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Displaying 776 - 800 of 859

Gas Flowmeter Calibrations with the 34 L and 677 L PVTt Standards

June 23, 2004
Author(s)
John Wright, Aaron Johnson, Michael Moldover, Gina Kline
This document provides a description of the 34 L and 677 L pressure, volume, temperature, and time (PVTt) primary gas flow standards operated by the National Institute of Standards and Technology (NIST) Fluid Flow Group. These facilities are used to

Initial Measurement Results for 20 NIST RM 8240 Standard Bullets

January 1, 2004
Author(s)
Li Ma, Jun-Feng Song, Eric P. Whitenton, Theodore V. Vorburger, J Zhou, A Zheng
The SRM (Standard Reference Material) 2460 standard bullets are developed at the National Institute of Standards and Technology (NIST) to support the National Integrated Ballistics Information Network (NIBIN), recently established by the Bureau of Alcohol

Temperature Metrology and Its Impact on Industry

September 1, 2003
Author(s)
Hratch G. Semerjian, Ellyn S. Beary
Temperature measurement represents one of the most frequently and broadly used measurements, with a majority of products manufactured having temperature measurement devices as an esential component. The accuracy and precision of these temperature

Transverse Compressive Stress Effect in Y-Ba-Cu-O Coatings on Biaxially Textured Ni and Ni-5at.%W Substrates

June 1, 2003
Author(s)
Najib Cheggour, John (Jack) W. Ekin, Cameron C. Clickner, D. T. Verebelyi, C. L. H. Thieme, Ron Feenstra, P Goyal, D F. Paranthaman
Electromechanical properties of yttrium-barium-copper-oxide (YBCO) coatings on both pure Ni and Ni-5at.%W alloy rolling-assisted, biaxially-textured substrates (RABiTS) were investigated. The effect of transverse compressive stress on transport critical

Estimating the Work in Integer Partitioning

January 31, 2003
Author(s)
April Andreas, Isabel M. Beichl
For a given set of numbers, the integer partitioning problem is to divide the numbers into two groups, so that the sums of the numbers in each group differ by the smallest amount possible. In a balanced perfect partition, the sums differ by only zero or

Hierarchical Planning Algorithms

April 5, 2002
Author(s)
Alberto Lacaze
A novel method for communicating commands in hierarchical planning control is presented. This new method can be used to warranty that plans created will be optimal within the defined planning graphs throughout the planning hierarchy. Boundary conditions

Driving Autonomously Offroad up to 35 km/h

October 1, 2000
Author(s)
David Coombs, Karl Murphy, Alberto Lacaze, Steven Legowik
A robotic HMMWV (a.k.a. "humvee") drives autonomously offroad at speeds up to 35 km/h (10 m/s, 20 mph). Key features of the implementation that enable driving at these speeds are (1) planning the next 20 m with dynamically feasible trajectories, and (2)

The Challenge of Intelligent Systems

July 19, 2000
Author(s)
A Meystel, Elena R. Messina
This paper analyzes the meaning of intelligence within the domain of intelligent control. Because of historical reasons, there are varying and diverse definitions of what constitutes an intelligent control system. Due to the multidisciplinary nature of
Displaying 776 - 800 of 859
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