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Search Publications

NIST Authors in Bold

Displaying 36551 - 36575 of 73697

On the Ignition of Fuel Beds by Firebrands.

May 11, 2005
Author(s)
Samuel L. Manzello, Thomas G. Cleary, John R. Shields, Jiann C. Yang
An experimental apparatus has been built to investigate the ignition of fuel beds as a result of impact with burning firebrands. The apparatus allowed for the ignition and deposition of both single and multiple firebrands onto the target fuel bed. The

Characterization of Structural Quality of Bonded Silicon-On-Insulator Wafers by Spectroscopic Ellipsometry and Raman Spectroscopy

May 9, 2005
Author(s)
Nhan Van Nguyen, James E. Maslar, Junghyeun Kim, Jin-Ping Han, Jin-Won Park, Deane Chandler-Horowitz, Eric M. Vogel
The crystalline quality of bonded Silicon-On-Insulator (SOI) wafers were examined by spectroscopic ellipsometry and Raman spectroscopy. Both techniques detect slight structural defects in the SOI layer. If a pure crystalline silicon dielectric function is

NIST Reference Colorimeter

May 9, 2005
Author(s)
Maria E. Nadal, Robert R. Bousquet, Gael Obein
The Optical Technology Division at the National Institute of Standards and Technology (NIST) developed a reference instrument for measuring the surface color of non-fluorescent samples at the standard measuring geometries of 0 /45 , ~0 /d, and 8 /d with

Observation of Feshbach Resonances in an Ultracold Gas of 52 Cr

May 9, 2005
Author(s)
J Werner, A Griesmaier, S Hensler, J Stuhler, Tilman Pfau, Andrea Simoni, Eite Tiesinga
We have observed Feshbach resonances in elastic collisions between ultracold 52Cr atoms. This is the first observation of collisional Feshbach resonances in an atomic species with more than one valence electron. The zero nuclear spin of 52Cr and thus the

A Curve-Based Mixed System Rating Method

May 5, 2005
Author(s)
Piotr A. Domanski, William V. Payne
The curve-based method was evaluated based on performance predictions for nine mixed systems, which were also tested by an independent testing laboratory. Capacity predictions were within 5% of the tested values for six of nine mixed systems, and four of

Hierarchical Control and Performance Evaluation of Multi-Vehicle Autonomous Systems

May 4, 2005
Author(s)
Stephen B. Balakirsky, Christopher J. Scrapper Jr, Elena R. Messina
This paper will describe how the Mobility Open Architecture Tools and Simulation (MOAST) framework can facilitate performance evaluations of RCS compliant multi-vehicle autonomous systems. This framework provides an environment that allows for simulated

A Curve-Based Mixed System Rating Method for Unitary Air Conditioners

May 2, 2005
Author(s)
William V. Payne, Piotr A. Domanski
The curve-based method was evaluated based on performance predictions for nine mixed systems, which were also tested by an independent testing laboratory. Capacity predictions were within 5% of the tested values for six of nine mixed systems, and four of

Nonparametric Analysis of Fingerprint Data

May 2, 2005
Author(s)
Jin Chu Wu, Charles L. Wilson
This paper demonstrates that, for large-scale tests, the match and non-match similarity scores have no specific underlying distribution function. The forms of these distribution functions require a nonparametric approach for the analysis of the fingerprint

A Simulation System with Neutral Data Interface for Shipbuilding Operation

May 1, 2005
Author(s)
Guodong Shao, Charles R. McLean, Swee K. Leong
Simulation technology is underutilized in the shipbuilding industry. The development of neutral data interfaces between simulation and other software applications, could make information sharing within a shipyard more effective and efficient, and hence

Application of Machine Shop Data Model in Manufacturing Simulation

May 1, 2005
Author(s)
Yan Luo, Yung-Tsun Lee
Simulation technology holds tremendous promise for the manufacturing industry. A machine shop data model has been developed at the National Institute of Standards and Technology (NIST) to represent neutral machine shop data for supporting machine shop

Boundary Fields in Reverberation Chambers

May 1, 2005
Author(s)
David A. Hill
A previous plane-wave integral representation for fields in a reverberation chamber is extended to analyze fields near the boundaries of a rectangular chamber. The field point can be located near a single wall, a right-angle bend, or a right-angle corner

Broad Spectrum Capabilities for CW Laser Power Measurements at NIST

May 1, 2005
Author(s)
Joshua A. Hadler
Recent improvements for mid-level laser power measurements (1 μW to 1 W) have increased the range of calibrations available to customers of our CW laser power measurements. In this presentation we present an overview of our capabilities as well as recent

Comparison of Measurements and Simulations for Machining of Aluminum

May 1, 2005
Author(s)
Robert W. Ivester, Eric P. Whitenton, Laurent Deshayes
This paper compares experimental measurements and model-based simulations of cutting temperature, force, and chip thickness for machining of aluminum. Cutting temperatures have been measured using high-speed infrared videography, and forces have been
Displaying 36551 - 36575 of 73697
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