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Sample records for performance parts 2 5

  1. Individual plant examination program: Perspectives on reactor safety and plant performance. Parts 2--5: Final report; Volume 2

    SciTech Connect

    1997-12-01

    This report provides perspectives gained by reviewing 75 Individual Plant Examination (IPE) submittals pertaining to 108 nuclear power plant units. IPEs are probabilistic analyses that estimate the core damage frequency (CDF) and containment performance for accidents initiated by internal events. The US Nuclear Regulatory Commission (NRC) reviewed the IPE submittals with the objective of gaining perspectives in three major areas: (1) improvements made to individual plants as a result of their IPEs and the collective results of the IPE program, (2) plant-specific design and operational features and modeling assumptions that significantly affect the estimates of CDF and containment performance, and (3) strengths and weaknesses of the models and methods used in the IPEs. These perspectives are gained by assessing the core damage and containment performance results, including overall CDF, accident sequences, dominant contributions to component failure and human error, and containment failure modes. Methods, data, boundary conditions, and assumptions used in the IPEs are considered in understanding the differences and similarities observed among the various types of plants. This report is divided into three volumes containing six parts. Part 1 is a summary report of the key perspectives gained in each of the areas identified above, with a discussion of the NRC`s overall conclusions and observations. Part 2 discusses key perspectives regarding the impact of the IPE Program on reactor safety. Part 3 discusses perspectives gained from the IPE results regarding CDF, containment performance, and human actions. Part 4 discusses perspectives regarding the IPE models and methods. Part 5 discusses additional IPE perspectives. Part 6 contains Appendices A, B and C which provide the references of the information from the IPEs, updated PRA results, and public comments on draft NUREG-1560 respectively.

  2. COS FUV External Spectroscopic Performance - Part 2

    NASA Astrophysics Data System (ADS)

    Ghavamian, Parviz

    2009-07-01

    exposures with the G130M and G140L gratings. For observations with the G160M gratingwe include an additional set of 5 POSTARGs each along the positive {+X} and negative{-X} dispersion directions. The goal of these observations is to test variations in the shape and width of the profile along the dispersion direction, and to compare the results with thosefrom the cross-dispersion direction.All of these observations will be performed in TIME-TAG mode with FLASH=YESfor all three FUV gratings, but with FP-POS set to the default value of 3. The observations with the BOA will be performed on the Galactic symbiotic star AG Draconis {M_V = 9.8}. This object is a bright recurrent nova {period 15 yrs} and a source of strong ultraviolet line emission. Here we obtain asingle TIME-TAG exposure for each of the four FUV gratings with the objectcentered in the BOA to evaluate the spatial resolution in this mode. Weaim for S/N = 20 for the brighest emission line in each observation. The number of exposures in this program is somewhat larger than the numberdescribed in the Activity Summary, but is necessary to perform the intendedtests of the COS spectral resolution.This activity is SMOV program COS 32.IMPLEMENTATION METHOD: Stored CommandingDATA REQUIREMENTS: Approximately 420 MBDEPENDENCIES: Execute after verification based upon results of activity COS 30{Internal FUV Wavelength Calibration} {SMOV Proposal 11488}APPLICABLE SMOV REQUIREMENTS: L.10.4.2.3.12.2; L.10.4.2.3.12.3; L.10.4.2.3.13

  3. COS NUV External Spectroscopic Performance - Part 2

    NASA Astrophysics Data System (ADS)

    Ghavamian, Parviz

    2009-07-01

    } observations at one central wavelength setting with the PSA. Next we repeat the sequence of observations at each of 5 additionalpositions, with offsets of 0.25, 0.5, 1.0, 1.5 and 1.75 arcseconds in the cross-dispersion direction{+Y}. The procedure is repeated for 5 more POSTARGs offset in the negative cross-dispersion direction {-Y}. This results in a total of 11 exposures with the G225M and G285M gratings.For observations with the G185M grating we include an additional set of 5 POSTARGs each alongthe positive {+X} and negative {-X} dispersion directions. The goal of these observations is to test variations in the shape and width of the profile along the dispersion direction.All of these observations will be performed in TIME-TAG mode with FLASH=YESfor all four NUV gratings, but with FP-POS simply set to the default value of 3. Our G230L observations will target He 2-38, and will be performed with the same setof offsets {11} as the G185M and G225M gratings.We plan to perform additional NUV observations through the BOA of the symbiotic star RR Tel, where we will obtain a single TIME-TAG exposure for each of the four NUV gratings with the object centered in the BOA to evaluate the spatial resolution in this mode. We aim for S/N >= 20 in these observations. This activity is SMOV program COS 17.IMPLEMENTATION METHOD: Stored CommandingDATA REQUIREMENTS: Approximately 420 MBDEPENDENCIES: Execute after verification based upon results of activity COS 15{Internal NUV Wavelength Verification} {SMOV program 11475}.APPLICABLE SMOV REQUIREMENTS: L.10.4.2.3.7.2; L.10.4.2.3.7.3; L.10.4.2.3.13

  4. 2 CFR 175.5 - Purpose of this part.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 2 Grants and Agreements 1 2010-01-01 2010-01-01 false Purpose of this part. 175.5 Section 175.5 Grants and Agreements OFFICE OF MANAGEMENT AND BUDGET GOVERNMENTWIDE GUIDANCE FOR GRANTS AND AGREEMENTS Reserved AWARD TERM FOR TRAFFICKING IN PERSONS § 175.5 Purpose of this part. This part establishes...

  5. 2 CFR 175.5 - Purpose of this part.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 2 Grants and Agreements 1 2012-01-01 2012-01-01 false Purpose of this part. 175.5 Section 175.5 Grants and Agreements Office of Management and Budget Guidance for Grants and Agreements OFFICE OF MANAGEMENT AND BUDGET GOVERNMENTWIDE GUIDANCE FOR GRANTS AND AGREEMENTS NATIONAL POLICY REQUIREMENTS...

  6. 2 CFR 175.5 - Purpose of this part.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 2 Grants and Agreements 1 2014-01-01 2014-01-01 false Purpose of this part. 175.5 Section 175.5 Grants and Agreements Office of Management and Budget Guidance for Grants and Agreements OFFICE OF MANAGEMENT AND BUDGET GOVERNMENTWIDE GUIDANCE FOR GRANTS AND AGREEMENTS Reserved AWARD TERM FOR...

  7. 2 CFR 175.5 - Purpose of this part.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 2 Grants and Agreements 1 2013-01-01 2013-01-01 false Purpose of this part. 175.5 Section 175.5 Grants and Agreements Office of Management and Budget Guidance for Grants and Agreements OFFICE OF MANAGEMENT AND BUDGET GOVERNMENTWIDE GUIDANCE FOR GRANTS AND AGREEMENTS NATIONAL POLICY REQUIREMENTS...

  8. 2 CFR 175.5 - Purpose of this part.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 2 Grants and Agreements 1 2011-01-01 2011-01-01 false Purpose of this part. 175.5 Section 175.5 Grants and Agreements Office of Management and Budget Guidance for Grants and Agreements OFFICE OF MANAGEMENT AND BUDGET GOVERNMENTWIDE GUIDANCE FOR GRANTS AND AGREEMENTS AWARD TERM FOR TRAFFICKING IN...

  9. 2 CFR 180.5 - What does this part do?

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 2 Grants and Agreements 1 2010-01-01 2010-01-01 false What does this part do? 180.5 Section 180.5 Grants and Agreements OFFICE OF MANAGEMENT AND BUDGET GOVERNMENTWIDE GUIDANCE FOR GRANTS AND AGREEMENTS Reserved OMB GUIDELINES TO AGENCIES ON GOVERNMENTWIDE DEBARMENT AND SUSPENSION (NONPROCUREMENT) §...

  10. Case Studies in Educational Performance Contracting. Part 5. Gilroy, California

    ERIC Educational Resources Information Center

    Rapp, M. L.

    The Gilroy, California, Unified School District contracted with Westinghouse Learning Corporation for the 1970-71 school year for the purpose of improving reading and mathematics achievement of approximately 100 Spanish-surnamed boys and girls from grades 2-4. The average gain at the end of the program was 0.6 achievement years in reading and 0.8…

  11. 5. PART 2 OF 3 PART PANORAMA WITH NOS. CA265J4 ...

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

    5. PART 2 OF 3 PART PANORAMA WITH NOS. CA-265-J-4 AND CA-265-J-6 OF FIGUEROA STREET AND LOS ANGELES RIVER VIADUCTS. LOOKING 308°W. - Arroyo Seco Parkway, Figueroa Street Viaduct, Spanning Los Angeles River, Los Angeles, Los Angeles County, CA

  12. Characterization of the Ti-10Nb-10Zr-5Ta Alloy for Biomedical Applications. Part 2: Wettability, Tribological Performance and Biocompatibility

    NASA Astrophysics Data System (ADS)

    Braic, V.; Balaceanu, M.; Braic, M.; Vitelaru, C.; Titorencu, I.; Pruna, V.; Parau, A. C.; Fanara, C.; Vladescu, A.

    2014-01-01

    The Ti-10Nb-10Zr-5Ta alloy, prepared in a levitation melting furnace, was investigated as a possible candidate for replacing Ti6Al4V alloy in medical applications. The sessile drop method, pin-on-disc and in vitro tests were used to analyze wettability, wear resistance, and biocompatibility of the new alloy. The characteristics of the Ti-10Nb-10Zr-5Ta alloy were assessed in comparison to those of the Ti6Al4V alloy. The Ti-10Nb-10Zr-5Ta system was found to have hydrophilic characteristics with similar contact angle as the Ti6Al4V alloy. In all environments (deionized water, simulated body fluid and Fusayama Meyer artificial saliva), the friction coefficient showed a stable evolution versus sliding distance, being similar for both alloys. On overall, the wear resistance of Ti-10Nb-10Zr-5Ta alloy was lower than that of Ti6Al4V for all testing environments. The Ti-10Nb-10Zr-5Ta alloy exhibited good biocompatibility characteristics at in vitro test compared to Ti6Al4V alloy. The cell viability on Ti-10Nb-10Zr-5Ta surfaces was higher than the one observed on Ti6Al4V samples, regardless the number of days spent in osteoblast-like cells culture. A high degree of cell attachment and spreading was observed on both alloys.

  13. SCALE: A modular code system for performing Standardized Computer Analyses for Licensing Evaluation. Volume 2, Part 3: Functional modules F16--F17; Revision 5

    SciTech Connect

    1997-03-01

    SCALE--a modular code system for Standardized Computer Analyses Licensing Evaluation--has been developed by Oak Ridge National Laboratory at the request of the US Nuclear Regulatory Commission. The SCALE system utilizes well-established computer codes and methods within standard analysis sequences that (1) allow an input format designed for the occasional user and/or novice, (2) automated the data processing and coupling between modules, and (3) provide accurate and reliable results. System development has been directed at problem-dependent cross-section processing and analysis of criticality safety, shielding, heat transfer, and depletion/decay problems. Since the initial release of SCALE in 1980, the code system has been heavily used for evaluation of nuclear fuel facility and package designs. This revision documents Version 4.3 of the system.

  14. SCALE: A modular code system for performing Standardized Computer Analyses for Licensing Evaluation. Volume 1, Part 2: Control modules S1--H1; Revision 5

    SciTech Connect

    1997-03-01

    SCALE--a modular code system for Standardized Computer Analyses Licensing Evaluation--has been developed by Oak Ridge National Laboratory at the request of the US Nuclear Regulatory Commission. The SCALE system utilizes well-established computer codes and methods within standard analysis sequences that (1) allow an input format designed for the occasional user and/or novice, (2) automated the data processing and coupling between modules, and (3) provide accurate and reliable results. System development has been directed at problem-dependent cross-section processing and analysis of criticality safety, shielding, heat transfer, and depletion/decay problems. Since the initial release of SCALE in 1980, the code system has been heavily used for evaluation of nuclear fuel facility and package designs. This revision documents Version 4.3 of the system.

  15. The science of cycling: factors affecting performance - part 2.

    PubMed

    Faria, Erik W; Parker, Daryl L; Faria, Irvin E

    2005-01-01

    This review presents information that is useful to athletes, coaches and exercise scientists in the adoption of exercise protocols, prescription of training regimens and creation of research designs. Part 2 focuses on the factors that affect cycling performance. Among those factors, aerodynamic resistance is the major resistance force the racing cyclist must overcome. This challenge can be dealt with through equipment technological modifications and body position configuration adjustments. To successfully achieve efficient transfer of power from the body to the drive train of the bicycle the major concern is bicycle configuration and cycling body position. Peak power output appears to be highly correlated with cycling success. Likewise, gear ratio and pedalling cadence directly influence cycling economy/efficiency. Knowledge of muscle recruitment throughout the crank cycle has important implications for training and body position adjustments while climbing. A review of pacing models suggests that while there appears to be some evidence in favour of one technique over another, there remains the need for further field research to validate the findings. Nevertheless, performance modelling has important implications for the establishment of performance standards and consequent recommendations for training.

  16. Coating Performance in Duluth Superior Harbor. Part 2

    DTIC Science & Technology

    2012-10-01

    Space Center, Mississippi •~">J • /"N ixteen miles (26 km) of carbon steel I •"X r~\\ Y~"| f^\\ CX* W. (CS) sheet Pi,in8 ( 12 -mm thick V_>^ U C\\J U...two-part polyamide epoxy/ zinc primer Pass Thick, smooth, intact, chips A—dark green two-part polyamine epoxy Pass Thick, lumpy, intact, chips 5...intact, chips 7—black polysulfide modified epoxy novolac Fail Broken, peeling, corrosion 8—black two-part coal tar polyamide epoxy Pass Thin, smooth

  17. NIMBUS-5 sounder data processing system. Part 2: Results

    NASA Technical Reports Server (NTRS)

    Smith, W. L.; Woolf, H. M.; Hayden, C. M.; Shen, W. C.

    1975-01-01

    The Nimbus-5 spacecraft carries infrared and microwave radiometers for sensing the temperature distribution of the atmosphere. Methods developed for obtaining temperature profiles from the combined set of infrared and microwave radiation measurements are described. Algorithms used to determine (a) vertical temperature and water vapor profiles, (b) cloud height, fractional coverage, and liquid water content, (c) surface temperature, and (d) total outgoing longwave radiation flux are described. Various meteorological results obtained from the application of the Nimbus-5 sounding data processing system during 1973 and 1974 are presented.

  18. Premium performance heating oil - Part 2, Field trial results

    SciTech Connect

    Jetter, S.M.; Hoskin, D.; McClintock, W.R.

    1996-07-01

    Limited field trial results of a heating oil additive package developed to minimize unscheduled maintenance indicate that it achieves its goal of keeping heating oil systems cleaner. The multifunctional additive package was developed to provide improved fuel oxidation stability, improved corrosion protection, and dispersency. This combination of performance benefits was chosen because we believed it would retard the formation of sludge, as well as allow sludge already present to be carried through the system without fouling the fuel system components (dispersency should keep sludge particles small so they pass through the filtering system). Since many unscheduled maintenance calls are linked to fouling of the fuel filtering system, the overall goal of this technology is to reduce these maintenance calls. Photographic evidence shows that the additive package not only reduces the amount of sludge formed, but even removes existing sludge from filters and pump strainers. This {open_quotes}clean-up{close_quotes} performance is provided trouble free: we found no indication that nozzle/burner performance was impaired by dispersing sludge from filters and pump strainers. Qualitative assessments from specific accounts that used the premium heating oil also show marked reductions in unscheduled maintenance.

  19. Public reporting of cardiac surgery performance: Part 2--implementation.

    PubMed

    Shahian, David M; Edwards, Fred H; Jacobs, Jeffrey P; Prager, Richard L; Normand, Sharon-Lise T; Shewan, Cynthia M; O'Brien, Sean M; Peterson, Eric D; Grover, Frederick L

    2011-09-01

    Appropriate implementation is essential to create a credible public reporting system. Ideally, data should be obtained from an audited clinical data registry, and structure, process, or outcomes metrics may be reported. Composite measures are increasingly used, as are measures of appropriateness, patient satisfaction, functional status, and health-related quality of life. Classification of provider performance should use statistical criteria appropriate to the policy objectives and to the desired balance of sensitivity and specificity. Public reports should use simplified visual or tabular presentation aids that maximize correct interpretation of numerical data. Because of sample size issues, and to emphasize that cardiac surgery requires team-based care, public reporting should generally be focused at the program rather than individual surgeon level. This may also help to mitigate risk aversion, the avoidance of high-risk patients.

  20. 40 CFR Appendix N to Part 50 - Interpretation of the National Ambient Air Quality Standards for PM2.5

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Air Quality Standards for PM2.5 N Appendix N to Part 50 Protection of Environment ENVIRONMENTAL.... 50, App. N Appendix N to Part 50—Interpretation of the National Ambient Air Quality Standards for PM2... used for performing calculations in appendix N. It represents data for the primary monitors...

  1. 40 CFR Appendix N to Part 50 - Interpretation of the National Ambient Air Quality Standards for PM2.5

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Air Quality Standards for PM2.5 N Appendix N to Part 50 Protection of Environment ENVIRONMENTAL.... 50, App. N Appendix N to Part 50—Interpretation of the National Ambient Air Quality Standards for PM2... used for performing calculations in appendix N. It represents data for the primary monitors...

  2. 40 CFR Table F-1 to Subpart F of... - Performance Specifications for PM2.5 Class II Equivalent Samplers

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 5 2010-07-01 2010-07-01 false Performance Specifications for PM2.5 Class II Equivalent Samplers F Table F-1 to Subpart F of Part 53 Protection of Environment ENVIRONMENTAL..., Subpt. F, Table F-1 Table F-1 to Subpart F of Part 53—Performance Specifications for PM2.5 Class...

  3. 40 CFR Table F-1 to Subpart F of... - Performance Specifications for PM2.5 Class II Equivalent Samplers

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 5 2011-07-01 2011-07-01 false Performance Specifications for PM2.5 Class II Equivalent Samplers F Table F-1 to Subpart F of Part 53 Protection of Environment ENVIRONMENTAL..., Subpt. F, Table F-1 Table F-1 to Subpart F of Part 53—Performance Specifications for PM2.5 Class...

  4. Benchmarking the performance of fixed-image receptor digital radiography systems. Part 2: system performance metric.

    PubMed

    Lee, Kam L; Bernardo, Michael; Ireland, Timothy A

    2016-06-01

    This is part two of a two-part study in benchmarking system performance of fixed digital radiographic systems. The study compares the system performance of seven fixed digital radiography systems based on quantitative metrics like modulation transfer function (sMTF), normalised noise power spectrum (sNNPS), detective quantum efficiency (sDQE) and entrance surface air kerma (ESAK). It was found that the most efficient image receptors (greatest sDQE) were not necessarily operating at the lowest ESAK. In part one of this study, sMTF is shown to depend on system configuration while sNNPS is shown to be relatively consistent across systems. Systems are ranked on their signal-to-noise ratio efficiency (sDQE) and their ESAK. Systems using the same equipment configuration do not necessarily have the same system performance. This implies radiographic practice at the site will have an impact on the overall system performance. In general, systems are more dose efficient at low dose settings.

  5. PM2.5 stack sampler performance-laboratory evaluation

    Technology Transfer Automated Retrieval System (TEKTRAN)

    In 2006, EPA implemented a more stringent standard for PM2.5, particulate matter whose effective diameter is less than 2.5 microns. PM2.5 is listed as a criteria pollutant in the National Ambient Air Quality Standards (NAAQS). Agricultural operations across the United States are encountering difficu...

  6. The BEMUSE Programme: Results of the First Part Concerning the LOFT L2-5 Test

    SciTech Connect

    Crecy, Agnes de; Bazin, Pascal; D'Auria, Francesco; Petruzzi, Alessandro; Ryu, Yong-Ho

    2006-07-01

    This paper is aimed at describing results of the first part of the BEMUSE (Best Estimate Methods - Uncertainty and Sensitivity Evaluation) programme. The purpose of BEMUSE is the comparison of best-estimate calculations, followed by the comparison of uncertainty and sensitivity analyses for a Large Break Loss of Coolant Accident (LB-LOCA). The first part of the programme is devoted to the study of the LOFT L2-5 experiment. After a general presentation of the programme, which implies more than ten participants, this paper describes the qualification process and the results of the best-estimate calculations. The results are significantly less dispersed than those of the ISP-13, concerning already LOFT L2-5 more than 20 years ago. Then, it presents extensively the methods and the results of uncertainty and sensitivity analyses. All the participants, apart from the University of Pisa with the CIAU method, use a fully probabilistic approach, based on Wilks' formula. However, differences appear for the choice of the uncertain input parameters to be considered and for their associated range of variation. Sensitivity analysis is performed with regression techniques, and the results are also compared. As a conclusion, main lessons learnt from BEMUSE and recommendations are presented. (authors)

  7. "Performative", "Perfomativity" and the Culture of Performance: Knowledge Management in the New Economy (Part 2)

    ERIC Educational Resources Information Center

    Peters, Michael A.

    2004-01-01

    This article explores the views of several UK officials on the concepts of performativity and the culture of performance on knowledge management. In his recorded statement in a new BBC4 series, Chancellor Gordon Brown stated that the markets provide opportunities for prosperity, but equally they are not automatically equated with the public…

  8. Performance Improvement Through Indexing of Turbine Airfoils. Part 2; Numerical Simulation

    NASA Technical Reports Server (NTRS)

    Griffin, Lisa W.; Huber, Frank W.; Sharma, Om P.

    1996-01-01

    An experimental/analytical study has been conducted to determine the performance improvements achievable by circumferentially indexing succeeding rows of turbine stator airfoils. A series of tests was conducted to experimentally investigate stator wake clocking effects on the performance of the space shuttle main engine (SSME) alternate turbopump development (ATD) fuel turbine test article (TTA). The results from this study indicate that significant increases in stage efficiency can be attained through application of this airfoil clocking concept. Details of the experiment and its results are documented in part 1 of this paper. In order to gain insight into the mechanisms of the performance improvement, extensive computational fluid dynamics (CFD) simulations were executed. The subject of the present paper is the initial results from the CFD investigation of the configurations and conditions detailed in part 1 of the paper. To characterize the aerodynamic environments in the experimental test series, two-dimensional (2D), time accurate, multistage, viscous analyses were performed at the TTA midspan. Computational analyses for five different circumferential positions of the first stage stator have been completed. Details of the computational procedure and the results are presented. The analytical results verify the experimentally demonstrated performance improvement and are compared with data whenever possible. Predictions of time-averaged turbine efficiencies as well as gas conditions throughout the flow field are presented. An initial understanding of the turbine performance improvement mechanism based on the results from this investigation is described.

  9. STS-109 Mission Highlights Resource Tape. Part 2 of 4; Flight Days 4 & 5

    NASA Technical Reports Server (NTRS)

    2002-01-01

    This video, Part 2 of 4, shows the activities of the STS-109 crew (Scott Altman, Commander; Duane Carey, Pilot; John Grunsfeld, Payload Commander; Nancy Currie, James Newman, Richard Linnehan, Michael Massimino, Mission Specialists) during flight days 4 and 5. The activities from other flights days can be seen on 'STS-109 Mission Highlights Resource Tape' Part 1 of 4 (internal ID 2002139471), 'STS-109 Mission Highlights Resource Tape' Part 3 of 4 (internal ID 2002139476), and 'STS-109 Mission Highlights Resource Tape' Part 4 of 4 (internal ID 2002137577). The primary activities during these days were EVAs (extravehicular activities) to replace two solar arrays on the HST (Hubble Space Telescope). Footage from flight day 4 records an EVA by Grunsfeld and Linnehan, including their exit from Columbia's payload bay airlock, their stowing of the old HST starboard rigid array on the rigid array carrier in Columbia's payload bay, their attachment of the new array on HST, the installation of a new starboard diode box, and the unfolding of the new array. The pistol grip space tool used to fasten the old array in its new location is shown in use. The video also includes several shots of the HST with Earth in the background. On flight day 5 Newman and Massimino conduct an EVA to change the port side array and diode box on HST. This EVA is very similar to the one on flight day 4, and is covered similarly in the video. A hand operated ratchet is shown in use. In addition to a repeat of the previous tasks, the astronauts change HST's reaction wheel assembly, and because they are ahead of schedule, install installation and lubricate an instrument door on the telescope. The Earth views include a view of Egypt and Israel, with the Nile River, Red Sea, and Mediterranean Sea.

  10. Performance Analysis and Design Synthesis (PADS) computer program. Volume 2: Program description, part 2

    NASA Technical Reports Server (NTRS)

    1972-01-01

    The QL module of the Performance Analysis and Design Synthesis (PADS) computer program is described. Execution of this module is initiated when and if subroutine PADSI calls subroutine GROPE. Subroutine GROPE controls the high level logical flow of the QL module. The purpose of the module is to determine a trajectory that satisfies the necessary variational conditions for optimal performance. The module achieves this by solving a nonlinear multi-point boundary value problem. The numerical method employed is described. It is an iterative technique that converges quadratically when it does converge. The three basic steps of the module are: (1) initialization, (2) iteration, and (3) culmination. For Volume 1 see N73-13199.

  11. EVALUATION OF THE COMMUNITY MULTISCALE AIR QUALITY (CMAQ) MODEL VERSION 4.5: UNCERTAINTIES AND SENSITIVITIES IMPACTING MODEL PERFORMANCE: PART II - PARTICULATE MATTER

    EPA Science Inventory

    This paper presents an analysis of the CMAQ v4.5 model performance for particulate matter and its chemical components for the simulated year 2001. This is part two is two part series of papers that examines the model performance of CMAQ v4.5.

  12. Utility FGD survey, January--December 1989. Volume 2, Design performance data for operating FGD systems: Part 2

    SciTech Connect

    Hance, S.L.; McKibben, R.S.; Jones, F.M.

    1992-03-01

    This is Volume 2 part 2, of the Utility flue gas desulfurization (FGD) Survey report, which is generated by a computerized data base management system, represents a survey of operational and planned domestic utility flue gas desulfurization (FGD) systems. It summarizes information contributed by the utility industry, system and equipment suppliers, system designers, research organizations, and regulatory agencies. The data cover system design, fuel characteristics, operating history, and actual system performance. Also included is a unit-by-unit discussion of problems and solutions associated with the boilers, scrubbers, and FGD systems. This volume particularly contains basic design and performance data.

  13. Performance of reduced wall EPR insulated medium voltage power cables. Part 2: Mechanical characteristics

    SciTech Connect

    Wen, Y.; Cinquemani, P.L.

    1997-04-01

    For the replacement of paper insulated lead covered cables (PILC) reduced insulation wall designs have been developed. They provide a reliable lower diameter cable design for installation in existing PILC conduits. Representing Part 2 of the investigation, this paper presents the results of mechanical testing conducted on both reduced and full wall EPR insulated cables. Both jacketed and non-jacketed cable designs have been subjected to mechanical pulling forces which greatly exceed recommended industry limitations, followed by electrical testing to ascertain cable performance. The results of this study conclude that reduced wall EPR insulated cables can safely withstand the same pulling forces as recommended for conventional walls and can be designed for installation under the same pulling limitations.

  14. 40 CFR Appendix N to Part 50 - Interpretation of the National Ambient Air Quality Standards for PM2.5

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Air Quality Standards for PM2.5 N Appendix N to Part 50 Protection of Environment ENVIRONMENTAL.... 50, App. N Appendix N to Part 50—Interpretation of the National Ambient Air Quality Standards for PM2...) for the annual creditable number of samples for year y (cny). The corresponding “n” value in the...

  15. Thermal performance trials on the habitability of private bushfire shelters: part 2

    NASA Astrophysics Data System (ADS)

    Taylor, Nigel A. S.; Haberley, Benjamin J.

    2015-08-01

    In the preceding communication, an investigation was described in which the thermal specifications for the design of private bushfire shelters were evaluated. Since those trials were undertaken with the thermal characteristics of the air clamped, survival uncertainty persisted if the internal ambient conditions were progressively changing, as would occur within an air-tight shelter. Therefore, two further investigations were performed. In the first, changes in the physical properties of air within an air-tight shelter simulator (1.2 m3), initially equilibrated to 43.7 °C and 42.3 % relative humidity, were studied when pre-heated, well-hydrated males were sealed inside ( N = 16; 60 min; experimental series 2). Air temperature and humidity moved sigmoidally to 40.5 °C (standard deviation (SD), 0.5) and 90.1 % (SD, 2.1). Oxygen and carbon dioxide fractional concentrations changed reciprocally, with respective terminal averages of 16.7 % (SD, 0.8) and 3.94 % (SD, 0.72). Deep-body temperature rose beyond the tenth minute to a terminal mean of 39.3 °C (SD, 0.2). In the third experimental series, these air temperature and humidity changes were reproduced in trials commencing at two different thermal states (40 °C and 70 % relative humidity; 45 °C and 50 % relative humidity). Sixteen pre-heated and slightly dehydrated men and women were investigated. In neither condition did the auditory canal temperature of any individual change by more than 2 °C or exceed 40 °C. It may be concluded, within the limits of these experiments, that the recommended thermal and dimensional specifications for bushfire shelters can provide tenable conditions for healthy, young adults.

  16. Gray Ta2O5 Nanowires with Greatly Enhanced Photocatalytic Performance.

    PubMed

    Zhu, Guilian; Lin, Tianquan; Cui, Houlei; Zhao, Wenli; Zhang, Hui; Huang, Fuqiang

    2016-01-13

    Black TiO2, with enhanced solar absorption and photocatalytic activity, has gained extensive attention, inspiring us to investigate the reduction of other wide-bandgap semiconductors for improved performance. Herein, we report the preparation of gray Ta2O5 nanowires with disordered shells and abundant defects via aluminum reduction. Its water decontamination is 2.5 times faster and hydrogen production is 2.3-fold higher over pristine Ta2O5. The reduced Ta2O5 also delivers significantly enhanced photoelectrochemical performance compared with the pristine Ta2O5 nanowires, including much higher carrier concentration, easier electron-hole separation and 11 times larger photocurrent. Our results demonstrate that Ta2O5 will have great potentials in photocatalysis and solar energy utilization after proper modification.

  17. From trans-[(eta5-C5Me5)2Mo2S2(mu-S)2] to [(eta5-C5Me5)2Mo2(mu3-S)4(CuMeCN)2]2+ to [(eta5-C5Me5)2Mo2(mu3-S)4Cu2]-based polymeric and dimeric clusters: syntheses, structures and enhanced third-order non-linear optical performances.

    PubMed

    Ren, Zhi-Gang; Yang, Jun-Yi; Song, Ying-Lin; Li, Ni-Ya; Li, Hong-Xi; Chen, Yang; Zhang, Yong; Lang, Jian-Ping

    2009-04-14

    Reactions of trans-[(eta5-C5Me5)2Mo2S2(mu-S)2] (1) with 2 equiv. of [Cu(MeCN)4]X (X = PF6-, ClO4-) produced two acetonitrile-coordinated cubane-like cationic clusters [(eta5-C5Me5)2Mo2(mu3-S)4Cu2(MeCN)2]X2 (X = PF6- (2), ClO4- (3)). Treatment of 2 or 3 with 4,4'-bipyridine (4,4'-bipy) or trans-1,2-bis(4-pyridyl)ethylene) (bpee) afforded two polymeric clusters {[(eta5-C5Me5)2Mo2(mu3-S)4Cu2(L)]X2}n (4: L = 4,4'-bipy, X = PF6-; 5: L = bpee, X = ClO4-), while analogous reactions of 2 or 3 with 1,2-bis(4-pyridyl)ethane (bpea), 1,2-bis(diphenylphosphine)ethane (dppe), or 1,4-bis-(diphenylphosphine)butane) (dppb) formed three dimeric clusters [(eta5-C5Me5)2Mo2(mu3-S)4Cu2(L)]2X4 (6: L = bpea; X = PF6-; 7: L = dppe, X = ClO4-; 8: L = dppb, X = ClO4-). Clusters 2-8 consist of a cubane-like [(eta5-C5Me5)2Mo2(mu3-S)4Cu2] core with each Cu being coordinated by one labile MeCN molecule (2, 3) or by bridging dipyridyl or diphosphino ligands (4-8). 4 or 5 has a 1D zigzag chain structure while 6-8 contain cyclic dimeric structures. The third-order non-linear optical (NLO) properties of 2-8 in MeCN were investigated by Z-scan technique at 532 nm. These compounds showed strong third-order NLO absorption effects and self-defocusing properties, and their NLO performances were remarkably enhanced relative to those of 1.

  18. The Vanderbilt Professional Nursing Practice Program, part 2: Integrating a professional advancement and performance evaluation system.

    PubMed

    O'Hara, Nancy F; Duvanich, Mary; Foss, Julie; Wells, Nancy

    2003-10-01

    Developing a performance-based advancement system requires evaluation tools that capture essential behaviors and outcomes reflective of key nursing functions. To ensure relevance to clinical practice and enhance buy-in from nursing staff, the behaviors and outcomes were defined by a broad cross-section of nursing staff and administrators. The first article (September 2003) in this 3-part series described the foundation for and the philosophical background of the Vanderbilt Professional Nursing Practice Program (VPNPP), the career advancement program under way at Vanderbilt University Medical Center. This second article describes the development of the evaluation tools used in the VPNPP, the implementation and management of this new system, program evaluation, and improvements since the inception of the program. Additionally, the authors present the challenges and lessons we learned in development and implementation of a dynamic evaluation system that supports our career advancement program. The process of advancing within the program will be described in part 3.

  19. Particulate matter in California: part 2--Spatial, temporal, and compositional patterns of PM2.5, PM10-2.5, and PM10.

    PubMed

    Motallebi, Nehzat; Taylor, Clinton A; Croes, Bart E

    2003-12-01

    Geographic and temporal variations in the concentration and composition of particulate matter (PM) provide important insights into particle sources, atmospheric processes that influence particle formation, and PM management strategies. In the nonurban areas of California, annual-average PM2.5 and PM10 concentrations range from 3 to 10 microg/m3 and from 5 to 18 microg/m3, respectively. In the urban areas of California, annual-averages for PM2.5 range from 7 to 30 microg/m3, with observed 24-hr peaks reaching levels as high as 160 microg/m3. Within each air basin, exceedances are a mixture of isolated events as well as periods of elevated PM2.5 concentrations that are more prolonged and regional in nature. PM2.5 concentrations are generally highest during the winter months. The exception is the South Coast Air Basin, where fairly high values occur throughout the year. Annual-average PM2.5 mass, as well as the concentrations of major components, declined from 1988 to 2000. The declines are especially pronounced for the sulfate (SO4(2-)) and nitrate (NO3-) components of PM2.5 and PM10) and correlate with reductions in ambient levels of oxides of sulfur (SOx) and oxides of nitrogen (NOx). Annual averages for PM10-2.5 and PM10 exhibited similar downwind trends from 1994 to 1999, with a slightly less pronounced decrease in the coarse fraction.

  20. Age 60 Study, Part 2: Airline Pilot Age and Performance - A Review of the Scientific Literature

    DTIC Science & Technology

    1994-10-01

    accomplish the research objectives of Tasks 4 and 5 of the Age 60 Project, two preliminary steps must be taken. Step 1 is to develop a high -level...investigate an information processing model of pilot decision making that takes into account pilot experience and stress. They found that low and high ...the third of a year (grouping months 1, 4 , 7 and 10; months 2, 5, 8, and 11; and months 3, 6, 9, and 12) before computing accident rates. Then three

  1. Strategic Petroleum Reserve (SPR) oil storage cavern sulphur mines 2-4-5 certification tests and analysis. Part I: 1981 testing. Part II: 1982 testing

    SciTech Connect

    Beasley, R.R.

    1982-12-01

    Well leak tests and a cavern pressure were conducted in June through December 1981, and are described in Part I. The tests did not indicate conclusively that there was no leakage from the cavern, but the data indicate that cavern structural failure during oil storage is unlikely. The test results indicated that retesting and well workover were desirable prior to making a decision on the cavern use. Well leak tests were conducted in March through May 1982, and are described in Part II. The tests indicated that there was no significant leakage from wells 2 and 4 but that the leakage from wells 2A and 5 exceeded the DOE criterion. Because of the proximity of cavern 2-4-5 to the edge of the salt, this cavern should be considered for only one fill/withdrawal cycle prior to extensive reevaluation. 57 figures, 17 tables.

  2. Hexagonal-like Nb2O5 Nanoplates-Based Photodetectors and Photocatalyst with High Performances

    PubMed Central

    Liu, Hui; Gao, Nan; Liao, Meiyong; Fang, Xiaosheng

    2015-01-01

    Ultraviolet (UV) photodetectors are important tools in the fields of optical imaging, environmental monitoring, and air and water sterilization, as well as flame sensing and early rocket plume detection. Herein, hexagonal-like Nb2O5 nanoplates are synthesized using a facile solvothermal method. UV photodetectors based on single Nb2O5 nanoplates are constructed and the optoelectronic properties have been probed. The photodetectors show remarkable sensitivity with a high external quantum efficiency (EQE) of 9617%, and adequate wavelength selectivity with respect to UV-A light. In addition, the photodetectors exhibit robust stability and strong dependence of photocurrent on light intensity. Also, a low-cost drop-casting method is used to fabricate photodetectors based on Nb2O5 nanoplate film, which exhibit singular thermal stability. Moreover, the hexagonal-like Nb2O5 nanoplates show significantly better photocatalytic performances in decomposing Methylene-blue and Rhdamine B dyes than commercial Nb2O5. PMID:25578788

  3. Performance of the MIR Cooperative Solar Array After 2.5 Years in Orbit

    NASA Technical Reports Server (NTRS)

    Kerslake, Thomas W.; Hoffman, David J.

    1999-01-01

    The Mir Cooperative Solar Array (MCSA) was developed jointly by the United States and Russia to produce 6 kW of power for the Russian space station Mir. Four, multi-orbit test sequences were executed between June 1996 and December 1998 to measure MCSA electrical performance. A dedicated Fortran computer code was developed to analyze the detailed thermal-electrical performance of the MCSA. The computational performance results compared very favorably with the measured flight data in most cases. Minor performance degradation was detected in one current generating section of the MCSA. Yet overall, the flight data indicated the MCSA was meeting and exceeding performance expectations. There was no precipitous performance loss due to contamination or other causes after 2.5 years of operation. In this paper, we review the MCSA flight electrical performance tests, data and computational modeling and discuss findings from data comparisons with the computational results.

  4. Electrochemical Performance of a V2O5 Cathode for a Sodium Ion Battery

    NASA Astrophysics Data System (ADS)

    Van Nghia, Nguyen; Long, Pham Duy; Tan, Ta Anh; Jafian, Samuel; Hung, I.-Ming

    2017-02-01

    In this paper, layered vanadium pentoxide (V2O5) is employed as a cathode material for a sodium ion battery. The V2O5 particle sizes range from 200 nm to 500 nm and the shapes of the aggregated V2O5 particles are non-homogeneous and irregular. The material exhibits a first discharge capacity of approximately 208.1 mAh g-1. The structure of V2O5 changes to a NaxV2O5 structure after Na+ insertion at the first discharge; the structure of NaxV2O5 remains stable during cycling. After 40 cycles, the discharge capacity retains 61.2% of the capacity of the second cycle. The capacity of V2O5 at a high charge/discharge current rate of 1.0 C is 49.1% of capacity at 0.1 C. Furthermore, the capacity returns to the initial value as the discharge rate returns to 0.1 C. The results of electrochemical performance tests indicate that V2O5 is a potential cathode material for sodium ion batteries.

  5. Passive Synthetic Aperture Hitchhiker Imaging of Ground Moving Targets - Part 2: Performance Analysis.

    PubMed

    Wacks, Steven; Yazici, Birsen

    2014-07-08

    In Part 1 of this work, we present a passive synthetic aperture imaging and velocity estimation method for ground moving targets using a network of passive receivers. The method involves inversion of a Radon transform type forward model via a novel filtered backprojection approach combined with entropy optimization. The method is applicable to noncooperative transmitters of opportunity where the transmitter locations and transmitted waveforms are unknown. Furthermore, it can image multiple targets moving at different velocities in arbitrary imaging geometries. In this paper, we present a detailed analysis of the performance of our method. First the resolution analysis in position and velocity spaces is presented. The analysis identifies several factors that contribute positively or negativity towards position and velocity resolution. Next, we present a novel theory to analyze and predict smearing artifacts in position images due to error in velocity estimation of moving targets. Specifically, we show that small errors in the velocity estimation result in small positioning errors. We present extensive numerical simulations to demonstrate the theoretical results. While our primary interest lies in radar, the theory, methods and algorithms introduced in our work are also applicable to passive acoustic, seismic, and microwave imaging.

  6. Performance Assessment of the Optical Transient Detector and Lightning Imaging Sensor. Part 2; Clustering Algorithm

    NASA Technical Reports Server (NTRS)

    Mach, Douglas M.; Christian, Hugh J.; Blakeslee, Richard; Boccippio, Dennis J.; Goodman, Steve J.; Boeck, William

    2006-01-01

    We describe the clustering algorithm used by the Lightning Imaging Sensor (LIS) and the Optical Transient Detector (OTD) for combining the lightning pulse data into events, groups, flashes, and areas. Events are single pixels that exceed the LIS/OTD background level during a single frame (2 ms). Groups are clusters of events that occur within the same frame and in adjacent pixels. Flashes are clusters of groups that occur within 330 ms and either 5.5 km (for LIS) or 16.5 km (for OTD) of each other. Areas are clusters of flashes that occur within 16.5 km of each other. Many investigators are utilizing the LIS/OTD flash data; therefore, we test how variations in the algorithms for the event group and group-flash clustering affect the flash count for a subset of the LIS data. We divided the subset into areas with low (1-3), medium (4-15), high (16-63), and very high (64+) flashes to see how changes in the clustering parameters affect the flash rates in these different sizes of areas. We found that as long as the cluster parameters are within about a factor of two of the current values, the flash counts do not change by more than about 20%. Therefore, the flash clustering algorithm used by the LIS and OTD sensors create flash rates that are relatively insensitive to reasonable variations in the clustering algorithms.

  7. Nb2O5 microstructures: a high-performance anode for lithium ion batteries

    NASA Astrophysics Data System (ADS)

    Liu, Sainan; Zhou, Jiang; Cai, Zhenyang; Fang, Guozhao; Pan, Anqiang; Liang, Shuquan

    2016-11-01

    We report the synthesis of three-dimensional (3D) urchin-like Nb2O5 microstructures by a facile hydrothermal approach with subsequent annealing treatment. As anode materials for lithium-ion batteries, the 3D urchin-like Nb2O5 microstructures exhibit superior electrochemical performance with excellent rate capability as well as long-term cycling stability. The electrode delivers high capacity of 131 mA h g-1 after 1000 cycles at a high current density of 1 A g-1. The excellent electrochemical performance suggests the 3D urchin-like Nb2O5 microstructures may be a promising anode candidate for high-power lithium ion batteries.

  8. Performance characterization of the MiniVol PM{sub 2.5} sampler

    SciTech Connect

    Hill, J.S.; Patel, P.D.; Turner, J.R.

    1999-07-01

    Measurements were conducted to assess the MiniVol PM{sub 2.5} sampler performance for various particle preseparator configurations including flat and cup impaction stages. Laboratory measurements were conducted to determine the impactor collection efficiency as a function of particle size. Impactor cut points--the aerodynamic particle diameter exhibiting 50% collection efficiency--were 2.5 mm ({approximately} 10%) for the flat stage and 3.0 mm for the cup stage. Collection efficiency curves for cascade (tandem) impactor configurations (PM{sub 10} followed by PM{sub 2.5}) generally agreed with the single stage results. In all cases the collection efficiency curves exhibited the classical sigmoidal shape, albeit less steep than required for PM{sub 2.5} Federal Reference Method (FRM) samplers. Field data were collected at urban sites in St. Louis using MiniVol samplers collocated with a PM{sub 2.5} FRM sampler to quantify the MiniVol sampler precision and accuracy. Collocated sampler precision was 6% and 10% for MiniVol cascade impactors with flat PM{sub 2.5} stages and cup PM{sub 2.5} stages, respectively (N = 31). Both of these MiniVol configurations were deemed statistically equivalent to the FRM when the reported ambient mass concentrations were corrected for field blank values (N = 15).

  9. Earth Science Supplement to the Syllabus, Part 2, Topics 5-8, 1970 Edition. 1974 Reprint.

    ERIC Educational Resources Information Center

    New York State Education Dept., Albany. Bureau of Secondary Curriculum Development.

    This document contains investigation topics 5-8 in the earth science course developed by the University of the State of New York for secondary schools. Topics include energy in earth processes, insulation and the earth's surface, energy exchanges in the atmosphere, moisture and energy budgets, and environmental change. Each topic is preceded by…

  10. Metrology of Large Parts. Chapter 5

    NASA Technical Reports Server (NTRS)

    Stahl, H. Philip

    2012-01-01

    As discussed in the first chapter of this book, there are many different methods to measure a part using optical technology. Chapter 2 discussed the use of machine vision to measure macroscopic features such as length and position, which was extended to the use of interferometry as a linear measurement tool in chapter 3, and laser or other trackers to find the relation of key points on large parts in chapter 4. This chapter looks at measuring large parts to optical tolerances in the sub-micron range using interferometry, ranging, and optical tools discussed in the previous chapters. The purpose of this chapter is not to discuss specific metrology tools (such as interferometers or gauges), but to describe a systems engineering approach to testing large parts. Issues such as material warpage and temperature drifts that may be insignificant when measuring a part to micron levels under a microscope, as will be discussed in later chapters, can prove to be very important when making the same measurement over a larger part. In this chapter, we will define a set of guiding principles for successfully overcoming these challenges and illustrate the application of these principles with real world examples. While these examples are drawn from specific large optical testing applications, they inform the problems associated with testing any large part to optical tolerances. Manufacturing today relies on micrometer level part performance. Fields such as energy and transportation are demanding higher tolerances to provide increased efficiencies and fuel savings. By looking at how the optics industry approaches sub-micrometer metrology, one can gain a better understanding of the metrology challenges for any larger part specified to micrometer tolerances. Testing large parts, whether optical components or precision structures, to optical tolerances is just like testing small parts, only harder. Identical with what one does for small parts, a metrologist tests large parts and optics

  11. Solar power satellite system definition study. Part 2, volume 5: Space operations (construction and transportation)

    NASA Technical Reports Server (NTRS)

    Miller, K.; Davis, E. E.

    1977-01-01

    Construction and transportation systems and operations are described for the following combinations: (1) silicon photovoltaic CR=1 satellite constructed primarily in low earth orbit (LEO); (2) silicon photovoltaic CR=1 satellite constructed in geosynchronous earth orbit (GEO); (3) Rankine thermal engine satellite constructed primarily in LEO; and (4) Rankine thermal engine satellite constructed in GEO.

  12. A newly developed snow vehicle (SM100S) for Antarctica. Part 5: Result of general performance tests

    NASA Astrophysics Data System (ADS)

    Saito, Mitsuru; Seki, Tsuyoshi; Hosoya, Masayuki

    1992-11-01

    This report describes the results of the fundamental and the general performance tests for a newly developed snow vehicle, which will be used for the deep ice coring project at Dome Fuji, East Antarctica. The result of the tests showed that the vehicle generally satisfied the expected performance and the purpose of the systems design, but was partially unsatisfactory in its structure. The tests were carried out on the concrete pavement where its reproducibility is capable of comparing with the performance of similar vehicles and on the compacted snow surface which has the simulated hardness of the Antarctic snow.

  13. V2O5-C-SnO2 Hybrid Nanobelts as High Performance Anodes for Lithium-ion Batteries

    PubMed Central

    Zhang, Linfei; Yang, Mingyang; Zhang, Shengliang; Wu, Zefei; Amini, Abbas; Zhang, Yi; Wang, Dongyong; Bao, Shuhan; Lu, Zhouguang; Wang, Ning; Cheng, Chun

    2016-01-01

    The superior performance of metal oxide nanocomposites has introduced them as excellent candidates for emerging energy sources, and attracted significant attention in recent years. The drawback of these materials is their inherent structural pulverization which adversely impacts their performance and makes the rational design of stable nanocomposites a great challenge. In this work, functional V2O5-C-SnO2 hybrid nanobelts (VCSNs) with a stable structure are introduced where the ultradispersed SnO2 nanocrystals are tightly linked with glucose on the V2O5 surface. The nanostructured V2O5 acts as a supporting matrix as well as an active electrode component. Compared with existing carbon-V2O5 hybrid nanobelts, these hybrid nanobelts exhibit a much higher reversible capacity and architectural stability when used as anode materials for lithium-ion batteries. The superior cyclic performance of VCSNs can be attributed to the synergistic effects of SnO2 and V2O5. However, limited data are available for V2O5-based anodes in lithium-ion battery design. PMID:27677326

  14. V2O5-C-SnO2 Hybrid Nanobelts as High Performance Anodes for Lithium-ion Batteries

    NASA Astrophysics Data System (ADS)

    Zhang, Linfei; Yang, Mingyang; Zhang, Shengliang; Wu, Zefei; Amini, Abbas; Zhang, Yi; Wang, Dongyong; Bao, Shuhan; Lu, Zhouguang; Wang, Ning; Cheng, Chun

    2016-09-01

    The superior performance of metal oxide nanocomposites has introduced them as excellent candidates for emerging energy sources, and attracted significant attention in recent years. The drawback of these materials is their inherent structural pulverization which adversely impacts their performance and makes the rational design of stable nanocomposites a great challenge. In this work, functional V2O5-C-SnO2 hybrid nanobelts (VCSNs) with a stable structure are introduced where the ultradispersed SnO2 nanocrystals are tightly linked with glucose on the V2O5 surface. The nanostructured V2O5 acts as a supporting matrix as well as an active electrode component. Compared with existing carbon-V2O5 hybrid nanobelts, these hybrid nanobelts exhibit a much higher reversible capacity and architectural stability when used as anode materials for lithium-ion batteries. The superior cyclic performance of VCSNs can be attributed to the synergistic effects of SnO2 and V2O5. However, limited data are available for V2O5-based anodes in lithium-ion battery design.

  15. Group training in adolescent runners: influence on VO2max and 5-km race performance.

    PubMed

    Loprinzi, Paul D; Cardinal, Bradley J; Karp, Jason R; Brodowicz, Gary R

    2011-10-01

    The aims of this study were to (a) examine the interrelationships between training intensity, VO2max, and race performance in adolescent crosscountry runners and (b) determine if adolescent runners participating in a group crosscountry training program differ in the amount of training time at various intensities. In this study, 7 adolescent runners performed a laboratory-based VO2max test before and after a 9-week high-school crosscountry season. Heart rate (HR) and ventilatory threshold (VT) were used to identify 3 training zones for each runner based on the HR at ventilator threshold (HR(VT)): zone 1: >15 b·min(-1) below HR(VT); zone 2: between zone 1 and HR(VT); zone 3: >HR(VT). During each training session throughout the season, HR was measured to quantify the amount of training time in each of these 3 intensity zones. Results showed that the time in each of the 3 zones was not significantly associated with 5-km race performance. Zone 3 training time was positively associated with postseason VO2max (r = 0.73, p = 0.06); VO2max was significantly inversely associated with 5-km race performance (r = -0.77, p = 0.04). Each week, the amount of training time at, above, and below the VT was significantly different among the participants even though the training prescription for the group was standardized. The results suggest that, among adolescent crosscountry runners, training above the VT may be important in increasing VO2max and ultimately, race performance. Given the between-participant differences in the amount of training time in each HR zone, coaches should apply individual, rather than group, training programs.

  16. N-oxide 1,2,4,5-tetrazine-based high-performance energetic materials.

    PubMed

    Wei, Hao; Gao, Haixiang; Shreeve, Jean'ne M

    2014-12-15

    One route to high density and high performance energetic materials based on 1,2,4,5-tetrazine is the introduction of 2,4-di-N-oxide functionalities. Based on several examples and through theoretical analysis, the strategy of regioselective introduction of these moieties into 1,2,4,5-tetrazines has been developed. Using this methodology, various new tetrazine structures containing the N-oxide functionality were synthesized and fully characterized using IR, NMR, and mass spectroscopy, elemental analysis, and single-crystal X-ray analysis. Hydrogen peroxide (50 %) was used very effectively in lieu of the usual 90 % peroxide in this system to generate N-oxide tetrazine compounds successfully. Comparison of the experimental densities of N-oxide 1,2,4,5-tetrazine compounds with their 1,2,4,5-tetrazine precursors shows that introducing the N-oxide functionality is a highly effective and feasible method to enhance the density of these materials. The heats of formation for all compounds were calculated with Gaussian 03 (revision D.01) and these values were combined with measured densities to calculate detonation pressures (P) and velocities (νD ) of these energetic materials (Explo 5.0 v. 6.01). The new oxygen-containing tetrazines exhibit high density, good thermal stability, acceptable oxygen balance, positive heat of formation, and excellent detonation properties, which, in some cases, are superior to those of 1,3,5-tritnitrotoluene (TNT), 1,3,5-trinitrotriazacyclohexane (RDX), and octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX).

  17. Performance Assessment Design Principles Gleaned from Constructivist Learning Theory (Part 2)

    ERIC Educational Resources Information Center

    Zane, Thomas W.

    2009-01-01

    Just as objectivist theories have provided foundations for traditional tests, constructivist theories can offer foundations for performance assessment design and development methods. The tenets and principles embedded in various learning theories provide a solid foundation that can be combined with psychometric principles to help assessment…

  18. Software tools for developing parallel applications. Part 2: Interactive control and performance tuning

    SciTech Connect

    Brown, J.; Geist, A.; Pancake, C.; Rover, D.

