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Displaying 54076 - 54100 of 74189

Uncertainty Estimation for Multiposition Form Error Metrology

September 1, 1997
Author(s)
William T. Estler, Christopher J. Evans, Lianzhen Shao
We analyze a general multiposition comparator measurement procedure that leads to partial removal of artifact error for a class of problems including roundness metrology, measurement of radial error motions of precision spindles, and figure error metrology

Using Voluntary Standards in the Federal Government

September 1, 1997
Author(s)
J E. Tyler
Using Voluntary Standards in the Federal Government is a compilation of presentations given at a NIST-sponsored conference held on September 8, 1997. The purpose of the conference was to foster better understanding among Federal agencies of the private

Ternary Zeotropic Mixture With CO2 Component for R-22 Heat Pump Application

August 30, 1997
Author(s)
K Maczeck, J Muller, K Wojtas, Piotr A. Domanski
The objective of this research project was to demonstrate a successful operation of a high efficiency heat pump employing a zeotropic mixture with a zero ozone-depletion and a small greenhouse warming potential (ODP and GWP, respectively). The project

Civil Infrastructure Systems Research: Government Perspective.

August 28, 1997
Author(s)
Richard N. Wright
The U.S. federal agencies' strategy for research, development and deployment in support of the industries of construction has been developed with these industries by the Subcommittee on Construction and Building of the National Science and Technology

Characterization of Coplanar Waveguide on Epitaxial Layers

August 14, 1997
Author(s)
Dylan F. Williams, J. M. Belquin, Alain Spisser, Alain Cappy, G. Dambrine
We examine the effect of thin AlInAs/GaInAs epitaxial layers on the propagation of electrical signals in coplanar waveguide transmission lines fabricated on semi-insulating indium phosphide substrates. We show that argon isolation implants effectively

Advanced Fire Detection

August 10, 1997
Author(s)
E Braun
Current test protocols and certification processes have been developed to accommodate specific detection sensor technologies. Test methods exist to evaluate specific classes of sensors, e.g., ionization, optical, temperature, or CO, etc. In the past, the

FireCAD Development for Hazard Analysis

August 10, 1997
Author(s)
J. A. Cappuccio, Walter W. Jones, Glenn P. Forney
ABSTRACT ONLY This paper addresses the development of FireCAD, a tool for performing Fire Hazard Analysis using the capabilities of the computer aided design tool, AUTOCAD, and the zone fire model, CFAST. FireCAD uses an AUTOCAD drawing as a basis for

Investigation of Conduction Effects on Sprinkler Activation

August 10, 1997
Author(s)
E. C. Mack, Daniel M. Madrzykowski
[ABSTRACT ONLY] As part of a collaborative research project between the National Fire Protection Research Foundation and the Building and Fire Research Laboratory at NIST, the thermal response characteristics of a variety of large orifice and extra large

Brand Lofting Above Large-Scale Fires.

August 3, 1997
Author(s)
J P. Woycheese, P J. Pagni, D Liepmann
Although lofting of burning brands in forest fires has received considerable attention, little research has quantified the transport of brands from burning structures. This mechanism of fire spread is of particular importance in post-earthquake and urban
Displaying 54076 - 54100 of 74189
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