018-04-01

This paper presents a detailed study on the need for downscaling gas turbine engines for UAV and drone propulsion. Also, the procedure for downscaling and the parametric analysis of a downscaled engine using Gas Turbine Simulation Program software GSP 11 is presented. The need for identifying a micro gas turbine engine in the thrust range of 0.13 to 4.45 kN to power UAVs and drones weighing in the range of 4.5 to 25 kg is considered and in order to meet the requirement a parametric analysis on the scaled down Allison J33-A-35 Turbojet engine is performed. It is evident from the analysis that the thrust developed by the scaled engine and the Thrust Specific Fuel Consumption TSFC depends on pressure ratio, mass flow rate of air and Mach number. A scaling factor of 0.195 corresponding to air mass flow rate of 7.69 kg/s produces a thrust in the range of 4.57 to 5.6 kN while operating at a Mach number of 0.3 within the altitude of 5000 to 9000 m. The thermal and overall efficiency of the scaled engine is found to be 67% and 75% respectively for a pressure ratio of 2. The outcomes of this analysis form a strong base for further analysis, design and fabrication of micro gas turbine engines to propel future UAVs and drones.

The History of Hiatal Hernia Surgery

PubMed Central

Stylopoulos, Nicholas; Rattner, David W.

2005-01-01

Objective: This review addresses the historical evolution of hiatal hernia (HH) repair and reports in a chronological fashion the major milestones in HH surgery before the laparoscopic era. Methods: The medical literature and the collections of the History of Medicine Division of the National Library of Medicine were searched. Secondary references from all sources were studied. The senior author's experience and personal communications are also reported. Results: The first report of HH was published in 1853 by Bowditch. Rokitansky in 1855 demonstrated that esophagitis was due to gastroesophageal reflux, and Hirsch in 1900 diagnosed an HH using x-rays. Eppinger diagnosed an HH in a live patient, and Friedenwald and Feldman related the symptoms to the presence of an HH. In 1926, Akerlund proposed the term hiatus hernia and classified HH into the 3 types that we use today. The first elective surgical repair was reported in 1919 by Soresi. The physiologic link between HH and gastroesophageal reflux was made at the second half of the 20th century by Allison and Barrett. In the midst of a physiologic revolution, Nissen and Belsey developed their famous operations. In 1957, Collis published his innovative operation. Thal described his technique in 1965, and in 1967, Hill published his procedure. Many modifications of these procedures were published by Pearson and Henderson, Orringer and Sloan, Rossetti, Dor, and Toupet. Donahue and Demeester significantly improved Nissen's operation, and they were the first to truly understand its physiologic mechanism. Conclusion: Hiatal hernia surgery has evolved from anatomic repair to physiological restoration. PMID:15622007

The history of hiatal hernia surgery: from Bowditch to laparoscopy.

PubMed

Stylopoulos, Nicholas; Rattner, David W

2005-01-01

This review addresses the historical evolution of hiatal hernia (HH) repair and reports in a chronological fashion the major milestones in HH surgery before the laparoscopic era. The medical literature and the collections of the History of Medicine Division of the National Library of Medicine were searched. Secondary references from all sources were studied. The senior author's experience and personal communications are also reported. The first report of HH was published in 1853 by Bowditch. Rokitansky in 1855 demonstrated that esophagitis was due to gastroesophageal reflux, and Hirsch in 1900 diagnosed an HH using x-rays. Eppinger diagnosed an HH in a live patient, and Friedenwald and Feldman related the symptoms to the presence of an HH. In 1926, Akerlund proposed the term hiatus hernia and classified HH into the 3 types that we use today. The first elective surgical repair was reported in 1919 by Soresi. The physiologic link between HH and gastroesophageal reflux was made at the second half of the 20 century by Allison and Barrett. In the midst of a physiologic revolution, Nissen and Belsey developed their famous operations. In 1957, Collis published his innovative operation. Thal described his technique in 1965, and in 1967, Hill published his procedure. Many modifications of these procedures were published by Pearson and Henderson, Orringer and Sloan, Rossetti, Dor, and Toupet. Donahue and Demeester significantly improved Nissen's operation, and they were the first to truly understand its physiologic mechanism. Hiatal hernia surgery has evolved from anatomic repair to physiological restoration.

Using the history of research on sickle-cell anemia to affect preservice teachers' conceptions of the nature of science

NASA Astrophysics Data System (ADS)

Howe, Eric M.

Preservice elementary teachers enrolled in an elective biology course participated in an eight-class unit of instruction based on the history of research in understanding the disease sickle-cell anemia. Students were introduced to the disease as a "mystery" for them to solve, and subsequently developed an understanding of the disease from several disciplines in biology (e.g., genetics, ecology, evolution, molecular biology). The unit involved open-ended problems in which students examined evidence and developed explanations in a manner analogous to the reasoning used by Anthony C. Allison and his colleagues during the early to middle part of the twentieth century. Throughout the unit, students were challenged to explicitly and reflectively connect their work with the historical material to more general conclusions about aspects of the nature of science. These aspects included (a) the nature of scientific theories, (b) the tentative nature of science, (c) the difference between scientific theories and laws, (d) the validity of observational methods in science, and (e) the subjective (theory-laden) nature of science. The research measured students' pre- and post-instruction views by using both an open-ended survey (VNOS) and follow-up, semi-structured interviews. The results indicated that an appreciable number of students underwent a change or enrichment in their views for some of the nature of science aspects. Moreover, change or enrichment in students' views was directly attributable to their work in the sickle-cell unit as evidenced from the specific examples students articulated in their post-instruction responses in support of their more informed views. In general, the findings of this research lend empirical support to the value of having students actively recapitulate the history of science to improve their nature of science conceptions. This is facilitated when the lessons challenge students to explicitly and reflectively develop views of the nature of science in tandem with their examinations of the problems taken from the history of science.

Forward Swept Compressor Testing

NASA Technical Reports Server (NTRS)

Miller, David P.

1997-01-01

A new forward-swept rotor designed by Allison Engine Company was tested in NASA Lewis Research Center's CE-18 facility. This testing was a follow-on project sponsored by NASA Lewis to study range enhancements in small turbomachinery. The test was conducted against a baseline rotor design that was also tested in CE-18. The design point for the rotor was a rotor pressure ratio of 2.69, a mass flow of 10.52 lbm/sec, and an adiabatic efficiency of 89.1 percent. Test data indicate that the rotor met the pressure ratio of 2.69 with a 10.77 lbm/sec flow rate, a 87.5-percent adiabatic efficiency, and a 19.5-percent stall margin. The baseline rotor achieved a pressure ratio of 2.69 at a 10.77 lbm/sec flow rate with a stall margin of only 9.2 percent and an adiabatic efficiency of 87.0 percent. The major differences are the significant stall margin increase and the substantially higher off-design peak efficiencies of the forward-swept rotor. The substantially higher performance over the baseline rotor design makes the new design a viable technology candidate for future products.

A new anoplocephalid (Cestoda: Cyclophyllidea) from Gallotia atlantica (Reptilia, Lacertidae) in the Canary Islands, Spain.

PubMed

Foronda, Pilar; Abreu-Acosta, Néstor; Casanova, Juan Carlos; Ribas, Alexis; Valladares, Basilio

2009-06-01

A new species of anoplocephalid cestode is described from Gallotia atlantica (Reptilia, Lacertidae) on the Canary Islands, Spain. Oochoristica feliui n. sp. belongs to the group of Oochoristica spp. having circular suckers and fewer than 25 testes in a single cluster: O. lygosomae Burt, 1933; O. lygosomatis Skinker, 1935; O. elongata Dupouy et Kechemir, 1973; O. jonnesi Bursey, McAllister and Freed, 1997; O. junkea Johri, 1950; O. macallisteri Bursey and Goldberg, 1996; O. novaezelandae Schmidt and Allison, 1985; O. parvogenitalis Dupouy and Kechemir, 1973; and O. sobolevi (Spasskii, 1948) Spaskii, 1951. Oochoristica feliui n. sp. differs from these species in a variety of characters such as the number of proglottids, size of the scolex and suckers, presence of a neck, size and shape of the ovary (divided into 5-6 lobules), ovoid shape of the vitelline gland, a spined cirrus, size of eggs, oncosphere and oncosphere hooks, and the presence of 2 osmoregulatory canals. Gallotia spp. are endemic to the Canary Islands. This is the first report of an adult cestode species in this lizard.

KSC-07pd2207

NASA Image and Video Library

2007-08-03

KENNEDY SPACE CENTER, FLA. - In Orbiter Processing Facility bay 3, STS-120 Mission Specialists Scott E. Parazynski and Paolo A. Nespoli (foreground) inspect tools they will use during the mission. Nespoli is a European Space Agency astronaut from Italy. Behind them are Mission Specialist Douglas H. Wheelock and Allison Bolinger, an EVA technician with NASA. The STS-120 crew is at Kennedy for a crew equipment interface test, or CEIT, which includes harness training, inspection of the thermal protection system and camera operation for planned extravehicular activities, or EVAs. The STS-120 mission will deliver the Harmony module, christened after a school contest, which will provide attachment points for European and Japanese laboratory modules on the International Space Station. Known in technical circles as Node 2, it is similar to the six-sided Unity module that links the U.S. and Russian sections of the station. Built in Italy for the United States, Harmony will be the first new U.S. pressurized component to be added. The STS-120 mission is targeted to launch on Oct. 20. Photo credit: NASA/George Shelton

Systemic spread of an RNA insect virus in plants expressing plant viral movement protein genes

PubMed Central

Dasgupta, Ranjit; Garcia, Bradley H.; Goodman, Robert M.

2001-01-01

Flock house virus (FHV), a single-stranded RNA insect virus, has previously been reported to cross the kingdom barrier and replicate in barley protoplasts and in inoculated leaves of several plant species [Selling, B. H., Allison, R. F. & Kaesberg, P. (1990) Proc. Natl. Acad. Sci. USA 87, 434–438]. There was no systemic movement of FHV in plants. We tested the ability of movement proteins (MPs) of plant viruses to provide movement functions and cause systemic spread of FHV in plants. We compared the growth of FHV in leaves of nontransgenic and transgenic plants expressing the MP of tobacco mosaic virus or red clover necrotic mosaic virus (RCNMV). Both MPs mobilized cell-to-cell and systemic movement of FHV in Nicotiana benthamiana plants. The yield of FHV was more than 100-fold higher in the inoculated leaves of transgenic plants than in the inoculated leaves of nontransgenic plants. In addition, FHV accumulated in the noninoculated upper leaves of both MP-transgenic plants. RCNMV MP was more efficient in mobilizing FHV to noninoculated upper leaves. We also report here that FHV replicates in inoculated leaves of six additional plant species: alfalfa, Arabidopsis, Brassica, cucumber, maize, and rice. Our results demonstrate that plant viral MPs cause cell-to-cell and long-distance movement of an animal virus in plants and offer approaches to the study of the evolution of viruses and mechanisms governing mRNA trafficking in plants as well as to the development of promising vectors for transient expression of foreign genes in plants. PMID:11296259

Electrokinetic transport of rigid macroions in the thin double layer limit: a boundary element approach.

PubMed

Allison, Stuart A; Xin, Yao

2005-08-15

A boundary element (BE) procedure is developed to numerically calculate the electrophoretic mobility of highly charged, rigid model macroions in the thin double layer regime based on the continuum primitive model. The procedure is based on that of O'Brien (R.W. O'Brien, J. Colloid Interface Sci. 92 (1983) 204). The advantage of the present procedure over existing BE methodologies that are applicable to rigid model macroions in general (S. Allison, Macromolecules 29 (1996) 7391) is that computationally time consuming integrations over a large number of volume elements that surround the model particle are completely avoided. The procedure is tested by comparing the mobilities derived from it with independent theory of the mobility of spheres of radius a in a salt solution with Debye-Huckel screening parameter, kappa. The procedure is shown to yield accurate mobilities provided (kappa)a exceeds approximately 50. The methodology is most relevant to model macroions of mean linear dimension, L, with 1000>(kappa)L>100 and reduced absolute zeta potential (q|zeta|/k(B)T) greater than 1.0. The procedure is then applied to the compact form of high molecular weight, duplex DNA that is formed in the presence of the trivalent counterion, spermidine, under low salt conditions. For T4 DNA (166,000 base pairs), the compact form is modeled as a sphere (diameter=600 nm) and as a toroid (largest linear dimension=600 nm). In order to reconcile experimental and model mobilities, approximately 95% of the DNA phosphates must be neutralized by bound counterions. This interpretation, based on electrokinetics, is consistent with independent studies.

Republic F-84 Thunderjet with Slotted Nozzle

NASA Image and Video Library

1958-05-21

A Republic F-84 Thunderjet dramatically modified at the NASA Lewis Research Center to investigate the use of slotted nozzles to reduce exhaust noise. The F-84 was a single-seat fighter-bomber powered by an Allison J35 turbojet. It was the Air Force’s first post-World War II tactical aircraft and was used extensively in the Korean War. The laboratory had acquired the aircraft in 1954 and modified it in order to demonstrate the reverse thruster. The tail end of the aircraft was then removed for a series of large nozzle investigations. Lewis researchers launched an extensive program in the mid-1950s to develop methods of reducing engine noise as the airline industry was preparing to introduce the first turbojet-powered passenger aircraft. The early NACA investigations determined that the primary source of noise was the mixing of the engine’s hot exhaust with the cool surrounding air. Lewis researchers studied many different nozzles designed to facilitate this mixing. Nozzles with elongated exit sections, as seen in this photograph, produced lower noise levels. These long slot nozzles were also considered for Short Take-off and Landing aircraft because their long flat surfaces provided lift. In 1958 Lewis tested several full-scale slot nozzles on the F-84. The researchers, led by Willard Cole, sought to determine the noise-generation characteristics for nozzles having large a width-to-height ratio. The nozzle in this photograph has a 100 to 1 width-to-height ratio. Cole determined that the experimental nozzles produced the same levels of sound as the standard nozzle, but the changes in the directional noise were substantial.

Evaluation of advanced R and D topics in photovoltaics

NASA Technical Reports Server (NTRS)

Surek, T.

1982-01-01

An evaluation of advanced research and development topics in photovoltaic that is summarized. The intent was to develop priorities in a list of advanced research and development activities. Thirty-five activities in 10 major categories were evaluated by their contributions to basic scientific advances, potential impact on further technology development by private industry, and priorities for federal advanced research and development funding.

Metaphilosophy of Mind: how Do Minds Investigate Minds? Refutation of the Theocentric View.

PubMed

Werner, Konrad

2017-03-01

I shall propose metaphilosophy of mind as the philosophy of mind investigating mind. That is to say, I pose the question of how knowledge of mind provided by cognitive science, broadly construed, is constrained by the epistemic position of the knower, i.e. by the very fact that it is undertaken by a mind. Here I would like to propose a minimal framework, based on two distinctions: (i) the standard one between empirical and conceptual analysis; (ii) a new one, between the internal questions of mind and the boundary questions of mind. I shall then combine these distinctions to arrive at several ways of investigating the mind, the brain and cognition. On this ground, I will discuss the notion of epistemological theocentrism as outlined by Henry Allison and argue against the perspective I call theocentric philosophy of mind. From this angle I will be able to address skepticism which cannot be defeated but actually can be, as I put it, disarmed. Finally, metaphilosophy of mind based on the abovementioned distinctions elicits a perspective that is not sufficiently delineated by cognitive scientists and philosophers: empirical way of addressing the boundary questions of mind.

KSC-07pd2194

NASA Image and Video Library

2007-08-03

KENNEDY SPACE CENTER, FLA. - The STS-120 crew is at Kennedy for a crew equipment interface test, or CEIT. Receiving instruction from Allison Bolinger, an EVA technician with NASA, under space shuttle Discovery in Orbiter Processing Facility bay 3 are, from left in blue flight suits, Mission Specialist Douglas H. Wheelock; Commander Pamela A. Melroy; Expedition 16 Flight Engineer Daniel M. Tani; Pilot George D. Zamka; and Mission Specialists Stephanie D. Wilson, Scott E. Parazynski and Paolo A. Nespoli, a European Space Agency astronaut from Italy. Among the activities standard to a CEIT are harness training, inspection of the thermal protection system and camera operation for planned extravehicular activities, or EVAs. The STS-120 mission will deliver the Harmony module, christened after a school contest, which will provide attachment points for European and Japanese laboratory modules on the International Space Station. Known in technical circles as Node 2, it is similar to the six-sided Unity module that links the U.S. and Russian sections of the station. Built in Italy for the United States, Harmony will be the first new U.S. pressurized component to be added. The STS-120 mission is targeted to launch on Oct. 20. Photo credit: NASA/George Shelton

Serotonin 2C receptor antagonist improves fear discrimination and subsequent safety signal recall.

PubMed

Foilb, Allison R; Christianson, John P

2016-02-04

The capacity to discriminate between safety and danger is fundamental for survival, but is disrupted in individuals with posttraumatic stress disorder (PTSD). Acute stressors cause a release of serotonin (5-HT) in the forebrain, which is one mechanism for enhanced fear and anxiety; these effects are mediated by the 5-HT2Creceptor. Using a fear discrimination paradigm where a danger signal conditioned stimulus (CS+) co-terminates with a mild footshock and a safety signal (CS-) indicates the absence of shock, we demonstrate that danger/safety discrimination and fear inhibition develop over the course of 4 daily conditioning sessions. Systemic administration of the 5-HT2Creceptor antagonist SB 242084 (0.25 or 1.0mg/kg) prior to conditioning reduced behavioral freezing during conditioning, and improved learning and subsequent inhibition of fear by the safety signal. Discrimination was apparent in the first recall test, and discrimination during training was evident after 3days of conditioning versus 5days in the vehicle treated controls. These results suggest a novel therapeutic use for 5-HT2Creceptor antagonists to improve learning under stressful circumstances. Potential anatomical loci for 5-HT2Creceptor modulation of fear discrimination learning and cognitive performance enhancement are discussed. John P. Christianson and Allison R. Foilb, the authors, verify that animal research was carried out in accordance with the National Institute of Health Guide for the Care and Use of Laboratory Animals (NIH Publications No. 80-23) and all procedures involving animals were reviewed and approved by the Boston College Animal Care and Use Committee. All efforts were made to limit the number of animals used and their suffering. Copyright © 2015 Elsevier Inc. All rights reserved.

D-558-1 in flight

NASA Technical Reports Server (NTRS)

1952-01-01

This 1952 NACA High-Speed Flight Research Station inflight photograph of the Douglas D-558-1 #3 Skystreak. Even with partial cloud cover the white aircraft was easy to see. The D-558-1 reflected NACA (National Advisory Committee for Aeronautics) ideas on a transonic research aircraft. NACA engineers favored a turbojet engine, as they saw a rocket-powered research aircraft as too risky. They were also more interested in transonic speed--from about Mach 0.8 to Mach 1.2--than in breaking the 'sound barrier' for the sake of doing so. The Army Air Forces had a different approach and developed the rocket-powered XS-1, which the NACA also flew and supported, although it favored the D-558-1. Conceived in 1945, the D558-1 Skystreak was designed by the Douglas Aircraft Company for the U.S. Navy Bureau of Aeronautics, in conjunction with the National Advisory Committee for Aeronautics (NACA). The Skystreaks were turojet powered aircraft that took off from the ground under their own power and had straight wings and tails. All three D-558-1 Skystreaks were powered by Allison J35-A-11 turbojet engines producing 5,000 pounds of thrust. All the Skystreaks were initially painted scarlet, which lead to the nickname 'crimson test tube.' NACA later had the color of the Skystreaks changed to white to improve optical tracking and photography. The Skystreaks carried 634 pounds of instrumentation and were ideal first-generation, simple, transonic research airplanes. Much of the research performed by the D-558-1 Skystreaks, was quickly overshadowed in the public mind by Chuck Yeager and the X-1 rocketplane. However, the Skystreak performed an important role in aeronautical research by flying for extended periods of time at transonic speeds, which freed the X-1 to fly for limited periods at supersonic speeds.

[Research and workshop on alternative fuels for aviation. Final report

DOE Office of Scientific and Technical Information (OSTI.GOV)

NONE

1999-09-01

The Renewable Aviation Fuels Development Center (RAFDC) at Baylor University was granted U. S. Department of Energy (US DOE) and Federal Aviation Administration (FAA) funds for research and development to improve the efficiency in ethanol powered aircraft, measure performance and compare emissions of ethanol, Ethyl Tertiary Butyl Ether (ETBE) and 100 LL aviation gasoline. The premise of the initial proposal was to use a test stand owned by Engine Components Inc. (ECI) based in San Antonio, Texas. After the grant was awarded, ECI decided to close down its test stand facility. Since there were no other test stands available atmore » that time, RAFDC was forced to find additional support to build its own test stand. Baylor University provided initial funds for the test stand building. Other obstacles had to be overcome in order to initiate the program. The price of the emission testing equipment had increased substantially beyond the initial quote. Rosemount Analytical Inc. gave RAFDC an estimate of $120,000.00 for a basic emission testing package. RAFDC had to find additional funding to purchase this equipment. The electronic ignition unit also presented a series of time consuming problems. Since at that time there were no off-the-shelf units of this type available, one had to be specially ordered and developed. FAA funds were used to purchase a Super Flow dynamometer. Due to the many unforeseen obstacles, much more time and effort than originally anticipated had to be dedicated to the project, with much of the work done on a volunteer basis. Many people contributed their time to the program. One person, mainly responsible for the initial design of the test stand, was a retired engineer from Allison with extensive aircraft engine test stand experience. Also, many Baylor students volunteered to assemble the. test stand and continue to be involved in the current test program. Although the program presented many challenges, which resulted in delays, the RAFDC's test stand is an asset which provides an ongoing research capability dedicated to the testing of alternative fuels for aircraft engines. The test stand is now entirely functional with the exception of the electronic ignition unit which still needs adjustments.« less

Competency frameworks for advanced practice nursing: a literature review.

PubMed

Sastre-Fullana, P; De Pedro-Gómez, J E; Bennasar-Veny, M; Serrano-Gallardo, P; Morales-Asencio, J M

2014-12-01

This paper describes a literature review that identified common traits in advanced practice nursing that are specific to competency development worldwide. There is a lack of international agreement on the definition of advanced practice nursing and its core competencies. Despite the lack of consensus, there is an ongoing process worldwide to establish and outline the standards and competencies for advanced practice nursing roles. International agencies, such as the International Council of Nurses, have provided general definitions for advanced practice nursing. Additionally, a set of competency standards for this aim has been developed. A literature review and a directed search of institutional websites were performed to identify specific developments in advanced practice nursing competencies and standards of practice. To determine a competency map specific to international advanced practice nursing, key documents were analysed using a qualitative approach based on content analysis to identify common traits among documents and countries. The review process identified 119 relevant journal articles related to advanced practice nursing competencies. Additionally, 97 documents from grey literature that were related to advanced practice nursing competency mapping were identified. From the text analysis, 17 worldwide transversal competency domains emerged. Despite the variety of patterns in international advanced practice nursing development, essential competency domains can be found in most national frameworks for the role development of international advanced practice nursing. These 17 core competencies can be used to further develop instruments that assess the perceived competency of advanced practice nurses. The results of this review can help policy developers and researchers develop instruments to compare advanced practice nursing services in various contexts and to examine their association with related outcomes. © 2014 International Council of Nurses.