    1997-04-01

    This paper continues the discussion of parallel tool support with an overview of the current state of tools for runtime control and performance tuning. Each is discussed in terms of the programmer needs addressed, the extent to which representative current tools meet those needs, and what new levels of tool support are important if parallel computing is to become more widespread.

  19. 40 CFR Appendix N to Part 50 - Interpretation of the National Ambient Air Quality Standards for PM2.5

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    .... 50, App. N Appendix N to Part 50—Interpretation of the National Ambient Air Quality Standards for PM2... accordance with part 58 of this chapter. Design values are the metrics (i.e., statistics) that are...

  20. A method to model fuze performance. Part 2: Calculation of target reflections with physical optics

    NASA Astrophysics Data System (ADS)

    Vogel, M. H.

    1989-01-01

    The derivation of (departing from the Maxwell equations) the electromagnetic fields, scattered by a perfectly conducting surface, is discussed. The expression of the scattered fields far from this surface in the total fields is given. The scattered fields are also expressed in terms of the incident magnetic field, which is assumed to be a known quantity. An integral over the scattering surface is performed. A simple expression for this integral is obtained by approximating the scattering surface by many small (planar) triangular surface patches.

  1. Music performance anxiety-part 2. a review of treatment options.

    PubMed

    Brugués, Ariadna Ortiz

    2011-09-01

    Music performance anxiety (MPA) affects many individuals independent of age, gender, experience, and hours of practice. In order to prevent MPA from happening or to alleviate it when it occurs, a review of the literature about its prevention and treatment was done. Forty-four articles, meeting evidence-based medicine (EBM) criteria, were identified and analyzed. Performance repertoire should be chosen based on the musician's skill level, and it should be practiced to the point of automaticity. Because of this, the role of music teachers is essential in preventing MPA. Prevention is the most effective method against MPA. Several treatments (psychological as well as pharmacological) have been studied on subjects in order to determine the best treatment for MPA. Cognitive-behavioral therapy (CBT) seems to be the most effective, but further investigation is desired. Some musicians, in addition to CBT, also take beta-blockers; however, these drugs should only be prescribed occasionally after analyzing the situation and considering the contraindications and possible side effects. Despite these conclusions, more randomized studies with larger, homogeneous groups of subjects would be desirable (according to the EBM criteria), as well as support for the necessity of both MPA prevention and optimized methods of treatment when it does occur.

  2. Performance of Charcoal Cookstoves for Haiti, Part 2: Results from the Controlled Cooking Test

    SciTech Connect

    Lask, Kathleen; Jones, Jennifer; Booker, Kayje; Ceballos, Cristina; Yang, Nina; Gadgil, Ashok

    2011-11-30

    Five charcoal cookstoves were tested using a Controlled Cooking Test (CCT) developed from cooking practices in Haiti. Cookstoves were tested for total burn time, specific fuel consumption, and emissions of carbon monoxide (CO), carbon dioxide (CO2), and the ratio of carbon monoxide to carbon dioxide (CO/CO2). These results are presented in this report along with LBNL testers’ observations regarding the usability of the stoves.

  3. Performance Analysis and Design Synthesis (PADS) computer program. Volume 2: Program description, part 1

    NASA Technical Reports Server (NTRS)

    1972-01-01

    The Performance Analysis and Design Synthesis (PADS) computer program has a two-fold purpose. It can size launch vehicles in conjunction with calculus-of-variations optimal trajectories and can also be used as a general-purpose branched trajectory optimization program. In the former use, it has the Space Shuttle Synthesis Program as well as a simplified stage weight module for optimally sizing manned recoverable launch vehicles. For trajectory optimization alone or with sizing, PADS has two trajectory modules. The first trajectory module uses the method of steepest descent; the second employs the method of quasilinearization, which requires a starting solution from the first trajectory module. For Volume 1 see N73-13199.

  4. Field significance of performance measures in the context of regional climate model evaluation. Part 2: precipitation

    NASA Astrophysics Data System (ADS)

    Ivanov, Martin; Warrach-Sagi, Kirsten; Wulfmeyer, Volker

    2017-02-01

    A new approach for rigorous spatial analysis of the downscaling performance of regional climate model (RCM) simulations is introduced. It is based on a multiple comparison of the local tests at the grid cells and is also known as `field' or `global' significance. The block length for the local resampling tests is precisely determined to adequately account for the time series structure. New performance measures for estimating the added value of downscaled data relative to the large-scale forcing fields are developed. The methodology is exemplarily applied to a standard EURO-CORDEX hindcast simulation with the Weather Research and Forecasting (WRF) model coupled with the land surface model NOAH at 0.11 ∘ grid resolution. Daily precipitation climatology for the 1990-2009 period is analysed for Germany for winter and summer in comparison with high-resolution gridded observations from the German Weather Service. The field significance test controls the proportion of falsely rejected local tests in a meaningful way and is robust to spatial dependence. Hence, the spatial patterns of the statistically significant local tests are also meaningful. We interpret them from a process-oriented perspective. While the downscaled precipitation distributions are statistically indistinguishable from the observed ones in most regions in summer, the biases of some distribution characteristics are significant over large areas in winter. WRF-NOAH generates appropriate stationary fine-scale climate features in the daily precipitation field over regions of complex topography in both seasons and appropriate transient fine-scale features almost everywhere in summer. As the added value of global climate model (GCM)-driven simulations cannot be smaller than this perfect-boundary estimate, this work demonstrates in a rigorous manner the clear additional value of dynamical downscaling over global climate simulations. The evaluation methodology has a broad spectrum of applicability as it is

  5. Physical modelling of the composting environment: A review. Part 2: Simulation performance

    SciTech Connect

    Mason, I.G. . E-mail: ian.mason@canterbury.ac.nz; Milke, M.W.

    2005-07-01

    This paper reviews previously published heat balance data for experimental and full-scale composting reactors, and then presents an evaluation of the simulation performance of laboratory and pilot-scale reactors, using both quantitative and qualitative temperature profile characteristics. The review indicates that laboratory-scale reactors have typically demonstrated markedly different heat balance behaviour in comparison to full-scale systems, with ventilative heat losses of 36-67%, and 70-95% of the total flux, respectively. Similarly, conductive/convective/radiative (CCR) heat losses from laboratory reactors have been reported at 33-62% of the total flux, whereas CCR losses from full-scale composting systems have ranged from 3% to 15% of the total. Full-scale windrow temperature-time profiles from the literature were characterised by the present authors. Areas bounded by the curve and a 40 deg. C baseline (A {sub 40}) exceeded 624 deg. C. days, areas bounded by the curve and a 55 deg. C baseline (A {sub 55}) exceeded 60 deg. C days, and times at 40 and 55 deg. C were >46 days and >24 days, respectively, over periods of 50-74 days. For forced aeration systems at full scale, values of A {sub 40} exceeded 224 deg. C days, values of A {sub 55} exceeded 26 deg. C days, and times at 40 and 55 deg. C were >14 days and >10 days, respectively, over periods of 15-35 days. Values of these four parameters for laboratory-scale reactors were typically considerably lower than for the full-scale systems, although temperature shape characteristics were often similar to those in full-scale profiles. Evaluation of laboratory-, pilot- and full-scale profiles from systems treating the same substrate showed that a laboratory-scale reactor and two pilot-scale reactors operated at comparatively high aeration rates poorly simulated full-scale temperature profiles. However, the curves from two moderately insulated, self-heating, pilot-scale reactors operated at relatively low aeration

  6. Physical modelling of the composting environment: a review. Part 2: Simulation performance.

    PubMed

    Mason, I G; Milke, M W

    2005-01-01

    This paper reviews previously published heat balance data for experimental and full-scale composting reactors, and then presents an evaluation of the simulation performance of laboratory and pilot-scale reactors, using both quantitative and qualitative temperature profile characteristics. The review indicates that laboratory-scale reactors have typically demonstrated markedly different heat balance behaviour in comparison to full-scale systems, with ventilative heat losses of 36-67%, and 70-95% of the total flux, respectively. Similarly, conductive/convective/radiative (CCR) heat losses from laboratory reactors have been reported at 33-62% of the total flux, whereas CCR losses from full-scale composting systems have ranged from 3% to 15% of the total. Full-scale windrow temperature-time profiles from the literature were characterised by the present authors. Areas bounded by the curve and a 40 degrees C baseline (A(40)) exceeded 624 degrees C. days, areas bounded by the curve and a 55 degrees C baseline (A(55)) exceeded 60 degrees C days, and times at 40 and 55 degrees C were >46 days and >24 days, respectively, over periods of 50-74 days. For forced aeration systems at full scale, values of A(40) exceeded 224 degrees C days, values of A(55) exceeded 26 degrees C days, and times at 40 and 55 degrees C were >14 days and >10 days, respectively, over periods of 15-35 days. Values of these four parameters for laboratory-scale reactors were typically considerably lower than for the full-scale systems, although temperature shape characteristics were often similar to those in full-scale profiles. Evaluation of laboratory-, pilot- and full-scale profiles from systems treating the same substrate showed that a laboratory-scale reactor and two pilot-scale reactors operated at comparatively high aeration rates poorly simulated full-scale temperature profiles. However, the curves from two moderately insulated, self-heating, pilot-scale reactors operated at relatively low

  7. The potential of pulse-jet baghouses for utility boilers. Part 2: Performance of pulse-jet fabric filter pilot plants

    SciTech Connect

    Bustard, C. ); Cushing, K.M. ); Chang, R.L. )

    1992-09-01

    Pulse-jet fabric filters (PJFFs) are widely used in U.S. industrial boiler applications and in utility and industrial boilers abroad. Their small size and reduced cost relative to more conventional reverse-gas baghouses makes the use of PJFFs appear to be an attractive particulate control option for utility boilers. This paper (Part 2 of a three-part series) summarizes the results of pilot PJFF studies sponsored by the Electric Power Research Institute at different utility sites in the United States. The purpose of these tests is to evaluate PJFF performance for U.S. fossil-fuel fired applications. These data are also used to corroborate the results of a recent worldwide survey of PJFF user experience, as described in Part 1 of this series. Part 3 will provide a cost comparison of PJFFs to other particulate control options such as electrostatic precipitators and reverse-gas baghouses. 30 refs., 6 figs., 5 tabs.

  8. Determination of 5-Bromo-2’-Deoxyuridine (BrdU) in Well Water by High Performance Liquid Chromatography (HPLC)

    DTIC Science & Technology

    1992-09-01

    HIGH PERFORMANCE LIQUID CHROMATOGRAPHY (HPLC...Securrty Classification) Determination of 5-Bromo-2’-Deoxyuridine (BrdU) in Well Water by High Performance Liquid Chromatography (hPLC) 12. PERSONAL...PLOT OF BrdU STABILITY VERSUS TIME ....................... 10 ii DETERMINATION OF 5-BROMO-2’-DEOXY-URIDINE (BrdU) IN WELL WATER BY HIGH PERFORMANCE LIQUID CHROMATOGRAPHY

  9. 50 CFR Figure 5 to Part 679 - Kodiak Island Type 1, 2, and 3 Nonpelagic Trawl Closure Status and Marmot Bay Tanner Crab...

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 50 Wildlife and Fisheries 13 2014-10-01 2014-10-01 false Kodiak Island Type 1, 2, and 3 Nonpelagic Trawl Closure Status and Marmot Bay Tanner Crab Protection Area 5 Figure 5 to Part 679 Wildlife and... to Part 679—Kodiak Island Type 1, 2, and 3 Nonpelagic Trawl Closure Status and Marmot Bay Tanner...

  10. Improved electrochemical performance of spinel LiMn1.5Ni0.5O4 through MgF2 nano-coating

    DOE PAGES

    Wu, Qing; Zhang, Xiaoping; Sun, Shuwei; ...

    2015-07-08

    In this paper, a spinel LiMn1.5Ni0.5O4 (LMNO) cathode material synthesized by a sol–gel method is modified by MgF2 nano-coating via a wet coating strategy. The results of X-ray diffraction (XRD), Raman spectroscopy, field emission scanning electron microscopy (FESEM) and high resolution transmission electron microscopy (HRTEM) showed that the MgF2 nano-coating layers do not physically change the bulk structure of the pristine material. Compared with the pristine compound, the MgF2-coated LMNO electrodes display enhanced cycling stabilities. Particularly, the 5 wt% MgF2-coated LMNO demonstrates the best reversibility, with a capacity retention of 89.9% after 100 cycles, much higher than that of themore » pristine material, 69.3%. The dQ/dV analysis and apparent Li+ diffusion coefficient calculation prove that the kinetic properties are enhanced after MgF2 surface modification, which partly explains the improved electrochemical performances. Electrochemical impedance spectroscopy (EIS) and Fourier transform infrared spectroscopy (FTIR) data confirm that the MgF2 coating layer helps in suppressing the fast growth of the solid electrolyte interface (SEI) film in repeated cycling, which effectively stabilizes the spinel structure. Finally and additionally, differential scanning calorimetry (DSC) tests show that the MgF2 nano-coating layer also helps in enhancing the thermal stability of the LMNO cathode.« less

  11. Combustion chemistry and flame structure of furan group biofuels using molecular-beam mass spectrometry and gas chromatography - Part III: 2,5-Dimethylfuran.

    PubMed

    Togbé, Casimir; Tran, Luc-Sy; Liu, Dong; Felsmann, Daniel; Oßwald, Patrick; Glaude, Pierre-Alexandre; Sirjean, Baptiste; Fournet, René; Battin-Leclerc, Frédérique; Kohse-Höinghaus, Katharina

    2014-03-01

    This work is the third part of a study focusing on the combustion chemistry and flame structure of furan and selected alkylated derivatives, i.e. furan in Part I, 2-methylfuran (MF) in Part II, and 2,5-dimethylfuran (DMF) in the present work. Two premixed low-pressure (20 and 40 mbar) flat argon-diluted (50%) flames of DMF were studied with electron-ionization molecular-beam mass spectrometry (EI-MBMS) and gas chromatography (GC) under two equivalence ratios (φ=1.0 and 1.7). Mole fractions of reactants, products, and stable and radical intermediates were measured as a function of the distance to the burner. Kinetic modeling was performed using a reaction mechanism that was further developed in the present series, including Part I and Part II. A reasonable agreement between the present experimental results and the simulation is observed. The main reaction pathways of DMF consumption were derived from a reaction flow analysis. Also, a comparison of the key features for the three flames is presented, as well as a comparison between these flames of furanic compounds and those of other fuels. An a priori surprising ability of DMF to form soot precursors (e.g. 1,3-cyclopentadiene or benzene) compared to less substituted furans and to other fuels has been experimentally observed and is well explained in the model.

  12. Decomposition of Balanced Matrices. Part 5: Goggles

    DTIC Science & Technology

    1991-10-01

    A D-A 247 462 Management Science Research Report #MSRR-573 1~ ~~112 Eil 11 I Decomposition of Balanced Matrices . Part V: Goggles Michele Conforti 12...9001705. I Dipartimento di Matematica Pura ed Applicata, UniversitA di Padova, Via Belzoni 7, 35131 Padova, Italy.f 2 Carnegie Mellon University...NUMBER 4. TITLE (and Subtitle) 5. TYPE OF REPORT & PERIOD COVERED DECOMPOSITION OF BALANCED MATRICES . Technical Report, Oct 1991 PART V: GOGGLES 6

  13. Psychiatric liability: Part 2.

    PubMed

    Fiesta, J

    1998-08-01

    Psychiatric health care providers' liability extends from clinical cases--medication errors, misdiagnosis, etc.--to particular issues unique to the mental health care setting. Part 2 continues discussion begun in the July issue of lawsuits common to this setting.

  14. Percent utilization of VO2 max at 5-km competition velocity does not determine time performance at 5 km among elite distance runners.

    PubMed

    Støa, Eva Maria; Støren, Øyvind; Enoksen, Eystein; Ingjer, Frank

    2010-05-01

    The present study investigated to what extent maximum oxygen uptake (VO2 max) and fractional utilization (%VO2 max) in 5-km competition speed correlate with 5-km performance times among elite long distance runners. Eight elite long distance runners with 5-km performance times of 15.10 minutes ( +/- 32 seconds) were tested for VO2 max during an incremental protocol and for %VO2 max during an 8-minute treadmill test at the velocity representing their 5-km seasonal best performance time. There was no correlation between fractional utilization and 5-km performance. The study showed no significant difference between VO2 max obtained during an incremental VO2 max test and %VO2 max when running for 8 minutes at the runner's individual 5-km competition speed. The 5-km time was related to the runner's VO2 max even in a homogenous high-level performance group. In conclusion, the present study found no relationship between fractional utilization and 5-km performance time. Training aiming to increase %VO2 max may thus be of little or no importance in performance enhancement for competitions lasting up to approximately 20 minutes.

  15. Life-Cycle Assessment of Energy and Environmental Impacts of LED Lighting Products Part 2: LED Manufacturing and Performance

    SciTech Connect

    Scholand, Michael; Dillon, Heather E.

    2012-05-01

    Part 2 of the project (this report) uses the conclusions from Part 1 as a point of departure to focus on two objectives: producing a more detailed and conservative assessment of the manufacturing process and providing a comparative LCA with other lighting products based on the improved manufacturing analysis and taking into consideration a wider range of environmental impacts. In this study, we first analyzed the manufacturing process for a white-light LED (based on a sapphire-substrate, blue-light, gallium-nitride LED pumping a yellow phosphor), to understand the impacts of the manufacturing process. We then conducted a comparative LCA, looking at the impacts associated with the Philips Master LEDbulb and comparing those to a CFL and an incandescent lamp. The comparison took into account the Philips Master LEDbulb as it is now in 2012 and then projected forward what it might be in 2017, accounting for some of the anticipated improvements in LED manufacturing, performance and driver electronics.

  16. Assessment of NASA GISS CMIP5 and Post-CMIP5 Simulated Clouds and TOA Radiation Budgets Using Satellite Observations. Part 2; TOA Radiation Budget and CREs

    NASA Technical Reports Server (NTRS)

    Stanfield, Ryan E.; Dong, Xiquan; Xi, Baike; Del Genio, Anthony D.; Minnis, Patrick; Doelling, David; Loeb, Norman

    2014-01-01

    In Part I of this study, the NASA GISS Coupled Model Intercomparison Project (CMIP5) and post-CMIP5 (herein called C5 and P5, respectively) simulated cloud properties were assessed utilizing multiple satellite observations, with a particular focus on the southern midlatitudes (SMLs). This study applies the knowledge gained from Part I of this series to evaluate the modeled TOA radiation budgets and cloud radiative effects (CREs) globally using CERES EBAF (CE) satellite observations and the impact of regional cloud properties and water vapor on the TOA radiation budgets. Comparisons revealed that the P5- and C5-simulated global means of clear-sky and all-sky outgoing longwave radiation (OLR) match well with CE observations, while biases are observed regionally. Negative biases are found in both P5- and C5-simulated clear-sky OLR. P5-simulated all-sky albedo slightly increased over the SMLs due to the increase in low-level cloud fraction from the new planetary boundary layer (PBL) scheme. Shortwave, longwave, and net CRE are quantitatively analyzed as well. Regions of strong large-scale atmospheric upwelling/downwelling motion are also defined to compare regional differences across multiple cloud and radiative variables. In general, the P5 and C5 simulations agree with the observations better over the downwelling regime than over the upwelling regime. Comparing the results herein with the cloud property comparisons presented in Part I, the modeled TOA radiation budgets and CREs agree well with the CE observations. These results, combined with results in Part I, have quantitatively estimated how much improvement is found in the P5-simulated cloud and radiative properties, particularly over the SMLs and tropics, due to the implementation of the new PBL and convection schemes.

  17. 10. SITE OVERVIEW. PART 5 OF 6 PART PANORAMA WITH ...

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

    10. SITE OVERVIEW. PART 5 OF 6 PART PANORAMA WITH NOS. CA-265-6 TO CA-265-11. ARROYO SECO PARKWAY AS SEEN FROM RADIO TOWER HILL. PART 5 SHOWS ARROYO SECO PARKWAY AND AVENUE 43 BRIDGE AT RIGHT REAR. LOOKING 334° NNW. - Arroyo Seco Parkway, Los Angeles to Pasadena, Los Angeles, Los Angeles County, CA

  18. The 2.5 kW advanced technology ion thruster. [design analysis and performance tests

    NASA Technical Reports Server (NTRS)

    Poeschel, R. L.

    1976-01-01

    A representative thruster was extensively documented with respect to performance parameters and characteristics at selected ion beam currents in the 0.5 to 2.75 A range, including measurements of thrust losses resulting from doubly-charged ions and ion beam divergence. Corrected total efficiency was shown to be relatively insensitive to operating parameter selection at any given power level. Factors affecting doubly-charged ionization were studied and it was found that the fraction of doubly-charged ions is directly proportional to the discharge chamber propellant utilization. The parameter that most affects this proportionality is the accel aperture diameter (which controls neutral atom loss). Thruster-power conditioner interactions were studied with the result that previous power supply specifications remain satisfactory. Options for reducing the number of power supplies required were demonstrated to be feasible. Gimbal actuator designs were studied with the goal of selecting a particular approach for design and development. The conclusion drawn was that optimum gimbal actuator design depends heavily on the thruster application and consequently the effort was concluded by developing a computer program to aid in specifying the gimbal requirements for the thrust vectoring required in a specific application.

  19. Steroids Update, Part 1 and Part 2.

    ERIC Educational Resources Information Center

    Miller, Calvin; Duda, Marty

    1986-01-01

    Part 1 of this two-part article describes the views of a physician who believes that athletes who want to take steroids are best protected by receiving a prescription and monitoring. Part 2 discusses the more general view of physicians that steroids should not be prescribed but perhaps should be monitored. (MT)

  20. Impact of Intellectual Capital on Organisational Performance: An Empirical Study of Companies in the Hang Seng Index (Part 2)

    ERIC Educational Resources Information Center

    Chan, Kin Hang

    2009-01-01

    Purpose: The purpose of this paper, which is written in two parts, is to investigate empirically if intellectual capital (IC) has an impact on the financial aspects of organisational performance as well as attempting to identify the IC components that may be the drivers for the leading financial indicators of listed companies. The study sought…

  1. Performance of a 2.5 THz Receiver Front-End for Spaceborne Applications

    NASA Technical Reports Server (NTRS)

    Gaidis, Michael C.; Pickett, H. M.; Siegel, P. H.; Smith, C. D.; Smith, R. P.; Martin, S. C.

    1999-01-01

    The OH radical plays a significant role in a great many of the known ozone destruction cycles, and has become the focus of an important radiometer development effort for NASA's Earth Observing System Chem I satellite, which will monitor and study many tropospheric and stratospheric gases and is scheduled for launch in 2002. Here we describe the design, fabrication, and testing of a receiver front end used to detect the OH signals at 2.5 THz. This is to be the first Terahertz heterodyne receiver to be flown in space. The challenges of producing the necessary high-performance mixers are numerous, but for this application, there is the added challenge of designing a robust receiver which can withstand the environmental extremes of a rocket launch and five years in space. The receiver front-end consists of the following components: a four-port dual-polarization diplexer, off-axis elliptical feed mirrors, mixers for horizontal and vertical polarization, support structures allowing simple and rugged alignment, low noise IF amplification from 7.7 to 21.1 GHz, and mixer DC bias circuitry. The front-end design, alignment, and operation will be covered in depth, followed by a discussion of the most recent results in receiver noise and dual-mode horn beam patterns. JPL MOMED mixers are employed, and have resulted in receiver noise temperatures of 14,500 K, DSB with LO frequency 2.522 GHz and IF of 12.8 GHz. Horn beam patterns correspond well with theory, with no significant sidelobes above the -25 dB level. Considering the high-quality beam of this receiver, these results are competitive with the best reported in the literature.

  2. 2. SITE OVERVIEW. PART 2 OF 4 PART PANORAMA WITH ...

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

    2. SITE OVERVIEW. PART 2 OF 4 PART PANORAMA WITH NOS. CA-265-1 TO CA-265-4. INTERCHANGE OF ARROYO SECO PARKWAY, INTERSTATE 1-5, AND FIGUEROA STREET AT CROSSINGS OF THE LOS ANGELES RIVER AS SEEN FROM GRAND VIEW POINT IN ELYSIAN PARK. VIEW 2 SHOWS LOS ANGELES RIVER AND FIGUEROA STREET BRIDGE IN FOREGROUND; INTERSTATE I-5 AT CENTER; AND ARROYO SECO PARKWAY AT RIGHT. LOOKING 30° NNE. - Arroyo Seco Parkway, Los Angeles to Pasadena, Los Angeles, Los Angeles County, CA

  3. Shuttle/Agena study. Volume 2, part 2: Agena tug configurations, Shuttle/Agena interface, performance, safety, cost

    NASA Technical Reports Server (NTRS)

    1972-01-01

    An evaluation of the compatibility of the space shuttle and Agena rocket vehicle was conducted. The Agena space tug configuration design is described in terms of the total vehicle system as well as the individual subsystems and major assemblies and components. The complete interface between the Agena space tug and the space shuttle orbiter is defined for in-flight and ground operations. The derivation and design of an evolutionary stage is also presented. This vehicle conforms to the same guidelines and interface requirements as the Agena space tug. Performance data developed for both vehicles for each of the three study baseline missions are included.

  4. 40 CFR Appendix O to Part 50 - Reference Method for the Determination of Coarse Particulate Matter as PM10-2.5 in the Atmosphere

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... provides for the measurement of the mass concentration of coarse particulate matter (PM10-2.5) in ambient..., collocated measurements of PM10 and PM2.5, where the PM10 measurements are obtained with a specially approved... conventional PM10 samplers described in appendix J of this part. Measurements obtained with a PM10c sampler...

  5. 40 CFR Appendix O to Part 50 - Reference Method for the Determination of Coarse Particulate Matter as PM10-2.5 in the Atmosphere

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... provides for the measurement of the mass concentration of coarse particulate matter (PM10-2.5) in ambient..., collocated measurements of PM10 and PM2.5, where the PM10 measurements are obtained with a specially approved... conventional PM10 samplers described in appendix J of this part. Measurements obtained with a PM10c sampler...

  6. 40 CFR Appendix O to Part 50 - Reference Method for the Determination of Coarse Particulate Matter as PM10-2.5 in the Atmosphere

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... provides for the measurement of the mass concentration of coarse particulate matter (PM10-2.5) in ambient..., collocated measurements of PM10 and PM2.5, where the PM10 measurements are obtained with a specially approved... conventional PM10 samplers described in appendix J of this part. Measurements obtained with a PM10c sampler...

  7. Basic Electricity. Part 2.

    ERIC Educational Resources Information Center

    Kilmer, Donald C.

    This guide, the second (part 2) in a set of four guides, is designed for the student interested in a vocation in electrical work, and includes two units: Unit IV--Electrical Theory, covering thirteen lessons (matter, the atom, electrical charges in the atom, rules of electric charges, electricity, atoms in an electrical conductor, electrical…

  8. Characterizations of four specimens processed as a part of the M553 sphere forming experiment performed during the Skylab 1 and 2 flight

    NASA Technical Reports Server (NTRS)

    Hubbard, J. L.; Johnson, J. W.; Brown, J. L.

    1973-01-01

    Four specimens identified as SL-1.3, SL-1.8, SL-1.9 and SL-2.5 were submitted for metallurgical characterization. These specimens had been processed in the M512 Facility as a part of the M553 Sphere Forming Experiment performed during the Skylab 1/2 flight. Three of these specimens, SL-1.3, SL-1.8, and SL-2.5 were designed to be melted completely by the electron beam and detach themselves from their support posts and resolidify while floating free in the near zero gravity and vacuum environment of space. Specimens SL-1.3 and SL-1.8 were completely melted, but it is believed they did not leave their posts before solidifying. Specimen SL-2.5 was only partially melted. Specimen SL-1.9 was to be completely melted and retained on a large sting which was accomplished as planned. The nominal composition of the four specimens was: (1) SL-1.3 - Ni 12% Sn; (2) SL-1.8 - Ni 30% Cu; (3) SL-1.9 - Pure Ni; and (4) SL-2.5 - Pure Ni. These four specimens have been examined according to the Phase B Characterization Plan. The results are discussed and compared with similar characterization analyses run on ground base specimens.

  9. Synthesis and biological evaluation of novel pyrrolidine-2,5-dione derivatives as potential antidepressant agents. Part 1.

    PubMed

    Wróbel, Martyna Z; Chodkowski, Andrzej; Herold, Franciszek; Gomółka, Anna; Kleps, Jerzy; Mazurek, Aleksander P; Pluciński, Franciszek; Mazurek, Andrzej; Nowak, Gabriel; Siwek, Agata; Stachowicz, Katarzyna; Sławińska, Anna; Wolak, Małgorzata; Szewczyk, Bernadeta; Satała, Grzegorz; Bojarski, Andrzej J; Turło, Jadwiga

    2013-05-01

    A series of 3-(1H-indol-3-yl)pyrrolidine-2,5-dione derivatives was synthesized and their biological activity was evaluated. The chemical structures of the newly prepared compounds were confirmed by (1)H NMR, (13)C NMR and ESI-HRMS spectra data. All tested compounds proved to be potent 5-HT1A receptor and serotonin transporter protein (SERT) ligands. Among them, compounds 15, 18, 19 and 30 showed significant affinity for 5-HT1A and SERT. Computer docking simulations carried out for compounds 15, 31 and 32 to models of 5-HT1A receptor and SERT confirm the results of biological tests. Due to high affinity for the 5-HT1A receptor and moderate affinity for SERT, compounds 31, 32, 35, and 37 were evaluated for their affinity for D2L, 5-HT6, 5-HT7 and 5-HT2A receptors. In vivo tests, in turn, resulted in determining the functional activity of compounds 15, 18, 19 and 30 to the 5-HT1A receptor. The results of these tests indicate that all of the ligands possess properties characteristic of 5-HT1A receptor agonists.

  10. Fabrication of V2O5 with various morphologies for high-performance electrochemical capacitor

    NASA Astrophysics Data System (ADS)

    Zhang, Yifu; Zheng, Jiqi; Zhao, Yunfeng; Hu, Tao; Gao, Zhanming; Meng, Changgong

    2016-07-01

    Three types of V2O5 structures including nanobelts, nanoparticles and microspheres were synthesized by a simple hydrothermal route and combination of calcination. The morphology of the sample depends on the quantity of oxalic acid used in the experiments. V2O5 nanobelts, nanoparticles and microspheres were respectively obtained when 0.63, 1.89 and 3.78 g of oxalic acid were used. The composition, morphology and structure of the samples were characterized by XRD, IR, SEM and TEM, respectively. The electrochemical properties of V2O5 nanobelts, nanoparticles and microspheres as electrodes in a supercapacitor device were measured using cyclic voltammetry (CV) and galvanostatic charge-discharge (GCD). The electrochemical results indicate that V2O5 microspheres lead to a significant improvement of storage capacity and they show the largest specific capacitance of 308 F g-1 when used as supercapacitor electrode in 1 mol L-1 LiNO3 electrolyte. It turns out that V2O5 microsphere is an ideal material compared with other morphologies for supercapacitor electrode in the present work.

  11. Enhanced performance of dye-sensitized solar cells based on P25/Ta2O5 composite films

    NASA Astrophysics Data System (ADS)

    Jiang, Qingsong; Gao, Jian; Yi, Lin; Hu, Guang; Zhang, Jun

    2016-04-01

    In this paper, novel titanium dioxide/tantalum pentoxide (P25/Ta2O5) composite films have been successfully fabricated and applied to dye-sensitized solar cells (DSSCs). Ta2O5 nanoparticles are synthesized by a simple low-temperature solvothermal method. The influence of Ta2O5 nanoparticles on photovoltaic performance of DSSCs is systematically investigated. As a result, the DSSC based on 10 wt% Ta2O5 incorporated P25 film exhibits excellent photovoltaic performance with a power conversion efficiency (PCE) as high as 5.85 %. Compared to a reference DSSC based on the pure P25 film (4.93 %), the PCE of DSSCs has been remarkably enhanced by 19 %. Such enhancement can be mainly attributed to the higher electron collection efficiency in P25/Ta2O5 composite films, which result from the suppression of the electron recombination at the photoanode/electrolyte interface.

  12. FIELD PERFORMANCE OF PM 2.5 FEDERAL REFERENCE METHOD SAMPLERS

    EPA Science Inventory

    The results of several research field studies were evaluated to estimate the precision and bias of various designated PM2.5 Federal Reference Method (FRM) samplers. Precision was high in three carefully conducted research studies where all operational activities were strictly ...

  13. Optimal design analysis for thermal performance of high power 2.5D package

    NASA Astrophysics Data System (ADS)

    Xiaoyang, Liu; He, Ma; Daquan, Yu; Wenlu, Chen; Xiaolong, Wu

    2016-03-01

    Based on ANSYS and Icepak softwares, the numerical analysis method is used to build up the thermal analysis model of the 2.5D package, which contains a high power CPU chip. The focus of the research is on the determination of the contributing factors and their effects on the thermal resistance and heat distribution of the package. The parametric analysis illustrates that the substrate conductivity, TIM conductivity and fin height are more crucial for heat conduction in the package. Furthermore, these major parameters are compared and analyzed by orthogonal tests, and the optimal solution for 2.5D integration is proposed. The factors' influence patterns on thermal resistance, obtained in this article, could be utilized as a thermal design reference. Project supported by the National S & T Major Projects (No. 2011ZX02709-2) and the China National Science Foundation (No. 61176098).

  14. Alkali doped poly (2,5-benzimidazole) membrane for alkaline water electrolysis: Characterization and performance

    NASA Astrophysics Data System (ADS)

    Diaz, Liliana A.; Hnát, Jaromír; Heredia, Nayra; Bruno, Mariano M.; Viva, Federico A.; Paidar, Martin; Corti, Horacio R.; Bouzek, Karel; Abuin, Graciela C.

    2016-04-01

    The properties and performance of linear and cross-linked KOH doped ABPBI membranes as electrolyte/separator for zero gap alkaline water electrolysis cells are evaluated and compared with a commercial Zirfon® diaphragm. Stability in alkaline environment, swelling, thermal properties, water sorption, KOH uptake and conductivity of linear (L-ABPBI) and cross-linked (C-ABPBI) membranes doped with different concentrations of KOH are analyzed. Linear membranes show stability up to 3.0 mol·dm-3 KOH doping, while cross-linked membranes are stable up to 4.2 mol·dm-3 KOH doping. Both kinds of membranes exhibit good thermal stability and reasonable specific ionic conductivity at 22 °C in the range between 7 and 25 mS·cm-1, being slightly higher the conductivity of C-ABPBI membranes than that of L-ABPBI ones. In short-term electrolysis tests both L-ABPBI and C-ABPBI membranes show better performance than Zirfon diaphragm in the range from 50 to 70 °C. A current density of 335 mA·cm-2 at a cell voltage of 2.0 V is attained with C-ABPBI membranes doped in 3 mol·dm-3 KOH at 70 °C, a performance comparable with that of commercial units operating at temperatures ca. 80 °C and 30 wt% KOH (6.7 mol·dm-3) as electrolyte.

  15. Nursing Care Hour Standards Study. Part 5 thru Part 8

    DTIC Science & Technology

    1981-09-01

    Linens .. 5 1 2 3 5 Diaper Change ..... ................ 5 1 3 10 5 _ Incontinent Care ....... ............... 2 1 2 5 7 10 20 PCIS 17-19 MOBILITY... Diaper or Linen Weight .... ................ . 5 1 2 2 3 6 1 2 3 6 9 12 Diaper Change ... ................. .. 5 1 1 3 4 15 Incontinent Care I Age Group...administer tube feeding, flush tube with water, clamp tube, record, and then remove feeding equipment from area. ELIMINATION: INCONTINENT CARE: Place equipment

  16. Partial Southwest Elevation Mill #5 West (Part 3), Partial ...

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

    Partial Southwest Elevation - Mill #5 West (Part 3), Partial Southwest Elevation - Mill #5 West (with Section of Courtyard) (Parts 1 & 2) - Boott Cotton Mills, John Street at Merrimack River, Lowell, Middlesex County, MA

  17. Exploring the Thermoelectric Performance of BaGd2NiO5 Haldane Gap Materials.

    PubMed

    Nasani, Narendar; Oliveira Rocha, Carlos Miguel; Kovalevsky, Andrei V; Otero Irurueta, Gonzalo; Populoh, Sascha; Thiel, Philipp; Weidenkaff, Anke; Neto da Silva, Fernando; Fagg, Duncan P

    2017-02-20

    One-dimensional Haldane gap materials, such as the rare earth barium chain nickelates, have received great interest due to their vibrant one-dimensional spin antiferromagnetic character and unique structure. Herein we report how these 1D structural features can also be highly beneficial for thermoelectric applications by analysis of the system CaxBaGd2-xNiO5 0 ≤ x ≤ 0.25. Attractive Seebeck coefficients of 140-280 μV K(-1) at 350-1300 K are retained even at high acceptor-substitution levels, provided by the interplay of low dimensionality and electronic correlations. Furthermore, the highly anisotropic crystal structure of Haldane gap materials allows very low thermal conductivities, reaching only 1.5 W m(-1) K(-1) at temperatures above 1000 K, one of the lowest values currently documented for prospective oxide thermoelectrics. Although calcium substitution in BaGd2NiO5 increases the electrical conductivity up to 5-6 S cm(-1) at 1150 K < T < 1300 K, this level remains insufficient for thermoelectric applications. Hence, the combination of highly promising Seebeck coefficients and low thermal conductivities offered by this 1D material type underscores a potential new structure type for thermoelectric materials, where the main challenge will be to engineer the electronic band structure and, probably, microstructural features to further enhance the mobility of the charge carriers.

  18. Bumblebee program: Aerodynamic data. Part 3: Pressure fields at Mach numbers 1.5 and 2.0

    NASA Technical Reports Server (NTRS)

    Barnes, G. A.; Cronvich, L. L.

    1979-01-01

    A large amount of fundamental aerodynamic missile data, which were stored for a number of years at the Applied Physics Laboratory, are reported. Data that supplements the M = 2.0 flow field data are provided. The Mach number effect by means of pressure fields only, at M = 1.5 and 2.0, and at angles of attack up to 23 deg at a mid-body station where a wing might be located is described.

  19. Airborne and Ground-Based Measurements Using a High-Performance Raman Lidar. Part 2; Ground Based

    NASA Technical Reports Server (NTRS)

    Whiteman, David N.; Cadirola, Martin; Venable, Demetrius; Connell, Rasheen; Rush, Kurt; Leblanc, Thierry; McDermid, Stuart

    2009-01-01

    The same RASL hardware as described in part I was installed in a ground-based mobile trailer and used in a water vapor lidar intercomparison campaign, hosted at Table Mountain, CA, under the auspices of the Network for the Detection of Atmospheric Composition Change (NDACC). The converted RASL hardware demonstrated high sensitivity to lower stratospheric water vapor indicating that profiling water vapor at those altitudes with sufficient accuracy to monitor climate change is possible. The measurements from Table Mountain also were used to explain the reason, and correct , for sub-optimal airborne aerosol extinction performance during the flight campaign.

  20. Microwave assisted novel MoBi2S5 nanoflowers: Synthesis, characterization, photoelectrochemical performance

    NASA Astrophysics Data System (ADS)

    Pawar, Nita B.; Mali, Sawanta S.; Kharade, Suvarta D.; Kondalkar, Vijay V.; Ghanwat, Vishvanath B.; Khot, Kishorkumar V.; Patil, Pramod S.; Bhosale, Popatrao N.

    2016-11-01

    In the present article, we have studied the effect of post annealing treatment on microstructural, optical and photoelectrochemical (PEC) properties of MoBi2S5 thin films synthesized by microwave assisted technique. The synthesized thin films are vacuum annealed for 4 h at 473 K temperature. The X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDS), scanning electron microscopy (SEM) and UV-Vis-NIR spectrophotometer techniques were used for characterization of the as deposited and annealed MoBi2S5 thin films. The XRD patterns confirm the synthesized and annealed thin films have nanocrystalline nature with rhombohedral-orthorhombic crystal structure. SEM micrographs indicate that, nanoflowers exhibit sharper end after annealing. The optical absorption study illustrates that the optical band gap energy has been decrease from 2.0 eV to 1.75 eV with annealing. Finally, applicability of synthesized thin films has been checked for PEC property. The J-V curves revealed that synthesized thin film photoanodes are suitable for PEC cell application. As well, used simple, economical method has great potential for synthesis of various thin film materials.

  1. Properties and Performance Attributes of Novel Co-extruded Polyolefin Battery Separator Materials. Part 2; Electrical Properties

    NASA Technical Reports Server (NTRS)

    Baldwin, Richard S.

    2013-01-01

    As NASA prepares for its next era of manned spaceflight missions, advanced energy storage technologies are being developed and evaluated to address and enhance future mission needs and technical requirements. Cell-level components for advanced lithium-ion batteries possessing higher energy, more reliable performance and enhanced, inherent safety characteristics have been under development within the NASA infrastructure. A key component for safe and reliable cell performance is the cell separator, which separates the two energetic electrodes and functions to inhibit the occurrence of an internal short circuit but preserves an ionic current. Recently, a new generation of co-extruded separator films has been developed by ExxonMobil Chemical and introduced into their battery separator product portfolio. Several grades of this new separator material were evaluated with respect to dynamic mechanical properties and safety-related performance attributes, and the results of these evaluations were previously reported in "Part 1: Mechanical Properties" of this publication. This current paper presents safety-related performance results for these novel materials obtained by employing a complementary experimental methodology, which involved the analysis of separator impedance characteristics as a function of temperature. The experimental results from this study are discussed with respect to potential cell safety enhancement for future aerospace as well as for terrestrial energy storage needs, and they are compared with pertinent mechanical properties of these materials, as well as with current state-of-the practice separator materials.

  2. Performance of the e2v 1.2 GPix cryogenic camera for the J-PAS 2.5m survey telescope

    NASA Astrophysics Data System (ADS)

    Robbins, M. S.; Bastable, M.; Bates, A.; Dryer, M.; Eames, S.; Fenemore-Jones, G.; Haddow, G.; Jorden, P. R.; Lane, B.; Marin-Franch, A.; Mortimer, J.; Palmer, I.; Puttay, N.; Renshaw, R.; Smith, M.; Taylor, K.; Tearle, J.; Weston, P.; Wheeler, P.; Worley, J.

    2016-08-01

    The J-PAS project will perform a five-year survey of the northern sky from a new 2.5m telescope in Teruel, Spain. In this paper the build and factory testing of the commercially supplied cryogenic camera is described. The 1.2 Giga-pixel focal plane is contained within a novel liquid-nitrogen cooled vacuum cryostat, which maintains the flatness for the cooled, 0.45m diameter focal plane to better than 27 μm peak to valley. The cooling system controls the focal plane to a temperature of -100°C with a variation across the focal plane of better than 2.5oC and a stability of better than +/- 0.5 °C over the long periods of operation required. The proximity drive electronics achieves total system level noise performance better than 5 e- from the 224-channel CCD system.

  3. Bumblebee Program: Aerodynamic data. Part 4: Wing loads at Mach numbers 1.5 and 2.0. [missile configurations

    NASA Technical Reports Server (NTRS)

    Barnes, G. A.; Cronvich, L. L.

    1979-01-01

    Individual wing panel aerodynamic characteristics are provided for rectangular wings with aspect ratios of 0.25, 0.75, and 1.00 each panel at Mach numbers if 1.5 and 2.0 for angles of attack to 23 degrees. Data plots produced from reports of wind tunnel tests show normal force coefficients, and the spanwise and chordwise center of pressure locations.

  4. Performance Characteristics of Flush and Shielded Auxiliary Exits at Mach Numbers of 1.5 to 2.0

    NASA Technical Reports Server (NTRS)

    Abdalla, Kaleel L.

    1959-01-01

    The performance characteristics of several flush and shielded auxiliary exits were investigated at Mach numbers of 1.5 to 2.0, and jet pressure ratios from jet off to 10. The results indicate that the shielded configurations produced better overall performance than the corresponding flush exits over the Mach-number and pressure-ratio ranges investigated. Furthermore, the full-length shielded exit was highest in performance of all the configurations. The flat-exit nozzle block provided considerably improved performance compared with the curved-exit nozzle block.

  5. Flexible Nb2O5 nanowires/graphene film electrode for high-performance hybrid Li-ion supercapacitors

    NASA Astrophysics Data System (ADS)

    Song, Hao; Fu, Jijiang; Ding, Kang; Huang, Chao; Wu, Kai; Zhang, Xuming; Gao, Biao; Huo, Kaifu; Peng, Xiang; Chu, Paul K.

    2016-10-01

    The hybrid Li-ion electrochemical supercapacitor (Li-HSC) combining the battery-like anode with capacitive cathode is a promising energy storage device boasting large energy and power densities. Orthorhombic Nb2O5 is a good anode material in Li-HSCs because of its large pseudocapacitive Li-ion intercalation capacity. Herein, we report a high-performance, binder-free and flexible anode consisting of long Nb2O5 nanowires and graphene (L-Nb2O5 NWs/rGO). The paper-like L-Nb2O5 NWs/rGO film electrode has a large mass loading of Nb2O5 of 93.5 wt% as well as short solid-state ion diffusion length, and enhanced conductivity (5.1 S cm-1). The hybrid L-Nb2O5 NWs/rGO paper electrode shows a high reversible specific capacity of 160 mA h g-1 at a current density of 0.2 A g-1, superior rate capability with capacitance retention of 60% when the current density increases from 0.2 to 5 A g-1, as well as excellent cycle stability. The Li-HSC device based on the L-Nb2O5/rGO anode and the cathode of biomass-derived carbon nanosheets delivers an energy density of 106 Wh kg-1 at 580 W kg-1 and 32 Wh kg-1 at a large power density of 14 kW kg-1. Moreover, the Li-HSC device exhibits excellent cycling performance without obvious capacitance decay after 1000 cycles.

  6. LGBTQ Part 2.

    PubMed

    Perron, Tracy; Kartoz, Connie; Himelfarb, Chaya

    2017-03-01

    In addition to dealing with the normal challenges of being a teenager, many times LGBTQ youth have to deal with harassment, intimidation, and bullying on a daily basis as they disproportionately experience verbal and physical harassment while in school as a result of their sexual orientation and/or gender identity. This violence adversely affects these students' health and well-being as reflected in the depression and suicide rate among LGBTQ youth. As Part 2 of a series in articles on caring for LGBTQ youth in a school setting, this article reviews specific health risks in this group of students. School nurses can help reduce disparities in health for LGBTQ youth by understanding risk for psychological consequences of bullying and advocating for a just and responsive social school culture. Implications for school nurses include educating school staff and families as well as providing prompt and appropriate referrals for necessary psychological care.

  7. Performance specifications for health physics instrumentation: portable instrumentation for use in normal work environments. Part 2. Test results

    SciTech Connect

    Kenoyer, J.L.; Swinth, K.L.; Stoetzel, G.A.; Selby, J.M.

    1986-09-01

    The Pacific Northwest Laboratory evaluated a draft American National Standards Institute Standard N42.17 (ANSI N42.17) on performance specifications for health physics instrumentation through a project jointly funded by the US Department of Energy and the US Nuclear Regulatory Commission. The evaluation involved testing a representative cross section of instruments against criteria in the standard. This report presents results of the testing program. A brief history of the project is included in the introduction. The instrumentation tested is described in general terms (i.e., types, ranges); however, no direct relationship between the results and a specific instrument model is made in this report. Testing requirements in ANSI N42.17D4, Revision 1 (May 1985) are summarized and the methods by which the tests are performed are discussed. Brief descriptions of the testing equipment are included in the methods section of the report. More detailed information about the draft standard, testing requirements and procedures, and the test equipment is included in ''Performance Specifications for Health Physics Instrumentation - Portable Instrumentation for Use in Normal Work Environments, Part 1: Manual of Testing Procedures.'' Results of testing are given in two formats: test-by-test and instrument-by-instrument. Discussion is included on significant and interesting findings, on comparisons of results from the same type of instruments from same and different manufacturers, and on data grouped by manufacturer. Conclusions are made on the applicability and practicality of the proposed standard and on instrument performance. Changes that have been made to the proposed standard based on findings of the testing program are listed and discussed. 22 refs., 11 figs., 77 tabs.

  8. 44 CFR Appendix A(5) to Part 61 - Appendix A(5) to Part 61

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 44 Emergency Management and Assistance 1 2013-10-01 2013-10-01 false Appendix A(5) to Part 61 A(5) Appendix A(5) to Part 61 Emergency Management and Assistance FEDERAL EMERGENCY MANAGEMENT AGENCY... COVERAGE AND RATES Pt. 61, App. A(5) Appendix A(5) to Part 61 Federal Emergency Management Agency,...

  9. 49 CFR Appendix A to Part 5 - Appendix A to Part 5

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 1 2013-10-01 2013-10-01 false Appendix A to Part 5 A Appendix A to Part 5 Transportation Office of the Secretary of Transportation RULEMAKING PROCEDURES Pt. 5, App. A Appendix A to Part 5 Pursuant to § 5.1(b), the following officials of the Office of the Secretary of Transportation...

  10. 44 CFR Appendix A(5) to Part 61 - Appendix A(5) to Part 61

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 44 Emergency Management and Assistance 1 2010-10-01 2010-10-01 false Appendix A(5) to Part 61 A(5) Appendix A(5) to Part 61 Emergency Management and Assistance FEDERAL EMERGENCY MANAGEMENT AGENCY... COVERAGE AND RATES Pt. 61, App. A(5) Appendix A(5) to Part 61 Federal Emergency Management Agency,...

  11. 3-Cyano-6-(5-methyl-3-pyrazoloamino) pyridines (Part 2): A dual inhibitor of Aurora kinase and tubulin polymerization.

    PubMed

    Morioka, Masahiko

    2016-12-15

    A new class of a dual inhibitor of Aurora kinase and tubulin polymerization was created by introducing various substituted phenoxyethylamino or pyridyloxyethylamino groups to the 2-position of 3-cyano-4-methyl-6-(5-methyl-3-pyrazoloamino)-pyridine. Compound 3g exhibited Aurora kinase inhibition, excellent protein kinase selectivity to Aurora kinase in comparison with 66 other kinases, inhibition of phosphorylation of Ser10 of histone H3 as an Aurora kinase inhibitor, inhibition of tubulin polymerization in vitro, good cell membrane permeability, and a good PK profile. Therefore compound 3g was effective in some antitumor mouse models at a dose of 30mg/kgpoqd.

  12. Fractional Diffusion Analysis of the Electromagnetic Field In Fractured Media Part II: 2.5-D Approach

    NASA Astrophysics Data System (ADS)

    Ge, J.; Everett, M. E.; Weiss, C. J.

    2012-12-01

    A 2.5D finite difference (FD) frequency-domain modeling algorithm based on the theory of fractional diffusion of electromagnetic (EM) fields generated by a loop source lying above a fractured geological medium is addressed in this paper. The presence of fractures in the subsurface, usually containing highly conductive pore fluids, gives rise to spatially hierarchical flow paths of induced EM eddy currents. The diffusion of EM eddy currents in such formations is anomalous, generalizing the classical Gaussian process described by the conventional Maxwell equations. Based on the continuous time random walk (CTRW) theory, the diffusion of EM eddy currents in a rough medium is governed by the fractional Maxwell equations. Here, we model the EM response of a 2D subsurface containing fractured zones, with a 3D loop source, which results the so-called 2.5D model geometry. The governing equation in the frequency domain is converted using Fourier transform into k domain along the strike direction (along which the model conductivity doesn't vary). The resulting equation system is solved by the multifrontal massively parallel solver (MUMPS). The data obtained is then converted back to spatial domain and the time domain. We find excellent agreement between the FD and analytic solutions for a rough halfspace model. Then FD solutions are calculated for a 2D fault zone model with variable conductivity and roughness. We compare the results with responses from several classical models and explore the relationship between the roughness and the spatial density of the fracture distribution.

  13. Effect of SO2 on the performance of Ag-Pd/Al2O3 for the selective catalytic reduction of NOx with C2H5OH.

    PubMed

    Xie, Shu-xia; Yu, Yun-bo; Wang, Jin; He, Hong

    2006-01-01

    The influence of SO2 on the performance of Ag-Pd/Al2O3 for the selective catalytic reduction (SCR) of NOx with C2H5OH was investigated experimentally. The activity test results suggest that Ag-Pd/Al203 shows a small activity loss in the presence of SO2 when using C2H5OH as a reductant. In situ DRIFTS spectra show that the activity loss originates from the formation of surface sulphate species on the Ag-Pd/Al2O3. The surface sulphate species formation inhibits the formation of nitrate, whereas hardly changes the partial oxidation of C2HsOH. Compared with the NOx reduction by C3H6 an obvious suppression of the surface sulphate species formation was observed by DRIFTS experiment when using C2H50H as a reductant. This phenomenon reveals the better catalytic performance and strong SO2 tolerance of Ag-Pd/Al2O3-C2H5OH system.

  14. Nuclear Computerized Library for Assessing Reactor Reliability (NUCLARR): Data manual. Part 2: Human error probability (HEP) data; Volume 5, Revision 4

    SciTech Connect

    Reece, W.J.; Gilbert, B.G.; Richards, R.E.

