Code of Federal Regulations, 2011 CFR
2011-07-01
... distributed across the specific number of units. The nonrecurring research, development, test, and evaluation... significant military equipment on the United States Munitions List having a nonrecurring research, development... for research, development, test, and evaluation shall be based on DoD obligations recorded to the date...
ChemCam Mast Unit Being Prepared for Laser Firing
2010-12-23
Researchers prepare for a test of the Chemistry and Camera ChemCam instrument that will fly on NASA Mars Science Laboratory mission; researchers are preparing the instrument mast unit for a laser firing test.
Effectiveness of Multipurpose Unit Early Classroom Intervention Program for 4-5-Year-Old Children
ERIC Educational Resources Information Center
Celebioglu Morkoc, Ozlem; Aktan Acar, Ebru
2014-01-01
This research examined the effectiveness of Multipurpose Unit Early Classroom Intervention Program (MUECIP) prepared for 4-5-year-old (48-60 months) children whose development is at risk because of their families' socioeconomic conditions. The research adopted a preliminary test-final test control group trial model. The research participants were…
Design, construction, and testing of a five active axes magnetic bearing system
NASA Technical Reports Server (NTRS)
Delprete, Cristiana; Genta, Giancarlo; Carabelli, Stefano
1994-01-01
A high speed electric spindle based on active electromagnetic suspension technology has been designed, built, and tested. The main goal of the research work was the construction of a highly modular unit which can be used for teaching and research purposes. The design of the electromechanical components and of the control unit is described in detail, together with the characterization tests performed on the various subsystems. A description of the preliminary tests on the unit, conducted at speeds not in excess of the first deformation critical speed of the rotor, concludes the work.
CGBA, Pilot Kent Rominger films HHDTC units in Spacelab
1995-11-05
STS073-131-014 (20 October-5 November 1995) --- Astronaut Kent V. Rominger, STS-73 pilot, uses a camcorder to record progress in the Hand-Held Diffusion Test Cell (HHDTC) experiment. This test dealt with crystal growth by liquid-to-liquid diffusion. Four HHDTC units containing four test cells each produced protein crystals by diffusing one liquid to another. Rominger joined four other NASA astronauts and two guest researchers for 16 days of in-space United States Microgravity Laboratory 2 (USML-2) research aboard the Space Shuttle Columbia.
Mobile Food Ordering Application using Android OS Platform
NASA Astrophysics Data System (ADS)
Yosep Ricky, Michael
2014-03-01
The purpose of this research is making an ordering food application based on Android with New Order, Order History, Restaurant Profile, Order Status, Tracking Order, and Setting Profile features. The research method used in this research is water model of System Development Life Cycle (SDLC) method with following phases: requirement definition, analyzing and determining the features needed in developing application and making the detail definition of each features, system and software design, designing the flow of developing application by using storyboard design, user experience design, Unified Modeling Language (UML) design, and database structure design, implementation an unit testing, making database and translating the result of designs to programming language code then doing unit testing, integration and System testing, integrating unit program to one unit system then doing system testing, operation and maintenance, operating the result of system testing and if any changes and reparations needed then the previous phases could be back. The result of this research is an ordering food application based on Android for customer and courier user, and a website for restaurant and admin user. The conclusion of this research is to help customer in making order easily, to give detail information needed by customer, to help restaurant in receiving order, and to help courier while doing delivery.
Using the Teach-Back Method in Patient Education to Improve Patient Satisfaction.
Centrella-Nigro, Andrea M; Alexander, Catherine
2017-01-01
This quasi-experimental research study used two similar nursing units to test the effects of teach back on Hospital Consumer Assessment of Healthcare Providers and Systems (HCAHPS) scores. A pretest-posttest design tested 24 nurses' knowledge, attitudes, and beliefs about teach back. Education specialists provided a 1-hour teaching session on teach back to all nurses in the intervention unit. A significant improvement in knowledge scores in the pretest-posttest was found using paired t tests (p = .002). Qualitative analysis of nurses' comments demonstrated strong support for teach back in the post-test. The HCAHPS scores were not significantly improved in the intervention unit when compared with the control unit. More research needs to be conducted to determine the effectiveness of teach back on HCAHPS scores. J Contin Educ Nurs. 2017;48(1):47-52. Copyright 2017, SLACK Incorporated.
A PLAN FOR FIELD TESTING R/I UNITS.
ERIC Educational Resources Information Center
WARDROP, JAMES L.; AND OTHERS
THIS PAPER DISCUSSES THE FIELD TESTING OF RESEARCH AND INSTRUCTION UNITS IN OPERATION IN A NUMBER OF WISCONSIN SCHOOLS. THE UNIT IS A REORGANIZED SCHOOL STRUCTURE WHICH IS MADE UP OF A LEARNING SPECIALIST LEADER, TEACHERS, PARAPROFESSIONALS, AND STUDENTS. THE MAJOR AIMS OF THIS EDUCATIONAL INNOVATION ARE (1) TO DEVELOP AND MAINTAIN AN…
Fiscal Year 2012 United States Air Force Agency Financial Report
2012-01-01
Air Force Research Laboratory (AFRL) and Lawrence Livermore National Laboratory (LLNL) aggressively designed and tested an advanced warhead to...Reaper procurement & RPA capabilities, Light Attack Armed Reconnaissance buys, Joint Strike Fighter, satellites). Research , Development, Test and...Military Personnel Operations, Readiness & Support Procurement Research , Development, Test & Evaluation
NASA Technical Reports Server (NTRS)
1982-01-01
Significant aircraft tests which were performed are highlighted. The broad range of the research and technology activities. The conributions of this work toward maintaining United States leadership in aeronautics and space research are illustrated.
DOT National Transportation Integrated Search
1998-03-01
The Strategic Highway Research Program developed and coordinated construction of test sections for flexible pavement maintenance throughout the United States and Canada. Test sites included specific test sections for evaluation of the performance of ...
CSI computer system/remote interface unit acceptance test results
NASA Technical Reports Server (NTRS)
Sparks, Dean W., Jr.
1992-01-01
The validation tests conducted on the Control/Structures Interaction (CSI) Computer System (CCS)/Remote Interface Unit (RIU) is discussed. The CCS/RIU consists of a commercially available, Langley Research Center (LaRC) programmed, space flight qualified computer and a flight data acquisition and filtering computer, developed at LaRC. The tests were performed in the Space Structures Research Laboratory (SSRL) and included open loop excitation, closed loop control, safing, RIU digital filtering, and RIU stand alone testing with the CSI Evolutionary Model (CEM) Phase-0 testbed. The test results indicated that the CCS/RIU system is comparable to ground based systems in performing real-time control-structure experiments.
NASA Technical Reports Server (NTRS)
Lewandowski, Edward J.
2013-01-01
The Advanced Stirling Radioisotope Generator (ASRG) is a high-efficiency generator being developed for potential use on a Discovery 12 space mission. Lockheed Martin designed and fabricated the ASRG Engineering Unit (EU) under contract to the Department of Energy. This unit was delivered to NASA Glenn Research Center in 2008 and has been undergoing extended operation testing to generate long-term performance data for an integrated system. It has also been used for tests to characterize generator operation while varying control parameters and system inputs, both when controlled with an alternating current (AC) bus and with a digital controller. The ASRG EU currently has over 27,000 hours of operation. This paper summarizes all of the tests that have been conducted on the ASRG EU over the past 3 years and provides an overview of the test results and what was learned.
Joint Services Electronics Program.
1983-04-01
shape of the photon-assisted tunneling features and of their dependence on laser power. The cleanest test of the theory was made at 4.2 K, above T...Properties of Small-area Tunnel Junctions by research unit 2; Nonequilibrium Switching Phenomena on Picosecond Time Scales by research unit 2; Liquid...ocean, with the lower ends grounded or joined by a third conductor in a tunnel through the mountain has been suc-Tested. A theoretical and experimental
Test Format and the Variation of Gender Achievement Gaps within the United States
ERIC Educational Resources Information Center
Reardon, Sean; Fahle, Erin; Kalogrides, Demetra; Podolsky, Anne; Zarate, Rosalia
2016-01-01
Prior research demonstrates the existence of gender achievement gaps and the variation in the magnitude of these gaps across states. This paper characterizes the extent to which the variation of gender achievement gaps on standardized tests across the United States can be explained by differing state accountability test formats. A comprehensive…
Lithium-Ion Cell Charge-Control Unit Developed
NASA Technical Reports Server (NTRS)
Reid, Concha M.; Manzo, Michelle A.; Buton, Robert M.; Gemeiner, Russel
2005-01-01
A lithium-ion (Li-ion) cell charge-control unit was developed as part of a Li-ion cell verification program. This unit manages the complex charging scheme that is required when Li-ion cells are charged in series. It enables researchers to test cells together as a pack, while allowing each cell to charge individually. This allows the inherent cell-to-cell variations to be addressed on a series string of cells and reduces test costs substantially in comparison to individual cell testing.
Design of a Facility to Test the Advanced Stirling Radioisotope Generator Engineering Unit
NASA Technical Reports Server (NTRS)
Lewandowski, Edward J.; Schreiber, Jeffrey G.; Oriti, Salvatore M.; Meer, David W.; Brace, Michael H.; Dugala, Gina
2010-01-01
The Advanced Stirling Radioisotope Generator (ASRG), a high efficiency generator, is being considered for space missions. An engineering unit, the ASRG engineering unit (EU), was designed and fabricated by Lockheed Martin under contract to the Department of Energy. This unit is currently under extended operation test at the NASA Glenn Research Center (GRC) to generate performance data and validate the life and reliability predictions for the generator and the Stirling convertors. A special test facility was designed and built for the ASRG EU. This paper summarizes details of the test facility design, including the mechanical mounting, heat-rejection system, argon system, control systems, and maintenance. The effort proceeded from requirements definition through design, analysis, build, and test. Initial testing and facility performance results are discussed.
Examining Test Speededness by Native Language
ERIC Educational Resources Information Center
Talento-Miller, Eileen; Guo, Fanmin; Han, Kyung T.
2013-01-01
When power tests include a time limit, it is important to assess the possibility of speededness for examinees. Past research on differential speededness has examined gender and ethnic subgroups in the United States on paper and pencil tests. When considering the needs of a global audience, research regarding different native language speakers is…
Open-Air Biowarfare Testing and the Evolution of Values
2016-01-01
The United States and the United Kingdom ended outdoor biological warfare testing in populated areas nearly half a century ago. Yet, the conduct, health effects, and propriety of those tests remain controversial. The varied views reflect the limits of currently available test information and evolving societal values on research involving human subjects. Western political culture has changed since the early days of the American and British testing programs. People have become less reluctant to question authority, and institutional review boards must now pre-approve research involving human subjects. Further, the heightened stringency of laboratory containment has accentuated the safety gap between a confined test space and one without physical boundaries. All this makes it less likely that masses of people would again be unwittingly subjected to secret open-air biological warfare tests. PMID:27564984
Results of a diesel multiple unit fuel tank blunt impact test
DOT National Transportation Integrated Search
2017-04-04
The Federal Railroad Administrations Office of Research and Development is conducting research into passenger locomotive fuel tank crashworthiness. A series of impact tests is being conducted to measure fuel tank deformation under two types of dyn...
ERIC Educational Resources Information Center
Harsch, Claudia; Ushloda, Ema; Ladroue, Christophe
2017-01-01
The project examined the predictive validity of the "TOEFL iBT"® test with a focus on the relationship between TOEFL iBT scores and students' subsequent academic success in postgraduate studies in one leading university in the United Kingdom, paying specific attention to the role of linguistic preparedness as perceived by students and…
PSE Aysis of Crossflow Instability on HifIre-5B Flight Test
2017-06-05
AIR FORCE RESEARCH LABORATORY AEROSPACE SYSTEMS DIRECTORATE WRIGHT-PATTERSON AIR FORCE BASE, OH 45433-7542 AIR FORCE MATERIEL COMMAND UNITED...Air Force Research Laboratory, Aerospace Systems Directorate Wright-Patterson Air Force Base, OH 45433-7542 Air Force Materiel Command, United...States Air Force 9. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES) 10. SPONSORING/MONITORING Air Force Research Laboratory Aerospace Systems
NASA Astrophysics Data System (ADS)
Latimer, T. W.; Rinehart, G. H.
1992-05-01
This report covers progress on the Milliwatt Generator Project from April 1986 through March 1988. Activities included fuel processing and characterization, production of heat sources, fabrication of pressure-burst test units, compatibility studies, impact testing, and examination of surveillance units. The major task of the Los Alamos Milliwatt Generator Project is to fabricate MC2893A heat sources (4.0 W) for MC2730A radioisotope thermoelectric generators (RTG's) and MC3599 heat sources (4.5 W) for MC3500 RTG's. The MWG Project interfaces with the following contractors: Sandia National Laboratories, Albuquerque (designer); E.I. du Pont de Nemours and Co. (Inc.), Savannah River Plant (fuel); Monsanto Research Corporation, Mound Facility (metal hardware); and General Electric Company, Neutron Devices Department (RTG's). In addition to MWG fabrication activities, Los Alamos is involved in (1) fabrication of pressure-burst test units, (2) compatibility testing and evaluation, (3) examination of surveillance units, and (4) impact testing and subsequent examination of compatibility and surveillance units.
Increasing Inferential Leverage in the Comparative Method: Placebo Tests in Small-"n" Research
ERIC Educational Resources Information Center
Glynn, Adam N.; Ichino, Nahomi
2016-01-01
We delineate the underlying homogeneity assumption, procedural variants, and implications of the comparative method and distinguish this from Mill's method of difference. We demonstrate that additional units can provide "placebo" tests for the comparative method even if the scope of inference is limited to the two units under comparison.…
Comparing Standard Deviation Effects across Contexts
ERIC Educational Resources Information Center
Ost, Ben; Gangopadhyaya, Anuj; Schiman, Jeffrey C.
2017-01-01
Studies using tests scores as the dependent variable often report point estimates in student standard deviation units. We note that a standard deviation is not a standard unit of measurement since the distribution of test scores can vary across contexts. As such, researchers should be cautious when interpreting differences in the numerical size of…
USDA-ARS?s Scientific Manuscript database
Aeration of ponds when dissolved oxygen (DO) concentrations are low is the principal management tool that allows for higher feeding rates, increased production, and decreased cost per unit fish produced. Recent research conducted at the USDA-ARS Warmwater Aquaculture Research Unit has shown that fee...
High Power Alternator Test Unit (ATU) Electrical System Test
NASA Technical Reports Server (NTRS)
Birchenough, Arthur; Hervol, David
2007-01-01
The Alternator Test Unit (ATU) in the Lunar Power System Facility (LPSF) located at the NASA Glenn Research Center (GRC) in Cleveland, OH was used to simulate the operating conditions and evaluate the performance of the ATU and it s interaction with various LPSF components in accordance with the JIMO AC Power System Requirements. The testing was carried out at the breadboard development level. Results of these tests will be used for the development and validation of analytical models for performance and lifetime prediction.
1989-03-01
orientation in Naval aviation cadets. Journal of Educational Psychology , 45, 91-109. 908 Creelman , J.A. (1954). An analysis of the physical fitness index...International Index to Periodicals. (e) Military Testing Association Proceedings, and (f) Psychological Abstracts. The research organizations of the armed...Texas, can trace its beginning to a number of Psychological Research Units of the Medical Division of the United States Army Air Corps. Some of the
[Impact of the incorporation of a nurse in an inflammatory bowel disease unit].
Amo, Leticia; González-Lama, Yago; Suárez, Cristina; Blázquez, Isabel; Matallana, Virginia; Calvo, Marta; de la Revilla, Juan; Vera, María I; Abreu, Luis
2016-05-01
Multidisciplinary units are needed because of the growing complexity and volume of patients with inflammatory bowel disease (IBD). To evaluate the healthcare, economic and research impact of incorporating a nurse into the IBD unit of the Puerta de Hierro Majadahonda University Hospital. We prospectively recorded the activity carried out by the nurse of the IBD unit from March 2010 to December 2014. During this period, healthcare demand progressively increased, with 1,558 patients being attended by our unit. The healthcare provided by the nurse included 5,293 electronic mails and 678 telephone calls. We estimated that this activity represented a saving of 3,504 in-person medical consultations and 852 accident and emergency department visits. Other activities consisted of monitoring treatments with biological and non-biological agents (8,371 laboratory tests), extraction of 342 blood samples, follow-up of 1047 diagnostic tests and consultations with other medical specialties, health education in self-administration of drugs in 114 patients, the performance of 158 granulocyte apheresis procedures, and participation in 25 research projects. The incorporation of a specialised nurse in an IBD unit had major economic, healthcare and research benefits. Copyright © 2016. Published by Elsevier Espana.
NASA Astrophysics Data System (ADS)
Saigo, Barbara Woodworth
The researcher collaborated with four high school biology teachers who had been involved for 2-1/2 years in a constructivism-based professional development experience that emphasized teaching for conceptual change and using classroom-based inquiry as a basis for making instructional decisions. The researcher and teachers designed a five-day instructional unit on biosystematics using two contrasting approaches, comprising the treatment variable. The "traditional" unit emphasized lecture, written materials, and some laboratory activities. The "constructivist" unit emphasized a specific, inquiry-based, conceptual change strategy and collaborative learning. The study used a quasi-experimental, factorial design to explore impact of instructional approach (the treatment variable) on student performance (the dependent variable) on repeated measures (three) of a biology concept test. Additional independent variables considered were gender, cumulative GPA, and the section in which students were enrolled. Scores on the biology concept test were compiled for the 3 constructivist sections (N = 44) and the 3 traditional sections (N = 42). Analysis of Covariance (ANCOVA) was applied. The main findings in regard to the primary research question were that instructional approach did not have a significant relationship to immediate post test scores or gain, but that one month after instruction students in the constructivist group demonstrated less loss of gain than those in the traditional group; i.e., their longer-term retention was greater. Also, GPA*instructional approach effects were detected for post-post-test gain. GPA and gender were significantly associated with pre-test, post-test, and post-post scores; however, in terms of change (gain) from pre-test to post-test and pre-test to post-post-test, GPA and gender were not significant effects. Section was a significant effect for all three tests, in terms of both score and gain. Gender*section effects were detected for post-test gain and post-post-test scores.
Testing of motor unit synchronization model for localized muscle fatigue.
Naik, Ganesh R; Kumar, Dinesh K; Yadav, Vivek; Wheeler, Katherine; Arjunan, Sridhar
2009-01-01
Spectral compression of surface electromyogram (sEMG) is associated with onset of localized muscle fatigue. The spectral compression has been explained based on motor unit synchronization theory. According to this theory, motor units are pseudo randomly excited during muscle contraction, and with the onset of muscle fatigue the recruitment pattern changes such that motor unit firings become more synchronized. While this is widely accepted, there is little experimental proof of this phenomenon. This paper has used source dependence measures developed in research related to independent component analysis (ICA) to test this theory.
The Effects of Unit Exercises on the Hand Grip Strength of Arm Wrestlers
ERIC Educational Resources Information Center
Yonca, Sezer S.; Engin, Çelikel B.; Serdar, Yücel A.; Mustafa, Karadag; Yüksel, Savucu
2017-01-01
The aim of this research is to evaluate the change in the hand grip strength of the male arm wrestlers before and after a unit of exercise. The participants of the research consist of sportsmen (n=16) of Firat University arm wrestling team in 18-25 age group. Within the scope of the research, all of the tests and measurements (age, length, body…
Report to the President of the United States on Sexual Assault Prevention and Response
2014-11-01
established research history based on laboratory- tested principles of memory retrieval, knowledge representation, and communication. AFOSI has been using CI...analysis methods, including scientific research , data analysis, focus groups , and on -site assessments to evaluate the Department’s SAPR program...131 Report to the President of the United States on SAPR DMDC’s focus group methodology employs a standard qualitative research approach to
Organizational Analysis of the United States Army Evaluation Center
2014-12-01
analysis of qualitative or quantitative data obtained from design reviews, hardware inspections, M&S, hardware and software testing , metrics review... Research Development Test & Evaluation (RDT&E) appropriation account. The Defense Acquisition Portal ACQuipedia website describes RDT&E as “ one of the... research , design , development, test and evaluation, production, installation, operation, and maintenance; data collection; processing and analysis
NASA Habitat Demonstration Unit (HDU) Deep Space Habitat Analog
NASA Technical Reports Server (NTRS)
Howe, A. Scott; Kennedy, Kriss J.; Gill, Tracy
2013-01-01
The NASA Habitat Demonstration Unit (HDU) vertical cylinder habitat was established as a exploration habitat testbed platform for integration and testing of a variety of technologies and subsystems that will be required in a human-occupied planetary surface outpost or Deep Space Habitat (DSH). The HDU functioned as a medium-fidelity habitat prototype from 2010-2012 and allowed teams from all over NASA to collaborate on field analog missions, mission operations tests, and system integration tests to help shake out equipment and provide feedback for technology development cycles and crew training. This paper documents the final 2012 configuration of the HDU, and discusses some of the testing that took place. Though much of the higher-fidelity functionality has 'graduated' into other NASA programs, as of this writing the HDU, renamed Human Exploration Research Analog (HERA), will continue to be available as a volumetric and operational mockup for NASA Human Research Program (HRP) research from 2013 onward.
The Moral Reasoning of Sports Management Students in the United States and Italy
ERIC Educational Resources Information Center
Forte, Almerinda
2013-01-01
The researcher analyzed the moral reasoning ability of Sports Management students in the United States and Italy. The researcher statistically analyzed data collected through a survey questionnaire designed to measure moral reasoning. The Defining Issues Test (DIT) developed by James Rest using Kohlberg's six stages of moral judgment was used in…
2014-03-03
results. As part of this research and development effort, a number of products were developed that served to advance the research and provided a testing ...Teams, U.S. Navy SEALs, brown‐water Navy personnel, and Naval Reserve Officer Training Corps midshipmen. The base conducts research and tests of newly...effort, a number of products were developed that served to advance the research , and provided a testing ground for our methodologies. In addition
Tomato seeds maturity detection system based on chlorophyll fluorescence
NASA Astrophysics Data System (ADS)
Li, Cuiling; Wang, Xiu; Meng, Zhijun
2016-10-01
Chlorophyll fluorescence intensity can be used as seed maturity and quality evaluation indicator. Chlorophyll fluorescence intensity of seed coats is tested to judge the level of chlorophyll content in seeds, and further to judge the maturity and quality of seeds. This research developed a detection system of tomato seeds maturity based on chlorophyll fluorescence spectrum technology, the system included an excitation light source unit, a fluorescent signal acquisition unit and a data processing unit. The excitation light source unit consisted of two high power LEDs, two radiators and two constant current power supplies, and it was designed to excite chlorophyll fluorescence of tomato seeds. The fluorescent signal acquisition unit was made up of a fluorescence spectrometer, an optical fiber, an optical fiber scaffolds and a narrowband filter. The data processing unit mainly included a computer. Tomato fruits of green ripe stage, discoloration stage, firm ripe stage and full ripe stage were harvested, and their seeds were collected directly. In this research, the developed tomato seeds maturity testing system was used to collect fluorescence spectrums of tomato seeds of different maturities. Principal component analysis (PCA) method was utilized to reduce the dimension of spectral data and extract principal components, and PCA was combined with linear discriminant analysis (LDA) to establish discriminant model of tomato seeds maturity, the discriminant accuracy was greater than 90%. Research results show that using chlorophyll fluorescence spectrum technology is feasible for seeds maturity detection, and the developed tomato seeds maturity testing system has high detection accuracy.
ERIC Educational Resources Information Center
PLUMPTON, RUSSEL A.
THE METHODS FOR DETERMINING PUPIL READINESS WERE STUDIED TO DEVELOP CRITERIA FOR PUPIL PARTICIPATION IN SIMULATED ENVIRONMENT LEARNING UNITS. THE LEARNING UNITS WERE SUBPROJECTS OF COOPERATIVE RESEARCH PROJECT NUMBER 1948 (ED 003 024). EACH OF THREE UNITS IN THE PROJECT WAS EXAMINED FOR PUPIL READINESS. TEST BATTERIES WERE ASSEMBLED AND…
High Voltage Hall Accelerator Propulsion System Development for NASA Science Missions
NASA Technical Reports Server (NTRS)
Kamhawi, Hani; Haag, Thomas; Huang, Wensheng; Shastry, Rohit; Pinero, Luis; Peterson, Todd; Dankanich, John; Mathers, Alex
2013-01-01
NASA Science Mission Directorates In-Space Propulsion Technology Program is sponsoring the development of a 3.8 kW-class engineering development unit Hall thruster for implementation in NASA science and exploration missions. NASA Glenn Research Center and Aerojet are developing a high fidelity high voltage Hall accelerator (HiVHAc) thruster that can achieve specific impulse magnitudes greater than 2,700 seconds and xenon throughput capability in excess of 300 kilograms. Performance, plume mappings, thermal characterization, and vibration tests of the HiVHAc engineering development unit thruster have been performed. In addition, the HiVHAc project is also pursuing the development of a power processing unit (PPU) and xenon feed system (XFS) for integration with the HiVHAc engineering development unit thruster. Colorado Power Electronics and NASA Glenn Research Center have tested a brassboard PPU for more than 1,500 hours in a vacuum environment, and a new brassboard and engineering model PPU units are under development. VACCO Industries developed a xenon flow control module which has undergone qualification testing and will be integrated with the HiVHAc thruster extended duration tests. Finally, recent mission studies have shown that the HiVHAc propulsion system has sufficient performance for four Discovery- and two New Frontiers-class NASA design reference missions.
Crime Laboratory Proficiency Testing Research Program.
ERIC Educational Resources Information Center
Peterson, Joseph L.; And Others
A three-year research effort was conducted to design a crime laboratory proficiency testing program encompassing the United States. The objectives were to: (1) determine the feasibility of preparation and distribution of different classes of physical evidence; (2) assess the accuracy of criminalistics laboratories in the processing of selected…
Revision Of Career Marksmanship Training Requirements For The United States Marine Corps
2016-03-01
suppressors and noise dampening technologies have been proven to reduce the level of impact on a shooter or group of shooters by allowing steady...Effects of rifle zero and size of shot group on marksmanship scores. (Research Note 86–15). Alexandria, VA: United States Army Research Institute...Research Report 1255). Tierney, T. J., Cartner, J. A., & Thompson, T. J. (1979). Basic rifle marksmanship test: Trainee pretest and posttest attitudes
Langley aeronautics and space test highlights, 1984
NASA Technical Reports Server (NTRS)
1984-01-01
The role of the Langley Research Center is to perform basic and applied research necessary for the advancement of aeronautics and space flight, to generate new and advanced concepts for the accomplishment of related national goals, and to provide research advice, technological support, and assistance to other NASA installations, other government agencies, and industry. Some of the significant tests which were performed during calendar year 1984 in Langley test facilities are highlighted. The broad range of the research and technology activities at the Langley Research Center and the contributions of this work toward maintaining United States leadership in aeronautics and space research are illustrated.
Research and technology highlights, 1992
NASA Technical Reports Server (NTRS)
1993-01-01
The mission of the NASA Langley Research Center is to increase the knowledge and capability of the United States in a full range of aeronautics disciplines and in selected space disciplines. This mission will be accomplished by performing innovative research relevant to national needs and Agency goals, transferring technology to users in a timely manner, and providing development support to other United States Government agencies, industry, and other NASA centers. Highlights of the major accomplishments and applications that have been made by Langley researchers and by our university and industry colleagues during the past year are presented. The highlights illustrate both the broad range of research and technology (R&T) activities supported by NASA Langley Research Center and the contributions of this work toward maintaining United States leadership in aeronautics and space research. Some of the Center's most important research and testing facilities are also described.
Schaeffer, Merlin
2013-05-01
An ever-growing number of studies investigates the relation between ethnic diversity and social cohesion, but these studies have produced mixed results. In cross-national research, some scholars have recently started to investigate more refined and informative indices of ethnic diversity than the commonly used Hirschman-Herfindahl Index. These refined indices allow to test competing theoretical explanations of why ethnic diversity is associated with declines in social cohesion. This study assesses the applicability of this approach for sub-national analyses. Generally, the results confirm a negative association between social cohesion and ethnic diversity. However, the competing indices are empirically indistinguishable and thus insufficient to test different theories against one another. Follow-up simulations suggest the general conclusion that the competing indices are meaningful operationalizations only if a sample includes: (1) contextual units with small and contextual units with large minority shares, as well as (2) contextual units with diverse and contextual units with polarized ethnic compositions. The results are thus instructive to all researchers who wish to apply different diversity indices and thereby test competing theories. Copyright © 2013 Elsevier Inc. All rights reserved.
A knowledge based application of the extended aircraft interrogation and display system
NASA Technical Reports Server (NTRS)
Glover, Richard D.; Larson, Richard R.
1991-01-01
A family of multiple-processor ground support test equipment was used to test digital flight-control systems on high-performance research aircraft. A unit recently built for the F-18 high alpha research vehicle project is the latest model in a series called the extended aircraft interrogation and display system. The primary feature emphasized monitors the aircraft MIL-STD-1553B data buses and provides real-time engineering units displays of flight-control parameters. A customized software package was developed to provide real-time data interpretation based on rules embodied in a highly structured knowledge database. The configuration of this extended aircraft interrogation and display system is briefly described, and the evolution of the rule based package and its application to failure modes and effects testing on the F-18 high alpha research vehicle is discussed.
Testing to Characterize the Advanced Stirling Radioisotope Generator Engineering Unit
NASA Technical Reports Server (NTRS)
Lewandowski, Edward; Schreiber, Jeffrey
2010-01-01
The Advanced Stirling Radioisotope Generator (ASRG), a high efficiency generator, is being considered for space missions. Lockheed Martin designed and fabricated an engineering unit (EU), the ASRG EU, under contract to the Department of Energy. This unit is currently undergoing extended operation testing at the NASA Glenn Research Center to generate performance data and validate life and reliability predictions for the generator and the Stirling convertors. It has also undergone performance tests to characterize generator operation while varying control parameters and system inputs. This paper summarizes and explains test results in the context of designing operating strategies for the generator during a space mission and notes expected differences between the EU performance and future generators.
NASA Astrophysics Data System (ADS)
Rustam, Shahrulfadly; Kassim, Mohar
2018-05-01
The aim of this study is to develop physical fitness index (PFI) for physical fitness among Army Reserve Officer Training Unit Cadet Malaysia. This study use 30 meter speed run as a physical fitness test battery to develop physical fitness index (PFI) and to evaluate the subject fitness speed. 212 male respondent (N=212) was selected in this study including Army Reserve Officer Training Unit Cadet of National Defence University of Malaysia. 30 meter sprint was used as a instrument for this study. The methodology will be adopted for this study is quantitative research in the form of a quasi-experiment. Quasi-experimental methods is used to measure and evaluate the level of physical fitness and develop Physical Fitness Index especially in speed. The design of this study is quasi-experimental study design with pre-test and post-test. The study design is quasi-experimental research design in which the data is obtained through the practical test in the field. The data were analysed by using the SPSS software version 20 to calculate the mean, standard deviation and t-test for develop physical fitness index (PFI) and to evaluate the fitness speed level for Army Reserve Officers Training Unit Cadet Malaysia. The findings showed mean and standard deviation for develope physical fitness index is (M=4.84) and (SD=0.48). The t-test for evaluate fitness level in speed for pre-test and post-test is significantly difference (p ≤ 0.05). The implication at this study is that the develope of standard physical fitness index is able to identify the level of physical fitness among Army Reserve Officer Training Unit Cadet Malaysia.
Verification testing of the Aquasource UF unit ws conducted over two test periods at the Aqua2000 Research Center in San Diego, CA. The first test period, from 3/5 - 4/19/99, represented winter/spring conditons. The second test period, from 8/25 - 9/28/99, represented summer/fall...
Assessing the Attitudes of Administrators to Include Students with Disabilities
ERIC Educational Resources Information Center
Abernathy, Frederick Douglas
2012-01-01
The purpose of this research was to assess the attitudes of administrators in a medium sized school district in the Southeastern region of the United States. The researcher used a quantitative descriptive comparative pre-test and post-test design with a convenience sampling of the district administrators. There were 21 administrators at the…
DOE Office of Scientific and Technical Information (OSTI.GOV)
Giovanni, D.V.; Carr, R.C.; Landham, E.C.
Two products of coal quality research at the Electric Power Research Institute TM (EPRI) are available for field evaluation: Coal Quality Impact Model (CQIM and Fireside Testing Guidelines (FIG). The CQIM is a computer program that may be tailored to simulate the performance characteristics of a coal-fired power plant. The FIG is a technical report that guides utilities in conducting field tests to gather performance data and quantify the technical and economic impacts of different coals. Moreover, the results from field tests may be utilized to validate and assess the applicability of the CQIM. Field tests were conducted at Mississippimore » Power Company`s Watson Unit 4 to evaluate the coal quality impacts of coal switching on boiler performance and emissions. Watson Unit 4 is a 255 MW (gross), opposed-wall, pulverized-coal-fired boiler manufactured by Riley Stoker Corporation and rated at 1,779,000 lb/hr steam flow at 1000{degrees}F superheat steam temperature and 2,500 psig. The unit is equipped with a cold-side electrostatic precipitator for particulate matter control. Comprehensive tests were conducted on all major equipment components, including the pulverizers, fans, combustion equipment, boiler heat transfer surfaces, air preheater, and electrostatic precipitator, for two coals. The CQIN4 was configured to predict the performance of the unit when burning each coal. The work was sponsored by EPRI, and Mississippi Power Company (MPC) was the host utility company. This report summarizes results from the field test program, including potential heat rate improvements that were identified, and the differences in unit operations and performance for the two coals. The results from the CQIM validation effort are also presented.« less
Commercial landscape of noninvasive prenatal testing in the United States.
Agarwal, Ashwin; Sayres, Lauren C; Cho, Mildred K; Cook-Deegan, Robert; Chandrasekharan, Subhashini
2013-06-01
Cell-free fetal DNA-based noninvasive prenatal testing (NIPT) could significantly change the paradigm of prenatal testing and screening. Intellectual property (IP) and commercialization promise to be important components of the emerging debate about clinical implementation of these technologies. We have assembled information about types of testing, prices, turnaround times, and reimbursement of recently launched commercial tests in the United States from the trade press, news articles, and scientific, legal, and business publications. We also describe the patenting and licensing landscape of technologies underlying these tests and ongoing patent litigation in the United States. Finally, we discuss how IP issues may affect clinical translation of NIPT and their potential implications for stakeholders. Fetal medicine professionals (clinicians and researchers), genetic counselors, insurers, regulators, test developers, and patients may be able to use this information to make informed decisions about clinical implementation of current and emerging noninvasive prenatal tests. © 2013 John Wiley & Sons, Ltd.
Commercial Landscape of noninvasive prenatal testing in the United States
Agarwal, Ashwin; Sayres, Lauren C.; Cho, Mildred K.; Cook-Deegan, Robert; Chandrasekharan, Subhashini
2014-01-01
Cell-free fetal DNA-based noninvasive prenatal testing (NIPT) could significantly change the paradigm of prenatal testing and screening. Intellectual property (IP) and commercialization promise to be important components of the emerging debate about clinical implementation of these technologies. We have assembled information about types of testing, prices, turnaround times and reimbursement of recently launched commercial tests in the United States from the trade press, news articles, and scientific, legal, and business publications. We also describe the patenting and licensing landscape of technologies underlying these tests and ongoing patent litigation in the United States. Finally, we discuss how IP issues may affect clinical translation of NIPT and their potential implications for stakeholders. Fetal medicine professionals (clinicians and researchers), genetic counselors, insurers, regulators, test developers and patients may be able to use this information to make informed decisions about clinical implementation of current and emerging noninvasive prenatal tests. PMID:23686656
An overview of current activities at the National Solar Thermal Test Facility
NASA Astrophysics Data System (ADS)
Cameron, C. P.; Klimas, P. C.
This paper is a description of the United States Department of Energy's National Solar Thermal Test Facility, highlighting current test programs. In the central receiver area, research underway supports commercialization of molten nitrate salt technology, including receivers, thermal energy transport, and corrosion experiments. Concentrator research includes large-area, glass-metal heliostats and stretched-membrane heliostats and dishes. Test activities in support of dish-Stirling systems with reflux receivers are described. Research on parabolic troughs includes characterization of several receiver configurations. Other test facility activities include solar detoxification experiments, design assistance testing of commercially-available solar hardware, and non-DOE-funded work, including thermal exposure tests and testing of volumetric and PV central receiver concepts.
Langley aerospace test highlights, 1988
NASA Technical Reports Server (NTRS)
1989-01-01
The role of the Langley Research Center is to perform basic and applied research necessary for the advancement of aeronautics and space flight, to generate new and advanced concepts for the accomplishment of related national goals, and to provide research advice, technological support, and assistance to other NASA installations, other government agencies, and industry. Some of the significant tests which were performed during calendar year 1988 in Langley test facilities, a number of which are unique in the world are highlighted. Both the broad range of the research and technology activities at the Langley Research Center and the contributions of this work toward maintaining United States leadership in aeronautics and space research are illustrated.
The modern rotor aerodynamic limits survey: A report and data survey
NASA Technical Reports Server (NTRS)
Cross, J.; Brilla, J.; Kufeld, R.; Balough, D.
1993-01-01
The first phase of the Modern Technology Rotor Program, the Modern Rotor Aerodynamic Limits Survey, was a flight test conducted by the United States Army Aviation Engineering Flight Activity for NASA Ames Research Center. The test was performed using a United States Army UH-60A Black Hawk aircraft and the United States Air Force HH-60A Night Hawk instrumented main-rotor blade. The primary purpose of this test was to gather high-speed, steady-state, and maneuvering data suitable for correlation purposes with analytical prediction tools. All aspects of the data base, flight-test instrumentation, and test procedures are presented and analyzed. Because of the high volume of data, only select data points are presented. However, access to the entire data set is available upon request.
ERIC Educational Resources Information Center
Peterson, Norman G., Ed.
As part of the United States Army's Project A, research has been conducted to develop and field test a battery of experimental tests to complement the Armed Services Vocational Aptitude Battery in predicting soldiers' job performance. Project A is the United States Army's large-scale manpower effort to improve selection, classification, and…
1979-09-01
Smutz O ARI FIELD UNIT AT FORT HOOD, TEXAS ’ . : ’’ "".,,- U.S. Army Research Institute for the Behavioral and Social Sciences September 1979 Approved for...public release; distribution unlimited., , 801II 2(" 1<. U. S. ARMY RESEARCH INSTITUTE FOR THE BEHAVIORAL AND SOCIAL SCIENCES A Field Operating...S. Army Research Institute for the Behavioral and Social Sciences. ATTN PERI-P, 5001 Eisenhower Avenue, Alexandria, Virginia 22333. FINAL
NASA Astrophysics Data System (ADS)
Ramirez, Andres; Rahnemoonfar, Maryam
2017-04-01
A hyperspectral image provides multidimensional figure rich in data consisting of hundreds of spectral dimensions. Analyzing the spectral and spatial information of such image with linear and non-linear algorithms will result in high computational time. In order to overcome this problem, this research presents a system using a MapReduce-Graphics Processing Unit (GPU) model that can help analyzing a hyperspectral image through the usage of parallel hardware and a parallel programming model, which will be simpler to handle compared to other low-level parallel programming models. Additionally, Hadoop was used as an open-source version of the MapReduce parallel programming model. This research compared classification accuracy results and timing results between the Hadoop and GPU system and tested it against the following test cases: the CPU and GPU test case, a CPU test case and a test case where no dimensional reduction was applied.
Successful completion of a cyclic ground test of a mercury ion auxiliary propulsion system
NASA Technical Reports Server (NTRS)
Francisco, David R.; Low, Charles A., Jr.; Power, John L.
