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Sample records for technology nist performed

  1. Advances in Measurement Technology at NIST's Physical Measurement Laboratory

    Science.gov (United States)

    Dehmer, Joseph

    2014-03-01

    The NIST mission is to promote U.S. innovation and industrial competitiveness by advancing measurement science, standards, and technology. The Physical Measurement Laboratory (PML) has responsibility for maintaining national standards for two dozen physical quantities needed for international trade; and, importantly, it carries out advanced research at the frontiers of measurement science to enable extending innovation into new realms and new markets. This talk will highlight advances being made across several sectors of technology; and it will describe how PML interacts with its many collaborators and clients in industry, government, and academe.

  2. Activities of NIST (National Inst. of Standards and Technology)

    Science.gov (United States)

    1992-01-01

    The Radiometric Physics Division of the NIST is responsible for the national standards in radiation thermometry, spectroradiometry, photometry, and spectrophotometry; dissemination of these standards by providing measurement services to customers requiring calibrations of the highest accuracy; and conducting fundamental and applied research to develop the scientific basis for future measurement services. Its relevance to EOS/TIR calibration includes calibrating unknown blackbody for radiance using a well-characterized NIST blackbody source by matching the radiant fluxes with an IR radiometer. The TIR Round Robin is used to verify the calibration of the sources that are used for the absolute radiometric calibration of the individual EOS sensors.

  3. The NIST Green Building Program

    Energy Technology Data Exchange (ETDEWEB)

    Hill, J.E. [National Institute of Standards and Technology (NIST), Gaithersburg, MD (United States)

    1994-12-31

    For over 2 decades, NIST has been involved in energy conservation programs. NIST`s current programs broadly span the areas from waste minimization to air, soil, water, indoor air quality, ozone depletion, and global warming. The latest endeavor NIST is undertaking is the {open_quotes}Green Building Program{close_quotes} in which NIST is at the forefront of designing buildings using environmentally safe materials. NIST`s program has two components. The laboratory-based activities involve NIST staff working directly with manufacturers and designers to develop technologies conducive to energy efficiency. The second component, demonstration buildings, includes environmentally safe buildings which are monuments to green technologies. These buildings not only demonstrate cost effectiveness and evaluate green technologies, they also identify new technologies needed to develop an effective green building.

  4. Improving the performance of the NIST five axis goniospectrometer for measurements of bidirectional reflectance distribution function

    Science.gov (United States)

    Podobedov, V. B.; Nadal, M. E.; Miller, C. C.

    2011-05-01

    The five axis goniospectrometer at the National Institute of Standards and Technology (NIST) measures the spectral reflectance of colored samples over a wide range of illumination and viewing angles. This capability is important for the colorimetric characterization of complex materials, such as gonioapparent coatings or retroreflective surfaces. To improve the efficiency of the goniometer, a broad-band source with a matrix-based stray-light corrected CCD based spectrometer was implemented. This new configuration offers a significant reduction in the measurement time allowing for the complete characterization of the goniodistribution of complex materials. Shorter measurement time reduces the load on the precise mechanical assembly, to ensure high angular accuracy over time. Special care was taken to extend the effective dynamic range of measured intensities in the multichannel detection mode to the values of 106 - 107 needed for the characterization of colored samples. The expanded uncertainty of the measured Bidirectional Reflectance Distribution Function (BRDF) for this new setup is about 0.5 % (k = 2) which is comparable to the uncertainty levels of the instrument operating with monochromatic illumination and a silicon photodiode. To validate the new system configuration, the measured BRDF or spectral reflectance factors (R) of test samples were compared with different instruments and we found an agreement of about 0.5 %.

  5. Transferability of ASTM/NIST alanine-polyethylene recipe at ISS. American Society for Testing and Materials/National Institute for Standards and Technology. Istituto Superiore de Sanita

    Science.gov (United States)

    De Angelis C; Fattibene; Onori; Petetti; Bartolotta; Sansone Santamaria A

    2000-05-01

    Alanine-polyethylene solid state dosimeters were prepared at Istituto Superiore di Sanita (ISS) following the recipe proposed by National Institute of Standards and Technology (NIST) with the goal of testing its transferability. Dosimeters were prepared using 95% alanine and 5% polyethylene, by weight. They are rugged and of increased sensitivity, repeatability and reproducibility as respect to the ISS alanine-paraffin pellets. Reproducibility of about 1% was obtained at 10 Gy and at 3 Gy if one single pellet or a stack of five dosimeters were used, respectively.

  6. The NIST Primary Radon-222 Measurement System

    OpenAIRE

    Collé, R.; Hutchinson, J. M. R.; Unterweger, M. P.

    1990-01-01

    Within the United States, the national standard for radon measurements is embodied in a primary radon measurement system that has been maintained for over 50 years to accurately measure radon (222Rn) against international and national radium (226Ra) standards. In turn, all of the radon measurements made at the National Institute of Standards and Technology (NIST) and the radon transfer calibration standards and calibration services provided by NIST are directly related to this national radon ...

  7. 76 FR 27305 - Proposed Information Collection; Comment Request; the NIST Summer Institute for Middle School...

    Science.gov (United States)

    2011-05-11

    ... Summer Institute for Middle School Science Teachers (NIST Summer Institute) and the NIST Research Experience for Teachers (NIST RET) Application Requirements AGENCY: National Institute of Standards and Technology (NIST), Commerce. ACTION: Notice. SUMMARY: The Department of Commerce, as part of its...

  8. NIST Gonio-spectroradiometer

    Data.gov (United States)

    Federal Laboratory Consortium — The NIST gonio-spectroradiometer is used to measure total spectral radiant flux (TSRF) of incandescent lamps. The instrument consists of a 3-axis scanning mechanism;...

  9. 77 FR 18791 - Proposed Information Collection; Comment Request; NIST Associates Information System

    Science.gov (United States)

    2012-03-28

    ... National Institute of Standards and Technology Proposed Information Collection; Comment Request; NIST Associates Information System AGENCY: National Institute of Standards and Technology (NIST). ACTION: Notice... Associates Information System (NAIS) information collection instrument(s) are completed by incoming NAs. The...

  10. Annual Performance of a Two-Speed, Dedicated Dehumidification Heat Pump in the NIST Net-Zero Energy Residential Test Facility.

    Science.gov (United States)

    Payne, W Vance

    2016-01-01

    A 2715 ft(2) (252 m(2)), two story, residential home of the style typical of the Gaithersburg, Maryland area was constructed in 2012 to demonstrate technologies for net-zero energy (NZE) homes (or ZEH). The NIST Net-Zero Energy Residential Test Facility (NZERTF) functions as a laboratory to support the development and adoption of cost-effective NZE designs, technologies, construction methods, and building codes. The primary design goal was to meet the comfort and functional needs of the simulated occupants. The first annual test period began on July 1, 2013 and ended June 30, 2014. During the first year of operation, the home's annual energy consumption was 13039 kWh (4.8 kWh ft(-2), 51.7 kWh m(-2)), and the 10.2 kW solar photovoltaic system generated an excess of 484 kWh. During this period the heating and air conditioning of the home was performed by a novel air-source heat pump that utilized a reheat heat exchanger to allow hot compressor discharge gas to reheat the supply air during a dedicated dehumidification mode. During dedicated dehumidification, room temperature air was supplied to the living space until the relative humidity setpoint of 50% was satisfied. The heat pump consumed a total of 6225 kWh (2.3 kWh ft(-2,) 24.7 kWh m(-2)) of electrical energy for cooling, heating, and dehumidification. Annual cooling efficiency was 10.1 Btu W(-1)h(-1) (2.95 W W(-1)), relative to the rated SEER of the heat pump of 15.8 Btu W(-1)h(-1) (4.63 W W(-1)). Annual heating efficiency was 7.10 Btu W(-1)h(-1) (2.09 W W(-1)), compared with the unit's rated HSPF of 9.05 Btu W(-1)h(-1) (2.65 W W(-1)). These field measured efficiency numbers include dedicated dehumidification operation and standby energy use for the year. Annual sensible heat ratio was approximately 70%. Standby energy consumption was 5.2 % and 3.5 % of the total electrical energy used for cooling and heating, respectively.

  11. 76 FR 66040 - NIST Framework and Roadmap for Smart Grid Interoperability Standards, Release 2.0 (Draft...

    Science.gov (United States)

    2011-10-25

    ... National Institute of Standards and Technology NIST Framework and Roadmap for Smart Grid Interoperability... and Technology (NIST) seeks comments on the draft NIST Framework and Roadmap for Smart Grid..., 2011. The entire draft version of the NIST Framework and Roadmap for Smart Grid Interoperability...

  12. Performance of the NIST goniocolorimeter with a broad-band source and multichannel charged coupled device based spectrometer

    Science.gov (United States)

    Podobedov, V. B.; Miller, C. C.; Nadal, M. E.

    2012-09-01

    The authors describe the NIST high-efficiency instrument for measurements of bidirectional reflectance distribution function of colored materials, including gonioapparent materials such as metallic and pearlescent coatings. The five-axis goniospectrometer measures the spectral reflectance of samples over a wide range of illumination and viewing angles. The implementation of a broad-band source and a multichannel CCD spectrometer corrected for stray light significantly increased the efficiency of the goniometer. In the extended range of 380 nm to 1050 nm, a reduction of measurement time from a few hours to a few minutes was obtained. Shorter measurement time reduces the load on the precise mechanical assembly ensuring high angular accuracy over time. We describe the application of matrix-based correction of stray light and the extension of effective dynamic range of measured fluxes to the values of 106 to 107 needed for the absolute characterization of samples. The measurement uncertainty was determined to be 0.7% (k = 2), which is comparable with similar instruments operating in a single channel configuration. Several examples of reflectance data obtained with the improved instrument indicate a 0.3% agreement compared to data collected with the single channel configuration.

  13. Emergency radiobioassay preparedness exercises through the NIST radiochemistry intercomparison program.

    Science.gov (United States)

    Nour, Svetlana; LaRosa, Jerry; Inn, Kenneth G W

    2011-08-01

    The present challenge for the international emergency radiobioassay community is to analyze contaminated samples rapidly while maintaining high quality results. The National Institute of Standards and Technology (NIST) runs a radiobioassay measurement traceability testing program to evaluate the radioanalytical capabilities of participating laboratories. The NIST Radiochemistry Intercomparison Program (NRIP) started more than 10 years ago, and emergency performance testing was added to the program seven years ago. Radiobioassay turnaround times under the NRIP program for routine production and under emergency response scenarios are 60 d and 8 h, respectively. Because measurement accuracy and sample turnaround time are very critical in a radiological emergency, response laboratories' analytical systems are best evaluated and improved through traceable Performance Testing (PT) programs. The NRIP provides participant laboratories with metrology tools to evaluate their performance and to improve it. The program motivates the laboratories to optimize their methodologies and minimize the turnaround time of their results. Likewise, NIST has to make adjustments and periodical changes in the bioassay test samples in order to challenge the participating laboratories continually. With practice, radioanalytical measurements turnaround time can be reduced to 3-4 h.

  14. Improved efficiency of extraction of polycyclic aromatic hydrocarbons (PAHs) from the National Institute of Standards and Technology (NIST) Standard Reference Material Diesel Particulate Matter (SRM 2975) using accelerated solvent extraction.

    Science.gov (United States)

    Masala, Silvia; Ahmed, Trifa; Bergvall, Christoffer; Westerholm, Roger

    2011-12-01

    The efficiency of extraction of polycyclic aromatic hydrocarbons (PAHs) with molecular masses of 252, 276, 278, 300, and 302 Da from standard reference material diesel particulate matter (SRM 2975) has been investigated using accelerated solvent extraction (ASE) with dichloromethane, toluene, methanol, and mixtures of toluene and methanol. Extraction of SRM 2975 using toluene/methanol (9:1, v/v) at maximum instrumental settings (200 °C, 20.7 MPa, and five extraction cycles) with 30-min extraction times resulted in the following elevations of the measured concentration when compared with the certified and reference concentrations reported by the National Institute of Standards and Technology (NIST): benzo[b]fluoranthene, 46%; benzo[k]fluoranthene, 137%; benzo[e]pyrene, 103%; benzo[a]pyrene, 1,570%; perylene, 37%; indeno[1,2,3-cd]pyrene, 41%; benzo[ghi]perylene, 163%; and coronene, 361%. The concentrations of the following PAHs were comparable to the reference values assigned by NIST: indeno[1,2,3-cd]fluoranthene, dibenz[a,h]anthracene, and picene. The measured concentration of dibenzo[a,e]-pyrene was lower than the information value reported by the NIST. The measured concentrations of other highly carcinogenic PAHs (dibenzo[a,l]pyrene, dibenzo[a,i]pyrene, and dibenzo[a,h]pyrene) in SRM 2975 are also reported. Comparison of measurements using the optimized ASE method and using similar conditions to those applied by the NIST for the assignment of PAH concentrations in SRM 2975 indicated that the higher values obtained in the present study were associated with more complete extraction of PAHs from the diesel particulate material. Re-extraction of the particulate samples demonstrated that the deuterated internal standards were more readily recovered than the native PAHs, which may explain the lower values reported by the NIST. The analytical results obtained in the study demonstrated that the efficient extraction of PAHs from SRM 2975 is a critical requirement for the

  15. NIST Infrared Blackbody Calibration Support for Climate Change Research

    Science.gov (United States)

    Hanssen, L. M.; Zeng, J.; Mekhontsev, S.; Khromchenko, V.

    2012-12-01

    The National Institute of Technology (NIST) Sensor Science Division has established measurement capabilities in support of various existing and planned satellite programs, which monitor key parameters for the study of climate change, such as solar irradiance, earth radiance, and atmospheric effects. These capabilities include the characterization of infrared reference blackbody sources and cavity radiometers, as well as the materials used to coat the cavity surfaces. In order to accurately measure high levels of effective emissivity and absorptance of cavities, NIST has developed a laser- and integrating-sphere-based facility (the Complete Hemispherical Infrared Laser-based Reflectometer (CHILR)). The system is used for both radiometer and blackbody cavity characterization. Multiple laser sources with wavelengths ranging from 1.5 μm to 23 μm are used to perform reflectance (1 - emissivity (or absorptance)) measurements of radiometer cavities. Measurements have been performed for numerous instruments including the Internal Calibration Target (ICT)) blackbody source used for calibration of the Cross track Infrared Sounder (CrIS), and the Total Irradiance Monitor (TIM) instrument on the Solar Radiation and Climate Experiment (SORCE), both for the Joint Polar Satellite System (JPSS), as well as the Active Cavity Radiometer Irradiance Monitor (ACRIM) instrument, and blackbodies constructed for prototyping of an infrared instrument on the Climate Absolute Radiance and Refractivity Observatory (CLARREO). For a more comprehensive understanding of the measurement results, NIST has also measured samples of the coated surfaces of the cavities and associated baffles. This includes several types of reflectance measurements: specular, directional-hemispherical (diffuse), and bi-directional distribution function (BRDF). The first two are performed spectrally and provide information that enables estimation of the cavity performance where laser sources for CHILR are not available

  16. Measurement quality assurance for beta particle calibrations at NIST

    Energy Technology Data Exchange (ETDEWEB)

    Soares, C.G.; Pruitt, J.S. [National Institute of Standards and Technology, Gaithersburg, MD (United States)

    1993-12-31

    Standardized beta-particle fields have been established in an international standard and have been adopted for use in several U.S. dosimeter and instrument testing standards. Calibration methods and measurement quality assurance procedures employed at the National Institute of Standards and Technology (NIST) for beta-particle calibrations in these reference fields are discussed. The calibration facility including the NIST-automated extrapolation ionization chamber is described, and some sample results of calibrations are shown. Methods for establishing and maintaining traceability to NIST of secondary laboratories are discussed. Currently, there are problems in finding a good method for routine testing of traceability to NIST. Some examples of past testing methods are given and solutions to this problem are proposed.

  17. NIST Gas Hydrate Research Database and Web Dissemination Channel.

    Science.gov (United States)

    Kroenlein, K; Muzny, C D; Kazakov, A; Diky, V V; Chirico, R D; Frenkel, M; Sloan, E D

    2010-01-01

    To facilitate advances in application of technologies pertaining to gas hydrates, a freely available data resource containing experimentally derived information about those materials was developed. This work was performed by the Thermodynamic Research Center (TRC) paralleling a highly successful database of thermodynamic and transport properties of molecular pure compounds and their mixtures. Population of the gas-hydrates database required development of guided data capture (GDC) software designed to convert experimental data and metadata into a well organized electronic format, as well as a relational database schema to accommodate all types of numerical and metadata within the scope of the project. To guarantee utility for the broad gas hydrate research community, TRC worked closely with the Committee on Data for Science and Technology (CODATA) task group for Data on Natural Gas Hydrates, an international data sharing effort, in developing a gas hydrate markup language (GHML). The fruits of these efforts are disseminated through the NIST Sandard Reference Data Program [1] as the Clathrate Hydrate Physical Property Database (SRD #156). A web-based interface for this database, as well as scientific results from the Mallik 2002 Gas Hydrate Production Research Well Program [2], is deployed at http://gashydrates.nist.gov.

  18. Conversion Preliminary Safety Analysis Report for the NIST Research Reactor

    Energy Technology Data Exchange (ETDEWEB)

    Diamond, D. J. [Brookhaven National Lab. (BNL), Upton, NY (United States); Baek, J. S. [Brookhaven National Lab. (BNL), Upton, NY (United States); Hanson, A. L. [Brookhaven National Lab. (BNL), Upton, NY (United States); Cheng, L-Y [Brookhaven National Lab. (BNL), Upton, NY (United States); Brown, N. [Brookhaven National Lab. (BNL), Upton, NY (United States); Cuadra, A. [Brookhaven National Lab. (BNL), Upton, NY (United States)

    2015-01-30

    The NIST Center for Neutron Research (NCNR) is a reactor-laboratory complex providing the National Institute of Standards and Technology (NIST) and the nation with a world-class facility for the performance of neutron-based research. The heart of this facility is the NIST research reactor (aka NBSR); a heavy water moderated and cooled reactor operating at 20 MW. It is fueled with high-enriched uranium (HEU) fuel elements. A Global Threat Reduction Initiative (GTRI) program is underway to convert the reactor to low-enriched uranium (LEU) fuel. This program includes the qualification of the proposed fuel, uranium and molybdenum alloy foil clad in an aluminum alloy, and the development of the fabrication techniques. This report is a preliminary version of the Safety Analysis Report (SAR) that would be submitted to the U.S. Nuclear Regulatory Commission (NRC) for approval prior to conversion. The report follows the recommended format and content from the NRC codified in NUREG-1537, “Guidelines for Preparing and Reviewing Applications for the Licensing of Non-power Reactors,” Chapter 18, “Highly Enriched to Low-Enriched Uranium Conversions.” The emphasis in any conversion SAR is to explain the differences between the LEU and HEU cores and to show the acceptability of the new design; there is no need to repeat information regarding the current reactor that will not change upon conversion. Hence, as seen in the report, the bulk of the SAR is devoted to Chapter 4, Reactor Description, and Chapter 13, Safety Analysis.

  19. 76 FR 20633 - Announcement of Meeting to Explore Feasibility of Establishing a NIST/Industry Consortium on...

    Science.gov (United States)

    2011-04-13

    ... Establishing a NIST/Industry Consortium on Neutron Measurements for Soft Materials Manufacturing AGENCY... National Institute of Standards and Technology (NIST) invites interested parties to attend a pre-consortium... industry interest in creating a NIST/industry consortium focused on advanced neutron-based probes for...

  20. Re-calibration of the NIST SRM 2059 master standard using traceable atomic force microscope metrology

    Science.gov (United States)

    Dixson, Ronald; Potzick, James; Orji, Ndubuisi G.

    2008-10-01

    The current photomask linewidth Standard Reference Material (SRM) supplied by the National Institute of Standards and Technology (NIST), SRM 2059, is the fifth generation of such standards for mask metrology. An in house optical microscope tool developed at NIST, called the NIST ultra-violet (UV) microscope, was used in transmission mode to calibrate the SRM 2059 photomasks. Due to the limitations of available optical models for determining the edge response in the UV microscope, the tool was used in a comparator mode. One of the masks was selected as a master standard - and the features on this mask were calibrated using traceable critical dimension atomic force microscope (CD-AFM) dimensional metrology. The optical measurements were then used to determine the relative offsets between the widths on the master standard and individual masks for sale to customers. At the time of these measurements, however, the uncertainties in the CD-AFM reference metrology on the master standard were larger than can now be achieved because the NIST single crystal critical dimension reference material (SCCDRM) project had not been completed. Using our CD-AFM at NIST, we have performed new measurements on the SRM 2059 master standard. The new AFM results are in agreement with the prior measurements and have expanded uncertainties approximately one fourth of those of the earlier results for sub-micrometer features. When the optical comparator data for customers masks are reanalyzed using these new AFM results, we expect to reduce the combined reported uncertainties for the linewidths on the actual SRMs by at least 40 % for the nominal 0.25 μm features.

  1. Broadening the Demographics at NIST

    Science.gov (United States)

    Gebbie, Katharine B.

    2001-04-01

    Scientists have the rare privilege of earning their living by doing what they most enjoy. Women and minorities have the right, the need and the talent to compete for that privilege. And if the profession is to serve its goal of advancing, diffusing and applying the knowledge of science, it must draw upon the widest possible spectrum of talented individuals--the best and the brightest from all segments of society. This talk will discuss and evaluate efforts at NIST to ensure that women and minorities have the opportunity to participate fully in the scientific endeavor. These efforts include close collaboration with predominantly female and minority colleges; programs for students interested in pursuing advanced education; and a Summer Undergraduate Research Fellowship (SURF) program, sponsored jointly with NSF, that affords 50 students the opportunity to spend 12 weeks engaged one-on-one with NIST scientists in projects combining quests for fundamental knowledge with direct applications to problems of national importance.

  2. 75 FR 57898 - NIST Blue Ribbon Commission on Management and Safety-II

    Science.gov (United States)

    2010-09-23

    ... sector experience in one or more of the following areas: (a) Management and organizational structure; (b... National Institute of Standards and Technology NIST Blue Ribbon Commission on Management and Safety--II... establishment of the NIST Blue Ribbon Commission on Management and Safety--II and Notice of Open...

  3. NIST Calibration of a Neutron Spectrometer ROSPEC.

    Science.gov (United States)

    Heimbach, Craig

    2006-01-01

    A neutron spectrometer was acquired for use in the measurement of National Institute of Standards and Technology neutron fields. The spectrometer included options for the measurement of low and high energy neutrons, for a total measurement range from 0.01 eV up to 17 MeV. The spectrometer was evaluated in calibration fields and was used to determine the neutron spectrum of an Americium-Beryllium neutron source. The calibration fields used included bare and moderated (252)Cf, monoenergetic neutron fields of 2.5 MeV and 14 MeV, and a thermal-neutron beam. Using the calibration values determined in this exercise, the spectrometer gives a good approximation of the neutron spectrum, and excellent values for neutron fluence, for all NIST calibration fields. The spectrometer also measured an Americium-Beryllium neutron field in a NIST exposure facility and determined the field quite well. The spectrometer measured scattering effects in neutron spectra which previously could be determined only by calculation or integral measurements.

  4. Technology Performance Level Assessment Methodology.

    Energy Technology Data Exchange (ETDEWEB)

    Roberts, Jesse D.; Bull, Diana L; Malins, Robert Joseph; Costello, Ronan Patrick; Aurelien Babarit; Kim Nielsen; Claudio Bittencourt Ferreira; Ben Kennedy; Kathryn Dykes; Jochem Weber

    2017-04-01

    The technology performance level (TPL) assessments can be applied at all technology development stages and associated technology readiness levels (TRLs). Even, and particularly, at low TRLs the TPL assessment is very effective as it, holistically, considers a wide range of WEC attributes that determine the techno-economic performance potential of the WEC farm when fully developed for commercial operation. The TPL assessment also highlights potential showstoppers at the earliest possible stage of the WEC technology development. Hence, the TPL assessment identifies the technology independent “performance requirements.” In order to achieve a successful solution, the entirety of the performance requirements within the TPL must be considered because, in the end, all the stakeholder needs must be achieved. The basis for performing a TPL assessment comes from the information provided in a dedicated format, the Technical Submission Form (TSF). The TSF requests information from the WEC developer that is required to answer the questions posed in the TPL assessment document.

  5. Precision performance lamp technology

    Science.gov (United States)

    Bell, Dean A.; Kiesa, James E.; Dean, Raymond A.

    1997-09-01

    A principal function of a lamp is to produce light output with designated spectra, intensity, and/or geometric radiation patterns. The function of a precision performance lamp is to go beyond these parameters and into the precision repeatability of performance. All lamps are not equal. There are a variety of incandescent lamps, from the vacuum incandescent indictor lamp to the precision lamp of a blood analyzer. In the past the definition of a precision lamp was described in terms of wattage, light center length (LCL), filament position, and/or spot alignment. This paper presents a new view of precision lamps through the discussion of a new segment of lamp design, which we term precision performance lamps. The definition of precision performance lamps will include (must include) the factors of a precision lamp. But what makes a precision lamp a precision performance lamp is the manner in which the design factors of amperage, mscp (mean spherical candlepower), efficacy (lumens/watt), life, not considered individually but rather considered collectively. There is a statistical bias in a precision performance lamp for each of these factors; taken individually and as a whole. When properly considered the results can be dramatic to the system design engineer, system production manage and the system end-user. It can be shown that for the lamp user, the use of precision performance lamps can translate to: (1) ease of system design, (2) simplification of electronics, (3) superior signal to noise ratios, (4) higher manufacturing yields, (5) lower system costs, (6) better product performance. The factors mentioned above are described along with their interdependent relationships. It is statistically shown how the benefits listed above are achievable. Examples are provided to illustrate how proper attention to precision performance lamp characteristics actually aid in system product design and manufacturing to build and market more, market acceptable product products in the

  6. Human Performance Technology and HRD

    Science.gov (United States)

    Carliner, Saul

    2014-01-01

    Performance--the achievement of results--is central to definitions of HRD. Performance Technology (HPT) refers to a systematic methodology for developing performance in individuals and organizations. Through a systematic process, HPT explores issues at the organizational, unit, and individual level, and with skills and knowledge, resources, and…

  7. 75 FR 1595 - Establishment of NIST Smart Grid Advisory Committee and Solicitation of Nominations for Members

    Science.gov (United States)

    2010-01-12

    ... (Committee). The Committee will advise the Director of NIST in carrying out duties authorized by the Energy... the discretion of the Director of NIST. The Vice Chairperson shall perform the duties of the... Authority The Smart Grid Advisory Committee (Committee), is established to advise the Director of...

  8. 76 FR 66040 - Announcement of Meeting To Explore Feasibility of Establishing a NIST/Industry Consortium on...

    Science.gov (United States)

    2011-10-25

    ... National Institute of Standards and Technology Announcement of Meeting To Explore Feasibility of Establishing a NIST/Industry Consortium on ``Concrete Rheology: Enabling Metrology (CREME)'' AGENCY: National... Institute of Standards and Technology (NIST) invites interested parties to attend a pre-consortium...

  9. NIST Computer Scientist and Researcher Dr. Ron Ross Discusses Cybersecurity During Latest SGL

    OpenAIRE

    2010-01-01

    National Institute of Standards and Technology (NIST) senior computer scientist and information security researcher Dr. Ron Ross presented a lecture to students, staff and faculty on the new challenges in cybersecurity.

  10. Specular gloss scales comparison between the SIMT and the NIST

    Science.gov (United States)

    Yin, Dejin; Li, Tiecheng; Huang, Biyong; Cheng, Weihai; Lin, Fangsheng

    2016-09-01

    Specular gloss is the fraction of light reflected in the specular direction for specified incident and receptor apertures, it is the perception by an observer of the mirror-like appearance of a surface. The measurement of specular gloss consists of comparing the luminous reflectance from a test sample to that from a calibrated gloss standard which generally is a polished piece of black glass, under the same experimental conditions. Gloss is a dimensionless quantity whose accurate determination requires standardized experimental conditions such as spectral distribution of the incident beam of light, incident and viewing angles, and a gloss standard. The Shanghai Institute of Measurement and Testing Technology (SIMT) provides test service to calibrate gloss reference standards. This facility is built around a reference goniophotometer, containing an instrument that measures flux as a function of angles of illumination or observation and a primary gloss standard, which is a piece of three wedges of highly polished, high-quality optical glass. The system has an overall (k=2) uncertainty of 0.5 Gloss Unit(GU). The service offers calibration measurements of working gloss standards at the geometries of 20°, 60°, and 85°, in compliance with the ISO 2813 and the ASTM D523 documentary standards. This article describes a bilateral comparison of specular gloss scales between SIMT and the National Institute of Standards and Technology (NIST) that has been performed. The results of this comparison show agreement within the combined uncertainties for the measurement of specular gloss of highly polished black glass.

  11. High Performance Tools And Technologies

    Energy Technology Data Exchange (ETDEWEB)

    Collette, M R; Corey, I R; Johnson, J R

    2005-01-24

    This goal of this project was to evaluate the capability and limits of current scientific simulation development tools and technologies with specific focus on their suitability for use with the next generation of scientific parallel applications and High Performance Computing (HPC) platforms. The opinions expressed in this document are those of the authors, and reflect the authors' current understanding and functionality of the many tools investigated. As a deliverable for this effort, we are presenting this report describing our findings along with an associated spreadsheet outlining current capabilities and characteristics of leading and emerging tools in the high performance computing arena. This first chapter summarizes our findings (which are detailed in the other chapters) and presents our conclusions, remarks, and anticipations for the future. In the second chapter, we detail how various teams in our local high performance community utilize HPC tools and technologies, and mention some common concerns they have about them. In the third chapter, we review the platforms currently or potentially available to utilize these tools and technologies on to help in software development. Subsequent chapters attempt to provide an exhaustive overview of the available parallel software development tools and technologies, including their strong and weak points and future concerns. We categorize them as debuggers, memory checkers, performance analysis tools, communication libraries, data visualization programs, and other parallel development aides. The last chapter contains our closing information. Included with this paper at the end is a table of the discussed development tools and their operational environment.

  12. Atomic Spectra Bibliography Databases at NIST

    Science.gov (United States)

    Kramida, Alexander

    2008-05-01

    NIST's Atomic Spectroscopy Data Center maintains three online Bibliographic Databases (BD) containing references to papers with atomic data for controlled fusion research, modeling and diagnostics of astrophysical and terrestrial plasmas, and fundamental properties of electronic spectra of atoms and ions. The NIST Atomic Energy Levels and Spectra BD [http://physics.nist.gov/elevbib] now includes about 11500 references, mostly for years 1967--2007. The NIST Atomic Transition Probability BD, v. 8.1 [http://physics.nist.gov/fvalbib] with its 7500 references mainly covers years 1964--2007. The NIST Spectral Line Broadening BD, v. 2.0 [http://physics.nist.gov/linebrbib] has 3670 references, mostly for 1978--2006. All three databases are maintained in a unified database management system that allows us to quickly update the contents. Updates become available to users on the next day. An automated Data Entry module makes it easy to enter and categorize the data. The system allows us to keep the contents of all BDs up to date. A number of enhancements made since last year greatly increased public usability of the databases. This work is supported in part by the Office of Fusion Energy Sciences of the U.S. Department of Energy and by the National Aeronautics and Space Administration.

  13. Integrating Human Performance and Technology

    Energy Technology Data Exchange (ETDEWEB)

    Ronald K. Farris; Heather Medema

    2012-05-01

    Human error is a significant factor in the cause and/or complication of events that occur in the commercial nuclear industry. In recent years, great gains have been made using Human Performance (HU) tools focused on targeting individual behaviors. However, the cost of improving HU is growing and resistance to add yet another HU tool certainly exists, particularly for those tools that increase the paperwork for operations. Improvements in HU that are the result of leveraging existing technology, such as hand-held mobile technologies, have the potential to reduce human error in controlling system configurations, safety tag-outs, and other verifications. Operator rounds, valve line-up verifications, containment closure verifications, safety & equipment protection, and system tagging can be supported by field-deployable wireless technologies. These devices can also support the availability of critical component data in the main control room and other locations. This research pilot project reviewing wireless hand-held technology is part of the Light Water Reactor Sustainability Program (LWRSP), a research and development (R&D) program sponsored by the U. S. Department of Energy (DOE). The project is being performed in close collaboration with industry R&D programs to provide the technical foundations for licensing, and managing the long-term, safe, and economical operation of current nuclear power plants. The LWRSP vision is to develop technologies and other solutions that can improve the reliability, sustain the safety, and extend the life of the current nuclear reactor fleet.

  14. Entry and Technological Performance in New Technology Domains : Technological Opportunities, Technology Competition and Technological Relatedness

    NARCIS (Netherlands)

    Leten, B.; Belderbos, R.; Van Looy, B.

    2016-01-01

    Entry and success in new technology domains (NTDs) is essential for firms' long-term performance. We argue that firms' choices to enter NTDs and their subsequent performance in these domains are not only governed by firm-level factors but also by environmental characteristics. Entry is encouraged by

  15. NIST traceable measurements of radiance and luminance levels of night-vision-goggle test-instruments

    Science.gov (United States)

    Eppeldauer, G. P.; Podobedov, V. B.

    2014-05-01

    In order to perform radiance and luminance level measurements of night-vision-goggle (NVG) test instruments, NIST developed new-generation transfer-standard radiometers (TR). The new TRs can perform low-level radiance and luminance measurements with SI traceability and low uncertainty. The TRs were calibrated against NIST detector/radiometer standards holding the NIST photometric and radiometric scales. An 815 nm diode laser was used at NIST for the radiance responsivity calibrations. A spectrally flat (constant) filter correction was made for the TRs to correct the spectral responsivity change of the built-in Si photodiode for LEDs peaking at different wavelengths in the different test sets. The radiance responsivity transfer to the test instruments (test-sets) is discussed. The radiance values of the test instruments were measured with the TRs. The TRs propagate the traceablity to the NIST detector-based reference scales. The radiance uncertainty obtained from three TR measurements was 4.6 % (𝑘=2) at a luminance of 3.43 x 10-4 cd/m2. The output radiance of the previously used IR sphere source and the radiance responsivity of a previously used secondary standard detector unit, which was originally calibrated against an IR sphere source, were also measured with the TRs. The performances of the NVG test instruments were evaluated and the manufacturer produced radiance and luminance levels were calibrated with SI/NIST traceability.

  16. NIST commitment to national MQA programs

    Energy Technology Data Exchange (ETDEWEB)

    Caswell, R.S. [National Institute of Standards and Technology, Gaithersburg, MD (United States)

    1993-12-31

    The program of the Ionizing Radiation Division, Physics Laboratory is discussed, especially relating to standards, calibrations, and measurement quality assurance (MQA). The NIST program is {open_quotes}vertically integrated,{close_quotes} meaning that activities extend from fundamental research to measurement research to supplying services and data. Typical methods NIST uses to assure the quality of the national standards are presented. Some of the programs in x-ray, gamma-ray, electron, neutron, and radioactivity research which support MQA are presented. Examples are given of MQA activities.

  17. 77 FR 52692 - NIST Federal Information Processing Standard (FIPS) 140-3 (Second Draft), Security Requirements...

    Science.gov (United States)

    2012-08-30

    ... National Institute of Standards and Technology NIST Federal Information Processing Standard (FIPS) 140-3... sections of Federal Information Processing Standard 140-3 (Second Draft), Security Requirements for... may be sent to: Chief, Computer Security Division, Information Technology Laboratory, Attention:...

  18. Supplemental Fingerprint Card Data (SFCD) for NIST Special Database 9

    Science.gov (United States)

    Supplemental Fingerprint Card Data (SFCD) for NIST Special Database 9 (PC database for purchase)   NIST Special Database 10 (Supplemental Fingerprint Card Data for Special Database 9 - 8-Bit Gray Scale Images) provides a larger sample of fingerprint patterns that have a low natural frequency of occurrence and transitional fingerprint classes in NIST Special Database 9. The software is the same code used with NIST Special Database 4 and 9. A newer version of the compression/decompression software on the CDROM can be found at the website http://www.nist.gov/itl/iad/ig/nigos.cfm as part of the NBIS package.

  19. Recent Developments in the NIST Atomic Databases

    Science.gov (United States)

    Kramida, Alexander

    2011-05-01

    New versions of the NIST Atomic Spectra Database (ASD, v. 4.0) and three bibliographic databases (Atomic Energy Levels and Spectra, v. 2.0, Atomic Transition Probabilities, v. 9.0, and Atomic Line Broadening and Shapes, v. 3.0) have recently been released. In this contribution I will describe the main changes in the way users get the data through the Web. The contents of ASD have been significantly extended. In particular, the data on highly ionized tungsten (W III-LXXIV) have been added from a recently published NIST compilation. The tables for Fe I and Fe II have been replaced with newer, much more extensive lists (10000 lines for Fe I). The other updated or new spectra include H, D, T, He I-II, Li I-III, Be I-IV, B I-V, C I-II, N I-II, O I-II, Na I-X, K I-XIX, and Hg I. The new version of ASD now incorporates data on isotopes of several elements. I will describe some of the issues the NIST ASD Team faces when updating the data.

  20. USCEA/NIST measurement assurance programs for the radiopharmaceutical and nuclear power industries

    Energy Technology Data Exchange (ETDEWEB)

    Golas, D.B. [Council for Energy Awareness, Washington, DC (United States)

    1993-12-31

    In cooperation with the U.S. Council for Energy Awareness (USCEA), the National Institute of Standards and Technology (NIST) supervises and administers two measurement assurance programs for radioactivity measurement traceability. One, in existence since the mid 1970s, provides traceability to suppliers of radiochemicals and radiopharmaceuticals, dose calibrators, and nuclear pharmacy services. The second program, begun in 1987, provides traceability to the nuclear power industry for utilities, source suppliers, and service laboratories. Each program is described, and the results of measurements of samples of known, but undisclosed activity, prepared at NIST and measured by the participants are presented.

  1. Cooperation, Technology, and Performance: A Case Study.

    Science.gov (United States)

    Cavanagh, Thomas; Dickenson, Sabrina; Brandt, Suzanne

    1999-01-01

    Describes the CTP (Cooperation, Technology, and Performance) model and explains how it is used by the Department of Veterans Affairs-Veteran's Benefit Administration (VBA) for training. Discusses task analysis; computer-based training; cooperative-based learning environments; technology-based learning; performance-assessment methods; courseware…

  2. Assessing Customer Satisfaction at the NIST Research Library: Essential Tool for Future Planning

    Science.gov (United States)

    Liu, Rosa; Allmang, Nancy

    2008-01-01

    This article describes a campus-wide customer satisfaction survey undertaken by the National Institute of Standards and Technology (NIST) Research Library in 2007. The methodology, survey instrument, data analysis, results, and actions taken in response to the survey are described. The outcome and recommendations will guide the library both…

  3. Assessing Customer Satisfaction at the NIST Research Library: Essential Tool for Future Planning

    Science.gov (United States)

    Liu, Rosa; Allmang, Nancy

    2008-01-01

    This article describes a campus-wide customer satisfaction survey undertaken by the National Institute of Standards and Technology (NIST) Research Library in 2007. The methodology, survey instrument, data analysis, results, and actions taken in response to the survey are described. The outcome and recommendations will guide the library both…

  4. Determination of water in NIST reference material for mineral oils

    Science.gov (United States)

    Cedergren; Nordmark

    2000-07-15

    The accuracy of the reference concentrations of moisture in electrical insulating oil RM 8506 and lubricating oil RM 8507 (both of mineral type) and specified by the National Institute of Standards and Technology (NIST) as containing 39.7 and 76.8 ppm (w/w) water, respectively, has recently been the subject of debate in this journal. To shed some further light on this controversy, we report in this correspondence results for these oils obtained by two additional methods, one based on specially designed reagents for diaphragm-free Karl Fischer (KF) coulometry and the other based on the concept of stripping at elevated temperature/continuous KF coulometry. A positive interference effect was shown to take place for RM 8506 when the direct coulometric method was used. If the results are corrected for this, the values including six different procedures varied in the range 13.5-15.6 ppm (w/w). For RM 8507, all values were between 42.5 and 47.2 ppm (w/w), which means that the values recommended by NIST for both reference oils using volumetric titration are about twice as high as those obtained with the other techniques. A possible explanation for this discrepancy is presented.

  5. Current Status of Atomic Spectroscopy Databases at NIST

    Science.gov (United States)

    Kramida, Alexander; Ralchenko, Yuri; Reader, Joseph

    2016-05-01

    NIST's Atomic Spectroscopy Data Center maintains several online databases on atomic spectroscopy. These databases can be accessed via the http://physics.nist.gov/PhysRefData web page. Our main database, Atomic Spectra Database (ASD), recently upgraded to v. 5.3, now contains critically evaluated data for about 250,000 spectral lines and 109,000 energy levels of almost all elements in the periodic table. This new version has added several thousand spectral lines and energy levels of Sn II, Mo V, W VIII, and Th I-III. Most of these additions contain critically evaluated transition probabilities important for astrophysics, technology, and fusion research. A new feature of ASD is providing line-ratio data for diagnostics of electron temperature and density in plasmas. Saha-Boltzmann plots have been modified by adding an experimental feature allowing the user to specify a multi-element mixture. We continue regularly updating our bibliography databases, ensuring comprehensive coverage of current literature on atomic spectra for energy levels, spectral lines, transition rates, hyperfine structure, isotope shifts, Zeeman and Stark effects. Our other popular databases, such as the Handbook of Basic Atomic Spectroscopy Data, searchable atlases of spectra of Pt-Ne and Th-Ne lamps, and non-LTE plasma-kinetics code comparisons, continue to be maintained.

  6. NIST Combinatorial Methods Center: Model for Industrial Outreach

    Science.gov (United States)

    Amis, Eric J.; Karim, Alamgir

    2002-03-01

    The measurements, standards, and test methods developed by NIST, in partnership with other organizations, often help unlock the potential of new discoveries and budding technologies. Combinatorial methods are a textbook example. These emerging tools can speed innovation in many fields - pharmaceuticals, chemistry, and, most recently, materials. In the diverse realm of materials, combinatorial methods hold promise for all classes, including metals, polymers, ceramics, and biomaterials. NIST has established the NCMC as a model for collaboration, in order to share expertise, facilities, resources, and information thereby reducing obstacles to participating in this fast-moving and instrument-intensive area. Although collaborations with multiple partners can be difficult, the goal is to foster cross-fertilization of ideas and research strategies, and to spur progress on many fronts by crossing boundaries of organizations, disciplines, and interests. Members have access to technical workshops, short courses, data libraries, and electronic bulletin boards; they can participate in non-proprietary focused projects; and they can enter into specific cooperative research and development agreements with controlled intellectual property.

  7. MO-D-BRD-04: NIST Air-Kerma Standard for Electronic Brachytherapy Calibrations

    Energy Technology Data Exchange (ETDEWEB)

    Mitch, M. [Nat’l Institute of Standards & Technology (United States)

    2015-06-15

    Electronic brachytherapy (eBT) has seen an insurgence of manufacturers entering the US market for use in radiation therapy. In addition to the established interstitial, intraluminary, and intracavitary applications of eBT, many centers are now using eBT to treat skin lesions. It is important for medical physicists working with electronic brachytherapy sources to understand the basic physics principles of the sources themselves as well as the variety of applications for which they are being used. The calibration of the sources is different from vendor to vendor and the traceability of calibrations has evolved as new sources came to market. In 2014, a new air-kerma based standard was introduced by the National Institute of Standards and Technology (NIST) to measure the output of an eBT source. Eventually commercial treatment planning systems should accommodate this new standard and provide NIST traceability to the end user. The calibration and commissioning of an eBT system is unique to its application and typically entails a list of procedural recommendations by the manufacturer. Commissioning measurements are performed using a variety of methods, some of which are modifications of existing AAPM Task Group protocols. A medical physicist should be familiar with the different AAPM Task Group recommendations for applicability to eBT and how to properly adapt them to their needs. In addition to the physical characteristics of an eBT source, the photon energy is substantially lower than from HDR Ir-192 sources. Consequently, tissue-specific dosimetry and radiobiological considerations are necessary when comparing these brachytherapy modalities and when making clinical decisions as a radiation therapy team. In this session, the physical characteristics and calibration methodologies of eBt sources will be presented as well as radiobiology considerations and other important clinical considerations. Learning Objectives: To understand the basic principles of electronic

  8. Performance Evaluation Methods for Assistive Robotic Technology

    Science.gov (United States)

    Tsui, Katherine M.; Feil-Seifer, David J.; Matarić, Maja J.; Yanco, Holly A.

    Robots have been developed for several assistive technology domains, including intervention for Autism Spectrum Disorders, eldercare, and post-stroke rehabilitation. Assistive robots have also been used to promote independent living through the use of devices such as intelligent wheelchairs, assistive robotic arms, and external limb prostheses. Work in the broad field of assistive robotic technology can be divided into two major research phases: technology development, in which new devices, software, and interfaces are created; and clinical, in which assistive technology is applied to a given end-user population. Moving from technology development towards clinical applications is a significant challenge. Developing performance metrics for assistive robots poses a related set of challenges. In this paper, we survey several areas of assistive robotic technology in order to derive and demonstrate domain-specific means for evaluating the performance of such systems. We also present two case studies of applied performance measures and a discussion regarding the ubiquity of functional performance measures across the sampled domains. Finally, we present guidelines for incorporating human performance metrics into end-user evaluations of assistive robotic technologies.

  9. New Metacognitive Model for Human Performance Technology

    Science.gov (United States)

    Turner, John R.

    2011-01-01

    Addressing metacognitive functions has been shown to improve performance at the individual, team, group, and organizational levels. Metacognition is beginning to surface as an added cognate discipline for the field of human performance technology (HPT). Advances from research in the fields of cognition and metacognition offer a place for HPT to…

  10. New Metacognitive Model for Human Performance Technology

    Science.gov (United States)

    Turner, John R.

    2011-01-01

    Addressing metacognitive functions has been shown to improve performance at the individual, team, group, and organizational levels. Metacognition is beginning to surface as an added cognate discipline for the field of human performance technology (HPT). Advances from research in the fields of cognition and metacognition offer a place for HPT to…

  11. Performance Contracting: Taking School Technology Green

    Science.gov (United States)

    Taival, Dane

    2009-01-01

    Energy efficiency makes fiscal and environmental sense, and so does energy savings performance contracting. Because an energy savings performance contract can create a self-funding package of products and services that reduce energy and operating costs, over time, school districts' sometimes-large initial investment in emerging technologies saves…

  12. PHYSICS AND SAFETY ANALYSIS FOR THE NIST RESEARCH REACTOR.

    Energy Technology Data Exchange (ETDEWEB)

    Cheng, L.; Diamond, D.; Xu, J.; Carew, J.; Rorer, D.

    2004-03-31

    Detailed reactor physics and safety analyses have been performed for the 20 MW D{sub 2}O moderated research reactor (NBSR) at the National Institute of Standards and Technology (NIST). The analyses provide an update to the Final Safety Analysis Report (FSAR) and employ state-of-the-art calculational methods. Three-dimensional Monte Carlo neutron and photon transport calculations were performed with the MCNP code to determine the safety parameters for the NBSR. The core depletion and determination of the fuel compositions were performed with MONTEBURNS. MCNP calculations were performed to determine the beginning, middle, and end-of-cycle power distributions, moderator temperature coefficient, and shim safety arm, beam tube and void reactivity worths. The calculational model included a plate-by-plate description of each fuel assembly, axial mid-plane water gap, beam tubes and the tubular geometry of the shim safety arms. The time-dependent analysis of the primary loop was determined with a RELAP5 transient analysis model that includes the pump, heat exchanger, fuel element geometry, and flow channels for both the six inner and twenty-four outer fuel elements. The statistical analysis used to assure protection from critical heat flux (CHF) was performed using a Monte Carlo simulation of the uncertainties contributing to the CHF calculation. The power distributions used to determine the local fuel conditions and margin to CHF were determined with MCNP. Evaluations were performed for the following accidents: (1) the control rod withdrawal startup accident, (2) the maximum reactivity insertion accident, (3) loss-of-flow resulting from loss of electrical power, (4) loss-of-flow resulting from a primary pump seizure, (5) loss-of-flow resulting from inadvertent throttling of a flow control valve, (6) loss-of-flow resulting from failure of both shutdown cooling pumps and (7) misloading of a fuel element. In both the startup and maximum reactivity insertion accidents, the

  13. 76 FR 67418 - Request for Comments on NIST Special Publication 500-293, US Government Cloud Computing...

    Science.gov (United States)

    2011-11-01

    .... SUPPLEMENTARY INFORMATION: The National Institute of Standards and Technology (NIST) has a technology leadership role in support of a secure and effectively adopted Cloud Computing model \\1\\ to reduce costs and improve services. This role is described ] in the 2011 Federal Cloud Computing Strategy \\2\\ as ``a central...

  14. Measurement of the Microwave Lensing shift in NIST-F1 and NIST-F2

    Science.gov (United States)

    Jefferts, S. R.; Heavner, T. P.; Barlow, S. E.; Ashby, N.

    2016-06-01

    With several Primary Frequency Standards (PFS) across the world demonstrating systematic fractional frequency uncertainties on order of 1 x 10-16, it is crucial to accurately measure or model even small frequency shifts that could affect the ultimate PFS uncertainty, and thus ultimately impact the rate of Coordinated Universal Time (UTC) which relies on precision PFS measurements. Recently there has been controversy about the physical causes and size of PFS frequency shifts due to microwave lensing effects. We present here the first measurements of microwave lensing frequency shifts in the PFS NIST-F1 and NIST-F2. The measured frequency shifts agree well with the recent theory of Ashby et al [1].

  15. Shifting Human Performance Technology to Management.

    Science.gov (United States)

    King, Stephen B.

    1998-01-01

    Describes the benefits and potential drawbacks of transferring HPT (human performance technology) skills from outside consultants to managers within organizations. Discusses HPT competence and control over work environment, the role of traditional HPT experts after the shift, and three approaches to implementing the change. (PEN)

  16. Electronics Technology. Performance Objectives. Basic Course.

    Science.gov (United States)

    Campbell, Guy

    Several intermediate performance objectives and corresponding criterion measures are listed for each of 20 terminal objectives for a basic electronics technology course. The materials were developed for a two-semester course (2 hours daily) designed to include instruction in basic electricity and electronic fundamentals, and to develop skills and…

  17. NIST high throughput variable kinetic energy hard X-ray photoelectron spectroscopy facility

    Energy Technology Data Exchange (ETDEWEB)

    Weiland, C., E-mail: cweiland@bnl.gov [National Institute of Standards and Technology, Gaithersburg, MD 20899 (United States); Rumaiz, A.K. [National Synchrotron Light Source, Brookhaven National Laboratory, Upton, NY 11973 (United States); Lysaght, P. [SEMATECH, 257 Fuller Road, Albany, NY 12203 (United States); Karlin, B.; Woicik, J.C.; Fischer, D. [National Institute of Standards and Technology, Gaithersburg, MD 20899 (United States)

    2013-10-15

    Highlights: •High throughput HAPXES beamline provides beam energies between 2.1 and 6 keV. •Recent results in depth profiling of materials for next-generation CMOS. •Facility ideal or measurement of energy level alignment at buried interfaces. •Approved beamline NSLS II will provide wider energy range and X-ray flux. -- Abstract: We present an overview of the National Institute of Standards and Technology beamline X24A at the National Synchrotron Light Source at Brookhaven National Lab and recent work performed at the facility. The beamline is equipped for HAXPES measurements, with an energy range from 2.1 to 6 keV with Si(1 1 1) crystals. Recent measurements performed at the beamline include non-destructive depth dependent variable kinetic energy measurements of dielectric and semiconductor films and interfaces for microelectronics applications, band alignment at buried interfaces, and the electronic structure of bulk-like materials. The design and operation of the current beamline will be discussed, as well as the future NIST beamline at NSLS II.

  18. Performance Engineering Technology for Scientific Component Software

    Energy Technology Data Exchange (ETDEWEB)

    Malony, Allen D.

    2007-05-08

    Large-scale, complex scientific applications are beginning to benefit from the use of component software design methodology and technology for software development. Integral to the success of component-based applications is the ability to achieve high-performing code solutions through the use of performance engineering tools for both intra-component and inter-component analysis and optimization. Our work on this project aimed to develop performance engineering technology for scientific component software in association with the DOE CCTTSS SciDAC project (active during the contract period) and the broader Common Component Architecture (CCA) community. Our specific implementation objectives were to extend the TAU performance system and Program Database Toolkit (PDT) to support performance instrumentation, measurement, and analysis of CCA components and frameworks, and to develop performance measurement and monitoring infrastructure that could be integrated in CCA applications. These objectives have been met in the completion of all project milestones and in the transfer of the technology into the continuing CCA activities as part of the DOE TASCS SciDAC2 effort. In addition to these achievements, over the past three years, we have been an active member of the CCA Forum, attending all meetings and serving in several working groups, such as the CCA Toolkit working group, the CQoS working group, and the Tutorial working group. We have contributed significantly to CCA tutorials since SC'04, hosted two CCA meetings, participated in the annual ACTS workshops, and were co-authors on the recent CCA journal paper [24]. There are four main areas where our project has delivered results: component performance instrumentation and measurement, component performance modeling and optimization, performance database and data mining, and online performance monitoring. This final report outlines the achievements in these areas for the entire project period. The submitted progress

  19. Performance Engineering Technology for Scientific Component Software

    Energy Technology Data Exchange (ETDEWEB)

    Malony, Allen D.

    2007-05-08

    Large-scale, complex scientific applications are beginning to benefit from the use of component software design methodology and technology for software development. Integral to the success of component-based applications is the ability to achieve high-performing code solutions through the use of performance engineering tools for both intra-component and inter-component analysis and optimization. Our work on this project aimed to develop performance engineering technology for scientific component software in association with the DOE CCTTSS SciDAC project (active during the contract period) and the broader Common Component Architecture (CCA) community. Our specific implementation objectives were to extend the TAU performance system and Program Database Toolkit (PDT) to support performance instrumentation, measurement, and analysis of CCA components and frameworks, and to develop performance measurement and monitoring infrastructure that could be integrated in CCA applications. These objectives have been met in the completion of all project milestones and in the transfer of the technology into the continuing CCA activities as part of the DOE TASCS SciDAC2 effort. In addition to these achievements, over the past three years, we have been an active member of the CCA Forum, attending all meetings and serving in several working groups, such as the CCA Toolkit working group, the CQoS working group, and the Tutorial working group. We have contributed significantly to CCA tutorials since SC'04, hosted two CCA meetings, participated in the annual ACTS workshops, and were co-authors on the recent CCA journal paper [24]. There are four main areas where our project has delivered results: component performance instrumentation and measurement, component performance modeling and optimization, performance database and data mining, and online performance monitoring. This final report outlines the achievements in these areas for the entire project period. The submitted progress

  20. First measurements of the flux integral with the NIST-4 watt balance

    CERN Document Server

    Haddad, D; Chao, L S; Cao, A; Sineriz, G; Pratt, J R; Newell, D B; Schlamminger, S

    2015-01-01

    In early 2014, construction of a new watt balance, named NIST-4, has started at the National Institute of Standards and Technology (NIST). In a watt balance, the gravitational force of an unknown mass is compensated by an electromagnetic force produced by a coil in a magnet system. The electromagnetic force depends on the current in the coil and the magnetic flux integral. Most watt balances feature an additional calibration mode, referred to as velocity mode, which allows one to measure the magnetic flux integral to high precision. In this article we describe first measurements of the flux integral in the new watt balance. We introduce measurement and data analysis techniques to assess the quality of the measurements and the adverse effects of vibrations on the instrument.

  1. The NIST Simple Guide for Evaluating and Expressing Measurement Uncertainty

    Science.gov (United States)

    Possolo, Antonio

    2016-11-01

    NIST has recently published guidance on the evaluation and expression of the uncertainty of NIST measurement results [1, 2], supplementing but not replacing B. N. Taylor and C. E. Kuyatt's (1994) Guidelines for Evaluating and Expressing the Uncertainty of NIST Measurement Results (NIST Technical Note 1297) [3], which tracks closely the Guide to the expression of uncertainty in measurement (GUM) [4], originally published in 1995 by the Joint Committee for Guides in Metrology of the International Bureau of Weights and Measures (BIPM). The scope of this Simple Guide, however, is much broader than the scope of both NIST Technical Note 1297 and the GUM, because it attempts to address several of the uncertainty evaluation challenges that have arisen at NIST since the 1990s, for example to include molecular biology, greenhouse gases and climate science measurements, and forensic science. The Simple Guide also expands the scope of those two other guidance documents by recognizing observation equations (that is, statistical models) as bona fide measurement models. These models are indispensable to reduce data from interlaboratory studies, to combine measurement results for the same measurand obtained by different methods, and to characterize the uncertainty of calibration and analysis functions used in the measurement of force, temperature, or composition of gas mixtures. This presentation reviews the salient aspects of the Simple Guide, illustrates the use of models and methods for uncertainty evaluation not contemplated in the GUM, and also demonstrates the NIST Uncertainty Machine [5] and the NIST Consensus Builder, which are web-based applications accessible worldwide that facilitate evaluations of measurement uncertainty and the characterization of consensus values in interlaboratory studies.

  2. Analysis of LOCA Scenarios in the NIST Research Reactor Before and After Fuel Conversion

    Energy Technology Data Exchange (ETDEWEB)

    Baek, J. S. [Brookhaven National Lab. (BNL), Upton, NY (United States); Cheng, L. Y. [Brookhaven National Lab. (BNL), Upton, NY (United States); Diamond, D. [Brookhaven National Lab. (BNL), Upton, NY (United States)

    2015-08-30

    An analysis has been done of hypothetical loss-of-coolant-accidents (LOCAs) in the research reactor (NBSR) at the National Institute of Standards and Technology (NIST). The purpose of the analysis is to determine if the peak clad temperature remains below the Safety Limit, which is the blister temperature for the fuel. The configuration of the NBSR considered in the analysis is that projected for the future when changes will be made so that shutdown pumps do not operate when a LOCA signal is detected. The analysis was done for the present core with high-enriched uranium (HEU) fuel and with the proposed low-enriched uranium (LEU) fuel that would be used when the NBSR is converted from one to the other. The analysis consists of two parts. The first examines how the water would drain from the primary system following a break and the possibility for the loss of coolant from within the fuel element flow channels. This work is performed using the TRACE system thermal-hydraulic code. The second looks at the fuel clad temperature as a function of time given that the water may have drained from many of the flow channels and the water in the vessel is in a quasi-equilibrium state. The temperature behavior is investigated using the three-dimensional heat conduction code HEATING7.3. The results in all scenarios considered for both HEU and LEU fuel show that the peak clad temperature remains below the blister temperature.

  3. Performance evaluation soil samples utilizing encapsulation technology

    Energy Technology Data Exchange (ETDEWEB)

    Dahlgran, James R.

    1997-12-01

    Performance evaluation soil samples and method of their preparation are described using encapsulation technology to encapsulate analytes which are introduced into a soil matrix for analysis and evaluation by analytical laboratories. Target analytes are mixed in an appropriate solvent at predetermined concentrations. The mixture is emulsified in a solution of polymeric film forming material. The emulsified solution is polymerized to form microcapsules. The microcapsules are recovered, quantitated and introduced into a soil matrix in a predetermined ratio to form soil samples with the desired analyte concentration.

