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Displaying 46426 - 46450 of 73929

Elastic Moduli of Model Random Three-Dimensional Closed-Cell Cellular Solids

January 1, 2001
Author(s)
A P. Roberts, Edward Garboczi
Most cellular solids are random materials, while practically all theoretical results are for periodic models. To be able to generate theoretical results for random models, the finite element method (FEM) was used to study the elastic properties of solids

Electron Attachment Cross Sections and Negative Ion States of SF6

January 1, 2001
Author(s)
Loucas G. Christophorou, James K. Olthoff
A comprehensive and critical assessment of published data on the total, dissociative, and nondissociative electron attachment cross sections for SF 6 allowed us to recommend or suggest room temperature values for these cross sections over an energy range

Electron Interactions with c-C 4 F 8

January 1, 2001
Author(s)
Loucas G. Christophorou, James K. Olthoff
The limited electron collision cross-section and transport-coefficient data for the plasma processing gas perfluorocyclobutane (c-C 4F 8) are synthesized, assessed, and discussed. These include cross sections for total electron scattering, differential

Embedded Power Quality Solutions for Computer Numerical Control Machine Tools

January 1, 2001
Author(s)
Bradley N. Damazo, M Stephens, Johannes A. Soons, M A. Donmez
Electric Power Research Institute (EPRI) research and testing, conducted over many years, has indicated that variations in electric power quality can negatively impact end-use equipment. This research and testing has helped to form the theory that the

Embracing Uncertainty: Modeling Uncertainty in EPMA - Part II

January 1, 2001
Author(s)
Nicholas Ritchie
This, the second in a series of articles present a new framework for considering the computation of uncertainty in electron excited X-ray microanalysis measurements, will discuss matrix correction. The framework presented in the first article will be

Escherynes: Belt-Shaped Carbon Allotropes

January 1, 2001
Author(s)
Ernesto Estrada, Yamil Simon
The discoveries of fullerenes, carbon nanotubes and graphene have increased dramatically the research interests on all-carbon materials. Carbon-based materials have found applications in nanotechnology, material sciences, electronics, optic and

Establishment of a Virtual / Physical Standard for Bullet Signature Measurements

January 1, 2001
Author(s)
Jun-Feng Song, Theodore V. Vorburger, M Ols
The National Integrated Ballistics Information Network (NIBIN) is currently under development by the Bureau of Alcohol, Tobacco and Firearms (ATF) and the Federal Bureau of Investigation (FBI). The National Institute of Standards and Technology (NIST) and

Establishment of a Virtual/Physical Standard for Bullet Signature Measurements

January 1, 2001
Author(s)
Jun-Feng Song, Theodore V. Vorburger, M Ols
The National Integrated Ballistics Information Network (NIBIN) is currently under development by the Bureau of Alcohol, Tobacco and Firearms (ATF) and the Federal Bureau of Investigation (FBI). The National Institute of Standards and TEchnology (NIST) and

Establishment of Measurement Traceability for NIST Standard Bullets and Casings

January 1, 2001
Author(s)
Jun-Feng Song, Theodore V. Vorburger, M Ols
The National Integrated Ballistics Information Network (NIBIN) is currently under development by the Bureau of Alcohol, Tobacco and Firearms (ATF) and the Federal Bureau of Investigation (FBI). The NIST Standard Bullets and Casings Project aims to provide

Evaluation by Highly Relevant Documents

January 1, 2001
Author(s)
Ellen M. Voorhees
Given the size of the web, the search engine industry has argued that engines should be evaluated by their ability to retrieve highlyrelevant pages rather than all possible relevant pages. To explore the role highly relevant documents play in retrieval

Evaluation of Load Cells for Legal Metrology at NIST

January 1, 2001
Author(s)
Kevin L. Chesnutwood
Load cells for use in legal metrology issues are evaluated in accordance with the National Type Evaluation Program (NTEP) and the International Organization of Legal Metrology (OIML). An overview of the role played by the National Institute of Standards
Displaying 46426 - 46450 of 73929
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