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NIST Authors in Bold

Displaying 12526 - 12550 of 13226

Facility for Spectral Irradiance and Radiance Responsivity Calibrations Using Uniform Sources (SIRCUS)

July 7, 2006
Author(s)
Steven W. Brown, George P. Eppeldauer, Keith R. Lykke
… responsivity at the National Institute of Standards and Technology (NIST) using a lamp-monochromator system to tune … the excitation source. Silicon detectors can be calibrated in the visible spectral region with combined standard … instrument s spectral irradiance or radiance responsivity. In this work, a new laser-based facility for Spectral …

Performance Standards for Urban Search and Rescue Robots

June 26, 2006
Author(s)
Elena R. Messina, Adam S. Jacoff
… In this paper, we describe work in performance standards for urban search and rescue (USAR) … coordinated by the National Institute of Standards and Technology and will result in consensus standards developed …

Relativity and Timing in X-ray Pulsar Navigation

June 5, 2006
Author(s)
Neil Ashby, David A. Howe
… XNAV is a technology demonstration that will use photons from X-ray … determination. This paper summarizes relativistic effects in the context of XNAV. It also characterizes the primary task in the time domain of realizing an on-board master clock that … Relativity and Timing in X-ray Pulsar Navigation …

Water Heat Pipe Blackbody as a Reference Spectral Radiance Source Between 50 C and 250 C

April 17, 2006
Author(s)
Mart Noorma, Sergey Mekhontsev, V B. Khromchenko, Maritoni A. Litorja, Claus Cagran, Jinan Zeng, Leonard M. Hanssen
… maintained at the National Institute of Standards and Technology (NIST), has relied on water bath and oil bath blackbodies in this temperature range. Recently, a water heat pipe … has been used at NIST as a spectral radiance source in a spectral emissivity measurement facility. Now a new, …

Entropy Theory of Polymer Glass-Formation Revisited. II. Influence of Mass, Pressure, and Size of Side Groups and Similarities to Equilibrium Polymerization

February 8, 2006
Author(s)
J Dudowicz, Karl Freed, Jack F. Douglas
… Recent measurements reveal striking trends in the variation of fragility (the strength of the … The elucidation of the physical origin of these trends in the fragility of glass-forming liquids remains a vital … dynamics of cooled liquids.This generalization, discussed in a companion paper, describes both equilibrium and dynamic …

A Low Differential-Pressure Primary Standard for the Range 1 Pa to 13 kPa

December 1, 2005
Author(s)
A P. Miiller, Charles R. Tilford, Jay H. Hendricks
… The National Institute of Standards and Technology (NIST) has completed the development of a low … at three other national metrology institutes (NMIs) in a recent international key comparison. Initial performance of the standard was limited in large part by pressure instabilities. This problem has …

Cell Phone Forensics Tools: An Overview and Analysis

October 19, 2005
Author(s)
Richard Ayers, Wayne Jansen, Nicolas Cilleros, Ronan Daniellou
… the combined capabilities of both a cell phone and a PDA. In addition to network services and basic PIM applications, … synchronize the results at some later time. As digital technology evolves, the capabilities of these devices … When cell phones or other cellular devices are involved in a crime or other incident, forensic examiners require …

Baseline Structural Performance and Aircraft Impact Damage Analysis of the World Trade Center Towers. Federal Building and Fire Safety Investigation of the World Trade Center Disaster (NIST NCSTAR 1-2) ***DRAFT for Public Comments***

September 1, 2005
Author(s)
Fahim Sadek
… damage analysis of the National Institute of Standards and Technology (NIST) Investigation of the World Trade Center … WTC towers under gravity and wind loads was established in order to assess the towers' ability to withstand those …

Mechanical and Metallurgical Analysis of Structural Steel. Federal Building and Fire Safety Investigation of the World Trade Center Disaster (NIST NCSTAR 1-3) ***DRAFT for Public Comments***

September 1, 2005
Author(s)
Frank W. Gayle, Richard J. Fields, William E. Luecke, Stephen W. Banovic, Timothy J. Foecke, Christopher N. McCowan, Joseph D. McColskey, Thomas A. Siewert
… (WTC), part of the National institute of Standards and Technology Investigation of the WTC disaster of September 11, … modes and temperature excursions experienced by the steel. In addition, documents from the construction era covering … and supplement models of mechanical properties used in the models of building performance. The analysis focused …

U.S. Population Data for the Multi-Copy Y-STR Locus DYS464

June 25, 2005
Author(s)
John M. Butler, R Schoske
… Population studies are important in forensic science and human identity testing to help … work. The Journal of Forensic Sciences has a section in each issue entitled For the Record where population studies such as this one can be reported in a simple fashion. Typically these reports contain only a …

Simulated Performance of Natural and Hybrid Ventilation Systems in an Office Building

February 1, 2005
Author(s)
Steven J. Emmerich, J Crum
… of pure natural ventilation systems may be limited in the United States by issues such as climate suitability, … systems offer the possibility of attaining energy savins in a greater number of buildings through the combination of … in Europe has advanced natural and hybrid ventilation technology, much work is needed to identify and realize its …

A Survey of Key Comparisons

January 1, 2005
Author(s)
Adriana Hornikova, William F. Guthrie
… the signing of the Mutual Recognition Arrangement (MRA) in 1999, approximately 120 Key Comparisons in a wide range of metrological areas have been completed and … maintained by the National Institute of Standards and Technology (NIST) in the U.S. As with many new standardized …

Stability of Photodiodes Under Irradiation With 157-nm Pulsed Excimer Laser

January 1, 2005
Author(s)
Ping-Shine Shaw, R Gupta, Keith R. Lykke
… (SURF III) at the National Institute of Standards and Technology (NIST). The intense, pulsed laser radiation … from laser irradiation. We also observed the slow recovery in detector responsivity of some of the photodiodes tested … during laser irradiation is responsible for the change in detector responsivity. …

Troubleshooting Key Comparisons

December 1, 2004
Author(s)
Adriana Hornikova, William F. Guthrie
… the signing of the Mutual Recognition Arrangement (MRA) in 1999, approximately sixty Key Comparisons in a wide range of metrological areas have been completed and … maintained by the National Institute of Standards and Technology (NIST) in the U.S. As with many new standardized …

Aircraft Cargo Fire Suppression Using Low Pressure Dual Fluid Water Mist and Hypoxic Air

May 4, 2004
Author(s)
J Brooks
… substitute for gaseous fire suppression agents worldwide. In commercial aircraft applications the FAA/CAA have adopted … is a novel concept. A new effective fire suppression technology that will not add weight or add new systems to … Interactions between sub systems has only been interfaced in the overall aircraft requirements of weight, volume and …

Evaluation and Selection in Product Design for Mass Customization: A Knowledge Decision Support Approach

January 1, 2004
Author(s)
XuanFang Zha, Ram D. Sriram, W F. Lu
… product variety to satisfy a range of customer demands in support for mass customization. This paper presents a … evaluation and selection for mass customization process. In the paper, product family design is viewed as a selection … clustering and ranking model is proposed and discussed in detail to model imprecision inherent in decision-making …

A Four-Zone Furnace for Realization of Silver and Gold Freezing Points

September 1, 2003
Author(s)
Dean C. Ripple, K Garrity, Christopher W. Meyer
… Laboratory at the National Institute of Standards and Technology has used sodium heat-pipe furnaces for the … silver, and gold. When using a fixed-point cell mounted in a long silica-glass tube that extends to ambient … is of a commercial design. The graphite block is enclosed in an Inconel 600 can, allowing the graphite to be maintained …
Displaying 12526 - 12550 of 13226
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