  4. Characterization of LANDSAT Panels Using the NIST BRDF Scale from 1100 nm to 2500 nm

    Science.gov (United States)

    Markham, Brian; Tsai, Benjamin K.; Allen, David W.; Cooksey, Catherine; Yoon, Howard; Hanssen, Leonard; Zeng, Jinan; Fulton, Linda; Biggar, Stuart; Markham, Brian

    2010-01-01

    Many earth observing sensors depend on white diffuse reflectance standards to derive scales of radiance traceable to the St Despite the large number of Earth observing sensors that operate in the reflective solar region of the spectrum, there has been no direct method to provide NIST traceable BRDF measurements out to 2500 rim. Recent developments in detector technology have allowed the NIST reflectance measurement facility to expand the operating range to cover the 250 nm to 2500 nm range. The facility has been modified with and additional detector using a cooled extended range indium gallium arsenide (Extended InGaAs) detector. Measurements were made for two PTFE white diffuse reflectance standards over the 1100 nm to 2500 nm region at a 0' incident and 45' observation angle. These two panels will be used to support the OLI calibration activities. An independent means of verification was established using a NIST radiance transfer facility based on spectral irradiance, radiance standards and a diffuse reflectance plaque. An analysis on the results and associated uncertainties will be discussed.

  5. Single point optical calibration of accelerometers at NIST

    Science.gov (United States)

    Payne, Bev

    2006-06-01

    Typical accelerometer calibrations by laser interferometer are performed by measuring displacement at three places on the shaker table. Each of these measurements, made along the perimeter of the accelerometer, requires repositioning and realigning of the interferometer. This is done to approximate the actual displacement of the accelerometer. Using a dual-coil shaker with a small moving element and two coaxially-located and rigidly-attached mounting tables allows placing the accelerometer on one table and measuring displacement directly on the center axis of the second table. This was found to work effectively at lower frequencies, up to about 5 kHz, with mounting tables of conventional materials such as stainless steel. However, for higher frequencies the use of steel results in unwanted relative motion between the two mounting tables. Mounting tables of beryllium with nickel coating have been used at NIST to overcome this difficulty. This paper shows the calibration results of single point, on-axis measurements, using fringe counting and sine-approximation methods. The results compare favorably with three point measurements made by fringe disappearance using a conventional piezo-electric shaker at frequencies up to 15 kHz.

  6. Performance of the SDHCAL technological prototype

    CERN Document Server

    Grenier, Gérald

    2016-01-01

    The SDHCAL technological prototype is a $1 \\times 1 \\times 1.3$~m$^3$ high-granularity Semi-Digital Hadronic CALorimeter using Glass Resistive Plate Chambers as sensitive medium. It is one of the two HCAL options considered by the ILD Collaboration to be proposed for the detector of the future International Linear Collider project. The prototype is made of up to 50 GRPC detectors of 1~m$^2$ size and 3~mm thickness each with an embedded semi-digital electronics readout that is autotriggering and power-pulsed. The GRPC readout is finely segmented into pads of 1~cm$^2$. This proceeding describes the prototype, its operation and its performance in energy reconstruction. Aspects of the GRPC readout modelling and comparisons with simulations are also presented.

  7. The NIST eutectic project: construction of Co C, Pt C and Re C fixed-point cells and their comparison with the NMIJ

    Science.gov (United States)

    Sasajima, N.; Yoon, H. W.; Gibson, C. E.; Khromchenko, V.; Sakuma, F.; Yamada, Y.

    2006-04-01

    The National Institute of Standards and Technology (NIST) has initiated a project on novel high-temperature fixed-points by use of metal (carbide)-carbon eutectics to lower uncertainties in thermodynamic temperature measurement. As the first stage of the NIST eutectic project, a comparison of Co-C, Pt-C and Re-C eutectic fixed-point cells was conducted between the NIST and the National Metrology Institute of Japan (NMIJ) at the NIST to verify the quality of the NIST eutectic cells in addition to checking for possible furnace and radiation thermometer effects on the eutectic fixed-point realizations. In the comparison, two high-temperature furnaces, two radiation thermometers and one gold-point blackbody were used. A Nagano M furnace and a Linear Pyrometer 3 radiation thermometer were transferred from NMIJ and were used in conjunction with a Thermo Gauge furnace and an Absolute Pyrometer 1 radiation thermometer of NIST to check the dependence on the measurement equipment. The results showed that Co-C cells agreed to 73 mK. The melting temperature of the NIST Pt-C cell was approximately 270 mK lower than that of the NMIJ cell, with a comparison uncertainty of roughly 110 mK (k = 2), due to the poor purity of Pt powder. Although the Re-C comparison showed instability of the comparison system, they agreed within 100 mK. Though further improvement is necessary for the Pt-C cell, such as the use of higher purity Pt, the filling and measuring technique has been established at the NIST.

  8. Computational Fluid Dynamics Modeling of a wood-burning stove-heated sauna using NIST's Fire Dynamics Simulator

    CERN Document Server

    Macqueron, Corentin

    2014-01-01

    The traditional sauna is studied from a thermal and fluid dynamics standpoint using the NIST's Fire Dynamics Simulator (FDS) software. Calculations are performed in order to determine temperature and velocity fields, heat flux, soot and steam cloud transport, etc. Results are discussed in order to assess the reliability of this new kind of utilization of the FDS fire safety engineering software.

  9. Accident Analysis for the NIST Research Reactor Before and After Fuel Conversion

    Energy Technology Data Exchange (ETDEWEB)

    Baek J.; Diamond D.; Cuadra, A.; Hanson, A.L.; Cheng, L-Y.; Brown, N.R.

    2012-09-30

    Postulated accidents have been analyzed for the 20 MW D2O-moderated research reactor (NBSR) at the National Institute of Standards and Technology (NIST). The analysis has been carried out for the present core, which contains high enriched uranium (HEU) fuel and for a proposed equilibrium core with low enriched uranium (LEU) fuel. The analyses employ state-of-the-art calculational methods. Three-dimensional Monte Carlo neutron transport calculations were performed with the MCNPX code to determine homogenized fuel compositions in the lower and upper halves of each fuel element and to determine the resulting neutronic properties of the core. The accident analysis employed a model of the primary loop with the RELAP5 code. The model includes the primary pumps, shutdown pumps outlet valves, heat exchanger, fuel elements, and flow channels for both the six inner and twenty-four outer fuel elements. Evaluations were performed for the following accidents: (1) control rod withdrawal startup accident, (2) maximum reactivity insertion accident, (3) loss-of-flow accident resulting from loss of electrical power with an assumption of failure of shutdown cooling pumps, (4) loss-of-flow accident resulting from a primary pump seizure, and (5) loss-of-flow accident resulting from inadvertent throttling of a flow control valve. In addition, natural circulation cooling at low power operation was analyzed. The analysis shows that the conversion will not lead to significant changes in the safety analysis and the calculated minimum critical heat flux ratio and maximum clad temperature assure that there is adequate margin to fuel failure.

  10. Production Well Performance Enhancement using Sonication Technology

    Energy Technology Data Exchange (ETDEWEB)

    Adewumi, Michael A; Ityokumbul, M Thaddeus; Watson, Robert W; Eltohami, Eltohami; Farias, Mario; Heckman, Glenn; Houlihan, Brendan; Karoor, Samata Prakash; Miller, Bruce G; Mohammed, Nazia; Olanrewaju, Johnson; Ozdemir, Mine; Rejepov, Dautmamed; Sadegh, Abdallah A; Quammie, Kevin E; Zaghloul, Jose; Hughes, W Jack; Montgomery, Thomas C

    2005-12-31

    The objective of this project was to develop a sonic well performance enhancement technology that focused on near wellbore formation damage. In order to successfully achieve this objective, a three-year project was defined. The entire project was broken into four tasks. The overall objective of all this was to foster a better understanding of the mechanisms involved in sonic energy interactions with fluid flow in porous media and adapt such knowledge for field applications. The fours tasks are: • Laboratory studies • Mathematical modeling • Sonic tool design and development • Field demonstration The project was designed to be completed in three years; however, due to budget cuts, support was only provided for the first year, and hence the full objective of the project could not be accomplished. This report summarizes what was accomplished with the support provided by the US Department of Energy. Experiments performed focused on determining the inception of cavitation, studying thermal dissipation under cavitation conditions, investigating sonic energy interactions with glass beads and oil, and studying the effects of sonication on crude oil properties. Our findings show that the voltage threshold for onset of cavitation is independent of transducer-hydrophone separation distance. In addition, thermal dissipation under cavitation conditions contributed to the mobilization of deposited paraffins and waxes. Our preliminary laboratory experiments suggest that waxes are mobilized when the fluid temperature approaches 40°C. Experiments were conducted that provided insights into the interactions between sonic wave and the fluid contained in the porous media. Most of these studies were carried out in a slim-tube apparatus. A numerical model was developed for simulating the effect of sonication in the nearwellbore region. The numerical model developed was validated using a number of standard testbed problems. However, actual application of the model for scale

  11. NIST and NFI-TNO evaluations of automatic speaker recognition

    NARCIS (Netherlands)

    Leeuwen, D.A. van; Martin, A.F.; Przybocki, M.A.; Bouten, J.S.

    2006-01-01

    In the past years, several text-independent speaker recognition evaluation campaigns have taken place. This paper reports on results of the NIST evaluation of 2004 and the NFI-TNO forensic speaker recognition evaluation held in 2003, and reflects on the history of the evaluation campaigns. The effec

  12. NIST and NFI-TNO evaluations of automatic speaker recognition

    NARCIS (Netherlands)

    Leeuwen, D.A. van; Martin, A.F.; Przybocki, M.A.; Bouten, J.S.

    2005-01-01

    In the past years, several text-independent speaker recognition evaluation campaigns have taken place. This paper reports on results of the NIST evaluation of 2004 and the NFI-TNO forensic speaker recognition evaluation held in 2003, and re.ects on the history of the evaluation campaigns. The e.ects

  13. Certification of NIST Room Temperature Low-Energy and High-Energy Charpy Verification Specimens

    OpenAIRE

    Lucon, Enrico; McCowan, Chris N.; Santoyo, Ray L.

    2015-01-01

    The possibility for NIST to certify Charpy reference specimens for testing at room temperature (21 °C ± 1 °C) instead of −40 °C was investigated by performing 130 room-temperature tests from five low-energy and four high-energy lots of steel on the three master Charpy machines located in Boulder, CO. The statistical analyses performed show that in most cases the variability of results (i.e., the experimental scatter) is reduced when testing at room temperature. For eight out of the nine lots ...

  14. Mass Spectral Library, NIST '02 With Windows 2.0 Software

    Science.gov (United States)

    SRD 1A NIST/EPA/NIH Mass Spectral Library, NIST '02 With Windows 2.0 Software (PC database for purchase)   Available with full-featured NIST MS Search Program for Windows integrated tools, the NIST '98 is a fully evaluated collection of electron-ionization mass spectra. (147,198 Compounds with Spectra; 147,194 Chemical Structures; 174,948 Spectra )

  15. Tailoring NIST Security Controls for the Ground System: Selection and Implementation -- Recommendations for Information System Owners

    Science.gov (United States)

    Takamura, Eduardo; Mangum, Kevin

    2016-01-01

    . Certain protective measures for the general enterprise may not be as efficient within the ground segment. This is what the authors have concluded through observations and analysis of patterns identified from the various security assessments performed on NASA missions such as MAVEN, OSIRIS-REx, New Horizons and TESS, to name a few. The security audits confirmed that the framework for managing information system security developed by the National Institute of Standards and Technology (NIST) for the federal government, and adopted by NASA, is indeed effective. However, the selection of the technical, operational and management security controls offered by the NIST model - and how they are implemented - does not always fit the nature and the environment where the ground system operates in even though there is no apparent impact on mission success. The authors observed that unfit controls, that is, controls that are not necessarily applicable or sufficiently effective in protecting the mission systems, are often selected to facilitate compliance with security requirements and organizational expectations even if the selected controls offer minimum or non-existent protection. This paper identifies some of the standard security controls that can in fact protect the ground system, and which of them offer little or no benefit at all. It offers multiple scenarios from real security audits in which the controls are not effective without, of course, disclosing any sensitive information about the missions assessed. In addition to selection and implementation of controls, the paper also discusses potential impact of recent legislation such as the Federal Information Security Modernization Act (FISMA) of 2014 - aimed at the enterprise - on the ground system, and offers other recommendations to Information System Owners (ISOs).

  16. Certification of NIST Room Temperature Low-Energy and High-Energy Charpy Verification Specimens.

    Science.gov (United States)

    Lucon, Enrico; McCowan, Chris N; Santoyo, Ray L

    2015-01-01

    The possibility for NIST to certify Charpy reference specimens for testing at room temperature (21 °C ± 1 °C) instead of -40 °C was investigated by performing 130 room-temperature tests from five low-energy and four high-energy lots of steel on the three master Charpy machines located in Boulder, CO. The statistical analyses performed show that in most cases the variability of results (i.e., the experimental scatter) is reduced when testing at room temperature. For eight out of the nine lots considered, the observed variability was lower at 21 °C than at -40 °C. The results of this study will allow NIST to satisfy requests for room-temperature Charpy verification specimens that have been received from customers for several years: testing at 21 °C removes from the verification process the operator's skill in transferring the specimen in a timely fashion from the cooling bath to the impact position, and puts the focus back on the machine performance. For NIST, it also reduces the time and cost for certifying new verification lots. For one of the low-energy lots tested with a C-shaped hammer, we experienced two specimens jamming, which yielded unusually high values of absorbed energy. For both specimens, the signs of jamming were clearly visible. For all the low-energy lots investigated, jamming is slightly more likely to occur at 21 °C than at -40 °C, since at room temperature low-energy samples tend to remain in the test area after impact rather than exiting in the opposite direction of the pendulum swing. In the evaluation of a verification set, any jammed specimen should be removed from the analyses.

  17. Biometric systems technology, design and performance evaluation

    CERN Document Server

    Wayman, James; Maltoni, Davide

    2005-01-01

    A reference book for anyone involved in the design, management or implementation of biometric systems, and provides all the information needed to a build reliable system. It focuses on the four most widely used types of biometric technology - speech, fingerprint, iris and face recognition.

  18. TDCR and CIEMAT/NIST Liquid Scintillation Methods applied to the Radionuclide Metrology

    Science.gov (United States)

    da Cruz, P. A. L.; da Silva, C. J.; Iwahara, A.; Loureiro, J. S.; De Oliveira, A. E.; Tauhata, L.; Lopes, R. T.

    2016-07-01

    This work presents TDCR and CIEMAT/NIST methods of liquid scintillation implemented in National Institutes of Metrology for activity standardization of radionuclides, which decay by beta emission and electron capture. The computer codes used to calculate the detection efficiency take into account: decay schemes, beta decay theory, quenching parameter evaluation, Poisson statistic model and Monte Carlo simulation for photon and particle interactions in the detection system. Measurements were performed for pure emitters 3H, 14C, 99Tc and for 68Ge/68Ga which decay by electron capture and positron emission, with uncertainties smaller than 1% (k = 1).

  19. TDCR and CIEMAT/NIST liquid scintillation methods applied to the radionuclide metrology

    Energy Technology Data Exchange (ETDEWEB)

    Cruz, Paulo A.L. da; Silva, Carlos J. da; Iwahara, Akira; Loureiro, Jamir S.; Oliveira, Antonio E. de; Tauhata, Luiz, E-mail: palcruz@ird.gov.br [Instituto de Radioprotecao e Dosimetria (IRD/CNEN-RJ), Rio de Janeiro, RJ (Brazil); Lopes, Ricardo T. [Coordenacao de Programas de Pos-Graduacao de Engenharia (PEN/COPPE/UFRJ), Rio de Janeiro, RJ (Brazil). Programa de Engenharia Nuclear

    2015-07-01

    In this work are presented TDCR and CIEMAT/NIST methods of liquid scintillation implemented in National Institutes of Metrology for activity standardization of radionuclides which decay by beta emission and electron capture. The computer codes to calculate the detection efficiency take into account: decay schemes, beta decay theory, quenching parameter evaluation, Poisson statistic model and Monte Carlo simulation for photon and particle interactions in the detection system. Measurements were performed for {sup 3}H, {sup 14}C, {sup 99}Tc pure beta emitters in a large energy range, and {sup 68}Ge/{sup 68}Ga which decay by electron capture and positron emission, with uncertainties smaller than 1% (k = 1). (author)

  20. Accuracy and versatility of the NIST M48 coordinate measuring machine

    Science.gov (United States)

    Stoup, John R.; Doiron, Theodore D.

    2001-10-01

    The NIST Is continuing to develop the ability to perform accurate, traceable measurements on a wide range of artifacts using a very precise, error-mapped coordinate measuring machine (CMM). The NIST M48 CMM has promised accuracy and versatility for many ears. Recently, these promises have been realized in a reliable, reproducible way for many types of 1D, 2D, and 3D engineering metrology artifacts. The versatility of the machine has permitted state-of-the-art, accurate measurements of one meter step gages and precision ball plates as well as 500 micrometer holes and small precision parts made of aluminum or glass. To accomplish this wide range of measurements the CMM has required extensive assessment of machine positioning and straightness errors, probe response, machine motion control and speed, environmental stability, and measurement procedures. The CMM has been used as an absolute instrument and as a very complicated comparator. The data collection techniques have been designed to acquire statistical information on the machine and probe performance and to evaluate and remove any potential thermal drift in the machine coordinate system during operation. This paper will present the data collection and measurement techniques used by NIST to achieve excellent measurement results for gage blocks, long end standards, step gages, ring and plug gages, small holes, ball plates, and angular artifacts. Comparison data with existing independent primary measuring instruments will also be presented to show agreement and correlation with those historical methods. Current plans for incorporating the CMM into existing measurement services, such as plain ring gages, large plug gages, and long end standards, will be presented along with other proposed development of this CMM.

  1. Dry process fuel performance technology development

    Energy Technology Data Exchange (ETDEWEB)

    Kang, Kweon Ho; Kim, K. W.; Kim, B. K. (and others)

    2006-06-15

    The objective of the project is to establish the performance evaluation system of DUPIC fuel during the Phase III R and D. In order to fulfil this objectives, property model development of DUPIC fuel and irradiation test was carried out in Hanaro using the instrumented rig. Also, the analysis on the in-reactor behavior analysis of DUPIC fuel, out-pile test using simulated DUPIC fuel as well as performance and integrity assessment in a commercial reactor were performed during this Phase. The R and D results of the Phase III are summarized as follows: Fabrication process establishment of simulated DUPIC fuel for property measurement, Property model development for the DUPIC fuel, Performance evaluation of DUPIC fuel via irradiation test in Hanaro, Post irradiation examination of irradiated fuel and performance analysis, Development of DUPIC fuel performance code (KAOS)

  2. Establishment of the NIST flashing-light photometric unit

    Science.gov (United States)

    Ohno, Yoshihiro; Zong, Yuqin

    1997-09-01

    There is a need for accurate measurement of flashing lights for the proper maintenance of aircraft anticollision lights. A large variation in the measured intensities of anticollision lights has been a problem, and thus, NIST has undertaken the task to establish flashing-light photometric standards to provide calibration services in this area. A flashing-light photometric unit [lux second, (lx (DOT) s)] has been realized based on the NIST detector-based candela, using four standard photometers equipped with current integrators. Two different approaches have been taken to calibrate these standard photometers: one based on electrical calibration of the current integrator, and the other based on electronic pulsing of a steady-state photometric standard. The units realized using these two independent methods agreed to within 0.2%. The relative expanded uncertainty (k equals 2) of the standard photometers, in the measurement of the white xenon flash, is estimated to be 0.6%. The standard photometers are characterized for temporal response, linearity, and spectral responsivity, to be used for measurement of xenon flash sources of various waveforms and colors. Calibration services have been established at NIST for flashing-light photometers with white and red anticollision lights.

  3. HAPPY Team Entry to NIST OpenSAD Challenge: A Fusion of Short-Term Unsupervised and Segment i-Vector Based Speech Activity Detectors

    DEFF Research Database (Denmark)

    Kinnunen, Tomi; Sholokhov, Alexey; Khoury, Elie;

    2016-01-01

    Speech activity detection (SAD), the task of locating speech segments from a given recording, remains challenging under acoustically degraded conditions. In 2015, National Institute of Standards and Technology (NIST) coordinated OpenSAD bench-mark. We summarize “HAPPY” team effort to Open- SAD. S...

  4. Findings and Recommendations from the NIST Workshop on Alternative Fuels and Materials: Biocorrosion.

    Science.gov (United States)

    Mansfield, Elisabeth; Sowards, Jeffrey W; Crookes-Goodson, Wendy J

    2015-01-01

    In 2013, the Applied Chemicals and Materials Division of the National Institute of Standards and Technology (NIST) hosted a workshop to identify and prioritize research needs in the area of biocorrosion. Materials used to store and distribute alternative fuels have experienced an increase in corrosion due to the unique conditions caused by the presence of microbes and the chemistry of biofuels and biofuel precursors. Participants in this workshop, including experts from the microbiological, fuel, and materials communities, delved into the unique materials and chemical challenges that occur with production, transport, and storage of alternative fuels. Discussions focused on specific problems including: a) the changing composition of "drop-in" fuels and the impact of that composition on materials; b) the influence of microbial populations on corrosion and fuel quality; and c) state-of-the-art measurement technologies for monitoring material degradation and biofilm formation.

  5. Performance-Based Technology Selection Filter description report

    Energy Technology Data Exchange (ETDEWEB)

    O' Brien, M.C.; Morrison, J.L.; Morneau, R.A.; Rudin, M.J.; Richardson, J.G.

    1992-05-01

    A formal methodology has been developed for identifying technology gaps and assessing innovative or postulated technologies for inclusion in proposed Buried Waste Integrated Demonstration (BWID) remediation systems. Called the Performance-Based Technology Selection Filter, the methodology provides a formalized selection process where technologies and systems are rated and assessments made based on performance measures, and regulatory and technical requirements. The results are auditable, and can be validated with field data. This analysis methodology will be applied to the remedial action of transuranic contaminated waste pits and trenches buried at the Idaho National Engineering Laboratory (INEL).

  6. Technology sourcing over the technology life cycle: A study about the moderating effect of the technology life cycle on the relation between technology sourcing and firm performance

    NARCIS (Netherlands)

    Stolwijk, C.C.M.

    2012-01-01

    How do external and internal technology sourcing influence the innovative and market performance of firms over the technology life-cycle? The impact of technology sourcing on firm performance during different phases of the technology life cycle represents a gap in academic literature. Practically, i

  7. Technology sourcing over the technology life cycle: A study about the moderating effect of the technology life cycle on the relation between technology sourcing and firm performance

    NARCIS (Netherlands)

    Stolwijk, C.C.M.

    2012-01-01

    How do external and internal technology sourcing influence the innovative and market performance of firms over the technology life-cycle? The impact of technology sourcing on firm performance during different phases of the technology life cycle represents a gap in academic literature. Practically,

  8. Elucidate Innovation Performance of Technology-driven Mergers and Acquisitions

    Energy Technology Data Exchange (ETDEWEB)

    Huang, L.; Wang, K.; Yu, H.; Shang, L.; Mitkova, L.

    2016-07-01

    The importance and value of Mergers and Acquisitions (M&As) have increased with the expectancy to obtain key technology capabilities and rapid impact on innovation. This article develops an original analytical framework to elucidate the impact of the technology and product relatedness (similarity/complementarity) of the Technology-driven M&A’ partners on post-innovation performance. We present results drawing on a multiple case studies of Chinese High-Tech firms from three industries. (Author)

  9. High performance nano-composite technology development

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Whung Whoe; Rhee, C. K.; Kim, S. J.; Park, S. D. [KAERI, Taejon (Korea, Republic of); Kim, E. K.; Jung, S. Y.; Ryu, H. J. [KRICT, Taejon (Korea, Republic of); Hwang, S. S.; Kim, J. K.; Hong, S. M. [KIST, Taejon (Korea, Republic of); Chea, Y. B. [KIGAM, Taejon (Korea, Republic of); Choi, C. H.; Kim, S. D. [ATS, Taejon (Korea, Republic of); Cho, B. G.; Lee, S. H. [HGREC, Taejon (Korea, Republic of)

    1999-06-15

    The trend of new material development are being to carried out not only high performance but also environmental attraction. Especially nano composite material which enhances the functional properties of components, extending the component life resulting to reduced the wastes and environmental contamination, has a great effect on various industrial area. The application of nano composite, depends on the polymer matrix and filler materials, has various application from semiconductor to medical field. In spite of nano composite merits, nano composite study are confined to a few special materials as a lab, scale because a few technical difficulties are still on hold. Therefore, the purpose of this study establishes the systematical planning to carried out the next generation projects on order to compete with other countries and overcome the protective policy of advanced countries with grasping over sea's development trends and our present status. (author).

  10. Cost and Performance Assumptions for Modeling Electricity Generation Technologies

    Energy Technology Data Exchange (ETDEWEB)

    Tidball, Rick [ICF International, Fairfax, VA (United States); Bluestein, Joel [ICF International, Fairfax, VA (United States); Rodriguez, Nick [ICF International, Fairfax, VA (United States); Knoke, Stu [ICF International, Fairfax, VA (United States)

    2010-11-01

    The goal of this project was to compare and contrast utility scale power plant characteristics used in data sets that support energy market models. Characteristics include both technology cost and technology performance projections to the year 2050. Cost parameters include installed capital costs and operation and maintenance (O&M) costs. Performance parameters include plant size, heat rate, capacity factor or availability factor, and plant lifetime. Conventional, renewable, and emerging electricity generating technologies were considered. Six data sets, each associated with a different model, were selected. Two of the data sets represent modeled results, not direct model inputs. These two data sets include cost and performance improvements that result from increased deployment as well as resulting capacity factors estimated from particular model runs; other data sets represent model input data. For the technologies contained in each data set, the levelized cost of energy (LCOE) was also evaluated, according to published cost, performance, and fuel assumptions.

  11. Cost and Performance Assumptions for Modeling Electricity Generation Technologies

    Energy Technology Data Exchange (ETDEWEB)

    Tidball, R.; Bluestein, J.; Rodriguez, N.; Knoke, S.

    2010-11-01

    The goal of this project was to compare and contrast utility scale power plant characteristics used in data sets that support energy market models. Characteristics include both technology cost and technology performance projections to the year 2050. Cost parameters include installed capital costs and operation and maintenance (O&M) costs. Performance parameters include plant size, heat rate, capacity factor or availability factor, and plant lifetime. Conventional, renewable, and emerging electricity generating technologies were considered. Six data sets, each associated with a different model, were selected. Two of the data sets represent modeled results, not direct model inputs. These two data sets include cost and performance improvements that result from increased deployment as well as resulting capacity factors estimated from particular model runs; other data sets represent model input data. For the technologies contained in each data set, the levelized cost of energy (LCOE) was also evaluated, according to published cost, performance, and fuel assumptions.

  12. 76 FR 18166 - Technology Innovation Program Advisory Board

    Science.gov (United States)

    2011-04-01

    ... National Institute of Standards and Technology Technology Innovation Program Advisory Board AGENCY.... SUMMARY: The Technology Innovation Program Advisory Board, National Institute of Standards and Technology.... Cesaro's e-mail address is rene.cesaro@nist.gov . SUPPLEMENTARY INFORMATION: The Technology...

  13. NIST Ionization Chamber “A” Sample-Height Corrections

    OpenAIRE

    Fitzgerald, Ryan

    2012-01-01

    For over 30 years scientists in the NIST radioactivity group have been using their pressurized ionization chamber “A” (PIC “A”) to make measurements of radioactivity and radioactive half-lives. We now have evidence that some of those reported measurements were incorrect due to slippage of the source positioning ring over time. The temporal change in the holder caused an error in the source-height within the chamber, which was thought to be invariant. This unaccounted-for height change caused ...

  14. Stability improvements for the NIST Yb optical lattice clock

    Science.gov (United States)

    Fasano, R. J.; Schioppo, M.; McGrew, W. F.; Brown, R. C.; Hinkley, N.; Yoon, T. H.; Beloy, K.; Oates, C. W.; Ludlow, A. D.

    2016-05-01

    To reach the fundamental limit given by quantum projection noise, optical lattice clocks require advanced laser stabilization techniques. The NIST ytterbium clock has benefited from several generations of extremely high finesse optical cavities, with cavity linewidths below 1 kHz. Characterization of the cavity drift rate has allowed compensation to the mHz/s level, improving the medium-term stability of the cavity. Based on recent measurements using Ramsey spectroscopy with synchronous interrogation, we report a fractional instability σy(1s) thermal noise floor, which will improve our Dick-limited fractional instability at 1 s to below 10-16. Also at University of Colorado.

  15. Utility of NIST Whole-Genome Reference Materials for the Technical Validation of a Multigene Next-Generation Sequencing Test.

    Science.gov (United States)

    Shum, Bennett O V; Henner, Ilya; Belluoccio, Daniele; Hinchcliffe, Marcus J

    2017-07-01

    The sensitivity and specificity of next-generation sequencing laboratory developed tests (LDTs) are typically determined by an analyte-specific approach. Analyte-specific validations use disease-specific controls to assess an LDT's ability to detect known pathogenic variants. Alternatively, a methods-based approach can be used for LDT technical validations. Methods-focused validations do not use disease-specific controls but use benchmark reference DNA that contains known variants (benign, variants of unknown significance, and pathogenic) to assess variant calling accuracy of a next-generation sequencing workflow. Recently, four whole-genome reference materials (RMs) from the National Institute of Standards and Technology (NIST) were released to standardize methods-based validations of next-generation sequencing panels across laboratories. We provide a practical method for using NIST RMs to validate multigene panels. We analyzed the utility of RMs in validating a novel newborn screening test that targets 70 genes, called NEO1. Despite the NIST RM variant truth set originating from multiple sequencing platforms, replicates, and library types, we discovered a 5.2% false-negative variant detection rate in the RM truth set genes that were assessed in our validation. We developed a strategy using complementary non-RM controls to demonstrate 99.6% sensitivity of the NEO1 test in detecting variants. Our findings have implications for laboratories or proficiency testing organizations using whole-genome NIST RMs for testing. Copyright © 2017 American Society for Investigative Pathology and the Association for Molecular Pathology. Published by Elsevier Inc. All rights reserved.

  16. Load Disaggregation Technologies: Real World and Laboratory Performance

    Energy Technology Data Exchange (ETDEWEB)

    Mayhorn, Ebony T.; Sullivan, Greg P.; Petersen, Joseph M.; Butner, Ryan S.; Johnson, Erica M.

    2016-09-28

    Low cost interval metering and communication technology improvements over the past ten years have enabled the maturity of load disaggregation (or non-intrusive load monitoring) technologies to better estimate and report energy consumption of individual end-use loads. With the appropriate performance characteristics, these technologies have the potential to enable many utility and customer facing applications such as billing transparency, itemized demand and energy consumption, appliance diagnostics, commissioning, energy efficiency savings verification, load shape research, and demand response measurement. However, there has been much skepticism concerning the ability of load disaggregation products to accurately identify and estimate energy consumption of end-uses; which has hindered wide-spread market adoption. A contributing factor is that common test methods and metrics are not available to evaluate performance without having to perform large scale field demonstrations and pilots, which can be costly when developing such products. Without common and cost-effective methods of evaluation, more developed disaggregation technologies will continue to be slow to market and potential users will remain uncertain about their capabilities. This paper reviews recent field studies and laboratory tests of disaggregation technologies. Several factors are identified that are important to consider in test protocols, so that the results reflect real world performance. Potential metrics are examined to highlight their effectiveness in quantifying disaggregation performance. This analysis is then used to suggest performance metrics that are meaningful and of value to potential users and that will enable researchers/developers to identify beneficial ways to improve their technologies.

  17. Effect of information and communication technology on nursing performance.

    Science.gov (United States)

    Fujino, Yuriko; Kawamoto, Rieko

    2013-05-01

    The aim of this study was to investigate the influence of information and communication technology use and skills on nursing performance. Questionnaires were prepared relating to using the technology, practical skills in utilizing information, the Six-Dimension Scale of Nursing Performance, and demographics. In all, 556 nurses took part (response rate, 72.6%). A two-way analysis of variance was used to determine the influence of years of nursing experience on the relationship between nursing performance and information and communication technology use. The results showed that the group possessing high technological skills had greater nursing ability than the group with low skills; the level of nursing performance improved with years of experience in the former group, but not in the latter group. Regarding information and communication technology use, the results showed that nursing performance improved among participants who used computers for sending and receiving e-mails, but it decreased for those who used cell phones for e-mail. The results suggest that nursing performance may be negatively affected if information and communication technology are inappropriately used. Informatics education should therefore be provided for all nurses, and it should include information use relating to cell phones and computers.

  18. Assessing the Role of Technology Adoption in China's Growth Performance

    DEFF Research Database (Denmark)

    Wirz, Nadja

    China has experienced a period of tremendous economic growth in recent years. In an attempt to explain this development, several existing growth-accounting studies reveal that impressively high rates of productivity growth have been at the heart of China's performance. This study investigates...... to what extent these productivity increases can be explained by technology-adoption theory. In less developed countries, the key element behind technological progress is technology adoption, the process of copying technological knowledge invented throughout the world. To uncover a measure of China...

  19. Performance Comparison on Java Technologies - A Practical Approach

    Directory of Open Access Journals (Sweden)

    Priyanka Dutta

    2013-05-01

    Full Text Available Performance responsiveness and scalability is a make-or-break quality for software. Nearly everyone runs into performance problems at one time or another. This paper discusses about performance issues faced during one of the project implemented in java technologies. The challenges faced during the life cycle of the project and the mitigation actions performed. It compares 3 java technologies and shows how improvements are made through statistical analysis in response time of the application. The paper concludes with result analysis.

  20. Experimental Progress on the NIST ^27Al^+ Optical Clock

    Science.gov (United States)

    Chou, Chin-Wen; Hume, David B.; Koelemeij, Jeroen C. J.; Rosenband, Till; Bergquist, James C.; Wineland, Dave J.

    2009-05-01

    A recent measurement of the frequency ratio between single-ion optical clocks based on ^27Al^+ and ^199Hg^+ at NIST showed a combined statistical and systematic uncertainty of 5.2 x 10-17[1]. Here we report progress on improving both the accuracy and stability of the ^27Al^+ optical clock. We have developed a new trap and laser systems that enable the use of ^25Mg^+ for sympathetic cooling and clock-state detection of ^27Al^+. These developments should reduce time-dilation shifts caused by harmonic motion of the ions and thus lower the dominant systematic uncertainty below 10-17. In the new clock apparatus we have demonstrated spectroscopy of the ^27Al^+ ^1S0 to ^3P0 transition with a quality factor of Q = 3.5 x 10^14 and simultaneously a contrast approaching unity. In addition, we have developed techniques for the sympathetic laser cooling and quantum logic spectroscopy of multiple aluminum ions with the goal of further improving measurement stability [2]. *supported by ONR and NIST [1] T. Rosenband et al., Science 319, 1808 (2008) [2] D. B. Hume et al., Phys. Rev. Lett. 99, 120502 (2007)

  1. Calibration of the borated ion chamber at NIST reactor thermal column.

    Science.gov (United States)

    Wang, Z; Hertel, N E; Lennox, A

    2007-01-01

    In boron neutron capture therapy and boron neutron capture enhanced fast neutron therapy, the absorbed dose of tissue due to the boron neutron capture reaction is difficult to measure directly. This dose can be computed from the measured thermal neutron fluence rate and the (10)B concentration at the site of interest. A borated tissue-equivalent (TE) ion chamber can be used to directly measure the boron dose in a phantom under irradiation by a neutron beam. Fermilab has two Exradin 0.5 cm(3) Spokas thimble TE ion chambers, one loaded with boron, available for such measurements. At the Fermilab Neutron Therapy Facility, these ion chambers are generally used with air as the filling gas. Since alpha particles and lithium ions from the (10)B(n,alpha)(7)Li reactions have very short ranges in air, the Bragg-Gray principle may not be satisfied for the borated TE ion chamber. A calibration method is described in this paper for the determination of boron capture dose using paired ion chambers. The two TE ion chambers were calibrated in the thermal column of the National Institute of Standards and Technology (NIST) research reactor. The borated TE ion chamber is loaded with 1,000 ppm of natural boron (184 ppm of (10)B). The NIST thermal column has a cadmium ratio of greater than 400 as determined by gold activation. The thermal neutron fluence rate during the calibration was determined using a NIST fission chamber to an accuracy of 5.1%. The chambers were calibrated at two different thermal neutron fluence rates: 5.11 x 10(6) and 4.46 x 10(7)n cm(-2) s(-1). The non-borated ion chamber reading was used to subtract collected charge not due to boron neutron capture reactions. An optically thick lithium slab was used to attenuate the thermal neutrons from the neutron beam port so the responses of the chambers could be corrected for fast neutrons and gamma rays in the beam. The calibration factor of the borated ion chamber was determined to be 1.83 x 10(9) +/- 5.5% (+/- 1sigma) n

  2. Contemporary performativities and the imperative of participation in digital technologies

    Directory of Open Access Journals (Sweden)

    Gisela Cánepa Koch

    2015-01-01

    Full Text Available In a processual perspective of social life, technology works within discursive and action frames that make it possible. these frames provide meaning and legitimate technology but are also produced through technology and its uses. In other words, actions frames of an era are constitutive of and constituted by technology. this perspective follows a performative approach on digital technologies which allow the authors to problematize them in terms of their actors, discourses, and practices. On this way, the authors go beyond views that tend to dichotomize in order to understand issues of representation and power relations. Yet, what happens when actor’s performances and the performative force of their practices are no longer an aspect of their dynamics and configuration, but rather a normative force? In other words, what is at stake when actors and their performances are organized by performance as a mandate, that is, as a regime of truth? In a context where the principles of efficiency, effectiveness and efficacy are a mandate, there is a need to ask this sort of question, particularly in relation to the paradoxes it poses to participatory regimes that respond to the demands of neoliberal governmentality.

  3. The effect of information technology on hospital performance.

    Science.gov (United States)

    Williams, Cynthia; Asi, Yara; Raffenaud, Amanda; Bagwell, Matt; Zeini, Ibrahim

    2016-12-01

    While healthcare entities have integrated various forms of health information technology (HIT) into their systems due to claims of increased quality and decreased costs, as well as various incentives, there is little available information about which applications of HIT are actually the most beneficial and efficient. In this study, we aim to assist administrators in understanding the characteristics of top performing hospitals. We utilized data from the Health Information and Management Systems Society and the Center for Medicare and Medicaid to assess 1039 hospitals. Inputs considered were full time equivalents, hospital size, and technology inputs. Technology inputs included personal health records (PHR), electronic medical records (EMRs), computerized physician order entry systems (CPOEs), and electronic access to diagnostic results. Output variables were measures of quality, hospital readmission and mortality rate. The analysis was conducted in a two-stage methodology: Data Envelopment Analysis (DEA) and Automatic Interaction Detector Analysis (AID), decision tree regression (DTreg). Overall, we found that electronic access to diagnostic results systems was the most influential technological characteristics; however organizational characteristics were more important than technological inputs. Hospitals that had the highest levels of quality indicated no excess in the use of technology input, averaging one use of a technology component. This study indicates that prudent consideration of organizational characteristics and technology is needed before investing in innovative programs.

  4. Acting with Technology: Rehearsing for Mixed-Media Live Performances

    DEFF Research Database (Denmark)

    Barkhuus, Louise; Rossitto, Chiara

    2016-01-01

    Digital technologies provide theater with new possibilities for combining traditional stage-based performances with interactive artifacts, for streaming remote parallel performances and for other device facilitated audience interaction. Compared to traditional theater, mixed-media performances...... require a different type of engagement from the actors and rehearsing is challenging, as it can be impossible to rehearse with all the functional technology and interaction. Here, we report experiences from a case study of two mixed-media performances; we studied the rehearsal practices of two actors who...... were performing in two different plays. We describe how the actors practiced presence during rehearsal in a play where they would be geographically remote, and we describe the challenges of rehearsing with several remote and interactive elements. Our study informs the broader aims of interactive...

  5. Robotic Mobile System's Performance-Based MIMO-OFDM Technology

    Directory of Open Access Journals (Sweden)

    Omar Alani

    2009-10-01

    Full Text Available In this paper, a predistortion neural network (PDNN architecture has been imposed to the Sniffer Mobile Robot (SNFRbot that is based on spatial multiplexed wireless Orthogonal Frequency Division Multiplexing (OFDM transmission technology. This proposal is used to improve the system performance by combating one of the main drawbacks that is encountered by OFDM technology; Peak-to-Average Power Ratio (PAPR. Simulation results show that using PDNN resulted in better PAPR performance than the previously published work that is based on linear coding, such as Low Density Parity Check (LDPC codes and turbo encoding whether using flat fading channel or a Doppler spread channel.

  6. 76 FR 22673 - Technology Innovation Program Advisory Board

    Science.gov (United States)

    2011-04-22

    ... National Institute of Standards and Technology Technology Innovation Program Advisory Board AGENCY... notice in the Federal Register announcing an open meeting for the Technology Innovation Program Advisory... rene.cesaro@nist.gov . SUPPLEMENTARY INFORMATION: The Technology Innovation Program (TIP)...

  7. Comment on "first accuracy evaluation of NIST-F2"

    CERN Document Server

    Gibble, Kurt

    2015-01-01

    We discuss the treatment of the systematic frequency shifts due to microwave lensing and distributed cavity phase in "First accuracy evaluation of NIST-F2" 2014 Metrologia 51 174-182. We explain that the microwave lensing frequency shift is generally non-zero and finite in the limit of no applied microwave field. This systematic error was incorrectly treated and we find that it contributes a significant frequency offset. Accounting for this shift implies that the measured microwave amplitude dependence (e.g due to microwave leakage) is comparable to the total reported inaccuracy. We also discuss the importance of vertically aligning the fountain perpendicular to the axis of the cavity feeds, when the cavity has only two independent feeds. Finally, we note that background gas collisions have a different behavior for cold clock atoms than for clock atoms at room-temperature, and therefore room temperature measurements do not directly apply to laser-cooled clocks.

  8. Cold Neutron Research Facility begins operating at NIST

    Energy Technology Data Exchange (ETDEWEB)

    Zeman, E.J.

    1991-09-01

    Steady-state neutron beams are generally produced by fission in a nuclear reactor, whereas pulsed beams come from spallation neutron sources. Beams from a reactor have a distribution of wavelengths that is roughly Maxwellian, with a peak wavelength that depends on the temperature of the moderator that surrounds the fuel. Cold neutrons can be selected from the low-energy tail of the distribution, but the flux drops as 1/{lambda}{sup 4}. However, by shifting the whole spectrum to longer wavelengths one can dramatically increase the cold neutron flux. This is achieved by replacing part of the core moderator with a cold moderator, or cold source,' such as liquid deuterium (at about 30 K) or D{sub 2}O ice (at about 40 K). Neutrons lose energy to the moderator through collisions, producing a shifted spectrum from which one can select lower-energy neutrons with a roughly ten-fold improvement in the flux. Neutrons exhibit optical behavior such as refraction and total reflection. Thus one can use neutron guides - analogous to optical fibers - to conduct intense beams of neutrons from the reactor into a large experimental hall, dubbed a guide hall,' where background radiation is low. The Cold Neutron Research Facility was finally funded in 1987 and opened its doors this past June. CNRF is located at the 20-MW NIST research reactor, which began continuous operation in 1969. With some foresight, the designers of the original reactor allowed space for the addition of a cryogenic moderator, which is only now being exploited. NIST will develop 10 experimental stations for use by the research science community. Additional help in financing the facility comes from participating research teams made up of groups from industry, academe and government.

  9. The NIST Real-Time Control System (RCS): A Reference Model Architecture for Computational Intelligence

    Science.gov (United States)

    Albus, James S.

    1996-01-01

    The Real-time Control System (RCS) developed at NIST and elsewhere over the past two decades defines a reference model architecture for design and analysis of complex intelligent control systems. The RCS architecture consists of a hierarchically layered set of functional processing modules connected by a network of communication pathways. The primary distinguishing feature of the layers is the bandwidth of the control loops. The characteristic bandwidth of each level is determined by the spatial and temporal integration window of filters, the temporal frequency of signals and events, the spatial frequency of patterns, and the planning horizon and granularity of the planners that operate at each level. At each level, tasks are decomposed into sequential subtasks, to be performed by cooperating sets of subordinate agents. At each level, signals from sensors are filtered and correlated with spatial and temporal features that are relevant to the control function being implemented at that level.

  10. Progress and Challenges in High Performance Computer Technology

    Institute of Scientific and Technical Information of China (English)

    Xue-Jun Yang; Yong Dou; Qing-Feng Hu

    2006-01-01

    High performance computers provide strategic computing power in the construction of national economy and defense, and become one of symbols of the country's overall strength. Over 30 years, with the supports of governments, the technology of high performance computers is in the process of rapid development, during which the computing performance increases nearly 3 million times and the processors number expands over 10 hundred thousands times. To solve the critical issues related with parallel efficiency and scalability, scientific researchers pursued extensive theoretical studies and technical innovations. The paper briefly looks back the course of building high performance computer systems both at home and abroad,and summarizes the significant breakthroughs of international high performance computer technology. We also overview the technology progress of China in the area of parallel computer architecture, parallel operating system and resource management,parallel compiler and performance optimization, environment for parallel programming and network computing. Finally, we examine the challenging issues, "memory wall", system scalability and "power wall", and discuss the issues of high productivity computers, which is the trend in building next generation high performance computers.

  11. Distributed utility technology cost, performance, and environmental characteristics

    Energy Technology Data Exchange (ETDEWEB)

    Wan, Y; Adelman, S

    1995-06-01

    Distributed Utility (DU) is an emerging concept in which modular generation and storage technologies sited near customer loads in distribution systems and specifically targeted demand-side management programs are used to supplement conventional central station generation plants to meet customer energy service needs. Research has shown that implementation of the DU concept could provide substantial benefits to utilities. This report summarizes the cost, performance, and environmental and siting characteristics of existing and emerging modular generation and storage technologies that are applicable under the DU concept. It is intended to be a practical reference guide for utility planners and engineers seeking information on DU technology options. This work was funded by the Office of Utility Technologies of the US Department of Energy.

  12. Evaluation of the sensitivity of the 'Wiley registry of tandem mass spectral data, MSforID' with MS/MS data of the 'NIST/NIH/EPA mass spectral library'.

    Science.gov (United States)

    Oberacher, Herbert; Whitley, Graeme; Berger, Bernd

    2013-04-01

    Tandem mass spectral libraries are versatile tools for small molecular identification finding application in forensic science, doping control, drug monitoring, food and environmental analysis, as well as metabolomics. Two important libraries are the 'Wiley Registry of Tandem Mass Spectral Data, MSforID' (Wiley Registry MSMS) and the collection of MS/MS spectra part of the 2011 edition of the 'NIST/NIH/EPA Mass Spectral Library' (NIST 11 MSMS). Herein, the sensitivity and robustness of the Wiley Registry MSMS were evaluated using spectra extracted from the NIST 11 MSMS library. The sample set was found to be heterogeneous in terms of mass spectral resolution, type of CID, as well as applied collision energies. Nevertheless, sensitive compound identification with a true positive identification rate ≥95% was possible using either the MSforID Search program or the NIST MS Search program 2.0g for matching. To rate the performance of the Wiley Registry MSMS, cross-validation experiments were repeated using subcollections of NIST 11 MSMS as reference library and spectra extracted from the Wiley Registry MSMS as positive controls. Unexpectedly, with both search algorithms tested, correct results were obtained in less than 88% of cases. We examined possible causes for the results of the cross validation study. The large number of precursor ions represented by a single tandem mass spectrum only was identified as the basic cause for the comparably lower sensitivity of the NIST library.

  13. Improving network service performance and reliability via links trunking technologies

    Institute of Scientific and Technical Information of China (English)

    GUO Hui; WANG Yun-peng; WANG Zhi-guang; ZHOU Jing-li

    2006-01-01

    With the increase ofhigh-speed network backbones, the performance of server's network interface gradually becomes a pivotal factor. This study provides a method called Ethernet Links Trunking (ELT) technology for achieving efficient connectivity between backbones and servers, which provides higher bandwidth and availability of server network interface. The overview of the ELT technology and the results of performance experiment are presented in this paper. Findings showed that the network bandwidth can be scaled by multiple ELT technologies so that more reliable network connectivity can be guaranteed. Some crucial techniques such as Adapter Load Balancing (ALB) and Adapter Fault Tolerance (AFT) are presented in this paper. Experimental results showed that parallel channels of Fast Ethernet are both necessary and sufficient for supporting the data rates of multiple concurrent file transfers on file server.

  14. Enabling Detailed Energy Analyses via the Technology Performance Exchange: Preprint

    Energy Technology Data Exchange (ETDEWEB)

    Studer, D.; Fleming, K.; Lee, E.; Livingood, W.

    2014-08-01

    One of the key tenets to increasing adoption of energy efficiency solutions in the built environment is improving confidence in energy performance. Current industry practices make extensive use of predictive modeling, often via the use of sophisticated hourly or sub-hourly energy simulation programs, to account for site-specific parameters (e.g., climate zone, hours of operation, and space type) and arrive at a performance estimate. While such methods are highly precise, they invariably provide less than ideal accuracy due to a lack of high-quality, foundational energy performance input data. The Technology Performance Exchange was constructed to allow the transparent sharing of foundational, product-specific energy performance data, and leverages significant, external engineering efforts and a modular architecture to efficiently identify and codify the minimum information necessary to accurately predict product energy performance. This strongly-typed database resource represents a novel solution to a difficult and established problem. One of the most exciting benefits is the way in which the Technology Performance Exchange's application programming interface has been leveraged to integrate contributed foundational data into the Building Component Library. Via a series of scripts, data is automatically translated and parsed into the Building Component Library in a format that is immediately usable to the energy modeling community. This paper (1) presents a high-level overview of the project drivers and the structure of the Technology Performance Exchange; (2) offers a detailed examination of how technologies are incorporated and translated into powerful energy modeling code snippets; and (3) examines several benefits of this robust workflow.

  15. A Cross-Cultural Investigation of Human Performance Technology Interventions

    Science.gov (United States)

    Vadivelu, Ramaswamy N.

    2010-01-01

    Human Performance Technology (HPT) is a field of practice that has evolved from advancements in organizational development, instructional design, strategic human resource management and cognitive psychology. As globalization and trends like outsourcing and off-shoring start to dominate the way organizations grow, HPT practitioners are managing the…

  16. Synthesizing Soft Systems Methodology and Human Performance Technology

    Science.gov (United States)

    Scott, Glen; Winiecki, Donald J.

    2012-01-01

    Human performance technology (HPT), like other concepts, models, and frameworks that we use to describe the world in which we live and the way we organize ourselves to accomplish valuable activities, is built from paradigms that were fresh and relevant at the time it was conceived and from the fields of study from which it grew. However, when the…

  17. Application of Data Collection Techniques by Human Performance Technology Practitioners

    Science.gov (United States)

    Duan, Minjing

    2011-01-01

    By content-analyzing 22 published cases from a variety of professional and academic books and journals, this study examines the status quo of human performance technology (HPT) practitioners' application of five major data collection techniques in their everyday work: questionnaire, interview, focus group, observation, and document collection. The…

  18. Revisit of Energy Use and Technologies of High Performance Buildings

    Energy Technology Data Exchange (ETDEWEB)

    Li, Cheng; Hong, Tianzhen

    2014-03-30

    Energy consumed by buildings accounts for one third of the world?s total primary energy use. Associated with the conscious of energy savings in buildings, High Performance Buildings (HPBs) has surged across the world, with wide promotion and adoption of various performance rating and certification systems. It is valuable to look into the actual energy performance of HPBs and to understand their influencing factors. To shed some light on this topic, this paper conducted a series of portfolio analysis based on a database of 51 high performance office buildings across the world. Analyses showed that the actual site Energy Use Intensity (EUI) of the 51 buildings varied by a factor of up to 11, indicating a large scale of variation of the actual energy performance of the current HPBs. Further analysis of the correlation between EUI and climate elucidated ubiquitous phenomenon of EUI scatter throughout all climate zones, implying that the weather is not a decisive factor, although important, for the actual energy consumption of an individual building. On the building size via EUI, analysis disclosed that smaller buildings have a tendency to achieving lower energy use. Even so, the correlation is not absolute since some large buildings demonstrated low energy use while some small buildings performed opposite. Concerning the technologies, statistics indicated that the application of some technologies had correlations with some specific building size and climate characteristic. However, it was still hard to pinpoint a set of technologies which was directly correlative with a group of low EUI buildings. It is concluded that no a single factor essentially determines the actual energy performance of HPBs. To deliver energy-efficient buildings, an integrated design taking account of climate, technology, occupant behavior as well as operation and maintenance should be implemented.

  19. Effect of technological parameters on optical performance of fiber coupler

    Institute of Scientific and Technical Information of China (English)

    SHUAI Ci-jun; DUAN Ji-an; ZHONG Jue

    2007-01-01

    To find out the influence of technological parameters on optical performance of fused optical fiber device, the fiber coupler was served as subject investigated by using the fused biconical taper machining as experimental setup. Fused fiber coupler's optical performances such as insertion loss, excess loss, directivity and uniformity were tested with the optical test system that was constituted of tunable laser and optical spectrum analyzer. Especially the relationship between optical performance and drawing speed was investigated. The experimental results show that the optical performance is closely related to process conditions. At fused temperature of 1 200℃, there exists a drawing speed of 150 μm/s, which makes the device's performance optimum. Out of this speed region, the optical performance drops quickly. At drawing speed of 200 tm/s, the excess loss is relatively small when the fused temperature is above 1 200℃. So the technological parameters have close relationship with optical performance of the coupler, and the good performance coupler can't get until the drawing speed and fused temperature match accurately.

  20. Shifting technology from the universities to a high performance business

    Directory of Open Access Journals (Sweden)

    Lazarus Neely

    2009-12-01

    Full Text Available The first aim of this study is to identify the external and internal factors that have shaped the performance of Technology-Based Start-up Firms (TBSF in the US. The second goal is to compare this study with a previous study conducted in Brazil, to identify incubator best practices that may increase the performance of incubated firms. The US study focuses on graduated firms from the Indiana University incubator located in Indianapolis. The main partners of three technology-based start-up firms were interviewed, based on a semi-structured questionnaire. The outcomes from our analysis indicated that the TBSF have both internal and external factors that affect their performance. The analysis showed that as an external factor, the incubator’s connection with university was helpful for obtaining capital. As internal factors, the technical expertise and entrepreneur managerial competence was identified as fundamental factors for TBSF success. The analysis also indicated that some of those factors are different between Brazilian firms and American firms. In Brazil, the management training offered by the incubator is considered very important for the performance of the incubated firms. This was not confirmed in the American study. Knowing what affects the performance of technology-based start-up firms will help incubators offer improved, and more comprehensive services enabling firms to develop and expand.

  1. Relative performance analysis of IR FPA technologies from the perspective of system level performance

    Science.gov (United States)

    Haran, Terence L.; James, J. Christopher; Cincotta, Tomas E.

    2017-08-01

    The majority of high performance infrared systems today utilize FPAs composed of intrinsic direct bandgap semiconductor photon detectors such as MCT or InSb. Quantum well detector technologies such as QWIPs, QDIPs, and SLS photodetectors are potentially lower cost alternatives to MCT and InSb, but the relative performance of these technologies has not been sufficiently high to allow widespread adoption outside of a handful of applications. While detectors are often evaluated using figures of merit such as NETD or D∗, these metrics, which include many underlying aspects such as spectral quantum efficiency, dark current, well size, MTF, and array response uniformity, may be far removed from the performance metrics used to judge performance of a system in an operationally relevant scenario. True comparisons of performance for various detector technologies from the perspective of end-to-end system performance have rarely been conducted, especially considering the rapid progress of the newer quantum well technologies. System level models such as the US Army's Night Vision Integrated Performance Model (NV-IPM) can calculate image contrast and spatial frequency content using data from the target/background, intervening atmosphere, and system components. This paper includes results from a performance parameter sensitivity analysis using NV-IPM to determine the relative importance of various FPA performance parameters to the overall performance of a long range imaging system. Parameters included are: QE, dark current density, quantum well capacity, downstream readout noise, well fill, image frame rate, frame averaging, and residual fixed pattern noise. The state-of-the art for XBn, QWIP, and SLS detector technologies operating in the MWIR and LWIR bands will be surveyed to assess performance of quantum structures compared to MCT and InSb. The intent is to provide a comprehensive assessment of quantum detector performance and to identify areas where increased research

  2. High-performance silicon photonics technology for telecommunications applications.

    Science.gov (United States)

    Yamada, Koji; Tsuchizawa, Tai; Nishi, Hidetaka; Kou, Rai; Hiraki, Tatsurou; Takeda, Kotaro; Fukuda, Hiroshi; Ishikawa, Yasuhiko; Wada, Kazumi; Yamamoto, Tsuyoshi

    2014-04-01

    By way of a brief review of Si photonics technology, we show that significant improvements in device performance are necessary for practical telecommunications applications. In order to improve device performance in Si photonics, we have developed a Si-Ge-silica monolithic integration platform, on which compact Si-Ge-based modulators/detectors and silica-based high-performance wavelength filters are monolithically integrated. The platform features low-temperature silica film deposition, which cannot damage Si-Ge-based active devices. Using this platform, we have developed various integrated photonic devices for broadband telecommunications applications.

  3. Anaerobic digestion: technology transfer, engineering performance and efficiency

    Energy Technology Data Exchange (ETDEWEB)

    Cecchi, F.; Traverso, P.G.; Ganapini, W.

    1987-10-01

    The chemical, technological and process aspects of anaerobic digestion process are analysed on the basis of the Authors' experience and of scientific literature. Emphasis is put on the necessity of integrating the presentation of experimental data and some suggestions are common to those of the EEC to improve the knowledge of the process. An analysis of the types of full-scale digesters used in Europe and in the USA is supplied and suggestions are proposed on the future development of anaerobic technology with the aim of improving performance and efficiency.

  4. Toward high-performance digital logic technology with carbon nanotubes.

    Science.gov (United States)

    Tulevski, George S; Franklin, Aaron D; Frank, David; Lobez, Jose M; Cao, Qing; Park, Hongsik; Afzali, Ali; Han, Shu-Jen; Hannon, James B; Haensch, Wilfried

    2014-09-23

    The slow-down in traditional silicon complementary metal-oxide-semiconductor (CMOS) scaling (Moore's law) has created an opportunity for a disruptive innovation to bring the semiconductor industry into a postsilicon era. Due to their ultrathin body and ballistic transport, carbon nanotubes (CNTs) have the intrinsic transport and scaling properties to usher in this new era. The remaining challenges are largely materials-related and include obtaining purity levels suitable for logic technology, placement of CNTs at very tight (∼5 nm) pitch to allow for density scaling and source/drain contact scaling. This review examines the potential performance advantages of a CNT-based computing technology, outlines the remaining challenges, and describes the recent progress on these fronts. Although overcoming these issues will be challenging and will require a large, sustained effort from both industry and academia, the recent progress in the field is a cause for optimism that these materials can have an impact on future technologies.

  5. Editorial: Technology for higher education, adult learning and human performance

    Directory of Open Access Journals (Sweden)

    Minhong Wang

    2013-09-01

    Full Text Available This special issue is dedicated to technology-enabled approaches for improving higher education, adult learning, and human performance. Improvement of learning and human development for sustainable development has been recognized as a key strategy for individuals, institutions, and organizations to strengthen their competitive advantages. It becomes crucial to help adult learners and knowledge workers to improve their self-directed and life-long learning capabilities. Meanwhile, advances in technology have been increasingly enabling and facilitating learning and knowledge-related initiatives.. They have largely extended learning opportunities through the provision of resource-rich and learner-centered environment, computer-based learning support, and expanded social interactions and networks. Papers in this special issue are representative of ongoing research on integration of technology with learning for innovation and sustainable development in higher education institutions and organizational and community environments.