Developing a Model of Advanced Training to Promote Career Advancement for Certified Genetic Counselors: An Investigation of Expanded Skills, Advanced Training Paths, and Professional Opportunities.

PubMed

Baty, Bonnie J; Trepanier, Angela; Bennett, Robin L; Davis, Claire; Erby, Lori; Hippman, Catriona; Lerner, Barbara; Matthews, Anne; Myers, Melanie F; Robbins, Carol B; Singletary, Claire N

2016-08-01

There are currently multiple paths through which genetic counselors can acquire advanced knowledge and skills. However, outside of continuing education opportunities, there are few formal training programs designed specifically for the advanced training of genetic counselors. In the genetic counseling profession, there is currently considerable debate about the paths that should be available to attain advanced skills, as well as the skills that might be needed for practice in the future. The Association of Genetic Counseling Program Directors (AGCPD) convened a national committee, the Committee on Advanced Training for Certified Genetic Counselors (CATCGC), to investigate varied paths to post-master's training and career development. The committee began its work by developing three related grids that view career advancement from the viewpoints of the skills needed to advance (skills), ways to obtain these skills (paths), and existing genetic counselor positions that offer career change or advancement (positions). Here we describe previous work related to genetic counselor career advancement, the charge of the CATCGC, our preliminary work in developing a model through which to view genetic counselor advanced training and career advancement opportunities, and our next steps in further developing and disseminating the model.

The development of advanced nursing practice globally.

PubMed

Sheer, Barbara; Wong, Frances Kam Yuet

2008-01-01

To examine the development of advanced nursing practice globally. Data were collected from documentary resources available in the International Nurse Practitioners/Advanced Practice Nurse Network (INP/APNN) of the International Council of Nurses. The areas examined were guided by the "key informant survey on advanced nursing practice self-administered questionnaire." Two core members of the INP/APNN who have rich experience in global advanced nursing development analyzed the data.A total of 14 countries and three regions from five continents were included in the analyses. The development of advanced nursing practice in these areas is facilitated by a need for better access to care in a cost-containment era and the enhancement of nursing education to postgraduate level. The mechanism for regulation of practice is in place in some countries. Confirms the development of advanced practice in nursing is a global trend. APNs can improve global health with points to enhanced education in nursing and regulation of advanced practice.

Study of Early Child Care and Youth Development (SECCYD)

MedlinePlus

... Snapshot of Pregnancy & Infant Development Advances Snapshot of Child Development Advances Snapshot of Adult & Family Health Advances NICHD ... Meetings and Events BACK TO TOP Content Owner Child Development and Behavior Branch Last Reviewed Date 12/30/ ...

Advanced Learning Theories Applied to Leadership Development

DTIC Science & Technology

2006-11-01

Theory . We combined the cognitive , experiential and motivational components of advanced learning theories to develop a training application...Center for Army Leadership Technical Report 2006-2 Advanced Learning Theories Applied to Leadership Development Christina Curnow...2006 5a. CONTRACT NUMBER W91QF4-05-F-0026 5b. GRANT NUMBER 4. TITLE AND SUBTITLE Advanced Learning Theories Applied to Leadership Development 5c

Energy Storage (II): Developing Advanced Technologies

ERIC Educational Resources Information Center

Robinson, Arthur L

1974-01-01

Energy storage, considered by some scientists to be the best technological and economic advancement after advanced nuclear power, still rates only modest funding for research concerning the development of advanced technologies. (PEB)

Building foundations for the future: the NHS Scotland advanced practice succession planning development pathway.

PubMed

Currie, Kay; Grundy, Maggie

2011-10-01

To highlight implications for managers from the implementation of a national advanced practice succession planning development pathway within Scotland. Internationally, advanced practice posts have often developed in an ad-hoc manner, with little organizational attention to succession planning. Evaluation of a pilot national succession planning development pathway identified mechanisms which facilitate or hamper effective planning for advanced practice roles. A responsive evaluation design incorporating semi-structured questionnaires to pathway participants (n = 15) and semi-structured telephone interviews with case-site pathway participants (n = 7) and their line managers. Managers believed the development pathway was worthwhile; however, there was limited strategic planning to match individuals' development to service need. Practitioners generally perceived managers as interested in their development, although levels of practical support varied. There is concern from both managers and practitioners regarding ongoing funding for advanced practice development. The present evaluation study reiterates the need for organizational commitment to succession planning including robust service needs analysis mechanisms and adequate funding for development processes. Nurse managers are viewed as the 'gatekeepers' to opportunities for developing advanced nurse practitioners; scare resources must be targeted effectively to support succession planning through the development of selected individuals for future advanced practice posts, justified by service need. © 2011 Blackwell Publishing Ltd.

Japan's advanced medicine.

PubMed

Sho, Ri; Narimatsu, Hiroto; Murakami, Masayasu

2013-10-01

Like health care systems in other developed countries, Japan's health care system faces significant challenges due to aging of the population and economic stagnation. Advanced medicine (Senshin Iryou) is a unique system of medical care in Japan offering highly technology-driven medical care that is not covered by public health insurance. Advanced medicine has recently developed and expanded as part of health care reform. Will it work? To answer this question, we briefly trace the historical development of advanced medicine and describe the characteristics and current state of advanced medical care in Japan. We then offer our opinions on the future of advanced medicine with careful consideration of its pros and cons. We believe that developing advanced medicine is an attempt to bring health care reform in line rather than the goal of health care reform.

Electric field at the ground in a large tornado

NASA Astrophysics Data System (ADS)

Winn, W. P.; Hunyady, S. J.; Aulich, G. D.

2000-08-01

A number of observers have reported lightning, diffuse luminosity, or other manifestations of electrical activity in tornadoes. To try to quantify these observations, eight instruments with sensors for electric field and other parameters were placed in front of a large tornado that passed by Allison, Texas, on June 8, 1995. The edge of the tornado vortex passed over two of the instruments and near other instruments. When the two instruments were in the low-pressure region near the edge of the vortex, they indicated electric field amplitudes less than about 3 kV/m, which is low compared with amplitudes of 10 kV/m or greater that are often present below thunderclouds. The thunderstorm produced frequent lightning, but there is no evidence from the measurements or from visual observations of lightning in the vortex. However, there was one interesting electrical effect associated with the tornado: the electric field at the two instruments in the vortex relaxed to zero quickly after lightning flashes, whereas the electric field at nearby instruments outside the vortex did not relax quickly after the same lightning flashes. The most likely cause of the rapid relaxation is shielding of the electric field at the ground by charge induced on soil, leaves, grass, and other debris lofted by the strong winds.

Stereoscopic perception of real depths at large distances.

PubMed

Palmisano, Stephen; Gillam, Barbara; Govan, Donovan G; Allison, Robert S; Harris, Julie M

2010-06-01

There has been no direct examination of stereoscopic depth perception at very large observation distances and depths. We measured perceptions of depth magnitude at distances where it is frequently reported without evidence that stereopsis is non-functional. We adapted methods pioneered at distances up to 9 m by R. S. Allison, B. J. Gillam, and E. Vecellio (2009) for use in a 381-m-long railway tunnel. Pairs of Light Emitting Diode (LED) targets were presented either in complete darkness or with the environment lit as far as the nearest LED (the observation distance). We found that binocular, but not monocular, estimates of the depth between pairs of LEDs increased with their physical depths up to the maximum depth separation tested (248 m). Binocular estimates of depth were much larger with a lit foreground than in darkness and increased as the observation distance increased from 20 to 40 m, indicating that binocular disparity can be scaled for much larger distances than previously realized. Since these observation distances were well beyond the range of vertical disparity and oculomotor cues, this scaling must rely on perspective cues. We also ran control experiments at smaller distances, which showed that estimates of depth and distance correlate poorly and that our metric estimation method gives similar results to a comparison method under the same conditions.

KSC-07pd2209

NASA Image and Video Library

2007-08-03

KENNEDY SPACE CENTER, FLA. - In Orbiter Processing Facility bay 3, STS-120 crew members practice handling tools they will use during the mission. Around the table, at center, dressed in blue flight suits are Mission Specialists Scott E. Parazynski, Douglas H. Wheelock, Paolo A. Nespoli and Expedition 16 Flight Engineer Daniel M. Tani. Between Wheelock and Nespoli is Allison Bolinger, an EVA technician with NASA. In the foreground is Dina Contella, a thermal protection system specialist with NASA. Nespoli is a European Space Agency astronaut from Italy. The STS-120 crew is at Kennedy for a crew equipment interface test, or CEIT, which includes harness training, inspection of the thermal protection system and camera operation for planned extravehicular activities, or EVAs. The STS-120 mission will deliver the Harmony module, christened after a school contest, which will provide attachment points for European and Japanese laboratory modules on the International Space Station. Known in technical circles as Node 2, it is similar to the six-sided Unity module that links the U.S. and Russian sections of the station. Built in Italy for the United States, Harmony will be the first new U.S. pressurized component to be added. The STS-120 mission is targeted to launch on Oct. 20. Photo credit: NASA/George Shelton

KSC-07pd2188

NASA Image and Video Library

2007-08-03

KENNEDY SPACE CENTER, FLA. - The STS-120 crew is at Kennedy for a crew equipment interface test, or CEIT. Inspecting the thermal protection system, or TPS, tiles under space shuttle Discovery in Orbiter Processing Facility bay 3 are, from left, Expedition 16 Flight Engineer Daniel M. Tani; Mission Specialist Douglas H. Wheelock; Pilot George D. Zamka; Mission Specialist Paolo A. Nespoli, a European Space Agency astronaut from Italy; Allison Bolinger, an EVA technician with NASA; Mission Specialists Scott E. Parazynski and Stephanie D. Wilson; and Erin Schlichenmaier, of TPS Engineering with United Space Alliance. Among the activities standard to a CEIT are harness training, inspection of the thermal protection system and camera operation for planned extravehicular activities, or EVAs. The STS-120 mission will deliver the Harmony module, christened after a school contest, which will provide attachment points for European and Japanese laboratory modules on the International Space Station. Known in technical circles as Node 2, it is similar to the six-sided Unity module that links the U.S. and Russian sections of the station. Built in Italy for the United States, Harmony will be the first new U.S. pressurized component to be added. The STS-120 mission is targeted to launch on Oct. 20. Photo credit: NASA/George Shelton

KSC-07pd2191

NASA Image and Video Library

2007-08-03

KENNEDY SPACE CENTER, FLA. - The STS-120 crew is at Kennedy for a crew equipment interface test, or CEIT. Inspecting the thermal protection system, or TPS, tiles under space shuttle Discovery in Orbiter Processing Facility bay 3 are, from left, Expedition 16 Flight Engineer Daniel M. Tani; Mission Specialist Douglas H. Wheelock; Pilot George D. Zamka; Mission Specialist Paolo A. Nespoli (kneeling), a European Space Agency astronaut from Italy; Mission Specialist Scott E. Parazynski; Commander Pamela A. Melroy; Allison Bolinger (kneeling), an EVA technician with NASA; Mission Specialist Stephanie D. Wilson; and Erin Schlichenmaier, with United Space Alliance TPS Engineering. Among the activities standard to a CEIT are harness training, inspection of the thermal protection system and camera operation for planned extravehicular activities, or EVAs. The STS-120 mission will deliver the Harmony module, christened after a school contest, which will provide attachment points for European and Japanese laboratory modules on the International Space Station. Known in technical circles as Node 2, it is similar to the six-sided Unity module that links the U.S. and Russian sections of the station. Built in Italy for the United States, Harmony will be the first new U.S. pressurized component to be added. The STS-120 mission is targeted to launch on Oct. 20. Photo credit: NASA/George Shelton

KSC-07pd2189

NASA Image and Video Library

2007-08-03

KENNEDY SPACE CENTER, FLA. - The STS-120 crew is at Kennedy for a crew equipment interface test, or CEIT. Inspecting the thermal protection system, or TPS, tiles under space shuttle Discovery in Orbiter Processing Facility bay 3 are, from left, Mission Specialist Douglas H. Wheelock (standing); Pilot George D. Zamka; Mission Specialist Paolo A. Nespoli, a European Space Agency astronaut from Italy; Allison Bolinger (pointing), an EVA technician with NASA; Commander Pamela A. Melroy; Mission Specialists Scott E. Parazynski and Stephanie D. Wilson; two support personnel and Erin Schlichenmaier, with United Space Alliance TPS Engineering. Among the activities standard to a CEIT are harness training, inspection of the thermal protection system and camera operation for planned extravehicular activities, or EVAs. The STS-120 mission will deliver the Harmony module, christened after a school contest, which will provide attachment points for European and Japanese laboratory modules on the International Space Station. Known in technical circles as Node 2, it is similar to the six-sided Unity module that links the U.S. and Russian sections of the station. Built in Italy for the United States, Harmony will be the first new U.S. pressurized component to be added. The STS-120 mission is targeted to launch on Oct. 20. Photo credit: NASA/George Shelton

KSC-07pd2190

NASA Image and Video Library

2007-08-03

KENNEDY SPACE CENTER, FLA. - The STS-120 crew is at Kennedy for a crew equipment interface test, or CEIT. Inspecting the thermal protection system, or TPS, tiles under space shuttle Discovery in Orbiter Processing Facility bay 3 are, from left, Expedition 16 Flight Engineer Daniel M. Tani; Mission Specialist Douglas H. Wheelock; Pilot George D. Zamka; Mission Specialist Paolo A. Nespoli (sitting), a European Space Agency astronaut from Italy; Mission Specialist Scott E. Parazynski (pointing); Commander Pamela A. Melroy; Allison Bolinger (kneeling), an EVA technician with NASA; Mission Specialist Stephanie D. Wilson; and Erin Schlichenmaier, with United Space Alliance TPS Engineering. Among the activities standard to a CEIT are harness training, inspection of the thermal protection system and camera operation for planned extravehicular activities, or EVAs. The STS-120 mission will deliver the Harmony module, christened after a school contest, which will provide attachment points for European and Japanese laboratory modules on the International Space Station. Known in technical circles as Node 2, it is similar to the six-sided Unity module that links the U.S. and Russian sections of the station. Built in Italy for the United States, Harmony will be the first new U.S. pressurized component to be added. The STS-120 mission is targeted to launch on Oct. 20. Photo credit: NASA/George Shelton

Advances in hypersonic vehicle synthesis with application to studies of advanced thermal protection system

NASA Technical Reports Server (NTRS)

Ardema, Mark D.

1995-01-01

This report summarizes the work entitled 'Advances in Hypersonic Vehicle Synthesis with Application to Studies of Advanced Thermal Protection Systems.' The effort was in two areas: (1) development of advanced methods of trajectory and propulsion system optimization; and (2) development of advanced methods of structural weight estimation. The majority of the effort was spent in the trajectory area.

What Are Normal Puberty, Precocious Puberty, and Delayed Puberty?

MedlinePlus

... Snapshot of Pregnancy & Infant Development Advances Snapshot of Child Development Advances Snapshot of Adult & Family Health Advances NICHD ... the New NICHD Director Exploring Factors That Influence Child Development Picture This: NICHD Support for Neuroscience Research All ...

Space Launch System Advanced Development Office, FY 2013 Annual Report

NASA Technical Reports Server (NTRS)

Crumbly, C. M.; Bickley, F. P.; Hueter, U.

2013-01-01

The Advanced Development Office (ADO), part of the Space Launch System (SLS) program, provides SLS with the advanced development needed to evolve the vehicle from an initial Block 1 payload capability of 70 metric tons (t) to an eventual capability Block 2 of 130 t, with intermediary evolution options possible. ADO takes existing technologies and matures them to the point that insertion into the mainline program minimizes risk. The ADO portfolio of tasks covers a broad range of technical developmental activities. The ADO portfolio supports the development of advanced boosters, upper stages, and other advanced development activities benefiting the SLS program. A total of 34 separate tasks were funded by ADO in FY 2013.

What Are the Types and Phases of Rett Syndrome?

MedlinePlus

... Snapshot of Pregnancy & Infant Development Advances Snapshot of Child Development Advances Snapshot of Adult & Family Health Advances NICHD ... fact, these infants show problems with very early development. In one study, ... . The child loses skills (regresses) quickly. Purposeful hand movements and ...

Beyond the Baseline: Proceedings of the Space Station Evolution Symposium. Volume 2, Part 2; Space Station Freedom Advanced Development Program

NASA Technical Reports Server (NTRS)

1990-01-01

This report contains the individual presentations delivered at the Space Station Evolution Symposium in League City, Texas on February 6, 7, 8, 1990. Personnel responsible for Advanced Systems Studies and Advanced Development within the Space Station Freedom program reported on the results of their work to date. Systems Studies presentations focused on identifying the baseline design provisions (hooks and scars) necessary to enable evolution of the facility to support changing space policy and anticipated user needs. Also emphasized were evolution configuration and operations concepts including on-orbit processing of space transfer vehicles. Advanced Development task managers discussed transitioning advanced technologies to the baseline program, including those near-term technologies which will enhance the safety and productivity of the crew and the reliability of station systems. Special emphasis was placed on applying advanced automation technology to ground and flight systems. This publication consists of two volumes. Volume 1 contains the results of the advanced system studies with the emphasis on reference evolution configurations, system design requirements and accommodations, and long-range technology projections. Volume 2 reports on advanced development tasks within the Transition Definition Program. Products of these tasks include: engineering fidelity demonstrations and evaluations on Station development testbeds and Shuttle-based flight experiments; detailed requirements and performance specifications which address advanced technology implementation issues; and mature applications and the tools required for the development, implementation, and support of advanced technology within the Space Station Freedom Program.

What Are Common Treatments for Phenylketonuria (PKU)?

MedlinePlus

... Snapshot of Pregnancy & Infant Development Advances Snapshot of Child Development Advances Snapshot of Adult & Family Health Advances NICHD ... a small amount of breast milk or regular infant formula to make sure the child ... for normal development but not enough to cause harm. Older children ...

Space Launch System Spacecraft/Payloads Integration and Evolution Office Advanced Development FY 2014 Annual Report

NASA Technical Reports Server (NTRS)

Crumbly, C. M.; Bickley, F. P.; Hueter, U.

2015-01-01

The Advanced Development Office (ADO), part of the Space Launch System (SLS) program, provides SLS with the advanced development needed to evolve the vehicle from an initial Block 1 payload capability of 70 metric tons (t) to an eventual capability Block 2 of 130 t, with intermediary evolution options possible. ADO takes existing technologies and matures them to the point that insertion into the mainline program minimizes risk. The ADO portfolio of tasks covers a broad range of technical developmental activities. The ADO portfolio supports the development of advanced boosters, upper stages, and other advanced development activities benefiting the SLS program. A total of 36 separate tasks were funded by ADO in FY 2014.

Advanced Oil Recovery Technologies for Improved Recovery From Slope Basin Clastic Reservoirs, Nash Draw Brushy Canyon Pool, Eddy County, New Mexico

DOE Office of Scientific and Technical Information (OSTI.GOV)

Mark B. Murphy

The overall goal of this project is to demonstrate that an advanced development drilling and pressure maintenance program based on advanced reservoir management methods can significantly improve oil recovery. The plan included developing a control area using standard reservoir management techniques and comparing its performance to an area developed using advanced methods. A key goal is to transfer advanced methodologies to oil and gas producers in the Permian Basin and elsewhere, and throughout the US oil and gas industry.

Advanced high temperature heat flux sensors

NASA Technical Reports Server (NTRS)

Atkinson, W.; Hobart, H. F.; Strange, R. R.

1983-01-01

To fully characterize advanced high temperature heat flux sensors, calibration and testing is required at full engine temperature. This required the development of unique high temperature heat flux test facilities. These facilities were developed, are in place, and are being used for advanced heat flux sensor development.

What Can Parents Expect During Their Infant's Well-Child Visits?

MedlinePlus

... Snapshot of Pregnancy & Infant Development Advances Snapshot of Child Development Advances Snapshot of Adult & Family Health Advances NICHD ... What can parents expect during their infant’s well-child visits? ... regularly because growth and development occur so quickly in the first 2 years ...

FY2016 Ceramic Fuels Development Annual Highlights

DOE Office of Scientific and Technical Information (OSTI.GOV)

Mcclellan, Kenneth James

Key challenges for the Advanced Fuels Campaign are the development of fuel technologies to enable major increases in fuel performance (safety, reliability, power and burnup) beyond current technologies, and development of characterization methods and predictive fuel performance models to enable more efficient development and licensing of advanced fuels. Ceramic fuel development activities for fiscal year 2016 fell within the areas of 1) National and International Technical Integration, 2) Advanced Accident Tolerant Ceramic Fuel Development, 3) Advanced Techniques and Reference Materials Development, and 4) Fabrication of Enriched Ceramic Fuels. High uranium density fuels were the focus of the ceramic fuels efforts.more » Accomplishments for FY16 primarily reflect the prioritization of identification and assessment of new ceramic fuels for light water reactors which have enhanced accident tolerance while also maintaining or improving normal operation performance, and exploration of advanced post irradiation examination techniques which will support more efficient testing and qualification of new fuel systems.« less

Necrotizing Enterocolitis (NEC)

MedlinePlus

... Snapshot of Pregnancy & Infant Development Advances Snapshot of Child Development Advances Snapshot of Adult & Family Health Advances NICHD ... decipher how group of proteins regulate immune cell development in mice Getting to Know the New NICHD Director Addressing Infants’ ... Safe to Sleep® National Child & Maternal Health Education Program RELATED WEBSITES NIH.gov ...

Professional excellence and career advancement in nursing: a conceptual framework for clinical leadership development.

PubMed

Adeniran, Rita Kudirat; Bhattacharya, Anand; Adeniran, Anthony A

2012-01-01

Increasingly, stakeholders in the health care community are recognizing nursing as key to solving the nation's health care issues. This acknowledgment provides a unique opportunity for nursing to demonstrate leadership by developing clinical nurse leaders to collaborate with the multidisciplinary care team in driving evidence-based, safe quality, cost-effective health care services. One approach for nursing success is standardizing the entry-level education for nurses and developing a uniform professional development and career advancement trajectory with appropriate incentives to encourage participation. A framework to guide and provide scientific evidence of how frontline nurses can be engaged will be paramount. The model for professional excellence and career advancement provides a framework that offers a clear path for researchers to examine variables influencing nurses' professional development and career advancement in a systematic manner. Professional Excellence and Career Advancement in Nursing underscores professional preparedness of a registered nurse as central to leadership development. It also describes the elements that influence nurses' participation in professional development and career advancement under 4 main categories emphasizing mentorship and self-efficacy as essential variables.

75 FR 15443 - Advancing the Development of Diagnostic Tests and Biomarkers for Tuberculosis; Public Workshop...

Federal Register 2010, 2011, 2012, 2013, 2014

2010-03-29

...] Advancing the Development of Diagnostic Tests and Biomarkers for Tuberculosis; Public Workshop; Request for... workshop entitled ``Advancing the Development of Diagnostic Tests and Biomarkers for Tuberculosis (TB... Tuberculosis in the United States, Committee on the Elimination of Tuberculosis in the United States, Division...

Technical Support Services for the Office of Naval Research Littoral Warfare Advanced Development Project

DTIC Science & Technology

2005-09-30

Technical Support Services for the Office of Naval Research Littoral Warfare Advanced Development Project William R. Metzger Marine...Support Services for the Office of Naval Research Littoral Warfare Advanced Development Project 5a. CONTRACT NUMBER 5b. GRANT NUMBER 5c. PROGRAM ELEMENT

Project T.E.A.M. (Technical Education Advancement Modules). Advanced Statistical Process Control.

