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Search Publications

NIST Authors in Bold

Displaying 44826 - 44850 of 73697

An Improved Voronoi-Diagram-Based Neural Net for Pattern Classification

September 12, 2001
Author(s)
Camillo A. Gentile, M Sznaier
In this brief paper, we propose a novel two-layer neural network to answer a point query in Rn which is partitioned into polyhedral regions. Such a task solves among others nearest neighbor clustering. As in previous approaches to the problem, our design

Harmonization of Standards

September 12, 2001
Author(s)
Belinda L. Collins, S Stanford
This paper is a summary of a workshop session during the Workshop on Biomedical Materials and Devices, held June 13 -14, 2001. The workshop is part of a series of workshops and topical meetings organized by NIST in the area of biomedical technology. The

Needs and Research Directions in Human-Robot Interactive Systems

September 12, 2001
Author(s)
V Lumelsky, Jean C. Scholtz
The advantages of using robotic systems will only be realized if non-experts in robotics are able to use the systems. This paper outlines some directions needed for research in human-robot interaction (HRI).

A Mercury-Ion Optical Clock

September 9, 2001
Author(s)
James C. Bergquist, U Tanaka, Robert E. Drullinger, Wayne M. Itano, David J. Wineland, Scott A. Diddams, Leo W. Hollberg, E A. Curtis, Christopher W. Oates, T Udem

Equation of State and Thermodynamic Properties of Pure Toluene and Dilute Aqueous Toluene Solutions in the Critical and Supercritical Regions

September 9, 2001
Author(s)
Sergei B. Kiselev, James F. Ely, Ilmutdin Abdulagatov, Emil Bazaev, Joe W. Magee
In this paper, we report new PVTx measurements for water + toluene binary mixtures at 11 near-critical and supercritical isotherms T = 623, 627, 629, 631, 633, 643, 645, 647, 649, 651, and 673 K and pressures up to 39 MPa at a fixed concentration of x = 0

Sapphire Statistical Strength Characterization

September 7, 2001
Author(s)
D R. McClure, R W. Cayse, S Goodrich, D McCullum, D C. Harris, K Lagerlof, C E. Patty, D H. Platus, Robert S. Polvani, David R. Black
Approximately 1400 4-point flexure specimens were tested at 300 K to 873 K to establish an engineering database for the strength of sapphire. Coupons represented material used for two missile windows and one missile dome. For one window, coupons were

Comparison of Concrete Rheometers: International Tests at LCPC (Nantes, France) in October 2000

September 5, 2001
Author(s)
Chiara F. Ferraris, L Brower, D Beaupre, F Chapdelaine, P Domone, E Koehler, L Shen, M Sonebi, Leslie Struble, D Tepke, O Wallevik, J Wallevik
The American Concrete Institute (ACI) sub-committee 236A, Workability of Fresh Concrete, upon its creation in fall 1999, immediately faced the task of determining appropriate methods to measure concrete workability. Using a material science-based approach

Proceedings of The Biometric Consortium 2001 Conference

September 5, 2001
Author(s)
Fernando L. Podio, J S. Dunn
The Biometric Consortium 2001 Conference examines rapid advances in biometric technologies and applications and explores new developments in the areas of metrology, assurance, and standards. The Conference proceedings include presentations in a series of

Security Self-Assessment Guide for Information Technology Systems

September 5, 2001
Author(s)
Marianne M. Swanson, Elizabeth B. Lennon
This ITL Bulletin summarizes Special Publication (SP) 800-26, Security Self-Assessment Guide for Information Technology Systems. Adequate security of information and the systems that process it is a fundamental management responsibility. Agency officials

Evaluating Knowledge and Representation for Intelligent Control

September 4, 2001
Author(s)
Elena R. Messina, John Evans, James S. Albus
Knowledge and the way it is represented have a tremendous impact on the capabilities and performance of intelligent systems. There is evidence from studies of human cognitive functions that experts use multiple representations in problem solving tasks and

Experiences in Deploying Test Arenas for Mobile Autonomous Robots

September 4, 2001
Author(s)
Adam S. Jacoff, Elena R. Messina, John Evans
The National Institute of Standards and Technology has created a set of reference test arenas for evaluating the performance of mobile autonomous robots performing urban search and rescue tasks. The arenas are intended to help accelerate the robotic

Appendix: Auditory Diagnostic and Prosthetic Devices

September 3, 2001
Author(s)
Victor Nedzelnitsky
This paper is an appendix for the proceedings of the Workshop on Biomedical Materials and Devices, held June 13 -14, 2001. The workshop is part of a series of workshops and topical meetings organized by NIST in the area of biomedical technology. The

Overview of the TREC-9 Question Answering Track

September 3, 2001
Author(s)
Ellen M. Voorhees
The TREC question answering track is an effort to bring the benefits of large-scale evaluation to bear on the question answering problem. The track has run twice so far, where the goal both times was to retrieve small snippets of text that contain the

An Uncertainty Analysis of the High-Speed Pulse Parameter Measurements at NIST

September 1, 2001
Author(s)
Nicholas Paulter, Donald R. Larson
A detailed uncertainty analysis for NIST's pulse parameter measurement service is presented that represents the new pulse parameter measurement and extraction processes. Uncertainties for pulse amplitude, transition duration, overshoot, and under(pre)shoot
Displaying 44826 - 44850 of 73697
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