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NIST Authors in Bold

Displaying 41226 - 41250 of 74337

Stacked SNS Josephson Junctions for Quantum Voltage Applications

July 11, 2003
Author(s)
Paul Dresselhaus, Yonuk Chong, Samuel Benz
NIST is using SNS Josephson junctions as the basis of quantum voltage metrology. Planar junction technology limits the voltage and bandwidth of these systems due to parasitic inductances and the transit time of waveforms through the transmission line. By

A Time-Domain SQUID Multiplexer System for Read-Out of Superconducting Transition-Edge-Sensor Arrays

July 7, 2003
Author(s)
Carl D. Reintsema, James A. Beall, Steven Deiker, W.Bertrand (Randy) Doriese, Gene C. Hilton, Kent D. Irwin, Sae Woo Nam, Leila R. Vale, Joel Ullom, Yizi Xu, Joern Beyer, Martin Huber
The development of time-domain SQUID multiplexers enables the integration of superconducting transition-edge sensors (TES) into arrays of thousands of elements while maintaining a manageable number of readout channels. The applications for detector arrays

Different Dynamic and Static Magnetic Anisotropy in Thin Permalloy Films

July 6, 2003
Author(s)
Radek Lopusnik, John P. Nibarger, Thomas J. Silva, Zbigniew J. Celinski
The values of uniaxial anisotropy Hk in thin polycrystalline Permalloy films measured by static and dynamic methods differ by as much as a factor 1.5. The anisotropy obtained with a pulsed inductive microwave magnetometer in 2.5-100 nm thick Permalloy

Missing Data Methods and Toolbox Users Guide

July 2, 2003
Author(s)
Curtis H. Parks, Gerard N. Stenbakken, Alexei Nikolaev
Measurement data are collected to characterize a production run of devices that can then be analyzed to identify a reduced set of measurement points. Such measurement arrays can contain missing values. Missing data analysis methods are described, together

A Framework for Modeling and Simulation for Emergency Response

July 1, 2003
Author(s)
Sanjay Jain, Charles R. McLean
A number of modeling and simulation tools have been developed and more are being developed for emergency response applications. The available simulation tools are mostly meant for standalone use. Addressing an emergency incident requires addressing

A Hurricane Damage Prediction Model for Residential Structures

July 1, 2003
Author(s)
A Cope, K Gurley, James J. Filliben, Emil Simiu, J P. Pinelli, C Subramanian, L. Zhang, S Hamid
The focus of this paper is the development of a probabilistic model for the prediction of structural damage due to hurricane winds in the state of Florida. This is a necessary component to a model currently under development to predict annualized insurable

A Mathematical Model of Wire Feeding Mechanisms in GMAW

July 1, 2003
Author(s)
T M. Padilla, D. R. Munoz, Timothy P. Quinn, R. A. Rorrer
A Hertzian based contact model of the friction between the welding wire and the wire liner has been developed to predict the wire pulling force for gas metal arc welding (GMAW). The model predicts a 2.5:1exponential increase in wire pulling force as the

An Optimization Approach to Multiple Sequence Alignment

July 1, 2003
Author(s)
Fern Y. Hunt, Anthony J. Kearsley, H H Wan
The problem of multiple sequence alignment is recast as an optimization problem using Markov decision theory. One seeks to minimize the expected or average cost of alignment subject to data-derived constraints. In this setting the problem is equivalent to

Analysis of Effective Thermal Properties of Thermall Thick Materials

July 1, 2003
Author(s)
Frederick W. Mowrer
The standard methods used to derive effective thermal properties of thermally thick materials based on bench-scale radiant exposure tests are reviewed and analyzed. These methods are compared with numerical calculations for the same boundary conditions

Atomic Spectral Tables for the Chandra X-Ray Observatory, Part I (S VIIl - S XIV)

July 1, 2003
Author(s)
Larissa Podobedova, Arlene Musgrove, Daniel E. Kelleher, Joseph Reader, Wolfgang L. Wiese
Tables of critically compiled wavelengths, energy levels, line classifications, and transition probabilities are given for spectra of ionized sulfur (S VIII - S XIV) in the region 21 to 170 . These tables provide data of interest for the Emission Line

BACnet Wide Area Network Security Threat Assessment

July 1, 2003
Author(s)
David G. Holmberg
This technical report addresses inter-networked building automation and control systems (BAS or BCS) using the BACnet protocol [ANSI/ASHRAE, 2001]. The report deals with threats from known sources due to communication connections to the corporate LAN and

BACnet Wide Area Network Security Threat Assessment.

July 1, 2003
Author(s)
David G. Holmberg
This technical report addresses inter-networked building automation and control systems (BAS or BCS) using the BACnet protocol [ANSI/ASHRAE, 2001]. The report deals with threats from known sources due to communication connections to the corporate LAN and

Bench-Scale Flammability Measures for Electronic Equipment

July 1, 2003
Author(s)
Matthew F. Bundy, Thomas J. Ohlemiller
An experimental study of the bench-scale fire performance of 18 commercial polymeric materials was conducted by the National Institute of Standards and Technology. The performance of these materials was characterized using three standard flammability tests

Building a Filtering Tst Collection for TREC 2002

July 1, 2003
Author(s)
Ian Soboroff, S E. Robertson
Test collections for the filtering track in TREC have typically used either past sets of relevance judgments, or categorized collections such as Reuters Corpus Volume 1 or OHSUMED, because filtering systems need relevance judgments during the experiment
Displaying 41226 - 41250 of 74337
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