ERIC Educational Resources Information Center

Dunlap, Dale

This instructional guide, one of a series developed by the Technical Education Advancement Modules (TEAM) project, is a 20-hour advanced statistical process control (SPC) and quality improvement course designed to develop the following competencies: (1) understanding quality systems; (2) knowing the process; (3) solving quality problems; and (4)…

24 CFR 203.256 - Insurance of open-end advance.

Code of Federal Regulations, 2010 CFR

2010-04-01

... 24 Housing and Urban Development 2 2010-04-01 2010-04-01 false Insurance of open-end advance. 203.256 Section 203.256 Housing and Urban Development Regulations Relating to Housing and Urban... Insurance § 203.256 Insurance of open-end advance. Insurance on an open-end advance will be evidenced by...

24 CFR 203.256 - Insurance of open-end advance.

Code of Federal Regulations, 2014 CFR

2014-04-01

... 24 Housing and Urban Development 2 2014-04-01 2014-04-01 false Insurance of open-end advance. 203.256 Section 203.256 Housing and Urban Development Regulations Relating to Housing and Urban... Insurance § 203.256 Insurance of open-end advance. Insurance on an open-end advance will be evidenced by...

24 CFR 203.256 - Insurance of open-end advance.

Code of Federal Regulations, 2011 CFR

2011-04-01

... 24 Housing and Urban Development 2 2011-04-01 2011-04-01 false Insurance of open-end advance. 203.256 Section 203.256 Housing and Urban Development Regulations Relating to Housing and Urban... Insurance § 203.256 Insurance of open-end advance. Insurance on an open-end advance will be evidenced by...

24 CFR 203.256 - Insurance of open-end advance.

Code of Federal Regulations, 2013 CFR

2013-04-01

... 24 Housing and Urban Development 2 2013-04-01 2013-04-01 false Insurance of open-end advance. 203.256 Section 203.256 Housing and Urban Development Regulations Relating to Housing and Urban... Insurance § 203.256 Insurance of open-end advance. Insurance on an open-end advance will be evidenced by...

24 CFR 203.256 - Insurance of open-end advance.

Code of Federal Regulations, 2012 CFR

2012-04-01

... 24 Housing and Urban Development 2 2012-04-01 2012-04-01 false Insurance of open-end advance. 203.256 Section 203.256 Housing and Urban Development Regulations Relating to Housing and Urban... Insurance § 203.256 Insurance of open-end advance. Insurance on an open-end advance will be evidenced by...

Stimulating Innovation and Accelerating the Development of Complex and Slowly Maturing Technologies Through Advanced Technology Prize Competitions

DTIC Science & Technology

2007-06-15

technology prize competitions have been used since the 18th century to spur innovation and advance the development of complex and slowly maturing disruptive ... technologies The Defense Advanced Research Projects Agency (DARPA) has used advanced technology competitions in 2004 and 2005 to rapidly accelerate the

Faculty Development for Institutional Change: Lessons from an Advance Project

ERIC Educational Resources Information Center

Laursen, Sandra; Rocque, Bill

2009-01-01

The ADVANCE Institutional Transformation projects are remarkably diverse in their theories of action and choice of strategies. However, faculty development plays a role in many, and it was the central change strategy chosen by Leadership Education for Advancement and Promotion (LEAP), the 2002-2008 ADVANCE project at the University of Colorado at…

Laser Light Scattering, from an Advanced Technology Development Program to Experiments in a Reduced Gravity Environment

NASA Technical Reports Server (NTRS)

Meyer, William V.; Tscharnuter, Walther W.; Macgregor, Andrew D.; Dautet, Henri; Deschamps, Pierre; Boucher, Francois; Zuh, Jixiang; Tin, Padetha; Rogers, Richard B.; Ansari, Rafat R.

1994-01-01

Recent advancements in laser light scattering hardware are described. These include intelligent single card correlators; active quench/active reset avalanche photodiodes; laser diodes; and fiber optics which were used by or developed for a NASA advanced technology development program. A space shuttle experiment which will employ aspects of these hardware developments is previewed.

Affordable Development of a Nuclear Cryogenic Propulsion Stage

NASA Technical Reports Server (NTRS)

Houts, M. G.; Borowski, S. K.; George, J. A.; Kim, T.; Emrich, W. J.; Hickman, R. R.; Broadway, J. W.; Gerrish, H. P.; Adams, R. B.

2012-01-01

The fundamental capability of Nuclear Thermal Propulsion (NTP) is game changing for space exploration. A first generation Nuclear Cryogenic Propulsion Stage (NCPS) based on NTP could provide high thrust at a specific impulse above 900 s, roughly double that of state of the art chemical engines. The foundation provided by development and utilization of a NCPS could enable development of extremely high performance systems. The role of the NCPS in the development of advanced nuclear propulsion systems could be analogous to the role of the DC-3 in the development of advanced aviation. Progress made under the NCPS project could help enable both advanced NTP and advanced Nuclear Electric Propulsion (NEP).

Career advancement and professional development in nursing.

PubMed

Adeniran, Rita K; Smith-Glasgow, Mary Ellen; Bhattacharya, Anand; Xu, Yu

2013-01-01

Excellence underscores the need for nurses to keep their skills and competencies current through participation in professional development and career advancement. Evidence suggests that internationally educated nurses (IENs) progress relatively slowly through the career ladder and participate less in professional development compared with nurses educated in the United States (UENs). Mentorship and self-efficacy are considered major determinants of career advancement. The aim of the study was to understand the differences in levels of mentorship function and self-efficacy as well as the differences in participation in professional development and career advancement between UENs and IENs. A descriptive survey design was implemented using a Web-based survey. Significant disparities were noted in the role model function of mentoring and some professional development and career advancement measures between UENs and IENs. Mentorship is essential for professional growth. Sociodemographic characteristics of mentors are important because mentors are role models. Standardized career advancement structures are needed to promote professional growth. Published by Mosby, Inc.

Development of Nanosized/Nanostructured Silicon as Advanced Anodes for Lithium-Ion Cells

NASA Technical Reports Server (NTRS)

Wu, James J.

2015-01-01

NASA is developing high energy and high capacity Li-ion cell and battery designs for future exploration missions under the NASA Advanced Space Power System (ASPS) Program. The specific energy goal is 265 Wh/kg at 10 C. center dot Part of effort for NASA advanced Li-ion cells ? Anode: Silicon (Si) as an advanced anode. ? Electrolyte: advanced electrolyte with flame-retardant additives for enhanced performance and safety (NASA JPL).

What Are the Common Treatments for Necrotizing Enterocolitis?

MedlinePlus

... Snapshot of Pregnancy & Infant Development Advances Snapshot of Child Development Advances Snapshot of Adult & Family Health Advances NICHD ... decipher how group of proteins regulate immune cell development in mice Getting to Know the New NICHD Director Addressing Infants’ ... Safe to Sleep® National Child & Maternal Health Education Program RELATED WEBSITES NIH.gov ...

JEDI for Advanced Users | Jobs and Economic Development Impact Models |

Science.gov Websites

NREL for Advanced Users JEDI for Advanced Users The Jobs and Economic Development Impact (JEDI discussion. Users with more experience with power generation projects and/or economic impact analysis can Economic Analysis provides data for more than 400 economic sectors. Advanced users can refer to these

75 FR 76617 - Use of Community Development Loans by Community Financial Institutions To Secure Advances...

Federal Register 2010, 2011, 2012, 2013, 2014

2010-12-09

... long term advances to CFI members for purposes of financing community development activities. Section... provided that a Bank could make a long-term advance to a member only for the purposes of providing funds to the member for residential housing finance, except that it also allowed long-term advances to CFI...

Advancing nursing practice: redefining the theoretical and practical integration of knowledge.

PubMed

Christensen, Martin

2011-03-01

The aim of this paper is to offer an alternative knowing-how knowing-that framework of nursing knowledge, which in the past has been accepted as the provenance of advanced practice. The concept of advancing practice is central to the development of nursing practice and has been seen to take on many different forms depending on its use in context. To many it has become synonymous with the work of the advanced or expert practitioner; others have viewed it as a process of continuing professional development and skills acquisition. Moreover, it is becoming closely linked with practice development. However, there is much discussion as to what constitutes the knowledge necessary for advancing and advanced practice, and it has been suggested that theoretical and practical knowledge form the cornerstone of advanced knowledge. The design of this article takes a discursive approach as to the meaning and integration of knowledge within the context of advancing nursing practice. A thematic analysis of the current discourse relating to knowledge integration models in an advancing and advanced practice arena was used to identify concurrent themes relating to the knowing-how knowing-that framework which commonly used to classify the knowledge necessary for advanced nursing practice. There is a dichotomy as to what constitutes knowledge for advanced and advancing practice. Several authors have offered a variety of differing models, yet it is the application and integration of theoretical and practical knowledge that defines and develops the advancement of nursing practice. An alternative framework offered here may allow differences in the way that nursing knowledge important for advancing practice is perceived, developed and coordinated. What has inevitably been neglected is that there are various other variables which when transposed into the existing knowing-how knowing-that framework allows for advanced knowledge to be better defined. One of the more notable variables is pattern recognition, which became the focus of Benner's work on expert practice. Therefore, if this is included into the knowing-how knowing-that framework, the knowing-how becomes the knowledge that contributes to advancing and advanced practice and the knowing-that becomes the governing action based on a deeper understanding of the problem or issue. © 2011 Blackwell Publishing Ltd.

The Development of Environmental Barrier Coating Systems for SiC-SiC Ceramic Matrix Composites: Environment Effects on the Creep and Fatigue Resistance

NASA Technical Reports Server (NTRS)

Zhu, Dongming; Ghosn, Louis J.

2014-01-01

Topics covered include: Environmental barrier coating system development: needs, challenges and limitations; Advanced environmental barrier coating systems (EBCs) for CMC airfoils and combustors; NASA EBC systems and material system evolutions, Current turbine and combustor EBC coating emphases, Advanced development, processing, testing and modeling, EBC and EBC bond coats: recent advances; Design tool and life prediction of coated CMC components; Advanced CMC-EBC rig demonstrations; Summary and future directions.

[Development and application of information management system for advanced schistosomiasis chemotherapy and assistance in Jiangxi Province].

PubMed

Mao, Yuan-Hua; Li, Dong; Ning, An; Qiu, Ling; Xiong, Ji-Jie

2011-04-01

To develop the information management system for advanced schistosomiasis chemotherapy and assistance in Jiangxi Province. Based on Access 2003, the system was programmed by Visual Basic 6.0 and packaged by Setup Factory 8.0. In the system, advanced schistosomiasis data were able to be input, printed, indexed, and statistically analyzed. The system could be operated and maintained easily and timely. The information management system for advanced schistosomiasis chemotherapy and assistance in Jiangxi Province is successfully developed.

National Jet Fuels Combustion Program – Area #3 : Advanced Combustion Tests

DOT National Transportation Integrated Search

2017-12-31

The goal of this study is to develop, conduct, and analyze advanced laser and optical measurements in the experimental combustors developed under ASCENT National Fuel Combustion Program to measure sensitivity to fuel properties. We conducted advanced...

Operational considerations of the Advanced Photovoltaic Solar Array

NASA Technical Reports Server (NTRS)

Stella, Paul M.; Kurland, Richard M.

1992-01-01

Issues affecting the long-term operational performance of the Advanced Photovoltaic Solar Array (APSA) are discussed, with particular attention given to circuit electrical integrity from shadowed and cracked cell modules. The successful integration of individual advanced array components provides a doubling of array specific performance from the previous NASA-developed advanced array (SAFE). Flight test modules both recently fabricated and under fabrication are described. The development of advanced high-performance blanket technology for future APSA enhancement is presented.

Operational considerations of the Advanced Photovoltaic Solar Array

NASA Astrophysics Data System (ADS)

Stella, Paul M.; Kurland, Richard M.

Issues affecting the long-term operational performance of the Advanced Photovoltaic Solar Array (APSA) are discussed, with particular attention given to circuit electrical integrity from shadowed and cracked cell modules. The successful integration of individual advanced array components provides a doubling of array specific performance from the previous NASA-developed advanced array (SAFE). Flight test modules both recently fabricated and under fabrication are described. The development of advanced high-performance blanket technology for future APSA enhancement is presented.

Solar Cell and Array Technology Development for NASA Solar Electric Propulsion Missions

NASA Technical Reports Server (NTRS)

Piszczor, Michael; McNatt, Jeremiah; Mercer, Carolyn; Kerslake, Tom; Pappa, Richard

2012-01-01

NASA is currently developing advanced solar cell and solar array technologies to support future exploration activities. These advanced photovoltaic technology development efforts are needed to enable very large (multi-hundred kilowatt) power systems that must be compatible with solar electric propulsion (SEP) missions. The technology being developed must address a wide variety of requirements and cover the necessary advances in solar cell, blanket integration, and large solar array structures that are needed for this class of missions. Th is paper will summarize NASA's plans for high power SEP missions, initi al mission studies and power system requirements, plans for advanced photovoltaic technology development, and the status of specific cell and array technology development and testing that have already been conducted.

An overview of key technology thrusts at Bell Helicopter Textron

NASA Technical Reports Server (NTRS)

Harse, James H.; Yen, Jing G.; Taylor, Rodney S.

1988-01-01

Insight is provided into several key technologies at Bell. Specific topics include the results of ongoing research and development in advanced rotors, methodology development, and new configurations. The discussion on advanced rotors highlight developments on the composite, bearingless rotor, including the development and testing of full scale flight hardware as well as some of the design support analyses and verification testing. The discussion on methodology development concentrates on analytical development in aeromechanics, including correlation studies and design application. New configurations, presents the results of some advanced configuration studies including hardware development.

Systems study of transport aircraft incorporating advanced aluminum alloys

NASA Technical Reports Server (NTRS)

Sakata, I. F.

1982-01-01

A study was performed to quantify the potential benefits of utilizing advanced aluminum alloys in commercial transport aircraft and to define the effort necessary to develop fully the alloys to a viable commercial production capability. The comprehensive investigation (1) established realistic advanced aluminum alloy property goals to maximize aircraft systems effectiveness (2) identified performance and economic benefits of incorporating the advanced alloy in future advanced technology commercial aircraft designs (3) provided a recommended plan for development and integration of the alloys into commercial aircraft production (4) provided an indication of the timing and investigation required by the metal producing industry to support the projected market and (5) evaluate application of advanced aluminum alloys to other aerospace and transit systems as a secondary objective. The results of the investigation provided a roadmap and identified key issues requiring attention in an advanced aluminum alloy and applications technology development program.

Development of a conceptual policy framework for advanced practice nursing: an ethnographic study.

PubMed

Schober, Madrean M; Gerrish, Kate; McDonnell, Ann

2016-06-01

To report on a study examining policy development for advanced practice nursing from intent of policy to realization in practice. Inclusion of advanced practice nursing roles in the healthcare workforce is a worldwide trend. Optimal advanced nursing practice requires supportive policies. Little is known about how policy is developed and implemented. Ethnography using an instrumental case study approach was selected to give an in-depth understanding of the experiences of one country (Singapore) to contribute to insight into development elsewhere. The four-phase study was conducted from 2008-2012 and included document analysis (n = 47), interviews with key policy decision makers (n = 12), interviews with nursing managers and medical directors (n = 11), interviews and participant observation with advanced practice nurses (n = 15). Key policymakers in positions of authority were able to promote policy development. However, this was characterized by lack of strategic planning for implementation. A vague understanding by nursing managers and medical directors of policies, the role and its position in the healthcare workforce led to indecision and uncertainty in execution. Advanced practice nurses developed their role based on theory acquired in their academic programme but were unsure what role to assume in practice. Lack of clear guidelines led to unanticipated difficulties for institutions and healthcare systems. Strategic planning could facilitate integration of advanced practice nurses into the healthcare workforce. A Conceptual Policy Framework is proposed as a guide for a coordinated approach to policy development and implementation for advanced practice nursing. © 2016 John Wiley & Sons Ltd.

Development of a video-based education and process change intervention to improve advance cardiopulmonary resuscitation decision-making.

PubMed

Waldron, Nicholas; Johnson, Claire E; Saul, Peter; Waldron, Heidi; Chong, Jeffrey C; Hill, Anne-Marie; Hayes, Barbara

2016-10-06

Advance cardiopulmonary resuscitation (CPR) decision-making and escalation of care discussions are variable in routine clinical practice. We aimed to explore physician barriers to advance CPR decision-making in an inpatient hospital setting and develop a pragmatic intervention to support clinicians to undertake and document routine advance care planning discussions. Two focus groups, which involved eight consultants and ten junior doctors, were conducted following a review of the current literature. A subsequent iterative consensus process developed two intervention elements: (i) an updated 'Goals of Patient Care' (GOPC) form and process; (ii) an education video and resources for teaching advance CPR decision-making and communication. A multidisciplinary group of health professionals and policy-makers with experience in systems development, education and research provided critical feedback. Three key themes emerged from the focus groups and the literature, which identified a structure for the intervention: (i) knowing what to say; (ii) knowing how to say it; (iii) wanting to say it. The themes informed the development of a video to provide education about advance CPR decision-making framework, improving communication and contextualising relevant clinical issues. Critical feedback assisted in refining the video and further guided development and evolution of a medical GOPC approach to discussing and recording medical treatment and advance care plans. Through an iterative process of consultation and review, video-based education and an expanded GOPC form and approach were developed to address physician and systemic barriers to advance CPR decision-making and documentation. Implementation and evaluation across hospital settings is required to examine utility and determine effect on quality of care.

Interprofessional development and implementation of a pharmacist professional advancement and recognition program.

PubMed

Hager, David; Chmielewski, Eric; Porter, Andrea L; Brzozowski, Sarah; Rough, Steve S; Trapskin, Philip J

2017-11-15

The interprofessional development, implementation, and outcomes of a pharmacist professional advancement and recognition program (PARP) at an academic medical center are described. Limitations of the legacy advancement program, in combination with low rates of employee engagement in peer recognition and professional development, at the UW Health department of pharmacy led to the creation of a task force comprising pharmacists from all practice areas to develop a new pharmacist PARP. Senior leadership within the organization expanded the scope of the project to include an interprofessional work group tasked to develop guidelines and core principles that other professional staff could use to reduce variation across advancement and recognition programs. Key program design elements included a triennial review of performance against advancement standards and the use of peer review to supplement advancement decisions. The primary objective was to meaningfully improve pharmacists' engagement as measured through employee engagement surveys. Secondary outcomes of interest included the results of pharmacist and management satisfaction surveys and the program's impact on the volume and mix of pharmacist professional development activities. Of the 126 eligible pharmacists, 93 participated in the new program. The majority of pharmacists was satisfied with the program. For pharmacists who were advanced as part of the program, meaningful increases in employee engagement scores were observed, and a mean of 95 hours of professional development and quality-improvement activities was documented. Implementation of a PARP helped increase pharmacist engagement through participation in quality-improvement and professional development activities. The program also led to the creation of organizationwide interprofessional guidelines for advancement programs within various healthcare disciplines. Copyright © 2017 by the American Society of Health-System Pharmacists, Inc. All rights reserved.

IECEC '84: Advanced energy systems - Their role in our future; Proceedings of the Nineteenth Intersociety Energy Conversion Engineering Conference, San Francisco, CA, August 19-24, 1984. Volumes 1, 2, 3, & 4

NASA Astrophysics Data System (ADS)

Among the topics discussed are: advanced energy conversion concepts, power sources for aircraft and spacecraft, alternate fuels for industrial and vehicular applications, biomass-derived fuels, electric vehicle design and development status, electrochemical energy conversion systems, electric power generation cycles, energy-efficient industrial processes, and energy policy and system analysis. Also discussed are advanced methods for energy storage and transport, fossil fuel conversion systems, geothermal energy system development and performance, novel and advanced heat engines, hydrogen fuel-based energy systems, MHD technology development status, nuclear energy systems, solar energy conversion methods, advanced heating and cooling systems, Stirling cycle device development, terrestrial photovoltaic systems, and thermoelectric and thermionic systems.

Advanced Fuels Campaign FY 2015 Accomplishments Report

DOE Office of Scientific and Technical Information (OSTI.GOV)

Braase, Lori Ann; Carmack, William Jonathan

2015-10-29

The mission of the Advanced Fuels Campaign (AFC) is to perform research, development, and demonstration (RD&D) activities for advanced fuel forms (including cladding) to enhance the performance and safety of the nation’s current and future reactors; enhance proliferation resistance of nuclear fuel; effectively utilize nuclear energy resources; and address the longer-term waste management challenges. This report is a compilation of technical accomplishment summaries for FY-15. Emphasis is on advanced accident-tolerant LWR fuel systems, advanced transmutation fuels technologies, and capability development.

Douglas D-558-1 Skystreak landing on lakebed

NASA Technical Reports Server (NTRS)

1949-01-01

The Douglas D-558-1 Skystreak is seen close-up in this 1949 photograph. The D-558-1 made its landing approach at about 210 knots and landed at 143 knots. Despite the (then) high landing speed, the pilots found the airplane's landing characteristics to be satisfactory. Conceived in 1945, the D558-1 Skystreak was designed by the Douglas Aircraft Company for the U.S. Navy Bureau of Aeronautics, in conjunction with the National Advisory Committee for Aeronautics (NACA). The Skystreaks were turojet powered aircraft that took off from the ground under their own power and had straight wings and tails. All three D-558-1 Skystreaks were powered by Allison J35-A-11 turbojet engines producing 5,000 pounds of thrust. All the Skystreaks were initially painted scarlet, which lead to the nickname 'crimson test tube.' NACA later had the color of the Skystreaks changed to white to improve optical tracking and photography. The Skystreaks carried 634 pounds of instrumentation and were almost ideal first-generation, simple, transonic research airplanes. Much of the research performed by the D-558-1 Skystreaks was quickly overshadowed in the public mind by Chuck Yeager and the X-1 rocketplane. However, the Skystreak performed an important role in aeronautical research by flying for extended periods of time at transonic speeds, which freed the X-1 to fly for limited periods at supersonic speeds.

