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NIST Authors in Bold

Displaying 6701 - 6725 of 9858

Relaxation Effects in Small Critical Nozzles

January 1, 2006
Author(s)
Aaron N. Johnson, C L. Merkle, Michael R. Moldover, John D. Wright
We computed the flow of four gases (He, N 2, CO 2, and SF 6) through a critical nozzle by augmenting traditional computational fluid dynamics (CFD) with a rate equation that accounts for τ relax, a species-dependent relaxation time that characterizes the

E-Government Security Issues and Measures

December 30, 2005
Author(s)
William C. Barker
The Handbook will be a three-volume, 2,400-page reference source providing state-of-the-art information concerning the information, computer and network security with coverage of the core topics. The audience is four-year colleges and universities with

Content-Level Conformance Testing: An Information Mapping Case Study

March 1, 2005
Author(s)
Boonserm Kulvatunyou, Nenad Ivezic, Albert T. Jones
Content-level conformance testing is a key to achieving interoper-able data exchange among applications deployed across collaborating, yet in-dependent enterprises. In this paper, we identify four types of content-level conformance tests to support

Erratum: Modeling Detector Response for Neutron Depth Profiling

August 10, 2003
Author(s)
Kevin Coakley, R. G. Downing, George P. Lamaze, H C. Hofsass, C Ronning, J Biegel
In a previous paper, we analyzed the Neutron Depth Profiling energy spectrum collected from a diamond-like carbon (DLC) sample doped with boron. Based on a numerical model for the Detector Response Function (DRF), we estimated a theoretical boron profile

Quantitation of Polymer End Groups Using MALDI TOF MS

July 1, 2002
Author(s)
A P. Weaver, Charles M. Guttman, Kathleen M. Flynn
… polystyrene contained in the samples has been inferred by computing the peak areas from the mass spectral data.By comparing the ratios obtained by computing the MALDI peak areas to the mass fractions of the …

Single-Integral-Equation Method for Three-Dimensional Scattering

July 1, 2001
Author(s)
Egon Marx
The fields scattered by a homogeneous dielectric or finitely conducting object can be obtained from two tangential vector fields, the components of the electric and magnetic fields, on the interface. We have adapted the single-integral-equation method for

Simulation of Fluid Flow and Permeability in Cohesionless Soils

April 1, 2000
Author(s)
E Masad, B Muhunthan, Nicos Martys
This paper reports on a new laboratory methodology for the determination of the structure of pores, a method for the analysis of the data to obtain the statistics of the pore structure distribution, simulation of porous media with statistics consistent

Impediments to Software Engineering Technology Transfer

December 1, 1998
Author(s)
M V. Zelkowitz, D Wallace, D W. Binkley
Although the need to transition new technology to improve the process of developing quality software products is well understood, the computer software industry has done a poor job of carrying out that need. All toooften new software technology is touted

Culture Conflicts in Software Engineering Technology Transfer

June 30, 1998
Author(s)
M V. Zelkowitz, D Wallace, D W. Binkley
Although the need to transition new technology to improve the process of developing quality software products is well understood, the computer software industry has done a poor job of carrying out that need. All toooften new software technology is touted

An Integrated Approach to Optimal Three Dimensional Layout and Routing

January 1, 1998
Author(s)
Simon Szykman, J Cagan, P Weisser
This paper describes the combination of previously-developed component placement and routing algorithms into an integrated computational approach to product layout optimization. Previous work introduced simulated annealing-based algorithms for optimal

Apparel STEP Translator

January 1, 1991
Author(s)
Howard T. Moncarz, Yung-Tsun Lee
This paper describes the implementation of a prototype computer program for translating apparel pattern data between different file storage formats. The software demonstrates the feasibility of using a single, standard format as a mechanism for exchanging

Scalable Modeling of Human Blockage at Millimeter-Wave: A Comprehensive Analysis of Knife-Edge Diffraction, the Uniform Theory of Diffraction, and Physical Optics Against 60 GHz Channel Measurements

December 22, 2022
Author(s)
Anmol Bhardwaj, Camillo Gentile, Jelena Senic
Human blockage at millimeter-wave frequencies is most commonly modeled through Knife-Edge Diffraction (KED) from the edges of a vertical strip. Although extensively validated through controlled laboratory experiments, the method does not scale to realistic

Toward specification of complex additive manufactured metal surfaces for optimum heat transfer

September 23, 2021
Author(s)
Kuldeep Mandloi, Christopher Evans, Jason Fox, Harish Cherukuri, Jimmie Miller, Angela Allen, David Deisenroth, Alkan Donmez
Metal additive manufacturing (AM) offers the possibility of incorporating cooling channels into components in high-temperature applications. Additionally, it has the prospect of optimizing cooling channel geometry unconstrained by geometric limitations of

Examination of Downsampling Strategies for Converting 1000 ppi Fingerprint Imagery to 500 ppi

January 22, 2013
Author(s)
Shahram Orandi, John M. Libert, John D. Grantham, Lepley Margaret, Bruce Bandini, Kenneth Ko, Lindsay M. Petersen, Stephen S. Wood, Stephen G. Harvey
Currently the bulk of fingerprint data in operational is captured, processed and stored at 500 ppi using the WSQ compressed digital format. With the transition to 1000 ppi, some systems will unavoidably contain an overlap between 500 ppi and 1000 ppi

Smokeview: A Visualization Tool for Understanding Fire Dynamics

December 1, 2008
Author(s)
Glenn P. Forney
The purpose of fire modeling is to gain a better insight into fire dynamics and how it impacts fire safety -- not to generate large amounts of data. Gaining this insight requires visualization tools that display what the numbers generated by the model

Reference Viscosities of H 2 , CH 4 , Ar and Xe at Low Densities

August 1, 2007
Author(s)
E May, Robert F. Berg, Michael R. Moldover
We determined the zero-density viscosity eta of hydrogen, methane and argon in the temperature range 200 K to 400 K, with standard uncertainties of 0.084 % for hydrogen and argon and 0.096 % for methane. These uncertainties are dominated by the uncertainty

Benchmark Database for Input and Validation of Spray Combustion Models

May 1, 1999
Author(s)
J F. Widmann, S R. Charagundla, Cary Presser
Control of process efficiency and the formation of species byproducts from industrial thermal oxidation systems (e.g., power generation and treatment of liquid chemical wastes), is generally based on a priori knowledge of the input stream physical and

Elementary Again

April 6, 2018
Author(s)
Mark W. Keller
… J.J. Thomson, Robert Millikan, oil drop method, metrology, quantum electrical standards, voltage, resistance, Josephson, quantum Hall effects, e, electrical metrology, Stoney’s atom …

Certification of Standard Reference Material(R) 1595a Tripalmitin

March 1, 2024
Author(s)
Michael Nelson, Jerome Mulloor, Brian Lang, Blaza Toman, Antonio Possolo, William Perry, Alicia Lyle
Standard Reference Material (SRM) 1595a Tripalmitin is a high purity chemical substance having a certified value for purity, expressed as a mass fraction. It is intended for use in preparing calibrants for measurement of total glyceride in clinical samples
Displaying 6701 - 6725 of 9858
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