1988-01-01
An engineering model Ion Auxiliary Propulsion System (IAPS) 8-cm thruster (S/N 905) has completed a life test at NASA Lewis Research Center. The mercury ion thruster successfully completed and exceeded the test goals of 2557 on/off cycles and 7057 hr of operation at full thrust. The final 1200 cycles and 3600 hr of the life test were conducted using an engineering model of the IAPS power electronics unit (PEU) and breadboard digital controller and interface unit (DCIU). This portion of the test is described in this paper with a charted history of thruster operating parameters and off-normal events. Performance and operating characteristics were constant throughout the test with only minor variations. The engineering model power electronics unit operated without malfunction; the flight software in the digital controller and interface unit was exercised and verified. Post-test inspection of the thruster revealed facility enhanced accelerator grid erosion but overall the thruster was in good condition. It was concluded that the thruster performance was not drastically degraded by time or cycles. Additional cyclic testing is currently under consideration.
Successful completion of a cyclic ground test of a mercury Ion Auxiliary Propulsion System
NASA Technical Reports Server (NTRS)
Francisco, David R.; Low, Charles A., Jr.; Power, John L.
1988-01-01
An engineering model Ion Auxiliary Propulsion System (IAPS) 8-cm thruster (S/N 905) has completed a life test at NASA Lewis Research Center. The mercury ion thruster successfully completed and exceeded the test goals of 2557 on/off cycles and 7057 hr of operation at full thrust. The final 1200 cycles and 3600 hr of the life test were conducted using an engineering model of the IAPS power electronics unit (PEU) and breadboard digital controller and interface unit (DCIU). This portion of the test is described in this paper with a charted history of thruster operating parameters and off-normal events. Performance and operating characteristics were constant throughout the test with only minor variations. The engineering model power electronics unit operated without malfunction; the flight software in the digital controller and interface unit was exercised and verified. Post-test inspection of the thruster revealed facility enhanced accelerator grid erosion but overall the thruster was in good condition. It was concluded that the thruster performance was not drastically degraded by time or cycles. Additional cyclic testing is currently under consideration.
The Learning Disabilities Unit at the State College of Optometry/SUNY.
ERIC Educational Resources Information Center
Solan, Harold A.; Springer, Florence E.
1986-01-01
The Learning Disabilities Unit of New York's State College of Optometry, providing testing and research for learning disabled adults and children and professional instruction and clinical experience for students of optometry and related fields, is described. (MSE)
Auxiliary propulsion system flight package
NASA Technical Reports Server (NTRS)
Collett, C. R.
1987-01-01
Hughes Aircraft Company developed qualified and integrated flight, a flight test Ion Auxiliary Propulsion System (IAPS), on an Air Force technology satellite. The IAPS Flight Package consists of two identical Thruster Subsystems and a Diagnostic Subsystem. Each thruster subsystem (TSS) is comprised of an 8-cm ion Thruster-Gimbal-Beam Shield Unit (TGBSU); Power Electronics Unit; Digital Controller and Interface Unit (DCIU); and Propellant Tank, Valve and Feed Unit (PTVFU) plus the requisite cables. The Diagnostic Subsystem (DSS) includes four types of sensors for measuring the effect of the ion thrusters on the spacecraft and the surrounding plasma. Flight qualifications of IAPS, prior to installation on the spacecraft, consisted of performance, vibration and thermal-vacuum testing at the unit level, and thermal-vacuum testing at the subsystem level. Mutual compatibility between IAPS and the host spacecraft was demonstrated during a series of performance and environmental tests after the IAPS Flight Package was installed on the spacecraft. After a spacecraft acoustic test, performance of the ion thrusters was reverified by removing the TGBSUs for a thorough performance test at Hughes Research Laboratories (HRL). The TGBSUs were then reinstalled on the spacecraft. The IAPS Flight Package is ready for flight testing when Shuttle flights are resumed.
Langley aerospace test highlights, 1989
NASA Technical Reports Server (NTRS)
1990-01-01
The role of the NASA Langley Research Center is to perform basic and applied research necessary for the advancement of aeronautics and spaceflight, to generate new and advanced concepts for the accomplishment of related national goals, and to provide research advice, technological support, and assistance to other NASA installations, other government agencies, and industry. Some of the significant tests that were performed during calendar year 1989 in the NASA Langley Research Center test facilities are highlighted. Both the broad range of the research and technology activities at the NASA Langley Research Center are illustrated along with the contributions of this work toward maintaining United States leadership in aeronautics and space research. Other highlights of Langley research and technology for 1989 are described in Research and Technology 1989 - Langley Research Center.
Verification testing of the Hydranautics HYDRA Cap(TM) Ultrafiltration Membrane System (Hydranautics UF unit) was conducted over two test periods at the Aqua 2000 Research Center in San Diego, CA. The first test period, from 8/3/99-9/13/99, represented summer/fall conditions. The...
Kukec, Andreja; Boznar, Marija Z; Mlakar, Primoz; Grasic, Bostjan; Herakovic, Andrej; Zadnik, Vesna; Zaletel-Kragelj, Lijana; Farkas, Jerneja; Erzen, Ivan
2014-05-01
The study of atmospheric air pollution research in complex terrains is challenged by the lack of appropriate methodology supporting the analysis of the spatial relationship between phenomena affected by a multitude of factors. The key is optimal design of a meaningful approach based on small spatial units of observation. The Zasavje region, Slovenia, was chosen as study area with the main objective to investigate in practice the role of such units in a test environment. The process consisted of three steps: modelling of pollution in the atmosphere with dispersion models, transfer of the results to geographical information system software, and then moving on to final determination of the function of small spatial units. A methodology capable of designing useful units for atmospheric air pollution research in highly complex terrains was created, and the results were deemed useful in offering starting points for further research in the field of geospatial health.
DOE Office of Scientific and Technical Information (OSTI.GOV)
Xu, Tengfang
2006-10-20
Lawrence Berkeley National Laboratory (LBNL) is now finalizing the Phase 2 Research and Demonstration Project on characterizing 2-foot x 4-foot (61-cm x 122-cm) fan-filter units in the market using the first-ever standard laboratory test method developed at LBNL.[1][2][3] Fan-filter units deliver re-circulated air and provide particle filtration control for clean environments. Much of the energy in cleanrooms (and minienvironments) is consumed by 2-foot x 4-foot (61-cm x 122-cm) or 4-foot x 4-foot (122-cm x 122-cm) fan-filter units that are typically located in the ceiling (25-100% coverage) of cleanroom controlled environments. Thanks to funding support by the California Energy Commission's Industrialmore » Program of the Public Interest Energy Research (PIER) Program, and significant participation from manufacturers and users of fan-filter units from around the world, LBNL has developed and performed a series of standard laboratory tests and reporting on a variety of 2-foot x 4-foot (61-cm x 122-cm) fan-filter units (FFUs). Standard laboratory testing reports have been completed and reported back to anonymous individual participants in this project. To date, such reports on standard testing of FFU performance have provided rigorous and useful data for suppliers and end users to better understand, and more importantly, to quantitatively characterize performance of FFU products under a variety of operating conditions.[1] In the course of the project, the standard laboratory method previously developed at LBNL has been under continuous evaluation and update.[2][3] Based upon the updated standard, it becomes feasible for users and suppliers to characterize and evaluate energy performance of FFUs in a consistent way.« less
Thermal vacuum life test facility for radioisotope thermoelectric generators
NASA Astrophysics Data System (ADS)
Deaton, R. L.; Goebel, C. J.; Amos, W. R.
In the late 1970's, the Department of Energy (DOE) assigned Monsanto Research Corporation, Mound Facility, now operated by EG and G Mound Applied Technologies, the responsibility for assembling and testing General Purpose Heat Source (GPHS) radioisotope thermoelectric generators (RTGs). Assembled and tested were five RTGs, which included four flight units and one non-flight qualification unit. Figure 1 shows the RTG, which was designed by General Electric AstroSpace Division (GE/ASD) to produce 285 W of electrical power. A detailed description of the processes for RTG assembly and testing is presented by Amos and Goebel (1989). The RTG performance data are described by Bennett, et al., (1986). The flight units will provide electrical power for the National Aeronautics and Space Administration's (NASA) Galileo mission to Jupiter (two RTGs) and the joint NASA/European Space Agency (ESA) Ulysses mission to study the polar regions of the sun (one RTG). The remaining flight unit will serve as the spare for both missions, and a non-flight qualification unit was assembled and tested to ensure that performance criteria were adequately met.
English Language Testing in U.S. Colleges and Universities.
ERIC Educational Resources Information Center
Douglas, Dan, Ed.
A collection of essays and research reports addresses issues in the testing of English as a Second Language (ESL) among foreign students in United States colleges and universities. They include the following: "Overview of ESL Testing" (Ralph Pat Barrett); "English Language Testing: The View from the Admissions Office" (G. James…
Alternatives to Animal Use in Research, Testing, and Education. Summary.
ERIC Educational Resources Information Center
Congress of the U.S., Washington, DC. Office of Technology Assessment.
With an estimated 17-22 million animals used in laboratories annually in the United States, public interest in animal welfare has sparked an often emotional debate over such uses of animals. Concerns focus on balancing societal needs for continued progress in biomedical and behavioral research, for toxicity testing to safeguard the public, and for…
ERIC Educational Resources Information Center
Jacobs, Clinton O.
The report is an evaluation of the effectiveness of the 12 instructional units developed around the use of the Briggs-Stratton Model 80302, 3HP, 8 cu. in. displacement engine having a fuel induction system similar in construction to farm tractor types. The evaluation procedure used was the "one-group Pre-test and Post-test" research method. The…
Langley aerospace test highlights, 1985
NASA Technical Reports Server (NTRS)
1986-01-01
The role of the Langley Research Center is to perform basic and applied research necessary for the advancement of aeronautics and space flight, to generate new and advanced concepts for the accomplishment of related national goals, and to provide research advice, technological support, and assistance to other NASA installations, other government agencies, and industry. Significant tests which were performed during calendar year 1985 in Langley test facilities, are highlighted. Both the broad range of the research and technology activities at the Langley Research Center and the contributions of this work toward maintaining United States leadership in aeronautics and space research, are illustrated. Other highlights of Langley research and technology for 1985 are described in Research and Technology-1985 Annual Report of the Langley Research Center.
NASA Astrophysics Data System (ADS)
Marulcu, Ismail; Barnett, Michael
2016-01-01
Background: Elementary Science Education is struggling with multiple challenges. National and State test results confirm the need for deeper understanding in elementary science education. Moreover, national policy statements and researchers call for increased exposure to engineering and technology in elementary science education. The basic motivation of this study is to suggest a solution to both improving elementary science education and increasing exposure to engineering and technology in it. Purpose/Hypothesis: This mixed-method study examined the impact of an engineering design-based curriculum compared to an inquiry-based curriculum on fifth graders' content learning of simple machines. We hypothesize that the LEGO-engineering design unit is as successful as the inquiry-based unit in terms of students' science content learning of simple machines. Design/Method: We used a mixed-methods approach to investigate our research questions; we compared the control and the experimental groups' scores from the tests and interviews by using Analysis of Covariance (ANCOVA) and compared each group's pre- and post-scores by using paired t-tests. Results: Our findings from the paired t-tests show that both the experimental and comparison groups significantly improved their scores from the pre-test to post-test on the multiple-choice, open-ended, and interview items. Moreover, ANCOVA results show that students in the experimental group, who learned simple machines with the design-based unit, performed significantly better on the interview questions. Conclusions: Our analyses revealed that the design-based Design a people mover: Simple machines unit was, if not better, as successful as the inquiry-based FOSS Levers and pulleys unit in terms of students' science content learning.
Langley aeronautics and space test highlights, 1983
NASA Technical Reports Server (NTRS)
1984-01-01
The role of the Langley Research Center is to perform basic and applied research necessary for the advancement of aeronautics and space flight, to generate new and advanced concepts for the accomplishment of related national goals, and to provide research advice, technological support, and assistance to other NASA installations, other government agencies, and industry. Some of the significant tests which were performed during calendar year 1983 in Langley test facilities, a number of which are unique in the world are highlighted. Both the broad range of the research and technology activities at the Langley Research Center and the contributions of this work toward maintaining United States leadership in aeronautics and space research are illustrated.
Langley aerospace test highlights - 1986
NASA Technical Reports Server (NTRS)
1987-01-01
The role of the Langley Research Center is to perform basic and applied research necessary for the advancement of aeronautics and space flight, to generate new and advanced concepts for the accomplishment of related national goals, and to provide research advice, technological support, and assistance to other NASA installations, other government agencies, and industry. This report highlights some of the significant tests which were performed during calendar year 1986 in Langley test facilities, a number of which are unique in the world. The report illustrates both the broad range of the research and technology activities at the Langley Research Center and the contributions of this work toward maintaining United States leadership in aeronautics and space research.
ERIC Educational Resources Information Center
Thompson, Chalmer E.; Sedlacek, William E.
The relative contributions of a research assistantship experience to graduate training programs in counseling psychology and student personnel were evaluated. The following areas were assessed: (1) the extent to which research competencies are enhanced among former research assistants; (2) the extent to which attitudes toward research are enhanced…
Credit USAF. Original housed in the Muroc Flight Test Base, ...
Credit USAF. Original housed in the Muroc Flight Test Base, Unit History, 1 September 1942 - 30 June 1945. Alfred F. Simpson Historical Research Agency. United States Air Force. Maxwell AFB, Alabama. View captioned as "7 Sept 1945, BH-5 Base Ordinance Motor Repair Shop" with gas station and gasoline pump. View looks roughly northwest - Edwards Air Force Base, North Base, Motor Repair Shop T-16, Third & C Streets, Boron, Kern County, CA
Credit USAF, 7 September 1945. Original housed in the Muroc ...
Credit USAF, 7 September 1945. Original housed in the Muroc Flight Test Base, Unit History, 1 September 1942 - 30 June 1945. Alfred F. Simpson Historical Research Agency. United States Air Force. Maxwell AFB, Alabama. View of the mess hall, looking to the north. Sign over door reads "MFTB Muroc Flight Test Base Base Mess." - Edwards Air Force Base, North Base, Base Mess Hall T-27, Third Street, Boron, Kern County, CA
Gold Standard Testing of Motion Based Tracking Systems
2017-03-15
NUMBER 5e. TASK NUMBER 5f. WORK UNIT NUMBER H0L0 7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) 8. PERFORMING ORGANIZATION REPORT NUMBER 9...LABORATORY 711TH HUMAN PERFORMANCE WING, AIRMAN SYSTEMS DIRECTORATE, WRIGHT-PATTERSON AIR FORCE BASE, OH 45433 AIR FORCE MATERIEL COMMAND UNITED STATES AIR...711th Human Performance Wing 711th Human Performance Wing Air Force Research Laboratory Air Force Research Laboratory This report is published in the
Mitigation of Oil in Water Column: Mitigation Prototype Tests
2017-06-01
distribution is unlimited. The study was funded in part by the U.S. Department of the Interior, Bureau of Safety and Environmental Enforcement (BSEE) through...James E. Fletcher Environment &Waterways Branch Chief United States Coast Guard Research & Development Center 1 Chelsea Street New London, CT...Research and Development Center 1 Chelsea Street New London, CT 06320 10. Work Unit No. (TRAIS) 11. Contract or Grant No. Task Order #HSCG32-17-J
National remote computational flight research facility
NASA Technical Reports Server (NTRS)
Rediess, Herman A.
1989-01-01
The extension of the NASA Ames-Dryden remotely augmented vehicle (RAV) facility to accommodate flight testing of a hypersonic aircraft utilizing the continental United States as a test range is investigated. The development and demonstration of an automated flight test management system (ATMS) that uses expert system technology for flight test planning, scheduling, and execution is documented.
Stripper (print. & pub.) 971.381--Development of USTES Aptitude Test Battery.
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
How do strategic decisions and operative practices affect operating room productivity?
Peltokorpi, Antti
2011-12-01
Surgical operating rooms are cost-intensive parts of health service production. Managing operating units efficiently is essential when hospitals and healthcare systems aim to maximize health outcomes with limited resources. Previous research about operating room management has focused on studying the effect of management practices and decisions on efficiency by utilizing mainly modeling approach or before-after analysis in single hospital case. The purpose of this research is to analyze the synergic effect of strategic decisions and operative management practices on operating room productivity and to use a multiple case study method enabling statistical hypothesis testing with empirical data. 11 hypotheses that propose connections between the use of strategic and operative practices and productivity were tested in a multi-hospital study that included 26 units. The results indicate that operative practices, such as personnel management, case scheduling and performance measurement, affect productivity more remarkably than do strategic decisions that relate to, e.g., units' size, scope or academic status. Units with different strategic positions should apply different operative practices: Focused hospital units benefit most from sophisticated case scheduling and parallel processing whereas central and ambulatory units should apply flexible working hours, incentives and multi-skilled personnel. Operating units should be more active in applying management practices which are adequate for their strategic orientation.
Code of Federal Regulations, 2013 CFR
2013-04-01
... for experimental or research purposes by any scientific university, college of learning, or institution of scientific research; or (c) Free of tax for use by the United States or any agency thereof, and for use for analysis, testing, research, or experimentation by the governments of the several States...
Code of Federal Regulations, 2014 CFR
2014-04-01
... for experimental or research purposes by any scientific university, college of learning, or institution of scientific research; or (c) Free of tax for use by the United States or any agency thereof, and for use for analysis, testing, research, or experimentation by the governments of the several States...
Code of Federal Regulations, 2012 CFR
2012-04-01
... for experimental or research purposes by any scientific university, college of learning, or institution of scientific research; or (c) Free of tax for use by the United States or any agency thereof, and for use for analysis, testing, research, or experimentation by the governments of the several States...
Code of Federal Regulations, 2011 CFR
2011-04-01
... for experimental or research purposes by any scientific university, college of learning, or institution of scientific research; or (c) Free of tax for use by the United States or any agency thereof, and for use for analysis, testing, research, or experimentation by the governments of the several States...
Code of Federal Regulations, 2010 CFR
2010-04-01
... for experimental or research purposes by any scientific university, college of learning, or institution of scientific research; or (c) Free of tax for use by the United States or any agency thereof, and for use for analysis, testing, research, or experimentation by the governments of the several States...
1979-01-01
Research ........................................... 17 Command, Control and Communication (C3) with Automated Battlefield Systems ...19 Life Cycle Systems Management ............................. 22 Cost and Training Effectiveness Analysis ....................... 24 Operational Test...Training Center ................................... 66 Unit Training Programs and Management Systems ............... 68 Personnel and Manpower
Initial closed operation of the CELSS Test Facility Engineering Development Unit
NASA Technical Reports Server (NTRS)
Kliss, M.; Blackwell, C.; Zografos, A.; Drews, M.; MacElroy, R.; McKenna, R.; Heyenga, A. G.
2003-01-01
As part of the NASA Advanced Life Support Flight Program, a Controlled Ecological Life Support System (CELSS) Test Facility Engineering Development Unit has been constructed and is undergoing initial operational testing at NASA Ames Research Center. The Engineering Development Unit (EDU) is a tightly closed, stringently controlled, ground-based testbed which provides a broad range of environmental conditions under which a variety of CELSS higher plant crops can be grown. Although the EDU was developed primarily to provide near-term engineering data and a realistic determination of the subsystem and system requirements necessary for the fabrication of a comparable flight unit, the EDU has also provided a means to evaluate plant crop productivity and physiology under controlled conditions. This paper describes the initial closed operational testing of the EDU, with emphasis on the hardware performance capabilities. Measured performance data during a 28-day closed operation period are compared with the specified functional requirements, and an example of inferring crop growth parameters from the test data is presented. Plans for future science and technology testing are also discussed. Published by Elsevier Science Ltd on behalf of COSPAR.
Cook-Deegan, Robert; DeRienzo, Christopher; Carbone, Julia; Chandrasekharan, Subhashini; Heaney, Christopher; Conover, Christopher
2011-01-01
Genetic testing for inherited susceptibility to breast and ovarian cancer can be compared to similar testing for colorectal cancer as a “natural experiment.” Inherited susceptibility accounts for a similar fraction of both cancers and genetic testing results guide decisions about options for prophylactic surgery in both sets of conditions. One major difference is that in the United States, Myriad Genetics is the sole provider of genetic testing, because it has sole control of relevant patents for BRCA1 and BRCA2 genes whereas genetic testing for familial colorectal cancer is available from multiple laboratories. Colorectal cancer-associated genes are also patented, but they have been nonexclusively licensed. Prices for BRCA1 and 2 testing do not reflect an obvious price premium attributable to exclusive patent rights compared to colorectal cancer testing, and indeed Myriad’s per unit costs are somewhat lower for BRCA1/2 testing than testing for colorectal cancer susceptibility. Myriad has not enforced patents against basic research, and negotiated a Memorandum of Understanding with the National Cancer Institute in 1999 for institutional BRCA testing in clinical research. The main impact of patenting and licensing in BRCA compared to colorectal cancer is the business model of genetic testing, with a sole provider for BRCA and multiple laboratories for colorectal cancer genetic testing. Myriad’s sole provider model has not worked in jurisdictions outside the United States, largely because of differences in breadth of patent protection, responses of government health services, and difficulty in patent enforcement. PMID:20393305
ERIC Educational Resources Information Center
Ginther, April; Elder, Catherine
2014-01-01
In line with expanded conceptualizations of validity that encompass the interpretations and uses of test scores in particular policy contexts, this report presents results of a comparative analysis of institutional understandings and uses of 3 international English proficiency tests widely used for tertiary selection--the "TOEFL iBT"®…
Advanced Stirling Convertor Dynamic Test Approach and Results
NASA Technical Reports Server (NTRS)
Meer, David W.; Hill, Dennis; Ursic, Joseph
2009-01-01
The U.S. Department of Energy (DOE), Lockheed Martin (LM), and NASA Glenn Research Center (GRC) have been developing the Advanced Stirling Radioisotope Generator (ASRG) for use as a power system for space science missions. As part of the extended operation testing of this power system, the Advanced Stirling Converters (ASC) at NASA John H. Glenn Research Center undergo a vibration test sequence intended to simulate the vibration history of an ASC used in an ASRG for a space mission. This sequence includes testing at Workmanship and Flight Acceptance levels interspersed with periods of extended operation to simulate pre and post fueling. The final step in the test sequence utilizes additional testing at Flight Acceptance levels to simulate launch. To better replicate the acceleration profile seen by an ASC incorporated into an ASRG, the input spectra used in testing the convertors was modified based on dynamic testing of the ASRG Engineering Unit ( ASRG-EU) at Lockheed Martin. This paper presents the vibration test plan for current and future ASC units, including the modified input spectra, and the results of recent tests using these spectra. The test results include data from several accelerometers mounted on the convertors as well as the piston position and output power variables.
2007-04-14
Lunar CRater Observation and Sensing Satellite (LCROSS) and P.I. at NASA Ames Research Center - Total Luminance Photometer shake test in N-244 (EEL) : Metal shake table close up. Shows two units bolted on. The left one is the lens, sensor electronics and photometer sensor. The right is the digital electronics unit for the instrument. The two units, along with their cabling is one of the LCROSS science insruments.
DOE Office of Scientific and Technical Information (OSTI.GOV)
Borio, R.W.; Lewis, R.D.; Koucky, R.W.
1996-04-01
Electric utility power plants account for about one-third of the NO{sub x} and two-thirds of the SO{sub 2} emissions in the US cyclone-fired boilers, while representing about 9% of the US coal-fired generating capacity, emit about 14% of the NO{sub x} produced by coal-fired utility boilers. Given this background, the Environmental Protection Agency, the Gas Research Institute, the Electric Power Research Institute, the Pittsburgh Energy Technology Center, and the Ohio Coal Development Office sponsored a program led by ABB Combustion Engineering, Inc. (ABB-CE) to demonstrate reburning on a cyclone-fired boiler. Ohio Edison provided Unit No. 1 at their Niles Stationmore » for the reburn demonstration along with financial assistance. The Niles Unit No. 1 reburn system was started up in September 1990. This reburn program was the first full-scale reburn system demonstration in the US. This report describes work performed during the program. The work included a review of reburn technology, aerodynamic flow model testing of reburn system design concepts, design and construction of the reburn system, parametric performance testing, long-term load dispatch testing, and boiler tube wall thickness monitoring. The report also contains a description of the Niles No. 1 host unit, a discussion of conclusions and recommendations derived from the program, tabulation of data from parametric and long-term tests, and appendices which contain additional tabulated test results.« less
Thirlaway, H. I. S.
1979-01-01
Twenty years ago, politicians, concerned a the slow progress of negotiations to stop nuclear weapons testing, described the state of seismology as being in the equivalent of the Stone Age. this assessment spurred the beginning of research and development at the Atomic Weapons Research Establishment near the village of Aldermaston, England. the object was to establish the limits of seismology for the detection and identification of underground explosions against a background of earthquakes. Thereby, verification that there was compliance with a treaty to ban further nuclear tests could be assessed before making political decisions. Negotiations now taking place in Geneva between the Soviet Union, the United States, and the United Kingdom are aimed at such a treaty.
Predicting Envelope Leakage in Attached Dwellings
DOE Office of Scientific and Technical Information (OSTI.GOV)
Faakye, O.; Arena, L.; Griffiths, D.
2013-07-01
The most common method for measuring air leakage is to use a single blower door to pressurize and/or depressurize the test unit. In detached housing, the test unit is the entire home and the single blower door measures air leakage to the outside. In attached housing, this 'single unit', 'total', or 'solo' test method measures both the air leakage between adjacent units through common surfaces as well air leakage to the outside. Measuring and minimizing this total leakage is recommended to avoid indoor air quality issues between units, reduce energy losses to the outside, reduce pressure differentials between units, andmore » control stack effect. However, two significant limitations of the total leakage measurement in attached housing are: for retrofit work, if total leakage is assumed to be all to the outside, the energy benefits of air sealing can be significantly over predicted; for new construction, the total leakage values may result in failing to meet an energy-based house tightness program criterion. The scope of this research is to investigate an approach for developing a viable simplified algorithm that can be used by contractors to assess energy efficiency program qualification and/or compliance based upon solo test results.« less
Test Results from a Direct Drive Gas Reactor Simulator Coupled to a Brayton Power Conversion Unit
NASA Technical Reports Server (NTRS)
Hervol, David S.; Briggs, Maxwell H.; Owen, Albert K.; Bragg-Sitton, Shannon M.; Godfroy, Thomas J.
2010-01-01
Component level testing of power conversion units proposed for use in fission surface power systems has typically been done using relatively simple electric heaters for thermal input. These heaters do not adequately represent the geometry or response of proposed reactors. As testing of fission surface power systems transitions from the component level to the system level it becomes necessary to more accurately replicate these reactors using reactor simulators. The Direct Drive Gas-Brayton Power Conversion Unit test activity at the NASA Glenn Research Center integrates a reactor simulator with an existing Brayton test rig. The response of the reactor simulator to a change in Brayton shaft speed is shown as well as the response of the Brayton to an insertion of reactivity, corresponding to a drum reconfiguration. The lessons learned from these tests can be used to improve the design of future reactor simulators which can be used in system level fission surface power tests.
ERIC Educational Resources Information Center
Ting, Mu Yu
2017-01-01
Using the capabilities of expert knowledge structures, the researcher prepared test questions on the university calculus topic of "finding the area by integration." The quiz is divided into two types of multiple choice items (one out of four and one out of many). After the calculus course was taught and tested, the results revealed that…
Welder, Arc (welding) 810.884--Technical Report on Development of USES Aptitude Test Battery.
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
Achievement Test Preparation: A Year-Long Goal, Not a Last-Minute Thought.
ERIC Educational Resources Information Center
Matter, M. Kevin; Ligon, Glynn
Yearly administrations of a standardized achievement test are a part of the educational process in many school districts in the United States. The Systemwide Testing Program in the Austin Independent School District Office of Research and Evaluation has gradually developed a process and support materials whereby the test administrations are a tool…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
Encoder (Banking) 1-25.911-Technical Report on Standardization of the General Aptitude Test Battery.
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
Cable Maker (elec. equip.; electronics) 726.884--Development of USTES Aptitude Test Battery.
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
Cook (hotel & rest.) 313.381--Technical Report on Development of USTES Aptitude Test Battery.
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
Individual Characteristics and Unit Performance: A Review of Research and Methods
1985-02-01
behavioral segments, improves performance. Simu- lation exercises , especially those employing new high-technology devices, provide surrogate...high-technology training simulation exercise MOB Military Occupational Specialty ORTT Operational Readiness Training Test-a field test REALTRAIN A...REAListic TRAINing simulation exercise SAM Surface-to-Air Missile SAT Scholastic Aptitude Test SQT Skill Qualification Test-an Army performance meas
Enhancing Carbon Reactivity in Mercury Control in Lignite-Fired Systems
DOE Office of Scientific and Technical Information (OSTI.GOV)
Chad Wocken; Michael Holmes; John Pavlish
2008-06-30
This project was awarded through the U.S. Department of Energy (DOE) National Energy Technology Laboratory Program Solicitation DE-PS26-03NT41718-01. The Energy & Environmental Research Center (EERC) led a consortium-based effort to resolve mercury (Hg) control issues facing the lignite industry. The EERC team-the Electric Power Research Institute (EPRI); the URS Corporation; the Babcock & Wilcox Company; ADA-ES; Apogee; Basin Electric Power Cooperative; Otter Tail Power Company; Great River Energy; Texas Utilities; Montana-Dakota Utilities Co.; Minnkota Power Cooperative, Inc.; BNI Coal Ltd.; Dakota Westmoreland Corporation; the North American Coal Corporation; SaskPower; and the North Dakota Industrial Commission-demonstrated technologies that substantially enhanced themore » effectiveness of carbon sorbents to remove Hg from western fuel combustion gases and achieve a high level ({ge} 55% Hg removal) of cost-effective control. The results of this effort are applicable to virtually all utilities burning lignite and subbituminous coals in the United States and Canada. The enhancement processes were previously proven in pilot-scale and limited full-scale tests. Additional optimization testing continues on these enhancements. These four units included three lignite-fired units: Leland Olds Station Unit 1 (LOS1) and Stanton Station Unit 10 (SS10) near Stanton and Antelope Valley Station Unit 1 (AVS1) near Beulah and a subbituminous Powder River Basin (PRB)-fired unit: Stanton Station Unit 1 (SS1). This project was one of three conducted by the consortium under the DOE mercury program to systematically test Hg control technologies available for utilities burning lignite. The overall objective of the three projects was to field-test and verify options that may be applied cost-effectively by the lignite industry to reduce Hg emissions. The EERC, URS, and other team members tested sorbent injection technologies for plants equipped with electrostatic precipitators (ESPs) and spray dryer absorbers combined with fabric filters (SDAs-FFs). The work focused on technology commercialization by involving industry and emphasizing the communication of results to vendors and utilities throughout the project.« less
Design assessment of a 150 kWt CFBC Test Unit
DOE Office of Scientific and Technical Information (OSTI.GOV)
Batu, A.; Selcuk, N.; Kulah, G.
2010-04-15
For clean and efficient energy generation from coal, the most suitable technology known to date is 'Fluidized Bed Combustion' technology. Applications of circulating fluidized bed (CFB) combustion technology have been steadily increasing in both capacity and number over the past decade. Designs of these units have been based on the combustion tests carried out in pilot scale facilities to determine the combustion and desulfurization characteristics of coal and limestone reserves in CFB conditions. Similarly, utilization of Turkish lignites in CFB boilers necessitates adaptation of CFB combustion technology to these resources. However, the design of these test units are not basedmore » on firing coals with high ash, volatile matter and sulfur contents like Turkish lignites. For this purpose, a 150 kWt CFB combustor test unit is designed and constructed in Chemical Engineering Department of Middle East Technical University, based on the extensive experience acquired at the existing 0.3 MWt Bubbling Atmospheric Fluidized Bed Combustor (AFBC) Test Rig. Following the commissioning tests, a combustion test is carried out for investigation of combustion characteristics of Can lignite in CFB conditions and for assessment of the design of test unit. Comparison of the design outputs with experimental results reveals that most of the predictions and assumptions have acceptable agreement with the operating conditions. In conclusion, the performance of 150 kWt CFBC Test Unit is found to be satisfactory to be utilized for the long term research studies on combustion and desulfurization characteristics of indigenous lignite reserves in circulating fluidized bed combustors. (author)« less
Guidelines for testing and release procedures
NASA Technical Reports Server (NTRS)
Molari, R.; Conway, M.
1984-01-01
Guidelines and procedures are recommended for the testing and release of the types of computer software efforts commonly performed at NASA/Ames Research Center. All recommendations are based on the premise that testing and release activities must be specifically selected for the environment, size, and purpose of each individual software project. Guidelines are presented for building a Test Plan and using formal Test Plan and Test Care Inspections on it. Frequent references are made to NASA/Ames Guidelines for Software Inspections. Guidelines are presented for selecting an Overall Test Approach and for each of the four main phases of testing: (1) Unit Testing of Components, (2) Integration Testing of Components, (3) System Integration Testing, and (4) Acceptance Testing. Tools used for testing are listed, including those available from operating systems used at Ames, specialized tools which can be developed, unit test drivers, stub module generators, and the use of format test reporting schemes.
1991-03-01
Nu serum, 10 mM HEPES buffer, 2 mM glutamine, 1 mM sodium pyruvate, and penicillin /streptomycin (at 100 units and 100 pg/ml, respectively) and...inactivated fetal bovine serum, 100 units penicillin per ml, and 100 pg streptomycin per ml (EMEM + 10% or 5% heat-inactivated fbs). From November 16...4 mM glutamine, 15% heat-inactivated fetal bovine serum, antibiotics (SO units of penicillin and SO pg of streptomycin per ml), and SO units of
Examining Test Speededness by Native Language
ERIC Educational Resources Information Center
Talento-Miller, Eileen; Guo, Fanmin; Han, Kyung T.
2012-01-01
When power tests include a time limit, it is important to assess the possibility of "speededness" for examinees. Research on differential speededness in the past has included looking at gender and ethnic subgroups in the United States on paper and pencil tests. The needs of a global audience necessitated, and the availability of computer…
Knitting-Machine Operator (knit goods) 4-14.061--Technical Report.
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Walker, Karen
2007-01-01
In 2002, the United States Supreme Court confirmed that in the school's role of in loco parentis, drug testing of students who were involved in athletics and extracurricular activities was constitutional. In a state of the union address, George W. Bush stated that drug testing in schools had been effective and was part of "our aggressive…
High-Stakes Testing in Education: Science and Practice in K-12 Settings
ERIC Educational Resources Information Center
Bovaird, James A., Ed.; Geisinger, Kurt F., Ed.; Buckendahl, Chad W., Ed.
2011-01-01
Educational assessment and, more broadly, educational research in the United States have entered into an era characterized by a dramatic increase in the prevalence and importance of test score use in accountability systems. This volume covers a selection of contemporary issues about testing science and practice that impact the nation's public…
Design of a Facility to Test the Advanced Stirling Radioisotope Generator Engineering Unit
NASA Technical Reports Server (NTRS)
Lewandowski, Edward J.; Schreiber, Jeffrey G.; Oriti, Salvatore M.; Meer, David W.; Brace, Michael H.; Dugala, Gina
2009-01-01
The Advanced Stirling Radioisotope Generator (ASRG) is being considered to power deep space missions. An engineering unit, the ASRG-EU, was designed and fabricated by Lockheed Martin under contract to the Department of Energy. This unit is currently on an extended operation test at NASA Glenn Research Center to generate performance data and validate the life and reliability predictions for the generator and the Stirling convertors. A special test facility was designed and built for testing the ASRG-EU. Details of the test facility design are discussed. The facility can operate the convertors under AC bus control or with the ASRG-EU controller. It can regulate input thermal power in either a fixed temperature or fixed power mode. An enclosure circulates cooled air around the ASRG-EU to remove heat rejected from the ASRG-EU by convection. A custom monitoring and data acquisition system supports the test. Various safety features, which allow 2417 unattended operation, are discussed.
Experimental Results From a 2kW Brayton Power Conversion Unit
NASA Technical Reports Server (NTRS)
Hervol, David; Mason, Lee; Birchenough, Arthur
2003-01-01
This paper presents experimental test results from operation of a 2 kWe Brayton power conversion unit. The Brayton converter was developed for a solar dynamic power system flight experiment planned for the Mir Space Station in 1997. The flight experiment was cancelled, but the converter was tested at Glenn Research Center as part of the Solar Dynamic Ground Test Demonstration system which included a solar concentrator, heat receiver, and space radiator. In preparation for the current testing, the heat receiver was removed and replaced with an electrical resistance heater, simulating the thermal input of a steady-state nuclear source. The converter was operated over a full range of thermal input power levels and rotor speeds to generate an overall performance map. The converter unit will serve as the centerpiece of a Nuclear Electric Propulsion Testbed at Glenn. Future potential uses for the Testbed include high voltage electrical controller development, integrated electric thruster testing and advanced radiator demonstration testing to help guide high power Brayton technology development for Nuclear Electric Propulsion (NEP).
THE ROLE OF EDUCATIONAL RESEARCH IN EDUCATIONAL CHANGE, THE UNITED STATES.
ERIC Educational Resources Information Center
GUBA, EGON G.; AND OTHERS
FIVE MAJOR TYPES OF ORGANIZATIONAL SETTINGS FOR EDUCATIONAL RESEARCH ARE IDENTIFIED BY S.D. SIEBER--(1) UNIVERSITY BASED, (2) REGIONAL EDUCATIONAL LABORATORIES, (3) STATE DEPARTMENTS OF EDUCATION, (4) LOCAL SCHOOL SYSTEMS, AND (5) PRIVATE TESTING AND RESEARCH ORGANIZATIONS. FOUR PROBLEM AREAS RELATED TO EACH SETTING ARE DEALT WITH BY N.L.…
Sensory Aids Research Project - Clarke School for the Deaf.
ERIC Educational Resources Information Center
Boothroyd, Arthur
Described is a program of research into sensory aids for the deaf, emphasizing research on factors involved in the effective use of sensory aids rather than evaluation of particular devices. Aspects of the program are the development of a programed testing and training unit, the control of fundamental voice frequency using visual feedback, and…
Research notes : polymer modified emulsions for chip seals.
DOT National Transportation Integrated Search
1991-12-01
The Research Unit is conducting a study of chip seal emulsions using asphalts containing polymers on test sections that were built in 1987 on Oregon Route 22 near Stayton in Marion County. A commonly used emulsion in the 1987 OSHD Specifications for ...
ERIC Educational Resources Information Center
Hogerton, John F.
This publication is one of a series of information booklets for the general public published by the United States Atomic Energy Commission. Among the topics discussed are: How Reactors Work; Reactor Design; Research, Teaching, and Materials Testing; Reactors (Research, Teaching and Materials); Production Reactors; Reactors for Electric Power…
Lavery, James V; McDonald, Michael; Meslin, Eric M
2005-01-01
Canada and the United States share the world's largest trade partnership and an increasing concern about divergent regulatory approaches to common industries. Canadian research institutes receive more research funding from the U.S. National Institutes of Health than any other country, much of it to fund multi-centre and collaborative research between the two countries. Because of these close economic and research ties, and the extensive similarities between the two countries in the review and oversight of ethics in human subjects research, we propose that Canada would be an ideal country for a pilot-test of the feasibility of "equivalent protections," a U.S. regulation that permits comparison of protections for human subjects between institutions in the two countries. The "equivalent protections" has been advocated by various bodies in the United States as a potentially beneficial mechanism for improving oversight of foreign trials. As well, we argue that "equivalent protections" could prove to be valuable for Canada in five specific ways: (1) by potentially reducing administrative burden on Canadian research institutions administering U.S. federal research funding; (2) by creating symbolic value of an explicit recognition by the United States that procedures normally followed for the protection of human subjects in Canadian research institutions are at least equivalent to those provided by the U.S. regulations; (3) by lowering the opportunity cost of investing in research in Canada; (4) by affording Canada an opportunity to enhance its leadership role in international research by offering an alternative to the U.S. regulatory model for the protection of human subjects; and (5) by providing a model for how the idea of equivalent protections might be addressed for research funded by Canadian agencies but conducted in other countries.