DOE Office of Scientific and Technical Information (OSTI.GOV)

Ziritt, Jose Luis

The results from Annex XIII of the Cooperative Agreement between the United States Department of Energy (DOE) and the Ministry of Energy and Mines of the Republic of Venezuela (MEMV) have been documented and published with many researchers involved. Integrate comprehensive research programs in the area of Microbial Enhanced Oil Recovery (MEOR) ranged from feasibility laboratory studies to full-scale multi-well field pilots. The objective, to cooperate in a technical exchange of ideas and information was fully met throughout the life of the Annex. Information has been exchanged between the two countries through published reports and technical meetings between experts inmore » both country's research communities. The meetings occurred every two years in locations coincident with the International MEOR conferences & workshops sponsored by DOE (June 1990, University of Oklahoma, September 1992, Brookhaven, September 1995, National Institute of Petroleum and Energy Research). Reports and publications produced during these years are listed in Appendix B. Several Annex managers have guided the exchange through the years. They included Luis Vierma, Jose Luis Zirritt, representing MEMV and E. B. Nuckols, Edith Allison, and Rhonda Lindsey, representing the U.S. DOE. Funding for this area of research remained steady for a few years but decreased in recent years. Because both countries have reduced research programs in this area, future exchanges on this topic will occur through ANNEX XV. Informal networks established between researchers through the years should continue to function between individuals in the two countries.« less

AST Critical Propulsion and Noise Reduction Technologies for Future Commercial Subsonic Engines: Separate-Flow Exhaust System Noise Reduction Concept Evaluation

NASA Technical Reports Server (NTRS)

Janardan, B. A.; Hoff, G. E.; Barter, J. W.; Martens, S.; Gliebe, P. R.; Mengle, V.; Dalton, W. N.; Saiyed, Naseem (Technical Monitor)

2000-01-01

This report describes the work performed by General Electric Aircraft Engines (GEAE) and Allison Engine Company (AEC) on NASA Contract NAS3-27720 AoI 14.3. The objective of this contract was to generate quality jet noise acoustic data for separate-flow nozzle models and to design and verify new jet-noise-reduction concepts over a range of simulated engine cycles and flight conditions. Five baseline axisymmetric separate-flow nozzle models having bypass ratios of five and eight with internal and external plugs and 11 different mixing-enhancer model nozzles (including chevrons, vortex-generator doublets, and a tongue mixer) were designed and tested in model scale. Using available core and fan nozzle hardware in various combinations, 28 GEAE/AEC separate-flow nozzle/mixing-enhancer configurations were acoustically evaluated in the NASA Glenn Research Center Aeroacoustic and Propulsion Laboratory. This report describes model nozzle features, facility and data acquisition/reduction procedures, the test matrix, and measured acoustic data analyses. A number of tested core and fan mixing enhancer devices and combinations of devices gave significant jet noise reduction relative to separate-flow baseline nozzles. Inward-flip and alternating-flip core chevrons combined with a straight-chevron fan nozzle exceeded the NASA stretch goal of 3 EPNdB jet noise reduction at typical sideline certification conditions.

Vehicle safety : technologies, challenges, and research development expenditures for advanced air bags

DOT National Transportation Integrated Search

2001-06-01

Some advanced air bag technologies are currently being installed in vehicles and others are still being developed. The principal advanced technology that is currently being installed in some vehicles is air bags that can inflate with lower or higher ...

Advances in induction-heated plasma torch technology

NASA Technical Reports Server (NTRS)

Poole, J. W.; Vogel, C. E.

1972-01-01

Continuing research has resulted in significant advances in induction-heated plasma torch technology which extend and enhance its potential for broad range of uses in chemical processing, materials development and testing, and development of large illumination sources. Summaries of these advances are briefly described.

Advanced adaptive optics technology development

NASA Astrophysics Data System (ADS)

Olivier, Scot S.

2002-02-01

The NSF Center for Adaptive Optics (CfAO) is supporting research on advanced adaptive optics technologies. CfAO research activities include development and characterization of micro-electro-mechanical systems (MEMS) deformable mirror (DM) technology, as well as development and characterization of high-resolution adaptive optics systems using liquid crystal (LC) spatial light modulator (SLM) technology. This paper presents an overview of the CfAO advanced adaptive optics technology development activities including current status and future plans.

Development of advanced fuel cell system, phase 2

NASA Technical Reports Server (NTRS)

Handley, L. M.; Meyer, A. P.; Bell, W. F.

1973-01-01

A multiple task research and development program was performed to improve the weight, life, and performance characteristics of hydrogen-oxygen alkaline fuel cells for advanced power systems. Development and characterization of a very stable gold alloy catalyst was continued from Phase I of the program. A polymer material for fabrication of cell structural components was identified and its long term compatibility with the fuel cell environment was demonstrated in cell tests. Full scale partial cell stacks, with advanced design closed cycle evaporative coolers, were tested. The characteristics demonstrated in these tests verified the feasibility of developing the engineering model system concept into an advanced lightweight long life powerplant.

Schedule Risks Due to Delays in Advanced Technology Development

NASA Technical Reports Server (NTRS)

Reeves, John D. Jr.; Kayat, Kamal A.; Lim, Evan

2008-01-01

This paper discusses a methodology and modeling capability that probabilistically evaluates the likelihood and impacts of delays in advanced technology development prior to the start of design, development, test, and evaluation (DDT&E) of complex space systems. The challenges of understanding and modeling advanced technology development considerations are first outlined, followed by a discussion of the problem in the context of lunar surface architecture analysis. The current and planned methodologies to address the problem are then presented along with sample analyses and results. The methodology discussed herein provides decision-makers a thorough understanding of the schedule impacts resulting from the inclusion of various enabling advanced technology assumptions within system design.

Advanced Power Technology Development Activities for Small Satellite Applications

NASA Technical Reports Server (NTRS)

Piszczor, Michael F.; Landis, Geoffrey A.; Miller, Thomas B.; Taylor, Linda M.; Hernandez-Lugo, Dionne; Raffaelle, Ryne; Landi, Brian; Hubbard, Seth; Schauerman, Christopher; Ganter, Mathew;

The development of leadership outcome-indicators evaluating the contribution of clinical specialists and advanced practitioners to health care: a secondary analysis.

PubMed

Elliott, Naomi; Begley, Cecily; Kleinpell, Ruth; Higgins, Agnes

2014-05-01

To report a secondary analysis of data collected from the case study phase of a national study of advanced practitioners and to develop leadership outcome-indicators appropriate for advanced practitioners. In many countries, advanced practitioners in nursing and midwifery have responsibility as leaders for health care development, but without having leadership outcome measures available they are unable to demonstrate the results of their activities. In Ireland, a sequential mixed method research study was used to develop a validated tool for the evaluation of clinical specialists and advanced practitioners. Despite strong evidence of leadership activities, few leadership-specific outcomes were generated from the primary analysis. Secondary analysis of a multiple case study data set. Data set comprised 23 case studies of advanced practitioner/clinical specialists from 13 sites across each region in Ireland from all divisions of the Nursing Board Register. Data were collected 2008-2010. Data sources included non-participant observation (n = 92 hours) of advanced practitioners in practice, interviews with clinicians (n = 21), patients (n = 20) and directors of nursing/midwifery (n = 13) and documents. Analysis focused on leadership outcome-indicator development in line with the National Health Service's Good Indicators Guide. The four categories of leadership outcomes for advanced practitioner developed were as follows: (i) capacity and capability building of multidisciplinary team; (ii) measure of esteem; (iii) new initiatives for clinical practice and healthcare delivery; and (iv) clinical practice based on evidence. The proposed set of leadership outcome-indicators derived from a secondary analysis captures the complexity of leadership in practice. They add to existing clinical outcomes measuring advanced practice. © 2013 John Wiley & Sons Ltd.

Framework Programmable Platform for the Advanced Software Development Workstation (FPP/ASDW). Demonstration framework document. Volume 1: Concepts and activity descriptions

NASA Technical Reports Server (NTRS)

Mayer, Richard J.; Blinn, Thomas M.; Dewitte, Paul S.; Crump, John W.; Ackley, Keith A.

1992-01-01

The Framework Programmable Software Development Platform (FPP) is a project aimed at effectively combining tool and data integration mechanisms with a model of the software development process to provide an intelligent integrated software development environment. Guided by the model, this system development framework will take advantage of an integrated operating environment to automate effectively the management of the software development process so that costly mistakes during the development phase can be eliminated. The Advanced Software Development Workstation (ASDW) program is conducting research into development of advanced technologies for Computer Aided Software Engineering (CASE).

Conceptual definition of a technology development mission for advanced solar dynamic power systems

NASA Technical Reports Server (NTRS)

Migra, R. P.

1986-01-01

An initial conceptual definition of a technology development mission for advanced solar dynamic power systems is provided, utilizing a space station to provide a dedicated test facility. The advanced power systems considered included Brayton, Stirling, and liquid metal Rankine systems operating in the temperature range of 1040 to 1400 K. The critical technologies for advanced systems were identified by reviewing the current state of the art of solar dynamic power systems. The experimental requirements were determined by planning a system test of a 20 kWe solar dynamic power system on the space station test facility. These requirements were documented via the Mission Requirements Working Group (MRWG) and Technology Development Advocacy Group (TDAG) forms. Various concepts or considerations of advanced concepts are discussed. A preliminary evolutionary plan for this technology development mission was prepared.

DOE/JPL advanced thermionic technology program

NASA Technical Reports Server (NTRS)

1979-01-01

Progress made in different tasks of the advanced thermionic technology program is described. The tasks include surface and plasma investigations (surface characterization, spectroscopic plasma experiments, and converter theory); low temperature converter development (tungsten emitter, tungsten oxide collector and tungsten emitter, nickel collector); component hardware development (hot shell development); flame-fired silicon carbide converters; high temperature and advanced converter studies; postoperational diagnostics; and correlation of design interfaces.

Aerospace Materials Process Modelling

DTIC Science & Technology

1988-08-01

development of advanced technologies for the fabrication of close-tolerance parts, in conjunction with the development of advanced materials, plays a key...1883. 17. Gegel, H. L., et al., "Materials Modeling and Intrinsic Workability for Simulation of Bulk Deformiti6n," Advanced Technology of Plasticity, Vol...process in the last three decades. As a result of technological advances gained in aerospace industry there has been an increasing demand for the

Center/TRACON Automation System: Development and Evaluation in the Field

DOT National Transportation Integrated Search

1993-10-01

Technological advances are changing the way that advanced air traffic control : automation should be developed and assessed. Current standards and practices of : system development place field testing at the end of the development process. : While su...

Manufacturing development of DC-10 advanced rudder

NASA Technical Reports Server (NTRS)

Cominsky, A.

1979-01-01

The design, manufacture, and ground test activities during development of production methods for an advanced composite rudder for the DC-10 transport aircraft are described. The advanced composite aft rudder is satisfactory for airline service and a cost saving in a full production manufacturing mode is anticipated.

Graphite/Polyimide Composites. [conference on Composites for Advanced Space Transportation Systems

NASA Technical Reports Server (NTRS)

Dexter, H. B. (Editor); Davis, J. G., Jr. (Editor)

1979-01-01

Technology developed under the Composites for Advanced Space Transportation System Project is reported. Specific topics covered include fabrication, adhesives, test methods, structural integrity, design and analysis, advanced technology developments, high temperature polymer research, and the state of the art of graphite/polyimide composites.

Methods for identifying high collision concentrations for identifying potential safety improvements : development of advanced type 2 safety performance functions.

DOT National Transportation Integrated Search

2016-06-30

This research developed advanced type 2 safety performance functions (SPF) for roadway segments, intersections and ramps on the entire Caltrans network. The advanced type 2 SPFs included geometrics, traffic volume and hierarchical random effects, whi...

Roadmap of Advanced GNC and Image Processing Algorithms for Fully Autonomous MSR-Like Rendezvous Missions

NASA Astrophysics Data System (ADS)

Strippoli, L. S.; Gonzalez-Arjona, D. G.

2018-04-01

GMV extensively worked in many activities aimed at developing, validating, and verifying up to TRL-6 advanced GNC and IP algorithms for Mars Sample Return rendezvous working under different ESA contracts on the development of advanced algorithms for VBN sensor.

Advanced planning surveys using automatic license plate reading equipment and evaluation of automatic license plate reading equipment for advanced planning

DOT National Transportation Integrated Search

1998-05-01

Recent technological advances in computer hardware, software, and image processing have led to the development of automated license plate reading equipment. This equipment has primarily been developed for enforcement and security applications, such a...

NREL and Solectria Developing Advanced Photovoltaic Inverters | Energy

Science.gov Websites

Systems Integration Facility | NREL Solectria NREL and Solectria Developing Advanced inverters offer a lot of potential to help with this, and manufacturers like Solectria are developing

Advanced optical manufacturing digital integrated system

NASA Astrophysics Data System (ADS)

Tao, Yizheng; Li, Xinglan; Li, Wei; Tang, Dingyong

2012-10-01

It is necessarily to adapt development of advanced optical manufacturing technology with modern science technology development. To solved these problems which low of ration, ratio of finished product, repetition, consistent in big size and high precision in advanced optical component manufacturing. Applied business driven and method of Rational Unified Process, this paper has researched advanced optical manufacturing process flow, requirement of Advanced Optical Manufacturing integrated System, and put forward architecture and key technology of it. Designed Optical component core and Manufacturing process driven of Advanced Optical Manufacturing Digital Integrated System. the result displayed effective well, realized dynamic planning Manufacturing process, information integration improved ratio of production manufactory.

An 110 Ma Crocodilian-Bearing Vertebrate Assemblage Preserved Between Basalt Flows on a mid-Pacific Seamount, ODP Site 865, Allison Guyot

NASA Astrophysics Data System (ADS)

Firth, J. V.; Yancey, T.; Alvarez-Zarikian, C.

2006-12-01

Crocodilian teeth, fish teeth, scales, and bones, and teeth and bones of uncertain affinities occur within a mudstone deposit sandwiched between basalt flows at the base of ODP Hole 865A on Allison Guyot in the middle of the Pacific Ocean. Age control from large benthic foraminifers, Sr-isotope stratigraphy, and radiometric ages of the basalt place the age of this assemblage at 110 \\mp 1.2 Ma, or late Aptian/early Albian. This deposit contains the oldest known crocodilian remains in the Pacific Realm. The vertebrate-bearing interval lies within a 30 cm mudstone unit overlying lithified fossiliferous limestone and underlying fossiliferous clayey limestone. The surface of the lithified limestone contains fish scales, vertebrate teeth and bones, and a carapace of the ostracod Cytherella. The lower 17 cm of mudstone is the prime vertebrate-bearing layer. It has a fining-upwards grain size trend, and an upward increase in dark coloration. The sand sized fraction is primarily pelletal glauconite, pyrite and fish debris. Limestone clasts up to several mm in diameter occur through the lower portion, whereas the higher portion contains sand laminae. A pristine 1 cm long crocodilian tooth, along with several smaller crocodilian teeth from this interval, attest to the presence of a saltwater crocodilian within the lagoon of this drowned mid-Pacific atoll. Common and varied fish teeth include both slender forms for piercing and grasping mobile prey and blunt flat-topped forms for crushing and grinding hard-shelled bottom living organisms such as oysters. The crushing teeth resemble those of the modern Black Drum fish, a bottom feeder common in shallow coastal environments. Abundant fish scales include both heavy phosphatic ganoid scales, a type present on many Mesozoic fish, and thin flexible scales of a type present on most modern fish. Some teeth and bone fragments are currently unidentified, and may represent vertebrates other than fish or crocodilians. No calcareous fossils are found within this unit. The lower unit grades upwards into a 5 cm thick black organic mudstone consisting of mostly amorphous organic debris, colonial algae, and smaller amounts of terrestrial spores, carbonized plant debris, and amber. No vertebrate remains are observed within the black mudstone. This unit in turn grades upwards into an 8 cm unit of mudstone with a coarsening-upwards grain size trend. This upper 8 cm unit contains only rare vertebrate remains, but has numerous oyster fragments and abundant, well preserved, articulated ostracod shells. The ostracod assemblage consists entirely of Cytherella (Suborder Platycopina). The entire 30 cm unit contains common pyrite, glauconite, and plant debris, and lacks calcareous fossils except in the uppermost part. This, as well as the occurrence of abundant Cytherella indicate sediment deposition in a restricted marine environment with low oxygen conditions. This discovery represents possibly the only known record of mid-Cretaceous reptilian remains from the mid- Pacific region, and the entire fossil assemblage provides valuable data for understanding the history of biotic migrations across the Cretaceous Pacific oceanic island realm. The intercalations of basalt flows with restricted marine and terrestrial sediments can be found not only in this ODP drill core but in others around the Pacific and shows the possibility of future discoveries of this type by scientific drilling of old seamounts.

Advancing automation and robotics technology for the Space Station Freedom and for the US economy

NASA Technical Reports Server (NTRS)

1990-01-01

The progress made by levels 1, 2, and 3 of the Office of Space Station in developing and applying advanced automation and robotics technology is described. Emphasis is placed upon the Space Station Freedom Program responses to specific recommendations made in the Advanced Technology Advisory Committee (ATAC) progress report 10, the flight telerobotic servicer, and the Advanced Development Program. Assessments are presented for these and other areas as they apply to the advancement of automation and robotics technology for the Space Station Freedom.

Overview of NASA Glenn Seal Project

NASA Technical Reports Server (NTRS)

Steinetz, Bruce M.; Dunlap, Patrick H., Jr.; Proctor, Margaret; Delgado, Irebert; Finkbeiner,Joshua; deGroh, Henry; Ritzert, Frank; Daniels, Christopher; DeMange, Jeff; Taylor, Shawn;

Technology readiness levels for advanced nuclear fuels and materials development

DOE PAGES

Carmack, W. J.; Braase, L. A.; Wigeland, R. A.; ...

2016-12-23

The Technology Readiness Level (TRL) process is used to quantitatively assess the maturity of a given technology. It was pioneered by the National Aeronautics and Space Administration (NASA) in the 1980s to develop and deploy new systems for space applications. The process was subsequently adopted by the Department of Defense (DoD) to develop and deploy new technology and systems for defense applications as well as the Department of Energy (DOE) to evaluate the maturity of new technologies in major construction projects. Advanced nuclear fuels and materials development is a critical technology needed for improving the performance and safety of currentmore » and advanced reactors, and ultimately closing the nuclear fuel cycle. Because deployment of new nuclear fuel forms requires a lengthy and expensive research, development, and demonstration program, applying the TRL concept to the advanced fuel development program is very useful as a management, communication and tracking tool. Furthermore, this article provides examples regarding the methods by which TRLs are currently used to assess the maturity of nuclear fuels and materials under development in the DOE Fuel Cycle Research and Development (FCRD) Program within the Advanced Fuels Campaign (AFC).« less

Technology readiness levels for advanced nuclear fuels and materials development

DOE Office of Scientific and Technical Information (OSTI.GOV)

Carmack, W. J.; Braase, L. A.; Wigeland, R. A.

The Technology Readiness Level (TRL) process is used to quantitatively assess the maturity of a given technology. It was pioneered by the National Aeronautics and Space Administration (NASA) in the 1980s to develop and deploy new systems for space applications. The process was subsequently adopted by the Department of Defense (DoD) to develop and deploy new technology and systems for defense applications as well as the Department of Energy (DOE) to evaluate the maturity of new technologies in major construction projects. Advanced nuclear fuels and materials development is a critical technology needed for improving the performance and safety of currentmore » and advanced reactors, and ultimately closing the nuclear fuel cycle. Because deployment of new nuclear fuel forms requires a lengthy and expensive research, development, and demonstration program, applying the TRL concept to the advanced fuel development program is very useful as a management, communication and tracking tool. Furthermore, this article provides examples regarding the methods by which TRLs are currently used to assess the maturity of nuclear fuels and materials under development in the DOE Fuel Cycle Research and Development (FCRD) Program within the Advanced Fuels Campaign (AFC).« less

Development Of Advanced Welding Control System

NASA Technical Reports Server (NTRS)

1990-01-01

Report describes development of next-generation control system for variable-polarity plasma arc (VPPA) welding. When fully developed, system expected to incorporate advanced sensors and adaptive control of position of and current in welding torch.

Preparing Future Biology Faculty: An Advanced Professional Development Program for Graduate Students

ERIC Educational Resources Information Center

Lockwood, Stephanie A.; Miller, Amanda J.; Cromie, Meghan M.

2014-01-01

Formal professional development programs for biology graduate students interested in becoming faculty members have come far; however, programs that provide advanced teaching experience for seasoned graduate teaching assistants are scarce. We outline an advanced program that focuses on further training of graduate teaching assistants in pedagogy…

FY2016 Advanced Combustion Engine Annual Progress Report

DOE Office of Scientific and Technical Information (OSTI.GOV)

None, None

The Advanced Combustion Engine research and development (R&D) subprogram within the DOE Vehicle Technologies Office (VTO) provides support and guidance for many cutting-edge automotive technologies under development. Research focuses on addressing critical barriers to commercializing higher efficiency, very low emissions advanced internal combustion engines for passenger and commercial vehicles.

FY2014 Advanced Combustion Engine Annual Progress Report

DOE Office of Scientific and Technical Information (OSTI.GOV)

None

2015-03-01

The Advanced Combustion Engine research and development (R&D) subprogram within the DOE Vehicle Technologies Office (VTO) provides support and guidance for many cutting-edge automotive technologies under development. Research focuses on addressing critical barriers to commercializing higher efficiency, very low emissions advanced internal combustion engines for passenger and commercial vehicles.

FY2015 Advanced Combustion Engine Annual Progress Report

DOE Office of Scientific and Technical Information (OSTI.GOV)

Singh, Gurpreet; Gravel, Roland M.; Howden, Kenneth C.

The Advanced Combustion Engine research and development (R&D) subprogram within the DOE Vehicle Technologies Office (VTO) provides support and guidance for many cutting-edge automotive technologies under development. Research focuses on addressing critical barriers to commercializing higher efficiency, very low emissions advanced internal combustion engines for passenger and commercial vehicles.

Research for Foreign Advanced Ports for Protection and Development Experience

NASA Astrophysics Data System (ADS)

Zhang, Lu; Tian, Mingjing; Zhao, Junjie; Shou, Youping; Wang, Ning; Qiao, Jianzhe; Li, Guanglou

2018-04-01

Into the twenty-first century, the process globalization of economic and trade is getting faster and faster, As of 2014, China's annual port trading amount topped the world, But in the port of environmental protection sustainable development approach with foreign advanced port environmental management concept has a big gap. Combined with the present situation of modern ports in China. Drawing lessons from foreign advanced environmental protection idea of port, in order to promote the protection of port environment in our country. The experience of protection and development of foreign advanced port environment will be discussed and discussed.

Materials and structures technology insertion into spacecraft systems: Successes and challenges

NASA Astrophysics Data System (ADS)

Rawal, Suraj

2018-05-01

Over the last 30 years, significant advancements have led to the use of multifunctional materials and structures technologies in spacecraft systems. This includes the integration of adaptive structures, advanced composites, nanotechnology, and additive manufacturing technologies. Development of multifunctional structures has been directly influenced by the implementation of processes and tools for adaptive structures pioneered by Prof. Paolo Santini. Multifunctional materials and structures incorporating non-structural engineering functions such as thermal, electrical, radiation shielding, power, and sensors have been investigated. The result has been an integrated structure that offers reduced mass, packaging volume, and ease of integration for spacecraft systems. Current technology development efforts are being conducted to develop innovative multifunctional materials and structures designs incorporating advanced composites, nanotechnology, and additive manufacturing. However, these efforts offer significant challenges in the qualification and acceptance into spacecraft systems. This paper presents a brief overview of the technology development and successful insertion of advanced material technologies into spacecraft structures. Finally, opportunities and challenges to develop and mature next generation advanced materials and structures are presented.

The intelligent user interface for NASA's advanced information management systems

NASA Technical Reports Server (NTRS)

Campbell, William J.; Short, Nicholas, Jr.; Rolofs, Larry H.; Wattawa, Scott L.

1987-01-01

NASA has initiated the Intelligent Data Management Project to design and develop advanced information management systems. The project's primary goal is to formulate, design and develop advanced information systems that are capable of supporting the agency's future space research and operational information management needs. The first effort of the project was the development of a prototype Intelligent User Interface to an operational scientific database, using expert systems and natural language processing technologies. An overview of Intelligent User Interface formulation and development is given.

Three-dimensional viscous design methodology for advanced technology aircraft supersonic inlet systems

NASA Technical Reports Server (NTRS)

Anderson, B. H.

