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NIST Authors in Bold

Displaying 45476 - 45500 of 73697

Validation and Modification of the 4SIGHT Computer Program (NIST IR 6747)

May 1, 2001
Author(s)
Kenneth A. Snyder
The original version of the 4sight computer program was written to facilitate the performance assessment of buried concrete structures based deterministic calculations of service life, using data supplied by the user. In an effort to assure reliability in

Visualization of Grit Interaction During the Ductile to Brittle Polishing Transition

May 1, 2001
Author(s)
Richard B. Mindek, Christopher J. Evans, Eric P. Whitenton
Dual strobe and single strobe once per revolution imaging techniques are employed on the Rapidly Renewable Lap (RRL) to study the ductile to brittle transition observed during the polishing of silicon and calcium flouride. Analysis of video images during

Workshop on Texture in Electronic Applications

May 1, 2001
Author(s)
Mark D. Vaudin, Debra L. Kaiser
A two day workshop on Texture in Electronic Applications was held on October 10-11,2000 at NIST, Gaithersburg. The workshop presented an excellent forum for discussion of a broad spectrum of texture-related issues of interest to academic,government and

Cost Analysis of Fire Suppression Systems

April 24, 2001
Author(s)
J M. Bennett, M L. Kolleck
All three services and their respective platforms have special problems in regard to fires. Each carries munitions, which can be initiated by a fire. In addition, each can also contain large quantities of fuel distributed in fuel tanks throughout, with

On the Suitability of CF3Br as a Benchmark replacement Fire Suppressants

April 24, 2001
Author(s)
B A. Williams, J W. Fleming
We investigate the rationale for the use of CF,Br as a reference standard for alternative fire suppresants. Stating efficiencies of alternative agents on a relative basis to that of CF,Br is well founded from an engineering standpoint, but less so from a

Premixed Flame Inhibition by Manganese and Tin Compounds

April 24, 2001
Author(s)
Gregory T. Linteris, Vadim D. Knyazev, Valeri I. Babushok
Flame inhibition data exist for a few metallic compounds (Fe(CO)5, Pb(C2H5)4, CrO2Cl2) which show them to be one or two orders of magnitude more effective than halon 1301 at reducing the burning velocity of premixed methane-air flames. Little burning

TOWARDS SUBGRID SCALE MODELING OF SUPPRESSANT FLOW IN ENGINE NACELLE CLUTTER

April 24, 2001
Author(s)
P E. DesJardin, J M. Nelson, L A. Gritzo, David R. Keyser, T A. Ghee, J R. Tucker, P J. Disimile
The release and transport of a suppressant agent into an enclosed compartment is sensitive to local geometrical features or “clutter” that is difficult to resolve numerically without using an excessively large CFD grid. Such examples include wire bundles

Transient Application Recirculating Pool Fire, Agent Effectiveness Screen: Final Report

April 24, 2001
Author(s)
William L. Grosshandler, Anthony P. Hamins, Jiann C. Yang, Kevin B. McGrattan, Cary Presser
A three-year research effort has been conducted as part of the Next Generation Program (NGP) to develop a laboratory screening device suitable for predicting the behavior of halon alternatives in full-scale fire suppression experiments. Most of the work

Analysis of Samples Removed from a Damaged Pipeline

April 15, 2001
Author(s)
Paul E. Stutzman
A set of specimens adhered to a pipe, provided by National Safety Transportation Board (NTSB), were examined for microstructure evaluation. The section of a 40.6 cm diameter gasoline pipeline from which the specimens were obtained showed signs of

High Precision Comparison Between SNS and SIS Josephson Voltage Standards

April 15, 2001
Author(s)
Blaise Jeanneret, Alain Rufenacht, Charles J. Burroughs
Recently, a new Josephson voltage standard based on a 1 V programmable chip provided by the National Institute of Standards and Technology (NIST) was implemented at the Swiss Federal Office of Metrology (OFMET). A comparison with a conventional Josephson

Hybrid glass substrates for waveguide device manufacture

April 15, 2001
Author(s)
Samuel D. Conzone, Joseph S. Hayden, David S. Funk, Alexana Roshko, D. L. Veasey
Hybrid glass substrates composed of active (ER/Yb co-doped) and passive phosphate glass were prepared by a novel, low temperature joining process. The resulting hybrid substrates are chemically and physically robust; they can be cut, ground and polished by

Optoelectronic Device Performance on Reduced Threading Dislocation Density GaAs/Si

April 15, 2001
Author(s)
P. H. Taylor, W. A. Jesser, J. Bradshaw, M. Lara-Taysing, R. P. Leavitt, G. Simonis, W. Chang, W. W. Clark, Kristine A. Bertness
A technique for the heteroepitaxy of GaAs/Si films having reduced threading dislocation density is presented. The important attribute of this technique is the suppression of three-dimensional Volmer-Weber island formation during initial deposition. This
Displaying 45476 - 45500 of 73697
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