Annual health examination program, Ames Research Center
NASA Technical Reports Server (NTRS)
Hughes, L.; Ladou, J.
1975-01-01
A cost analysis of a low-volume multiphasic health testing program is presented. The results indicate that unit costs are similar to those of high-volume automated programs. The comparability in unit cost appears to result from the savings in personnel and space requirements of the smaller program as compared with the larger ones.
Unit: The Australian Scene, Inspection Pack, National Trial Print.
ERIC Educational Resources Information Center
Australian Science Education Project, Toorak, Victoria.
As a part of the interim unit materials in the series produced by the Australian Science Education Project, this teachers' guide is composed of five sections: an introduction to nature in the balance, tests, excursion activities, options, and research activities. Options are under the headings: The Changing Face, Australian Soils, Distribution of…
Operational Based Vision Assessment Research: Depth Perception
2014-11-01
13-072 5e. TASK NUMBER 5f. WORK UNIT NUMBER 7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) USAF School of Aerospace Medicine...Aeromedical Research Department 2510 Fifth St. Wright-Patterson AFB, OH 45433-7913 8. PERFORMING ORGANIZATION REPORT NUMBER AFRL-SA-WP-JA-2014...tests are tests of stereopsis, such as the AFVT and AO Vectograph. Others evaluate depth perception with stereo as a contributor to performance , such
ERIC Educational Resources Information Center
Dutro, Elizabeth; Selland, Makenzie
2012-01-01
A significant body of research articulates concerns about the current emphasis on high-stakes testing as the primary lever of education reform in the United States. However, relatively little research has focused on how children make sense of the assessment policies in which they are centrally located. In this article, we share analyses of…
Developing Achievement Test: A Research for Assessment of 5th Grade Biology Subject
ERIC Educational Resources Information Center
Sener, Nilay; Tas, Erol
2017-01-01
The purpose of this study is to prepare a multiple-choice achievement test with high reliability and validity for the "Let's Solve the Puzzle of Our Body" unit. For this purpose, a multiple choice achievement test consisting of 46 items was applied to 178 fifth grade students in total. As a result of the test and material analysis…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
DOE Office of Scientific and Technical Information (OSTI.GOV)
Tenent, Robert C.
2017-12-06
NREL will conduct durability testing of Sage Electrochromics dynamic windows products using American Society for Testing and Materials (ASTM) standard methods and drive parameters as defined by Sage. Window units will be tested and standard analysis performed. Data will be summarized and reported back to Sage at the end of the testing period.
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
2003-08-18
KENNEDY SPACE CENTER, FLA. - Researchers conduct underwater acoustic research in the Launch Complex 39 turn basin. Several government agencies, including NASA, NOAA, the Navy, the Coast Guard, and the Florida Fish and Wildlife Commission are involved in the testing. The research involves demonstrations of passive and active sensor technologies, with applications in fields ranging from marine biological research to homeland security. The work is also serving as a pilot project to assess the cooperation between the agencies involved. Equipment under development includes a passive acoustic monitor developed by NASA’s Jet Propulsion Laboratory, and mobile robotic sensors from the Navy’s Mobile Diving and Salvage Unit.
[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
Research pilot John Griffith leaning out of the hatch on the X-1 #2
NASA Technical Reports Server (NTRS)
1950-01-01
In this photo, NACA research pilot John Griffith is leaning out the hatch of the X-1 #2. Surrounding him (left to right) are Dick Payne, Eddie Edwards, and maintenance chief Clyde Bailey. John Griffith became a research pilot at the National Advisory Committee for Aeronautics's Muroc Flight Test Unit in August of 1949, shortly before the NACA unit became the High-Speed Flight Research Station (now, NASA's Dryden Flight Research Center at Edwards, California). He flew the early experimental airplanes-the X-1, X-4, and D-558-1 and -2-flying the X-1 nine times, the X-4 three times, the D-558-1 fifteen times, and the D-558-2 nine times. He reached his top speed in the X-1 on 26 May 1950 when he achieved a speed of Mach 1.20. He was the first NACA pilot to fly the X-4. He left the NACA in 1950 to fly for Chance Vought in the F7U Cutlass. He then flew for United Airlines and for Westinghouse, where he became the Chief Engineering Test Pilot. He went on to work for the Federal Aviation Administration, assisting in the development of a supersonic transport before funding for that project ended. He then returned to United Airlines and worked as a flight instructor. John grew up in Homewood, Illinois, and attended Thornton Township Junior College in Harvey, Illinois, where he graduated as valedictorian in pre-engineering. He entered the Army Air Corps in November 1941, serving in the South Pacific during the Second World War that started soon after he joined. In 1942 and 1943 he flew 189 missions in the P-40 in New Guinea and was awarded two Distinguished Flying Crosses and four air medals. In October 1946, he left the service and studied aeronautical engineering at Purdue University, graduating with honors. He then joined the NACA at the Lewis Flight Propulsion Laboratory in Cleveland, Ohio (today's Glenn Research Center), where he participated in ramjet testing and icing research until moving to Muroc. Following his distinguished career, he retired to Penn Valley, California.
Vehicle postmortem and data analysis of a passenger rail car collision test
DOT National Transportation Integrated Search
2002-04-23
There is an ongoing research program in the United States to investigate and improve rail equipment crashworthiness. As part of this effort, a series of full-scale rail vehicle crash tests are being performed to investigate the crash response of exis...
Accelerated Leach Testing of GLASS: ALTGLASS Version 3.0
DOE Office of Scientific and Technical Information (OSTI.GOV)
Trivelpiece, Cory L.; Jantzen, Carol M.; Crawford, Charles L.
The Accelerated Leach Testing of GLASS (ALTGLASS) database is a collection of data from short- and long-term product consistency tests (PCT, ASTM C1285 A and B) on high level waste (HLW) as well as low activity waste (LAW) glasses. The database provides both U.S. and international researchers with an archive of experimental data for the purpose of studying, modeling, or validating existing models of nuclear waste glass corrosion. The ALTGLASS database is maintained and updated by researchers at the Savannah River National Laboratory (SRNL). This newest version, ALTGLASS Version 3.0, has been updated with an additional 503 rows of datamore » representing PCT results from corrosion experiments conducted in the United States by the Savannah River National Laboratory, Pacific Northwest National Laboratory, Argonne National Laboratory, and the Vitreous State Laboratory (SRNL, PNNL, ANL, VSL, respectively) as well as the National Nuclear Laboratory (NNL) in the United Kingdom.« less
NASA Technical Reports Server (NTRS)
Kovalkeski, Scott D.; Patterson, Michael J.; Soulas, George C.
2001-01-01
Charge control on the International Space Station (ISS) is currently being provided by two plasma contactor units (PCUs). The plasma contactor includes a hollow cathode assembly (HCA), power processing unit and Xe gas feed system. The hollow cathode assemblies in use in the ISS plasma contactors were designed and fabricated at the NASA Glenn Research Center. Prequalification testing of development HCAs as well as acceptance testing of the flight HCAs is presented. Integration of the HCAs into the Boeing North America built PCU and acceptance testing of the PCU are summarized in this paper. Finally, data from the two on-orbit PCUs is presented.
Advanced Plant Habitat Flight Unit #1
2017-07-24
Inside a laboratory in the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, a quality technician checks the hardware for the Advanced Plant Habitat flight unit. The flight unit is an exact replica of the APH that was delivered to the International Space Station. Validation tests and post-delivery checkout was performed to prepare for space station in-orbit APH activities. The flight unit will be moved to the International Space Station Environmental Simulator to begin an experiment verification test for the science that will fly on the first mission, PH-01. Developed by NASA and ORBITEC of Madison, Wisconsin, the APH is the largest plant chamber built for the agency. It is a fully automated plant growth facility that will be used to conduct bioscience research on the space station.
Advanced Plant Habitat Flight Unit #1
2017-07-24
Inside a laboratory in the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, quality technicians check the hardware for the Advanced Plant Habitat flight unit. The flight unit is an exact replica of the APH that was delivered to the International Space Station. Validation tests and post-delivery checkout was performed to prepare for space station in-orbit APH activities. The flight unit will be moved to the International Space Station Environmental Simulator to begin an experiment verification test for the science that will fly on the first mission, PH-01. Developed by NASA and ORBITEC of Madison, Wisconsin, the APH is the largest plant chamber built for the agency. It is a fully automated plant growth facility that will be used to conduct bioscience research on the space station.
Advanced Plant Habitat Flight Unit #1
2017-07-24
Inside a laboratory in the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, quality technicians check components of the hardware for the Advanced Plant Habitat flight unit. The flight unit is an exact replica of the APH that was delivered to the International Space Station. Validation tests and post-delivery checkout was performed to prepare for space station in-orbit APH activities. The flight unit will be moved to the International Space Station Environmental Simulator to begin an experiment verification test for the science that will fly on the first mission, PH-01. Developed by NASA and ORBITEC of Madison, Wisconsin, the APH is the largest plant chamber built for the agency. It is a fully automated plant growth facility that will be used to conduct bioscience research on the space station.
Advanced Plant Habitat Flight Unit #1
2017-07-24
Inside a laboratory in the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, quality technicians check the hardware for the Advanced Plant Habitat flight unit. The flight unit is an exact replica of the APH that was delivered to the International Space Station. Validation tests and post-delivery checkout was performed to prepare for space station in-orbit APH activities. The flight unit will be moved to the International Space Station Environment Simulator to begin an experiment verification test for the science that will fly on the first mission, PH-01. Developed by NASA and ORBITEC of Madison, Wisconsin, the APH is the largest plant chamber built for the agency. It is a fully automated plant growth facility that will be used to conduct bioscience research on the space station.
Advanced Plant Habitat Flight Unit #1
2017-07-24
Inside a laboratory in the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, a quality technician checks the control panel on hardware for the Advanced Plant Habitat flight unit. The flight unit is an exact replica of the APH that was delivered to the International Space Station. Validation tests and post-delivery checkout was performed to prepare for space station in-orbit APH activities. The flight unit will be moved to the International Space Station Environmental Simulator to begin an experiment verification test for the science that will fly on the first mission, PH-01. Developed by NASA and ORBITEC of Madison, Wisconsin, the APH is the largest plant chamber built for the agency. It is a fully automated plant growth facility that will be used to conduct bioscience research on the space station.
NASA Astrophysics Data System (ADS)
Slykhuis, David A.
This research project examined the efficacy of an online microcomputer-based laboratory based (MBL) physics unit. One hundred and fifty physics students from five high schools in North Carolina were divided into online and classroom groups. The classroom group completed the MBL unit in small groups with assistance from their teachers. The online groups completed the MBL unit in small groups using a website designed for this project for guidance. Pre- and post-unit content specific tests and surveys were given. Statistical analysis of the content tests showed significant development of conceptual understanding by the online group over the course of the unit. There was not a significant difference between the classroom and online group with relation to the amount of conceptual understanding developed. Correlations with post-test achievement showed that pre-test scores and math background were the most significant correlates with success. Computer related variables, such as computer comfort and online access, were only mildly correlated with the online group. Students' views about the nature of physics were not well developed prior to the unit and did not significantly change over the course of the unit. Examination of the students' physics conceptions after instruction revealed common alternative conceptions such as confusing position and velocity variables and incorrect interpretations of graphical features such as slope.
Effect of Vocabulary Test Preparation on Low-Income Black Middle School Students' Reading Scores
ERIC Educational Resources Information Center
Mitchell, Ingrid; Nistor, Nicolae; Baltes, Beate; Brown, Michelle
2016-01-01
Black middle school students in the United States continue to perform poorly on standardized reading achievement tests in comparison to other racial and ethnic groups. The purpose of this research study was to examine the effectiveness of a vocabulary-focused test preparation program for Black middle school students. The theoretical framework…
Objective and Subjective Knowledge and HIV Testing among College Students
ERIC Educational Resources Information Center
Hou, Su-I
2004-01-01
Little research has been conducted on the knowledge domain specifically related to HIV testing among college students. Students (age 18-24) were recruited from a major university in the southeastern United States to participate in a Web-based survey during spring 2003 (N=440). About 21% of the students reported previous voluntary HIV tests.…
Adapting Educational Measurement to the Demands of Test-Based Accountability
ERIC Educational Resources Information Center
Koretz, Daniel
2015-01-01
Accountability has become a primary function of large-scale testing in the United States. The pressure on educators to raise scores is vastly greater than it was several decades ago. Research has shown that high-stakes testing can generate behavioral responses that inflate scores, often severely. I argue that because of these responses, using…
Visual Signaling in a High-Search Virtual World-Based Assessment: A SAVE Science Design Study
ERIC Educational Resources Information Center
Nelson, Brian C.; Kim, Younsu; Slack, Kent
2016-01-01
Education policy in the United States centers K-12 assessment efforts primarily on standardized tests. However, such tests may not provide an accurate and reliable representation of what students understand about the complexity of science. Research indicates that students tend to pass science tests, even if they do not understand the concepts…
DOE Office of Scientific and Technical Information (OSTI.GOV)
Gregson, Michael Warren; Mo, Tin; Sorenson, Ken Bryce
The authors provide a detailed overview of an on-going, multinational test program that is developing aerosol data for some spent fuel sabotage scenarios on spent fuel transport and storage casks. Experiments are being performed to quantify the aerosolized materials plus volatilized fission products generated from actual spent fuel and surrogate material test rods, due to impact by a high-energy-density device. The program participants in the United States plus Germany, France and the United Kingdom, part of the international Working Group for Sabotage Concerns of Transport and Storage Casks (WGSTSC) have strongly supported and coordinated this research program. Sandia National Laboratoriesmore » has the lead role for conducting this research program; test program support is provided by both the US Department of Energy and the US Nuclear Regulatory Commission. The authors provide a summary of the overall, multiphase test design and a description of all explosive containment and aerosol collection test components used. They focus on the recently initiated tests on 'surrogate' spent fuel, unirradiated depleted uranium oxide and forthcoming actual spent fuel tests, and briefly summarize similar results from completed surrogate tests that used non-radioactive, sintered cerium oxide ceramic pellets in test rods.« less
Development Status of the Fission Power System Technology Demonstration Unit
NASA Technical Reports Server (NTRS)
Briggs, Maxwell H.; Gibson, Marc A.; Geng, Steven M.; Pearson, Jon Boise; Godfoy, Thomas
2012-01-01
This paper summarizes the progress that has been made in the development of the Fission Power System Technology Demonstration Unit (TDU). The reactor simulator core and Annular Linear Induction Pump have been fabricated and assembled into a test loop at the NASA Marshall Space Flight Center. A 12 kWe Power Conversion Unit (PCU) is being developed consisting of two 6 kWe free-piston Stirling engines. The two 6 kWe engines have been fabricated by Sunpower Inc. and are currently being tested separately prior to integration into the PCU. The Facility Cooling System (FCS) used to reject convertor waste heat has been assembled and tested at the NASA Glenn Research Center (GRC). The structural elements, including a Buildup Assembly Platform (BAP) and Upper Truss Structure (UTS) have been fabricated, and will be used to test cold-end components in thermal vacuum prior to TDU testing. Once all components have been fully tested at the subsystem level, they will be assembled into an end-to-end system and tested in thermal vacuum at GRC.
Development Status of the Fission Power System Technology Demonstration Unit
NASA Technical Reports Server (NTRS)
Briggs, Maxwell H.; Gibson, Marc A.; Geng, Steven M; Pearson, Jon Boise; Godfroy, Thomas
2012-01-01
This paper summarizes the progress that has been made in the development of the Fission Power System Technology Demonstration Unit (TDU). The reactor simulator core and Annular Linear Induction Pump have been fabricated and assembled into a test loop at the NASA Marshall Space Flight Center. A 12 kWe Power Conversion Unit (PCU) is being developed consisting of two 6 kWe free-piston Stirling engines. The two 6 kWe engines have been fabricated by Sunpower Inc. and are currently being tested separately prior to integration into the PCU. The Facility Cooling System (FCS) used to reject convertor waste heat has been assembled and tested at the NASA Glenn Research Center (GRC). The structural elements, including a Buildup Assembly Platform (BAP) and Upper Truss Structure (UTS) have been fabricated, and will be used to test cold-end components in thermal vacuum prior to TDU testing. Once all components have been fully tested at the subsystem level, they will be assembled into an end-to-end system and tested in thermal vacuum at NASA GRC.
Research and technology highlights, 1993
NASA Technical Reports Server (NTRS)
1994-01-01
This report contains highlights of the major accomplishments and applications that have been made by Langley researchers and by our university and industry colleagues during the past year. The highlights illustrate both the broad range of the research and technology activities supported by NASA Langley Research Center and the contributions of this work toward maintaining United States leadership in aeronautics and space research. This report also describes some of the Center's most important research and testing facilities.
2011-02-01
Research Report Documentation Page Form ApprovedOMB No. 0704-0188 Public reporting burden for the collection of information is estimated to average...REPORT DATE FEB 2011 2. REPORT TYPE N/A 3. DATES COVERED - 4. TITLE AND SUBTITLE Hydraulic Tomography and High-Resolution Slug Testing to...NUMBER 5f. WORK UNIT NUMBER 7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) University of Kansas Center for Research 8. PERFORMING
The Causal Effect of Education on Health: Evidence from the United Kingdom
ERIC Educational Resources Information Center
Silles, Mary A.
2009-01-01
Numerous economic studies have shown a strong positive correlation between health and years of schooling. The question at the centre of this research is whether the correlation between health and education represents a causal relation. This paper uses changes in compulsory schooling laws in the United Kingdom to test this hypothesis. Multiple…
40 CFR 71.24 - Permit applications.
Code of Federal Regulations, 2013 CFR
2013-07-01
... end of the post-reduction year. (4) If a source test will be the supporting basis for establishing post-reduction emissions for one or more emissions units in the early reductions source, the test... to the appropriate State agency; to the EPA Emission Standards Division, Mail Drop 13, Research...
40 CFR 71.24 - Permit applications.
Code of Federal Regulations, 2014 CFR
2014-07-01
... end of the post-reduction year. (4) If a source test will be the supporting basis for establishing post-reduction emissions for one or more emissions units in the early reductions source, the test... to the appropriate State agency; to the EPA Emission Standards Division, Mail Drop 13, Research...
40 CFR 71.24 - Permit applications.
Code of Federal Regulations, 2010 CFR
2010-07-01
... end of the post-reduction year. (4) If a source test will be the supporting basis for establishing post-reduction emissions for one or more emissions units in the early reductions source, the test... to the appropriate State agency; to the EPA Emission Standards Division, Mail Drop 13, Research...
40 CFR 71.24 - Permit applications.
Code of Federal Regulations, 2011 CFR
2011-07-01
... end of the post-reduction year. (4) If a source test will be the supporting basis for establishing post-reduction emissions for one or more emissions units in the early reductions source, the test... to the appropriate State agency; to the EPA Emission Standards Division, Mail Drop 13, Research...
40 CFR 71.24 - Permit applications.
Code of Federal Regulations, 2012 CFR
2012-07-01
... end of the post-reduction year. (4) If a source test will be the supporting basis for establishing post-reduction emissions for one or more emissions units in the early reductions source, the test... to the appropriate State agency; to the EPA Emission Standards Division, Mail Drop 13, Research...
Spray drift reduction evaluations of spray nozzles using a standardized testing protocol
USDA-ARS?s Scientific Manuscript database
The development and testing of drift reduction technologies has come to the forefront of application research in the past few years in the United States. Drift reduction technologies (DRTs) can be spray nozzles, sprayer modifications, spray delivery assistance, spray property modifiers (adjuvants),...
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
Conducting qualitative research within Clinical Trials Units: avoiding potential pitfalls.
Cooper, Cindy; O'Cathain, Alicia; Hind, Danny; Adamson, Joy; Lawton, Julia; Baird, Wendy
2014-07-01
The value of using qualitative research within or alongside randomised controlled trials (RCTs) is becoming more widely accepted. Qualitative research may be conducted concurrently with pilot or full RCTs to understand the feasibility and acceptability of the interventions being tested, or to improve trial conduct. Clinical Trials Units (CTUs) in the United Kingdom (UK) manage large numbers of RCTs and, increasingly, manage the qualitative research or collaborate with qualitative researchers external to the CTU. CTUs are beginning to explicitly manage the process, for example, through the use of standard operating procedures for designing and implementing qualitative research with trials. We reviewed the experiences of two UK Clinical Research Collaboration (UKCRC) registered CTUs of conducting qualitative research concurrently with RCTs. Drawing on experiences gained from 15 studies, we identify the potential for the qualitative research to undermine the successful completion or scientific integrity of RCTs. We show that potential problems can arise from feedback of interim or final qualitative findings to members of the trial team or beyond, in particular reporting qualitative findings whilst the trial is on-going. The problems include: We make recommendations for improving the management of qualitative research within CTUs. Copyright © 2014. Published by Elsevier Inc.
Pluta, Dominika; Tokarski, Miron; Karpiewska, Anna; Dobosz, Tadeusz
2017-01-01
Molecular Techniques Unit at the Department of Forensic Medicine, Wroclaw Medical University has been operating since December 2003. Soon it will be 15 years since its establishment. This anniversary become an inspiration to write down the story of this institution whose origins illustrate the immense changes that have taken place in forensic genetics. The aim of our work was also to consolidate the professional achievements of Professor Tadeusz Dobosz, chief of the Unit, one of the pioneers of introducing DNA testing technology into Polish forensic medicine. The most important achievements of the Unit include participation in two EU research projects, the development of a non-destructive method of extraction of genetic material, research in field of gene therapy and certification of the Laboratory of the Molecular Techniques Unit by the Polish Accreditation Center (PCA) confirming compliance with the requirements of the PN-EN ISO/IEC 17025:2005 standard.
ERIC Educational Resources Information Center
Duke, Benjamin C., Ed.
1963-01-01
The primary purpose of this project was to compile, translate, and publish educational media research material from the major Asian countries and to make that information available in the United States. Educational media research and experimentation is interpreted to include experimental programming, testing, evaluation, and use of all the newer…
Error detection and correction unit with built-in self-test capability for spacecraft applications
NASA Technical Reports Server (NTRS)
Timoc, Constantin
1990-01-01
The objective of this project was to research and develop a 32-bit single chip Error Detection and Correction unit capable of correcting all single bit errors and detecting all double bit errors in the memory systems of a spacecraft. We designed the 32-bit EDAC (Error Detection and Correction unit) based on a modified Hamming code and according to the design specifications and performance requirements. We constructed a laboratory prototype (breadboard) which was converted into a fault simulator. The correctness of the design was verified on the breadboard using an exhaustive set of test cases. A logic diagram of the EDAC was delivered to JPL Section 514 on 4 Oct. 1988.
Advanced Stirling Convertor Testing at GRC
NASA Technical Reports Server (NTRS)
Schifer, Nick; Oriti, Salvatore M.
2013-01-01
NASA Glenn Research Center (GRC) has been supporting development of the Advanced Stirling Radioisotope Generator (ASRG) since 2006. A key element of the ASRG project is providing life, reliability, and performance testing of the Advanced Stirling Convertor (ASC). The latest version of the ASC, deemed ASC-E3, is of a design identical to the forthcoming flight convertors. The first pair of ASC-E3 units was delivered in December 2012. GRC has begun the process of adding these units to the catalog of ongoing Stirling convertor operation. This process includes performance verification, which examines the data from various tests to validate the convertors performance to the product specification.
Advanced Stirling Radioisotope Generator Engineering Unit 2 (ASRG EU2) Final Assembly
NASA Technical Reports Server (NTRS)
Oriti, Salvatore M.
2015-01-01
NASA Glenn Research Center (GRC) has recently completed the assembly of a unique Stirling generator test article for laboratory experimentation. Under the Advanced Stirling Radioisotope Generator (ASRG) flight development contract, NASA GRC initiated a task to design and fabricate a flight-like generator for in-house testing. This test article was given the name ASRG Engineering Unit 2 (EU2) as it was effectively the second engineering unit to be built within the ASRG project. The intent of the test article was to duplicate Lockheed Martin's qualification unit ASRG design as much as possible to enable system-level tests not previously possible at GRC. After the cancellation of the ASRG flight development project, the decision was made to continue the EU2 build, and make use of a portion of the hardware from the flight development project. GRC and Lockheed Martin engineers collaborated to develop assembly procedures, leveraging the valuable knowledge gathered by Lockheed Martin during the ASRG development contract. The ASRG EU2 was then assembled per these procedures at GRC with Lockheed Martin engineers on site. The assembly was completed in August 2014. This paper details the components that were used for the assembly, and the assembly process itself.
Test - Apollo-Soyuz Test Project (ASTP)
1974-07-01
S74-24671 (10 July 1974) --- Three Apollo-Soyuz Test Project (ASTP) engineers look over a Soyuz spacecraft docking system prior to an ASTP docking mechanism fitness test conducted in Building 13 at the Johnson Space Center (JSC). They are (left to right) Robert White, Vladimir Syromyatnikov and Yevgeniy Bobrov. White is the American chairman of ASTP Working Group Number 3, and Syromyatnikov is his Soviet counterpart. This working group is concerned with ASTP docking problems and procedures. White is with JSC's Spacecraft Design Division. Syromyatnikov is senior researcher of the Soviet State Research Institute of Machine Building. Bobrov is a junior researcher with the Institute of Machine Building. The joint United States - USSR ASTP docking mission in Earth orbit is scheduled for the summer of 1975.
Chinese children's early knowledge about writing.
Zhang, Lan; Yin, Li; Treiman, Rebecca
2017-09-01
Much research on literacy development has focused on learners of alphabetic writing systems. Researchers have hypothesized that children learn about the formal characteristics of writing before they learn about the relations between units of writing and units of speech. We tested this hypothesis by examining young Chinese children's understanding of writing. Mandarin-speaking 2- to 5-year-olds completed a graphic task, which tapped their knowledge about the formal characteristics of writing, and a phonological task, which tapped their knowledge about the correspondence between Chinese characters and syllables. The 3- to 5-year-olds performed better on the graphic task than the phonological task, indicating that learning how writing appears visually begins earlier than learning that writing corresponds to linguistic units, even in a writing system in which written units correspond to syllables. Statement of contribution What is already known on this subject? Learning about writing's visual form, how it looks, is an important part of emergent literacy. Knowledge of how writing symbolizes linguistic units may emerge later. What does this study add? We test the hypothesis that Chinese children learn about writing's visual form earlier than its symbolic nature. Chinese 3- to 5- year-olds know more about visual features than character-syllable links. Results show learning of the visual appearance of a notation system is developmentally precocious. © 2016 The British Psychological Society.
1979-09-01
DIVISION" TEST Edwin R. Smutz ARI FIELD UNIT AT FORT HOOD, TEXAS C/ C,; U. S. Army Research Institute for the Behavioral and Social Sciences I Ir September... SCIENCES A Field Operating Agency under the Jurisdiction of the Deputy Chief of Staff for Personnel WILLIAM L. HAUSERi JOSEPH ZEIDNER Colonel, U S Army...Behavioral and Social Sciences . fj The findings in this report are not to be construed as an official Departmeint of the Army Position, unions so
Credit USAF, ca. 1945. Original housed in the Muroc Flight ...
Credit USAF, ca. 1945. Original housed in the Muroc Flight Test Base, Unit History, 1 September 1942 - 30 June 1945. Alfred F. Simpson Historical Research Agency. United States Air Force. Maxwell AFB, Alabama. View looks north at a hutment typical of several structures erected at the Muroc Flight Test Base (North Base) ca. 1943-1945. Similar structures, Buildings T-61, T-62 and T-63, lie in the distance behind T-40 - Edwards Air Force Base, North Base, Barracks T-40, Second & A Streets, Boron, Kern County, CA
1951-02-01
they were ob- served at a given pressure drop in "cold" testing with water or unreacted propellants. heat-transfer considerations and the location of... water as a coolant in the main chamber. The Winkler injector was used.on a test unit developing a thrust of 220 lb and an exhaust ve- locity of 6370 ft... water . Provision was made for an igniter in the center of the injector. The relatively high performance reported for this unit does not seem to be
Effects of Blended Instructional Models on Math Performance
ERIC Educational Resources Information Center
Bottge, Brian A.; Ma, Xin; Gassaway, Linda; Toland, Michael D.; Butler, Mark; Cho, Sun-Joo
2014-01-01
A pretest-posttest cluster-randomized trial involving 31 middle schools and 335 students with disabilities tested the effects of combining explicit and anchored instruction on fraction computation and problem solving. Results of standardized and researcher-developed tests showed that students who were taught with the blended units outscored…
The National Research Council of the United States National Academies of Science has recently released a document outlining a long-range vision and strategy for transforming toxicity testing from largely whole animal-based testing to one based on in vitro assays. “Toxicity Testin...
Shadow Education, American Style: Test Preparation, the SAT and College Enrollment
ERIC Educational Resources Information Center
Buchmann, Claudia; Condron, Dennis J.; Roscigno, Vincent J.
2010-01-01
Cross-national research finds that "shadow education"--educational activities outside of formal schooling--tends to confer advantages on already privileged students. Shadow education in the United States, such as test prep for college entrance exams, has received considerably less attention. Drawing on the National Education Longitudinal…
42 CFR 84.308 - Additional testing.
Code of Federal Regulations, 2013 CFR
2013-10-01
... §§ 84.304 through 84.307. These units will be evaluated for fire and explosion hazards using the tests....S.C. 552(a) and 1 CFR Part 51. All approved material is available for inspection at NIOSH, National Personal Protection Technology Laboratory (NPPTL), Bruceton Research Center, 626 Cochrans Mill Road...
42 CFR 84.308 - Additional testing.
Code of Federal Regulations, 2014 CFR
2014-10-01
... §§ 84.304 through 84.307. These units will be evaluated for fire and explosion hazards using the tests....S.C. 552(a) and 1 CFR Part 51. All approved material is available for inspection at NIOSH, National Personal Protection Technology Laboratory (NPPTL), Bruceton Research Center, 626 Cochrans Mill Road...
42 CFR 84.308 - Additional testing.
Code of Federal Regulations, 2012 CFR
2012-10-01
... §§ 84.304 through 84.307. These units will be evaluated for fire and explosion hazards using the tests....S.C. 552(a) and 1 CFR Part 51. All approved material is available for inspection at NIOSH, National Personal Protection Technology Laboratory (NPPTL), Bruceton Research Center, 626 Cochrans Mill Road...
Field test on the treatment of source zone chloroethenes using emulsified zerovalent iron
This talk summarizes the research activities currently underway at the Solid Waste Management Unit 45 (Site 45), Marine Corps Recruit Depot, Parris Island, South Carolina. A pilot field test was initiated in 2005 at this site to evaluate the effectiveness of nanoscale emulsified...
Medical Practice Makes Perfect
NASA Technical Reports Server (NTRS)
1998-01-01
Cedaron Medical Inc., was founded in 1990 as a result of a NASA SBIR (Small Business Innovative Research) grant from Johnson Space Center to develop a Hand Testing and Exercise Unit for use in space. From that research came Dexter, a comprehensive workstation that creates a paperless environment for medical data management.
Superfund, Hedonics, and the Scales of Environmental Justice
NASA Astrophysics Data System (ADS)
Noonan, Douglas S.; Turaga, Rama Mohana R.; Baden, Brett M.
2009-11-01
Environmental justice (EJ) is prominent in environmental policy, yet EJ research is plagued by debates over methodological procedures. A well-established economic approach, the hedonic price method, can offer guidance on one contentious aspect of EJ research: the choice of the spatial unit of analysis. Environmental managers charged with preventing or remedying inequities grapple with these framing problems. This article reviews the theoretical and empirical literature on unit choice in EJ, as well as research employing hedonic pricing to assess the spatial extent of hazardous waste site impacts. The insights from hedonics are demonstrated in a series of EJ analyses for a national inventory of Superfund sites. First, as evidence of injustice exhibits substantial sensitivity to the choice of spatial unit, hedonics suggests some units conform better to Superfund impacts than others. Second, hedonic estimates for a particular site can inform the design of appropriate tests of environmental inequity for that site. Implications for policymakers and practitioners of EJ analyses are discussed.
Superfund, hedonics, and the scales of environmental justice.
Noonan, Douglas S; Turaga, Rama Mohana R; Baden, Brett M
2009-11-01
Environmental justice (EJ) is prominent in environmental policy, yet EJ research is plagued by debates over methodological procedures. A well-established economic approach, the hedonic price method, can offer guidance on one contentious aspect of EJ research: the choice of the spatial unit of analysis. Environmental managers charged with preventing or remedying inequities grapple with these framing problems. This article reviews the theoretical and empirical literature on unit choice in EJ, as well as research employing hedonic pricing to assess the spatial extent of hazardous waste site impacts. The insights from hedonics are demonstrated in a series of EJ analyses for a national inventory of Superfund sites. First, as evidence of injustice exhibits substantial sensitivity to the choice of spatial unit, hedonics suggests some units conform better to Superfund impacts than others. Second, hedonic estimates for a particular site can inform the design of appropriate tests of environmental inequity for that site. Implications for policymakers and practitioners of EJ analyses are discussed.
Sisan, Mo'men; Rayan, Ahmad; Elmorsy, Soha; Elyan, Hamza; Salahat, Mosab
2018-03-01
Extravasation and infiltration are among the most common intravenous therapy complications. For noncytotoxic agents, the incidence of extravasation remains unknown. There has been little research into extravasation due to ethical considerations limiting controlled research; most evidences are based on small, uncontrolled trials or case reports. The purpose of this study was to assess the knowledge level regarding noncytotoxic medications extravasation and its associated factors among staff nurses.A descriptive correlational design using self-administered questionnaire was employed. A convenience sample of 387 nurses completed a questionnaire about noncytotoxic medication extravasation. Statistical Package for Social Sciences version 21 was used to analyze data by applying the chi-square test, t test, and the Mann-Whitney test to assess the knowledge difference between open and closed units' nurses.The results indicate that only 19.6% of nurses have a good knowledge about noncytotoxic medications extravasation. There was consistently poor staff knowledge regarding noncytotoxic medications extravasation. Although the closed units' nurses reported relatively higher level of knowledge than open units' nurses, their level of knowledge still inadequate. Health care organizations must consider developing specific policies regarding extravasation. Closed and open units' nurses should be enrolled in special education programs to improve their level of knowledge regarding noncytotoxic medication extravasation. Copyright © 2017 Society for Vascular Nursing, Inc. Published by Elsevier Inc. All rights reserved.
Effect of accuracy of wind power prediction on power system operator
NASA Technical Reports Server (NTRS)
Schlueter, R. A.; Sigari, G.; Costi, T.
1985-01-01
This research project proposed a modified unit commitment that schedules connection and disconnection of generating units in response to load. A modified generation control is also proposed that controls steam units under automatic generation control, fast responding diesels, gas turbines and hydro units under a feedforward control, and wind turbine array output under a closed loop array control. This modified generation control and unit commitment require prediction of trend wind power variation one hour ahead and the prediction of error in this trend wind power prediction one half hour ahead. An improved meter for predicting trend wind speed variation is developed. Methods for accurately simulating the wind array power from a limited number of wind speed prediction records was developed. Finally, two methods for predicting the error in the trend wind power prediction were developed. This research provides a foundation for testing and evaluating the modified unit commitment and generation control that was developed to maintain operating reliability at a greatly reduced overall production cost for utilities with wind generation capacity.
Initial Evaluation of Acoustic Emission SHM of PRSEUS Multi-bay Box Tests
NASA Technical Reports Server (NTRS)
Horne, Michael R.; Madaras, Eric I.
2016-01-01
A series of tests of the Pultruded Rod Stitched Efficient Unitized Structure (PRSEUS) HWB Multi-Bay Test Article were conducted during the second quarter of 2015 at NASA Langley Research Center (LaRC) in the Combined Loads Test facility (COLTS). This report documents the Acoustic Emission (AE) data collected during those tests along with an initial analysis of the data. A more detailed analysis will be presented in future publications.
ERIC Educational Resources Information Center
Keenan, Janice M.; Betjemann, Rebecca S.; Olson, Richard K.
2008-01-01
Comprehension tests are often used interchangeably, suggesting an implicit assumption that they are all measuring the same thing. We examine the validity of this assumption by comparing some of the most popular reading comprehension measures used in research and clinical practice in the United States: the Gray Oral Reading Test (GORT), the two…
C. Dana Nelson; W.A. Powell; C.A. Maynard; K.M. Baier; A. Newhouse; S.A. Merkle; C.J. Nairn; L. Kong; J.E. Carlson; C. Addo-Quaye; M.E. Staton; F.V. Hebard; L.L. Georgi; A.G. Abbott; B.A. Olukolu; T. Zhebentyayeva
2013-01-01
The Forest Health Initiative (FHI) was developed and implemented to test the hypothesis that a coordinated effort in biotechnology research could lead to resistant trees capable of restoring a species in a relevant time frame. As a test case, the American chestnut (Castanea dentata) was chosen for study as it is an iconic forest tree species in the eastern United...
2017-07-01
ESRI (Nature Conservancy and Environmental Systems Research Institute). 1994. Field Methods . In Field Methods for Vegetation Mapping: United States...ER D C/ CR RE L TR -1 7- 9 Wetlands Regulatory Assistance Program (WRAP) Testing Methods for Challenging the National Wetland Plant List...Robert W. Lichvar and Jennifer J. Goulet July 2017 Approved for public release; distribution is unlimited. The U.S. Army Engineer Research
10. Credit USAF, 7 September 1945. Original housed in the ...
10. Credit USAF, 7 September 1945. Original housed in the Muroc Flight Test Base, Unit History, 1 September 1942 - 30 June 1945. Alfred F. Simpson Historical Research Agency. United States Air Force. Maxwell AFB, Alabama. View looks northwest into jet engine test cell located on aircraft apron southeast of Building 4305. In background of photo can be seen doors of Unicon Portable Hangar on left, and southeast end of Building T-l Bachelor Officers' Quarters ("Desert Rat Hotel"). This view emphasizes the hangar's role as a test facility for developing and testing aircraft and aircraft systems, not simply as a "garage" for aircraft. - Edwards Air Force Base, North Base, Unicon Portable Hangar, First & C Streets, Boron, Kern County, CA
Commercial portion-controlled foods in research studies: how accurate are label weights?
Conway, Joan M; Rhodes, Donna G; Rumpler, William V
2004-09-01
The purpose of this study was to evaluate the reliability of label weights as surrogates for actual weights in commercial portion-controlled foods used in a research setting. Actual weights of replicate samples of 82 portion-controlled food items and 17 discrete units of food from larger packaging were determined over time. Comparison was made to the package label weights for the portion-controlled food items and the per-serving weights for the discrete units. The study was conducted at the US Department of Agriculture's Beltsville Human Nutrition Research Center's Human Study Facility, which houses a metabolic kitchen and human nutrition research facility. The primary outcome measures were the actual and label weights of 99 food items consumed by human volunteers during controlled feeding studies. Statistical analyses performed The difference between label and actual weights was tested by the paired t test for those data that complied with the assumptions of normality. The Wilcoxon signed rank test was used for the remainder of the data. Compliance with federal guidelines for packaged weights was also assessed. There was no statistical difference between actual and label weights for only 37 food items. The actual weights of 15 portion-controlled food items were 1% or more less than label weights, making them potentially out of compliance with federal guidelines. With advance planning and continuous monitoring, well-controlled feeding studies could incorporate portion-controlled food items and discrete units, especially beverages and confectionery products. Dietetics professionals should encourage individuals with diabetes and others on strict dietary regimens to check actual weights of portion-controlled products carefully against package weights.
