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Displaying 42876 - 42900 of 73697

Setup and Test Procedures dd (GNU Fileutils) 4.0.36 Forensic Tests

August 1, 2002
Author(s)
James R. Lyle
This document describes the testing of dd (GNU fileutils) 4.0.36 as a disk imaging tool on a Linux platform. The Linux version used was Linux version 2.4.2-2 (Red Hat Linux 7.1 2.96-79). The test cases that were applied are described in Disk Imaging Tool

Simulation System Modeling for Mass Customization Manufacturing

August 1, 2002
Author(s)
Guixiu Qiao, Charles R. McLean, Frank H. Riddick
Emerging rapidly as a new paradigm of the 21st century, Mass Customization Manufacturing (MCM) systems possess some special characteristics that make the modeling of such systems extremely difficult. These characteristics include concurrency

Site-Specific Valence-Band Photoemission Study of A-Fe 2 O 3

August 1, 2002
Author(s)
C Y. Kim, Michael Bedzyk, E J. Nelson, Joseph Woicik, L E. Berman
We have measured the site-specific valence-electronic structure of α-Fe 2O 3 by using a spatially modulated X-ray standing wave as the excitation source for photoemission. Contributions to the valence band density of states from oxygen and iron ions are

Spatial Resolution of Spin Waves in an Ultracold Gas

August 1, 2002
Author(s)
J M. McGuirk, H J. Lewandowski, D M. Harber, T Nikuni, J E. Williams, Eric A. Cornell
We present the first spatially resolved images of spin waves in a gas. The complete longitudinal and transverse spin field as a function oftime and space is reconstructed. Frequencies and damping rates for a standing-wave mode are extracted and compared

Standards for Optical Imaging Systems in Forensic Laboratories

August 1, 2002
Author(s)
Jun-Feng Song, Theodore V. Vorburger, Robert A. Clary, Eric P. Whitenton, Li Ma, Susan M. Ballou
NIST RM (Reverence Material) 8240/2350 standard bullet and casing project is currently ongoing to support the National Integrated Ballistics Information Network (NIBIN) in the US. The original bullet signatures were traced on six master bullets from

Status of Spectroscopic Databases - A Summary

August 1, 2002
Author(s)
Wolfgang L. Wiese
Short summaries of four databases on atomic spectroscopy data are given, as they were presented at the 7th International Colloquium on Atomic Spectra Database of NIST,and other more specialized databases are actively maintained at the Weizmann Institute

Structure Formation in Micro-Confined Polymeric Emulsions

August 1, 2002
Author(s)
Jai A. Pathak, Steven D. Hudson, Kalman D. Migler
Application of a shear field to a concentrated emulsion induces a complex spatial and temporal response. The behavior of a concentrated system is treated as an extrapolation of the well-understood behavior of isolated droplets (or of the behavior of two

Superconformal Electrodeposition of Silver in Submicrometer Features

August 1, 2002
Author(s)
Thomas P. Moffat, B C. Baker, Daniel Wheeler, John E. Bonevich, Monica D. Edelstein, D R Kelly, L Gan, Gery R. Stafford, P J. Chen, William F. Egelhoff Jr., Daniel Josell
The generality of the curvature enhanced accelerator coverage (CEAC) model of superconformal electrodeposition is demonstrated through application to superconformal filling of fine trenches during silver deposition from selenium-catalyzed silver cyanide

Systems Engineering Foundations of Software Systems Integration

August 1, 2002
Author(s)
Peter O. Denno, Allison Barnard Feeney
This paper concerns how engineering capability should be factored into problem solving agencies for application to software systems integration tasks, and how the results produced by these agencies should be communicated and integrated into a system

Test Procedures for Developing Solder Data

August 1, 2002
Author(s)
Thomas A. Siewert, C A. Handwerker
This publication documents standardized test procedures that can produce valid and reproducible mechanical property data for lead-free solders. Such data speeds the application of lead-free solders in high-volume, automated production of electronic

The Cations and Anions of Cyclobutanetetraone Poly(Phenylhydrazones)

August 1, 2002
Author(s)
H S. El Khadem, M A. Shalaby, B Coxon
Six cyclobutanetetraone poly (arylhydrazones) have been treated with acids and bases, and the structures of the resulting anions and cations studied by UV/visible absorption and NMR spectroscopy. In acid media, all the hydrazones studied formed cations

The Effect of Topic Set Size on Retrieval Experiment Error

August 1, 2002
Author(s)
Ellen M. Voorhees, C E. Buckley
Retrieval mechanisms are frequently compared by computing the respective average scores for some effectiveness metric across a common set of information needs or topics. Since retrieval system behavior is known to be highly variable across topics, good

The N 13 , N 5 + N 15 and N 9 + N 15 Bands of 10 B 2 H 6

August 1, 2002
Author(s)
Walter J. Lafferty, J.- M. Flaud, H Berger, G Pawelke
The 5 m absorption region of an isotopically pure sample of diborane 10B 2H 6 has been analyzed using high resolution (0.0025 cm -1) Fourier transform spectra. A set of precise experimental rotational-vibrational energy levels has been obtained for three

The Nature and Origin of Tribochemistry

August 1, 2002
Author(s)
Stephen M. Hsu, J Zhang, Z Yin
The origin of tribochemistry is from the rubbing of surfaces together. The precise nature of the chemical reactions and the driving force behind the reactions are not known except for a few simple chemical systems. In boundary lubrication, it is difficult

Three-Layer Model for Exchange Anisotropy

August 1, 2002
Author(s)
S M. Rezende, A Azevedo, F M. de Aguiar, J R. Fermin, William F. Egelhoff Jr., Sean R. Parkin
Recent x-ray absorption measurements have indicated that the interface between the antiferromagnetic (AF) and the ferromagnetic (FM) layers in AF/FM bilayers instead of being abrupt, consists of a thin layer with uncompensated spins. Here the effect of an

Time Domain Observation of the Lorentz-Local Field

August 1, 2002
Author(s)
Steven T. Cundiff
The Lorentz local field in a dense atomic vapor is observed using transient-four-wave-mixing, a time domain spectroscopic technique. The local field is manifest as a signal for negative delay. The strength of the negative delay signal can be related to the

Ultra-Thin Aluminum Oxide as a Thermal Oxidation Barrier on Metal Films

August 1, 2002
Author(s)
L Gan, Romel Gomez, Audie M. Castillo, P J. Chen, Cedric J. Powell, William F. Egelhoff Jr.
We have investigated the role of aluminum oxide films as barriers to thermal oxidation of Co, Ni, Fe, NiFe, Mn, Ta, Cu Al and Cr in air. The oxidation of the film is monitored by measuring the electrical resistance following a brief anneal in air. We find

Using a Localized Fluorescent Dye to Probe the Glass/Resin Interphase

August 1, 2002
Author(s)
Joseph~undefined~undefined~undefined~undefined~undefined Lenhart, J H. VanZanten, Joy Dunkers, Richard~undefined~undefined~undefined~undefined~undefined Parnas
A novel technique has been developed to study the chemistry of buried polymer substrate interfacial regions by localizing a fluorescent probe to the substrate surface. Epoxy functional multi-layers of silane coupling agents were deposited on glass and
Displaying 42876 - 42900 of 73697
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