    1994-09-01

    This data manual contains a hard copy of the information in the Nuclear Computerized Library for Assessing Reactor Reliability (NUCLARR) Version 3.5 database, which is sponsored by the US Nuclear Regulatory Commission. NUCLARR was designed as a tool for risk analysis. Many of the nuclear reactors in the US and several outside the US are represented in the NUCLARR database. NUCLARR includes both human error probability estimates for workers at the plants and hardware failure data for nuclear reactor equipment. Aggregations of these data yield valuable reliability estimates for probabilistic risk assessments and human reliability analyses. The data manual is organized to permit manual searches of the information if the computerized version is not available. Originally, the manual was published in three parts. In this revision the introductory material located in the original Part 1 has been incorporated into the text of Parts 2 and 3. The user can now find introductory material either in the original Part 1, or in Parts 2 and 3 as revised. Part 2 contains the human error probability data, and Part 3, the hardware component reliability data.

  15. An impurity intermediate band due to Pb doping induced promising thermoelectric performance of Ca5In2Sb6.

    PubMed

    Feng, Zhenzhen; Wang, Yuanxu; Yan, Yuli; Zhang, Guangbiao; Yang, Jueming; Zhang, Jihua; Wang, Chao

    2015-06-21

    Band engineering is one of the effective approaches for designing ideal thermoelectric materials. Introducing an intermediate band in the band gap of semiconducting thermoelectric compounds may largely increase the carrier concentration and improve the electrical conductivity of these compounds. We test this hypothesis by Pb doping in Zintl Ca5In2Sb6. In the current work, we have systematically investigated the electronic structure and thermoelectric performances of substitutional doping with Pb on In sites at a doping level of 5% (0.2 e per cell) for Ca5In2Sb6 by using density functional theory combined with semi-classical Boltzmann theory. It is found that in contrast to Zn doping, Pb doping introduces a partially filled intermediate band in the band gap of Ca5In2Sb6, which originates from the Pb s states by weakly hybridizing with the Sb p states. Such an intermediate band dramatically increases the electrical conductivity of Ca5In2Sb6 and has little detrimental effect on its Seebeck coefficient, which may increase its thermoelectric figure of merit, ZT. Interestingly, a maximum ZT value of 2.46 may be achieved at 900 K for crystalline Pb-doped Ca5In2Sb6 when the carrier concentration is optimized. Therefore, Pb-doped Ca5In2Sb6 may be a promising thermoelectric material.

  16. PERFORMANCE AUDITING OF A HUMAN AIR POLLUTION EXPOSURE CHAMBER FOR PM2.5

    EPA Science Inventory

    Databases derived from human health effects research play a vital role in setting environmental standards. An underlying assumption in using these databases for standard setting purposes is that they are of adequate quality. The performance auditing program described provides n...

  17. ORNL Drawing Q-6240-2 (Rev. 3) and Parts List Q-6240-5 (Engineering Materials)

    SciTech Connect

    Kryter, R.C.

    1989-06-22

    Copies of ORNL Drawing Q-6240-2 (Rev. 3), along with related drawings and fabrication information, were provided by me to Sammie C. Harris of the Office of Technology Applications on December 20, 1988 for his distributions to companies that have established formal licensing agreements with MMES for commercial use of Motor Current Signature Analysis (MCSA) technology developed at ORNL. This printed circuit board layout was provided to Mr. Harris in four forms: as a blueprint, a full-size negative transparency, a full-size positive transparency, and as a machine readable file on 5.25-inch flexible disk. The flexible disk, which Archer Haskins now wishes to clear for outside'' distribution, contains no ASCII text but rather a single data file (filename-Q6240-2.DRA) which can be input to a P870 printed circuit board (pcb) layout computer program to regenerate the original drawing (or a modified version thereof) in hardcopy form suitable for pcb manufacture.

  18. Regionalized PM2.5 Community Multiscale Air Quality model performance evaluation across a continuous spatiotemporal domain

    NASA Astrophysics Data System (ADS)

    Reyes, Jeanette M.; Xu, Yadong; Vizuete, William; Serre, Marc L.

    2017-01-01

    The regulatory Community Multiscale Air Quality (CMAQ) model is a means to understanding the sources, concentrations and regulatory attainment of air pollutants within a model's domain. Substantial resources are allocated to the evaluation of model performance. The Regionalized Air quality Model Performance (RAMP) method introduced here explores novel ways of visualizing and evaluating CMAQ model performance and errors for daily Particulate Matter ≤ 2.5 μm (PM2.5) concentrations across the continental United States. The RAMP method performs a non-homogenous, non-linear, non-homoscedastic model performance evaluation at each CMAQ grid. This work demonstrates that CMAQ model performance, for a well-documented 2001 regulatory episode, is non-homogeneous across space/time. The RAMP correction of systematic errors outperforms other model evaluation methods as demonstrated by a 22.1% reduction in Mean Square Error compared to a constant domain wide correction. The RAMP method is able to accurately reproduce simulated performance with a correlation of r = 76.1%. Most of the error coming from CMAQ is random error with only a minority of error being systematic. Areas of high systematic error are collocated with areas of high random error, implying both error types originate from similar sources. Therefore, addressing underlying causes of systematic error will have the added benefit of also addressing underlying causes of random error.

  19. Hubble Space Telescope Star Tracker ad Two-Gyro Control Law Design, Implementation, and On-Orbit Performance. Part 2

    NASA Technical Reports Server (NTRS)

    VanArsdall, John C.

    2005-01-01

    The Hubble Space Telescope (HST) normally requires three gyroscopes for three-axis rate control. The loss of the Space Shuttle Columbia on STS-107 resulted in the cancellation of a shuttle-based HST Servicing Mission 4. Therefore, HST must operate using the on-board hardware until an alternate means of servicing can be accomplished. The probability of gyro failure indicates that fewer than three gyros will be operable before any servicing mission can be performe& To mitigate this, and to extend the HST life expectancy, a rate estimation and control algorithm was developed that requires two gyros to measure rate about two axes, with the remaining axis rate estimated using one of three alternate sensors. Three-axis magnetometers (MSS) are used for coarse rate estimation during large maneuvers and during occultations of other sensors. Fixed-Head Star Trackers (FHSTs) are used for rate estimation during safe mode recovery and during transition to science operations. Fine rate estimation during science operations is performed using the Fine Guidance Sensors (FGSs). The FHST mode (T2G) relies on star vectors as measured by the FHSTs to estimate vehicle rate about the axis not measured by the gyros. Since the FHSTs were not designed to estimate body rate, this method involves a unique set of problems that had to be overcome in the final design, such as the effect of FHST break tracks and moving targets on rate estimation. The solutions to these problems, as well as a detailed description of the design and implementation of the rate estimation are presented Also included are the time domain and frequency domain analysis of the T2G control law. A high fidelity HST simulator (HSTSIM) was used to verify T2G performance prior to on-orbit use. Results of these simulations are also presented. Finally, analysis of actual T2G on-orbit test results is presented for design validation.

  20. 7. SITE OVERVIEW. PART 2 OF 6 PART PANORAMA WITH ...

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

    7. SITE OVERVIEW. PART 2 OF 6 PART PANORAMA WITH NOS. CA-265-6 TO CA-265-11. ARROYO SECO PARKWAY AS SEEN FROM RADIO TOWER HILL. PART 2 SHOWS GRAND VIEW POINT AT LEFT REAR AND FIGUEROA VIADUCT OVERCROSSING; INTERSTATE 1-5 AT REAR CENTER; AVENUE 26 BRIDGE AT RIGHT CENTER. LOOKING 260° W. - Arroyo Seco Parkway, Los Angeles to Pasadena, Los Angeles, Los Angeles County, CA

  1. PERFORMANCE AUDITING OF A HUMAN AIR POLLUTION EXPOSURE SYSTEM FOR PM2.5

    EPA Science Inventory

    Databases derived from human health effects research play a vital role in setting environmental standards. An underlying assumption in using these databases for standard setting purposes is that they are of adequate quality. The performance auditing program described in this ma...

  2. Synthesis, Structure, and Electrochemical Performance of High Capacity Li2Cu0.5Ni0.5O2 Cathodes

    DOE PAGES

    Ruther, Rose E; Zhou, Hui; Dhital, Chetan; ...

    2015-09-08

    Orthorhombic Li2NiO2, Li2CuO2, and solid solutions thereof have been studied as potential cathode materials for lithium-ion batteries due to their high theoretical capacity and relatively low cost. While neither endmember shows good cycling stability, the intermediate composition, Li2Cu0.5Ni0.5O2, yields reasonably high reversible capacities. A new synthetic approach and detailed characterization of this phase and the parent Li2CuO2 are presented. The cycle life of Li2Cu0.5Ni0.5O2 is shown to depend critically on the voltage window. The formation of Cu1+ at low voltage and oxygen evolution at high voltage limit the electrochemical reversibility. In situ X-ray absorption spectroscopy (XAS), in situ Raman spectroscopy,more » and gas evolution measurements are used to follow the chemical and structural changes that occur as a function of cell voltage.« less

  3. Preliminary Axial Flow Turbine Design and Off-Design Performance Analysis Methods for Rotary Wing Aircraft Engines. Part 2; Applications

    NASA Technical Reports Server (NTRS)

    Chen, Shu-cheng, S.

    2009-01-01

    In this paper, preliminary studies on two turbine engine applications relevant to the tilt-rotor rotary wing aircraft are performed. The first case-study is the application of variable pitch turbine for the turbine performance improvement when operating at a substantially lower shaft speed. The calculations are made on the 75 percent speed and the 50 percent speed of operations. Our results indicate that with the use of the variable pitch turbines, a nominal (3 percent (probable) to 5 percent (hypothetical)) efficiency improvement at the 75 percent speed, and a notable (6 percent (probable) to 12 percent (hypothetical)) efficiency improvement at the 50 percent speed, without sacrificing the turbine power productions, are achievable if the technical difficulty of turning the turbine vanes and blades can be circumvented. The second casestudy is the contingency turbine power generation for the tilt-rotor aircraft in the One Engine Inoperative (OEI) scenario. For this study, calculations are performed on two promising methods: throttle push and steam injection. By isolating the power turbine and limiting its air mass flow rate to be no more than the air flow intake of the take-off operation, while increasing the turbine inlet total temperature (simulating the throttle push) or increasing the air-steam mixture flow rate (simulating the steam injection condition), our results show that an amount of 30 to 45 percent extra power, to the nominal take-off power, can be generated by either of the two methods. The methods of approach, the results, and discussions of these studies are presented in this paper.

  4. Development of remote sensing technology in New Zealand, part 1. Seismotectonic, structural, volcanologic and geomorphic study of New Zealand, part 2. Indigenous forest assessment, part 3. Mapping land use and environmental studies in New Zealand, part 4. New Zealand forest service LANDSAT projects, part 5. Vegetation map and landform map of Aupouri Peninsula, Northland, part 6. Geographical applications of LANDSAT mapping, part 7

    NASA Technical Reports Server (NTRS)

    Probine, M. C.; Suggate, R. P.; Mcgreevy, M. G.; Stirling, I. F. (Principal Investigator)

    1977-01-01

    The author has identified the following significant results. Inspection of pixels obtained from LANDSAT of New Zealand revealed that not only can ships and their wakes be detected, but that information on the size, state of motion, and direction of movement was inferred by calculating the total number of pixels occupied by the vessel and wake, the orientation of these pixels, and the sum of their radiance values above the background level. Computer enhanced images showing the Waimihia State Forest and much of Kaingaroa State Forest on 22 December 1975 were examined. Most major forest categories were distinguished on LANDSAT imagery. However, the LANDSAT imagery seemed to be most useful for updating and checking existing forest maps, rather than making new maps with many forest categories. Snow studies were performed using two basins: Six Mile Creek and Mt. Robert. The differences in radiance levels indicated that a greater areal snow cover in Six Mile Creek Basin with the effect of lower radiance values from vegetation/snow regions. A comparison of the two visible bands (MSS 4 and 5) demonstrate this difference for the two basins.

  5. Performance of an HRP-2 rapid diagnostic test in Nigerian children less than 5 years of age.

    PubMed

    Ajumobi, Olufemi; Sabitu, Kabir; Nguku, Patrick; Kwaga, Jacob; Ntadom, Godwin; Gitta, Sheba; Elizeus, Rutebemberwa; Oyibo, Wellington; Nsubuga, Peter; Maire, Mark; Poggensee, Gabriele

    2015-04-01

    The diagnostic performance of histidine-rich protein 2 (HRP-2)-based malaria rapid diagnostic test (RDT) was evaluated in a mesoendemic area for malaria, Kaduna, Nigeria. We compared RDT results with expert microscopy results of blood samples from 295 febrile children under 5 years. Overall, 11.9% (35/295) tested positive with RDT compared with 10.5% (31/295) by microscopy: sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) were 100%, 98.5%, 88.6%, and 100%, respectively. The RDT sensitivity was not affected by transmission season, parasite density, and age. Specificity and positive PV decreased slightly during the high-transmission season (97.5% and 83.3%). The RDT test positivity rates in the low- and high-transmission seasons were 9.4% and 13.5%, respectively. Overall, the test performance of this RDT was satisfactory. The findings of a low proportion of RDT false positives, no invalid and no false-negative results should validate the performance of RDTs in this context.

  6. 40 CFR Appendix N to Part 50 - Interpretation of the National Ambient Air Quality Standards for PM2.5

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ...-specific chemical speciation profiles confirming all major component concentration averages to be within 10... approval of EPA. Annual 98th percentile values are to be calculated according to equation 5 in section 4.5... determining whether to use such data. (d) The equations for calculating the annual standard design values...

  7. Structural Performance of Cylindrical Pressure Housings of Different Ceramic Compositions Under External Pressure Loading. Part 2. Zirconia Toughened Alumina Ceramic

    DTIC Science & Technology

    1993-12-01

    testing. Test assem- teristics of the two material compositions were bly I used Mod 1, Type 2, end-cap joint rings epoxy I 5 I FEATURED RESEARCH I bonded... metal joint during assembly. The weight of the acceptable for tests with short submersion times. 12-inch-OD ZTA cylinder with titanium Mod 1, The...pres- between ZTA and the metallic joint ring is less than sures of the three test configurations of the ZTA occurs with the relatively stiffer AL-600

  8. Template-free synthesis of highly porous V2O5 cuboids with enhanced performance for lithium ion batteries

    NASA Astrophysics Data System (ADS)

    Zhang, Cheng; Fang, Guozhao; Liang, Caiwu; Zhou, Jiang; Tan, Xiaoping; Pan, Anqiang; Liang, Shuquan

    2016-07-01

    Highly porous hierarchical V2O5 cuboids have been synthesized by a template-free PVP-assisted polyxol method and the formation mechanism is studied. The cuboids are assembled from numerous mesoporous nanoplates and the preferred orientation of each single nanoplate exposes the <110> facets, facilitating lithium-ion diffusion by offering a prior channel. This material exhibits a high capacity of 143 mA h g-1, high rate capacity of 10 C and long life cycling performance up to 1000 cycles. The excellent electrochemical performance of V2O5 cuboid electrodes is due to its unique porous cuboid morphology and optimized structural stability upon cycling. This research provides an effective route to the construction of complex porous architectures assembled from nanocrystals through a surfactant-assisted synthesis method.

  9. Just Perfect, Part 2

    ERIC Educational Resources Information Center

    Scott, Paul

    2007-01-01

    In "Just Perfect: Part 1," the author defined a perfect number N to be one for which the sum of the divisors d (1 less than or equal to d less than N) is N. He gave the first few perfect numbers, starting with those known by the early Greeks. In this article, the author provides an extended list of perfect numbers, with some comments about their…

  10. Comparative performance tests on the Mod-2, 2.5-mW wind turbine with and without vortex generators

    NASA Technical Reports Server (NTRS)

    Miller, G. E.

    1995-01-01

    A test program was conducted on the third Mod-2 unit at Goldendale, Washington, to systematically study the effect of vortex generators (VG's) on power performance. The subject unit was first tested without VG's to obtain baseline data. Vortex generators were then installed on the mid-blade assemblies, and the resulting 70% VG configuration was tested. Finally, vortex generators were mounted on the tip assemblies, and data was recorded for the 100% VG configuration. This test program and its results are discussed in this paper. The development of vortex generators is also presented.

  11. Higher thermoelectric performance of Zintl phases (Eu0.5Yb0.5)1-xCaxMg2Bi2 by band engineering and strain fluctuation

    NASA Astrophysics Data System (ADS)

    Shuai, Jing; Geng, Huiyuan; Lan, Yucheng; Zhu, Zhuan; Wang, Chao; Liu, Zihang; Bao, Jiming; Chu, Ching-Wu; Sui, Jiehe; Ren, Zhifeng

    2016-07-01

    Complex Zintl phases, especially antimony (Sb)-based YbZn0.4Cd1.6Sb2 with figure-of-merit (ZT) of ˜1.2 at 700 K, are good candidates as thermoelectric materials because of their intrinsic “electron-crystal, phonon-glass” nature. Here, we report the rarely studied p-type bismuth (Bi)-based Zintl phases (Ca,Yb,Eu)Mg2Bi2 with a record thermoelectric performance. Phase-pure EuMg2Bi2 is successfully prepared with suppressed bipolar effect to reach ZT ˜ 1. Further partial substitution of Eu by Ca and Yb enhanced ZT to ˜1.3 for Eu0.2Yb0.2Ca0.6Mg2Bi2 at 873 K. Density-functional theory (DFT) simulation indicates the alloying has no effect on the valence band, but does affect the conduction band. Such band engineering results in good p-type thermoelectric properties with high carrier mobility. Using transmission electron microscopy, various types of strains are observed and are believed to be due to atomic mass and size fluctuations. Point defects, strain, dislocations, and nanostructures jointly contribute to phonon scattering, confirmed by the semiclassical theoretical calculations based on a modified Debye-Callaway model of lattice thermal conductivity. This work indicates Bi-based (Ca,Yb,Eu)Mg2Bi2 is better than the Sb-based Zintl phases.

  12. Cu doped V2O5 flowers as cathode material for high-performance lithium ion batteries.

    PubMed

    Yu, Hong; Rui, Xianhong; Tan, Huiteng; Chen, Jing; Huang, Xin; Xu, Chen; Liu, Weiling; Yu, Denis Y W; Hng, Huey Hoon; Hoster, Harry E; Yan, Qingyu

    2013-06-07

    Hierarchical Cu doped vanadium pentoxide (V2O5) flowers were prepared via a simple hydrothermal approach followed by an annealing process. The flower precursors are self-assembled with 1D nanobelts surrounding a central core. The morphological evolution is investigated and a plausible mechanism is proposed. As the cathode material for lithium ion batteries, the Cu doped V2O5 samples exhibit improved electrochemical performance compared to the un-doped ones. Among them Cu0.02V1.98O5 delivered higher reversible specific capacities, better cycling stabilities and excellent rate capabilities, e.g. 97 mA h g(-1) at 20.0 C.

  13. Deployment and Performance Characteristics of 5-Foot Diameter (1.5m) Attached Inflatable Decelerators from Mach Numbers 2.2-4.4

    NASA Technical Reports Server (NTRS)

    Bohon, Herman L.; Miserentino, Robert

    1970-01-01

    Deployment characteristics and steady-state performance data were obtained over the Mach number range from 2.2 to 4.4 and at angles of attack from 0 degrees to l0 degrees. All attached inflatable decelerator (AID) models deployed successfully and exhibited flutter-free performance after deployment. Shock loads commonly associated with inflation of parachutes during deployment were not experienced. Force and moment data and ram-air pressure data were obtained throughout the Mach number range and at angles of attack from 0 degrees to l0 degrees. The high drag coefficient of 1.14 was in good agreement with the value predicted by the theory used in the design and indicated other AID shapes may be designed on a rational basis with a high degree of confidence.

  14. Final report for the high performance commodity interconnects for clustered scientific and engineering computing. Part 2 of 3

    SciTech Connect

    Tarman, T.D.; Hu, T.C.; Stans, L.

    1999-12-01

    A variety of VIA network models was developed in this project. For model validation, small network models were constructed using the network model editor GUI. These small models allowed node model functions to be tested and debugged. As the node models neared completion, small networks of actual VIA hardware were constructed in the lab, and the same networks were constructed in OPNET. Simulation results for these networks were compared against the measured performance metrics in the laboratory to determine the degree to which the simulation model agreed with the actual network results. Once validation was completed, the EMA feature was used to construct a large VIA network. This network represented a cluster of 1024 nodes. In this cluster, 4 nodes were connected to each switch, and the switches were arranged in a 16x16, 2-D torus configuration. Therefore, each switch had one connection to each of its four neighbors. Furthermore, the routing tables of each switch were populated so that each of its nodes communicated to its corresponding node four hops away.

  15. Pondering placentophagy. Part 2.

    PubMed

    Wickham, Sara

    2015-11-01

    A recent systematic review, which looked at whether there are any benefits to placentophagy--the consumption of one's placenta after birth--has concluded that there is no evidence of benefit or risk and that these require further investigation. In the first part of this article, I reflected on this practice and noted some of the difficulties in evaluating such a practice. In this second article, I ask whether the claim that this is an age-old or natural practice is useful, consider why this might be important for women and explore some of the issues that we might want to consider in relation to this and other practices for which we have no evidence.

  16. RF Breakdown Prevention, Part 2 Product Overview

    DTIC Science & Technology

    2015-05-07

    RF Breakdown Prevention, Part 2 Product Overview May 7, 2015 Preston T. Partridge Antenna Systems Department Communication Systems Implementation...REPORT TYPE Final 3. DATES COVERED - 4. TITLE AND SUBTITLE RF Breakdown Prevention, Part 2 Product Overview 5a. CONTRACT NUMBER FA8802-14-C...5 - 7, 2015 RF Breakdown Prevention, Part 2 James Farrell, Boeing Satellite Systems Dr. Jeffrey P. Tate, Raytheon Space and Airborne Systems Preston

  17. Regional climate of the subtropical central Andes using high-resolution CMIP5 models—part I: past performance (1980-2005)

    NASA Astrophysics Data System (ADS)

    Zazulie, Natalia; Rusticucci, Matilde; Raga, Graciela B.

    2017-02-01

    This study assesses the performance of 15 high resolution global climate models (GCMs) over the complex orographic region of the subtropical central Andes from available simulations of the Fifth Coupled Model Intercomparison Project (CMIP5). The simulated past climate (1980-2005) was compared against the Climate Research Unit (CRU) dataset and the ERA-Interim reanalysis, considered as reference datasets, to evaluate regional and seasonal surface temperature and precipitation, as well as sea level pressure and circulation. A good agreement was found between the simulations and the reference datasets for winter precipitation and for temperature over both seasons. Whilst all models correctly reproduce the annual cycle of precipitation, some of them overestimate winter totals. ERA-Interim does not adequately represent summer precipitation over the region, and some of the models analyzed also show the same deficiency. All models correctly reproduce the northward migration of the South Pacific subtropical high during winter, although some of them underestimate the maximum central pressure. During summer, most models fail to show the low level north-south flow parallel to the eastern foothills of the Andes, a feature known as the Low Level Jet. Further analysis of the results of the simulations led to the selection of a sub-set of five CMIP5 GCMs to construct a reduced ensemble. This reduced ensemble is a better representation than the multi-model mean of the 15 GCMs of the past climate at this region and would be recommended for future studies.

  18. Neurofibromatosis: part 2--clinical management.

    PubMed

    Batista, Pollyanna Barros; Bertollo, Eny Maria Goloni; Costa, Danielle de Souza; Eliam, Lucas; Cunha, Karin Soares Gonçalves; Cunha-Melo, José Renan; Darrigo Junior, Luiz Guilherme; Geller, Mauro; Gianordoli-Nascimento, Ingrid Faria; Madeira, Luciana Gonçalves; Mendes, Hérika Martins; Miranda, Débora Marques de; Mata-Machado, Nikolas Andre; Morato, Eric Grossi; Pavarino, Érika Cristina; Pereira, Luciana Baptista; Rezende, Nilton Alves de; Rodrigues, Luíza de Oliveira; Sette, Jorge Bezerra Cavalcanti

    2015-06-01

    Part 1 of this guideline addressed the differential diagnosis of the neurofibromatoses (NF): neurofibromatosis type 1 (NF1), neurofibromatosis type 2 (NF2) and schwannomatosis (SCH). NF shares some features such as the genetic origin of the neural tumors and cutaneous manifestations, and affects nearly 80 thousand Brazilians. Increasing scientific knowledge on NF has allowed better clinical management and reduced rate of complications and morbidity, resulting in higher quality of life for NF patients. Most medical doctors are able to perform NF diagnosis, but the wide range of clinical manifestations and the inability to predict the onset or severity of new features, consequences, or complications make NF management a real clinical challenge, requiring the support of different specialists for proper treatment and genetic counseling, especially in NF2 and SCH. The present text suggests guidelines for the clinical management of NF, with emphasis on NF1.

  19. Condom testing: part 2.

    PubMed

    Kestelman, P

    1974-01-01

    Various government standards required for testing condoms to be sold are described. A minimum tensile strength of 200 kg/sq cm and a minimum elongation at breaking of 600 to 700% are required by some countries. Bursting volume by U.S. standards is over 1 cubic foot before and after aging. To test for holes condoms are filled with water and rolled on absorbent paper. Mean thickness by U.S. standards must be between .004 and .002 cm with no reading exceeding .009 cm. The weight of each of 20 condoms per batch must not exceed 1.7 gm. A minimum length of 16 cm is required. Minimum width standards vary from 4.4 cm to 4.9 cm and maximum from 5.4 to 5.6 cm. Dates of manufacture and time of expiration of guarantee are required by some countries. Instructions for use may be required. No laboratory test has been devised to predict the chance of a condom bursting in practice. Faulty handling or lubication may be the cause. A supplementary spermicide would reduce the risk of pregnanc y or of infection should the condom burst.

  20. 2. PART 2 OF 2 PART PANORAMA WITH NO. CA2721. ...

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

    2. PART 2 OF 2 PART PANORAMA WITH NO. CA-272-1. SOUTH SIDE OF VIADUCT. LOOKING WEST/NORTHWEST FROM EAST SIDE OF RIVER. - Glendale-Hyperion Viaduct, Spanning Golden State Freeway (I-5) & Los Angeles River at Glendale Boulevard, Los Angeles, Los Angeles County, CA

  1. Lymphomas-Part 2.

    PubMed

    Brandão, Lara A; Castillo, Mauricio

    2016-11-01

    There are 2 types of central nervous system lymphoma: primary and secondary. Both have variable imaging features making them diagnostic challenges. Furthermore, a patient's immune status significantly alters the imaging findings. Familiarity with typical appearances, variations, and common mimics aids radiologists in appropriately considering lymphoma in the differential diagnosis. Moreover, special types of lymphoma, such as lymphomatosis cerebri, intravascular lymphoma, and lymphomatoid granulomatosis, also are found. This article discusses uncommon types of lymphoma and the differential diagnosis for focal, multifocal, meningeal, and infiltrative lymphomas.

  2. Air pollution and early deaths in the United States. Part II: Attribution of PM2.5 exposure to emissions species, time, location and sector

    NASA Astrophysics Data System (ADS)

    Dedoussi, Irene C.; Barrett, Steven R. H.

    2014-12-01

    Combustion emissions constitute the largest source of anthropogenic emissions in the US, and lead to the degradation of air quality and human health. In Part I we computed the population fine particulate matter (PM2.5) exposure and number of early deaths caused by emissions from six major sectors: electric power generation, industry, commercial and residential activities, road transportation, marine transportation and rail transportation. In Part II we attribute exposure and early deaths to sectors, emissions species, time of emission, and location of emission. We apply a long-term adjoint sensitivity analysis and calculate the four dimensional sensitivities (time and space) of PM2.5 exposure with respect to each emissions species. Epidemiological evidence is used to relate increased population exposure to premature mortalities. This is the first regional application of the adjoint sensitivity analysis method to characterize long-term air pollution exposure. (A global scale application has been undertaken related to intercontinental pollution.) We find that for the electric power generation sector 75% of the attributable PM2.5 exposure is due to SO2 emissions, and 80% of the annual impacts are attributed to emissions from April to September. In the road transportation sector, 29% of PM2.5 exposure is due to NOx emissions and 33% is from ammonia (NH3), which is a result of emissions after-treatment technologies. We estimate that the benefit of reducing NH3 emissions from road transportation is ∼20 times that of NOx per unit mass. 75% of the road transportation ammonia impacts occur during the months October to March. We publicly release the sensitivity matrices computed, noting their potential use as a rapid air quality policy assessment tool.

  3. Enhanced photovoltaic performance of fully flexible dye-sensitized solar cells based on the Nb2O5 coated hierarchical TiO2 nanowire-nanosheet arrays

    NASA Astrophysics Data System (ADS)

    Liu, Wenwu; Hong, Chengxun; Wang, Hui-gang; Zhang, Mei; Guo, Min

    2016-02-01

    Nb2O5 coated hierarchical TiO2 nanowire-sheet arrays photoanode was synthesized on flexible Ti-mesh substrate by using a hydrothermal approach. The effect of TiO2 morphology and Nb2O5 coating layer on the photovoltaic performance of the flexible dye sensitized solar cells (DSSCs) based on Ti-mesh supported nanostructures were systematically investigated. Compared to the TiO2 nanowire arrays (NWAs), hierarchical TiO2 nanowire arrays (HNWAs) with enlarged internal surface area and strong light scattering properties exhibited higher overall conversion efficiency. The introduction of thin Nb2O5 coating layers on the surface of the TiO2 HNWAs played a key role in improving the photovoltaic performance of the flexible DSSC. By separating the TiO2 and electrolyte (I-/I3-), the Nb2O5 energy barrier decreased the electron recombination rate and increased electron collection efficiency and injection efficiency, resulting in improved Jsc and Voc. Furthermore, the influence of Nb2O5 coating amounts on the power conversion efficiency were discussed in detail. The fully flexible DSSC based on Nb2O5 coated TiO2 HNWAs films with a thickness of 14 μm displayed a well photovoltaic property of 4.55% (Jsc = 10.50 mA cm-2, Voc = 0.75 V, FF = 0.58). The performance enhancement of the flexible DSSC is largely attributed to the reduced electron recombination, enlarged internal surface area and superior light scattering ability of the formed hierarchical nanostructures.

  4. Utility FGD Survey, January--December 1989. Volume 2, Design performance data for operating FGD systems, Part 1

    SciTech Connect

    Hance, S.L.; McKibben, R.S.; Jones, F.M.

    1992-03-01

    The Utility flue gas desulfurization (FGD) Survey report, which is generated by a computerized data base management system, represents a survey of operational and planned domestic utility flue gas desulfurization (FGD) systems. It summarizes information contributed by the utility industry, system and equipment suppliers, system designers, research organizations, and regulatory agencies. The data cover system design, fuel characteristics, operating history, and actual system performance. Also included is a unit-by-unit discussion of problems and solutions associated with the boilers, scrubbers, and FGD systems. The development status (operational, under construction, or in the planning stages), system supplier, process, waste disposal practice, and regulatory class are tabulated alphabetically by utility company.

  5. Investigation of the solution initial pH effects on the performance of UV/Fe-ZSM5/H(2)O(2) process.

    PubMed

    Kasiri, M B; Aleboyeh, A; Aleboyeh, H

    2010-01-01

    Effect of the solution initial pH was investigated on the performance of photo-Fenton process using Fe-ZSM5 zeolite as a heterogeneous catalyst for degradation of azo dye Acid Red 14. All experiments were performed in a 1.0 L tubular closed circulation batch photo-reactor. The dye degradation quantum yield was maximal when the solution initial pH was about 5. An amount of about 0.3 mg L(-1) of Fe ions leached out of the zeolite. However, monitoring Fe ion concentration during the experiments showed that the efficiency of the process is not due to the leached Fe ions. The effect of pH on decomposition rate of hydrogen peroxide in different systems such as H(2)O(2) alone, UV/H(2)O(2), UV/Zeolite and UV/Zeolite/H(2)O(2) was explored in detail to explain the results obtained.

  6. Passive femtosecond mode-locking and cw laser performance of Yb3+: Sc2SiO5.

    PubMed

    De Tan, Wei; Tang, Dingyuan; Xu, Xiaodong; Zhang, Jian; Xu, Changwen; Xu, Feng; Zheng, Lihe; Su, Liangbi; Xu, Jun

    2010-08-02

    The authors report on the passive mode-locking and cw lasing performance of Yb3+: Sc(2)SiO(5) (Yb: SSO) in an x-fold cavity end-pumped by a 978 nm single emitter. The laser produced a maximum cw output power of 2.73 W with a slope efficiency of 70%. Passive mode-locking of Yb: SSO was initiated using a semiconductor saturable absorber mirror (SESAM) while dispersion compensation was introduced using a pair of SF10 prisms. The laser mode-locked at 1041 nm, 1060 nm and 1077 nm with near Fourier transformed limited pulse width of 145 fs, 144 fs and 125 fs, and average output power of 40 mW, 52 mW and 102 mW, respectively. To the authors' knowledge, this is the first demonstration of femtosecond mode-locking of Yb: SSO.

  7. The co-effect of Sb and Nb on the SCR performance of the V2O5/TiO2 catalyst.

    PubMed

    Du, Xuesen; Gao, Xiang; Fu, Yincheng; Gao, Feng; Luo, Zhongyang; Cen, Kefa

    2012-02-15

    The effect of the Sb and Nb additives on the V(2)O(5)/TiO(2) catalyst for the selective catalytic reduction (SCR) of NO with NH(3) was investigated. The experimental results show that either Nb or Sb can improve the activity of V(2)O(5)/TiO(2) catalyst. Higher Nb loading led to higher N(2) selectivity. The co-doping of Sb and Nb showed higher improving effect than the single doping of Sb or Nb. The V(2)O(5)/TiO(2) catalyst doped with Sb and Nb had a better H(2)O resistance than the V(2)O(5)/TiO(2) catalyst. The addition of Sb and Nb also enhance the resistance of the V(2)O(5)/TiO(2) catalyst to K(2)O poisoning. The catalysts were characterized by BET, XRD, TEM, and XPS. The results showed that the active components of V, Sb, and Nb were well interacting with each other. The coexistence of Sb and Nb will enhance the redox ability and surface acidity and thus promote the SCR performance.

  8. Effect of Layer Thickness in Selective Laser Melting on Microstructure of Al/5 wt.%Fe2O3 Powder Consolidated Parts

    PubMed Central

    Hao, Liang

    2014-01-01

    In situ reaction was activated in the powder mixture of Al/5 wt.%Fe2O3 by using selective laser melting (SLM) to directly fabricate aluminium metal matrix composite parts. The microstructural characteristics of these in situ consolidated parts through SLM were investigated under the influence of thick powder bed, 75 μm layer thickness, and 50 μm layer thickness in various laser powers and scanning speeds. It was found that the layer thickness has a strong influence on microstructural outcome, mainly attributed to its impact on oxygen content of the matrix. Various microstructural features (such as granular, coralline-like, and particulate appearance) were observed depending on the layer thickness, laser power, and scanning speed. This was associated with various material combinations such as pure Al, Al-Fe intermetallics, and Al(-Fe) oxide phases formed after in situ reaction and laser rapid solidification. Uniformly distributed very fine particles could be consolidated in net-shape Al composite parts by using lower layer thickness, higher laser power, and lower scanning speed. The findings contribute to the new development of advanced net-shape manufacture of Al composites by combining SLM and in situ reaction process. PMID:24526879

  9. Effect of layer thickness in selective laser melting on microstructure of Al/5 wt.%Fe2O3 powder consolidated parts.

    PubMed

    Dadbakhsh, Sasan; Hao, Liang

    2014-01-01

    In situ reaction was activated in the powder mixture of Al/5 wt.%Fe2O3 by using selective laser melting (SLM) to directly fabricate aluminium metal matrix composite parts. The microstructural characteristics of these in situ consolidated parts through SLM were investigated under the influence of thick powder bed, 75  μm layer thickness, and 50  μm layer thickness in various laser powers and scanning speeds. It was found that the layer thickness has a strong influence on microstructural outcome, mainly attributed to its impact on oxygen content of the matrix. Various microstructural features (such as granular, coralline-like, and particulate appearance) were observed depending on the layer thickness, laser power, and scanning speed. This was associated with various material combinations such as pure Al, Al-Fe intermetallics, and Al(-Fe) oxide phases formed after in situ reaction and laser rapid solidification. Uniformly distributed very fine particles could be consolidated in net-shape Al composite parts by using lower layer thickness, higher laser power, and lower scanning speed. The findings contribute to the new development of advanced net-shape manufacture of Al composites by combining SLM and in situ reaction process.

  10. System technology analysis of aeroassisted orbital transfer vehicles. Moderate lift/drag (0.75-1.5): Volume 1A, part 2: Executive summary, phase 2

    NASA Technical Reports Server (NTRS)

    1985-01-01

    Significant achievements and activities of Phase 2 of a study to assess aeroassisted orbit transfer vehicle (AOTV) system technology are summarized. Phase 2 was directed towards identification and prioritization of technology payoffs of representative space based mid lift/drag ratio (L/D) AOTV's and the cryofueled propulsion subsystem - configuration interactions. Enhancing technology areas were identified which could provide substantial transport cost reduction. These include: (1) improved lifetime of storable propellant engines; (2) avionics weight reduction; (3) external thermal protection system weight reduction; (4) decrease of uncertainties in aerodynamic and aerothermodynamic performance; electrical power subsystem weight reduction due to incorporation of advanced materials; and (6) structural shell weight reduction. Results indicated that advanced aerothermodynamic methodology and aft end configuring may provide an enlarged allowable zone for engine nozzle protrusions into the separated flow region. Payload manifesting and non-hydrogen propellant manifesting at the space station is recommended.

  11. Benzoxaborole Antimalarial Agents. Part 4. Discovery of Potent 6-(2-(Alkoxycarbonyl)pyrazinyl-5-oxy)-1,3-dihydro-1-hydroxy-2,1-benzoxaboroles

    PubMed Central

    2016-01-01

    A series of 6-hetaryloxy benzoxaborole compounds was designed and synthesized for a structure–activity relationship (SAR) investigation to assess the changes in antimalarial activity which result from 6-aryloxy structural variation, substituent modification on the pyrazine ring, and optimization of the side chain ester group. This SAR study discovered highly potent 6-(2-(alkoxycarbonyl)pyrazinyl-5-oxy)-1,3-dihydro-1-hydroxy-2,1-benzoxaboroles (9, 27–34) with IC50s = 0.2–22 nM against cultured Plasmodium falciparum W2 and 3D7 strains. Compound 9 also demonstrated excellent in vivo efficacy against P. berghei in infected mice (ED90 = 7.0 mg/kg). PMID:26067904

  12. High Performance Liquid Chromatography/Video Fluorometry. Part II. Applications.

    DTIC Science & Technology

    1981-09-30

    HIGH PERFORMANCE LIQUID CHROMATOGRAPHY /VIDEO FLUOROMETRY. PART...REP«T_N&:-ŗ/ High Performance Liquid Chromatography /Video Fluorometry» Part II. Applications« by | Dennis C./Shelly* Michael P./Vogarty and...Data EnlirtdJ REPORT DOCUMENTATION PAGE t. REPORT NUMBER 2 GOVT ACCESSION NO 4. T1TI.F (and Submit) lP-^fffsyva High Performance Liquid Chromatography

  13. Development of procedures for calculating stiffness and damping of elastomers in engineering applications. Part 5: Elastomer performance limits and the design and test of an elastomer damper

    NASA Technical Reports Server (NTRS)

    Tecza, J. A.; Darlow, M. S.; Smalley, A. J.

    1979-01-01

    Tests were performed on elastomer specimens of the material polybutadiene to determine the performance limitations imposed by strain, temperature, and frequency. Three specimens were tested: a shear specimen, a compression specimen, and a second compression specimen in which thermocouples were embedded in the elastomer buttons. Stiffness and damping were determined from all tests, and internal temperatures were recorded for the instrumented compression specimen. Measured results are presented together with comparisons between predictions of a thermo-viscoelastic analysis and the measured results. Dampers of polybutadiene and Viton were designed, built, and tested. Vibration measurements were made and sensitivity of vibration to change in unbalance was also determined. Values for log decrement were extracted from the synchronous response curves. Comparisons were made between measured sensitivity to unbalance and log decrement and predicted values for these quantities.

  14. Coal-seismic, desktop computer programs in BASIC; Part 5, Perform X-square T-square analysis and plot normal moveout lines on seismogram overlay

    USGS Publications Warehouse

    Hasbrouck, W.P.

    1983-01-01

    Processing of data taken with the U.S. Geological Survey's coal-seismic system is done with a desktop, stand-alone computer. Programs for this computer are written in the extended BASIC language used by the Tektronix 4051 Graphic System. This report presents computer programs to perform X-square/T-square analyses and to plot normal moveout lines on a seismogram overlay.

  15. EVALUATION OF THE COMMUNITY MULTISCALE AIR QUALITY (CMAQ) MODEL VERSION 4.5: UNCERTAINTIES AND SENSITIVITIES IMPACTING MODEL PERFORMANCE: PART I - OZONE

    EPA Science Inventory

    This study examines ozone (O3) predictions from the Community Multiscale Air Quality (CMAQ) model version 4.5 and discusses potential factors influencing the model results. Daily maximum 8-hr average O3 levels are largely underpredicted when observed O...

  16. Orbit-determination performance of Doppler data for interplanetary cruise trajectories. Part 2: 8.4-GHz performance and data-weighting strategies

    NASA Technical Reports Server (NTRS)

    Ulvestad, J. S.

    1992-01-01

    A consider error covariance analysis was performed in order to investigate the orbit-determination performance attainable using two-way (coherent) 8.4-GHz (X-band) Doppler data for two segments of the planned Mars Observer trajectory. The analysis includes the effects of the current level of calibration errors in tropospheric delay, ionospheric delay, and station locations, with particular emphasis placed on assessing the performance of several candidate elevation-dependent data-weighting functions. One weighting function was found that yields good performance for a variety of tracking geometries. This weighting function is simple and robust; it reduces the danger of error that might exist if an analyst had to select one of several different weighting functions that are highly sensitive to the exact choice of parameters and to the tracking geometry. Orbit-determination accuracy improvements that may be obtained through the use of calibration data derived from Global Positioning System (GPS) satellites also were investigated, and can be as much as a factor of three in some components of the spacecraft state vector. Assuming that both station-location errors and troposphere calibration errors are reduced simultaneously, the recommended data-weighting function need not be changed when GPS calibrations are incorporated in the orbit-determination process.

  17. Prediction of Successful Nursing Performance. Part I and Part II.

    ERIC Educational Resources Information Center

    Schwirian, Patricia M.

    Two of three phases of a study were conducted to (1) assess the state of the art on the prediction of nursing clinical performance and (2) obtain current information from nursing education programs about prediction criteria in use by them. Phase one involved a review of the 1965 through 1975 literature pertaining to studies that focused on the…

  18. Improvement of Automotive Part Supplier Performance Evaluation

    NASA Astrophysics Data System (ADS)

    Kongmunee, Chalermkwan; Chutima, Parames

    2016-05-01

    This research investigates the problem of the part supplier performance evaluation in a major Japanese automotive plant in Thailand. Its current evaluation scheme is based on experiences and self-opinion of the evaluators. As a result, many poor performance suppliers are still considered as good suppliers and allow to supply parts to the plant without further improvement obligation. To alleviate this problem, the brainstorming session among stakeholders and evaluators are formally conducted. The result of which is the appropriate evaluation criteria and sub-criteria. The analytical hierarchy process is also used to find suitable weights for each criteria and sub-criteria. The results show that a newly developed evaluation method is significantly better than the previous one in segregating between good and poor suppliers.

  19. 16 CFR Figure 2 to Part 1511 - Small Parts Gage

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 16 Commercial Practices 2 2013-01-01 2013-01-01 false Small Parts Gage 2 Figure 2 to Part 1511 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION FEDERAL HAZARDOUS SUBSTANCES ACT REGULATIONS REQUIREMENTS FOR PACIFIERS Pt.1511, Fig. 2 Figure 2 to Part 1511—Small Parts Gage EC03OC91.069...

  20. 16 CFR Figure 2 to Part 1511 - Small Parts Gage

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 16 Commercial Practices 2 2011-01-01 2011-01-01 false Small Parts Gage 2 Figure 2 to Part 1511 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION FEDERAL HAZARDOUS SUBSTANCES ACT REGULATIONS REQUIREMENTS FOR PACIFIERS Pt.1511, Fig. 2 Figure 2 to Part 1511—Small Parts Gage EC03OC91.069...

  1. 16 CFR Figure 2 to Part 1511 - Small Parts Gage

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 16 Commercial Practices 2 2012-01-01 2012-01-01 false Small Parts Gage 2 Figure 2 to Part 1511 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION FEDERAL HAZARDOUS SUBSTANCES ACT REGULATIONS REQUIREMENTS FOR PACIFIERS Pt.1511, Fig. 2 Figure 2 to Part 1511—Small Parts Gage EC03OC91.069...

  2. 16 CFR Figure 2 to Part 1511 - Small Parts Gage

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 16 Commercial Practices 2 2010-01-01 2010-01-01 false Small Parts Gage 2 Figure 2 to Part 1511 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION FEDERAL HAZARDOUS SUBSTANCES ACT REGULATIONS REQUIREMENTS FOR PACIFIERS Pt.1511, Fig. 2 Figure 2 to Part 1511—Small Parts Gage EC03OC91.069...

  3. 16 CFR Figure 2 to Part 1511 - Small Parts Gage

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 16 Commercial Practices 2 2014-01-01 2014-01-01 false Small Parts Gage 2 Figure 2 to Part 1511 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION FEDERAL HAZARDOUS SUBSTANCES ACT REGULATIONS REQUIREMENTS FOR PACIFIERS Pt.1511, Fig. 2 Figure 2 to Part 1511—Small Parts Gage EC03OC91.069...

  4. Performance of McRAS-AC in the GEOS-5 AGCM: Part 1, Aerosol-Activated Cloud Microphysics, Precipitation, Radiative Effects, and Circulation

    NASA Technical Reports Server (NTRS)

    Sud, Y. C.; Lee, D.; Oreopoulos, L.; Barahona, D.; Nenes, A.; Suarez, M. J.

    2012-01-01

    A revised version of the Microphysics of clouds with Relaxed Arakawa-Schubert and Aerosol-Cloud interaction (McRAS-AC), including, among others, the Barahona and Nenes ice nucleation parameterization, is implemented in the GEOS-5 AGCM. Various fields from a 10-year long integration of the AGCM with McRAS-AC were compared with their counterparts from an integration of the baseline GEOS-5 AGCM, and with satellite data as observations. Generally using McRAS-AC reduced biases in cloud fields and cloud radiative effects are much better over most of the regions of the Earth. Two weaknesses are identified in the McRAS-AC runs, namely, too few cloud particles around 40S-60S, and too high cloud water path during northern hemisphere summer over the Gulf Stream and North Pacific. Sensitivity analyses showed that these biases potentially originated from biases in the aerosol input. The first bias is largely eliminated in a sensitivity test using 50% smaller aerosol particles, while the second bias is much reduced when interactive aerosol chemistry was turned on. The main drawback of McRAS-AC is dearth of low-level marine stratus clouds, probably due to lack of dry-convection, not yet implemented into the cloud scheme. Despite these biases, McRAS-AC does simulate realistic clouds and their optical properties that can improve with better aerosol-input and thereby has the potential to be a valuable tool for climate modeling research because of its aerosol indirect effect simulation capabilities involving prediction of cloud particle number concentration and effective particle size for both convective and stratiform clouds is quite realistic.

  5. The Processing and Mechanical Properties of High Temperature/High Performance Composites. Book 5, Section 4: Processing: Matrices and Composites. Part 1

    DTIC Science & Technology

    1989-10-15

    PROCESSING: Matrices and Composites Partlof2 89 12 21 038 SUMMARY of TABLE OF CONTENTS EXECUTIVE SUMMARY SECTION 1: COATINGS AND INTERFACES Book 1...The first section in Book 1 is concerned with the properties and structure of bimaterial interfaces and the related problem of coating decohesion and...solidification products to provide a basis for microstructural development and alloy design in high temperature intermetallics in titanium and niobium base

  6. Discovery of novel 5,6,7,8-tetrahydro[1,2,4]triazolo[4,3-a]pyridine derivatives as γ-secretase modulators (Part 2).

    PubMed

    Takai, Takafumi; Koike, Tatsuki; Nakamura, Minoru; Kajita, Yuichi; Yamashita, Toshiro; Taya, Naohiro; Tsukamoto, Tetsuya; Watanabe, Tomomichi; Murakami, Koji; Igari, Tomoko; Kamata, Makoto

    2016-07-15

    γ-Secretase modulators (GSMs), which lower pathogenic amyloid beta (Aβ) without affecting the production of total Aβ or Notch signal, have emerged as a potential therapeutic agent for Alzheimer's disease (AD). A novel series of 5,6,7,8-tetrahydro[1,2,4]triazolo[4,3-a]pyridine derivatives was discovered and characterized as GSMs. Optimization of substituents at the 8-position of the core scaffold using ligand-lipophilicity efficiency (LLE) as a drug-likeness guideline led to identification of various types of high-LLE GSMs. Phenoxy compound (R)-17 exhibited especially high LLE as well as potent in vivo Aβ42-lowering effect by single administration. Furthermore, multiple oral administration of (R)-17 significantly reduced soluble and insoluble brain Aβ42, and ameliorated cognitive deficit in novel object recognition test (NORT) using Tg2576 mice as an AD model.

  7. 40 CFR Table F-1 to Subpart F of... - Performance Specifications for PM 2.5 Class II Equivalent Samplers

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... II Equivalent Samplers Performance test Specifications Acceptance criteria § 53.62 Full Wind Tunnel... Results: 95% ≤ Rc ≤ 105%. § 53.63 Wind Tunnel Inlet Aspiration Test Liquid VOAG produced aerosol at 2...

  8. Further performance evaluation of 5.3 μm cut-off Hawaii-2RG detectors

    NASA Astrophysics Data System (ADS)

    Ives, Derek; Beckmann, Udo; Alvarez, Domingo; Finger, Gert; Geimer, Christoph; Heininger, Matthias; Mehrgan, Leander; Tulloch, Simon

    2016-07-01

    ESO has now delivered or tested in-house, four new 5.3 μm cut-off H2RG detectors, for various projects, such as MATISSE for the VLTI and the upgrade project for CRIRES, the cryogenic high-resolution infrared echelle spectrograph for the VLT. The specified instruments have required the implementation of some of the more unusual read out options for these detectors, which may have already been used by other groups, for example, the line-reset-read and line-read-reset modes rather than the standard global reset mode. The detectors are also offered with both output speed options, that is, the standard slow, low noise readout and the faster, higher noise readout, where > 10 frames/s are possible. In the process of building these detector systems and implementing these new options we have delved deeper into some of the lesser known features of these detectors and tried to characterize them more fully. It is important that these characteristics are well understood before delivery of the next generation of detectors for the ELTs where high speed and windowing options are required. We obtain very good performance at 2 Mpixel/s pixel speeds with less than 40 e- rms read noise, in all other aspects such as linearity, noise versus number of non-destructive reads and cross talk then the performance of the outputs is the same as slow speed operation. However, the high speed output stages are quite complex to operate, they need to be very well tuned and are prone to oscillation, if not set correctly. We will report on the best bias options to optimize their performance. Some stability issues are also seen with the slow outputs and this is also reported. Likewise we have observed differences between global reset and line reset for the detectors, manifested in a significant increase in detector full well for the line reset option, this also will be reported on. We have also determined that there may be signal induced by the detector readout clocking process for certain detector

  9. Comparison of the Isothermal Oxidation Behavior of As-Cast Cu-17 Percent Cr and Cu-17 Percent Cr-5 Percent Al. Part 2; Scale Microstructures

    NASA Technical Reports Server (NTRS)

    Raj, S. V.

    2008-01-01

    The isothermal oxidation kinetics of as-cast Cu-17%Cr and Cu-17%Cr-5%Al in air were studied between 773 and 1173 K under atmospheric pressure. Details of the oxidation kinetics of these alloys were discussed in Part I. This paper analyzes the microstructures of the scale and its composition in an attempt to elucidate the oxidation mechanisms in these alloys. The scales formed on Cu-17%Cr specimens oxidized between 773 and 973 K consisted of external CuO and subsurface Cu2O layers. The total thickness of these scales varied from about 10 m at 773 K to about 450 m at 973 K. In contrast, thin scales formed on Cu-17%Cr-5%Al alloys oxidized between 773 and 1173 K. The exact nature of these scales could not be determined by x-ray diffraction but energy dispersive spectroscopy analyses were used to construct a scale composition map. Phenomenological oxidation mechanisms are proposed for the two alloys.

  10. The impact of body-part-naming training on the accuracy of imitative performances in 2- to 3-year-old children.

    PubMed

    Camões-Costa, Vera; Erjavec, Mihela; Horne, Pauline J

    2011-11-01

    A series of three experiments explored the relationship between 3-year-old children's ability to name target body parts and their untrained matching of target hand-to-body touches. Nine participants, 3 per experiment, were presented with repeated generalized imitation tests in a multiple-baseline procedure, interspersed with step-by-step training that enabled them to (i) tact the target locations on their own and the experimenter's bodies or (ii) respond accurately as listeners to the experimenter's tacts of the target locations. Prompts for on-task naming of target body parts were also provided later in the procedure. In Experiment 1, only tact training followed by listener probes were conducted; in Experiment 2, tacting was trained first and listener behavior second, whereas in Experiment 3 listener training preceded tact training. Both tact and listener training resulted in emergence of naming together with significant and large improvements in the children's matching performances; this was true for each child and across most target gestures. The present series of experiments provides evidence that naming--the most basic form of self-instructional behavior--may be one means of establishing untrained matching as measured in generalized imitation tests. This demonstration has a bearing on our interpretation of imitation reported in the behavior analytic, cognitive developmental, and comparative literature.