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
Advanced Plant Habitat Flight Unit #1
2017-07-24
Inside a laboratory in the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, LED plant growth lights are being checked out on the hardware for the Advanced Plant Habitat flight unit. The flight unit is an exact replica of the APH that was delivered to the International Space Station. Validation tests and post-delivery checkout was performed to prepare for space station in-orbit APH activities. The flight unit will be moved to the International Space Station Environmental Simulator to begin an experiment verification test for the science that will fly on the first mission, PH-01. Developed by NASA and ORBITEC of Madison, Wisconsin, the APH is the largest plant chamber built for the agency. It is a fully automated plant growth facility that will be used to conduct bioscience research on the space station.
Review and Analysis of Algorithmic Approaches Developed for Prognostics on CMAPSS Dataset
2014-12-23
publications for benchmarking prognostics algorithms. The turbofan degradation datasets have received over seven thousand unique downloads in the last five...approaches that researchers have taken to implement prognostics using these turbofan datasets. Some unique characteristics of these datasets are also...Description of the five turbofan degradation datasets available from NASA repository. Datasets #Fault Modes #Conditions #Train Units #Test Units
Exploratory Development Research Effectiveness: A Second Evaluation,
1978-09-01
A12i 537 EXPLORATORY DEVELOPMENT RESERCH EFFECTIVENESS: A / SECOND EVRLUATfON(U) CALIFORNIA STATE UNIV SACRAMENTO T A BUCKLES ET AL. SEP 78 CSUS/NPS...Administration - CSUS-NPS J077091 ii TABLE OF CONTENTS ABSTRACT . OBJECTIVE.............. . .. .. .. .... 1 DISCUSSION............. .. .. .. .... 1... contention that Work Unit Cost influenced the degree of transition. The last postulate that was tested concerned work unit classification by dollar amount. It
ERIC Educational Resources Information Center
Adelson, Nancy C.; And Others
The Laboratory staff reported the unit development and field test activities in their effort to collect, analyze, synthesize, and disseminate new curriculum developments in secondary level social studies to school curriculum decision makers. The audience consisted primarily of social studies teachers and department chairmen. To further refine and…
2003-08-18
KENNEDY SPACE CENTER, FLA. - Research team members work with acoustic cable during underwater acoustic research being conducted in the Launch Complex 39 turn basin. Several government agencies, including NASA, NOAA, the Navy, the Coast Guard, and the Florida Fish and Wildlife Commission are involved in the testing. The research involves demonstrations of passive and active sensor technologies, with applications in fields ranging from marine biological research to homeland security. The work is also serving as a pilot project to assess the cooperation between the agencies involved. Equipment under development includes a passive acoustic monitor developed by NASA’s Jet Propulsion Laboratory, and mobile robotic sensors from the Navy’s Mobile Diving and Salvage Unit.
2003-08-18
KENNEDY SPACE CENTER, FLA. - Researchers utilize several types of watercraft to conduct underwater acoustic research in the Launch Complex 39 turn basin. Several government agencies, including NASA, NOAA, the Navy, the Coast Guard, and the Florida Fish and Wildlife Commission are involved in the testing. The research involves demonstrations of passive and active sensor technologies, with applications in fields ranging from marine biological research to homeland security. The work is also serving as a pilot project to assess the cooperation between the agencies involved. Equipment under development includes a passive acoustic monitor developed by NASA’s Jet Propulsion Laboratory, and mobile robotic sensors from the Navy’s Mobile Diving and Salvage Unit.
Cold-end Subsystem Testing for the Fission Power System Technology Demonstration Unit
NASA Technical Reports Server (NTRS)
Briggs, Maxwell; Gibson, Marc; Ellis, David; Sanzi, James
2013-01-01
The Fission Power System (FPS) Technology Demonstration Unit (TDU) consists of a pumped sodium-potassium (NaK) loop that provides heat to a Stirling Power Conversion Unit (PCU), which converts some of that heat into electricity and rejects the waste heat to a pumped water loop. Each of the TDU subsystems is being tested independently prior to full system testing at the NASA Glenn Research Center. The pumped NaK loop is being tested at NASA Marshall Space Flight Center; the Stirling PCU and electrical controller are being tested by Sunpower Inc.; and the pumped water loop is being tested at Glenn. This paper describes cold-end subsystem setup and testing at Glenn. The TDU cold end has been assembled in Vacuum Facility 6 (VF 6) at Glenn, the same chamber that will be used for TDU testing. Cold-end testing in VF 6 will demonstrate functionality; validated cold-end fill, drain, and emergency backup systems; and generated pump performance and system pressure drop data used to validate models. In addition, a low-cost proof-of concept radiator has been built and tested at Glenn, validating the design and demonstrating the feasibility of using low-cost metal radiators as an alternative to high-cost composite radiators in an end-to-end TDU test.
Cold-End Subsystem Testing for the Fission Power System Technology Demonstration Unit
NASA Technical Reports Server (NTRS)
Briggs, Mazwell; Gibson, Marc; Ellis, David; Sanzi, James
2013-01-01
The Fission Power System (FPS) Technology Demonstration Unit (TDU) consists of a pumped sodiumpotassium (NaK) loop that provides heat to a Stirling Power Conversion Unit (PCU), which converts some of that heat into electricity and rejects the waste heat to a pumped water loop. Each of the TDU subsystems is being tested independently prior to full system testing at the NASA Glenn Research Center. The pumped NaK loop is being tested at NASA Marshall Space Flight Center; the Stirling PCU and electrical controller are being tested by Sunpower Inc.; and the pumped water loop is being tested at Glenn. This paper describes cold-end subsystem setup and testing at Glenn. The TDU cold end has been assembled in Vacuum Facility 6 (VF 6) at Glenn, the same chamber that will be used for TDU testing. Cold-end testing in VF 6 will demonstrate functionality; validated coldend fill, drain, and emergency backup systems; and generated pump performance and system pressure drop data used to validate models. In addition, a low-cost proof-of concept radiator has been built and tested at Glenn, validating the design and demonstrating the feasibility of using low-cost metal radiators as an alternative to highcost composite radiators in an end-to-end TDU test.
... or placebo agent. The purpose of this research design is to avoid inadvertent bias of the test ... basic unit of heredity containing coded instructions for manufacturing a protein. Genes are subunits of chromosomes, which ...
Refrigeration for Cryogenic Sensors
NASA Technical Reports Server (NTRS)
Gasser, M. G. (Editor)
1983-01-01
Research in cryogenically cooled refrigerators is discussed. Low-power Stirling cryocoolers; spacecraft-borne long-life units; heat exchangers; performance tests; split-stirling, linear-resonant, cryogenic refrigerators; and computer models are among the topics discussed.
High Efficiency Centrifugal Compressor for Rotorcraft Applications
NASA Technical Reports Server (NTRS)
Medic, Gorazd; Sharma, Om P.; Jongwook, Joo; Hardin, Larry W.; McCormick, Duane C.; Cousins, William T.; Lurie, Elizabeth A.; Shabbir, Aamir; Holley, Brian M.; Van Slooten, Paul R.
2017-01-01
A centrifugal compressor research effort conducted by United Technologies Research Center under NASA Research Announcement NNC08CB03C is documented. The objectives were to identify key technical barriers to advancing the aerodynamic performance of high-efficiency, high work factor, compact centrifugal compressor aft-stages for turboshaft engines; to acquire measurements needed to overcome the technical barriers and inform future designs; to design, fabricate, and test a new research compressor in which to acquire the requisite flow field data. A new High-Efficiency Centrifugal Compressor stage -- splittered impeller, splittered diffuser, 90 degree bend, and exit guide vanes -- with aerodynamically aggressive performance and configuration (compactness) goals were designed, fabricated, and subquently tested at the NASA Glenn Research Center.
NASA Technical Reports Server (NTRS)
Carter, John F.
1997-01-01
NASA Dryden Flight Research Center (DFRC) is working with the United States Navy to complete ground testing and initiate flight testing of a modified set of F/A-18 flight control computers. The Production Support Flight Control Computers (PSFCC) can give any fleet F/A-18 airplane an in-flight, pilot-selectable research control law capability. NASA DFRC can efficiently flight test the PSFCC for the following four reasons: (1) Six F/A-18 chase aircraft are available which could be used with the PSFCC; (2) An F/A-18 processor-in-the-loop simulation exists for validation testing; (3) The expertise has been developed in programming the research processor in the PSFCC; and (4) A well-defined process has been established for clearing flight control research projects for flight. This report presents a functional description of the PSFCC. Descriptions of the NASA DFRC facilities, PSFCC verification and validation process, and planned PSFCC projects are also provided.
Experimental Data for Two Different Alternator Configurations in a Solar Brayton Power System
NASA Technical Reports Server (NTRS)
Mason, Lee S.; Shaltens, Richard K.; Espinosa, William D.
1997-01-01
A solar dynamic (SD) space power system has been under test at the NASA Lewis Research Center since 1994. The SD Ground Test Demonstration (GTD) system includes a solar concentrator, heat receiver with thermal energy storage, Brayton power conversion unit, and radiator installed in a thermal-vacuum chamber with a solar simulator. The Brayton unit has been operated with two different turboalternator compressor (TAC) assemblies, one which included a Rice Lundell alternator and another which incorporated a permanent magnet (PM) alternator. The Rice alternator was part of the mini-Brayton rotating unit, designed and built during the 1970's and refurbished for the GTD. The PM TAC was a development unit from the Joint US/Russian SD Flight Project. This paper highlights the operational differences (and similarities) between the Rice and PM TAC configurations including a comparative evaluation of startup characteristics and operating performance. The two alternator configurations were tested under similar thermal conditions, as an interchangeable component within the SD system. The electrical characteristics of the two units, however, dictated the use of significantly different power conditioning and control strategies. The electrical control architectures are described and compared. Test data are presented on TAC startup and system operating performance for both configurations.
Fermilab | Science | Particle Accelerators | Advanced Superconducting Test
Accelerators for science and society Particle Physics 101 Science of matter, energy, space and time How Technology (FAST) Facility is America's only test bed for cutting-edge, record high-intensity particle beams in the United States as a particle beam research facility based on superconducting radio-frequency
Testing a passive revegetation approach for restoring coastal plain depression wetlands
Diane De Steven; Rebecca R. Sharitz; Julian H. Singer; Christopher D. Barton
2006-01-01
Restoration of coastal plain depressions, a biologically significant and threatened wetland type of the southeastern United States, has received little systematic research. Within the context of an experimental project designed to evaluate several restoration approaches, we tested whether successful revegetation can be achieved by passive methods (recruitment from seed...
Comparison of Paper-Pencil and Online Performances of Students with Learning Disabilities
ERIC Educational Resources Information Center
Taherbhai, Husein; Seo, Daeryong; Bowman, Trinell
2012-01-01
Literature in the United States provides many examples of no difference in student achievement when measured against the mode of test administration i.e., paper-pencil and online versions of the test. However, most of these researches centre on "regular" students who do not require differential teaching methods or different evaluation…
2016-08-03
Inside a control building at NASA's Kennedy Space Center in Florida, Adam Swinger, cryogenic research engineer in the Exploration Research and Technology Directorate, communicates with team members during a test of the Ground Operations Demo Unit for liquid hydrogen. The system includes a 33,000 gallon liquid hydrogen storage tank with an internal cold heat exchanger supplied from a cryogenic refrigerator. The primary goal of the testing is to achieve a liquid hydrogen zero boil-off capability. The system was designed, installed and tested by a team of civil servants and contractors from the center's Cryogenic Test Laboratory, with support from engineers at NASA's Glenn Research Center in Cleveland and Stennis Space Center in Mississippi. It may be applicable for use by the Ground Systems Development and Operations Program at Launch Pad 39B.
1995-03-24
Outlined with gold stripes are the hinged nose strakes, modifications made to NASA's F-18 HARV (High Alpha Research Vehicle) at the Dryden Flight Research Center, Edwards, California. Actuated Nose Strakes for Enhanced Rolling (ANSER) were installed to fly the third and final phase in the HARV flight test project. Normally folded flush, the units -- four feet long and six inches wide -- can be opened independently to interact with the nose vortices to produce large side forces for control. Early wind tunnel tests indicated that the strakes would be as effective in yaw control at high angles of attack as rudders are at lower angles. Testing involved evaluation of the strakes by themselves as well as combined with the aircraft's Thrust Vectoring System. The strakes were designed by NASA's Langley Research Center, then installed and flight tested at Dryden.
Violence Prevention in United States Society of Jesus Secondary Schools
ERIC Educational Resources Information Center
Simonds, Thomas Andrew
2009-01-01
Using data from a representative number of Society of Jesus secondary schools, the researcher reports what these schools are doing to prevent violence, and tests an explanatory model of school violence he created. The researcher proposes that this model can be used to explain and prevent school violence by identifying and addressing the…
9 CFR 104.4 - Products for research and evaluation.
Code of Federal Regulations, 2011 CFR
2011-01-01
... the producer for a small quantity of such product for in vitro Research and Evaluation tests: Provided... Administrator may require in order to assess the product's impact on the environment. (b)(1) A permit to import... and evaluation anywhere in or from the United States unless authorized by the Administrator in...
9 CFR 104.4 - Products for research and evaluation.
Code of Federal Regulations, 2010 CFR
2010-01-01
... the producer for a small quantity of such product for in vitro Research and Evaluation tests: Provided... Administrator may require in order to assess the product's impact on the environment. (b)(1) A permit to import... and evaluation anywhere in or from the United States unless authorized by the Administrator in...
The Effects of Scenario Planning on Participant Decision-Making Style
ERIC Educational Resources Information Center
Chermack, Thomas J.; Nimon, Kim
2008-01-01
This research examines changes in decision-making styles as a result of participation in scenario planning. A quasi-experimental pretest-posttest design and several nonparametric tests were used to analyze data gathered from research participants in a technology firm in the Northeastern United States. Results show that participants tend to…
Using Practitioner Inquiry within and against Large-Scale Educational Reform
ERIC Educational Resources Information Center
Hines, Mary Beth; Conner-Zachocki, Jennifer
2015-01-01
This research study examines the impact of teacher research on participants in a large-scale educational reform initiative in the United States, No Child Left Behind, and its strand for reading teachers, Reading First. Reading First supported professional development for teachers in order to increase student scores on standardized tests. The…
1993-04-07
A NASA CV-990, modified as a Landing Systems Research Aircraft (LSRA), in flight over NASA's Dryden Flight Research Center, Edwards, California, for a test of the space shuttle landing gear system. The space shuttle landing gear test unit, operated by a high-pressure hydraulic system, allowed engineers to assess and document the performance of space shuttle main and nose landing gear systems, tires and wheel assemblies, plus braking and nose wheel steering performance. The series of 155 test missions for the space shuttle program provided extensive data about the life and endurance of the shuttle tire systems and helped raise the shuttle crosswind landing limits at Kennedy.
1993-04-07
A NASA CV-990, modified as a Landing Systems Research Aircraft (LSRA), in flight over NASA's Dryden Flight Research Center, Edwards, California, for a test of the space shuttle landing gear system. The space shuttle landing gear test unit, operated by a high-pressure hydraulic system, allowed engineers to assess and document the performance of space shuttle main and nose landing gear systems, tires and wheel assemblies, plus braking and nose wheel steering performance. The series of 155 test missions for the space shuttle program provided extensive data about the life and endurance of the shuttle tire systems and helped raise the shuttle crosswind landing limits at Kennedy.
Spacelab mission development tests
NASA Technical Reports Server (NTRS)
Dalton, B. P.
1978-01-01
The paper describes Spacelab Mission Development Test III (SMD III) whose principal scientific objective was to demonstrate the feasibility of conducting biological research in the Life Sciences Spacelab. The test also provided an opportunity to try out several items of Common Operational Research Equipment (CORE) hardware being developed for operational use in Shuttle/Spacelab, such as rodent and primate handling, transportation units, and a 'zero-g' surgical bench. Operational concepts planned for Spacelab were subjected to evaluation, including animal handling procedures, animal logistics, crew selection and training, and a 'remote' ground station concept. It is noted that all the objectives originally proposed for SMD III were accomplished
Operation of the 25kW NASA Lewis Research Center Solar Regenerative Fuel Cell Tested Facility
NASA Technical Reports Server (NTRS)
Moore, S. H.; Voecks, G. E.
1997-01-01
Assembly of the NASA Lewis Research Center(LeRC)Solar Regenerative Fuel Cell (RFC) Testbed Facility has been completed and system testing has proceeded. This facility includes the integration of two 25kW photovoltaic solar cell arrays, a 25kW proton exchange membrane (PEM) electrolysis unit, four 5kW PEM fuel cells, high pressure hydrogen and oxygen storage vessels, high purity water storage containers, and computer monitoring, control and data acquisition.
Extended Operation of Stirling Convertors at NASA Glenn Research Center
NASA Technical Reports Server (NTRS)
Oriti, Salvatore, M.
2012-01-01
NASA Glenn Research Center (GRC) has been supporting development of free-piston Stirling conversion technology for spaceflight electrical power generation since 1999. GRC has also been supporting the development of the Advanced Stirling Radioisotope Generator (ASRG) since 2006. A key element of the ASRG project is providing life, reliability, and performance data for the Advanced Stirling Convertor (ASC). The Thermal Energy Conversion branch at GRC is conducting extended operation of several free-piston Stirling convertors. The goal of this effort is to generate long-term performance data (tens of thousands of hours) on multiple units to build a life and reliability database. Currently, GRC is operating 18 convertors. This hardware set includes Technology Demonstration Convertors (TDCs) from Infinia Corporation, of which one pair (TDCs #13 and #14) has accumulated over 60,000 hr (6.8 years) of operation. Also under test are various Sunpower, Inc. convertors that were fabricated during the ASC development activity, including ASC-0, ASC-E (including those in the ASRG engineering unit), and ASC-E2. The ASC-E2s also completed, or are in progress of completing workmanship vibration testing, performance mapping, and extended operation. Two ASC-E2 units will also be used for durability testing, during which components will be stressed to levels above nominal mission usage. Extended operation data analyses from these tests are covered in this paper.
NASA Technical Reports Server (NTRS)
Glover, R. D.
1983-01-01
The NASA Dryden Flight Research Facility has developed a microprocessor-based, user-programmable, general-purpose aircraft interrogation and display system (AIDS). The hardware and software of this ground-support equipment have been designed to permit diverse applications in support of aircraft digital flight-control systems and simulation facilities. AIDS is often employed to provide engineering-units display of internal digital system parameters during development and qualification testing. Such visibility into the system under test has proved to be a key element in the final qualification testing of aircraft digital flight-control systems. Three first-generation 8-bit units are now in service in support of several research aircraft projects, and user acceptance has been high. A second-generation design, extended AIDS (XAIDS), incorporating multiple 16-bit processors, is now being developed to support the forward swept wing aircraft project (X-29A). This paper outlines the AIDS concept, summarizes AIDS operational experience, and describes the planned XAIDS design and mechanization.
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
Biometric identification standards research
DOT National Transportation Integrated Search
2012-08-01
This report presents the test plan for conducting the Air Quality Analysis for the United States Department of Transportation (U.S. DOT) evaluation of the San Diego Integrated Corridor Management (ICM) Initiative Demonstration. The ICM projects being...
76 FR 14375 - United States Integrated Ocean Observing System Advisory Committee
Federal Register 2010, 2011, 2012, 2013, 2014
2011-03-16
... coastal resources; and public safety. The System is also designed to promote research to develop, test...; coastal management; fisheries management; coastal and marine spatial planning; geodesy; water levels; and...
A PC program for estimating measurement uncertainty for aeronautics test instrumentation
NASA Technical Reports Server (NTRS)
Blumenthal, Philip Z.
1995-01-01
A personal computer program was developed which provides aeronautics and operations engineers at Lewis Research Center with a uniform method to quickly provide values for the uncertainty in test measurements and research results. The software package used for performing the calculations is Mathcad 4.0, a Windows version of a program which provides an interactive user interface for entering values directly into equations with immediate display of results. The error contribution from each component of the system is identified individually in terms of the parameter measured. The final result is given in common units, SI units, and percent of full scale range. The program also lists the specifications for all instrumentation and calibration equipment used for the analysis. It provides a presentation-quality printed output which can be used directly for reports and documents.
Toxic Hazards Research Unit. Annual Technical Report. 1978
1978-08-01
determinations made for the following battery of clinical tests: HCT Bilirubin RBC Glucose WBC Triglycerides HGB Iron Alkaline Sedimentation Phosphatase Rate ...Count WBC Hematocrit HCT Hemoglobin HGB Sedimentation Rate SEDI Reticulocytes RETIC MCORP Mean Corpuscular Volume MCV Mean Corpuscular Hemoglobin MCH...Contract F33615-76-C-5005 9. PERFORMING ORGANIZATION NAME AND ADDRESS 10. PPOGPAM ELEMENT, PROJECT , TASK University of California, Irvine APEA A WORK UNIT
Emergency Warning Systems. Part 2. Warning Systems - Evaluation Guidelines.
1983-07-01
ELEMENT. PROJECT. TASK AREA A WORK UNIT NUMBERS PRC Voorhees Work Unit 2234G 1500 Planning Research Drive McLean, Virginia 22102 ___ 11. CONTROLLING ...different from Controlling Office) IS. SECURITY CLASS. (of this report) Unclassified 15a. DECLASSIFICATION/DOWNGRADING SCHEDULE 16. DISTRIBUTION...systems that control these warning systems are discussed. Test results of several warning systems are included along with a discussion of sound
Announced United States nuclear tests, July 1945 through December 1987
DOE Office of Scientific and Technical Information (OSTI.GOV)
Not Available
1988-04-01
This document lists chronologically and alphabetically by event name all nuclear tests conducted and announced by the United States from July 1945 through December 1987, with the exception of the GMX experiments. The 24 GMX experiments, conducted at the Nevada Test Site (NTS) between December 1954 and February 1956, were /open quotes/equation-of-state/close quotes/ physics studies that used small chemical explosives and small quantities of plutonium. Several tests conducted during Operation Dominic involved missile launches from Johnston Atoll. Several of these missle launches were aborted, resulting in the destruction of the missile and nuclear device either on the pad or inmore » the air. Data on United States tests were obtained from and verified by the Department of Energy's three weapons laboratories--Los Alamos National Laboratory, Los Alamos, New Mexico; Lawrence Livermore National Laboratory, Livermore, California; and Sandia National Laboratories, Albuquerque, New Mexico. Additionally, data were obtained from public announcements issued by the Atomic Energy Commission and its successors, the Energy Research and Development Administation and the Department of Energy, respectively.« less
Revitalizing chemistry laboratory instruction
NASA Astrophysics Data System (ADS)
McBride, Phil Blake
This dissertation involves research in three major domains of chemical education as partial fulfillment of the requirements for the Ph.D. program in chemistry at Miami University with a major emphasis on chemical education, and concurrent study in organic chemistry. Unit I, Development and Assessment of a Column Chromatography Laboratory Activity, addresses the domain of Instructional Materials Development and Testing. This unit outlines the process of developing a publishable laboratory activity, testing and revising that activity, and subsequently sharing that activity with the chemical education community. A laboratory activity focusing on the separation of methylene blue and sodium fluorescein was developed to demonstrate the effects of both the stationary and mobile phase in conducting a separation. Unit II, Bringing Industry to the Laboratory, addresses the domain of Curriculum Development and Testing. This unit outlines the development of the Chemistry of Copper Mining module, which is intended for use in high school or undergraduate college chemistry. The module uses the learning cycle approach to present the chemistry of the industrial processes of mining copper to the students. The module includes thirteen investigations (three of which are web-based and ten which are laboratory experiments) and an accompanying interactive CD-ROM, which provides an explanation of the chemistry used in copper mining with a virtual tour of an operational copper mine. Unit III, An Alternative Method of Teaching Chemistry. Integrating Lecture and the Laboratory, is a project that addresses the domain of Research in Student Learning. Fundamental Chemistry was taught at Eastern Arizona College as an integrated lecture/laboratory course that met in two-hour blocks on Monday, Wednesday, and Friday. The students taking this integrated course were compared with students taking the traditional 1-hour lectures held on Monday, Wednesday, and Friday, with accompanying 3-hour lab on Tuesday or Thursday. There were 119 students in the test group, 522 students in the Shelton control group and 556 students in the McBride control group. Both qualitative data and quantitative data were collected. A t-test was used to test significance.
10. Credit USAF, 1945. Original housed in the Muroc Flight ...
10. Credit USAF, 1945. Original housed in the Muroc Flight Test Base, Unit History, 1 September 1942 30 June 1945. Alfred F. Simpson Historical Research Agency. United States Air Force. Maxwell AFB, Alabama. View of jet engine rotor balancing machine with engine rotor in place for balancing operations. Original caption reads "Balancing bucket wheel of jet engine, Muroc Flight Test Base, Oct. 1945"; personnel not identified. Location where photograph was taken not determined, but presumed to be in shops of Building 4505. - Edwards Air Force Base, North Base, Hangar, End of North Base Road, Boron, Kern County, CA
High Input Voltage, Silicon Carbide Power Processing Unit Performance Demonstration
NASA Technical Reports Server (NTRS)
Bozak, Karin E.; Pinero, Luis R.; Scheidegger, Robert J.; Aulisio, Michael V.; Gonzalez, Marcelo C.; Birchenough, Arthur G.
2015-01-01
A silicon carbide brassboard power processing unit has been developed by the NASA Glenn Research Center in Cleveland, Ohio. The power processing unit operates from two sources: a nominal 300 Volt high voltage input bus and a nominal 28 Volt low voltage input bus. The design of the power processing unit includes four low voltage, low power auxiliary supplies, and two parallel 7.5 kilowatt (kW) discharge power supplies that are capable of providing up to 15 kilowatts of total power at 300 to 500 Volts (V) to the thruster. Additionally, the unit contains a housekeeping supply, high voltage input filter, low voltage input filter, and master control board, such that the complete brassboard unit is capable of operating a 12.5 kilowatt Hall effect thruster. The performance of the unit was characterized under both ambient and thermal vacuum test conditions, and the results demonstrate exceptional performance with full power efficiencies exceeding 97%. The unit was also tested with a 12.5kW Hall effect thruster to verify compatibility and output filter specifications. With space-qualified silicon carbide or similar high voltage, high efficiency power devices, this would provide a design solution to address the need for high power electric propulsion systems.
An Electronic Pressure Profile Display system for aeronautic test facilities
NASA Technical Reports Server (NTRS)
Woike, Mark R.
1990-01-01
The NASA Lewis Research Center has installed an Electronic Pressure Profile Display system. This system provides for the real-time display of pressure readings on high resolution graphics monitors. The Electronic Pressure Profile Display system will replace manometer banks currently used in aeronautic test facilities. The Electronic Pressure Profile Display system consists of an industrial type Digital Pressure Transmitter (DPI) unit which interfaces with a host computer. The host computer collects the pressure data from the DPI unit, converts it into engineering units, and displays the readings on a high resolution graphics monitor in bar graph format. Software was developed to accomplish the above tasks and also draw facility diagrams as background information on the displays. Data transfer between host computer and DPT unit is done with serial communications. Up to 64 channels are displayed with one second update time. This paper describes the system configuration, its features, and its advantages over existing systems.
An electronic pressure profile display system for aeronautic test facilities
NASA Technical Reports Server (NTRS)
Woike, Mark R.
1990-01-01
The NASA Lewis Research Center has installed an Electronic Pressure Profile Display system. This system provides for the real-time display of pressure readings on high resolution graphics monitors. The Electronic Pressure Profile Display system will replace manometer banks currently used in aeronautic test facilities. The Electronic Pressure Profile Display system consists of an industrial type Digital Pressure Transmitter (DPT) unit which interfaces with a host computer. The host computer collects the pressure data from the DPT unit, converts it into engineering units, and displays the readings on a high resolution graphics monitor in bar graph format. Software was developed to accomplish the above tasks and also draw facility diagrams as background information on the displays. Data transfer between host computer and DPT unit is done with serial communications. Up to 64 channels are displayed with one second update time. This paper describes the system configuration, its features, and its advantages over existing systems.
Quality assurance and quality improvement in U.S. clinical molecular genetic laboratories.
Chen, Bin; Richards, C Sue; Wilson, Jean Amos; Lyon, Elaine
2011-04-01
A robust quality-assurance program is essential for laboratories that perform molecular genetic testing to maintain high-quality testing and be able to address challenges associated with performance or delivery of testing services as the use of molecular genetic tests continues to expand in clinical and public health practice. This unit discusses quality-assurance and quality-improvement considerations that are critical for molecular genetic testing performed for heritable diseases and conditions. Specific discussion is provided on applying regulatory standards and best practices in establishing/verifying test performance, ensuring quality of the total testing process, monitoring and maintaining personnel competency, and continuing quality improvement. The unit provides a practical reference for laboratory professionals to use in recognizing and addressing essential quality-assurance issues in human molecular genetic testing. It should also provide useful information for genetics researchers, trainees, and fellows in human genetics training programs, as well as others who are interested in quality assurance and quality improvement for molecular genetic testing. 2011 by John Wiley & Sons, Inc.
Space Electronic Test Engineering
NASA Technical Reports Server (NTRS)
Chambers, Rodney D.
2004-01-01
The Space Power and Propulsion Test Engineering Branch at NASA Glenn Research center has the important duty of controlling electronic test engineering services. These services include test planning and early assessment of Space projects, management and/or technical support required to safely and effectively prepare the article and facility for testing, operation of test facilities, and validation/delivery of data to customer. The Space Electronic Test Engineering Branch is assigned electronic test engineering responsibility for the GRC Space Simulation, Microgravity, Cryogenic, and Combustion Test Facilities. While working with the Space Power and Propulsion Test Engineering Branch I am working on several different assignments. My primary assignment deals with an electrical hardware unit known as Sunny Boy. Sunny Boy is a DC load Bank that is designed for solar arrays in which it is used to convert DC power form the solar arrays into AC power at 60 hertz to pump back into the electricity grid. However, there are some researchers who decided that they would like to use the Sunny Boy unit in a space simulation as a DC load bank for a space shuttle or even the International Space Station hardware. In order to do so I must create a communication link between a computer and the Sunny Boy unit so that I can preset a few of the limits (such power, set & constant voltage levels) that Sunny Boy will need to operate using the applied DC load. Apart from this assignment I am also working on a hi-tech circuit that I need to have built at a researcher s request. This is a high voltage analog to digital circuit that will be used to record data from space ion propulsion rocket booster tests. The problem that makes building this circuit so difficult is that it contains high voltage we must find a way to lower the voltage signal before the data is transferred into the computer to be read. The solution to this problem was to transport the signal using infrared light which will lower the voltage signal down low enough so that it is harmless to a computer. Along with my involvement in the Space Power and Propulsion Test Engineering Branch, I am obligated to assist all other members of the branch in their work. This will help me to strengthen and extend my knowledge of Electrical Engineering.
Testing the Birth Unit Design Spatial Evaluation Tool (BUDSET) in Australia: a pilot study.
Foureur, Maralyn J; Leap, Nicky; Davis, Deborah L; Forbes, Ian F; Homer, Caroline E S
2011-01-01
To pilot test the Birth Unit Design Spatial Evaluation Tool (BUDSET) in an Australian maternity care setting to determine whether such an instrument can measure the optimality of different birth settings. Optimally designed spaces to give birth are likely to influence a woman's ability to experience physiologically normal labor and birth. This is important in the current industrialized environment, where increased caesarean section rates are causing concerns. The measurement of an optimal birth space is currently impossible, because there are limited tools available. A quantitative study was undertaken to pilot test the discriminant ability of the BUDSET in eight maternity units in New South Wales, Australia. Five auditors trained in the use of the BUDSET assessed the birth units using the BUDSET, which is based on 18 design principles and is divided into four domains (Fear Cascade, Facility, Aesthetics, and Support) with three to eight assessable items in each. Data were independently collected in eight birth units. Values for each of the domains were aggregated to provide an overall Optimality Score for each birth unit. A range of Optimality Scores was derived for each of the birth units (from 51 to 77 out of a possible 100 points). The BUDSET identified units with low-scoring domains. Essentially these were older units and conventional labor ward settings. The BUDSET provides a way to assess the optimality of birth units and determine which domain areas may need improvement. There is potential for improvements to existing birth spaces, and considerable improvement can be made with simple low-cost modifications. Further research is needed to validate the tool.
How qualitative research can contribute to research in the intensive care unit.
Sinuff, Tasnim; Cook, Deborah J; Giacomini, Mita
2007-06-01
A qualitative research design can provide unique contributions to research in the intensive care unit. Qualitative research includes the entire process of research: the methodology (conceptualization of the research question, choosing the appropriate qualitative strategy, designing the protocol), methods (conducting the research using qualitative methods within the chosen qualitative strategy, analysis of the data, verification of the findings), and writing the narrative. The researcher is the instrument and the data are the participants' words and experiences that are collected and coded to present experiences, discover themes, or build theories. A number of strategies are available to conduct qualitative research and include grounded theory, phenomenology, case study, and ethnography. Qualitative methods can be used to understand complex phenomena that do not lend themselves to quantitative methods of formal hypothesis testing. Qualitative research may be used to gain insights about organizational and cultural issues within the intensive care unit and to improve our understanding of social interaction and processes of health care delivery. In this article, we outline the rationale for, and approaches to, using qualitative research to inform critical care issues. We provide an overview of qualitative methods available and how they can be used alone or in concert with quantitative methods. To illustrate how our understanding of social phenomena such as patient safety and behavior change has been enhanced we use recent qualitative studies in acute care medicine.
Unit Under Test Simulator Feasibility Study.
1980-06-01
interlocking connectors to conceptual differences such as octopus types of cables. 0 The validity of the IA description to the UUT simulator. Although...Research Institute, January 1978. 146. Ring , S. J. "Automatic Testing Via a Distributed Intelligence Processing System." Autotestcon 77, 2-4 November 1977...pp. 89-98. 147. Ring , S. J. "A Distributed Intelligence Automatic Test System for PATRIOT." IEEE Trans. 1977, Aerosp. and Electron Systems, Vol. AES
NASA Technical Reports Server (NTRS)
1976-01-01
Acuity Systems, Inc. developed an electro-optical instrument under a grant from NASA to measure the visual performance of pilots. Transferred from Ames Research Center, this instrument now allows you to have your eyes tested in seconds by relatively unskilled operators. The device automatically measures refractive error of eye and prints out proper prescription for glasses. The unit also detects cataracts and glaucoma.
ERIC Educational Resources Information Center
Tully, Derek; Dunn, Rita; Hlawaty, Heide
2006-01-01
This research compared the effects of a Programmed Learning Sequence (PLS) (Dunn & Dunn, 1993) versus Traditional Teaching (TT) on 100 sixth-grade Bermudian students' test scores on a Fractions Unit. Fifty-three males' and forty-seven females' learning styles were identified with the "Learning Style Inventory" (LSI) (Dunn, Dunn,…
ERIC Educational Resources Information Center
Misieng, Jecky
2013-01-01
As a result of growing attention in cross-cultural research, existing measurement instruments developed in one language are being translated and adapted for use in other languages and cultural contexts. Producing invariant measurement instruments that assess educational and psychological constructs provide a way of testing the cross-cultural…
ERIC Educational Resources Information Center
Ku, Lisbeth; Dittmar, Helga; Banerjee, Robin
2012-01-01
Is materialism systematically related to teenagers' learning motivation as well as actual learning outcomes? The reported research tested a theoretical model of associations among materialism, achievement goals, and exam performance among teenagers. Study 1 tested the theoretical model in 4 groups of teenagers drawn from 2 different educational…
2014-12-01
113 Figure 64 - Elemental Analysis, Typical TMS Post - Test , Post Carbon Burn-off, Hexane rinsed ............ 114 Figure 65 – SEM (20X...Agency’s Wright-Patterson Aerospace Fuels Laboratory AFRL Air Force Research Laboratory AFTSTU Aviation Fuel Thermal Stability Test Unit ARSFSS Advanced...Approved for public release; distribution unlimited. For all ARSFSS testing , SV hysteresis is measure pre- and post - test and is defined by relating
An inventory of aeronautical ground research facilities. Volume 1: Wind tunnels
NASA Technical Reports Server (NTRS)
Pirrello, C. J.; Hardin, R. D.; Heckart, M. V.; Brown, K. R.
1971-01-01
A survey of wind tunnel research facilities in the United States is presented. The inventory includes all subsonic, transonic, and hypersonic wind tunnels operated by governmental and private organizations. Each wind tunnel is described with respect to size, mechanical operation, construction, testing capabilities, and operating costs. Facility performance data are presented in charts and tables.
1981-01-01
SCIENCE & TECH 162 - UNITED KINGDOM MINISTRY OF DEFENCE 2,670 - UN KINGDOM 162 UN KINGDOM 2,670 INSTITUT FUER ATMOSPHAERISCHE 25 - UNIVERSITE RENE ... DESCARTES 10 - GERMANY 25 FRANCE 10 INVERESK RESEARCH INTERNATIONAL 106 - 8,602 UN KINGDOM 106 ISRAEL INSTITUTE OF TECHNOLOGY 55 - ISRAEL 55 KEELE UNIVERSITY
Developing Initiatives for Home-Based Child Care: Current Research and Future Directions
ERIC Educational Resources Information Center
Porter, Toni; Paulsell, Diane
2011-01-01
Home-based child care accounts for a significant share of the child care supply in the United States, especially for infants and toddlers. A synthesis of the home-based care research literature and information about recent home-based care quality initiatives points to a critical need for more systematic efforts to develop and test quality…
Combat Ready Clamp Addition to the Tactical Combat Casualty Care Guidelines
2011-09-23
Combat Gauze™ is currently the onl ( CoTCCC-endorsed intervention for bleeding in areas not amenable to a tourniquet. L Research and anecdotal evidence...them effectively as a battlefield trauma care research , development, test and evaluation (RDT&E) project. 17 In anticipation of this recommendation...the United States Army Medical Research and Materiel Command (USAMRMC) posted a Request for Information (RFI) for devices that could potentially stop
Soldier Capability - Army Combat Effectiveness (SCACE). Volume 2. Selected Bibliography
1981-02-01
Human Resources Research Office, June 1963. 388. McLachlan, Joseph C., et al. Navy-Wide Standardized Proficiency Testing Program for Fleet JEZEBEL...Directorate of Evaluation, August 1979. 428. Olmstead, Joseph A., et al. Research on Training for Brigade Com- mand Groups: Factors Contributing to Unit...orormance Human Rsurces Research Organization, August 1972. 686. Vitola, B. M., Guinn, N., and Wilbourn , J. N. acm o Various Enlistment Standards on
NASA Technical Reports Server (NTRS)
Dugala, Gina M.
2010-01-01
The U.S. Department of Energy, Lockheed Martin Space Systems Company, Sunpower Inc., and NASA Glenn Research Center (GRC) have been developing an Advanced Stirling Radioisotope Generator (ASRG) for use as a power system on space science missions. This generator will make use of free-piston Stirling convertors to achieve higher conversion efficiency than with currently available alternatives. One part of NASA GRC's support of ASRG development includes extended operation testing of Advanced Stirling Convertors (ASCs) developed by Sunpower Inc. and GRC. The ASC consists of a free-piston Stirling engine integrated with a linear alternator. NASA GRC has been building test facilities to support extended operation of the ASCs for several years. Operation of the convertors in the test facility provides convertor performance data over an extended period of time. One part of the test facility is the test rack, which provides a means for data collection, convertor control, and safe operation. Over the years, the test rack requirements have changed. The initial ASC test rack utilized an alternating-current (AC) bus for convertor control; the ASRG Engineering Unit (EU) test rack can operate with AC bus control or with an ASC Control Unit (ACU). A new test rack is being developed to support extended operation of the ASC-E2s with higher standards of documentation, component selection, and assembly practices. This paper discusses the differences among the ASC, ASRG EU, and ASC-E2 test racks.