  6. Assessing the performance of health technology assessment organizations: a framework.

    Science.gov (United States)

    Lafortune, Louise; Farand, Lambert; Mondou, Isabelle; Sicotte, Claude; Battista, Renaldo

    2008-01-01

    In light of growing demands for public accountability, the broadening scope of health technology assessment organizations (HTAOs) activities and their increasing role in decision-making underscore the importance for them to demonstrate their performance. Based on Parson's social action theory, we propose a conceptual model that includes four functions an organization needs to balance to perform well: (i) goal attainment, (ii) production, (iii) adaptation to the environment, and (iv) culture and values maintenance. From a review of the HTA literature, we identify specific dimensions pertaining to the four functions and show how they relate to performance. We compare our model with evaluations reported in the scientific and gray literature to confirm its capacity to accommodate various evaluation designs, contexts of evaluation, and organizational models and perspectives. Our findings reveal the dimensions of performance most often assessed and other important ones that, hitherto, remain unexplored. The model provides a flexible and theoretically grounded tool to assess the performance of HTAOs.

  7. Performance Management Practices, Information and Communication Technology (ICT) Adoption and Managed Performance

    Science.gov (United States)

    Kagaari, James R. K.; Munene, John C.; Ntayi, Joseph Mpeera

    2010-01-01

    Purpose: The purpose of this paper is to demonstrate the need for managers of public universities to pay attention to performance management practices and information communication technology (ICT) adoption in order to achieve successful managed performance. Design/methodology/approach: Using a disproportionate stratified purposive approach, a…

  8. Comparison of quartz standards for X-ray diffraction analysis: HSE A9950 (Sikron F600) and NIST SRM 1878.

    Science.gov (United States)

    Chisholm, Jim

    2005-06-01

    A further comparison of the Health and Safety Executive (HSE) standard quartz, A9950 (Sikron F600), and the National Institute of Standards and Technology (NIST) Standard Reference Material (SRM) 1878, standard respirable alpha-quartz, has been carried out for the four principal diffraction peaks. In the earlier comparison by Jeyaratnam and Nagar (1993, Ann Occup Hyg; 37: 167-79), the standards were both treated in ways which might change the particle size distribution and therefore the proportion of crystalline quartz. The two standards have now been compared in the most direct way possible with the minimum of sample treatment. There are no significant differences in the diffraction peak positions for the two standards. Nor do the peak area intensities differ significantly. The peak height intensities are consistently and significantly higher for Sikron F600 than for NIST SRM 1878. The particle size broadening of the diffraction peaks is evidently greater for NIST 1878, whose mass median diameter is quoted as 1.6 microm against 2.6 microm for Sikron F600. Taking the certified reference value for SRM 1878 as 95.5 +/- 1.1% crystalline quartz, the HSE standard A9950 (Sikron F600) contains 96.3 +/- 1.4% crystalline quartz based on a comparison of peak area intensities. On the same basis but using peak height intensities, the nominal crystalline quartz content of A9950 (Sikron F600) is 101.2 +/- 1.8%. Results obtained by comparison of quartz standards may not be generally applicable because of the effect of sample treatment on particle size and crystalline quartz content.

  9. Performance-enhancing technologies and moral responsibility in the military.

    Science.gov (United States)

    Wolfendale, Jessica

    2008-02-01

    New scientific advances have created previously unheard of possibilities for enhancing combatants' performance. Future war fighters may be smarter, stronger, and braver than ever before. If these technologies are safe, is there any reason to reject their use? In this article, I argue that the use of enhancements is constrained by the importance of maintaining the moral responsibility of military personnel. This is crucial for two reasons: the military's ethical commitments require military personnel to be morally responsible agents, and moral responsibility is necessary for integrity and the moral emotions of guilt and remorse, both of which are important for moral growth and psychological well-being. Enhancements that undermined combatants' moral responsibility would therefore undermine the military's moral standing and would harm combatants' well-being. A genuine commitment to maintaining the military's ethical standards and the well-being of combatants therefore requires a careful analysis of performance-enhancing technologies before they are implemented.

  10. Application of FPGA technology to performance limitations in radiation therapy

    Science.gov (United States)

    DeMarco, John J.; Smathers, J. B.; Solberg, Tim D.; Casselman, Steve

    1996-10-01

    The field programmable gate array (FPGA) is a promising technology for increasing computation performance by providing for the design of custom chips through programmable logic blocks. This technology was used to implement and test a hardware random number generator (RNG) versus four software algorithms. The custom hardware consists of a sun SBus-based board (EVC) which has been designed around a Xilinx FPGA. A timing analysis indicates the Sun/EVC hardware generator computes 1 multiplied by 106 random numbers approximately 50 times faster than the multiplicative congruential algorithm. The hardware and software RNGs were also compare using a Monte Carlo photon transport algorithm. For this comparison the Sun/EVC generator produces a performance increase of approximately 2.0 versus the software generators. This comparison is based upon 1 multiplied by 105 photon histories.

  11. Comment on "Frequency shifts in NIST Cs primary frequency standards due to transverse rf field gradients"

    CERN Document Server

    Gibble, Kurt

    2015-01-01

    We discuss the theoretical treatment of the microwave lensing frequency shift of the NIST-F1 and F2 atomic fountain clocks by Ashby et al. [Phy. Rev. A. 91, 033624 (2015)]. The shifts calculated by NIST are much smaller than the previously evaluated microwave lensing frequency shifts of other clocks contributing to International Atomic Time. We identify several fundamental problems in the NIST treatment and demonstrate that each significantly affects their results. We also show a smooth transition of microwave lensing frequency shifts to the photon recoil shift for large wave packets.

  12. Digital Technologies and performative pedagogies: Repositioning the visual

    OpenAIRE

    Kathryn Grushka; Debra Donnelly

    2010-01-01

    Images are becoming a primary means of information presentation in the digitized global media and digital technologies have emancipated and democratized the image. This allows for the reproduction and manipulation of images on a scale never seen before and opens new possibilities for teachers schooled in critical visuality. This paper reports on an innovative pre-service teacher training course in which a cross-curricula cohort of secondary teachers employed visual performative competencies t...

  13. Automated Fabrication Technologies for High Performance Polymer Composites

    Science.gov (United States)

    Shuart , M. J.; Johnston, N. J.; Dexter, H. B.; Marchello, J. M.; Grenoble, R. W.

    1998-01-01

    New fabrication technologies are being exploited for building high graphite-fiber-reinforced composite structure. Stitched fiber preforms and resin film infusion have been successfully demonstrated for large, composite wing structures. Other automatic processes being developed include automated placement of tacky, drapable epoxy towpreg, automated heated head placement of consolidated ribbon/tape, and vacuum-assisted resin transfer molding. These methods have the potential to yield low cost high performance structures by fabricating composite structures to net shape out-of-autoclave.

  14. Student perceptions of secondary science: A performance technology application

    Science.gov (United States)

    Small, Belinda Rusnak

    The primary purpose of this study was to identify influences blocking or promoting science performance from the lived K-12 classroom experience. Human Performance Technology protocols were used to understand factors promoting or hindering science performance. The goal was to gain information from the individual students' perspective to enhance opportunities for stakeholders to improve the current state of performance in science education. Individual perspectives of 10 secondary science students were examined using grounded theory protocols. Findings include students' science learning behaviors are influenced by two major themes, environmental supports and individual learning behaviors. The three environmental support factors identified include the methods students receive instruction, students' opportunities to access informal help apart from formal instruction, and students' feelings of teacher likability. Additionally, findings include three major factors causing individual learners to generate knowledge in science. Factors reported include personalizing information to transform data into knowledge, customizing learning opportunities to maximize peak performance, and tapping motivational opportunities to persevere through complex concepts. The emergent theory postulated is that if a performance problem exists in an educational setting, then integrating student perspectives into the cause analysis opens opportunity to align interventions for influencing student performance outcomes. An adapted version of Gilbert's Behavioral Engineering Model is presented as an organizational tool to display the findings. The boundaries of this Performance Technology application do not extend to the identification, selection, design, or implementation of solutions to improved science performance. However, as stakeholders begin to understand learner perspectives then aligned decisions may be created to support learners of science in a direct, cost effective manner.

  15. PERFORMANCE MANAGEMENT APPROACHES IN ECONOMIC ORGANIZATIONS USING INFORMATION TECHNOLOGY

    Directory of Open Access Journals (Sweden)

    Anca Mehedintu

    2012-03-01

    Full Text Available Performance management includes activities that ensure that goals are consistently being met inan effective and efficient manner. Performance management can focus on the performance of an organization, adepartment, employee, or even the processes to build a product or service, as well as many other areas.In these days of globalization and intensive use of information technology, the organizations must defineand implement an appropriate strategy that would support their medium-term development, stability andcompetitiveness. This is achieved through a coherent and interrelated set of activities for understanding thecustomer expectations and the level at which the offer of organization add value to customers and satisfy theirneeds, define their internal organization to allow timely response to market demands without losing focus on client,tracking strategy and business model for the accomplishment of the organization mission, aligning the existing ITproject management or under development implementation in organization with the strategic management oforganization etc. Strategic Management determines the improvement of processes, effective use of resources, focuson critical areas in terms of finance, creating opportunities for innovation and technological progress, improvementof the supply mechanism and the duty to promote personal interaction and negotiation at all levels, continuousassessment of organization and its technological trends, analyze the market potential and competence field etc.Strategic management system will not give good results if the strategy is not defined by a set of operationalobjectives clearly at all levels.Business performance is based on a set of analytical processes of business, supported by informationtechnology that defines the strategic goals that can be measured by performance indicators. EnterprisePerformance Management creates a powerful and precise environment, characterized by data consistency,efficiency analysis

  16. NIST Ionization Chamber “A” Sample-Height Corrections

    Science.gov (United States)

    Fitzgerald, Ryan

    2012-01-01

    For over 30 years scientists in the NIST radioactivity group have been using their pressurized ionization chamber “A” (PIC “A”) to make measurements of radioactivity and radioactive half-lives. We now have evidence that some of those reported measurements were incorrect due to slippage of the source positioning ring over time. The temporal change in the holder caused an error in the source-height within the chamber, which was thought to be invariant. This unaccounted-for height change caused a change in the detector response and thus a relative error in measured activity on the order of 10−5 to 10−3 per year, depending on the radionuclide. The drifting detector response affected calibration factors and half-life determinations. After discovering the problem, we carried out historic research and new sensitivity tests. As a result, we have created a quantitative model of the effect and have used that model to estimate corrections to some of the past measurement results from PIC “A”. In this paper we report the details and results of that model. Meanwhile, we have fixed the positioning ring and are recalibrating the detector using primary measurement methods and enhanced quality control measures. PMID:26900515

  17. NIST Ionization Chamber "A" Sample-Height Corrections.

    Science.gov (United States)

    Fitzgerald, Ryan

    2012-01-01

    For over 30 years scientists in the NIST radioactivity group have been using their pressurized ionization chamber "A" (PIC "A") to make measurements of radioactivity and radioactive half-lives. We now have evidence that some of those reported measurements were incorrect due to slippage of the source positioning ring over time. The temporal change in the holder caused an error in the source-height within the chamber, which was thought to be invariant. This unaccounted-for height change caused a change in the detector response and thus a relative error in measured activity on the order of 10(-5) to 10(-3) per year, depending on the radionuclide. The drifting detector response affected calibration factors and half-life determinations. After discovering the problem, we carried out historic research and new sensitivity tests. As a result, we have created a quantitative model of the effect and have used that model to estimate corrections to some of the past measurement results from PIC "A". In this paper we report the details and results of that model. Meanwhile, we have fixed the positioning ring and are recalibrating the detector using primary measurement methods and enhanced quality control measures.

  18. STUDY ON A HIGH PERFORMANCE INTEGRATED BEEKEEPING TECHNOLOGY

    Directory of Open Access Journals (Sweden)

    A POPESCU

    2003-10-01

    Full Text Available This study aimed to make an economic evaluation of a high performance modern beekeeping technology leading to an increased bee family capacity. The new technology removes the disadvantages of the traditional one utilising just natural picking based on Robinia, Lime, sunflower and wild flora, most of times deeply affected by unfavourable climate conditions (drought, rainfalls and conducting to important bee losses during the winter season and mainly during the critical period till the next picking. The modern technology assures 75 % more bees per family, an increased queen laying capacity by 33 %,, a 50 % reduction of bee loss in winter season, by 20 % more honey , by 50 % more propolis, by 33 % more pollen, by 50 % more swarms, by 60 % more royal jelly and by 50 % more bee venom. The modern technology is based on a scientific feeding management applying a stimulating, completing and proteinic feeding (pollen cake and/or pollen substitutes such as: degreased powder milk 30 % and soya bean cake, involving peculiar costs ranking between USD 9.73-10.06 per family/year. The total bee rearing costs have been estimated at USD 17.83 in average per family/year, of which: 55.5 % feeding costs, 6.8 % queen replacement cost, 3.2 % treatments cost, 13.5 % costs for supplying new frames and combs,17.4 % transportation costs for moving of bee families and the remaining of 3.6 % labour costs. Taking into account a standard apiary (100 bee families of an increased power, a beekeeper can obtain an USD 12,100.4 annual income, by 55.9 % higher than in case of the traditional beekeeping technology. As a conclusion, the new technology assures a higher biological and economical efficiency, USD 3,350 profit gain that is a profit by 48 % higher than in case of the classic technology. For this reason, we recommend this modern technology to be implemented by beekeepers if they would like to transform their apiaries into high performance commercial farms.

  19. REFERENCED TECHNOLOGICAL PERFORMANCES FOR STURGEON FINGERLING BREEDING IN INTENSIVE SYSTEM

    Directory of Open Access Journals (Sweden)

    MARILENA TALPES

    2013-12-01

    Full Text Available Work objective is to present an oversight regarding the modality to rearing the descendents of anadromous sturgeon species, Acipenser stellatus, Acipenser gueldenstaedti and Huso huso, obtained trough artificial reproduction, indicating successively, the production system, its management, alimentation strategy for sturgeon species and technological performances registered by these. Experiments developed during two phases, respectively the post-embryonary one and sapling rearing during of a 168 days period. Registered performances of sturgeon species material were assessed in conformity with specifically biotechnological indicators.

  20. The impact of technology on sporting performance in Olympic sports.

    Science.gov (United States)

    Haake, Steve J

    2009-11-01

    To assess the effect of technology on sport, the performance statistics for four disciplines were analysed: the 100-m sprint, pole vault, javelin, and cycling. The concept of a performance improvement index was developed to allow comparison between athletes and between sports with a higher index indicating a greater improvement in the sport. The following performance improvement indices were found: 100-m sprint, 24% over 108 years; pole vault, 86% over 94 years; javelin, 95% over 76 years; 4-km individual pursuit, 35% over 32 years; one-hour cycling record, 221% over 111 years. Around 4% of the index for the sprint was attributed to tighter, aerodynamic clothing, suggesting that general athletic improvement in sprint-type events has been around 20%. Technological developments in simple equipment such as the pole vault or javelin were seen to affect the index by around 30%, while the index associated with aerodynamic improvements in the one-hour record was around 100%. It is concluded that the performance improvement index could be extended to amateur as well as elite sport where distance or time is used as a measure of performance.

  1. 75 FR 62369 - Technology Innovation Program Advisory Board

    Science.gov (United States)

    2010-10-08

    ... Innovation Program Advisory Board AGENCY: National Institute of Standards and Technology, Department of Commerce. ACTION: Notice of public meeting. SUMMARY: The Technology Innovation Program Advisory Board... address is rene.cesaro@nist.gov . SUPPLEMENTARY INFORMATION: The Technology Innovation Program...

  2. Characteristics and Performance of Existing Load Disaggregation Technologies

    Energy Technology Data Exchange (ETDEWEB)

    Mayhorn, Ebony T. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Sullivan, Greg P. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Butner, Ryan S. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Hao, He [Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Baechler, Michael C. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

    2015-04-10

    Non-intrusive load monitoring (NILM) or non-intrusive appliance load monitoring (NIALM) is an analytic approach to disaggregate building loads based on a single metering point. This advanced load monitoring and disaggregation technique has the potential to provide an alternative solution to high-priced traditional sub-metering and enable innovative approaches for energy conservation, energy efficiency, and demand response. However, since the inception of the concept in the 1980’s, evaluations of these technologies have focused on reporting performance accuracy without investigating sources of inaccuracies or fully understanding and articulating the meaning of the metrics used to quantify performance. As a result, the market for, as well as, advances in these technologies have been slowly maturing.To improve the market for these NILM technologies, there has to be confidence that the deployment will lead to benefits. In reality, every end-user and application that this technology may enable does not require the highest levels of performance accuracy to produce benefits. Also, there are other important characteristics that need to be considered, which may affect the appeal of NILM products to certain market targets (i.e. residential and commercial building consumers) and the suitability for particular applications. These characteristics include the following: 1) ease of use, the level of expertise/bandwidth required to properly use the product; 2) ease of installation, the level of expertise required to install along with hardware needs that impact product cost; and 3) ability to inform decisions and actions, whether the energy outputs received by end-users (e.g. third party applications, residential users, building operators, etc.) empower decisions and actions to be taken at time frames required for certain applications. Therefore, stakeholders, researchers, and other interested parties should be kept abreast of the evolving capabilities, uses, and characteristics

  3. Performance Enhancement Technology for the Vapor Compression Refrigeration Cycle

    Science.gov (United States)

    Man'o, Tatsunori

    High efficiency refrigerator have been developed. For energy saving that is concerned with against global warming, performance enhancement of vapor compression refrigerator is required in field of air condition and refrigeration facility. In this paper, a review of recent performance enhancement technologies for the vapor compression refrigeration cycle is presented. This review contains high performance cycles of large sized centrifugal chiller, small to middle sized chiller and packaged air conditioner. Moreover, researches and developments of the refrigeration cycle recovering throttling loss, applications of ejector to boost in compressor suction pressure and to recirculate vapor refrigerant in the evaporator for heat transfer enhancement, and applications of expander to employ expansion work for compression work, are reviewed.

  4. Technology Evaluation Report 17. Videoconferencing in Theatre and Performance Studies

    Directory of Open Access Journals (Sweden)

    Mark Childs

    2003-04-01

    Full Text Available Previous reports in this series have indicated the growing acceptance of video-conferencing in education delivery. The current report compares a series of video-conferencing methods in an activity requiring precision of expression and communication: theatre and performance studies. The Accessing and Networking with National and International Expertise (ANNIE project is a two-year project undertaken jointly by the University of Warwick and the University of Kent at Canterbury, running from March 2001 to March 2003. The project's aim is to enhance students' learning experience in theatre studies by enabling access to research-based teaching and to workshops led by practitioners of national and international standing. Various technologies have been used, particularly ISDN video-conferencing, computer-mediated conferencing, and the Internet. This report concludes that video-conferencing methods will gain acceptance in education, as academic schools themselves are able to operate commonly available technology the assistance of specialised service units.

  5. Oil Bypass Filter Technology Performance Evaluation - January 2003 Quarterly Report

    Energy Technology Data Exchange (ETDEWEB)

    Laurence R. Zirker; James E. Francfort

    2003-01-01

    This report details the initial activities to evaluate the performance of the oil bypass filter technology being tested by the Idaho National Engineering and Environmental Laboratory (INEEL) for the U.S. Department of Energy's FreedomCAR & Vehicle Technologies Program. Eight full-size, four-cycle diesel-engine buses used to transport INEEL employees on various routes have been equipped with oil bypass systems from the puraDYN Corporation. Each bus averages about 60,000 miles a year. The evaluation includes an oil analysis regime to monitor the presence of necessary additives in the oil and to detect undesirable contaminants. Very preliminary economic analysis suggests that the oil bypass system can reduce life-cycle costs. As the evaluation continues and oil avoidance costs are quantified, it is estimated that the bypass system economics may prove increasingly favorable, given the anticipated savings in operational costs and in reduced use of oil and waste oil avoidance.

  6. Oil Bypass Filter Technology Performance Evaluation - First Quarterly Report

    Energy Technology Data Exchange (ETDEWEB)

    Zirker, L.R.; Francfort, J.E.

    2003-01-31

    This report details the initial activities to evaluate the performance of the oil bypass filter technology being tested by the Idaho National Engineering and Environmental Laboratory (INEEL) for the U.S. Department of Energy's FreedomCAR & Vehicle Technologies Program. Eight full-size, four-cycle diesel-engine buses used to transport INEEL employees on various routes have been equipped with oil bypass systems from the puraDYN Corporation. Each bus averages about 60,000 miles a year. The evaluation includes an oil analysis regime to monitor the presence of necessary additives in the oil and to detect undesirable contaminants. Very preliminary economic analysis suggests that the oil bypass system can reduce life-cycle costs. As the evaluation continues and oil avoidance costs are quantified, it is estimated that the bypass system economics may prove increasingly favorable, given the anticipated savings in operational costs and in reduced use of oil and waste oil avoidance.

  7. A summary of the Planck constant measurements using a watt balance with a superconducting solenoid at NIST

    CERN Document Server

    Schlamminger, S; Haddad, D; Newell, D B; Seifert, F; Chao, L S; Liu, R; Williams, E R; Pratt, J R

    2015-01-01

    Researchers at the National Institute of Standards and Technology have been using a watt balance, NIST-3, to measure the Planck constant $h$ for over ten years. Two recently published values disagree by more than one standard uncertainty. The motivation for the present manuscript is twofold. First, we correct the latest published number to take into account a recently discovered systematic error in mass dissemination at the Bureau International des Poids et Mesures (BIPM). Second, we provide guidance on how to combine the two numbers into one final result. In order to adequately reflect the discrepancy, we added an additional systematic uncertainty to the published uncertainty budgets. The final value of $h$ measured with NIST-3 is $h = 6.626\\,069\\,36(37)\\times 10^{-34}\\,\\mbox{J\\,s}$. This result is $77(57) \\times 10^{-9}$ fractionally higher than $h_{\\mathrm{90}}$. Each number in parentheses gives the value of the standard uncertainty in the last two digits of the respective value and $h_{\\mathrm{90}}$ is th...

  8. A re-evaluation of the relativistic redshift on frequency standards at NIST, Boulder, Colorado, USA

    Science.gov (United States)

    Pavlis, Nikolaos K.; Weiss, Marc A.

    2017-08-01

    We re-evaluated the relativistic redshift correction applicable to the frequency standards at the National Institute of Standards and Technology (NIST) in Boulder, Colorado, USA, based on a precise GPS survey of three benchmarks on the roof of the building where these standards had been previously housed, and on global and regional geoid models supported by data from the GRACE and GOCE missions, including EGM2008, USGG2009, and USGG2012. We also evaluated the redshift offset based on the published NAVD88 geopotential number of the leveling benchmark Q407 located on the side of Building 1 at NIST, Boulder, Colorado, USA, after estimating the bias of the NAVD88 datum at our specific location. Based on these results, our current best estimate of the relativistic redshift correction, if frequency standards were located at the height of the leveling benchmark Q407 outside the second floor of Building 1, with respect to the EGM2008 geoid whose potential has been estimated to be {{W}0}=62 636 855.69 {{m}2} {{s}-2} , is equal to (-1798.50  ±  0.06)  ×  10-16. The corresponding value, with respect to an equipotential surface defined by the International Astronomical Union’s (IAU) adopted value of {{W}0}=62 636 856.0 {{m}2} {{s}-2} , is (-1798.53  ±  0.06)  ×  10-16. These values are comparable to the value of (-1798.70  ±  0.30)  ×  10-16, estimated by Pavlis and Weiss in 2003, with respect to an equipotential surface defined by {{W}0}=62 636 856.88 {{m}2} {{s}-2} . The minus sign implies that clocks run faster in the laboratory in Boulder than a corresponding clock located on the geoid. Contribution of US government, not subject to Copyright.

  9. Benchmarking and Performance Improvement at Rocky Flats Environmental Technology Site

    Energy Technology Data Exchange (ETDEWEB)

    Elliott, C. [Kaiser-Hill Co., LLC, Golden, CO (United States)], Doyle, D. [USDOE Rocky Flats Office, Golden, CO (United States)], Featherman, W.D. [Project Performance Corp., Sterline, VA (United States)

    1997-12-31

    The Rocky Flats Environmental Technology Site (RFETS) has initiated a major work process improvement campaign using the tools of formalized benchmarking and streamlining. This paper provides insights into some of the process improvement activities performed at Rocky Flats from November 1995 through December 1996. It reviews the background, motivation, methodology, results, and lessons learned from this ongoing effort. The paper also presents important gains realized through process analysis and improvement including significant cost savings, productivity improvements, and an enhanced understanding of site work processes.

  10. Performance Evaluation of Different SRAM Cell Structures at Different Technologies

    Directory of Open Access Journals (Sweden)

    Sapna Singh, Neha Arora

    2012-03-01

    Full Text Available In recent years the demand for low power devices has been increases tremendously. To solve the power dissipation problem, many researchers have proposed different ideas from the device level to the architectural level and above. However, there is no universal way to avoid tradeoffs between power, delay and area, thus designers are required to choose appropriate techniques that satisfy application and product needs. The demand for static random-access memory (SRAM is increasing with large use of SRAM in System On-Chip and high-performance VLSI circuits. This paper represents the simulation of different SRAM cells and their comparative analysis on different parameters such as Power Supply Voltage, area efficiency etc to enhance the performance. All the simulations have been carried out on BSIM 3V3 90nm,45nm and 32 technology at Tanner EDA tool.

  11. Reforming Technologies to Improve the Performance of Combustion Systems

    Directory of Open Access Journals (Sweden)

    Hashim Hassan

    2014-09-01

    Full Text Available A large number of theoretical and experimental studies have shown that the performance of kerosene combustion increases significantly if combustion is being assisted by the addition of hydrogen to the fuel/air mixture during the combustion process. It reduces the amount of CO, CO2 and NOx emissions, while increasing the flame stability limits. It also helps in bruning fuel/air mixtures at much leaner equivalence ratios. The same principle could be applied to gain benefits in gas turbine combustors. Hydrogen for this purpose could be produced by the reforming of hydrocarbon fuels using a reformer module. This paper presents key hydrogen reforming technologies which, by implementation in gas turbine combustors, hold potential for improving both their performance and service life.

  12. Selectively oxidized vertical-cavity laser performance and technology

    Energy Technology Data Exchange (ETDEWEB)

    Choquette, K.D.; Hou, H.Q.; Geib, K.M.; Hammons, B.E.

    1998-02-01

    The authors discuss revolutionary performance advances in selectively oxidized vertical-cavity surface emitting lasers (VCSELs), which have enabled low operating power laser diodes appropriate for aerospace applications. Incorporating buried oxide layers converted from AIGaAs layers within the laser cavity produces enhanced optical and electrical confinement enabling superior laser performance, such as high efficiency and modulation bandwidth. VCSELs also shown to be viable over varied environmental conditions such as ambient temperature and ionized radiation. The development of novel VCSEL technologies for advanced system applications is also described. Two dimensional individually addressable VCSEL arrays exhibit uniform threshold and operating characteristics. Bottom emitting 850 nm VCSEL arrays fabricated using wafer fusion are also reported.

  13. Enhancing performance and reducing stress in sports technological advances

    CERN Document Server

    Ivancevic, Tijana; Greenberg, Ronald

    2015-01-01

    This book is designed to help athletes and individuals interested in high sports performance in their journey towards the perfection of human sports abilities and achievements. It has two main goals: accelerating the acquisition of motor skills and preparing and vigilantly reducing the recovery time after training and competition. The Diamond Sports Protocol (DSP) presents state-of-the-art techniques for current sport and health technologies, particularly neuromuscular electrical stimulation (Sports Wave), oxygen infusion (Oxy Sports), infrared (Sports Infrared Dome) and lactic acid cleaning (Turbo Sports). The book suggest DSP as an essential part of every future athlete's training, competition and health maintenance. The book is for everyone interested in superior sports performance, fast and effective rehabilitation from training and competition and sports injury prevention.

  14. Performance of Personal Identification System Technique Using Iris Biometrics Technology

    Directory of Open Access Journals (Sweden)

    V.K. Narendira Kumar

    2013-04-01

    Full Text Available The Iris identification as one of the significant techniques of biometric identification systems s and iris recognition algorithm is described. Biometric technology advances intellectual properties are wanted by many unauthorized personnel. As a result many researchers have being searching ways for more secure authentication methods for the user access. Iris recognition uses iris patterns for personnel identification. The system steps are capturing iris patterns; determining the location of iris boundaries; converting the iris boundary to the stretched polar coordinate system; extracting iris code based on texture analysis. The system has been implemented and tested using dataset of number of samples of iris data with different contrast quality. The developed algorithm performs satisfactorily on the images, provides 93% accuracy. Experimental results show that the proposed method has an encouraging performance.

  15. Survey of LWR environmental control technology performance and cost

    Energy Technology Data Exchange (ETDEWEB)

    Heeb, C.M.; Aaberg, R.L.; Cole, B.M.; Engel, R.L.; Kennedy, W.E. Jr.; Lewallen, M.A.

    1980-03-01

    This study attempts to establish a ranking for species that are routinely released to the environment for a projected nuclear power growth scenario. Unlike comparisons made to existing standards, which are subject to frequent revision, the ranking of releases can be used to form a more logical basis for identifying the areas where further development of control technology could be required. This report describes projections of releases for several fuel cycle scenarios, identifies areas where alternative control technologies may be implemented, and discusses the available alternative control technologies. The release factors were used in a computer code system called ENFORM, which calculates the annual release of any species from any part of the LWR nuclear fuel cycle given a projection of installed nuclear generation capacity. This survey of fuel cycle releases was performed for three reprocessing scenarios (stowaway, reprocessing without recycle of Pu and reprocessing with full recycle of U and Pu) for a 100-year period beginning in 1977. The radioactivity releases were ranked on the basis of a relative ranking factor. The relative ranking factor is based on the 100-year summation of the 50-year population dose commitment from an annual release of radioactive effluents. The nonradioactive releases were ranked on the basis of dilution factor. The twenty highest ranking radioactive releases were identified and each of these was analyzed in terms of the basis for calculating the release and a description of the currently employed control method. Alternative control technology is then discussed, along with the available capital and operating cost figures for alternative control methods.

  16. Performance Criteria for Capture and/or Immobilization Technologies

    Energy Technology Data Exchange (ETDEWEB)

    Jubin, R. T. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Bruffey, S. H. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Strachan, D. M. [Strata-G, LLC, Knoxville, TN (United States); Soelberg, N. R. [Idaho National Lab. (INL), Idaho Falls, ID (United States); Spencer, B. B. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Riley, B. J. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

    2016-02-01

    The capture and subsequent immobilization of the four volatile radionuclides (3H, 14C, 85Kr, and 129I) from the off-gas streams of a used nuclear fuel reprocessing facility has been a topic of substantial research interest for the US DOE and international colleagues. Regulations set forth by the US EPA direct that some or all of these radionuclides (based upon fuel burnup, fuel type, cooling time, etc.) will require removal, to some extent, from the plant effluent streams prior to discharge to the environment. Upon removal, the radionuclide, as well as any associated sorbent, is destined for waste. Research of separation and capture methodologies has included a wide range of technologies including liquid caustic scrubbing systems, solid adsorbents, and cryogenic distillation. The studies of waste forms have been correspondingly diverse. In considering the technologies available for future development and implementation of both sorbents and waste forms, it will be necessary to use benchmarked measures of performance to objectively evaluate each sorbent system or waste form. This document is intended to provide initial guidance on the types of performance criteria for capture materials and waste forms intended for use in the recycling removal and disposal of UNF and, where possible, the minimum acceptable values for those criteria.

  17. Center for Nanoscale Science and Technology

    Science.gov (United States)

    NIST Center for Nanoscale Science and Technology (Program website, free access)   Currently there is no database matching your keyword search, but the NIST Center for Nanoscale Science and Technology website may be of interest. The Center for Nanoscale Science and Technology enables science and industry by providing essential measurement methods, instrumentation, and standards to support all phases of nanotechnology development, from discovery to production.

  18. Use of wearable technology for performance assessment: a validation study.

    Science.gov (United States)

    Papi, Enrica; Osei-Kuffour, Denise; Chen, Yen-Ming A; McGregor, Alison H

    2015-07-01

    The prevalence of osteoarthritis is increasing globally but current compliance with rehabilitation remains poor. This study explores whether wearable sensors can be used to provide objective measures of performance with a view to using them as motivators to aid compliance to osteoarthritis rehabilitation. More specifically, the use of a novel attachable wearable sensor integrated into clothing and inertial measurement units located in two different positions, at the waist and thigh pocket, was investigated. Fourteen healthy volunteers were asked to complete exercises adapted from a knee osteoarthritis rehabilitation programme whilst wearing the three sensors including five times sit-to-stand test, treadmill walking at slow, preferred and fast speeds. The performances of the three sensors were validated against a motion capture system and an instrumented treadmill. The systems showed a high correlation (r(2) > 0.7) and agreement (mean difference range: -0.02-0.03 m, 0.005-0.68 s) with gold standards. The novel attachable wearable sensor was able to monitor exercise tasks as well as the inertial measurement units (ICC > 0.95). Results also suggested that a functional placement (e.g., situated in a pocket) is a valid position for performance monitoring. This study shows the potential use of wearable technologies for assessing subject performance during exercise and suggests functional solutions to enhance acceptance.

  19. Measurement of the Surface and Underground Neutron Spectra with the UMD/NIST Fast Neutron Spectrometers

    Science.gov (United States)

    Langford, Thomas J.

    The typical fast neutron detector falls into one of two categories, Bonner sphere spectrometers and liquid scintillator proton recoil detectors. These two detector types have traditionally been used to measure fast neutrons at the surface and in low background environments. The cosmogenic neutron spectrum and flux is an important parameter for a number of experimental efforts, including procurement of low background materials and the prediction of electronic device faults. Fast neutrons can also cause problems for underground low-background experiments, through material activation or signals that mimic rare events. Current detector technology is not sufficient to properly characterize these backgrounds. To this end, the University of Maryland and the National Institute of Standards and Technology designed, developed, and deployed two Fast Neutron Spectrometers (FaNS) comprised of plastic scintillator and 3He proportional counters. The detectors are based upon capture-gated spectroscopy, a technique that demands a delayed coincidence between a neutron scatter and the resulting neutron capture after thermalization. This technique provides both particle identification and knowledge that the detected neutron fully thermalized. This improves background rejection capabilities and energy resolution. Presented are the design, development, and deployment of FaNS-1 and FaNS-2. Both detectors were characterized using standard fields at NIST, including calibrated 252Cf neutron sources and two monoenergetic neutron generators. Measurements of the surface fast neutron spectrum and flux have been made with both detectors, which are compared with previous measurements by traditional detectors. Additionally, FaNS-1 was deployed at the Kimballton Underground Research Facility (KURF) in Ripplemead, VA. A measurement of the fast neutron spectrum and flux at KURF is presented as well. FaNS-2 is currently installed in a shallow underground laboratory where it is measuring the muon

  20. A Comparison of 1 T(Omega) and 10 T (Omega) High Resistance Standards Between NIST and Sandia

    Energy Technology Data Exchange (ETDEWEB)

    Jarrett, D.G.; Dziuba, R.F.; Kraft, M.E.

    1999-04-23

    NIST-built 10 T{Omega} and commercial 1 T{Omega} standard resistors were hand carried between NIST and Sandia for a high resistance comparison. The comparison tested the ruggedness of the new NIST-built standard resistors, provided a check of the scaling between the two laboratories, supported measurements to reestablish NIST calibration services at 10 T{Omega} and 100 T{Omega}, and demonstrated the possibility of establishing a NIST high resistance measurement assurance program (MAP). The comparison has demonstrated agreement on the order of 0.07% which is within the expanded uncertainties (coverage factor = 2) of NIST and Sandia at 1 T{Omega} and 10 T{Omega}.

  1. Development of fuel performance and thermal hydraulic technology

    Energy Technology Data Exchange (ETDEWEB)

    Jung, Youn Ho; Song, K. N.; Kim, H. K. and others

    2000-03-01

    Space grid in LWR fuel assembly is a key structural component to support fuel rods and to enhance heat transfer from fuel rod to the coolant. Therefore, the original spacer grid has been developed. In addition, new phenomena in fuel behavior occurs at the high burnup, so that models to analyze those new phenomena were developed. Results of this project can be summarized as follows. - Seven different spacer grid candidates have been invented and submitted for domestic and US patents. Spacer grid test specimen(3x3 array and 5x5 array) were fabricated for each candidate and the mechanical tests were performed. - Basic technologies in the mechanical and thermal hydraulic behavior in the spacer grid development are studied and relevant test facilities were established - Fuel performance analysis models and programs were developed for the high burnup pellet and cladding, and fuel performance data base were compiled - Procedures of fuel characterization and in-/out of-pile tests were prepared - Conceptual design of fuel rod for integral PWR was carried out. (author)

  2. Assessing the Role of Technology Adoption in China's Growth Performance

    DEFF Research Database (Denmark)

    Wirz, Nadja

    to what extent these productivity increases can be explained by technology-adoption theory. In less developed countries, the key element behind technological progress is technology adoption, the process of copying technological knowledge invented throughout the world. To uncover a measure of China...

  3. Digital Technologies and performative pedagogies: Repositioning the visual

    Directory of Open Access Journals (Sweden)

    Kathryn Grushka

    2010-05-01

    Full Text Available Images are becoming a primary means of information presentation in the digitized global media and digital technologies have emancipated and democratized the image. This allows for the reproduction and manipulation of images on a scale never seen before and opens new possibilities for teachers schooled in critical visuality. This paper reports on an innovative pre-service teacher training course in which a cross-curricula cohort of secondary teachers employed visual performative competencies to produce a series of learning objects on a digital platform. The resulting intertextual narratives demonstrate that the manipulation of image and text offered by digital technologies create a powerful vehicle for investigating knowledge and understandings, evolving new meaning and awakening latent creativity in the use of images for meaning making. This research informs the New Literacies and multimodal fields of enquiry and argues that visuality is integral to any pedagogy that purports to be relevant to the contemporary learner. It argues that the visual has been significantly under-valued as a conduit for knowledge acquisition and meaning making in the digital environment and supports the claim that critical literacy, interactivity, experimentation and production are vital to attaining the tenets of transformative education (Buckingham, 2007; Walsh, 2007; Cope & Kalantzis, 2008.

  4. Impact of TQM and Technology Management on Organizational Performance

    Directory of Open Access Journals (Sweden)

    MUHAMMAD TASLEEM

    2016-10-01

    Full Text Available In the growing business competitiveness TQM (Total Quality Management and TM (Technology Management practices have become important for organizational success. TQM fosters business excellence while TM helps to deal with process and product related technological challenges. However, in literature TM has received little consideration with TQM. This paper is a research study that attempts to identify any combined relationship of both concepts with OP (Organizational Performance while taking into account different organizational contextual factors including ISO-9001 certification. Responses from 86 different organizations in Pakistan are collected through questionnaire survey and random sampling. Statistical analysis shows that OP is positively associated to TQM and TM. Results of this study indicate the significance of ISO-9001 certification for TQM but do not support it for OP. It is also observed that organizations of private sector are significantly better in TQM and TM practices, so in OP, in comparison to government or public sector organizations. The study contributes to explore and augment both practices for implementation to improve OP.

  5. Review of PV Inverter Technology Cost and Performance Projections

    Energy Technology Data Exchange (ETDEWEB)

    Navigant Consulting Inc.

    2006-01-01

    The National Renewable Energy Laboratory (NREL) has a major responsibility in the implementation of the U.S. Department of Energy's (DOE's) Solar Energy Technologies Program. Sandia National Laboratories (SNL) has a major role in supporting inverter development, characterization, standards, certifications, and verifications. The Solar Energy Technologies Program recently published a Multiyear Technical Plan, which establishes a goal of reducing the Levelized Energy Cost (LEC) for photovoltaic (PV) systems to $0.06/kWh by 2020. The Multiyear Technical Plan estimates that, in order to meet the PV system goal, PV inverter prices will need to decline to $0.25-0.30 Wp by 2020. DOE determined the need to conduct a rigorous review of the PV Program's technical and economic targets, including the target set for PV inverters. NREL requested that Navigant Consulting Inc.(NCI) conduct a review of historical and projected cost and performance improvements for PV inverters, including identification of critical barriers identified and the approaches government might use to address them.

  6. Application Specific Performance Technology for Productive Parallel Computing

    Energy Technology Data Exchange (ETDEWEB)

    Malony, Allen D. [Univ. of Oregon, Eugene, OR (United States); Shende, Sameer [Univ. of Oregon, Eugene, OR (United States)

    2008-09-30

    Our accomplishments over the last three years of the DOE project Application- Specific Performance Technology for Productive Parallel Computing (DOE Agreement: DE-FG02-05ER25680) are described below. The project will have met all of its objectives by the time of its completion at the end of September, 2008. Two extensive yearly progress reports were produced in in March 2006 and 2007 and were previously submitted to the DOE Office of Advanced Scientific Computing Research (OASCR). Following an overview of the objectives of the project, we summarize for each of the project areas the achievements in the first two years, and then describe in some more detail the project accomplishments this past year. At the end, we discuss the relationship of the proposed renewal application to the work done on the current project.

  7. Development of evaluation and performance verification technology for radiotherapy radiation

    Energy Technology Data Exchange (ETDEWEB)

    Kim, J. Y.; Jang, S. Y.; Kim, B. H. and others

    2005-02-15

    No matter how much the importance is emphasized, the exact assessment of the absorbed doses administered to the patients to treat the various diseases such as lately soaring malignant tumors with the radiotherapy practices is the most important factor. In reality, several over-exposed patients from the radiotherapy practice become very serious social issues. Especially, the development of a technology to exactly assess the high doses and high energies (In general, dose administered to the patients with the radiotherapy practices are very huge doses, and they are about three times higher than the lethal doses) generated by the radiation generators and irradiation equipment is a competing issue to be promptly conducted. Over fifty medical centers in Korea operate the radiation generators and irradiation equipment for the radiotherapy practices. However, neither the legal and regulatory systems to implement a quality assurance program are sufficiently stipulated nor qualified personnel who could run a program to maintain the quality assurance and control of those generators and equipment for the radiotherapy practices in the medical facilities are sufficiently employed. To overcome the above deficiencies, a quality assurance program such as those developed in the technically advanced countries should be developed to exactly assess the doses administered to patients with the radiotherapy practices and develop the necessary procedures to maintain the continuing performance of the machine or equipment for the radiotherapy. The QA program and procedures should induce the fluent calibration of the machine or equipment with quality, and definitely establish the safety of patients in the radiotherapy practices. In this study, a methodology for the verification and evaluation of the radiotherapy doses is developed, and several accurate measurements, evaluations of the doses delivered to patients and verification of the performance of the therapy machine and equipment are

  8. Interventions (Solutions) Usage and Expertise in Performance Technology Practice: An Empirical Investigation

    Science.gov (United States)

    Van Tiem, Darlene M.

    2004-01-01

    Performance technology (PT) is complex, drawing theory from instructional design, organizational development, communications, industrial psychology, and industrial engineering to name a few. The Standards of Performance Technology developed for the certified performance technology designation codified the processes used in the practice of…

  9. Performance Measurements and Technology Demonstration of the VASIMR® VX-200

    Science.gov (United States)

    Longmier, B. W.; Bering, E. A.; Squire, J. P.; Glover, T. W.; Cassady, L. D.; Ilin, A. V.; Carter, M. D.; Olsen, C. S.; McCaskill, G. E.; Chang Díaz, F.

    2010-12-01

    Recent progress is discussed in the development of an advanced RF electric propulsion engine: the VAriable Specific Impulse Magnetoplasma Rocket (VASIMR®) VX-200, a 200 kW flight-technology prototype. This device is the only known industrial application of the physics of the aurora borealis. Results are presented from first stage only and first stage with booster stage experiments that were performed on the VX-200 using between 60 mg/s and 150 mg/s argon propellant. The plasma source is a helicon discharge that uses whistler mode waves near the lower hybrid frequency. The booster stage uses electromagnetic ion cyclotron wave absorption to accelerate the ions. Measurements of ion flux, ion energy, plasma density and potential gradients, and force density profiles taken in the exhaust plume of the VX-200 are made within a 150 cubic meter vacuum chamber and are presented in the context of individual stage and total engine performance. Measurements include detailed pitch angle scans of the accelerated ions and plasma parameter maps of the exhaust plume. An emphasis will be given to our ability to probe wave-particle interactions in the exhaust plume. We are now in a position to conduct more detailed auroral simulation studies and are actively seeking collaborators.

  10. Projects to improve mathematics performance at a university of technology

    Directory of Open Access Journals (Sweden)

    Ina Louw

    2009-09-01

    Full Text Available Lecturers at tertiary institutions have been expressing concern about the quality of students in mathematics for a long time now. Blame is usually placed at the door of secondary schools, but through put figures are still determining state subsidies and as such necessitate institutions to constantly revisit their efforts in terms of improving performance in mathematics. In this article, the results of two studies to improve the mathematics performance at a technical university are reported. The first study took place at the former Technikon Northern Gauteng and was an action research project with an experimental design. The study entailed the implementation of tutorial sessions and it revealed certain traits of tertiary mathematics education. Data were collected through structured observation, questionnaires and focus group interviews. A standardized questionnaire, Study Orientation Questionnaire in Maths (SOM, was introduced and “study habits” was the field in the test that featured most significantly in both the experimental and the control groups. The results revealed, inter alia, that timely assessment is needed to detect and correct misconceptions as soon as possible. It also pointed out that attendance of lectures (and tutorials impacted strongly on performance. Lastly, it was found that students preferred communicating mathematics through the medium of English and not by using their mother tongue. The second project was conducted at the Tshwane University of Technology (TUT and consisted of an investigation into assessment practices in first year mathematics. The study was executed with action research as strategy and data were collected through interviews, questionnaires and focus group interviews. Qualitative and quantitative data were collected and respondents were exposed to contemporary assessment strategies as suggested by OBE. The aim of the study was to enhance the respondents’ insight into contemporary assessment

  11. Advanced Manufacturing Technologies (AMT): Manufacturing Initiative Project

    Data.gov (United States)

    National Aeronautics and Space Administration — NASA supports the Advanced Manufacturing National Program Office (AMNPO). Hosted by the National Institute of Standards and Technology (NIST) the AMNPO is...

  12. Performance of active vibration control technology: the ACTEX flight experiments

    Science.gov (United States)

    Nye, T. W.; Manning, R. A.; Qassim, K.

    1999-12-01

    spacecraft bus smart structures by developing over 20 new technologies. As pathfinders, experience was gained in the implications of space system analyses, verification tests, and for ways to leverage this technology to meet new satellite performance requirements.

  13. High-Performance Secure Database Access Technologies for HEP Grids

    Energy Technology Data Exchange (ETDEWEB)

    Matthew Vranicar; John Weicher

    2006-04-17

    The Large Hadron Collider (LHC) at the CERN Laboratory will become the largest scientific instrument in the world when it starts operations in 2007. Large Scale Analysis Computer Systems (computational grids) are required to extract rare signals of new physics from petabytes of LHC detector data. In addition to file-based event data, LHC data processing applications require access to large amounts of data in relational databases: detector conditions, calibrations, etc. U.S. high energy physicists demand efficient performance of grid computing applications in LHC physics research where world-wide remote participation is vital to their success. To empower physicists with data-intensive analysis capabilities a whole hyperinfrastructure of distributed databases cross-cuts a multi-tier hierarchy of computational grids. The crosscutting allows separation of concerns across both the global environment of a federation of computational grids and the local environment of a physicist’s computer used for analysis. Very few efforts are on-going in the area of database and grid integration research. Most of these are outside of the U.S. and rely on traditional approaches to secure database access via an extraneous security layer separate from the database system core, preventing efficient data transfers. Our findings are shared by the Database Access and Integration Services Working Group of the Global Grid Forum, who states that "Research and development activities relating to the Grid have generally focused on applications where data is stored in files. However, in many scientific and commercial domains, database management systems have a central role in data storage, access, organization, authorization, etc, for numerous applications.” There is a clear opportunity for a technological breakthrough, requiring innovative steps to provide high-performance secure database access technologies for grid computing. We believe that an innovative database architecture where the

  14. Retrospective Analysis of NIST Standard Reference Material 1450, Fibrous Glass Board, for Thermal Insulation Measurements.

    Science.gov (United States)

    Zarr, Robert R; Heckert, N Alan; Leigh, Stefan D

    2014-01-01

    Thermal conductivity data acquired previously for the establishment of Standard Reference Material (SRM) 1450, Fibrous Glass Board, as well as subsequent renewals 1450a, 1450b, 1450c, and 1450d, are re-analyzed collectively and as individual data sets. Additional data sets for proto-1450 material lots are also included in the analysis. The data cover 36 years of activity by the National Institute of Standards and Technology (NIST) in developing and providing thermal insulation SRMs, specifically high-density molded fibrous-glass board, to the public. Collectively, the data sets cover two nominal thicknesses of 13 mm and 25 mm, bulk densities from 60 kg·m(-3) to 180 kg·m(-3), and mean temperatures from 100 K to 340 K. The analysis repetitively fits six models to the individual data sets. The most general form of the nested set of multilinear models used is given in the following equation: [Formula: see text]where λ(ρ,T) is the predicted thermal conductivity (W·m(-1)·K(-1)), ρ is the bulk density (kg·m(-3)), T is the mean temperature (K) and ai (for i = 1, 2, … 6) are the regression coefficients. The least squares fit results for each model across all data sets are analyzed using both graphical and analytic techniques. The prevailing generic model for the majority of data sets is the bilinear model in ρ and T. [Formula: see text] One data set supports the inclusion of a cubic temperature term and two data sets with low-temperature data support the inclusion of an exponential term in T to improve the model predictions. Physical interpretations of the model function terms are described. Recommendations for future renewals of SRM 1450 are provided. An Addendum provides historical background on the origin of this SRM and the influence of the SRM on external measurement programs.

  15. 2016 NIST (133Xe) and Transfer (131mXe, 133mXe, 135Xe) Calibration Report

    Energy Technology Data Exchange (ETDEWEB)

    Robinson, Troy A. [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2017-03-01

    A significantly improved calibration of the High Purity Germanium detectors used by the Idaho National Laboratory Noble Gas Laboratory was performed during the annual NIST calibration. New sample spacers provide reproducible and secure support of samples at distances of 4, 12, 24, 50 and 100 cm. Bean, 15mL and 50mL Schlenk tube geometries were calibrated. Also included in this year’s calibration was a correlation of detector dead-time with sample activity that can be used to predict the schedule of counting the samples at each distance for each geometry. This schedule prediction will help staff members set calendar reminders so that collection of calibration data at each geometry will not be missed. This report also correlates the counting efficiencies between detectors, so that if the counting efficiency on one detector is not known, it can be estimated from the same geometry on another detector.

  16. DELAMINATION AND XRF ANALYSIS OF NIST LEAD IN PAINT FILM STANDARDS

    Science.gov (United States)

    The objectives of this protocol were to remove the laminate coating from lead paint film standards acquired from NIST by means of surface heating. The average XRF value did not change after removal of the polymer coating suggesting that this protocol is satisfactory for renderin...

  17. Eulerian–Lagrangian RANS Model Simulations of the NIST Turbulent Methanol Spray Flame

    NARCIS (Netherlands)

    Zhu, Shanglong; Roekaerts, Dirk; Pozarlik, Artur; Meer, van der Theo

    2015-01-01

    A methanol spray flame in a combustion chamber of the NIST was simulated using an Eulerian–Lagrangian RANS model. Experimental data and previous numerical investigations by other researchers on this flame were analyzed to develop methods for more comprehensive model validation. The inlet boundary co

  18. NIST ThermoData Engine: Extension to Solvent Design and Propagation of Uncertainties for Process Simulation

    DEFF Research Database (Denmark)

    Diky, Vladimir; Chirico, Robert D.; Muzny, Chris;

    ThermoData Engine (TDE, NIST Standard Reference Databases 103a and 103b) is the first product that implements the concept of Dynamic Data Evaluation in the fields of thermophysics and thermochemistry, which includes maintaining the comprehensive and up-to-date database of experimentally measured...

  19. Coronary Stent Materials and Coatings: A Technology and Performance Update.

    Science.gov (United States)

    O'Brien, Barry; Zafar, Haroon; Ibrahim, Ahmad; Zafar, Junaid; Sharif, Faisal

    2016-02-01

    This paper reviews the current state of the art for coronary stent materials and surface coatings, with an emphasis on new technologies that followed on from first-generation bare metal and drug-eluting stents. These developments have been driven mainly by the need to improve long term outcomes, including late stent thrombosis. Biodegradable drug-eluting coatings aim to address the long term effects of residual durable polymer after drug elution; the SYNERGY, BioMatrix, and Nobori stents are all promising devices in this category, with minimal polymer through the use of abluminal coatings. Textured stent surfaces have been used to attached drug directly, without polymer; the Yukon Choice and BioFreedom stents have some promising data in this category, while a hydroxyapatite textured surface has had less success. The use of drug-filled reservoirs looked promising initially but the NEVO device has experienced both technical and commercial set-backs. However this approach may eventually make it to market if trials with the Drug-Filled Stent prove to be successful. Non-pharmacological coatings such as silicon carbide, carbon, and titanium-nitride-oxide are also proving to have potential to provide better performance than BMS, without some of the longer term issues associated with DES. In terms of biological coatings, the Genous stent which promotes attachment of endothelial progenitor cells has made good progress while gene-eluting stents still have some practical challenges to overcome. Perhaps the most advancement has been in the field of biodegradable stents. The BVS PLLA device is now seeing increasing clinical use in many complex indications while magnesium stents continue to make steady advancements.

  20. Detection of Septic System Performance via Remote Sensing Technologies

    Science.gov (United States)

    Patterson, A. H.; Kuszmaul, J. S.; Harvey, C.

    2005-05-01

    Failing and improperly managed septic systems can affect water quality in their environs and cause health problems for individuals or community residents. When unchecked, failing systems can allow disease-causing pathogens to enter groundwater aquifers and pollute surface waters, contaminating drinking water, recreational waterways, and fishing grounds. Early detection of septic system leakage and failure can limit the extent of these problems. External symptoms which occur over an improperly functioning septic system can include lush or greener growth of vegetation, distress of vegetation, excessive soil moisture levels, or pooling of surface effluent. The use of remote sensing technologies coupled with attainable permit records to successfully identify these features could enable the appropriate agencies to target problem areas without extensive field inspection. High-resolution, airborne imagery was identified as having the potential to detect relative changes in soil moisture, to delineate individual leach fields, and to locate effluent discharges into water bodies. In addition, vegetation patterns responding to nutrient-rich effluent and increased soil moisture could be examined using a vegetation index. Both thermal- and color-infrared imagery were acquired for a study area in Jackson County, Mississippi, adjacent to the Gulf of Mexico. Within this coastal neighborhood known to have significant septic system failures, over 50 volunteer residents supplied information regarding the function of their systems and access to their property. Following data collection, regression methods were used to nominate the major indicators of malfunctioning systems. A ranking system for the "level of function" was derived from these analyses. A model was created which inputs data from attainable records and imagery analysis and outputs a predicted level of septic system function. The end product of this research will permit evaluation of septic system performance to be

  1. Technology Performance Report: Duke Energy Notrees Wind Storage Demonstration Project

    Energy Technology Data Exchange (ETDEWEB)

    Wehner, Jeff [Duke Energy Renewables, Charlotte, NC (United States); Mohler, David [Duke Energy Renewables, Charlotte, NC (United States); Gibson, Stuart [Duke Energy Renewables, Charlotte, NC (United States); Clanin, Jason [Duke Energy Renewables, Charlotte, NC (United States); Faris, Don [Duke Energy Renewables, Charlotte, NC (United States); Hooker, Kevin [Duke Energy Renewables, Charlotte, NC (United States); Rowand, Michael [Duke Energy Renewables, Charlotte, NC (United States)

    2015-11-01

    Duke Energy Renewables owns and operates the Notrees Wind Farm in west Texas’s Ector and Winkler counties. The wind farm, which was commissioned in April 2009, has a total capacity of 152.6 MW generated by 55 Vestas V82 turbines, one Vestas 1-V90 experimental turbine, and 40 GE 1.5-MW turbines. The Vestas V82 turbines have a generating capacity of 1.65 MW each, the Vestas V90 turbine has a generating capacity of 1.86 MW, and the GE turbines have a generating capacity of 1.5 MW each. The objective of the Notrees Wind Storage Demonstration Project is to validate that energy storage increases the value and practical application of intermittent wind generation and is commercially viable at utility scale. The project incorporates both new and existing technologies and techniques to evaluate the performance and potential of wind energy storage. In addition, it could serve as a model for others to adopt and replicate. Wind power resources are expected to play a significant part in reducing greenhouse gas emissions from electric power generation by 2030. However, the large variability and intermittent nature of wind presents a barrier to integrating it within electric markets, particularly when competing against conventional generation that is more reliable. In addition, wind power production often peaks at night or other times when demand and electricity prices are lowest. Energy storage systems can overcome those barriers and enable wind to become a valuable asset and equal competitor to conventional fossil fuel generation.

  2. Results and Systematic Studies of the UCN Lifetime Experiment at NIST

    Science.gov (United States)

    Huffer, Craig Reeves

    The neutron beta-decay lifetime is important in understanding weak interactions in the framework of the Standard Model, and it is an input to nuclear astrophysics and Big Bang Nucleosynthesis. Current measurements of the neutron beta-decay lifetime disagree, which has motivated additional experiments that are sensitive to different sets of systematic effects. An effort continues at the NIST Center for Neutron Research (NCNR) to improve the statistical and systematic limitations of an experiment to measure the neutron beta-decay lifetime using magnetically trapped UCN. In the experiment, a monoenergetic 0:89 nm cold neutron is incident on a superfluid 4He target within the minimum field region of an Ioffe type magnetic trap. Some of the neutrons are subsequently downscattered by single phonons in the helium to low energies (≈ 200 neV), and those in the appropriate spin state become trapped. The inverse process, upscattering of UCN, is suppressed by the low phonon density in the transported out of the cell to PMTs operated at room temperature. With this method, the decay of the UCN population can be monitored in situ. The apparatus, analysis, data, and systematics will be discussed. After accounting for the systematic effects the measured lifetime disagrees with the current PDG mean neutron beta-decay lifetime by about 9 of our standard deviations, which is a strong indication of unaccounted for systematic effects. Additional 3He contamination will be shown to be the most likely candidate for the additional systematic shift, which motivated the commissioning and initial operation of a heat flush purifier for purifying additional 4He. This work ends with a description of the 4He purifier and its performance.

  3. Coupling new technologies and methodologies for performance improvement.

    Science.gov (United States)

    Monge, Paul

    2007-01-01

    Radiology is a pivotal part of the patient's experience within a healthcare organization and has traditionally embraced new technologies. It is now time to embrace new management methodologies. With the changing winds in reimbursement, activity-based methods (ABC and ABM) will assist us to maximize our resources, reduce costs, and increase our efficiencies to maintain the quality of care. We have embraced new technologies, but we have implemented them on top of old processes. Without embracing new methodologies we may never maximize our new technology.

  4. Impact of end effector technology on telemanipulation performance

    Science.gov (United States)

    Bejczy, A. K.; Szakaly, Z.; Ohm, T.

    1990-01-01

    Generic requirements for end effector design are briefly summarized as derived from generic functional and operational requirements. Included is a brief summary of terms and definitions related to end effector technology. The second part contains a brief overview of end effector technology work as JPL during the past ten years, with emphasis on the evolution of new mechanical, sensing and control capabilities of end effectors. The third and major part is devoted to the description of current end effector technology. The ongoing work addresses mechanical, sensing and control details with emphasis on mechanical ruggedness, increased resolution in sensing, and close electronic and control integration with overall telemanipulator control system.

