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Displaying 42601 - 42625 of 73829

Second Workshop on Wireless Sensing Proceedings

November 1, 2002
Author(s)
James D. Gilsinn, Kang B. Lee, Richard D. Schneeman, Hui-Min Huang
The second Workshop on Wireless Sensing was held on October 4, 2001, at the Sensors Expo & Conference at the Philadelphia Convention Center in Philadelphia, PA. The National Institute of Standards and Technology (NIST), SENSORS magazine, Sensors Conference

Security for Telecommuting and Broadband Communications

November 1, 2002
Author(s)
Shirley M. Radack
This bulletin summarizes NIST SP 800-46, Security for Telecommuting and Broadband Communications, published September 2002. The report discusses both technical and policy issues, and provides guidance on using personal firewalls, strengthening the security

Simulation of SCC Flow

November 1, 2002
Author(s)
Nicos Martys, Chiara F. Ferraris
Predicting the rheological properties of concrete is essential for its optimal use in situations such as flow between rebars. The aggregate gradation and shape, as well as the rheological properties of the mortar or cement paste will affect the flow of SCC

Software Engineering for Intelligent Control Systems

November 1, 2002
Author(s)
Tony Barbera, Elena R. Messina, Hui-Min Huang, Craig I. Schlenoff, Stephen B. Balakirsky
Understanding how humans manage information and carry out actions provides a foundation for the software engineering of intelligent control systems. The Real-time Control System (RCS) design methodology and reference architecture, founded on human

Standards for Bullets and Casings

November 1, 2002
Author(s)
Jun-Feng Song, Theodore V. Vorburger, Robert A. Clary, Eric P. Whitenton, Li Ma, Susan M. Ballou
The National Institute of Standards and Technology is developing reference standards through its Office of Law Enforcement Standards with funding provided by the National Institute of Justice. The standard reference materials are used by crime laboratories

Structure of HI1333 (YhbY), a Putative RNA-Binding Protein From Haemophilus Influenzae

November 1, 2002
Author(s)
M A. Willis, W Krajewski, V R. Chalamasetty, Prasad T. Reddy, A J. Howard, O Herzberg
The structures of a number of small [alpha]/[Beta] RNA-binding proteins with diverse biological functions are known1. Their topologies and the locations of the RNA-binding sites vary considerably, consistent with the plasticity of RNA due to base-pair

Study on Isochoric Specific Heat Capacities for Liquid Methanol-Water Mixtures

November 1, 2002
Author(s)
Hiroshi Kitajima, Hiroyuki Miyamoto, Noboru Kagawa, Joe W. Magee, Harumi Endo, Seizo Tsuruno, Koichi Watanabe
Hydrogen bonding of water (H 2O) is certain to introduce an effect of the molecular energy to the heat capacity. Due to the presence of the strong hydrogen bonding, interactions between water and methanol (CH 3OH) molecules show anomalous thermodynamic

Surface and Interface Properties of PVDF/Acrylic Copolymer Blends

November 1, 2002
Author(s)
Xiaohong Gu, Tinh Nguyen, Mark R. VanLandingham, D Nguyen
Poly(vinylidene fluoride) (PVDF) is commonly blended with amorphous polymers to improve its optical property. The surface and interface properties of PVDF blended with different amounts of poly(methyl methacrylate) and poly(ethyl acrylate) copolymer (PMMA

Systems Administration Guidance for Securing Microsoft Windows 2000 Professional System

November 1, 2002
Author(s)
Murugiah P. Souppaya, Anthony B. Harris, Mark McLarnon, Nikolaos Selimis
The document is intended to assist the users and system administrators of Windows 2000 Professional systems in configuring their hosts by providing configuration templates and security checklists. The guide provides detailed information about the security

Talking Ceramics

November 1, 2002
Author(s)
Terrell A. Vanderah
This is an invited Perspective article describing the technical needs and state-of-the-art research activities in the materials science of microwave ceramics, especially dielectric materials which serve as critical elements in resonators and filters

Temperature Dependence of the Acid Dissociation Constant of the Hydroxyl Radical

November 1, 2002
Author(s)
G A. Poskrebyshev, Pedatsur Neta, Robert E. Huie
The acid dissociation constant of the hydroxyl radical in aqueous solution was determined by pulse radiolysis from the pH dependence of the rate constant for reaction of the OH/O - radical with benzoate ions. The rate constant and the pKa( OH) values were

The Development of Microcalorimeter EDS Arrays

November 1, 2002
Author(s)
Kent D. Irwin, James A. Beall, Steven Deiker, Gene C. Hilton, L. King, Sae Woo Nam, Dale Newbury, Carl D. Reintsema, John A. Small, Leila R. Vale
High-energy-resolution cryogenic microcalorimeters are a powerful new tool for x-ray microanalysis. With demonstrated energy resolution 20 times better than with conventional semiconductor EDS, microcalorimeters are useful in applications such as nanoscale

Ultracold Ground-State Molecule Production in Sodium

November 1, 2002
Author(s)
F K. Fatemi, Kevin Jones, Paul D. Lett, Eite Tiesinga
We have observed the formation of ground state Na 2 molecules via the spontaneous decay of excited molecules created by the photoassociation of ultracold atoms. We measure the energies of ground state molecules formed in three hyperfine components of the

Knowledge Engineering for Real Time Control

October 30, 2002
Author(s)
John Evans, Elena R. Messina, James S. Albus, Craig I. Schlenoff
The key to real-time intelligent control lies in the knowledge models that the system contains. Three main classes of knowledge are identified: parametric, geometric/iconic, and symbolic. Each of these classes provides unique perspectives and advantages

Towards a Formal Representation of Driving Behaviors

October 28, 2002
Author(s)
Craig I. Schlenoff, Michael Gruninger
To successfully perform their required tasks, intelligent information agents require accurate and meaningful communication and integration among other agents and information resources. However, the applications and infrastructure of information technology

Thermal Component Models for Electro-Thermal Analysis of Multichip Power Modules

October 24, 2002
Author(s)
J J. Rodriguez, John V. Reichl, Zharadeen R. Parrilla, Allen R. Hefner Jr., David W. Berning, M Velez-Reyes, Jih-Sheng Lai
Thermal component models are developed for multi-chip IGBT power electronic modules (PEM) and associated high-power converter heatsinks. The models are implemented in SABER and are combined with the electro-thermal IGBT and diode models to simulate the
Displaying 42601 - 42625 of 73829
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