2003-08-19
KENNEDY SPACE CENTER, FLA. - Researchers are positioned on one of the watercraft being utilized to conduct underwater acoustic research in the Launch Complex 39 turn basin. Several government agencies, including NASA, NOAA, the Navy, the Coast Guard, and the Florida Fish and Wildlife Commission are involved in the testing. The research involves demonstrations of passive and active sensor technologies, with applications in fields ranging from marine biological research to homeland security. The work is also serving as a pilot project to assess the cooperation between the agencies involved. Equipment under development includes a passive acoustic monitor developed by NASA’s Jet Propulsion Laboratory, and mobile robotic sensors from the Navy’s Mobile Diving and Salvage Unit.
2003-08-18
KENNEDY SPACE CENTER, FLA. - Researchers utilize several types of watercraft to conduct underwater acoustic research in the Launch Complex 39 turn basin near Launch Pad 39A. Several government agencies, including NASA, NOAA, the Navy, the Coast Guard, and the Florida Fish and Wildlife Commission are involved in the testing. The research involves demonstrations of passive and active sensor technologies, with applications in fields ranging from marine biological research to homeland security. The work is also serving as a pilot project to assess the cooperation between the agencies involved. Equipment under development includes a passive acoustic monitor developed by NASA’s Jet Propulsion Laboratory, and mobile robotic sensors from the Navy’s Mobile Diving and Salvage Unit.
2003-08-18
KENNEDY SPACE CENTER, FLA. - Dr. Grant Gilmore (left), Dynamac Corp., talks to another member of the research team conducting underwater acoustic research in the Launch Complex 39 turn basin. Several government agencies, including NASA, NOAA, the Navy, the Coast Guard, and the Florida Fish and Wildlife Commission are involved in the testing. The research involves demonstrations of passive and active sensor technologies, with applications in fields ranging from marine biological research to homeland security. The work is also serving as a pilot project to assess the cooperation between the agencies involved. Equipment under development includes a passive acoustic monitor developed by NASA’s Jet Propulsion Laboratory, and mobile robotic sensors from the Navy’s Mobile Diving and Salvage Unit.
2003-08-18
KENNEDY SPACE CENTER, FLA. - Research team members roll out acoustic cable to the water's edge during underwater acoustic research being conducted in the Launch Complex 39 turn basin. Several government agencies, including NASA, NOAA, the Navy, the Coast Guard, and the Florida Fish and Wildlife Commission are involved in the testing. The research involves demonstrations of passive and active sensor technologies, with applications in fields ranging from marine biological research to homeland security. The work is also serving as a pilot project to assess the cooperation between the agencies involved. Equipment under development includes a passive acoustic monitor developed by NASA’s Jet Propulsion Laboratory, and mobile robotic sensors from the Navy’s Mobile Diving and Salvage Unit.
2003-08-18
KENNEDY SPACE CENTER, FLA. - Joe Bartoszek, NASA, is a member of the research team conducting underwater acoustic research in the Launch Complex 39 turn basin near Launch Pad 39A. Several government agencies, including NASA, NOAA, the Navy, the Coast Guard, and the Florida Fish and Wildlife Commission are involved in the testing. The research involves demonstrations of passive and active sensor technologies, with applications in fields ranging from marine biological research to homeland security. The work is also serving as a pilot project to assess the cooperation between the agencies involved. Equipment under development includes a passive acoustic monitor developed by NASA’s Jet Propulsion Laboratory, and mobile robotic sensors from the Navy’s Mobile Diving and Salvage Unit.
2003-08-19
KENNEDY SPACE CENTER, FLA. - Research team members take their places on one of the watercraft being utilized to conduct underwater acoustic research in the Launch Complex 39 turn basin. Several government agencies, including NASA, NOAA, the Navy, the Coast Guard, and the Florida Fish and Wildlife Commission are involved in the testing. The research involves demonstrations of passive and active sensor technologies, with applications in fields ranging from marine biological research to homeland security. The work is also serving as a pilot project to assess the cooperation between the agencies involved. Equipment under development includes a passive acoustic monitor developed by NASA’s Jet Propulsion Laboratory, and mobile robotic sensors from the Navy’s Mobile Diving and Salvage Unit.
Hardware interface unit for control of shuttle RMS vibrations
NASA Technical Reports Server (NTRS)
Lindsay, Thomas S.; Hansen, Joseph M.; Manouchehri, Davoud; Forouhar, Kamran
1994-01-01
Vibration of the Shuttle Remote Manipulator System (RMS) increases the time for task completion and reduces task safety for manipulator-assisted operations. If the dynamics of the manipulator and the payload can be physically isolated, performance should improve. Rockwell has developed a self contained hardware unit which interfaces between a manipulator arm and payload. The End Point Control Unit (EPCU) is built and is being tested at Rockwell and at the Langley/Marshall Coupled, Multibody Spacecraft Control Research Facility in NASA's Marshall Space Flight Center in Huntsville, Alabama.
Design and fabrication of the Brayton rotating unit
NASA Technical Reports Server (NTRS)
Davis, J. E.
1972-01-01
The Brayton rotating unit (BRU), operating on a gas bearing system, has been designed, fabricated, and demonstrated for use in a closed Brayton cycle space power conversion system. The BRU uses a binary mixture of xenon and helium (molecular weight, 83.8) as the cycle working fluid and bearing lubricating medium and was designed to produce from 2.25 to 10.5 kw sub e of 1200 Hz three-phase electrical power. The single-shaft rotating assembly operates at a design speed of 36,000 rpm and comprises a radial single-stage compressor, a four-pole Rice alternator rotor, and a radial inflow turbine. Four units, a dynamic simulator and three component research packages, were supplied to the NASA Lewis Research Center for performance testing and further development.
4. Credit USAF, ca. 1945. Original housed in the Muroc ...
4. Credit USAF, ca. 1945. Original housed in the Muroc Flight Test Base, Unit History, 1 September 1942 - 30 June 1945. Alfred F. Simpson Historical Research Agency. United States Air Force. Maxwell AFB, Alabama. Photographic copy of photograph captioned "Hangar No. 2 Hydraulics Room." Location within Building 4402 not determined. - Edwards Air Force Base, North Base, Hangar No. 2, First & A Streets, Boron, Kern County, CA
A Communication Architecture for an Advanced Extravehicular Mobile Unit
NASA Technical Reports Server (NTRS)
Ivancic, William D.; Sands, Obed S.; Bakula, Casey J.; Oldham, Daniel R.; Wright, Ted; Bradish, Martin A.; Klebau, Joseph M.
2014-01-01
This document describes the communication architecture for the Power, Avionics and Software (PAS) 1.0 subsystem for the Advanced Extravehicular Mobility Unit (AEMU). The following systems are described in detail: Caution Warning and Control System, Informatics, Storage, Video, Audio, Communication, and Monitoring Test and Validation. This document also provides some background as well as the purpose and goals of the PAS subsystem being developed at Glenn Research Center (GRC).
Development of Driver/Vehicle Steering Interaction Models for Dynamic Analysis
1988-12-01
Figure 5-10. The Linearized Single-Unit Vehicle Model ............................... 41 Figure 5-11. Interpretation of the Single-Unit Model...The starting point for the driver modelling research conducted under this project was a linear preview control model originally proposed by MacAdam 1...regardless of its origin, can pass at least the elementary validation test of exhibiting "cross-over model"-like- behavior in the vicinity of its
DOE Office of Scientific and Technical Information (OSTI.GOV)
NSTec Environmental Programs
2010-06-17
The Area 5 Hazardous Waste Storage Unit (HWSU) was established to support testing, research, and remediation activities at the Nevada Test Site (NTS), a large-quantity generator of hazardous waste. The HWSU, located adjacent to the Area 5 Radioactive Waste Management Site (RWMS), is a prefabricated, rigid steel-framed, roofed shelter used to store hazardous nonradioactive waste generated on the NTS. No offsite generated wastes are managed at the HWSU. Waste managed at the HWSU includes the following categories: Flammables/Combustibles; Acid Corrosives; Alkali Corrosives; Oxidizers/Reactives; Toxics/Poisons; and Other Regulated Materials (ORMs). A list of the regulated waste codes accepted for storage atmore » the HWSU is provided in Section B.2. Hazardous wastes stored at the HWSU are stored in U.S. Department of Transportation (DOT) compliant containers, compatible with the stored waste. Waste transfer (between containers) is not allowed at the HWSU and containers remain closed at all times. Containers are stored on secondary containment pallets and the unit is inspected monthly. Table 1 provides the metric conversion factors used in this application. Table 2 provides a list of existing permits. Table 3 lists operational Resource Conservation and Recovery Act (RCRA) units at the NTS and their respective regulatory status.« less
Propulsion simulation test technique for V/STOL configurations
NASA Technical Reports Server (NTRS)
Bailey, R. O.; Smith, S. C.; Bustie, J. B.
1983-01-01
Ames Research Center is developing the technology for turbine-powered jet engine simulators so that airframe/propulsion system interactions on V/STOL fighter aircraft and other highly integrated configurations can be studied. This paper describes the status of the compact multimission aircraft propulsion simulator (CMAPS) technology. Three CMAPS units have accumulated a total of 340 hr during approximately 1-1/2 yr of static and wind-tunnel testing. A wind-tunnel test of a twin-engine CMAPS-equipped close-coupled canard-wing V/STOL model configuration with nonaxisymmetric nozzles was recently completed. During this test approximately 140 total hours were logged on two CMAPS units, indicating that the rotating machinery is reliable and that the CMAPS and associated control system provide a usable test tool. However, additional development is required to correct a drive manifold O-ring problem that limits the engine-pressure-ratio (EPR) to approximately 3.5.
ToxCast: Developing Predictive Signatures of Chemically Induced Toxicity (S)
ToxCast, the United States Environmental Protection Agency’s chemical prioritization research program, is developing methods for utilizing computational chemistry, bioactivity profiling and toxicogenomic data to predict potential for toxicity and prioritize limited testing resour...
Share the road campaign research study : final report
DOT National Transportation Integrated Search
2012-07-01
This report presents the Environmental Data Test Plan for the national evaluation of the Los Angeles (LA) Congestion Reduction Demonstration (Metro ExpressLanes) under the United States Department of Transportation (U.S. DOT) Congestion Reduction Dem...
NASA Technical Reports Server (NTRS)
Brown, David B.
1991-01-01
The results of research and development efforts of the first six months of Task 1, Phase 3 of the project are presented. The goals of Phase 3 are: (1) to further refine the rule base and complete the comparative rule base evaluation; (2) to implement and evaluate a concurrency testing prototype; (3) to convert the complete (unit-level and concurrency) testing prototype to a workstation environment; and (4) to provide a prototype development document to facilitate the transfer of research technology to a working environment. These goals were partially met and the results are summarized.
NASA Astrophysics Data System (ADS)
Fedyanov, E. A.; Sokolov-Dobrev, N. S.; Ljashenko, M. V.; Shekhovtsov, V. V.; Potapov, P. V.; Dolotov, A. A.; Klementiev, E. V.
2018-05-01
This article presents the description of the method for estimation of heat flows characteristic during research of operability of suspension elements under the conditions of ultralow temperature. The mentioned research is performed at the test bench created in VSTU. Solid carbon dioxide (also known as artificial ice) is used as the coolant. The method provides evaluation of required quantity of artificial ice and cooling dynamics of the test unit in the insulated low-temperature chamber with structurally specified parameters of heat insulation. Also the method allows computation of heat intake into the chamber volume.
1992-05-27
A NASA CV-990, modified as a Landing Systems Research Aircraft (LSRA), is serviced on the ramp at NASA's Dryden Flight Research Center, Edwards, California, before a test of the space shuttle landing gear system. The space shuttle landing gear test unit, operated by a high-pressure hydraulic system, allowed engineers to assess and document the performance of space shuttle main and nose landing gear systems, tires and wheel assemblies, plus braking and nose wheel steering performance. The series of 155 test missions for the space shuttle program provided extensive data about the life and endurance of the shuttle tire systems and helped raise the shuttle crosswind landing limits at Kennedy.
NASA Technical Reports Server (NTRS)
1994-01-01
A space shuttle landing gear system is visible between the two main landing gear components on this NASA CV-990, modified as a Landing Systems Research Aircraft (LSRA). The space shuttle landing gear test unit, operated by a high-pressure hydraulic system, allowed engineers to assess and document the performance of space shuttle main and nose landing gear systems, tires and wheel assemblies, plus braking and nose wheel steering performance. The series of 155 test missions for the space shuttle program, conducted at NASA's Dryden Flight Research Center, Edwards, California, provided extensive data about the life and endurance of the shuttle tire systems and helped raise the shuttle crosswind landing limits at Kennedy.
1996-11-19
The Pathfinder solar-powered research aircraft settles in for landing on the bed of Rogers Dry Lake at the Dryden Flight Research Center, Edwards, California, after a successful test flight Nov. 19, 1996. The ultra-light craft flew a racetrack pattern at low altitudes over the flight test area for two hours while project engineers checked out various systems and sensors on the uninhabited aircraft. The Pathfinder was controlled by two pilots, one in a mobile control unit which followed the craft, the other in a stationary control station. Pathfinder, developed by AeroVironment, Inc., is one of several designs being evaluated under NASA's Environmental Research Aircraft and Sensor Technology (ERAST) program.
The Plant Research Unit: Long-Term Plant Growth Support for Space Station
NASA Technical Reports Server (NTRS)
Heathcote, D. G.; Brown, C. S.; Goins, G. D.; Kliss, M.; Levine, H.; Lomax, P. A.; Porter, R. L.; Wheeler, R.
1996-01-01
The specifications of the plant research unit (PRU) plant habitat, designed for space station operations, are presented. A prototype brassboard model of the PRU is described, and the results of the subsystems tests are outlined. The effects of the long term red light emitting diode (LED) illumination as the sole source for plant development were compared with red LEDs supplemented with blue wavelengths, and white fluorescent sources. It was found that wheat and Arabidopsis were able to complete a life cycle under red LEDs alone, but with differences in physiology and morphology. The differences noted were greatest for the Arabidopsis, where the time to flowering was increased under red illumination. The addition of 10 percent of blue light was effective in eliminating the observed differences. The results of the comparative testing of three nutrient delivery systems for the PRU are discussed.
Complete NACA Muroc Staff of 1950, in front of original NACA building
NASA Technical Reports Server (NTRS)
1950-01-01
This group photo of National Advisory Committee for Aeronautics (NACA) employees was taken in 1950 in front of the NACA research building on South Base at Edwards Air Force Base, California. The team that had been established at Muroc Army Air Field in the later part of 1946 had grown to about 13 members at the beginning of 1947. In September of 1947 the group became known as the NACA Muroc Flight Test Unit with a complement of 27 employees by January 1948. In February 1948 the name of the base changed to Muroc Air Force Base and in 1949 would change again to Edwards Air Force Base. In November 1949 the NACA Muroc Flight Test Unit became the NACA High-Speed Flight Research Station. In January 1950 there were 132 employees with those numbers increasing to 196 by January 1952.
2003-04-03
Scaled Composites' Proteus aircraft and an F/A-18 Hornet from NASA's Dryden Flight Research Center at Mojave Airport in Southern California. The unique tandem-wing Proteus was the testbed for a series of UAV collision-avoidance flight demonstrations. An Amphitech 35GHz radar unit installed below Proteus' nose was the primary sensor for the Detect, See and Avoid tests. NASA Dryden's F/A-18 Hornet was one of many different aircraft used in the tests.
Biomedical technical transfer. Applications of NASA science and technology
NASA Technical Reports Server (NTRS)
1976-01-01
Lower body negative pressure testing in cardiac patients has been completed as well as the design and construction of a new leg negative unit for evaluating heart patients. This technology is based on NASA research, using vacuum chambers to stress the cardiovascular system during space flight. Additional laboratory tests of an intracranial pressure transducer, have been conducted. Three new biomedical problems to which NASA technology is applicable are also identified. These are: a communication device for the speech impaired, the NASA development liquid-cooled garment, and miniature force transducers for heart research.
Structural Dynamics Testing of Advanced Stirling Convertor Components
NASA Technical Reports Server (NTRS)
Oriti, Salvatore M.; Williams, Zachary Douglas
2013-01-01
NASA Glenn Research Center has been supporting the development of Stirling energy conversion for use in space. Lockheed Martin has been contracted by the Department of Energy to design and fabricate flight-unit Advanced Stirling Radioisotope Generators, which utilize Sunpower, Inc., free-piston Advanced Stirling Convertors. The engineering unit generator has demonstrated conversion efficiency in excess of 20 percent, offering a significant improvement over existing radioisotope-fueled power systems. NASA Glenn has been supporting the development of this generator by developing the convertors through a technology development contract with Sunpower, and conducting research and experiments in a multitude of areas, such as high-temperature material properties, organics testing, and convertor-level extended operation. Since the generator must undergo launch, several launch simulation tests have also been performed at the convertor level. The standard test sequence for launch vibration exposure has consisted of workmanship and flight acceptance levels. Together, these exposures simulate what a flight convertor will experience. Recently, two supplementary tests were added to the launch vibration simulation activity. First was a vibration durability test of the convertor, intended to quantify the effect of vibration levels up to qualification level in both the lateral and axial directions. Second was qualification-level vibration of several heater heads with small oxide inclusions in the material. The goal of this test was to ascertain the effect of the inclusions on launch survivability to determine if the heater heads were suitable for flight.
Use of technology as an evaluation tool of clinical care in preterm newborns.
Mendes, Izabel; Carvalho, Manoel de; Almeida, Rosimary Terezinha; Moreira, Maria Elizabeth
2006-01-01
To assess the use of the Neonatal Therapeutic Intervention Scoring System (NTISS) as a tool to quantify the use of technology in neonatal intensive care units, in order to detect discrepancies in the care provided to high-risk newborn infants. Prospective, descriptive, observational study about the use of technology in two neonatal intensive care units (one public and one private). The NTISS was calculated on a daily basis up to the discharge or death of preterm newborns with gestational age equal to or less than 32 weeks. We gathered data about prenatal clinical conditions, birth characteristics, and conditions on admission to the intensive care unit, as well as about the morbidities developed during the hospital stay. The risks of preterm newborns were adjusted by means of the Score for Neonatal Acute Physiology, Perinatal Extension, Version II (SNAPPE-II). Student's t test, chi-square test, Fisher's exact test, and the Mann-Whitney/Wilcoxon's test were used for the descriptive analysis. The study was approved by the local Research and Ethics Committee. We assessed 44 newborn infants from the public intensive care unit and 52 from the private one. On admission, the severity score (SNAPPE-II) and the overall NTISS were statistically similar in both care units. The curve for the use of technology showed a gradual and progressive decreasing pattern in both care units up to the 31st day. Thereafter, there was a continuous downward trend in the private care unit, but a significant increase in the overall NTISS in the public care unit. The patients from the public care unit developed more morbidities than those from the private unit. Patients with similar clinical pictures can be treated with different levels of technological resources. This may have a direct impact on morbidities and on healthcare costs. The NTISS allowed monitoring healthcare and proved efficient in detecting discrepancies in practices that could influence clinical outcomes and operating costs.
The in-process control of PVC sheath of a double core cable
NASA Astrophysics Data System (ADS)
Galeeva, N. S.; Redko, V. V.; Redko, L. A.
2018-01-01
In this work the possibility of the sheath hermiticity testing by measuring of the cable capacity per unit length variation during spark testing is considered. The research object is 2×0.75 HO3VVH2-F cable. According to the physical modelling it is proved that such defect of sheath as pinhole through the whole thickness of sheath can be registered for the test length 10 cm with test voltage frequencies 1kHz and 10kHz.
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
Testing of DentStat (trademark) and Competing Dental Materials
2014-06-13
NAVAL MEDICAL RESEARCH UNIT SAN ANTONIO TESTING OF DENTST AT™ AND COMPETING DENTAL MATERIALS Y OON HWANG PHD, JONATHAN STAHL DDS PHD, WAYNE M. D...LtCOL Wen Lien of the US Air Force Dental Evaluation and Consultation Service for assistance with the strength testing. 1 Reviewed and Approved by...direct dental repair materials. They are made of calcium or strontium aluminofluoro-silicate glass powder (base) combined with a water-soluble polymer
Central Asia in Context: Local Rules of the Great Game
2013-05-23
warheads to Russia by 1995, and dismantled the testing facility at Semipalatinsk by 2000. Likewise, they participated with the United States in PROJECT...to take small steps to test the reaction of the new international system, in order to develop more coherent long-term strategies. As Lena Jonson...between the variables.31 If certain variables are missing, or other extraneous variables are present, the researcher can conduct other tests to consider
ERIC Educational Resources Information Center
Parent, Mike C.; Torrey, Carrie; Michaels, Matthew S.
2012-01-01
Men who have sex with men (MSM) account for more than half of all new cases of HIV infection in the United States. Yet, many MSM are unaware of their HIV serostatus. Consistent with research indicating that gender role conformity impacts health behaviors, this study examined how masculine norms may influence HIV testing among MSM in the United…
ERIC Educational Resources Information Center
Croghan, Emma; Aveyard, Paul; Johnson, Carol
2005-01-01
Purpose: There is a discrepancy between the ease of purchase of cigarettes reported by young people themselves and the results of ease of purchase obtained by tests done by official sources such as Trading Standards Units. This discrepancy suggests that either data from young people or from trading standards are unreliable. This research set out…
NASA Technical Reports Server (NTRS)
Kenny, Barbara H.; Kascak, Peter E.; Hofmann, Heath; Mackin, Michael; Santiago, Walter; Jansen, Ralph
2001-01-01
This paper describes the flywheel test facility developed at the NASA Glenn Research Center with particular emphasis on the motor drive components and control. A four-pole permanent magnet synchronous machine, suspended on magnetic bearings, is controlled with a field orientation algorithm. A discussion of the estimation of the rotor position and speed from a "once around signal" is given. The elimination of small dc currents by using a concurrent stationary frame current regulator is discussed and demonstrated. Initial experimental results are presented showing the successful operation and control of the unit at speeds up to 20,000 rpm.
Cost analysis in a CMHC: determining the cost of staff time.
Haring, A; Eckert, C
1979-06-01
The program evaluation and research unit of a community mental health center developed and field-tested a survey form to measure how employees spend their time. The form is divided into direct patient care activities, which include interviewing and testing, conducting therapy, and prescribing medications, and administrative or support activities, which include filling out charts, attending meetings, and training staff. All staff record daily, for one week, the hours and minutes they spend in each activity. Using that data as a base, the evaluation unit can determine the percentage of time staff spend in each activity and the cost of each activity based on staff members' paychecks.
Summary of Research Activities Academic Departments 1981-1982.
1982-10-01
M12 MICROCOPY RESOLUTIONI TEST CHART NATION4AL BUREAU OF STAN4DARDS- 1963-A SUMMARY OF RESEARCH ACTIVITIES ACADEMIC I DEPARTMENTS 1 1981-1982 42 4...r I OFFICE OF THE ACADEMIC DEAN I UNITED STATES NAVAL ACADEMY ANNAPOLIS, MARYLAND li. 6 4 | I I SUMMARY OF IRESEARCH ACTIVITIES [ 1981 - 1982 i... activities that contribute to the professional growth of the faculty and outstanding midshipmen may flourish. * The research activities of the faculty
Military Relevant Infectious Diseases Endemic to Kenya: Vaccine and Clinical Trials and Entomology
2014-04-01
of Research (WRAIR) and its Special Foreign Activity (SFA) the U.S. Army Medical Research Unit Kenya (USAMRU-K). Previous support was provided under...Kisumu and its environs. Current efforts focus on drug sensitivity testing for antimalarials , vaccine trials and field research to determine vector...prophylaxis. Antimalarial drug sensitivity of isolates from defined populations in the region will continue to be monitored and data used to map the
NASA Technical Reports Server (NTRS)
1998-01-01
This artist's digital concept depicts the completely assembled International Space Station (ISS) passing over Florida. As a gateway to permanent human presence in space, the Space Station Program is to expand knowledge benefiting all people and nations. The ISS is a multidisciplinary laboratory, technology test bed, and observatory that will provide unprecedented undertakings in scientific, technological, and international experimentation. Experiments to be conducted in the ISS include: microgravity research, Earth science, space science, life sciences, space product development, and engineering research and technology. The sixteen countries participating the ISS are: United States, Russian Federation, Canada, Japan, United Kingdom, Germany, Italy, France, Norway, Netherlands, Belgium, Spain, Denmark, Sweden, Switzerland, and Brazil.
NASA Technical Reports Server (NTRS)
1998-01-01
This artist's concept depicts the completely assembled International Space Station (ISS) passing over the Straits of Gibraltar and the Mediterranean Sea. As a gateway to permanent human presence in space, the Space Station Program is to expand knowledge benefiting all people and nations. The ISS is a multidisciplinary laboratory, technology test bed, and observatory that will provide unprecedented undertakings in scientific, technological, and international experimentation. Experiments to be conducted in the ISS include: microgravity research, Earth science, space science, life sciences, space product development, and engineering research and technology. The sixteen countries participating the ISS are: United States, Russian Federation, Canada, Japan, United Kingdom, Germany, Italy, France, Norway, Netherlands, Belgium, Spain, Denmark, Sweden, Switzerland, and Brazil.
NASA Technical Reports Server (NTRS)
1998-01-01
This artist's concept depicts the completely assembled International Space Station (ISS) passing over Florida and the Bahamas. As a gateway to permanent human presence in space, the Space Station Program is to expand knowledge benefiting all people and nations. The ISS is a multidisciplinary laboratory, technology test bed, and observatory that will provide unprecedented undertakings in scientific, technological, and international experimentation. Experiments to be conducted in the ISS include: microgravity research, Earth science, space science, life sciences, space product development, and engineering research and technology. The sixteen countries participating in the ISS are: United States, Russian Federation, Canada, Japan, United Kingdom, Germany, Italy, France, Norway, Netherlands, Belgium, Spain, Denmark, Sweden, Switzerland, and Brazil.
International Space Station (ISS)
1998-01-01
This artist's concept depicts the completely assembled International Space Station (ISS) passing over Florida and the Bahamas. As a gateway to permanent human presence in space, the Space Station Program is to expand knowledge benefiting all people and nations. The ISS is a multidisciplinary laboratory, technology test bed, and observatory that will provide unprecedented undertakings in scientific, technological, and international experimentation. Experiments to be conducted in the ISS include: microgravity research, Earth science, space science, life sciences, space product development, and engineering research and technology. The sixteen countries participating in the ISS are: United States, Russian Federation, Canada, Japan, United Kingdom, Germany, Italy, France, Norway, Netherlands, Belgium, Spain, Denmark, Sweden, Switzerland, and Brazil.
International Space Station (ISS)
1998-01-01
This artist's digital concept depicts the completely assembled International Space Station (ISS) passing over Florida. As a gateway to permanent human presence in space, the Space Station Program is to expand knowledge benefiting all people and nations. The ISS is a multidisciplinary laboratory, technology test bed, and observatory that will provide unprecedented undertakings in scientific, technological, and international experimentation. Experiments to be conducted in the ISS include: microgravity research, Earth science, space science, life sciences, space product development, and engineering research and technology. The sixteen countries participating the ISS are: United States, Russian Federation, Canada, Japan, United Kingdom, Germany, Italy, France, Norway, Netherlands, Belgium, Spain, Denmark, Sweden, Switzerland, and Brazil.
ERIC Educational Resources Information Center
Passman, Roger
High stakes testing is a given in many public school districts in the United States. This paper reports the chilling effect high stakes testing had on the pedagogy of one teacher. The study took place in a large Midwestern urban district where a university consultant observed a fifth-grade classroom. This researcher was able to observe and…
ERIC Educational Resources Information Center
Boyles, Glenda F.
2011-01-01
International research and academic performance measures indicate that boys are scoring lower on standardized tests than girls in reading and writing. At the time of this study, boys had lower standardized test scores than girls in an elementary school in a southeastern state in the United States. The purpose of this qualitative case study was to…
Mark L. Messonnier; John C. Bergstrom; Chrisopher M. Cornwell; R. Jeff Teasley; H. Ken Cordell
2000-01-01
Simple nonresponse and selection biases that may occur in survey research such as contingent valuation applications are discussed and tested. Correction mechanisms for these types of biases are demonstrated. Results indicate the importance of testing and correcting for unit and item nonresponse bias in contingent valuation survey data. When sample nonresponse and...
ERIC Educational Resources Information Center
Sherman, Elyse J.; Primack, Brian A.
2009-01-01
Background: Cigarette use remains the leading preventable cause of death in the United States. Although school is an ideal setting for antismoking interventions, school-based programs have not been successful in the long term. The purpose of this study was to explore characteristics of programs deemed to be successful short-term Research-Tested…
On Developing Content-Oriented Theories Taking Biological Evolution as an Example
ERIC Educational Resources Information Center
Andersson, Bjorn; Wallin, Anita
2006-01-01
Both in Europe and the United States there is a growing interest in design research. One example is the design and validation of topic-oriented teaching-learning sequences. This research may be said to have two objectives. One is to design and test "useful products", such as teachers guides and study material for students, which may be…
ERIC Educational Resources Information Center
Austin, Gregory A., Ed.; And Others
This collection of abstracts from current research and theoretical studies explores various aspects of the relationship between non-opiate drug use and personality. The literature covers a period from 1968 through 1975 and focuses on tests that were conducted on adolescents and college students from the United States, Canada and Sydney, Australia.…
Fighting The Network: Manet Management In Support Of Littoral Operations
2016-03-01
Solomon , 2015). DL widens the scope of naval Surface Action Groups (SAG) operations, introducing the concept of Adaptive Force Package (AFP...be implemented in littoral tactical networks. CENETIX research utilizes three Wave Relay radio models for experimentation : the Man-Portable Unit...enable seamless continuity in the transfer of research knowledge to subsequent testing and CONOPS development. CENETIX field experimentation
Determination of service standard time for liquid waste parameter in certification institution
NASA Astrophysics Data System (ADS)
Sembiring, M. T.; Kusumawaty, D.
2018-02-01
Baristand Industry Medan is a technical implementation unit under the Industrial and Research and Development Agency, the Ministry of Industry. One of the services often used in Baristand Industry Medan is liquid waste testing service. The company set the standard of service 9 working days for testing services. At 2015, 89.66% on testing services liquid waste does not meet the specified standard of services company. The purpose of this research is to specify the standard time of each parameter in testing services liquid waste. The method used is the stopwatch time study. There are 45 test parameters in liquid waste laboratory. The measurement of the time done 4 samples per test parameters using the stopwatch. From the measurement results obtained standard time that the standard Minimum Service test of liquid waste is 13 working days if there is testing E. coli.
Characterization of the Advanced Stirling Radioisotope Generator Engineering Unit 2
NASA Technical Reports Server (NTRS)
Lewandowski, Edward J.; Oriti, Salvatore M.; Schifer, Niholas A.
2016-01-01
Significant progress was made developing the Advanced Stirling Radioisotope Generator (ASRG) 140-W radioisotope power system. While the ASRG flight development project has ended, the hardware that was designed and built under the project is continuing to be tested to support future Stirling-based power system development. NASA Glenn Research Center recently completed the assembly of the ASRG Engineering Unit 2 (EU2). The ASRG EU2 consists of the first pair of Sunpower's Advanced Stirling Convertor E3 (ASC-E3) Stirling convertors mounted in an aluminum housing, and Lockheed Martin's Engineering Development Unit (EDU) 4 controller (a fourth-generation controller). The ASC-E3 convertors and Generator Housing Assembly (GHA) closely match the intended ASRG Qualification Unit flight design. A series of tests were conducted to characterize the EU2, its controller, and the convertors in the flight-like GHA. The GHA contained an argon cover gas for these tests. The tests included measurement of convertor, controller, and generator performance and efficiency; quantification of control authority of the controller; disturbance force measurement with varying piston phase and piston amplitude; and measurement of the effect of spacecraft direct current (DC) bus voltage on EU2 performance. The results of these tests are discussed and summarized, providing a basic understanding of EU2 characteristics and the performance and capability of the EDU 4 controller.
7. Credit USAF, 1945. Original housed in the Muroc Flight ...
7. Credit USAF, 1945. Original housed in the Muroc Flight Test Base, Unit History, 1 September 1942 30 June 1945. Alfred F. Simpson Historical Research Agency. United States Air Force. Maxwell AFB, Alabama. Interior view in shop wing on south side of hangar. Original caption reads "7 Sept. 1945, BH-10, Hangar No. 4 4505 Machine Shop." - Edwards Air Force Base, North Base, Hangar, End of North Base Road, Boron, Kern County, CA
Hydrogen-Oxygen PEM Regenerative Fuel Cell Energy Storage System
NASA Technical Reports Server (NTRS)
Bents, David J.; Scullin, Vincent J.; Chang, Bei-Jiann; Johnson, Donald W.; Garcia, Christopher P.
2005-01-01
An introduction to the closed cycle hydrogen-oxygen polymer electrolyte membrane (PEM) regenerative fuel cell (RFC), recently constructed at NASA Glenn Research Center, is presented. Illustrated with explanatory graphics and figures, this report outlines the engineering motivations for the RFC as a solar energy storage device, the system requirements, layout and hardware detail of the RFC unit at NASA Glenn, the construction history, and test experience accumulated to date with this unit.
NASA Astrophysics Data System (ADS)
Arsawan, I. W. E.; Sanjaya, I. B.; Putra, I. K. M.; Sukarta, I. W.
2018-01-01
This study aims to examine the relationship between motivation and knowledge transfer to the subsidiaries performance and test the role of absorptive capacity as a moderating variable. The research uses quantitative design through questionnaires distribution with 5 Likert scales. The population frame is five-star hotel in Bali province, Indonesia which amounted to 63 units, the sample of research using proportional random sampling is 54 units and determined the distribution of questionnaires to 162 subsidiaries as the unit of analysis. The research model was built using the structural equation model and analyzed with smart pls- 3 software. The findings of the study revealed that subsidiaries motivation a significant effect on knowledge transfer, knowledge transfer a significant effect on subsidiaries performance, motivation a significant effect on subsidiaries performance and absorptive capacity moderated the relationship between knowledge transfer and subsidiaries performance. These findings suggest that subsidiaries and process of knowledge transfer through absorptive capacity play an important role, and that they have some impact on the subsidiaries performance.
Demonstration of laser speckle system on burner liner cyclic rig
NASA Technical Reports Server (NTRS)
Stetson, K. A.
1986-01-01
A demonstration test was conducted to apply speckle photogrammetry to the measurement of strains on a sample of combustor liner material in a cyclic fatigue rig. A system for recording specklegrams was assembled and shipped to the NASA Lewis Research Center, where it was set up and operated during rig tests. Data in the form of recorded specklegrams were sent back to United Technologies Research Center for processing to extract strains. Difficulties were found in the form of warping and bowing of the sample during the tests which degraded the data. Steps were taken by NASA personnel to correct this problem and further tests were run. Final data processing indicated erratic patterns of strain on the burner liner sample.
Evaluation of Acoustic Emission SHM of PRSEUS Composite Pressure Cube Tests
NASA Technical Reports Server (NTRS)
Horne, Michael R.; Madaras, Eric I.
2013-01-01
A series of tests of the Pultruded Rod Stitched Efficient Unitized Structure (PRSEUS) pressure cube were conducted during third quarter 2011 at NASA Langley Research Center (LaRC) in the Combined Loads Test facility (COLTS). This is a report of the analysis of the Acoustic Emission (AE) data collected during those tests. The AE signals of the later tests are consistent with the final failure progression through two of the pressure cube panels. Calibration tests and damage precursor AE indications, from preliminary checkout pressurizations, indicated areas of concern that eventually failed. Hence those tests have potential for vehicle health monitoring.
CV-990 Landing Systems Research Aircraft (LSRA) during Space Shuttle tire test
1995-08-02
A NASA CV-990, modified as a Landing Systems Research Aircraft (LSRA), lands on the Edwards AFB main runway in test of the space shuttle landing gear system. In this case, the shuttle tire failed, bursting into flame during the rollout. The space shuttle landing gear test unit, operated by a high-pressure hydraulic system, allowed engineers to assess and document the performance of space shuttle main and nose landing gear systems, tires and wheel assemblies, plus braking and nose wheel steering performance. The series of 155 test missions for the space shuttle program provided extensive data about the life and endurance of the shuttle tire systems and helped raise the shuttle crosswind landing limits at Kennedy. The CV-990 used as the LSRA was built in 1962 by the Convair Division of General Dynamics Corp., Ft. Worth, Texas, served as a research aircraft at Ames Research Center, Moffett Field, California, before it came to Dryden.
Sen, Soma; Nguyen, Hoang Dung; Kim, So Yung; Aguilar, Jemel
2017-01-02
Asian American and Pacific Islanders (AAPIs) are the fastest growing population in the United States with documented increases in HIV rates. AAPIs are as likely as other racial/ethnic groups to engage in HIV-related risk behaviors, while being concomitantly less likely to have been HIV tested. Testing is a critical step in HIV prevention. Research points to various barriers to HIV-related testing including HIV knowledge and attitude and stigma. However, these factors and their impact among AAPIs are poorly understood. Myths about this population's "model minority" status compound AAPIs' sociocultural factors including English language proficiency, access to healthcare, and a culture of "silence" that negatively influences HIV-related research. In this article, the authors review the scientific literature on knowledge, risk behavior, and stigma to document the current state of research. Based on the review the authors offer a set of research, policy, and practice recommendations for social workers and other service providers working with AAPIs.
Validation of Land Cover Maps Utilizing Astronaut Acquired Imagery
NASA Technical Reports Server (NTRS)
Estes, John E.; Gebelein, Jennifer
1999-01-01
This report is produced in accordance with the requirements outlined in the NASA Research Grant NAG9-1032 titled "Validation of Land Cover Maps Utilizing Astronaut Acquired Imagery". This grant funds the Remote Sensing Research Unit of the University of California, Santa Barbara. This document summarizes the research progress and accomplishments to date and describes current on-going research activities. Even though this grant has technically expired, in a contractual sense, work continues on this project. Therefore, this summary will include all work done through and 5 May 1999. The principal goal of this effort is to test the accuracy of a sub-regional portion of an AVHRR-based land cover product. Land cover mapped to three different classification systems, in the southwestern United States, have been subjected to two specific accuracy assessments. One assessment utilizing astronaut acquired photography, and a second assessment employing Landsat Thematic Mapper imagery, augmented in some cases, high aerial photography. Validation of these three land cover products has proceeded using a stratified sampling methodology. We believe this research will provide an important initial test of the potential use of imagery acquired from Shuttle and ultimately the International Space Station (ISS) for the operational validation of the Moderate Resolution Imaging Spectrometer (MODIS) land cover products.
Azarmnejad, Elham; Sarhangi, Forogh; Javadi, Mahrooz; Rejeh, Nahid
2015-04-19
Due to devastating effects of pain in neonates, it is very important to ease it though safe and feasible methods. This study was to determine the effect of familiar auditory stimuli on the arterial blood sampling (ABS) induced pain in term neonates. This study was done on 30 newborns hospitalized in neonate intensive care unit (NICU) of a hospital in Tehran. Research samples were selected by using convenience sampling and randomly divided into two groups of control and test. In the test group, the recorded mothers' voices were played for the newborns before and after blood sampling procedure. Then, pain measures were recorded 10 minutes before, during and 10 minutes after blood collection based on Neonatal Infant Pain Scale (NIPS); then the pain level changes were reviewed and studied. The findings showed significant differences between the control and test groups that indicating the effect of mother's voice on reducing the pain of neonates during the ABS (p<0.005). Research findings demonstrate that mother's voice reduces ABS induced pain in the term neonates.