  5. Field Validation of Visual Cleaning Performance Indicator (VCPI) Technology

    Science.gov (United States)

    2007-08-31

    test panels. Panels sets included 2024-T3 aluminum alloy sheet (Air Force platform), and primer coated HY80 steel alloy (Navy platform). 1. Weight...Cleaning Petfmmance Indicator (VCPI) tedmology as a means to verify surface cleanliness on aluminum and painted steel alloys. The VCPI technology...the surface cleanliness of unpainted structures fabricated from aluminum and steel alloys. In concept, the VCPI technology represents an innovative

  6. Recovery Act: Electrochromic Glazing Technology: Improved Performance, Lower Price

    Energy Technology Data Exchange (ETDEWEB)

    Burdis, Mark; Sbar, Neil

    2012-06-30

    The growing dependency of the US on energy imports and anticipated further increases in energy prices reinforce the concerns about meeting the energy demand in the future and one element of a secure energy future is conservation. It is estimated that the buildings sector represents 40% of the US's total energy consumption. And buildings produce as much as one third of the greenhouse gas emissions primarily through fossil fuel usage during their operational phase. A significant fraction of this energy usage is simply due to inefficient window technology. Electrochromic (EC) windows allow electronic control of their optical properties so that the transparency to light can be adjusted from clear to dark. This ability to control the amount of solar energy allowed into the building can be advantageously used to minimize lighting, heating and air conditioning costs. Currently, the penetration of EC windows into the marketplace is extremely small, and consequently there is a huge opportunity for energy savings if this market can be expanded. In order to increase the potential energy savings it is necessary to increase the quantity of EC windows in operation. Additionally, any incremental improvement in the energy performance of each window will add to the potential energy savings. The overall goals of this project were therefore to improve the energy performance and lower the cost of dynamic (EC) smart windows for residential and commercial building applications. This project is obviously of benefit to the public by addressing two major areas: lowering the cost and improving the energy performance of EC glazings. The high level goals for these activities were: (i) to improve the range between the clear and the tinted state, (ii) reduce the price of EC windows by utilizing lower cost materials, (iii) lowering the U-Value1 SAGE Electrochromics Inc. is the only company in the US which has a track record of producing EC windows, and presently has a small operational

  7. Recovery Act: Electrochromic Glazing Technology: Improved Performance, Lower Price

    Energy Technology Data Exchange (ETDEWEB)

    Burdis, Mark; Sbar, Neil

    2012-06-30

    The growing dependency of the US on energy imports and anticipated further increases in energy prices reinforce the concerns about meeting the energy demand in the future and one element of a secure energy future is conservation. It is estimated that the buildings sector represents 40% of the US's total energy consumption. And buildings produce as much as one third of the greenhouse gas emissions primarily through fossil fuel usage during their operational phase. A significant fraction of this energy usage is simply due to inefficient window technology. Electrochromic (EC) windows allow electronic control of their optical properties so that the transparency to light can be adjusted from clear to dark. This ability to control the amount of solar energy allowed into the building can be advantageously used to minimize lighting, heating and air conditioning costs. Currently, the penetration of EC windows into the marketplace is extremely small, and consequently there is a huge opportunity for energy savings if this market can be expanded. In order to increase the potential energy savings it is necessary to increase the quantity of EC windows in operation. Additionally, any incremental improvement in the energy performance of each window will add to the potential energy savings. The overall goals of this project were therefore to improve the energy performance and lower the cost of dynamic (EC) smart windows for residential and commercial building applications. This project is obviously of benefit to the public by addressing two major areas: lowering the cost and improving the energy performance of EC glazings. The high level goals for these activities were: (i) to improve the range between the clear and the tinted state, (ii) reduce the price of EC windows by utilizing lower cost materials, (iii) lowering the U-Value1 SAGE Electrochromics Inc. is the only company in the US which has a track record of producing EC windows, and presently has a small operational

  8. Pecan Street Grid Demonstration Program. Final technology performance report

    Energy Technology Data Exchange (ETDEWEB)

    None, None

    2015-02-10

    This document represents the final Regional Demonstration Project Technical Performance Report (TPR) for Pecan Street Inc.’s (Pecan Street) Smart Grid Demonstration Program, DE-OE-0000219. Pecan Street is a 501(c)(3) smart grid/clean energy research and development organization headquartered at The University of Texas at Austin (UT). Pecan Street worked in collaboration with Austin Energy, UT, Environmental Defense Fund (EDF), the City of Austin, the Austin Chamber of Commerce and selected consultants, contractors, and vendors to take a more detailed look at the energy load of residential and small commercial properties while the power industry is undergoing modernization. The Pecan Street Smart Grid Demonstration Program signed-up over 1,000 participants who are sharing their home or businesses’s electricity consumption data with the project via green button protocols, smart meters, and/or a home energy monitoring system (HEMS). Pecan Street completed the installation of HEMS in 750 homes and 25 commercial properties. The program provided incentives to increase the installed base of roof-top solar photovoltaic (PV) systems, plug-in electric vehicles with Level 2 charging, and smart appliances. Over 200 participants within a one square mile area took advantage of Austin Energy and Pecan Street’s joint PV incentive program and installed roof-top PV as part of this project. Of these homes, 69 purchased or leased an electric vehicle through Pecan Street’s PV rebate program and received a Level 2 charger from Pecan Street. Pecan Street studied the impacts of these technologies along with a variety of consumer behavior interventions, including pricing models, real-time feedback on energy use, incentive programs, and messaging, as well as the corresponding impacts on Austin Energy’s distribution assets.The primary demonstration site was the Mueller community in Austin, Texas. The Mueller development, located less than three miles from the Texas State Capitol

  9. Development of an Expanded, High Reliability Cost and Performance Database for In Situ Remediation Technologies

    Science.gov (United States)

    2016-03-01

    large investment in groundwater remediation technologies more effective, end-users need quantitative, accurate, and reliable performance and cost ... technologies . The overall objective of this work was to develop a comprehensive remediation performance and cost database. N/A U U U UU 42 Travis...end-users need quantitative, accurate, and reliable performance and cost data for commonly used remediation technologies . While the data from an

  10. Does external technology acquisition determine export performance? Evidence from Chinese manufacturing firms

    DEFF Research Database (Denmark)

    Wang, Yuandi; Cao, Wei; Zhou, Zhao

    2013-01-01

    Although technology profile has been one of the key determinants of firms’ export performance in the international business literature, most research has focused on only the role of internal technology efforts rather than the role of external technology. This study thus aims to extend our...... understanding of the determinants of export performance by examining the impact of the inter-organizational dimension of innovation strategy to export performance, which has been ignored in the prevailing “strategy tripod” perspective of exporting research. This study is based on a sample of 141 Chinese...... indigenous manufacturing firms that engaged in inward technology licensing between 2000 and 2003. The empirical results indicate that external technology acquisitions positively influence Chinese firms’ export performance. Moreover the exporting performance of using external technology varies depending...

  11. Measuring Information Technology Performance: Operational Efficiency and Operational Effectiveness

    Science.gov (United States)

    Moore, Annette G.

    2012-01-01

    This dissertation provides a practical approach for measuring operational efficiency and operational effectiveness for IT organizations introducing the ITIL process framework. The intent of the study was to assist Chief Information Officers (CIOs) in explaining the impact of introducing the Information Technology Infrastructure Library (ITIL)…

  12. Information Technology and Firm Performance: The Role of Innovation

    NARCIS (Netherlands)

    Zand, F.

    2011-01-01

    There is an essential quest in the literature to open up the “black box” of Information Technology (IT) by identifying and explaining how and why IT creates value for the firm. The present dissertation is an attempt to clarify the role of innovation in the process of value creation from IT investmen

  13. Measuring Information Technology Performance: Operational Efficiency and Operational Effectiveness

    Science.gov (United States)

    Moore, Annette G.

    2012-01-01

    This dissertation provides a practical approach for measuring operational efficiency and operational effectiveness for IT organizations introducing the ITIL process framework. The intent of the study was to assist Chief Information Officers (CIOs) in explaining the impact of introducing the Information Technology Infrastructure Library (ITIL)…

  14. Development of Key Performance Indicators for the Engineering Technology Education Programs in Taiwan

    Science.gov (United States)

    Lee, Lung-Sheng; Lai, Chun-Chin

    2004-01-01

    In comparison with engineering, engineering technology is more practical and purposeful. The engineering technology education programs in Taiwan have been mainly offered in 56 universities/colleges of technology (UTs/CTs) and are anticipated to continuously improve their performance to prepare quality engineering technologists. However, it is…

  15. Assessment of the Impact of Smart Board Technology System Use on Student Learning, Satisfaction, and Performance

    Science.gov (United States)

    Warnock, Stuart H.; Boykin, Nancy J.; Tung, Wei Chih

    2011-01-01

    Literature on educational technology touts its potential for enhancing student outcomes such as learning, satisfaction, and performance. But are these benefits universal and do they apply to all applications and/or forms of educational technology? This study focuses on one such system, the Smart Board Technology System (SBTS) and the impact its…

  16. Overview of the NIST Materials Science and Engineering Laboratory

    Science.gov (United States)

    2010-08-01

    mechanical routes to weakened products were identified in polybenzoxazole (Zylon) fibers . [This work included testing on materials which had failed...to characterize the processing, structure, mechanics and long-term reliability of high performance polymeric fibers used for ballistic protection...Apparatus, modified for fiber testing •Measurement techniques and instrumentation for characterizing next generation hybrid materials which

  17. The MITLL NIST LRE 2015 Language Recognition System

    Science.gov (United States)

    2016-05-06

    Speaker Verification Using Adapted Gaussian Mixture Models”, Digital Signal Processing Review Journal , January 2000. [4] Tom Ko, Vijayaditya Peddinti...signal to avoid digital zeros.  Mel-scale filterbank analysis is performed over the band 300-3140 Hz, resulting in 24 log-filterbank energies. RASTA

  18. Construction and Research of Evaluation Indicator System for Technological Innovation Performance

    Institute of Scientific and Technical Information of China (English)

    Xiaolang; LI; Ying; LIANG; Boli; LU

    2013-01-01

    In view of sci-tech innovation and innovation-driving requirements of Chinese President Xi Jinping,it is necessary to establish a complete evaluation indicator system for technological innovation performance in Guizhou Province,to accurately evaluate development situation of technological innovation in Guizhou Province,promote close connection of science and technology with economy,and boost rapid development of national economy. In Guizhou Province,there is still no complete evaluation indicator system for technological innovation performance, so it is impossible to comprehensively reflect its technological innovation situation. On the basis of analyzing regional technological innovation and development of Guizhou Province,this paper presents evaluation principles,analysis framework and evaluation methods and gives countermeasures and recommendations for evaluation indicator system for technological innovation performance in Guizhou Province.

  19. 78 FR 36547 - Technological Advisory Council Recommendation for Improving Receiver Performance

    Science.gov (United States)

    2013-06-18

    ... COMMISSION Technological Advisory Council Recommendation for Improving Receiver Performance AGENCY: Federal... recommendations on avoiding obstacles posed by receiver performance to making spectrum available for new services... paper and its recommendations to help determine what next steps may be appropriate. The...

  20. FY 1995 Blue Book: High Performance Computing and Communications: Technology for the National Information Infrastructure

    Data.gov (United States)

    Networking and Information Technology Research and Development, Executive Office of the President — The Federal High Performance Computing and Communications HPCC Program was created to accelerate the development of future generations of high performance computers...

  1. Neutron Transport Simulations for NIST Neutron Lifetime Experiment

    Science.gov (United States)

    Li, Fangchen; BL2 Collaboration Collaboration

    2016-09-01

    Neutrons in stable nuclei can exist forever; a free neutron lasts for about 15 minutes on average before it beta decays to a proton, an electron, and an antineutrino. Precision measurements of the neutron lifetime test the validity of weak interaction theory and provide input into the theory of the evolution of light elements in the early universe. There are two predominant ways of measuring the neutron lifetime: the bottle method and the beam method. The bottle method measures decays of ultracold neutrons that are stored in a bottle. The beam method measures decay protons in a beam of cold neutrons of known flux. An improved beam experiment is being prepared at the National Institute of Science and Technology (Gaithersburg, MD) with the goal of reducing statistical and systematic uncertainties to the level of 1 s. The purpose of my studies was to develop computer simulations of neutron transport to determine the beam collimation and study the neutron distribution's effect on systematic effects for the experiment, such as the solid angle of the neutron flux monitor. The motivation for the experiment and the results of this work will be presented. This work was supported, in part, by a Grant to Gettysburg College from the Howard Hughes Medical Institute through the Precollege and Undergraduate Science Education Program.

  2. SURFACTANT SPRAY: A NOVEL TECHNOLOGY TO IMPROVE FLOTATION DEINKING PERFORMANCE

    Energy Technology Data Exchange (ETDEWEB)

    Yulin Deng; Junyong Zhu

    2004-01-31

    Based on the fundamental understanding of ink removal and fiber loss mechanism in flotation deinking process, we developed this innovative technology using surfactant spray to improve the ink removal efficiency, reduce the water and fiber loss, reduce the chemical consumption and carry over in the flotation deinking. The innovative flotation deinking process uses a spray to deliver the frothing agent during flotation deinking to control several key process variables. The spray can control the foam stability and structure and modify the fluid dynamics to reduce the fibers entrapped in the froth layer. The froth formed at the top part of the flotation column will act as a physical filter to prevent the penetration of frothing agent into the pulp suspension to eliminate fiber contamination and unfavorable deinking surface chemistry modification due to surfactant adsorption on the fiber surface. Because of the filter effect, frothing agents will be better utilized. Under the sponsorships of the US Dept. of Energy (DOE) and the member companies of the Institute of Paper Science and Technology, we studied the chem-mechanical mechanism of surfactant spray for flotation deinking using different furnishes, chemicals, and flotation devices in the past four years. In the final year of the project, we successfully conducted mill trials at Abitibi-Consolidated, Inc., Snowflake paper recycling operation of 100% mixture of ONP/OMG. Results from laboratory, pilot-plant and mill trials indicated that surfactant spray technology can significantly reduce fiber loss in flotation deinking. It can be concluded that paper industry can profit greatly when this technology is commercialized in flotation deinking mills.

  3. An Atomic Abacus: Trapped ion quantum computing experiments at NIST

    Science.gov (United States)

    Demarco, Brian

    2003-03-01

    Trapped atomic ions are an ideal system for exploring quantum information science because deterministic state preparation and efficient state detection are possible and coherent manipulation of atomic systems is relatively advanced. In our experiment, a few singly charged Be ions are confined by static and radio-frequency electric fields in a micro-machined linear Paul trap. The internal and motional states of the ions are coherently manipulated using applied laser light. Our current work focuses on demonstrating the necessary ingredients to produce a scalable quantum computing scheme and on simplifying and improving quantum logic gates. I will speak about a new set of experiments that was made possible by recent improvements in trap technology. A novel trap with multiple trapping regions was used to demonstrate the first steps towards a fully scalable quantum computing scheme. Single ions were ``shuttled" between trapping regions without disturbing the ion's motional and internal state, and two ions were separated from a single to two different trapping zones. Improvements in the trap manufacturing process has led to a reduction of nearly two orders of magnitude in the ion's motional heating rate, making possible two new improved logic gates. The first gate utilizes the wave-packet nature of the ions to tune the laser-atom interaction and achieve a controlled-NOT gate between a single ion's spin and motional states. The second, a two-ion phase gate, uses phase-space dynamics to produce a state-sensitive geometric phase. I will end with a quick look at experiments using a Mg ion to sympathetically cool a simultaneously trapped Be ion and a glimpse of the next generation of ions traps currently under construction.

  4. Study of the Performance and Characteristics of U.S. Academic Research Institution Technology Commercialization (ARITC)

    Science.gov (United States)

    Kim, Jisun

    2012-01-01

    This dissertation aims to provide a better understanding of the technology licensing practices of academic research institutions. The study identifies time durations in licensing and incorporates these into a model to evaluate licensing performance. Performance is measured by the efficiency of an institution's technology licensing process and…

  5. Femtosecond Laser Ablation Multicollector ICPMS Analysis of Uranium Isotopes in NIST Glass

    Energy Technology Data Exchange (ETDEWEB)

    Duffin, Andrew M.; Springer, Kellen WE; Ward, Jesse D.; Jarman, Kenneth D.; Robinson, John W.; Endres, Mackenzie C.; Hart, Garret L.; Gonzalez, Jhanis J.; Oropeza, Dayana; Russo, Richard; Willingham, David G.; Naes, Benjamin E.; Fahey, Albert J.; Eiden, Gregory C.

    2015-02-06

    We have utilized femtosecond laser ablation coupled to multi-collector inductively couple plasma mass spectrometry to measure the uranium isotopic content of NIST 61x (x=0,2,4,6) glasses. The uranium content of these glasses is a linear two-component mixing between isotopically natural uranium and the isotopically depleted spike used in preparing the glasses. Laser ablation results match extremely well, generally within a few ppm, with solution analysis following sample dissolution and chemical separation. In addition to isotopic data, sample utilization efficiency measurements indicate that over 1% of ablated uranium atoms reach a mass spectrometer detector, making this technique extremely efficient. Laser sampling also allows for spatial analysis and our data indicate that rare uranium concentration inhomogeneities exist in NIST 616 glass.

  6. Final results of bilateral comparison between NIST and PTB for flows of high pressure natural gas

    Science.gov (United States)

    Mickan, B.; Toebben, H.; Johnson, A.; Kegel, T.

    2013-01-01

    In 2009 NIST developed a US national flow standard to provide traceability for flow meters used for custody transfer of pipeline quality natural gas. NIST disseminates the SI unit of flow by calibrating a customer flow meter against a parallel array of turbine meter working standards, which in turn are traceable to a pressure-volume-temperature-time (PVTt) primary standard. The calibration flow range extends from 0.125 actual m3/s to 9 actual m3/s with an expanded uncertainty as low as 0.22% at high flows, and increasing to almost 0.40% at the lowest flows. Details regarding the traceability chain and uncertainty analysis are documented in prior publications. The current manuscript verifies NIST's calibration uncertainty via a bilateral comparison with the German National Metrology Institute PTB. The results of the bilateral are linked to the 2006 key comparison results between three EURAMET national metrology institutes (i.e., PTB, VSL and LNE). Linkage is accomplished in spite of using a different transfer standard in the bilateral versus the key comparison. A mathematical proof is included that demonstrates that the relative difference between a laboratory's measured flow and the key comparison reference value is independent of the transfer package for most flow measurement applications. The bilateral results demonstrate that NIST's natural gas flow measurements are within their specified uncertainties and are equivalent to those of the EURAMET National Metrology Institutes. Main text. To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database kcdb.bipm.org/. The final report has been peer-reviewed and approved for publication by the CCM, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).

  7. JCPDS-ICDD Research Associateship (Cooperative Program with NBS/NIST)

    OpenAIRE

    Wong-Ng, W.; McMurdie, H. F.; Hubbard, C. R.; Mighell, A. D.

    2001-01-01

    The Research Associateship program of the Joint Committee on Powder Diffraction-International Centre for Diffraction Data (JCPDS-ICDD, now known as the ICDD) at NBS/NIST was a long standing (over 35 years) successful industry-government cooperation. The main mission of the Associateship was to publish high quality x-ray reference patterns to be included in the Powder Diffraction File (PDF). The PDF is a continuing compilation of patterns gathered from many sources, compiled and published by t...

  8. Towards Improving the NIST Fingerprint Image Quality (NFIQ) Algorithm (Extended Version)

    CERN Document Server

    Merkle, Johannes; Bausinger, Oliver; Breitenstein, Marco; Elwart, Kristina; Nuppeney, Markus

    2010-01-01

    The NIST Fingerprint Image Quality (NFIQ) algorithm has become a standard method to assess fingerprint image quality. However, in many applications a more accurate and reliable assessment is desirable. In this publication, we report on our efforts to optimize the NFIQ algorithm by a re-training of the underlying neural network based on a large fingerprint image database. Although we only achieved a marginal improvement, our work has revealed several areas for potential optimization.

  9. NIST Accelerator Facilities And Programs In Support Of Industrial Radiation Research

    Science.gov (United States)

    Bateman, F. B.; Desrosiers, M. F.; Hudson, L. T.; Coursey, B. M.; Bergstrom, P. M.; Seltzer, S. M.

    2003-08-01

    NIST's Ionizing Radiation Division maintains and operates three electron accelerators used in a number of applications including waste treatment and sterilization, radiation hardness testing, detector calibrations and materials modification studies. These facilities serve a large number of governmental, academic and industrial users as well as an active intramural research program. They include a 500 kV cascaded-rectifier accelerator, a 2.5 MV electron Van de Graaff accelerator and a 7 to 32 MeV electron linac, supplying beams ranging in energy from a few keV up to 32 MeV. In response to the recent anthrax incident, NIST along with the US Postal Service and the Armed Forces Radiobiology Research Institute (AFRRI) are working to develop protocols and testing procedures for the USPS mail sanitization program. NIST facilities and personnel are being employed in a series of quality-assurance measurements for both electron- and photon-beam sanitization. These include computational modeling, dose verification and VOC (volatile organic compounds) testing using megavoltage electron and photon sources.

  10. SPS and alternative technologies cost and performance evaluations

    Science.gov (United States)

    Samsa, M. E.

    1980-01-01

    Cost estimates for production of the electrical energy needed in the early twenty-first century are provided. Costs and performance of the Satellite Power System are compared with alternative methods of producing electrical energy.

  11. Detailed Performance Calculations: Georgia Institute of Technology Group, Appendix E

    Science.gov (United States)

    1984-01-01

    Conditions for system intercomparison; signal strength evaluation; background total source strength; signal-to-noise ratio; performance of present Georgia Tech system; and special comments on current Georgia Tech system are discussed.

  12. Analysis of Pipeline Steel Corrosion Data From NBS (NIST) Studies Conducted Between 1922-1940 and Relevance to Pipeline Management.

    Science.gov (United States)

    Ricker, Richard E

    2010-01-01

    Between 1911 and 1984, the National Bureau of Standards (NBS) conducted a large number of corrosion studies that included the measurement of corrosion damage to samples exposed to real-world environments. One of these studies was an investigation conducted between 1922 and 1940 into the corrosion of bare steel and wrought iron pipes buried underground at 47 different sites representing different soil types across the Unites States. At the start of this study, very little was known about the corrosion of ferrous alloys underground. The objectives of this study were to determine (i) if coatings would be required to prevent corrosion, and (ii) if soil properties could be used to predict corrosion and determine when coatings would be required. While this study determined very quickly that coatings would be required for some soils, it found that the results were so divergent that even generalities based on this data must be drawn with care. The investigators concluded that so many diverse factors influence corrosion rates underground that planning of proper tests and interpretation of the results were matters of considerable difficulty and that quantitative interpretations or extrapolations could be done "only in approximate fashion" and attempted only in the "restricted area" of the tests until more complete information is available. Following the passage of the Pipeline Safety Improvement Act in 2002 and at the urging of the pipeline industry, the Office of Pipeline Safety of the U.S. Department of Transportation approached the National Institute of Standards and Technology (NBS became NIST in 1988) and requested that the data from this study be reexamined to determine if the information handling and analysis capabilities of modern computers and software could enable the extraction of more meaningful information from these data. This report is a summary of the resulting investigations. The data from the original NBS studies were analyzed using a variety of

  13. Analysis of Pipeline Steel Corrosion Data From NBS (NIST) Studies Conducted Between 1922–1940 and Relevance to Pipeline Management

    Science.gov (United States)

    Ricker, Richard E.

    2010-01-01

    Between 1911 and 1984, the National Bureau of Standards (NBS) conducted a large number of corrosion studies that included the measurement of corrosion damage to samples exposed to real-world environments. One of these studies was an investigation conducted between 1922 and 1940 into the corrosion of bare steel and wrought iron pipes buried underground at 47 different sites representing different soil types across the Unites States. At the start of this study, very little was known about the corrosion of ferrous alloys underground. The objectives of this study were to determine (i) if coatings would be required to prevent corrosion, and (ii) if soil properties could be used to predict corrosion and determine when coatings would be required. While this study determined very quickly that coatings would be required for some soils, it found that the results were so divergent that even generalities based on this data must be drawn with care. The investigators concluded that so many diverse factors influence corrosion rates underground that planning of proper tests and interpretation of the results were matters of considerable difficulty and that quantitative interpretations or extrapolations could be done “only in approximate fashion” and attempted only in the “restricted area” of the tests until more complete information is available. Following the passage of the Pipeline Safety Improvement Act in 2002 and at the urging of the pipeline industry, the Office of Pipeline Safety of the U.S. Department of Transportation approached the National Institute of Standards and Technology (NBS became NIST in 1988) and requested that the data from this study be reexamined to determine if the information handling and analysis capabilities of modern computers and software could enable the extraction of more meaningful information from these data. This report is a summary of the resulting investigations. The data from the original NBS studies were analyzed using a variety of

  14. The Use of Neural Network Technology to Model Swimming Performance

    Science.gov (United States)

    Silva, António José; Costa, Aldo Manuel; Oliveira, Paulo Moura; Reis, Victor Machado; Saavedra, José; Perl, Jurgen; Rouboa, Abel; Marinho, Daniel Almeida

    2007-01-01

    The aims of the present study were: to identify the factors which are able to explain the performance in the 200 meters individual medley and 400 meters front crawl events in young swimmers, to model the performance in those events using non-linear mathematic methods through artificial neural networks (multi-layer perceptrons) and to assess the neural network models precision to predict the performance. A sample of 138 young swimmers (65 males and 73 females) of national level was submitted to a test battery comprising four different domains: kinanthropometric evaluation, dry land functional evaluation (strength and flexibility), swimming functional evaluation (hydrodynamics, hydrostatic and bioenergetics characteristics) and swimming technique evaluation. To establish a profile of the young swimmer non-linear combinations between preponderant variables for each gender and swim performance in the 200 meters medley and 400 meters font crawl events were developed. For this purpose a feed forward neural network was used (Multilayer Perceptron) with three neurons in a single hidden layer. The prognosis precision of the model (error lower than 0.8% between true and estimated performances) is supported by recent evidence. Therefore, we consider that the neural network tool can be a good approach in the resolution of complex problems such as performance modeling and the talent identification in swimming and, possibly, in a wide variety of sports. Key pointsThe non-linear analysis resulting from the use of feed forward neural network allowed us the development of four performance models.The mean difference between the true and estimated results performed by each one of the four neural network models constructed was low.The neural network tool can be a good approach in the resolution of the performance modeling as an alternative to the standard statistical models that presume well-defined distributions and independence among all inputs.The use of neural networks for sports

  15. Research of Entropy-Based Overall Performance Measurement Model of Enterprises Technology Alliance

    Institute of Scientific and Technical Information of China (English)

    ZHANG Jian

    2006-01-01

    The performance measurement of enterprise technology alliances is complex. In this article, evaluation mechanism of entropy has been applied to it. Above all, performance connotation of enterprise technology alliance is defined from the aspect of self-organization theory. Then, on dynamic and systema -tical view, an entropy-based overall performance measurement model for technology alliance is established, using its life-cycle as the principal line, which includes initial condition evaluation, process evaluation as well as benefit evaluation. Finally, a case study is carried out to the demonstration of that model. The author believes that an improved performance measurement model based on alliance life-cycle would be practicability to alliance.

  16. THE USE OF NEURAL NETWORK TECHNOLOGY TO MODEL SWIMMING PERFORMANCE

    Directory of Open Access Journals (Sweden)

    António José Silva

    2007-03-01

    Full Text Available The aims of the present study were: to identify the factors which are able to explain the performance in the 200 meters individual medley and 400 meters front crawl events in young swimmers, to model the performance in those events using non-linear mathematic methods through artificial neural networks (multi-layer perceptrons and to assess the neural network models precision to predict the performance. A sample of 138 young swimmers (65 males and 73 females of national level was submitted to a test battery comprising four different domains: kinanthropometric evaluation, dry land functional evaluation (strength and flexibility, swimming functional evaluation (hydrodynamics, hydrostatic and bioenergetics characteristics and swimming technique evaluation. To establish a profile of the young swimmer non-linear combinations between preponderant variables for each gender and swim performance in the 200 meters medley and 400 meters font crawl events were developed. For this purpose a feed forward neural network was used (Multilayer Perceptron with three neurons in a single hidden layer. The prognosis precision of the model (error lower than 0.8% between true and estimated performances is supported by recent evidence. Therefore, we consider that the neural network tool can be a good approach in the resolution of complex problems such as performance modeling and the talent identification in swimming and, possibly, in a wide variety of sports

  17. Technological Innovation Management and its Role in Performance of Organizations

    Directory of Open Access Journals (Sweden)

    Laura-Diana Radu

    2012-10-01

    Full Text Available This paper aims to identify the main benefits of technological innovation in organizations and how it should be managed to ensure economic efficiency. The current level of social and economic evolution was possible only through active involvement of individuals and organizations in the innovative process. Adoption of appropriate policies and strategies at institutional, national and international level has significant impact on both the innovation process and innovation results. At company level, involvement in an innovative process depends on the financial and human resources and on the availability and interest of management and employees. The main motivating factor in adoption of technological innovation is, most often, obtaining financial benefits. This reflects itself either as a direct increase in profits, or by obtaining competitive advantage which leads, in the long run, to profits increase and achieving a favorable position on the market. Should not be neglected other motivating factors of innovation, such as compliance with environmental standards, ensuring a secure position on the market with opportunities for further expansion, reducing the cost of raw materials and / or production process, improving company image, attitude and achievements of partners in the field (competitors, suppliers, customers etc. Managers need to carefully analyze these factors and decide the manner and degree of involvement in an innovative process.

  18. Modelling diffusion feedbacks between technology performance, cost and consumer behaviour for future energy-transport systems

    Science.gov (United States)

    Tran, Martino; Brand, Christian; Banister, David

    2014-04-01

    Emerging technologies will have important impacts on sustainability objectives. Yet little is known about the explicit feedbacks between consumer behaviour and technological change, and the potential impact on mass market penetration. We use the UK as a case-study to explore the dynamic interactions between technology supply, performance, cost, and heterogeneous consumer behaviour and the resulting influence on long term market diffusion. Simulations of competing vehicle technologies indicate that petrol hybrids (HEVs) dominate the market over the long-term because they benefit from improved performance and are able to reach the steep part of the diffusion curve by 2025 while competing technologies remain in the early stages of growth and are easier to displace in the market. This is due to the cumulative build-up of stock and slow fleet turnover creating inertia in the technological system. Consequently, it will be difficult to displace incumbent technologies because of system inertia, cumulative growth in stock, long operational life, and consumer risk aversion to new unproven technologies. However, when accounting for both technological and behavioural change, simulations indicate that if investment can reach 30-40% per annum growth in supply, combined with steady technology improvements, and more sophisticated agent decision making such as accounting for full technology lifecycle cost and performance, full battery electric vehicles could displace the incumbent system by 2050.

  19. Using Hybrid Model to Evaluate Performance of Innovation and Technology Professionals in Marine Logistics Industry

    Directory of Open Access Journals (Sweden)

    Qunzhen Qu

    2015-01-01

    Full Text Available With the development of marine logistics industry to grow, the government and corporate more and more attach importance to the performance evaluation of innovation and technology professionals. Combine the characteristics of marine logistics industry and innovative technology professionals to design a performance evaluation index of marine logistics industry in innovation and technology professionals, with the Analytic Hierarchy Process (AHP to determine the weights of the various performance indicatorsf and through the establishment of fuzzy comprehensive evaluation model to make the problems of complex performance evaluation quantification and then come to their performance evaluation results, and provide reference methods and recommendations for innovation and technology professionals in performance evaluation theory and practice of marine logistics industry.

  20. Modern Techniques and Technologies Applied to Training and Performance Monitoring.

    Science.gov (United States)

    Sands, William A; Kavanaugh, Ashley A; Murray, Steven R; McNeal, Jeni R; Jemni, Monèm

    2016-12-05

    Athlete preparation and performance continues to increase in complexity and costs. Modern coaches are shifting from reliance on personal memory, experience, and opinion to evidence from collected training load data. Training load monitoring may hold vital information for developing systems of monitoring that follow the training process with such precision that both performance prediction and day-to-day management of training become an adjunct to preparation and performance. Time series data collection and analyses in sport are still in their infancy with considerable efforts being applied in "big-data" analytics and models of the appropriate variables to monitor and methods for doing so. Training monitoring has already garnered important applications, but lacks a theoretical framework from which to develop further. As such, we propose a framework involving the following: analyses of individuals, trend analyses, rules-based analysis, and statistical process control.

  1. Measuring wildland fire fighter performance with wearable technology.

    Science.gov (United States)

    Parker, Richard; Vitalis, Antonios; Walker, Robyn; Riley, David; Pearce, H Grant

    2017-03-01

    Wildland (rural) fire fighting is a physically demanding and hazardous occupation. An observational study was conducted to explore the use of new technologies for the field study of fire fighters at wildfires and to understand the work pressures of wildland fire fighting. The research was carried out with two fire fighters at real fires wearing microphones, miniature video cameras, heart rate monitors and GPS units to record their actions and location at wildfire events. The fire fighters were exposed to high physiological workloads (heart rates of up to 180 beats per minute) and walked considerable distances at the fires. Results from this study have been used in presentations to fire fighters and non-operational fire personnel to understand the pressures fire fighters are under and how others complete the fire fighting tasks. Copyright © 2016 Elsevier Ltd. All rights reserved.

  2. Performance evaluation: discussing technology for planning and managing health worforce.

    Science.gov (United States)

    Pierantoni, Celia Regina; França, Tania; Ney, Marcia Silveira; Monteiro, Valéria Oliveira; Varella, Thereza Christina; Santos, Maria Ruth Dos; Nascimento, Dayane

    2011-12-01

    This essay presents the outcome of reflections and analyses from examining the conceptual options inherent to the methodologies of employee performance appraisal (PA) and its possible application in the health area. It sets a conceptual discussion of the area, associating and integrating knowledge from different fields - health and public administration. It promotes an intersection between public health work management and personnel management strategies. It has the purpose to generate new analyses and studies that would allow for a new approach of the management practices for performance appraisals used in companies, adapting them to meet the specificities of the health sector.

  3. Performance-Based Technology Selection Filter description report. INEL Buried Waste Integrated Demonstration System Analysis project

    Energy Technology Data Exchange (ETDEWEB)

    O`Brien, M.C.; Morrison, J.L.; Morneau, R.A.; Rudin, M.J.; Richardson, J.G.

    1992-05-01

    A formal methodology has been developed for identifying technology gaps and assessing innovative or postulated technologies for inclusion in proposed Buried Waste Integrated Demonstration (BWID) remediation systems. Called the Performance-Based Technology Selection Filter, the methodology provides a formalized selection process where technologies and systems are rated and assessments made based on performance measures, and regulatory and technical requirements. The results are auditable, and can be validated with field data. This analysis methodology will be applied to the remedial action of transuranic contaminated waste pits and trenches buried at the Idaho National Engineering Laboratory (INEL).

  4. Comparative experiments on the technological performance of disc filters

    Science.gov (United States)

    Liu, Guangrong; Jiang, Hua; Liao, Dongmei; Deng, Yingchun

    2017-06-01

    The filtration performance of JY disc filters was compared with that of Arkal disc filters when a parallel filtration system was designed under lab-scale devices. The comparisons of working and backwash performance were made for different filtration level. The experimental results showed that the two kinds of filters had similar process performance and effluent water quality under the same experimental condition. JY filter has higher filter performance index (FPI) than Arkal disc filters with the micron rating from 20 to 55μm discs, on the other hand, FPI value of JY filter has lower FPI than Arkal disc filters with the micron rating from 100 to 200μm discs. The removal rates of suspended solid(SS) for both filters vary in the range from 64% to 91.5%, moreover, the mean removal rate of SS for JY and Arkal filter was 78.2% and 79% respectively. The removal rates of turbidity were lower than 13% and the mean removal rate of turbidity was 7% for both filters. The critical backwash time and the critical backwash water loss for both filters were 5 seconds and 15 litres respectively.

  5. Novel technologies to improve the performance of biomass pyrolsis systems

    Science.gov (United States)

    Liaw, Shi-Shen

    Biomass pyrolysis is a thermochemical conversion process to convert lignocellosic materials into bio-oil, gas, and char. The bio-oil can be further refined to produce transportation fuels, high-value chemicals and heat. Although fast pyrolysis is a very promising technology for high bio-oil production yield, the reactors used have several technological problems that limit their future techno-economic viability. Current fast pyrolysis reactors use large quantities of carrier gas that reduce their thermal efficiency. The use of sand to accelerate heating rates results in serious attrition problems responsible for sand contamination of the bio-char produced. Most of the fast pyrolysis reactors currently used need to process very small particles which consume large quantities of energy in grinding. The bio-oil produced is also highly acidic and corrosive mainly due to the presence of acetic acid. The lack of a viable technology to use the acetic acid contained in these oils is a major challenge for the development of viable bio-oil refineries. The objective of this dissertation is to evaluate several technologies to improve the techno-economic viability of biomass pyrolysis systems. The main hypotheses of this dissertation are: (1) high yields of bio-oils could also be obtained by using auger pyrolysis reactors using very low volumes of carried gas and no sand as a heat carrier if the system is fed with very small particles (2) The grinding energy can be reduced if the biomass is torrefied. There are torrefaction conditions that will not affect the overall yield of pyrolysis products (3) Acetic acid produced during pyrolysis can be removed with the use of a fractional condensation system (4) The acids produced during the torrefaction and pyrolysis with the use of the fractional condensation system can be anaerobically digested to produce methane. In this dissertation, it was proved through Py-GC/MS studies that yield of most of the pyrolytic products can be explained

  6. 77 FR 25143 - Announcement of Meeting on “Developing Standard Requirements for Fatigue Performance of...

    Science.gov (United States)

    2012-04-27

    ... used in industry and developing standard requirements. Consortium planning and standard development... Institute of Standards and Technology (NIST) invites interested parties to attend a pre-consortium meeting... National Institute of Standards and Technology Announcement of Meeting on ``Developing...

  7. Milliken Clean Coal Technology Demonstration Project. Project performance summary, Clean Coal Technology Demonstration Program

    Energy Technology Data Exchange (ETDEWEB)

    None, None

    2002-11-30

    The New York State Electric & Gas Corporation (NYSEG) demonstrated a combination of technologies at its Milliken Station in Lansing, New York, designed to: (1) achieve high sulfur dioxide (SO2) capture efficiency, (2) bring nitrogen oxide (NOx) emissions into compliance with Clean Air Act Amendments of 1990 (CAAA), (3) maintain high station efficiency, and (4) eliminate waste water discharge. This project is part of the U.S. Department of Energy's (DOE) Clean Coal Technology Demonstration Program (CCTDP) established to address energy and environmental concerns related to coal use. DOE sought cost-shared partnerships with industry through five nationally competed solicitations to accelerate commercialization of the most promising advance coal-based power generation and pollution control technologies. The CCTDP, valued at over five billion dollars, has significantly leveraged federal funding by forging effective partnerships founded on sound principles. For every federal dollar invested, CCTDP participants have invested two dollars. These participants include utilities, technology developers, state governments, and research organizations. The project presented here was one of nine selected in January 1991 from 33 proposals submitted in response to the program's fourth solicitation.

  8. Milliken Clean Coal Technology Demonstration Project. Project performance summary, Clean Coal Technology Demonstration Program

    Energy Technology Data Exchange (ETDEWEB)

    None, None

    2002-11-30

    The New York State Electric & Gas Corporation (NYSEG) demonstrated a combination of technologies at its Milliken Station in Lansing, New York, designed to: (1) achieve high sulfur dioxide (SO2) capture efficiency, (2) bring nitrogen oxide (NOx) emissions into compliance with Clean Air Act Amendments of 1990 (CAAA), (3) maintain high station efficiency, and (4) eliminate waste water discharge. This project is part of the U.S. Department of Energy's (DOE) Clean Coal Technology Demonstration Program (CCTDP) established to address energy and environmental concerns related to coal use. DOE sought cost-shared partnerships with industry through five nationally competed solicitations to accelerate commercialization of the most promising advance coal-based power generation and pollution control technologies. The CCTDP, valued at over five billion dollars, has significantly leveraged federal funding by forging effective partnerships founded on sound principles. For every federal dollar invested, CCTDP participants have invested two dollars. These participants include utilities, technology developers, state governments, and research organizations. The project presented here was one of nine selected in January 1991 from 33 proposals submitted in response to the program's fourth solicitation.

  9. submitter Performance studies of CMS workflows using Big Data technologies

    CERN Document Server

    Ambroz, Luca; Grandi, Claudio

    At the Large Hadron Collider (LHC), more than 30 petabytes of data are produced from particle collisions every year of data taking. The data processing requires large volumes of simulated events through Monte Carlo techniques. Furthermore, physics analysis implies daily access to derived data formats by hundreds of users. The Worldwide LHC Computing Grid (WLCG) - an international collaboration involving personnel and computing centers worldwide - is successfully coping with these challenges, enabling the LHC physics program. With the continuation of LHC data taking and the approval of ambitious projects such as the High-Luminosity LHC, such challenges will reach the edge of current computing capacity and performance. One of the keys to success in the next decades - also under severe financial resource constraints - is to optimize the efficiency in exploiting the computing resources. This thesis focuses on performance studies of CMS workflows, namely centrallyscheduled production activities and unpredictable d...

  10. Health care interprofessional education: encouraging technology, teamwork, and team performance.

    Science.gov (United States)

    2014-04-01

    It is critical to prepare nurses for future practice to work in teams by engaging students in interprofessional education (IPE) that fosters positive attitudes toward teamwork. The purpose of this study was to examine the effects of computer-supported IPE on students’ attitudes and perceptions toward health care teamwork and team performance. A hybrid approach to IPE was used to provide students with an educational experience that combined the benefits of traditional face-to-face communication methodology with a computer-mediated platform that focused on reflection and team building. A statistically significant difference was found in students’ perceptions of team performance after engaging in computer-supported IPE. No statistically significant difference in students’ pretest–posttest composite attitude toward teamwork scores was noted; however, there was a positive trend toward improved scores.

  11. INSTRUMENTATION DEVELOPMENT, MEASUREMENT AND PERFORMANCE EVALUATION OF ENVIRONMENTAL TECHNOLOGIES

    Energy Technology Data Exchange (ETDEWEB)

    Unknown

    2001-12-31

    Many DOE applications would significantly benefit from the availability of robust and convenient instrumentation for trace-level actinide monitoring and analysis. This project focuses on developing new instrumentation for on-line or at-line monitoring for actinides with isotopic analysis capability. In addition, analytical protocols for a novel concentration method for actinides are being investigated. These efforts focus on demonstrating these techniques using uranium. In addition to its value in the analytical laboratory, the combination of a simple concentration technique with a robust isotopic monitor could provide a powerful method for addressing a number of outstanding DOE needs. Potential applications include monitors for waste water and sewage treatment systems influent and effluent, and the ability to determine the isotopic content of transuranic species in low-activity waste fractions for waste classification and product acceptance. For example, the need for improved monitoring for uranium, plutonium, and americium in treatment plant influent is clearly identified in need RF-ER11. With some additional sample pretreatment, such technology could also impact materials characterization needs by providing on-site isotopic analyses in a system that is smaller and significantly less complex than inductively coupled plasma mass spectrometry (ICP-MS).

  12. High Performance Interconnection Technology in Avionics (Short Communication

    Directory of Open Access Journals (Sweden)

    C. R. Raghunath

    2011-07-01

    Full Text Available Avionics subsystems continue to get smaller and more functional, driving the total circuit package itself to become denser, causing the printed wiring board (PWB to evolve new laminates to meet these needs. There is a continuous scope for improvement to match the requirement of wireability demand from high density and high speed integrated circuits. Development of control processing units and rapid expansion of memory device capabilities were realised by the development of large-scale integrated circuits and other electronic devices with higher integration and with new functionalities. Enormous efforts have been put on the development of the system-on-chip (SOC, where a single semiconductor chip constituting complete system is bonded on substrate. These innovations in packaging technology made a big impact on laminates used in printed circuit boards. Aircraft systems are expected to withstand disturbances due to unexpected threats. Under such situations, passengers' safety, emergency landing and timely information to pilot become of paramount importance, hence, new innovative laminate systems are being developed. Various aspects of laminates and the current developments that are taking place are facilitating scientists and engineers in selecting appropriate laminate systems, have been discussed.Defence Science Journal, 2011, 61(4, pp.354-363, DOI:http://dx.doi.org/10.14429/dsj.61.1085

  13. Knowledge-Based Parallel Performance Technology for Scientific Application Competitiveness Final Report

    Energy Technology Data Exchange (ETDEWEB)

    Malony, Allen D; Shende, Sameer

    2011-08-15

    The primary goal of the University of Oregon's DOE "œcompetitiveness" project was to create performance technology that embodies and supports knowledge of performance data, analysis, and diagnosis in parallel performance problem solving. The target of our development activities was the TAU Performance System and the technology accomplishments reported in this and prior reports have all been incorporated in the TAU open software distribution. In addition, the project has been committed to maintaining strong interactions with the DOE SciDAC Performance Engineering Research Institute (PERI) and Center for Technology for Advanced Scientific Component Software (TASCS). This collaboration has proved valuable for translation of our knowledge-based performance techniques to parallel application development and performance engineering practice. Our outreach has also extended to the DOE Advanced CompuTational Software (ACTS) collection and project. Throughout the project we have participated in the PERI and TASCS meetings, as well as the ACTS annual workshops.

  14. Tehachapi Wind Energy Storage Project - Technology Performance Report #3

    Energy Technology Data Exchange (ETDEWEB)

    Pinsky, Naum [Southern California Edison, Rosemead, CA (United States); O' Neill, Lori [Southern California Edison, Rosemead, CA (United States)

    2017-03-31

    The TSP is located at SCE’s Monolith Substation in Tehachapi, California. The 8 MW, 4 hours (32 MWh) BESS is housed in a 6,300 square foot facility and 2 x 4 MW/4.5 MVA smart inverters are on a concrete pad adjacent to the BESS facility. The project will evaluate the capabilities of the BESS to improve grid performance and assist in the integration of large-scale intermittent generation, e.g., wind. Project performance was measured by 13 specific operational uses: providing voltage support and grid stabilization, decreasing transmission losses, diminishing congestion, increasing system reliability, deferring transmission investment, optimizing renewable-related transmission, providing system capacity and resources adequacy, integrating renewable energy (smoothing), shifting wind generation output, frequency regulation, spin/non-spin replacement reserves, ramp management, and energy price arbitrage. Most of the operations either shift other generation resources to meet peak load and other electricity system needs with stored electricity, or resolve grid stability and capacity concerns that result from the interconnection of intermittent generation. SCE also demonstrated the ability of lithium ion battery storage to provide nearly instantaneous maximum capacity for supply-side ramp rate control to minimize the need for fossil fuel-powered back-up generation. The project began in October, 2010 and will continue through December, 2016.

  15. IT Balanced Scorecard Implementation to Measure Information Technology Performance on Information Technology Division of PT. Samudera Indonesia Tbk.

    Directory of Open Access Journals (Sweden)

    Mastuki

    2015-12-01

    Full Text Available The goals of this thesis were to measure the performance of information technology in the IT Division of PT. Samudera Indonesia Tbk. using IT Balanced Scorecard (IT BSC, in which from each of its perspective was breakdown into related variables used as a model of optimal measurement. The problems that will be discussed in this research consisted of finding the factors required to measure the performance of information technology in the company; determining the indicators in measuring the IT performance; understanding in how to create the optimal measurement model of IT performance and evaluating how the measurement model affected the IT performance. The compiled data through questionnaires will be analyzed using factor analysis method through five steps: problem formulation, correlation matrix, determining the number of factors, factor rotation, and factor interpretation. The result of the research showed that there were four factors affected the IT performance in PT. Samudera Indonesia Tbk. which consist of IT Competency, IT Services Ability, Business Continuity and IT Improvement. Thus, it can be concluded that those factors affected the IT performance and to obtain a good quality of IT performance, each indicator of the factors should be done to the fullest.

  16. Towards a Tool for Assessing Supply-Chain Information Performance During Implementation of New Information Technologies

    NARCIS (Netherlands)

    Denolf, J.M.; Wognum, P.M.; Trienekens, J.H.; Vorst, van der J.G.A.J.; Omta, S.W.F.

    2012-01-01

    Based on improved information performance, agro-food companies and supply chains want to enhance their production processes. It creates the necessity to implement additional information technologies. The implementation of information technologies is, however, a complex task because of the interactio

  17. The contribution of new technology to improved environmental performance in the mining industry

    Energy Technology Data Exchange (ETDEWEB)

    Parsons, A.S.; Hume, H.R. [Chamber of Mines of South Africa, Marshalltown (South Africa)

    1997-10-01

    The contribution of new technology (and of technology under development) to improved environmental performance in mining, mineral processing and disposal of mining wastes is described. While the emphasis of the article is on development in South Africa, the examples are of more general interest and application. 1 ref., 1 fig.

  18. Putting market-facing technology to work: Organizational drivers of CRM performance

    NARCIS (Netherlands)

    Saini, A.; Grewall, R.; Johnson, J.L.

    2010-01-01

    A large proportion of firms that adopt customer relationship management (CRM) technology find it challenging to integrate CRM technology into their core marketing processes and utilize CRM strategically to appreciably improve their performance. The authors conceptualize a model to understand the dri

  19. Putting market-facing technology to work: Organizational drivers of CRM performance

    NARCIS (Netherlands)

    Saini, A.; Grewall, R.; Johnson, J.L.

    2010-01-01

    A large proportion of firms that adopt customer relationship management (CRM) technology find it challenging to integrate CRM technology into their core marketing processes and utilize CRM strategically to appreciably improve their performance. The authors conceptualize a model to understand the

  20. Putting market-facing technology to work: Organizational drivers of CRM performance

    NARCIS (Netherlands)

    Saini, A.; Grewall, R.; Johnson, J.L.

    2010-01-01

    A large proportion of firms that adopt customer relationship management (CRM) technology find it challenging to integrate CRM technology into their core marketing processes and utilize CRM strategically to appreciably improve their performance. The authors conceptualize a model to understand the dri

  1. Measuring process performance within healthcare logistics - a decision tool for selecting measuring technologies

    DEFF Research Database (Denmark)

    Feibert, Diana Cordes; Jacobsen, Peter

    2015-01-01

    Performance measurement can support the organization in improving the efficiency and effectiveness of logistical healthcare processes. Selecting the most suitable technologies is important to ensure data validity. A case study of the hospital cleaning process at a public Danish hospital...

  2. When does inward technology licensing facilitate firms’ NPD performance? Evidence from China

    DEFF Research Database (Denmark)

    Li-Ying, Jason; Wang, Yuandi; Salomo, Søren

    2013-01-01

    has reached a stage that is way beyond simple linear relationships, the appropriate question to ask is perhaps not whether inward technology licensing has a positive effect on firms’ NPD performance; instead, it is more sense-making to ask under what conditions inward technology licensing better...... firms, and factors regarding licensees’ external environment. Using a unique longitudinal dataset containing information about 141 Chinese firms’ licensing activities, we find support for our hypotheses that there is a positive relationship between inward technology and NPD performance. This positive...... licensing, the relationship between inward technology licensing and licensee firms’ subsequent NPD performance has not yet found convincing evidence. Since our understanding, shared with many other likeminded scholars and practitioners, about the dynamics between resource, institutions and firm performance...

  3. Perceptions of technology uncertainty and the consequences for performance in buyer-supplier relationships

    NARCIS (Netherlands)

    Oosterhuis, M.; van der Vaart, T.; Molleman, E.

    2011-01-01

    In this paper, we investigate how buyers' and suppliers' distinct perceptions of technology uncertainty affect the relationship between communication frequency and supplier performance. Information processing theory suggests that a fit is desirable between perceived environmental uncertainty and the

  4. FY 1997 Blue Book: High Performance Computing and Communications: Advancing the Frontiers of Information Technology

    Data.gov (United States)

    Networking and Information Technology Research and Development, Executive Office of the President — The Federal High Performance Computing and Communications HPCC Program will celebrate its fifth anniversary in October 1996 with an impressive array of...

  5. Performance of digital integrated circuit technologies at very high temperatures

    Energy Technology Data Exchange (ETDEWEB)

    Prince, J.L.; Draper, B.L.; Rapp, E.A.; Kromberg, J.N.; Fitch, L.T.

    1980-01-01

    Results of investigations of the performance and reliability of digital bipolar and CMOS integrated circuits over the 25 to 340/sup 0/C range are reported. Included in these results are both parametric variation information and analysis of the functional failure mechanisms. Although most of the work was done using commercially available circuits (TTL and CMOS) and test chips from commercially compatible processes, some results of experimental simulations of dielectrically isolated CMOS are also discussed. It was found that commercial Schottky clamped TTL, and dielectrically isolated, low power Schottky-clamped TTL, functioned to junction temperatures in excess of 325/sup 0/C. Standard gold doped TTL functioned only to 250/sup 0/C, while commercial, isolated I/sup 2/L functioned to the range 250/sup 0/C to 275/sup 0/C. Commercial junction isolated CMOS, buffered and unbuffered, functioned to the range 280/sup 0/C to 310/sup 0/C/sup +/, depending on the manufacturer. Experimental simulations of simple dielectrically isolated CMOS integrated circuits, fabricated with heavier doping levels than normal, functioned to temperatures in excess of 340/sup 0/C. High temperature life testing of experimental, silicone-encapsulated simple TTL and CMOS integrated circuits have shown no obvious life limiting problems to date. No barrier to reliable functionality of TTL bipolar or CMOS integrated ciruits at temperatures in excess of 300/sup 0/C has been found.

  6. OCRWM SCIENCE & TECHNOLOGY PROGRAM MATERIALS PERFORMANCE TARGETED THRUST FACT SHEET

    Energy Technology Data Exchange (ETDEWEB)

    DOE

    2005-10-06

    In severe corrosive or abrasive environments, steel is rarely used since the range of properties available, in existing steels, are insufficient, resulting in the prevalent usage of either corrosion resistant materials like nickel based superalloys or abrasion resistant materials like tungsten carbide based hardmetals. Recently, a host of carbide based alloys including WC-Co-Cr, NiCr-Cr{sub 3}C{sub 2}, WC-Cr{sub 3}C{sub 2}-Ni etc. have been developed in an attempt to bridge the gap between providing both wear and corrosion protection. In this presentation, data will be presented showing how a newly developed steel coating, SAM2X5, with an amorphous/nanocomposite structure can bridge the gap between conventional metallic alloys and ceramic hardmetal performance with excellent combinations of properties including corrosion resistance superior to nickel superalloys in a number of environments and wear resistance approaching that of tungsten carbide cobalt. The unique combination of damage tolerance developed should be especially applicable for the replacement of electrolytic hard chromium.

  7. Measuring process performance within healthcare logistics - a decision tool for selecting measuring technologies

    DEFF Research Database (Denmark)

    Feibert, Diana Cordes; Jacobsen, Peter

    2015-01-01

    Performance measurement can support the organization in improving the efficiency and effectiveness of logistical healthcare processes. Selecting the most suitable technologies is important to ensure data validity. A case study of the hospital cleaning process at a public Danish hospital...... was conducted. Monitoring tasks and ascertaining quality of work is difficult in such a process. Based on principal-agent theory, a set of decision indicator has been developed, and a decision framework for assessing technologies to enable performance measurement has been proposed....

  8. Potassium Isotopic Compositions of NIST Potassium Standards and 40Ar/39Ar Mineral Standards

    Science.gov (United States)

    Morgan, Leah; Tappa, Mike; Ellam, Rob; Mark, Darren; Higgins, John; Simon, Justin I.

    2013-01-01

    Knowledge of the isotopic ratios of standards, spikes, and reference materials is fundamental to the accuracy of many geochronological methods. For example, the 238U/235U ratio relevant to U-Pb geochronology was recently re-determined [1] and shown to differ significantly from the previously accepted value employed during age determinations. These underlying values are fundamental to accurate age calculations in many isotopic systems, and uncertainty in these values can represent a significant (and often unrecognized) portion of the uncertainty budget for determined ages. The potassium isotopic composition of mineral standards, or neutron flux monitors, is a critical, but often overlooked component in the calculation of K-Ar and 40Ar/39Ar ages. It is currently assumed that all terrestrial materials have abundances indistinguishable from that of NIST SRM 985 [2]; this is apparently a reasonable assumption at the 0.25per mille level (1s) [3]. The 40Ar/39Ar method further relies on the assumption that standards and samples (including primary and secondary standards) have indistinguishable 40K/39K values. We will present data establishing the potassium isotopic compositions of NIST isotopic K SRM 985, elemental K SRM 999b, and 40Ar/39Ar biotite mineral standard GA1550 (sample MD-2). Stable isotopic compositions (41K/39K) were measured by the peak shoulder method with high resolution MC-ICP-MS (Thermo Scientific NEPTUNE Plus), using the accepted value of NIST isotopic SRM 985 [2] for fractionation [4] corrections [5]. 40K abundances were measured by TIMS (Thermo Scientific TRITON), using 41K/39K values from ICP-MS measurements (or, for SRM 985, values from [2]) for internal fractionation corrections. Collectively these data represent an important step towards a metrologically traceable calibration of 40K concentrations in primary 40Ar/39Ar mineral standards and improve uncertainties by ca. an order of magnitude in the potassium isotopic compositions of standards.

  9. Reflective Optical Chopper Used in NIST High-Power Laser Measurements

    Directory of Open Access Journals (Sweden)

    Cromer, Chris

    2008-11-01

    Full Text Available For the past ten years, NIST has used high-reflectivity, optical choppers as beamsplitters and attenuators when calibrating the absolute responsivity and response linearity of detectors used with high-power CW lasers. The chopper-based technique has several advantages over the use of wedge-shaped transparent materials (usually crystals often used as beam splitters in this type of measurement system. We describe the design, operation and calibration of these choppers. A comparison between choppers and transparent wedge beampslitters is also discussed.

  10. Update of NIST half-life results corrected for ionization chamber source-holder instability.

    Science.gov (United States)

    Unterweger, M P; Fitzgerald, R

    2014-05-01

    As reported at the ICRM 2011, it was discovered that the source holder used for calibrations in the NIST 4πγ ionization chamber (IC) was not stable. This has affected a large number of half-life measurement results previously reported and used in compilations of nuclear data. Corrections have been made on all of the half-life data based on the assumption that the changes to the ionization chamber response were gradual. The corrections are energy dependent and therefore radionuclide specific. This presentation will review our results and present the recommended changes in half-life values and/or uncertainties.

  11. Certification of NIST SRM 1961: 30 μm Diameter Polystyrene Spheres

    Science.gov (United States)

    Hartman, Arie W.; Doiron, Theodore D.; Hembree, Gary G.

    1991-01-01

    This report describes the certification of SRM 1961, an NIST Standard Reference Material for particle diameter. It consists of an aqueous suspension of monosize 30 μm diameter polystyrene spheres. The primary technique used optical microscopy; it gave a mean diameter value D¯=29.62±0.04μm and a standard deviation of the size distribution σD = 0.21 μm. Over 2000 spheres were measured. The supporting technique used electron microscopy, which yielded D¯=29.68±0.11μm. Ninety spheres were measured.