1983-01-01

A broad program to develop advanced, reliable, and user oriented three-dimensional viscous design techniques for supersonic inlet systems, and encourage their transfer into the general user community is discussed. Features of the program include: (1) develop effective methods of computing three-dimensional flows within a zonal modeling methodology; (2) ensure reasonable agreement between said analysis and selective sets of benchmark validation data; (3) develop user orientation into said analysis; and (4) explore and develop advanced numerical methodology.

Technological advances in precision medicine and drug development.

PubMed

Maggi, Elaine; Patterson, Nicole E; Montagna, Cristina

New technologies are rapidly becoming available to expand the arsenal of tools accessible for precision medicine and to support the development of new therapeutics. Advances in liquid biopsies, which analyze cells, DNA, RNA, proteins, or vesicles isolated from the blood, have gained particular interest for their uses in acquiring information reflecting the biology of tumors and metastatic tissues. Through advancements in DNA sequencing that have merged unprecedented accuracy with affordable cost, personalized treatments based on genetic variations are becoming a real possibility. Extraordinary progress has been achieved in the development of biological therapies aimed to even further advance personalized treatments. We provide a summary of current and future applications of blood based liquid biopsies and how new technologies are utilized for the development of biological therapeutic treatments. We discuss current and future sequencing methods with an emphasis on how technological advances will support the progress in the field of precision medicine.

From challenges to advanced practice registered nursing role development: Qualitative interview study.

PubMed

Jokiniemi, Krista; Haatainen, Kaisa; Pietilä, Anna-Maija

2015-12-01

The aim of this study is to describe the factors hindering and facilitating the implementation of the advanced practice registered nurses role at Finnish university hospitals, and to examine the implications for its future development. A descriptive qualitative approach, using thematic individual interviews, was conducted in 2011 with a sample of 11 advanced practice registered nurses. The data were analysed using qualitative content analysis. The advanced practice registered nurses role barriers had an impact on the role development needs. In turn, the facilitating factors helped encounter the challenges of the role, therefore having an impact on both the current role achievement, as well as contributing to the future role development. The factors hindering and facilitating the advanced practice registered nurses role need to be acknowledged to support the role implementation and planning of the future of the role. © 2014 Wiley Publishing Asia Pty Ltd.

An Update on Improvements to NiCE Support for PROTEUS

DOE Office of Scientific and Technical Information (OSTI.GOV)

Bennett, Andrew; McCaskey, Alexander J.; Billings, Jay Jay

2015-09-01

The Department of Energy Office of Nuclear Energy's Nuclear Energy Advanced Modeling and Simulation (NEAMS) program has supported the development of the NEAMS Integrated Computational Environment (NiCE), a modeling and simulation workflow environment that provides services and plugins to facilitate tasks such as code execution, model input construction, visualization, and data analysis. This report details the development of workflows for the reactor core neutronics application, PROTEUS. This advanced neutronics application (primarily developed at Argonne National Laboratory) aims to improve nuclear reactor design and analysis by providing an extensible and massively parallel, finite-element solver for current and advanced reactor fuel neutronicsmore » modeling. The integration of PROTEUS-specific tools into NiCE is intended to make the advanced capabilities that PROTEUS provides more accessible to the nuclear energy research and development community. This report will detail the work done to improve existing PROTEUS workflow support in NiCE. We will demonstrate and discuss these improvements, including the development of flexible IO services, an improved interface for input generation, and the addition of advanced Fortran development tools natively in the platform.« less

An Overview and Status of NASA's Radioisotope Power Conversion Technology NRA

NASA Technical Reports Server (NTRS)

Anderson, David J.; Wong, Wayne A.; Tuttle, Karen L.

2005-01-01

NASA's Advanced Radioisotope Power Systems (RPS) development program is developing next generation radioisotope power conversion technologies that will enable future missions that have requirements that can not be met by either photovoltaic systems or by current Radioisotope Power System (RPS) technology. The Advanced Power Conversion Research and Technology project of the Advanced RPS development program is funding research and technology activities through the NASA Research Announcement (NRA) 02- OSS-01, "Research Opportunities in Space Science 2002" entitled "Radioisotope Power Conversion Technology" (RPCT), 13 August 2002. The objective of the RPCT NRA is to advance the development of radioisotope power conversion technologies to provide significant improvements over the state-of-practice General Purpose Heat Source/Radioisotope Thermoelectric Generator by providing significantly higher efficiency to reduce the number of radioisotope fuel modules, and increase specific power (watts/kilogram). Other Advanced RPS goals include safety, long-life, reliability, scalability, multi-mission capability, resistance to radiation, and minimal interference with the scientific payload. These advances would enable a factor of 2 to 4 decrease in the amount of fuel required to generate electrical power. The RPCT NRA selected advanced RPS power conversion technology research and development proposals in the following three areas: innovative RPS power conversion research, RPS power conversion technology development in a nominal 100We scale; and, milliwatt/multi-watt RPS (mWRPS) power conversion research. Ten RPCT NRA contracts were awarded in 2003 in the areas of Brayton, Stirling, thermoelectric (TE), and thermophotovoltaic (TPV) power conversion technologies. This paper will provide an overview of the RPCT NRA, and a brief summary of accomplishments over the first 18 months but focusing on advancements made over the last 6 months.

Advanced technologies impact on compressor design and development: A perspective

NASA Technical Reports Server (NTRS)

Ball, Calvin L.

1989-01-01

A historical perspective of the impact of advanced technologies on compression system design and development for aircraft gas turbine applications is presented. A bright view of the future is projected in which further advancements in compression system technologies will be made. These advancements will have a significant impact on the ability to meet the ever-more-demanding requirements being imposed on the propulsion system for advanced aircraft. Examples are presented of advanced compression system concepts now being studied. The status and potential impact of transitioning from an empirically derived design system to a computationally oriented system are highlighted. A current NASA Lewis Research Center program to enhance this transitioning is described.

Advanced teaching labs in physics - celebrating progress; challenges ahead

NASA Astrophysics Data System (ADS)

Peterson, Richard

A few examples of optical physics experiments may help us first reflect on significant progress on how advanced lab initiatives may now be more effectively developed, discussed, and disseminated - as opposed to only 10 or 15 years back. Many cooperative developments of the last decade are having profound impacts on advanced lab workers and students. Central to these changes are the programs of the Advanced Laboratory Physics Association (ALPhA) (Immersions, BFY conferences), AAPT (advlab-l server, ComPADRE, apparatus competitions, summer workshops/sessions), APS (Reichert Award, FEd activities and sessions), and the Jonathan F. Reichert Foundation (ALPhA support and institution matched equipment grants for Immersion participants). Broad NSF support has helped undergird several of these initiatives. Two of the most significant challenges before this new advanced lab community are (a) to somehow enhance funding opportunities for teaching equipment and apparatus in an era of minimal NSF equipment support, and (b) to help develop a more complementary relationship between research-based advanced lab pedagogies and the development of fresh physics experiments that help enable the mentoring and experimental challenge of our students.

Advanced Controller for the Free-Piston Stirling Convertor

NASA Technical Reports Server (NTRS)

Gerber, Scott S.; Jamison, Mike; Roth, Mary Ellen; Regan, Timothy F.

2004-01-01

The free-piston Stirling power convertor is being considered as an advanced power conversion technology to be used for future NASA deep space missions requiring long life radioisotope power systems. This technology has a conversion efficiency of over 25%, which is significantly higher than the efficiency of the Radioisotope Thermal-electric Generators (RTG) now in use. The NASA Glenn Research Center has long been recognized as a leader in Stirling technology and is responsible for the development of advanced technologies that are intended to significantly improve key characteristics of the Stirling convertor. The advanced technologies identified for development also consider the requirements of potential future missions and the new capabilities that have become available in the associated technical areas. One of the key areas identified for technology development is the engine controller. To support this activity, an advanced controller is being developed for the Stirling power convertor. This controller utilizes active power factor correction electronics and microcontroller-based controls. The object of this paper is to present an overview of the advanced controller concept with modeling, simulation and hardware test data.

Advanced Manufacturing Research | NREL

Science.gov Websites

engineering research in advanced manufacturing is focused on the identification and development of advanced materials and advanced processes that drive the impact of new energy technologies. Our world-class strategies, and policy evaluation. We partner with industry to bridge innovation gaps in advanced

Recent Advances in Algal Genetic Tool Development

DOE Office of Scientific and Technical Information (OSTI.GOV)

R. Dahlin, Lukas; T. Guarnieri, Michael

The goal of achieving cost-effective biofuels and bioproducts derived from algal biomass will require improvements along the entire value chain, including identification of robust, high-productivity strains and development of advanced genetic tools. Though there have been modest advances in development of genetic systems for the model alga Chlamydomonas reinhardtii, progress in development of algal genetic tools, especially as applied to non-model algae, has generally lagged behind that of more commonly utilized laboratory and industrial microbes. This is in part due to the complex organellar structure of algae, including robust cell walls and intricate compartmentalization of target loci, as well asmore » prevalent gene silencing mechanisms, which hinder facile utilization of conventional genetic engineering tools and methodologies. However, recent progress in global tool development has opened the door for implementation of strain-engineering strategies in industrially-relevant algal strains. Here, we review recent advances in algal genetic tool development and applications in eukaryotic microalgae.« less

Recent Advances in Algal Genetic Tool Development

DOE PAGES

R. Dahlin, Lukas; T. Guarnieri, Michael

2016-06-24

The goal of achieving cost-effective biofuels and bioproducts derived from algal biomass will require improvements along the entire value chain, including identification of robust, high-productivity strains and development of advanced genetic tools. Though there have been modest advances in development of genetic systems for the model alga Chlamydomonas reinhardtii, progress in development of algal genetic tools, especially as applied to non-model algae, has generally lagged behind that of more commonly utilized laboratory and industrial microbes. This is in part due to the complex organellar structure of algae, including robust cell walls and intricate compartmentalization of target loci, as well asmore » prevalent gene silencing mechanisms, which hinder facile utilization of conventional genetic engineering tools and methodologies. However, recent progress in global tool development has opened the door for implementation of strain-engineering strategies in industrially-relevant algal strains. Here, we review recent advances in algal genetic tool development and applications in eukaryotic microalgae.« less

Thermal Analysis and Design of an Advanced Space Suit

NASA Technical Reports Server (NTRS)

Lin, Chin H.; Campbell, Anthony B.; French, Jonathan D.; French, D.; Nair, Satish S.; Miles, John B.

2000-01-01

The thermal dynamics and design of an Advanced Space Suit are considered. A transient model of the Advanced Space Suit has been developed and implemented using MATLAB/Simulink to help with sizing, with design evaluation, and with the development of an automatic thermal comfort control strategy. The model is described and the thermal characteristics of the Advanced Space suit are investigated including various parametric design studies. The steady state performance envelope for the Advanced Space Suit is defined in terms of the thermal environment and human metabolic rate and the transient response of the human-suit-MPLSS system is analyzed.

A Complex Approach to UXO Discrimination: Combining Advanced EMI Forward Models and Statistical Signal Processing

DTIC Science & Technology

2012-01-01

discrimination at live-UXO sites. Namely, under this project first we developed and implemented advanced, physically complete forward EMI models such as, the...detection and discrimination at live-UXO sites. Namely, under this project first we developed and implemented advanced, physically complete forward EMI...Shubitidze of Sky Research and Dartmouth College, conceived, implemented , and tested most of the approaches presented in this report. He developed

[Technology development as social process: prospects and frontiers of social scientific elucidation of technological advancement].

PubMed

Dierkes, M

1990-05-01

This article provides an overview of the new developments in social scientific technology research which have changed considerably as a result of public debate and reactions to the importance of advancements in technology. The shift in emphasis, away from the effects of technology to its shaping, is described and certain hypotheses and concepts of advancement in the study of the social conditions underlying technical development processes are presented.

FAA/NASA International Symposium on Advanced Structural Integrity Methods for Airframe Durability and Damage Tolerance

NASA Technical Reports Server (NTRS)

Harris, Charles E. (Editor)

1994-01-01

International technical experts in durability and damage tolerance of metallic airframe structures were assembled to present and discuss recent research findings and the development of advanced design and analysis methods, structural concepts, and advanced materials. The symposium focused on the dissemination of new knowledge and the peer-review of progress on the development of advanced methodologies. Papers were presented on: structural concepts for enhanced durability, damage tolerance, and maintainability; new metallic alloys and processing technology; fatigue crack initiation and small crack effects; fatigue crack growth models; fracture mechanics failure, criteria for ductile materials; structural mechanics methodology for residual strength and life prediction; development of flight load spectra for design and testing; and advanced approaches to resist corrosion and environmentally assisted fatigue.

Junior High School Science.

ERIC Educational Resources Information Center

Brinson, Gail; And Others

Science instruction is the topic of this guide developed for the junior high schools of Duval County, Jacksonville, Florida. The subjects covered are (1) Biology I, Advanced, for grades 9-12; (2) Earth/Physical Science, Advanced, for advanced 8th graders; (3) Earth/Physical Science, Advanced (Field Test), for advanced 8th graders; (4) Earth…

Measuring Professional Identity Development among Counselor Trainees

ERIC Educational Resources Information Center

Prosek, Elizabeth A.; Hurt, Kara M.

2014-01-01

This study examined the differences in professional identity development between novice and advanced counselor trainees (N = 161). Multivariate analyses of variance indicated significant differences between groups. Specifically, advanced counselor trainees demonstrated greater professional development compared with novice counselor trainees. No…

Advanced Electrical Materials and Component Development

NASA Technical Reports Server (NTRS)

Schwarze, Gene E.

2003-01-01

The primary means to develop advanced electrical components is to develop new and improved materials for magnetic components (transformers, inductors, etc.), capacitors, and semiconductor switches and diodes. This paper will give a description and status of the internal and external research sponsored by NASA Glenn Research Center on soft magnetic materials, dielectric materials and capacitors, and high quality silicon carbide (SiC) atomically smooth substrates. The rationale for and the benefits of developing advanced electrical materials and components for the PMAD subsystem and also for the total power system will be briefly discussed.

Overview of NASA Glenn Seal Project

NASA Technical Reports Server (NTRS)

Steinetz, Bruce M.; Dunlap, Patrick; Proctor, Margaret; Delgado, Irebert; Finkbeiner, Josh; DeMange, Jeff; Daniels, Christopher C.; Taylor, Shawn; Oswald, Jay

2006-01-01

NASA Glenn is currently performing seal research supporting both advanced turbine engine development and advanced space vehicle/propulsion system development. Studies have shown that decreasing parasitic leakage through applying advanced seals will increase turbine engine performance and decrease operating costs. Studies have also shown that higher temperature, long life seals are critical in meeting next generation space vehicle and propulsion system goals in the areas of performance, reusability, safety, and cost. NASA Glenn is developing seal technology and providing technical consultation for the Agency s key aero- and space technology development programs.

[The debate on the development of advanced competences].

PubMed

Dimonte, Valerio; Palese, Alvisa; Chiari, Paolo; Laquintana, Dario; Tognoni, Gianni; Di Giulio, Paola

2016-01-01

. The debate on the development of advanced nursing competences. The dossier aims to describe and disentagle the present Italian and international debate on the development and recognition of advanced nursing competences. Following a general brief description of the legislative national background, the attention is first of all focused on the lack of clarity on the definition of advanced competence, which is further complicated by the issue of their formal, contractual and economic recognition. To explore these issues a list of contributions is presented and some proposals are formulated to favor a better oriented development of the debate: a. A convenience sample of 139 nurses were interviewed asking to describe problems occurred in the last month that could prompt the intervention of an expert nurse and to list the clinical, managerial and educational competences of a specialized nurse in their ward. The results document the quality and the dispersion of the definitions which are perceived and applied in the general settings of care. b. The issue the post basic courses (master, specialization) offered to nurses in 2015-2016 by Italian universities were described and their aims. While the contribution of the courses in increasing the theoretical knowledge is well defined, the aims and the description of the clinical training are badly developed and an acquisition of advanced competences would seem unlikely. c. The definition of advanced competences was explored in the international literature: while evidences are available on the impact of advanced nursing on patients' outcomes, what is advanced nursing is far from being clear, and an impressive list of roles, activities and functions are considered advanced. d. Although at national level there is no formal recognition for nurses with advanced competences (with the exception of the head nurse that holds mostly an organizational rather than clinical role), the opportunities for promoting the role of specialistic/advanced nurses were described. An interview to 20 nursing managers representing 23 Italian hospitals and districts shows the huge variability of what is recognized and considered specialistic/advanced competence. Competences in stoma care, venous catheters, pressure sores, do not necessarily cover the concept of advanced competence. e. Two further contributions explore how the challenge of what is ill-defined (or cannot be defined) can be transformed in a methodological opportunity and how the growth of an health profession may break the delicate balance of the boundaries between professions.

Regional characteristics relevant to advanced technology cogeneration development. [industrial energy

NASA Technical Reports Server (NTRS)

Manvi, R.

1981-01-01

To assist DOE in establishing research and development funding priorities in the area of advanced energy conversion technoloy, researchers at the Jet Propulsion Laboratory studied those specific factors within various regions of the country that may influence cogeneration with advanced energy conversion systems. Regional characteristics of advanced technology cogeneration possibilities are discussed, with primary emphasis given to coal derived fuels. Factors considered for the study were regional industry concentration, purchased fuel and electricity prices, environmental constraints, and other data of interest to industrial cogeneration.

Exploratory technology research program for electrochemical energy storage

NASA Astrophysics Data System (ADS)

Kinoshita, K.

1992-06-01

The U.S. Department of Energy's Office of Propulsion Systems provides support for an electrochemical energy storage program, that includes research and development (R&D) on advanced rechargeable batteries and fuel cells. A major goal of this program is to develop electrochemical power sources suitable for application in electric vehicles. The program centers on advanced systems that offer the potential for high performance and low life-cycle costs. The DOE Electrochemical Energy Storage Program is divided into two projects: the Electric Vehicle Advanced Battery Systems Development (EVABS) Program and the Exploratory Technology Research (ETR) Program. The EVABS Program management responsibility has been assigned to Sandia National Laboratory, and the Lawrence Berkeley Laboratory is responsible for management of the ETR Program. The EVABS and ETR Programs include an integrated matrix of R&D efforts designed to advance progress on several candidate electrochemical systems. The United States Advanced Battery Consortium (USABC), a tripartite undertaking between DOE, the U.S. automobile manufacturers and the Electric Power Research Institute (EPRI), was formed in 1991 to accelerate the development of advanced batteries for consumer EVs. The role of the ETR Program is to perform supporting research on the advanced battery systems under development by the USABC and EVABS Program, and to evaluate new systems with potentially superior performance, durability and/or cost characteristics. The specific goal of the ETR Program is to identify the most promising electrochemical technologies and transfer them to the USABC, the battery industry and/or the EVABS Program for further development and scaleup. This report summarizes the research, financial and management activities relevant to the ETR Program in FY 1991.

Ohio Advanced Energy Manufacturing Center

DOE Office of Scientific and Technical Information (OSTI.GOV)

Kimberly Gibson; Mark Norfolk

2012-07-30

The program goal of the Ohio Advanced Energy Manufacturing Center (OAEMC) is to support advanced energy manufacturing and to create responsive manufacturing clusters that will support the production of advanced energy and energy-efficient products to help ensure the nation's energy and environmental security. This goal cuts across a number of existing industry segments critical to the nation's future. Many of the advanced energy businesses are starting to make the transition from technology development to commercial production. Historically, this transition from laboratory prototypes through initial production for early adopters to full production for mass markets has taken several years. Developing andmore » implementing manufacturing technology to enable production at a price point the market will accept is a key step. Since these start-up operations are configured to advance the technology readiness of the core energy technology, they have neither the expertise nor the resources to address manufacturing readiness issues they encounter as the technology advances toward market entry. Given the economic realities of today's business environment, finding ways to accelerate this transition can make the difference between success and failure for a new product or business. The advanced energy industry touches a wide range of industry segments that are not accustomed to working together in complex supply chains to serve large markets such as automotive and construction. During its first three years, the Center has catalyzed the communication between companies and industry groups that serve the wide range of advanced energy markets. The Center has also found areas of common concern, and worked to help companies address these concerns on a segment or industry basis rather than having each company work to solve common problems individually. EWI worked with three industries through public-private partnerships to sew together disparate segments helping to promote overall industry health. To aid the overall advanced energy industry, EWI developed and launched an Ohio chapter of the non-profit Advanced Energy Economy. In this venture, Ohio joins with six other states including Colorado, Connecticut, Illinois, Maine, Massachusetts, New Hampshire, Rhode Island and Vermont to help promote technologies that deliver energy that is affordable, abundant and secure. In a more specific arena, EWI's advanced energy group collaborated with the EWI-run Nuclear Fabrication Consortium to promote the nuclear supply chain. Through this project EWI has helped bring the supply chain up to date for the upcoming period of construction, and assisted them in understanding the demands for the next generation of facilities now being designed. In a more targeted manner, EWI worked with 115 individual advanced energy companies that are attempting to bring new technology to market. First, these interactions helped EWI develop an awareness of issues common to companies in different advanced energy sectors. By identifying and addressing common issues, EWI helps companies bring technology to market sooner and at a lower cost. These visits also helped EWI develop a picture of industry capability. This helped EWI provide companies with contacts that can supply commercial solutions to their new product development challenges. By providing assistance in developing supply chain partnerships, EWI helped companies bring their technology to market faster and at a lower cost than they might have been able to do by themselves. Finally, at the most granular level EWI performed dedicated research and development on new manufacturing processes for advanced energy. During discussions with companies participating in advanced energy markets, several technology issues that cut across market segments were identified. To address some of these issues, three crosscutting technology development projects were initiated and completed with Center support. This included reversible welds for batteries and high temperature heat exchangers. It also included a novel advanced weld trainer that EWI has recently commercialized.« less

Performance and Weight Estimates for an Advanced Open Rotor Engine

NASA Technical Reports Server (NTRS)

Hendricks, Eric S.; Tong, Michael T.

2012-01-01

NASA s Environmentally Responsible Aviation Project and Subsonic Fixed Wing Project are focused on developing concepts and technologies which may enable dramatic reductions to the environmental impact of future generation subsonic aircraft. The open rotor concept (also historically referred to an unducted fan or advanced turboprop) may allow for the achievement of this objective by reducing engine fuel consumption. To evaluate the potential impact of open rotor engines, cycle modeling and engine weight estimation capabilities have been developed. The initial development of the cycle modeling capabilities in the Numerical Propulsion System Simulation (NPSS) tool was presented in a previous paper. Following that initial development, further advancements have been made to the cycle modeling and weight estimation capabilities for open rotor engines and are presented in this paper. The developed modeling capabilities are used to predict the performance of an advanced open rotor concept using modern counter-rotating propeller designs. Finally, performance and weight estimates for this engine are presented and compared to results from a previous NASA study of advanced geared and direct-drive turbofans.

Evolution paths for advanced automation

NASA Technical Reports Server (NTRS)

Healey, Kathleen J.