Unitized Regenerative Fuel Cell System Development
NASA Technical Reports Server (NTRS)
Burke, Kenneth A.
2003-01-01
Unitized Regenerative Fuel Cells (URFC) have recently been developed by several fuel cell manufacturers. These manufacturers have concentrated their efforts on the development of the cell stack technology itself, and have not up to this point devoted much effort to the design and development of the balance of plant. A fuel cell technology program at the Glenn Research Center (GRC) that has as its goal the definition and feasibility testing of the URFC system balance of plant. Besides testing the feasibility, the program also intends to minimize the system weight, volume, and parasitic power as its goal. The design concept currently being developed uses no pumps to circulate coolant or reactants, and minimizes the ancillary components to only the oxygen and hydrogen gas storage tanks, a water storage tank, a loop heat pipe to control the temperature and two pressure control devices to control the cell stack pressures during operation. The information contained in this paper describes the design and operational concepts employed in this concept. The paper also describes the NASA Glenn research program to develop this concept and test its feasibility.
Spence Laschinger, Heather K; Finegan, Joan; Wilk, Piotr
2011-01-01
Unit-level leadership and structural empowerment play key roles in creating healthy work environments, yet few researchers have examined these contextual effects on nurses' well-being. The aim of this study was to test a multilevel model of structural empowerment examining the effect of nursing unit leadership quality and structural empowerment on nurses' experiences of burnout and job satisfaction and to examine the effect of a personal dispositional variable, core self-evaluation, on these nurse experiences. Nurses (n = 3,156) from 217 hospital units returned surveys that included measures of leader-member exchange, structural empowerment, burnout, core self-evaluation, and job satisfaction. Multilevel structural equation modeling was used to test the model. Nurses' shared perceptions of leader-member exchange quality on their units positively influenced their shared perceptions of unit structural empowerment (Level 2), which resulted in significantly higher levels of individual nurse job satisfaction (Level 1). Unit-level leader-member exchange quality also directly influenced individual nurse job satisfaction. Unit leader-member exchange quality and structural empowerment influenced emotional exhaustion and cynicism differentially. Higher unit-level leader-member exchange quality was associated with lower cynicism; higher unit-level structural empowerment was associated with lower emotional exhaustion. At Level 1, higher core self-evaluation was associated with lower levels of both emotional exhaustion and cynicism, both of which were associated with lower job satisfaction. This study provides a theoretical understanding of how unit leadership affects both unit- and individual-level outcomes.
Use of consensus development to establish national research priorities in critical care
Vella, Keryn; Goldfrad, Caroline; Rowan, Kathy; Bion, Julian; Black, Nick
2000-01-01
Objectives To test the feasibility of using a nominal group technique to establish clinical and health services research priorities in critical care and to test the representativeness of the group's views. Design Generation of topics by means of a national survey; a nominal group technique to establish the level of consensus; a survey to test the representativeness of the results. Setting United Kingdom and Republic of Ireland. Subjects Nominal group composed of 10 doctors (8 consultants, 2 trainees) and 2 nurses. Main outcome measure Level of support (median) and level of agreement (mean absolute deviation from the median) derived from a 9 point Likert scale. Results Of the 325 intensive care units approached, 187 (58%) responded, providing about 1000 suggestions for research. Of the 106 most frequently suggested topics considered by the nominal group, 37 attracted strong support, 48 moderate support and 21 weak support. There was more agreement after the group had met—overall mean of the mean absolute deviations from the median fell from 1.41 to 1.26. The group's views represented the views of the wider community of critical care staff (r=0.73, P<0.01). There was no significant difference in the views of staff from teaching or from non-teaching hospitals. Of the 37 topics that attracted the strongest support, 24 were concerned with organisational aspects of critical care and only 13 with technology assessment or clinical research. Conclusions A nominal group technique is feasible and reliable for determining research priorities among clinicians. This approach is more democratic and transparent than the traditional methods used by research funding bodies. The results suggest that clinicians perceive research into the best ways of delivering and organising services as a high priority. PMID:10753149
NASA Astrophysics Data System (ADS)
Luchau, David W.; Sinkevich, Valery G.; Wernsman, Bernard; Mulder, Daniel M.
1996-03-01
A final report on the output power characteristics and capabilities of the TOPAZ II Space Nuclear Power Unit Ya-21u is presented. Results showed that after a total of almost 8,000 hours of system testing in the U.S. and Russia, several emergency cooldowns, and three inadvertent air introductions to the interelectrode gap (IEG) that the TOPAZ II demonstrates the potential for providing reliable power in a space environment. Output power optimizations and system characteristics following a shock and vibration test are shown. These tests were performed using electrical heaters that simulate nuclear fuel heating. This paper will focus primarily on the changes in output power characteristics over the lifetime of Ya-21u. All U.S. testing was conducted at the Thermionic System Evaluation Test (TSET) Facility of the New Mexico Engineering Research Institute (NMERI) as a part of the TOPAZ International Program (TIP). TIP is managed by the Air Force Phillips Laboratory (PL) for the Ballistic Missile Defense Organization (BMDO).
NASA Astrophysics Data System (ADS)
Urban, James E.; Supra, Laura; MacKnight, Allen
2000-01-01
A unique combination of researchers are investigating biological and engineering aspects of a biological wastewater treatment system which could effectively function to treat gray water in a microgravity environment such as that on the International Space Station and human-occupied interplanetary spacecraft. As part of the effort, 23 bacterial strains have been isolated from a bioprocessor operating at unit gravity and various strain combinations have been tested in microgravity for survivability and reduction of total organic carbon in ersatz gray water. All tested strains survive equally well in microgravity and unit gravity and each is capable of reducing TOC in microgravity. While the results reported are encouraging, they also reveal that current testing procedures and equipment are inadequate for fully evaluating bioprocessing in microgravity. .
Troubled minds in the Gulf: mental health research in the United Arab Emirates (1989-2008).
Osman, Ossama T; Afifi, M
2010-07-01
This article aims to describe the characteristics of the United Arab Emirates (UAE) mental health research published from 1989 to 2008 in PubMed indexed journals to identify gaps and to suggest recommendations. Our sensitive PubMed search for general and mental health publications in Gulf Cooperation Council (GCC) countries and the UAE revealed a total of 192 mental health studies published in GCC countries over the past 20 years, which constituted less than 1% of the GCC total biomedical research. Most of the studies were from the UAE University and were either epidemiologic (48.98%) or psychometric (24.49%) with no studies addressing mental health systems research. Underrepresented were studies on health promotion and interdisciplinary, cross-cultural, ethnic, and gender research. There is a need for more international collaboration and for policies that link research conducted to services provided with longitudinal studies to test the long-term impact of early preventive interventions.
The use of plants for environmental monitoring and assessment.
Wang, W; Freemark, K
1995-04-01
This paper presents a critical review on phytotoxicity tests for environmental monitoring and assessment. Vascular macrophytes used in the laboratory testing are emphasized; algae are mentioned only for comparison. Several issues are discussed, including the rationale for and misconceptions about phytotoxicity tests, relation to regulation, status of phytotoxicity test protocols, advantages and disadvantages of phytotoxicity tests, and possible research directions. Aquatic and terrestrial macrophytes, along with algae, are essential components of ecosystems. Macrophytes are becoming more important for the monitoring and assessment of herbicides, effluents, and industrial chemicals. In the United States, Canada, and international organizations, phytotoxicity tests can be required for environmental monitoring and assessment in statutes such as Federal Insecticide, Fungicide, and Rodenticide Act; Toxic Substances Control Act; Water Quality Act; Canadian Pest Control Products Act; and Canadian Environmental Protection Act. Possible research directions for phytotoxicity tests are discussed relative to the role in regulations of industrial chemicals, effluents, hazardous waste sites, and pesticides.
Foucault, Surveillance, and Carbon Monoxide Testing Within Stop-Smoking Services
Ashton, Kathryn; Phillips, Rhiannon
2015-01-01
Health professionals have adopted proactive testing for early evidence of disease. Researchers have identified that this leads to enumerated understandings and shapes behavior in productive ways. Smoking-cessation advisors regularly test clients for carbon monoxide (CO), but client views of this had not previously been explored. We interviewed 23 clients of a United Kingdom-based stop-smoking service regarding their experiences of CO testing. The majority of participants were successful quitters. We used ATLAS.ti 7 as a data-management tool during structured qualitative analysis. Our findings reveal that clients believed the results of their CO tests. Many became enumerated in their understanding, and thus placed themselves in a hierarchy with other members of their group. Almost all clients found that knowing their CO test score was motivating. We conclude that additional research is needed to understand the experiences of CO testing among clients who do not quit. PMID:25294348
Single phase space laundry development
NASA Technical Reports Server (NTRS)
Colombo, Gerald V.; Putnam, David F.; Lunsford, Teddie D.; Streech, Neil D.; Wheeler, Richard R., Jr.; Reimers, Harold
1993-01-01
This paper describes a newly designed, 2.7 Kg (6 pound) capacity, laundry machine called the Single Phase Laundry (SPSL). The machine was designed to wash and dry crew clothing in a micro-gravity environment. A prototype unit was fabricated for NASA-JSC under a Small Business Innovated Research (SBIR) contract extending from September 1990 to January 1993. The unit employs liquid jet agitation, microwave vacuum drying, and air jet tumbling, which was perfected by KC-135 zero-g flight testing. Operation is completely automated except for loading and unloading clothes. The unit uses about 20 percent less power than a conventional household appliance.
United States and Russian Cooperation on Issues of Nuclear Nonproliferation
2005-06-01
Reactors ( RERTR ) This project works with Russia to facilitate conversion of its research and test reactors from highly enriched uranium (HEU) fuel...reactor fuel purchase, accelerated RERTR activities, and accelerated Material Conversion and Consolidation implementation. 89 j. Fissile Materials
ToxCast: Using high throughput screening to identify profiles of biological activity
ToxCast, the United States Environmental Protection Agency’s chemical prioritization research program, is developing methods for utilizing computational chemistry and bioactivity profiling to predict potential for toxicity and prioritize limited testing resources (www.epa.gov/toc...
Applications of high throughput screening to identify profiles of biological activity
ToxCast, the United States Environmental Protection Agency’s chemical prioritization research program, is developing methods for utilizing computational chemistry and bioactivity profiling to predict potential for toxicity and prioritize limited testing resources (www.epa.gov/toc...
Predictive In Vitro Screening of Environmental Chemicals – The ToxCast Project
ToxCast, the United States Environmental Protection Agency’s chemical prioritization research program, is developing methods for utilizing computational chemistry and bioactivity profiling to predict potential for toxicity and prioritize limited testing resources (www.epa.gov/toc...
2003-08-19
KENNEDY SPACE CENTER, FLA. - Research team members aboard one of the watercraft being utilized to conduct underwater acoustic research in the Launch Complex 39 turn basin monitor some of the project's equipment just released into the water. Several government agencies, including NASA, NOAA, the Navy, the Coast Guard, and the Florida Fish and Wildlife Commission are involved in the testing. The research involves demonstrations of passive and active sensor technologies, with applications in fields ranging from marine biological research to homeland security. The work is also serving as a pilot project to assess the cooperation between the agencies involved. Equipment under development includes a passive acoustic monitor developed by NASA’s Jet Propulsion Laboratory, and mobile robotic sensors from the Navy’s Mobile Diving and Salvage Unit.
2003-08-18
KENNEDY SPACE CENTER, FLA. - Justin Manley, of the National Oceanic and Atmospheric Administration, is a member of the research team conducting underwater acoustic research in the Launch Complex 39 turn basin near Launch Pad 39A. Several government agencies, including NASA, NOAA, the Navy, the Coast Guard, and the Florida Fish and Wildlife Commission are involved in the testing. The research involves demonstrations of passive and active sensor technologies, with applications in fields ranging from marine biological research to homeland security. The work is also serving as a pilot project to assess the cooperation between the agencies involved. Equipment under development includes a passive acoustic monitor developed by NASA’s Jet Propulsion Laboratory, and mobile robotic sensors from the Navy’s Mobile Diving and Salvage Unit.
2003-08-19
KENNEDY SPACE CENTER, FLA. - Research team members aboard one of the watercraft being utilized to conduct underwater acoustic research in the Launch Complex 39 turn basin release some of the project's equipment into the water. Several government agencies, including NASA, NOAA, the Navy, the Coast Guard, and the Florida Fish and Wildlife Commission are involved in the testing. The research involves demonstrations of passive and active sensor technologies, with applications in fields ranging from marine biological research to homeland security. The work is also serving as a pilot project to assess the cooperation between the agencies involved. Equipment under development includes a passive acoustic monitor developed by NASA’s Jet Propulsion Laboratory, and mobile robotic sensors from the Navy’s Mobile Diving and Salvage Unit.
2003-08-19
KENNEDY SPACE CENTER, FLA. - Research team members aboard one of the watercraft being utilized to conduct underwater acoustic research in the Launch Complex 39 turn basin retrieve some of the project's equipment from the water. Several government agencies, including NASA, NOAA, the Navy, the Coast Guard, and the Florida Fish and Wildlife Commission are involved in the testing. The research involves demonstrations of passive and active sensor technologies, with applications in fields ranging from marine biological research to homeland security. The work is also serving as a pilot project to assess the cooperation between the agencies involved. Equipment under development includes a passive acoustic monitor developed by NASA’s Jet Propulsion Laboratory, and mobile robotic sensors from the Navy’s Mobile Diving and Salvage Unit.
2003-08-19
KENNEDY SPACE CENTER, FLA. - A research team member aboard one of the watercraft being utilized to conduct underwater acoustic research in the Launch Complex 39 turn basin lifts some of the project's equipment from the water. Several government agencies, including NASA, NOAA, the Navy, the Coast Guard, and the Florida Fish and Wildlife Commission are involved in the testing. The research involves demonstrations of passive and active sensor technologies, with applications in fields ranging from marine biological research to homeland security. The work is also serving as a pilot project to assess the cooperation between the agencies involved. Equipment under development includes a passive acoustic monitor developed by NASA’s Jet Propulsion Laboratory, and mobile robotic sensors from the Navy’s Mobile Diving and Salvage Unit.
2003-08-19
KENNEDY SPACE CENTER, FLA. - A research team member aboard one of the watercraft being utilized to conduct underwater acoustic research in the Launch Complex 39 turn basin releases some of the project's equipment into the water. Several government agencies, including NASA, NOAA, the Navy, the Coast Guard, and the Florida Fish and Wildlife Commission are involved in the testing. The research involves demonstrations of passive and active sensor technologies, with applications in fields ranging from marine biological research to homeland security. The work is also serving as a pilot project to assess the cooperation between the agencies involved. Equipment under development includes a passive acoustic monitor developed by NASA’s Jet Propulsion Laboratory, and mobile robotic sensors from the Navy’s Mobile Diving and Salvage Unit.
2003-08-19
KENNEDY SPACE CENTER, FLA. - Research team members aboard one of the watercraft being utilized to conduct underwater acoustic research in the Launch Complex 39 turn basin prepare to release some of the project's equipment into the water. Several government agencies, including NASA, NOAA, the Navy, the Coast Guard, and the Florida Fish and Wildlife Commission are involved in the testing. The research involves demonstrations of passive and active sensor technologies, with applications in fields ranging from marine biological research to homeland security. The work is also serving as a pilot project to assess the cooperation between the agencies involved. Equipment under development includes a passive acoustic monitor developed by NASA’s Jet Propulsion Laboratory, and mobile robotic sensors from the Navy’s Mobile Diving and Salvage Unit.
2003-08-19
KENNEDY SPACE CENTER, FLA. - Research team members aboard one of the watercraft being utilized to conduct underwater acoustic research in the Launch Complex 39 turn basin secure some of the project's equipment back into the vessel. Several government agencies, including NASA, NOAA, the Navy, the Coast Guard, and the Florida Fish and Wildlife Commission are involved in the testing. The research involves demonstrations of passive and active sensor technologies, with applications in fields ranging from marine biological research to homeland security. The work is also serving as a pilot project to assess the cooperation between the agencies involved. Equipment under development includes a passive acoustic monitor developed by NASA’s Jet Propulsion Laboratory, and mobile robotic sensors from the Navy’s Mobile Diving and Salvage Unit.
2003-08-19
KENNEDY SPACE CENTER, FLA. - A research team member aboard one of the watercraft being utilized to conduct underwater acoustic research in the Launch Complex 39 turn basin prepares some of the project's equipment for placement in the water. Several government agencies, including NASA, NOAA, the Navy, the Coast Guard, and the Florida Fish and Wildlife Commission are involved in the testing. The research involves demonstrations of passive and active sensor technologies, with applications in fields ranging from marine biological research to homeland security. The work is also serving as a pilot project to assess the cooperation between the agencies involved. Equipment under development includes a passive acoustic monitor developed by NASA’s Jet Propulsion Laboratory, and mobile robotic sensors from the Navy’s Mobile Diving and Salvage Unit.
2003-08-18
KENNEDY SPACE CENTER, FLA. - Research team members roll out acoustic cable to the water's edge as others stand by in a watercraft during underwater acoustic research being conducted in the Launch Complex 39 turn basin. Several government agencies, including NASA, NOAA, the Navy, the Coast Guard, and the Florida Fish and Wildlife Commission are involved in the testing. The research involves demonstrations of passive and active sensor technologies, with applications in fields ranging from marine biological research to homeland security. The work is also serving as a pilot project to assess the cooperation between the agencies involved. Equipment under development includes a passive acoustic monitor developed by NASA’s Jet Propulsion Laboratory, and mobile robotic sensors from the Navy’s Mobile Diving and Salvage Unit.
Mazzei, Francesco; Gillan, Roslyn; Cloutier, Denise
2014-06-01
Limited research explores the experience of individuals with dementia in acute care geriatric psychiatry units. This observational case study examines the influence of the physical environment on behavior (wandering, pacing, door testing, congregation and seclusions) among residents in a traditional geriatric psychiatry unit who were then relocated to a purpose-built acute care unit. Purpose-built environments should be well suited to the needs of residents with dementia. Observed trends revealed differences in spatial behaviors in the pre- and post- environments attributable to the physical environment. Person-centred modifications to the current environment including concerted efforts to know residents are meaningful in fostering quality of life. Color coded environments (rooms vs dining areas etc.) to improve wayfinding and opportunities to personalize rooms that address the `hominess' of the setting also have potential. Future research could also seek the opinions of staff about the impact of the environment on them as well as residents. © The Author(s) 2013.
Physical Fitness Testing by the U.S. Air Force Academy, 1955-1981
1983-09-01
numerous knee and back injuries were incurred during 5BX testing causing the loss of productive man-hours. In one of Lt Colonel Cooper’s original...the test items will be changed periodically to prevent prospective candidates for admis- sion to the United States Air Force Academy from practic- ing...following text, reproduced in whole, is a careful consideration of all available PAE research through 1971. Its existence should prevent unnecessary
NASA Glenn Research Center Support of the ASRG Project
NASA Technical Reports Server (NTRS)
Wilson, Scott D.; Wong, Wayne A.
2014-01-01
A high efficiency radioisotope power system is being developed for long-duration NASA space science missions. The U.S. Department of Energy (DOE) managed a flight contract with Lockheed Martin Space Systems Company (LMSSC) to build Advanced Stirling Radioisotope Generators (ASRGs), with support from NASA Glenn Research Center (GRC). Sunpower Inc. held two parallel contracts to produce Advanced Stirling Convertors (ASCs), one with DOELockheed Martin to produce ASC-F flight units, and one with GRC for the production of ASC-E3 engineering unit pathfinders that are built to the flight design. In support of those contracts, GRC provided testing, materials expertise, government furnished equipment, inspections, and related data products to DOELockheed Martin and Sunpower. The technical support includes material evaluations, component tests, convertor characterization, and technology transfer. Material evaluations and component tests have been performed on various ASC components in order to assess potential life-limiting mechanisms and provide data for reliability models. Convertor level tests have been used to characterize performance under operating conditions that are representative of various mission conditions. Technology transfers enhanced contractor capabilities for specialized production processes and tests. Despite termination of flight ASRG contract, NASA continues to develop the high efficiency ASC conversion technology under the ASC-E3 contract. This paper describes key government furnished services performed for ASRG and future tests used to provide data for ongoing reliability assessments.
2006-01-01
representation of RAND intellectual property is provided for non- commercial use only. Permission is required from RAND to reproduce, or reuse in another...Law 97-219) created the Small Business Innovation Research (SBIR) program by mandating that all federal research, development, test , and evaluation (RDT...contractors and the small, technology-oriented business community. 6. Expand intellectual capital in the United States. POLICY OPTIONS FOR THE DOD SBIR PROGRAM
United States Air Force Summer Faculty Research Program (1986). Program Technical Report. Volume 2
1986-12-01
Villa- nueva bone stain for 48 hours. After staining the sections were cleaned in tap water, lightly sanded (600 grit wet/dry paper), washed and...research collaborator. 92-2 I. INTRODUCTION 5 I have been a microbiologist since 1957. I have done research on bacteria , yeasts and filamentous fungi, and...C. Tests for Bacterial Contamination. To determine if bacteria were contaminating the algal cultures, 0.1 ml of algal material was aseptically
NASA Technical Reports Server (NTRS)
Parada, N. D. J. (Principal Investigator); Moreira, M. A.
1983-01-01
Using digitally processed MSS/LANDSAT data as auxiliary variable, a methodology to estimate wheat (Triticum aestivum L) area by means of sampling techniques was developed. To perform this research, aerial photographs covering 720 sq km in Cruz Alta test site at the NW of Rio Grande do Sul State, were visually analyzed. LANDSAT digital data were analyzed using non-supervised and supervised classification algorithms; as post-processing the classification was submitted to spatial filtering. To estimate wheat area, the regression estimation method was applied and different sample sizes and various sampling units (10, 20, 30, 40 and 60 sq km) were tested. Based on the four decision criteria established for this research, it was concluded that: (1) as the size of sampling units decreased the percentage of sampled area required to obtain similar estimation performance also decreased; (2) the lowest percentage of the area sampled for wheat estimation with relatively high precision and accuracy through regression estimation was 90% using 10 sq km s the sampling unit; and (3) wheat area estimation by direct expansion (using only aerial photographs) was less precise and accurate when compared to those obtained by means of regression estimation.
2003-08-18
KENNEDY SPACE CENTER, FLA. - Dr. Grant Gilmore, Dynamac Corp., utilizes a laptop computer to explain aspects of the underwater acoustic research under way in the Launch Complex 39 turn basin. Several government agencies, including NASA, NOAA, the Navy, the Coast Guard, and the Florida Fish and Wildlife Commission are involved in the testing. The research involves demonstrations of passive and active sensor technologies, with applications in fields ranging from marine biological research to homeland security. The work is also serving as a pilot project to assess the cooperation between the agencies involved. Equipment under development includes a passive acoustic monitor developed by NASA’s Jet Propulsion Laboratory, and mobile robotic sensors from the Navy’s Mobile Diving and Salvage Unit.
DOE Office of Scientific and Technical Information (OSTI.GOV)
Middleton, M.G.; Sauber, R.S.
Two models of a high-efficiency compressor were manufactured in a pilot production run. These compressors were for low back-pressure applications. While based on a production compressor, there were many changes that required production process changes. Some changes were performed within our company and others were made by outside vendors. The compressors were used in top mount refrigerator-freezers and sold in normal distribution channels. Forty units were placed in residences for a one-year field test. Additional compressors were built so that a life test program could be performed. The results of the field test reveal a 27.0% improvement in energy consumptionmore » for the 18 ft/sup 3/ high-efficiency model and a 15.6% improvement in the 21 ft/sup 3/ improvement in the 21 ft/sup 3/ high-efficiency model as compared to the standard production unit.« less
Nunn, Amy; Yolken, Annajane; Cutler, Blayne; Trooskin, Stacey; Wilson, Phill; Little, Susan; Mayer, Kenneth
2014-05-01
African Americans and Hispanics are disproportionately affected by the HIV/AIDS epidemic. Within the most heavily affected cities, a few neighborhoods account for a large share of new HIV infections. Addressing racial and economic disparities in HIV infection requires an implementation program and research agenda that assess the impact of HIV prevention interventions focused on increasing HIV testing, treatment, and retention in care in the most heavily affected neighborhoods in urban areas of the United States. Neighborhood-based implementation research should evaluate programs that focus on community mobilization, media campaigns, routine testing, linkage to and retention in care, and block-by-block outreach strategies.
ERIC Educational Resources Information Center
Andrich, David; Marais, Ida; Humphry, Stephen Mark
2016-01-01
Recent research has shown how the statistical bias in Rasch model difficulty estimates induced by guessing in multiple-choice items can be eliminated. Using vertical scaling of a high-profile national reading test, it is shown that the dominant effect of removing such bias is a nonlinear change in the unit of scale across the continuum. The…
Tier One Performance Screen Initial Operational Test and Evaluation: 2011 Annual Report
2013-01-01
OPERATIONAL TEST AND EVALUATION: 2011 ANNUAL REPORT EXECUTIVE SUMMARY Research Requirement: In addition to educational, physical , and...34 Table 5.4. Incremental Validity Estimates for the TAPAS and TOPS Composite Scales over the AFQT for Predicting IMT Physical Fitness Criteria by...Validity Estimates for the TAPAS and TOPS Composite Scales over the AFQT for Predicting In-Unit Physical Fitness Criteria by Education Tier
United States Air Force Agency Financial Report 2014
2014-01-01
basic sciences and 45 semester hours in humanities and social sciences . This 90 semester hour total comprises 60 percent of the total academic...Test and Evaluation Support $723 F-35 $628 Defense Research Sciences $373 GPS III-Operational Control Segment $373 Long Range Strike Bomber $359...Development, Test & Evaluation Family Housing & Military Construction (Less: Earned Revenue) Net Cost before Losses/ (Gains) from Actuarial Assumption
ERIC Educational Resources Information Center
Beck, Klaus; Krumm, Volker
The lack of a German language testing instrument for economic literacy has led to problems for researchers in German-speaking countries to establish the level of economic literacy in those countries. The translation of the 23rd edition (1987) of the Test of Economic Literacy (TEL) into a German version, known as the Wirtschalfliche Bildung Test…
ERIC Educational Resources Information Center
Ricks, Rhonda A.
2013-01-01
The student populations in colleges and universities in the United States have become more diverse in the students that they serve. It has been argued that disaggregation of student data would allow researchers to test the saliency of student development models. However, there is only a small body of research available on first-year Black male…
ERIC Educational Resources Information Center
Agne, Russell M.
1972-01-01
Students in classes using a self-instructional unit on meteorology and climatology which provided research data from which generalizations could be drawn increased their critical thinking skills more than groups using conventional earth science texts but did not differ significantly in performance on an achievement test. (AL)
Cost-Benefit Analysis of the 2006 Air Force Materiel Command Test and Evaluation Proposal
2008-01-01
research organization providing objective analysis and effective solutions that address the challenges facing the public and private sectors...distribution unlimited The RAND Corporation is a nonprofit research organization providing objective analysis and effective solutions that address the...paper) 1. United States. Air Force Materiel Command—Reorganization—Cost effectiveness . I. Thirtle, Michael R., 1967– UG633.2.C67 2008
Development of a Combination Therapy for Prostate Cancer by Targeting Stat3 and HIF-1alpha
2011-07-01
isolated several novel molecules from Chinese herbal medicines. After activity tests of these molecules, we found one compound, TEL, that is a...research plan with three aims to expand these efforts. (1) To isolate and synthesize additional novel compounds from Chinese herbal medicines for... supplemented with 10% FBS, 100 units/ml penicillin, and 100 units/ ml streptomycin and maintained in a 378C CO2 incubator. 2 Reddyet al. The Prostate
Credit USAF, ca. 1943. Original housed in the Muroc Flight ...
Credit USAF, ca. 1943. Original housed in the Muroc Flight Test Base, Unit History, 1 September 1942 - 30 June 1945. Alfred F. Simpson Historical Research Agency. United States Air Force. Maxwell AFB, Alabama. Historic view looking north across southwest end of swimming pool as army personnel work on finishing the pool bottom. View looks towards Mess Hall (T-10) on Second Street - Edwards Air Force Base, North Base, Swimming Pool, Second Street, Boron, Kern County, CA
Tailored Training in Vehicle Maintenance Courses
2014-07-01
The use of the MCT was limited to the 91M test class during this research effort. There were no other limitations imposed by unit leaders on the MCT’s... one group size to another. Since previous discussions with unit training managers indicated about 80% of all training was designed to be executed in... designated small training groups of four to five Soldiers, it was decided that individual observers would be assigned to collect data on only one of
Functionalization of SBA-15 mesoporous silica by Cu-phosphonate units: Probing of synthesis route
DOE Office of Scientific and Technical Information (OSTI.GOV)
Laskowski, Lukasz, E-mail: lukasz.laskowski@kik.pcz.pl; Czestochowa University of Technology, Institute of Physics, Al. Armii Krajowej 19, 42-201 Czestochowa; Laskowska, Magdalena, E-mail: magdalena.laskowska@onet.pl
2014-12-15
Mesoporous silica SBA-15 containing propyl-copper phosphonate units was investigated. The structure of mesoporous samples was tested by N{sub 2} isothermal sorption (BET and BHJ analysis), TEM microscopy and X-Ray scattering. Quantitative analysis EDX has given information about proportions between component atoms in the sample. Quantitative elemental analysis has been carried out to support EDX. To examine bounding between copper atoms and phosphonic units the Raman spectroscopy was carried out. As a support of Raman scattering, the theoretical calculations were made based on density functional theory, with the B3LYP method. By comparison of the calculated vibrational spectra of the molecule withmore » experimental results, distribution of the active units inside silica matrix has been determined. - Graphical abstract: The present study is devoted to mesoporous silica SBA-15 containing propyl-copper phosphonate units. The species were investigated to confirm of synthesis procedure correctness by the micro-Raman technique combined with DFT numerical simulations. Complementary research was carried out to test the structure of mesoporous samples. - Highlights: • SBA-15 silica functionalized with propyl-copper phosphonate units was synthesized. • Synthesis efficiency probed by Raman study supported with DFT simulations. • Homogenous distribution of active units was proved. • Synthesis route enables precise control of distance between copper ions.« less
NASA Technical Reports Server (NTRS)
Malarik, Diane C.; Glicksman, Martin E.
1997-01-01
The scientific objective of the Isothermal Dendritic Growth Experiment (IDGE) is to test fundamental assumptions about dendritic solidification of molten materials. IDGE is a microgravity materials science experiment using apparatus that was designed, built, tested, and operated by people from the NASA Lewis Research Center. The IDGE experiment was conceived by the principal investigator, Professor Martin E. Glicksman from Rensselaer Polytechnic Institute in Troy, New York. This experiment was a team effort of civil servants from the NASA Lewis Research Center, contractors from Aerospace Design & Fabrication, Inc. (ADF), and personnel at Rensselaer.
SUPERFUND TREATABILITY CLEARINGHOUSE: FINAL ...
During the period of July 8 - July 12, 1985, the Shirco Infrared Systems Portable Pilot Test Unit was in operation at the Times Beach Dioxin Research Facility to demonstrate the capability of Shirco's infrared technology to decontaminate silty soil laden with 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) at a concentration range of 156 to 306 ppb. Emissions sampling and final analysis was performed by Environmental Research & Technology, Inc. (ERT), while laboratory analysis of the emissions and soil samples was performed by Roy F. Weston Inc. Shirco Infrared Systems prepared the testing procedure protocol and operated the furnace system. publish information
Hunter, R.B.; Collett, T.S.; Boswell, R.; Anderson, B.J.; Digert, S.A.; Pospisil, G.; Baker, R.; Weeks, M.
2011-01-01
The Mount Elbert Gas Hydrate Stratigraphic Test Well was drilled within the Alaska North Slope (ANS) Milne Point Unit (MPU) from February 3 to 19, 2007. The well was conducted as part of a Cooperative Research Agreement (CRA) project co-sponsored since 2001 by BP Exploration (Alaska), Inc. (BPXA) and the U.S. Department of Energy (DOE) in collaboration with the U.S. Geological Survey (USGS) to help determine whether ANS gas hydrate can become a technically and commercially viable gas resource. Early in the effort, regional reservoir characterization and reservoir simulation modeling studies indicated that up to 0.34 trillion cubic meters (tcm; 12 trillion cubic feet, tcf) gas may be technically recoverable from 0.92 tcm (33 tcf) gas-in-place within the Eileen gas hydrate accumulation near industry infrastructure within ANS MPU, Prudhoe Bay Unit (PBU), and Kuparuk River Unit (KRU) areas. To further constrain these estimates and to enable the selection of a test site for further data acquisition, the USGS reprocessed and interpreted MPU 3D seismic data provided by BPXA to delineate 14 prospects containing significant highly-saturated gas hydrate-bearing sand reservoirs. The "Mount Elbert" site was selected to drill a stratigraphic test well to acquire a full suite of wireline log, core, and formation pressure test data. Drilling results and data interpretation confirmed pre-drill predictions and thus increased confidence in both the prospect interpretation methods and in the wider ANS gas hydrate resource estimates. The interpreted data from the Mount Elbert well provide insight into and reduce uncertainty of key gas hydrate-bearing reservoir properties, enable further refinement and validation of the numerical simulation of the production potential of both MPU and broader ANS gas hydrate resources, and help determine viability of potential field sites for future extended term production testing. Drilling and data acquisition operations demonstrated that gas hydrate scientific research programs can be safely, effectively, and efficiently conducted within ANS infrastructure. The program success resulted in a technical team recommendation to project management to drill and complete a long-term production test within the area of existing ANS infrastructure. If approved by stakeholders, this long-term test would build on prior arctic research efforts to better constrain the potential gas rates and volumes that could be produced from gas hydrate-bearing sand reservoirs. ?? 2010 Elsevier Ltd.
Training Feedback Handbook. Research Product 83-7.
ERIC Educational Resources Information Center
Burnside, Billy L.; And Others
This handbook is designed to assist training developers and evaluators in structuring their collection of feedback data. Addressed first are various methods for collecting feedback data, including informal feedback, existing unit performance records, questionnaires, structured interviews, systematic observation, and testing. The next chapter, a…
ToxCast, the United States Environmental Protection Agency’s chemical prioritization research program, is developing methods for utilizing computational chemistry and bioactivity profiling to predict potential for toxicity and prioritize limited testing resources (www.epa.gov/toc...
DOT National Transportation Integrated Search
2012-12-31
The United States Department of Transportations (U.S. DOT) Research and Innovative Technology Administrations (RITA) John A. Volpe National Transportation Systems Center (Volpe Center), under the direction of the U.S. DOT Federal Railroad Admin...
Hibiscus acetosella 'Sahara Sunset'
USDA-ARS?s Scientific Manuscript database
The Agricultural Research Service, United States Department of Agriculture, hereby release to nurserymen a new African Hibiscus, Hibiscus acetosella Welw. ex Hiern., named ‘Sahara Sunset’. This cultivar, tested as HAC06-11 was selected from a group seedlings grown at the Thad Cochran Southern Horti...
The Research and Test of Fast Radio Burst Real-time Search Algorithm Based on GPU Acceleration
NASA Astrophysics Data System (ADS)
Wang, J.; Chen, M. Z.; Pei, X.; Wang, Z. Q.
2017-03-01
In order to satisfy the research needs of Nanshan 25 m radio telescope of Xinjiang Astronomical Observatory (XAO) and study the key technology of the planned QiTai radio Telescope (QTT), the receiver group of XAO studied the GPU (Graphics Processing Unit) based real-time FRB searching algorithm which developed from the original FRB searching algorithm based on CPU (Central Processing Unit), and built the FRB real-time searching system. The comparison of the GPU system and the CPU system shows that: on the basis of ensuring the accuracy of the search, the speed of the GPU accelerated algorithm is improved by 35-45 times compared with the CPU algorithm.
Management team learning orientation and business unit performance.
Bunderson, J Stuart; Sutcliffe, Kathleen M
2003-06-01
Although research has suggested that teams can differ in the extent to which they encourage proactive learning and competence development among their members (a team learning orientation), the performance consequences of these differences are not well understood. Drawing from research on goal orientation and team learning, this article suggests that, although a team learning orientation can encourage adaptive behaviors that lead to improved performance, it is also possible for teams to compromise performance in the near term by overemphasizing learning, particularly when they have been performing well. A test of this proposition in a sample of business unit management teams provides strong support. The results confirm that an appropriate emphasis on learning can have positive consequences for team effectiveness.
International Space Station (ISS)
1998-01-01
This artist's concept depicts the completely assembled International Space Station (ISS) passing over the Straits of Gibraltar and the Mediterranean Sea. As a gateway to permanent human presence in space, the Space Station Program is to expand knowledge benefiting all people and nations. The ISS is a multidisciplinary laboratory, technology test bed, and observatory that will provide unprecedented undertakings in scientific, technological, and international experimentation. Experiments to be conducted in the ISS include: microgravity research, Earth science, space science, life sciences, space product development, and engineering research and technology. The sixteen countries participating the ISS are: United States, Russian Federation, Canada, Japan, United Kingdom, Germany, Italy, France, Norway, Netherlands, Belgium, Spain, Denmark, Sweden, Switzerland, and Brazil.
NASA Technical Reports Server (NTRS)
Huff, H.; You, Z.; Williams, T.; Nichols, T.; Attia, J.; Fogarty, T. N.; Kirby, K.; Wilkins, R.; Lawton, R.
1998-01-01
As integrated circuits become more sensitive to charged particles and neutrons, anomalous performance due to single event effects (SEE) is a concern and requires experimental verification and quantification. The Center for Applied Radiation Research (CARR) at Prairie View A&M University has developed experiments as a participant in the NASA ER-2 Flight Program, the APEX balloon flight program and the Student Launch Program. Other high altitude and ground level experiments of interest to DoD and commercial applications are being developed. The experiment characterizes the SEE behavior of high speed and high density SRAM's. The system includes a PC-104 computer unit, an optical drive for storage, a test board with the components under test, and a latchup detection and reset unit. The test program will continuously monitor the stored checkerboard data pattern in the SW and record errors. Since both the computer and the optical drive contain integrated circuits, they are also vulnerable to radiation effects. A latchup detection unit with discrete components will monitor the test program and reset the system when necessary. The first results will be obtained from the NASA ER-2 flights, which are now planned to take place in early 1998 from Dryden Research Center in California. The series of flights, at altitudes up to 70,000 feet, and a variety of flight profiles should yield a distribution of conditions for correlating SEES. SEE measurements will be performed from the time of aircraft power-up on the ground throughout the flight regime until systems power-off after landing.
Refuge alternatives relief valve testing and design
Lutz, T.J.; Bissert, P.T.; Homce, G.T.; Yonkey, J.A.
2016-01-01
The U.S. National Institute for Occupational Safety and Health (NIOSH) has been researching refuge alternatives (RAs) since 2007. RAs typically have built-in pressure relief valves (PRVs) to prevent the unit from reaching unsafe pressures. The U.S. Mine Safety and Health Administration requires that these valves vent the chamber at a maximum pressure of 1.25 kPa (0.18 psi, 5.0 in. H2O), or as specified by the manufacturer, above mine atmospheric pressure in the RA. To facilitate PRV testing, an instrumented benchtop test fixture was developed using an off-the-shelf centrifugal blower and ductwork. Relief pressures and flow characteristics were measured for three units: (1) a modified polyvinyl chloride check valve, (2) an off-the-shelf brass/cast-iron butterfly check valve and (3) a commercially available valve that was designed specifically for one manufacturer’s steel prefabricated RAs and had been adapted for use in one mine operator’s built-in-place RA. PRVs used in tent-style RAs were not investigated. The units were tested with different modifications and configurations in order to check compliance with Title 30 Code of Federal Regulations, or 30 CFR, regulations. The commercially available relief valve did not meet the 30 CFR relief pressure specification but may meet the manufacturer’s specification. Alternative valve designs were modified to meet the 30 CFR relief pressure specification, but all valve designs will need further design research to examine survivability in the event of a 103 kPa (15.0 psi) impulse overpressure during a disaster. PMID:28018003
NASA Technical Reports Server (NTRS)
Kahn, Steven M.