  12. Accumulation of technological capabilities and operational performance improvement: evidence from a firm-level case study

    Directory of Open Access Journals (Sweden)

    Marcelio Fonseca

    2014-11-01

    Full Text Available Drawing on a single case study based on first-hand and long-term evidence gathered through extensive fieldwork, this article examines the process of technological capability accumulation and its implications for operational performance improvement in a chemical firm in Brazil (1980-2007. The evidence indicates that the efforts on technological capability accumulation, especially for innovative activities, permitted the case-study firm to improve its operational performance, notably in terms of technical and, to some extent, in terms of commercial indicators. This study contributes to advancing our understanding of relationship between the firm-level accumulation of technological capabilities and operational performance improvement. The study draws managers’ attention to the importance of managing and measuring a multiplicity of technological capabilities within firms and to the relevance of firm-level engineering-based innovative activities, normally neglected by policy makers.

  13. Firms’ Negative Perceptions on Patents, Technology Management Strategies, and Subsequent Performance

    Directory of Open Access Journals (Sweden)

    Eun Jin Han

    2017-03-01

    Full Text Available While patents do have many advantages, their disadvantages include requiring disclosure of technical information and imposing the burden of patenting and litigation costs. In this study, we investigate the relationship between a firm’s negative perception on patents, technology management strategies, and subsequent performance. For this purpose, we use a categorical canonical correlation analysis of the top 200, large, R&D-intensive firms in Korea. We find that negative perceptions such as burdensome transaction costs, non-patenting culture, and uncertainty of the outcome of patent litigation are associated with firms’ technology management strategies, such as purchase of licenses, and subsequent performance, such as an increase in the number of inventions from the cross-fertilization of different technologies. The results of this study are expected to contribute to a better understanding of firms’ negative attitudes toward the effects of patents, their subsequent technology management strategies, and resulting performance.

  14. Results and Comparison from the SAM Linear Fresnel Technology Performance Model: Preprint

    Energy Technology Data Exchange (ETDEWEB)

    Wagner, M. J.

    2012-04-01

    This paper presents the new Linear Fresnel technology performance model in NREL's System Advisor Model. The model predicts the financial and technical performance of direct-steam-generation Linear Fresnel power plants, and can be used to analyze a range of system configurations. This paper presents a brief discussion of the model formulation and motivation, and provides extensive discussion of the model performance and financial results. The Linear Fresnel technology is also compared to other concentrating solar power technologies in both qualitative and quantitative measures. The Linear Fresnel model - developed in conjunction with the Electric Power Research Institute - provides users with the ability to model a variety of solar field layouts, fossil backup configurations, thermal receiver designs, and steam generation conditions. This flexibility aims to encompass current market solutions for the DSG Linear Fresnel technology, which is seeing increasing exposure in fossil plant augmentation and stand-alone power generation applications.

  15. HAPPY Team Entry to NIST OpenSAD Challenge: A Fusion of Short-Term Unsupervised and Segment i-Vector Based Speech Activity Detectors

    DEFF Research Database (Denmark)

    Kinnunen, Tomi; Sholokhov, Alexey; Khoury, Elie

    2016-01-01

    . SADs come in both unsupervised and supervised flavors, the latter requiring a labeled training set. Our solution fuses six base SADs (2 supervised and 4 unsupervised). The individually best SAD, in terms of detection cost function (DCF), is supervised and uses adaptive segmentation with i......Speech activity detection (SAD), the task of locating speech segments from a given recording, remains challenging under acoustically degraded conditions. In 2015, National Institute of Standards and Technology (NIST) coordinated OpenSAD bench-mark. We summarize “HAPPY” team effort to Open- SAD......-vectors to represent the segments. Fusion of the six base SADs yields a relative decrease of 9.3 % in DCF over this SAD. Further, relative decrease of 17.4 % is obtained by incorporating channel detection side information....

  16. Low carbon technology performance vs infrastructure vulnerability: analysis through the local and global properties space.

    Science.gov (United States)

    Dawson, David A; Purnell, Phil; Roelich, Katy; Busch, Jonathan; Steinberger, Julia K

    2014-11-04

    Renewable energy technologies, necessary for low-carbon infrastructure networks, are being adopted to help reduce fossil fuel dependence and meet carbon mitigation targets. The evolution of these technologies has progressed based on the enhancement of technology-specific performance criteria, without explicitly considering the wider system (global) impacts. This paper presents a methodology for simultaneously assessing local (technology) and global (infrastructure) performance, allowing key technological interventions to be evaluated with respect to their effect on the vulnerability of wider infrastructure systems. We use exposure of low carbon infrastructure to critical material supply disruption (criticality) to demonstrate the methodology. A series of local performance changes are analyzed; and by extension of this approach, a method for assessing the combined criticality of multiple materials for one specific technology is proposed. Via a case study of wind turbines at both the material (magnets) and technology (turbine generators) levels, we demonstrate that analysis of a given intervention at different levels can lead to differing conclusions regarding the effect on vulnerability. Infrastructure design decisions should take a systemic approach; without these multilevel considerations, strategic goals aimed to help meet low-carbon targets, that is, through long-term infrastructure transitions, could be significantly jeopardized.

  17. The influence of interactive technology on student performance in an Oklahoma secondary Biology I program

    Science.gov (United States)

    Feltman, Vallery

    Over the last decade growth in technologies available to teach students and enhance curriculum has become an important consideration in the educational system. The profile of today's secondary students have also been found to be quite different than those of the past. Their learning styles and preferences are issues that should be addressed by educators. With the growth and availability of new technologies students are increasingly expecting to use these as learning tools in their classrooms. This study investigates how interactive technology may impact student performance. This study specifically focuses on the use of the Apple Ipad in 4 Biology I classrooms. This study used an experimental mixed method design to examine how using Ipads for learning impacted student achievement, motivation to learn, and learning strategies. Qualitatively the study examined observed student behaviors and student perceptions regarding the use of interactive technologies. Data was analyzed using descriptive statistics, t-tests, 2-way ANOVAs, and qualitative analysis. Quantitatively the results revealed no significant difference between students who used the interactive technology to learn and those who did not. Qualitative data revealed behaviors indicative of being highly engaged with the subject matter and the development of critical thinking skills which may improve student performance. Student perceptions also revealed overall positive experiences with using interactive technology in the classroom. It is recommended that further studies be done to look at using interactive technologies for a longer period of time using multiple subjects areas. This would provide a more in-depth exploration of interactive technologies on student achievement.

  18. A Path to NIST Calibrated Stars over the Dome of the Sky

    Science.gov (United States)

    Zimmer, P.; McGraw, J. T.; Zirzow, D. C.; Cramer, C.; Lykke, K.; Woodward, J. T., IV

    2016-05-01

    The UNM Measurement Astrophysics group is currently constructing and testing a mobile instrument suite that includes a multi-wavelength backscatter lidar, stellar spectroradiometer and cameras (visible and thermal infrared) that will provide real-time atmospheric transmission metadata in the column of atmosphere through which a supported telescope is observing. The design , operation and calibration of the lidar (the Facility Lidar for Astronomical Measurement of Extinction - FLAME) and spectroradiometer (the Astronomical Extinction SpectroPhotometer - AESoP) are detailed. The first task of this instrument suite will be to help create a new set of standard stars radiometrically calibrated to NIST standards. Initially this will be done for bright stars across the wavelength range 350nm to 1050nm at 1nm spectral resolution with measurement accuracy better than 1% per spectral resolution element by calibration to NIST silicon detectors. Because these standard stars will support both ground- and space-based observations, our proposed evolution of calibration begins with suitable bright optical standards and then adds measurements into the infrared. Following optical/infrared calibration of bright stars we plan to calibrate fainter stars, ultimately to V˜18, both in the optical and near infrared.

  19. BodyHeat Encounter: Performing Technology in Pedagogical Spaces of Surveillance/Intimacy

    Science.gov (United States)

    Fels, Lynn; Ricketts, Kathryn

    2015-01-01

    What occurs when videographer and performer encounter each other through the lens of a camera? This collaborative performative inquiry focuses on embodiment and emergent narrative as realized through an encounter between technology and the visceral body--a relational body that smells, touches, sees, hears and feels the emergent world through…

  20. Theory Development and Convergence of Human Resource Fields: Implications for Human Performance Technology

    Science.gov (United States)

    Cho, Yonjoo; Yoon, Seung Won

    2010-01-01

    This study examines major theory developments in human resource (HR) fields and discusses implications for human performance technology (HPT). Differentiated HR fields are converging to improve organizational performance through knowledge-based innovations. Ruona and Gibson (2004) made a similar observation and analyzed the historical evolution…

  1. Theory Development and Convergence of Human Resource Fields: Implications for Human Performance Technology

    Science.gov (United States)

    Cho, Yonjoo; Yoon, Seung Won

    2010-01-01

    This study examines major theory developments in human resource (HR) fields and discusses implications for human performance technology (HPT). Differentiated HR fields are converging to improve organizational performance through knowledge-based innovations. Ruona and Gibson (2004) made a similar observation and analyzed the historical evolution…

  2. Using Technology-Enhanced, Cooperative, Group-Project Learning for Student Comprehension and Academic Performance

    Science.gov (United States)

    Tlhoaele, Malefyane; Suhre, Cor; Hofman, Adriaan

    2016-01-01

    Cooperative learning may improve students' motivation, understanding of course concepts, and academic performance. This study therefore enhanced a cooperative, group-project learning technique with technology resources to determine whether doing so improved students' deep learning and performance. A sample of 118 engineering students, randomly…

  3. Using technology-enhanced, cooperative, group-project learning for student comprehension and academic performance

    Science.gov (United States)

    Tlhoaele, Malefyane; Suhre, Cor; Hofman, Adriaan

    2016-05-01

    Cooperative learning may improve students' motivation, understanding of course concepts, and academic performance. This study therefore enhanced a cooperative, group-project learning technique with technology resources to determine whether doing so improved students' deep learning and performance. A sample of 118 engineering students, randomly divided into two groups, participated in this study and provided data through questionnaires issued before and after the experiment. The results, obtained through analyses of variance and structural equation modelling, reveal that technology-enhanced, cooperative, group-project learning improves students' comprehension and academic performance.

  4. Measuring process performance within healthcare logistics - a decision tool for selecting track and trace technologies

    DEFF Research Database (Denmark)

    Feibert, Diana Cordes; Jacobsen, Peter

    2015-01-01

    Monitoring tasks and ascertaining quality of work is difficult in a logistical healthcare process due to cleaning personnel being dispersed throughout the hospital. Performance measurement can support the organization in improving the efficiency and effectiveness of processes and in ensuring...... quality of work. Data validity is essential for enabling performance measurement, and selecting the right technologies is important to achieve this. A case study of the hospital cleaning process was conducted at a public Danish hospital to develop a framework for assessing technologies in healthcare...... logistics. A set of decision indicators was identified in the case study to assess technologies based on expected process performance. Two aspects of performance measurement were investigated for the hospital cleaning process: what to measure and how to measure it....

  5. Solar energy photovoltaic technology: proficiency and performance; L'energie solaire maitrise et performance photovoltaiques

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2006-07-01

    Total is committed to making the best possible of the planet's fossil fuel reserves while fostering the emergence of other solutions, notably by developing effective alternatives. Total involves in photovoltaics when it founded in 1983 Total Energies, renamed Tenesol in 2005, a world leader in the design and installation of photovoltaic solar power systems. This document presents Total's activities in the domain: the global challenge of energy sources and the environment, the energy collecting by photovoltaic electricity, the silicon technology for cell production, solar panels and systems to distribute energy, research and development to secure the future. (A.L.B.)

  6. Editorial: Advanced Learning Technologies, Performance Technologies, Open Contents, and Standards - Some Papers from the Best Papers of the Conference ICCE C3 2009

    Directory of Open Access Journals (Sweden)

    Fanny Klett (IEEE Fellow

    2010-09-01

    Full Text Available This special issue deals with several cutting edge research outcomes from recent advancement of learning technologies. Advanced learning technologies are the composition of various related technologies and concepts such as i internet technologies and mobile technologies, ii human and organizational performance/knowledge management, and iii underlying trends toward open technology, open content and open education. This editorial note describes the overview of these topics related to the advanced learning technologies to provide the common framework for the accepted papers in this special issue.

  7. A comparative study of (129)I content in environmental standard materials IAEA-375, NIST SRM 4354 and NIST SRM 4357 by Thermal Ionization Mass Spectrometry and Accelerator Mass Spectrometry.

    Science.gov (United States)

    Olson, John; Adamic, Mary; Snyder, Darin; Brookhart, Jacob; Hahn, Paula; Watrous, Matthew

    2017-01-25

    Iodine environmental measurements have consistently been validated in the literature using the standard material IAEA-375, soil collected approximately 160 miles northeast of Chernobyl, which is currently the only soil/sediment material with a certified (129)I activity. IAEA-375 has not been available for purchase since approximately 2010. Two other standard materials that are available (NIST SRM 4354, freshwater lake sediment and NIST SRM 4357, ocean sediment) have certified activities for a variety of radionuclides but not for (129)I. This paper reports a comparison of TIMS and AMS data for all three standards.

  8. Using information technology to measure, monitor and report on environmental performance

    Energy Technology Data Exchange (ETDEWEB)

    Ford, G.

    1999-07-01

    This article provides an overview of the process of environmental performance evaluation (EPE), including a discussion of the rationale and context for EPE as a key component of environmental management and sustainability metrics for businesses around the world. New and emerging developments, such as environmental performance benchmarking and standardized reporting, are highlighted. The ISO 14000 model for EPE and its environmental performance indicators is described. The article then discusses the need for new technology, including the Internet, to meet these new demands, and examines the important role of information technology in creating an efficient and effective system for the EPE process. In this regard, issues such as scaleability, data identification, data collection, reporting, user interface, integration and data warehousing are explored, and examples of the application of information technology to address these issues are provided. The article concludes with a discussion of the need to use emerging information technology to integrate various key types of performance information, including environmental, according to the balanced scorecard model for integrated business sustainability metrics. It concludes that such technology should be used now, even in the absence of global standards for performance metrics, and in spite of the theoretical and practical challenges in doing so, in order to move toward the important goal of achieving comprehensive sustainability metrics.

  9. The potential impact of 3D telepresence technology on task performance in emergency trauma care

    DEFF Research Database (Denmark)

    Söderholm, Hanna M.; Sonnenwald, Diane H.; Cairns, Bruce

    2007-01-01

    Emergency trauma is a major health problem worldwide. To evaluate the potential of emerging 3D telepresence technology for facilitating paramedic - physician collaboration while providing emergency medical trauma care we conducted a between-subjects post-test experimental lab study. During...... proxy condition also reported higher levels of self-efficacy. These results indicate 3D telepresence technology has potential to improve paramedics' performance of complex emergency medical tasks and improve emergency trauma health care when designed appropriately. © 2007 ACM....

  10. Contributions of Science and Technology Parks Towards Firms' Performance in Pakistan

    Directory of Open Access Journals (Sweden)

    Wahid Bux Mangrio

    2013-07-01

    Full Text Available Several countries have adopted different strategies, models and policies to assist companies to develop their technological capabilities. These include high tech cluster development, creation of venture capital fund, establishment of technology incubation center, and Science & Technology parks. In turn, the creation of knowledge base industries, regional development, improves the technological infrastructure and life standard of the people. This paper discusses the contribution of science and technology parks in firms' performance in particularly employment, sales and profitability and also in creation of new businesses in information technology sector in Pakistan. This study is based on the case study of STPs (Software Technology Parks of Islamabad. The results revealed that the establishment of STPs could be helpful in the creation of new companies as half of firms located at the STPs were startup enterprises. It helps firms to enhance its growth performance in the first five years after starting their business at these STPs. By developing software parks in three major cities, Pakistan Software Export Board have achieved partially its objectives.

  11. Evolution and revolution: gauging the impact of technological and technical innovation on Olympic performance.

    Science.gov (United States)

    Balmer, Nigel; Pleasence, Pascoe; Nevill, Alan

    2012-01-01

    A number of studies have pointed to a plateauing of athletic performance, with the suggestion that further improvements will need to be driven by revolutions in technology or technique. In the present study, we examine post-war men's Olympic performance in jumping events (pole vault, long jump, high jump, triple jump) to determine whether performance has indeed plateaued and to present techniques, derived from models of human growth, for assessing the impact of technological and technical innovation over time (logistic and double logistic models of growth). Significantly, two of the events involve well-documented changes in technology (pole material in pole vault) or technique (the Fosbury Flop in high jump), while the other two do not. We find that in all four cases, performance appears to have plateaued and that no further "general" improvement should be expected. In the case of high jump, the double logistic model provides a convenient method for modelling and quantifying a performance intervention (in this case the Fosbury Flop). However, some shortcomings are revealed for pole vault, where evolutionary post-war improvements and innovation (fibre glass poles) were concurrent, preventing their separate identification in the model. In all four events, it is argued that further general growth in performance will indeed need to rely predominantly on technological or technical innovation.

  12. Women Share in Science and Technology Education and Their Job Performance in Nigeria

    Science.gov (United States)

    Osezuah, Simon; Nwadiani, C. O.

    2012-10-01

    This investigation focused on womenís share in Science and Technology education and their job performance in Nigeria. The investigation was conducted with two questions that were raised as a guide. A sample of 4886 was drawn through the questionnaire method. Analysis of the data was conducted through the use of frequency count. Findings obtained indicated that there was disparity between male and female gender in access to Science and Technology education in Nigeria, and also that there were no differences between women and men scientists and technologists in job performance. The conclusion was therefore reached that women do not have equal share with men in Science and Technology education even though the male and female scientists and technologists perform jobs equally in Nigeria. Recommendation was therefore made accordingly.

  13. Outdoor performances of four photovoltaic technologies under four typical meteorological conditions

    Science.gov (United States)

    Guenounou, A.; Aillerie, M.; Malek, A.; Triki, A.; Oulebsir, A.; Smara, Z.; Mahrane, A.; Chikh, M.

    2016-07-01

    We present a comparative study of the behavior and performance undervarious weather conditions of four PV modules of different technologies recorded in four typical daysin summer and winter. The study is based on the simultaneous and continuous testing of PV modules under natural conditions of a site located in a coastal area of southern Mediterranean. We essentially interested to the fill factor, the conversion efficiency and the energy performance. A brief description of the experimental set up and the originally method is given after the introductive paragraph. All obtained graphical results allow, at first, the validation of the approach and at second, point out that the daily evolution curves of the fill factor and the efficiency of the PV modules adopt different paces depending on the PV technology. In addition, the results of the energy study showthat the performance ratios of the different technologies aredifferently influenced by weather environment and seasons.

  14. The Strategic Impact of Information Technologies on Supply Chain and Business Performance

    Directory of Open Access Journals (Sweden)

    Hasan Kürşat GÜLEŞ

    2012-03-01

    Full Text Available In this paper, the effect of a new supply chain design on the business performance was analyzed in the context of information technologies. For that purpose, by using case study method, a company that operates in fast-moving consumer goods industry (FMCG in Turkey and possesses and uses a supporting tool named as SAP APO software as an information technology to perform supply chain operations was examined. Under the scope of the study, supply, production and distribution planning processes are modelled and implemented in short, medium and long terms. Implementation results demonstrate that restructuring of the supply chain by using information technologies has positive effects on business performances criterions like supply, production and distribution.

  15. Technology for improving the performance of semiconductor process; Handotai process no koeinoka gijutsu

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-08-29

    Introduced herein is a report on technology for improving the performance of semiconductor processes, the report resulting from the researches conducted by the submicron rule manufacturing technology research sub-committee. Chapter 1 treats the improvement of lithography, discussing the characteristics of, materials for, and problems in the chemical amplification type resist. Chapter 2 discusses the improvement of the thin film forming technology, summarizing the elements of surface reaction, and technologies relating to the formation of multi-layer wirings and contacts, in Si-based CVD technology. Chapter 3 describes the devices used in and findings obtained from the experiments conducted aiming at realizing a higher precision etching technology. Chapter 4 reports ULSI material technology, centering about the mechanism of bonding, characteristics of junction boundaries, bondage between different substrates, formation of super-fine silicone layer, improvement of characteristics and simplification of processes, and the comparison between bonded SOI (silicon on insulator) and SIMOX (separation by implanted oxygen). Chapter 5 introduces experimenting devices and the results of experiments regarding the growth of natural oxidation film and the examination of surface reactions, for which the technology of in-situ FTIR-ATR (Fourier transformation infrared-attenuated total reflection) is utilized. Chapter 6 discusses the need for and the merit and demerit of the surface control cluster tool for use in the manufacture of the semiconductor device. 219 refs., 117 figs., 10 tabs.

  16. Business Performance Measurements in Asset Management with the Support of Big Data Technologies

    Science.gov (United States)

    Campos, Jaime; Sharma, Pankaj; Jantunen, Erkki; Baglee, David; Fumagalli, Luca

    2017-09-01

    The paper reviews the performance measurement in the domain of interest. Important data in asset management are further, discussed. The importance and the characteristics of today's ICTs capabilities are also mentioned in the paper. The role of new concepts such as big data and data mining analytical technologies in managing the performance measurements in asset management are discussed in detail. The authors consequently suggest the use of the modified Balanced Scorecard methodology highlighting both quantitative and qualitative aspects, which is crucial for optimal use of the big data approach and technologies.

  17. Design study of technology requirements for high performance single-propeller-driven business airplanes

    Science.gov (United States)

    Kohlman, D. L.; Hammer, J.

    1985-01-01

    Developments in aerodyamic, structural and propulsion technologies which influence the potential for significant improvements in performance and fuel efficiency of general aviation business airplanes are discussed. The advancements include such technolgies as natural laminar flow, composite materials, and advanced intermittent combustion engines. The design goal for this parameter design study is a range of 1300 nm at 300 knots true airspeed with a payload of 1200lbs at 35,000 ft cruise altitude. The individual and synergistic effects of various advanced technologies on the optimization of this class of high performance, single engine, propeller driven business airplanes are identified.

  18. BUSINESS PERFORMANCE MEASUREMENTS IN ASSET MANAGEMENT WITH THE SUPPORT OF BIG DATA TECHNOLOGIES

    Directory of Open Access Journals (Sweden)

    Jaime CAMPOS

    2017-07-01

    Full Text Available The paper reviews the performance measurement in the domain of interest. Important data in asset management are further, discussed. The importance and the characteristics of today’s ICTs capabilities are also mentioned in the paper. The role of new concepts such as big data and data mining analytical technologies in managing the performance meas-urements in asset management are discussed in detail. The authors consequently suggest the use of the modified Bal-anced Scorecard methodology highlighting both quantitative and qualitative aspects, which is crucial for optimal use of the big data approach and technologies.

  19. Methodology for conceptual remote sensing spacecraft technology: insertion analysis balancing performance, cost, and risk

    Science.gov (United States)

    Bearden, David A.; Duclos, Donald P.; Barrera, Mark J.; Mosher, Todd J.; Lao, Norman Y.

    1997-12-01

    Emerging technologies and micro-instrumentation are changing the way remote sensing spacecraft missions are developed and implemented. Government agencies responsible for procuring space systems are increasingly requesting analyses to estimate cost, performance and design impacts of advanced technology insertion for both state-of-the-art systems as well as systems to be built 5 to 10 years in the future. Numerous spacecraft technology development programs are being sponsored by Department of Defense (DoD) and National Aeronautics and Space Administration (NASA) agencies with the goal of enhancing spacecraft performance, reducing mass, and reducing cost. However, it is often the case that technology studies, in the interest of maximizing subsystem-level performance and/or mass reduction, do not anticipate synergistic system-level effects. Furthermore, even though technical risks are often identified as one of the largest cost drivers for space systems, many cost/design processes and models ignore effects of cost risk in the interest of quick estimates. To address these issues, the Aerospace Corporation developed a concept analysis methodology and associated software tools. These tools, collectively referred to as the concept analysis and design evaluation toolkit (CADET), facilitate system architecture studies and space system conceptual designs focusing on design heritage, technology selection, and associated effects on cost, risk and performance at the system and subsystem level. CADET allows: (1) quick response to technical design and cost questions; (2) assessment of the cost and performance impacts of existing and new designs/technologies; and (3) estimation of cost uncertainties and risks. These capabilities aid mission designers in determining the configuration of remote sensing missions that meet essential requirements in a cost- effective manner. This paper discuses the development of CADET modules and their application to several remote sensing satellite

  20. Importance of Program Development Competencies for Agricultural Extension Agents' Performance in Process of Technology Transfer

    Directory of Open Access Journals (Sweden)

    Neda Tiraieyari

    2010-01-01

    Full Text Available Problem statement: The movement of technology from lab to the field has been a challenge for agricultural extension agents. In this study researchers focused on program development competencies for agricultural extension agents in process of technology transfer and discuss the importance of these competencies by determining the relationship between these competencies and performance of extension agents. Approach: The study employed stratified random sampling technique. The sample consisted of 210 extension agents in four states of Malaysia. The data were analyzed using descriptive statistics, Pearson correlation and multiple regression analysis. Results: Extension agents perceived themselves competent in developing program planning, program implementation and program evaluation. The findings supported the positive relationship between competencies and extension agents’ performance. Therefore hypothesis of the study was supported. The results of multiple regressions showed program development competencies explained 0.448 of variance of extension agents’ performance. Conclusion/Recommendations: It can be concluded that performance of extension agents is expected to increase if they have program development competencies. Results supported the importance of these competencies for performance of extension agents in process of technology transfer. Hence to keep extension agents competent and to further improve their performance, these competencies must be considered and upgraded. Continuous assessment of extension agents’ competencies and performance is recommended.

  1. NIST ThermoData Engine: Extension to Solvent Design and Propagation of Uncertainties for Process Simulation

    DEFF Research Database (Denmark)

    Diky, Vladimir; Chirico, Robert D.; Muzny, Chris

    property values and expert system for data analysis and generation of recommended property values at the specified conditions along with uncertainties on demand. The most recent extension of TDE covers solvent design and multi-component process stream property calculations with uncertainty analysis......ThermoData Engine (TDE, NIST Standard Reference Databases 103a and 103b) is the first product that implements the concept of Dynamic Data Evaluation in the fields of thermophysics and thermochemistry, which includes maintaining the comprehensive and up-to-date database of experimentally measured....... Solvent Design function serves three tasks: (1) selection of best solvent for a solid solute, (2) search for a selective solvent for a solid binary mixture, and (3) selection of best solvent for extraction. Solvents are selected from the list of registered compounds encountering more than 27,000 entries...

  2. Frequency shifts in NIST Cs Primary Frequency Standards due To Transverse RF Field Gradients

    CERN Document Server

    Ashby, Neil; Heavner, Thomas; Jefferts, Steven

    2014-01-01

    A single-particle Green's function (propagator) is introduced to study the detection of laser-cooled Cesium atoms in an atomic fountain due to RF ?field gradients in the Ramsey TE011 cavity. The detection results in a state-dependent loss of atoms at apertures in the physics package, resulting in a frequency bias. A model accounting only for motion in one dimension transverse to the symmetry axis of the fountain is discussed in detail and then generalized to two transverse dimensions. Results for fractional frequency shifts due to transverse field gradients are computed for NIST F-1 and F-2 Cesium fountains. The shifts are found to be negligible except in cases of higher RF power applied to the cavities.

  3. Optical design and initial results from NIST's AMMT/TEMPS facility

    Science.gov (United States)

    Grantham, Steven; Lane, Brandon; Neira, Jorge; Mekhontsev, Sergey; Vlasea, Mihaela; Hanssen, Leonard

    2016-05-01

    NIST's Physical Measurement and Engineering Laboratories are jointly developing the Additive Manufacturing Measurement Test bed (AMMT)/ Temperature and Emittance of Melts, Powders and Solids (TEMPS) facilities. These facilities will be co-located on an open architecture laser-based powder bed fusion system allowing users full access to the system's operation parameters. This will provide users with access to machine-independent monitoring and control of the powder bed fusion process. In this paper there will be emphasis on the AMMT, which incorporates in-line visible light collection optics for monitoring and feedback control of the powder bed fusion process. We shall present an overview of the AMMT/TEMPs program and it goals. The optical and mechanical design of the open architecture powder-bed fusion system and the AMMT will be also be described. In addition, preliminary measurement results from the system along with the current system status of the system the will be described.

  4. Controlled deposition of NIST-traceable nanoparticles as additional size standards for photomask applications

    Science.gov (United States)

    Wang, Jing; Pui, David Y. H.; Qi, Chaolong; Yook, Se-Jin; Fissan, Heinz; Ultanir, Erdem; Liang, Ted

    2008-03-01

    Particle standard is important and widely used for calibration of inspection tools and process characterization and benchmarking. We have developed a method for generating and classifying monodisperse particles of different materials with a high degree of control. The airborne particles are first generated by an electrospray. Then a tandem Differential Mobility Analyzer (TDMA) system is used to obtain monodisperse particles with NIST-traceable sizes. We have also developed a clean and well-controlled method to deposit airborne particles on mask blanks or wafers. This method utilizes electrostatic approach to deposit particles evenly in a desired spot. Both the number of particles and the spot size are well controlled. We have used our system to deposit PSL, silica and gold particles ranging from 30 nm to 125 nm on 193nm and EUV mask blanks. We report the experimental results of using these particles as calibration standards and discuss the dependency of sensitivity on the types of particles and substrate surfaces.

  5. Certification of NIST SRM 1962: 3 μm Diameter Polystyrene Spheres

    Science.gov (United States)

    Hartman, Arie W.; Doiron, Theodore D.; Fu, Joseph

    1992-01-01

    This report describes the certification of SRM 1962, a NIST Standard Reference Material for particle diameter. It consists of an aqueous suspension of monosize 3 (μm polystyrene spheres. Two calibration techniques were used: optical microscopy and electron microscopy. The first one gave a mean diameter of D¯=2.977±0.011 μm and a standard deviation of the size distribution σD = 0.020 μm, based on measurement of 4600 spheres. The second technique gave D¯=2.990±0.009 μm, based on measurement of 120 spheres. The reported value covering the two results is D¯=2.983 μm with a maximum uncertainly of 0.016 μm, with σD=0.020 μm. PMID:28053431

  6. Measurements of large silicon spheres using the NIST M48 coordinate measuring machine

    Science.gov (United States)

    Stoup, John; Doiron, Theodore

    2003-11-01

    The NIST M48 coordinate measuring machine (CMM) was used to measure the average diameter of two precision, silicon spheres of nominal diameter near 93.6mm. A measurement technique was devised that took advantage of the specific strengths of the machine and the artifacts while restricting the influences derived from the machine's few weaknesses. This effort resulted in measurements with unprecedented accuracy and uncertainty levels for CMM style instruments. The results were confirmed through a blind comparison with another national measurement institute (NMI) that used special apparatus specifically designed for the measurement of these silicon spheres and employed very different measurement techniques. The standard uncertainty of the average diameter measurements was less than 20 nanometers. This paper will describe the measurement techniques along with the decision-making processes used to develop these specific methods. The measurement uncertainty of the measurements will also be rigorously examined.

  7. Simulation and rubrics: technology and grading student performance in nurse anesthesia education.

    Science.gov (United States)

    Overstreet, Maria; McCarver, Lewis; Shields, John; Patterson, Jordan

    2015-06-01

    The use of simulation technology has introduced a challenge for simulation nurse educators: evaluation of student performance. The subjectivity of student performance evaluation has been in need of improvement. It is imperative to provide clear and consistent information to the learner of expectations for their performance. Educators use objectives to define for the learner what the primary focus will be in the learning activities. Creation of rubrics to replace checklists to evaluate learner performance is a team task. Improved rubrics assist instructors in providing valuable, immediate, and postactivity feedback and consistency among instructors, and improved inter-rater reliability.

  8. Unexpected bias in NIST 4πγ ionization chamber measurements.

    Science.gov (United States)

    Unterweger, M P; Fitzgerald, R

    2012-09-01

    In January of 2010, it was discovered that the source holder used for calibrations in the NIST 4πγ ionization chamber (IC) has not been stable. The positioning ring that determines the height of the sample in the reentrant tube of the IC has slowly shifted during 35 years of use. This has led to a slow change in the calibration factors for the various radionuclides measured by this instrument. The changes are dependent on γ-ray energy and the time the IC was calibrated for a given radionuclide. A review of the historic data with regard to when the calibrations were done has enabled us to approximate the magnitude of the changes with time. This requires a number of assumptions, and corresponding uncertainty components, including whether the changes in height were gradual or in steps as will be shown in drawings of sample holder. For calibrations the changes in calibration factors have been most significant for low energy gamma emitters such as (133)Xe, (241)Am, (125)I and (85)Kr. The corrections to previous calibrations can be approximated and the results corrected with an increase in the overall uncertainty. At present we are recalibrating the IC based on new primary measurements of the radionuclides measured on the IC. Likewise we have been calibrating a new automated ionization-chamber system. A bigger problem is the significant number of half-life results NIST has published over the last 35 years that are based on IC measurements. The effect on half-life is largest for long-lived radionuclei, especially low-energy γ-ray emitters. This presentation will review our results and recommend changes in values and/or uncertainties. Any recommendation for withdrawal of any results will also be undertaken.

  9. Opinions of Students' Parents about Performance Task in Science and Technology Class

    Directory of Open Access Journals (Sweden)

    Cengiz TÜYSÜZ

    2010-06-01

    Full Text Available The aim of this study is to determine the students’ parents’ opinions and their confrontations problems about performance task of the alternative evaluation methods during Science and Technology courses. This new alternative evaluation method aims to remove students’ memorization in education. Performance task’ target is to make studies with their teachers, developing cognitive, sensitive, psycho-motor skills of students and revealing a product as solving problem, understanding what reads, researching. The study was applied to determine parents’ attitudes towards Science and Technology performance homework at two different Primary schools in Hatay. To examine the collected data One-Way ANOVA were used. Research results showed that parents’ have largely positive attitudes towards the performance task.

  10. Simulation evaluation of NIST air-kerma rate calibration standard for electronic brachytherapy.

    Science.gov (United States)

    Hiatt, Jessica R; Rivard, Mark J; Hughes, H Grady

    2016-03-01

    Dosimetry for the model S700 50 kV electronic brachytherapy (eBT) source (Xoft, Inc., a subsidiary of iCAD, San Jose, CA) was simulated using Monte Carlo (MC) methods by Rivard et al. ["Calculated and measured brachytherapy dosimetry parameters in water for the Xoft Axxent x-ray source: An electronic brachytherapy source," Med. Phys. 33, 4020-4032 (2006)] and recently by Hiatt et al. ["A revised dosimetric characterization of the model S700 electronic brachytherapy source containing an anode-centering plastic insert and other components not included in the 2006 model," Med. Phys. 42, 2764-2776 (2015)] with improved geometric characterization. While these studies examined the dose distribution in water, there have not previously been reports of the eBT source calibration methods beyond that recently reported by Seltzer et al. ["New national air-kerma standard for low-energy electronic brachytherapy sources," J. Res. Natl. Inst. Stand. Technol. 119, 554-574 (2014)]. Therefore, the motivation for the current study was to provide an independent determination of air-kerma rate at 50 cm in air K̇air(d=50 cm) using MC methods for the model S700 eBT source. Using CAD information provided by the vendor and disassembled sources, an MC model was created for the S700 eBT source. Simulations were run using the mcnp6 radiation transport code for the NIST Lamperti air ionization chamber according to specifications by Boutillon et al. ["Comparison of exposure standards in the 10-50 kV x-ray region," Metrologia 5, 1-11 (1969)], in air without the Lamperti chamber, and in vacuum without the Lamperti chamber. K̇air(d=50 cm) was determined using the *F4 tally with NIST values for the mass energy-absorption coefficients for air. Photon spectra were evaluated over 2 π azimuthal sampling for polar angles of 0° ≤ θ ≤ 180° every 1°. Volume averaging was averted through tight radial binning. Photon energy spectra were determined over all polar angles in both air and vacuum using

  11. Technological Similarity, Post-acquisition R&D Reorganization, and Innovation Performance in Horizontal Acquisition

    DEFF Research Database (Denmark)

    Colombo, Massimo G.; Rabbiosi, Larissa

    2014-01-01

    &D personnel. We rely on PLS techniques to test our theoretical model using detailed information on 31 horizontal acquisitions in high- and medium-tech industries. Our results indicate that in horizontal acquisitions, technological similarity negatively affects post-acquisition innovation performance......This paper aims to disentangle the mechanisms through which technological similarity between acquiring and acquired firms influences innovation in horizontal acquisitions. We develop a theoretical model that links technological similarity to: (i) two key aspects of post-acquisition reorganization...... of acquired R&D operations – the rationalization of the R&D operations and the replacement of the R&D top manager, and (ii) two intermediate effects that are closely associated with the post-acquisition innovation performance of the combined firm – improvements in R&D productivity and disruptions in R...

  12. Opinions of Students' Parents about Performance Task in Science and Technology Class

    OpenAIRE

    Cengiz TÜYSÜZ; Yunus KARAKUYU; Erdal TATAR

    2010-01-01

    The aim of this study is to determine the students’ parents’ opinions and their confrontations problems about performance task of the alternative evaluation methods during Science and Technology courses. This new alternative evaluation method aims to remove students’ memorization in education. Performance task’ target is to make studies with their teachers, developing cognitive, sensitive, psycho-motor skills of students and revealing a product as solving problem, understanding what reads, re...

  13. The Impact of the New Information and Communication Technologies on the Performance Control Indicators System

    OpenAIRE

    Adriana OLARU; Alexandru CAPATINA

    2007-01-01

    Our paper emphasizes the way in which the information and communication technologies offer a real support to the managers which have a global vision on the key factors that assure business performances. The simulation of a Total Performance Scorecard reveals the advantages and opportunities of the software - Balanced Scorecard Designer in the determination of the project efficiency, based on four integrated dimensions: financial perspective, customers’ perspective, internal business perspecti...

  14. ENVIRONMENTAL TECHNOLOGY VERIFICATION REPORT - PERFORMANCE VERIFICATION OF THE W.L. GORE & ASSOCIATES GORE-SORBER SCREENING SURVEY

    Science.gov (United States)

    The U.S. Environmental Protection Agency (EPA) has created the Environmental Technology Verification Program (ETV) to facilitate the deployment of innovative or improved environmental technologies through performance verification and dissemination of information. The goal of the...

  15. Current performance of planter technology to support variable-rate seeding in the Southern US

    Science.gov (United States)

    Advances in planting technology are expanding opportunities to vary seeding rates on–the-go. Variable-rate seeding can help maximize overall profits by matching optimal planting rates to field production variability. An important aspect of variable-rate seeding is ensuring peak performance of the pl...

  16. R&D manpower and technological performance : The impact of demographic and task-related diversity

    NARCIS (Netherlands)

    Faems, D.L.M.; Subramaniam, A.

    2013-01-01

    We assess the impact of R&D manpower diversity on firms' technological performance. Relying on insights from two theoretical perspectives on team diversity (i.e. social categorization perspective and information decision-making perspective), we hypothesize that both demographic and task-related sour

  17. Technology-Enhanced Learning in Sports Education Using Clickers: Satisfaction, Performance and Immediacy

    Science.gov (United States)

    Constantinou, Vaso; Ioannou, Andri

    2016-01-01

    The article addresses ICT in Education by describing an empirical investigation of technology-enhanced sports education. The study examines the use of clickers by 162 Judo athletes during seminars on the rules and regulations of the sport. Results are based on quantitative data collected on athletes' performances and attitudes and qualitative data…

  18. Utilizing Technology Effectively to Improve Millennials' Educational Performance: An Exploratory Look at Business Students' Perceptions

    Science.gov (United States)

    Aviles, Maria; Eastman, Jacqueline K.

    2012-01-01

    Purpose: The purpose of this paper is to discuss how technological tools, such as Web 2.0 and online learning management systems, can be utilized to improve Millennials' educational performance. Design/methodology/approach: An exploratory survey of Millennial business students was conducted to measure their self-reported use and perceived…

  19. Utilizing Technology Effectively to Improve Millennials' Educational Performance: An Exploratory Look at Business Students' Perceptions

    Science.gov (United States)

    Aviles, Maria; Eastman, Jacqueline K.

    2012-01-01

    Purpose: The purpose of this paper is to discuss how technological tools, such as Web 2.0 and online learning management systems, can be utilized to improve Millennials' educational performance. Design/methodology/approach: An exploratory survey of Millennial business students was conducted to measure their self-reported use and perceived…

  20. Evaluating Web 2.0 Technologies in Higher Education Using Students' Perceptions and Performance

    Science.gov (United States)

    Karvounidis, T.; Chimos, K.; Bersimis, S.; Douligeris, C.

    2014-01-01

    In this work, Web 2.0 technologies in higher education are evaluated using students' perceptions, satisfaction, performance and behaviour. The study evaluates the Web 2.0 tools as stand-alone entities as well in terms of their cross-operability and integration (confluence) to synergistic contributions towards the enhancement of student…

  1. How Employees' Perception of Information Technology Application and Their Knowledge Management Capacity Influence Organisational Performance

    Science.gov (United States)

    Kuo, Yen-Ku; Ye, Kung-Don

    2010-01-01

    This study investigates how workers' gender, work experience, designated division, and appointment affect (i) their perception of information technology (IT) within the organisation, (ii) their self-perceived capacity in knowledge management (KM), and (iii) their perception of organisational performance (OP). Furthermore, the study also examines…

  2. Diffusing Supply Chain Innovations at Hewlett-Packard Company: Applications of Performance Technology.

    Science.gov (United States)

    Cargille, Brian; Branvold, Dwight

    2000-01-01

    Explains how Hewlett-Packard creates supply chain management innovations and effectively diffuses new technologies. Outlines how performance technologists help accelerate the diffusion and adoption of innovations by modifying innovations, define the client adoption path, create resources to lead clients through adoption, and improve the diffusion…

  3. Transferring the Soft-Skills Technology of Workplace Learning and Performance to China.

    Science.gov (United States)

    Yan, Jenny; Rothwell, William J.; Webster, Lois

    2001-01-01

    Discusses international business and workplace learning and performance (WLP), and describes a long-term strategic alliance between Motorola University China, Penn State University, Beijing University, and Nankai University. Highlights include a needs assessment of multinational corporations in China; transferring the soft-skills technology of WLP…

  4. Integrating Theory, Research, and Practice in Human Performance Technology: Examples from Behavioral, Cognitive, and Constructivist Theories.

    Science.gov (United States)

    Brethower, Dale M.

    2000-01-01

    Considers how to integrate theory, research, and practice in human performance technology. Discusses human learning; market pull versus knowledge push; using inquiry to connect theory, research, and practice; constructivist examples; behavioral and cognitive approaches; and differences in research methodologies. (Contains 13 references.) (LRW)

  5. New Wave Computer Technology and the Administration of Speech Communication Performance Courses.

    Science.gov (United States)

    Behnke, Ralph R.; Sawyer, Chris R.

    1998-01-01

    Contends that the development of a new wave of computers, some characterized by small size and portability and others noted for powerful capabilities to record and edit electronically stored motion pictures, suggests a wide range of applications of these new technologies to the teaching and administration of performance-based communication…

  6. R&D manpower and technological performance : The impact of demographic and task-related diversity

    NARCIS (Netherlands)

    Faems, D.L.M.; Subramaniam, A.

    2013-01-01

    We assess the impact of R&D manpower diversity on firms' technological performance. Relying on insights from two theoretical perspectives on team diversity (i.e. social categorization perspective and information decision-making perspective), we hypothesize that both demographic and task-related sour

  7. Effects of Mathematics Innovation and Technology on Students Performance in Open and Distance Learning

    Science.gov (United States)

    Israel, Oginni 'Niyi

    2016-01-01

    This study investigated the effect of mathematics innovation and technology on students' academic performance in open and distance learning. Quasi -- experimental research design was adopted for the study. The population for the study consisted of all the 200 level primary education students at the National Open University of Nigeria (Ekiti and…

  8. Integrating Theory, Research, and Practice in Human Performance Technology: Examples from Behavioral, Cognitive, and Constructivist Theories.

    Science.gov (United States)

    Brethower, Dale M.

    2000-01-01

    Considers how to integrate theory, research, and practice in human performance technology. Discusses human learning; market pull versus knowledge push; using inquiry to connect theory, research, and practice; constructivist examples; behavioral and cognitive approaches; and differences in research methodologies. (Contains 13 references.) (LRW)

  9. Internal Branding: Using Performance Technology To Create an Organization Focused on Customer Value.

    Science.gov (United States)

    Tosti, Donald T.; Stotz, Rodger

    2000-01-01

    Presents a performance technology approach to revenue enhancement, with the goal of improving customer retention through building customer value. Topics include internal branding, a way to make sure that what the company delivers matches what's promised in the advertising; product versus service brands; and customer satisfaction, including…

  10. R&D manpower and technological performance : The impact of demographic and task-related diversity

    NARCIS (Netherlands)

    Faems, D.L.M.; Subramaniam, A.

    2013-01-01

    We assess the impact of R&D manpower diversity on firms' technological performance. Relying on insights from two theoretical perspectives on team diversity (i.e. social categorization perspective and information decision-making perspective), we hypothesize that both demographic and task-related

  11. Performance monitoring of different module technologies and design configurations of PV system in South Africa

    CSIR Research Space (South Africa)

    Roro, Kittessa T

    2016-06-01

    Full Text Available Performance monitoring of different module technologies and system configurations of Photovoltaic (PV) systems in South Africa is rare, resulting in-few reports based on field results of PV systems installed and operated in South Africa. The goal...

  12. Internal Branding: Using Performance Technology To Create an Organization Focused on Customer Value.

    Science.gov (United States)

    Tosti, Donald T.; Stotz, Rodger

    2000-01-01

    Presents a performance technology approach to revenue enhancement, with the goal of improving customer retention through building customer value. Topics include internal branding, a way to make sure that what the company delivers matches what's promised in the advertising; product versus service brands; and customer satisfaction, including…

  13. 75 FR 21232 - FY 2010 NIST Center for Neutron Research (NCNR) Comprehensive Grants Program Extension of Due...

    Science.gov (United States)

    2010-04-23

    ... ] Research, conducting collaborative research with NIST scientists, and to conduct other outreach and...'' regulatory action under Section 3(f)(1) of the Executive Order, as it does not have an effect on the economy... economy, a sector of the economy, productivity, competition, jobs, the environment, public health or...

  14. 78 FR 63964 - Request for Comments on Draft NIST Interagency Report (NISTIR) 7628 Rev. 1, Guidelines for Smart...

    Science.gov (United States)

    2013-10-25

    ... (NISTIR) 7628 Rev. 1, Guidelines for Smart Grid Cyber Security AGENCY: National Institute of Standards and... Smart Grid Cyber Security. Draft NISTIR 7628 Rev. 1 was completed by the NIST-led Smart Grid Cybersecurity Committee (formerly the Cyber Security Working Group) of the Smart Grid Interoperability...

  15. Double Wall Framing Technique An Example of High Performance, Sustainable Building Envelope Technology

    Energy Technology Data Exchange (ETDEWEB)

    Kosny, Dr. Jan [Fraunhofer Center for Sustainable Energy Systems (CSE), Boston; Asiz, Andi [Prince Mohammad Bin Fahd University, Kingdom of Saudi Arabia; Shrestha, Som S [ORNL; Biswas, Kaushik [ORNL; Nitin, Shukla [Fraunhofer Center for Sustainable Energy Systems (CSE), Boston

    2015-01-01

    Double wall technologies utilizing wood framing have been well-known and used in North American buildings for decades. Most of double wall designs use only natural materials such as wood products, gypsum, and cellulose fiber insulation, being one of few building envelope technologies achieving high thermal performance without use of plastic foams or fiberglass. Today, after several material and structural design modifications, these technologies are considered as highly thermally efficient, sustainable option for new constructions and sometimes, for retrofit projects. Following earlier analysis performed for U.S. Department of Energy by Fraunhofer CSE, this paper discusses different ways to build double walls and to optimize their thermal performance to minimize the space conditioning energy consumption. Description of structural configuration alternatives and thermal performance analysis are presented as well. Laboratory tests to evaluate thermal properties of used insulation and whole wall system thermal performance are also discussed in this paper. Finally, the thermal loads generated in field conditions by double walls are discussed utilizing results from a joined project performed by Zero Energy Building Research Alliance and Oak Ridge National Laboratory (ORNL), which made possible evaluation of the market viability of low-energy homes built in the Tennessee Valley. Experimental data recorded in two of the test houses built during this field study is presented in this work.

  16. 75 FR 33268 - Technology Innovation Program (TIP) Notice of Availability of Funds; Amendment

    Science.gov (United States)

    2010-06-11

    ... National Institute of Standards and Technology Technology Innovation Program (TIP) Notice of Availability... solicitation of proposals for the fiscal year 2010 Technology Innovation Program (TIP) competition. NIST is... National Institute of Standards and Technology, Technology Innovation Program, 100 Bureau Drive, Stop 4750...

  17. Performance assessments of Android-powered military applications operating on tactical handheld devices

    Science.gov (United States)

    Weiss, Brian A.; Fronczek, Lisa; Morse, Emile; Kootbally, Zeid; Schlenoff, Craig

    2013-05-01

    Transformative Apps (TransApps) is a Defense Advanced Research Projects Agency (DARPA) funded program whose goal is to develop a range of militarily-relevant software applications ("apps") to enhance the operational-effectiveness of military personnel on (and off) the battlefield. TransApps is also developing a military apps marketplace to facilitate rapid development and dissemination of applications to address user needs by connecting engaged communities of endusers with development groups. The National Institute of Standards and Technology's (NIST) role in the TransApps program is to design and implement evaluation procedures to assess the performance of: 1) the various software applications, 2) software-hardware interactions, and 3) the supporting online application marketplace. Specifically, NIST is responsible for evaluating 50+ tactically-relevant applications operating on numerous Android™-powered platforms. NIST efforts include functional regression testing and quantitative performance testing. This paper discusses the evaluation methodologies employed to assess the performance of three key program elements: 1) handheld-based applications and their integration with various hardware platforms, 2) client-based applications and 3) network technologies operating on both the handheld and client systems along with their integration into the application marketplace. Handheld-based applications are assessed using a combination of utility and usability-based checklists and quantitative performance tests. Client-based applications are assessed to replicate current overseas disconnected (i.e. no network connectivity between handhelds) operations and to assess connected operations envisioned for later use. Finally, networked applications are assessed on handhelds to establish baselines of performance for when connectivity will be common usage.

  18. Exploring Advanced Technology Gas Turbine Engine Design and Performance for the Large Civil Tiltrotor (LCTR)

    Science.gov (United States)

    Snyder, Christopher A.

    2014-01-01

    A Large Civil Tiltrotor (LCTR) conceptual design was developed as part of the NASA Heavy Lift Rotorcraft Systems Investigation in order to establish a consistent basis for evaluating the benefits of advanced technology for large tiltrotors. The concept has since evolved into the second-generation LCTR2, designed to carry 90 passengers for 1,000 nautical miles at 300 knots, with vertical takeoff and landing capability. This paper explores gas turbine component performance and cycle parameters to quantify performance gains possible for additional improvements in component and material performance beyond those identified in previous LCTR2 propulsion studies and to identify additional research areas. The vehicle-level characteristics from this advanced technology generation 2 propulsion architecture will help set performance levels as additional propulsion and power systems are conceived to meet ever-increasing requirements for mobility and comfort, while reducing energy use, cost, noise and emissions. The Large Civil Tiltrotor vehicle and mission will be discussed as a starting point for this effort. A few, relevant engine and component technology studies, including previous LCTR2 engine study results will be summarized to help orient the reader on gas turbine engine architecture, performance and limitations. Study assumptions and methodology used to explore engine design and performance, as well as assess vehicle sizing and mission performance will then be discussed. Individual performance for present and advanced engines, as well as engine performance effects on overall vehicle size and mission fuel usage, will be given. All results will be summarized to facilitate understanding the importance and interaction of various component and system performance on overall vehicle characteristics.

  19. Prospects and performance limitations for Cu-Zn-Sn-S-Se photovoltaic technology.

    Science.gov (United States)

    Mitzi, David B; Gunawan, Oki; Todorov, Teodor K; Barkhouse, D Aaron R

    2013-08-13

    While cadmium telluride and copper-indium-gallium-sulfide-selenide (CIGSSe) solar cells have either already surpassed (for CdTe) or reached (for CIGSSe) the 1 GW yr⁻¹ production level, highlighting the promise of these rapidly growing thin-film technologies, reliance on the heavy metal cadmium and scarce elements indium and tellurium has prompted concern about scalability towards the terawatt level. Despite recent advances in structurally related copper-zinc-tin-sulfide-selenide (CZTSSe) absorbers, in which indium from CIGSSe is replaced with more plentiful and lower cost zinc and tin, there is still a sizeable performance gap between the kesterite CZTSSe and the more mature CdTe and CIGSSe technologies. This review will discuss recent progress in the CZTSSe field, especially focusing on a direct comparison with analogous higher performing CIGSSe to probe the performance bottlenecks in Earth-abundant kesterite devices. Key limitations in the current generation of CZTSSe devices include a shortfall in open circuit voltage relative to the absorber band gap and secondarily a high series resistance, which contributes to a lower device fill factor. Understanding and addressing these performance issues should yield closer performance parity between CZTSSe and CdTe/CIGSSe absorbers and hopefully facilitate a successful launch of commercialization for the kesterite-based technology.

  20. A Study of Thermal Performance of Contemporary Technology-Rich Educational Spaces

    Directory of Open Access Journals (Sweden)

    Sarah Elmasry

    2013-08-01

    Full Text Available One of the most dominant features of a classroom space is its high occupancy, which results in high internal heat gain (approximately 5 KW. Furthermore, installation of educational technologies, such as smart boards, projectors and computers in the spaces increases potential internal heat gain. Previous studies on office buildings indicate that with the introduction of IT equipment in spaces during the last decade, cooling load demands are increasing with an associated increase in summer electrical demand. Due to the fact that educational technologies in specific correspond to pedagogical practices within the space, a lot of variations due to occupancy patterns occur. Also, thermal loads caused by educational technologies are expected to be dependent on spatial configuration, for example, position with respect to the external walls, lighting equipment, mobility of devices. This study explores the thermal impact of educational technologies in 2 typical educational spaces in a facility of higher education; the classroom and the computer lab. The results indicate that a heat gain ranging between 0.06 and 0.095 KWh/m2 is generated in the rooms when educational technologies are in use. The second phase of this study is ongoing, and investigates thermal zones within the rooms due to distribution of educational technologies. Through simulation of thermal performance of the rooms, alternative room configurations are thus recommended in response to the observed thermal zones.

  1. A Study of Thermal Performance of Contemporary Technology-Rich Educational Spaces

    Directory of Open Access Journals (Sweden)

    Sarah Elmasry

    2013-08-01

    Full Text Available One of the most dominant features of a classroom space is its high occupancy, which results in high internal heat gain (approximately 5 KW. Furthermore, installation of educational technologies, such as smart boards, projectors and computers in the spaces increases potential internal heat gain. Previous studies on office buildings indicate that with the introduction of IT equipment in spaces during the last decade, cooling load demands are increasing with an associated increase in summer electrical demand. Due to the fact that educational technologies in specific correspond to pedagogical practices within the space, a lot of variations due to occupancy patterns occur. Also, thermal loads caused by educational technologies are expected to be dependent on spatial configuration, for example, position with respect to the external walls, lighting equipment, mobility of devices. This study explores the thermal impact of educational technologies in 2 typical educational spaces in a facility of higher education; the classroom and the computer lab. The results indicate that a heat gain ranging between 0.06 and 0.095 KWh/m2 is generated in the rooms when educational technologies are in use. The second phase of this study is ongoing, and investigates thermal zones within the rooms due to distribution of educational technologies. Through simulation of thermal performance of the rooms, alternative room configurations are thus recommended in response to the observed thermal zones.

  2. HEALTH TECHNOLOGY PERFORMANCE ASSESSMENT: REAL-WORLD EVIDENCE FOR PUBLIC HEALTHCARE SUSTAINABILITY.

    Science.gov (United States)

    Guerra-Júnior, Augusto Afonso; Pires de Lemos, Lívia Lovato; Godman, Brian; Bennie, Marion; Osorio-de-Castro, Cláudia Garcia Serpa; Alvares, Juliana; Heaney, Aine; Vassallo, Carlos Alberto; Wettermark, Björn; Benguria-Arrate, Gaizka; Gutierrez-Ibarluzea, Iñaki; Santos, Vania Cristina Canuto; Petramale, Clarice Alegre; Acurcio, Fransciso de Assis

    2017-01-01

    Health technology financing is often based on randomized controlled trials (RCTs), which are often the same ones used for licensing. Because they are designed to show the best possible results, typically Phase III studies are conducted under ideal and highly controlled conditions. Consequently, it is not surprising that technologies do not always perform in real life in the same way as controlled conditions. Because financing (and price paid) decisions can be made with overestimated results, health authorities need to ask whether health systems achieve the results they expect when they choose to pay for a technology. The optimal way to answer this question is to assess the performance of financed technologies in real-world settings. Health technology performance assessment (HTpA) refers to the systematic evaluation of the properties, effects, and/or impact of a health intervention or health technology in the real world to provide information for investment/disinvestment decisions and clinical guideline updates. The objective is to describe the development and principal aspects of the Guideline for HTpA commissioned by the Brazilian Ministry of Health. Our methods used include extensive literature review, refinement with experts across countries, and public consultation. A comprehensive guideline was developed, which has been adopted by the Brazilian government. We believe the guideline, with its particular focus on disinvestment, along with the creation of a specific program for HTpA, will allow the institutionalization and continuous improvement of the scientific methods to use real-world evidence to optimize available resources not only in Brazil but across countries.

  3. Evaluation on Low Temperature Performance of Recycled Asphalt Mixture Using Warm Mix Asphalt Technology

    Directory of Open Access Journals (Sweden)

    Xiaolan Duan,

    2015-04-01

    Full Text Available In this paper, the basic idea is about the recycled technology of asphalt mixture, more in-depth study of the lowtemperature performance of warm mix asphalt(WMA.First of all, Including the evaluation of low temperature performance of WMA made of reclaimed asphalt pavement (RAP (passed and not passed 2.36mm screen, and the influence of WMA with RAP mixed of different dosage of dispersant. Then, using the SBS modified asphalt and base asphalt were test at low temperature, research on the influence of different type of asphalt to the low temperature performance of WMA.

  4. State of the art HOT performances for Sofradir II-VI extrinsic technologies

    Science.gov (United States)

    Rubaldo, Laurent; Brunner, Alexandre; Guinedor, Pierre; Taalat, Rachid; Sam-giao, Diane; Kerlain, Alexandre; Dargent, Loïc.; Nicolas, Péré-Laprene; Chaffraix, Vincent; Bourqui, Marie-Lise; Loquet, Yannick; Coussement, Jerome

    2016-05-01

    SOFRADIR is the worldwide leader on the cooled IR detector market for high-performance space, military and security applications thanks to a well mastered Mercury Cadmium Telluride (MCT) technology, and recently thanks to the acquisition of III-V technology: InSb, InGaAs, and QWIP quantum detectors. Strong and continuous development efforts are deployed to deliver cutting edge products with improved performances in terms of spatial and thermal resolution, low excess noise and high operability. The actual trend in quantum IR detector development is the design of very small pixel, with high operating temperature. To maintain the detector performances and operability at high temperature, the number of pixels exhibiting extra noise like 1/f and RTS noise must be limited. This paper presents the recent developments achieved in Sofradir in terms of HOT MCT extrinsic p on n technology, blue MW band (cut-off wavelength of 4.2μm at 150K) and extended MW band (cut-off wavelength of 5.3μm at 130K). Comparison between optimized and non-optimized technology will be presented in terms of NETD temperature dependency, MTF, 1/f noise and the corresponding impact on RFPN (Residual Fixe Pattern Noise) and its stability up to 170K will be shown.