1990-01-01

As Space Station Freedom (SSF) evolves, increased automation and autonomy will be required to meet Space Station Freedom Program (SSFP) objectives. As a precursor to the use of advanced automation within the SSFP, especially if it is to be used on SSF (e.g., to automate the operation of the flight systems), the underlying technologies will need to be elevated to a high level of readiness to ensure safe and effective operations. Ground facilities supporting the development of these flight systems -- from research and development laboratories through formal hardware and software development environments -- will be responsible for achieving these levels of technology readiness. These facilities will need to evolve support the general evolution of the SSFP. This evolution will include support for increasing the use of advanced automation. The SSF Advanced Development Program has funded a study to define evolution paths for advanced automaton within the SSFP's ground-based facilities which will enable, promote, and accelerate the appropriate use of advanced automation on-board SSF. The current capability of the test beds and facilities, such as the Software Support Environment, with regard to advanced automation, has been assessed and their desired evolutionary capabilities have been defined. Plans and guidelines for achieving this necessary capability have been constructed. The approach taken has combined indepth interviews of test beds personnel at all SSF Work Package centers with awareness of relevant state-of-the-art technology and technology insertion methodologies. Key recommendations from the study include advocating a NASA-wide task force for advanced automation, and the creation of software prototype transition environments to facilitate the incorporation of advanced automation in the SSFP.

Advanced Ceramics for Use as Fuel Element Materials in Nuclear Thermal Propulsion Systems

NASA Technical Reports Server (NTRS)

Valentine, Peter G.; Allen, Lee R.; Shapiro, Alan P.

2012-01-01

With the recent start (October 2011) of the joint National Aeronautics and Space Administration (NASA) and Department of Energy (DOE) Advanced Exploration Systems (AES) Nuclear Cryogenic Propulsion Stage (NCPS) Program, there is renewed interest in developing advanced ceramics for use as fuel element materials in nuclear thermal propulsion (NTP) systems. Three classes of fuel element materials are being considered under the NCPS Program: (a) graphite composites - consisting of coated graphite elements containing uranium carbide (or mixed carbide), (b) cermets (ceramic/metallic composites) - consisting of refractory metal elements containing uranium oxide, and (c) advanced carbides consisting of ceramic elements fabricated from uranium carbide and one or more refractory metal carbides [1]. The current development effort aims to advance the technology originally developed and demonstrated under Project Rover (1955-1973) for the NERVA (Nuclear Engine for Rocket Vehicle Application) [2].

NASA IVHM Technology Experiment for X-vehicles (NITEX)

NASA Technical Reports Server (NTRS)

Sandra, Hayden; Bajwa, Anupa

2001-01-01

The purpose of the NASA IVHM Technology Experiment for X-vehicles (NITEX) is to advance the development of selected IVHM technologies in a flight environment and to demonstrate the potential for reusable launch vehicle ground processing savings. The technologies to be developed and demonstrated include system-level and detailed diagnostics for real-time fault detection and isolation, prognostics for fault prediction, automated maintenance planning based on diagnostic and prognostic results, and a microelectronics hardware platform. Complete flight The Evolution of Flexible Insulation as IVHM consists of advanced sensors, distributed data acquisition, data processing that includes model-based diagnostics, prognostics and vehicle autonomy for control or suggested action, and advanced data storage. Complete ground IVHM consists of evolved control room architectures, advanced applications including automated maintenance planning and automated ground support equipment. This experiment will advance the development of a subset of complete IVHM.

Research Opportunities in Advanced Aerospace Concepts

NASA Technical Reports Server (NTRS)

Jones, Gregory S.; Bangert, Linda S.; Garber, Donald P.; Huebner, Lawrence D.; McKinley, Robert E.; Sutton, Kenneth; Swanson, Roy C., Jr.; Weinstein, Leonard

2000-01-01

This report is a review of a team effort that focuses on advanced aerospace concepts of the 21st Century. The paper emphasis advanced technologies, rather than cataloging every unusual aircraft that has ever been attempted. To dispel the myth that "aerodynamics is a mature science" an extensive list of "What we cannot do, or do not know" was enumerated. A zeit geist, a feeling for the spirit of the times, was developed, based on existing research goals. Technological drivers and the constraints that might influence these technological developments in a future society were also examined. The present status of aeronautics, space exploration, and non-aerospace applications, both military and commercial, including enabling technologies are discussed. A discussion of non-technological issues affecting advanced concepts research is presented. The benefit of using the study of advanced vehicles as a tool to uncover new directions for technology development is often necessary. An appendix is provided containing examples of advanced vehicle configurations currently of interest.

Advance (Advanced Driver and Vehicle Advisory Navigation ConcEpt) Project: Insights and Achievements Compendium

DOT National Transportation Integrated Search

1996-10-23

ADVANCE (Advanced Driver and Vehicle Advisory Navigation ConcEpt) was a public/private partnership developed by the Federal Highway Administration (FHWA), the Illinois Department of Transportation (IDOT), the University of Illinois at Chicago and Nor...

The impact of emerging technologies on an advanced supersonic transport

NASA Technical Reports Server (NTRS)

Driver, C.; Maglieri, D. J.

1986-01-01

The effects of advances in propulsion systems, structure and materials, aerodynamics, and systems on the design and development of supersonic transport aircraft are analyzed. Efficient propulsion systems with variable-cycle engines provide the basis for improved propulsion systems; the propulsion efficienies of supersonic and subsonic engines are compared. Material advances consist of long-life damage-tolerant structures, advanced material development, aeroelastic tailoring, and low-cost fabrication. Improvements in the areas of aerodynamics and systems are examined. The environmental problems caused by engine emissions, airport noise, and sonic boom are studied. The characteristics of the aircraft designed to include these technical advances are described.

Evaluation of Therapeutics for Advanced-Stage Heart Failure and Other Severely-Debilitating or Life-Threatening Diseases.

PubMed

Prescott, J S; Andrews, P A; Baker, R W; Bogdanffy, M S; Fields, F O; Keller, D A; Lapadula, D M; Mahoney, N M; Paul, D E; Platz, S J; Reese, D M; Stoch, S A; DeGeorge, J J

2017-08-01

Severely-debilitating or life-threatening (SDLT) diseases include conditions in which life expectancy is short or quality of life is greatly diminished despite available therapies. As such, the medical context for SDLT diseases is comparable to advanced cancer and the benefit vs. risk assessment and development of SDLT disease therapeutics should be similar to that of advanced cancer therapeutics. A streamlined development approach would allow patients with SDLT conditions earlier access to therapeutics and increase the speed of progression through development. In addition, this will likely increase the SDLT disease therapeutic pipeline, directly benefiting patients and reducing the economic and societal burden of SDLT conditions. Using advanced-stage heart failure (HF) as an example that illustrates the concepts applicable to other SDLT indications, this article proposes a streamlined development paradigm for SDLT disease therapeutics and recommends development of aligned global regulatory guidance. © 2017 American Society for Clinical Pharmacology and Therapeutics.

Development of an Overview Display to Allow Advanced Outage Control Center Management to Quickly Evaluate Outage Status

DOE Office of Scientific and Technical Information (OSTI.GOV)

St Germain, Shawn Walter; Hugo, Jacques Victor

This report describes recent advances made in developing a framework for the design of visual outage information presentation, as well as an overview of the scientific principles that informed the development of the visualizations.

Advanced life support technology development for the Space Exploration Initiative

NASA Technical Reports Server (NTRS)

Evanich, Peggy L.; Voecks, Gerald E.; Seshan, P. K.

1990-01-01

An overview is presented of NASA's advanced life support technology development strategy for the Space Exploration Initiative. Three basic life support technology areas are discussed in detail: air revitalization, water reclamation, and solid waste management. It is projected that regenerative life support systems will become increasingly more complex as system closure is maximized. Advanced life support technology development will utilize three complementary elements, including the Research and Technology Program, the Regenerative Life Support Program, and the Technology Testbed Validations.

GIS Based Application of Advanced Traveler Information System in India

NASA Astrophysics Data System (ADS)

Kumar, P.; Singh, V.

2012-02-01

Developed countries like USA, Canada, Japan, UK, Australia and Germany have adopted advanced traveler information technologies expeditiously in comparison to developing countries. But, unlike developed countries, developing countries face considerable financial and framework constraints. Moreover local traffic, roadway, signalization, demographic, topological and social conditions in developing countries are quite different from those in developed countries. In this paper, a comprehensive framework comprising of system architecture, development methodology and salient features of a developed Advanced Traveler Information System (ATIS) for metropolitan cities in developing countries has been discussed. Development of proposed system is based on integration of two well known information technologies viz. Geographic Information Systems (GIS) and World Wide Web (WWW). Combination of these technologies can be utilized to develop an integrated ATIS that targets different types of travelers like private vehicle owners, transit users and casual outside visitors.

Advanced methods of structural and trajectory analysis for transport aircraft

NASA Technical Reports Server (NTRS)

Ardema, Mark D.

1995-01-01

This report summarizes the efforts in two areas: (1) development of advanced methods of structural weight estimation, and (2) development of advanced methods of trajectory optimization. The majority of the effort was spent in the structural weight area. A draft of 'Analytical Fuselage and Wing Weight Estimation of Transport Aircraft', resulting from this research, is included as an appendix.

Resin transfer molding for advanced composite primary wing and fuselage structures

NASA Technical Reports Server (NTRS)

Markus, Alan

1992-01-01

The stitching and resin transfer molding (RTM) processes developed at Douglas Aircraft Co. are successfully demonstrating significant cost reductions with good damage tolerance properties. These attributes were identified as critical to application of advanced composite materials to commercial aircraft primary structures. The RTM/stitching developments, cost analyses, and test results are discussed of the NASA Advanced Composites Technology program.

Advanced space propulsion concepts

NASA Technical Reports Server (NTRS)

Lapointe, Michael R.

1993-01-01

The NASA Lewis Research Center has been actively involved in the evaluation and development of advanced spacecraft propulsion. Recent program elements have included high energy density propellants, electrode less plasma thruster concepts, and low power laser propulsion technology. A robust advanced technology program is necessary to develop new, cost-effective methods of spacecraft propulsion, and to continue to push the boundaries of human knowledge and technology.

Rotorcraft technology at Boeing Vertol: Recent advances

NASA Technical Reports Server (NTRS)

Shaw, John; Dadone, Leo; Wiesner, Robert

1988-01-01

An overview is presented of key accomplishments in the rotorcraft development at Boeing Vertol. Projects of particular significance: high speed rotor development and the Model 360 Advanced Technology Helicopter. Areas addressed in the overview are: advanced rotors with reduced noise and vibration, 3-D aerodynamic modeling, flight control and avionics, active control, automated diagnostics and prognostics, composite structures, and drive systems.

A review of licensed viral vaccines, some of their safety concerns, and the advances in the development of investigational viral vaccines.

PubMed

Huang, David B; Wu, Jashin J; Tyring, Stephen K

2004-10-01

Viral vaccines could be considered among the most important medical achievements of the 20th century. They have prevented much suffering and saved many lives. Although some curative antiviral drugs exist, we desperately depend on efforts by academic, governmental and industrial scientists in the advancement of viral vaccines in the prevention and control of infectious diseases. In the next decade, we hope to see advancement in the development of current and investigational viral vaccines against childhood and adult infections. In this article, we will review the licensed viral vaccines, some of their safety concerns, and the advances in the development of investigational viral vaccines.

The management of advanced practitioner preparation: a work-based challenge.

PubMed

Livesley, Joan; Waters, Karen; Tarbuck, Paul

2009-07-01

This paper explores the collaborative development of a Master's level advanced practice programme in the context of the radical reform and remodelling of the UK's National Health Service. Some of the educational, managerial and practice challenges are discussed. Changes to education and training in response to key strategic reviews undertaken by the Greater Manchester Strategic Health Authority (North West of England) established a need to develop nurses and allied health care practitioners to advanced practitioner level. This paper considers how employers, commissioners and educationalists worked together to produce a Master's level programme to prepare nurses and other health care practitioners for sustainable advanced practice roles. Developing innovative and effective curricula to meet the needs of post graduate students from varied backgrounds preparing to practice in different contexts with different client groups is challenging. However, the development of individual learning pathways and work-based learning ensures that the student's work and intended advanced practice role remains at the centre of their learning. Analysis of each student's knowledge and skill deficits alongside an analysis of the organization's readiness to support them as qualified advanced practitioners (APs) is instrumental in ensuring that organizations are ready to support practitioners in new roles. Work-based learning and collaboration between students, employers and higher education institutions can be used to enable managers and students to unravel the network of factors which affect advanced practice in health and social care. Additionally, collaborative working can help to create opportunities to develop strategies that will facilitate change. Implications for nursing management Sustainable change concerned with the introduction of advanced practitioner roles present a real challenge for managers at a strategic and operational level. Commissioning flexible, collaborative and service-led educational programmes can assist in ensuring that change is sustainable and produce practitioners who are fit for practice, purpose and award.

Deriving consensus on the characteristics of advanced practice nursing: meta-summary of more than 2 decades of research.

PubMed

Hutchinson, Marie; East, Leah; Stasa, Helen; Jackson, Debra

2014-01-01

Over recent decades, there has been considerable research and debate about essential features of advanced nursing practice and differences among various categories of advanced practice nurses. This study aimed to derive an integrative description of the defining characteristics of advanced practice nursing through a meta-summary of the existing literature. A three-phase approach involved (a) systematic review of the literature to identify the specific activities characterized as advanced practice nursing, (b) qualitative meta-summary of practice characteristics extracted from manuscripts meeting inclusion criteria; and (c) statistical analysis of domains across advanced practice categories and country in which the study was completed. A descriptive framework was distilled using qualitative and quantitative results. Fifty manuscripts met inclusion criteria and were retained for analysis. Seven domains of advanced nursing practice were identified: (a) autonomous or nurse-led extended clinical practice; (b) improving systems of care; (c) developing the practice of others; (d) developing/delivering educational programs/activities; (e) nursing research/scholarship; (f) leadership external to the organization; and (g) administering programs, budgets, and personnel. Domains were similar across categories of advanced nursing practice; the domain of developing/delivering educational programs/activities was more common in Australia than in the United States or United Kingdom. Similarity at the domain level was sufficient to suggest that advanced practice role categories are less distinct than often argued. There is merit in adopting a more integrated and consistent interpretation of advanced practice nursing.

7 CFR 1781.7 - Loan and advance limitations and obligations incurred before loan closing.

Code of Federal Regulations, 2013 CFR

2013-01-01

... DEVELOPMENT (RCD) LOANS AND WATERSHED (WS) LOANS AND ADVANCES § 1781.7 Loan and advance limitations and... one or more watershed works of improvement in a single watershed project, whether made to one or more sponsoring organizations, will not exceed $10,000,000. (b) Watershed advance limitations. (1) A WS advance...

7 CFR 1781.7 - Loan and advance limitations and obligations incurred before loan closing.

Code of Federal Regulations, 2011 CFR

2011-01-01

... DEVELOPMENT (RCD) LOANS AND WATERSHED (WS) LOANS AND ADVANCES § 1781.7 Loan and advance limitations and... one or more watershed works of improvement in a single watershed project, whether made to one or more sponsoring organizations, will not exceed $10,000,000. (b) Watershed advance limitations. (1) A WS advance...

7 CFR 1781.7 - Loan and advance limitations and obligations incurred before loan closing.

Code of Federal Regulations, 2012 CFR

2012-01-01

... DEVELOPMENT (RCD) LOANS AND WATERSHED (WS) LOANS AND ADVANCES § 1781.7 Loan and advance limitations and... one or more watershed works of improvement in a single watershed project, whether made to one or more sponsoring organizations, will not exceed $10,000,000. (b) Watershed advance limitations. (1) A WS advance...

7 CFR 1781.7 - Loan and advance limitations and obligations incurred before loan closing.

Code of Federal Regulations, 2014 CFR

2014-01-01

... DEVELOPMENT (RCD) LOANS AND WATERSHED (WS) LOANS AND ADVANCES § 1781.7 Loan and advance limitations and... one or more watershed works of improvement in a single watershed project, whether made to one or more sponsoring organizations, will not exceed $10,000,000. (b) Watershed advance limitations. (1) A WS advance...

Advanced fuels campaign 2013 accomplishments

DOE Office of Scientific and Technical Information (OSTI.GOV)

Braase, Lori; Hamelin, Doug

The mission of the Advanced Fuels Campaign (AFC) is to perform Research, Development, and Demonstration (RD&D) activities for advanced fuel forms (including cladding) to enhance the performance and safety of the nation’s current and future reactors; enhance proliferation resistance of nuclear fuel; effectively utilize nuclear energy resources; and address the longer-term waste management challenges. This includes development of a state-of-the art Research and Development (R&D) infrastructure to support the use of “goal-oriented science-based approach.” In support of the Fuel Cycle Research and Development (FCRD) program, AFC is responsible for developing advanced fuels technologies to support the various fuel cycle optionsmore » defined in the Department of Energy (DOE) Nuclear Energy Research and Development Roadmap, Report to Congress, April 2010. Accomplishments made during fiscal year (FY) 2013 are highlighted in this report, which focuses on completed work and results. The process details leading up to the results are not included; however, the technical contact is provided for each section.« less

Structures and Materials Working Group report

NASA Technical Reports Server (NTRS)

Torczyner, Robert; Hanks, Brantley R.

1986-01-01

The appropriateness of the selection of four issues (advanced materials development, analysis/design methods, tests of large flexible structures, and structural concepts) was evaluated. A cross-check of the issues and their relationship to the technology drivers is presented. Although all of the issues addressed numerous drivers, the advanced materials development issue impacts six out of the seven drivers and is considered to be the most crucial. The advanced materials technology development and the advanced design/analysis methods development were determined to be enabling technologies with the testing issues and development of structural concepts considered to be of great importance, although not enabling technologies. In addition, and of more general interest and criticality, the need for a Government/Industry commitment which does not now exist, was established. This commitment would call for the establishment of the required infrastructure to facilitate the development of the capabilities highlighted through the availability of resources and testbed facilities, including a national testbed in space to be in place in ten years.

The presence of advanced lesions and associating risk factors for advanced cervical carcinoma in patients with atypical sguamous cells of undetermined significance.

PubMed

Sun, L L; Chen, W; Fan, Y Y; Wang, M L; Wang, L N

2015-01-01

To characterize histopathological status, high-risk human papillomavirus (hr-HPV) infection status, and associated risk factors in patients with atypical squamous cells of undetermined significance (ASCUS). Cervical biopsies obtained from 130 ASCUS patients were subjected to histopathological examination and hr-HPV testing. Associations between advanced lesions and hr-HPV load or age were analyzed, and the confounding factors for high-grade cervical lesions were identified. Cervical biopsies from ASCUS patients had a wide range of pathological states, ranging from normal to invasive cervical carcinoma. High-risk HPV infection was significantly associated with advanced cervical lesions in ASCUS patients; hr-HPV infection and the number of gestations were risk factors for developing advanced cervical disease. A significant portion of ASCUS patients harbor advanced cervical lesions. The number of gestations and hr-HPV infection can increase the risk of developing advanced cervical lesions in ASCUS patients.

2005 NASA Seal/Secondary Air System Workshop, Volume 1

NASA Technical Reports Server (NTRS)

Steinetz, Bruce M. (Editor); Hendricks, Robert C. (Editor)

2006-01-01

The 2005 NASA Seal/Secondary Air System workshop covered the following topics: (i) Overview of NASA s new Exploration Initiative program aimed at exploring the Moon, Mars, and beyond; (ii) Overview of the NASA-sponsored Propulsion 21 Project; (iii) Overview of NASA Glenn s seal project aimed at developing advanced seals for NASA s turbomachinery, space, and reentry vehicle needs; (iv) Reviews of NASA prime contractor, vendor, and university advanced sealing concepts including tip clearance control, test results, experimental facilities, and numerical predictions; and (v) Reviews of material development programs relevant to advanced seals development. Turbine engine studies have shown that reducing high-pressure turbine (HPT) blade tip clearances will reduce fuel burn, lower emissions, retain exhaust gas temperature margin, and increase range. Several organizations presented development efforts aimed at developing faster clearance control systems and associated technology to meet future engine needs. The workshop also covered several programs NASA is funding to develop technologies for the Exploration Initiative and advanced reusable space vehicle technologies. NASA plans on developing an advanced docking and berthing system that would permit any vehicle to dock to any on-orbit station or vehicle. Seal technical challenges (including space environments, temperature variation, and seal-on-seal operation) as well as plans to develop the necessary "androgynous" seal technologies were reviewed. Researchers also reviewed tests completed for the shuttle main landing gear door seals.

Advancing automation and robotics technology for the Space Station Freedom and for the US economy

NASA Technical Reports Server (NTRS)

1990-01-01

In April 1985, the NASA Advanced Technology Advisory Committee (ATAC) reported to Congress the results of its studies on advanced automation and robotics technology for use on Space Station Freedom. This material was documented in the initial report (NASA Technical Memorandum 87566). The progress made by Levels 1, 2, and 3 of the Office of Space Station in developing and applying advanced automation and robotics technology are described. Emphasis was placed upon the Space Station Freedom Program responses to specific recommendations made in ATAC Progress Report 9, the Flight Telerobotic Servicer, the Advanced Development Program, and the Data Management System. Assessments are presented for these and other areas as they apply to the advancement of automation and robotics technology for the Space Station Freedom.

Advanced Metering Installations – A Perspective from Federal Sites

DOE Office of Scientific and Technical Information (OSTI.GOV)

Earni, Shankar

2016-05-02

This report is intended to provide guidance to the United States Department of Energy (DOE) and other federal agencies to highlight some of the existing practices related to advanced building metering systems. This study identified some of the existing actions related to advanced meter data and proposes how advanced metered data can be employed to develop robust cost effective measurement and verification (M&V) strategies. This report proposes an integrated framework on how advanced meter data can be used to identify energy conservation opportunities and to develop proactive M&V strategies to ensure that the savings for energy projects are being realized.more » This information will help improve metering, feedback, and dashboard implementations for reducing energy use at DOE facilities, based on lessons learned from various advanced metering implementations.« less

TIMSS Advanced 2008 Assessment Frameworks

ERIC Educational Resources Information Center

Garden, Robert A.; Lie, Svein; Robitaille, David F.; Angell, Carl; Martin, Michael O.; Mullis, Ina V.S.; Foy, Pierre; Arora, Alka

2006-01-01

Developing the Trends in International Mathematics and Science Study (TIMSS) Advanced 2008 Assessment Frameworks was a collaborative venture involving mathematics and physics experts from around the world. The document contains two frameworks for implementing TIMSS Advanced 2008--one for advanced mathematics and one for physics. It also contains…

48 CFR 728.105-1 - Advance payment bonds.

Code of Federal Regulations, 2011 CFR

2011-10-01

....105-1 Section 728.105-1 Federal Acquisition Regulations System AGENCY FOR INTERNATIONAL DEVELOPMENT GENERAL CONTRACTING REQUIREMENTS BONDS AND INSURANCE Bonds 728.105-1 Advance payment bonds. (a) Generally, advance payment bonds will not be required in connection with USAID contracts containing an advance...

48 CFR 728.105-1 - Advance payment bonds.

Code of Federal Regulations, 2010 CFR

2010-10-01

....105-1 Section 728.105-1 Federal Acquisition Regulations System AGENCY FOR INTERNATIONAL DEVELOPMENT GENERAL CONTRACTING REQUIREMENTS BONDS AND INSURANCE Bonds 728.105-1 Advance payment bonds. (a) Generally, advance payment bonds will not be required in connection with USAID contracts containing an advance...

