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Displaying 44851 - 44875 of 73960

Electron Diffraction Using Transmission Electron Microscopy

November 1, 2001
Author(s)
Leonid A. Bendersky, Frank W. Gayle
Electron diffraction via the transmission electron microscope is a powerful method for characterizing the structure of materials, including perfect crystals and defect structures. The advantages of electron diffraction over other methods, e.g., x-ray or

Fire Dynamics Simulator (Version 2) -- Technical Reference Guide

November 1, 2001
Author(s)
Kevin B. McGrattan, Howard R. Baum, Ronald G. Rehm, Anthony P. Hamins, Glenn P. Forney, J E. Floyd, Simo A. Hostikka
Fire Dynamics Simulator (FDS) is a computational fluid dynamics (CFD) modelof fire-driven fluid flow. The equations described in this document are a form of the Navier-Stokes equations appropriate for low-speed, thermally-driven flow with an emphasis on

Fire Dynamics Simulator (Version 2) -- User's Guide

November 1, 2001
Author(s)
Kevin B. McGrattan, Glenn P. Forney, J E. Floyd, Simo A. Hostikka
Fire Dynamics Simulator (FDS) is a computational fluid dynamics (CFD) modelof fire-driven fluid flow. The software described in this document solves numerically a form of the Navier-Stokes equations appropriate for low-speed, thermally-driven flow with an

Fire Dynamics Simulator (Version 3): Technical Reference Guide (NISTIR 6783)

November 1, 2001
Author(s)
Kevin B. McGrattan, Howard R. Baum, Ronald G. Rehm, Anthony P. Hamins, Glenn P. Forney, J E. Floyd, Simo A. Hostikka
Fire Dynamics Simulator (FDS) is a computational fluid dynamics (CFD) model of fire-driven fluid flow. The equations described in this document are a form of the Navier-Stokes equations appropriate for low-speed, thermally-driven flow with an emphasis on

Fire Dynamics Simulator (Version 3): User's Guide (NISTIR 6784)

November 1, 2001
Author(s)
Kevin B. McGrattan, Glenn P. Forney, J E. Floyd, Simo A. Hostikka
Fire Dynamics Simulator (FDS) is a computational fluid dynamics (CFD) model of fire-driven fluid flow. The software described in this document solves numerically a form of the Navier-Stokes equations appropriate for low-speed, thermally-driven flow with an

From Bulk to Nanoscale Magnetism and Exchange Bias in CuO Nanoparticles

November 1, 2001
Author(s)
A Punnoose, H Magnone, M Seehra, John E. Bonevich
Detailed studies of the temperature (5 K to 350 K) and magnetic field variations (up to H = 50 k0e) of the magnetization of CuO nanoprticles of size range 37 nm to 6.6 nm are reported. These particles are synthesized by the sol-gel method in combination

Growth of Submicron AlGaN/GaN/AlGaN Heterostructures by Hydride Vapor Phase Epitaxy (HVPE)

November 1, 2001
Author(s)
Denis Tsvetkov, Y Melnik, Albert Davydov, Alexander J. Shapiro, O Kovalenkov, J B. Lam, J J. Song
Multi layer AlGaN/GaN epitaxial structures were grown on SiC by HVPE method. Characterization of the grown structures was performed using SEM, SIMS, mercury probe, electroluminescence and photoluminescence techniques. Thicknesses of nitride layers in the

High Pressure X-Ray Crystallography With the Diamond Cell at NIST/NBS

November 1, 2001
Author(s)
Gasper J. Piermarini
Scientists in the Crystallography Section at NIST/NBS made several outstanidng contributions greatly influencing the development and advancement of high pressure x-ray crystallography during the second-half of the 20th century. These milestone achievements

Interface Specification for a Supply Chain Simulation

November 1, 2001
Author(s)
Yung-Tsun T. Lee, Shigeki Umeda
This paper describes the scope and configuration of the simulation model that is under development for a manufacturing supply chain. An information model that serves as a neutral interface specification is also presented in the paper. The supply chain

Interfacial Shear Strengths of Dental Resin-Glass Fibers by the Microbond Test

November 1, 2001
Author(s)
Walter G. McDonough, Joseph M. Antonucci, Joy Dunkers
In this study, the feasibility of using the microbond test (MBT) to probe the durability of the bond between a dental resin with differently silanized E-glass fibers was investigated. The E-glass fibers were silanized with equivalent amounts of two types

Interference Aware Bluetooth Packet Scheduling

November 1, 2001
Author(s)
Nada T. Golmie, Nicolas Chevrollier, I El bakkouri
Bluetooth is a radio technology for Wireless Personal Area Networks operating in the 2.4 GHz ISM band. Since both Bluetooth and IEEE 802.11 devices use the same frequency band and may likely come together in a laptop or may be close together at a desktop

Ionization of Boron, Aluminum, Gallium and Indium by Electron Impact

November 1, 2001
Author(s)
Yong Sik Kim, Philip M. Stone
Measurements of electron impact of ionization of neutral Al, Ga, and In show large cross sections compared to other elements in the same rows of the periodic table. Semi-empirical and classical calculations of direct ionization cross sections are all

JCPDS-ICDD Research Associateship (Cooperative Program With NBS/NIST)

November 1, 2001
Author(s)
Winnie K. Wong-Ng, H F. McMurdie, C R. Hubbard, Alan D. Mighell
The Research Associateship Program of the Joint Committee on Powder Diffraction -International Centre for Diffraction Data (JCPDS-ICDD, now known as the ICDD) at NBS/NIST was a long-standing (over 35 years), successful, industry-government cooperation. The

Kinematic Modeling of a 6-Degree of Freedom Tri Stage Micro-Positioner

November 1, 2001
Author(s)
Nicholas G. Dagalakis, E Amatucci
The 6-Degree of Freedom Tri Stage Micro Positioner (6DFTSMP) can generate high accuracy, small displacement, and high-resolution motions. The moving platform of the device has six degrees (6-D) of freedom motions (translation and rotation about three

Large-Angle In-Plane Light Scattering From Rough Surfaces: Comment

November 1, 2001
Author(s)
Thomas A. Germer
A recent paper by Karabacak et al., which discussed the scattering from rough surfaces in directions out of the plane of incidence, exhibited an error in the derivation of a polarization factor. An asymmetry in the scattering function for directions out of
Displaying 44851 - 44875 of 73960
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