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Displaying 41076 - 41100 of 73970

NIST/SEMATECH Engineering Statistics Handbook Chapter 8: Reliability

June 1, 2003
Author(s)
Alan Smeaton
In today's technological world nearly everyone depends upon the continued functioning of a wide array of complex machinery and equipment for their everyday health, safety, mobility and economic welfare. Continual assessment of product reliability, and on

Observation of Photons Emitted During Inhibited Spontaneous Emission

June 1, 2003
Author(s)
D A. Branning, P G. Kwiat, Alan L. Migdall
We present the results of an experiment to observe inhibited spontaneous emission of a parametric downconverter by an optical cavity whose switching time is short compared with the round trip time of the light. The question is, can photons be counted

Obtaining Spectral Data for Colorimetry

June 1, 2003
Author(s)
Yoshihiro Ohno
Simulation analyses have been conducted on the colorimetric errors associated with the data interval, bandpass, and wavelength errors of a spectrometer, using spectral data of 43 object color samples including those from CIE 13.3, BCRA tiles, and the

Performance of 32-channel Time-Division SQUID Multiplexer for Cryogenic Detector Arrays

June 1, 2003
Author(s)
Joern Beyer, Piet DeKorte, Carl D. Reintsema, Sae Woo Nam, Gene C. Hilton, Leila R. Vale, Kent D. Irwin
Multiplexed readout is a practical requirement for the successful deployment of large-scale cryogenic detector arrays in applications ranging from x-ray microanalysis to sub-millimeter astronomy. We report on the development of a time-division SQUID

Performance of Service-Discovery Architectures in Response to Node Failures

June 1, 2003
Author(s)
Christopher E. Dabrowski, Kevin L. Mills, Andrew L. Rukhin
Current trends suggest future software systems will rely on service-discovery protocols to combine and recombine distributed services dynamically in reaction to changing conditions. We investigate the ability of selected designs for service-discovery

Precision Wavelength Metrology with a Fourier Transform Spectrometer

June 1, 2003
Author(s)
D. Veza, Marc L. Salit, John C. Travis, Craig J. Sansonetti
We have investigated the intrinsic accuracy of the optical frequency scale in spectra acquired by a Fourier Transform Spectrometer (FTS). The uncalibrated accuracy of the FTS optical frequency axis is about 1 part in 10 5. This uncertainty can be reduced

Report of Test on Experimental Conditions and Preliminary Results for the International Fire Model Benchmarking And Validation Exercise #3

June 1, 2003
Author(s)
Anthony P. Hamins, Alexander Maranghides, Erik L. Johnsson, Michelle K. Donnelly, Jiann C. Yang, George W. Mulholland
As part of its Fire Risk Research Program, the NRC (Nuclear regulatory Commission) and NIST (National Institute of Standards and Technology) are participating in an International Collaborative Fire Model Project (ICFMP) to assess and validate fire computer

Revised Thermodynamic Description for the Co-Mo System

June 1, 2003
Author(s)
Albert Davydov, Ursula R. Kattner
The previously assessed Co-Mo system (1999Dav) has been partially revised: thermodynamic descriptions for the liquid, , ς and bcc phases were amended in the attempt to eliminate some unrealistic phase diagram features, such as inverse liquid miscibility

SCATMECH: Polarized Light Scattering C++Class Library (Version 4.00)

June 1, 2003
Author(s)
Thomas A. Germer
A C++ object class library has been developed to distribute bidirectional reflectance distribution function (BRDF) models for light scattering from surfaces. Emphasis has been given to those models which are physically-based and which predict the

Security Policy Management for Handheld Devices

June 1, 2003
Author(s)
Wayne Jansen, Athanasios T. Karygiannis, M Iorga, Serban I. Gavrila, Vlad Korolev
The adoption of wireless technologies and handheld devices is becoming widespread in business, industry, and government organizations. The use of handheld devices introduces new risks to existing enterprise computing resources. Therefore, organizations

Simulation of Cup-Burner Flames in Microgravity

June 1, 2003
Author(s)
V Katta, F Takahashi, Gregory T. Linteris
The extinction process of cup-burner flames under normal-gravity conditions were previously studied. As the low-speed diffusion flames behave differently in microgravity compared to those on earth, it is important to understand the structureof cup-burner

Spectral Data for the Chandra X-Ray Observatory

June 1, 2003
Author(s)
Larissa Podobedova, Arlene Musgrove, Daniel E. Kelleher, Joseph Reader, Wolfgang L. Wiese, J S. Coursey, Karen J. Olsen
Tables of critically compiled wavelengths, line classifications, and transition probabilities are given for ionized spectra of neon (Ne V to Ne VIII), magnesium (Mg V to Mg X), silicon (Si VI to Si XII) and sulfur (S VIII to S XIV) in the 20 to 170 region
Displaying 41076 - 41100 of 73970
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