Solar sail science mission applications and advancement

NASA Astrophysics Data System (ADS)

Macdonald, Malcolm; McInnes, Colin

2011-12-01

Solar sailing has long been envisaged as an enabling or disruptive technology. The promise of open-ended missions allows consideration of radically new trajectories and the delivery of spacecraft to previously unreachable or unsustainable observation outposts. A mission catalogue is presented of an extensive range of potential solar sail applications, allowing identification of the key features of missions which are enabled, or significantly enhance, through solar sail propulsion. Through these considerations a solar sail application-pull technology development roadmap is established, using each mission as a technology stepping-stone to the next. Having identified and developed a solar sail application-pull technology development roadmap, this is incorporated into a new vision for solar sailing. The development of new technologies, especially for space applications, is high-risk. The advancement difficulty of low technology readiness level research is typically underestimated due to a lack of recognition of the advancement degree of difficulty scale. Recognising the currently low technology readiness level of traditional solar sailing concepts, along with their high advancement degree of difficulty and a lack of near-term applications a new vision for solar sailing is presented which increases the technology readiness level and reduces the advancement degree of difficulty of solar sailing. Just as the basic principles of solar sailing are not new, they have also been long proven and utilised in spacecraft as a low-risk, high-return limited-capability propulsion system. It is therefore proposed that this significant heritage be used to enable rapid, near-term solar sail future advancement through coupling currently mature solar sail, and other, technologies with current solar sail technology developments. As such the near-term technology readiness level of traditional solar sailing is increased, while simultaneously reducing the advancement degree of difficulty along the solar sail application-pull technology development roadmap.

Exploratory Technology Research Program for electrochemical energy storage

NASA Astrophysics Data System (ADS)

Kinoshita, Kim

1994-09-01

The U.S. Department of Energy's Office of Propulsion Systems provides support for an Electrochemical Energy Storage Program, that includes research and development (R&D) on advanced rechargeable batteries and fuel cells. A major goal of this program is to develop electrochemical power sources suitable for application in electric vehicles (EV's). The program centers on advanced systems that offer the potential for high performance and low life-cycle costs, both of which are necessary to permit significant penetration into commercial markets. The DOE Electrochemical Energy Storage Program is divided into two projects: the Electric Vehicle Advanced Battery Systems (EVABS) Development Program and the Exploratory Technology Research (ETR) Program. The EVABS Program management responsibility has been assigned to Sandia National Laboratories (SNL); Lawrence Berkeley Laboratory (LBL) is responsible for management of the ETR Program. The EVABS and ETR Programs include an integrated matrix of R&D efforts designed to advance progress on selected candidate electrochemical systems. The United States Advanced Battery Consortium (USABC), a tripartite undertaking between DOE, the U.S. automobile manufacturers and the Electric Power Research Institute (EPRI), was formed in 1991 to accelerate the development of advanced batteries for consumer EV's. The role of the FIR Program is to perform supporting research on the advanced battery systems under development by the USABC and EVABS Program, and to evaluate new systems with potentially superior performance, durability and/or cost characteristics. The specific goal of the ETR Program is to identify the most promising electrochemical technologies and transfer them to the USABC, the battery industry and/or the EVABS Program for further development and scale-up. This report summarizes the research, financial and management activities relevant to the ETR Program in CY 1993.

Exploratory Technology Research Program for electrochemical energy storage

NASA Astrophysics Data System (ADS)

Kinoshita, Kim

1994-09-01

The U.S. Department of Energy's Office of Propulsion Systems provides support for an Electrochemical Energy Storage Program, that includes research and development (R&D) on advanced rechargeable batteries and fuel cells. A major goal of this program is to develop electrochemical power sources suitable for application in electric vehicles (EV's). The program centers on advanced systems that offer the potential for high performance and low life-cycle costs, both of which are necessary to permit significant penetration into commercial markets. The DOE Electrochemical Energy Storage Program is divided into two projects: the Electric Vehicle Advanced Battery Systems (EVABS) Development Program and the Exploratory Technology Research (ETR) Program. The EVABS Program management responsibility has been assigned to Sandia National Laboratories (SNL); Lawrence Berkeley Laboratory (LBL) is responsible for management of the FIR Program. The EVABS and ETR Programs include an integrated matrix of R&D efforts designed to advance progress on selected candidate electrochemical systems. The United States Advanced Battery Consortium (USABC), a tripartite undertaking between DOE, the U.S. automobile manufacturers and the Electric Power Research Institute (EPRI), was formed in 1991 to accelerate the development of advanced batteries for consumer EV's. The role of the FIR Program is to perform supporting research on the advanced battery systems under development by the USABC and EVABS Program, and to evaluate new systems with potentially superior performance, durability and/or cost characteristics. The specific goal of the ETR Program is to identify the most promising electrochemical technologies and transfer them to the USABC, the battery industry and/or the EVABS Program for further development and scale-up. This report summarizes the research, financial and management activities relevant to the ETR Program in CY 1993.

Systems-Level Synthetic Biology for Advanced Biofuel Production

DOE Office of Scientific and Technical Information (OSTI.GOV)

Ruffing, Anne; Jensen, Travis J.; Strickland, Lucas Marshall

2015-03-01

Cyanobacteria have been shown to be capable of producing a variety of advanced biofuels; however, product yields remain well below those necessary for large scale production. New genetic tools and high throughput metabolic engineering techniques are needed to optimize cyanobacterial metabolisms for enhanced biofuel production. Towards this goal, this project advances the development of a multiple promoter replacement technique for systems-level optimization of gene expression in a model cyanobacterial host: Synechococcus sp. PCC 7002. To realize this multiple-target approach, key capabilities were developed, including a high throughput detection method for advanced biofuels, enhanced transformation efficiency, and genetic tools for Synechococcusmore » sp. PCC 7002. Moreover, several additional obstacles were identified for realization of this multiple promoter replacement technique. The techniques and tools developed in this project will help to enable future efforts in the advancement of cyanobacterial biofuels.« less

Acquisition of specialized testing equipment for advanced cement-based materials.

DOT National Transportation Integrated Search

2014-07-01

This equipment purchase will enabled the development, manufacturing, and implementation of advanced and sustainable materials for transportation infrastructure, with emphasis on concrete. The developments of green technologies that can lead to ...

E3 Success Story - Advancing Performance in Sustainability and Workforce Development

EPA Pesticide Factsheets

E3: North Carolina advances performance in sustainability and workforce development strategies for the state's manufacturers. The initiative helps communities and manufacturers address energy and sustainability challenges by leveraging expertise.

A score to estimate the likelihood of detecting advanced colorectal neoplasia at colonoscopy

PubMed Central

Kaminski, Michal F; Polkowski, Marcin; Kraszewska, Ewa; Rupinski, Maciej; Butruk, Eugeniusz; Regula, Jaroslaw

2014-01-01

Objective This study aimed to develop and validate a model to estimate the likelihood of detecting advanced colorectal neoplasia in Caucasian patients. Design We performed a cross-sectional analysis of database records for 40-year-old to 66-year-old patients who entered a national primary colonoscopy-based screening programme for colorectal cancer in 73 centres in Poland in the year 2007. We used multivariate logistic regression to investigate the associations between clinical variables and the presence of advanced neoplasia in a randomly selected test set, and confirmed the associations in a validation set. We used model coefficients to develop a risk score for detection of advanced colorectal neoplasia. Results Advanced colorectal neoplasia was detected in 2544 of the 35 918 included participants (7.1%). In the test set, a logistic-regression model showed that independent risk factors for advanced colorectal neoplasia were: age, sex, family history of colorectal cancer, cigarette smoking (p<0.001 for these four factors), and Body Mass Index (p=0.033). In the validation set, the model was well calibrated (ratio of expected to observed risk of advanced neoplasia: 1.00 (95% CI 0.95 to 1.06)) and had moderate discriminatory power (c-statistic 0.62). We developed a score that estimated the likelihood of detecting advanced neoplasia in the validation set, from 1.32% for patients scoring 0, to 19.12% for patients scoring 7–8. Conclusions Developed and internally validated score consisting of simple clinical factors successfully estimates the likelihood of detecting advanced colorectal neoplasia in asymptomatic Caucasian patients. Once externally validated, it may be useful for counselling or designing primary prevention studies. PMID:24385598

A score to estimate the likelihood of detecting advanced colorectal neoplasia at colonoscopy.

PubMed

Kaminski, Michal F; Polkowski, Marcin; Kraszewska, Ewa; Rupinski, Maciej; Butruk, Eugeniusz; Regula, Jaroslaw

2014-07-01

This study aimed to develop and validate a model to estimate the likelihood of detecting advanced colorectal neoplasia in Caucasian patients. We performed a cross-sectional analysis of database records for 40-year-old to 66-year-old patients who entered a national primary colonoscopy-based screening programme for colorectal cancer in 73 centres in Poland in the year 2007. We used multivariate logistic regression to investigate the associations between clinical variables and the presence of advanced neoplasia in a randomly selected test set, and confirmed the associations in a validation set. We used model coefficients to develop a risk score for detection of advanced colorectal neoplasia. Advanced colorectal neoplasia was detected in 2544 of the 35,918 included participants (7.1%). In the test set, a logistic-regression model showed that independent risk factors for advanced colorectal neoplasia were: age, sex, family history of colorectal cancer, cigarette smoking (p<0.001 for these four factors), and Body Mass Index (p=0.033). In the validation set, the model was well calibrated (ratio of expected to observed risk of advanced neoplasia: 1.00 (95% CI 0.95 to 1.06)) and had moderate discriminatory power (c-statistic 0.62). We developed a score that estimated the likelihood of detecting advanced neoplasia in the validation set, from 1.32% for patients scoring 0, to 19.12% for patients scoring 7-8. Developed and internally validated score consisting of simple clinical factors successfully estimates the likelihood of detecting advanced colorectal neoplasia in asymptomatic Caucasian patients. Once externally validated, it may be useful for counselling or designing primary prevention studies. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.

Development of advanced entry, descent, and landing technologies for future Mars Missions

NASA Technical Reports Server (NTRS)

Chu, Cheng-Chih (Chester)

2006-01-01

Future Mars missions may need the capability to land much closer to a desired target and/or advanced methods of detecting, avoiding, or tolerating landing hazards. Therefore, technologies that enable 'pinpoint landing' (within tens of meters to 1 km of a target site) will be crucial to meet future mission requirements. As part of NASA Research Announcement, NRA 03-OSS-01, NASA solicited proposals for technology development needs of missions to be launched to Mars during or after the 2009 launch opportunity. Six technology areas were identified as of high priority including advanced entry, descent, and landing (EDL) technologies. In May 2004, 11 proposals with PIs from universities, industries, and NASA centers, were awarded in the area of advanced EDL by NASA for further study and development. This paper presents an overview of these developing technologies.

[Advanced Composites Technology Initiatives

NASA Technical Reports Server (NTRS)

Julian, Mark R.

2002-01-01

This final report closes out the W02 NASA Grant #NCC5-646. The FY02 grant for advanced technology initiatives through the Advanced Composites Technology Institute in Bridgeport, WV, at the Robert C. Byrd Institute (RCBI) Bridgeport Manufacturing Technology Center, is complete; all funding has been expended. RCBI continued to expand access to technology; develop and implement a workforce-training curriculum; improve material development; and provide prototyping and demonstrations of new and advanced composites technologies for West Virginia composites firms. The FY 02 efforts supported workforce development, technical training and the HST development effort of a super-lightweight composite carrier prototype and expanded the existing technical capabilities of the growing aerospace industry across West Virginia to provide additional support for NASA missions. Additionally, the Composites Technology and Training Center was awarded IS0 9001 - 2000 certification and Cleanroom Class 1000 certification during this report period.

Study of the application of advanced technologies to long-range transport aircraft. Volume 2: Research and development requirements

NASA Technical Reports Server (NTRS)

Lange, R. H.; Sturgeon, R. F.; Adams, W. E.; Bradley, E. S.; Cahill, J. F.; Eudaily, R. R.; Hancock, J. P.; Moore, J. W.

1972-01-01

Investigations were conducted to evaluate the relative benefits attainable through the exploitation of advanced technologies and to identify future research and development efforts required to permit the application of selected technologies to transport aircraft entering commercial operation in 1985. Results show that technology advances, particularly in the areas of composite materials, supercritical aerodynamics, and active control systems, will permit the development of long-range, high-payload commercial transports operating at high-subsonic speeds with direct operating costs lower than those of current aircraft. These advanced transports also achieve lower noise levels and lower engine pollutant emissions than current transports. Research and development efforts, including analytical investigations, laboratory test programs, and flight test programs, are required in essentially all technology areas to achieve the potential technology benefits.

Standardization Efforts for Mechanical Testing and Design of Advanced Ceramic Materials and Components

NASA Technical Reports Server (NTRS)

Salem, Jonathan A.; Jenkins, Michael G.

2003-01-01

Advanced aerospace systems occasionally require the use of very brittle materials such as sapphire and ultra-high temperature ceramics. Although great progress has been made in the development of methods and standards for machining, testing and design of component from these materials, additional development and dissemination of standard practices is needed. ASTM Committee C28 on Advanced Ceramics and ISO TC 206 have taken a lead role in the standardization of testing for ceramics, and recent efforts and needs in standards development by Committee C28 on Advanced Ceramics will be summarized. In some cases, the engineers, etc. involved are unaware of the latest developments, and traditional approaches applicable to other material systems are applied. Two examples of flight hardware failures that might have been prevented via education and standardization will be presented.

Molecular pathogenesis of hepatocellular carcinoma and impact of therapeutic advances

PubMed Central

Dhanasekaran, Renumathy; Bandoh, Salome; Roberts, Lewis R.

2016-01-01

Hepatocellular carcinoma (HCC) is a leading cause of cancer mortality and has an increasing incidence worldwide. HCC can be induced by multiple etiologies, is influenced by many risk factors, and has a complex pathogenesis. Furthermore, HCCs exhibit substantial heterogeneity, which compounds the difficulties in developing effective therapies against this highly lethal cancer. With advances in cancer biology and molecular and genetic profiling, a number of different mechanisms involved in the development and progression of HCC have been identified. Despite the advances in this area, the molecular pathogenesis of hepatocellular carcinoma is still not completely understood. This review aims to elaborate our current understanding of the most relevant genetic alterations and molecular pathways involved in the development and progression of HCC, and anticipate the potential impact of future advances on therapeutic drug development. PMID:27239288

Ceramic Technology for Advanced Heat Engines Project

DOE Office of Scientific and Technical Information (OSTI.GOV)

Not Available

1989-08-01

The Ceramic Technology for Advanced Heat Engines Project was developed by the Department of Energy's Office of Transportation Systems (OTS) in Conservation and Renewable Energy. This project, part of the OTS's Advanced Materials Development Program, was developed to meet the ceramic technology requirements of the OTS's automotive technology programs. Significant accomplishments in fabricating ceramic components for the Department of Energy (DOE), National Aeronautics and Space Administration (NASA), and Department of Defense (DoD) advanced heat engine programs have provided evidence that the operation of ceramic parts in high-temperature engine environments is feasible. However, these programs have also demonstrated that additional researchmore » is needed in materials and processing development, design methodology, and data base and life prediction before industry will have a sufficient technology base from which to produce reliable cost-effective ceramic engine components commercially.« less

Review of the cultivation program within the national alliance for advanced biofuels and bioproducts

USDA-ARS?s Scientific Manuscript database

The cultivation efforts within the National Alliance for Advanced Biofuels and Bioproducts (NAABB) were developed to provide four major goals for the consortium, which included biomass production for downstream experimentation, development of new assessment tools for cultivation, development of new ...

Providing Retraining and Advancement Training for Primary/Elementary School Teachers at the State Level in Great Britain and the USA

ERIC Educational Resources Information Center

Chychuk, Antonina

2017-01-01

In Great Britain and the USA the normative basis of primary/elementary school teachers' qualification advancement is being actively developed, i. e. this issue is considered at the state level. For a long time the development of retraining and advancement training system for primary/elementary school teachers has been grounded on conceptual…

Performance of Children and Adolescents with Asperger Syndrome or High-Functioning Autism on Advanced Theory of Mind Tasks

ERIC Educational Resources Information Center

Kaland, Nils; Callesen, Kirsten; Moller-Nielsen, Annette; Mortensen, Erik Lykke; Smith, Lars

2008-01-01

Although a number of advanced theory of mind tasks have been developed, there is a dearth of information on whether performances on different tasks are associated. The present study examined the performance of 21 children and adolescents with diagnoses of Asperger syndrome (AS) and 20 typically developing controls on three advanced theory of mind…

Conceptual design study for an advanced cab and visual system, volume 2

NASA Technical Reports Server (NTRS)

Rue, R. J.; Cyrus, M. L.; Garnett, T. A.; Nachbor, J. W.; Seery, J. A.; Starr, R. L.

1980-01-01

The performance, design, construction and testing requirements are defined for developing an advanced cab and visual system. The rotorcraft system integration simulator is composed of the advanced cab and visual system and the rotorcraft system motion generator, and is part of an existing simulation facility. User's applications for the simulator include rotorcraft design development, product improvement, threat assessment, and accident investigation.

It's Our Move Now: A Community Action Guide to the UN Nairobi Forward-Looking Strategies for the Advancement of Women.

ERIC Educational Resources Information Center

Sandler, Joanne

This community action guide was developed to implement the strategies for the advancement of women developed at the United Nations world conference in Nairobi that ended the Decade for Women in 1985. The guide is intended to: (1) increase understanding and awareness of the existence of the Nairobi Forward-Looking Strategies for the Advancement of…

Mediating between Discourse Worlds: Developing the Symbolic Competence of Advanced-Level Bilingual Learners of Japanese through Translation

ERIC Educational Resources Information Center

Koshiba, Kenta

2017-01-01

This paper explores the role that translation may play in developing the symbolic competence of advanced-level bilingual learners. To this end, it examines how a group of bilingual learners engaged with a translation task that was assigned to them as part of their study in an advanced-level Japanese language class at an Australian university.…

Advanced Algal Systems Fact Sheet

DOE Office of Scientific and Technical Information (OSTI.GOV)

None

2016-06-01

Research and development (R&D) on advanced algal biofuels and bioproducts presents an opportunity to sustainably expand biomass resource potential in the United States. The Bioenergy Technologies Office’s (BETO’s) Advanced Algal Systems Program is carrying out a long-term, applied R&D strategy to lower the costs of algal biofuel production by working with partners to develop revolutionary technologies and conduct crosscutting analyses to better understand the potential

Advanced information processing system for advanced launch system: Avionics architecture synthesis

NASA Technical Reports Server (NTRS)

Lala, Jaynarayan H.; Harper, Richard E.; Jaskowiak, Kenneth R.; Rosch, Gene; Alger, Linda S.; Schor, Andrei L.

1991-01-01

The Advanced Information Processing System (AIPS) is a fault-tolerant distributed computer system architecture that was developed to meet the real time computational needs of advanced aerospace vehicles. One such vehicle is the Advanced Launch System (ALS) being developed jointly by NASA and the Department of Defense to launch heavy payloads into low earth orbit at one tenth the cost (per pound of payload) of the current launch vehicles. An avionics architecture that utilizes the AIPS hardware and software building blocks was synthesized for ALS. The AIPS for ALS architecture synthesis process starting with the ALS mission requirements and ending with an analysis of the candidate ALS avionics architecture is described.

Nuclear Thermal Propulsion for Advanced Space Exploration

NASA Technical Reports Server (NTRS)

Houts, M. G.; Borowski, S. K.; George, J. A.; Kim, T.; Emrich, W. J.; Hickman, R. R.; Broadway, J. W.; Gerrish, H. P.; Adams, R. B.

2012-01-01

The fundamental capability of Nuclear Thermal Propulsion (NTP) is game changing for space exploration. A first generation Nuclear Cryogenic Propulsion Stage (NCPS) based on NTP could provide high thrust at a specific impulse above 900 s, roughly double that of state of the art chemical engines. Characteristics of fission and NTP indicate that useful first generation systems will provide a foundation for future systems with extremely high performance. The role of the NCPS in the development of advanced nuclear propulsion systems could be analogous to the role of the DC-3 in the development of advanced aviation. Progress made under the NCPS project could help enable both advanced NTP and advanced Nuclear Electric Propulsion (NEP).

Energy conversion and storage program

NASA Astrophysics Data System (ADS)

Cairns, E. J.

1992-03-01

The Energy Conversion and Storage Program applies chemistry and materials science principles to solve problems in: (1) production of new synthetic fuels; (2) development of high-performance rechargeable batteries and fuel cells; (3) development of advanced thermochemical processes for energy conversion; (4) characterization of complex chemical processes; and (5) application of novel materials for energy conversion and transmission. Projects focus on transport-process principles, chemical kinetics, thermodynamics, separation processes, organic and physical chemistry, novel materials, and advanced methods of analysis. Electrochemistry research aims to develop advanced power systems for electric vehicle and stationary energy storage applications. Topics include identification of new electrochemical couples for advanced rechargeable batteries, improvements in battery and fuel-cell materials, and the establishment of engineering principles applicable to electrochemical energy storage and conversion. Chemical Applications research includes topics such as separations, catalysis, fuels, and chemical analyses. Included in this program area are projects to develop improved, energy-efficient methods for processing waste streams from synfuel plants and coal gasifiers. Other research projects seek to identify and characterize the constituents of liquid fuel-system streams and to devise energy-efficient means for their separation. Materials Applications research includes the evaluation of the properties of advanced materials, as well as the development of novel preparation techniques. For example, the use of advanced techniques, such as sputtering and laser ablation, are being used to produce high-temperature superconducting films.

NASA's Advanced Radioisotope Power Conversion Technology Development Status

NASA Technical Reports Server (NTRS)

Anderson, David J.; Sankovic, John; Wilt, David; Abelson, Robert D.; Fleurial, Jean-Pierre

2007-01-01

NASA's Advanced Radioisotope Power Systems (ARPS) project is developing the next generation of radioisotope power conversion technologies that will enable future missions that have requirements that cannot be met by either photovoltaic systems or by current radioisotope power systems (RPSs). Requirements of advanced RPSs include high efficiency and high specific power (watts/kilogram) in order to meet future mission requirements with less radioisotope fuel and lower mass so that these systems can meet requirements for a variety of future space applications, including continual operation surface missions, outer-planetary missions, and solar probe. These advances would enable a factor of 2 to 4 decrease in the amount of fuel required to generate electrical power. Advanced RPS development goals also include long-life, reliability, and scalability. This paper provides an update on the contractual efforts under the Radioisotope Power Conversion Technology (RPCT) NASA Research Announcement (NRA) for research and development of Stirling, thermoelectric, and thermophotovoltaic power conversion technologies. The paper summarizes the current RPCT NRA efforts with a brief description of the effort, a status and/or summary of the contractor's key accomplishments, a discussion of upcoming plans, and a discussion of relevant system-level benefits and implications. The paper also provides a general discussion of the benefits from the development of these advanced power conversion technologies and the eventual payoffs to future missions (discussing system benefits due to overall improvements in efficiency, specific power, etc.).

Lessons Learned from the Advanced Developing Countries. GENESYS Special Studies No. 3.

ERIC Educational Resources Information Center

Joekes, Susan P.