  11. 40 CFR Table F-1 to Subpart F of... - Performance Specifications for PM 2.5 Class II Equivalent Samplers

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... and 24 km/hr Relative Aspiration: 95% ≤A ≤105%. § 53.64 Static Fractionator Test Evaluation of the fractionator under static conditions Dp50 = 2.5 µm ±0.2 µm Numerical Analysis Results: 95% ≤Rc ≤105%. §...

  12. 40 CFR Table F-1 to Subpart F of... - Performance Specifications for PM2.5 Class II Equivalent Samplers

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... km/hr Relative Aspiration: 95% ≤ A ≤ 105%. § 53.64 Static Fractionator Test Evaluation of the fractionator under static conditions Dp50 = 2.5 µm ±0.2 µm Numerical Analysis Results: 95% ≤ Rc ≤ 105%. §...

  13. Nb{sub 2}O{sub 5} hollow nanospheres as anode material for enhanced performance in lithium ion batteries

    SciTech Connect

    Sasidharan, Manickam; Gunawardhana, Nanda; Yoshio, Masaki; Nakashima, Kenichi

    2012-09-15

    Graphical abstract: Nb{sub 2}O{sub 5} hollow nanosphere constructed electrode delivers high capacity of 172 mAh g{sup −1} after 250 cycles and maintains structural integrity and excellent cycling stability. Highlights: ► Nb{sub 2}O{sub 5} hollow nanospheres synthesis was synthesized by soft-template. ► Nb{sub 2}O{sub 5} hollow nanospheres were investigated as anode material in Li-ion battery. ► Nanostructured electrode delivers high capacity of 172 mAh g{sup −1} after 250 cycles. ► The electrode maintains the structural integrity and excellent cycling stability. ► Nanosized shell domain facilitates fast lithium intercalation/deintercalation. -- Abstract: Nb{sub 2}O{sub 5} hollow nanospheres of average diameter ca. ∼29 nm and hollow cavity size ca. 17 nm were synthesized using polymeric micelles with core–shell–corona architecture under mild conditions. The hollow particles were thoroughly characterized by transmission electron microscope (TEM), X-ray diffraction (XRD), infrared spectroscopy (FTIR), thermal (TG/DTA) and nitrogen adsorption analyses. Thus obtained Nb{sub 2}O{sub 5} hollow nanospheres were investigated as anode materials for lithium ion rechargeable batteries for the first time. The nanostructured electrode delivers high capacity of 172 mAh g{sup −1} after 250 cycles of charge/discharge at a rate of 0.5 C. More importantly, the hollow particles based electrodes maintains the structural integrity and excellent cycling stability even after exposing to high current density 6.25 A g{sup −1}. The enhanced electrochemical behavior is ascribed to hollow cavity coupled with nanosized Nb{sub 2}O{sub 5} shell domain that facilitates fast lithium intercalation/deintercalation kinetics.

  14. Viral load of equine herpesviruses 2 and 5 in nasal swabs of actively racing Standardbred trotters: Temporal relationship of shedding to clinical findings and poor performance.

    PubMed

    Back, Helena; Ullman, Karin; Treiberg Berndtsson, Louise; Riihimäki, Miia; Penell, Johanna; Ståhl, Karl; Valarcher, Jean-François; Pringle, John

    2015-09-30

    The equine gamma herpesviruses 2 and 5 (EHV-2 and -5) have frequently been observed in the equine population and until recently presumed low to nonpathogenic. However, recent reports linking presence of equine gamma herpesviruses with clinical signs of mild to severe lung disease, suggest that the role of these viruses in respiratory disease and poor performance syndrome is still unclear. Moreover, baseline data regarding the temporal pattern of shedding of EHV-2 and EHV-5 within stables and within individual actively racing horses have been lacking. In a prospective longitudinal study, we followed elite racing Standardbred trotters at monthly intervals for 13 months, to investigate whether the amount of EHV-2 and EHV-5 shedded in nasal secretions varied over time within and between individual horses. Sixty-six elite horses were investigated by analyzing nasal swabs and serum samples, a health check and evaluation of athletic performance monthly during the study period. Nasal swabs were analyzed with two newly developed qPCR assays for EHV-2 and EHV-5, respectively. Of 663 samples, 197 (30%) were positive for EHV-2 and 492 (74%) positive for EHV-5. Furthermore, 176 (27%) of the samples were positive for both EHV-2 and EHV-5 simultaneously. There was considerable variation in the amount and frequency of shedding of EHV-2 and EHV-5 within and between individual horses. Viral load varied seasonally, but neither EHV-2 nor EHV-5 viral peaks were associated with clinical respiratory disease and/or poor performance in racing Standardbred trotters.

  15. High-performance p-n heterojunction photodetectors based on V2O5 nanorods by spray pyrolysis

    NASA Astrophysics Data System (ADS)

    Abd-Alghafour, N. M.; Ahmed, Naser. M.; Hassan, Z.; Bououdina, M.

    2016-09-01

    V2O5 heterojunction photodetector was fabricated onto Si(100) substrate using spray pyrolysis technique. Vanadium chloride (VCl3) precursor with 0.05 M concentration was used to prepare V2O5 thin film. The structural, morphological, and optical properties of V2O5 thin film were investigated. High-resolution X-ray diffraction analysis confirmed the formation of V2O5 thin film with a preferred orientation along (110) plane. Morphological observations using field emission scanning electron microscope displayed the formation of thin film with rod-like nanostructure. The optical properties examined by photoluminescence spectroscopy indicated a high-intensity visible peak centered around 530 nm. Current-voltage ( I- V) characteristics of the fabricated device under visible light exhibited low dark current and high photocurrent of 540 μA at 3 V bias voltages. Upon exposure to 560 nm visible light (24 mW/cm2) at 3 V, the device displayed a good sensitivity of 20.16 × 102. In addition, the internal gain of the photodiode was 21.16, and the photoresponse peak was 50 mA/W. The rise and recovery times of the photodiode were calculated to be 0.127 and 0.526 s under visible light (560 nm, 24 mW/cm2), respectively, at 3 V.

  16. Performance and applicability of a 2.5-D ice-flow model in the vicinity of a dome

    NASA Astrophysics Data System (ADS)

    Passalacqua, Olivier; Gagliardini, Olivier; Parrenin, Frédéric; Todd, Joe; Gillet-Chaulet, Fabien; Ritz, Catherine

    2016-07-01

    Three-dimensional ice flow modelling requires a large number of computing resources and observation data, such that 2-D simulations are often preferable. However, when there is significant lateral divergence, this must be accounted for (2.5-D models), and a flow tube is considered (volume between two horizontal flowlines). In the absence of velocity observations, this flow tube can be derived assuming that the flowlines follow the steepest slope of the surface, under a few flow assumptions. This method typically consists of scanning a digital elevation model (DEM) with a moving window and computing the curvature at the centre of this window. The ability of the 2.5-D models to account properly for a 3-D state of strain and stress has not clearly been established, nor their sensitivity to the size of the scanning window and to the geometry of the ice surface, for example in the cases of sharp ridges. Here, we study the applicability of a 2.5-D ice flow model around a dome, typical of the East Antarctic plateau conditions. A twin experiment is carried out, comparing 3-D and 2.5-D computed velocities, on three dome geometries, for several scanning windows and thermal conditions. The chosen scanning window used to evaluate the ice surface curvature should be comparable to the typical radius of this curvature. For isothermal ice, the error made by the 2.5-D model is in the range 0-10 % for weakly diverging flows, but is 2 or 3 times higher for highly diverging flows and could lead to a non-physical ice surface at the dome. For non-isothermal ice, assuming a linear temperature profile, the presence of a sharp ridge makes the 2.5-D velocity field unrealistic. In such cases, the basal ice is warmer and more easily laterally strained than the upper one, the walls of the flow tube are not vertical, and the assumptions of the 2.5-D model are no longer valid.

  17. Performance Oriented Packaging Testing of Tank, Cartridge, 3 IN/50, Mk 5 Mods 0, 1, 2 for Packing Group II Solid Hazardous Materials.

    DTIC Science & Technology

    1993-04-01

    NUMBERS Performance Oriented Packaging Testing of Tank, D I k T Cartridge, 3*/50, Mk 5 Mods 0 , 1, 2 for Packing Group 11t~~c Solid Hazardous Materials r...due to their similarities in design, size, and weight, this test is considered representative of qualifica- tion testing for the Mk 5 Mods 0 , 2 3"/50...TANK, CARTRIDGE, 3"/50, MK 5 MODS 0 , 1, 2 FOR PACKING GROUP II SOLID HAZARDOUS MATERIALS Author: Karcn McDonnell Mechanical Engineer Performing

  18. LABORATORY AND FIELD EVALUATION OF CRYSTALLIZED DOW 704 OIL ON THE PERFORMANCE OF THE WINS PM2.5 FRACTIONATOR

    EPA Science Inventory

    Subsequent to the 1997 promulgation of the Federal Reference Method (FRM) for monitoring PM2.5 in ambient air, the United States Environmental Protection Agency (USEPA) received reports that the Dow 704 diffusion oil used in the method's WINS fractionator would occasionally cry...

  19. Electrochemically grown nanocrystalline V2O5 as high-performance cathode for sodium-ion batteries

    NASA Astrophysics Data System (ADS)

    Li, Hui-Ying; Yang, Cheng-Hsien; Tseng, Chuan-Ming; Lee, Sheng-Wei; Yang, Chun-Chuen; Wu, Tzi-Yi; Chang, Jeng-Kuei

    2015-07-01

    Nanocrystalline V2O5 with a bilayer structure is directly grown on a steel substrate electrochemically in VOSO4-based solution as a cathode for sodium-ion batteries. No complicated slurry preparation procedure, involving polymer binder and conducting agent additions, is needed for this electrode synthesis. The incorporation of NaCH3COO in the VOSO4 solution promotes oxide growth and improves oxide film uniformity. The interlayer distance between two-dimensional V2O5 stacks in the structure is as large as ∼11.6 Å, which is favorable for accommodating Na+ ions. The growth potential is critical to determine the oxide architectures and thus the corresponding Na+ storage properties (in terms of capacity, high-rate capability, and cycling stability). An optimal charge-discharge capacity of 220 mAh g-1 is achieved for V2O5 grown in an activation-controlled potential region (i.e., 0.8 V vs. an Ag/AgCl reference electrode). This V2O5 electrode shows only 8% capacity decay after 500 cycles.

  20. Effect of increasing CO/sub 2/ on ocean biota. Volume II, Part 5. Environmental and societal consequences of a possible CO/sub 2/-induced climate change

    SciTech Connect

    Holm-Hansen, O.

    1982-07-01

    Attempts to predict the most important biological effects on the marine biota caused by increased atmospheric CO/sub 2/ concentrations and concomitant climactic changes are discussed. Particular attention is placed on phytoplankton, benthic plants, microbial cells, zooplankton, and fish stocks, and how changes in one or more of these trophic levels can result in significant changes in the nature and dynamics of the overall food web. Surface waters of the entire marine environment are considered, including the intertidal zone and estuaries; deeper waters are not considered. The major environmental factors considered are: (1) an increase in atmospheric CO/sub 2/ concentrations; (2) an increase in atmospheric temperature; (3) a decrease in pH of ocean water; and (4) an increase in atmospheric ozone concentration. The magnitude and temporal aspects of these atmospheric changes are based on previously developed models. (ERB)

  1. Discovery of pyrazolo[1,5-a]pyrimidine-based CHK1 inhibitors: a template-based approach--part 2.

    PubMed

    Labroli, Marc; Paruch, Kamil; Dwyer, Michael P; Alvarez, Carmen; Keertikar, Kartik; Poker, Cory; Rossman, Randall; Duca, Jose S; Fischmann, Thierry O; Madison, Vincent; Parry, David; Davis, Nicole; Seghezzi, Wolfgang; Wiswell, Derek; Guzi, Timothy J

    2011-01-01

    Previous efforts by our group have established pyrazolo[1,5-a]pyrimidine as a viable core for the development of potent and selective CDK inhibitors. As part of an effort to utilize the pyrazolo[1,5-a]pyrimidine core as a template for the design and synthesis of potent and selective kinase inhibitors, we focused on a key regulator in the cell cycle progression, CHK1. Continued SAR development of the pyrazolo[1,5-a]pyrimidine core at the C5 and C6 positions, in conjunction with previously disclosed SAR at the C3 and C7 positions, led to the discovery of potent and selective CHK1 inhibitors.

  2. Determination of the anti-tumor agent, 10-chloro-5-(2-dimethylaminoethyl)-7h-indolo[2,3-c] quinoline-6(5h)-one. HCl in blood or plasma by high-performance liquid chromatography.

    PubMed

    Strojny, N; D'Arconte, L; de Silva, J A

    1981-04-10

    A sensitive and specific high-performance liquid chromatographic assay was developed for the determination of 10-chloro-5-(2-dimethylaminoethyl)-7H-indolo [2,3-C] quinolin-6(5H) one [I] in blood or plasma with an overall recovery of 100.3 +/- 9.1% and a limit of quantitation of 1.0 ng per ml of blood or plasma. the assay was used to determine blood concentrations of the drug in the rat following oral administration by intubation of a 1.17-mg dose of [I] . HCl.

  3. Hyperactivity in Childhood as a Predictor of School Performance in Elementary School: Modifying Effect of a Serotonin Receptor Gene (5-HTR2A)

    ERIC Educational Resources Information Center

    Pulkki-Raback, Laura; Pullmann, Helle; Hintsanen, Mirka; Alatupa, Saija; Ravaja, Niklas; Lehtimaki, Terho; Keltikangas-jarvinen, Liisa

    2010-01-01

    Introduction: Genes have been suggested to interact with predictors of school performance, but evidence is scarce. The purpose was to examine whether a hyperactive temperament leads to different school performance, depending on variability in a serotonin receptor gene (5-HTR2A). Method: The participants were a population-based sample of 909 girls…

  4. 5 CFR 919.25 - How is this part organized?

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 5 Administrative Personnel 2 2010-01-01 2010-01-01 false How is this part organized? 919.25 Section 919.25 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT (CONTINUED) CIVIL SERVICE REGULATIONS (CONTINUED) GOVERNMENTWIDE DEBARMENT AND SUSPENSION (NONPROCUREMENT) § 919.25 How is this...

  5. Modernizing medical photography, part 2.

    PubMed

    Crompton, Paul

    2005-03-01

    Part 1 of this paper explored the origins of process activity mapping, one of the major tools currently being used to modernize patient pathways in the National Health Service in Great Britain. Within medical photography the current notion of modernization is inextricably linked to the development of digital technology. Whilst the core principle of capturing light on a sensitive medium remains as clear and relevant as ever, the mechanisms by which the image is processed and presented to the client have changed profoundly. Part 2 shows how the principles of lean thinking and process activity mapping can be utilized to harness the advantages of digital technology to provide a modern and appropriate medical photography service in a large disparate teaching hospital.

  6. Improved electrochemical performance of spinel LiMn1.5Ni0.5O4 through MgF2 nano-coating

    SciTech Connect

    Wu, Qing; Zhang, Xiaoping; Sun, Shuwei; Wan, Ning; Pan, Du; Bai, Ying; Zhu, Huiyuan; Hu, Yong-Sheng; Dai, Sheng

    2015-07-08

    In this paper, a spinel LiMn1.5Ni0.5O4 (LMNO) cathode material synthesized by a sol–gel method is modified by MgF2 nano-coating via a wet coating strategy. The results of X-ray diffraction (XRD), Raman spectroscopy, field emission scanning electron microscopy (FESEM) and high resolution transmission electron microscopy (HRTEM) showed that the MgF2 nano-coating layers do not physically change the bulk structure of the pristine material. Compared with the pristine compound, the MgF2-coated LMNO electrodes display enhanced cycling stabilities. Particularly, the 5 wt% MgF2-coated LMNO demonstrates the best reversibility, with a capacity retention of 89.9% after 100 cycles, much higher than that of the pristine material, 69.3%. The dQ/dV analysis and apparent Li+ diffusion coefficient calculation prove that the kinetic properties are enhanced after MgF2 surface modification, which partly explains the improved electrochemical performances. Electrochemical impedance spectroscopy (EIS) and Fourier transform infrared spectroscopy (FTIR) data confirm that the MgF2 coating layer helps in suppressing the fast growth of the solid electrolyte interface (SEI) film in repeated cycling, which effectively stabilizes the spinel structure. Finally and additionally, differential scanning calorimetry (DSC) tests show that the MgF2 nano-coating layer also helps in enhancing the thermal stability of the LMNO cathode.

  7. The discovery of 1,2,3,9b-tetrahydro-5H-imidazo[2,1-a]isoindol-5-ones as a new class of respiratory syncytial virus (RSV) fusion inhibitors. Part 1.

    PubMed

    Bond, Silas; Draffan, Alistair G; Fenner, Jennifer E; Lambert, John; Lim, Chin Yu; Lin, Bo; Luttick, Angela; Mitchell, Jeffrey P; Morton, Craig J; Nearn, Roland H; Sanford, Vanessa; Stanislawski, Pauline C; Tucker, Simon P

    2015-02-15

    Respiratory syncytial virus (RSV) is a major cause of respiratory tract infections in infants, young children and adults. Compound 1a (9b-(4-chlorophenyl)-1-(4-fluorobenzoyl)-1,2,3,9b-tetrahydro-5H-imidazo[2,1-a]isoindol-5-one) was identified as an inhibitor of A and B strains of RSV targeting the fusion glycoprotein. SAR was developed by systematic exploration of the phenyl (R(1)) and benzoyl (R(2)) groups. Furthermore, introduction of a nitrogen at the 8-position of the tricyclic core resulted in active analogues with improved properties (aqueous solubility, protein binding and logD) and excellent rat pharmacokinetics (e.g., rat oral bioavailability of 89% for compound 17).

  8. Performance and surge limits of a TF30-P-3 turbofan engine/axisymmetric mixed-compression inlet propulsion system at Mach 2.5

    NASA Technical Reports Server (NTRS)

    Wasserbauer, J. F.; Neumann, H. E.; Shaw, R. J.

    1985-01-01

    Steady-state performance and inlet-engine compatibility were investigated with a low-bleed inlet. The inlet had minimum internal contraction, consistent with high total pressure recovery and low cowl drag. The inlet-engine combination displayed good performance with only about 2% of inlet performance bleed. The inlet-engine combination had 5.58 deg angle-of-attack capability with 6% bleed.

  9. Small-size 81- to 83.5-percent efficient 2- and 4-stage depressed collectors for octave-bandwidth high-performance TWT's

    NASA Technical Reports Server (NTRS)

    Kosmahl, H. G.; Ramins, P.

    1977-01-01

    In a joint USAF-NASA Program, Lewis Research Center is carrying out an efficiency improvement program on traveling wave tubes for use in electronic counter measures by applying multistage depressed collector (MDC) and spent beam refocusing techniques. In the analytic part of the effort, three-dimensional electron trajectories are computed throughout the TWT. On the experimental side, tube performance is evaluated first without the MDC; then, the spent beam is analyzed for symmetry, circularity, and velocity spread. The three-dimensional theory predicts a MDC-efficiency, at mid-band, of 81 per cent for a 2-stage MDC with symmetric, circular, and optimally refocused beams and 85.5 per cent for a 4-stage MDC. Experimental results to date have yielded MDC efficiencies of a minimum of 81 and 83 per cent for a 2- and 4-stage MDC, respectively, across a one-octave bandwidth of a 4.8 to 9.6 GHz 330-to-550-W TWT.

  10. COS NUV External Spectroscopic Performance - Part 1

    NASA Astrophysics Data System (ADS)

    Ghavamian, Parviz

    2009-07-01

    somewhat larger than the numberdescribed in the Activity Summary, but is necessary to perform the intendedtests of the COS spectral resolution.This activity is SMOV program COS 16.IMPLEMENTATION METHOD: Stored CommandingDATA REQUIREMENTS: Approximately 420 MBDEPENDENCIES: Execute after verification based upon results of activity COS 15 {Internal NUV Wavelength Calibration}APPLICABLE SMOV REQUIREMENTS: L.10.4.2.3.7.2; L.10.4.2.3.13; L.10.4.2.1.8

  11. Performance Oriented Packaging Testing of Tank, Cartridge, 3 in/50, Mk 5 Mods 0, 1, 2 for Packing Group II Solid Hazardous Materials

    DTIC Science & Technology

    1993-01-01

    Mods 0 , 1, 2 for Packing Group II Solid Hazardous Materials 6. AUTHORIS) Karen McDonnell 7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) 8...design, size, and weight, this test is considered representative of qualifica- tion testing for the Mk 5 Mods 0 , 2 3"/50 Cartridge Tanks as per the...PERFORMANCE ORIENTED PACKAGING TESTING OF TANK, CARTRIDGE, 3"/50, MK 5 MODS 0 , 1, 2 FOR PACKING GROUP II SOLID HAZARDOUS MATERIALS Author: Karen

  12. Scaffold oriented synthesis. Part 3: design, synthesis and biological evaluation of novel 5-substituted indazoles as potent and selective kinase inhibitors employing [2+3] cycloadditions.

    PubMed

    Akritopoulou-Zanze, Irini; Wakefield, Brian D; Gasiecki, Alan; Kalvin, Douglas; Johnson, Eric F; Kovar, Peter; Djuric, Stevan W

    2011-03-01

    We report the synthesis and biological evaluation of 5-substituted indazoles and amino indazoles as kinase inhibitors. The compounds were synthesized in a parallel synthesis fashion from readily available starting materials employing [2+3] cycloaddition reactions and were evaluated against a panel of kinase assays. Potent inhibitors were identified for numerous kinases such as Rock2, Gsk3β, Aurora2 and Jak2.

  13. CW and passively Q-switched laser performance of Nd:Lu2SiO5 crystal

    NASA Astrophysics Data System (ADS)

    Xu, Xiaodong; Di, Juqing; Zhang, Jian; Tang, Dingyuan; Xu, Jun

    2016-01-01

    We demonstrated an efficient and controllable dual-wavelength continuous-wave (CW) laser of Nd:Lu2SiO5 (Nd:LSO) crystal. The maximum output power was 3.02 W at wavelength of 1075 nm and 1079 nm, and with increasing of absorbed pump power, the ratio of 1079 nm laser rose. The slope efficiency of 65.6% and optical-to-optical conversion efficiency of 63.3% were obtained. The passively Q-switched laser properties of Nd:LSO were investigated for the first time. The shortest pulse, maximum pulse energy and peak power were 11.58 ns, 29.05 μJ and 2.34 kW, respectively.

  14. Bedside ultrasonography in the ICU: part 2.

    PubMed

    Beaulieu, Yanick; Marik, Paul E

    2005-09-01

    This is the second of a two-part review on the application of bedside ultrasonography in the ICU. In this part, the following procedures will be covered: (1) echocardiography and cardiovascular diagnostics (second part); (2) the use of bedside ultrasound to facilitate central-line placement and to aid in the care of patients with pleural effusions and intra-abdominal fluid collections; (3) the role of hand-carried ultrasound in the ICU; and (4) the performance of bedside ultrasound by the intensivist. The safety and utility of bedside ultrasonography performed by adequately trained intensivists has now been well demonstrated. This technology, as a powerful adjunct to the physical examination, will become an indispensable tool in the management of critically ill patients.

  15. Alternate-Fueled Combustor-Sector Performance: Part A: Combustor Performance Part B: Combustor Emissions

    NASA Technical Reports Server (NTRS)

    Shouse, D. T.; Neuroth, C.; Henricks, R. C.; Lynch, A.; Frayne, C.; Stutrud, J. S.; Corporan, E.; Hankins, T.

    2010-01-01

    Alternate aviation fuels for military or commercial use are required to satisfy MIL-DTL-83133F(2008) or ASTM D 7566 (2010) standards, respectively, and are classified as drop-in fuel replacements. To satisfy legacy issues, blends to 50% alternate fuel with petroleum fuels are certified individually on the basis of feedstock. Adherence to alternate fuels and fuel blends requires smart fueling systems or advanced fuel-flexible systems, including combustors and engines without significant sacrifice in performance or emissions requirements. This paper provides preliminary performance (Part A) and emissions and particulates (Part B) combustor sector data for synthetic-parafinic-kerosene- (SPK-) type fuel and blends with JP-8+100 relative to JP-8+100 as baseline fueling.

  16. Performance-Enhanced Bolometric Terahertz Detectors Based on V2O5 for 15 to 30 THz

    NASA Astrophysics Data System (ADS)

    Sumesh, M. A.; Karanth, S. P.; Thomas, Beno; Rao, G. M.; Viswanathan, M.; Chakraborty, P.; Rao, G. N.

    2016-10-01

    Terahertz (THz) radiation perception using uncooled detectors are gaining importance due to the increasing demands in the areas of military, space, and industrial, medical, and surveillance applications. In spite of the efforts of researchers to fill the THz gap, there exists a need for detectors in the range between 15 THz and 30 THz. In this paper, we discuss the development of bolometric detectors whose performance is enhanced by an optical immersion technique and their characterization in the aforesaid range of frequencies. These detectors are characterized by high specific detectivity (D*) of 1.28 × 109 cmHz1/2 W-1 and high radiometric resolution (noise-equivalent temperature difference = 26 mK) and are fast enough for bolometric detectors (time constant = 1.7 ms), which make them suitable for spectroscopic and imaging applications.

  17. Performance-Enhanced Bolometric Terahertz Detectors Based on V2O5 for 15 to 30 THz

    NASA Astrophysics Data System (ADS)

    Sumesh, M. A.; Karanth, S. P.; Thomas, Beno; Rao, G. M.; Viswanathan, M.; Chakraborty, P.; Rao, G. N.

    2017-02-01

    Terahertz (THz) radiation perception using uncooled detectors are gaining importance due to the increasing demands in the areas of military, space, and industrial, medical, and surveillance applications. In spite of the efforts of researchers to fill the THz gap, there exists a need for detectors in the range between 15 THz and 30 THz. In this paper, we discuss the development of bolometric detectors whose performance is enhanced by an optical immersion technique and their characterization in the aforesaid range of frequencies. These detectors are characterized by high specific detectivity ( D*) of 1.28 × 109 cmHz1/2 W-1 and high radiometric resolution (noise-equivalent temperature difference = 26 mK) and are fast enough for bolometric detectors (time constant = 1.7 ms), which make them suitable for spectroscopic and imaging applications.

  18. SCALE: A modular code system for performing standardized computer analyses for licensing evaluation. Functional modules F9--F16 -- Volume 2, Part 2, Revision 4

    SciTech Connect

    West, J.T.; Hoffman, T.J.; Emmett, M.B.; Childs, K.W.; Petrie, L.M.; Landers, N.F.; Bryan, C.B.; Giles, G.E.

    1995-04-01

    SCALE--a modular code system for Standardized Computer Analyses Licensing Evaluation--has been developed by Oak Ridge National Laboratory at the request of the US Nuclear Regulatory Commission. The SCALE system utilizes well-established computer codes and methods within standard analysis sequences that (1) allow an input format designed for the occasional user and/or novice, (2) automate the data processing and coupling between modules, and (3) provide accurate and reliable results. System development has been directed at problem-dependent cross-section processing and analysis of criticality safety, shielding, heat transfer, and depletion/decay problems. Since the initial release of SCALE in 1980, the code system has been heavily used for evaluation of nuclear fuel facility and package designs. This revision documents Version 4.2 of the system. The manual is divided into three volumes: Volume 1--for the control module documentation, Volume 2--for functional module documentation; and Volume 3--for documentation of the data libraries and subroutine libraries. This volume discusses the following functional modules: MORSE-SGC; HEATING 7.2; KENO V.a; JUNEBUG-II; HEATPLOT-S; REGPLOT 6; PLORIGEN; and OCULAR.

  19. The ICON-1.2 hydrostatic atmospheric dynamical core on triangular grids - Part 1: Formulation and performance of the baseline version

    NASA Astrophysics Data System (ADS)

    Wan, H.; Giorgetta, M. A.; Zängl, G.; Restelli, M.; Majewski, D.; Bonaventura, L.; Fröhlich, K.; Reinert, D.; Rípodas, P.; Kornblueh, L.; Förstner, J.

    2013-06-01

    As part of a broader effort to develop next-generation models for numerical weather prediction and climate applications, a hydrostatic atmospheric dynamical core is developed as an intermediate step to evaluate a finite-difference discretization of the primitive equations on spherical icosahedral grids. Based on the need for mass-conserving discretizations for multi-resolution modelling as well as scalability and efficiency on massively parallel computing architectures, the dynamical core is built on triangular C-grids using relatively small discretization stencils. This paper presents the formulation and performance of the baseline version of the new dynamical core, focusing on properties of the numerical solutions in the setting of globally uniform resolution. Theoretical analysis reveals that the discrete divergence operator defined on a single triangular cell using the Gauss theorem is only first-order accurate, and introduces grid-scale noise to the discrete model. The noise can be suppressed by fourth-order hyper-diffusion of the horizontal wind field using a time-step and grid-size-dependent diffusion coefficient, at the expense of stronger damping than in the reference spectral model. A series of idealized tests of different complexity are performed. In the deterministic baroclinic wave test, solutions from the new dynamical core show the expected sensitivity to horizontal resolution, and converge to the reference solution at R2B6 (35 km grid spacing). In a dry climate test, the dynamical core correctly reproduces key features of the meridional heat and momentum transport by baroclinic eddies. In the aqua-planet simulations at 140 km resolution, the new model is able to reproduce the same equatorial wave propagation characteristics as in the reference spectral model, including the sensitivity of such characteristics to the meridional sea surface temperature profile. These results suggest that the triangular-C discretization provides a reasonable basis for

  20. Role of annealing duration on the microstructure and electrochemical performance of β-V2O5 thin films

    NASA Astrophysics Data System (ADS)

    Jeyalakshmi, K.; Muralidharan, G.

    2014-03-01

    Vanadium pentoxide thin films have been prepared by sol-gel spin coating method. The eight-layered films coated on fluorine-doped tin oxide substrate and glass substrate were subjected to different durations of annealing under a constant annealing temperature of 300 °C from 30 to 120 min. The X-ray diffraction spectrum reveals crystallinity along (2 0 0) direction. The SEM images of these films show the variation in the surface morphology with increase in annealing duration. The supercapacitor behaviour has been studied using cyclic voltammetry technique and electrochemical impedance spectroscopy. The film annealed for 60 min exhibits a maximum specific capacitance of 346 F/g at a scan rate of 5 mV/s with a charge transfer resistance of 172 Ω.

  1. Water soluble aerosols and gases at a UK background site - Part 1: Controls of PM2.5 and PM10 aerosol composition

    NASA Astrophysics Data System (ADS)

    Twigg, M. M.; Di Marco, C. F.; Leeson, S.; van Dijk, N.; Jones, M. R.; Leith, I. D.; Morrison, E.; Coyle, M.; Proost, R.; Peeters, A. N. M.; Lemon, E.; Frelink, T.; Braban, C. F.; Nemitz, E.; Cape, J. N.

    2015-07-01

    There is limited availability of long-term, high temporal resolution, chemically speciated aerosol measurements which can provide further insight into the health and environmental impacts of particulate matter. The Monitor for AeRosols and Gases (MARGA, Applikon B.V., NL) allows for the characterisation of the inorganic components of PM10 and PM2.5 (NH4+, NO3-, SO42-, Cl-, Na+, K+, Ca2+, Mg2+) and inorganic reactive gases (NH3, SO2, HCl, HONO and HNO3) at hourly resolution. The following study presents 6.5 years (June 2006 to December 2012) of quasi-continuous observations of PM2.5 and PM10 using the MARGA at the UK EMEP supersite, Auchencorth Moss, SE Scotland. Auchencorth Moss was found to be representative of a remote European site with average total water soluble inorganic mass of PM2.5 of 3.82 μg m-3. Anthropogenically derived secondary inorganic aerosols (sum of NH4+, NO3- and nss-SO42-) were the dominating species (63 %) of PM2.5. In terms of equivalent concentrations, NH4+ provided the single largest contribution to PM2.5 fraction in all seasons. Sea salt was the main component (73 %) of the PMcoarse fraction (PM10-PM2.5), though NO3- was also found to make a relatively large contribution to the measured mass (17 %) providing evidence of considerable processing of sea salt in the coarse mode. There was on occasions evidence of aerosol from combustion events being transported to the site in 2012 as high K+ concentrations (deviating from the known ratio in sea salt) coincided with increases in black carbon at the site. Pollution events in PM10 (defined as concentrations > 12 μg m-3) were on average dominated by NH4+ and NO3-, where smaller loadings at the site tended to be dominated by sea salt. As with other western European sites, the charge balance of the inorganic components resolved were biased towards cations, suggesting the aerosol was basic or more likely that organic acids contributed to the charge balance. This study demonstrates the UK

  2. Water soluble aerosols and gases at a UK background site - Part 1: Controls of PM2.5 and PM10 aerosol composition

    NASA Astrophysics Data System (ADS)

    Twigg, M. M.; Di Marco, C. F.; Leeson, S.; van Dijk, N.; Jones, M. R.; Leith, I. D.; Morrison, E.; Coyle, M.; Proost, R.; Peeters, A. N. M.; Lemon, E.; Frelink, T.; Braban, C. F.; Nemitz, E.; Cape, J. N.

    2015-02-01

    There is limited availability of long-term, high temporal resolution, chemically speciated aerosol measurements, which can lead to further insight into the health and environmental impacts of particulate matter. The Monitor for AeRosols and Gases (MARGA, Applikon B.V., NL) allows characterisation of the inorganic components of PM10 and PM2.5 (NH4+, NO3-, SO42-, Cl-, Na+, K+, Ca2+, Mg2+) and inorganic reactive gases (NH3, SO2, HCl, HONO and HNO3) at hourly resolution. The following study presents 6.5 years (June 2006 to December 2012) of quasi-continuous observations of PM2.5 and PM10 using the MARGA at the UK EMEP "Supersite", Auchencorth Moss, SE Scotland. Auchencorth Moss was found to be representative of a remote European site with average total water soluble inorganic mass of PM2.5 of 3.82 μg m-3. Anthropogenically derived secondary inorganic aerosols (sum of NH4+, NO3- and nss-SO42-), were the dominating species (63%) of PM2.5. In terms of equivalent concentrations, NH4+ provided the single largest contribution to PM2.5 fraction in all seasons. Sea salt, was the main component (73%) of the PMcoarse fraction (PM10-PM2.5), though NO3- was also found to make a relatively large contribution to the measured mass (17%) as providing evidence of considerable processing of sea salt in the coarse mode. There was on occasions evidence of aerosol from combustion events being transported to the site in 2012 as high K+ concentrations (deviating from the known ratio in sea salt) coincided with increases in black carbon at the site. Pollution events in PM10 (defined as concentrations > 12 μg m-3) were on average dominated by NH4+ and NO3-, where as smaller loadings at the site tended to be dominated by sea salt. As with other Western European sites, the charge balance of the inorganic components resolved were biased towards cations, suggesting the aerosol was basic or more likely, that organic acids contributed to the charge

  3. Performance of jet- and inner-ring-lubricated 35 millimeter bore ball bearings operating to 2.5 million DN

    NASA Technical Reports Server (NTRS)

    Schuller, F., T.; Signer, H. R.

    1981-01-01

    Parametric tests were conducted with a 35 millimeter bore, angular contact ball bearing having a single outer land guided cage. Lubrication was achieved by flowing oil through axial grooves and radial holes machined in the inner ring of the bearing. Test conditions were a thrust load of 667 N (150 lb), shaft speeds from 48,000 to 72,000 rpm, and an oil inlet temperature of 394 K (250 F). Data from tests where the distribution of the total oil supplied to the inner ring was 50 percent for bearing lubrication and 50 percent for bearing inner ring cooling were compared with those where the distribution pattern was 25 percent lubrication and 75 percent cooling. Successful operation was experienced with both the 50-50 and 25-75 percent flow distribution patterns to 2.5 million DN. The 50-50 percent flow pattern provided the cooler bearing operation of the two inner ring lubricated bearings. The jet lubricated bearing had lower outer ring and higher inner ring temperatures than the inner ring lubricated bearings. Maximum power loss of 2.8 kW (3.7 hp) was experienced with the 25-75 percent flow distribution, and maximum percent cage slip of 7.0 occurred at 72,300 rpm with the 50-50 percent flow distribution.

  4. Performance study for the photon measurements of the upgraded LHCf calorimeters with Gd2SiO5 (GSO) scintillators

    NASA Astrophysics Data System (ADS)

    Makino, Y.; Tiberio, A.; Adriani, O.; Berti, E.; Bonechi, L.; Bongi, M.; Caccia, Z.; D'Alessandro, R.; Del Prete, M.; Detti, S.; Haguenauer, M.; Itow, Y.; Iwata, T.; Kasahara, K.; Masuda, K.; Matsubayashi, E.; Menjo, H.; Mitsuka, G.; Muraki, Y.; Papini, P.; Ricciarini, S.; Sako, T.; Sakurai, N.; Suzuki, T.; Tamura, T.; Torii, S.; Tricomi, A.; Turner, W. C.; Ueno, M.; Zhou, Q. D.

    2017-03-01

    The Large Hadron Collider forward (LHCf) experiment was motivated to understand the hadronic interaction processes relevant to cosmic-ray air shower development. We have developed radiation-hard detectors with the use of Gd2SiO5 (GSO) scintillators for proton-proton √s = 13 TeV collisions. Calibration of such detectors for photon measurement has been completed at the CERN SPS T2-H4 line in 2015 using electron beams of 100–250 GeV and muon beams of 150–250 GeV . After the channel-by-channel absolute energy calibration, the energy resolution of the calorimeters is confirmed to be better than 3% for electrons with energy above 100 GeV . The position dependence of the energy scale of the calorimeters was reduced to the level of 1% after the corrections for scintillator nonuniformity and the shower leakage effect. The position resolution of the new shower imaging detector, a GSO-bar hodoscope interleaved in the calorimeter, was 100 μm for 200 GeV electrons. The experimental results are well explained by Monte Carlo simulations. We have confirmed that the new detectors meet the requirement of the LHCf experiment at √s = 13 TeV.

  5. 50 CFR Table 5 to Part 680 - Crab Size Codes

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 50 Wildlife and Fisheries 9 2010-10-01 2010-10-01 false Crab Size Codes 5 Table 5 to Part 680 Wildlife and Fisheries FISHERY CONSERVATION AND MANAGEMENT, NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION..., Table 5 Table 5 to Part 680—Crab Size Codes Size code Description 1 Standard or large sized crab or...

  6. 42 CFR 1005.5 - Ex parte contacts.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 42 Public Health 5 2010-10-01 2010-10-01 false Ex parte contacts. 1005.5 Section 1005.5 Public Health OFFICE OF INSPECTOR GENERAL-HEALTH CARE, DEPARTMENT OF HEALTH AND HUMAN SERVICES OIG AUTHORITIES APPEALS OF EXCLUSIONS, CIVIL MONEY PENALTIES AND ASSESSMENTS § 1005.5 Ex parte contacts. No party...

  7. 42 CFR 1005.5 - Ex parte contacts.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 42 Public Health 5 2011-10-01 2011-10-01 false Ex parte contacts. 1005.5 Section 1005.5 Public Health OFFICE OF INSPECTOR GENERAL-HEALTH CARE, DEPARTMENT OF HEALTH AND HUMAN SERVICES OIG AUTHORITIES APPEALS OF EXCLUSIONS, CIVIL MONEY PENALTIES AND ASSESSMENTS § 1005.5 Ex parte contacts. No party...

  8. 42 CFR 1005.5 - Ex parte contacts.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 42 Public Health 5 2012-10-01 2012-10-01 false Ex parte contacts. 1005.5 Section 1005.5 Public Health OFFICE OF INSPECTOR GENERAL-HEALTH CARE, DEPARTMENT OF HEALTH AND HUMAN SERVICES OIG AUTHORITIES APPEALS OF EXCLUSIONS, CIVIL MONEY PENALTIES AND ASSESSMENTS § 1005.5 Ex parte contacts. No party...

  9. 42 CFR 1005.5 - Ex parte contacts.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 42 Public Health 5 2013-10-01 2013-10-01 false Ex parte contacts. 1005.5 Section 1005.5 Public Health OFFICE OF INSPECTOR GENERAL-HEALTH CARE, DEPARTMENT OF HEALTH AND HUMAN SERVICES OIG AUTHORITIES APPEALS OF EXCLUSIONS, CIVIL MONEY PENALTIES AND ASSESSMENTS § 1005.5 Ex parte contacts. No party...

  10. 42 CFR 1005.5 - Ex parte contacts.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 42 Public Health 5 2014-10-01 2014-10-01 false Ex parte contacts. 1005.5 Section 1005.5 Public Health OFFICE OF INSPECTOR GENERAL-HEALTH CARE, DEPARTMENT OF HEALTH AND HUMAN SERVICES OIG AUTHORITIES APPEALS OF EXCLUSIONS, CIVIL MONEY PENALTIES AND ASSESSMENTS § 1005.5 Ex parte contacts. No party...

  11. 50 CFR Table 5 to Part 680 - Crab Size Codes

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 50 Wildlife and Fisheries 13 2012-10-01 2012-10-01 false Crab Size Codes 5 Table 5 to Part 680 Wildlife and Fisheries FISHERY CONSERVATION AND MANAGEMENT, NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION, DEPARTMENT OF COMMERCE (CONTINUED) SHELLFISH FISHERIES OF THE EXCLUSIVE ECONOMIC ZONE OFF ALASKA Pt. 680, Table 5 Table 5 to Part 680—Crab...

  12. 50 CFR Table 5 to Part 680 - Crab Size Codes

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 50 Wildlife and Fisheries 11 2011-10-01 2011-10-01 false Crab Size Codes 5 Table 5 to Part 680 Wildlife and Fisheries FISHERY CONSERVATION AND MANAGEMENT, NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION, DEPARTMENT OF COMMERCE (CONTINUED) SHELLFISH FISHERIES OF THE EXCLUSIVE ECONOMIC ZONE OFF ALASKA Pt. 680, Table 5 Table 5 to Part 680—Crab...

  13. COS FUV External Spectroscopic Performance - Part 1

    NASA Astrophysics Data System (ADS)

    Friedman, Scott

    2009-07-01

    The goal of this project is to measure the spectral resolution of absorption lines for each COS FUV grating. We will acquire science data at one central wavelength for each grating through both PSA and BOA apertures. We will evaluate the spectral resolution at offset pointings characteristic of routine COS observations. The targets chosen for these observations have sharp absorption lines. First, a target acquisition is performed to place the target at the center of the aperture. For each FUV grating we obtain moderately high S/N { 50 per resel counting statistics} observations at one central wavelength setting with the PSA. We repeat the sequence of observations at each of four additional POS-TARG pointings to form a diamond pattern whose vertices are displaced 0.25 arcsec in either X or Y from the initial pointing. The purpose of these observations is to characterize the degradation in spectral resolution due to small positioning errors in the peakup process. These observations will be obtained in TIME-TAG mode and will utilize FLASH=YES. The total exposure time in all 4 offset positions is equal to the exposure time at the central position. At each offset position, there are two exposures, one each at FP positions 3 and 1. For one grating {G130M} and central wavelength {1291} only we obtain a TIME-TAG exposure with FLASH=NO to verify auto-wavecal capability. In addition, on a brighter target, we obtain a single TTAG exposure for each grating with the object centered in the BOA aperture, in order to measure the spectral resolution in this mode. These spectra will have S/N=20. Finally, for each grating we obtain one TIME-TAG exposure and one ACCUM exposure with the object centered in the aperture to verify that the Doppler correction is being properly exectuted on board in ACCUM mode.The number of exposures in this program is somewhat greater than is described in the Activity Summary, but reflects what was intended to be measured.This is SMOV program COS 31

  14. Centralized Authentication with Kerberos 5, Part I

    SciTech Connect

    Wachsmann, A

    2004-06-09

    Account administration in a distributed Unix/Linux environment can become very complicated and messy if done by hand. Large sites use special tools to deal with this problem. I will describe how even very small installations like your three computer network at home can take advantage of the very same tools. The problem in a distributed environment is that password and shadow files need to be changed individually on each machine if an account change occurs. Account changes include: password change, addition/removal of accounts, name change of an account (UID/GID changes are a big problem in any case), additional or removed login privileges to a (group of) computer(s), etc. In this article, I will show how Kerberos 5 solves the authentication problem in a distributed computing environment. A second article will describe a solution for the authorization problem.

  15. [Studies on the performance of the dental air turbine handpieces. (Part 5) Rotational performance of various kinds of dental air turbine handpieces (N = N0--CvFv gamma) (author's transl)].

    PubMed

    Miyairi, H; Nagai, M; Fukuda, H; Muramatsu, A

    1981-10-01

    Making research on the rotational performance of the dental air turbine handpieces widely used for dental cutting instruments, we investigated with the relation between rotational speed and load on many kinds of dental handpieces used for clinical divisions and with the applications of the theoretical equations to have be shown in the previous report. And then we have the investigation on these properties. Dental handpieces to measured with these properties were classified the four types, standard types, torque type, miniature type and air bearing type. And we applied the experimental equations to these experimental values and determined the rotational coefficients, gamma and Cv. The rotational speed N and normal force Fv, which occurred the maximum work of air turbine handpieces, were calculated with our analysis and then these values of N and Fv were compared with the experimental results. These results, that is, experimental and calculated values have a good agreement and the development of the theoretical approach is useful for the estimation of the rotational performance. And we examined the possibility of rotational performance's estimation with the process of simple experiment on these air turbine handpieces.

  16. pH-regulated template-free assembly of Sb4O5Cl2 hollow microsphere crystallites with self-narrowed bandgap and optimized photocatalytic performance

    NASA Astrophysics Data System (ADS)

    Yang, Liuqing; Huang, Jianfeng; Cao, Liyun; Shi, Li; Yu, Qing; Kong, Xingang; Jie, Yanni

    2016-06-01

    Sb4O5Cl2 hollow microspheres with self-narrowed bandgap and optimized photocatalytic performances are synthesized via a facile template-free method. It is found that the crystal structure and morphology of Sb4O5Cl2 crystallites are strongly dependent on the pH values of precursors. Nano-sized irregular-cuboids assembled Sb4O5Cl2 micro-particles and hollow microspheres can be synthesized at pH 1 and 2, whereas individual Sb4O5Cl2 micro-belts become to form when the pH is higher than 3. The irregular-cuboids assembled Sb4O5Cl2 micro-particles and hollow microspheres exhibit self-narrowed bandgap and higher light absorption ability compared with individual Sb4O5Cl2 micro-belts. The photoelectrochemical measurements show that the assembled Sb4O5Cl2 hollow microsphere crystallites prepared at pH 2 exhibit enhanced carrier density, improved separation efficiency of electron-hole pairs and decreased electron-transfer resistance. As a result, the irregular-cuboids assembled Sb4O5Cl2 hollow microspheres prepared at pH = 2 exhibit the highest photocatalytic activity for the degradation of gaseous iso-propanol (IPA) and Rhodamine B (RhB) aqueous solution. The good photocatalytic activity of Sb4O5Cl2 sample prepared at pH = 2 may be caused by the synergistic effect of its higher light absorption, the decreased electron-transfer resistance, the suppressed recombination of photogenerated electrons and holes, and the increased surface area.

  17. pH-regulated template-free assembly of Sb4O5Cl2 hollow microsphere crystallites with self-narrowed bandgap and optimized photocatalytic performance

    PubMed Central

    Yang, Liuqing; Huang, Jianfeng; Cao, Liyun; Shi, Li; Yu, Qing; Kong, Xingang; Jie, Yanni

    2016-01-01

    Sb4O5Cl2 hollow microspheres with self-narrowed bandgap and optimized photocatalytic performances are synthesized via a facile template-free method. It is found that the crystal structure and morphology of Sb4O5Cl2 crystallites are strongly dependent on the pH values of precursors. Nano-sized irregular-cuboids assembled Sb4O5Cl2 micro-particles and hollow microspheres can be synthesized at pH 1 and 2, whereas individual Sb4O5Cl2 micro-belts become to form when the pH is higher than 3. The irregular-cuboids assembled Sb4O5Cl2 micro-particles and hollow microspheres exhibit self-narrowed bandgap and higher light absorption ability compared with individual Sb4O5Cl2 micro-belts. The photoelectrochemical measurements show that the assembled Sb4O5Cl2 hollow microsphere crystallites prepared at pH 2 exhibit enhanced carrier density, improved separation efficiency of electron-hole pairs and decreased electron-transfer resistance. As a result, the irregular-cuboids assembled Sb4O5Cl2 hollow microspheres prepared at pH = 2 exhibit the highest photocatalytic activity for the degradation of gaseous iso-propanol (IPA) and Rhodamine B (RhB) aqueous solution. The good photocatalytic activity of Sb4O5Cl2 sample prepared at pH = 2 may be caused by the synergistic effect of its higher light absorption, the decreased electron-transfer resistance, the suppressed recombination of photogenerated electrons and holes, and the increased surface area. PMID:27306196

  18. Effect of temperature of Li2O-Al2O3-TiO2-P2O5 solid-state electrolyte coating process on the performance of LiNi0.5Mn1.5O4 cathode materials

    NASA Astrophysics Data System (ADS)

    Deng, Yu-Feng; Zhao, Shi-Xi; Xu, Ya-Hui; Nan, Ce-Wen

    2015-11-01

    Electrochemical performance of spinel LiNi0.5Mn1.5O4 (LNMO) at elevated temperature is improved by solid-state electrolyte Li2O-Al2O3-TiO2-P2O5 (LATP) coating. Crystallinity and thickness of coatings are controlled by adjusting the coating process at two different temperatures (550 and 650 °C). 2.0 wt.% LATP-modified LNMO cathode materials obtained at 650 °C exhibits remarkably promoted electrochemical performance compared to that of the pristine one in terms of cycling and rate ability at 55 °C. The enhanced performance of the surface-modified samples can be accounted for the suppressed side reactions between the cathode materials and electrolyte solution. What is more important is that LATP cannot only protect the active materials from electrolyte solution but also improve Li+ mobility. The higher crystallinity of glass-ceramic LATP coating layer with thinner thickness implies more unobstructed, stable and shorter diffusion path of Li+ transport. It is found that the coating process is in favor of the disordered to ordered phase transition, implying that the heating process of coating plays a role of anneal as well.

  19. Detecting Earthquakes--Part 2.

    ERIC Educational Resources Information Center

    Isenberg, C.; And Others

    1983-01-01

    Basic concepts associated with seismic wave propagation through the earth and the location of seismic events were explained in part 1 (appeared in January 1983 issue). This part focuses on the construction of a student seismometer for detecting earthquakes and underground nuclear explosions anywhere on the earth's surface. (Author/JN)

  20. 4. PART 2 OF 2 PART PANORAMA WITH NO. CA2723. ...

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

    4. PART 2 OF 2 PART PANORAMA WITH NO. CA-272-3. SOUTH SIDE OF VIADUCT IN REAR. LOS ANGELES RIVER IN FOREGROUND. LOOKING NORTHWEST FROM WEST SIDE OF RIVER. HYPERION BOULEVARD OVERCROSSING OF LOS ANGELES RIVER IS UPPER SECTION OF VIADUCT. GLENDALE BOULEVARD IS LOWER SECTION OF RIVER OVERCROSSING. - Glendale-Hyperion Viaduct, Spanning Golden State Freeway (I-5) & Los Angeles River at Glendale Boulevard, Los Angeles, Los Angeles County, CA

  1. 5. SITE OVERVIEW, LOOKING 356 DEGREES NORTH. PART ONE OF ...

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

    5. SITE OVERVIEW, LOOKING 356 DEGREES NORTH. PART ONE OF THREE-PART PANORAMA. FROM LEFT TO RIGHT: SORENTO ROAD, MAIN HOUSE, BUNKHOUSE. - Hudson-Cippa-Wolf Ranch, Sorento Road, Sacramento, Sacramento County, CA

  2. 5 CFR Appendix I to Part 1201 - [Reserved

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 5 Administrative Personnel 3 2014-01-01 2014-01-01 false I Appendix I to Part 1201 Administrative Personnel MERIT SYSTEMS PROTECTION BOARD ORGANIZATION AND PROCEDURES PRACTICES AND PROCEDURES Appendix I to Part 1201...

  3. 5 CFR Appendix I to Part 1201 - [Reserved

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 5 Administrative Personnel 3 2011-01-01 2011-01-01 false I Appendix I to Part 1201 Administrative Personnel MERIT SYSTEMS PROTECTION BOARD ORGANIZATION AND PROCEDURES PRACTICES AND PROCEDURES Appendix I to Part 1201...

  4. 5 CFR Appendix I to Part 1201 - [Reserved

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 5 Administrative Personnel 3 2012-01-01 2012-01-01 false I Appendix I to Part 1201 Administrative Personnel MERIT SYSTEMS PROTECTION BOARD ORGANIZATION AND PROCEDURES PRACTICES AND PROCEDURES Appendix I to Part 1201...

  5. 5 CFR Appendix I to Part 1201 - [Reserved

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 5 Administrative Personnel 3 2010-01-01 2010-01-01 false I Appendix I to Part 1201 Administrative Personnel MERIT SYSTEMS PROTECTION BOARD ORGANIZATION AND PROCEDURES PRACTICES AND PROCEDURES Appendix I to Part 1201...