2001-01-01
The University of California, Berkeley (UCB) served as the Principal Investigator institution for the United States participation in the development of the Reflection Grating Spectrometer (RGS) which included the design, development, fabrication, and testing of the Reflection Grating Assembly (RGA). UCB was assisted in this role by the Lawrence Livermore National Laboratory and Columbia University who provided the primary facilities, materials, services and personnel necessary to complete the development. UC Berkeley's Dr. Steven Kahn provided the technical and scientific oversight for the design. development and testing of the RGA units by monitoring the performance of the units at various stages in their development. Dr. Kahn was also the primary contact with the Space Research Organization of the Netherlands (SRON) and represented the RGA development at all SRON and European Space Agency (ESA) reviews of the RGA status. In accordance with the contract, the team designed and developed novel optical technology to meet the unique requirements of the RGS. The ESA XMM-Newton Mission carries two identical Reflection Grating Spectrometers (RGS) behind two of its three nested sets of Wolter I type mirrors. The instrument allows high-resolution measurements in the soft X-ray range (6 to 38 angstroms or 2.1 to 0.3 keV) with a maximum effective area of about 140 sq cm at 15 angstroms. Its design is optimized for the detection of the K-shell transitions of carbon, nitrogen, oxygen, neon, magnesium, and silicon. as well as the L shell transitions of iron. The RGA itself consists of two units. A structure for each unit was designed to hold up to 220 gratings. In its final configuration, one unit holds 182 gratings and the second hold 181 gratings.
NASA Astrophysics Data System (ADS)
Markus, Doron J.
Test anxiety is one of the most debilitating and disruptive factors associated with underachievement and failure in schools (Birenbaum, Menucha, Nasser, & Fadia, 1994; Tobias, 1985). Researchers have suggested that interventions that combine multiple test-anxiety reduction techniques are most effective at reducing test anxiety levels (Ergene, 2003). For the current study, involving 62 public high school students enrolled in advanced placement science courses, the researcher designed a multimodal intervention designed to reduce test anxiety. Analyses were conducted to assess the relationships among test anxiety levels, unit examination scores, and irregular multiple-choice error patterns (error clumping), as well as changes in these measures after the intervention. Results indicate significant, positive relationships between some measures of test anxiety and error clumping, as well as significant, negative relationships between test anxiety levels and student achievement. In addition, results show significant decreases in holistic measures of test anxiety among students with low anxiety levels, as well as decreases in Emotionality subscores of test anxiety among students with high levels of test anxiety. There were no significant changes over time in the Worry subscores of test anxiety. Suggestions for further research include further confirmation of the existence of error clumping, and its causal relationship with test anxiety.
NASA Astrophysics Data System (ADS)
Budiman, Kholiq; Prahasto, Toni; Kusumawardhani, Amie
2018-02-01
This research has applied an integrated design and development of planning information system, which is been designed using Enterprise Architecture Planning. Frequent discrepancy between planning and realization of the budget that has been made, resulted in ineffective planning, is one of the reason for doing this research. The design using EAP aims to keep development aligned and in line with the strategic direction of the organization. In the practice, EAP is carried out in several stages of the planning initiation, identification and definition of business functions, proceeded with architectural design and EA implementation plan that has been built. In addition to the design of the Enterprise Architecture, this research carried out the implementation, and was tested by several methods of black box and white box. Black box testing method is used to test the fundamental aspects of the software, tested by two kinds of testing, first is using User Acceptance Testing and the second is using software functionality testing. White box testing method is used to test the effectiveness of the code in the software, tested using unit testing. Tests conducted using white box and black box on the integrated planning information system, is declared successful. Success in the software testing can not be ascertained if the software built has not shown any distinction from prior circumstance to the development of this integrated planning information system. For ensuring the success of this system implementation, the authors test consistency between the planning of data and the realization of prior-use of the information system, until after-use information system. This consistency test is done by reducing the time data of the planning and realization time. From the tabulated data, the planning information system that has been built reduces the difference between the planning time and the realization time, in which indicates that the planning information system can motivate the planner unit in realizing the budget that has been designed. It also proves that the value chain of the information planning system has brought implications for budget realization.
The Effects of Science Models on Students' Understanding of Scientific Processes
NASA Astrophysics Data System (ADS)
Berglin, Riki Susan
This action research study investigated how the use of science models affected fifth-grade students' ability to transfer their science curriculum to a deeper understanding of scientific processes. This study implemented a variety of science models into a chemistry unit throughout a 6-week study. The research question addressed was: In what ways do using models to learn and teach science help students transfer classroom knowledge to a deeper understanding of the scientific processes? Qualitative and quantitative data were collected through pre- and post-science interest inventories, observations field notes, student work samples, focus group interviews, and chemistry unit tests. These data collection tools assessed students' attitudes, engagement, and content knowledge throughout their chemistry unit. The results of the data indicate that the model-based instruction program helped with students' engagement in the lessons and understanding of chemistry content. The results also showed that students displayed positive attitudes toward using science models.
1983-06-01
energy. A distance of 50 ft was maintained between source and detector for one test and 25 ft for the other tests. Since the seismic unit was capable...during the tests. After a recording was made, the seismic source and geophone were each moved 5 ft, thus maintaining the 50- or 25-ft source-to- detector ...produced by cavities; therefore, detection using this technique was not achieved. The sensitivity of the uphole refraction method to the presence of
Compressive Testing of Stitched Frame and Stringer Alternate Configurations
NASA Technical Reports Server (NTRS)
Leone, Frank A., Jr.; Jegley, Dawn C.
2016-01-01
A series of single-frame and single-stringer compression tests were conducted at NASA Langley Research Center on specimens harvested from a large panel built using the Pultruded Rod Stitched Efficient Unitized Structure (PRSEUS) concept. Different frame and stringer designs were used in fabrication of the PRSEUS panel. In this report, the details of the experimental testing of single-frame and single-stringer compression specimens are presented, as well as discussions on the performance of the various structural configurations included in the panel.
Progress in aeronautical research and technology applicable to civil air transports
NASA Technical Reports Server (NTRS)
Bower, R. E.
1981-01-01
Recent progress in the aeronautical research and technology program being conducted by the United States National Aeronautics and Space Administration is discussed. Emphasis is on computational capability, new testing facilities, drag reduction, turbofan and turboprop propulsion, noise, composite materials, active controls, integrated avionics, cockpit displays, flight management, and operating problems. It is shown that this technology is significantly impacting the efficiency of the new civil air transports. The excitement of emerging research promises even greater benefits to future aircraft developments.
Levy, Matthew E; Wilton, Leo; Phillips, Gregory; Glick, Sara Nelson; Kuo, Irene; Brewer, Russell A; Elliott, Ayana; Watson, Christopher; Magnus, Manya
2014-05-01
Structural-level factors have contributed to the substantial disproportionate rates of HIV among Black men who have sex with men (BMSM) in the United States. Despite insufficient HIV testing patterns, however, there is a void in research investigating the relationship between structural factors and access to HIV testing and prevention services among BMSM. Building on previous scholarly work and incorporating a dynamic social systems conceptual framework, we conducted a comprehensive review of the literature on structural barriers to HIV testing and prevention services among BMSM across four domains: healthcare, stigma and discrimination, incarceration, and poverty. We found that BMSM experience inadequate access to culturally competent services, stigma and discrimination that impede access to services, a deficiency of services in correctional institutions, and limited services in areas where BMSM live. Structural interventions that eliminate barriers to HIV testing and prevention services and provide BMSM with core skills to navigate complex systems are needed.
Wilton, Leo; Phillips, Gregory; Glick, Sara Nelson; Kuo, Irene; Brewer, Russell A.; Elliott, Ayana; Watson, Christopher; Magnus, Manya
2015-01-01
Structural-level factors have contributed to the substantial disproportionate rates of HIV among Black men who have sex with men (BMSM) in the United States. Despite insufficient HIV testing patterns, however, there is a void in research investigating the relationship between structural factors and access to HIV testing and prevention services among BMSM. Building on previous scholarly work and incorporating a dynamic social systems conceptual framework, we conducted a comprehensive review of the literature on structural barriers to HIV testing and prevention services among BMSM across four domains: healthcare, stigma and discrimination, incarceration, and poverty. We found that BMSM experience inadequate access to culturally competent services, stigma and discrimination that impede access to services, a deficiency of services in correctional institutions, and limited services in areas where BMSM live. Structural interventions that eliminate barriers to HIV testing and prevention services and provide BMSM with core skills to navigate complex systems are needed. PMID:24531769
Converting energy to medical progress [nuclear medicine
DOE Office of Scientific and Technical Information (OSTI.GOV)
NONE
2001-04-01
For over 50 years the Office of Biological and Environmental Research (BER) of the United States Department of Energy (DOE) has been investing to advance environmental and biomedical knowledge connected to energy. The BER Medical Sciences program fosters research to develop beneficial applications of nuclear technologies for medical diagnosis and treatment of many diseases. Today, nuclear medicine helps millions of patients annually in the United States. Nearly every nuclear medicine scan or test used today was made possible by past BER-funded research on radiotracers, radiation detection devices, gamma cameras, PET and SPECT scanners, and computer science. The heart of biologicalmore » research within BER has always been the pursuit of improved human health. The nuclear medicine of tomorrow will depend greatly on today's BER-supported research, particularly in the discovery of radiopharmaceuticals that seek specific molecular and genetic targets, the design of advanced scanners needed to create meaningful images with these future radiotracers, and the promise of new radiopharmaceutical treatments for cancers and genetic diseases.« less
Converting Energy to Medical Progress [Nuclear Medicine
DOE R&D Accomplishments Database
2001-04-01
For over 50 years the Office of Biological and Environmental Research (BER) of the United States Department of Energy (DOE) has been investing to advance environmental and biomedical knowledge connected to energy. The BER Medical Sciences program fosters research to develop beneficial applications of nuclear technologies for medical diagnosis and treatment of many diseases. Today, nuclear medicine helps millions of patients annually in the United States. Nearly every nuclear medicine scan or test used today was made possible by past BER-funded research on radiotracers, radiation detection devices, gamma cameras, PET and SPECT scanners, and computer science. The heart of biological research within BER has always been the pursuit of improved human health. The nuclear medicine of tomorrow will depend greatly on today's BER-supported research, particularly in the discovery of radiopharmaceuticals that seek specific molecular and genetic targets, the design of advanced scanners needed to create meaningful images with these future radiotracers, and the promise of new radiopharmaceutical treatments for cancers and genetic diseases.
Design and Checkout of a High Speed Research Nozzle Evaluation Rig
NASA Technical Reports Server (NTRS)
Castner, Raymond S.; Wolter, John D.
1997-01-01
The High Flow Jet Exit Rig (HFJER) was designed to provide simulated mixed flow turbojet engine exhaust for one- seventh scale models of advanced High Speed Research test nozzles. The new rig was designed to be used at NASA Lewis Research Center in the Nozzle Acoustic Test Rig and the 8x6 Supersonic Wind Tunnel. Capabilities were also designed to collect nozzle thrust measurement, aerodynamic measurements, and acoustic measurements when installed at the Nozzle Acoustic Test Rig. Simulated engine exhaust can be supplied from a high pressure air source at 33 pounds of air per second at 530 degrees Rankine and nozzle pressure ratios of 4.0. In addition, a combustion unit was designed from a J-58 aircraft engine burner to provide 20 pounds of air per second at 2000 degrees Rankine, also at nozzle pressure ratios of 4.0. These airflow capacities were designed to test High Speed Research nozzles with exhaust areas from eighteen square inches to twenty-two square inches. Nozzle inlet flow measurement is available through pressure and temperature sensors installed in the rig. Research instrumentation on High Speed Research nozzles is available with a maximum of 200 individual pressure and 100 individual temperature measurements. Checkout testing was performed in May 1997 with a 22 square inch ASME long radius flow nozzle. Checkout test results will be summarized and compared to the stated design goals.
NASA Astrophysics Data System (ADS)
Kerlínová, Věra
2017-01-01
Within the long-term pedagogical research ongoing since the school year 2008/2009 to 2015/2016 at the secondary vocational school in Bohumín was through of Entrance test of physics, which included curriculum of the sixth to ninth year of elementary school, regularly finding out, in which parts of Entrance test - Unit conversions, International System of Units, Properties of matter, Mechanics, Thermodynamics, Electricity and Magnetism, Optics, Atoms and Universe - pupils of the 1st years of secondary vocational school, technical and non-technical, reach a higher number of correct answers, in which dominates the wrong answers and which parts of the test pupils are better left out completely. It turned out that the results of these tests are very informative not only for theoretical and practical teaching, but also technical and other science subjects. The results of the Entrance tests are also a valuable source of information for continuous innovation Workbook of Physics - Mechanics for the 1st year of secondary vocational schools [1] - whose the first version began during the school year 2007/2008 and which was tested within pre-research in school years 2008/2009, 2009/2010 and within research in school year 2010/2011. On the basis of feedbacks getting from research the Workbook is regularly expanded, innovated and updated. The Workbook consists of parts dedicated to physical concepts, physical tasks, proposals to physical experiments, pupils comments from viewed video projection and documentary films, examples from the world of science and technology, examples from practice and real life, physical terminology in English, quizzes, competitions, interesting things and links related to discussed curriculum. The Workbook is divided into thematic sections, chapters and subchapters similar as physics textbooks for pupils of the 1st years of Secondary Schools in the Czech Republic. In the Workbook there are included tasks on fill in the words, polynomial tasks with choice answer "one right answer", tasks assignment, tasks to sketching to the pictures and physical tasks including graphic sketches. Long-term research through the Entrance test of physics and the use of the Workbook in physics teaching will continue in the school year 2016/2017 and not just among pupils of the 1st years of secondary vocational school, but also pupils at grammar school, where the research was conducted in the school year 2010/2011 and 2014/2015.
Green Propulsion Auxiliary Power Unit Demonstration at MSFC
NASA Technical Reports Server (NTRS)
Robinson, Joel W.
2014-01-01
In 2012, the National Aeronautics & Space Administration (NASA) Space Technology Mission Directorate (STMD) began the process of building an integrated technology roadmap, including both technology pull and technology push strategies. Technology Area 1 (TA-01)1 for Launch Propulsion Systems is one of fourteen TAs that provide recommendations for the overall technology investment strategy and prioritization of NASA's space technology activities. Identified within TA-01 was the need for a green propulsion auxiliary power unit (APU) for hydraulic power by 2015. Engineers led by the author at the Marshall Space Flight Center (MSFC) have been evaluating green propellant alternatives and have begun the development of an APU test bed to demonstrate the feasibility of use. NASA has residual APU assets remaining from the retired Space Shuttle Program. Likewise, the F-16 Falcon fighter jet also uses an Emergency Power Unit (EPU) that has similar characteristics to the NASA hardware. Both EPU and APU components have been acquired for testing at MSFC. This paper will summarize the status of the testing efforts of green propellant from the Air Force Research Laboratory (AFRL) propellant AFM315E based on hydroxyl ammonium nitrate (HAN) with these test assets.
Testing low cost anaerobic digestion (AD) systems
USDA-ARS?s Scientific Manuscript database
To evaluate the potential for low technology and low cost digesters for small dairies, BARC and researchers from the University of Maryland installed six modified Taiwanese-model field-scale (FS) digesters near the original dairy manure digester. The FS units receive the same post-separated liquid ...
ToxCast, the United States Environmental Protection Agency’s chemical prioritization research program, is developing methods for utilizing computational chemistry, bioactivity profiling and toxicogenomic data to predict potential for toxicity and prioritize limited testing resour...
Garratt-Reed, David; Roberts, Lynne D; Heritage, Brody
2016-01-01
There has been a recent rapid growth in the number of psychology courses offered online through institutions of higher education. The American Psychological Association has highlighted the importance of ensuring the effectiveness of online psychology courses (Halonen et al., 2013). Despite this, there have been inconsistent findings regarding student grades, satisfaction, and retention in online psychology units. Equivalency Theory (Simonson, 1999; Simonson et al., 1999) posits that online and classroom-based learners will attain equivalent learning outcomes when equivalent learning experiences are provided. We present a study of an online introductory psychology unit designed to provide equivalent learning experiences to the pre-existing face-to-face version of the unit. Using quasi-experimental methods, academic performance, student feedback, and retention data from 866 Australian undergraduate psychology students were examined to assess whether the online unit developed to provide equivalent learning experiences produced comparable outcomes to the 'traditional' unit delivered face-to-face. Student grades did not significantly differ between modes of delivery, except for a group-work based assessment where online students performed more poorly. Student satisfaction was generally high in both modes of the unit, with group-work the key source of dissatisfaction in the online unit. The results provide partial support for Equivalency Theory. The group-work based assessment did not provide an equivalent learning experience for students in the online unit highlighting the need for further research to determine effective methods of engaging students in online group activities. Consistent with previous research, retention rates were significantly lower in the online unit, indicating the need to develop effective strategies to increase online retention rates. While this study demonstrates successes in presenting students with an equivalent learning experience, we recommend that future research investigate means of successfully facilitating collaborative group-work assessment, and to explore contributing factors to actual student retention in online units beyond that of non-equivalent learning experiences.
Garratt-Reed, David; Roberts, Lynne D.; Heritage, Brody
2016-01-01
There has been a recent rapid growth in the number of psychology courses offered online through institutions of higher education. The American Psychological Association has highlighted the importance of ensuring the effectiveness of online psychology courses (Halonen et al., 2013). Despite this, there have been inconsistent findings regarding student grades, satisfaction, and retention in online psychology units. Equivalency Theory (Simonson, 1999; Simonson et al., 1999) posits that online and classroom-based learners will attain equivalent learning outcomes when equivalent learning experiences are provided. We present a study of an online introductory psychology unit designed to provide equivalent learning experiences to the pre-existing face-to-face version of the unit. Using quasi-experimental methods, academic performance, student feedback, and retention data from 866 Australian undergraduate psychology students were examined to assess whether the online unit developed to provide equivalent learning experiences produced comparable outcomes to the ‘traditional’ unit delivered face-to-face. Student grades did not significantly differ between modes of delivery, except for a group-work based assessment where online students performed more poorly. Student satisfaction was generally high in both modes of the unit, with group-work the key source of dissatisfaction in the online unit. The results provide partial support for Equivalency Theory. The group-work based assessment did not provide an equivalent learning experience for students in the online unit highlighting the need for further research to determine effective methods of engaging students in online group activities. Consistent with previous research, retention rates were significantly lower in the online unit, indicating the need to develop effective strategies to increase online retention rates. While this study demonstrates successes in presenting students with an equivalent learning experience, we recommend that future research investigate means of successfully facilitating collaborative group-work assessment, and to explore contributing factors to actual student retention in online units beyond that of non-equivalent learning experiences. PMID:27242587
2017-03-01
research design flaw, “the pretesting process may have affected the ability to correctly classify subjects on the post - test ,” they conclude their results...Value Detainee Interrogation Group (HIG) in response to the highly publicized post -9/11 interrogation tactics the United States used on terrorist...in response to the highly publicized post -9/11 interrogation tactics the United States used on terrorist suspects.13 Part of the group’s mission was
2015-11-09
missile warning, weather and intelligence warfighting support. AFSPC operates sensors that provide direct attack warning and assessment to U.S...toughness combinations. AFRL conducted low-speed wind tunnel tests of 9%-scale model completed at NASA Langley Research Center (LaRC); data validated... wireless mobile monitoring capability designed for dismounted Pararescue Jumpers (PJ) called United States Air Force 89 Battlefield Airmen Trauma
9. Credit USAF, ca. 1945. Original housed in the Muroc ...
9. Credit USAF, ca. 1945. Original housed in the Muroc Flight Test Base, Unit History, 1 September 1942 - 30 June 1945. Alfred F. Simpson Historical Research Agency. United States Air Force. Maxwell AFB, Alabama. View of concrete base and brackets of jet engine rotor balancing machine. Location where photograph was taken not determined, but presumed to be in shops of Building 4505. - Edwards Air Force Base, North Base, Hangar, End of North Base Road, Boron, Kern County, CA
8. Credit USAF, ca. 1945. Original housed in the Muroc ...
8. Credit USAF, ca. 1945. Original housed in the Muroc Flight Test Base, Unit History, 1 September 1942 - 30 June 1945. Alfred F. Simpson Historical Research Agency. United States Air Force. Maxwell AFB, Alabama. View of concrete base for jet engine rotor balancing machine. Location where photograph was taken not determined, but presumed to be in shops of Building 4505 which had a sizeable machine shop. - Edwards Air Force Base, North Base, Hangar, End of North Base Road, Boron, Kern County, CA
Research Requirements for Future Visual Guidance Systems
1994-02-01
age in the 1960’s, and attendant higher speeds and aircraft sizes, improvements in signage became imperative. The John F. Kennedy ( JFK ) Airport in New...been carried out in the United States at JFK Airport in New York in the late 1980’s (reference 21). The costs of retrofitting the SEATAC airport with...Previous testing of abbreviated stop bars had been carried out in the United States at JFK Airport in New York in the late 1980’s. The costs of
Magnetotelluric Data, Mid Valley, Nevada Test Site, Nevada
Williams, Jackie M.; Wallin, Erin L.; Rodriguez, Brian D.; Lindsey, Charles R.; Sampson, Jay A.
2007-01-01
Introduction The United States Department of Energy (DOE) and the National Nuclear Security Administration (NNSA) at their Nevada Site Office (NSO) are addressing ground-water contamination resulting from historical underground nuclear testing through the Environmental Management (EM) program and, in particular, the Underground Test Area (UGTA) project. One issue of concern is the nature of the somewhat poorly constrained pre-Tertiary geology and its effects on ground-water flow. Ground-water modelers would like to know more about the hydrostratigraphy and geologic structure to support a hydrostratigraphic framework model that is under development for the Rainier Mesa/Shoshone Mountain Corrective Action Unit (CAU). During 2003, the U.S. Geological Survey (USGS), in cooperation with the DOE and NNSA-NSO, collected and processed data at the Nevada Test Site in and near Yucca Flat (YF) to help define the character, thickness, and lateral extent of the pre-Tertiary confining units. We collected 51 magnetotelluric (MT) and audio-magnetotelluric (AMT), stations for that research. In early 2005 we extended that research with 26 additional MT data stations, located on and near Rainier Mesa and Shoshone Mountain (RM-SM). The new stations extended the area of the hydrogeologic study previously conducted in Yucca Flat. This work was done to help refine what is known about the character, thickness, and lateral extent of pre-Tertiary confining units. In particular, a major goal was to define the upper clastic confining unit (UCCU). The UCCU is comprised of late Devonian to Mississippian siliciclastic rocks assigned to the Eleana Formation and Chainman Shale. The UCCU underlies the Yucca Flat area and extends westward towards Shoshone Mountain, southward to Buckboard Mesa, and northward to Rainier Mesa. Late in 2005 we collected another 14 MT stations in Mid Valley and in northern Yucca Flat basin. That work was done to better determine the extent and thickness of the UCCU near the southeastern RM-SM CAU boundary with the southwestern YF CAU, and also in the northern YF CAU. The purpose of this report is to release the MT data at those 14 stations. No interpretation of the data is included here.
A Regional Applied Research Effort project with EPA Region 10, ORD and USGS was initiated as a result of a baseline ecological risk assessment (BERA) problem formulation for the Upper Columbia River (UCR) site in northwest Washington. The UCR site is a 165-mile stretch of the Col...
Synthesis of the Insecticide Prothrin and Its Analogues from Biomass-Derived 5-(Cloromethyl)furfural
2013-12-19
the same synthetic approach. Preliminary testing of these furan-based pyrethroids against the yellow fever mosquito Aedes aegypti indicates promising...approach. Preliminary testing of these furan-based pyrethroids against the yellow fever mosquito Aedes aegypti indicates promising insecticidal... Aedes aegypti (established 1952) was reared in the insectary of the Mosquito and Fly Research Unit at the Center for Medical, Agricultural, and Veterinary
Concept Development for Future Domains: A New Method of Knowledge Elicitation
2005-06-01
Procedure: U.S. Army Research Institute for the Behavioral and Social Sciences (ARI) examined methods to generate, refine, test , and validate new...generate, elaborate, refine, describe, test , and validate new Future Force concepts relating to doctrine, tactics, techniques, procedures, unit and team...System (Harvey, 1993), and the Job Element Method (Primoff & Eyde , 1988). Figure 1 provides a more comprehensive list of task analytic methods. Please see
ERIC Educational Resources Information Center
Turkmen, Hakan; Buyukaltay, Didem
2015-01-01
In this study, the effect of using Jigsaw II and Jigsaw IV techniques on the subject of "Atoms-The Basic Unit of Matter" in science course of 6th grade on academic achievement was examined. Pre-test post-test control group research was used in the study. Study population is all secondary schools in Turgutlu district of Manisa province…
Postdoctoral Professional Fellowships in Laboratory Medicine.
Straseski, Joely A
2013-04-01
Doctoral level scientists often pursue a traditional academic route, focusing their efforts on research and education. However, additional options exist for those that are interested in using their laboratory and research skills in a clinical setting. Clinical laboratory directors serve as the interface between the clinical laboratory and the users of laboratory test results. This article describes these career paths options for PhD scientists. Clinical laboratory directors are primarily trained via one of two routes: physicians that have been trained in clinical pathology or non-physician doctoral scientists that have completed professional fellowship training. This article will focus on the latter of these 2 routes. In the United States, completing a postdoctoral fellowship in laboratory-specific professional fields qualifies non-physician doctoral scientists as laboratory directors and consultants. Their expert consultation provides invaluable insight into testing procedures such as possible sources of interference or inaccurate test results, preferred testing for specific clinical situations, and confirmatory methods. They must also be knowledgeable about current instrumentation, assay limitations, and the newest available technologies. One of the older and more developed professional fellowships in the United States, clinical chemistry, encompasses many laboratory disciplines and will be highlighted in detail. Training information specific to clinical immunology, clinical microbiology, and clinical genetics is also discussed.
Truck Thermoacoustic Generator and Chiller
DOE Office of Scientific and Technical Information (OSTI.GOV)
Keolian, Robert
2011-03-31
This Final Report describes the accomplishments of the US Department of Energy (DOE) cooperative agreement project DE-FC26-04NT42113 - Truck Thermoacoustic Generator and Chiller - whose goal is to design, fabricate and test a thermoacoustic piezoelectric generator and chiller system for use on over-the-road heavy-duty-diesel trucks, driven alternatively by the waste heat of the main diesel engine exhaust or by a burner integrated into the thermoacoustic system. The thermoacoustic system would utilize engine exhaust waste heat to generate electricity and cab air conditioning, and would also function as an auxiliary power unit (APU) for idle reduction. The unit was to bemore » tested in Volvo engine performance and endurance test cells and then integrated onto a Class 8 over-the-road heavy-duty-diesel truck for further testing on the road. The project has been a collaboration of The Pennsylvania State University Applied Research Laboratory, Los Alamos National Laboratory, Clean Power Resources Inc., and Volvo Powertrain (Mack Trucks Inc.). Cost share funding was provided by Applied Research Laboratory, and by Clean Power Resources Inc via its grant from Innovation Works - funding that was derived from the Commonwealth of Pennsylvania. Los Alamos received its funding separately through DOE Field Work Proposal 04EE09.« less
1983-04-01
BAY, TACOMA, WASHINGTON PREPARED BY: FISHERIES RESEARCH INSTITUTE University of Washington DTIC C. A ELECTE JUL11 1985 DISTRIBUTIONSTATEMENT A...Nakatani 9. PERFORMING ORGANIZATION NAME AND ADDRESS 10. PROGRAM ELEMENT. PROJECT, TASK Fisheries Research Institute AREA & WORK UNIT NUMBERS School of... Fisheries WH-10 University of Washington Seattle, Washington 98195 11. CONTROLLING OFFICE NAME AND ADDRESS 12. REPORT DATE US Army Corps of Engineers
Counter-Attrition Programs in the United States Armed Forces
1984-07-01
the average pretest - posttest improvement of ART students on the Gates-MacGinitie Reading Test was 2.5 RGL. No comparison control group change scores...retraining programs, elaborate quasi - experimentation could be readily built Into the existing operational system. Every major installation has one or more...research on teach-n. Chicago: Rand McNally, 1963, pp. 171-246. Reprinted as Experimental and quasi - experimental designs for research. Chicago: Rand
Development of Medical Technology for Contingency Response to Marrow Toxic Agents
2014-07-25
Research in Transplantation : Create a platform that facilitates multicenter collaboration and data management. 15. SUBJECT TERMS Research in HLA ...Confirmatory Testing OTTR Organ Transplant Tracking Record CTA Clinical Trial Application P2P Peer-to-Peer PBMC Peripheral Blood Mononuclear Cells...NUMBER Project 1, 2, 3, 4 5f. WORK UNIT NUMBER N/A 7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) National Marrow Donor Program 3001
NASA Astrophysics Data System (ADS)
Oliver, Joseph Steve; Hodges, Georgia W.; Moore, James N.; Cohen, Allan; Jang, Yoonsun; Brown, Scott A.; Kwon, Kyung A.; Jeong, Sophia; Raven, Sara P.; Jurkiewicz, Melissa; Robertson, Tom P.
2017-11-01
Research into the efficacy of modules featuring dynamic visualizations, case studies, and interactive learning environments is reported here. This quasi-experimental 2-year study examined the implementation of three interactive computer-based instructional modules within a curricular unit covering cellular biology concepts in an introductory high school biology course. The modules featured dynamic visualizations and focused on three processes that underlie much of cellular biology: diffusion, osmosis, and filtration. Pre-tests and post-tests were used to assess knowledge growth across the unit. A mixture Rasch model analysis of the post-test data revealed two groups of students. In both years of the study, a large proportion of the students were classified as low-achieving based on their pre-test scores. The use of the modules in the Cell Unit in year 2 was associated with a much larger proportion of the students having transitioned to the high-achieving group than in year 1. In year 2, the same teachers taught the same concepts as year 1 but incorporated the interactive computer-based modules into the cell biology unit of the curriculum. In year 2, 67% of students initially classified as low-achieving were classified as high-achieving at the end of the unit. Examination of responses to assessments embedded within the modules as well as post-test items linked transition to the high-achieving group with correct responses to items that both referenced the visualization and the contextualization of that visualization within the module. This study points to the importance of dynamic visualization within contextualized case studies as a means to support student knowledge acquisition in biology.
DOE Office of Scientific and Technical Information (OSTI.GOV)
McDade, Mark
2016-12-01
The Department of Energy/National Renewable Energy Laboratory (DOE/NREL) owns and operates a megawatt-scale dynamometer used for testing wind turbine drive trains up to 1.5 megawatt (MW) in rated capacity. At this time, this unit is the only unit of its type in the United States, available for use by the American Wind Industry. Currently this dynamometer is heavily backlogged and unavailable to provide testing needed by various wind industry members. DOE/NREL is in possession of two critical pieces of equipment that may be used to develop an alternative Dynamometer facility, but does not have the funds or other resources necessarymore » to develop such a facility. The Participant possesses complimentary facilities and infrastructure that when combined with the NREL equipment can create such a test facility. The Participant is also committed to expending funds to develop and operate such a facility to the subsequent benefit of the Wind Industry and DOE Wind Energy program. In exchange for DOE/NREL providing the critical equipment, the Participant will grant DOE/NREL a minimum of 90 days of testing time per year in the new facility while incurring no facilities fees.« less
Developing emotional intelligence ability in oncology nurses: a clinical rounds approach.
Codier, Estelle; Freitas, Beth; Muneno, Lynn
2013-01-01
To explore the feasibility and impact of an emotional intelligence ability development program on staff and patient care. A mixed method, pre/post-test design. A tertiary care hospital in urban Honolulu, HI. Rounds took place on a 24-bed inpatient oncology unit. 33 RNs in an oncology unit. After collection of baseline data, the emotional intelligence rounds were conducted in an inpatient oncology nursing unit on all shifts during a 10-month period. Demographic information, emotional intelligence scores, data from rounds, chart reviews of emotional care documentation, and unit-wide satisfaction and safety data. The ability to identify emotions in self and others was demonstrated less frequently than expected in this population. The low test response rate prevented comparison of scores pre- and postintervention. The staff's 94% participation in rounds, the positive (100%) evaluation of rounds, and poststudy improvements in emotional care documentation and emotional care planning suggest a positive effect from the intervention. Additional research is recommended over a longer period of time to evaluate the impact emotional intelligence specifically has on the staff's identification of emotions. Because the intervention involved minimal time and resources, feasibility for continuation of the intervention poststudy was rated "high" by the research team. Research in other disciplines suggests that improvement in emotional intelligence ability in clinical staff nurses may improve retention, performance, and teamwork in nursing, which would be of particular significance in high-risk clinical practice environments. Few research studies have explored development of emotional intelligence abilities in clinical staff nurses. Evidence from this study suggests that interventions in the clinical environment may be used to develop emotional intelligence ability. Impact from such development may be used in the future to not only improve the quality of nursing care, but also potentially limit the negative effects of high-stress environments on nurses.
DOE Office of Scientific and Technical Information (OSTI.GOV)
Buchholz, Stuart A.
This memorandum documents laboratory thermomechanical triaxial strength testing of Waste Isolation Pilot Plant (WIPP) clean salt. The limited study completed independent, adjunct laboratory tests in the United States to assist in validating similar testing results being provided by the German facilities. The testing protocol consisted of completing confined triaxial, constant strain rate strength tests of intact WIPP clean salt at temperatures of 25°C and 100°C and at multiple confining pressures. The stratigraphy at WIPP also includes salt that has been labeled “argillaceous.” The much larger test matrix conducted in Germany included both the so-called clean and argillaceous salts. When combined,more » the total database of laboratory results will be used to develop input parameters for models, assess adequacy of existing models, and predict material behavior. These laboratory studies are also consistent with the goals of the international salt repository research program. The goal of this study was to complete a subset of a test matrix on clean salt from the WIPP undertaken by German research groups. The work was performed at RESPEC in Rapid City, South Dakota. A rigorous Quality Assurance protocol was applied, such that corroboration provides the potential of qualifying all of the test data gathered by German research groups.« less
Summary Report on Solid-oxide Electrolysis Cell Testing and Development
DOE Office of Scientific and Technical Information (OSTI.GOV)
J.E. O'Brien; X. Zhang; R.C. O'Brien
2012-01-01
Idaho National Laboratory (INL) has been researching the application of solid-oxide electrolysis cells (SOECs) for large-scale hydrogen production from steam over a temperature range of 800 to 900 C. From 2003 to 2009, this work was sponsored by the United States Department of Energy Nuclear Hydrogen Initiative, under the Office of Nuclear Energy. Starting in 2010, the high-temperature electrolysis (HTE) research program has been sponsored by the INL Next Generation Nuclear Plant Project. This report provides a summaryof program activities performed in Fiscal Year (FY) 2011 and the first quarter of FY-12, with a focus on small-scale testing and cellmore » development activities. HTE research priorities during this period have included the development and testing of SOEC and stack designs that exhibit high-efficiency initial performance and low, long-term degradation rates. This report includes contributions from INL and five industry partners: Materials and Systems Research, Incorporated (MSRI); Versa Power Systems, Incorporated (VPS); Ceramatec, Incorporated; National Aeronautics and Space Administration - Glenn Research Center (NASA - GRC); and the St. Gobain Advanced Materials Division. These industry partners have developed SOEC cells and stacks for in-house testing in the electrolysis mode and independent testing at INL. Additional fundamental research and post-test physical examinations have been performed at two university partners: Massachusetts Institute of Technology (MIT) and the University of Connecticut. Summaries of these activities and test results are also presented in this report.« less
NASA Technical Reports Server (NTRS)
DeLaat, John C.; Breisacher, Kevin J.
2000-01-01
Low-emission combustor designs are prone to combustor instabilities. Because active control of these instabilities may allow future combustors to meet both stringent emissions and performance requirements, an experimental combustor rig was developed for investigating methods of actively suppressing combustion instabilities. The experimental rig has features similar to a real engine combustor and exhibits instabilities representative of those in aircraft gas turbine engines. Experimental testing in the spring of 1999 demonstrated that the rig can be tuned to closely represent an instability observed in engine tests. Future plans are to develop and demonstrate combustion instability control using this experimental combustor rig. The NASA Glenn Research Center at Lewis Field is leading the Combustion Instability Control program to investigate methods for actively suppressing combustion instabilities. Under this program, a single-nozzle, liquid-fueled research combustor rig was designed, fabricated, and tested. The rig has many of the complexities of a real engine combustor, including an actual fuel nozzle and swirler, dilution cooling, and an effusion-cooled liner. Prior to designing the experimental rig, a survey of aircraft engine combustion instability experience identified an instability observed in a prototype engine as a suitable candidate for replication. The frequency of the instability was 525 Hz, with an amplitude of approximately 1.5-psi peak-to-peak at a burner pressure of 200 psia. The single-nozzle experimental combustor rig was designed to preserve subcomponent lengths, cross sectional area distribution, flow distribution, pressure-drop distribution, temperature distribution, and other factors previously found to be determinants of burner acoustic frequencies, mode shapes, gain, and damping. Analytical models were used to predict the acoustic resonances of both the engine combustor and proposed experiment. The analysis confirmed that the test rig configuration and engine configuration had similar longitudinal acoustic characteristics, increasing the likelihood that the engine instability would be replicated in the rig. Parametric analytical studies were performed to understand the influence of geometry and condition variations and to establish a combustion test plan. Cold-flow experiments verified that the design values of area and flow distributions were obtained. Combustion test results established the existence of a longitudinal combustion instability in the 500-Hz range with a measured amplitude approximating that observed in the engine. Modifications to the rig configuration during testing also showed the potential for injector independence. The research combustor rig was developed in partnership with Pratt & Whitney of West Palm Beach, Florida, and United Technologies Research Center of East Hartford, Connecticut. Experimental testing of the combustor rig took place at United Technologies Research Center.
Parent, Mike C; Torrey, Carrie; Michaels, Matthew S
2012-07-01
Men who have sex with men (MSM) account for more than half of all new cases of HIV infection in the United States. Yet, many MSM are unaware of their HIV serostatus. Consistent with research indicating that gender role conformity impacts health behaviors, this study examined how masculine norms may influence HIV testing among MSM in the United States. Data from 170 self-identified MSM (age M = 46.45, SD = 12.18) of self-reported negative or unknown HIV serostatus living in the United States were used in this study. About half (52%) of participants reported that they had been tested for HIV within the past 12 months; 48% reported that they had not. Logistic regression was used to examine the association between domains of masculine gender role conformity and HIV testing within the past 12 months, controlling for number of sexual partners in the last 12 months. The masculine norm of heterosexual self-presentation (i.e., desire to be perceived by others as heterosexual) was negatively associated with HIV testing (B = -0.74, SE B = 0.36, O.R. = 0.48, 95% CI [0.24, 0.96]), after controlling for the effect of number of sexual partners. Psychologists and other health professionals may remain mindful of potential implications of HIV testing among MSM, including potential for MSM to view HIV testing as an "outing" procedure.
MORICE--new technology for mechanical oil recovery in ice infested waters.