  5. Improvement on Performances of Internal Combustion Engine Using the Technology of Ceramic Coating

    Institute of Scientific and Technical Information of China (English)

    林建生; 付晓光; 张建昭

    2003-01-01

    This paper introduces a new technology of using ceramic coating on piston rings of an internal combustion engine, and the comparison of mechanical efficiency and performances of an actual engine before and after the application of ceramic coating on the piston rings. The experimental results show that the mechanical efficiency and power output are enhanced by 4% and 2.6%, respectively, with fuel consumption reduced by 2.9%. Further studies on coating processing and coating materials as well as the reliability and durability will be of great significance in the application and popularization of the new technology.

  6. Technology, managerial, and policy initiatives for improving environmental performance in small-scale gold mining industry.

    Science.gov (United States)

    Hilson, Gavin; Van der Vorst, Rita

    2002-12-01

    This paper reviews a series of strategies for improving environmental performance in the small-scale gold mining industry. Although conditions vary regionally, few regulations and policies exist specifically for small-scale gold mining activity. Furthermore, because environmental awareness is low in most developing countries, sites typically feature rudimentary technologies and poor management practices. A combination of policy-, managerial- and technology-related initiatives is needed to facilitate environmental improvement in the industry. Following a broad overview of these initiatives, a recommended strategy is put forth for governments keen on improving the environmental conditions of resident small-scale gold mines.

  7. Enabling Technology for Monitoring & Predicting Gas Turbine Health & Performance in IGCC Powerplants

    Energy Technology Data Exchange (ETDEWEB)

    Kenneth A. Yackly

    2005-12-01

    The ''Enabling & Information Technology To Increase RAM for Advanced Powerplants'' program, by DOE request, was re-directed, de-scoped to two tasks, shortened to a 2-year period of performance, and refocused to develop, validate and accelerate the commercial use of enabling materials technologies and sensors for coal/IGCC powerplants. The new program was re-titled ''Enabling Technology for Monitoring & Predicting Gas Turbine Health & Performance in IGCC Powerplants''. This final report summarizes the work accomplished from March 1, 2003 to March 31, 2004 on the four original tasks, and the work accomplished from April 1, 2004 to July 30, 2005 on the two re-directed tasks. The program Tasks are summarized below: Task 1--IGCC Environmental Impact on high Temperature Materials: The first task was refocused to address IGCC environmental impacts on high temperature materials used in gas turbines. This task screened material performance and quantified the effects of high temperature erosion and corrosion of hot gas path materials in coal/IGCC applications. The materials of interest included those in current service as well as advanced, high-performance alloys and coatings. Task 2--Material In-Service Health Monitoring: The second task was reduced in scope to demonstrate new technologies to determine the inservice health of advanced technology coal/IGCC powerplants. The task focused on two critical sensing needs for advanced coal/IGCC gas turbines: (1) Fuel Quality Sensor to rapidly determine the fuel heating value for more precise control of the gas turbine, and detection of fuel impurities that could lead to rapid component degradation. (2) Infra-Red Pyrometer to continuously measure the temperature of gas turbine buckets, nozzles, and combustor hardware. Task 3--Advanced Methods for Combustion Monitoring and Control: The third task was originally to develop and validate advanced monitoring and control methods for coal/IGCC gas

  8. Study of Various Design & Performance Aspects of Mosfets at Nanometer Technology

    Directory of Open Access Journals (Sweden)

    Ankita Wagdre*,

    2014-02-01

    Full Text Available As per the International Technology Roadmap for Semiconductors (ITRS each lower node is 0.7 times the previous technology making chip faster by 17% every year. Scaling down of CMOS technologies to 22nm has significant challenges in design. By reducing the dimensions many challenges like gate leakage, short channel effect (SCE, low voltage operation & delay comes into picture. Thus paper presents the past work done in design of nanoscale MOSFETs. The multi gate MOSFETs structure is considered as important candidates for CMOS scaling to reduce short channel effect. Gate All Around (GAA & Double Gate (DG are another design used to reduce SCE & suitable for low voltage operation. Use of Silicon on Insulator (SOI for the thin short channel, Lower parasitic capacitance, Resistance to Latchup & has 10-20% higher switching speed. This paper shows the various challenges in design of MOSFET & various methods or techniques for increasing the performance of MOSFET at lower node.

  9. Capability and Technology Performance Goals for the Next Step in Affordable Human Exploration of Space

    Science.gov (United States)

    Linne, Diane L.; Sanders, Gerald B.; Taminger, Karen M.

    2015-01-01

    The capability for living off the land, commonly called in-situ resource utilization, is finally gaining traction in space exploration architectures. Production of oxygen from the Martian atmosphere is called an enabling technology for human return from Mars, and a flight demonstration to be flown on the Mars 2020 robotic lander is in development. However, many of the individual components still require technical improvements, and system-level trades will be required to identify the best combination of technology options. Based largely on work performed for two recent roadmap activities, this paper defines the capability and technology requirements that will need to be achieved before this game-changing capability can reach its full potential.

  10. A proposed framework for establishing integrated cost and performance criteria for environmental technologies: A summary report

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-05-01

    This document presents a summary of results of a joint EPA/DOE project aimed at establishing a suite of standard cost and performance criteria for evaluating environmental cleanup technologies for DOE sites. Project findings include: (1) decisionmakers have quite different perspectives with interests and information needs varying among decisionmaker groups, (2) previous criteria development efforts may be too narrowly focused to apply to all decisionmakers, (3) criteria must include social/political/economic interests of decisionmakers as well as site-specific variations, and (4) there are 5 core questions that all decisionmakers are likely to ask when considering a technology for use at a site. The resource developed in the project offers decisionmakers a first-time comprehensive assessment of major technology evaluation issues.

  11. Performance Evaluation of Speech Recognition Systems as a Next-Generation Pilot-Vehicle Interface Technology

    Science.gov (United States)

    Arthur, Jarvis J., III; Shelton, Kevin J.; Prinzel, Lawrence J., III; Bailey, Randall E.

    2016-01-01

    During the flight trials known as Gulfstream-V Synthetic Vision Systems Integrated Technology Evaluation (GV-SITE), a Speech Recognition System (SRS) was used by the evaluation pilots. The SRS system was intended to be an intuitive interface for display control (rather than knobs, buttons, etc.). This paper describes the performance of the current "state of the art" Speech Recognition System (SRS). The commercially available technology was evaluated as an application for possible inclusion in commercial aircraft flight decks as a crew-to-vehicle interface. Specifically, the technology is to be used as an interface from aircrew to the onboard displays, controls, and flight management tasks. A flight test of a SRS as well as a laboratory test was conducted.

  12. CD4 enumeration technologies: a systematic review of test performance for determining eligibility for antiretroviral therapy.

    Directory of Open Access Journals (Sweden)

    Rosanna W Peeling

    Full Text Available Measurement of CD4+ T-lymphocytes (CD4 is a crucial parameter in the management of HIV patients, particularly in determining eligibility to initiate antiretroviral treatment (ART. A number of technologies exist for CD4 enumeration, with considerable variation in cost, complexity, and operational requirements. We conducted a systematic review of the performance of technologies for CD4 enumeration.Studies were identified by searching electronic databases MEDLINE and EMBASE using a pre-defined search strategy. Data on test accuracy and precision included bias and limits of agreement with a reference standard, and misclassification probabilities around CD4 thresholds of 200 and 350 cells/μl over a clinically relevant range. The secondary outcome measure was test imprecision, expressed as % coefficient of variation. Thirty-two studies evaluating 15 CD4 technologies were included, of which less than half presented data on bias and misclassification compared to the same reference technology. At CD4 counts 350 cells/μl, bias ranged from -70.7 to +47 cells/μl, compared to the BD FACSCount as a reference technology. Misclassification around the threshold of 350 cells/μl ranged from 1-29% for upward classification, resulting in under-treatment, and 7-68% for downward classification resulting in overtreatment. Less than half of these studies reported within laboratory precision or reproducibility of the CD4 values obtained.A wide range of bias and percent misclassification around treatment thresholds were reported on the CD4 enumeration technologies included in this review, with few studies reporting assay precision. The lack of standardised methodology on test evaluation, including the use of different reference standards, is a barrier to assessing relative assay performance and could hinder the introduction of new point-of-care assays in countries where they are most needed.

  13. CD4 Enumeration Technologies: A Systematic Review of Test Performance for Determining Eligibility for Antiretroviral Therapy

    Science.gov (United States)

    Peeling, Rosanna W.; Sollis, Kimberly A.; Glover, Sarah; Crowe, Suzanne M.; Landay, Alan L.; Cheng, Ben; Barnett, David; Denny, Thomas N.; Spira, Thomas J.; Stevens, Wendy S.; Crowley, Siobhan; Essajee, Shaffiq; Vitoria, Marco; Ford, Nathan

    2015-01-01

    Background Measurement of CD4+ T-lymphocytes (CD4) is a crucial parameter in the management of HIV patients, particularly in determining eligibility to initiate antiretroviral treatment (ART). A number of technologies exist for CD4 enumeration, with considerable variation in cost, complexity, and operational requirements. We conducted a systematic review of the performance of technologies for CD4 enumeration. Methods and Findings Studies were identified by searching electronic databases MEDLINE and EMBASE using a pre-defined search strategy. Data on test accuracy and precision included bias and limits of agreement with a reference standard, and misclassification probabilities around CD4 thresholds of 200 and 350 cells/μl over a clinically relevant range. The secondary outcome measure was test imprecision, expressed as % coefficient of variation. Thirty-two studies evaluating 15 CD4 technologies were included, of which less than half presented data on bias and misclassification compared to the same reference technology. At CD4 counts 350 cells/μl, bias ranged from -70.7 to +47 cells/μl, compared to the BD FACSCount as a reference technology. Misclassification around the threshold of 350 cells/μl ranged from 1-29% for upward classification, resulting in under-treatment, and 7-68% for downward classification resulting in overtreatment. Less than half of these studies reported within laboratory precision or reproducibility of the CD4 values obtained. Conclusions A wide range of bias and percent misclassification around treatment thresholds were reported on the CD4 enumeration technologies included in this review, with few studies reporting assay precision. The lack of standardised methodology on test evaluation, including the use of different reference standards, is a barrier to assessing relative assay performance and could hinder the introduction of new point-of-care assays in countries where they are most needed. PMID:25790185

  14. Modern technologies and business performance in creative industries: a framework of analysis

    Science.gov (United States)

    Bujor, A.; Avsilcai, S.

    2016-08-01

    The creative economy is, at the moment, one of the most dynamic sectors of the world economy and international trade generating jobs, revenues, export earnings while promoting social inclusion and human development (United Nations Conference on Trade and Development). It is also a set of knowledge-based activities that make intensive use of creative talent incorporating techniques or technologies bringing added value to intellectual capital. The heart of the creative economy are the creative industries, those industries which have their origin in individual creativity, skill, talent and which demonstrates to have the potential for wealth and job creation "through the generation and exploitation of intellectual property" (Department of Culture, Media and Sport, UK, 2001). The aim of this paper is twofold: to explore and to analyze the role and the contribution of technology, particularly of the new technologies, on the economic and social performance of the Creative Industries at European Union level. The foreseen output is a model for analyzing the impact of technology on business performance level of Creative Industries.

  15. Java编译程序技术与Java性能%Java Compiler Technology and Java Performance

    Institute of Scientific and Technical Information of China (English)

    冀振燕; 程虎

    2000-01-01

    This paper summarizes Java's compiler technology,and sorts all kinds of Java compilers into five categories:compilers with interpreter technology,compilers with JIT compiler technology,compilers with adaptive optimization technology,native compilers and translators.Their architectures and working principles are described and analyzed in detail.The authors also analyze the effect that compiler technology has on Java performance.%概述了Java编译程序技术,把Java编译程序分成5类:具有解释技术的编译程序;具有及时(JIT)编译技术的编译程序;具有自适应优化技术的编译程序;本地编译程序和翻译程序.详细描述和分析了它们的体系结构和工作原理.同时也分析了编译程序技术对Java性能的影响.

  16. The performing interaction between institutions and technology in the French electronuclear industry

    Energy Technology Data Exchange (ETDEWEB)

    Finon, D.; Staropoli, C

    2000-10-01

    Among the various traditional ''grands programmes'' typical of the French public intervention in high-tech industries, the nuclear programme is often considered as one of the major successes. However in recent years, the French national nuclear system, as composed of the whole set of institutions and relations between organisations in this sector, is affected by different exogenous shocks. In disorder those shocks are the European power markets liberalization legislation, the persistence of the world-wide nuclear market depression, the competition of a new power generation technology (gas turbine), and the globalization and concentration of the world-wide electromechanical industry. So, in the power industry of many OECD countries, the social acceptance crisis of nuclear technology as well as the emergence of the much less capital-intensive gas turbine relax the co-determination and open up the institutional choice. Conversely, in France, the performances of the nuclear program help to maintain the nuclear option, thus justifying the preservation of the existing industrial organisation and institutional scheme. In order to characterise the joint institutional and technological dynamics of the French electricity supply industry two stages are distinguished and discussed: first the efficient adaptation of institutions and industrial relationships to the nuclear as a new technology, and second the influence of technological features on the industry structures changes. (A.L.B.)

  17. Zootechnical and economic performance indexes of milk production systems with different technological levels

    Directory of Open Access Journals (Sweden)

    Rodrigo de Andrade Ferrazza

    2015-02-01

    Full Text Available The objective of this study was to estimate reference zootechnical and economic performance indexes, examine the influence of different technological levels on technical and economic results on dairy farms and identify the components that had higher representativeness on total and effective operational cost. Thirty-eight size, zootechnical and economic indicators of 61 milk production systems, grouped according to three technological levels, were analyzed. The data were collected during January 2002 to December 2011 period. It was adopted the structure of the operating cost and the total cost as methodology for calculating the costs. The results were compared by ANOVA test (normal distribution, complemented by LSD test, and Kruskal-Wallis test (non-normal distribution, also complemented by LSD test. The stratification of milk production systems according to technological level does not seem to be a good criterion to be used when it wants to make comparisons between different groups of producers, evidenced by the lack of statistical significance (P>0.05 in comparing of size and zootechnical indexes between low and medium technological level groups. Producers of high technological level made investments without proper analysis of return on investment and risk. The items of total and effective operational cost that had higher representativeness were, in descending order, feeding and labor.

  18. Technological Activities and Their Impact on the Financial Performance of the Firm : Exploitation and Exploration within and between Firms

    NARCIS (Netherlands)

    Belderbos, Rene; Faems, Dries; Leten, Bart; Van Looy, Bart

    2010-01-01

    The present study analyzes the impact of firms' technological strategies on their financial performance. Technology strategies are defined by making a distinction between explorative and exploitative as well as collaborative and solitary technological activities. Several hypotheses are tested on a p

  19. The influence of muscle physiology and advanced technology on sports performance.

    Science.gov (United States)

    Neptune, Richard R; McGowan, Craig P; Fiandt, John M

    2009-01-01

    Muscle mechanical output such as force and power are governed by highly nonlinear intrinsic muscle properties associated with different muscle fiber types and are influenced by training and age. Many of the interactions between these properties pose trade-offs such that an individual's anthropometrics and muscle morphology may allow an athlete to excel in one sport but not in others. Advanced modeling and simulation techniques are powerful tools to gain insight into performance limits, optimal equipment designs, and mechanisms that may lead to injury. Recent technological innovations have produced faster running tracks, bicycles, speed skates, and swimming pools. This review discusses the influence of intrinsic muscle properties in sports and how advanced technology can be used to extend the limits of human performance.

  20. An Overview of Performance Characteristics, Experiences and Trends of Aerospace Engine Bearings Technologies

    Institute of Scientific and Technical Information of China (English)

    Ebert Franz-Josef

    2007-01-01

    In this paper, the operating conditions, technical requirements, performance characteristics, design ideas, application experiences and development trends of aerospace engine bearings, including material technology, integration design and reliability, are reviewed. The development history of aerospace engine bearing is recalled briefly at first. Then today's material technologies and the high bearing performances of the bearings obtained through the new materials are introduced, which play important rolls in the aeroengine bearing developments. The integration design ideas and practices are explained to indicate its significant advantages and importance to the aerospace engine bearings. And the reliability of the shaft-bearing system is pointed out and treated as the key requirement with goals for both engine and bearing. Finally, as it is believed that the correct design comes from practice, the pre-qualification rig testing conducted by FAG Aerospace GmbH & Co. KG is briefly illustrated as an example. All these lead to the development trends of aerospace engine bearings from different aspects.

  1. International Conference on Modern Mathematical Methods and High Performance Computing in Science and Technology

    CERN Document Server

    Srivastava, HM; Venturino, Ezio; Resch, Michael; Gupta, Vijay

    2016-01-01

    The book discusses important results in modern mathematical models and high performance computing, such as applied operations research, simulation of operations, statistical modeling and applications, invisibility regions and regular meta-materials, unmanned vehicles, modern radar techniques/SAR imaging, satellite remote sensing, coding, and robotic systems. Furthermore, it is valuable as a reference work and as a basis for further study and research. All contributing authors are respected academicians, scientists and researchers from around the globe. All the papers were presented at the international conference on Modern Mathematical Methods and High Performance Computing in Science & Technology (M3HPCST 2015), held at Raj Kumar Goel Institute of Technology, Ghaziabad, India, from 27–29 December 2015, and peer-reviewed by international experts. The conference provided an exceptional platform for leading researchers, academicians, developers, engineers and technocrats from a broad range of disciplines ...

  2. Collaborative Performance Analysis and the Establishement of Main Body of Agricutlural Technology Innovation

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    Relying on the relevant data from China Statistical Yearbook and Chinese Rural Statistical Yearbook,the coolabarative performance of main body of agricutlural technology innovation is evaluated by taking quaternary-parties innovation body as the sujects and by establishing the index system from the perspectives of input and output.The results show serious dislocation of main body and bad collabrative performance.On the basis,the quaternary-parties motivation system cocerning agricutlural enterpises,agricutlural science and technology acanamy,rural hosueholds and governments is established.The system is capable of integrating market,sciencetific reserch and diffusion collection into a whole part and solving the seperation of agricutlural innovation supply and demand.

  3. New high-performance complementary bipolar technology featuring 45-GHz NPN and 20-GHz PNP devices

    Science.gov (United States)

    Wilson, Martin C.; Osborne, Peter H.; Thomas, Simon; Cook, Trevor

    1999-09-01

    A new high performance silicon complementary bipolar technology is introduced. In addition a novel process 'enhancement' technique based on a local oxidation is described and demonstrated and NPN devices with cut-off frequencies up to 45GHz and PNP devices of 20GHz have been fabricate. We propose that the technique we have used will allow specific transistors within a circuit to be optimized, as required.

  4. High performance computing and communications: Advancing the frontiers of information technology

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-12-31

    This report, which supplements the President`s Fiscal Year 1997 Budget, describes the interagency High Performance Computing and Communications (HPCC) Program. The HPCC Program will celebrate its fifth anniversary in October 1996 with an impressive array of accomplishments to its credit. Over its five-year history, the HPCC Program has focused on developing high performance computing and communications technologies that can be applied to computation-intensive applications. Major highlights for FY 1996: (1) High performance computing systems enable practical solutions to complex problems with accuracies not possible five years ago; (2) HPCC-funded research in very large scale networking techniques has been instrumental in the evolution of the Internet, which continues exponential growth in size, speed, and availability of information; (3) The combination of hardware capability measured in gigaflop/s, networking technology measured in gigabit/s, and new computational science techniques for modeling phenomena has demonstrated that very large scale accurate scientific calculations can be executed across heterogeneous parallel processing systems located thousands of miles apart; (4) Federal investments in HPCC software R and D support researchers who pioneered the development of parallel languages and compilers, high performance mathematical, engineering, and scientific libraries, and software tools--technologies that allow scientists to use powerful parallel systems to focus on Federal agency mission applications; and (5) HPCC support for virtual environments has enabled the development of immersive technologies, where researchers can explore and manipulate multi-dimensional scientific and engineering problems. Educational programs fostered by the HPCC Program have brought into classrooms new science and engineering curricula designed to teach computational science. This document contains a small sample of the significant HPCC Program accomplishments in FY 1996.

  5. Three-Way Complementarities: Performance Pay, Human Resource Analytics, and Information Technology

    OpenAIRE

    2010-01-01

    We test for three-way complementarities among information technology (IT), performance pay, and human resource (HR) analytics practices. We develop a principal-agent model examining how these practices work together as an incentive system that produces a larger productivity premium when the practices are implemented in concert rather than separately. We assess our model by combining fine-grained data on human capital management (HCM) software adoption over 11 years with detailed survey data o...

  6. Lithium-Ion Performance and Abuse Evaluation Using Lithium Technologies 9Ah cell

    Science.gov (United States)

    Hall, Albert Daniel; Jeevarajan, Judith A.

    2006-01-01

    Lithium-ion batteries in a pouch form offer high energy density and safety in their designs and more recently they are offering performance at higher rates. Lithium Technologies 9Ah high-power pouch cells were studied at different rates, thermal environments, under vacuum and several different conditions of abuse including overcharge, over-discharge and external short circuit. Results of this study will be presented.

  7. Performance specifications for technology development: Application for characterization of volatile organic compounds in the environment

    Energy Technology Data Exchange (ETDEWEB)

    Carpenter, S.E.; Doskey, P.V.; Erickson, M.D.; Lindahl, P.C.

    1994-07-01

    This report contains information about technology development for the monitoring and remediation of environmental pollution caused by the release of volatile organic compounds. Topics discussed include: performance specification processes, gas chromatography, mass spectrometer, fiber-optic chemical sensors, infrared spectroscopy, Raman spectroscopy, piezoelectric sensors and electrochemical sensors. These methods are analyzed for their cost efficiency, accuracy, and the ability to meet the needs of the customer.

  8. COST AND PERFORMANCE REPORT: INNOVATIVE ACOUSTIC SENSOR TECHNOLOGIES FOR LEAK DETECTION IN CHALLENGING PIPE TYPES

    Science.gov (United States)

    2016-12-30

    Technologies for Leak Detection in Challenging Pipe Types (Cost and Performance Report) Gary Anguiano Edwin Chiang Martha Araujo Stuart Strum Dr. Victor...N3943013C1256 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 6. AUTHOR(S) Gary Anguiano; Edwin Chiang; Martha Araujo; and Stuart Strum (NAVFAC EXWC...Principal Investigator Scott Waisner U.S. Army Engineer R&D Center 3909 Halls Ferry Rd. Vicksburg, MS 39180 (601) 634-2286 (601) 634

  9. Improvements of task performance in daily life after acquired brain injury using commonly available everyday technology.

    OpenAIRE

    Lindén, Anita; Lexell, Jan; Larsson Lund, Maria

    2011-01-01

    Purpose. To investigate how individualised occupation-based interventions with commonly available everyday technology (ET) can compensate for perceived difficulties with daily life tasks after an aquired brain injury (ABI) and improve satisfaction with occupational performance. Method. This intervention study was designed as a multiple case study according to Yin. Ten men and women with an ABI (traumatic or non-traumatic) participated. Data were collected through interviews, observations and ...

  10. Performance Optimization of Storable Bipropellant Engines to Fully Exploit Advanced Material Technologies

    Science.gov (United States)

    Miller, Scott; Henderson, Scott; Portz, Ron; Lu, Frank; Wilson, Kim; Krismer, David; Alexander, Leslie; Chapman, Jack; England, Chris

    2007-01-01

    This paper summarizes the work performed to dale on the NASA Cycle 3A Advanced Chemical Propulsion Technology Program. The primary goals of the program are to design, fabricate, and test high performance bipropellant engines using iridium/rhenium chamber technology to obtain 335 seconds specific impulse with nitrogen tetroxide/hydrazine propellants and 330 seconds specific impulse with nitrogen tetroxide/monomethylhydrazine propellants. Aerojet has successfully completed the Base Period of this program, wherein (1) mission and system studies have been performed to verify system performance benefits and to determine engine physical and operating parameters, (2) preliminary chamber and nozzle designs have been completed and a chamber supplier has been downselected, (3) high temperature, high pressure off-nominal hot fire testing of an existing state-of-the-art high performance bipropellant engine has been completed, and (4) thermal and performance data from the engine test have been correlated with new thermal models to enable design of the new engine injector and injector/chamber interface. In the next phase of the program, Aerojet will complete design, fabrication, and test of the nitrogen tetroxide/hydrazine engine to demonstrate 335 seconds specific impulse, and also investigate improved technologies for iridium/rhenium chamber fabrication. Achievement of the NRA goals will significantly benefit NASA interplanetary missions and other government and commercial opportunities by enabling reduced launch weight and/or increased payload. At the conclusion of the program, the objective is to have an engine ready for final design and qualification for a specific science mission or commercial application. The program also constitutes a stepping stone to future, development, such as higher pressure pump-fed in-space storable engines.

  11. Study on the ICT Supply Chain Risk Management Standard—NIST SP800-161%ICT供应链风险管理标准NIST SP800-161探析

    Institute of Scientific and Technical Information of China (English)

    董坤祥; 谢宗晓

    2015-01-01

    本文分析了美国联邦信息系统和组织的供应链风险管理实践指导草案,并从ICT供应链风险管理的目标、应用范围、制定背景、实践和标准形成五个方面探讨了NIST SP 800-161的主要内容.最后提出了ICT供应链风险管理标准在新背景下需完善的几个方面.%We analyze the draft of Supply Chain Risk Management Practices for Federal Information Systems and Organizations. Then, we discuss the content of NIST SP800-161 in five aspects: purpose, scope, background, foundational practice and standard formation of ICT SCRM. Finally, we purpose the several aspects need to be improved in ICT SCRM standards.

  12. Simulation and Optimization of Amplitude-adjusting Performance of Crane with Virtual Prototyping Technology

    Institute of Scientific and Technical Information of China (English)

    WU Zhen; YU Meng; DENG Mingxing

    2006-01-01

    In the design of crane, designers often have to study the trajectory of amplitude-adjusting of crane. The traditional methods, illustration and analytics both show their limits. In this paper, the simulation of process of amplitude-adjusting is presented and the optimization is also performed with virtual prototyping technology. From the comparison of original solution and optimal solution, the effectiveness of this technique is testified. On the platform ADAMS/View, the interactive optimization can be performed in a visual, intuitive and credible way, which deserves to be introduced to the design of crane.

  13. Evaluation on Low Temperature Performance of Recycled Asphalt Mixture Using Warm Mix Asphalt Technology

    OpenAIRE

    Xiaolan Duan,; Chunge Li

    2015-01-01

    In this paper, the basic idea is about the recycled technology of asphalt mixture, more in-depth study of the lowtemperature performance of warm mix asphalt(WMA).First of all, Including the evaluation of low temperature performance of WMA made of reclaimed asphalt pavement (RAP) (passed and not passed 2.36mm screen), and the influence of WMA with RAP mixed of different dosage of dispersant. Then, using the SBS modified asphalt and base asphalt were test at low temperature, researc...

  14. Liquid Scintillation Counting Standardization of {sup 2}2NaCl by te CIEMAT/NIST method; Calibracion por Centelleo Liquido del ''22NaCl, mediante el metodo CIEMAT/NIST

    Energy Technology Data Exchange (ETDEWEB)

    Rodriguez Barquero, L.; Grau Carles, A.; Grau Malonda, A.

    1995-07-01

    We describe a procedure for preparing a stable solution of ''22NaCl for liquid scintillation counting and its counting stability and spectral evolution in Insta-Gel''R is studied. The solution has been standardised in terms of activity concentration by the CIEMAT/NIST method with discrepancies between experimental and computed efficiencies lower than 0.4 % and an overall uncertainty of 0.35 %. (Author) 4 refs.

  15. FINANCIAL PERFORMANCE AND TECHNOLOGICAL MODERNIZATION OF RUSSIAN HI-TECHNOLOGY COMPLEX AND THEIR ROLE TO BOOST ECONOMIC GROWTH

    OpenAIRE

    2014-01-01

    The government defense order is currently a determining factor on the development of the Russian high-technology production sector and in particular of its core the military-industrial complex. At the same time, high-technology exports remain a second factor contributing to the high-technology sector growth, while civil high-technology production for domestic markets is affected by stagnation due to limited production capacities. As export contracts profitability is much higher than that of t...

  16. Innovation Value of Information Technology: Impact of Information Technology--Intensity on Innovation Capability and Firm Performance

    Science.gov (United States)

    Ramamani, Mahesh Kumar

    2010-01-01

    Though information technology adoptions have been always referred to as innovations in firms, much of the business value literature has concentrated on the tangible and immediately measurable impacts of information technology (IT) adoptions. This study aims to explore the impact of information technology investments on the innovativeness of a…

  17. Development of NIST standard reference material 2373: Genomic DNA standards for HER2 measurements

    Directory of Open Access Journals (Sweden)

    Hua-Jun He

    2016-06-01

    Full Text Available NIST standard reference material (SRM 2373 was developed to improve the measurements of the HER2 gene amplification in DNA samples. SRM 2373 consists of genomic DNA extracted from five breast cancer cell lines with different amounts of amplification of the HER2 gene. The five components are derived from the human cell lines SK-BR-3, MDA-MB-231, MDA-MB-361, MDA-MB-453, and BT-474. The certified values are the ratios of the HER2 gene copy numbers to the copy numbers of selected reference genes DCK, EIF5B, RPS27A, and PMM1. The ratios were measured using quantitative polymerase chain reaction and digital PCR, methods that gave similar ratios. The five components of SRM 2373 have certified HER2 amplification ratios that range from 1.3 to 17.7. The stability and homogeneity of the reference materials were shown by repeated measurements over a period of several years. SRM 2373 is a well characterized genomic DNA reference material that can be used to improve the confidence of the measurements of HER2 gene copy number.

  18. A comparative study of 129I content in environmental standard materials IAEA-375, NIST SRM 4354 and NIST SRM 4357 by Thermal Ionization Mass Spectrometry and Accelerator Mass Spectrometry

    Energy Technology Data Exchange (ETDEWEB)

    Olson, John; Adamic, Mary; Snyder, Darin; Brookhart, Jacob; Hahn, Paula; Watrous, Matthew

    2016-11-01

    Iodine environmental measurements have consistently been backed up in the literature by standard materials like IAEA-375, Chernobyl Soil. There are not many other sources of a certified reference material for 129I content for mass spectrometry measurements. Some that have been found in the literature include NIST-4354 and NIST-4357. They are still available at the time of this writing. They don’t have certified content or isotopic values. There has been some work in the literature to show that iodine is present, but there hasn’t been enough to establish a consensus value. These materials have been analyzed at INL through two separate mass spectrometry techniques. They involve a combustion method of the starting material in oxygen, followed by TIMS analysis and a leaching preparation analyzed by accelerator mass spectrometry. Combustion/TIMS preparation of NIST SRM-4354 resulted in a 129I/127I ratio of 1.92 x 10-6 which agrees with AMS measurements which measured the 129I/127I ratio to be 1.93 x 10-6.

  19. The C-2000 program : achieving high performance through better technologies and changes in the design process

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2000-09-01

    In 1993, CANMET Energy Technology Centre of Natural Resources Canada launched a demonstration program for high-performance buildings. The focus of the C-2000 Program for Advanced Commercial Buildings was on energy and environmental performance, but it also included a variety of other parameters. Of the 13 buildings that have been designed, some have been built while others are approaching the construction phase. The Canadian Model National Energy Code for Buildings (MNECB) is the standard used as a performance benchmark. The demonstration program has shown that the likelihood of high performance depends on close teamwork by all members of a building design team with the augmentation of a normal design team with an energy engineer, an environmental specialist and a cost consultant. Other factors which help achiever high performance are the use of clear and comprehensive technical guidelines and the development of short written performance strategies. The commissioning of all major systems during the construction phase also help ensure that the systems are properly installed and perform to design levels. The completed projects have confirmed that a 35 to 50 per cent improvement in energy performance levels can be achieved with only modest increases in design budgets. 7 refs., 7 figs.

  20. A Comparison of Contemporary Gold Versus Platinum Thermocouples with NIST SRM 1749-Based Thermocouples and Reference Function

    Science.gov (United States)

    Coleman, M. J.; Wiandt, T. J.; Harper, T.

    2015-12-01

    Fluke Calibration (formerly Hart Scientific) in American Fork, Utah, USA is a manufacturer of temperature calibration instruments. The company manufactured reference standard gold versus platinum (Au-Pt) thermocouples from 1992 to about 2002. Manufacturing was halted in 2002 because a trend of poor curve-fit results was observed in new batches of wire. After reviewing the possible sources of the problem, it was decided to sample wire from multiple manufacturers and investigate ways to make the curve-fit work better. This paper presents the results from the study of the wire and a characterization technique to help improve characterization of thermocouples made with lower purity wire. Calibration results from NIST SRM material and older Fluke thermocouples are included as well to provide a means of comparison of contemporary wire to NIST SRM era wire.

  1. Advanced Communication Technology Satellite (ACTS) Multibeam Antenna On-Orbit Performance

    Science.gov (United States)

    1995-01-01

    The NASA Lewis Research Center's Advanced Communication Technology Satellite (ACTS) was launched in September 1993. ACTS introduced several new technologies, including a multibeam antenna (MBA) operating at extremely short wavelengths never before used in communications. This antenna, which has both fixed and rapidly reconfigurable high-energy spot beams (150 miles in diameter), serves users equipped with small antenna terminals. Extensive structural and thermal analyses have been performed for simulating the ACTS MBA on-orbit performance. The results show that the reflector surfaces (mainly the front subreflector), antenna support assembly, and metallic surfaces on the spacecraft body will be distorted because of the thermal effects of varying solar heating, which degrade the ACTS MBA performance. Since ACTS was launched, a number of evaluations have been performed to assess MBA performance in the space environment. For example, the on-orbit performance measurements found systematic environmental disturbances to the MBA beam pointing. These disturbances were found to be imposed by the attitude control system, antenna and spacecraft mechanical alignments, and on-orbit thermal effects. As a result, the MBA may not always exactly cover the intended service area. In addition, the on-orbit measurements showed that antenna pointing accuracy is the performance parameter most sensitive to thermal distortions on the front subreflector surface and antenna support assemblies. Several compensation approaches were tested and evaluated to restore on-orbit pointing stability. A combination of autotrack (75 percent of the time) and Earth sensor control (25 percent of the time) was found to be the best way to compensate for antenna pointing error during orbit. This approach greatly minimizes the effects of thermal distortions on antenna beam pointing.

  2. Design of High Performance Dynamic CMOS Circuits in Deep Submicron Technology

    Directory of Open Access Journals (Sweden)

    Salendra.Govindarajulu

    2010-07-01

    Full Text Available Technology scaling of transistor feature size has provided a remarkable advancement in silicon industry for the last three decades. The demand and popularity of portable electronics is driving designers to strive for small silicon area, higher speeds, low power dissipation and reliability. Compared to static CMOS logic, dynamic logic offers good performance. Wide fan-in logic such as domino circuits is used in high-performance applications. Dynamic domino logic circuits are widely used in modern digital VLSI circuits. These dynamic circuits are often favoured in high performance designs because of the speed advantage offered over static CMOS logic circuits. This paper compares static CMOS, domino (dynamic logic design implementations of 16-bit Ripple carry adder, 16-bit Comparator and Linear Feedback Shift Register (LFSR in terms of CMOS layout power consumption, delay, power delay product, area for 65 nm and 45 nm technologies. The techniques are compared by performing detailed transistor simulations on benchmark circuits using Microwind 3 and DSCH3 CMOS layout CAD tools.

  3. A study on relationship between information technology facilities and performance of banking industry

    Directory of Open Access Journals (Sweden)

    M. Khodaei Valahzaghard

    2013-03-01

    Full Text Available The recent advances on information technology have made tremendous change on traditional banking. These days, people do not carry cash and prefer to use electronic devices such as point of sale system (POS or PIN entry devices (PinPad to do desirable transactions. These technologies could facilitate e-business and increase profitability in various industries including banking sector. The purpose of this paper is to investigate the effect of five new products namely ATM, POS Machines, PinPad machines, online and swift branches on banking performance indicators including return on assets (ROA, return on equities (ROE and operating investment return (OIR. We use the information of 19 private and governmental banks, which were active in Iran over the period of 2005-2010. The study uses linear regression analysis as well as VAR technique to study the effects of the independent variables on bank performance indicators. The results indicate that while there are some weak and positive relationships between three technology indicators including POS, PinPad and online businesses and ROA as well as ROE, there is relatively strong and positive relationship between these three independent variables and OIR. In addition, while the results of VAR analysis have shown that any reduction on PinPad will reduce OIR but this reduction will disappear after approximately four periods.

  4. Carbon nanotube high-performance logic technology - challenges and current progress

    Science.gov (United States)

    Han, Shu-Jen

    2015-03-01

    In the last four decades, we have witnessed a tremendous information technology revolution originated from the relentless scaling of Si complementary metal-oxide semiconductor (CMOS) devices. CMOS scaling provides ever-improved transistor performance, density, power and cost, and will continue to bring new applications and functions to our daily life. However, the conventional homogeneous scaling of silicon devices has become very difficult, firstly due to the unsatisfactory electrostatic control from the gate dielectric. In addition, as we look forward to the technology nodes with sub-10 nm channel length, non-Si based channel materials will be required to provide continuous carrier velocity enhancement when the conventional strained-Si techniques run out of steam. Single-walled carbon nanotubes are promising to replace silicon as the channel material for high-performance electronics near the end of silicon scaling roadmap, with their superb electrical properties, intrinsic ultrathin body, and nearly transparent contact with certain metals. This talk discusses recent advances in modeling and experimental works that reveal the properties and potential of ultra-scaled nanotube transistors, separation and assembly techniques for forming nanotube arrays with high semiconducting nanotube purity and tight pitch separation, and engineering aspects of their implementation in integrated circuits and functional systems. A concluding discussion highlights most significant challenges from technology points of view, and provides perspectives on the future of carbon nanotube based nanoelectronics.

  5. Preliminary Assessment of Variable Speed Power Turbine Technology on Civil Tiltrotor Size and Performance

    Science.gov (United States)

    Snyder, Christopher A.; Acree, Cecil W., Jr.

    2012-01-01

    A Large Civil Tiltrotor (LCTR) conceptual design was developed as part of the NASA Heavy Lift Rotorcraft Systems Investigation in order to establish a consistent basis for evaluating the benefits of advanced technology for large tiltrotors. The concept has since evolved into the second-generation LCTR2, designed to carry 90 passengers for 1,000 nm at 300 knots, with vertical takeoff and landing capability. This paper performs a preliminary assessment of variable-speed power turbine technology on LCTR2 sizing, while maintaining the same, advanced technology engine core. Six concepts were studied; an advanced, single-speed engine with a conventional power turbine layout (Advanced Conventional Engine, or ACE) using a multi-speed (shifting) gearbox. There were five variable-speed power turbine (VSPT) engine concepts, comprising a matrix of either three or four turbine stages, and fixed or variable guide vanes; plus a minimum weight, twostage, fixed-geometry VSPT. The ACE is the lightest engine, but requires a multi-speed (shifting) gearbox to maximize its fuel efficiency, whereas the VSPT concepts use a lighter, fixed-ratio gearbox. The NASA Design and Analysis of Rotorcraft (NDARC) design code was used to study the trades between rotor and engine efficiency and weight. Rotor performance was determined by Comprehensive Analytical Model of Rotorcraft Aerodynamics and Dynamics (CAMRAD II), and engine performance was estimated with the Numerical Propulsion System Simulation (NPSS). Design trades for the ACE vs. VSPT are presented in terms of vehicle gross and empty weight, propulsion system weight and mission fuel burn for the civil mission. Because of its strong effect on gearbox weight and on both rotor and engine efficiency, rotor speed was chosen as the reference design variable for comparing design trades. Major study assumptions are presented and discussed. Impressive engine power-to-weight and fuel efficiency reduced vehicle sensitivity to propulsion system choice

  6. Technology transfer from biomedical research to clinical practice: measuring innovation performance.

    Science.gov (United States)

    Balas, E Andrew; Elkin, Peter L

    2013-12-01

    Studies documented 17 years of transfer time from clinical trials to practice of care. Launched in 2002, the National Institutes of Health (NIH) translational research initiative needs to develop metrics for impact assessment. A recent White House report highlighted that research and development productivity is declining as a result of increased research spending while the new drugs output is flat. The goal of this study was to develop an expanded model of research-based innovation and performance thresholds of transfer from research to practice. Models for transfer of research to practice have been collected and reviewed. Subsequently, innovation pathways have been specified based on common characteristics. An integrated, intellectual property transfer model is described. The central but often disregarded role of research innovation disclosure is highlighted. Measures of research transfer and milestones of progress have been identified based on the Association of University Technology Managers 2012 performance reports. Numeric milestones of technology transfer are recommended at threshold (top 50%), target (top 25%), and stretch goal (top 10%) performance levels. Transfer measures and corresponding target levels include research spending to disclosure (0.81), patents to start-up (>0.1), patents to licenses (>2.25), and average per license income (>$48,000). Several limitations of measurement are described. Academic institutions should take strategic steps to bring innovation to the center of scholarly discussions. Research on research, particularly on pathways to disclosures, is needed to improve R&D productivity. Researchers should be informed about the technology transfer performance of their institution and regulations should better support innovators.

  7. The impact of cloud-based information technology in improving organizational performance in the banking industry

    Directory of Open Access Journals (Sweden)

    Seyedeh Maryam Seyed Khamesi

    2016-09-01

    Full Text Available Cloud computing is one of the most important changes in information technology last years. The decision to choose a cloud-oriented architecture for an organization is a significant issue. In fact, cloud computing is a new paradigm and has not obtained its maturity yet. With growing cloud computing, although a lot of great promises are along with it, there are a host of concerns and problems. In this regard, the purpose of conducting this study isevaluating the effect of cloud-based information technology for improving organizational performance in the banking industry;alsoit covers the gap in previous researches that have been impractical.In this research, with understanding the banking business areas, and identifying key performance indicators financial, customer, business process, growth and learning perspectives, based on the balanced score card, effectiveness and value-adding of cloud- orientation approach have been assessed in each ofits perspectives. The study population is consisted of two Iranian banks and three payment services providers. Data collection has been conducted through desk and field study,and its tool had been questionnaire. SPSS statistical software and appropriate statistical tests such as mode and median analysis, ratio or binomial test, and Friedman test have been used in order to analyze the data. Based on the results obtained from the research, cloud-based information technology by affecting the banking business areas improves organizational performance of banks in financial, internal processes and customer perspectives and in general improves organizational performance of banks using the weighted average of perspectives.

  8. The influence of assistive technology on occupational performance and satisfaction of leprosy patients with grade 2 disabilities

    Directory of Open Access Journals (Sweden)

    Lucas da Silva Muniz

    Full Text Available Abstract INTRODUCTION: We aimed to investigate the feasibility of assistive technology (AT devices to improve leprosy patients' occupational performances and satisfaction. METHODS: This is a pretest-posttest design study. The Canadian Occupational Performance Measure was used to assess the occupational performance and satisfaction of five leprosy participants with grade 2 disabilities before and after ten 45-minute interventions using assistive technology devices. RESULTS: The data showed a statistically significant 7-point average improvement (p<0.05 in participants' post-intervention performance and satisfaction scores. CONCLUSIONS: Assistive technology devices may be useful therapeutic tools to enhance autonomy/independence and satisfaction of leprosy patients with grade 2 disabilities.

  9. Performance Assessments of Technology Transfer Offices of Thirty Major US Research Universities in 2012/2013

    Directory of Open Access Journals (Sweden)

    Ampere A. Tseng

    2014-10-01

    Full Text Available The activities and performance of thirty major universities technology transfer offices (TTOs selected from major US universities are quantitatively assessed and compared. Six leading metrics, including TTOs’ revenue, as well as quantity of invention disclosures, patent applications, patents granted, licenses signed, and startup companies launched, are used to develop a single overall performance metric (OPM for representing the performance of the TTOs. The OPM are then evaluated for each of the thirty universities and their OPM scores are compared to each other to establish the reliability and effectiveness of a comprehensive OPM. A patenting control ratio (PCR is also calculated to guide a TTO in setting its patenting strategy and procedures. These two metrics should be able to provide a comprehensive overview of how good is the TTO of a university as compare to those of its peers and, even more importantly, how the program fares globally.

  10. Technological performance and alliances over the industry life cycle : Evidence from the ASIC industry

    NARCIS (Netherlands)

    Vanhaverbeke, W.P.M.; Belderbos, R.; Duijsters, Geert; Beerkens, B.E.

    Technology development in firms is frequently based on a combination of internal and external technological learning. Consequently, firms need to develop both technological capital (a patent portfolio) and alliance capital (a portfolio of technology alliances). This paper examines the relationship

  11. The mediating role of guanxi network and communication performance in transforming Web 2.0 technologies usage to work performance : An empirical study in China

    NARCIS (Netherlands)

    Wong, L.H.M.; Davison, R.M.; Ou, C.X.J.; Cheng, Z.; Tan, F.B.; Bunker, D.

    2014-01-01

    Motivated by both the increasing popularity of Web 2.0 technologies and the lack of empirical studies to conceptualize and validate their roles in the work place, in this research we aim to establish a research model to capture how Web 2.0 technologies can enhance individual work performance. Ground

  12. When does inward technology licensing facilitate firms' NPD performance? A contingency perspective

    DEFF Research Database (Denmark)

    Wang, Yuandi; Li-Ying, Jason

    2014-01-01

    Many firms find inward technology licensing (ITL), as a means to access external technological knowledge, an effective and relatively inexpensive way for new product development (NPD). However, although the literature has suggested some advantages and disadvantages of ITL with respect to NPD...... be investigated through a contingency perspective. Thus, this study posits that a firm's propensity to develop new products through ITL is contingent upon two categories of contingency factors that are internal and external to firms. Using a dataset containing information about Chinese firms' licensing activities......, we find support for our hypotheses: the positive relationship between ITL and NPD performance of a licensee firm is moderated by firms' absolute and relative absorptive capacity and the knowledge endowment in the region where the licensee firm operates....

  13. High-Performance WSe2 Complementary Metal Oxide Semiconductor Technology and Integrated Circuits.

    Science.gov (United States)

    Yu, Lili; Zubair, Ahmad; Santos, Elton J G; Zhang, Xu; Lin, Yuxuan; Zhang, Yuhao; Palacios, Tomás

    2015-08-12

    Because of their extraordinary structural and electrical properties, two-dimensional materials are currently being pursued for applications such as thin-film transistors and integrated circuit. One of the main challenges that still needs to be overcome for these applications is the fabrication of air-stable transistors with industry-compatible complementary metal oxide semiconductor (CMOS) technology. In this work, we experimentally demonstrate a novel high performance air-stable WSe2 CMOS technology with almost ideal voltage transfer characteristic, full logic swing and high noise margin with different supply voltages. More importantly, the inverter shows large voltage gain (∼38) and small static power (picowatts), paving the way for low power electronic system in 2D materials.

  14. Technology in Note Taking and Assessment: The Effects of Congruence on Student Performance

    Directory of Open Access Journals (Sweden)

    Matthew E. Barrett

    2014-01-01

    Full Text Available This study examined the encoding specificity principle in relation to traditional and computer-based note taking and assessment formats in higher education. Students (N = 79 took lecture notes either by hand (n = 40 or by computer (n = 39 and then completed either a computer or a paper-based assessment. When note taking and assessment formats were congruent, students scored significantly higher on the assessment when compared to students whose note taking and assessment format were incongruent. These findings highlight the importance of research on how in-class technology may affect student performance, and suggest that faculty and administrators seek to coordinate and standardize the use of assessment and note taking technologies where possible.

  15. Effect of Knowledge Management on Organizational Performance: Enabling Thought Leadership and Social Capital through Technology Management

    Science.gov (United States)

    Chalhoub, Michel S.

    The present paper studies the relationship between social networks enabled by technological advances in social software, and overall business performance. With the booming popularity of online communication and the rise of knowledge communities, businesses are faced with a challenge as well as an opportunity - should they monitor the use of social software or encourage it and learn from it? We introduce the concept of user-autonomy and user-fun, which go beyond the traditional user-friendly requirement of existing information technologies. We identified 120 entities out of a sample of 164 from Mediterranean countries and the Gulf region, to focus on the effect of social exchange information systems in thought leadership.

  16. Additive Manufacturing and High-Performance Computing: a Disruptive Latent Technology

    Science.gov (United States)

    Goodwin, Bruce

    2015-03-01

    This presentation will discuss the relationship between recent advances in Additive Manufacturing (AM) technology, High-Performance Computing (HPC) simulation and design capabilities, and related advances in Uncertainty Quantification (UQ), and then examines their impacts upon national and international security. The presentation surveys how AM accelerates the fabrication process, while HPC combined with UQ provides a fast track for the engineering design cycle. The combination of AM and HPC/UQ almost eliminates the engineering design and prototype iterative cycle, thereby dramatically reducing cost of production and time-to-market. These methods thereby present significant benefits for US national interests, both civilian and military, in an age of austerity. Finally, considering cyber security issues and the advent of the ``cloud,'' these disruptive, currently latent technologies may well enable proliferation and so challenge both nuclear and non-nuclear aspects of international security.

  17. Performance of astronomical beam combiner prototypes fabricated by hybrid sol-gel technology.

    Science.gov (United States)

    Ghasempour, Askari; Leite, A M P; Alexandre, D; Reynaud, F; Marques, P V S; Garcia, P J V; Moreira, P J

    2010-04-26

    Integrated optics coaxial two, three and four telescope beam combiners have been fabricated by hybrid sol-gel technology for astronomical applications. Temporal and spectral analyses of the output interferometric signal have been performed, and their results are in mutual good agreement. The results of the characterization method employed are cross-checked using contrast measurements obtained independently, demonstrating that the chromatic differential dispersion is the main contributer to contrast reduction. The mean visibility of the fabricated devices is always higher than 95 %, obtained using a source with spectral bandwidth of 50 nm. These results show the capability of hybrid sol-gel technology for fast prototyping of complex chip designs used in astronomical applications.

  18. Use of Advanced Plastic Materials in Nigeria: Performance Assessment of Expanded Polystyrene Building Technology System

    Directory of Open Access Journals (Sweden)

    Anthony Nkem Ede (PhD

    2016-08-01

    Full Text Available The provision of affordable residential houses for the masses in the developing nations has been a mirage over the years and the future does not portend good as the cost of adopting conventional concrete material technologies is escalating while so many environmental issues like climate change are being raised in the recent times.To circumvent this poor housing provision trend, some innovative construction materials and technologies are being introduced to facilitate unique modular designs, reduction of labour, decline in the depletion of exhaustible materials,savings of time and fund. One of such materials is the expanded polystyrene. The introduction of advanced plastic materials and in particular the expanded polystyrene building technologies in the Nigerian constructionindustry will be a very useful and brilliant initiative that will aid the reduction of cost of construction and facilitate access to affordable houses for the masses.This researchaims at studying the applications of this innovative plastic material in the Nigerian building industry with special regard to the performance perception by the clients and the end users. A building estate where expanded polystyrene building technology has been predominantly used in Abuja is considered as a case study. Questionnaires were distributed among clients and residents of the building estate and statistical tools were used to analyse the data collected. Great satisfaction verified among the clients and residents and the high ranking performance confirmed for recyclability, reliability, versatility and moisture resistance of EPS building products all herald a great future for the applications of this advanced building products in the Nigerian building industry.

  19. The Effect of Technology Transfer Factors on Performance: An Empirical Study of Libyan Petroleum Industry

    Directory of Open Access Journals (Sweden)

    A. S. Mohamed

    2009-01-01

    Full Text Available Problem statement: In Libya, like most petroleum producing countries, attempts began to develop the petroleum industry through several frames of Technology Transfer (TT. The realization of TT is progressively more forecasted with a starting point of essential factors mainly government support, Knowledge base, environment, Willingness to learn and anticipated to rely more on these factors further in the future. Approach: This study evaluated the degree of significance for the government support, knowledge base, environment and the willingness to learn after years of implementing industry standards, importing technology and training employees and joint ventures with advanced companies were applied to the Libyan petroleum industry. Results: The TT performance factor measurements were derived from a questionnaire survey conducted recently on the Libyan petroleum industry, which involved in TT process. With response rate of 68.35%, the findings showed that the TT performance correlates with the level of readiness of environment, knowledge base, willingness to learn factors and the influential role of government support factor in the Libyan petroleum industry. Conclusion: Hence, results implied or even established that successful performance of TT, which able to cultivate petroleum industry employees can provide a broader spectrum of benefits to the petroleum industry.

  20. An investigation on task-technology fit of mobile nursing information systems for nursing performance.

    Science.gov (United States)

    Hsiao, Ju-Ling; Chen, Rai-Fu

    2012-05-01

    This study investigates factors affecting the fit between nursing tasks and mobile nursing information systems and the relationships between the task-technology fit of mobile nursing information systems and nurse performance from the perspective of task-technology fit. Survey research recruited nursing staffs as subjects from selected case hospital. A total of 310 questionnaires were sent out, and 219 copies were obtained, indicating a valid response rate of 70.6%. Collected data were analyzed using the structural equation modeling technique. Our study found that dependence tasks have positive effects on information acquisition (γ=0.234, Pmobile nursing information systems in assisting nursing practices can help facilitate both independent and dependent nursing tasks. Our study discovered that the supporting functions of mobile nursing information systems have positive effects on information integration and interpretation (γ=0.365, Pmobile nursing information systems have positive effects on information acquisition (γ=0.318, Pmobile nursing information systems have positive effects on nursing performance, indicating 83.2% of totally explained variance. As shown, the use of mobile nursing information systems could provide nursing staffs with real-time and accurate information to increase efficiency and effectiveness in patient-care duties, further improving nursing performance.

  1. Light sources for high-volume manufacturing EUV lithography: technology, performance, and power scaling

    Science.gov (United States)

    Fomenkov, Igor; Brandt, David; Ershov, Alex; Schafgans, Alexander; Tao, Yezheng; Vaschenko, Georgiy; Rokitski, Slava; Kats, Michael; Vargas, Michael; Purvis, Michael; Rafac, Rob; La Fontaine, Bruno; De Dea, Silvia; LaForge, Andrew; Stewart, Jayson; Chang, Steven; Graham, Matthew; Riggs, Daniel; Taylor, Ted; Abraham, Mathew; Brown, Daniel

    2017-06-01

    Extreme ultraviolet (EUV) lithography is expected to succeed in 193-nm immersion multi-patterning technology for sub-10-nm critical layer patterning. In order to be successful, EUV lithography has to demonstrate that it can satisfy the industry requirements in the following critical areas: power, dose stability, etendue, spectral content, and lifetime. Currently, development of second-generation laser-produced plasma (LPP) light sources for the ASML's NXE:3300B EUV scanner is complete, and first units are installed and operational at chipmaker customers. We describe different aspects and performance characteristics of the sources, dose stability results, power scaling, and availability data for EUV sources and also report new development results.

  2. New technology markedly improves hand-hygiene performance among healthcare workers after restroom visits.

    Science.gov (United States)

    Møller-Sørensen, H; Korshin, A; Mogensen, T; Høiby, N

    2016-04-01

    The risks to patients from pathogens present on healthcare workers' (HCWs') hands are high; however, compliance with hand hygiene among HCWs is low. We devised a prospective intervention trial of a new hand-hygiene dispensing technology to improve HCWs' compliance with hand hygiene. Baseline hand-hygiene compliance was observed for three months before and after an intervention consisting of implementation of an electronic device that reminds people to comply with hand hygiene after restroom visits. Compliance in hand-hygiene performance after restroom visits increased among HCWs from 66% to 91% after the intervention.

  3. TECHNOLOGIES DE L'INFORMATION ET PERFORMANCE ORGANISATIONNELLE : DIFFÉRENTES APPROCHES D'ÉVALUATION

    OpenAIRE

    Bellaaj, Moez

    2008-01-01

    International audience; Since the beginning of 1980s, the researchers studied the relation between information technology (IT) and organizational performance. The results of their jobs led to different conclusions. To identify better the contributions of IT, a synthesis of literature allowed us to identify six approaches that trace the path from IT investments to business value.; Dés le début des années 1980, les chercheurs ont étudié la relation entre les investissements en technologie de l'...

  4. Performance Characteristics and Temperature Compensation Method of Fluid Property Sensor Based on Tuning-Fork Technology

    Directory of Open Access Journals (Sweden)

    Yuan Chen

    2016-01-01

    Full Text Available Fluid property sensor (FPS based on tuning-fork technology is applied to the measurement of the contaminant level of lubricant oil. The measuring principle of FPS sensor is derived and proved together with its resolution. The performance characteristics of the FPS sensor, such as sensitivity coefficient, resolution, and quality factor, are analyzed. A temperature compensation method is proposed to eliminate the temperature-dependence of the measuring parameters, and its validity is investigated by numerical simulation of sensitivity, oscillating frequency, and dielectric constant. The values of purification efficiency obtained using microwave and without microwave are compared experimentally.

  5. Performance Refactoring of Instrumentation, Measurement, and Analysis Technologies for Petascale Computing. The PRIMA Project

    Energy Technology Data Exchange (ETDEWEB)

    Malony, Allen D. [Univ. of Oregon, Eugene, OR (United States). Dept. of Computer and Information Science; Wolf, Felix G. [Wilhelm-Johnen-Strasse, Julich (Germany). Forschungszentrum Julich GmbH

    2014-01-31

    The growing number of cores provided by today’s high-­end computing systems present substantial challenges to application developers in their pursuit of parallel efficiency. To find the most effective optimization strategy, application developers need insight into the runtime behavior of their code. The University of Oregon (UO) and the Juelich Supercomputing Centre of Forschungszentrum Juelich (FZJ) develop the performance analysis tools TAU and Scalasca, respectively, which allow high-­performance computing (HPC) users to collect and analyze relevant performance data – even at very large scales. TAU and Scalasca are considered among the most advanced parallel performance systems available, and are used extensively across HPC centers in the U.S., Germany, and around the world. The TAU and Scalasca groups share a heritage of parallel performance tool research and partnership throughout the past fifteen years. Indeed, the close interactions of the two groups resulted in a cross-­fertilization of tool ideas and technologies that pushed TAU and Scalasca to what they are today. It also produced two performance systems with an increasing degree of functional overlap. While each tool has its specific analysis focus, the tools were implementing measurement infrastructures that were substantially similar. Because each tool provides complementary performance analysis, sharing of measurement results is valuable to provide the user with more facets to understand performance behavior. However, each measurement system was producing performance data in different formats, requiring data interoperability tools to be created. A common measurement and instrumentation system was needed to more closely integrate TAU and Scalasca and to avoid the duplication of development and maintenance effort. The PRIMA (Performance Refactoring of Instrumentation, Measurement, and Analysis) project was proposed over three years ago as a joint international effort between UO and FZJ to

  6. Performance Refactoring of Instrumentation, Measurement, and Analysis Technologies for Petascale Computing: the PRIMA Project

    Energy Technology Data Exchange (ETDEWEB)

    Malony, Allen D. [Department of Computer and Information Science, University of Oregon; Wolf, Felix G. [Juelich Supercomputing Centre, Forschungszentrum Juelich

    2014-01-31

    The growing number of cores provided by today’s high-end computing systems present substantial challenges to application developers in their pursuit of parallel efficiency. To find the most effective optimization strategy, application developers need insight into the runtime behavior of their code. The University of Oregon (UO) and the Juelich Supercomputing Centre of Forschungszentrum Juelich (FZJ) develop the performance analysis tools TAU and Scalasca, respectively, which allow high-performance computing (HPC) users to collect and analyze relevant performance data – even at very large scales. TAU and Scalasca are considered among the most advanced parallel performance systems available, and are used extensively across HPC centers in the U.S., Germany, and around the world. The TAU and Scalasca groups share a heritage of parallel performance tool research and partnership throughout the past fifteen years. Indeed, the close interactions of the two groups resulted in a cross-fertilization of tool ideas and technologies that pushed TAU and Scalasca to what they are today. It also produced two performance systems with an increasing degree of functional overlap. While each tool has its specific analysis focus, the tools were implementing measurement infrastructures that were substantially similar. Because each tool provides complementary performance analysis, sharing of measurement results is valuable to provide the user with more facets to understand performance behavior. However, each measurement system was producing performance data in different formats, requiring data interoperability tools to be created. A common measurement and instrumentation system was needed to more closely integrate TAU and Scalasca and to avoid the duplication of development and maintenance effort. The PRIMA (Performance Refactoring of Instrumentation, Measurement, and Analysis) project was proposed over three years ago as a joint international effort between UO and FZJ to accomplish

  7. Temperature measurements at the National Institute of Standards and Technology

    Science.gov (United States)

    Mangum, B. W.