  6. 40 CFR Appendix L to Part 50 - Reference Method for the Determination of Fine Particulate Matter as PM2.5 in the Atmosphere

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... writing in advance of such an intended application under part 53 of this chapter. 7.3.1 Sample inlet... a reference or equivalent method application under part 53 of this chapter or in writing in advance... advance of such intended application under part 53 of this chapter. 7.4.7 Range of operational...

  7. 40 CFR Appendix L to Part 50 - Reference Method for the Determination of Fine Particulate Matter as PM2.5 in the Atmosphere

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... writing in advance of such an intended application under part 53 of this chapter. 7.3.1 Sample inlet... a reference or equivalent method application under part 53 of this chapter or in writing in advance... advance of such intended application under part 53 of this chapter. 7.4.7 Range of operational...

  8. MHD channel development, part 2

    NASA Astrophysics Data System (ADS)

    1989-12-01

    This is the final report of work performed by Avco Research Laboratory, Inc. for the U.S. Department of Energy, Pittsburgh Energy Technology Center. The overall objectives of this program were: to contribute, by appropriate systematic experimental and analytical investigations, to the engineering data base necessary for the design and construction of MHD generators at the 50 MW(sub th) and ultimately at commercial sizes; and to design and fabricate specific hardware items to be tested at a site to be specified by DOE. The program consisted of a series of related tasks, which are described in subsequent sections of this report. Section 2.0 summarizes the important results of the entire program.

  9. Petal-like Li4Ti5O12-TiO2 nanosheets as high-performance anode materials for Li-ion batteries

    NASA Astrophysics Data System (ADS)

    Wu, Feixiang; Li, Xinhai; Wang, Zhixing; Guo, Huajun

    2013-07-01

    A petal-like nanostructured Li4Ti5O12-TiO2 composite has been synthesized by a novel, simple, ultrafast, low-cost, and environmentally benign process and investigated as an anode material for Li-ion batteries. This work introduces a special solution system not slurry to synthesize a spherical flower-like Li4Ti5O12-TiO2 composite by boiling followed by solid-state calcination at a low temperature of 500 °C for 3 h. Well-crystallized Li4Ti5O12-TiO2 with relatively larger amounts (18.80 weight%) of anatase TiO2 can be obtained, which is different from conventional carbon coating, metal doping and trace TiO2 coating. Owing to the relatively low calcined temperature, the flower-like shape of the precursor powder is maintained after post-treatment. Because of the rough and porous nanostructured particles and mutually complementary intrinsic advantages between Li4Ti5O12 and TiO2, the Li4Ti5O12-TiO2 composite obtained at a relatively low calcined temperature shows excellent electrochemical performance. There are two pairs of long and flat voltage plateaus during charge and discharge at 0.1 C rate, which are not shown in other Li4Ti5O12-TiO2 composites. The initial discharge capacities are 185.5, 177.2, 167.3, 145.8, 137.7, 127.5 and 112.5 mA h g-1 at the 0.1, 0.5, 1, 2, 5, 10 and 20 C rates, respectively. After 100 cycles, the prepared Li4Ti5O12 retains 99.6%, 98.0%, 98.2% and 97.1% of its initial discharge capacities at the 2, 5, 10 and 20 C rates, respectively. After total 450 cycles at 1, 2, 5, 10 and 20 C rates, the cell returns to C/10 and still exhibits a remarkably high discharge capacity of 175.8 mA h g-1 which is 94.8% of the initial discharge capacity at 0.1 C rate.

  10. Na0.282V2O5: A high-performance cathode material for rechargeable lithium batteries and sodium batteries

    NASA Astrophysics Data System (ADS)

    Cai, Yangsheng; Zhou, Jiang; Fang, Guozhao; Cai, Gemei; Pan, Anqiang; Liang, Shuquan

    2016-10-01

    Na0.282V2O5 nanorods have been successfully prepared using a facile hydrothermal reaction followed by a calcination treatment, which is then used as a cathode for lithium batteries and sodium batteries for the first time. The crystal structure is refined to be a monoclinic lattice, which contains 3D tunnels along the b-axis. The Na ions are located inside the tunnels and form "pillar effect" to prevent the collapse of the crystal structure. As cathode material for lithium batteries, the Na0.282V2O5 nanorods deliver a high discharge specific capacity of 264, 186, 191 and 149 mA h g-1 at the current density of 50, 500, 1000 and 1500 mA g-1, respectively. The Na0.282V2O5 nanorods demonstrate the excellent cycling performance up to 400 cycles at 1 and 1.5 A g-1. Importantly, as cathode material for sodium batteries, Na0.282V2O5 exhibits superior long-term cyclic stability up to 1000 cycles at 0.3 A g-1. The results of ex-situ XRD, EIS and first-principle calculation indicate that the Na0.282V2O5 possesses good electrical conductivity and structural stability. Our work demonstrates that the Na0.282V2O5 material could be considered as a potential cathode for lithium-ion batteries, and even sodium ion batteries.

  11. 5 CFR 430.102 - Performance management.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 5 Administrative Personnel 1 2010-01-01 2010-01-01 false Performance management. 430.102 Section 430.102 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT CIVIL SERVICE REGULATIONS PERFORMANCE MANAGEMENT Performance Management § 430.102 Performance management. (a) Performance management is...

  12. 5 CFR 430.102 - Performance management.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 5 Administrative Personnel 1 2011-01-01 2011-01-01 false Performance management. 430.102 Section 430.102 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT CIVIL SERVICE REGULATIONS PERFORMANCE MANAGEMENT Performance Management § 430.102 Performance management. (a) Performance management is...

  13. 5 CFR 430.102 - Performance management.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 5 Administrative Personnel 1 2012-01-01 2012-01-01 false Performance management. 430.102 Section 430.102 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT CIVIL SERVICE REGULATIONS PERFORMANCE MANAGEMENT Performance Management § 430.102 Performance management. (a) Performance management is...

  14. 5 CFR 430.102 - Performance management.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 5 Administrative Personnel 1 2013-01-01 2013-01-01 false Performance management. 430.102 Section 430.102 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT CIVIL SERVICE REGULATIONS PERFORMANCE MANAGEMENT Performance Management § 430.102 Performance management. (a) Performance management is...

  15. 5 CFR 430.102 - Performance management.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 5 Administrative Personnel 1 2014-01-01 2014-01-01 false Performance management. 430.102 Section 430.102 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT CIVIL SERVICE REGULATIONS PERFORMANCE MANAGEMENT Performance Management § 430.102 Performance management. (a) Performance management is...

  16. A portable Ka-band front-end test package for beam-waveguide antenna performance evaluation. Part 2: Tests on the antenna

    NASA Technical Reports Server (NTRS)

    Otoshi, T. Y.; Stewart, S. R.; Franco, M. M.

    1991-01-01

    In part one of this article, a description was given of a Ka-band test package developed to enable testing of the Deep Space Station (DDS) 13 34-m beam-waveguide (BWG) antenna at 32 GHz. Test results were given for the Ka-band test package in an on-the-ground test configuration. This article is a companion article concerned with Ka-band test results for the test package in an on-the-antenna test configuration. Included are Ka-band zenith noise-temperature values, tipping-curve data, and subreflector test results obtained at the Cassegrain focal point, as well as at the final BWG focal point (located in a subterranean pedestal room). Test results show that, through the use of the Ka-band test package, the BWG antenna performance was successfully evaluated at Ka-band. The Ka-band test package operated well in all of the different antenna test configurations.

  17. Catalytic performance of V2O5-MoO3/γ-Al2O3 catalysts for partial oxidation of n-hexane1

    NASA Astrophysics Data System (ADS)

    Mahmoudian, R.; Khodadadi, Z.; Mahdavi, Vahid; Salehi, Mohammed

    2016-01-01

    In the current study, a series of V2O5-MoO3 catalyst supported on γ-Al2O3 with various V2O5 and MoO3 loadings was prepared by wet impregnation technique. The characterization of prepared catalysts includes BET surface area, powder X-ray diffraction (XRD), and oxygen chemisorptions. The partial oxidation of n-hexane by air over V2O5-MoO3/γ-Al2O3 catalysts was carried out under flow condition in a fixed bed glass reactor. The effect of V2O5 loading, temperature, MoO3 loading, and n-hexane LHSV on the n-hexane conversion and the product selectivity were investigated. The partial oxygenated products of n-hexane oxidation were ethanol, acetic anhydride, acetic acid, and acetaldehyde. The 10% V2O5-1%MoO3/γ-Al2O3 was found in most active and selective catalyst during partial oxidation of n-hexane. The results indicated that by increasing the temperature, the n-hexane conversion increases as well, although the selectivity of the products passes through a maximum by increasing the temperature.

  18. Supersonic Disk Gap Band Parachute Performance in the Wake of a Viking-Type Aeroshell from Mach 2 to 2.5

    NASA Technical Reports Server (NTRS)

    Sengupta, Anita; Roeder, James; Kelsch, Richard; Wernet, Mark; Machalick, Walt; Reuter, James; Witkowski, Al

    2008-01-01

    Supersonic wind tunnel testing of 0.813 m diameter Disk-Gap-Band parachutes is being conducted in the NASA Glenn Research Center (GRC) 10' x 10' wind-tunnel. The tests are conducted in support of the Mars Science Laboratory Parachute Decelerator System development and qualification. Four percent of full-scale parachutes were constructed similarly to the flight-article in material and construction techniques. The parachutes are attached to a 4% scale MSL entry-vehicle to simulate the free-flight configuration. The parachutes are tested from Mach 2 to 2.5 over a Reynolds number (Re) range of 1 to 3 x 10(exp 6), representative of the MSL deployment envelope. Constrained and unconstrained test configurations are investigated to quantify the effects of parachute trim, suspension line interaction, and alignment with the capsule wake. The parachute is constrained horizontally through the vent region, to measure canopy breathing and wake interaction for fixed trim angles of 0 and 10 degrees from the velocity vector. In the unconstrained configuration the parachute is permitted to trim and cone, similar to the free-flight varying its alignment relative to the entry-vehicle wake. Test diagnostics were chosen to quantify parachute performance and to provide insight into the flow field structure. An in-line load cell provided measurement of unsteady and mean drag as a function of Mach and Re. High-speed shadowgraph video of the upstream parachute flow field was used to capture bow-shock motion and stand of distance. Particle image velocimetry of the upstream parachute flow field provides spatially and temporally resolved measurement velocity and turbulent statistics. Multiple high speed video views of targets placed in the interior of the canopy enable photo-grammetric measurement of the fabric motion in time and space from reflective. High speed video is also used to document the supersonic inflation and measure trim angle, projected area, and frequency of area oscillations.

  19. 5-Lipoxygenase-activating protein (FLAP) inhibitors. Part 4: development of 3-[3-tert-butylsulfanyl-1-[4-(6-ethoxypyridin-3-yl)benzyl]-5-(5-methylpyridin-2-ylmethoxy)-1H-indol-2-yl]-2,2-dimethylpropionic acid (AM803), a potent, oral, once daily FLAP inhibitor.

    PubMed

    Stock, Nicholas S; Bain, Gretchen; Zunic, Jasmine; Li, Yiwei; Ziff, Jeannie; Roppe, Jeffrey; Santini, Angelina; Darlington, Janice; Prodanovich, Pat; King, Christopher D; Baccei, Christopher; Lee, Catherine; Rong, Haojing; Chapman, Charles; Broadhead, Alex; Lorrain, Dan; Correa, Lucia; Hutchinson, John H; Evans, Jilly F; Prasit, Peppi

    2011-12-08

    The potent 5-lipoxygenase-activating protein (FLAP) inhibitor 3-[3-tert-butylsulfanyl-1-[4-(6-ethoxypyridin-3-yl)benzyl]-5-(5-methylpyridin-2-ylmethoxy)-1H-indol-2-yl]-2,2-dimethylpropionic acid 11cc is described (AM803, now GSK2190915). Building upon AM103 (1) (Hutchinson et al. J. Med Chem.2009, 52, 5803-5815; Stock et al. Bioorg. Med. Chem. Lett. 2010, 20, 213-217; Stock et al. Bioorg. Med. Chem. Lett.2010, 20, 4598-4601), SAR studies centering around the pyridine moiety led to the discovery of compounds that exhibit significantly increased potency in a human whole blood assay measuring LTB(4) inhibition with longer drug preincubation times (15 min vs 5 h). Further studies identified 11cc with a potency of 2.9 nM in FLAP binding, an IC(50) of 76 nM for inhibition of LTB(4) in human blood (5 h incubation) and excellent preclinical toxicology and pharmacokinetics in rat and dog. 11cc also demonstrated an extended pharmacodynamic effect in a rodent bronchoalveolar lavage (BAL) model. This compound has successfully completed phase 1 clinical studies in healthy volunteers and is currently undergoing phase 2 trials in asthmatic patients.

  20. Evaluation of potential severe accidents during low power and shutdown operations at Grand Gulf, Unit 1: Analysis of core damage frequency from internal events for Plant Operational State 5 during a refueling outage. Volume 2, Part 3: Internal Events Appendices I and J

    SciTech Connect

    Yakle, J.; Darby, J.; Whitehead, D.; Staple, B.

    1994-06-01

    This report provides supporting documentation for various tasks associated with the performance of the probablistic risk assessment for Plant Operational State 5 during a refueling outage at Grand Gulf, Unit 1 as documented in Volume 2, Part 1 of NUREG/CR-6143.

  1. PERFORMANCE AUDITING OF A HUMAN AIR POLLUTION EXPOSURE SYSTEM FOR COARSE PARTICULATE MATTER (PM2.5-10)

    EPA Science Inventory

    Databases derived from human health effects research play a vital role in setting environmental standards. An underlying assumption in using these databases for standard setting purposes is that they are of adequate quality. The performance auditing program described in this ma...

  2. Field performance of a semi-continuous monitor for ambient PM2.5 water-soluble inorganic ions and gases at a suburban site

    NASA Astrophysics Data System (ADS)

    Young, Li-Hao; Li, Chiao-Hsin; Lin, Ming-Yeng; Hwang, Bing-Fang; Hsu, Hui-Tsung; Chen, Yu-Cheng; Jung, Chau-Ren; Chen, Kuan-Chi; Cheng, Dung-Hung; Wang, Ven-Shing; Chiang, Hung-Che; Tsai, Perng-Jy

    2016-11-01

    To reduce sampling artifacts and to improve time-resolved measurements of inorganic aerosol system, a recently commercialized semi-continuous In-situ Gas and Aerosol Composition (IGAC) monitoring system was evaluated against a reference annular denuder system (ADS; denuder/two-stage filter pack) at a suburban site over a year, during which the average PM2.5 was 37.0 ± 24.8 μg/m3. A suite of eight ions SO42-, NO3-, Cl-, NH4+, Na+, K+, Ca2+ and Mg2+ and two gases SO2 and NH3 were the target species. In comparison to the reference ADS method, the IGAC performed well in measuring the major ions SO42-, NO3- and NH4+, and the SO2. For those species, the linear slopes, intercepts and R2 values between the two methods all passed the performance evaluation criteria outlined by earlier similar studies. The performance of IGAC on Cl-, Na+, K+ and NH3 was marginally acceptable, whereas Ca2+ and Mg2+ could not be properly evaluated due to the low concentrations (<0.2 μg/m3) and hence inadequate amount of sample size. The ionic balance of the hourly IGAC samples averaged very close to unity, as did the daily ADS samples, though the former was considerably more variable than the latter. The overall performance of the IGAC has been shown to be comparable to other similar monitors and its improvements are discussed.

  3. 34 CFR 5.2 - Definitions.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 34 Education 1 2012-07-01 2012-07-01 false Definitions. 5.2 Section 5.2 Education Office of the Secretary, Department of Education AVAILABILITY OF INFORMATION TO THE PUBLIC General Provisions § 5.2 Definitions. As used in this part: (a) Act or FOIA means the Freedom of Information Act, as amended, 5...

  4. Effects of the 5-HT2A agonist psilocybin on mismatch negativity generation and AX-continuous performance task: implications for the neuropharmacology of cognitive deficits in schizophrenia.

    PubMed

    Umbricht, Daniel; Vollenweider, Franz X; Schmid, Liselotte; Grübel, Claudia; Skrabo, Anja; Huber, Theo; Koller, Rene

    2003-01-01

    Previously the NMDA (N-methyl-D-aspartate) receptor (NMDAR) antagonist ketamine was shown to disrupt generation of the auditory event-related potential (ERP) mismatch negativity (MMN) and the performance of an 'AX'-type continuous performance test (AX-CPT)--measures of auditory and visual context-dependent information processing--in a similar manner as observed in schizophrenia. This placebo-controlled study investigated effects of the 5-HT(2A) receptor agonist psilocybin on the same measures in 18 healthy volunteers. Psilocybin administration induced significant performance deficits in the AX-CPT, but failed to reduce MMN generation significantly. These results indirectly support evidence that deficient MMN generation in schizophrenia may be a relatively distinct manifestation of deficient NMDAR functioning. In contrast, secondary pharmacological effects shared by NMDAR antagonists and the 5-HT(2A) agonist (ie disruption of glutamatergic neurotransmission) may be the mechanism underlying impairments in AX-CPT performance observed during both psilocybin and ketamine administration. Comparable deficits in schizophrenia may result from independent dysfunctions of 5-HT(2A) and NMDAR-related neurotransmission.

  5. VIEWCACHE: An incremental pointer-base access method for distributed databases. Part 1: The universal index system design document. Part 2: The universal index system low-level design document. Part 3: User's guide. Part 4: Reference manual. Part 5: UIMS test suite

    NASA Technical Reports Server (NTRS)

    Kelley, Steve; Roussopoulos, Nick; Sellis, Timos

    1992-01-01

    The goal of the Universal Index System (UIS), is to provide an easy-to-use and reliable interface to many different kinds of database systems. The impetus for this system was to simplify database index management for users, thus encouraging the use of indexes. As the idea grew into an actual system design, the concept of increasing database performance by facilitating the use of time-saving techniques at the user level became a theme for the project. This Final Report describes the Design, the Implementation of UIS, and its Language Interfaces. It also includes the User's Guide and the Reference Manual.

  6. Tricyclic 1,5-naphthyridinone oxabicyclooctane-linked novel bacterial topoisomerase inhibitors as broad-spectrum antibacterial agents-SAR of left-hand-side moiety (Part-2).

    PubMed

    Singh, Sheo B; Kaelin, David E; Wu, Jin; Miesel, Lynn; Tan, Christopher M; Black, Todd; Nargund, Ravi; Meinke, Peter T; Olsen, David B; Lagrutta, Armando; Lu, Jun; Patel, Sangita; Rickert, Keith W; Smith, Robert F; Soisson, Stephen; Sherer, Edward; Joyce, Leo A; Wei, Changqing; Peng, Xuanjia; Wang, Xiu; Fukuda, Hideyuki; Kishii, Ryuta; Takei, Masaya; Takano, Hisashi; Shibasaki, Mitsuhito; Yajima, Masanobu; Nishimura, Akinori; Shibata, Takeshi; Fukuda, Yasumichi

    2015-05-01

    Novel bacterial topoisomerase inhibitors (NBTIs) represent a new class of broad-spectrum antibacterial agents targeting bacterial Gyrase A and ParC and have potential utility in combating antibiotic resistance. A series of novel oxabicyclooctane-linked NBTIs with new tricyclic-1,5-naphthyridinone left hand side moieties have been described. Compounds with a (R)-hydroxy-1,5-naphthyridinone moiety (7) showed potent antibacterial activity (e.g., Staphylococcus aureus MIC 0.25 μg/mL), acceptable Gram-positive and Gram-negative spectrum with rapidly bactericidal activity. The compound 7 showed intravenous and oral efficacy (ED50) at 3.2 and 27 mg/kg doses, respectively, in a murine model of bacteremia. Most importantly they showed significant attenuation of functional hERG activity (IC50 >170 μM). In general, lower logD attenuated hERG activity but also reduced Gram-negative activity. The co-crystal structure of a hydroxy-tricyclic NBTI bound to a DNA-gyrase complex exhibited a binding mode that show enantiomeric preference for R isomer and explains the activity and SAR. The discovery, synthesis, SAR and X-ray crystal structure of the left-hand-side tricyclic 1,5-naphthyridinone based oxabicyclooctane linked NBTIs are described.

  7. Theorem of Mystery: Part 2

    ERIC Educational Resources Information Center

    Lopez-Real, Francis

    2008-01-01

    The Varignon parallelogram has always provided a simple geometric investigation for students that gives rise to a surprising result. It is possible to extend the Varignon investigation by looking at special quadrilaterals or by considering different dissection points along the sides. In the second of his two-part series, the author offers some…

  8. Understanding quantitative research: part 2.

    PubMed

    Hoare, Zoë; Hoe, Juanita

    This article, which is the second in a two-part series, provides an introduction to understanding quantitative research, basic statistics and terminology used in research articles. Understanding statistical analysis will ensure that nurses can assess the credibility and significance of the evidence reported. This article focuses on explaining common statistical terms and the presentation of statistical data in quantitative research.

  9. 47 CFR 90.5 - Other applicable rule parts.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) SAFETY AND SPECIAL RADIO SERVICES PRIVATE LAND MOBILE RADIO SERVICES General Information § 90.5 Other applicable rule parts. Other Commission rule parts... industrial, scientific, and medical (ISM) devices that are not intended for radio communication, (h) Part...

  10. 14 CFR 150.5 - Limitations of this part.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ...) AIRPORTS AIRPORT NOISE COMPATIBILITY PLANNING General Provisions § 150.5 Limitations of this part. (a) Pursuant to 49 U.S.C. 47501 et seq., this part provides for airport noise compatibility planning and land... of a noise compatibility program under this part is neither a commitment by the FAA to...

  11. 14 CFR 150.5 - Limitations of this part.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ...) AIRPORTS AIRPORT NOISE COMPATIBILITY PLANNING General Provisions § 150.5 Limitations of this part. (a) Pursuant to 49 U.S.C. 47501 et seq., this part provides for airport noise compatibility planning and land... of a noise compatibility program under this part is neither a commitment by the FAA to...

  12. The effect of the preparation method of Nb2O5 oxide influences the performance of the photocatalytic activity

    NASA Astrophysics Data System (ADS)

    Raba, A. M.; Barba-Ortega, J.; Joya, M. R.

    2015-06-01

    In this paper, we present the experimental results of the photocatalytic properties evaluation of the niobium pentoxide semiconductor oxide and its performance in processes photoinduced of Rhodamine B and Atrazine degradation, under visible light irradiation. The sample photocatalysts were synthesized via pechini method. The nanoparticles structure of the samples was studied by X-ray diffraction, Brunauer-Emmett-Teller, Raman spectroscopy, UV-Vis and scanning and transmission electron microscopy. The increase in the calcination temperature during the synthesis resulted in enhanced crystallization, but decreased mesoporosity of the samples.

  13. A Safe High-Performance All-Solid-State Lithium-Vanadium Battery with a Freestanding V2O5 Nanowire Composite Paper Cathode.

    PubMed

    Zhang, Yue; Lai, Jingyuan; Gong, Yudong; Hu, Yongming; Liu, Jin; Sun, Chunwen; Wang, Zhong Lin

    2016-12-21

    The electronic conductivity and structural stability are still challenges for vanadium pentoxide (V2O5) as cathode materials in batteries. Here, we report a V2O5 nanowire-reduced graphene oxide (rGO) composite paper for direct use as a cathode without any additives for high-temperature and high-safety solid polymer electrolyte [PEO-MIL-53(Al)-LiTFSI] lithium-vanadium batteries. The batteries can show a fast and stable lithium-ion-storage performance in a wide voltage window of 1.0-4.0 V versus Li(+)/Li at 80 °C, in which with an average capacity of 329.2 mAh g(-1) at 17 mA g(-1) and a stable cycling performance over 40 cycles are achieved. The excellent electrochemical performance is mainly ascribed to integration of the electronic conductivity of rGO and interconnected networks of the V2O5 nanowires and solid electrolyte. This is a promising lithium battery for flexible and highly safe energy-storage devices.

  14. 5 CFR 534.405 - Performance awards.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 5 Administrative Personnel 1 2011-01-01 2011-01-01 false Performance awards. 534.405 Section 534... SYSTEMS Pay and Performance Awards Under the Senior Executive Service § 534.405 Performance awards. (a) This section covers the payment of performance awards to career appointees in the Senior...

  15. 5 CFR 430.308 - Rating performance.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 5 Administrative Personnel 1 2011-01-01 2011-01-01 false Rating performance. 430.308 Section 430.308 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT CIVIL SERVICE REGULATIONS PERFORMANCE MANAGEMENT Managing Senior Executive Performance § 430.308 Rating performance. (a) Initial summary...

  16. 5 CFR 534.405 - Performance awards.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 5 Administrative Personnel 1 2010-01-01 2010-01-01 false Performance awards. 534.405 Section 534... SYSTEMS Pay and Performance Awards Under the Senior Executive Service § 534.405 Performance awards. (a) This section covers the payment of performance awards to career appointees in the Senior...

  17. 5 CFR 430.308 - Rating performance.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 5 Administrative Personnel 1 2010-01-01 2010-01-01 false Rating performance. 430.308 Section 430.308 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT CIVIL SERVICE REGULATIONS PERFORMANCE MANAGEMENT Managing Senior Executive Performance § 430.308 Rating performance. (a) Initial summary...

  18. 5 CFR 9901.342 - Performance payouts.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 5 Administrative Personnel 3 2011-01-01 2011-01-01 false Performance payouts. 9901.342 Section... PERSONNEL SYSTEM (NSPS) Pay and Pay Administration Performance-Based Pay § 9901.342 Performance payouts. (a) Overview. (1) The NSPS pay system will be a performance-based pay system and will result in a...

  19. 5 CFR 430.306 - Monitoring performance.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 5 Administrative Personnel 1 2010-01-01 2010-01-01 false Monitoring performance. 430.306 Section 430.306 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT CIVIL SERVICE REGULATIONS PERFORMANCE MANAGEMENT Managing Senior Executive Performance § 430.306 Monitoring performance. (a) Supervisors...

  20. 5 CFR 430.306 - Monitoring performance.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 5 Administrative Personnel 1 2011-01-01 2011-01-01 false Monitoring performance. 430.306 Section 430.306 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT CIVIL SERVICE REGULATIONS PERFORMANCE MANAGEMENT Managing Senior Executive Performance § 430.306 Monitoring performance. (a) Supervisors...

  1. The Inconvenient Truth. Part 2

    SciTech Connect

    Athanasiou, T.

    2007-01-15

    Essay-type of publication on what should happen next after Al Gore's presentations on the Inconvenient Truth about the impacts of climate change. The essay states in the first lines: 'We've seen the movie, so we know the first part - we're in trouble deep. And it's time, past time, for at least some of us to go beyond warning to planning, to start talking seriously about a global crash program to stabilize the climate.

  2. [Environmental investigation of ground water contamination at Wright-Patterson Air Force Base, Ohio]. Volume 5, Appendix A, Part 2, Field Investigation report

    SciTech Connect

    Not Available

    1992-03-01

    This report contains information related to the sampling and chemical analysis of ground water at the Wright-Patterson Air Force Base. It is part of a field investigation of ground water contamination.

  3. Activities: Geometric Transformations. Part 2.

    ERIC Educational Resources Information Center

    Eddins, Susan K.; And Others

    1994-01-01

    Presents a lesson that connects basic transformational concepts with transformations on a Cartesian-coordinate system, culminating with the application of matrix operations to perform geometric transformations. Includes reproducible student worksheets and assessment activities. (MKR)

  4. 45 CFR Appendix C to Part 5b... - [Reserved

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 45 Public Welfare 1 2010-10-01 2010-10-01 false C Appendix C to Part 5b-Delegations of Authority Public Welfare DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL ADMINISTRATION PRIVACY ACT REGULATIONS Appendix C to Part 5b—Delegations of...

  5. 45 CFR Appendix C to Part 5b... - [Reserved

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 45 Public Welfare 1 2012-10-01 2012-10-01 false C Appendix C to Part 5b-Delegations of Authority Public Welfare DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL ADMINISTRATION PRIVACY ACT REGULATIONS Appendix C to Part 5b—Delegations of Authority...

  6. 5 CFR 9701.409 - Rating and rewarding performance.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... performance. (a)(1) Except as provided in paragraphs (a)(2) and (3) of this section, each DHS performance... 5 Administrative Personnel 3 2013-01-01 2013-01-01 false Rating and rewarding performance. 9701... successful performance. (2) For employees in an Entry/Developmental band, the DHS performance...

  7. The Prediction of Long-Term Coating Performance from Short-Term Electrochemical Data. Part 2; Comparison of Electrochemical Data to Field Exposure Results for Coatings on Steel

    NASA Technical Reports Server (NTRS)

    Contu, F.; Taylor, S. R.; Calle, L. M.; Hintze, P. E.; Curran, J. P.; Li, W.

    2009-01-01

    The pace of coatings development is limited by the time required to assess their corrosion protection properties. This study takes a step f orward from Part I in that it correlates the corrosion performance of organic coatings assessed by a series of short-term electrochemical measurement with 18-month beachside exposure results of duplicate pan els. A series of 19 coating systems on A36 steel substrates were test ed in a completely blind study using the damage tolerance test (DTT). In the DTT, a through-film pinhole defect is created, and the electro chemical characteristics of the defect are then monitored over the ne xt 4 to 7 days while immersed in 0.SM NaCl. The open circuit potentia l, anodic potentiostatic polarization tests and electrochemical imped ance spectroscopy were used to study the corrosion behavior of the co ating systems. The beachside exposure tests were conducted at the Ken nedy Space Center according to ASTM D610-01. It was found that for 79 % of the coatings systems examined, the 18 month beachside exposure r esults could be predicted by two independent laboratory tests obtained within 7 days.

  8. Quality evaluation of Hypericum ascyron extract by two-dimensional high-performance liquid chromatography coupled with the colorimetric 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide method.

    PubMed

    Li, Xiu-Mei; Luo, Xue-Gang; Zhang, Chao-Zheng; Wang, Nan; Zhang, Tong-Cun

    2015-02-01

    In this paper, a heart-cutting two-dimensional high-performance liquid chromatography coupled with the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) method was established for controlling the quality of different batches of Hypericum ascyron extract for the first time. In comparison with the common one-dimensional fingerprint, the second-dimensional fingerprint compiled additional spectral data and was hence more informative. The quality of H. ascyron extract was further evaluated by similarity measures and the same results were achieved, the correlation coefficients of the similarity of ten batches of H. ascyron extract were >0.99. Furthermore, we also evaluated the quality of the ten batches of H. ascyron extract by antibacterial activity. The result demonstrated that the quality of the ten batches of H. ascyron extract was not significantly different by MTT. Finally, we demonstrated that the second-dimensional fingerprint coupled with the MTT method was a more powerful tool to characterize the quality of samples of batch to batch. Therefore the proposed method could be used to comprehensively conduct the quality control of traditional Chinese medicines.

  9. Repair Types, Procedures - Part 2

    DTIC Science & Technology

    2010-05-01

    acceptable only if at least one undamaged flange remains in the existing internal structure. Sandwich repairs using extrusions or formed parts are better...easily be affected by bridging the damage with two L-angle extrusions fastened together through undamaged portions of the existing rod to form a ‘splint...Cell Repairs Rubber fuel bladders with damage less than 3 inches/7.6 cm can be repaired in a manner similar to patching tire inner-tubes using Buna-N

  10. 40 CFR Appendix O to Part 50 - Reference Method for the Determination of Coarse Particulate Matter as PM10-2.5 in the Atmosphere

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... volume of air sampled by each sampler is determined by the sampler from the measured flow rate at local... Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS NATIONAL PRIMARY AND SECONDARY AMBIENT AIR QUALITY STANDARDS Pt. 50, App. O Appendix O to Part 50—Reference Method for the Determination...

  11. 40 CFR Appendix O to Part 50 - Reference Method for the Determination of Coarse Particulate Matter as PM10-2.5 in the Atmosphere

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... volume of air sampled by each sampler is determined by the sampler from the measured flow rate at local... Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS NATIONAL PRIMARY AND SECONDARY AMBIENT AIR QUALITY STANDARDS Pt. 50, App. O Appendix O to Part 50—Reference Method for the Determination...

  12. 13 CFR 308.2 - Performance awards.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 13 Business Credit and Assistance 1 2011-01-01 2011-01-01 false Performance awards. 308.2 Section... PERFORMANCE INCENTIVES § 308.2 Performance awards. (a) A Recipient of Investment Assistance under parts 305 or 307 of this chapter may receive a performance award in connection with an Investment made on or...

  13. 44 CFR 5.2 - Application.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 44 Emergency Management and Assistance 1 2010-10-01 2010-10-01 false Application. 5.2 Section 5.2 Emergency Management and Assistance FEDERAL EMERGENCY MANAGEMENT AGENCY, DEPARTMENT OF HOMELAND SECURITY GENERAL PRODUCTION OR DISCLOSURE OF INFORMATION General Provisions § 5.2 Application. This part applies...

  14. Performance degradation studies on an poly 2,5-benzimidazole high-temperature proton exchange membrane fuel cell using an accelerated degradation technique

    NASA Astrophysics Data System (ADS)

    Jung, Guo-Bin; Chen, Hsin-Hung; Yan, Wei-Mon

    2014-02-01

    In this work, the performance degradation of a poly 2,5-benzimidazole (ABPBI) based high-temperature proton exchange membrane fuel cell (HT-PEMFC) was examined using an accelerated degradation technique (ADT). Experiments using an ADT with 30 min intervals were performed by applying 1.5 V to a membrane electrode assembly (MEA) with hydrogen and nitrogen feeding to the anode and cathode, respectively, to simulate the high voltage generated during fuel cell shutdown and restart. The characterization of the MEAs was performed using in-situ and ex-situ electrochemical methods, such as polarization curves, AC impedance, and cyclic voltammetry (CV), and TEM imaging before and after the ADT experiments. The measured results demonstrated that the ADT testing could be used to dramatically reduce the duration of the degradation. The current output at 0.4 V decreased by 48% after performing ADT testing for 30 min. From the AC impedance, CV and RTGA measurements, the decline in cell performance was found to be primarily due to corrosion and thinning of the catalyst layer (or carbon support) during the first 30 min, leading to the dissolution and agglomeration of the platinum catalyst.

  15. Compliant Robotic Structures. Part 2

    DTIC Science & Technology

    1986-07-01

    in diameter. Gordius (Figure 4) and Ascaris (Figure 5) represent two phyla of worms, Nematomorpha and Nematoda respectively, whose members function...Jean L. ( 1974), Ultrastructural features of a gordian worm ( Nematomorpha ), Jlournaol of Ultrastructure R’esearch, 46: 351-374. Freeman, W.H., and

  16. F-5-L Boat Seaplane : performance characteristics

    NASA Technical Reports Server (NTRS)

    Diehl, W S

    1922-01-01

    Performance characteristics for the F-5-L Boat Seaplane are given. Characteristic curves for the RAF-6 airfoil and the F-5-L wings, parasite resistance and velocity data, engine and propeller characteristics, effective and maximum horsepower, and cruising performance are discussed.

  17. High Performance Liquid Chromatography/Video Fluorometry. Part I. Instrumentation.

    DTIC Science & Technology

    1981-09-30

    High Performance Liquid Chromatography /Video...PERIOD COVERED High Performance Liquid Chromatography /Video .. / Fluorometry. Part I. Instrumentation. . Interim/ echnicaliepart,. 6. PERFORMING ORG...34Entered SECURITY CLASSIFICATION OF THIS OlAGE (When Data Entered) II1| III I I I I E I II ... .. High Performance Liquid Chromatography

  18. 5 CFR 430.206 - Planning performance.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 5 Administrative Personnel 1 2011-01-01 2011-01-01 false Planning performance. 430.206 Section 430.206 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT CIVIL SERVICE REGULATIONS PERFORMANCE MANAGEMENT Performance Appraisal for General Schedule, Prevailing Rate, and Certain Other Employees §...

  19. 5 CFR 301.303 - Performance appraisal.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 5 Administrative Personnel 1 2011-01-01 2011-01-01 false Performance appraisal. 301.303 Section....303 Performance appraisal. As soon as practicable, but beginning not later than January 1, 1984, overseas agencies are required to evaluate the performance of employees who serve under overseas local...

  20. 5 CFR 430.208 - Rating performance.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 5 Administrative Personnel 1 2010-01-01 2010-01-01 false Rating performance. 430.208 Section 430.208 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT CIVIL SERVICE REGULATIONS PERFORMANCE MANAGEMENT Performance Appraisal for General Schedule, Prevailing Rate, and Certain Other Employees §...

  1. 5 CFR 430.208 - Rating performance.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 5 Administrative Personnel 1 2011-01-01 2011-01-01 false Rating performance. 430.208 Section 430.208 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT CIVIL SERVICE REGULATIONS PERFORMANCE MANAGEMENT Performance Appraisal for General Schedule, Prevailing Rate, and Certain Other Employees §...

  2. 5 CFR 430.207 - Monitoring performance.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 5 Administrative Personnel 1 2011-01-01 2011-01-01 false Monitoring performance. 430.207 Section 430.207 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT CIVIL SERVICE REGULATIONS PERFORMANCE MANAGEMENT Performance Appraisal for General Schedule, Prevailing Rate, and Certain Other Employees §...

  3. 5 CFR 301.303 - Performance appraisal.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 5 Administrative Personnel 1 2010-01-01 2010-01-01 false Performance appraisal. 301.303 Section....303 Performance appraisal. As soon as practicable, but beginning not later than January 1, 1984, overseas agencies are required to evaluate the performance of employees who serve under overseas local...

  4. 5 CFR 430.207 - Monitoring performance.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 5 Administrative Personnel 1 2010-01-01 2010-01-01 false Monitoring performance. 430.207 Section 430.207 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT CIVIL SERVICE REGULATIONS PERFORMANCE MANAGEMENT Performance Appraisal for General Schedule, Prevailing Rate, and Certain Other Employees §...

  5. 5 CFR 430.206 - Planning performance.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 5 Administrative Personnel 1 2010-01-01 2010-01-01 false Planning performance. 430.206 Section 430.206 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT CIVIL SERVICE REGULATIONS PERFORMANCE... Planning performance. (a) Appraisal period. (1) An appraisal program shall designate an official...

  6. 16 CFR Figure 5 to Part 1512 - Typical Handbrake Actuator Showing Grip Dimension

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 16 Commercial Practices 2 2013-01-01 2013-01-01 false Typical Handbrake Actuator Showing Grip Dimension 5 Figure 5 to Part 1512 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION FEDERAL HAZARDOUS SUBSTANCES ACT REGULATIONS REQUIREMENTS FOR BICYCLES Pt. 1512, Fig. 5 Figure 5 to Part 1512—Typical...

  7. 16 CFR Figure 5 to Part 1633 - Details of Burner Stand-off

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 16 Commercial Practices 2 2012-01-01 2012-01-01 false Details of Burner Stand-off 5 Figure 5 to Part 1633 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION FLAMMABLE FABRICS ACT REGULATIONS STANDARD FOR THE FLAMMABILITY (OPEN FLAME) OF MATTRESS SETS Pt.1633, Fig. 5 Figure 5 to Part...

  8. 16 CFR Figure 5 to Part 1610 - An Example of a Typical Gas Shield

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 16 Commercial Practices 2 2014-01-01 2014-01-01 false An Example of a Typical Gas Shield 5 Figure 5 to Part 1610 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION FLAMMABLE FABRICS ACT REGULATIONS STANDARD FOR THE FLAMMABILITY OF CLOTHING TEXTILES Pt. 1610, Fig. 5 Figure 5 to Part...

  9. 16 CFR Figure 5 to Part 1512 - Typical Handbrake Actuator Showing Grip Dimension

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 16 Commercial Practices 2 2010-01-01 2010-01-01 false Typical Handbrake Actuator Showing Grip Dimension 5 Figure 5 to Part 1512 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION FEDERAL HAZARDOUS SUBSTANCES ACT REGULATIONS REQUIREMENTS FOR BICYCLES Pt. 1512, Fig. 5 Figure 5 to Part 1512—Typical...

  10. 16 CFR Figure 5 to Part 1512 - Typical Handbrake Actuator Showing Grip Dimension

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 16 Commercial Practices 2 2012-01-01 2012-01-01 false Typical Handbrake Actuator Showing Grip Dimension 5 Figure 5 to Part 1512 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION FEDERAL HAZARDOUS SUBSTANCES ACT REGULATIONS REQUIREMENTS FOR BICYCLES Pt. 1512, Fig. 5 Figure 5 to Part 1512—Typical...

  11. 16 CFR Figure 5 to Part 1633 - Details of Burner Stand-off

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 16 Commercial Practices 2 2014-01-01 2014-01-01 false Details of Burner Stand-off 5 Figure 5 to Part 1633 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION FLAMMABLE FABRICS ACT REGULATIONS STANDARD FOR THE FLAMMABILITY (OPEN FLAME) OF MATTRESS SETS Pt. 1633, Fig. 5 Figure 5 to Part...

  12. 16 CFR Figure 5 to Part 1610 - An Example of a Typical Gas Shield

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 16 Commercial Practices 2 2011-01-01 2011-01-01 false An Example of a Typical Gas Shield 5 Figure 5 to Part 1610 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION FLAMMABLE FABRICS ACT REGULATIONS STANDARD FOR THE FLAMMABILITY OF CLOTHING TEXTILES Pt.1610, Fig. 5 Figure 5 to Part...

  13. 16 CFR Figure 5 to Part 1610 - An Example of a Typical Gas Shield

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 16 Commercial Practices 2 2012-01-01 2012-01-01 false An Example of a Typical Gas Shield 5 Figure 5 to Part 1610 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION FLAMMABLE FABRICS ACT REGULATIONS STANDARD FOR THE FLAMMABILITY OF CLOTHING TEXTILES Pt.1610, Fig. 5 Figure 5 to Part...

  14. 16 CFR Figure 5 to Part 1633 - Details of Burner Stand-off

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 16 Commercial Practices 2 2013-01-01 2013-01-01 false Details of Burner Stand-off 5 Figure 5 to Part 1633 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION FLAMMABLE FABRICS ACT REGULATIONS STANDARD FOR THE FLAMMABILITY (OPEN FLAME) OF MATTRESS SETS Pt. 1633, Fig. 5 Figure 5 to Part...

  15. 16 CFR Figure 5 to Part 1512 - Typical Handbrake Actuator Showing Grip Dimension

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 16 Commercial Practices 2 2011-01-01 2011-01-01 false Typical Handbrake Actuator Showing Grip Dimension 5 Figure 5 to Part 1512 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION FEDERAL HAZARDOUS SUBSTANCES ACT REGULATIONS REQUIREMENTS FOR BICYCLES Pt. 1512, Fig. 5 Figure 5 to Part 1512—Typical...

  16. 16 CFR Figure 5 to Part 1512 - Typical Handbrake Actuator Showing Grip Dimension

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 16 Commercial Practices 2 2014-01-01 2014-01-01 false Typical Handbrake Actuator Showing Grip Dimension 5 Figure 5 to Part 1512 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION FEDERAL HAZARDOUS SUBSTANCES ACT REGULATIONS REQUIREMENTS FOR BICYCLES Pt. 1512, Fig. 5 Figure 5 to Part 1512—Typical...

  17. 16 CFR Figure 5 to Part 1610 - An Example of a Typical Gas Shield

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 16 Commercial Practices 2 2010-01-01 2010-01-01 false An Example of a Typical Gas Shield 5 Figure 5 to Part 1610 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION FLAMMABLE FABRICS ACT REGULATIONS STANDARD FOR THE FLAMMABILITY OF CLOTHING TEXTILES Pt.1610, Fig. 5 Figure 5 to Part...

  18. 16 CFR Figure 5 to Part 1633 - Details of Burner Stand-off

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 16 Commercial Practices 2 2011-01-01 2011-01-01 false Details of Burner Stand-off 5 Figure 5 to Part 1633 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION FLAMMABLE FABRICS ACT REGULATIONS STANDARD FOR THE FLAMMABILITY (OPEN FLAME) OF MATTRESS SETS Pt.1633, Fig. 5 Figure 5 to Part...

  19. 16 CFR Figure 5 to Part 1610 - An Example of a Typical Gas Shield

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 16 Commercial Practices 2 2013-01-01 2013-01-01 false An Example of a Typical Gas Shield 5 Figure 5 to Part 1610 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION FLAMMABLE FABRICS ACT REGULATIONS STANDARD FOR THE FLAMMABILITY OF CLOTHING TEXTILES Pt. 1610, Fig. 5 Figure 5 to Part...

  20. 16 CFR Figure 5 to Part 1633 - Details of Burner Stand-off

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 16 Commercial Practices 2 2010-01-01 2010-01-01 false Details of Burner Stand-off 5 Figure 5 to Part 1633 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION FLAMMABLE FABRICS ACT REGULATIONS STANDARD FOR THE FLAMMABILITY (OPEN FLAME) OF MATTRESS SETS Pt.1633, Fig. 5 Figure 5 to Part...

  1. Monitoring the Microgravity Environment Quality On-board the International Space Station Using Soft Computing Techniques. Part 2; Preliminary System Performance Results

    NASA Technical Reports Server (NTRS)

    Jules, Kenol; Lin, Paul P.; Weiss, Daniel S.

    2002-01-01

    This paper presents the preliminary performance results of the artificial intelligence monitoring system in full operational mode using near real time acceleration data downlinked from the International Space Station. Preliminary microgravity environment characterization analysis result for the International Space Station (Increment-2), using the monitoring system is presented. Also, comparison between the system predicted performance based on ground test data for the US laboratory "Destiny" module and actual on-orbit performance, using measured acceleration data from the U.S. laboratory module of the International Space Station is presented. Finally, preliminary on-orbit disturbance magnitude levels are presented for the Experiment of Physics of Colloids in Space, which are compared with on ground test data. The ground test data for the Experiment of Physics of Colloids in Space were acquired from the Microgravity Emission Laboratory, located at the NASA Glenn Research Center, Cleveland, Ohio. The artificial intelligence was developed by the NASA Glenn Principal Investigator Microgravity Services Project to help the principal investigator teams identify the primary vibratory disturbance sources that are active, at any moment of time, on-board the International Space Station, which might impact the microgravity environment their experiments are exposed to. From the Principal Investigator Microgravity Services' web site, the principal investigator teams can monitor via a dynamic graphical display, implemented in Java, in near real time, which event(s) is/are on, such as crew activities, pumps, fans, centrifuges, compressor, crew exercise, structural modes, etc., and decide whether or not to run their experiments, whenever that is an option, based on the acceleration magnitude and frequency sensitivity associated with that experiment. This monitoring system detects primarily the vibratory disturbance sources. The system has built-in capability to detect both known

  2. 13 CFR 308.2 - Performance awards.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 13 Business Credit and Assistance 1 2010-01-01 2010-01-01 false Performance awards. 308.2 Section 308.2 Business Credit and Assistance ECONOMIC DEVELOPMENT ADMINISTRATION, DEPARTMENT OF COMMERCE PERFORMANCE INCENTIVES § 308.2 Performance awards. (a) A Recipient of Investment Assistance under parts 305...

  3. High-performance capillary electrophoretic method for the quantification of 5-methyl 2'-deoxycytidine in genomic DNA: application to plant, animal and human cancer tissues.

    PubMed

    Fraga, Mario F; Uriol, Esther; Borja Diego, L; Berdasco, María; Esteller, Manel; Cañal, María Jesús; Rodríguez, Roberto

    2002-06-01

    A new approach to the evaluation of the relative degree of genomic DNA methylation through the quantification of 2'-deoxynucleosides is proposed. Detection and quantification of 5-methyl 2'-deoxycytidine in genomic DNA has been performed using micellar high-performance capillary electrophoresis (HPCE) with UV-Vis detection. This approach has been demonstrated to be more sensitive and specific than other HPCE methods for the quantification of DNA methylation degree and also to be faster than other HPLC-based methods. The detection and quantification of nucleosides through enzymatic hydrolyses notably increases the specificity of the technique and allows its exploitation in the analysis of poorly purified and/or concentrated DNA samples such as those obtained from meristematic plant regions and paraffin-embedded tissues.

  4. 47 CFR Appendix 2 to Part 97 - VEC Regions

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 47 Telecommunication 5 2010-10-01 2010-10-01 false VEC Regions 2 Appendix 2 to Part 97 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) SAFETY AND SPECIAL RADIO SERVICES AMATEUR RADIO SERVICE Pt. 97, App. 2 Appendix 2 to Part 97—VEC Regions 1. Connecticut, Maine, Massachusetts,...

  5. 47 CFR Appendix 2 to Part 97 - VEC Regions

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 47 Telecommunication 5 2011-10-01 2011-10-01 false VEC Regions 2 Appendix 2 to Part 97 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) SAFETY AND SPECIAL RADIO SERVICES AMATEUR RADIO SERVICE Pt. 97, App. 2 Appendix 2 to Part 97—VEC Regions 1. Connecticut, Maine, Massachusetts,...

  6. 47 CFR Appendix 2 to Part 97 - VEC Regions

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 47 Telecommunication 5 2013-10-01 2013-10-01 false VEC Regions 2 Appendix 2 to Part 97 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) SAFETY AND SPECIAL RADIO SERVICES AMATEUR RADIO SERVICE Pt. 97, App. 2 Appendix 2 to Part 97—VEC Regions 1. Connecticut, Maine, Massachusetts,...

  7. 47 CFR Appendix 2 to Part 97 - VEC Regions

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 47 Telecommunication 5 2012-10-01 2012-10-01 false VEC Regions 2 Appendix 2 to Part 97 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) SAFETY AND SPECIAL RADIO SERVICES AMATEUR RADIO SERVICE Pt. 97, App. 2 Appendix 2 to Part 97—VEC Regions 1. Connecticut, Maine, Massachusetts,...

  8. 47 CFR Appendix 2 to Part 97 - VEC Regions

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 47 Telecommunication 5 2014-10-01 2014-10-01 false VEC Regions 2 Appendix 2 to Part 97 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) SAFETY AND SPECIAL RADIO SERVICES AMATEUR RADIO SERVICE Pt. 97, App. 2 Appendix 2 to Part 97—VEC Regions 1. Connecticut, Maine, Massachusetts,...

  9. 44 CFR 5.1 - Scope and purposes of part.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 44 Emergency Management and Assistance 1 2010-10-01 2010-10-01 false Scope and purposes of part. 5.1 Section 5.1 Emergency Management and Assistance FEDERAL EMERGENCY MANAGEMENT AGENCY, DEPARTMENT OF HOMELAND SECURITY GENERAL PRODUCTION OR DISCLOSURE OF INFORMATION General Provisions § 5.1 Scope...

  10. 44 CFR 5.1 - Scope and purposes of part.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 44 Emergency Management and Assistance 1 2012-10-01 2011-10-01 true Scope and purposes of part. 5.1 Section 5.1 Emergency Management and Assistance FEDERAL EMERGENCY MANAGEMENT AGENCY, DEPARTMENT OF... with 5 U.S.C. 552, popularly known as the “Freedom of Information Act,” (FOIA)....

  11. Electrochemical performance of 0.5Li2MnO3-0.5Li(Mn0.375Ni0.375Co0.25)O2 composite cathode in pyrrolidinium-based ionic liquid electrolytes

    NASA Astrophysics Data System (ADS)

    Patra, Jagabandhu; Dahiya, Prem Prakash; Tseng, Chung-Jen; Fang, Jason; Lin, Yu-Wei; Basu, S.; Majumder, S. B.; Chang, Jeng-Kuei

    2015-10-01

    High-energy-density 0.5Li2MnO3-0.5Li(Mn0.375Ni0.375Co0.25)O2 composite cathodes for lithium rechargeable batteries are synthesized using an auto-combustion method. The electrode charge-discharge properties are studied at 25 and 50 °C in Li+-containing N-butyl-N-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide (BMP-TFSI) and N-propyl-N-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide (PMP-TFSI) ionic liquid (IL) electrolytes. The IL electrolytes have a high decomposition temperature (∼400 °C) and thus are ideal for high-safety applications. Compared to Li+/BMP-TFSI IL, Li+/PMP-TFSI IL exhibits higher ionic conductivity and lower viscosity. As a result, the composite cathode shows superior electrochemical performance in Li+/PMP-TFSI IL electrolyte. With the increase in cell temperature from 25 to 50 °C, the maximum capacities and rate capabilities of both IL cells improve significantly. Thus at 50 °C, discharge capacities of 304 mAh g-1 (@10 mA g-1) and 223 mAh g-1 (@100 mA g-1) are obtained for the Li+/PMP-TFSI cell. These capacities are superior to those for a control cell made with the same composite cathode and a conventional organic electrolyte. At elevated temperature, the cyclability of the composite cathode in the IL electrolytes is markedly higher than that obtained in a conventional organic electrolyte.

  12. 5 CFR 185.116 - Ex parte contacts.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 5 Administrative Personnel 1 2012-01-01 2012-01-01 false Ex parte contacts. 185.116 Section 185.116 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT CIVIL SERVICE REGULATIONS PROGRAM FRAUD CIVIL REMEDIES § 185.116 Ex parte contacts. No party or person (except employees of the ALJ's...

  13. 5 CFR 185.116 - Ex parte contacts.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 5 Administrative Personnel 1 2014-01-01 2014-01-01 false Ex parte contacts. 185.116 Section 185.116 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT CIVIL SERVICE REGULATIONS PROGRAM FRAUD CIVIL REMEDIES § 185.116 Ex parte contacts. No party or person (except employees of the ALJ's...