Jensen, Hans V; Mullin, Joseph V
2003-01-01
Mechanical oil recovery in ice infested waters (MORICE) was initiated in 1995 to develop technology for the recovery of oil spills in ice. It has been a multinational effort involving Norwegian, Canadian, American and German organizations and researchers. Through a stepwise approach with the development organized in six separate phases, laboratory tests and field experiments have been conducted to study various ideas and concepts, and to refine the ideas that were considered to have the best potential for removing oil in ice. Put together in one unit, these concepts included ice processing equipment and two alternative oil recovery units installed on a work platform. In January 2002, the final oil and ice testing with MORICE concepts was conducted at the Ohmsett test facility in Leonardo, New Jersey. The unit has been referred to as a harbor version to indicate the size and operating conditions, but the concepts could be scaled up to increase the capacity of oil and ice processing. For heavier ice conditions it would also be necessary to increase the overall strength.
Bringing Exoplanet Habitability Investigations to High School
NASA Astrophysics Data System (ADS)
Woody, M. A.; Sohl, L. E.
2016-12-01
Habitability, a.k.a. habitat suitability, is a topic typically discussed in Biology class. We present here a curriculum unit that introduces the topic in a Physics classroom, allowing students to engage in cutting-edge science and re-framing an otherwise "typical" unit. Unit development was made possible by the Climate Change Research Initiative (CCRI) at the NASA Goddard Institute for Space Studies, a year-long program that partners a scientist-mentor with a high school educator to engage in research and curriculum development. At its core, habitability is a temperature-dependent quality that is introduced and explored during the Energy unit. Students conducted a research project with the goal of determining the habitability state for a chosen exoplanet. Classroom implementation was modeled after the scientist-mentor's actual research plan, with content and resources for lesson activities also contributed by the scientist. Students first engaged in discussion of 5 basic habitability factors and explored these variables through climate modeling software. Students then chose an exoplanet to examine through the lens of those habitability factors, an activity that required them to perform authentic research on the exoplanet and its host star. Students also developed hypotheses about factors beyond currently available mission data, such as atmospheric composition and surface albedo of their exoplanet. They then used the modeling software to collect data, test hypotheses, and draw conclusions. Lastly, students communicated their findings in a poster session and presentation at the high school's annual science symposium. This scientist/educator partnership had a strongly positive impact on the high school students involved. By bringing actual science and research practices to the classroom, the students were not only more actively engaged with the required Physics course content, but also gained a better understanding of how scientific research is done.
Using a handbook to improve nurses' continence care.
Williams, K; Roe, B; Sindhu, F
Nursing care should be based on sound research evidence with demonstrated clinical effectiveness. Dissemination of this research evidence is, therefore, of paramount importance. A study using focus groups was undertaken during 1993-1994 to evaluate the dissemination of a clinical handbook for continence care to qualified nurses, in relation to reported nursing practice in care of the elderly wards/units in one health authority. A total of 124 nurses participated in the study and 98 variables were included. Improvements were recorded in nurses' responses between the pre-test and post-test for 84 (86 per cent) variables in the experimental group and 58 (59 per cent) in the control group. This demonstrates the positive value of the clinical handbook as a method of disseminating research evidence.
NASA Astrophysics Data System (ADS)
Quebedeaux, James Edward
The focus of this study was to identify major conceptual difficulties that selected public high school physical science students encounter in understanding a standard electromagnetic spectrum diagram. A research-driven, modified version of that standard diagram was used in this study to determine the value added to student understanding of electromagnetic waves. A content analysis was performed on electromagnetic spectrum diagrams found in US textbooks from the 1950s through the present. A class of public high school physical science students participated in a study consisting of four activities conducted during a three-week unit. Students were given a pre- and post-achievement test and a pre- and post-survey on the regions of the electromagnetic spectrum. At the conclusion of each activity, selected students were interviewed and each co-constructed a concept map with the researcher. The Electromagnetic Spectrum Literacy Rubric (ESLR) was designed and used to assess students' conceptual understanding periodically as they proceeded through the unit study. A mixed methods analysis was performed, employing both qualitative and quantitative data. A paired t-test determined that there was a statistically significant difference (p = 0.014) between the pre- and post-achievement test scores for the class of students participating in the unit study. Effect sizes also determined that students have difficulties with mathematical calculations and wave properties. These topics present conceptual challenges which must be overcome to understand and use an electromagnetic spectrum diagram effectively.
HIFIRE Flight 2 Overview and Status Update 2011
NASA Technical Reports Server (NTRS)
Jackson, Kevin R.; Gruber, Mark R.; Buccellato, Salvatore
2011-01-01
A collaborative international effort, the Hypersonic International Flight Research Experimentation (HIFiRE) Program aims to study basic hypersonic phenomena through flight experimentation. HIFiRE Flight 2 teams the United States Air Force Research Lab (AFRL), NASA, and the Australian Defence Science and Technology Organisation (DSTO). Flight 2 will develop an alternative test technique for acquiring high enthalpy scramjet flight test data, allowing exploration of accelerating hydrocarbon-fueled scramjet performance and dual-to-scram mode transition up to and beyond Mach 8 flight. The generic scramjet flowpath is research quality and the test fuel is a simple surrogate for an endothermically cracked liquid hydrocarbon fuel. HIFiRE Flight 2 will be a first of its kind in contribution to scramjets. The HIFiRE program builds upon the HyShot and HYCAUSE programs and aims to leverage the low-cost flight test technique developed in those programs. It will explore suppressed trajectories of a sounding rocket propelled test article and their utility in studying ramjet-scramjet mode transition and flame extinction limits research. This paper describes the overall scramjet flight test experiment mission goals and objectives, flight test approach and strategy, ground test and analysis summary, development status and project schedule. A successful launch and operation will present to the scramjet community valuable flight test data in addition to a new tool, and vehicle, with which to explore high enthalpy scramjet technologies.
DOE Office of Scientific and Technical Information (OSTI.GOV)
Pavlish, John; Thompson, Jeffrey; Dunham, Grant
2014-09-30
Owners of fossil fuel-fired power plants face the challenge of measuring stack emissions of trace metals and acid gases at much lower levels than in the past as a result of increasingly stringent regulations. In the United States, the current reference methods for trace metals and halogens are wet-chemistry methods, U.S. Environmental Protection Agency (EPA) Methods 29 and 26 or 26A, respectively. As a possible alternative to the EPA methods, the Energy & Environmental Research Center (EERC) has developed a novel multielement sorbent trap (MEST) method to be used to sample for trace elements and/or halogens. Sorbent traps offer amore » potentially advantageous alternative to the existing sampling methods, as they are simpler to use and do not require expensive, breakable glassware or handling and shipping of hazardous reagents. Field tests comparing two sorbent trap applications (MEST-H for hydrochloric acid and MEST-M for trace metals) with the reference methods were conducted at two power plant units fueled by Illinois Basin bituminous coal. For hydrochloric acid, MEST measured concentrations comparable to EPA Method 26A at two power plant units, one with and one without a wet flue gas desulfurization scrubber. MEST-H provided lower detection limits for hydrochloric acid than the reference method. Results from a dry stack unit had better comparability between methods than results from a wet stack unit. This result was attributed to the very low emissions in the latter unit, as well as the difficulty of sampling in a saturated flue gas. Based on these results, the MEST-H sorbent traps appear to be a good candidate to serve as an alternative to Method 26A (or 26). For metals, the MEST trap gave lower detection limits compared to EPA Method 29 and produced comparable data for antimony, arsenic, beryllium, cobalt, manganese, selenium, and mercury for most test runs. However, the sorbent material produced elevated blanks for cadmium, nickel, lead, and chromium at levels that would interfere with accurate measurement at U.S. hazardous air pollutant emission limits for existing coal-fired power plant units. Longer sampling times employed during this test program did appear to improve comparative results for these metals. Although the sorbent contribution to the sample was reduced through improved trap design, additional research is still needed to explore lower-background materials before the MEST-M application can be considered as a potential alternative method for all of the trace metals. This subtask was funded through the EERC–U.S. Department of Energy Joint Program on Research and Development for Fossil Energy-Related Resources Cooperative Agreement No. DE-FC26-08NT43291. Nonfederal funding was provided by the Electric Power Research Institute, the Illinois Clean Coal Institute, Southern Illinois Power Company, and the Center for Air Toxic Metals Affiliates Program.« less
NASA Technical Reports Server (NTRS)
Kaufmann, David N.; Ncnally, B. David
1995-01-01
Test flights were conducted to evaluate the capability of Differential Global Positioning System (DGPS) to provide the accuracy and integrity required for International Civil Aviation Organization (ICAO) Category (CAT) 3 precision approach and landings. These test flights were part of a Federal Aviation Administration (FAA) program to evaluate the technical feasibility of using DGPS based technology for CAT 3 precision approach and landing applications. A United Airlines Boeing 737-300 (N304UA) was equipped with DGPS receiving equipment and additional computing capability provided by Stanford University. The test flights were conducted at NASA Ames Research Center's Crows Landing Flight Facility, Crows Landing, California. The flight test evaluation was based on completing 100 approaches and autolandings; 90 touch and go, and 10 terminating with a full stop. Two types of accuracy requirements were evaluated: 1) Total system error, based on the Required Navigation Performance (RNP), and 2) Navigation sensor error, based on ICAO requirements for the Microwave Landing System (MLS). All of the approaches and autolandings were evaluated against ground truth reference data provided by a laser tracker. Analysis of these approaches and autolandings shows that the Stanford University/United Airlines system met the requirements for a successful approach and autolanding 98 out of 100 approaches and autolandings, based on the total system error requirements as specified in the FAA CAT 3 Level 2 Flight Test Plan.
Sulfate-Reducing Bioreactors For The Treatment Of Acid Mine Drainage
Mine influenced water (MIW) affects a large portion of mountainous surface water bodies in the western United States as well as elsewhere. In this study, the purpose of this applied research is to compare different substrates used in biochemical reactors (BCRs) field test cells ...
Leveling the Playing Field: Graphical Aids on Mathematics Tests
ERIC Educational Resources Information Center
Jiménez, Albert M.; Nixon, Casey B.; Zepeda, Sally J.
2017-01-01
This research suggests that structural accommodation can be implemented during the construction phase of standardized mathematics examinations. Data from a racially diverse district in the United States are used to compare student performance on questions with and without graphical aids. Findings suggest that mathematics questions possessing…
Early Development and the Brain: Teaching Resources for Educators
ERIC Educational Resources Information Center
Gilkerson, Linda, Ed.; Klein, Rebecca, Ed.
2008-01-01
This nine-unit curriculum translates current scientific research on early brain development into practical suggestions to help early childhood professionals understand the reciprocal link between caregiving and brain development. The curriculum was created and extensively field-tested by the Erikson Institute Faculty Development Project on the…
Desert soil collection at the JPL soil science laboratory
NASA Technical Reports Server (NTRS)
Blank, G. B.; Cameron, R. E.
1969-01-01
Collection contains desert soils and other geologic materials collected from sites in the United States and foreign countries. Soils are useful for test purposes in research related to extraterrestrial life detection, sampling, harsh environmental studies, and determining suitable areas for training astronauts for lunar exploration.
Elementary Mathematics: Not so Elementary
ERIC Educational Resources Information Center
Scillieri, Elissa Mains
2012-01-01
International tests indicate that United States students have been outscored by other countries in the area of mathematics. Researchers warn that elementary mathematics curricula and instruction in this country is not designed around helping students achieve mathematics proficiency. Much of this could also be attributed to the weak development and…
Does High School Performance Predict College Math Placement?
ERIC Educational Resources Information Center
Kowski, Lynne E.
2013-01-01
Predicting student success has long been a question of interest for postsecondary admission counselors throughout the United States. Past research has examined the validity of several methods designed for predicting undergraduate success. High school record, standardized test scores, extracurricular activities, and combinations of all three have…
The Present Status of Using Natural Gas Cylinders and Acoustic Emission in Thailand
NASA Astrophysics Data System (ADS)
Jomdecha, C.; Jirarungsatian, C.; Methong, W.; Poopat, B.
This chapter presents the status of using natural gas cylinders (CNG/NGV) and acoustic emission (AE) in Thailand. During the period from 2006 to 2013, more than 600,000 CNG cylinder units for vehicles were installed and used for transportation, cars, and trucks in Thailand. The number of cylinder units will be tentatively increased in the future due to the increase in gasoline price. Due to the use of high-pressurization equipment in public, the issue of a risk to public safety has been raised. As of this writing, in 2013, the testing standard from the Thai Department of Energy Business recommends inspection every 5 years using effective inspection methods in order to guarantee safe usage of gas cylinders, including the AE method, following ISO 16148. Normally in Thailand, AE is used in research and petrochemical plants as a special technique. The main applications are testing of pressure vessels, aboveground storage tanks, and university research. Few companies are available to conduct AE for testing natural gas cylinders due to the limited safety of the high-pressure operation and AE equipment and a lack of qualified AE personnel. To develop AE techniques, equipment, procedures, and acceptance criteria of natural gas cylinders are the main focus of AE personnel in Thailand. A desired achievement for current development is for natural gas cylinder testing, which can be applied in field tests and supported by a national testing standard.
Designing testing service at baristand industri Medan’s liquid waste laboratory
NASA Astrophysics Data System (ADS)
Kusumawaty, Dewi; Napitupulu, Humala L.; Sembiring, Meilita T.
2018-03-01
Baristand Industri Medan is a technical implementation unit under the Industrial and Research and Development Agency, the Ministry of Industry. One of the services often used in Baristand Industri Medan is liquid waste testing service. The company set the standard of service is nine working days for testing services. At 2015, 89.66% on testing services liquid waste does not meet the specified standard of services company because of many samples accumulated. The purpose of this research is designing online services to schedule the coming the liquid waste sample. The method used is designing an information system that consists of model design, output design, input design, database design and technology design. The results of designing information system of testing liquid waste online consist of three pages are pages to the customer, the recipient samples and laboratory. From the simulation results with scheduled samples, then the standard services a minimum of nine working days can be reached.
Clinical trials transparency and the Trial and Experimental Studies Transparency (TEST) act.
Logvinov, Ilana
2014-03-01
Clinical trial research is the cornerstone for successful advancement of medicine that provides hope for millions of people in the future. Full transparency in clinical trials may allow independent investigators to evaluate study designs, perform additional analysis of data, and potentially eliminate duplicate studies. Current regulatory system and publishers rely on investigators and pharmaceutical industries for complete and accurate reporting of results from completed clinical trials. Legislation seems to be the only way to enforce mandatory disclosure of results. The Trial and Experimental Studies Transparency (TEST) Act of 2012 was introduced to the legislators in the United States to promote greater transparency in research industry. Public safety and advancement of science are the driving forces for the proposed policy change. The TEST Act may benefit the society and researchers; however, there are major concerns with participants' privacy and intellectual property protection. Copyright © 2014 Elsevier Inc. All rights reserved.
Overview of Reclamation's geothermal program in Imperial Valley, California
NASA Technical Reports Server (NTRS)
Fulcher, M. K.
1974-01-01
The Bureau of Reclamation is presently involved in a unique Geothermal Resource Development Program in Imperial Valley, California. The main purpose of the investigations is to determine the feasibility of providing a source of fresh water through desalting geothermal fluids stored in the aquifers underlying the valley. Significant progress in this research and development stage to date includes extensive geophysical investigations and the drilling of five geothermal wells on the Mesa anomaly. Four of the wells are for production and monitoring the anomaly, and one will be used for reinjection of waste brines from the desalting units. Two desalting units, a multistage flash unit and a vertical tube evaporator unit, have been erected at the East Mesa test site. The units have been operated on shakedown and continuous runs and have produced substantial quantities of high-quality water.
Desai, Vinit M; Roberts, Karlene H; Ciavarelli, Anthony P
2006-01-01
The association between accidents and subsequent work unit safety perceptions was assessed to address cognitive and behavioral changes following accidents. Many studies attempt to predict accident rates using measures of work unit safety, but effects vary considerably. Conversely, this study examined whether recent accidents may be positively associated with work unit safety perceptions, as suggested by behavioral learning mechanisms (increases in safety investments following accidents) or cognitive mechanisms (defensive attributions regarding accident causality). Lagged squadron-level accident experience was correlated with work unit safety perceptions obtained through a 61-question safety climate survey administered to 6,361 individuals in U.S. Navy flight squadrons. Positive associations between minor or intermediately severe accidents and future safety climate scores were found, although no effect was found for major accidents. We suggest that accident history should be considered when examining work unit safety perceptions because recent accidents may be associated with higher safety climate scores. We did not find that this varies systematically with accident severity, and longitudinal research on additional samples is needed to further test this possibility. This research may be used to refine measurement of work unit safety and to examine impacts of accidents or safety violations on workers' cognitive processes and group behavioral changes.
NASA Technical Reports Server (NTRS)
Bauman, Steven W.
1990-01-01
The Oil-Free Turbomachinery research team at the NASA Glenn Research Center is conducting research to develop turbomachinery systems that utilize high-speed, high temperature foil (air) bearings that do not require an oil lubrication system. Such systems combine the most advanced foil bearings from industry with NASA-developed hightemperature solid-lubricant technology. New applications are being pursued, such as Oil- Free turbochargers, auxiliary power units, and turbine propulsion systems for aircraft. An Oil-Free business jet engine, for example, would be simpler, lighter, more reliable, and less costly to purchase and maintain than current engines. Another application is NASA's Prometheus mission, where gas bearings will be required for the closed-cycle turbine based power-conversion system of a nuclear power generator for deep space. To support these applications, Glenn's Oil-Free Turbomachinery research team developed the Ambient Pressure Test Rig. Using this facility, researchers can load and heat a bearing and evaluate its performance with reduced air pressure to simulate high altitude conditions. For the nuclear application, the test chamber can be purged with gases such as helium to study foil gas bearing operation in working fluids other than air.
Performance Measurement of Advanced Stirling Convertors (ASC-E3)
NASA Technical Reports Server (NTRS)
Oriti, Salvatore M.
2013-01-01
NASA Glenn Research Center (GRC) has been supporting development of the Advanced Stirling Radioisotope Generator (ASRG) since 2006. A key element of the ASRG project is providing life, reliability, and performance testing data of the Advanced Stirling Convertor (ASC). The latest version of the ASC (ASC-E3, to represent the third cycle of engineering model test hardware) is of a design identical to the forthcoming flight convertors. For this generation of hardware, a joint Sunpower and GRC effort was initiated to improve and standardize the test support hardware. After this effort was completed, the first pair of ASC-E3 units was produced by Sunpower and then delivered to GRC in December 2012. GRC has begun operation of these units. This process included performance verification, which examined the data from various tests to validate the convertor performance to the product specification. Other tests included detailed performance mapping that encompassed the wide range of operating conditions that will exist during a mission. These convertors were then transferred to Lockheed Martin for controller checkout testing. The results of this latest convertor performance verification activity are summarized here.
NASA Langley Research Center's Contributions to International Active Buffeting Alleviation Programs
NASA Technical Reports Server (NTRS)
Moses, Robert W.
2000-01-01
Buffeting is an aeroelastic phenomenon which plagues high performance aircraft, especially those with twin vertical tails like the F/A-18, at high angles of attack. This buffeting is a concern from fatigue and inspection points of view. By means of wind-tunnel and flight tests, this phenomenon is well studied to the point that buffet loads can be estimated and fatigue life can be increased by structural enhancements to the airframe. In more recent years, buffeting alleviation through active control of smart materials has been highly researched in wind-tunnel proof-of-concept demonstrations and full-scale ground tests using the F/A-18 as a test bed. Because the F/A-18 resides in fleets outside as well as inside the United States, these tests have evolved into international collaborative research activities with Australia and Canada, coordinated by the Air Force Research Laboratory (AFRL) and conducted under the auspices of The Technical Cooperation Program (TTCP). With the recent successes and advances in smart materials, the main focus of these buffeting alleviation tests has also evolved to a new level: utilize the F/A-18 as a prototype to mature smart materials for suppressing vibrations of aerospace structures. The role of the NASA Langley Research Center (LaRC) in these programs is presented.
Contributions to Active Buffeting Alleviation Programs by the NASA Langley Research Center
NASA Technical Reports Server (NTRS)
Moses, Robert W.
1999-01-01
Buffeting is an aeroelastic phenomenon which plagues high performance aircraft, especially those with twin vertical tails like the F/A-18, at high angles of attack. This buffeting is a concern from fatigue and inspection points of view. By means of wind-tunnel and flight tests, this phenomenon is well studied to the point that buffet loads can be estimated and fatigue life can be increased by structural enhancements to the airframe. In more recent years, buffeting alleviation through active control of smart materials has been highly researched in wind-tunnel proof-of-concept demonstrations and full-scale ground tests using the F/A-18 as a test bed. Because the F/A-18 resides in fleets outside as well as inside the United States, these tests have evolved into international collaborative research activities with Australia and Canada, coordinated by the Air Force Research Laboratory (AFRL) and conducted under the auspices of The Technical Cooperation Program (TTCP). With the recent successes and advances in smart materials, the main focus of these buffeting alleviation tests has also evolved to a new level: utilize the F/A-18 as a prototype to mature smart materials for suppressing vibrations of aerospace structures. The role of the NASA Langley Research Center (LaRC) in these programs is presented.
Kamenova, Kalina; Reshef, Amir; Caulfield, Timothy
2014-07-01
This study investigates the portrayal of Angelina Jolie's preventive bilateral mastectomy in the news media. Content analysis of print news was conducted to identify major frames used in press coverage, the overall tone of discussions, how journalists report broader questions about BRCA1/2 testing and hereditary breast/ovarian cancer, and whether they raise concerns about the impact of celebrities on patients' choices and public opinion. The Factiva database was used to collect publications on Jolie's preventive mastectomy in elite newspapers in Canada, the United States, and the United Kingdom. The data set consisted of 103 newspaper articles published in the first month of media coverage. The results show that although the press discussed key issues surrounding predictive genetic testing and preventive options for women at high risk of hereditary breast/ovarian cancer, important medical information about the rarity of Jolie's condition was not communicated to the public. The results highlight the media's overwhelmingly positive slant toward Jolie's mastectomy, while overlooking the relative rarity of her situation, the challenges of "celebrity medicine," and how celebrities influence people's medical decisions. Future research is required to investigate whether the media hype has influenced demand and use of BRCA1/2 testing and preventive mastectomies.
NASA Astrophysics Data System (ADS)
Dabrowski, Richard S.
2014-08-01
The TOPAZ International Program (TIP) was the final name given to a series of projects to purchase and test the TOPAZ-II, a space-based nuclear reactor of a type that had been further developed in the Soviet Union than in the United States. In the changing political situation associated with the break-up of the Soviet Union it became possible for the United States to not just purchase the system, but also to employ Russian scientists, engineers and testing facilities to verify its reliability. The lessons learned from the TIP illuminate some of the institutional and cultural challenges to U.S. - Russian cooperation in technology research which remain true today.
Integrated Stirling Convertor and Hall Thruster Test Conducted
NASA Technical Reports Server (NTRS)
Mason, Lee S.
2002-01-01
An important aspect of implementing Stirling Radioisotope Generators on future NASA missions is the integration of the generator and controller with potential spacecraft loads. Some recent studies have indicated that the combination of Stirling Radioisotope Generators and electric propulsion devices offer significant trip time and payload fraction benefits for deep space missions. A test was devised to begin to understand the interactions between Stirling generators and electric thrusters. An electrically heated RG- 350 (350-W output) Stirling convertor, designed and built by Stirling Technology Company of Kennewick, Washington, under a NASA Small Business Innovation Research agreement, was coupled to a 300-W SPT-50 Hall-effect thruster built for NASA by the Moscow Aviation Institute (RIAME). The RG-350 and the SPT-50 shown, were installed in adjacent vacuum chamber ports at NASA Glenn Research Center's Electric Propulsion Laboratory, Vacuum Facility 8. The Stirling electrical controller interfaced directly with the Hall thruster power-processing unit, both of which were located outside of the vacuum chamber. The power-processing unit accepted the 48 Vdc output from the Stirling controller and distributed the power to all the loads of the SPT-50, including the magnets, keeper, heater, and discharge. On February 28, 2001, the Glenn test team successfully operated the Hall-effect thruster with the Stirling convertor. This is the world's first known test of a dynamic power source with electric propulsion. The RG-350 successfully managed the transition from the purely resistive load bank within the Stirling controller to the highly capacitive power-processing unit load. At the time of the demonstration, the Stirling convertor was operating at a hot temperature of 530 C and a cold temperature of -6 C. The linear alternator was producing approximately 250 W at 109 Vac, while the power-processing unit was drawing 175 W at 48 Vdc. The majority of power was delivered to the Hall thruster discharge circuit operating at 115 Vdc and 0.9 A. Testing planned for late 2001 will examine the possibility of directly driving the Hall thruster discharge circuit using rectified and filtered output from the Stirling alternator.
Extended Operation of Stirling Convertors at NASA Glenn Research Center
NASA Technical Reports Server (NTRS)
Oriti, Salvatore
2011-01-01
Glenn Research Center (GRC) is supporting life and reliability database for free-piston Stirilng conversion via extended convertor operation Ongoing convertor operation: 18 convertors (4 TDCs from Infinia, 14 ASCs from Sunpower). 350,000 total convertor hours of operation. 218,000 on Infinia units and 132,000 on Sunpower units. Demonstrating steady convertor performance requires precise maintenance of operating conditions. Sources of disruption : Investigative tests: Varying operating frequency, hot-end temp, cold-end temp. Hot end control method: Constant heat input mode requires more user-adjustment than constant temperature mode. Long-term transients in hot end insulation were observed. Support facility: Open-bath circulator fluid concentration drifting. Nuisance shutdowns (instrumentation failure, EMI, power outages). Ambient temperature fluctuations due to room HVAC.
NASA Astrophysics Data System (ADS)
Barnett, Ellen; Friedrichsen, Patricia J.
2015-11-01
Research suggests discipline-specific, educative mentoring can help preservice teachers develop more sophisticated pedagogical content knowledge (PCK). However, there are few studies examining the nature of mentors' practice and how mentors influence preservice teacher's (PST) PCK. The purpose of this case study was to describe the strategies used by a secondary biology mentor teacher to support the development of a PST's PCK. The primary data sources were the transcripts of audio-recorded, daily meetings between the mentor and the PST during two curriculum units: DNA/Protein Synthesis and Evolution. The mentor influenced the PST's teaching orientation by repeatedly comparing teacher- and student-centered approaches, asking him to consider how students learn, and asking him to self-assess whether his instruction aligned with his teaching beliefs. The mentor helped the PST develop topic-specific knowledge of instructional strategies by sharing strategies she used previously, modeling critical reflection, and inviting him to critically reflect on his own instructional strategies. Topic-specific knowledge of students' understanding of science was developed by discussing common student misconceptions revealed in students' conversations and by sharing the results of test-item analysis from previous unit tests. The mentor helped develop the PST's topic-specific knowledge of assessment by helping him critically analyze and revise previous examinations to better align with the current curriculum units. Topic-specific knowledge of curricula was developed by jointly grappling with decisions about concept sequencing within units. The study includes implications for research, science teacher education, and professional development for mentors.
Chinese medicine education and its challenges in the United States.
Kwon, Yihyun
2014-04-01
Over the past 4 decades Chinese medicine (CM) has come increasingly into the spotlight in the United States as the clinical effectiveness of CM has been not only empirically well-tested over a long period of time but also proven by recent scientific research. It has proven cost effectiveness, safety, and is authorized for natural and holistic approaches. In consideration, CM is one of the underutilized health care professions in the United States with a promising future. However, CM faces many challenges in its education and system, its niche in the health care system as an independent profession, legal and ethical issues. This paper discusses the confronting issues in the United States: present education, standards of CM education with shifting first professional degree level, new delivery systems of CM education. Development of new research models, training of evidence-based practice, and implementation of integrative medicine into CM education also are the key issues in the current CM profession. This paper also discusses opportunities for the CM profession going beyond the current status, especially with a focus on fusion medicine.
Personal Flotation Devices Research. Volume 2. Research Report.
1978-01-01
C’-.J U. — — -~~~ C ‘- LUV 0 0 - .- C .- V N- U. C C - N- - C.) I I I I ) ‘ ~~ S _•. ~~~. C ~~ ‘.0 ~~ a- — SSO1 A~NVA011~ SONflOd V( A )- 32...test Is to preclude the approval of PFDs which deteriorate when subjected to a gasol i ne/ oil mi xture. A 20 to 1 , gas to oil ratio mi xture is Dre_...which does not have an oral inflation mechanism was subjected to 2 psi wi thout failure . All units passed the gas/ oil i mmersion and tensile test
Semi Quantitative MALDI TOF for Antimicrobial Susceptibility Testing in Staphylococcus aureus
2017-08-31
Semi- quantitative MALDI-TOF for antimicrobial susceptibility testing in Staphylococcus 1 aureus 2 3 4 Tucker Maxson,a Cheryl L. Taylor-Howell,a...Timothy D. Minoguea# 5 6 Diagnostic Systems Division, United States Army Medical Research Institute of Infectious 7 Disease, Fort Detrick, MD...USAa 8 9 Running Title: Quantitative MALDI for AST in S. aureus 10 #Address correspondence to Timothy D. Minogue, timothy.d.minogue.civ@mail.mil
Intranasal Rapamycin Rescues Mice from Staphylococcal Enterotoxin B-Induced Shock
2012-09-18
PROJECT NUMBER 5e. TASK NUMBER 5f. WORK UNIT NUMBER 7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) U.S. Army Medical Research Institute of...Infectious Diseases,Fort Detrick,MD,21702 8. PERFORMING ORGANIZATION REPORT NUMBER 9. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES) 10. SPONSOR...Student’s t-test. Statistical comparisons of survival data were performed by Fisher’s exact test with Stata software (Stata Corp., College Station, TX
Principles of Work Sample Testing. 4. Generalizability
1979-04-01
ARI TECHNICAL REPORT TR-79-A11 Principles of Work Sample Testing: IV. Generallzability , by ,lobert M. Guion Gail H. Ironson BOWLING GREEN STATE...UNIVERSITY Bowling Green , Ohio 43403 April 1979 or -Contract DAHC 19-77-C-0007 d CD, LUa.J Prepared for -_J ;=U.S. ARMY RESEARCH INSTITUTE for the...ORGANIZATION NAME AND ADDRESS 10. PROG RAM ELEMENT. PROJECT, TASK A REA & WORK UNIT NUMBERS Bowling Green State University __ Bowling Green , Ohio 43403
Burisch, Johan; Gisbert, Javier P; Siegmund, Britta; Bettenworth, Dominik; Thomsen, Sandra Bohn; Cleynen, Isabelle; Cremer, Anneline; Ding, Nik John Sheng; Furfaro, Federica; Galanopoulos, Michail; Grunert, Philip Christian; Hanzel, Jurij; Ivanovski, Tamara Knezevic; Krustins, Eduards; Noor, Nurulamin; O'Morain, Neil; Rodríguez-Lago, Iago; Scharl, Michael; Tua, Julia; Uzzan, Mathieu; Ali Yassin, Nuha; Baert, Filip; Langholz, Ebbe
2018-04-27
The 'United Registries for Clinical Assessment and Research' [UR-CARE] database is an initiative of the European Crohn's and Colitis Organisation [ECCO] to facilitate daily patient care and research studies in inflammatory bowel disease [IBD]. Herein, we sought to validate the database by using fictional case histories of patients with IBD that were to be entered by observers of varying experience in IBD. Nineteen observers entered five patient case histories into the database. After 6 weeks, all observers entered the same case histories again. For each case history, 20 key variables were selected to calculate the accuracy for each observer. We assumed that the database was such that ≥ 90% of the entered data would be correct. The overall proportion of correctly entered data was calculated using a beta-binomial regression model to account for inter-observer variation and compared to the expected level of validity. Re-test reliability was assessed using McNemar's test. For all case histories, the overall proportion of correctly entered items and their confidence intervals included the target of 90% (Case 1: 92% [88-94%]; Case 2: 87% [83-91%]; Case 3: 93% [90-95%]; Case 4: 97% [94-99%]; Case 5: 91% [87-93%]). These numbers did not differ significantly from those found 6 weeks later [NcNemar's test p > 0.05]. The UR-CARE database appears to be feasible, valid and reliable as a tool and easy to use regardless of prior user experience and level of clinical IBD experience. UR-CARE has the potential to enhance future European collaborations regarding clinical research in IBD.
Test and Evaluation Enhancements for Cognitive Radio Technologies
2015-05-13
SECURITY CLASSIFICATION OF: This document serves as the final report for the Department of Defense (DoD) Research and Education Program for...report will described the instrumentation and the integration into the academic and research programs . All instrumentation has been procured, delivered...UNIT NUMBER 5c. PROGRAM ELEMENT NUMBER 5b. GRANT NUMBER 5a. CONTRACT NUMBER Form Approved OMB NO. 0704-0188 3. DATES COVERED (From - To) - UU UU UU UU
Asemota, Eseosa; Crawford, Glen; Kovarik, Carrie; Brod, Bruce A
There is currently no standardized protocol for photopatch testing and phototesting in the United States. Certain testing paramaters (such as chemicals tested, time between test application and irradiation, and time of final interpretation) vary from provider to provider. These variations may impact comparability and consistency of test results. The goal of our survey-based study was to outline the photopatch test and phototest protocols used by US contact dermatologists. The information obtained will aid in the development of a national consensus on testing methodologies. Based on a literature search conducted on differences in testing methodologies, we constructed a questionnaire. The survey was distributed at the American Contact Dermatitis Society annual meeting and via the American Contact Dermatitis Society Web site. Standard descriptive analysis was performed on data obtained. Of the 800 dermatologists contacted, 117 agreed to participate in the survey. Among these respondents, 64 (54.8%) conduct photopatch testing. Results of the survey are presented, and they confirm that a variety of techniques and testing materials are used. It would be beneficial to enlist a panel of expert contact dermatologists to create by formal consensus, using these research findings, a standard photopatch test protocol for use in this country.
Khairat, Saif Sherif; Dukkipati, Aniesha; Lauria, Heather Alico; Bice, Thomas; Travers, Debbie; Carson, Shannon S
2018-05-31
Intensive Care Units (ICUs) in the United States admit more than 5.7 million people each year. The ICU level of care helps people with life-threatening illness or injuries and involves close, constant attention by a team of specially-trained health care providers. Delay between condition onset and implementation of necessary interventions can dramatically impact the prognosis of patients with life-threatening diagnoses. Evidence supports a connection between information overload and medical errors. A tool that improves display and retrieval of key clinical information has great potential to benefit patient outcomes. The purpose of this review is to synthesize research on the use of visualization dashboards in health care. The purpose of conducting this literature review is to synthesize previous research on the use of dashboards visualizing electronic health record information for health care providers. A review of the existing literature on this subject can be used to identify gaps in prior research and to inform further research efforts on this topic. Ultimately, this evidence can be used to guide the development, testing, and implementation of a new solution to optimize the visualization of clinical information, reduce clinician cognitive overload, and improve patient outcomes. Articles were included if they addressed the development, testing, implementation, or use of a visualization dashboard solution in a health care setting. An initial search was conducted of literature on dashboards only in the intensive care unit setting, but there were not many articles found that met the inclusion criteria. A secondary follow-up search was conducted to broaden the results to any health care setting. The initial and follow-up searches returned a total of 17 articles that were analyzed for this literature review. Visualization dashboard solutions decrease time spent on data gathering, difficulty of data gathering process, cognitive load, time to task completion, errors, and improve situation awareness, compliance with evidence-based safety guidelines, usability, and navigation. Researchers can build on the findings, strengths, and limitations of the work identified in this literature review to bolster development, testing, and implementation of novel visualization dashboard solutions. Due to the relatively few studies conducted in this area, there is plenty of room for researchers to test their solutions and add significantly to the field of knowledge on this subject. ©Saif Sherif Khairat, Aniesha Dukkipati, Heather Alico Lauria, Thomas Bice, Debbie Travers, Shannon S Carson. Originally published in JMIR Human Factors (http://humanfactors.jmir.org), 31.05.2018.
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
ERIC Educational Resources Information Center
Manpower Administration (DOL), Washington, DC. U.S. Training and Employment Service.
The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…
Teaching Structure from Motion to Undergraduates: New Learning Module for Field Geoscience Courses
NASA Astrophysics Data System (ADS)
Pratt-Sitaula, B. A.; Shervais, K.; Crosby, C. J.; Douglas, B. J.; Crosby, B. T.; Charlevoix, D. J.
2016-12-01
With photogrammetry use expanding rapidly, it is essential to integrate these methods into undergraduate geosciences courses. The NSF-funded "GEodetic Tools for Societal Issues" (GETSI) project has recently published a module for field geoscience courses called "Analyzing High Resolution Topography with TLS and SfM" (serc.carleton.edu/getsi/teaching_materials/high-rez-topo/index.html). Structure from motion (SfM) and terrestrial laser scanning (TLS) are two valuable methods for generating high-resolution topographic landscape models. In addition to teaching the basic surveying methods, the module includes several specific applications that are tied to societally important geoscience research questions. The module goals are that students will be able to: 1) design and conduct a complex TLS and/or SfM survey to address a geologic research question; 2) articulate the societal impetus for answering a given research question; and 3) justify why TLS and/or SfM is the appropriate method in some circumstances. The module includes 6 units: Unit 1-TLS Introduction, Unit 1-SfM Introduction, Unit 2 Stratigraphic Section Survey, Unit 3 Fault Scarp Survey, Unit 4 Geomorphic Change Detection Survey, and Unit 5 Summative Assessment. One or both survey methods can be taught. Instructors choose which application/s to use from Units 2-4. Unit 5 Summative Assessment is flexibly written and can be used to assess any of the learned applications or others such as dinosaur tracks or seismic trench photomosaics. Prepared data sets are also provided for courses unable to visit the field. The included SfM learning manuals may also be of interest to researchers seeking to start with SfM; these are "SfM Guide of Instructors and Investigators" and "SfM Data Exploration and Processing Manual (Agisoft)". The module is appropriate for geoscience courses with field components such as field methods, geomorphology, geophysics, tectonics, and structural geology. All GETSI modules are designed and developed by teams of faculty and content experts and undergo rigorous review and classroom testing. GETSI is a collaborative project by UNAVCO (which runs NSF's Geodetic Facility), Indiana University, and Idaho State University. The Science Education Resource Center (SERC) provides assessment and evaluation expertise and webhosting.
Federal Register 2010, 2011, 2012, 2013, 2014
2012-10-29
..., Central Nervous System Research Unit (Currently Known as Neuroscience Research Unit), Global External... as Warner Lambert Company, Central Nervous System Research Unit, Global External Supply Department... Central Nervous System Research Unit was renamed the Neuroscience Research Unit. In order to ensure proper...
NASA Astrophysics Data System (ADS)
Di, Q.
2013-12-01
In recent years, deep prospecting method such as magnetotelluric and controlled source audio-frequency magnetotelluric develop rapidly, but the instruments almost monopolized by several big geophysical companies from the United States, Canada and Germany. From prospecting practice, foreign equipment adaptation on complicated geological conditions in China is unsatisfactory. As increasing of national strength, electromagnetic exploration system development independently is on the agenda. In the year of 2010, the institute of geology and geophysics, Chinese academy of sciences, took on one subject of the SinoProbe project, the research of surface Electromagnetic Prospecting (SEP) System, and has achieved some achievements. SEP is an independent research instrumentation system, which is available for MT, AMT and CSAMT soundings. After laboratory testing, in order to test SEP's performance in field, the yang-jia-zhang-zi molybdenum deposit area is selected for SEP experiment. All modules and components of SEP system have been tested, and the field ability of the whole system also has been tested. The experimental results show that SEP performance has reached the level of commercial instruments.
Theoretical Cognitive Principles Observed in the Social Studies Classroom
ERIC Educational Resources Information Center
Walker, Juan; Langan, Elise; Kemp, Andrew; Pagnotti, John; Russell, William
2016-01-01
Pre-service elementary social studies teachers in the south eastern United States participated in a mixed methods study to determine the degree to which they utilized critical thinking skills. Insight Assessments administered analysis of their reflections, critical thinking skills, and dispositions test. The researchers developed a post survey for…