This paper examines the experience of development in the advanced developing countries in Asia from a gender perspective and draws some lessons for women in development policy in middle income countries in the Asian and Near East regions. The nature of the paper is exploratory, asking many questions on which further research and information are…

DOE Office of Scientific and Technical Information (OSTI.GOV)

J. Carmack; L. Braase; F. Goldner

The mission of the Advanced Fuels Campaign (AFC) is to perform Research, Development, and Demonstration (RD&D) activities for advanced fuel forms (including cladding) to enhance the performance and safety of the nation’s current and future reactors, enhance proliferation resistance of nuclear fuel, effectively utilize nuclear energy resources, and address the longer-term waste management challenges. This includes development of a state of the art Research and Development (R&D) infrastructure to support the use of a “goal oriented science based approach.” AFC uses a “goal oriented, science based approach” aimed at a fundamental understanding of fuel and cladding fabrication methods and performancemore » under irradiation, enabling the pursuit of multiple fuel forms for future fuel cycle options. This approach includes fundamental experiments, theory, and advanced modeling and simulation. One of the most challenging aspects of AFC is the management, integration, and coordination of major R&D activities across multiple organizations. AFC interfaces and collaborates with Fuel Cycle Technologies (FCT) campaigns, universities, industry, various DOE programs and laboratories, federal agencies (e.g., Nuclear Regulatory Commission [NRC]), and international organizations. Key challenges are the development of fuel technologies to enable major increases in fuel performance (safety, reliability, power and burnup) beyond current technologies, and development of characterization methods and predictive fuel performance models to enable more efficient development and licensing of advanced fuels. Challenged with the research and development of fuels for two different reactor technology platforms, AFC targeted transmutation fuel development and focused ceramic fuel development for Advanced LWR Fuels.« less

Advances in Educational and Psychological Testing: Theory and Applications. Evaluation in Education and Human Services Series.

ERIC Educational Resources Information Center

Hambleton, Ronald K., Ed.; Zaal, Jac N., Ed.

The 14 chapters of this book focus on the technical advances, advances in applied settings, and emerging topics in the testing field. Part 1 discusses methodological advances, Part 2 considers developments in applied settings, and Part 3 reviews emerging topics in the field of testing. Part 1 papers include: (1) "Advances in…

75 FR 7990 - Use of Community Development Loans by Community Financial Institutions To Secure Advances...

Federal Register 2010, 2011, 2012, 2013, 2014

2010-02-23

... activities and to allow Banks to make long-term advances to CFI members for purposes of financing community... activities as eligible collateral for advances, to provide that CFI members may use long term advances to... provided that a Bank could make a long-term advance to a member only for the purposes of providing funds to...

Data management system advanced development

NASA Technical Reports Server (NTRS)

Douglas, Katherine; Humphries, Terry

1990-01-01

The Data Management System (DMS) Advanced Development task provides for the development of concepts, new tools, DMS services, and for the testing of the Space Station DMS hardware and software. It also provides for the development of techniques capable of determining the effects of system changes/enhancements, additions of new technology, and/or hardware and software growth on system performance. This paper will address the built-in characteristics which will support network monitoring requirements in the design of the evolving DMS network implementation, functional and performance requirements for a real-time, multiprogramming, multiprocessor operating system, and the possible use of advanced development techniques such as expert systems and artificial intelligence tools in the DMS design.

Advanced Seal Development for Large Industrial Gas Turbines

NASA Technical Reports Server (NTRS)

Chupp, Raymond E.

2006-01-01

Efforts are in progress to develop advanced sealing for large utility industrial gas turbine engines (combustion turbines). Such seals have been under developed for some time for aero gas turbines. It is desired to transition this technology to combustion turbines. Brush seals, film riding face and circumferential seals, and other dynamic and static sealing approaches are being incorporated into gas turbines for aero applications by several engine manufacturers. These seals replace labyrinth or other seals with significantly reduced leakage rates. For utility industrial gas turbines, leakage reduction with advanced sealing can be even greater with the enormous size of the components. Challenges to transitioning technology include: extremely long operating times between overhauls; infrequent but large radial and axial excursions; difficulty in coating larger components; and maintenance, installation, and durability requirements. Advanced sealing is part of the Advanced Turbine Systems (ATS) engine development being done under a cooperative agreement between Westinghouse and the US Department of Energy, Office of Fossil Energy. Seal development focuses on various types of seals in the 501ATS engine both at dynamic and static locations. Each development includes rig testing of candidate designs and subsequent engine validation testing of prototype seals. This presentation gives an update of the ongoing ATS sealing efforts with special emphasis on brush seals.

Current CFD Practices in Launch Vehicle Applications

NASA Technical Reports Server (NTRS)

Kwak, Dochan; Kiris, Cetin

2012-01-01

The quest for sustained space exploration will require the development of advanced launch vehicles, and efficient and reliable operating systems. Development of launch vehicles via test-fail-fix approach is very expensive and time consuming. For decision making, modeling and simulation (M&S) has played increasingly important roles in many aspects of launch vehicle development. It is therefore essential to develop and maintain most advanced M&S capability. More specifically computational fluid dynamics (CFD) has been providing critical data for developing launch vehicles complementing expensive testing. During the past three decades CFD capability has increased remarkably along with advances in computer hardware and computing technology. However, most of the fundamental CFD capability in launch vehicle applications is derived from the past advances. Specific gaps in the solution procedures are being filled primarily through "piggy backed" efforts.on various projects while solving today's problems. Therefore, some of the advanced capabilities are not readily available for various new tasks, and mission-support problems are often analyzed using ad hoc approaches. The current report is intended to present our view on state-of-the-art (SOA) in CFD and its shortcomings in support of space transport vehicle development. Best practices in solving current issues will be discussed using examples from ascending launch vehicles. Some of the pacing will be discussed in conjunction with these examples.

Associations Between Gross Motor and Communicative Development in At-Risk Infants

PubMed Central

LeBarton, Eve Sauer; Iverson, Jana M.

2016-01-01

Infants' advances in locomotion relate to advances in communicative development. However, little is known about these relations in infants at risk for delays in these domains and whether they may extend to earlier achievements in gross motor development in infancy. We examined whether advances in sitting and prone locomotion are related to communicative development in infants who have an older sibling with autism spectrum disorder (ASD) and are at risk for motor and communication delays (heightened-risk; HR). We conducted a longitudinal study with 37 HR infants who did not receive an ASD diagnosis at 36 months. Infants were observed monthly between the ages of 5 and 14 months. We assessed gross motor development using the Alberta Infant Motor Scales (AIMS) and recorded ages of onset of verbal and nonverbal communicative behaviors. Results indicated increased presence of early gross motor delay from 5 to 10 months. In addition, there were positive relations between sitting and gesture and babble onset and between prone development and gesture onset. Thus, links between gross motor development and communication extend to at-risk development and provide a starting point for future research on potential cascading consequences of motor advances on communication development. PMID:27314943

Advanced Materials and Component Development for Lithium-Ion Cells for NASA Missions

NASA Technical Reports Server (NTRS)

Reid, Concha M.

2012-01-01

Human missions to Near Earth Objects, such as asteroids, planets, moons, liberation points, and orbiting structures, will require safe, high specific energy, high energy density batteries to provide new or extended capabilities than are possible with today s state-of-the-art aerospace batteries. The Enabling Technology Development and Demonstration Program, High Efficiency Space Power Systems Project battery development effort at the National Aeronautics and Space Administration (NASA) is continuing advanced lithium-ion cell development efforts begun under the Exploration Technology Development Program Energy Storage Project. Advanced, high-performing materials are required to provide improved performance at the component-level that contributes to performance at the integrated cell level in order to meet the performance goals for NASA s High Energy and Ultra High Energy cells. NASA s overall approach to advanced cell development and interim progress on materials performance for the High Energy and Ultra High Energy cells after approximately 1 year of development has been summarized in a previous paper. This paper will provide an update on these materials through the completion of 2 years of development. The progress of materials development, remaining challenges, and an outlook for the future of these materials in near term cell products will be discussed.

Cycloconverter on the all-electric airplane

NASA Astrophysics Data System (ADS)

Webb, R. C.

1983-06-01

This paper discusses the application of a cycloconverter to a permanent magnet generator. Recent developments, advanced concepts, and advanced technology systems will be covered. Recent developments include permanent magnets, permanent magnet motors and generators, and power semiconductors.

Development of Advanced Seals for Industrial Turbine Applications

NASA Astrophysics Data System (ADS)

Chupp, Raymond E.; Aksit, Mahmut F.; Ghasripoor, Farshad; Turnquist, Norman A.; Dinc, Saim; Mortzheim, Jason; Demiroglu, Mehmet

2002-10-01

A critical area being addressed to improve industrial turbine performance is reducing the parasitic leakage flows through the various static and dynamic seals. Implementation of advanced seals into General Electric (GE) industrial turbines has progressed well over the last few years with significant operating performance gains achieved. Advanced static seals have been placed in gas turbine hot gas-path junctions and steam turbine packing ring segment end gaps. Brush seals have significantly decreased labyrinth seal leakages in gas turbine compressors and turbine interstages, steam turbine interstage and end packings, industrial compressor shaft seals, and generator seals. Abradable seals are being developed for blade-tip locations in various turbine locations. This presentation summarizes the status of advanced seal development for industrial turbines at GE.

Benefits assessment of advanced public transportation systems (APTS)

DOT National Transportation Integrated Search

1996-07-01

This report documents work performed under FTA's Advance Public Transportation Systems (APTS) Program, a program structured to undertake research and development of innovative applications of advanced navigation, information, and communication techno...

Teaching of Psychology in Countries with Advanced versus Developing Economies

ERIC Educational Resources Information Center

Pinquart, Martin; Bernardo, Allan B. I.

2014-01-01

We compare structures and contents of psychology programmes from countries with developing and advanced economies. Respondents from 49 countries completed a survey of the International Union of Psychological Science on psychology education and training. In general, there are more similarities than differences between countries with developing and…

Advancing Empirical Scholarship to Further Develop Evaluation Theory and Practice

ERIC Educational Resources Information Center

Christie, Christina A.

2011-01-01

Good theory development is grounded in empirical inquiry. In the context of educational evaluation, the development of empirically grounded theory has important benefits for the field and the practitioner. In particular, a shift to empirically derived theory will assist in advancing more systematic and contextually relevant evaluation practice, as…

Building Software Development Capacity to Advance the State of Educational Technology

ERIC Educational Resources Information Center

Luterbach, Kenneth J.

2013-01-01

Educational technologists may advance the state of the field by increasing capacity to develop software tools and instructional applications. Presently, few academic programs in educational technology require even a single computer programming course. Further, the educational technologists who develop software generally work independently or in…

An evolving-requirements technology assessment process for advanced propulsion concepts

NASA Astrophysics Data System (ADS)

McClure, Erin Kathleen

The following dissertation investigates the development of a methodology suitable for the evaluation of advanced propulsion concepts. At early stages of development, both the future performance of these concepts and their requirements are highly uncertain, making it difficult to forecast their future value. Developing advanced propulsion concepts requires a huge investment of resources. The methodology was developed to enhance the decision-makers understanding of the concepts, so that they could mitigate the risks associated with developing such concepts. A systematic methodology to identify potential advanced propulsion concepts and assess their robustness is necessary to reduce the risk of developing advanced propulsion concepts. Existing advanced design methodologies have evaluated the robustness of technologies or concepts to variations in requirements, but they are not suitable to evaluate a large number of dissimilar concepts. Variations in requirements have been shown to impact the development of advanced propulsion concepts, and any method designed to evaluate these concepts must incorporate the possible variations of the requirements into the assessment. In order to do so, a methodology was formulated to be capable of accounting for two aspects of the problem. First, it had to systemically identify a probabilistic distribution for the future requirements. Such a distribution would allow decision-makers to quantify the uncertainty introduced by variations in requirements. Second, the methodology must be able to assess the robustness of the propulsion concepts as a function of that distribution. This dissertation describes in depth these enabling elements and proceeds to synthesize them into a new method, the Evolving Requirements Technology Assessment (ERTA). As a proof of concept, the ERTA method was used to evaluate and compare advanced propulsion systems that will be capable of powering a hurricane tracking, High Altitude, Long Endurance (HALE) unmanned aerial vehicle (UAV). The use of the ERTA methodology to assess HALE UAV propulsion concepts demonstrated that potential variations in requirements do significantly impact the assessment and selection of propulsion concepts. The proof of concept also demonstrated that traditional forecasting techniques, such as the cross impact analysis, could be used to forecast the requirements for advanced propulsion concepts probabilistically. "Fitness", a measure of relative goodness, was used to evaluate the concepts. Finally, stochastic optimizations were used to evaluate the propulsion concepts across the range of requirement sets that were considered.

Software development to support sensor control of robot arc welding

NASA Technical Reports Server (NTRS)

Silas, F. R., Jr.

1986-01-01

The development of software for a Digital Equipment Corporation MINC-23 Laboratory Computer to provide functions of a workcell host computer for Space Shuttle Main Engine (SSME) robotic welding is documented. Routines were written to transfer robot programs between the MINC and an Advanced Robotic Cyro 750 welding robot. Other routines provide advanced program editing features while additional software allows communicatin with a remote computer aided design system. Access to special robot functions were provided to allow advanced control of weld seam tracking and process control for future development programs.

In-Space Propulsion: Connectivity to In-Space Fabrication and Repair

NASA Technical Reports Server (NTRS)

Johnson, L.; Harris, D.; Trausch, A.; Matloff, G. L.; Taylor, T.; Cutting, K.

2005-01-01

The connectivity between new in-space propulsion technologies and the ultimate development of an in-space fabrication and repair infrastructure are described in this Technical Memorandum. A number of advanced in-space propulsion technologies are being developed by NASA, many of which are directly relevant to the establishment of such an in-space infrastructure. These include aerocapture, advanced solar-electric propulsion, solar-thermal propulsion, advanced chemical propulsion, tethers, and solar photon sails. Other, further-term technologies have also been studied to assess their utility to the development of such an infrastructure.

An overview of the NASA Advanced Propulsion Concepts program

NASA Technical Reports Server (NTRS)

Curran, Francis M.; Bennett, Gary L.; Frisbee, Robert H.; Sercel, Joel C.; Lapointe, Michael R.

1992-01-01

NASA Advanced Propulsion Concepts (APC) program for the development of long-term space propulsion system schemes is managed by both NASA-Lewis and the JPL and is tasked with the identification and conceptual development of high-risk/high-payoff configurations. Both theoretical and experimental investigations have been undertaken in technology areas deemed essential to the implementation of candidate concepts. These APC candidates encompass very high energy density chemical propulsion systems, advanced electric propulsion systems, and an antiproton-catalyzed nuclear propulsion concept. A development status evaluation is presented for these systems.

Advanced Education and Technology Business Plan, 2010-13. Highlights

ERIC Educational Resources Information Center

Alberta Advanced Education and Technology, 2010

2010-01-01

The Ministry of Advanced Education and Technology envisions Alberta's prosperity through innovation and lifelong learning. Advanced Education and Technology's mission is to lead the development of a knowledge-driven future through a dynamic and integrated advanced learning and innovation system. This paper presents the highlights of the business…

Literary Discussions and Advanced Speaking Functions: Researching the (Dis)Connection

ERIC Educational Resources Information Center

Donato, Richard; Brooks, Frank B.

2004-01-01

This study investigated the discourse of class discussion in the advanced undergraduate Spanish literature course. Motivating this study was the need for research to determine how discussion in advanced undergraduate literature courses provides discourse opportunities to students to develop advanced language functions, as defined in the ACTFL…

The Career Advancement Portfolio. Advancement for Low-Wage Workers

ERIC Educational Resources Information Center

Jobs for the Future, 2006

2006-01-01

Jobs for the Future created the "Career Advancement Portfolio" as central to its commitment to developing, implementing, and advocating for models, strategies, and policies that enable adults to advance toward economic self-sufficiency for themselves and their families. The "Portfolio" brings together the most innovative workforce development…

44 CFR 208.45 - Advance of funds.

Code of Federal Regulations, 2010 CFR

2010-10-01

... Agreements § 208.45 Advance of funds. At the time of Activation of a Task Force, the Task Force will develop... advance of funds will not include any costs for equipment purchase. ... 44 Emergency Management and Assistance 1 2010-10-01 2010-10-01 false Advance of funds. 208.45...

Space Technology Mission Directorate Game Changing Development Program FY2015 Annual Program Review: Advanced Manufacturing Technology

NASA Technical Reports Server (NTRS)

Vickers, John; Fikes, John

2015-01-01

The Advance Manufacturing Technology (AMT) Project supports multiple activities within the Administration's National Manufacturing Initiative. A key component of the Initiative is the Advanced Manufacturing National Program Office (AMNPO), which includes participation from all federal agencies involved in U.S. manufacturing. In support of the AMNPO the AMT Project supports building and Growing the National Network for Manufacturing Innovation through a public-private partnership designed to help the industrial community accelerate manufacturing innovation. Integration with other projects/programs and partnerships: STMD (Space Technology Mission Directorate), HEOMD, other Centers; Industry, Academia; OGA's (e.g., DOD, DOE, DOC, USDA, NASA, NSF); Office of Science and Technology Policy, NIST Advanced Manufacturing Program Office; Generate insight within NASA and cross-agency for technology development priorities and investments. Technology Infusion Plan: PC; Potential customer infusion (TDM, HEOMD, SMD, OGA, Industry); Leverage; Collaborate with other Agencies, Industry and Academia; NASA roadmap. Initiatives include: Advanced Near Net Shape Technology Integrally Stiffened Cylinder Process Development (launch vehicles, sounding rockets); Materials Genome; Low Cost Upper Stage-Class Propulsion; Additive Construction with Mobile Emplacement (ACME); National Center for Advanced Manufacturing.

Systems of career influences: a conceptual model for evaluating the professional development of women in academic medicine.

PubMed

Magrane, Diane; Helitzer, Deborah; Morahan, Page; Chang, Shine; Gleason, Katharine; Cardinali, Gina; Wu, Chih-Chieh

2012-12-01

Surprisingly little research is available to explain the well-documented organizational and societal influences on persistent inequities in advancement of women faculty. The Systems of Career Influences Model is a framework for exploring factors influencing women's progression to advanced academic rank, executive positions, and informal leadership roles in academic medicine. The model situates faculty as agents within a complex adaptive system consisting of a trajectory of career advancement with opportunities for formal professional development programming; a dynamic system of influences of organizational policies, practices, and culture; and a dynamic system of individual choices and decisions. These systems of influence may promote or inhibit career advancement. Within this system, women weigh competing influences to make career advancement decisions, and leaders of academic health centers prioritize limited resources to support the school's mission. The Systems of Career Influences Model proved useful to identify key research questions. We used the model to probe how research in academic career development might be applied to content and methods of formal professional development programs. We generated a series of questions and hypotheses about how professional development programs might influence professional development of health science faculty members. Using the model as a guide, we developed a study using a quantitative and qualitative design. These analyses should provide insight into what works in recruiting and supporting productive men and women faculty in academic medical centers.

Status of NASA's Advanced Radioisotope Power Conversion Technology Research and Development

NASA Technical Reports Server (NTRS)

Wong, Wayne A.; Anderson, David J.; Tuttle, Karen L.; Tew, Roy C.

2006-01-01

NASA s Advanced Radioisotope Power Systems (RPS) development program is funding the advancement of next generation power conversion technologies that will enable future missions that have requirements that can not be met by either the ubiquitous photovoltaic systems or by current Radioisotope Power Systems (RPS). Requirements of advanced radioisotope power systems include high efficiency and high specific power (watts/kilogram) in order to meet mission requirements with less radioisotope fuel and lower mass. Other Advanced RPS development goals include long-life, reliability, and scalability so that these systems can meet requirements for a variety of future space applications including continual operation surface missions, outer-planetary missions, and solar probe. This paper provides an update on the Radioisotope Power Conversion Technology Project which awarded ten Phase I contracts for research and development of a variety of power conversion technologies consisting of Brayton, Stirling, thermoelectrics, and thermophotovoltaics. Three of the contracts continue during the current Phase II in the areas of thermoelectric and Stirling power conversion. The accomplishments to date of the contractors, project plans, and status will be summarized.

Current State of Animal (Mouse) Modeling in Melanoma Research.

PubMed

Kuzu, Omer F; Nguyen, Felix D; Noory, Mohammad A; Sharma, Arati

2015-01-01

Despite the considerable progress in understanding the biology of human cancer and technological advancement in drug discovery, treatment failure remains an inevitable outcome for most cancer patients with advanced diseases, including melanoma. Despite FDA-approved BRAF-targeted therapies for advanced stage melanoma showed a great deal of promise, development of rapid resistance limits the success. Hence, the overall success rate of melanoma therapy still remains to be one of the worst compared to other malignancies. Advancement of next-generation sequencing technology allowed better identification of alterations that trigger melanoma development. As development of successful therapies strongly depends on clinically relevant preclinical models, together with the new findings, more advanced melanoma models have been generated. In this article, besides traditional mouse models of melanoma, we will discuss recent ones, such as patient-derived tumor xenografts, topically inducible BRAF mouse model and RCAS/TVA-based model, and their advantages as well as limitations. Although mouse models of melanoma are often criticized as poor predictors of whether an experimental drug would be an effective treatment, development of new and more relevant models could circumvent this problem in the near future.

Recent advances in proteomic applications for schistosomiasis research: potential clinical impact.

PubMed

Sotillo, Javier; Doolan, Denise; Loukas, Alex

2017-02-01

Schistosomiasis is a neglected tropical disease affecting hundreds of millions of people worldwide. Recent advances in the field of proteomics and the development of new and highly sensitive mass spectrometers and quantitative techniques have provided new tools for advancing the molecular biology, cell biology, diagnosis and vaccine development for public health threats such as schistosomiasis. Areas covered: In this review we describe the latest advances in research that utilizes proteomics-based tools to address some of the key challenges to developing effective interventions against schistosomiasis. We also provide information about the potential of extracellular vesicles to advance the fight against this devastating disease. Expert commentary: Different proteins are already being tested as vaccines against schistosomiasis with promising results. The re-analysis of the Schistosoma spp. proteomes using new and more sensitive mass spectrometers as well as better separation approaches will help identify more vaccine targets in a rational and informed manner. In addition, the recent development of new proteome microarrays will facilitate characterisation of novel markers of infection as well as new vaccine and diagnostic candidate antigens.

Advanced public transportation system deployment in the United States

DOT National Transportation Integrated Search

1999-01-01

This report documents work performed under FTA's Advanced Public Transportation Systems (APTS) Program, a program structured to undertake research and development of innovative applications of advanced navigation, information, and communication techn...

Benefits assessment of advanced public transportation system technologies, update 2000

DOT National Transportation Integrated Search

This report was performed under the Federal Transit Administration's (FTA) Advanced Public Transportation Systems (APTS) Program. This program focuses on the development and demonstration of innovative advanced navigation, information and communicati...

Advanced public transportation systems : the state of the art update 2000

DOT National Transportation Integrated Search

2000-12-01

This report documents work performed under FTA's Advanced Public Transportation Systems (APTS) Program, a program structured to undertake research and development of innovative applications of advanced navigation, communication, information, computer...

ADVANCED MANUFACTURING TEAM

NASA Image and Video Library

2014-01-16

ZACK JONES AND JIM LYDON OF MSFC’S ADVANCED MANUFACTURING TEAM, WITH MSFC’S M2 SELECTIVE LASER MELTING SYSTEM. THE M2 IS CURRENTLY DEDICATED TO ADVANCED COPPER MATERIAL DEVELOPMENT FOR THE LOW COST UPPER STAGE PROGRAM.