  14. 5 CFR 185.116 - Ex parte contacts.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 5 Administrative Personnel 1 2011-01-01 2011-01-01 false Ex parte contacts. 185.116 Section 185.116 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT CIVIL SERVICE REGULATIONS PROGRAM FRAUD CIVIL REMEDIES § 185.116 Ex parte contacts. No party or person (except employees of the ALJ's...

  15. 5 CFR 185.116 - Ex parte contacts.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 5 Administrative Personnel 1 2013-01-01 2013-01-01 false Ex parte contacts. 185.116 Section 185.116 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT CIVIL SERVICE REGULATIONS PROGRAM FRAUD CIVIL REMEDIES § 185.116 Ex parte contacts. No party or person (except employees of the ALJ's...

  16. 5 CFR 185.116 - Ex parte contacts.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 5 Administrative Personnel 1 2010-01-01 2010-01-01 false Ex parte contacts. 185.116 Section 185.116 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT CIVIL SERVICE REGULATIONS PROGRAM FRAUD CIVIL REMEDIES § 185.116 Ex parte contacts. No party or person (except employees of the ALJ's...

  17. 3. EXTERIOR VIEW INTO PART OF OPEN HEARTH NO. 5 ...

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

    3. EXTERIOR VIEW INTO PART OF OPEN HEARTH NO. 5 WITH RAILROAD TRESTLE IN FOREGROUND. (Jet Lowe) - U.S. Steel Homestead Works, Open Hearth Steelmaking Plant, Along Monongahela River, Homestead, Allegheny County, PA

  18. 10 CFR 960.5-2-5 - Environmental quality.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ..., technical, social, economic, and environmental factors; and (2) the requirements specified in § 960.5-1(a)(2... programmatic, technical, social, economic, and environmental factors. (2) Any part of the restricted area or... of reasonable measures, taking into account programmatic, technical, social, economic,...

  19. 10 CFR 960.5-2-5 - Environmental quality.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ..., technical, social, economic, and environmental factors; and (2) the requirements specified in § 960.5-1(a)(2... programmatic, technical, social, economic, and environmental factors. (2) Any part of the restricted area or... of reasonable measures, taking into account programmatic, technical, social, economic,...

  20. 10 CFR 960.5-2-5 - Environmental quality.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ..., technical, social, economic, and environmental factors; and (2) the requirements specified in § 960.5-1(a)(2... programmatic, technical, social, economic, and environmental factors. (2) Any part of the restricted area or... of reasonable measures, taking into account programmatic, technical, social, economic,...

  1. 10 CFR 960.5-2-5 - Environmental quality.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ..., technical, social, economic, and environmental factors; and (2) the requirements specified in § 960.5-1(a)(2... programmatic, technical, social, economic, and environmental factors. (2) Any part of the restricted area or... of reasonable measures, taking into account programmatic, technical, social, economic,...

  2. 10 CFR 960.5-2-5 - Environmental quality.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ..., technical, social, economic, and environmental factors; and (2) the requirements specified in § 960.5-1(a)(2... programmatic, technical, social, economic, and environmental factors. (2) Any part of the restricted area or... of reasonable measures, taking into account programmatic, technical, social, economic,...

  3. DICOM Data Warehouse: Part 2.

    PubMed

    Langer, Steve G

    2016-06-01

    In 2010, the DICOM Data Warehouse (DDW) was launched as a data warehouse for DICOM meta-data. Its chief design goals were to have a flexible database schema that enabled it to index standard patient and study information, modality specific tags (public and private), and create a framework to derive computable information (derived tags) from the former items. Furthermore, it was to map the above information to an internally standard lexicon that enables a non-DICOM savvy programmer to write standard SQL queries and retrieve the equivalent data from a cohort of scanners, regardless of what tag that data element was found in over the changing epochs of DICOM and ensuing migration of elements from private to public tags. After 5 years, the original design has scaled astonishingly well. Very little has changed in the database schema. The knowledge base is now fluent in over 90 device types. Also, additional stored procedures have been written to compute data that is derivable from standard or mapped tags. Finally, an early concern is that the system would not be able to address the variability DICOM-SR objects has been addressed. As of this writing the system is indexing 300 MR, 600 CT, and 2000 other (XA, DR, CR, MG) imaging studies per day. The only remaining issue to be solved is the case for tags that were not prospectively indexed-and indeed, this final challenge may lead to a noSQL, big data, approach in a subsequent version.

  4. 1. PART 1 OF 2 PART PANORAMA WITH NO. CA2722. ...

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

    1. PART 1 OF 2 PART PANORAMA WITH NO. CA-272-2. SOUTH SIDE OF VIADUCT IN REAR. LOS ANGELES RIVER IN FOREGROUND. LOOKING WEST/SOUTHWEST FROM EAST SIDE OF RIVER. - Glendale-Hyperion Viaduct, Spanning Golden State Freeway (I-5) & Los Angeles River at Glendale Boulevard, Los Angeles, Los Angeles County, CA

  5. Performance and sulfur poisoning of Ni/CeO2 impregnated La0.75Sr0.25Cr0.5Mn0.5O3-δ anode in solid oxide fuel cells

    NASA Astrophysics Data System (ADS)

    Li, Yiqian; Zhang, Yaohui; Zhu, Xingbao; Wang, Zhihong; Lü, Zhe; Huang, Xiqiang; Zhou, Yongjun; Zhu, Lin; Jiang, Wei

    2015-07-01

    In this study, comparison experiments are conducted based on yttria-stabilized zirconia (YSZ) electrolyte supported single solid oxide fuel cells (SOFCs) with pure La0.75Sr0.25Cr0.5Mn0.5O3-δ (LSCrM) or Ni/CeO2 impregnated LSCrM anodes. The single cells are tested in dry H2 and H2/H2S (50 ppm) mixture, respectively. Compared with the pure LSCrM anode, the cell with Ni/CeO2 impregnated LSCrM presents a significant performance improvement when the pure H2 is fueled to the anode, and shows a good stability during a constant-current discharge testing (398 mA cm-2). When the fuel is switched to H2/H2S mixture, the cell with Ni/CeO2 impregnated LSCrM anode still shows a remarkable constant-current discharge (120 mA cm-2) performance compared with pure LSCrM anode. The Ni/CeO2 impregnation can improve the electrochemical performance of the LSCrM anode without any sacrifice of sulfur tolerance ability. The Ni/CeO2 impregnated LSCrM might be a potential anode material for solid oxide fuel cell operating in sulfur-containing fuels. The XRD and XPS results demonstrate that the anode poisoning product is composed of adsorbed sulfur, metal sulfides and sulfate radical. The mass spectrum result confirms that the poisoning mechanism involves the reaction of sulfur with anode rather than the direct reaction between H2S gas and anode.

  6. Thieno[3,2-b]pyrrole-5-carboxamides as New Reversible Inhibitors of Histone Lysine Demethylase KDM1A/LSD1. Part 2: Structure-Based Drug Design and Structure-Activity Relationship.

    PubMed

    Vianello, Paola; Sartori, Luca; Amigoni, Federica; Cappa, Anna; Fagá, Giovanni; Fattori, Raimondo; Legnaghi, Elena; Ciossani, Giuseppe; Mattevi, Andrea; Meroni, Giuseppe; Moretti, Loris; Cecatiello, Valentina; Pasqualato, Sebastiano; Romussi, Alessia; Thaler, Florian; Trifiró, Paolo; Villa, Manuela; Botrugno, Oronza A; Dessanti, Paola; Minucci, Saverio; Vultaggio, Stefania; Zagarrí, Elisa; Varasi, Mario; Mercurio, Ciro

    2017-03-09

    The balance of methylation levels at histone H3 lysine 4 (H3K4) is regulated by KDM1A (LSD1). KDM1A is overexpressed in several tumor types, thus representing an emerging target for the development of novel cancer therapeutics. We have previously described ( Part 1, DOI 10.1021.acs.jmedchem.6b01018 ) the identification of thieno[3,2-b]pyrrole-5-carboxamides as novel reversible inhibitors of KDM1A, whose preliminary exploration resulted in compound 2 with biochemical IC50 = 160 nM. We now report the structure-guided optimization of this chemical series based on multiple ligand/KDM1A-CoRest cocrystal structures, which led to several extremely potent inhibitors. In particular, compounds 46, 49, and 50 showed single-digit nanomolar IC50 values for in vitro inhibition of KDM1A, with high selectivity in secondary assays. In THP-1 cells, these compounds transcriptionally affected the expression of genes regulated by KDM1A such as CD14, CD11b, and CD86. Moreover, 49 and 50 showed a remarkable anticlonogenic cell growth effect on MLL-AF9 human leukemia cells.

  7. 40 CFR Appendix L to Part 50 - Reference Method for the Determination of Fine Particulate Matter as PM2.5 in the Atmosphere

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... must be verified by the manufacturer using Class ZZ go/no-go plug gauges that are traceable to NIST. 7... mounted external to the sampler enclosure and shall have a passive, naturally ventilated sun shield. The sensor shall be located such that the entire sun shield is at least 5 cm above the horizontal plane...

  8. Development and performance of IR detectors in the 1.5 to 2.4 micrometer region that operate at 240 K

    NASA Technical Reports Server (NTRS)

    Chiang, A. F.; Aldrich, N. C.

    1973-01-01

    High performance 1.5 to 2.4 micrometers (Hg,Cd)Te photodetectors for operating at 240 K or above are discussed. The detailed characterization of the detector with respect to detector temperature and background flux led to a development of an empirical model for minority carrier trapping. The concept of detective time constant is presented and successfully demonstrated by the four detectors delivered on this contract. An alternative approach is presented with the use of photovoltaic (Hg,Cd)Te detectors.

  9. Ti-Substituted NaNi0.5 Mn0.5-x Tix O2 Cathodes with Reversible O3-P3 Phase Transition for High-Performance Sodium-Ion Batteries.

    PubMed

    Wang, Peng-Fei; Yao, Hu-Rong; Liu, Xin-Yu; Zhang, Jie-Nan; Gu, Lin; Yu, Xi-Qian; Yin, Ya-Xia; Guo, Yu-Guo

    2017-03-15

    Sodium-ion batteries (SIBs) have been considered as potential candidates for stationary energy storage because of the low cost and wide availability of Na sources. O3-type layered oxides have been considered as one of the most promising cathodes for SIBs. However, they commonly show inevitable complicated phase transitions and sluggish kinetics, incurring rapid capacity decline and poor rate capability. Here, a series of sodium-sufficient O3-type NaNi0.5 Mn0.5-x Ti x O2 (0 ≤ x ≤ 0.5) cathodes for SIBs is reported and the mechanisms behind their excellent electrochemical performance are studied in comparison to those of their respective end-members. The combined analysis of in situ X-ray diffraction, ex situ X-ray absorption spectroscopy, and scanning transmission electron microscopy for NaNi0.5 Mn0.2 Ti0.3 O2 reveals that the O3-type phase transforms reversibly into a P3-type phase upon Na+ deintercalation/intercalation. The substitution of Ti for Mn enlarges interslab distance and could restrain the unfavorable and irreversible multiphase transformation in the high voltage regions that is usually observed in O3-type NaNi0.5 Mn0.5 O2 , resulting in improved Na cell performance. This integration of macroscale and atomicscale engineering strategy might open up the modulation of the chemical and physical properties in layered oxides and grasp new insight into the optimal design of high-performance cathode materials for SIBs.

  10. The Ca element effect on the enhancement performance of Sr2Fe1.5Mo0.5O6-δ perovskite as cathode for intermediate-temperature solid oxide fuel cells

    NASA Astrophysics Data System (ADS)

    Qiao, Jinshuo; Chen, Wenjun; Wang, Wenyi; Wang, Zhenhua; Sun, Wang; Zhang, Jing; Sun, Kening

    2016-11-01

    In this paper, the partial substitution of atomic elements from the A site of a perovskite is investigated in order to develop cathode materials for solid oxide fuel cell (SOFC) applications. Herein, Sr2-xCaxFe1.5Mo0.5O6-δ (SCFM), compounds were investigated by characterizing structural properties, chemical compatibility, electrical properties, electrochemical performance and stability. Thermal expansion coefficients were found to decrease when increasing the Ca content. X-ray photoelectron spectroscopy analysis suggests that Ca doping significantly affects the Fe2+/Fe3+ and Mo6+/Mo5+ ratios. For a doping level of x = 0.4, the sample showed the lowest interface polarization (Rp), the highest conductivity and a maximum power density of 1.26 W cm-2 at 800 °C. These results suggest that SCFM cathode materials are excellent candidates for intermediate temperature solid oxide fuel cells applications.

  11. Li2ZrO3-coated Li4Ti5O12 with nanoscale interface for high performance lithium-ion batteries

    NASA Astrophysics Data System (ADS)

    Zhang, Han; Liu, Yang; Wang, Ting; Yang, Yang; Shi, Shaojun; Yang, Gang

    2016-04-01

    Zr doped sample of Li4Ti4.99Zr0.01O12 (LZTO) and Li2ZrO3 (LZO) coated Li4Ti5O12 (LTO) are prepared by a solid-state method. The lattice structure of LTO is remained after doping element of Zr and coating layer of LZO. The crystal structure and electrochemical performance of the material are investigated by X-ray diffractometry (XRD), high-resolution transmission electron microscopy (HRTEM), cyclic voltammetry (CV), galvanostatic intermittent titration technique (GITT) and charge-discharge tests, respectively. Zr-doping and LZO coating play the positive role in improving the diffusion ability of lithium cations. LZTO and LZO-LTO show much improved specific capacity and rate capability compared with pristine sample of LTO. LZO-LTO has the smallest voltage differential (ΔV) of the redox peaks because the coating of Li2ZrO3 is helpful for the diffusion ability of lithium ions during charge/discharge processes. LZTO and LZO-LTO as electrode deliver the initial capacities of 164.8, 168.1 mAh g-1, respectively, which are much higher than 150.2 mAh g-1 of intrinsic sample of LTO. Even at the current density of 2 A g-1, LTZO and LZO-LTO offer capacity of 96 and 106 mAh g-1, which are much higher than 33 mAh g-1 of LTO. The improved electrochemical performance is attributed to the improved diffusion ability of lithium. During the whole discharge process, the lowest value of LTO is 5.97 × 10-17 cm2 s-1 that is much lower than 7.80 × 10-16 cm2 s-1 in LZTO and 1.85 × 10-15 cm2 s-1 in LZO-LTO, respectively.

  12. Site characterization plan: Yucca Mountain Site, Nevada Research and Development Area, Nevada: Volume 2, Part A: Chapters 3, 4, and 5

    SciTech Connect

    1988-12-01

    This site characterization plan (SCP) has been developed for the candidate repository site at Yucca Mountain in the State of Nevada. The SCP includes a description of the Yucca Mountain site (Chapters 1--5), a conceptual design for the repository (Chapter 6), a description of the packaging to be used for the waste to be emplaced in the repository (Chapter 7), and a description of the planned site characterization activities (Chapter 8). The schedules and milestones presented in Sections 8.3 and 8.5 of the SCP were developed to be consistent with the June 1988 draft Amendment to the DOE`s Mission Plan for the Civilian Radioactive Waste Management Program. The five month delay in the scheduled start of exploratory shaft construction that was announced recently is not reflected in these schedules. 575 refs., 84 figs., 68 tabs.

  13. Flexible Pipeline Increases Ship Channel Dredging Research. Volume 5, Number 4. December 2002. Flexible Pipeline Increases Ship Channel Safety for Dustpan Dredge Operations During Marsh Creation (Part 2)

    DTIC Science & Technology

    2002-12-01

    Research, Vol 5, No. 4 7 Dredging Calendar — 2003 January 12-16 - TRB 82d Annual Meeting 2003. The Marriot Wardman Park, Omni Shoreham, and Hilton...Washington hotels in Washington, DC, host more than 450 formal sessions and 300+ committee meetings. More than 8,500 transporta- tion professionals from...and Management Training, will be held at the Embassy Suites Downtown, Denver, CO. Hotel cost is $112/night (single), $132/night (double), or current

  14. Part 1: Synthesis and characterization of magnetic chromium5tellurium nanoparticles Part 2: Local atomic structure studies using theory to simulate polarons in superconducting cuprates and experiment to analyze alternative energy nanomaterials

    NASA Astrophysics Data System (ADS)

    Martucci, Mary B.

    The field of spintronics, the development of spin-based devices that utilize the spin degree of freedom to increase memory capacity, has emerged as a solution to faster more efficient memory storage for electronic devices. One class of materials that has been extensively studied is the half-metallic ferromagnets, compounds that are 100% spin-polarized at the Fermi level. One material in this group that has been investigated is chromium telluride (Cr 1-xTe), whose family of compounds is known to exhibit a wide range of interesting magnetic and electronic properties. We have developed a hot injection solution synthesis of Cr5Te8 nanoplatlets which show similar magnetic behavior to the bulk material. It has also been shown that selenium and sulfur analogues can be obtained without changing the reaction conditions, making progress toward a better understanding of the reaction as well as an interesting family of compounds. Using real-space simulations, the effect of polarons in the high-Tc superconducting cuprates has been studied. The simulations demonstrate energetically favorable sites for the defects and show evidence of longer-range pairing interactions. Variations of the stripe show similar energetic results. X-ray absorption fine structure spectroscopy and neutron scattering have been utilized to examine the local structure of Ni-doped Mg nanoparticles, a hydrogen storage material as well as Cu2ZnSnS4 (CZTS) nanoparticles, a photovoltaic material. The Mg-Ni material shows much local disorder upon hydrogen cycling. The CZTS data demonstrate a loss of sulfur from around the copper sites upon annealing, helping to explain the changes observed in the optical absorption properties resulting from the annealing process.

  15. 43 CFR Appendix E to Part 2 - FOIA Exemptions

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 43 Public Lands: Interior 1 2010-10-01 2010-10-01 false FOIA Exemptions E Appendix E to Part 2... INFORMATION ACT Pt. 2, App. E Appendix E to Part 2—FOIA Exemptions Under the FOIA (5 U.S.C. 552(b)), there are... expected to disclose the identity of a confidential source; (E) Would disclose techniques, procedures,...

  16. The Impact of Body-Part-Naming Training on the Accuracy of Imitative Performances in 2- to 3-Year-Old Children

    ERIC Educational Resources Information Center

    Camoes-Costa, Vera; Erjavec, Mihela; Horne, Pauline J.

    2011-01-01

    A series of three experiments explored the relationship between 3-year-old children's ability to name target body parts and their untrained matching of target hand-to-body touches. Nine participants, 3 per experiment, were presented with repeated generalized imitation tests in a multiple-baseline procedure, interspersed with step-by-step training…

  17. Enhanced performance of solid oxide fuel cells with Ni/CeO 2 modified La 0.75Sr 0.25Cr 0.5Mn 0.5O 3- δ anodes

    NASA Astrophysics Data System (ADS)

    Zhu, Xingbao; Lü, Zhe; Wei, Bo; Chen, Kongfa; Liu, Mingliang; Huang, Xiqiang; Su, Wenhui

    The optimization of electrodes for solid oxide fuel cells (SOFCs) has been achieved via a wet impregnation method. Pure La 0.75Sr 0.25Cr 0.5Mn 0.5O 3- δ (LSCrM) anodes are modified using Ni(NO 3) 2 and/or Ce(NO 3) 3/(Sm,Ce)(NO 3) x solution. Several yttria-stabilized zirconia (YSZ) electrolyte-supported fuel cells are tested to clarify the contribution of Ni and/or CeO 2 to the cell performance. For the cell using pure-LSCrM anodes, the maximum power density (P max) at 850 °C is 198 mW cm -2 when dry H 2 and air are used as the fuel and oxidant, respectively. When H 2 is changed to CH 4, the value of P max is 32 mW cm -2. After 8.9 wt.% Ni and 5.8 wt.% CeO 2 are introduced into the LSCrM anode, the cell exhibits increased values of P max 432, 681, 948 and 1135 mW cm -2 at 700, 750, 800 and 850 °C, respectively, with dry H 2 as fuel and air as oxidant. When O 2 at 50 mL min -1 is used as the oxidant, the value of P max increases to 1450 mW cm -2 at 850 °C. When dry CH 4 is used as fuel and air as oxidant, the values of P max reach 95, 197, 421 and 645 mW cm -2 at 750, 800, 850 and 900 °C, respectively. The introduction of Ni greatly improves the performance of the LSCrM anode but does not cause any carbon deposit.

  18. Separation of oligo/polymers of 5-N-acetylneuraminic acid, 5-N-glycolylneuraminic acid, and 2-keto-3-deoxy-D-glycero-D-galacto-nononic acid by high-performance anion-exchange chromatography with pulsed amperometric detector.

    PubMed

    Zhang, Y; Inoue, Y; Inoue, S; Lee, Y C

    1997-08-01

    A sensitive and efficient method to analyze oligo/ poly-sialic acids containing alpha2-8-linked 5-N-acetylneuraminic acid (Neu5Ac), 5-N-glycolylneuraminic acid (Neu5Gc), and deaminated neuraminic acid (KDN) using high-performance anion-exchange chromatography (HPAEC) with a pulsed amperometric detector (PAD-2) has been developed. Using a CarboPac PA-100 column and sodium nitrate as the pushing agent, polymers in colominic acid with degree of polymerization (DP) up to 80 were separated in 68 min. A similar DP-based resolution was also obtained on a CarboPac PA-1 column. The elution ladders of the Neu5Ac, Neu5Gc, and KDN series were sufficiently different to be used as diagnostic indices. This technique was applied to identification of the sialic acid components in a polysialoglycoprotein (PSGP) sample as well as monitoring the oligo/poly-KDN-containing fractions during the purification of KDN-containing glycoprotein (KDN-gp). The maximum DPs of oligo-Neu5Gc and oligo-KDN that can be detected in PSGP and KDN-gp hydrolysates were 11 and 8, respectively. The high sensitivity of this method was demonstrated by the quantification of Neu5Ac oligomers. Distributions of the monomer and oligo/polymers in the acid and enzymatic hydrolysates of colominic acid and PSGP under different conditions were also studied.

  19. Synthesis, Structure, and Electrochemical Performance of High Capacity Li2Cu0.5Ni0.5O2 Cathodes

    SciTech Connect

    Ruther, Rose E; Zhou, Hui; Dhital, Chetan; Saravanan, Kuppan; Kercher, Andrew K.; Chen, Guoying; Huq, Ashfia; Delnick, Frank M.; Nanda, Jagjit

    2015-09-08

    Orthorhombic Li2NiO2, Li2CuO2, and solid solutions thereof have been studied as potential cathode materials for lithium-ion batteries due to their high theoretical capacity and relatively low cost. While neither endmember shows good cycling stability, the intermediate composition, Li2Cu0.5Ni0.5O2, yields reasonably high reversible capacities. A new synthetic approach and detailed characterization of this phase and the parent Li2CuO2 are presented. The cycle life of Li2Cu0.5Ni0.5O2 is shown to depend critically on the voltage window. The formation of Cu1+ at low voltage and oxygen evolution at high voltage limit the electrochemical reversibility. In situ X-ray absorption spectroscopy (XAS), in situ Raman spectroscopy, and gas evolution measurements are used to follow the chemical and structural changes that occur as a function of cell voltage.

  20. 29 CFR 784.122 - Operations performed as an integrated part of fishing.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 29 Labor 3 2012-07-01 2012-07-01 false Operations performed as an integrated part of fishing. 784.122 Section 784.122 Labor Regulations Relating to Labor (Continued) WAGE AND HOUR DIVISION, DEPARTMENT...(a)(5) Exemption § 784.122 Operations performed as an integrated part of fishing. Certain...

  1. 29 CFR 784.122 - Operations performed as an integrated part of fishing.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 29 Labor 3 2011-07-01 2011-07-01 false Operations performed as an integrated part of fishing. 784.122 Section 784.122 Labor Regulations Relating to Labor (Continued) WAGE AND HOUR DIVISION, DEPARTMENT...(a)(5) Exemption § 784.122 Operations performed as an integrated part of fishing. Certain...

  2. 29 CFR 784.122 - Operations performed as an integrated part of fishing.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 29 Labor 3 2013-07-01 2013-07-01 false Operations performed as an integrated part of fishing. 784.122 Section 784.122 Labor Regulations Relating to Labor (Continued) WAGE AND HOUR DIVISION, DEPARTMENT...(a)(5) Exemption § 784.122 Operations performed as an integrated part of fishing. Certain...

  3. 29 CFR 784.122 - Operations performed as an integrated part of fishing.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 29 Labor 3 2010-07-01 2010-07-01 false Operations performed as an integrated part of fishing. 784.122 Section 784.122 Labor Regulations Relating to Labor (Continued) WAGE AND HOUR DIVISION, DEPARTMENT...(a)(5) Exemption § 784.122 Operations performed as an integrated part of fishing. Certain...

  4. 29 CFR 784.122 - Operations performed as an integrated part of fishing.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 29 Labor 3 2014-07-01 2014-07-01 false Operations performed as an integrated part of fishing. 784.122 Section 784.122 Labor Regulations Relating to Labor (Continued) WAGE AND HOUR DIVISION, DEPARTMENT...(a)(5) Exemption § 784.122 Operations performed as an integrated part of fishing. Certain...

  5. A new and economic approach to synthesize and fabricate bioactive diopside ceramics using a modified domestic microwave oven. Part 2: effect of P2O5 additions on diopside bioactivity and mechanical properties.

    PubMed

    Zouai, Souheila; Harabi, Abdelhamid; Karboua, Noureddine; Harabi, Esma; Chehlatt, Sihem; Barama, Salah-Edine; Zaiou, Soumia; Bouzerara, Ferhat; Guerfa, Fatiha

    2016-04-01

    In this work, diopside based ceramics was obtained by solid state reaction using conventional sintering (CS) and microwave sintering (MS). Moreover, different amounts of P2O5 (0.5-5.0 wt.%) have been added. It has been found that a relative density up to 95% theoretical was obtained for diopside containing 2.0 and 5.0 wt.% P2O5, sintered at 1250 °C for 2h and at 1075 °C only for 15 min using CS and MS. Excellent values of micro hardness (7.4 ± 0.1 GPa) and 3 point flexural strength (about 270 MPa) for samples containing 5 wt.% P2O5, sintered at 1075 °C for 15 min using MS were measured. Besides this, a relatively low weight loss ratio has been measured (0.01%) for diopside samples containing 5 wt.% P2O5, sintered under the same conditions, after soaking in physiological salt solution for 2 days. Additionally, the bioactivity of diopside by the possibility of formation of apatite on the surface of pure diopside and diopside containing 2 wt.% of P2O5 immersed in simulated body fluid (SBF) was also confirmed. Finally, particular nano-sized of Carbonated hydroxyapatite (CHA) crystals (rice shaped) were formed and covered the surface of these samples, soaked in SBF solution for 14 days.

  6. 4. PART 1 OF 3 PART PANORAMA WITH NOS. CA265J5 ...

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

    4. PART 1 OF 3 PART PANORAMA WITH NOS. CA-265-J-5 AND CA-265-J-6 OF FIGUEROA STREET AND LOS ANGELES RIVER VIADUCTS. NOTE TUNNEL NO.1 NORTH PORTAL AT LEFT REAR. LOOKING 268°W. - Arroyo Seco Parkway, Figueroa Street Viaduct, Spanning Los Angeles River, Los Angeles, Los Angeles County, CA

  7. 19 CFR 207.5 - Ex parte meetings.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 19 Customs Duties 3 2013-04-01 2013-04-01 false Ex parte meetings. 207.5 Section 207.5 Customs Duties UNITED STATES INTERNATIONAL TRADE COMMISSION NONADJUDICATIVE INVESTIGATIONS INVESTIGATIONS OF WHETHER INJURY TO DOMESTIC INDUSTRIES RESULTS FROM IMPORTS SOLD AT LESS THAN FAIR VALUE OR FROM...

  8. 19 CFR 207.5 - Ex parte meetings.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 19 Customs Duties 3 2010-04-01 2010-04-01 false Ex parte meetings. 207.5 Section 207.5 Customs Duties UNITED STATES INTERNATIONAL TRADE COMMISSION NONADJUDICATIVE INVESTIGATIONS INVESTIGATIONS OF WHETHER INJURY TO DOMESTIC INDUSTRIES RESULTS FROM IMPORTS SOLD AT LESS THAN FAIR VALUE OR FROM...

  9. 19 CFR 207.5 - Ex parte meetings.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 19 Customs Duties 3 2014-04-01 2014-04-01 false Ex parte meetings. 207.5 Section 207.5 Customs Duties UNITED STATES INTERNATIONAL TRADE COMMISSION NONADJUDICATIVE INVESTIGATIONS INVESTIGATIONS OF WHETHER INJURY TO DOMESTIC INDUSTRIES RESULTS FROM IMPORTS SOLD AT LESS THAN FAIR VALUE OR FROM...

  10. 19 CFR 207.5 - Ex parte meetings.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 19 Customs Duties 3 2012-04-01 2012-04-01 false Ex parte meetings. 207.5 Section 207.5 Customs Duties UNITED STATES INTERNATIONAL TRADE COMMISSION NONADJUDICATIVE INVESTIGATIONS INVESTIGATIONS OF WHETHER INJURY TO DOMESTIC INDUSTRIES RESULTS FROM IMPORTS SOLD AT LESS THAN FAIR VALUE OR FROM...

  11. 19 CFR 207.5 - Ex parte meetings.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 19 Customs Duties 3 2011-04-01 2011-04-01 false Ex parte meetings. 207.5 Section 207.5 Customs Duties UNITED STATES INTERNATIONAL TRADE COMMISSION NONADJUDICATIVE INVESTIGATIONS INVESTIGATIONS OF WHETHER INJURY TO DOMESTIC INDUSTRIES RESULTS FROM IMPORTS SOLD AT LESS THAN FAIR VALUE OR FROM...

  12. 40 CFR 717.5 - Persons subject to this part.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 32 2012-07-01 2012-07-01 false Persons subject to this part. 717.5 Section 717.5 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) TOXIC SUBSTANCES... means ownership of 50 percent or more of a firm's voting stock or other equity rights, or the power...

  13. The effects of exposure to LN2 temperatures and 2.5 suns solar radiation on 30-cm ion thruster performance

    NASA Technical Reports Server (NTRS)

    Mirtich, M. J.

    1975-01-01

    An experimental test program was developed to demonstrate all 30 cm Hg-ion bombardment thruster functions over the thermal environment of several proposed missions. A 30 cm thruster with grids dished 1.25 cm and instrumented with 31 thermocouples, was placed in a vacuum tank equipped with minus 196 C walls. Cold storage of a thruster was simulated and temperatures as low as minus 100 C were attained on the thruster. The thruster started successfully from these cold conditions. The thruster operating at both half and full beam power was exposed to 2.5 suns on axis solar simulation. Various thruster thermal configurations, used to simulate multiple thruster operation, were tested at the above conditions. The results of these tests are reported herein.

  14. The effects of exposure to LN2 temperatures and 2.5 suns solar radiation on 30-cm ion thruster performance

    NASA Technical Reports Server (NTRS)

    Mirtich, M. J.

    1975-01-01

    An experimental test program was developed to demonstrate all 30 cm Hg-ion bombardment thruster functions over the thermal environment of several proposed missions. A 30 cm thruster with grids dished 1.25 cm and instrumented with 31 thermocouples, was placed in a vacuum tank equipped with -196 C walls. Cold storage of a thruster was simulated and temperatures as low as -100 C were attained on the thruster. The thruster started successfully from these cold conditions. The thruster operating at both half and full beam power was exposed to 2.5 suns on axis solar simulation. Various thruster thermal configurations, used to simulate multiple thruster operation, were tested at the above conditions. The results of these tests are reported herein.

  15. Construction of 3D V2O5/hydrogenated-WO3 nanotrees on tungsten foil for high-performance pseudocapacitors.

    PubMed

    Wang, Fengmei; Li, Yuanchang; Cheng, Zhongzhou; Xu, Kai; Zhan, Xueying; Wang, Zhenxing; He, Jun

    2014-06-28

    3D semiconductor nanostructures have proved to be a rich system for the exploring of high-performance pseudocapacitors. Herein, a novel 3D WO3 nanotree on W foil is developed via a facile and green method. Both capacitance and conductivity of the WO3 nanotree electrode are greatly improved after hydrogenation treatment (denoted as H-WO3). First-principles calculation based on the experiments reveals the mechanism of the hydrogenation treatment effect on the 3D WO3 nanotrees. The surface O of 3D WO3 nanotrees gains electrons from the adsorbed H, and consequently certain electrons are back-donated to the neighboring W, thus providing the conducting channel on the surface. Ultrathin V2O5 films were coated on the H-WO3 nanotrees via a simple, low-cost, environmentally friendly electrochemical technique. This V2O5/H-WO3 electrode exhibited a remarkable specific capacitance of 1101 F g(-1) and an energy density of 98 W h kg(-1). The solid-state device based on the V2O5/H-WO3 electrodes shows excellent stability and practical application. Our work opens up the potential broad application of hydrogenation treatment of semiconductor nanostructures in pseudocapacitors and other energy storage devices.

  16. Progressing in Spanish Part 2, Foreign Language: 7504.32.

    ERIC Educational Resources Information Center

    Dade County Public Schools, Miami, FL.

    The second part of a 5-part course in Spanish serves as a curriculum guide to accompany the basic text, "ALM Spanish," units 12 and 13. The guide focuses on six areas of language instruction: (1) listening, (2) speaking, (3) reading, (4) writing, (5) culture knowledge, and (6) student analysis of attitudes toward language learning. The…

  17. Progressing in Spanish Part 2, Foreign Language: 7504.12.

    ERIC Educational Resources Information Center

    Dade County Public Schools, Miami, FL.

    The second part of a 5-part course in Spanish serves as a curriculum guide to accompany the basic text, "ALM Spanish," units 13 and 14. The guide focuses on six areas of language instruction: (1) listening, (2) speaking, (3) reading, (4) writing, (5) culture knowledge, and (6) student analysis of attitudes toward language learning. The…

  18. 40 CFR Appendix L to Part 50 - Reference Method for the Determination of Fine Particulate Matter as PM2.5 in the Atmosphere

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... filter used, the capacity of the sampler flow rate control system, and perhaps other factors..., appendix A of this chapter. 4.2 Measurement system bias. Results of collocated measurements where the duplicate sampler is a reference method sampler are used to assess a portion of the measurement system...

  19. 40 CFR Appendix L to Part 50 - Reference Method for the Determination of Fine Particulate Matter as PM2.5 in the Atmosphere

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ..., particle size separator (impactor), filter holder assembly, air pump and flow rate control system, flow... boiling deionized water for not less than 15 minutes. Section 53.51(d)(2) of this chapter should also be... equal to that of a clean filter plus up to 75 cm water column (55 mm Hg), and over the specified...

  20. A high-performance liquid chromatography method for determination 2-(n-(N,N,N-trimethyl)-n-alkyl)-5-alkylfuryl halides in dipalmitoylphosphatidilcholine liposome solutions.

    PubMed

    Morales, Javier; Zanocco, Antonio L; Günther, Germán; Lemp, Else

    2006-08-25

    A high-performance liquid chromatography (HPLC) method for the determination of 2-(4-(N,N,N-trimethyl)-butyl)-5-dodecylfuryl bromide (DFTA) in dipalmitoylphophatidil-choline (DPPC) liposome solutions has been developed. Lipid-soluble furan derivatives, 2,5-disubstituted with different n-alkyl chains and a terminal trimethylammonium group are useful probes for studying singlet oxygen dynamics and equilibria in microcompartmentalized systems. The actual HPLC method uses a gradient elution and DAD detection. The chromatographic separation of these components is achieved using a C18 analytical column with a 10mM solution of 1-heptanesulfonic acid (PIC-7)-methanol (10:90, v/v) as initial mobile phase. Both DFTA peaks are well resolved and free of interference from matrix components and reaction products. The method has been found to be linear (r > 0.999) over a wide concentration range and reliable to perform kinetic experiments in which the time dependent consumption of a tetraalkylammonium surfactant in a microorganized systems composed by lipidic surfactants is followed.

  1. Performance of the first science grade λc=2.5μm HAWAII 4RG-15 array in the laboratory and at the telescope

    NASA Astrophysics Data System (ADS)

    Hall, Donald N. B.; Atkinson, Dani; Blank, Richard; Farris, Mark; Goebel, Sean B.; Hodapp, Klaus W.; Jacobson, Shane M.; Loose, Markus; Zandian, Majid

    2016-08-01

    The primary goal of the HAWAII 4RG-15 (H4RG-15) development is to provide a 16 megapixel 4096x4096 format at significantly reduced price per pixel while maintaining the superb low background performance of the HAWAII 2RG (H2RG). The H4RG-15 design incorporates several new features, notably clocked reference output and interleaved reference pixel readout, that promise to significantly improve noise performance while the reduction in pixel pitch from 18 to 15 microns should improve transimpedance gain although at the expense of some reduction in full well and possible increase in crosstalk. We report the results of very preliminary characterization of a science grade Phase 2 λc 2.5 μm H4RG-15 operated in both conventional and Interleaved Reference Pixel (IRP) 32-output mode and have demonstrated that the CDS averaged read noise at 200 kHz pixel rate is comparable to, and possibly slightly below, that of the best Phase 1 H4RG-15s. We have also investigated the characteristics of pixels exhibiting RTN in the IRP frames.

  2. The Application of High-Performance Liquid Chromatography to the Analysis of Petroleum Materials. Part 2. Quantitative Hydrocarbon-Type Analysis.

    DTIC Science & Technology

    Quantitative hydrocarbon type analysis of middle distillate petroleum products, with emphasis on straight-run (olefin-free) diesel fuels has been accomplished by high performance liquid chromatography using silica gel absorbents.

  3. Microhydropower Handbook, Volume 1, Part 2

    SciTech Connect

    McKinney, J.D.

    1983-01-01

    The purpose of the “Microhydropower Handbook, Volume 1, Part 2” is to provide a mechanically proficient lay person with sufficient information to evaluate microhydropower site potential, lay out a site, select and install equipment, and finally, operate and maintain the completed system. The actual construction details of the site are not included; rather, pointers are given as to what help an individual should expect from a construction contractor, and general guidelines on construction details are provided. In addition, information about obtaining financing and permits is provided. To help offset cost, the person performing the work, referred to as the “developer,” is encouraged to do as much of the work as possible. However, developers with major areas of uncertainty should consider professional assistance.

  4. A Blend Approach to P3HT Based Field Effect Transistor Performance Enhancement via Inclusion of 2,5-bis(3-dodecylthiophen-2-yl)thieno[3,2-b]thiophene

    NASA Astrophysics Data System (ADS)

    Chu, Ping-Hsun; Zhang, Lei; Park, Jung Ok; Srinivasarao, Mohan; Briseño, Alejandro L.; Reichmanis, Elsa

    2015-03-01

    Improved OFET performance through a polymer-small molecule semiconductor blend approach was demonstrated. However, a number of serious issues remain. For example, the threshold voltage (Vth) of the blend OFETs is still at a relatively high value (|Vth|>10V), which is incompatible with most of portable electronics. Moreover, electrode treatment or thermal annealing is required to avoid a sacrifice in the device performance. Herein, a small molecule, 2,5-bis(3-dodecylthiophen-2-yl)thieno[3,2-b]thiophene (BTTT), is proposed to be incorporated within poly(3-hexylthiophene) (P3HT) polymer thin-films and is demonstrated to lead to overall improvement in transistor performance. The resultant blend OFETs exhibited approximately a 5-fold increase in charge carrier mobility, 10-fold increase in on-off current ratio and concomitantly, controlled the Vth as low as 1.7 V. It is worth noting that no pre- or post-treatment is required during the blend OFET fabrication process. Further, the thin-film deposition was conducted under ambient conditions using a volatile low boiling point solvent, suggesting a promising method for low-cost, high-throughput, large-area flexible device fabrication under non-stringent conditions.

  5. Exceptional performance of a high voltage spinel LiNi0.5Mn1.5O4 cathode in all one dimensional architectures with an anatase TiO2 anode by electrospinning

    NASA Astrophysics Data System (ADS)

    Arun, Nagasubramanian; Aravindan, Vanchiappan; Jayaraman, Sundaramurthy; Shubha, Nageswaran; Ling, Wong Chui; Ramakrishna, Seeram; Madhavi, Srinivasan

    2014-07-01

    We report for the first time the synthesis and extraordinary performance of a high voltage spinel LiNi0.5Mn1.5O4 fiber cathode in all one dimensional (1D) architecture. Structural and morphological features are analyzed by various characterization techniques. Li-insertion/extraction properties are evaluated in a half-cell assembly (Li/LiNi0.5Mn1.5O4) and subsequently in full-cell configuration with an anatase TiO2 fiber anode. In both half- and full-cell assemblies, gelled polyvinylidene fluoride-co-hexafluoropropylene (PVdF-HFP) is used as the separator-cum-electrolyte. All the one dimensional components used for fabricating Li-ion cells are prepared by a simple and scalable electrospinning technique. The full-cell, LiNi0.5Mn1.5O4/gelled PVdF-HFP/TiO2 delivered the reversible capacity of ~102 mA h g-1 at 0.1 C rate with an operating potential of ~2.8 V. Excellent rate capability and stable cycling profiles are noted for such a full-cell assembly with a capacity retention of ~86% after 400 cycles.

  6. Exceptional performance of a high voltage spinel LiNi0.5Mn1.5O4 cathode in all one dimensional architectures with an anatase TiO2 anode by electrospinning.

    PubMed

    Arun, Nagasubramanian; Aravindan, Vanchiappan; Jayaraman, Sundaramurthy; Shubha, Nageswaran; Ling, Wong Chui; Ramakrishna, Seeram; Madhavi, Srinivasan

    2014-08-07

    We report for the first time the synthesis and extraordinary performance of a high voltage spinel LiNi(0.5)Mn(1.5)O4 fiber cathode in all one dimensional (1D) architecture. Structural and morphological features are analyzed by various characterization techniques. Li-insertion/extraction properties are evaluated in a half-cell assembly (Li/LiNi(0.5)Mn(1.5)O4) and subsequently in full-cell configuration with an anatase TiO2 fiber anode. In both half- and full-cell assemblies, gelled polyvinylidene fluoride-co-hexafluoropropylene (PVdF-HFP) is used as the separator-cum-electrolyte. All the one dimensional components used for fabricating Li-ion cells are prepared by a simple and scalable electrospinning technique. The full-cell, LiNi(0.5)Mn(1.5)O4/gelled PVdF-HFP/TiO2 delivered the reversible capacity of ∼ 102 mA h g(-1) at 0.1 C rate with an operating potential of ∼ 2.8 V. Excellent rate capability and stable cycling profiles are noted for such a full-cell assembly with a capacity retention of ∼ 86% after 400 cycles.

  7. How Much Is the Whole Really More than the Sum of Its Parts? 1 ⊞ 1 = 2.5: Superlinear Productivity in Collective Group Actions

    PubMed Central

    Sornette, Didier; Maillart, Thomas; Ghezzi, Giacomo

    2014-01-01

    In a variety of open source software projects, we document a superlinear growth of production intensity () as a function of the number of active developers , with a median value of the exponent , with large dispersions of from slightly less than up to . For a typical project in this class, doubling of the group size multiplies typically the output by a factor , explaining the title. This superlinear law is found to hold for group sizes ranging from 5 to a few hundred developers. We propose two classes of mechanisms, interaction-based and large deviation, along with a cascade model of productive activity, which unifies them. In this common framework, superlinear productivity requires that the involved social groups function at or close to criticality, or in a “superradiance” mode, in the sense of the appearance of a cooperative process and order involving a collective mode of developers defined by the build up of correlation between the contributions of developers. In addition, we report the first empirical test of the renormalization of the exponent of the distribution of the sizes of first generation events into the renormalized exponent of the distribution of clusters resulting from the cascade of triggering over all generation in a critical branching process in the non-meanfield regime. Finally, we document a size effect in the strength and variability of the superlinear effect, with smaller groups exhibiting widely distributed superlinear exponents, some of them characterizing highly productive teams. In contrast, large groups tend to have a smaller superlinearity and less variability. PMID:25084157

  8. 10Be in late deglacial climate simulated by ECHAM5-HAM - Part 2: Isolating the solar signal from 10Be deposition

    NASA Astrophysics Data System (ADS)

    Heikkilä, U.; Shi, X.; Phipps, S. J.; Smith, A. M.

    2014-04-01

    This study investigates the effect of deglacial climate on the deposition of the solar proxy 10Be globally, and at two specific locations, the GRIP site at Summit, Central Greenland, and the Law Dome site in coastal Antarctica. The deglacial climate is represented by three 30 year time slice simulations of 10 000 BP (years before present = 1950 CE), 11 000 and 12 000 BP, compared with a preindustrial control simulation. The model used is the ECHAM5-HAM atmospheric aerosol-climate model, driven with sea-surface temperatures and sea ice cover simulated using the CSIRO Mk3L coupled climate system model. The focus is on isolating the 10Be production signal, driven by solar variability, from the weather- or climate-driven noise in the 10Be deposition flux during different stages of climate. The production signal varies at lower frequencies, dominated by the 11 year solar cycle within the 30 year timescale of these experiments. The climatic noise is of higher frequencies than 11 years during the 30 year period studied. We first apply empirical orthogonal function (EOF) analysis to global 10Be deposition on the annual scale and find that the first principal component, consisting of the spatial pattern of mean 10Be deposition and the temporally varying solar signal, explains 64% of the variability. The following principal components are closely related to those of precipitation. Then, we apply ensemble empirical decomposition (EEMD) analysis to the time series of 10Be deposition at GRIP and at Law Dome, which is an effective method for adaptively decomposing the time series into different frequency components. The low-frequency components and the long-term trend represent production and have reduced noise compared to the entire frequency spectrum of the deposition. The high-frequency components represent climate-driven noise related to the seasonal cycle of e.g. precipitation and are closely connected to high frequencies of precipitation. These results firstly show that

  9. 10Be in late deglacial climate simulated by ECHAM5-HAM - Part 2: Isolating the solar signal from 10Be deposition

    NASA Astrophysics Data System (ADS)

    Heikkilä, U.; Shi, X.; Phipps, S. J.; Smith, A. M.

    2013-10-01

    This study investigates the effect of deglacial climate on the deposition of the solar proxy 10Be globally, and at two specific locations, the GRIP site at Summit, Central Greenland, and the Law Dome site in coastal Antarctica. The deglacial climate is represented by three 30 yr time slice simulations of 10 000 BP (years before present = 1950 CE), 11 000 BP and 12 000 BP, compared with a preindustrial control simulation. The model used is the ECHAM5-HAM atmospheric aerosol-climate model, driven with sea surface temperatures and sea ice cover simulated using the CSIRO Mk3L coupled climate system model. The focus is on isolating the 10Be production signal, driven by solar variability, from the weather or climate driven noise in the 10Be deposition flux during different stages of climate. The production signal varies on lower frequencies, dominated by the 11yr solar cycle within the 30 yr time scale of these experiments. The climatic noise is of higher frequencies. We first apply empirical orthogonal functions (EOF) analysis to global 10Be deposition on the annual scale and find that the first principal component, consisting of the spatial pattern of mean 10Be deposition and the temporally varying solar signal, explains 64% of the variability. The following principal components are closely related to those of precipitation. Then, we apply ensemble empirical decomposition (EEMD) analysis on the time series of 10Be deposition at GRIP and at Law Dome, which is an effective method for adaptively decomposing the time series into different frequency components. The low frequency components and the long term trend represent production and have reduced noise compared to the entire frequency spectrum of the deposition. The high frequency components represent climate driven noise related to the seasonal cycle of e.g. precipitation and are closely connected to high frequencies of precipitation. These results firstly show that the 10Be atmospheric production signal is preserved

  10. A1.5 Fusion Performance

    SciTech Connect

    Amendt, P

    2011-03-31

    thermonuclear burn [2]. These simulations form the basis for assessing the susceptibility to hydrodynamic instability growth, target performance margins, laser backscatter induced by plasma density fluctuations within the hohlraum, and the threat spectrum emerging from the igniting capsule, e.g., spectra, fluences and anisotropy of the x rays and ions, for input into the chamber survivability calculations. The simulations follow the guidelines of a 'point design' methodology, which formally designates a well-defined milestone in concept development that meets established criteria for experimental testing. In Section 2, the 0-d analytic gain model to survey gain versus laser energy parameter space is discussed. Section 3 looks at the status of integrated hohlraum simulations and the needed improvements in laser-hohlraum coupling efficiency to meet the LIFE.2 threshold (net) target gain of {approx}60. Section 4 considers advanced hohlraum designs to well exceed the LIFE.2 design goal for satisfactory performance margins. We summarize in Sec. 5.

  11. 3. PART 1 OF 2 PART PANORAMA WITH NO. CA2724. ...

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

    3. PART 1 OF 2 PART PANORAMA WITH NO. CA-272-4. SOUTH SIDE OF VIADUCT IN REAR. LOOKING WEST FORM WEST SIDE OF RIVER. NOTE VICTORY MEMORIAL IN VIADUCT AT RIGHT CENTER REAR. - Glendale-Hyperion Viaduct, Spanning Golden State Freeway (I-5) & Los Angeles River at Glendale Boulevard, Los Angeles, Los Angeles County, CA

  12. Stability of acetyl-1-carnitine in 5% dextrose using a high-performance liquid chromatography-mass spectrometry times 2 method.

    PubMed

    Zhang, Yang; Jiang, Hongliang; Hutson, Paul

    2012-01-01

    A stability-indicating high-performance liquid chromatography-mass spectrometry times 2 method was developed to establish the stability of acetyl-l-carnitine dissolved in 5% dextrose in water; quantitation of acetyl-l-carnitine and its hydrolysis product I-carnitine was performed using this method. Acetyl-l-carnitine dissolved in water was stress-degraded at a pH range of 3 to 12, and conversion to l-carnitine was quantified over 18 hours. The method was further validated by stressing the acetyl-l-carnitine solution at 68 degrees C, 82 degrees C, and 90 degrees C for up to 10 days, yielding a temperature-dependent hydrolysis rate constant. Acetyl-l-carnitine solutions were stored at 25 degrees C and 4 degrees C to 8 degrees C for 33 days to validate the kinetics prediction. The liquid chromatography-mass spectrometry times 2 method was sensitive and specific, allowing rapid separation and simultaneous quantitation of acetyl-l-carnitine and l-carnitine. Acetyl-l-carnitine dissolved in aqueous solutions is stable at neutral to acidic pH, but unstable at pH > 9. After 1 hour storage at room temperature, only 72.6% of acetyl-l-carnitine was left at pH 11 and 4.2% left at pH 12. The kinetics relationship between temperature and rate constant was In(k) = -8650.1 /T + 20.344 (r2 = 0.9851) at pH 5.2. The time required to degrade 15% of acetyl-I-carnitine was estimated to be 38 days at 25 degrees C or 234 days at 8 degrees C, and was confirmed with actual storage stability testing. Acetyl-l-carnitine dissolved in water (pH 5.2) at concentrations of 1 and 10 mg/mL was found stable at room temperature or refrigerated for at least 33 days using the established stability-indicating method. Acetyl-l-carnitine solutions are not stable at basic pH. When reconstituted in water, acetyl-l-carnitine is stable for over 30 days at room temperature or under refrigeration.

  13. Preclinical Curriculum Characteristics and Institutional Performance on NBME Part I.

    ERIC Educational Resources Information Center

    Jones, Robert F.; And Others

    1986-01-01

    The relationship between characteristics of the preclinical curriculum and institutional performance on the Part I examination of the National Board of Medical Examiners at U.S. medical schools was analyzed. Total scheduled hours per week was the single curriculum characteristic having a positive and significant relationship with performance.…

  14. A Walk on the Human Performance Side--Part 1

    ERIC Educational Resources Information Center

    Addison, Roger M.; Haig, Carol

    2012-01-01

    Using their "license to snoop," performance architects uncover the nuances of how work gets done in an organization. This is the first of a four-part series in which each article will present a different organizational level. Typical performance issues and opportunities for each level will be discussed, and helpful models and tools will be shared.…

  15. Discovery of mixed type thymidine phosphorylase inhibitors endowed with antiangiogenic properties: synthesis, pharmacological evaluation and molecular docking study of 2-thioxo-pyrazolo[1,5-a][1,3,5]triazin-4-ones. Part II.

    PubMed

    Bera, Hriday; Ojha, Probir kumar; Tan, Bee Jen; Sun, Lingyi; Dolzhenko, Anton V; Chui, Wai-Keung; Chiu, Gigi Ngar Chee

    2014-05-06

    In our drug discovery program, a series of 2-thioxo-pyrazolo[1,5-a][1,3,5]triazin-4-ones were designed, synthesized and evaluated for their TP inhibitory potential. All the synthesized analogues conferred a varying degree of TP inhibitory activity, comparable or better than positive control, 7-deazaxanthine (7-DX, 2) (IC50 value = 42.63 μM). A systematic approach to the lead optimization identified compounds 3c and 4a as the most promising TP inhibitors, exhibiting mixed mode of enzyme inhibition. Moreover, selected compounds demonstrated the ability to attenuate the expression of the angiogenic markers (viz. MMP-9 and VEGF) in MDA-MB-231 cells at sublethal concentrations. In addition, molecular docking studies revealed the plausible binding orientation of these inhibitors towards TP, which was in accordance with the experimental results. Taken as a whole, these compounds would constitute a new direction for the design of novel TP inhibitors with promising antiangiogenic properties.

  16. Poly(2,5-dimercapto-1,3,4-thiadiazole) as a cathode for rechargeable lithium batteries with dramatically improved performance.

