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Displaying 6251 - 6275 of 7113

Scanning electron microscope dimensional metrology using a model-based library

November 1, 2005
Author(s)
John S. Villarrubia, Andras Vladar, Michael T. Postek
The semiconductor electronics industry places significant demands upon secondary electron imaging to obtain dimensional measurements that are used for process control or failure analysis. Tolerances for measurement uncertainty and repeatability are smaller

A Review of Building Evacuation Models

July 1, 2005
Author(s)
Erica D. Kuligowski, Richard D. Peacock
Evacuation calculations are increasingly becoming a part of performance-based analyses to assess the level of life safety provided in buildings. In some cases, engineers are using back-of-the-envelope (hand) calculation to assess life safety, and in others

A Review of Building Evacuation Models

July 1, 2005
Author(s)
Erica D. Kuligowski, Richard D. Peacock
Evacuation calculations are increasingly becoming a part of performance-based analyses to assess the level of life safety provided in buildings. In some cases, engineers are using back-of-the-envelope (hand) calculation to assess life safety, and in others

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

Scanning Electron Microscope Dimensional Metrology Using a Model-Based Library

April 1, 2005
Author(s)
John S. Villarrubia, Andras Vladar, Michael T. Postek
The semiconductor electronics industry places significant demands upon secondary electron imaging to obtain dimensional measurements that are used for process control or failure analysis. Tolerances for measurement uncertainty and repeatability are smaller

PC Modeling and Simulation Guidelines: Volume 1 - Overview

August 1, 2004
Author(s)
Charles R. McLean, Frank H. Riddick
The Navy is preparing to make significant investments in personal computer (PC) simulation-based learning systems. Presenting learning material in various formats and taking advantage of multimedia technologies has been shown to greatly benefit the learner

The Industrial Fluid Properties Simulation Challenge

March 1, 2004
Author(s)
Raymond D. Mountain, F Case, Anne M. Chaka, Daniel G. Friend, David Frurip, Russell D. Johnson III, J Golab, P Kolar, J Moore, J Olson, Martin Schiller, J Storer
This poster describes the results, activities, and philosophy of the Industrial Fluids Simulation Challenge. The recently completed open competition challenged practitioners of molecular simulation to calculate accurate physical properties for pure

Security Considerations in the Information System Development Life Cycle

December 1, 2003
Author(s)
Shirley M. Radack
The need to provide protection for federal information systems has been present since computers were first used. Including security early in the acquisition process for an information system will usually result in less expensive and more effective security

Microwave Properties of Low-Temperature Co-Fired Ceramic Systems

July 1, 2003
Author(s)
Richard G. Geyer, Liang Chai, Aziz Shaikh, Vern Stygar
Co-fired, patterned multi-layer ceramic structures can provide RF designers with the means for compact, dense microwave circuit and component design spanning the frequency range from 800 MHz to 77 GHz. Critical parameters affecting the performance of these

Measured Versus Predicted Performance of Building Integrated Photovoltics

February 1, 2003
Author(s)
Mark W. Davis, Arthur H. Fanney, Brian P. Dougherty
The lack of predictive performance tools creates a barrier to the widespread use of building integrated photovoltaic panels. The National Institute of Standards and Technology (NIST) has created a building integrated photovoltaic (BIPV) test bed to capture

Experimental demonstration of robust, high-fidelity geometric two ion-qubit phase gate

January 1, 2003
Author(s)
Dietrich G. Leibfried, B. L. DeMarco, V Meyer, D Lucas, Murray D. Barrett, Joseph W. Britton, Wayne M. Itano, Branislav M. Jelenkovic, Christopher Langer, Till P. Rosenband, David J. Wineland
Universal logic gates for two quantum bits (qubits) form an essential ingredient of quantum computation. Dynamical gates have been proposed in the context of trapped ions; however, geometric phase gates (which change only the phase of the physical qubits)

Cracking in Brittle Laminates from Concentrated Loads

June 1, 2002
Author(s)
H Chai, Brian R. Lawn
A study is made of the crack resistance of multilaminates consisting of brittle layers interleaved with compliant interlayers and bonded to compliant substrates. Specific attention is paid to flexure generated radial cracks in the undersurfaces of

Measured Versus Predicted Performance of Building Integrated Photovoltaics

June 1, 2002
Author(s)
Mark W. Davis, Arthur H. Fanney, Brian P. Dougherty
The lack of predictive performance tools creates a barrier to the widespread use of building integrated photovoltaic panels. The National Institute of Standards and Technology has created a building integrated photovoltaic (BIPV) test bed to capture
Displaying 6251 - 6275 of 7113
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