    The high-precision and high-accuracy measurements involved in the calibrations of various types of thermometers at the National Institute of Standards and Technology (NIST) are described. The responsibilities of the NIST Thermometry Group include not only calibration of the standard instruments of the scales but also the calibration of base-metal and noble-metal thermocouples, industrial platinum resistance thermometers, liquid in-glass thermometers, thermistor thermometers, and digital thermometers. General laboratory thermometer calibrations are described. Also, a Measurement Assurance Program is described which provides a direct assessment of a customer's technological competence in thermometry.

  8. Performance of Coral Reef Management within Marine Protected Areas: Integrating Ecological, Socioeconomic, Technological, and Institutional Dimensions

    Directory of Open Access Journals (Sweden)

    Roni Bawole

    2013-04-01

    Full Text Available This research studied the characteristics and approaches that contributed to the successful of coral reef management (CRM efforts.  One such characteristic occurred in most case  studies was the importance of integrating ecological, socio-economic, technological use, and  institutional dimensions during all processes. Based on a multi-dimensional analysis,  the sustainability of CRM was 56.34% cumulatively, indicating a moderate level of management. This study  further suggested the importance to improve  technology and institution to achieve an effective CRM since both dimensions have  contributed only 38.80% and 49.26% respectively.  Stakeholder involvement was also central to the success of networking development within the management of Cenderawasih Bay National Park, specifically in facilitating the integration of ecological, socioeconomic, political will, and local cultural objectives in achieving an optimum planning objectives. Compilations of baselin information (both scientific and local knowledge were important to evaluate the effectiveness of all processes and for adaptive management to increase its potential in the management strategies. Balancing the integration of all management dimensions (ecology, socio-economic, technology, and institution in the whole processes with specific attributes in each case, would lead to an adaptive management for the implementation of conservation and management process.Keywords: coral  reef, management performance,  integrated dimensions, marine protected areas.

  9. Performance comparison of digital microRNA profiling technologies applied on human breast cancer cell lines.

    Directory of Open Access Journals (Sweden)

    Erik Knutsen

    Full Text Available MicroRNA profiling represents an important first-step in deducting individual RNA-based regulatory function in a cell, tissue, or at a specific developmental stage. Currently there are several different platforms to choose from in order to make the initial miRNA profiles. In this study we investigate recently developed digital microRNA high-throughput technologies. Four different platforms were compared including next generation SOLiD ligation sequencing and Illumina HiSeq sequencing, hybridization-based NanoString nCounter, and miRCURY locked nucleic acid RT-qPCR. For all four technologies, full microRNA profiles were generated from human cell lines that represent noninvasive and invasive tumorigenic breast cancer. This study reports the correlation between platforms, as well as a more extensive analysis of the accuracy and sensitivity of data generated when using different platforms and important consideration when verifying results by the use of additional technologies. We found all the platforms to be highly capable for microRNA analysis. Furthermore, the two NGS platforms and RT-qPCR all have equally high sensitivity, and the fold change accuracy is independent of individual miRNA concentration for NGS and RT-qPCR. Based on these findings we propose new guidelines and considerations when performing microRNA profiling.

  10. Performance comparison of digital microRNA profiling technologies applied on human breast cancer cell lines.

    Science.gov (United States)

    Knutsen, Erik; Fiskaa, Tonje; Ursvik, Anita; Jørgensen, Tor Erik; Perander, Maria; Lund, Eiliv; Seternes, Ole Morten; Johansen, Steinar D; Andreassen, Morten

    2013-01-01

    MicroRNA profiling represents an important first-step in deducting individual RNA-based regulatory function in a cell, tissue, or at a specific developmental stage. Currently there are several different platforms to choose from in order to make the initial miRNA profiles. In this study we investigate recently developed digital microRNA high-throughput technologies. Four different platforms were compared including next generation SOLiD ligation sequencing and Illumina HiSeq sequencing, hybridization-based NanoString nCounter, and miRCURY locked nucleic acid RT-qPCR. For all four technologies, full microRNA profiles were generated from human cell lines that represent noninvasive and invasive tumorigenic breast cancer. This study reports the correlation between platforms, as well as a more extensive analysis of the accuracy and sensitivity of data generated when using different platforms and important consideration when verifying results by the use of additional technologies. We found all the platforms to be highly capable for microRNA analysis. Furthermore, the two NGS platforms and RT-qPCR all have equally high sensitivity, and the fold change accuracy is independent of individual miRNA concentration for NGS and RT-qPCR. Based on these findings we propose new guidelines and considerations when performing microRNA profiling.

  11. Inertial Sensor Technology for Elite Swimming Performance Analysis: A Systematic Review

    Directory of Open Access Journals (Sweden)

    Robert Mooney

    2015-12-01

    Full Text Available Technical evaluation of swimming performance is an essential factor of elite athletic preparation. Novel methods of analysis, incorporating body worn inertial sensors (i.e., Microelectromechanical systems, or MEMS, accelerometers and gyroscopes, have received much attention recently from both research and commercial communities as an alternative to video-based approaches. This technology may allow for improved analysis of stroke mechanics, race performance and energy expenditure, as well as real-time feedback to the coach, potentially enabling more efficient, competitive and quantitative coaching. The aim of this paper is to provide a systematic review of the literature related to the use of inertial sensors for the technical analysis of swimming performance. This paper focuses on providing an evaluation of the accuracy of different feature detection algorithms described in the literature for the analysis of different phases of swimming, specifically starts, turns and free-swimming. The consequences associated with different sensor attachment locations are also considered for both single and multiple sensor configurations. Additional information such as this should help practitioners to select the most appropriate systems and methods for extracting the key performance related parameters that are important to them for analysing their swimmers’ performance and may serve to inform both applied and research practices.

  12. Development of Out-pile Test Technology for Fuel Assembly Performance Verification

    Energy Technology Data Exchange (ETDEWEB)

    Chun, Tae Hyun; In, W. K.; Oh, D. S. [Korea Atomic Energy Research Institute, Daejeon (Korea, Republic of)] (and others)

    2007-03-15

    Out-pile tests with full scale fuel assembly are to verify the design and to evaluate the performance of the final products. HTL for the hydraulic tests and FAMeCT for mechanical/structural tests were constructed in this project. The maximum operating conditions of HTL are 30 bar, 320 .deg. C, and 500 m3/hr. This facility can perform the pressure drop test, fuel assembly uplift test, and flow induced vibration test. FAMeCT can perform the bending and vibration tests. The verification of the developed facilities were carried out by comparing the reference data of the fuel assembly which was obtained at the Westinghouse Co. The compared data showed a good coincidence within uncertainties. FRETONUS was developed for high temperature and high pressure fretting wear simulator and performance test. A performance test was conducted for 500 hours to check the integrity, endurance, data acquisition capability of the simulator. The technology of turbulent flow analysis and finite element analysis by computation was developed. From the establishments of out-pile test facilities for full scale fuel assembly, the domestic infrastructure for PWR fuel development has been greatly upgraded.

  13. Improvements of task performance in daily life after acquired brain injury using commonly available everyday technology.

    Science.gov (United States)

    Lindén, Anita; Lexell, Jan; Larsson Lund, Maria

    2011-01-01

    To investigate how individualised occupation-based interventions with commonly available everyday technology (ET) can compensate for perceived difficulties with daily life tasks after an aquired brain injury (ABI) and improve satisfaction with occupational performance. This intervention study was designed as a multiple case study according to Yin. Ten men and women with an ABI (traumatic or non-traumatic) participated. Data were collected through interviews, observations and field notes before and after the intervention and at follow-up (on average 11 weeks afterwards). The interventions focused on enabling each participant's prioritised goals related to task performance in daily life. All participants achieved all their goals by learning to use both new functions in their own familiar ET and new ET. The participant's perceived difficulties in occupational performance decreased and their satisfaction with occupational performance increased with the use of ET. An individualised intervention process, involving the use of own familiar ET or ET off-the-shelf, has the potential to compensate for perceived difficulties following an ABI and improve satisfaction with occupational performance in daily life.

  14. Primary standardization of C-14 by means of CIEMAT/NIST, TDCR and 4πβ-γ methods; Medida absoluta da atividade de {sup 14}C pelos metodos CIEMAT/NIST, TDCR e em sistema de coincidencia 4πβ-γ

    Energy Technology Data Exchange (ETDEWEB)

    Kuznetsova, Maria

    2016-07-01

    In this work, the primary standardization of {sup 14}C solution, which emits beta particles of maximum energy 156 keV, was made by means of three different methods: CIEMAT/NIST and TDCR (Triple To Double Coincidence Ratio) methods in liquid scintillation systems and the tracing method, in the 4πβ-γ coincidence system. TRICARB LSC (Liquid Scintillator Counting) system, equipped with two photomultipliers tubes, was used for CIEMAT/NIST method, using a {sup 3}H standard that emits beta particles with maximum energy of 18.7 keV, as efficiency tracing. HIDEX 300SL LSC system, equipped with three photomultipliers tubes, was used for TDCR method. Samples of {sup 14}C and {sup 3}H, for the liquid scintillator system, were prepared using three commercial scintillation cocktails, UltimaGold, Optiphase Hisafe3 and InstaGel-Plus, in order to compare the performance in the measurements. All samples were prepared with 15 mL scintillators, in glass vials with low potassium concentration. Known aliquots of radioactive solution were dropped onto the cocktail scintillators. In order to obtain the quenching parameter curve, a nitro methane carrier solution and 1 mL of distilled water were used. For measurements in the 4πβ-γ system, {sup 60}Co was used as beta gamma emitter. SCS (software coincidence system) was applied and the beta efficiency was changed by using electronic discrimination. The behavior of the extrapolation curve was predicted with code ESQUEMA, using Monte Carlo technique. The {sup 14}C activity obtained by the three methods applied in this work was compared and the results showed to be in agreement, within the experimental uncertainty. (author)

  15. Vision based assistive technology for people with dementia performing activities of daily living (ADLs): an overview

    Science.gov (United States)

    As'ari, M. A.; Sheikh, U. U.

    2012-04-01

    The rapid development of intelligent assistive technology for replacing a human caregiver in assisting people with dementia performing activities of daily living (ADLs) promises in the reduction of care cost especially in training and hiring human caregiver. The main problem however, is the various kinds of sensing agents used in such system and is dependent on the intent (types of ADLs) and environment where the activity is performed. In this paper on overview of the potential of computer vision based sensing agent in assistive system and how it can be generalized and be invariant to various kind of ADLs and environment. We find that there exists a gap from the existing vision based human action recognition method in designing such system due to cognitive and physical impairment of people with dementia.

  16. Technology, Performance, and Market Report of Wind-Diesel Applications for Remote and Island Communities: Preprint

    Energy Technology Data Exchange (ETDEWEB)

    Baring-Gould, I.; Dabo, M.

    2009-02-01

    This paper describes the current status of wind-diesel technology and its applications, the current research activities, and the remaining system technical and commercial challenges. System architectures, dispatch strategies, and operating experience from a variety of wind-diesel systems will be discussed, as well as how recent development to explore distributed energy generation solutions for wind generation can benefit from the performance experience of operating systems. The paper also includes a detailed discussion of the performance of wind-diesel applications in Alaska, where 10 wind-diesel stations are operating and additional systems are currently being implemented. Additionally, because this application represents an international opportunity, a community of interest committed to sharing technical and operating developments is being formed. The authors hope to encourage this expansion while allowing communities and nations to investigate the wind-diesel option for reducing their dependence on diesel-driven energy sources.

  17. Technology, Performance, and Market Report of Wind-Diesel Applications for Remote and Island Communities: Preprint

    Energy Technology Data Exchange (ETDEWEB)

    Baring-Gould, I.; Dabo, M.

    2009-05-01

    This paper describes the current status of wind-diesel technology and its applications, the current research activities, and the remaining system technical and commercial challenges. System architectures, dispatch strategies, and operating experience from a variety of wind-diesel systems will be discussed, as well as how recent development to explore distributed energy generation solutions for wind generation can benefit from the performance experience of operating systems. The paper also includes a detailed discussion of the performance of wind-diesel applications in Alaska, where 10 wind-diesel stations are operating and additional systems are currently being implemented. Additionally, because this application represents an international opportunity, a community of interest committed to sharing technical and operating developments is being formed. The authors hope to encourage this expansion while allowing communities and nations to investigate the wind-diesel option for reducing their dependence on diesel-driven energy sources.

  18. Technology Development to Support Human Health and Performance in Exploration Beyond Low Earth Orbit

    Science.gov (United States)

    Kundrot, C.E.; Steinberg, S. L.; Charles, J. B.

    2011-01-01

    In the course of defining the level of risks and mitigating the risks for exploration missions beyond low Earth orbit, NASA s Human Research Program (HRP) has identified the need for technology development in several areas. Long duration missions increase the risk of serious medical conditions due to limited options for return to Earth; no resupply; highly limited mass, power, volume; and communication delays. New space flight compatible medical capabilities required include: diagnostic imaging, oxygen concentrator, ventilator, laboratory analysis (saliva, blood, urine), kidney stone diagnosis & treatment, IV solution preparation and delivery. Maintenance of behavioral health in such an isolated, confined and extreme environment requires new sensory stimulation (e.g., virtual reality) technology. Unobtrusive monitoring of behavioral health and treatment methods are also required. Prolonged exposure to weightlessness deconditions bone, muscle, and the cardiovascular system. Novel exercise equipment or artificial gravity are necessary to prevent deconditioning. Monitoring of the degree of deconditioning is required to ensure that countermeasures are effective. New technologies are required in all the habitable volumes (e.g., suit, capsule, habitat, exploration vehicle, lander) to provide an adequate food system, and to meet human environmental standards for air, water, and surface contamination. Communication delays require the crew to be more autonomous. Onboard decision support tools that assist crew with real-time detection and diagnosis of vehicle and habitat operational anomalies will enable greater autonomy. Multi-use shield systems are required to provide shielding from solar particle events. The HRP is pursuing the development of these technologies in laboratories, flight analog environments and the ISS so that the human health and performance risks will be acceptable with the available resources.

  19. Improvement on the Fatigue Performance of 2024-T4 Alloy by Synergistic Coating Technology

    Directory of Open Access Journals (Sweden)

    Xi-Shu Wang

    2014-05-01

    Full Text Available In this paper, rotating bending fatigue tests of 2024-T4 Al alloy with different oxide coatings were carried out. Compared to the uncoated and previously reported oxide coatings of aluminum alloys, the fatigue strength is able to be enhanced by using a novel oxide coating with sealing pore technology. These results indicate that the better the coating surface quality is, the more excellent the fatigue performance under rotating bending fatigue loading is. The improvement on the fatigue performance is mainly because the fatigue crack initiation and the early stage of fatigue crack growth at the coating layer can be delayed after PEO coating with pore sealing. Therefore, it is a so-called synergistic coating technology for various uses, including welding thermal cracks and filling micro-pores. The effects of different oxide coatings on surface hardness, compressive residual stress, morphology and fatigue fracture morphology are discussed. A critical compressive residual stress of about 95–100 MPa is proposed.

  20. Does Information Technology Provide Competitive Advantage And Improve Performance? An Empirical Study Of Trading Companies In Brazil

    OpenAIRE

    Ruth Clarke; Marcilio Machado

    2006-01-01

    Growing investment in information technology applications creates a need to understand the proper integration of these tools into strategic decision making of the firm. This study discusses the impact of global information and communication technologies on competitiveness and performance of Brazilian trading companies. Using resource based theory as a starting point, we examine how information technology, as an internal resource, can provide competitive advantage and what impact information t...

  1. A new high-performance AC/DC power factor correction switching converter based on one-cycle control technology and active floating-charge technology

    Institute of Scientific and Technical Information of China (English)

    GAO Chao

    2008-01-01

    A new family of converters, high-performance AC/DC power factor correction (PFC) switching converters with one-cycle control technology and active floating-charge technology, was derived and experimentally verified. The topology of a single-phase CCM and DCM Boost-PFC switching converter was also analyzed. Its operating prniciples and control methods were expounded. Based on these, a new type of AC/DC switching converter circuits for PFC combined with one-cycle control technology was presented herein. The proposed AC/DC switching converter significantly helps improve the converter efficiency and its power factor value.

  2. From Theory to Practice--Utilizing Human Performance Technology to Assess Computer Security in an Educational Setting

    Science.gov (United States)

    Lei, Kimfong; Schmidt, Therese; Schaffer, Scott P.; Um, Eun Joon

    2004-01-01

    The American Society for Training and Development (ASTD) defines human performance technology (HPT) as "a systematic approach to analyzing, improving, and managing performance in the workplace through the use of appropriate and varied interventions." The first step in this approach is the performance analysis (Gilbert, 1978). In this step, the…

  3. Technology Alliance Portfolios and Financial Performance : Value-Enhancing and Cost-Increasing Effects of Open Innovation

    NARCIS (Netherlands)

    Faems, Dries; de Visser, Matthias; Andries, Petra; Van Looy, Bart

    2010-01-01

    Firms increasingly adopt an open innovation model in which they rely on technology alliances to complement and supplement their internal innovation efforts. Although previous studies provide in-depth insight into the impact of technology alliances on the innovation performance, they remain relativel

  4. Technology alliance portfolios and financial performance: value-enhancing and cost-increasing effects of open innovation

    NARCIS (Netherlands)

    Faems, Dries; Visser, de Matthias; Andries, Petra; Looy, van Bart

    2012-01-01

    Firms increasingly adopt an open innovation model in which they rely on technology alliances to complement and supplement their internal innovation efforts. Although previous studies provide in-depth insight into the impact of technology alliances on the innovation performance, they remain relativel

  5. The Impact of Assistive Technology on the Educational Performance of Students with Visual Impairments: A Synthesis of the Research

    Science.gov (United States)

    Kelly, Stacy M.; Smith, Derrick W.

    2011-01-01

    This synthesis examined the research literature from 1965 to 2009 on the assistive technology that is used by individuals with visual impairments. The authors located and reviewed 256 articles for evidence-based research on assistive technology that had a positive impact on educational performance. Of the 256 studies, only 2 provided promising…

  6. Development of novel technologies to enhance performance and reliability of III-Nitride avalanche photodiodes

    Science.gov (United States)

    Suvarna, Puneet Harischandra

    Solar-blind ultraviolet avalanche photodiodes are an enabling technology for applications in the fields of astronomy, communication, missile warning systems, biological agent detection and particle physics research. Avalanche photodiodes (APDs) are capable of detecting low-intensity light with high quantum efficiency and signal-to-noise ratio without the need for external amplification. The properties of III-N materials (GaN and AlGaN) are promising for UV photodetectors that are highly efficient, radiation-hard and capable of visible-blind or solar-blind operation without the need for external filters. However, the realization of reliable and high performance III-N APDs and imaging arrays has several technological challenges. The high price and lack of availability of bulk III-N substrates necessitates the growth of III-Ns on lattice mismatched substrates leading to a high density of dislocations in the material that can cause high leakage currents, noise and premature breakdown in APDs. The etched sidewalls of III-N APDs and high electric fields at contact edges are also detrimental to APD performance and reliability. In this work, novel technologies have been developed and implemented that address the issues of performance and reliability in III-Nitride based APDs. To address the issue of extended defects in the bulk of the material, a novel pulsed MOCVD process was developed for the growth of AlGaN. This process enables growth of high crystal quality AlxGa1-xN with excellent control over composition, doping and thickness. The process has also been adapted for the growth of high quality III-N materials on silicon substrate for devices such as high electron mobility transistors (HEMTs). A novel post-growth defect isolation technique is also discussed that can isolate the impact of conductive defects from devices. A new sidewall passivation technique using atomic layer deposition (ALD) of dielectric materials was developed for III-N APDs that is effective in

  7. Energy Performance Impacts from Competing Low-slope Roofing Choices and Photovoltaic Technologies

    Science.gov (United States)

    Nagengast, Amy L.

    With such a vast quantity of space, commercial low-slope roofs offer significant potential for sustainable roofing technology deployment. Specifically, building energy performance can be improved by installing rooftop energy technologies such as photovoltaic (PV) panels, and/or including designs such as white or green roofs instead of traditional black. This research aims to inform and support roof decisions through quantified energy performance impacts across roof choices and photovoltaic technologies. The primary dataset for this research was measured over a 16 month period (May 24, 2011 to October 13, 2012) from a large field experiment in Pittsburgh, Pennsylvania on top of a commercial warehouse with white, black and green roof sections, each with portions covered by polycrystalline photovoltaic panels. Results from the Pittsburgh experiment were extended to three different cities (San Diego, CA; Huntsville, AL; and Phoenix, AZ) chosen to represent a wide range of irradiance and temperature values. First, this research evaluated the difference in electricity production from a green-moss roof and black roof underneath photovoltaic panels to determine if the green roof's cooler air increases the panel efficiency. Second, separate studies examine 1) average hourly heat flux by month for unobstructed and shaded roof membranes 2) heat flux peak time delay, and 3) air temperature across roof types. Results of this research show green roofs slightly increased (0.8-1.5%) PV panel efficiency in temperatures approximately at or above 25° C (77°F) compared to black roofs. However in cool climates, like Pittsburgh, the roof type under the PV panels had little overall impact on PV performance when considering year round temperatures. Instead, roof decisions should place a stronger emphasis on heat flux impacts. The green roof outperformed both black and white roofs at minimizing total conductive heat flux. These heat flow values were used to develop a new, straight

  8. Performance analysis of spatial multiplexing MIMO system with time reversal technology

    Science.gov (United States)

    Shrestha, Sanjeeb; Dou, Zheng; Khan, Zayed

    2013-03-01

    This paper deals with the performance analysis of Spatial Multiplexing(SM) multiple input multiple output (MIMO) system with time reversal (TR) technology. Focus is given on the spatial multiplexing gain of MIMO than the diversity gain aspect with the notion that the idea of diversity is inseparably associated with the uncertainty of the channel. If transmitter knows Channel State Information (CSI) before transmission, potential benefits can be harvested. TR is used here, to provide Channel State Information (CSI) at the transmitter before transmission. With the features of temporal and spatial focusing, TR not only can provide immunity against fading for spatially multiplexed data stream but also help boost its Multi Stream Interference (MSI) limited performance by mitigating it. The performance analysis of SM-MIMOTR is carried out with the aim of average minimum error probability for quantity of interest data rate. The interest date rate is 19.07 Mbps, where as the average minimum error probably is set to be that of Single Input Multi Output (SIMO) maximum ratio combining system (MRC). BER of Single Input Single Output (SISO) system is also simulated for making comparison tangible. Simulation study shows that Bit Error Rate (BER) performance of the system with the data rate of interest nearly coincides with that of SIMO system at the range of 10-15db and is better than SISO in all simulated Eb/No points. Additionally, from the standpoint of tread off curve, between diversity gain and spatial multiplexing gain, the non linearity nature still holds.

  9. 76 FR 3877 - Effectiveness of Federal Agency Participation in Standardization in Select Technology Sectors for...

    Science.gov (United States)

    2011-01-21

    ... Standardization in Select Technology Sectors for National Science and Technology Council's Sub-Committee on Standardization; Extension of Comment Period AGENCY: National Institute of Standards and Technology, U.S..._RFI@nist.gov with the subject line ``Standardization feedback for Sub-Committee on Standards.''...

  10. The Relationship between Environmental Turbulence, Management Support, Organizational Collaboration, Information Technology Solution Realization, and Process Performance, in Healthcare Provider Organizations

    Science.gov (United States)

    Muglia, Victor O.

    2010-01-01

    The Problem: The purpose of this study was to investigate relationships between environmental turbulence, management support, organizational collaboration, information technology solution realization, and process performance in healthcare provider organizations. Method: A descriptive/correlational study of Hospital medical services process…

  11. Liquid scintillation counting standardization of 125I in organic and inorganic samples by the CIEMAT/NIST method; Calibracion por centelleo liquido del 125I en muestras inorganicas y organicas, mediante el metodo CIEMAT/NIST

    Energy Technology Data Exchange (ETDEWEB)

    Rodriguez Barquero, L.; Grau Malonda, A.; Los Arcos Merino, J. M.; Grau Carles, A.

    1994-07-01

    The liquid scintillation counting standardization of organic and inorganic samples of ''I25I by the CIEMAT/NIST method using five different scintillators is described. The discrepancies between experimental and computed efficiencies are lower than 1.4% and 1.7%, for inorganic and organic samples, respectively, in the interval 421-226 of quenching parameter. Both organic and inorganic solutions have been standardized in terms of activity concentration to an overall uncertainty of 0.76%. (Author) 14 refs.

  12. Reliability- and performance-based robust design optimization of MEMS structures considering technological uncertainties

    Science.gov (United States)

    Martowicz, Adam; Uhl, Tadeusz

    2012-10-01

    The paper discusses the applicability of a reliability- and performance-based multi-criteria robust design optimization technique for micro-electromechanical systems, considering their technological uncertainties. Nowadays, micro-devices are commonly applied systems, especially in the automotive industry, taking advantage of utilizing both the mechanical structure and electronic control circuit on one board. Their frequent use motivates the elaboration of virtual prototyping tools that can be applied in design optimization with the introduction of technological uncertainties and reliability. The authors present a procedure for the optimization of micro-devices, which is based on the theory of reliability-based robust design optimization. This takes into consideration the performance of a micro-device and its reliability assessed by means of uncertainty analysis. The procedure assumes that, for each checked design configuration, the assessment of uncertainty propagation is performed with the meta-modeling technique. The described procedure is illustrated with an example of the optimization carried out for a finite element model of a micro-mirror. The multi-physics approach allowed the introduction of several physical phenomena to correctly model the electrostatic actuation and the squeezing effect present between electrodes. The optimization was preceded by sensitivity analysis to establish the design and uncertain domains. The genetic algorithms fulfilled the defined optimization task effectively. The best discovered individuals are characterized by a minimized value of the multi-criteria objective function, simultaneously satisfying the constraint on material strength. The restriction of the maximum equivalent stresses was introduced with the conditionally formulated objective function with a penalty component. The yielded results were successfully verified with a global uniform search through the input design domain.

  13. Gel-sphere-pac fuel for thermal reactors: assessment of fabrication technology and irradiation performance

    Energy Technology Data Exchange (ETDEWEB)

    Beatty, R.L. Norman, R.E.; Notz, K.J. (comps.)

    1979-11-01

    Recent interest in proliferation-resistant fuel cycles for light-water reactors has focused attention on spiked plutonium and /sup 233/U-Th fuels, requiring remote refabrication. The gel-sphere-pac process for fabricating metal-clad fuel elements has drawn special attention because it involves fewer steps. Gel-sphere-pac fabrication technology involves two major areas: the preparation of fuel spheres of high density and loading these spheres into rods in an efficiently packed geometry. Gel sphere preparation involves three major steps: preparation of a sol or of a special solution (broth), gelation of droplets of sol or broth to give semirigid spheres of controlled size, and drying and sintering these spheres to a high density. Gelation may be accomplished by water extraction (suitable only for sols) or ammonia gelation (suitable for both sols and broths but used almost exclusively with broths). Ammonia gelation can be accomplished either externally, via ammonia gas and ammonium hydroxide, or internally via an added ammonia generator such as hexamethylenetetramine. Sphere-pac fuel rod fabrication involves controlled blending and metering of three sizes of spheres into the rod and packing by low- to medium-energy vibration to achieve about 88% smear density; these sizes have diametral ratios of about 40:10:1 and are blended in size fraction amounts of about 60% coarse, 18% medium, and 22% fine. Irradiation test results indicate that sphere-pac fuel performs at least as well as pellet fuel, and may in fact offer an advantage in significantly reducing mechanical and chemical interaction between the fuel and cladding. The normal feed for gel sphere preparation, heavy metal nitrate solution, is the usual product of fuel reprocessing, so that fabrication of gel spheres performs all the functions performed by both conversion and pellet fabrication in the case of pellet technology.

  14. Microgrid Design Analysis Using Technology Management Optimization and the Performance Reliability Model

    Energy Technology Data Exchange (ETDEWEB)

    Stamp, Jason E. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Eddy, John P. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Jensen, Richard P. [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Munoz-Ramos, Karina [Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

    2016-01-01

    Microgrids are a focus of localized energy production that support resiliency, security, local con- trol, and increased access to renewable resources (among other potential benefits). The Smart Power Infrastructure Demonstration for Energy Reliability and Security (SPIDERS) Joint Capa- bility Technology Demonstration (JCTD) program between the Department of Defense (DOD), Department of Energy (DOE), and Department of Homeland Security (DHS) resulted in the pre- liminary design and deployment of three microgrids at military installations. This paper is focused on the analysis process and supporting software used to determine optimal designs for energy surety microgrids (ESMs) in the SPIDERS project. There are two key pieces of software, an ex- isting software application developed by Sandia National Laboratories (SNL) called Technology Management Optimization (TMO) and a new simulation developed for SPIDERS called the per- formance reliability model (PRM). TMO is a decision support tool that performs multi-objective optimization over a mixed discrete/continuous search space for which the performance measures are unrestricted in form. The PRM is able to statistically quantify the performance and reliability of a microgrid operating in islanded mode (disconnected from any utility power source). Together, these two software applications were used as part of the ESM process to generate the preliminary designs presented by SNL-led DOE team to the DOD. Acknowledgements Sandia National Laboratories and the SPIDERS technical team would like to acknowledge the following for help in the project: * Mike Hightower, who has been the key driving force for Energy Surety Microgrids * Juan Torres and Abbas Akhil, who developed the concept of microgrids for military instal- lations * Merrill Smith, U.S. Department of Energy SPIDERS Program Manager * Ross Roley and Rich Trundy from U.S. Pacific Command * Bill Waugaman and Bill Beary from U.S. Northern Command * Tarek Abdallah, Melanie

  15. Technology Entreprenurship in the Changing Business Environment – A Triple Helix Performance Model

    Directory of Open Access Journals (Sweden)

    Maja Levi Jaksić

    2015-02-01

    Full Text Available In this paper the contribution of technology management and entrepreneurship to sustainable development is emphasized and the Triple Helix (TH model is used to analyse the performance of different actors in accomplishing the activities of Technology Innovation Management and Entrepreneurship (TIME. By analysing TH model (Government – University – Industry in relation to accomplishing TIME main functions: Planning, Organizing and Control (POC, we created a general model which measures TIME effectiveness related to the key elements of the TH model. The general model – TMD-TH (Technology Management and Development – Triple Helix represents the framework for further more specific research into the relations of the observed dimensions. From the general model, three sub-models are excluded: TMD-G (Government, TMD-U (University and TMD-I (Industry, and each of TH dimensions is observed by a set of indicators classified from the perspective of the specific function (POC of TIME. This provides better categorization of TIME indicators and linkage with the actors in the TH model. The applicability of the suggested general model was tested by a set of indicators at the example of Serbia, Austria and Finland and comparison of these countries was made from a perspective of innovativeness and sustainable development. Since technology, innovation and entrepreneurship are considered as the main forces leading to sustainable development at different levels of the economy and society, it is of paramount importance to develop our capacities to better monitor, analyse and develop these forces. A model is developed with a set of indicators that enables the systematic analysis in concrete situations in practice. In this paper, the model is applied at the level of the national economy, the results obtained point to the most critical activities of the actors in the TH model in accomplishing TIME. The performance model represents a base for developing policies

  16. Do 'enabling technologies' affect customer performance in price-responsive load programs?

    Energy Technology Data Exchange (ETDEWEB)

    Goldman, Charles A.; Kintner-Meyer, Michael; Heffner, Grayson

    2002-05-15

    Price-responsive load (PRL) programs vary significantly in overall design, the complexity of relationships between program administrators, load aggregators, and customers, and the availability of ''enabling technologies''. Enabling technologies include such features as web-based power system and price monitoring, control and dispatch of curtailable loads, communications and information systems links to program participants, availability of interval metering data to customers in near real time, and building/facility/end-use automation and management capabilities. Two state agencies - NYSERDA in New York and the CEC in California - have been conspicuous leaders in the demonstration of demand response (DR) programs utilizing enabling technologies. In partnership with key stakeholders in these two states (e.g., grid operator, state energy agencies, and program administrators), Lawrence Berkeley National Laboratory (LBNL) and Pacific Northwest National Laboratory (PNNL) surveyed 56 customers who worked with five contractors participating in CEC or NYSERDA-sponsored DR programs. We combined market research and actual load curtailment data when available (i.e., New York) or customer load reduction targets in order to explore the relative importance of contractor's program design features, sophistication of control strategies, and reliance on enabling technologies in predicting customer's ability to deliver load reductions in DR programs targeted to large commercial/industrial customers. We found preliminary evidence that DR enabling technology has a positive effect on load curtailment potential. Many customers indicated that web-based energy information tools were useful for facilitating demand response (e.g., assessing actual performance compared to load reduction contract commitments), that multiple notification channels facilitated timely response, and that support for and use of backup generation allowed customers to achieve significant

  17. Effects of Market, E-Marketing, and Technology Orientations on Innovativeness and Performance in Turkish Health Organizations.

    Science.gov (United States)

    Mutlu, Hanifi Murat; Sürer, Atilla

    2015-01-01

    This article investigates the effects of strategic orientation on innovativeness and performance in health organizations in Turkey. We hypothesize that market, e-marketing, and technology orientations positively affect innovativeness and performance. Market and technology orientations are found not have a significant effect on performance, but e-marketing orientation and innovativeness have a significant and positive effect. We also investigate indirect effects on innovativeness and performance. The analyses of direct and indirect effects are an important contribution to understanding relationships among research variables.

  18. Effects of market, e-marketing, and technology orientations on innovativeness and performance in Turkish health organizations.

    Science.gov (United States)

    Mutlu, Hanifi Murat; Sürer, Atilla

    2016-01-01

    This article investigates the effects of strategic orientation on innovativeness and performance in health organizations in Turkey. We test hypotheses that market, e-marketing, and technology orientations positively affect innovativeness and performance. Market and technology orientations are found not have a significant effect on performance, but e-marketing orientation and innovativeness have a significant and positive effect. We also investigate indirect effects on innovativeness and performance. The analyses of direct and indirect effects are an important contribution to understanding relationships among research variables.

  19. Performance of triple bagging hermetic technology for postharvest storage of cowpea grain in Niger

    KAUST Repository

    Baoua, Ibrahim B.

    2012-10-01

    Triple bagging technology for protecting postharvest cowpea grain from losses to the bruchid, Callosobruchus maculatus Fabricius (Coleoptera: Chrysomelidae: Bruchinae) is currently being adopted on a fairly large scale in ten West and Central African countries, including Niger. The triple bag consists of two inner high-density polyethylene bags acting as oxygen barriers, which in turn are encased in an outer woven polypropylene bag that serves primarily for mechanical strength. These hermetic bags, available in either 50 or 100 kg capacity, are called Purdue Improved Cowpea Storage (PICS) bags. Adoption of PICS technology in West and Central Africa has been driven by its effectiveness, simplicity, low cost, durability, and manufacture within the region. From surveys on adoption we discovered that farmers have begun to re-use bags they had used the previous year or even the previous two years. In the present study, we compared the performance of three different types of PICS bags: (1) new 50 kg (2) new 100 kg bags and (3) once-used 50 kg bags, all filled with naturally infested untreated cowpeas. In these PICS bags the O 2 levels within the bags initially fell to about 3 percent (v/v) while the CO 2 rose to nearly 5 percent (v/v). After five months of storage, new and used 50 kg bags and new 100 kg bags preserved the grain equally well. There were greatly reduced numbers of adults and larvae in the PICS bags versus the controls, which consisted of grain stored in single layer woven bags. The proportion of grain having C. maculatus emergence holes after five months of storage in PICS bags was little changed from that found when the grain was first put into the bags. The PICS technology is practical and useful in Sahelian conditions and can contribute to improved farmers\\' incomes as well as increase availability of high quality, insecticide-free cowpea grain as food. © 2012 Elsevier Ltd.

  20. A longitudinal cross-level model of leader and salesperson influences on sales force technology use and performance.

    Science.gov (United States)

    Mathieu, John; Ahearne, Michael; Taylor, Scott R

    2007-03-01

    The authors examined the influence of the introduction of a new suite of technology tools on the performance of 592 salespersons. They hypothesized that the salespersons' work experience would have a negative effect on their technology self-efficacy, which in turn would relate positively to their use of technology. Sales performance was hypothesized to be positively related to both past performance and the use of new technology tools. Further, the authors hypothesized that leaders' commitment to sales technology would enhance salespersons' technology self-efficacy and usage, and leaders' empowering behaviors would influence salespersons' technology self-efficacy and moderate the individual-level relationships. Hierarchical linear modeling analyses confirmed all of the hypothesized individual-level relationships and most of the cross-level relationships stemming from average leader behaviors. In particular, empowering leadership exhibited multiple cross-level interactions, as anticipated. Results are discussed in terms of the importance of social-psychological factors related to the success of sales force technology interventions.

  1. Advanced Technology Development Program for Lithium-Ion Batteries: Gen 2 Performance Evaluation Final Report

    Energy Technology Data Exchange (ETDEWEB)

    Jon P. Christophersen; Ira Bloom; Edward V. Thomas; Kevin L. Gering; Gary L. Henriksen; Vincent S. Battaglia; David Howell

    2006-07-01

    The Advanced Technology Development Program has completed performance testing of the second generation of lithium-ion cells (i.e., Gen 2 cells). The 18650-size Gen 2 cells, with a baseline and variant chemistry, were distributed over a matrix consisting of three states-of-charge (SOCs) (60, 80, and 100% SOC), four temperatures (25, 35, 45, and 55°C), and three life tests (calendar-, cycle-, and accelerated-life). The calendar- and accelerated-life cells were clamped at an open-circuit voltage corresponding to the designated SOC and were subjected to a once-per-day pulse profile. The cycle-life cells were continuously pulsed using a profile that was centered around 60% SOC. Life testing was interrupted every four weeks for reference performance tests (RPTs), which were used to quantify changes in cell degradation as a function of aging. The RPTs generally consisted of C1/1 and C1/25 static capacity tests, a low-current hybrid pulse power characterization test, and electrochemical impedance spectroscopy. The rate of cell degradation generally increased with increasing test temperature, and SOC. It was also usually slowest for the calendar-life cells and fastest for the accelerated-life cells. Detailed capacity-, power-, and impedance-based performance results are reported.

  2. Advanced Technology Development Program for Lithium-Ion Batteries: Gen 2 Performance Evaluation Final Report

    Energy Technology Data Exchange (ETDEWEB)

    Jon P. Christophersen; Ira Bloom; Edward V. Thomas; Kevin L. Gering; Gary L. Henriksen; Vincent S. Battaglia; David Howell

    2006-07-01

    The Advanced Technology Development Program has completed performance testing of the second generation of lithium-ion cells (i.e., Gen 2 cells). The 18650-size Gen 2 cells, with a baseline and variant chemistry, were distributed over a matrix consisting of three states-of-charge (SOCs) (60, 80, and 100% SOC), four temperatures (25, 35, 45, and 55°C), and three life tests (calendar-, cycle-, and accelerated-life). The calendar- and accelerated-life cells were clamped at an open-circuit voltage corresponding to the designated SOC and were subjected to a once-per-day pulse profile. The cycle-life cells were continuously pulsed using a profile that was centered around 60% SOC. Life testing was interrupted every four weeks for reference performance tests (RPTs), which were used to quantify changes in cell degradation as a function of aging. The RPTs generally consisted of C1/1 and C1/25 static capacity tests, a low-current hybrid pulse power characterization test, and electrochemical impedance spectroscopy. The rate of cell degradation generally increased with increasing test temperature, and SOC. It was also usually slowest for the calendar-life cells and fastest for the accelerated-life cells. Detailed capacity-, power-, and impedance-based performance results are reported.

  3. Technological performance and alliances over the industry life cycle : Evidence from the ASIC industry

    NARCIS (Netherlands)

    Vanhaverbeke, W.P.M.; Belderbos, R.; Duijsters, Geert; Beerkens, B.E.

    2015-01-01

    Technology development in firms is frequently based on a combination of internal and external technological learning. Consequently, firms need to develop both technological capital (a patent portfolio) and alliance capital (a portfolio of technology alliances). This paper examines the relationship b

  4. Evaluating Instructor Technology Integration in Community and Technical Colleges: A Performance Evaluation Matrix

    Science.gov (United States)

    Del Favero, Marietta; Hinson, Janice M.

    2007-01-01

    The press for implementing technology based instructional delivery systems in community and technical colleges is well documented. Yet faculty face numerous challenges in integrating technology into instruction (AL-Bataineh & Brooks, 2003; Groves & Zemel, 2000; Khoury, 1997). Stimulating faculty ownership in technology, diffusion of technology use…

  5. Performance Criteria for Capture and/or Immobilization Technologies - Milestone Report

    Energy Technology Data Exchange (ETDEWEB)

    Bruffey, Stephanie H. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Jubin, Robert Thomas [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Spencer, Barry B. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Soelberg, Nick [Idaho National Lab. (INL), Idaho Falls, ID (United States); Riley, Brian [Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

    2016-02-01

    The capture and subsequent immobilization of the four regulated volatile radionuclides (3H, 14C, 85Kr, and 129I) from the off-gas streams of a used nuclear fuel (UNF) reprocessing facility has been a topic of substantial research interest for the US Department of Energy and its international colleagues. Removal of some or all of these radionuclides (e.g., based upon fuel burnup, fuel type, cooling time) from the plant effluent streams prior to discharge to the environment is required to meet regulations set forth by the US Environmental Protection Agency. Upon removal, the radionuclide, as well as associated sorbents that cannot be cost-effectively regenerated, is destined for conversion to a waste form. Research in separation and capture methodologies has included a wide range of technologies, including liquid caustic scrubbing systems, solid adsorbents, and cryogenic distillation. The studies of waste forms have been correspondingly diverse. In considering the technologies available for future development and implementation of both sorbents and waste forms, it is necessary to identify benchmark measures of performance to evaluate objectively each sorbent system or waste form.

  6. Advanced Technology Development Program for Lithium-Ion Batteries: Gen 2 GDR Performance Evaluation Report

    Energy Technology Data Exchange (ETDEWEB)

    Jon P. Christophersen; Chinh D. Ho; Gary L. Henriksen; David Howell

    2006-07-01

    The Advanced Technology Development Program has completed the performance evaluation of the second generation of lithium-ion cells (i.e., Gen 2 cells). This report documents the testing and analysis of the Gen 2 GDR cells, which were used to learn and debug the newly developed Technology Life Verification Test Manual. The purpose of the manual is to project a 15-year, 150,000 mile battery life capability with a 90% confidence interval using predictive models and short-term testing. The GDR cells were divided into two different matrices. The core-life test matrix consisted of calendar- and cycle-life cells with various changes to the four major acceleration factors (temperature, state-of-charge, throughput, and power rating). The supplemental-life test matrix consisted of cells subjected either to a path dependence study, or a comparison between the standard hybrid pulse power characterization test and the newly-developed minimum pulse power characterization test. Resistance and capacity results are reported.

  7. Development of Ubiquitous Simulation Service Structure Based on High Performance Computing Technologies

    Institute of Scientific and Technical Information of China (English)

    Sang-Hyun CHO; Jeong-Kil CHOI

    2008-01-01

    The simulation field became essential in designing or developing new casting products and in improving manufacturing processes within limited time, because it can help us to simulate the nature of processing, so that developers can make ideal casting designs. To take the prior occupation at commercial simulation market, so many development groups in the world are doing their every effort. They already reported successful stories in manufacturing fields by developing and providing the high performance simulation technologies for multipurpose. But they all run at powerful desk-side computers by well-trained experts mainly, so that it is hard to diffuse the scientific designing concept to newcomers in casting field. To overcome upcoming problems in scientific casting designs, we utilized information technologies and full-matured hardware backbones to spread out the effective and scientific casting design mind, and they all were integrated into Simulation Portal on the web. It professes scientific casting design on the NET including ubiquitous access way represented by "Anyone, Anytime, Anywhere" concept for casting designs.

  8. Performance of almost edgeless silicon detectors in CTS and 3D-planar technologies

    Science.gov (United States)

    Alagoz, E.; Anelli, G.; Antchev, G.; Avati, V.; Bassetti, V.; Berardi, V.; Boccone, V.; Bozzo, M.; Brücken, E.; Buzzo, A.; Catanesi, M. G.; Cuneo, S.; Da Vià, C.; Deile, M.; Dinapoli, R.; Eggert, K.; Eremin, V.; Ferro, F.; Hasi, J.; Haug, F.; Heino, J.; Jarron, P.; Kalliopuska, J.; Kašpar, J.; Kenney, C.; Kok, A.; Kundrát, V.; Kurvinen, K.; Lauhakangas, R.; Lippmaa, E.; Lokajíček, M.; Luntama, T.; Macina, D.; Macrí, M.; Minutoli, S.; Mirabito, L.; Niewiadomski, H.; Noschis, E.; Oljemark, F.; Orava, R.; Oriunno, M.; Österberg, K.; Parker, S.; Perrot, A.-L.; Radermacher, E.; Radicioni, E.; Ruggiero, G.; Saarikko, H.; Santroni, A.; Sette, G.; Siegrist, P.; Smotlacha, J.; Snoeys, W.; Taylor, C.; Watts, S.; Whitmore, J.

    2013-06-01

    The physics programme of the TOTEM experiment requires the detection of very forward protons scattered by only a few microradians out of the LHC beams. For this purpose, stacks of planar Silicon detectors have been mounted in moveable near-beam telescopes (Roman Pots) located along the beamline on both sides of the interaction point. In order to maximise the proton acceptance close to the beams, the dead space at the detector edge had to be minimised. During the detector prototyping phase, different sensor technologies and designs have been explored. A reduction of the dead space to less than 50 μm has been accomplished with two novel silicon detector technologies: one with the Current Terminating Structure (CTS) design and one based on the 3D edge manufacturing. This paper describes performance studies on prototypes of these detectors, carried out in 2004 in a fixed-target muon beam at CERN's SPS accelerator. In particular, the efficiency and accuracy in the vicinity of the beam-facing edges are discussed.

  9. Piezoelectronics: a novel, high-performance, low-power computer switching technology

    Science.gov (United States)

    Newns, D. M.; Martyna, G. J.; Elmegreen, B. G.; Liu, X.-H.; Theis, T. N.; Trolier-McKinstry, S.

    2012-06-01

    Current switching speeds in CMOS technology have saturated since 2003 due to power constraints arising from the inability of line voltage to be further lowered in CMOS below about 1V. We are developing a novel switching technology based on piezoelectrically transducing the input or gate voltage into an acoustic wave which compresses a piezoresistive (PR) material forming the device channel. Under pressure the PR undergoes an insulator-to-metal transition which makes the channel conducting, turning on the device. A piezoelectric (PE) transducer material with a high piezoelectric coefficient, e.g. a domain-engineered relaxor piezoelectric, is needed to achieve low voltage operation. Suitable channel materials manifesting a pressure-induced metal-insulator transition can be found amongst rare earth chalcogenides, transition metal oxides, etc.. Mechanical requirements include a high PE/PR area ratio to step up pressure, a rigid surround material to constrain the PE and PR external boundaries normal to the strain axis, and a void space to enable free motion of the component side walls. Using static mechanical modeling and dynamic electroacoustic simulations, we optimize device structure and materials and predict performance. The device, termed a PiezoElectronic Transistor (PET) can be used to build complete logic circuits including inverters, flip-flops, and gates. This "Piezotronic" logic is predicted to have a combination of low power and high speed operation.

  10. Effect of Field Trip On Students’ Academic Performance in Basic Technology in Ilorin Metropolis, Nigeria

    Directory of Open Access Journals (Sweden)

    Abdul Ganiyu Alasela Amosa

    2015-04-01

    Full Text Available The use of field trip in teaching and learning helps to bring about effective and efficient learning in Basic Technology. Field trip is a group excursion away from the normal education environment for firsthand experience of an historic site or place of special interest. This study therefore was geared toward finding out the effect of field trip on students’ academic performance in learning practical skills in Basic Technology in Ilorin, Nigeria. A pre‐test, post‐test and control group quasi‐experimental design was adopted for this study. Two sampled upper basic Schools were selected from Ilorin East Local Government Area of Kwara State using purposive sampling technique. The two sampled upper basic Schools comprised 50 students who were randomly assigned to treatment (25 students and control (25 students groups. Analysis of Co‐variance (ANCOVA was used to analyze the data collected. The findings revealed that at significant level, the value produced F (2, 22 = 3.44 > 0.109 Therefore, hypothesis one was rejected. Also, at 0.05 significant level, the value produced F (2, 9 = 4.26 > 0.433. Therefore, hypothesis two was rejected. Based on the findings, it was recommended among others that; teachers should take students on field trip so as to promote and encourage active engagement in learning, self‐motivation, discovery learning and learning by experience.

  11. The Impact of Technology, Job Complexity and Religious Orientation on Managerial Performance

    Directory of Open Access Journals (Sweden)

    Jesmin Islam

    2011-12-01

    Full Text Available This paper explores the impact of technology, job complexity and religious orientation on the performance of managers in the financial services industries. Data were collected from bank managers representing Islamic and conventional banks in Bangladesh. Path models were used to analyse the data. The results provide supportfor the hypothesis that a management accounting systems (MAS adequacy gap exists in the financial sector in a developing country such as Bangladesh. These Islamic and conventional banks also experienced varied outcomes regarding the impact of the MAS adequacy gap on managerial effectiveness. Significant results emerged concerning the direct influence of technology and job complexity on managerial effectiveness, although these findings again differed across religious and conventional banks. Significant intervening effects of both MAS adequacy gap and job complexity on the relationships between contingency factors and managers' effectiveness were also found. Overall the findings showed that the type of religious orientation in Islamic banks wielded an important influence on the sensitivity of the MAS adequacy gap. Religious orientation served as a control device for the relationships between job-related contingency factors andmanagerial effectiveness.

  12. Objective test and performance measurement of automotive crash warning systems

    Science.gov (United States)

    Szabo, S.; Norcross, R. J.; Falco, J. A.

    2007-04-01

    The National Institute of Standards and Technology (NIST), under an interagency agreement with the United States Department of Transportation (DOT), is supporting development of objective test and measurement procedures for vehicle-based warning systems intended to warn an inattentive driver of imminent rear-end, road-departure and lane-change crash scenarios. The work includes development of track and on-road test procedures, and development of an independent measurement system, which together provide data for evaluating warning system performance. This paper will provide an overview of DOT's Integrated Vehicle-Based Safety System (IVBSS) program along with a review of the approach for objectively testing and measuring warning system performance.

  13. Results of the PEP`93 intercomparison of reference cell calibrations and newer technology performance measurements

    Energy Technology Data Exchange (ETDEWEB)

    Osterwald, C.R.; Emery, K. [National Renewable Energy Lab., Golden, CO (United States); Anevsky, S. [All-Union Research Inst. for Optophysical Measurements, Moscow (Russian Federation)] [and others

    1996-05-01

    This paper presents the results of an international intercomparison of photovoltaic (PV) performance measurements and calibrations. The intercomparison, which was organized and operated by a group of experts representing national laboratories from across the globe (i.e., the authors of this paper), was accomplished by circulating two sample sets. One set consisted of twenty silicon reference cells that would, hopefully, form the basis of an international PV reference scale. A qualification procedure applied to the calibration results gave average calibration numbers with an overall standard deviation of less than 2% for the entire set. The second set was assembled from a wide range of newer technologies that present unique problems for PV measurements. As might be expected, these results showed much larger differences among laboratories. Methods were then identified that should be used to measure such devices, along with problems to avoid.

  14. A performance study of live VM migration technologies: VMotion vs XenMotion

    Science.gov (United States)

    Feng, Xiujie; Tang, Jianxiong; Luo, Xuan; Jin, Yaohui

    2011-12-01

    Due to the growing demand of flexible resource management for cloud computing services, researches on live virtual machine migration have attained more and more attention. Live migration of virtual machine across different hosts has been a powerful tool to facilitate system maintenance, load balancing, fault tolerance and so on. In this paper, we use a measurement-based approach to compare the performance of two major live migration technologies under certain network conditions, i.e., VMotion and XenMotion. The results show that VMotion generates much less data transferred than XenMotion when migrating identical VMs. However, in network with moderate packet loss and delay, which are typical in a VPN (virtual private network) scenario used to connect the data centers, XenMotion outperforms VMotion in total migration time. We hope that this study can be helpful in choosing suitable virtualization environments for data center administrators and optimizing existing live migration mechanisms.

  15. A review of performance standards to monitor, evaluate and assess the impact of technology transfer offices

    Directory of Open Access Journals (Sweden)

    Sibongile Gumbi

    2010-07-01

    Full Text Available The conversion of scientific discoveries to new products and processes and their launch onto the market can be a lengthy process. Similarly, it takes many years before the impact of scientific research on society and the economy is realised and a further length of time before its performance can be measured. Higher education and research institutions, and their governments, often make significant investments into intellectual property management and technology transfer activities through legislative and policy development, human resource development, financial allocation and infrastructure improvement. Since returns on such investments are not immediately apparent, it is important to establish a means by which the impact of their efforts can be determined. In this paper, I examined the measures and indicators that could be developed by institutions and their stakeholders in order to monitor, evaluate and determine the impact of research output and outcomes on the market.

  16. Dual-fuel natural gas/diesel engines: Technology, performance, and emissions

    Science.gov (United States)

    Turner, S. H.; Weaver, C. S.

    1994-11-01

    An investigation of current dual-fuel natural gas/diesel engine design, performance, and emissions was conducted. The most pressing technological problems associated with dual-fuel engine use were identified along with potential solutions. It was concluded that dual-fuel engines can achieve low NO(sub x) and particulate emissions while retaining fuel-efficiency and BMEP levels comparable to those of diesel engines. The investigation also examined the potential economic impact of dual-fuel engines in diesel-electric locomotives, marine vessels, farm equipment, construction, mining, and industrial equipment, and stand-alone electricity generation systems. Recommendations for further additional funding to support research, development, and demonstration in these applications were then presented.

  17. Information Technology, Human Resources Management Systems and Firm Performance: An Empirical Analysis from Spain

    Directory of Open Access Journals (Sweden)

    Pilar Ficapal-Cusí

    2011-04-01

    Full Text Available This research paper uses survey data on 1.518 Catalan firms (in Spain, with capital in Barcelona to examine the relationship between IT use, innovative human resources management systems (IHRMS and firm’s performance. Using factor and cluster analysis, we find that only one-third of Catalan firms use IHRMS. Using association analysis we find that firms that adopt IHMRS are more internationalised; show grater ability to adapt to the change environment, to innovate and to collaborate; focuses product/service differentiation strategy enhancing quality; apply a greater degree of new forms of work organization; use IT more intensively; and invest more in training their employees Using regression analysis, we find that features which are structural, technological, strategic, organisational and result-related explain the adoption of IHRMS.

  18. Critical transport rates that limit the performance of microbial electrochemistry technologies.

    Science.gov (United States)

    Popat, Sudeep C; Torres, César I

    2016-09-01

    Microbial electrochemistry technologies (METs) take advantage of the connection of microorganisms with electrodes. In the classic case of a microbial anode, the maximization of current density produced is often the goal. But, current production is dependent on many transport processes occurring, which can be rate-limiting. These include the fluxes of electron donor and acceptor, the ionic flux, the acidity and alkalinity fluxes at anode and cathode respectively, the electron transport flux at the biofilm, and the reactant/product crossover flux. Associated with these fluxes are inherent concentration gradients that can affect performance. This critical review provides an analysis on how these transport processes have hindered the development of METs, and how MET designs have evolved as more knowledge of these transport limitations is gained. Finally, suggestions are provided on how to design MET systems taking into consideration critical transport processes that are intimately linked to the current produced.

  19. Information Technology, Human Resources Management Systems and Firm Performance: An Empirical Analysis from Spain

    Directory of Open Access Journals (Sweden)

    Pilar Ficapal-Cusí

    2011-04-01

    Full Text Available This research paper uses survey data on 1.518 Catalan firms (in Spain, with capital in Barcelona to examine the relationship between IT use, innovative human resources management systems (IHRMS and firm’s performance. Using factor and cluster analysis, we find that only one-third of Catalan firms use IHRMS. Using association analysis we find that firms that adopt IHMRS are more internationalised; show grater ability to adapt to the change environment, to innovate and to collaborate; focuses product/service differentiation strategy enhancing quality; apply a greater degree of new forms of work organization; use IT more intensively; and invest more in training their employees Using regression analysis, we find that features which are structural, technological, strategic, organisational and result-related explain the adoption of IHRMS.

  20. Transport Schemes for Fiber-Wireless Technology: Transmission Performance and Energy Efficiency

    Directory of Open Access Journals (Sweden)

    Christina Lim

    2014-04-01

    Full Text Available Fiber-wireless technology has been actively researched as a potential candidate for next generation broadband wireless signal distribution. Despite the popularity, this hybrid scheme has many technical challenges that impede the uptake and commercial deployment. One of the inherent issues is the transport of the wireless signals over a predominantly digital optical network in today’s telecommunication infrastructure. Many different approaches have been introduced and demonstrated with digitized RF transport of the wireless signals being the most compatible with the existing optical fiber networks. In this paper, we review our work in the area of digitized RF transport to address the inherent issues related to analog transport in the fiber-wireless links and compare the transmission performance and energy efficiency with the other transport strategies.

  1. Assessment of advanced technologies for high performance single-engine business airplanes

    Science.gov (United States)

    Kohlman, D. L.; Holmes, B. J.

    1982-01-01

    The prospects for significantly increasing the fuel efficiency and mission capability of single engine business aircraft through the incorporation of advanced propulsion, aerodynamics and materials technologies are explored. It is found that turbine engines cannot match the fuel economy of the heavier rotary, diesel and advanced spark reciprocating engines. The rotary engine yields the lightest and smallest aircraft for a given mission requirement, and also offers greater simplicity and a multifuel capability. Great promise is also seen in the use of composite material primary structures in conjunction with laminar flow wing surfaces, a pusher propeller and conventional wing-tail configuration. This study was conducted with the General Aviation Synthesis Program, which can furnish the most accurate mission performance calculations yet obtained.

  2. Performance of PILATUS detector technology for long-wavelength macromolecular crystallography

    Science.gov (United States)

    Marchal, J.; Wagner, A.

    2011-05-01

    The long-wavelength MX beamline I23 currently under design at Diamond Light Source will be optimized in the X-ray energy range between 3 and 5 keV. At the moment no commercial off-the-shelf detector with high quantum efficiency and dynamic range is available to cover the large area required for diffraction experiments in this energy range. The hybrid pixel detector technology used in PILATUS detectors could overcome these limitations as the modular design could allow a large coverage in reciprocal space and high detection efficiency. Experiments were carried out on the Microfocus Spectroscopy beamline I18 at Diamond Light Source to test the performance of a 100K PILATUS module in the low-energy range from 2.3 to 3.7 keV.