    PubMed

    Gao, Jie; Lowe, Michael A; Conte, Sean; Burkhardt, Stephen E; Abruña, Héctor D

    2012-07-02

    Organosulfur compounds with multiple thiol groups are promising for high gravimetric energy density electrochemical energy storage. We have synthesized a poly(2,5-dimercapto-1,3,4-thiadiazole) (PDMcT)/poly(3,4-ethylenedioxythiophene) (PEDOT) composite cathode for lithium-ion batteries with a new method and investigated its electrochemical behavior by charge/discharge cycles and cyclic voltammetry (CV) in an ether-based electrolyte. Based on a comparison of the electrochemical performance with a carbonate-based electrolyte, we found a much higher discharge capacity, but also a very attractive cycling performance of PDMcT by using a tetra(ethylene glycol) dimethyl ether (TEGDME)-based electrolyte. The first discharge capacity of the as-synthesized PDMcT/PEDOT composite approached 210 mAh g(-1) in the TEGDME-based electrolyte. CV results clearly show that the redox reactions of PDMcT are highly reversible in this TEGDME-based electrolyte. The reversible capacity remained around 120 mAh g(-1) after 20 charge/discharge cycles. With improved cycling performance and very low cost, PDMcT could become a very promising cathode material when combined with a TEGDME-based electrolyte. The poor capacity in the carbonate-based electrolyte is a consequence of the irreversible reaction of the DMcT monomer and dimer with the solvent, emphasizing the importance of electrolyte chemistry when studying molecular-based battery materials.

  17. 12 CFR 2.5 - Bank compensation.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 12 Banks and Banking 1 2012-01-01 2012-01-01 false Bank compensation. 2.5 Section 2.5 Banks and... compensation. (a) Nothing contained in this part prohibits a bank employee, officer, director, or principal... turn over to the bank as compensation all income received from the sale of the credit life insurance...

  18. 12 CFR 2.5 - Bank compensation.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 12 Banks and Banking 1 2014-01-01 2014-01-01 false Bank compensation. 2.5 Section 2.5 Banks and... compensation. (a) Nothing contained in this part prohibits a bank employee, officer, director, or principal... turn over to the bank as compensation all income received from the sale of the credit life insurance...

  19. Higher thermoelectric performance of Zintl phases (Eu0.5Yb0.5)1−xCaxMg2Bi2 by band engineering and strain fluctuation

    PubMed Central

    Shuai, Jing; Geng, Huiyuan; Lan, Yucheng; Zhu, Zhuan; Wang, Chao; Liu, Zihang; Bao, Jiming; Chu, Ching-Wu; Sui, Jiehe; Ren, Zhifeng

    2016-01-01

    Complex Zintl phases, especially antimony (Sb)-based YbZn0.4Cd1.6Sb2 with figure-of-merit (ZT) of ∼1.2 at 700 K, are good candidates as thermoelectric materials because of their intrinsic “electron–crystal, phonon–glass” nature. Here, we report the rarely studied p-type bismuth (Bi)-based Zintl phases (Ca,Yb,Eu)Mg2Bi2 with a record thermoelectric performance. Phase-pure EuMg2Bi2 is successfully prepared with suppressed bipolar effect to reach ZT ∼ 1. Further partial substitution of Eu by Ca and Yb enhanced ZT to ∼1.3 for Eu0.2Yb0.2Ca0.6Mg2Bi2 at 873 K. Density-functional theory (DFT) simulation indicates the alloying has no effect on the valence band, but does affect the conduction band. Such band engineering results in good p-type thermoelectric properties with high carrier mobility. Using transmission electron microscopy, various types of strains are observed and are believed to be due to atomic mass and size fluctuations. Point defects, strain, dislocations, and nanostructures jointly contribute to phonon scattering, confirmed by the semiclassical theoretical calculations based on a modified Debye–Callaway model of lattice thermal conductivity. This work indicates Bi-based (Ca,Yb,Eu)Mg2Bi2 is better than the Sb-based Zintl phases. PMID:27385824

  20. Forward flight of birds revisited. Part 1: aerodynamics and performance.

    PubMed

    Iosilevskii, G

    2014-10-01

    This paper is the first part of the two-part exposition, addressing performance and dynamic stability of birds. The aerodynamic model underlying the entire study is presented in this part. It exploits the simplicity of the lifting line approximation to furnish the forces and moments acting on a single wing in closed analytical forms. The accuracy of the model is corroborated by comparison with numerical simulations based on the vortex lattice method. Performance is studied both in tethered (as on a sting in a wind tunnel) and in free flights. Wing twist is identified as the main parameter affecting the flight performance-at high speeds, it improves efficiency, the rate of climb and the maximal level speed; at low speeds, it allows flying slower. It is demonstrated that, under most circumstances, the difference in performance between tethered and free flights is small.

  1. Performance of n-in-p Pixel Detectors Irradiated at Fluences up to 5x1015 neq/cm2 for the Future ATLAS Upgrades

    NASA Astrophysics Data System (ADS)

    Macchiolo, A.; Gallrapp, C.; La Rosa, A.; Nisius, R.; Pernegger, H.; Richter, R. H.; Weigell, P.

    We present the results of the characterization of novel n-in-p planar pixel detectors, designed for the future upgrades of the ATLAS pixel system. N-in-p silicon devices are a promising candidate to replace the n-in-n sensors thanks to their radiation hardness and cost effectiveness, that allow for enlarging the area instrumented with pixel detectors. The n-in-p modules presented here are composed of pixel sensors produced by CiS connected by bump-bonding to the ATLAS readout chip FE-I3. The characterization of these devices has been performed with the ATLAS pixel read-out systems, TurboDAQ and USBPIX, before and after irradiation with 25 MeV protons and neutrons up to a fluence of 5x1015 neq/cm2. The charge collection measurements carried out with radioactive sources have proven the feasibility of employing this kind of detectors up to these particle fluences. The collected charge has been measured to be for any fluence in excess of twice the value of the FE-I3 threshold, tuned to 3200 e. The first results from beam test data with 120 GeV pions at the CERN-SPS are also presented, demonstrating a high tracking efficiency before irradiation and a high collected charge for a device irradiated at 1015 neq/cm2. This work has been performed within the framework of the RD50 Collaboration.

  2. Sputtering Deposition of Sandwich-Structured V2O5/Metal (V, W)/V2O5 Multilayers for the Preparation of High-Performance Thermally Sensitive VO2 Thin Films with Selectivity of VO2 (B) and VO2 (M) Polymorph.

    PubMed

    Liu, Hengwu; Wan, Dongyun; Ishaq, Ahmad; Chen, Lanli; Guo, Beibei; Shi, Siqi; Luo, Hongjie; Gao, Yanfeng

    2016-03-01

    For specific application to an uncooled infrared detector, VO2 thin films should have a series of characteristics including purposefully chosen polymorphs, accurate stoichiometry, phase stabilization, a high temperature-coefficient of resistance (TCR), and suitable square-resistance. This work reports controllable preparation of high-performance VO2 films via post annealing of a sandwich-structured V2O5/metal (V, W)/V2O5 multilayer precursor, which was deposited by RF magnetron sputtering. This sandwich structure can dynamically regulate oxygen contents and doping element levels in the films, enabling us to achieve accurate regulation of stoichiometry and polymorphs. The precursor films undergo a B to M phase transition depending on the quantity of the metal layers. At the thickness of the metal layer below a limitation, the resulting film after heat treatment was VO2 (B), and above the limitation, the product was VO2 (M). The optical modulation of the VO2 (M) in the near-infrared region can be tuned from 1.2 to 39.8% (ΔT2000 nm). TCR values can range from -1.89 to -4.29%/K and the square-resistances at room temperature (R0) from 69.68 to 12.63 kΩ. The simplicity in phase regulation of the present method and the superior optical and electrical properties of the films may allow its wide applications in thermo-opto-electro sensing devices.

  3. A portable X-band front-end test package for beam-waveguide antenna performance evaluation. Part 2: Tests on the antenna

    NASA Technical Reports Server (NTRS)

    Otoshi, T. Y.; Stewart, S. R.; Franco, M. M.

    1991-01-01

    Results are given for an X-band (8.45 GHz) test package for testing the new 34-m beam-waveguide antenna at Goldstone in an 'on-the-antenna' configuration. Included are X-band zenith noise temperature values and tipping-curve data obtained at the Cassegrain focal point F1 as well as at the pedestal room focal point F3. Subreflector Z-defocus test results for both F1 and F3 are also presented. The X-band test package operated well in all of the different test configurations and exceeded expected performance.

  4. Single-stage experimental evaluation of tandem-airfoil rotor and stator blading for compressors. Part 2: Data and performance for stage A

    NASA Technical Reports Server (NTRS)

    Brent, J. A.

    1972-01-01

    Stage A, comprised of a conventional rotor and stator, was designed and tested to establish a performance baseline for comparison with the results of subsequent tests planned for two tandem-blade stages. The rotor had an inlet hub/tip ratio of 0.8 and a design tip velocity of 757 ft/sec. At design equivalent rotor speed, rotor A achieved a maximum adiabatic efficiency of 85.1 percent at a pressure ratio of 1.29. The stage maximum adiabatic efficiency was 78.6 percent at a pressure ratio of 1.27.

  5. 12. PART 2 OR PART 2 PANORAMA WITH NO. CA28011 ...

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

    12. PART 2 OR PART 2 PANORAMA WITH NO. CA-280-11 OF FOURTH STREET VIADUCT WEST END OVERCROSSING AT SANTA FE AVENUE. LOOKING SOUTHEAST. - Fourth Street Viaduct, Spanning Los Angeles River, Los Angeles, Los Angeles County, CA

  6. Side-chain Engineering of Benzo[1,2-b:4,5-b’]dithiophene Core-structured Small Molecules for High-Performance Organic Solar Cells

    PubMed Central

    Yin, Xinxing; An, Qiaoshi; Yu, Jiangsheng; Guo, Fengning; Geng, Yongliang; Bian, Linyi; Xu, Zhongsheng; Zhou, Baojing; Xie, Linghai; Zhang, Fujun; Tang, Weihua

    2016-01-01

    Three novel small molecules have been developed by side-chain engineering on benzo[1,2-b:4,5-b’]dithiophene (BDT) core. The typical acceptor-donor-acceptor (A-D-A) structure is adopted with 4,8-functionalized BDT moieties as core, dioctylterthiophene as π bridge and 3-ethylrhodanine as electron-withdrawing end group. Side-chain engineering on BDT core exhibits small but measurable effect on the optoelectronic properties of small molecules. Theoretical simulation and X-ray diffraction study reveal the subtle tuning of interchain distance between conjugated backbones has large effect on the charge transport and thus the photovoltaic performance of these molecules. Bulk-heterojunction solar cells fabricated with a configuration of ITO/PEDOT:PSS/SM:PC71BM/PFN/Al exhibit a highest power conversion efficiency (PCE) of 6.99% after solvent vapor annealing. PMID:27140224

  7. Side-chain Engineering of Benzo[1,2-b:4,5-b']dithiophene Core-structured Small Molecules for High-Performance Organic Solar Cells.

    PubMed

    Yin, Xinxing; An, Qiaoshi; Yu, Jiangsheng; Guo, Fengning; Geng, Yongliang; Bian, Linyi; Xu, Zhongsheng; Zhou, Baojing; Xie, Linghai; Zhang, Fujun; Tang, Weihua

    2016-05-03

    Three novel small molecules have been developed by side-chain engineering on benzo[1,2-b:4,5-b']dithiophene (BDT) core. The typical acceptor-donor-acceptor (A-D-A) structure is adopted with 4,8-functionalized BDT moieties as core, dioctylterthiophene as π bridge and 3-ethylrhodanine as electron-withdrawing end group. Side-chain engineering on BDT core exhibits small but measurable effect on the optoelectronic properties of small molecules. Theoretical simulation and X-ray diffraction study reveal the subtle tuning of interchain distance between conjugated backbones has large effect on the charge transport and thus the photovoltaic performance of these molecules. Bulk-heterojunction solar cells fabricated with a configuration of ITO/PEDOT:PSS/SM:PC71BM/PFN/Al exhibit a highest power conversion efficiency (PCE) of 6.99% after solvent vapor annealing.

  8. Side-chain Engineering of Benzo[1,2-b:4,5-b’]dithiophene Core-structured Small Molecules for High-Performance Organic Solar Cells

    NASA Astrophysics Data System (ADS)

    Yin, Xinxing; An, Qiaoshi; Yu, Jiangsheng; Guo, Fengning; Geng, Yongliang; Bian, Linyi; Xu, Zhongsheng; Zhou, Baojing; Xie, Linghai; Zhang, Fujun; Tang, Weihua

    2016-05-01

    Three novel small molecules have been developed by side-chain engineering on benzo[1,2-b:4,5-b’]dithiophene (BDT) core. The typical acceptor-donor-acceptor (A-D-A) structure is adopted with 4,8-functionalized BDT moieties as core, dioctylterthiophene as π bridge and 3-ethylrhodanine as electron-withdrawing end group. Side-chain engineering on BDT core exhibits small but measurable effect on the optoelectronic properties of small molecules. Theoretical simulation and X-ray diffraction study reveal the subtle tuning of interchain distance between conjugated backbones has large effect on the charge transport and thus the photovoltaic performance of these molecules. Bulk-heterojunction solar cells fabricated with a configuration of ITO/PEDOT:PSS/SM:PC71BM/PFN/Al exhibit a highest power conversion efficiency (PCE) of 6.99% after solvent vapor annealing.

  9. Biological Behaviour and Enhanced Anticorrosive Performance of the Nitrided Superelastic Ti-23Nb-0.7Ta-2Zr-0.5N Alloy

    PubMed Central

    Mitran, Valentina; Vasilescu, Cora; Drob, Silviu Iulian; Osiceanu, Petre; Calderon-Moreno, Jose Maria; Tabirca, Mariana-Cristina; Gordin, Doina-Margareta; Gloriant, Thierry; Cimpean, Anisoara

    2015-01-01

    The influence of gas nitriding surface treatment on the superelastic Ti-23Nb-0.7Ta-2Zr-0.5N alloy was evaluated. A thorough characterization of bare and nitrided Ti-based alloy and pure Ti was performed in terms of surface film composition and morphology, electrochemical behaviour, and short term osteoblast response. XPS analysis showed that the nitriding treatment strongly influenced the composition (nitrides and oxynitrides) and surface properties both of the substrate and of the bulk alloy. SEM images revealed that the nitrided surface appears as a similar dotted pattern caused by the formation of N-rich domains coexisting with less nitrided domains, while before treatment only topographical features could be observed. All the electrochemical results confirmed the high chemical stability of the nitride and oxynitride coating and the superiority of the applied treatment. The values of the corrosion parameters ascertained the excellent corrosion resistance of the coated alloy in the real functional conditions from the human body. Cell culture experiments with MG63 osteoblasts demonstrated that the studied biomaterials do not elicit any toxic effects and support cell adhesion and enhanced cell proliferation. Altogether, these data indicate that the nitrided Ti-23Nb-0.7Ta-2Zr-0.5N alloy is the most suitable substrate for application in bone implantology. PMID:26583096

  10. The responses of selected terrestrial plants to short (<12 days) and long term (2, 4 and 6 weeks) hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) exposure. Part I: Growth and developmental effects.

    PubMed

    Winfield, Linda E; Rodgers, John H; D'Surney, Stephen J

    2004-05-01

    Soils contaminated with explosive materials like hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) is a concern nation-wide on military installations and sites where explosives are manufactured, stored, or disposed. Terrestrial plants are a vital group of receptor organism, yet limited published information is available on the potential impacts of RDX exposure in terrestrial plants. This research comprised the initial phases in the development of a short-term (<12 days) screening experiment for assessing the environmental impacts of RDX exposure in terrestrial plants. Fifteen plants (dicots and monocots) were exposed to three soils amended with 0-4000 microg g(-1) of RDX during the short-term screening experiments. Growth responses (maximum root and shoot lengths, percent emergence) and adverse developmental effects were the assessment endpoints. Sunflower was identified as the most RDX sensitive plant and selected for evaluation during the long-term (2, 4, and 6 weeks) experiments. Two life stages of sunflower (embryos and 2-week old seedlings) were exposed to Grenada soil amended with 0-100 microg g(-1) of RDX. The assessment endpoints during the long-term experiments included: biomass, maximum shoot and root length, root bio-volume, maximum stem diameter, number of leaves, and adverse developmental effects. Statistically significant differences were measured in several of the growth parameters following the short and long term exposure studies, however there were no consistent patterns. The consistent indicators of detrimental impacts from RDX exposure were the adverse developmental effects observed, regardless of life stage, soil type, or exposure duration. Typically, more adverse developmental effects were observed in dicots than monocots. The efficacy of the short-term screening experiments for estimating the impacts of long-term RDX exposure was validated.

  11. Evaluation of methyl methanesulfonate, 2,6-diaminotoluene and 5-fluorouracil: Part of the Japanese center for the validation of alternative methods (JaCVAM) international validation study of the in vivo rat alkaline comet assay.

    PubMed

    Plappert-Helbig, Ulla; Junker-Walker, Ursula; Martus, Hans-Joerg

    2015-07-01

    As a part of the Japanese Center for the Validation of Alternative Methods (JaCVAM)-initiative international validation study of the in vivo rat alkaline comet assay (comet assay), we examined methyl methanesulfonate, 2,6-diaminotoluene, and 5-fluorouracil under coded test conditions. Rats were treated orally with the maximum tolerated dose (MTD) and two additional descending doses of the respective compounds. In the MMS treated groups liver and stomach showed significantly elevated DNA damage at each dose level and a significant dose-response relationship. 2,6-diaminotoluene induced significantly elevated DNA damage in the liver at each dose and a statistically significant dose-response relationship whereas no DNA damage was obtained in the stomach. 5-fluorouracil did not induce DNA damage in either liver or stomach.

  12. Prediction of Sucessful Nursing Performance. Part III and Part IV. Health Manpower References.

    ERIC Educational Resources Information Center

    Schwirian, Patricia M.; And Others

    As part of the three-phase national study to provide information to form a basis for predictions about successful nursing performance, a review was conducted of the performance of nursing school graduates at their first jobs. In March, 1976, questionnaires were mailed to a cohort of 1975 graduates who were selected by school officials as having…

  13. Clothing for Sports: Part 2: Stridalongapos Loses Shorts, Wins in Style

    PubMed Central

    Schamberger, Wolf

    1985-01-01

    The choice of clothing for sports must take into account the climate, movement, ability to enhance athletic performance, safety and comfort. Part 2 of this two-part article describes the clothing needed for running, cycling, skiing, windsurfing, triathlon, aerobic dancing and hot air ballooning. ImagesFig. 1Fig. 2Fig. 3Fig. 4Fig. 5Fig. 6Fig. 7Fig. 8Fig. 9Fig. 10 PMID:21274232

  14. Benchmarking boiler tube failures - Part 2

    SciTech Connect

    James Patrick; Robert Oldani; Daryl Von Behren

    2005-12-01

    Part 1 of this article characterised the EUCG (formerly the Electric Utility Cost Group) Fossil Productivity Committee's study of 14 utilities with 219 baseload coal-fired steam plants (about 20% of the total number of coal plants in the USA) and their experience fighting tube leaks. Part 2 characterizes the sample of plants studied and summarises the data at the fleet level. The next study is scheduled for summer 2006. 3 figs., 2 tabs.

  15. Structure activity relationship of C-2 ether substituted 1,5-naphthyridine analogs of oxabicyclooctane-linked novel bacterial topoisomerase inhibitors as broad-spectrum antibacterial agents (Part-5).

    PubMed

    Singh, Sheo B; Kaelin, David E; Meinke, Peter T; Wu, Jin; Miesel, Lynn; Tan, Christopher M; Olsen, David B; Lagrutta, Armando; Fukuda, Hideyuki; Kishii, Ryuta; Takei, Masaya; Takeuchi, Tomoko; Takano, Hisashi; Ohata, Kohei; Kurasaki, Haruaki; Nishimura, Akinori; Shibata, Takeshi; Fukuda, Yasumichi

    2015-09-01

    Oxabicyclooctane linked novel bacterial topoisomerase inhibitors (NBTIs) are new class of recently reported broad-spectrum antibacterial agents. They target bacterial DNA gyrase and topoisomerase IV and bind to a site different than quinolones. They show no cross-resistance to known antibiotics and provide opportunity to combat drug-resistant bacteria. A structure activity relationship of the C-2 substituted ether analogs of 1,5-naphthyridine oxabicyclooctane-linked NBTIs are described. Synthesis and antibacterial activities of a total of 63 analogs have been summarized representing alkyl, cyclo alkyl, fluoro alkyl, hydroxy alkyl, amino alkyl, and carboxyl alkyl ethers. All compounds were tested against three key strains each of Gram-positive and Gram-negative bacteria as well as for hERG binding activities. Many key compounds were also tested for the functional hERG activity. Six compounds were evaluated for efficacy in a murine bacteremia model of Staphylococcus aureus infection. Significant tolerance for the ether substitution (including polar groups such as amino and carboxyl) at C-2 was observed for S. aureus activity however the same was not true for Enterococcus faecium and Gram-negative strains. Reduced clogD generally showed reduced hERG activity and improved in vivo efficacy but was generally associated with decreased overall potency. One of the best compounds was hydroxy propyl ether (16), which mainly retained the potency, spectrum and in vivo efficacy of AM8085 associated with the decreased hERG activity and improved physical property.

  16. Study of a Multi-Phase Hybrid Heat Exchanger-Reactor (HEX Reactor): Part 2 - Numerical Prediction of Thermal Performance (Postprint)

    DTIC Science & Technology

    2014-01-01

    Santacesaria et al. [2] reported higher yields of biodiesel at relatively low Re, which they credited to strong localized micromixing and turbulence. Edge et...D. Verde, R. Turco, A. Bertola, Use of a corrugated plates heat exchanger reactor for obtaining biodiesel with very high productivity, Energy Fuels

  17. Lubricant Evaluation and Performance 2

    DTIC Science & Technology

    1994-02-01

    POWER DIRECTORATE WRIGHT LABORATORY AIR FORCE MATERIEL COMMAND WRIGHT-PATrERSON AIR FORCE BASE , OHIO 45433-7103 94 5 10 011 NOTICE When government...INTRODUCTION I R DEVELOPMENT OF IMPROVED METHODS FOR MEASURING LUBRICANT PERFORMANCE 3 1 OXIDATIVE STABILITY OF ESTER BASE LUBRICANTS 3 a. Introduction 3 b...7) Conclusions 134 i. Stability Testing of Cyclophosphazene Based Fluids 134 (1) Introduction 134 (2) Effect of Metal Specimens 134 (3) Effect of a

  18. Forward flight of birds revisited. Part 1: aerodynamics and performance

    PubMed Central

    Iosilevskii, G.

    2014-01-01

    This paper is the first part of the two-part exposition, addressing performance and dynamic stability of birds. The aerodynamic model underlying the entire study is presented in this part. It exploits the simplicity of the lifting line approximation to furnish the forces and moments acting on a single wing in closed analytical forms. The accuracy of the model is corroborated by comparison with numerical simulations based on the vortex lattice method. Performance is studied both in tethered (as on a sting in a wind tunnel) and in free flights. Wing twist is identified as the main parameter affecting the flight performance—at high speeds, it improves efficiency, the rate of climb and the maximal level speed; at low speeds, it allows flying slower. It is demonstrated that, under most circumstances, the difference in performance between tethered and free flights is small. PMID:26064548

  19. SCALE: A modular code system for performing standardized computer analyses for licensing evaluation. Functional modules F1--F8 -- Volume 2, Part 1, Revision 4

    SciTech Connect

    Greene, N.M.; Petrie, L.M.; Westfall, R.M.; Bucholz, J.A.; Hermann, O.W.; Fraley, S.K.

    1995-04-01

    SCALE--a modular code system for Standardized Computer Analyses Licensing Evaluation--has been developed by Oak Ridge National Laboratory at the request of the US Nuclear Regulatory Commission. The SCALE system utilizes well-established computer codes and methods within standard analysis sequences that (1) allow an input format designed for the occasional user and/or novice, (2) automate the data processing and coupling between modules, and (3) provide accurate and reliable results. System development has been directed at problem-dependent cross-section processing and analysis of criticality safety, shielding, heat transfer, and depletion/decay problems. Since the initial release of SCALE in 1980, the code system has been heavily used for evaluation of nuclear fuel facility and package designs. This revision documents Version 4.2 of the system. The manual is divided into three volumes: Volume 1--for the control module documentation; Volume 2--for functional module documentation; and Volume 3--for documentation of the data libraries and subroutine libraries.

  20. In situ growth and performance of spherical Fe2F5·H2O nanoparticles in multi-walled carbon nanotube network matrix as cathode material for sodium ion batteries

    NASA Astrophysics Data System (ADS)

    Jiang, Miaoling; Wang, Xianyou; Hu, Hai; Wei, Shuangying; Fu, Yanqing; Shen, Yongqiang

    2016-06-01

    The multi-wall carbon nanotubes wired spherical Fe2F5·H2O particles (MWCNTs-wired Fe2F5·H2O) are synthesized via an ionic liquid (IL) based precipitation route as the cathode material for sodium ion batteries (SIBs), in which the IL 1-butyl-2,3-dimethylimidazolium tetrafluoroborate (BMMimBF4) is used as environmentally friendly fluorine source, appropriate solvent and binder. The structure, morphology and electrochemical performance of the as-prepared samples have been characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), charge/discharge tests, cyclic voltammetric measurements (CV). The results show that the MWCNTs-wired spherical Fe2F5·H2O particles present the cubic crystal structure with the cell volume of 1.12821 nm3. Moreover, the SEM and TEM images show that the spherical Fe2F5·H2O particles and disentangled MWCNTs are intertwined together to form a chestnut-like micrometer-sized aggregates. Furthermore, the MWCNTs-wired spherical Fe2F5·H2O particles show a high initial discharge capacity of 251.2 mAh g-1 at 20 mA g-1 in the voltage of 1.0-4.0 V, and the corresponding reversible discharge capacity is 197.4 mAh g-1. Comparing with bare Fe2F5·H2O, the discharge capacity of the MWCNTs-wired spherical Fe2F5·H2O particles still can maintain about 115.0 mAh g-1 after 50 cycles when the current density increased to 100 mA g-1, and the corresponding capacity retention reaches 90.2%.

  1. Strategies to increase laser damage performance of Ta2O5/SiO2 mirrors by modifications of the top layer design.

    PubMed

    Schiltz, Drew; Patel, Dinesh; Baumgarten, Cory; Reagan, Brendan A; Rocca, Jorge J; Menoni, Carmen S

    2017-02-01

    Ta2O5/SiO2 high reflection (HR) interference coatings for λ∼1  μm offer superior performance at high irradiance conditions. However, these coatings are not good candidates for high peak power conditions in comparison to HfO2/SiO2 multilayer stacks. Here we show that the modification of the top layers design of a quarter wave Ta2O5/SiO2 high reflector leads to 4-5 fold increase in the laser damage fluence compared to a quarter wave (Ta2O5/SiO2)15 when tested at λ=1.03  μm using pulse durations of 0.19 and 4 ns and peak power densities of 43.5 and 216  GW/cm2. One of the designs achieved a laser damage threshold fluence of 174  J/cm2 at 4 ns, which is 10% higher than that of a HfO2/SiO2 quarter wave design.

  2. Substrate-free fabrication of self-supported V2O5 nanobelt arrays by a low-temperature solvothermal method with high electrochemical performance.

    PubMed

    Xu, Haitao; Zhang, Huijuan; Liu, Li; Fang, Ling; Wang, Yu

    2016-08-05

    In the designed synthesis, self-supported NH4V3O8 nanobelt arrays were prepared via a low-temperature solvothermal method. Then the NH4V3O8 nanobelt arrays were calcined in air atmosphere. Finally, a self-supported pattern of oriented V2O5 nanobelts was obtained for the first time. Further characterization methods certified that the growth direction of NH4V3O8 nanobelts was perpendicular to the orientation plane of self-formed NH4V3O8 sheet-like substrates. As a result, the nanobelts should stretch easily on the sheet-like substrate in an oriented manner. We prove that the solvent of ethanol plays a key role in the reaction and crystal growth process. It balances the two competing oxolation and olation reactions. Furthermore, the unique pattern served as high performance a lithium-ion battery and supercapacitor. Overall, the excellent electrochemical performances, for example, outstanding rate stability, remarkable cycling capacitance and ultrahigh capacity verify that the self-supported alignments have great potential applications in lithium-ion batteries and supercapacitors.

  3. Substrate-free fabrication of self-supported V2O5 nanobelt arrays by a low-temperature solvothermal method with high electrochemical performance

    NASA Astrophysics Data System (ADS)

    Xu, Haitao; Zhang, Huijuan; Liu, Li; Fang, Ling; Wang, Yu

    2016-08-01

    In the designed synthesis, self-supported NH4V3O8 nanobelt arrays were prepared via a low-temperature solvothermal method. Then the NH4V3O8 nanobelt arrays were calcined in air atmosphere. Finally, a self-supported pattern of oriented V2O5 nanobelts was obtained for the first time. Further characterization methods certified that the growth direction of NH4V3O8 nanobelts was perpendicular to the orientation plane of self-formed NH4V3O8 sheet-like substrates. As a result, the nanobelts should stretch easily on the sheet-like substrate in an oriented manner. We prove that the solvent of ethanol plays a key role in the reaction and crystal growth process. It balances the two competing oxolation and olation reactions. Furthermore, the unique pattern served as high performance a lithium-ion battery and supercapacitor. Overall, the excellent electrochemical performances, for example, outstanding rate stability, remarkable cycling capacitance and ultrahigh capacity verify that the self-supported alignments have great potential applications in lithium-ion batteries and supercapacitors.

  4. An investigation, over the range of conditions occurring in radiation processing plants, of the performance of routine dosimeters of the type based on polymethyl methacrylate, part 2

    NASA Astrophysics Data System (ADS)

    Barett, J. H.; Sharpe, P. H. G.; Stuart, I. P.

    1981-01-01

    Polymethyl methacrylate (Perspex) in the form of thin strips is used as a dosimeter in the 5 to 50kGy range. Two distinct types of systems were developed, both of which depend on a radiation induced change in optical absorption as the means of assessing absorbed dose. Perspex HX(+) is, in principle, the simpler of the systems. Polymerization of a monomer without additives is initiated by benzoyl peroxide and is continued until a specified (low) amount of residual monomer remains. On irradiation degradation products of the polymer build up in the matrix and optical density measurement in the 300 to 320 nm region allows their concentration to be determined. Red 4034 Perspex typifies the second type of system although other formulations were developed. Dye molecules are incorporated into the polymer during manufacture and on irradiation polymer radicals react with dye molecules to produce optical absorption in the visible region of the spectrum (600 to 650 nm in the case of Red 4034).

  5. Effect of Chemistry and Particle Size on the Performance of Calcium Disilicide Primers. Part 1 - Synthesis of Calcium Silicide (CaSi2) by Rotary Atomization

    DTIC Science & Technology

    2010-02-01

    refs. 8 and 9); electrolysis (refs. 10 and 11); calcium hydride (CaH2) and Si (ref. 12); SiC and CaO (ref. 13); and combustion synthesis (ref. 14...obtained using a goiniometer (Phillips Model PW 3040, Phillips, Eindhoven, the Netherlands) using copper (Cu) K„ radiation (X - 1.54183 A) with a graphite...34 Electrolysis of Molten Alkali and Alkaline Earth Silicates." Bull. Soc. Chim., 6,206, 1939. 12. Louis, V. and Franck, H. H., "Silicide of Calcium," Z. Anorq

  6. Plasma diagnostics package. Volume 2: Spacelab 2 section, part A

    NASA Technical Reports Server (NTRS)

    Pickett, Jolene S. (Compiler); Frank, L. A. (Compiler); Kurth, W. S. (Compiler)

    1988-01-01

    This volume (2), which consists of two parts (A and B), of the Plasma Diagnostics Package (PDP) Final Science Report contains a summary of all of the data reduction and scientific analyses which were performed using PDP data obtained on STS-51F as a part of the Spacelab 2 (SL-2) payload. This work was performed during the period of launch, July 29, l985, through June 30, l988. During this period the primary data reduction effort consisted of processing summary plots of the data received by 12 of the 14 instruments located on the PDP and submitting these data to the National Space Science Data Center (NSSDC). The scientific analyses during the performance period consisted of follow-up studies of shuttle orbiter environment and orbiter/ionosphere interactions and various plasma particle and wave studies which dealt with data taken when the PDP was on the Remote Manipulator System (RMS) arm and when the PDP was in free flight. Of particular interest during the RMS operations and free flight were the orbiter wake studies and joint studies of beam/plasma interactions with the SL-2 Fast Pulse Electron Generator (FPEG) of the Vehicle Charging and Potential Investigation (VCAP). Internal reports, published papers and presentations which involve PDP/SL-2 data are listed in Sections 3 and 4. A PDP/SL-2 scientific results meeting was held at the University of Iowa on June 10, l986. This meeting was attended by most of the PDP and VCAP investigators and provided a forum for discussing and comparing the various results, particularly with regard to the PDP free flight.

  7. On the performance of a semi-continuous PM 2.5 sulphate and nitrate instrument under high loadings of particulate and sulphur dioxide

    NASA Astrophysics Data System (ADS)

    Wu, Wai Shing; Wang, Tao

    The need for highly time-resolved data on atmospheric aerosol composition has prompted the development of several semi-continuous techniques in recent years. It is necessary to evaluate the performance of these new techniques under different meteorological and chemical conditions. We report on the results of intercomparison between a new commercial PM 2.5 semi-continuous sulphate and nitrate instrument (AIM, URG9000B) and filter-based technique. The study was carried out in the summer of 2005 in two polluted suburban/rural areas near Shanghai and Beijing, China, yielding unique results on the performance of this instrument in more polluted environments compared to most of the previously reported studies. The two methods had a good ( R2>0.67) overall correlation for sulphate and nitrate, but showed discrepancies in absolute concentrations. At low levels of sulphate (<20 μg m -3) and SO 2 (<30 ppbv), the AIM data agreed with the filter result in Beijing (AIM=0.97×filter+0.60, R2=0.94). However, the semi-continuous instrument gave much higher sulphate values at high SO 2 concentrations (in Shanghai), which was due to a positive interference from SO 2 that broke through the denuder. At high sulphate loading, on the other hand, the AIM gave a much smaller sulphate reading, which was apparently due to an insufficient supply of water vapor to dissolve all the soluble ions under high aerosol loadings. For nitrate, while the two methods showed a good agreement in Shanghai (AIM=0.83×filter+0.00, R2=0.96), evaporative loss from the filters at high temperatures and negative bias in the AIM at high particle loading complicated the correlation in Beijing. Our study points out the need for careful evaluation and modification of the AIM for use in highly polluted environments. Under clean to moderately polluted conditions, the AIM can provide useful, highly time-resolved sulphate and nitrate data.

  8. Influence of Photoactive Layer Structure on Device Performance of Poly(2-methoxy-5-(2-ethylhexyloxy)- 1,4-phenylene vinylene)-CuInS2/ZnO Solar Cells.

    PubMed

    Yue, Wenjin; Sun, Wenshan; Wang, Songming; Zhang, Guoqiang; Lan, Mingyang; Nie, Guangjun

    2015-06-01

    This paper reported ternary MEH-PPV-CuInS2/ZnO solar cells, which were fabricated with the mixture of poly(2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylene vinylene) (MEH-PPV) and CuInS2 quantum dots (QDs) as photovoltaic layer and ZnO nanorod arrays (ZnO-NAs) as electron acceptor. The effects of photoactive layer structure (e.g., the change of spinning rate, thermal annealing temperature, annealing order and annealing method) on device performance are observed, and devices are measured by steady current-voltage (J-V) curve under the monochromic illumination at 470 nm. Results showed that the spinning rate of photoactive layer at 2000 rpm obtained the optimum thickness, moreover, solvent annealing firstly then the deposition of the positive electrode, finally thermal annealing at 140 degrees C contributing to the better reorganization for polymer and CuInS2 QDs to form the more stable phase-segregated state in the photovoltaic layer in the MEH-PPV-CuInS2/ZnO-NAs solar cells, obtaining the maximum power conversion efficiency of 2.54% under the monochromic illumination at 470 nm.

  9. 5 CFR 1320.2 - Effect.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 5 Administrative Personnel 3 2012-01-01 2012-01-01 false Effect. 1320.2 Section 1320.2... PUBLIC § 1320.2 Effect. (a) Except as provided in paragraph (b) of this section, this part takes effect on October 1, 1995. (b)(1) In the case of a collection of information for which there is in effect...

  10. 5 CFR 1320.2 - Effect.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 5 Administrative Personnel 3 2010-01-01 2010-01-01 false Effect. 1320.2 Section 1320.2... PUBLIC § 1320.2 Effect. (a) Except as provided in paragraph (b) of this section, this part takes effect on October 1, 1995. (b)(1) In the case of a collection of information for which there is in effect...

  11. 5 CFR 1320.2 - Effect.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 5 Administrative Personnel 3 2011-01-01 2011-01-01 false Effect. 1320.2 Section 1320.2... PUBLIC § 1320.2 Effect. (a) Except as provided in paragraph (b) of this section, this part takes effect on October 1, 1995. (b)(1) In the case of a collection of information for which there is in effect...

  12. 5 CFR 1320.2 - Effect.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 5 Administrative Personnel 3 2014-01-01 2014-01-01 false Effect. 1320.2 Section 1320.2... PUBLIC § 1320.2 Effect. (a) Except as provided in paragraph (b) of this section, this part takes effect on October 1, 1995. (b)(1) In the case of a collection of information for which there is in effect...

  13. 5 CFR 1320.2 - Effect.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 5 Administrative Personnel 3 2013-01-01 2013-01-01 false Effect. 1320.2 Section 1320.2... PUBLIC § 1320.2 Effect. (a) Except as provided in paragraph (b) of this section, this part takes effect on October 1, 1995. (b)(1) In the case of a collection of information for which there is in effect...

  14. 40 CFR Appendix A-3 to Part 60 - Test Methods 4 through 5I

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 8 2012-07-01 2012-07-01 false Test Methods 4 through 5I A Appendix A-3 to Part 60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES (CONTINUED) Pt. 60, App. A-3 Appendix A-3 to Part 60—Test Methods 4 through 5I Method...

  15. 40 CFR Appendix A-3 to Part 60 - Test Methods 4 through 5I

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 7 2011-07-01 2011-07-01 false Test Methods 4 through 5I A Appendix A-3 to Part 60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES (CONTINUED) Pt. 60, App. A-3 Appendix A-3 to Part 60—Test Methods 4 through 5I Link to...

  16. 40 CFR Appendix A-3 to Part 60 - Test Methods 4 through 5I

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 8 2013-07-01 2013-07-01 false Test Methods 4 through 5I A Appendix A-3 to Part 60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES (CONTINUED) Pt. 60, App. A-3 Appendix A-3 to Part 60—Test Methods 4 through 5I Method...

  17. 40 CFR Appendix A-3 to Part 60 - Test Methods 4 through 5I

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 40 Protection of Environment 8 2014-07-01 2014-07-01 false Test Methods 4 through 5I A Appendix A-3 to Part 60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES (CONTINUED) Pt. 60, App. A-3 Appendix A-3 to Part 60—Test Methods 4 through 5I Method...

  18. 40 CFR Appendix A-3 to Part 60 - Test Methods 4 through 5I

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 7 2010-07-01 2010-07-01 true Test Methods 4 through 5I A Appendix A-3 to Part 60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES (CONTINUED) Pt. 60, App. A-3 Appendix A-3 to Part 60—Test Methods 4 through 5I Method...

  19. Communication—Sol-Gel Synthesized Magnesium Vanadium Oxide, Mg x V 2 O 5 · nH 2 O: The Role of Structural Mg 2+ on Battery Performance

    DOE PAGES

    Yin, Jiefu; Pelliccione, Christopher J.; Lee, Shu Han; ...

    2016-07-12

    Magnesium intercalated vanadium oxide xerogels, Mg0.1V2O5 · 2.35H2O and Mg0.2V2O5 · 2.46H2O were synthesized using an ion removal sol gel strategy. X-ray diffraction indicated lamellar ordering with turbostratic character. X-ray absorption spectroscopy indicated greater distortion of the vanadium-oxygen coordination environment in Mg0.2V2O5 · 2.46H2O. Elemental analysis after cycling in Li+ or Mg2+ based electrolytes revealed that the magnesium content was unchanged, indicating structural Mg2+ are retained. Furthermore, the Mg0.1V2O5 · 2.35H2O material displayed high voltage, energy density, and discharge/charge efficiency, indicating promise as a cathode material for future magnesium based batteries.

  20. Jeremy Bentham's essay on "Paederasty". Part 2.

    PubMed

    Crompton, L

    1978-01-01

    This is Part 2 of a transcription of Bentham's manuscript essay on "Paederasty" (1785), Part 1 of which appeared in Vol. 3, No. 4. In Part 1 Bentham argued for the decriminalization of sodomy and opposed the theories of Montesquieu and Voltaire as to its social dangers. In Part 2 Bentham speculates on its causes and alleges that the real reason such behavior is so severely punished is an irrational "antipathy" to pleasure generally and to sexual pleasure in particular. He discusses the danger of blackmail and false accusations and the punishment of lesbian acts, bestiality, and masturbation. Some miscellaneous related notes by Bentham are appended: these deal with religious fears based on the destruction of Sodom, the threat to population, the harshness of English naval law, and other topics.

  1. Conflict in the workplace: part 2.

    PubMed

    Northam, Sally

    2009-07-01

    Last month, in Part 1 of this two-part article, I explored factors that contribute to workplace conflict among nurses (such as sex, age, power, and culture), as well as individual responses to conflict. I also discussed my observation that nurses apply their skills in therapeutic communication to solving workplace conflict, and that they therefore tend to focus on emotions rather than on solutions. In Part 2, I present strategies nurses can use to resolve conflict and build more effective-and harmonious-workplace relationships.

  2. Preparing images for publication: part 2.

    PubMed

    Bengel, Wolfgang; Devigus, Alessandro

    2006-08-01

    The transition from conventional to digital photography presents many advantages for authors and photographers in the field of dentistry, but also many complexities and potential problems. No uniform procedures for authors and publishers exist at present for producing high-quality dental photographs. This two-part article aims to provide guidelines for preparing images for publication and improving communication between these two parties. Part 1 provided information about basic color principles, factors that can affect color perception, and digital color management. Part 2 describes the camera setup, discusses how to take a photograph suitable for publication, and outlines steps for the image editing process.

  3. Postmortem detection of 25I-NBOMe [2-(4-iodo-2,5-dimethoxyphenyl)-N-[(2-methoxyphenyl)methyl]ethanamine] in fluids and tissues determined by high performance liquid chromatography with tandem mass spectrometry from a traumatic death

    PubMed Central

    Poklis, Justin L.; Devers, Kelly G.; Arbefeville, Elise F.; Pearson, Julia M.; Houston, Eric; Poklis, Alphonse

    2014-01-01

    We present a traumatic fatality of a 19-year-old man who had ingested blotter paper containing 25INBOMe [2-(4-iodo-2,5-dimethoxyphenyl)-N-[(2-methoxyphenyl)methyl]ethanamine]. Postmortem specimens were analyzed by high performance liquid chromatography with tandem mass spectrometry (HPLC/MS/MS). Toxicology findings for fluids based upon blood or urine calibrators were as follows: peripheral blood, 405 pg/mL; heart blood, 410 pg/mL; urine, 2.86 ng/mL; and vitreous humor, 99 pg/mL. While findings based upon the method of standard additions were: gastric contents, 7.1 μg total; bile, 10.9 ng/g; brain, 2.54 ng/g and liver, 7.2 ng/g. To our knowledge the presented case is the first postmortem case of 25I-NBOMe intoxication documented by toxicological analysis of tissues and body fluids. PMID:24215811

  4. Postmortem detection of 25I-NBOMe [2-(4-iodo-2,5-dimethoxyphenyl)-N-[(2-methoxyphenyl)methyl]ethanamine] in fluids and tissues determined by high performance liquid chromatography with tandem mass spectrometry from a traumatic death.

    PubMed

    Poklis, Justin L; Devers, Kelly G; Arbefeville, Elise F; Pearson, Julia M; Houston, Eric; Poklis, Alphonse

    2014-01-01

    We present a traumatic fatality of a 19-year-old man who had ingested blotter paper containing 25I-NBOMe [2-(4-iodo-2,5-dimethoxyphenyl)-N-[(2-methoxyphenyl)methyl]ethanamine]. Postmortem specimens were analyzed by high performance liquid chromatography with tandem mass spectrometry (HPLC/MS/MS). Toxicology findings for fluids based upon blood or urine calibrators were as follows: peripheral blood, 405 pg/mL; heart blood, 410 pg/mL; urine, 2.86 ng/mL; and vitreous humor, 99 pg/mL. While findings based upon the method of standard additions were: gastric contents, 7.1 μg total; bile, 10.9 ng/g; brain, 2.54 ng/g and liver, 7.2 ng/g. To our knowledge the presented case is the first postmortem case of 25I-NBOMe intoxication documented by toxicological analysis of tissues and body fluids.

  5. Anti-wrinkle and UV protective performance of cotton fabrics finished with 5-(carbonyloxy succinic)-benzene-1,2,4-tricarboxylic acid.

    PubMed

    Qi, Huan; Pan, Junbing; Qing, Feng-Ling; Yan, Kelu; Sun, Gang

    2016-12-10

    1,2,3,4-Butane tetracarboxylic acid (BTCA) has been considered as one of the most promising crosslinking agent to replace dimethylol dihydroxy ethylene urea (DMDHEU) for anti-wrinkle finishing on cotton fabrics. However, it could cause significant strength loss of the treated fabrics. In this study, a 5-(carbonyloxy succinic)-benzene-1,2,4-tricarboxylic acid (BSTA) was synthesized and applied as an effective crosslinking agent. The results show that fabrics treated with BSTA present the same or even better anti-wrinkle properties as that with BTCA. FTIR was employed to analyze ester bond formation process on cellulose. Finishing conditions such as agent concentration, curing temperature, and bath pH were also discussed to evaluate crosslinking effect of cellulose. BSTA, as a derivative of photo-active conjugated compound, can absorb ultraviolet lights and offer ultraviolet (UV) protective property on treated materials. The treated fabrics showed excellent UV protection performance due to the addition of aromatic conjugated system on fabrics.

  6. Performance of automated scoring of ER, PR, HER2, CK5/6 and EGFR in breast cancer tissue microarrays in the Breast Cancer Association Consortium

    PubMed Central

    Howat, William J; Blows, Fiona M; Provenzano, Elena; Brook, Mark N; Morris, Lorna; Gazinska, Patrycja; Johnson, Nicola; McDuffus, Leigh‐Anne; Miller, Jodi; Sawyer, Elinor J; Pinder, Sarah; van Deurzen, Carolien H M; Jones, Louise; Sironen, Reijo; Visscher, Daniel; Caldas, Carlos; Daley, Frances; Coulson, Penny; Broeks, Annegien; Sanders, Joyce; Wesseling, Jelle; Nevanlinna, Heli; Fagerholm, Rainer; Blomqvist, Carl; Heikkilä, Päivi; Ali, H Raza; Dawson, Sarah‐Jane; Figueroa, Jonine; Lissowska, Jolanta; Brinton, Louise; Mannermaa, Arto; Kataja, Vesa; Kosma, Veli‐Matti; Cox, Angela; Brock, Ian W; Cross, Simon S; Reed, Malcolm W; Couch, Fergus J; Olson, Janet E; Devillee, Peter; Mesker, Wilma E; Seyaneve, Caroline M; Hollestelle, Antoinette; Benitez, Javier; Perez, Jose Ignacio Arias; Menéndez, Primitiva; Bolla, Manjeet K; Easton, Douglas F; Schmidt, Marjanka K; Pharoah, Paul D; Sherman, Mark E

    2014-01-01

    Abstract Breast cancer risk factors and clinical outcomes vary by tumour marker expression. However, individual studies often lack the power required to assess these relationships, and large‐scale analyses are limited by the need for high throughput, standardized scoring methods. To address these limitations, we assessed whether automated image analysis of immunohistochemically stained tissue microarrays can permit rapid, standardized scoring of tumour markers from multiple studies. Tissue microarray sections prepared in nine studies containing 20 263 cores from 8267 breast cancers stained for two nuclear (oestrogen receptor, progesterone receptor), two membranous (human epidermal growth factor receptor 2 and epidermal growth factor receptor) and one cytoplasmic (cytokeratin 5/6) marker were scanned as digital images. Automated algorithms were used to score markers in tumour cells using the Ariol system. We compared automated scores against visual reads, and their associations with breast cancer survival. Approximately 65–70% of tissue microarray cores were satisfactory for scoring. Among satisfactory cores, agreement between dichotomous automated and visual scores was highest for oestrogen receptor (Kappa = 0.76), followed by human epidermal growth factor receptor 2 (Kappa = 0.69) and progesterone receptor (Kappa = 0.67). Automated quantitative scores for these markers were associated with hazard ratios for breast cancer mortality in a dose‐response manner. Considering visual scores of epidermal growth factor receptor or cytokeratin 5/6 as the reference, automated scoring achieved excellent negative predictive value (96–98%), but yielded many false positives (positive predictive value = 30–32%). For all markers, we observed substantial heterogeneity in automated scoring performance across tissue microarrays. Automated analysis is a potentially useful tool for large‐scale, quantitative scoring of immunohistochemically stained tissue

  7. 15 CFR Supplement No. 5 to Part 742 - Encryption Registration

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... producer of encryption or information technology items) (4) Describe whether the products incorporate or... registration, i.e., the information as described in this Supplement, submitted as a support documentation...), 748.1, 748.3 and Supplement No. 2 to part 748 of the EAR. (1) Point of Contact Information (a)...

  8. Tropical forests: a call for action. Part 1: the plan. Part 2: case studies. Part 3: country investment profiles

    SciTech Connect

    Not Available

    1985-10-01

    The World Resources Institute (WRI), in cooperation with multi- and bi-lateral organizations, has launched a major initiative to conserve forests in the humid and semiarid/arid areas of developing countries. The 3-part WRI report is a call to political action on this subject. Part 1 describes the high costs exacted by deforestation, but asserts that the process can be arrested and reversed by a partnership of governments, local participants, and development-assistance agencies. Proposals are presented for a 5-year action plan in farm, community, and arid-zone forestry. Parts 2 and 3 include case studies of the successful projects listed in Part 1 and 5-year investment profiles of 56 developing countries affected by deforestation.

  9. Origin of anomalous giant dielectric performance in novel perovskite: Bi0.5-xLaxNa0.5-xLixTi1-yMyO3 (M = Mg2+, Ga3+)

    NASA Astrophysics Data System (ADS)

    Liu, Xiao; Fan, Huiqing; Shi, Jing; Li, Qiang

    2015-08-01

    Dielectric properties and dielectric relaxation behaviors of A/B sites co-substituted Bi0.5Na0.5TiO3 perovskite-type ferroelectrics are reported. The Bi0.5-xLaxNa0.5-xLixTi1-yMyO3 (M = Mg2+, Ga3+) exhibits anomalous giant dielectric permittivity (ɛ’) of ~105 under a heterogeneous constitution with easily discernible grain and grain boundary conductivity. The lone pairs substitution theory as well as extrinsic disorders are used to clarify the significant structural evolution and the origin of the dielectric performance. A bigger free volume promotes the anomalous relaxation between oxygen sites, and the polarization direction on the nanoscale deviates from the average polarization direction at its ferroelectric state. Furthermore, no obvious phase transition indicates the considerable static substitutional disorder at the Bi/Na sites, which facilitates delocalized conduction of oxygen ions in the intermediate temperature range.

  10. Shuttle Performance: Lessons Learned, Part 2

    NASA Technical Reports Server (NTRS)

    Arrington, J. P. (Compiler); Jones, J. J. (Compiler)

    1983-01-01

    Several areas of Space Shuttle technology were addressed including aerothermal environment, thermal protection, measurement and analysis, Shuttle carrier aerodynamics, entry analysis of the STS-3, and an overview of each section.

  11. Fundamental performance differences of CMOS and CCD imagers: part V

    NASA Astrophysics Data System (ADS)

    Janesick, James R.; Elliott, Tom; Andrews, James; Tower, John; Pinter, Jeff

    2013-02-01

    Previous papers delivered over the last decade have documented developmental progress made on large pixel scientific CMOS imagers that match or surpass CCD performance. New data and discussions presented in this paper include: 1) a new buried channel CCD fabricated on a CMOS process line, 2) new data products generated by high performance custom scientific CMOS 4T/5T/6T PPD pixel imagers, 3) ultimate CTE and speed limits for large pixel CMOS imagers, 4) fabrication and test results of a flight 4k x 4k CMOS imager for NRL's SoloHi Solar Orbiter Mission, 5) a progress report on ultra large stitched Mk x Nk CMOS imager, 6) data generated by on-chip sub-electron CDS signal chain circuitry used in our imagers, 7) CMOS and CMOSCCD proton and electron radiation damage data for dose levels up to 10 Mrd, 8) discussions and data for a new class of PMOS pixel CMOS imagers and 9) future CMOS development work planned.

