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Displaying 49626 - 49650 of 74193

Spray Flame Measurements for CFD Model Validation

July 1, 1999
Author(s)
J F. Widmann, S R. Charagundla, Cary Presser
Experimental data were collected for the purpose of validating multiphase combustion models and submodels. A spray combustor was fabricated that permits well-defined boundary and input conditions, and measurements were carried out that characterize the

Stray Light Elimination in Making Projection Display Measurements

July 1, 1999
Author(s)
Paul A. Boynton, Edward F. Kelley
Electronic front-projection display specifications are often based on measurements made in ideal darkroom conditions. However, not everyone has access to such a facility. In many environments, ambient light from other sources in the room illuminates the

Studies of Ion Bombardment in High Density Plasmas Containing CF 4

July 1, 1999
Author(s)
James K. Olthoff, Yicheng Wang
We report ion energy distributions, relative ion intensities, and absolute total ion current densities at the grounded electrode of an inductively coupled Gaseous Electronics Conference radio-frequency reference cell for discharges generated in pure C 4

The Future of Gate Dielectrics Considered

July 1, 1999
Author(s)
Curt A. Richter
Symposium R, Ultrathin SiO 2 and High-K Materials for ULSI Gate Dielectrics, provided a large (20 invited speakers and more than 100 total presentations) and exciting overviews of many possible solutions for technologically critical issues associated with

The Seventh Text REtrieval Conference (TREC-7)

July 1, 1999
Author(s)
Ellen M. Voorhees, Donna K. Harman
This report constitutes the proceedings of the seventh Text REtrieval Conference (TREC-7) held in Gaithersburg, Maryland, November 9-11, 1998. The conference was co-sponsored by the National Institute of Standards and Technology (NIST) and the Defense

Thin-Film Calibration Wafer Materials for RTP Temperature Measurement

July 1, 1999
Author(s)
Kenneth G. Kreider, John G. Gillen
We are developing an instrumented calibration wafer for radiometric temperature measurements that uses thin-film thermocouples to minimize the thermal disturbance of the wafer by the sensors. The thin-film thermocouples are sputter deposited on a thermally

VARMAS After Twelve

July 1, 1999
Author(s)
George D. Quinn
The Versailles Advanced Materials and Standards VAMAS project is a forum for prestandardization research. It has helped spread awareness of new testing and characterization methods around the world. Technical Working Area (TWA) 3-Ceramics has been active

Voltage Modulation Scanned Probe Oxidation

July 1, 1999
Author(s)
F Perez-murano, K Birkelund, K Morimoto, John A. Dagata
Scanned probe microscope (SPM) oxidation with voltage modulation leads to a significant enhancement of the oxide growth rate, improvement of the aspect ratio of oxide features, and control of the structural and electrical properties of the SPM oxide

X-Ray-Absorption Edge Separation Using Diffraction Anomalous Fine-Structure

July 1, 1999
Author(s)
Bruce D. Ravel, Charles E. Bouldin, H Renevier, J -. Hodeau, J -. Berar
When two or more absorption edges in a material are sufficiently close in energy, Extended X-ray-Absorption Fine-Structure (EXAFS) spectroscopy may be of limited utility as the usable data range above the lower energy edge is truncated by the presence of

A Unique Institution: The History of NBS, 1950-1969

June 30, 1999
Author(s)
E Passaglia, K A. Beal
A follow-on to Measures for Progress by Rexmond C. Cochrane, this work covers the history of the National Bureau of Standards (NBS) from 1950-1969. While the book focuses on technical work, the management and administration of the Bureau are also discussed

Standard Reference Material 2100: Ceramic Fracture Toughness

June 30, 1999
Author(s)
George D. Quinn, R J. Gettings, K Xu
A new Standard Reference Material (SRM) has been prepared for ceramic fracture toughness. It is the first reference material in the world for the property fracture toughness for any class material (metal, ceramic, polymer). The SRM may be used with any

Development of a Hazard-Based Method for Evaluating the Fire Safety of Passenger Trains

June 29, 1999
Author(s)
Richard W. Bukowski, Richard D. Peacock, Paul A. Reneke, Jason D. Averill, S. H. Markos
The fire safety of U.S. passenger rail trains currently is addressed through small-scale flammability and smoke emission tests and performance criteria promulgated by the Federal Railroad Administration (FRA). The FRA approach relies heavily on test

Evaluating Multi-Sensor Fire Detectors in the Fire Emulator/Detector Evaluator

June 29, 1999
Author(s)
Thomas G. Cleary, Michael D. Anderson, Jason D. Averill, William L. Grosshandler
NIST has developed the Fire Emulator/Detector Evaluator (FE/DE) for the purpose of testing detectors in a controlled environment. The FE/DE is a flow tunnel where fire or nuisance source characteristics can be controlled so that a detector placed in the FE
Displaying 49626 - 49650 of 74193