  3. Information Technology Service Management with Cloud Computing Approach to Improve Administration System and Online Learning Performance

    Directory of Open Access Journals (Sweden)

    Wilianto Wilianto

    2015-10-01

    Full Text Available This work discusses the development of information technology service management using cloud computing approach to improve the performance of administration system and online learning at STMIK IBBI Medan, Indonesia. The network topology is modeled and simulated for system administration and online learning. The same network topology is developed in cloud computing using Amazon AWS architecture. The model is designed and modeled using Riverbed Academic Edition Modeler to obtain values of the parameters: delay, load, CPU utilization, and throughput. The simu- lation results are the following. For network topology 1, without cloud computing, the average delay is 54  ms, load 110 000 bits/s, CPU utilization 1.1%, and throughput 440  bits/s.  With  cloud  computing,  the  average  delay  is 45 ms,  load  2 800  bits/s,  CPU  utilization  0.03%,  and throughput 540 bits/s. For network topology 2, without cloud computing, the average delay is 39  ms, load 3 500 bits/s, CPU utilization 0.02%, and throughput database server 1 400 bits/s. With cloud computing, the average delay is 26 ms, load 5 400 bits/s, CPU utilization email server 0.0001%, FTP server 0.001%, HTTP server 0.0002%, throughput email server 85 bits/s, FTP    server 100 bits/sec, and HTTP server 95  bits/s.  Thus,  the  delay, the load, and the CPU utilization decrease; but,  the throughput increases. Information technology service management with cloud computing approach has better performance.

  4. Structural capital, innovation capability, and company performance in technology-based colombian firms

    Directory of Open Access Journals (Sweden)

    Nekane Aramburu

    2015-03-01

    Full Text Available In today’s economy, innovation is considered to be one of the main driving forces behind business competitiveness, if not the most relevant one. Traditionally, the study of innovation has been addressed from different perspectives. Recently, literature on knowledge management and intellectual capital has provided new insights. Considering this, the aim of this paper is to analyze the impact of different organizational conditions – i.e. “structural capital” – on innovation capability and innovation performance, from an “intellectual capital” (IC perspective. As regards innovation capability, two dimensions are considered: new idea generation and innovation project management. The population subject to study is made up of technology-based Colombian firms. In order to gather information about the relevant variables involved in the research, a questionnaire was designed and addressed to the CEOs of the companies making up the target population. The sample analyzed is made up of 69 companies and is large enough to carry out a statistical study based on structural equation modelling (partial least squares approach using PLS-Graph software (Chin and Frye, 2003. The results obtained show that structural capital explains to a great extent both the effectiveness of the new idea generation process and of innovation project management. However, the influence of each specific organizational component making up structural capital (organizational design, organizational culture, hiring and professional development policies, innovation strategy, technological capital, and external structure varies. Moreover, successful innovation project management is the only innovation capability dimension that exerts a significant impact on company performance.

  5. Performing arts as a social technology for community health promotion in northern Ghana

    Directory of Open Access Journals (Sweden)

    Michael Frishkopf

    2016-02-01

    Full Text Available Objective: We present first-phase results of a performing arts public health intervention, ‘Singing and Dancing for Health,’ aiming to promote healthier behaviors in Ghana’s impoverished Northern Region. We hypothesize that live music and dance drama provide a powerful technology to overcome barriers such as illiteracy, lack of adequate media access, inadequate health resources, and entrenched sociocultural attitudes. Our research objective is to evaluate this claim. Methods: In this first phase, we evaluated the effectiveness of arts interventions in improving knowledge and behaviors associated with reduced incidence of malaria and cholera, focusing on basic information and simple practices, such as proper hand washing. Working with the Youth Home Cultural Group, we codeveloped two ‘dance dramas’ delivering health messages through dialog, lyrics, and drama, using music and dance to attract spectators, focus attention, infuse emotion, and socialize impact. We also designed knowledge, attitude, and behavior surveys as measurement instruments. Using purposive sampling, we selected three contrasting test villages in the vicinity, contrasting in size and demographics. With cooperation of chiefs, elders, elected officials, and Ghana Health Service officers, we conducted a baseline survey in each village. Next, we performed the interventions, and subsequently conducted follow-up surveys. Using a more qualitative approach, we also tracked a select subgroup, conducted focus group studies, and collected testimonials. Surveys were coded and data were analyzed by Epi Info. Results: Both quantitative and qualitative methods indicated that those who attended the dance drama performances were likelier than those who did not attend to list the causal, preventive, and transmission factors of malaria and cholera. Also, the same attendees were likelier than nonattendees to list some activities they do to prevent malaria, cholera, and other sanitation

  6. Teaching Technology: From Knowing to Feeling Enhancing Emotional and Content Acquisition Performance through Gardner's Multiple Intelligences Theory in Technology and Design Lessons

    Science.gov (United States)

    Sanchez-Martin, Jesus; Alvarez-Gragera, Garcia J.; Davila-Acedo, Maria Antonia; Mellado, Vicente

    2017-01-01

    Gardner's Multiple Intelligences Theory (MIT) can be a cognitive and emotional improvement if is taken into account in the standard development of the Technology lessons. This work presents a preliminary evaluation of the performance enhancement in two concomitant aspects: contents acquisition and emotional yield. The study was made on up to 150…

  7. Effects of Instructional Performance of National Open University Undergraduates in Educational Technology in Kwara State, Nigeria

    Directory of Open Access Journals (Sweden)

    A.I. Gambari

    2017-06-01

    Full Text Available Screencast is a digital video and audio recording of what occurs on a presenter's computer screen which gives learners the chance to control the pace at which they learn; thereby influencing their academic performance positively. Despite these benefits of screencast in enhancing teaching and learning in distance learning programmes, they are being adopted in Nigerian higher institutions. The research adopted the mix-method approach, using quantitative and qualitative data analyses with 50 undergraduates forming the sample for the study. Two research instruments were used to gather data in the study, namely Educational Technology Achievement Test and Screencast Attitude Questionnaire. The former was tested using split-half reliability statistics and yielded a value of 0.727, while the latter was subjected to Cronbach’s Alpha reliability statistics and yielded a value of 0.662. The research questions were answered using mean while research hypotheses 1-3 were tested using AN-COVA. Findings of this study showed that: (i there was significant difference in the performance of the experimental and the control group in favor of the experimental group; (ii there was no significant difference in the mean score performance of male and female undergraduates exposed to screencast; (iii the undergraduates that were exposed to screencast had positive attitudes toward the use of podcast; (iv there was significant difference in the retention-test performance of the experimental and the control group in favour of the exper-imental group. Based on the findings, it was recommended that courseware developers should develop and utilize screencast to supplement course materi-als.

  8. Dual-task motor performance with a tongue-operated assistive technology compared with hand operations

    Directory of Open Access Journals (Sweden)

    Johnson Ashley N

    2012-01-01

    Full Text Available Abstract Background To provide an alternative motor modality for control, navigation, and communication in individuals suffering from impairment or disability in hand functions, a Tongue Drive System (TDS has been developed that allows for real time tracking of tongue motion in an unobtrusive, wireless, and wearable device that utilizes the magnetic field generated by a miniature disk shaped magnetic tracer attached to the tip of the tongue. The purpose of the study was to compare the influence of a concurrent motor or cognitive task on various aspects of simple movement control between hand and tongue using the TDS technology. Methods Thirteen young able-bodied adults performed rapid and slow goal-directed movements of hand and tongue (with TDS with and without a concurrent motor (hand or tongue or cognitive (arithmetic and memory task. Changes in reaction time, completion time, speed, correctness, accuracy, variability of displacement, and variability of time due to the addition of a concurrent task were compared between hand and tongue. Results The influence of an additional concurrent task on motor performance was similar between the hand and tongue for slow movement in controlling their displacement. In rapid movement with a concurrent motor task, most aspects of motor performance were degraded in hand, while tongue speed during rapid continuous task was maintained. With a concurrent cognitive task, most aspects of motor performance were degraded in tongue, while hand accuracy during the rapid discrete task and hand speed during the rapid continuous task were maintained. Conclusion Rapid goal-directed hand and tongue movements were more consistently susceptible to interference from concurrent motor and cognitive tasks, respectively, compared with the other movement.

  9. The Mediating Effect of Innovation on the Relationship between Information Technology Investments and Firm Performance: An Empirical Study

    Science.gov (United States)

    Karanja, Erastus

    2011-01-01

    The last couple of decades has witnessed a plethora of research studies addressing the cause-and-effect relationship between Information Technology (IT) investments and performance at the firm level. These studies elicited mixed results between IT investments and performance which led to various points of view from IT Scholars and Practitioners.…

  10. The influence of assistive technology devices on the performance of activities by visually impaired

    Directory of Open Access Journals (Sweden)

    Suzana Rabello

    2014-04-01

    Full Text Available Objective: To establish the influence of assistive technology devices (ATDs on the performance of activities by visually impaired schoolchildren in the resource room. Methods: A qualitative study that comprised observation and an educational intervention in the resource room. The study population comprised six visually impaired schoolchildren aged 12 to 14 years old. The participants were subjected to an eye examination, prescribed ATDs comprising optical and non-optical devices, and provided an orientation on the use of computers. The participants were assessed based on eye/object distance, font size, and time to read a computer screen and printed text. Results: The ophthalmological conditions included corneal opacity, retinochoroiditis, retinopathy of prematurity, aniridia, and congenital cataracts. Far visual acuity varied from 20/200 to 20/800 and near visual acuity from 0.8 to 6 M. Telescopes, spherical lenses, and support magnifying glasses were prescribed. Three out of five participants with low vision after intervention could decrease the font size on the screen computer, and most participants (83.3% reduced their reading time at the second observation session. Relative to the printed text, all the participants with low vision were able to read text written in smaller font sizes and reduced their reading time at the second observation session. Conclusion: Reading skills improved after the use of ATDs, which allowed the participants to perform their school tasks equally to their classmates.

  11. The impact of solar cell technology on planar solar array performance

    Science.gov (United States)

    Mills, Michael W.; Kurland, Richard M.

    1989-01-01

    The results of a study into the potential impact of advanced solar cell technologies on the characteristics (weight, cost, area) of typical planar solar arrays designed for low, medium and geosynchronous altitude earth orbits are discussed. The study considered planar solar array substrate designs of lightweight, rigid-panel graphite epoxy and ultra-lightweight Kapton. The study proposed to answer the following questions: Do improved cell characteristics translate into array-level weight, size and cost improvements; What is the relative importance of cell efficiency, weight and cost with respect to array-level performance; How does mission orbital environment affect array-level performance. Comparisons were made at the array level including all mechanisms, hinges, booms, and harnesses. Array designs were sized to provide 5kW of array power (not spacecraft bus power, which is system dependent but can be scaled from given values). The study used important grass roots issues such as use of the GaAs radiation damage coefficients as determined by Anspaugh. Detailed costing was prepared, including cell and cover costs, and manufacturing attrition rates for the various cell types.

  12. Designing a performance appraisal system based on balanced scorecard for improving productivity: Case study in Semnan technology and science park

    Directory of Open Access Journals (Sweden)

    Mohammad Hemati

    2012-08-01

    Full Text Available Today, organizations for holding and improving their competing merit use performance measurement for evaluation, control, supervision and improvement of their trading processes. Medium and small companies in technology and science parks are very useful in economic revivification and technology development. Technology and science parks have provided necessary consultations, information, suitable equipments, and services for developing technology unites and prepare them for independent presence in industry. One of the necessary elements for the success and improvement of performance in these companies is to establish and implement balanced scorecard, which can be used to reach desired goals, strategies and to improve performance. In this article, we use a structured method for calculating efficiency of four perspectives of balanced scorecard. Statistical society of this research was Semnan technology and Science Park and seven experts are selected for answering questions of the survey. We also complete questionnaire and determine index and relative importance of all indices. For developing strategic goals of Semnan technology and science park according to four perspectives of balanced score card (finance, growth and learning, internal process, six meetings were hold and finally all crisis macro goals index were identified and they were analyzed for evaluating performance.

  13. Quality control and performance evaluation of k{sub 0}-based neutron activation analysis at the Portuguese research reactor

    Energy Technology Data Exchange (ETDEWEB)

    Dung, H.M., E-mail: m.hodzung@itn.p [Instituto Technologico e Nuclear, Estrada Nacional 10, 2686-953 Sacavem (Portugal); Freitas, M.C. [Instituto Technologico e Nuclear, Estrada Nacional 10, 2686-953 Sacavem (Portugal); Blaauw, M. [Reactor Institute Delft, Delft University of Technology, Mekelweg 15, 2629 JB Delft (Netherlands); Almeida, S.M.; Dionisio, I.; Canha, N.H. [Instituto Technologico e Nuclear, Estrada Nacional 10, 2686-953 Sacavem (Portugal)

    2010-10-11

    The quality control (QC) and performance evaluation for the k{sub 0}-based neutron activation analysis (k{sub 0}-NAA) at the Portuguese research reactor (RPI) has been developed with the intention of using the method to meet the demands of trace element analysis for the applications in environmental, epidemiological and nutritional studies amongst others. The QC and performance evaluation include the following aspects: (1) estimation of the overall/combined standard uncertainty from the primary uncertainty sources; (2) validation of the method using a synthetic multi-element standard (SMELS); and (3) analysis of the certified reference materials from the National Institute of Standards and Technology (USA): NIST-SRM-1633a and NIST-SRM-1648 and the reference material from the International Atomic Energy Agency: IAEA-RM-336, for the purpose of controlling the overall accuracy and precision of the analytical results. The obtained results revealed that the k{sub 0}-NAA method established at the RPI was fit for the purpose. The overall/combined standard uncertainty was estimated for elements of interest in the intended applications. The laboratory's analytical results as compared to the assigned values with the bias were less than 12% for most elements, except for a few elements which biased within 13-18%. The u-score values for most elements were less than |1.64|, except for Co, La and Ti within |1.64|-|1.96| and Sc, Cr, K and Sb within |1.96|-|2.58|. The NIST-1633a was also analyzed over 14 months for the purpose of evaluating the reproducibility of the method. The quality factors of k{sub 0}-NAA established at RPI were evaluated, proving that the method meets the requirements of trace element analysis, which is also considering the method's performance for which the k{sub 0}-NAA affords a specific, rapid and convenient capability for the intended applications.

  14. Radiation Performance of 1 Gbit DDR SDRAMs Fabricated in the 90 nm CMOS Technology Node

    Science.gov (United States)

    Ladbury, Raymond L.; Gorelick, Jerry L.; Berg, M. D.; Kim, H.; LaBel, K.; Friendlich, M.; Koga, R.; George, J.; Crain, S.; Yu, P.; Reed, R. A.

    2006-01-01

    We present Single Event Effect (SEE) and Total Ionizing Dose (TID) data for 1 Gbit DDR SDRAMs (90 nm CMOS technology) as well as comparing this data with earlier technology nodes from the same manufacturer.

  15. Technology.

    Science.gov (United States)

    Online-Offline, 1998

    1998-01-01

    Focuses on technology, on advances in such areas as aeronautics, electronics, physics, the space sciences, as well as computers and the attendant progress in medicine, robotics, and artificial intelligence. Describes educational resources for elementary and middle school students, including Web sites, CD-ROMs and software, videotapes, books,…

  16. Medical student case presentation performance and perception when using mobile learning technology in the emergency department

    Directory of Open Access Journals (Sweden)

    Matthew Tews

    2011-10-01

    Full Text Available Hand-held mobile learning technology provides opportunities for clinically relevant self-instructional modules to augment traditional bedside teaching. Using this technology as a teaching tool has not been well studied. We sought to evaluate medical students’ case presentation performance and perception when viewing short, just-in-time mobile learning videos using the iPod touch prior to patient encounters.Twenty-two fourth-year medical students were randomized to receive or not to receive instruction by video, using the iPod Touch, prior to patient encounters. After seeing a patient, they presented the case to their faculty, who completed a standard data collection sheet. Students were surveyed on their perceived confidence and effectiveness after using these videos.Twenty-two students completed a total of 67 patient encounters. There was a statistically significant improvement in presentations when the videos were viewed for the first time (p = 0.032. There was no difference when the presentations were summed for the entire rotation (p = 0.671. The reliable (alpha = 0.97 survey indicated that the videos were a useful teaching tool and gave students more confidence in their presentations.Medical student patient presentations were improved with the use of mobile instructional videos following first time use, suggesting mobile learning videos may be useful in medical student education. If direct bedside teaching is unavailable, just-in-time iPod touch videos can be an alternative instructional strategy to improve first-time patient presentations by medical students.

  17. Medical student case presentation performance and perception when using mobile learning technology in the emergency department.

    Science.gov (United States)

    Tews, Matthew; Brennan, Kimberly; Begaz, Tomer; Treat, Robert

    2011-01-01

    Hand-held mobile learning technology provides opportunities for clinically relevant self-instructional modules to augment traditional bedside teaching. Using this technology as a teaching tool has not been well studied. We sought to evaluate medical students' case presentation performance and perception when viewing short, just-in-time mobile learning videos using the iPod touch prior to patient encounters. Twenty-two fourth-year medical students were randomized to receive or not to receive instruction by video, using the iPod Touch, prior to patient encounters. After seeing a patient, they presented the case to their faculty, who completed a standard data collection sheet. Students were surveyed on their perceived confidence and effectiveness after using these videos. Twenty-two students completed a total of 67 patient encounters. There was a statistically significant improvement in presentations when the videos were viewed for the first time (p=0.032). There was no difference when the presentations were summed for the entire rotation (p=0.671). The reliable (alpha=0.97) survey indicated that the videos were a useful teaching tool and gave students more confidence in their presentations. Medical student patient presentations were improved with the use of mobile instructional videos following first time use, suggesting mobile learning videos may be useful in medical student education. Clinical educators should consider whether, in an instance where live bedside or direct interactive teaching is unavailable, using just-in-time educational videos on a handheld device might be useful as a supplemental instructional strategy.

  18. The Water Demand Management by Monitoring the Technology Performance and the Water Use Efficiency

    Directory of Open Access Journals (Sweden)

    Fraj Chemak

    2012-01-01

    Full Text Available Problem statement: Given the climate constraints and the limited resources, Tunisia has developed the irrigated sector in order to diversify the agricultural production and to meet the food needs of the population. Today the policy of water supply reaches its limits and the efforts should be turned to the management of the water demand. Within this context, this research aims to analyze the farming system, the technology performance and the water use efficiency of the irrigated farms in the Sidi Bouzid region. Approach: By monitoring the sample of 47 farms during the harvesting years 2007, 2008 and 2009 we have gathered database which involved technical and economical details. By analyzing the farming system we have identified the technology process in order to estimate the production frontier using the Data Envelopment Analysis (DEA approach. The sub-vector approach of the DEA model was used to compute the water use efficiency. Results: The empirical findings showed that farmers grow olive trees, cereal crops, forage crops and horticulture crops. During the surveyed period the share of the different crops did not change significantly. The water consumption reaches only an average of 2700 m3/ha. However, the charge of irrigation represents more than 40% out of the total expenditures. The results of the DEA model showed that 50% of farms are inefficient and the technical efficiency reaches an average of 81%. The average of the scale efficiency reached 88%. However, the water use efficiency did not exceed an average of 68%. Hence, 32% of the water currently used should be saved. Conclusion: There is a wide gap to improve skills and the ability of the farmers to achieve the best of the water use efficiency. Thus, we suggest that the state intervention is necessary not only to reduce the wasting of water but also to set up an accompanying device that reconciles water conservation and the production targets.

  19. Systematic Review of the Performance of HIV Viral Load Technologies on Plasma Samples

    Science.gov (United States)

    Sollis, Kimberly A.; Smit, Pieter W.; Fiscus, Susan; Ford, Nathan; Vitoria, Marco; Essajee, Shaffiq; Barnett, David; Cheng, Ben; Crowe, Suzanne M.; Denny, Thomas; Landay, Alan; Stevens, Wendy; Habiyambere, Vincent; Perrins, Jos; Peeling, Rosanna W.

    2014-01-01

    Background Viral load (VL) monitoring is the standard of care in developing country settings for detecting HIV treatment failure. Since 2010 the World Health Organization has recommended a phase-in approach to VL monitoring in resource-limited settings. We conducted a systematic review of the accuracy and precision of HIV VL technologies for treatment monitoring. Methods and Findings A search of Medline and Embase was conducted for studies evaluating the accuracy or reproducibility of commercially available HIV VL assays. 37 studies were included for review including evaluations of the Amplicor Monitor HIV-1 v1.5 (n = 25), Cobas TaqMan v2.0 (n = 11), Abbott RealTime HIV-1 (n = 23), Versant HIV-1 RNA bDNA 3.0 (n = 15), Versant HIV-1 RNA kPCR 1.0 (n = 2), ExaVir Load v3 (n = 2), and NucliSens EasyQ v2.0 (n = 1). All currently available HIV VL assays are of sufficient sensitivity to detect plasma virus levels at a lower detection limit of 1,000 copies/mL. Bias data comparing the Abbott RealTime HIV-1, TaqMan v2.0 to the Amplicor Monitor v1.5 showed a tendency of the Abbott RealTime HIV-1 to under-estimate results while the TaqMan v2.0 overestimated VL counts. Compared to the Amplicor Monitor v1.5, 2–26% and 9–70% of results from the Versant bDNA 3.0 and Abbott RealTime HIV-1 differed by greater than 0.5log10. The average intra and inter-assay variation of the Abbott RealTime HIV-1 were 2.95% (range 2.0–5.1%) and 5.44% (range 1.17–30.00%) across the range of VL counts (2log10–7log10). Conclusions This review found that all currently available HIV VL assays are of sufficient sensitivity to detect plasma VL of 1,000 copies/mL as a threshold to initiate investigations of treatment adherence or possible treatment failure. Sources of variability between VL assays include differences in technology platform, plasma input volume, and ability to detect HIV-1 subtypes. Monitoring of individual patients should be performed on the same

  20. Systematic review of the performance of HIV viral load technologies on plasma samples.

    Directory of Open Access Journals (Sweden)

    Kimberly A Sollis

    Full Text Available BACKGROUND: Viral load (VL monitoring is the standard of care in developing country settings for detecting HIV treatment failure. Since 2010 the World Health Organization has recommended a phase-in approach to VL monitoring in resource-limited settings. We conducted a systematic review of the accuracy and precision of HIV VL technologies for treatment monitoring. METHODS AND FINDINGS: A search of Medline and Embase was conducted for studies evaluating the accuracy or reproducibility of commercially available HIV VL assays. 37 studies were included for review including evaluations of the Amplicor Monitor HIV-1 v1.5 (n = 25, Cobas TaqMan v2.0 (n = 11, Abbott RealTime HIV-1 (n = 23, Versant HIV-1 RNA bDNA 3.0 (n = 15, Versant HIV-1 RNA kPCR 1.0 (n = 2, ExaVir Load v3 (n = 2, and NucliSens EasyQ v2.0 (n = 1. All currently available HIV VL assays are of sufficient sensitivity to detect plasma virus levels at a lower detection limit of 1,000 copies/mL. Bias data comparing the Abbott RealTime HIV-1, TaqMan v2.0 to the Amplicor Monitor v1.5 showed a tendency of the Abbott RealTime HIV-1 to under-estimate results while the TaqMan v2.0 overestimated VL counts. Compared to the Amplicor Monitor v1.5, 2-26% and 9-70% of results from the Versant bDNA 3.0 and Abbott RealTime HIV-1 differed by greater than 0.5log10. The average intra and inter-assay variation of the Abbott RealTime HIV-1 were 2.95% (range 2.0-5.1% and 5.44% (range 1.17-30.00% across the range of VL counts (2log10-7log10. CONCLUSIONS: This review found that all currently available HIV VL assays are of sufficient sensitivity to detect plasma VL of 1,000 copies/mL as a threshold to initiate investigations of treatment adherence or possible treatment failure. Sources of variability between VL assays include differences in technology platform, plasma input volume, and ability to detect HIV-1 subtypes. Monitoring of individual patients should be performed on the same

  1. Performance evaluation of UHF RFID technologies for real-time bus recognition in the Taipei Bus Station.

    Science.gov (United States)

    Own, Chung-Ming; Lee, Da-Sheng; Wang, Ti-Ho; Wang, De-Jun; Ting, Yu-Lun

    2013-06-18

    Transport stations such as airports, ports, and railways have adopted blocked-type pathway management to process and control travel systems in a one-directional manner. However, this excludes highway transportation where large buses have great variability and mobility; thus, an instant influx of numerous buses increases risks and complicates station management. Focusing on Taipei Bus Station, this study employed RFID technology to develop a system platform integrated with modern information technology that has numerous characteristics. This modern information technology comprised the following systems: ultra-high frequency (UHF) radio-frequency identification (RFID), ultrasound and license number identification, and backstage graphic controls. In conclusion, the system enabled management, bus companies, and passengers to experience the national bus station's new generation technology, which provides diverse information and synchronization functions. Furthermore, this technology reached a new milestone in the energy-saving and efficiency-increasing performance of Taiwan's buses.

  2. Innovating beyond Technology: Studies on how management innovation, co-creation and business model innovation contribute to firms' (innovation) performance

    OpenAIRE

    Heij, Kevin

    2015-01-01

    textabstractInnovation is generally considered to be a cornerstone of organizational survival in many of today’s dynamic and competitive markets. This dissertation goes beyond the dominant focus on technological innovation in innovation studies by examining how and under which conditions several major non-technological types of innovation contribute to firm performance. The five studies presented in this dissertation reveal more about how management innovation, co-creation with customers and ...

  3. Real-time electromagnetic seed drop detection for permanent implants brachytherapy: Technology overview and performance assessment.

    Science.gov (United States)

    Racine, E; Hautvast, G; Binnekamp, D; Beaulieu, L

    2016-12-01

    To describe the principles and report on the performance of a novel real-time electromagnetic (EM) seed drop detection technology for permanent implants brachytherapy procedures. A novel EM hollow needle prototype was recently developed by Philips. It possesses standard 3D tracking capability as well as a seed drop detection mechanism, both performed from a single custom built EM sensor. The detection mechanism is based on the magnetic permeability changes in the sensor as the seeds pass through. Drop position estimates are generated by the tracking information at the dropping instants. Three validation experiments were carried out in this study. First, the robustness of the detection mechanism was tested in free air with four different seed types. Detection waveforms were measured and commented. The accuracy of the seed drop position estimates was then evaluated using both 2D and 3D experiments. The procedures consisted of dropping seeds in phantoms, recording the drop position estimates, and finally registering the resulting spatial distributions on reference ones obtained by accurate modalities. Seeds were dropped on a specially designed plastic support adapted to brachytherapy template dimensions for 2D experiments, and true seed positions (reference distribution) were obtained by optical detection. In 3D experiments, seeds were dropped in edible gelatin and reference distributions were obtained by localizing the implants from CT scans of the phantoms. All four seed types were correctly detected by the needle prototype. In total, 250 seeds were dropped on the plastic support, and 96 were dropped in gelatin phantoms. The detection rate was 100% in both cases. The minimum, maximum, and average drop position errors were, respectively, 0.1(+1.6/ - 0.1), 2.9(+1.4/ - 1.5), and 0.9(+1.4/ - 0.7) mm for 2D, and 0.1(+1.0/ - 0.1), 2.1(+1.1/ - 0.8), and 0.6(+1.2/ - 0.5) mm for 3D experiments. The hollow needle prototype combines both EM tracking and automatic seed drop

  4. Silicon carbide against silicon: a comparison in terms of physical properties, technology and electrical performance of power devices

    OpenAIRE

    Locatelli, M.; Gamal, S.,

    1993-01-01

    The aim of the present paper is to give the state of the art of the silicon carbide technology by “photographing” it beside the unique technology used for power electronics that is the silicon one. The theoretical superiority of SiC physical properties on those of Si, together with the important technological advancements realized during the last decade, are the main reasons of the interest given to SiC nowadays. Concerning electrical performance, the voltage and power handling capabilities d...

  5. Evaluation of the Homogeneity of the Uranium Isotope Composition of NIST SRM 610/611 by MC-ICP-MS, MC-TIMS, and SIMS

    Directory of Open Access Journals (Sweden)

    Mindy M. Zimmer

    2014-06-01

    Full Text Available As analytical and microanalytical applications employing uranium isotope ratios increase, so does the need for reliable reference materials, particularly in the fields of geochemistry, geochronology, and nuclear forensics. We present working values for uranium isotopic data of NIST 610/611 glass, collected by multicollector inductively-coupled plasma mass spectrometry (MC-ICP-MS, multicollector thermal ionization mass spectrometry (MC-TIMS, and secondary ion mass spectrometry (SIMS. The presence of depleted U, and, in this case, measureable 236U, makes NIST 610/611 an ideal candidate for a uranium isotopic reference material for nuclear materials. We analyzed multiple chips of three different NIST 611 wafers and found no heterogeneity in 234U/238U, 235U/238U, and 236U/238U within or between the wafers, within analytical uncertainty. We determined working values and uncertainties (using a coverage factor of two using data from this study and the literature for the following U isotope ratios: 234U/238U = 9.45 × 10−6 ± 5.0 × 10−8; 235U/238U = 2.38555 × 10−3 ± 4.7 × 10−7; and 236U/238U = 4.314 × 10−5 ± 4.0 × 10−8. SIMS data show 235U/238U is reproducible to within 1% (within analytical uncertainty in a single wafer, at a scale of 25 μm. Multiple studies have demonstrated homogeneity between wafers of NIST 610 and NIST 611, thus the data reported here can be considered representative of NIST 610 as well.

  6. Impact of technological innovation on a nursing home performance and on the medication-use process safety.

    Science.gov (United States)

    Baril, Chantal; Gascon, Viviane; Brouillette, Christel

    2014-03-01

    Despite the fact that since 1985 the government of Québec increased by 5.75 % on average the amount of money spent on healthcare per year, little improvement was noted. It is obvious that an optimal use of resources is essential to reduce waiting times and provide safer and faster services to patients. The use of new technology can contribute to improve the healthcare system efficiency. Our study aims to assess the impact of a medication distribution technology on 1) the performance of a health and social services center's pharmacy, 2) the performance of one care unit in a nursing home and on 3) the medication-use process safety. To measure performance we were inspired by the Lean approach. The results show that medication distribution technology is considered as an effective way to significantly detect medication errors, to allow nurses to focus more on patients and pharmacy to react more rapidly to changes in patient medications.

  7. ASPECTS REGARDING THE ROLE OF INFORMATION TECHNOLOGIES IN THE ASSURANCE OF SUPPLY CHAIN MANAGEMENT PERFORMANCE

    Directory of Open Access Journals (Sweden)

    Ilies Radu Ovidiu

    2013-07-01

    Full Text Available This paper is intended to outline the importance of e-logistics programs, based on the new information technologies and successful e-business applications in the case of Romanian companies that activate in the production and services field, namely producers, suppliers or distributors. The redesigning of the logistic system and the reconfiguration of the supply chain management (SCM challenge the firms, especially the small ones, to explore new e-business applications, on the basis of feasibility studies before getting implemented. For a long time, firms considered that commercial changes are the last solution to resolve SCM problems, however many supply chains have been a failure. The explanation resides in the fact that a number of companies that had integrated their supply chains noticed that there was little or no response to the existing requests in this field. Although commercial changes represent an important part of Business to Business programs, actually very few managers understand the way to deal with them, which is integrating them in e-business programs. This paper outlines the companies’ need to develop e-business programs and the importance of these programs for the whole supply chain to obtain performances, taking into account that many firms that get integrated in the supply chain lack the technological capacity to implement electronic means for processing, transmitting and receiving data. One remedy might be their initiative to use Business to Business programs, with the purpose to offer easily configurable optimized networks and interactive solutions based on Web, at competitive prices. This system should have different assisting functions to help the partners of a supply chain, especially the small firms, to easily integrate up-to-date management and informational system refinement methods, in an efficient and effective way. As it has been pointed out in the paper, a major role for the enhancement of SCM performances is

  8. Scoring with composites : high performance sports technology harnessed to develop advanced oilpatch products

    Energy Technology Data Exchange (ETDEWEB)

    Smith, M.

    2001-05-01

    Fiberspar Corporation, a producer of high performance sporting goods, formed a partnership with Calgary-based Thread Tech Energy Systems Ltd. to launch a new advanced composite materials technology into the Canadian market. In 1986 Fiberspar developed its LinePipe product, a high-pressure, corrosion resistant pipe made in continuous lengths of up to eight kilometres. LinePipe consists of an inner thermoplastic pressure layer reinforced with high-strength glass or carbon fibres embedded in an epoxy matrix. It can be used for surface installations in production gathering and injection or disposal applications. A newly developed fibre-reinforced spoolable pipe is currently under development and undergoing field-testing as production tubing and coiled tubing to determine it s feasibility for permanent down-hole installations for completion orf corrosive production or injection wells, or for secondary completion of existing wells for gas-lift or velocity strings. In addition, another product called SmartPipe is also undergoing field trials. The SmartPipe incorporates fiber optics, copper signal wires, power cables and capillary tubes directly into the structural wall of the composite tubing during manufacturing. This intelligent wire provides real-time reservoir monitoring and data communication while moving oil and gas from downhole or on the surface for optimal reservoir treatments. 2 figs.

  9. LCA of emerging technologies: addressing high uncertainty on inputs' variability when performing global sensitivity analysis.

    Science.gov (United States)

    Lacirignola, Martino; Blanc, Philippe; Girard, Robin; Pérez-López, Paula; Blanc, Isabelle

    2017-02-01

    In the life cycle assessment (LCA) context, global sensitivity analysis (GSA) has been identified by several authors as a relevant practice to enhance the understanding of the model's structure and ensure reliability and credibility of the LCA results. GSA allows establishing a ranking among the input parameters, according to their influence on the variability of the output. Such feature is of high interest in particular when aiming at defining parameterized LCA models. When performing a GSA, the description of the variability of each input parameter may affect the results. This aspect is critical when studying new products or emerging technologies, where data regarding the model inputs are very uncertain and may cause misleading GSA outcomes, such as inappropriate input rankings. A systematic assessment of this sensitivity issue is now proposed. We develop a methodology to analyze the sensitivity of the GSA results (i.e. the stability of the ranking of the inputs) with respect to the description of such inputs of the model (i.e. the definition of their inherent variability). With this research, we aim at enriching the debate on the application of GSA to LCAs affected by high uncertainties. We illustrate its application with a case study, aiming at the elaboration of a simple model expressing the life cycle greenhouse gas emissions of enhanced geothermal systems (EGS) as a function of few key parameters. Our methodology allows identifying the key inputs of the LCA model, taking into account the uncertainty related to their description.

  10. Cognitive effort in direct and inverse translation performance: Insight from eye-tracking technology

    Directory of Open Access Journals (Sweden)

    Aline Ferreira

    2016-09-01

    Full Text Available http://dx.doi.org/10.5007/2175-7968.2016v36n3p60 This case study examined the translation performance of four professional translators with the aim of exploring the cognitive effort involved in direct and inverse translation. Four professional translators translated two comparable texts from English into Spanish and from Spanish into English. Eye-tracking technology was used to analyze the total time spent in each task, fixation time, and average fixation time. Fixation count in three areas of interest was measured including: source text, target text, and browser, used as an external support. Results suggested that although total time and fixation count were indicators of cognitive effort during the tasks, fixation count in the areas of interest data showed that more effort was directed toward the source text in both tasks. Overall, this study demonstrates that while more traditional measures for translation difficulty (e.g., total time indicate more effort in the inverse translation task, eye-tracking data indicate that differences in the effort applied in both directions must be carefully analyzed, mostly regarding the areas of interest.

  11. Cognitive effort in direct and inverse translation performance: Insight from eye-tracking technology

    Directory of Open Access Journals (Sweden)

    Aline Ferreira

    2016-12-01

    Full Text Available This case study examined the translation performance of four professional translators with the aim of exploring the cognitive effort involved in direct and inverse translation. Four professional translators translated two comparable texts from English into Spanish and from Spanish into English. Eye-tracking technology was used to analyze the total time spent in each task, fixation time, and average fixation time. Fixation count in three areas of interest was measured including: source text, target text, and browser, used as an external support. Results suggested that although total time and fixation count were indicators of cognitive effort during the tasks, fixation count in the areas of interest data showed that more effort was directed toward the source text in both tasks. Overall, this study demonstrates that while more traditional measures for translation difficulty (e.g., total time indicate more effort in the inverse translation task, eye-tracking data indicate that differences in the effort applied in both directions must be carefully analyzed, mostly regarding the areas of interest.

  12. Technology performance evaluation of scientific and educational activities of scientific-pedagogical staff in higher education

    Directory of Open Access Journals (Sweden)

    Bechvaya Maria, R.

    2015-12-01

    Full Text Available This paper proposes a performance assessment tool research and teaching staff on the basis of a rating system that allows for the analysis of the results of key personnel of the higher school for criteria and determine the size of incentive payments. The rating model wage researchers and teachers bases on strengthening the incentive function of wages, aimed at personalization of scientific and educational activities of employees, which in modern conditions is the most relevant for use. The functions of stimulation, such as economic, moral and social are considered. The analysis methodologies for assessing university in the world and national rankings on the basis of which formed a system of indicators for assessing the activities of academic staff of higher education is represented. The necessity of development of an information system through which it is possible to carry out comprehensive analysis, that is to monitor the number of registered employees, to determine the share indices in the total ranking, to conduct the ranking points received by employees by industry and science in the context of structural units. The proposed information system is one element of technology assessment of effectiveness of the academic staff designed to evaluate the effectiveness of their activities and incentives, allows the analysis of criteria, based on which can be applied informed management decisions regarding the development of social and labor relations in the highest school.

  13. Preparation and LSC Standardization of ''89Sr (DNP) Using the CIEMAT/NIST Method; Preparacion del ''89Sr(DNP) y calibracion por centelleo liquido, mediante el metodo CIEMAT/NIST

    Energy Technology Data Exchange (ETDEWEB)

    Rodriguez Barquero, L.; Los Arcos Merino, J. M.; Grau Malonda, A.

    1994-07-01

    A procedure for preparation of liquid scintillation counting samples of the strontium DNP complex, labelled with ''89Sr, is described, the chemical quench, the counting stability and spectral evolution of this compound is studied in six scintillators, Toluene, Toluene-alcohol, Dioxane-naphthalene, HiSafe II, Ultima- Gold and Instagel. The liquid scintillation standardization of 89Sr-DNP by the CIEMAT/NIST method, using HiSafe II and Ultima-Gold scintillators, has been carried out. The discrepancies between experimental and computed efficiencies are lower than 0.38% and 0.48%, respectively. The solution has been standardized in terms of activity concentration to an overall uncertainty of 0,38%. (Author) 10 refs.

  14. Technology

    Directory of Open Access Journals (Sweden)

    Xu Jing

    2016-01-01

    Full Text Available The traditional answer card reading method using OMR (Optical Mark Reader, most commonly, OMR special card special use, less versatile, high cost, aiming at the existing problems proposed a method based on pattern recognition of the answer card identification method. Using the method based on Line Segment Detector to detect the tilt of the image, the existence of tilt image rotation correction, and eventually achieve positioning and detection of answers to the answer sheet .Pattern recognition technology for automatic reading, high accuracy, detect faster

  15. 45 CFR 170.210 - Standards for health information technology to protect electronic health information created...

    Science.gov (United States)

    2010-10-01

    ... information—(1) General. Any encryption algorithm identified by the National Institute of Standards and Technology (NIST) as an approved security function in Annex A of the Federal Information Processing Standards... 45 Public Welfare 1 2010-10-01 2010-10-01 false Standards for health information technology...

  16. New tools and technology for the study of human performance in simulator experiments

    Energy Technology Data Exchange (ETDEWEB)

    Droeivoldsmo, Asgeir

    2003-07-01

    This thesis suggests that new tools and technology can be used for production of relevant data and insights from the study of human performance in simulator and field experiments. It examines some of the theoretical perspectives behind data collection and human performance assessment, and argues for a high resemblance of the real world and use of subject matter expertise in simulator studies. A model is proposed, suggesting that human performance measurement should be tightly coupled to the topic of study and have a close connection to the time line. This coupling requires new techniques for continuous data collection, and eye movement tracking has been identified as a promising basis for this type of measures. One way of improving realism is to create virtual environments allowing for controlling more of the environment surrounding the test subjects. New application areas for virtual environments are discussed for use in control room and field studies. The combination of wearable computing, virtual and augmented (the use of computers to overlay virtual information onto the real world) reality provides many new possibilities to present information to operators. In two experiments, virtual and augmented reality techniques were used to visualise radiation fields for operators in a contaminated nuclear environment. This way the operators could train for and execute their tasks in a way that minimised radiation exposure to the individual operator. Both experiments were successful in proving the concept of radiation visualisation. Virtual environments allow for early end-user feedback in the design and refurbishment of control room man-machine interfaces. The practical usability of VR in the control room setting was tested in two control room design experiments. The results show that with the right tools for solving the tasks under test, even desktop presentations of the virtual environment can provide sufficient resemblance of the real world. Computerised data

  17. Dynamic Control System Mode Performance of the Space Technology-7 Disturbance Reduction System

    Science.gov (United States)

    O'Donnell, James R., Jr.; Hsu, Oscar; Maghami, Peiman

    2017-01-01

    The Space Technology-7 (ST-7) Disturbance Reduction System (DRS) is an experiment package aboard the European Space Agency (ESA) LISA Pathfinder spacecraft, launched on December 3, 2015. DRS consists of three primary components: Colloidal MicroNewton Thrusters (CMNTs), an Integrated Avionics Unit (IAU), and flight-software implementing the Command and Data Handling (C&DH) and Dynamic Control System (DCS) algorithms. The CMNTs were designed to provide thrust from 5 to 30 micro Newton, with thrust controllability and resolution of 0.1 micro Newton and thrust noise of 0.1 micro Newton/(square root of (Hz)) in the measurement band from 1-30 mHz. The IAU hosts the C&DH and DCS flight software, as well as interfaces with both the CMNT electronics and the LISA Pathfinder spacecraft. When in control, the DCS uses star tracker attitude data and capacitive or optically-measured position and attitude information from LISA Pathfinder and the LISA Technology Package (LTP) to control the attitude and position of the spacecraft and the two test masses inside the LTP. After completion of the nominal ESA LISA Pathfinder mission, the DRS experiment was commissioned followed by its nominal mission. DRS operations extended over the next five months, interspersed with station keeping, anomaly resolution, and periods where control was handed back to LISA Pathfinder for them to conduct further experiments. The primary DRS mission ended on December 6, 2016, with the experiment meeting all of its Level 1 requirements. The DCS, developed at the NASA Goddard Space Flight Center, consists of five spacecraft control modes and six test mass control modes, combined into six 'DRS Mission Modes'. Attitude Control and Zero-G were primarily used to control the spacecraft during initial handover and during many of the CMNT characterization experiments. The other Mission Modes, Drag Free Low Force, 18-DOF Transitional, and 18-DOF, were used to provide drag-free control of the spacecraft about the test

  18. Energy Saving Melting and Revert Reduction Technology (E-SMARRT): Mechanical Performance of Dies

    Energy Technology Data Exchange (ETDEWEB)

    R. Allen Miller, Principal Investigator; Kabiri-Bamoradian, Contributors: Khalil; Delgado-Garza, Abelardo; Murugesan, Karthik; Ragab, Adham

    2011-09-13

    provided to NADCA for distribution to the industry. Power law based meta-models for predicting machine tie bar loading and for predicting maximum parting surface separation were successfully developed and tested against simulation results for a wide range of machines and experimental data. The models proved to be remarkably accurate, certainly well within the requirements for practical application. In addition to making die structural modeling more accessible, the work advanced the state-of-the-art by developing improved modeling of cavity pressure effects, which is typically modeled as a hydrostatic boundary condition, and performing a systematic analysis of the influence of ejector die design variables on die deflection and parting plane separation. This cavity pressure modeling objective met with less than complete success due to the limits of current finite element based fluid structure interaction analysis methods, but an improved representation of the casting/die interface was accomplished using a combination of solid and shell elements in the finite element model. This approximation enabled good prediction of final part distortion verified with a comprehensive evaluation of the dimensions of test castings produced with a design experiment. An extra deliverable of the experimental work was development of high temperature mechanical properties for the A380 die casting alloy. The ejector side design objective was met and the results were incorporated into the metamodels described above. This new technology was predicted to result in an average energy savings of 2.03 trillion BTU's/year over a 10 year period. Current (2011) annual energy saving estimates over a ten year period, based on commercial introduction in 2009, a market penetration of 70% by 2014 is 4.26 trillion BTU's/year by 2019. Along with these energy savings, reduction of scrap and improvement in casting yield will result in a reduction of the environmental emissions associated with the melting

  19. Combining experts' risk judgments on technology performance of phytoremediation: self-confidence ratings, averaging procedures, and formative consensus building.

    Science.gov (United States)

    Scholz, Roland W; Hansmann, Ralf

    2007-02-01

    Expert panels and averaging procedures are common means for coping with the uncertainty of effects of technology application in complex environments. We investigate the connection between confidence and the validity of expert judgment. Moreover, a formative consensus building procedure (FCB) is introduced that generates probability statements on the performance of technologies, and we compare different algorithms for the statistical aggregation of individual judgments. The case study refers to an expert panel of 10 environmental scientists assessing the performance of a soil cleanup technology that uses the capability of certain plants to accumulate heavy metals from the soil in the plant body (phytoremediation). The panel members first provided individual statements on the effectiveness of a phytoremediation. Such statements can support policymakers, answering the questions concerning the expected performance of the new technology in contaminated areas. The present study reviews (1) the steps of the FCB, (2) the constraints of technology application (contaminants, soil structure, etc.), (3) the measurement of expert knowledge, (4) the statistical averaging and the discursive agreement procedures, and (5) the boundaries of application for the FCB method. The quantitative statement oriented part of FCB generates terms such as: "The probability that the concentration of soil contamination will be reduced by at least 50% is 0.8." The data suggest that taking the median of the individual expert estimates provides the most accurate aggregated estimate. The discursive agreement procedure of FCB appears suitable for deriving politically relevant singular statements rather than for obtaining comprehensive information about uncertainties as represented by probability distributions.

  20. Technology Knowledge Self-Assessment and Pre-Test Performance among Digital Natives

    Science.gov (United States)

    Nelms, Keith R.

    2015-01-01

    According to education pundits, traditional-age college students are "digital natives" inherently savvy in digital technology due to their constant exposure to technology from an early age. This widely held meme is at odds with observation in the college classroom. In this research, college students in an introductory information…

  1. Lecture Capture Technology and Student Performance in an Operations Management Course

    Science.gov (United States)

    Sloan, Thomas W.; Lewis, David A.

    2014-01-01

    Lecture capture technologies (LCT) such as Echo360, Mediasite, and Tegrity have become very popular in recent years. Many studies have shown that students favor the use of such technology, but relatively little research has studied the impact of LCT on learning. This article examines two research questions: (1) whether the use of LCT actually…

  2. Lecture Capture Technology and Student Performance in an Operations Management Course

    Science.gov (United States)

    Sloan, Thomas W.; Lewis, David A.

    2014-01-01

    Lecture capture technologies (LCT) such as Echo360, Mediasite, and Tegrity have become very popular in recent years. Many studies have shown that students favor the use of such technology, but relatively little research has studied the impact of LCT on learning. This article examines two research questions: (1) whether the use of LCT actually…

  3. Technology development in road construction, how government roles affect project performance

    NARCIS (Netherlands)

    Caerteling, Jasper

    2008-01-01

    This dissertation contributes to both the academic and policy debates on the roles of government in technology development in the public sector. In the literature, there are many perspectives that deal with government’s roles in technology development. These perspectives include competition,

  4. The Effects of Risk and Size of Company on Business Performance in Information Technology Outsourcing

    Science.gov (United States)

    Balogun, Shereef Adewale

    2013-01-01

    Information technology (IT) outsourcing is a practical way to transfer information technology by industries of different firms. The problem occurs when companies outsource services to domestic and international data centers as network security issues arise. This leads to competition between companies causing the size of the company to become more…

  5. The Effects of Risk and Size of Company on Business Performance in Information Technology Outsourcing

    Science.gov (United States)

    Balogun, Shereef Adewale

    2013-01-01

    Information technology (IT) outsourcing is a practical way to transfer information technology by industries of different firms. The problem occurs when companies outsource services to domestic and international data centers as network security issues arise. This leads to competition between companies causing the size of the company to become more…

  6. Acoustic Performance of Novel Fan Noise Reduction Technologies for a High Bypass Model Turbofan at Simulated Flights Conditions

    Science.gov (United States)

    Elliott, David M.; Woodward, Richard P.; Podboy, Gary G.

    2010-01-01

    Two novel fan noise reduction technologies, over the rotor acoustic treatment and soft stator vane technologies, were tested in an ultra-high bypass ratio turbofan model in the NASA Glenn Research Center s 9- by 15-Foot Low-Speed Wind Tunnel. The performance of these technologies was compared to that of the baseline fan configuration, which did not have these technologies. Sideline acoustic data and hot film flow data were acquired and are used to determine the effectiveness of the various treatments. The material used for the over the rotor treatment was foam metal and two different types were used. The soft stator vanes had several internal cavities tuned to target certain frequencies. In order to accommodate the cavities it was necessary to use a cut-on stator to demonstrate the soft vane concept.

  7. Impact of immunization technology and assay application on antibody performance--a systematic comparative evaluation.

    Directory of Open Access Journals (Sweden)

    Michael C Brown

    Full Text Available Antibodies are quintessential affinity reagents for the investigation and determination of a protein's expression patterns, localization, quantitation, modifications, purification, and functional understanding. Antibodies are typically used in techniques such as Western blot, immunohistochemistry (IHC, and enzyme-linked immunosorbent assays (ELISA, among others. The methods employed to generate antibodies can have a profound impact on their success in any of these applications. We raised antibodies against 10 serum proteins using 3 immunization methods: peptide antigens (3 per protein, DNA prime/protein fragment-boost ("DNA immunization"; 3 per protein, and full length protein. Antibodies thus generated were systematically evaluated using several different assay technologies (ELISA, IHC, and Western blot. Antibodies raised against peptides worked predominantly in applications where the target protein was denatured (57% success in Western blot, 66% success in immunohistochemistry, although 37% of the antibodies thus generated did not work in any of these applications. In contrast, antibodies produced by DNA immunization performed well against both denatured and native targets with a high level of success: 93% success in Western blots, 100% success in immunohistochemistry, and 79% success in ELISA. Importantly, success in one assay method was not predictive of success in another. Immunization with full length protein consistently yielded the best results; however, this method is not typically available for new targets, due to the difficulty of generating full length protein. We conclude that DNA immunization strategies which are not encumbered by the limitations of efficacy (peptides or requirements for full length proteins can be quite successful, particularly when multiple constructs for each protein are used.

  8. Performance analysis of the T-DOC® air-charged catheters: An alternate technology for urodynamics.

    Science.gov (United States)

    Couri, Bruna M; Bitzos, Stephanie; Bhardwaj, Deepak; Lockhart, Emily; Yue, Andy; Goping, Ing

    2017-07-17

    Urodynamics (UDS) is widely used for the diagnosis of lower urinary tract dysfunction. Air-Charged catheters (ACC), one of the newer technologies for UDS pressure recording, has been adopted in growing numbers around the world for the past 15 years. Currently, there is a lack of published studies characterizing specific performance of the ACC. Since linearity, hysteresis, pressure drift, and frequency response are important components in characterizing accuracy for catheter-manometer systems; this study aimed to assess these four aspects in ACC. A total of 180 T-DOC® ACC were used in three different laboratory settings to assess pressure linearity and hysteresis (15 dual-sensor vesical and urethral and 30 single-sensor abdominal), pressure drift over 2 h (115 single-sensor), and frequency response (20 single-sensor). Data are presented as mean ± standard deviation. ACC showed linearity of 0.99 ± 0.01, 0.99 ± 0.01, and 1.01 ± 0.01; and hysteresis of 0.57 ± 0.3%, 0.76 ± 0.48%, and 1 ± 0.89% for the abdominal, vesical, and urethral sensors, respectively. A pressure drift of 2.2 ± 1.4% at 1 h and 4.4 ± 2.5% at 2 h were observed when compared to baseline pressures. The catheters did not show any amplification factor during the sweep from 1 to 30 Hz, and recorded signals up to 5 Hz attenuating higher frequency signals. In this study the T-DOC® ACC showed a linear performance with minimal hysteresis associated with acceptable pressure drift, and adequate frequency response to capture clinically relevant pressures. The accurate results observed in this study suggest that these catheters are technically suitable to be used as a measuring instrument for UDS. © 2017 Wiley Periodicals, Inc.

  9. A University Engagement Model for Achieving Technology Adoption and Performance Improvement Impacts in Healthcare, Manufacturing, and Government

    Science.gov (United States)

    McKinnis, David R.; Sloan, Mary Anne; Snow, L. David; Garimella, Suresh V.

    2014-01-01

    The Purdue Technical Assistance Program (TAP) offers a model of university engagement and service that is achieving technology adoption and performance improvement impacts in healthcare, manufacturing, government, and other sectors. The TAP model focuses on understanding and meeting the changing and challenging needs of those served, always…

  10. Systems Engineering Knowledge Asset (SEKA) Management for Higher Performing Engineering Teams: People, Process and Technology toward Effective Knowledge-Workers

    Science.gov (United States)

    Shelby, Kenneth R., Jr.

    2013-01-01

    Systems engineering teams' value-creation for enterprises is slower than possible due to inefficiencies in communication, learning, common knowledge collaboration and leadership conduct. This dissertation outlines the surrounding people, process and technology dimensions for higher performing engineering teams. It describes a true experiment…

  11. The Impact of Project Role on Perceptions of Risk and Performance in Information Technology Software Development: A Comparative Analysis

    Science.gov (United States)

    Okongo, James

    2014-01-01

    The failure rate of information technology (IT) development projects is a significant concern for today's organizations. Perceptions of IT project risk and project performance have been identified as important factors by scholars studying the topic, and Wallace, Keil, and Rai (2004a) developed a survey instrument to measure how dimensions of…

  12. Examining the Relationship Between Information Acquisition, Entrepreneurial Opportunity Recognition, and Innovation Performance in the High Technology Sector in Taiwan

    Science.gov (United States)

    Wang, Yu-Lin; Ellinger, Andrea D.

    2007-01-01

    The purpose of this study was to investigate the relationships between information acquisition, entrepreneurial opportunity recognition, and innovation performance in the high technology sector in Taiwan. The results suggest that both information acquisition and entrepreneurial opportunity recognition positively contribute to individual-level and…

  13. Considering the Impact of Change when Using a Human Performance Technology (HPT) Approach with an Existing Instructional Coaching Intervention

    Science.gov (United States)

    McElwain, Calee A.

    2012-01-01

    This action research study sought to examine the impact of applying the Human Performance Technology (HPT) principles to an intervention already in place in a suburban Missouri school district, and to review how those involved perceived the change of using the HPT approach. This action research study also examined what happened to the…

  14. The Impact of Virtual Collaboration and Collaboration Technologies on Knowledge Transfer and Team Performance in Distributed Organizations

    Science.gov (United States)

    Ngoma, Ngoma Sylvestre

    2013-01-01

    Virtual teams are increasingly viewed as a powerful determinant of competitive advantage in geographically distributed organizations. This study was designed to provide insights into the interdependencies between virtual collaboration, collaboration technologies, knowledge transfer, and virtual team performance in an effort to understand whether…

  15. The Impact of Project Role on Perceptions of Risk and Performance in Information Technology Software Development: A Comparative Analysis

    Science.gov (United States)

    Okongo, James

    2014-01-01

    The failure rate of information technology (IT) development projects is a significant concern for today's organizations. Perceptions of IT project risk and project performance have been identified as important factors by scholars studying the topic, and Wallace, Keil, and Rai (2004a) developed a survey instrument to measure how dimensions of…

  16. The Impact of Virtual Collaboration and Collaboration Technologies on Knowledge Transfer and Team Performance in Distributed Organizations

    Science.gov (United States)

    Ngoma, Ngoma Sylvestre

    2013-01-01

    Virtual teams are increasingly viewed as a powerful determinant of competitive advantage in geographically distributed organizations. This study was designed to provide insights into the interdependencies between virtual collaboration, collaboration technologies, knowledge transfer, and virtual team performance in an effort to understand whether…

  17. Distinct contributions of the nisin biosynthesis enzymes NisB and NisC and transporter NisT to prenisin production by Lactococcus lactis

    NARCIS (Netherlands)

    van Saparoea, H. Bart van den Berg; Bakkes, Patrick J.; Moll, Gert N.; Driessen, Arnold J. M.

    2008-01-01

    Several Lactococcus lactis strains produce the lantibiotic nisin. The dedicated enzymes NisB and NisC and the transporter NisT modify and secrete the ribosomally synthesized nisin precursor peptide. NisB can function in the absence of the cyclase NisC, yielding the dehydrated prenisin that lacks the

  18. Improving the Performance and Antifouling Properties of Thin-Film Composite Membranes for Water Separation Technologies

    Science.gov (United States)

    Tiraferri, Alberto

    Membrane-based water separation processes utilize semi-permeable membranes to retain dissolved solids and contaminants. Deployment of these technologies for desalination and wastewater reuse has the potential to sustainably increase the supply of potable, agricultural, and industrial water. Despite considerable development of semi-permeable membranes in the last decades, several design obstacles hampering their progress have yet to be overcome. Specifically, major membrane improvements are currently sought with respect to their performance and productivity, as well as their resistance to fouling. This dissertation research aims at the advancement of semi-permeable membranes by rational optimization of their design to: (i) understand and improve their transport properties and (ii) reduce fouling by organic molecules and delay biofouling by microorganisms. In particular, thin-film composite polyamide membranes for both reverse osmosis and forward osmosis processes are the main target of the investigation. The structural and physicochemical properties of thin-film composite membranes are both characterized and tailored through implementation of original techniques and novel functionalization protocols. The membrane structure and morphology are rationally modified to enhance the mass transport within the support layer. The influence of fabrication conditions on support layer formation and on its final structure is elucidated. The intricate interrelationship among the performance of the different layers of the composite membrane is highlighted and a new protocol is developed to characterize the transport properties of membranes deployed in forward osmosis processes. Novel approaches to impart targeted properties to the active surface of thin-film composite membranes are also proposed. The functionalization is achieved by exploiting the inherent moieties of the polyamide layer to irreversibly bind nanomaterials with desired properties. An experimental method to determine

  19. Exploring the Impact of Technological Competence Development on Speed and NPD Program Performance

    NARCIS (Netherlands)

    Acur, Nuran; Kandemir, Destan; Weerd-Nederhof, de Petra C.; Song, Michael

    2010-01-01

    With growing levels of competition across industries, technological competence is increasingly viewed as crucial for businesses to maintain their long-term competitive advantage. Although there are many theoretical arguments about how firms' competences can yield competitive advantage and performanc

  20. Optimizing the Environmental Performance of In Situ Thermal Remediation Technologies Using Life Cycle Assessment

    DEFF Research Database (Denmark)

    Lemming, Gitte; Nielsen, Steffen G.; Weber, Klaus

    2013-01-01

    to 75%. Moreover, a number of technology-specific improvements were identified, for instance by the substitution of stainless steel types in wells, heaters, and liners used in thermal conduction heating, thus reducing the nickel consumption by 45%. The combined effect of introducing all the suggested......In situ thermal remediation technologies provide efficient and reliable cleanup of contaminated soil and groundwater, but at a high cost of environmental impacts and resource depletion due to the large amounts of energy and materials consumed. This study provides a detailed investigation of four...... in situ thermal remediation technologies (steam enhanced extraction, thermal conduction heating, electrical resistance heating, and radio frequency heating) in order to (1) compare the life-cycle environmental impacts and resource consumption associated with each thermal technology, and (2) identify...