  12. A novel porous coral-like Zn0.5Ni0.5Co2O4 as an anode material for lithium ion batteries with excellent rate performance

    NASA Astrophysics Data System (ADS)

    Song, Xiong; Ru, Qiang; Mo, Yudi; Guo, Lingyun; Hu, Shejun; An, Bonan

    2014-12-01

    A novel porous coral-like Zn0.5Ni0.5Co2O4 (ZNCO) is prepared by a facile co-precipitation method using oxalic acid as complex agent, and the ZnCo2O4 (ZCO) nanospheres and NiCo2O4 (NCO) nanoflakes are also prepared for comparison. The obtained products are systematically characterized by powder X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). The results demonstrate that the controlled metallic elements doping has significant effects on the nanostructure and electrochemical performance of the samples. Compared with the ZCO nanospheres and NCO nanoflakes, the coral-like ZNCO materials with enough free space as anodes in lithium ion batteries (LIBs) exhibit a high initial coulombic efficiency of 84%, a high specific capacity of ∼1445 mAh g-1 at a current rate of 100 mA g-1 after 50 cycles, and ∼730 mAh g-1 at a current rate of 1500 mA g-1 after 200 cycles, as well as an excellent rate capability at elevated current rates, such as, ∼1080 and ∼425 mAh g-1 at current rates of 500 and 6000 mA g-1, respectively. This work presents a meaningful way for the preparation of mixed metal oxides with porous nanostructure as superior anodes for lithium ion batteries.

  13. Emission sources sensitivity study for ground-level ozone and PM2.5 due to oil sands development using air quality modeling system: Part I- model evaluation for current year base case simulation

    NASA Astrophysics Data System (ADS)

    Cho, Sunny; McEachern, Preston; Morris, Ralph; Shah, Tejas; Johnson, Jeremiah; Nopmongcol, Uarporn

    2012-08-01

    The Community Multiscale Air Quality (CMAQ) and the Sparse Matrix Operator Kernel Emissions (SMOKE) modeling systems were used to simulate emissions and air quality in North Eastern Alberta where a rapid rise in oil sands development has caused air quality concerns over the last decade. The models were run on a 36/12/4 km domain for the four month period of May through August 2002. A model performance evaluation was conducted by comparing the CMAQ model estimates against ambient air quality measurements. In the Alberta oil sands region, the model tended to achieve or nearly achieve ozone model performance goals, albeit with an underestimation bias. The magnitudes of the observed PM2.5 concentrations were matched by the modeling system, except when the observed PM2.5 concentrations were influenced by emissions from forest fires in which case the model underestimated the observed PM2.5 concentrations. The CMAQ-estimated 4th highest daily maximum 8-hour ozone concentrations in the oil sands region were below the 65 ppb Canada Wide Standard (CWS) as well as the 58 ppb Alberta Management Plan Trigger Level. The highest estimated ozone concentrations occurred near the oil sands development area just north of Fort McMurray with values approaching, but below, the 58 ppb Management Plan Trigger Level; estimated ozone concentrations are much lower in the farther northern portions of the oil sands region. The acute (i.e., maximum 3-day value) SUM60 vegetative ozone exposure metric was mostly less than 100 ppb h, which is below the threshold of concern for crops. However, just north of Fort McMurray there were small areas where the acute SUM60 metric exceeded the 500-700 ppb h threshold of concern for crops with maximum values in plumes from sources in the oil sands mine area of ˜900 ppb h. The maximum chronic (three-month average) SUM60 ozone exposure metric was below the thresholds of concern. The CMAQ-estimated maximum 98th percentile 24-hour average PM2.5 concentration

  14. Enhanced Photocatalytic Performance of the Graphene-V2O5 Nanocomposite in the Degradation of Methylene Blue Dye under Direct Sunlight.

    PubMed

    Shanmugam, Mahalingam; Alsalme, Ali; Alghamdi, Abdulaziz; Jayavel, Ramasamy

    2015-07-15

    A simple and efficient solution mixing method has been developed for the synthesis of the G-V2O5 nanocomposite. By this method, one-dimensional V2O5 rods are decorated onto the two-dimensional graphene sheets. The synthesized nanocomposites are characterized by XRD, SEM with elemental mapping, TEM, FT-IR, Raman, BET, and XPS analyses. The photocatalytic activity of the G-V2O5 nanocomposite studied with methylene blue dye shows strong degradation efficiency with direct sunlight irradiation compared to UV and visible light sources. The mechanism of methylene blue dye degradation by the G-V2O5 nanocomposite has been elucidated through the kinetics of the degradation process by calculating the rate constant and half-life time of the degradation process.

  15. 5 CFR 430.307 - Appraising performance.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 1993; (ii) Customer satisfaction; (iii) Employee perspectives; (iv) The effectiveness, productivity... principles set forth under section 2301 of title 5, United States Code. (b) Details and job changes. (1) When... into the initial summary rating. (2) When a senior executive changes jobs or transfers to...

  16. 5 CFR 430.307 - Appraising performance.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 1993; (ii) Customer satisfaction; (iii) Employee perspectives; (iv) The effectiveness, productivity... principles set forth under section 2301 of title 5, United States Code. (b) Details and job changes. (1) When... into the initial summary rating. (2) When a senior executive changes jobs or transfers to...

  17. 5 CFR 430.307 - Appraising performance.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 1993; (ii) Customer satisfaction; (iii) Employee perspectives; (iv) The effectiveness, productivity... principles set forth under section 2301 of title 5, United States Code. (b) Details and job changes. (1) When... into the initial summary rating. (2) When a senior executive changes jobs or transfers to...

  18. 5 CFR 430.307 - Appraising performance.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 1993; (ii) Customer satisfaction; (iii) Employee perspectives; (iv) The effectiveness, productivity... principles set forth under section 2301 of title 5, United States Code. (b) Details and job changes. (1) When... into the initial summary rating. (2) When a senior executive changes jobs or transfers to...

  19. 5 CFR 430.307 - Appraising performance.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 1993; (ii) Customer satisfaction; (iii) Employee perspectives; (iv) The effectiveness, productivity... principles set forth under section 2301 of title 5, United States Code. (b) Details and job changes. (1) When... into the initial summary rating. (2) When a senior executive changes jobs or transfers to...

  20. 5 CFR 2.2 - Appointments.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 5 Administrative Personnel 1 2013-01-01 2013-01-01 false Appointments. 2.2 Section 2.2... SYSTEM (RULE II) § 2.2 Appointments. (a) OPM shall establish and administer a career-conditional...) Persons whose appointments are required by statute to be made on a permanent basis; (2) Employees...

  1. 5 CFR 2.2 - Appointments.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 5 Administrative Personnel 1 2014-01-01 2014-01-01 false Appointments. 2.2 Section 2.2... SYSTEM (RULE II) § 2.2 Appointments. (a) OPM shall establish and administer a career-conditional...) Persons whose appointments are required by statute to be made on a permanent basis; (2) Employees...

  2. 5 CFR 2.2 - Appointments.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 5 Administrative Personnel 1 2012-01-01 2012-01-01 false Appointments. 2.2 Section 2.2... SYSTEM (RULE II) § 2.2 Appointments. (a) OPM shall establish and administer a career-conditional...) Persons whose appointments are required by statute to be made on a permanent basis; (2) Employees...

  3. 5 CFR 2.2 - Appointments.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 5 Administrative Personnel 1 2011-01-01 2011-01-01 false Appointments. 2.2 Section 2.2... SYSTEM (RULE II) § 2.2 Appointments. (a) OPM shall establish and administer a career-conditional...) Persons whose appointments are required by statute to be made on a permanent basis; (2) Employees...

  4. 5 CFR 2.2 - Appointments.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 5 Administrative Personnel 1 2010-01-01 2010-01-01 false Appointments. 2.2 Section 2.2... SYSTEM (RULE II) § 2.2 Appointments. (a) OPM shall establish and administer a career-conditional...) Persons whose appointments are required by statute to be made on a permanent basis; (2) Employees...

  5. 2 CFR Appendix A to Part 170 - Award term

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 2 Grants and Agreements 1 2012-01-01 2012-01-01 false Award term A Appendix A to Part 170 Grants...(a)(2) of the American Recovery and Reinvestment Act of 2009, Pub. L. 111-5) for a subaward to an entity (see definitions in paragraph e. of this award term). 2. Where and when to report. i. You...

  6. 2 CFR Appendix A to Part 170 - Award term

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 2 Grants and Agreements 1 2013-01-01 2013-01-01 false Award term A Appendix A to Part 170 Grants...(a)(2) of the American Recovery and Reinvestment Act of 2009, Pub. L. 111-5) for a subaward to an entity (see definitions in paragraph e. of this award term). 2. Where and when to report. i. You...

  7. Unified Modern Mathematics, Course 1, Part 2.

    ERIC Educational Resources Information Center

    Secondary School Mathematics Curriculum Improvement Study, New York, NY.

    Part 2 of Course I includes a study of set theory, transformations of the plane; properties of lines, planes, line segments and angles; elementary number theory; and rational numbers. Decimal fractions, ratio and proportion, percent, and presenting data using graphs are also presented. (FL)

  8. Lernen Wir Deutsch!: Part 2, German.

    ERIC Educational Resources Information Center

    Dade County Public Schools, Miami, FL.

    Instructional objectives of the Dade County Public Schools Quinmester Program in German for use with "Lernen Wir Deutsch: Part 2" focus on development of basic skills through the use of short dialogues and structured exercises. The grammar of the course includes the study of nouns, pronouns, and verbs. Possessive determiners are…

  9. High-performance tools key to slimhole logging and perforating. Part 4

    SciTech Connect

    Boonen, P. ); Shook, R.A. ); Brunsman, B.J. )

    1995-01-01

    This is the fourth in a series of five articles identifying barriers to more widespread utilization of slimhole drilling and completion technologies for reducing the costs to drill and complete US gas wells. These articles summarize the results of a study funded by the Gas Research Institute (GRI) and are prepared by an industry team consisting of Maurer Engineering, BJ Services, Baker Oil Tools and Halliburton Energy Services. Previous articles discussed slimhole drilling, cementing and stimulation. The focus of this article is slimhole logging and perforating. It emphasizes the challenges that wireline companies meet in building and deploying high-performance, small-diameter tools. Part 5 of this series will discuss completion and workover tools. Parts 1, 2 and 3 were published in September, October and December 1994, respectively.

  10. Electrochemical characterization and post-mortem analysis of aged LiMn2O4-Li(Ni0.5Mn0.3Co0.2)O2/graphite lithium ion batteries. Part I: Cycle aging

    NASA Astrophysics Data System (ADS)

    Stiaszny, Barbara; Ziegler, Jörg C.; Krauß, Elke E.; Schmidt, Jan P.; Ivers-Tiffée, Ellen

    2014-04-01

    A detailed capacity fade analysis was carried out for a commercial lithium ion battery with a mixed LiMn2O4/NMC cathode, cycled at room temperature with a continuous discharge rate of 1C. Complementary electrochemical and physical-analytical investigations revealed that the most significant aging processes was loss of cycleable lithium due to SEI-layer formation on the anode. The layer formation is accelerated by transition metals coming from the cathode. Impedance spectroscopy proved a significant increase of the cathode charge transfer resistance and of the serial resistance due to electrolyte decomposition and the formation of a surface layer on the anode. The changing of the impedance spectra of the lithium ion battery with aging could be interpreted with the help of impedance spectra of symmetric cells. From DRT analysis equivalent circuits for anode and cathode were derived, which were used for fitting of the impedance spectra.

  11. GEMPAK5. Part 1: GEMPAK5 programmer's guide, version 5.0

    NASA Technical Reports Server (NTRS)

    Desjardins, Mary L.; Brill, Keith F.; Schotz, Steven S.

    1991-01-01

    GEMPAK is a general meteorological software package used to analyze and display conventional meteorological data as well as satellite derived parameters. The Programmer's Guide describes the subroutines which can be used to build new GEMPAK programs. Part 1 contains GEMPAK subroutines.

  12. 5 CFR 351.504 - Credit for performance.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 5 Administrative Personnel 1 2011-01-01 2011-01-01 false Credit for performance. 351.504 Section... FORCE Retention Standing § 351.504 Credit for performance. Note to § 351.504: Compliance dates: Subject... credit in a reduction in force. (2) For employees who received ratings of record while covered by...

  13. 5 CFR 351.504 - Credit for performance.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 5 Administrative Personnel 1 2012-01-01 2012-01-01 false Credit for performance. 351.504 Section... FORCE Retention Standing § 351.504 Credit for performance. Note to § 351.504: Compliance dates: Subject... credit in a reduction in force. (2) For employees who received ratings of record while covered by...

  14. 5 CFR 351.504 - Credit for performance.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 5 Administrative Personnel 1 2010-01-01 2010-01-01 false Credit for performance. 351.504 Section... FORCE Retention Standing § 351.504 Credit for performance. Note to § 351.504: Compliance dates: Subject... credit in a reduction in force. (2) For employees who received ratings of record while covered by...

  15. Calculus: A Computer Oriented Presentation, Part 1 [and] Part 2.

    ERIC Educational Resources Information Center

    Stenberg, Warren; Walker, Robert J.

    Parts one and two of a one-year computer-oriented calculus course (without analytic geometry) are presented. The ideas of calculus are introduced and motivated through computer (i.e., algorithmic) concepts. An introduction to computing via algorithms and a simple flow chart language allows the book to be self-contained, except that material on…

  16. Border Issues in Education, Part 1 [and] Part 2.

    ERIC Educational Resources Information Center

    Alexander-Kasparik, Rosalind, Ed.; Soulas, John, Comp.

    1994-01-01

    These newsletters examine issues in education along the United States and Mexico border. Topics in Part 1 include the ramifications of the North American Free Trade Agreement (NAFTA) for education, the impact of immigration on schools, and the structure and history of the Mexican educational system and its reforms in theory and practice. Educators…

  17. Fabrication of high performance flexible micro-supercapacitor arrays with hybrid electrodes of MWNT/V2O5 nanowires integrated with a SnO2 nanowire UV sensor

    NASA Astrophysics Data System (ADS)

    Kim, Daeil; Yun, Junyeong; Lee, Geumbee; Ha, Jeong Sook

    2014-09-01

    We report on the on-chip fabrication of high performance flexible micro-supercapacitor (MSC) arrays with hybrid electrodes of multi-walled carbon nanotube (MWNT)/V2O5 nanowire (NW) composites and a solid electrolyte, which could power the SnO2 NW UV sensor integrated on the same flexible substrate. The patterned MSC using hybrid electrodes of MWNT/V2O5 NW composites with 10 vol% of V2O5 NWs exhibited excellent electrochemical performance with a high volume capacitance of 80 F cm-3 at a scan rate of 10 mV s-1 in a PVA-LiCl electrolyte and good cycle performance to maintain 82% of the capacitance after 10 000 cycles at a current density of 11.6 A cm-3. The patterned MSC also showed an excellent energy density of 6.8 mW h cm-3, comparable to that of a Li-thin film battery (1-10 mW h cm-3), and a power density of 80.8 W cm-3 comparable to that of state-of-the-art MSCs. In addition, the flexible MSC array on a PET substrate showed mechanical stability over bending with a bending radius down to 1.5 mm under both compressive and tensile stress. Even after 1000 bending cycles at a bending radius of 7 mm, 94% of the initial capacitance was maintained. Furthermore, we have shown the operation of a SnO2 NW UV sensor using such a fabricated MSC array integrated into the same circuit on the PET substrate.We report on the on-chip fabrication of high performance flexible micro-supercapacitor (MSC) arrays with hybrid electrodes of multi-walled carbon nanotube (MWNT)/V2O5 nanowire (NW) composites and a solid electrolyte, which could power the SnO2 NW UV sensor integrated on the same flexible substrate. The patterned MSC using hybrid electrodes of MWNT/V2O5 NW composites with 10 vol% of V2O5 NWs exhibited excellent electrochemical performance with a high volume capacitance of 80 F cm-3 at a scan rate of 10 mV s-1 in a PVA-LiCl electrolyte and good cycle performance to maintain 82% of the capacitance after 10 000 cycles at a current density of 11.6 A cm-3. The patterned MSC also

  18. A superior photocatalytic performance of a novel Bi2SiO5 flower-like microsphere via a phase junction

    NASA Astrophysics Data System (ADS)

    Liu, Di; Wang, Jun; Zhang, Mo; Liu, Yanfang; Zhu, Yongfa

    2014-11-01

    A phase junction over a Bi2SiO5 photocatalyst with the orthorhombic Bi2SiO5 and the tetragonal Bi2SiO5 structure was successfully synthesized via an ion exchange method using BiOBr solid microspheres as the sacrificial template. In the meantime, the as-prepared Bi2SiO5 phase junction possesses a novel morphology of a flower-like microsphere with nanoparticles evenly embedded in its nano-petals. It was found that the Bi2SiO5 phase junction not only showed a highly enhanced photocatalytic activity and excellent durability under UV or simulated solar irradiation, but also showed a remarkable visible-light activity for photo-degradation of phenol. Experimental results reveal that the tetragonal Bi2SiO5 phase in this phase junction possesses a narrower band gap, thus leading to its extended light absorption. The efficient charge separation via a phase junction would make a great contribution to its highly enhanced photocatalytic activity under UV or simulated solar irradiation. The high efficiency in the degradation of organic pollutants makes the as-prepared photocatalyst a promising candidate for photocatalytic environmental purification.A phase junction over a Bi2SiO5 photocatalyst with the orthorhombic Bi2SiO5 and the tetragonal Bi2SiO5 structure was successfully synthesized via an ion exchange method using BiOBr solid microspheres as the sacrificial template. In the meantime, the as-prepared Bi2SiO5 phase junction possesses a novel morphology of a flower-like microsphere with nanoparticles evenly embedded in its nano-petals. It was found that the Bi2SiO5 phase junction not only showed a highly enhanced photocatalytic activity and excellent durability under UV or simulated solar irradiation, but also showed a remarkable visible-light activity for photo-degradation of phenol. Experimental results reveal that the tetragonal Bi2SiO5 phase in this phase junction possesses a narrower band gap, thus leading to its extended light absorption. The efficient charge separation

  19. 10. PART 2 OF 2 PART PANORAMA WITH CA265W9 OF ...

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

    10. PART 2 OF 2 PART PANORAMA WITH CA-265-W-9 OF YORK BOULEVARD ACCESS ROAD FOR SOUTHBOUND LANES OF ARROYO SECO PARKWAY. NOTE SMALL ISLAND FOR EXIT AND ENTRANCE LANES. LOOKING 70°ENE. - Arroyo Seco Parkway, York Boulevard Bridge, Milepost 29.50, Los Angeles, Los Angeles County, CA

  20. Communication—Sol-Gel Synthesized Magnesium Vanadium Oxide, Mg x V 2 O 5 · nH 2 O: The Role of Structural Mg 2+ on Battery Performance

    SciTech Connect

    Yin, Jiefu; Pelliccione, Christopher J.; Lee, Shu Han; Takeuchi, Esther S.; Takeuchi, Kenneth J.; Marschilok, Amy C.

    2016-07-12

    Magnesium intercalated vanadium oxide xerogels, Mg0.1V2O5 · 2.35H2O and Mg0.2V2O5 · 2.46H2O were synthesized using an ion removal sol gel strategy. X-ray diffraction indicated lamellar ordering with turbostratic character. X-ray absorption spectroscopy indicated greater distortion of the vanadium-oxygen coordination environment in Mg0.2V2O5 · 2.46H2O. Elemental analysis after cycling in Li+ or Mg2+ based electrolytes revealed that the magnesium content was unchanged, indicating structural Mg2+ are retained. Furthermore, the Mg0.1V2O5 · 2.35H2O material displayed high voltage, energy density, and discharge/charge efficiency, indicating promise as a cathode material for future magnesium based batteries.

  1. Benzo[1,2-c]1,2,5-oxadiazole N-oxide derivatives as potential antitrypanosomal drugs. Part 3: Substituents-clustering methodology in the search for new active compounds.

    PubMed

    Aguirre, Gabriela; Boiani, Lucía; Cerecetto, Hugo; Di Maio, Rossanna; González, Mercedes; Porcal, Williams; Denicola, Ana; Möller, Matías; Thomson, Leonor; Tórtora, Verónica

    2005-12-01

    The results of a study on the use of Hansch's series design, cluster methodology, for the generation of new benzo[1,2-c]1,2,5-oxadiazole N-oxide derivatives as antitrypanosomal compounds are described. In vitro activity of these compounds was tested against Tulahuen 2 strain of Trypanosoma cruzi. Clearly, the Hansch methodology allowed identifying two cluster-substituents suitable for further structural modifications. The most effective drugs, derivatives 11, 18, and 21, with 50% inhibitory concentration (IC(50)) of the same order as that of the reference drug, represent an excellent structural point of chemical modifications for the design of future drugs. Preliminary results from the study of the mechanism of action of these benzofuroxans point to perturbation of the mitochondrial electron chain, inhibiting parasite respiration.

  2. Topical Report 5: Sorbent Performance Report

    SciTech Connect

    Krutka, Holly; Sjostrom, Sharon

    2011-05-31

    ADA-ES has completed an extensive sorbent screening program funded primarily through DOE NETL cooperative agreement DE-NT0005649 with support from EPRI and industry cost-share participants. Tests were completed on simulated and actual flue gas. The overall project objective is to address the viability and accelerate development of a solid-based postcombustion CO2 capture technology that can be retrofit to the existing fleet of coal-fired power plants. An important component of the viability assessment was to evaluate the state of development of sorbents and measure key performance characteristics under realistic operating conditions.

  3. Preceptor Development: Providing Effective Feedback, Part 2

    PubMed Central

    Wilkinson, Samaneh T.; Phillips, Holly

    2014-01-01

    Abstract An integral part of providing effective feedback to pharmacy residents occurs during the evaluation process. Residency evaluation involves measuring and documenting performance as it relates to standardized residency outcomes, goals, and learning objectives. Evaluations may be formative or summative and include the preceptor’s evaluation of the resident’s performance, the resident’s self-assessments, and the resident’s evaluation of the preceptor and learning experience. Evaluations are more structured than feedback, and they involve documentation of the verbal feedback that was provided throughout the learning experience. This article will focus on the preceptor’s role in providing effective resident evaluations based on specific learning activities. PMID:24958969

  4. Low-cost synthesis of hierarchical V2O5 microspheres as high-performance cathode for lithium-ion batteries.

    PubMed

    Shao, Jie; Li, Xinyong; Wan, Zhongming; Zhang, Longfei; Ding, Yuanlei; Zhang, Li; Qu, Qunting; Zheng, Honghe

    2013-08-28

    Hierarchical V2O5 microspheres composed of stacked platelets are fabricated through a facile, low-cost, and energy-saving approach. The preparation procedure involves a room-temperature precipitation of precursor microspheres in aqueous solution and subsequent calcination. Because of this unique structure, V2O5 microspheres manifest a high capacity (266 mA h g(-1)), excellent rate capability (223 mA h g(-1) at a current density 2400 mA g(-1)), and good cycling stability (200 mA h g(-1) after 100 cycles) as cathode materials for lithium-ion batteries.

  5. Effect of nanostructured carbon coatings on the electrochemical performance of Li1.4Ni0.5Mn0.5O2+ x-based cathode materials

    PubMed Central

    Kurilenko, Konstantin A; Brylev, Oleg A; Petukhov, Dmitry I; Garshev, Alexey V

    2016-01-01

    Nanocomposites of Li1.4Ni0.5Mn0.5O2+ x and amorphous carbon were obtained by the pyrolysis of linear and cross-linked poly(vinyl alcohol) (PVA) in presence of Li1.4Ni0.5Mn0.5O2+ x. In the case of linear PVA, the formation of nanostructured carbon coatings on Li1.4Ni0.5Mn0.5O2+ x particles is observed, while for cross-linked PVA islands of mesoporous carbon are located on the boundaries of Li1.4Ni0.5Mn0.5O2+ x particles. The presence of the carbon framework leads to a decrease of the polarization upon cycling and of the charge transfer resistance and to an increase in the apparent Li+ diffusion coefficient from 10−16 cm2·s−1 (pure Li1.4Ni0.5Mn0.5O2+ x) to 10−13 cm2·s−1. The nanosized carbon coatings also reduce the deep electrochemical degradation of Li1.4Ni0.5Mn0.5O2+ x during electrochemical cycling. The nanocomposite obtained by the pyrolysis of linear PVA demonstrates higher values of the apparent lithium diffusion coefficient, a higher specific capacity and lower values of charge transfer resistance, which can be related to the more uniform carbon coatings and to the significant content of sp2-hybridized carbon detected by XPS and by Raman spectroscopy. PMID:28144544

  6. 42 CFR 489.2 - Scope of part.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...) Hospices. (7) Critical access hospital (CAHs). (8) Community mental health centers (CMHCs). (9) Religious... 42 Public Health 5 2010-10-01 2010-10-01 false Scope of part. 489.2 Section 489.2 Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED)...

  7. 42 CFR 489.2 - Scope of part.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 42 Public Health 5 2013-10-01 2013-10-01 false Scope of part. 489.2 Section 489.2 Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) STANDARDS...) Hospices. (7) Critical access hospital (CAHs). (8) Community mental health centers (CMHCs). (9)...

  8. 42 CFR 489.2 - Scope of part.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 42 Public Health 5 2011-10-01 2011-10-01 false Scope of part. 489.2 Section 489.2 Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) STANDARDS...) Hospices. (7) Critical access hospital (CAHs). (8) Community mental health centers (CMHCs). (9)...

  9. 42 CFR 489.2 - Scope of part.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 42 Public Health 5 2012-10-01 2012-10-01 false Scope of part. 489.2 Section 489.2 Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) STANDARDS...) Hospices. (7) Critical access hospital (CAHs). (8) Community mental health centers (CMHCs). (9)...

  10. 42 CFR 489.2 - Scope of part.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 42 Public Health 5 2014-10-01 2014-10-01 false Scope of part. 489.2 Section 489.2 Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) STANDARDS...) Hospices. (7) Critical access hospital (CAHs). (8) Community mental health centers (CMHCs). (9)...

  11. 47 CFR 20.2 - Other applicable rule parts.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... § 20.2 Other applicable rule parts. Other FCC rule parts applicable to licensees in the commercial... filing electronically via the ULS. (b) Part 2. This part contains the Table of Frequency Allocations...

  12. 47 CFR 20.2 - Other applicable rule parts.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... § 20.2 Other applicable rule parts. Other FCC rule parts applicable to licensees in the commercial... filing electronically via the ULS. (b) Part 2. This part contains the Table of Frequency Allocations...

  13. Structural diversity in lithium aryloxides, Part 2

    SciTech Connect

    BOYLE,TIMOTHY J.; PEDROTTY,DAWN M.; ALAM,TODD M.; VICK,SARA C.; RODRIGUEZ,MARK A.

    2000-06-06

    A series of arylalcohols [H-OAr where OAr = OC{sub 6}H{sub 5} (OPh), OC{sub 6}H{sub 4}(2-Me) (oMP), OC{sub 6}H{sub 3}(2,6-Me){sub 2} (DMP), OC{sub 6}H{sub 4}(2-Pr{prime}) (oPP), OC{sub 6}H{sub 3}(2,6-Pr{prime}){sub 2} (DIP), OC{sub 6}H{sub 4}(2-Bu{prime}) (oBP), OC{sub 6}H{sub 3}(2,6-Bu{prime}){sub 2} (DBP) where Me = CH{sub 3}, Pr{prime} = CHMe{sub 2}, and Bu{prime} = CMe{sub 3}] were reacted with LiN(SiMe{sub 3}){sub 2} in pyridine (py) to generate the appropriate ``Li(OAr)(py){sub x}'' complex. The resultant products were characterized by single crystal X-ray diffraction as: [Li(OPh)(py){sub 2}]{sub 2} (1), [Li(oMP)(py){sub 2}]{sub 2} (2), [Li(DMP)(py){sub 2}]{sub 2} (3), [Li(oPP)(py){sub 2}]{sub 2} (4), [Li(DIP)(py){sub 2}]{sub 2} (5), [Li(oBP)(py){sub 2}]{sub 2} (6), and [Li(DBP)(py)]{sub 2} (7). Compounds 1--6 adopt a dinuclear, edge-shared tetrahedral complex. For 7, due to the steric crowding of the DBP ligand, only one py is coordinated yielding a dinuclear fused trigonal planar arrangement. Two additional structure types were also characterized for the DIP ligand as [Li(DIP)(H-DIP)(py)]{sub 2} (5b) and [Li{sub 2}(DIP){sub 2}(py){sub 3}] (5c). {sup 6,7}Li and {sup 13}C NMR solid state MAS spectroscopy indicated that the bulk powder was consistent with the crystalline material. Solution state NMR spectroscopy revealed a symmetric molecule existed in solution for 1--7.

  14. Determination of 4-bromo-2,5-dimethoxy-N-[(2-methoxyphenyl)methyl]-benzeneethanamine (25B-NBOMe) in serum and urine by high performance liquid chromatography with tandem mass spectrometry in a case of severe intoxication.

    PubMed

    Poklis, Justin L; Nanco, Carol R; Troendle, Michelle M; Wolf, Carl E; Poklis, Alphonse

    2014-01-01

    We present a case of 4-bromo-2,5-dimethoxy-N-[(2-methoxyphenyl)methyl]-benzeneethanamine (25B-NBOMe), an N-benzyl phenethylamines derivative, intoxication and a high performance liquid chromatography with tandem mass spectrometry (HPLC-MS/MS) method for detection and quantification of 25B-NBOMe. A 19-year-old male was found unresponsive with generalized grand mal seizure activity. On the second day of hospitalization, a friend admitted that the patient used 'some unknown drug' called 25B. Serum and urine collected were sent to the Virginia Commonwealth University Medical Center Toxicology Laboratory for analysis. An HPLC-MS/MS method for the identification and quantification of 25B-NBOMe using 2-(2,5-dimethoxyphenyl)-N-(2-methoxybenzyl)ethanamine (25H-NBOMe) as the internal standard (ISTD) was developed. As this is a novel, single-case presentation, an assay validation was performed prior to testing to ensure the reliability of the analytical results. The serum and urine specimens were determined to contain 180 pg/ml and1900 pg/ml of 25B-NBOMe, respectively.

  15. PART 2 OF 2 PART PANORAMA WITH NO. CA212 VIEW ...

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

    PART 2 OF 2 PART PANORAMA WITH NO. CA-2-12 VIEW OF PIEDMONT AVENUE TRAFFIC CIRCLE AT INTERSECTION OF CHANNING WAY WITH 2395 PIEDMONT, SIGMA PI HOUSE BY FREDERICK H. REIMERS, 1928. SEEN FROM SE CORNER LOOKING NW. Photograph by Brian Grogan, July 8, 2007 - Piedmont Way & the Berkeley Property Tract, East of College Avenue between Dwight Way & U.C. Memorial Stadium, Berkeley, Alameda County, CA

  16. Preparation of high magneto-optical performance and crystalline quality Ce1Gd2Fe5-xGaxO12 films on CLNGG substrate crystal

    NASA Astrophysics Data System (ADS)

    Fu, Qiu-ping; Zheng, Ze-yuan; Lin, Nan-xi; Liu, Xiao-feng; Hong, Can-huang; Hu, Xiao-lin; Zhuang, Nai-feng; Chen, Jian-zhong

    2016-11-01

    Thin films of Ce1Gd2Fe5-xGaxO12 (Ce,Ga:GIG) were prepared on Gd3Ga5O12 (GGG) and Ca2.90Li0.30Nb1.93Ga2.76O12 (CLNGG) substrates by using radio frequency magnetron sputtering technique. The phase, grain orientation, surface morphology, transmittance, magnetism and magnetic circular dichroism (MCD) properties of films were analyzed. And the effects of lattice mismatch and non-magnetic Ga3+-doping were discussed. The results show that the films with higher crystallized quality and lower stress can be obtained by growing on CLNGG than on GGG. Moreover, the coercive force, magnetization, magneto-optical effect intensity and orientation of film can be effectively regulated by adjusting Ga3+-doped concentration.

  17. Theoretical and experimental determination of the electronic structure of V(2)O(5), reduced V(2)O(5-x) and sodium intercalated NaV(2)O(5).

    PubMed

    Laubach, Stefan; Schmidt, Peter C; Thissen, Andreas; Fernandez-Madrigal, Francisco Javier; Wu, Qi-Hui; Jaegermann, Wolfram; Klemm, Matthias; Horn, Siegfried

    2007-05-28

    In this work the electronic structure of V(2)O(5), reduced V(2)O(5-x) (V(16)O(39)) and sodium intercalated NaV(2)O(5) has been studied by both theoretical and experimental methods. Theoretical band structure calculations have been performed using density functional methods (DFT). We have investigated the electron density distribution of the valence states, the total density of states (total DOS) and the partial valence band density of states (PVBDOS). Experimentally, amorphous V(2)O(5) thin films have been prepared by physical vapour deposition (PVD) on freshly cleaved highly oriented pyrolytic graphite (HOPG) substrates at room temperature with an initial oxygen understoichiometry of about 4%, resulting in a net stoichiometry of V(2)O(4.8). These films have been intercalated by sodium using vacuum deposition with subsequent spontaneous intercalation (NaV(2)O(5)) at room temperature. Resonant V3p-V3d photoelectron spectroscopy (ResPES) experiments have been performed to determine the PVBDOS focusing on the calculation of occupation numbers and the determination of effective oxidation state, reflecting ionicity and covalency of the V-O bonds. Using X-ray absorption near edge spectra (XANES) an attempt is made to visualize the changes in the unoccupied DOS due to sodium intercalation. For comparison measurements on nearly stoichiometric V(2)O(5) single crystals have been performed. The experimental data for the freshly cleaved and only marginally reduced V(2)O(5) single crystals and the NaV(2)O(5) results are in good agreement with the calculated values. The ResPES results for V(2)O(4.8) agree in principle with the calculations, but the trends in the change of the ionicity differ between experiment and theory. Experimentally we find partly occupied V 3d states above the oxygen 2p-like states and a band gap between these and the unoccupied states. In theory one finds this occupation scheme assuming oxygen vacancies in V(2)O(5) and by performing a spin

  18. On the static structural design of climbing robots: part 2.

    PubMed

    Ahmed, Ausama Hadi; Menon, Carlo

    This manuscript is the second of two parts of a work investigating optimal configurations of legged climbing robots while loitering on vertical surfaces. In this Part 2, a structural analysis based on the finite element method, specifically the stiffness method, is performed to address the problem. Parameters that are investigated in this Part 2 include the inclination of both the body and the legs of the robot. Outcomes of the performed study are validated by analyzing the posture of 150 ants when loitering on vertical surfaces. The obtained validation ensures the predictions of the developed structural model are correct and can be used to identify optimal configurations of legged robots when loitering on vertical surfaces.

  19. 47 CFR 24.2 - Other applicable rule parts.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... towers. (g) Part 20 of this chapter governs commercial mobile radio services. (h) Part 21. This part... procedures concerning the marketing and importation of radio frequency devices, and for obtaining equipment authorization. (d) Part 5. This part contains rules prescribing the manner in which parts of the radio...

  20. Nursing Care Hour Standards Study. Part 2 thru Part 4

    DTIC Science & Technology

    1981-09-01

    6.5417 2 Amniocentesis (1) (29.1840) 29.1840 10 Non-Stress Test (I) (24.3193) 24.3193 8 Ocytocin Challenge (1) Test 61.4033 (61.4033) 20 A-In APPENDIX...3 4 6 18 1 1 2 3 Postpartum Assessment ... ............ 1 2 1 Pitocin Induction .... .............. Amniocentesis .................. Non-Stress Test...regular contraction. (Repeat FHT; BP, P&R as Indicated during the procedure.) AMNIOCENTESIS : Set-up equipment at bedside, assess vital signs of

  1. Development of an analytical method for the determination of beta2-agonist residues in animal tissues by high-performance liquid chromatography with on-line electrogenerated [Cu(HIO6)2]5- -luminol chemiluminescence detection.

    PubMed

    Zhang, Yantu; Zhang, Zhujun; Sun, Yonghua; Wei, Yue

    2007-06-27

    A novel method was developed for the simultaneous determination of beta2-agonist residues such as terbutaline, salbutamol, and clenbuterol by high-performance liquid chromatography (HPLC) coupled with chemiluminescence (CL) detection. The procedure was based on the enhancement effect of beta2-agonists on the CL reaction between luminol and the complex of trivalent copper and periodate ([Cu(HIO6)2]5-), which was on-line electrogenerated by constant current electrolysis. The HPLC separation used a Nucleosil RP-C18 column (250 mm x 4.6 mm i.d., 5 microm; pore size, 100 A) with a mobile phase consisting of 90% acetonitrile and 10% aqueous ammonium acetate (20 mmol L-1, pH 4.0) at a flow rate of 1.0 mL min-1. The effects of several parameters on the HPLC resolution and CL emission were studied systematically. Liver samples were hydrolyzed with beta-glucuronidase followed by a solid-phase extraction procedure using Waters OasisMCX cartridges. Under optimum conditions, the limits of detection at a signal-to-noise ratio of 3 ranged from 0.007 to 0.01 ng g-1 and the limits of quantification at a signal-to-noise ratio of 10 ranged from 0.023 to 0.033 ng g-1 for three beta2-agonists. The relative standard deviations (RSDs) of intra- and interday precision were below 4.5%. The average recoveries for beta2-agonists (spiked at the levels of 0.05-5.0 ng g-1) in pig liver ranged from 84 to 110%, and the RSDs of the quantitative results were from 1.6 to 7.2%. The proposed method was successfully applied to the determination of beta2-agonist residues in pig liver samples.

  2. La5Zn2Sn

    PubMed Central

    Oshchapovsky, Igor; Pavlyuk, Volodymyr; Dmytriv, Grygoriy; Chumak, Igor; Ehrenberg, Helmut

    2011-01-01

    A single crystal of penta­lanthanum dizinc stannide, La5Zn2Sn, was obtained from the elements in a resistance furnace. It belongs to the Mo5SiB2 structure type, which is a ternary ordered variant of the Cr5B3 structure type. The space is filled by bicapped tetra­gonal anti­prisms from lanthanum atoms around tin atoms sharing their vertices. Zinc atoms fill voids between these bicapped tetra­gonal anti­prisms. All four atoms in the asymmetric unit reside on special positions with the following site symmetries: La1 (..m); La2 (4/m..); Zn (m.2m); Sn (422). PMID:22219730

  3. Effect of O 2 concentration on performance of solid oxide fuel cells with V 2O 5 or Cu added (LaSr)(CoFe)O 3-(Ce,Gd)O 2- x cathode with and without NO

    NASA Astrophysics Data System (ADS)

    Huang, Ta-Jen; Chou, Chien-Liang

    A solid oxide fuel cell unit is constructed with Ni-(Ce,Gd)O 2- x (GDC) as the anode, yttria-stabilized zirconia as the electrolyte, and V 2O 5 or Cu added (LaSr)(CoFe)O 3-GDC as the cathode. The effect of the O 2 concentration on the open circuit voltage (OCV) is studied and a mass-transfer limited OCV is observed. The power density with Cu addition can be much higher than that with V 2O 5 addition but the effect of the O 2 concentration with Cu addition is larger than that with V 2O 5 addition. Without the presence of NO, both the power density and the OCV decrease with decreasing O 2 concentration. The OCV variation can be substantial with the variation of the flow rate, the O 2 concentration and the NO concentration. The presence of CO 2 can increase the OCV while that of NO can decrease the OCV; however, a synergistic effect can occur on the OCV when NO is present at a very low O 2 concentration which results in a sudden drop of the OCV.

  4. Acute malnutrition and under-5 mortality, northeastern part of India.

    PubMed

    Espié, Emmanuelle; Pujol, Carme Roure; Masferrer, Maria; Saint-Sauveur, Jean-François; Urrutia, Pedro Pablo Palma; Grais, Rebecca F

    2011-10-01

    We assessed the prevalence of childhood acute malnutrition and under-five mortality rate (U5MR) in Darbhanga district, India, using a two-stage 49-cluster household survey. A total of 1379 households comprising 8473 people were interviewed. During a 90-day recall period, U5MR was 0.5 [95% confidence interval (CI), 0.2-1.4] per 10,000 per day. The prevalence of global acute malnutrition among 1405 children aged 6-59 months was 15.4% (NCHS) and 19.4% (2006 WHO references). This survey suggests that in Darbhanga district, the population is in a borderline food crisis with few food resources. Appropriate strategies should be developed to improve the overall nutritional and health status of children.

  5. 1,2,3,9b-Tetrahydro-5H-imidazo[2,1-a]isoindol-5-ones as a new class of respiratory syncytial virus (RSV) fusion inhibitors. Part 2: identification of BTA9881 as a preclinical candidate.

    PubMed

    Bond, Silas; Draffan, Alistair G; Fenner, Jennifer E; Lambert, John; Lim, Chin Yu; Lin, Bo; Luttick, Angela; Mitchell, Jeffrey P; Morton, Craig J; Nearn, Roland H; Sanford, Vanessa; Anderson, Kelly H; Mayes, Penelope A; Tucker, Simon P

    2015-02-15

    Respiratory syncytial virus (RSV) is a major cause of respiratory tract infections in infants, young children and adults. 1,2,3,9b-Tetrahydro-5H-imidazo[2,1-a]isoindol-5-ones with general structure 1 were previously identified as promising inhibitors of RSV targeting the fusion glycoprotein. In particular, the introduction of a nitrogen at the 8-position of the tricyclic core yielded lead compounds 2 and 3. Extensive exploration of the R(2) group established that certain heterocyclic amides conferred potent RSV A&B activity and a good balance of physicochemical and pharmacokinetic properties. The antiviral activity was found to reside in a single enantiomer and compound 33a, (9bS)-9b-(4-chlorophenyl)-1-(pyridin-3-ylcarbonyl)-1,2,3,9b-tetrahydro-5H-imidazo[1',2':1,2]pyrrolo[3,4-c]pyridin-5-one (known as BTA9881), was identified as a candidate for preclinical development.

  6. 16 CFR Figure 5 to Part 1203 - Location of Test Lines for Helmets Intended for Persons Ages 1 and Older

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 16 Commercial Practices 2 2013-01-01 2013-01-01 false Location of Test Lines for Helmets Intended for Persons Ages 1 and Older 5 Figure 5 to Part 1203 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION CONSUMER PRODUCT SAFETY ACT REGULATIONS SAFETY STANDARD FOR BICYCLE HELMETS Pt. 1203, Fig. 5 Figure 5 to Part 1203—Location of Test Lines...

  7. 16 CFR Figure 5 to Part 1203 - Location of Test Lines for Helmets Intended for Persons Ages 1 and Older

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 16 Commercial Practices 2 2014-01-01 2014-01-01 false Location of Test Lines for Helmets Intended for Persons Ages 1 and Older 5 Figure 5 to Part 1203 Commercial Practices CONSUMER PRODUCT SAFETY COMMISSION CONSUMER PRODUCT SAFETY ACT REGULATIONS SAFETY STANDARD FOR BICYCLE HELMETS Pt. 1203, Fig. 5 Figure 5 to Part 1203—Location of Test Lines...

  8. Transition-metal complexes [(PMe(3))(2)Cl(2)M(E)] and [(PMe(3))(2)(CO)(2)M(E)] with naked group 14 atoms (E=C-Sn) as ligands; part 2: complexation with W(CO)(5).

    PubMed

    Parameswaran, Pattiyil; Frenking, Gernot

    2009-09-07

    Density functional calculations at the BP86/TZ2P level were carried out to understand the ligand properties of the 16-valence-electron(VE) Group 14 complexes [(PMe(3))(2)Cl(2)M(E)] (1ME) and the 18-VE Group 14 complexes [(PMe(3))(2)(CO)(2)M(E)] (2ME; M=Fe, Ru, Os; E=C, Si, Ge, Sn) in complexation with W(CO)(5). Calculations were also carried out for the complexes (CO)(5)W-EO. The complexes [(PMe(3))(2)Cl(2)M(E)] and [(PMe(3))(2)(CO)(2)M(E)] bind strongly to W(CO)(5) yielding the adducts 1ME-W(CO)(5) and 2ME-W(CO)(5), which have C(2v) equilibrium geometries. The bond strengths of the heavier Group 14 ligands 1ME (E=Si-Sn) are uniformly larger, by about 6-7 kcal mol(-1), than those of the respective EO ligand in (CO)(5)W-EO, while the carbon complexes 1MC-W(CO)(5) have comparable bond dissociation energies (BDE) to CO. The heavier 18-VE ligands 2ME (E=Si-Sn) are about 23-25 kcal mol(-1) more strongly bonded than the associated EO ligand, while the BDE of 2MC is about 17-21 kcal mol(-1) larger than that of CO. Analysis of the bonding with an energy-decomposition scheme reveals that 1ME is isolobal with EO and that the nature of the bonding in 1ME-W(CO)(5) is very similar to that in (CO)(5)W-EO. The ligands 1ME are slightly weaker pi acceptors than EO while the pi-acceptor strength of 2ME is even lower.

  9. Geostatistics for natural resources characterization. Part 1 and part 2

    SciTech Connect

    Verly, G.

    1984-01-01

    This collection of 33 research papers (in two volumes) bears witness to the fact that applications of geostatistics are no longer limited to the mining industry. Given are reports made in fields such as hydrology, soil sciences, pollution control, and geotechnical engineering. Contents, abridged: (pt.1) Variogram. Kriging. Recoverage reserves. Spectral analysis and data analysis. (pt. 2) Applications in the petroleum industry and automatics contouring. Applications in hydrogeology and geochemical exploration. Case studies in ore reserves estimation. Simulation. Index.

  10. 40 CFR Appendix A-2 to Part 60 - Test Methods 2G through 3C

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 8 2012-07-01 2012-07-01 false Test Methods 2G through 3C A Appendix A-2 to Part 60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES (CONTINUED) Pt. 60, App. A-2 Appendix A-2 to Part 60—Test Methods 2G through 3C Method...

  11. 40 CFR Appendix A-2 to Part 60 - Test Methods 2G through 3C

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 7 2011-07-01 2011-07-01 false Test Methods 2G through 3C A Appendix A-2 to Part 60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES (CONTINUED) Pt. 60, App. A-2 Appendix A-2 to Part 60—Test Methods 2G through 3C Method...

  12. 40 CFR Appendix A-2 to Part 60 - Test Methods 2G through 3C

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 7 2010-07-01 2010-07-01 true Test Methods 2G through 3C A Appendix A-2 to Part 60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES (CONTINUED) Pt. 60, App. A-2 Appendix A-2 to Part 60—Test Methods 2G through 3C...

  13. 40 CFR Appendix A-2 to Part 60 - Test Methods 2G through 3C

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 8 2013-07-01 2013-07-01 false Test Methods 2G through 3C A Appendix A-2 to Part 60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES (CONTINUED) Pt. 60, App. A-2 Appendix A-2 to Part 60—Test Methods 2G through 3C Method...

  14. Space Shuttle Technical Conference, Part 2

    NASA Technical Reports Server (NTRS)

    Chaffee, Norman (Compiler)

    1985-01-01

    The retrospective presentation provides technical disciplinary focus in the following technical areas: (1) integrated avionics; (2) guidance, navigation, and control; (3) aerodynamics; (4) structures; (5) life support, environmental control, and crew station; (6) ground operations; (7) propulsion and power; (8) communications and tracking; (9) mechanics and mechanical systems; and (10) thermal and contamination environments and protection systems.

  15. Trigeminal autonomic cephalalgias. Part 2: Paroxysmal hemicrania.

    PubMed

    Klasser, Gary D; Balasubramaniam, Ramesh

    2007-11-01

    Paroxysmal hemicrania (PH) is characterized by severe, strictly unilateral pain attacks lasting 2 to 30 minutes localized to orbital, supraorbital, and temporal areas accompanied by ipsilateral autonomic features. It represents 1 of 3 primary headaches classified as trigeminal autonomic cephalalgias. Although PH is rare, patients may present to dental offices seeking relief for their pain. It is important for oral health care providers to recognize PH and render an accurate diagnosis. This will avoid the pitfall of implementing unnecessary and inappropriate traditional dental treatments in hopes of alleviating this neurovascular pain. This is part 2 of a review on trigeminal autonomic cephalalgias and focuses on PH. Aspects of PH including epidemiology, genetics, pathophysiology, clinical presentation, classification and variants, diagnosis, medical management, and dental considerations are discussed.

  16. First Annual High-Speed Research Workshop, part 2

    NASA Technical Reports Server (NTRS)

    Whitehead, Allen H., Jr. (Compiler)

    1992-01-01

    This workshop provided a national forum for presenting and discussing important technology issues related to the definition of an economically viable and environmentally compatible High Speed Civil Transport. The workshop was organized into 13 sessions. This volume is part 2 of 4 and covers 4 of the 13 sessions: (1) source noise; (2) sonic boom (aerodynamic performance); (3) propulsion systems studies; and (4) emission reduction.

  17. Performance of local correlation methods for halogen bonding: The case of Br{sub 2}–(H{sub 2}O){sub n},n = 4,5 clusters and Br{sub 2}@5{sup 12}6{sup 2} clathrate cage

    SciTech Connect

    Batista-Romero, Fidel A.; Bernal-Uruchurtu, Margarita I.; Hernández-Lamoneda, Ramón; Pajón-Suárez, Pedro

    2015-09-07

    The performance of local correlation methods is examined for the interactions present in clusters of bromine with water where the combined effect of hydrogen bonding (HB), halogen bonding (XB), and hydrogen-halogen (HX) interactions lead to many interesting properties. Local methods reproduce all the subtleties involved such as many-body effects and dispersion contributions provided that specific methodological steps are followed. Additionally, they predict optimized geometries that are nearly free of basis set superposition error that lead to improved estimates of spectroscopic properties. Taking advantage of the local correlation energy partitioning scheme, we compare the different interaction environments present in small clusters and those inside the 5{sup 12}6{sup 2} clathrate cage. This analysis allows a clear identification of the reasons supporting the use of local methods for large systems where non-covalent interactions play a key role.

  18. In vitro bio-functional performances of the novel superelastic beta-type Ti-23Nb-0.7Ta-2Zr-0.5N alloy.

    PubMed

    Ion, Raluca; Gordin, Doina-Margareta; Mitran, Valentina; Osiceanu, Petre; Dinescu, Sorina; Gloriant, Thierry; Cimpean, Anisoara

    2014-02-01

    The materials used for internal fracture fixations and joint replacements are mainly made of metals which still face problems ranging from higher rigidity than that of natural bone to leaching cytotoxic metallic ions. Beta (β)-type titanium alloys with low elastic modulus made from non-toxic and non-allergenic elements are desirable to reduce stress shielding effect and enhance bone remodeling. In this work, a new β-type Ti-23Nb-0.7Ta-2Zr-0.5N alloy with a Young's modulus of approximately 50 GPa was designed and characterized. The behavior of MC3T3-E1 pre-osteoblasts on the new alloy, including adhesion, proliferation and differentiation, was evaluated by examining the cytoskeleton, focal adhesion formation, metabolic activity and extracellular matrix mineralization. Results indicated that the pre-osteoblast cells exhibited a similar degree of attachment and growth on Ti-23Nb-0.7Ta-2Zr-0.5N and Ti-6Al-4V. However, the novel alloy proved to be significantly more efficient in sustaining mineralized matrix deposition upon osteogenic induction of the cells than Ti-6Al-4V control. Further, the analysis of RAW 264.7 macrophages cytokine gene and protein expression indicated no significant inflammatory response. Collectively, these findings suggest that the Ti-23Nb-0.7Ta-2Zr-0.5N alloy, which has an increased mechanical biocompatibility with bone, allows a better osteogenic differentiation of osteoblast precursor cells than Ti-6Al-4V and holds great potential for future clinical prosthetic applications.

  19. Predictors of performance on the National Board of Chiropractic Examiners Parts I and II*

    PubMed Central

    McCall, Angela R.; Harvey, Richard D.

    2014-01-01

    Objective The purpose of this study was to examine predictors for success on Parts I and II of the National Board of Chiropractic Examiners (NBCE) written examinations. Methods Two validity studies were conducted to examine the criterion validity of Logan College assessments for Part I and II NBCE scores. Both studies consisted of a longitudinal design to examine the validity of entrance grade point average (GPA), in-program chiropractic course content GPA, and an institutional practice exam on Parts I and II of the NBCE. Results Analyses revealed that Part I GPA and practice exam scores combined accounted for 72% of the variance within Part I NBCE scores. Furthermore, every subtest of the Part I NBCE could be reliably predicted by course performance. In the 2nd study, Part I GPA, Part I NBCE score, and Part II GPA accounted for 75% of the variance within Part II NBCE scores. Conclusions Internal training and educational assessments (eg, course grades and practice exams) proved to be strong determinants of NBCE performance above and beyond initial levels of preparedness, thus validating the impact of the chiropractic curriculum on NBCE test achievement. PMID:24611459

  20. The quality and performance of the organic non-linear optical material (-)2-(α-methylbenzylamino)-5-nitropyridine (MBA-NP)

    NASA Astrophysics Data System (ADS)

    Bailey, R. T.; Cruickshank, F. R.; Guthrie, S. M. G.; McArdle, B. J.; Morrison, H.; Pugh, D.; Shepherd, E. A.; Sherwood, J. N.; Yoon, C. S.; Kashyap, R.; Nayar, B. K.; White, K. I.

    1988-02-01

    Large (7x4x4 cm 3) crystals of the organic, nonlinear optical material NBA-NP have been prepared by growth from solution, in an optically and structurally highly perfect state. Oriented, cut and polished specimens were examined by the Maker fringe technique. Analysis of the data yielded a coherence length of 2 μm (cf. MNA 0.7 μm and quartz 20 μm). Type I, phase-matched second harmonic generation (efficiency 0.5% at 58.8 MW cm -2; comparable with lithium iodate) was observed for 1.05 μm radiation incident at 28.8° to the y-axis on the y- z incident plane. There was no evidence of type II phase matching.