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Search Publications

NIST Authors in Bold

Displaying 51951 - 51975 of 74189

Transient Agent, Recirculating Pool Fire (TARPF) Suppression Screen (NISTIR 6242)

October 1, 1998
Author(s)
William L. Grosshandler, Anthony P. Hamins, Kevin B. McGrattan, Cary Presser
The amount of a gaseous agent required to extinguish fires in full-scale engine nacelle tests varies greatly with the geometry of the fixture and the manner in which the flame is stabilized. It has been observed that if the test is designed to allow fuel

Using Bench Scale Fire Measurements in Large Scale Simulations (NISTIR 6242)

October 1, 1998
Author(s)
Kevin B. McGrattan, Anthony P. Hamins, L G. Blevins
A program is underwat at NIST to develop a numerical field model, referred to as the Industrial Fire Simulator (IFS), to simulate large scale fire phenomena. Because the model is intended to simulate fire flows within buildings whose volumes are on the

Comparison of Two Methodologies in HAZARD I Fire Egress Analysis.

September 30, 1998
Author(s)
M M. Kostreva, L C. Lancaster
Within the framework of HAZARD I, fire egress analysis is performed using the EXITT program. Yet another way to analyze fire egress employs newly developed multiple objective dynamic programming. This paper compares these two approaches by applying them to

Maximum Entropy Methods for Graph-Valued Random Objects

September 30, 1998
Author(s)
D L. Banks
Many problems entail the analysis of data that are independent and identically distributed random objects, such as graphs, sequences, partitions, and permutations. Additionally, the analysis can be further complicated by the presence of equivalence clases

Evaluating the Performance of Rapid Prototyping/Rapid Manufacturing Systems

September 28, 1998
Author(s)
Richard L. Rhorer, Kevin K. Jurrens, Bradley N. Damazo
A method of fabricating and measuring simple part shapes to evaluate the performance of Rapid Prototyping (RP) systems is proposed in this report. These test shapes would include cylinders, rectangular bricks, cones, and other basic shapes. We propose a

Mechanical Properties of Si 02 and Si 3 N 4 Coatings: A BAM/NIST Cooperative Project

September 24, 1998
Author(s)
U Beck, Douglas T. Smith, G Reiners, S J. Dapkunas
Mechanical properties, i.e., hardness and elastic modulus, of amorphous Si 02 and Si 3N^4^ PE-CVD coatings have been studied for two coating thicknesses (0.1 υm and 1.0 υm) and two substrate materials (fused silica, i.e., Herasil, and borosilicate glass, i

Preliminary Investigations Into Corrosion in Anti-Lock Braking Systems

September 24, 1998
Author(s)
Richard E. Ricker, J L. Fink, Alexander J. Shapiro, L C. Smith, Robert J. Schaefer
In response to vehicle owner complaints about the operation and performance of some antilock braking systems (ABS), the National Highway Transportation Safety Administration (NHTSA) began examining components from ABS systems at the Vehicle Research and

Interface Adhesion of E-Glass Fibers in Model Polyisocyanurate Networks

September 23, 1998
Author(s)
Walter G. McDonough, Gale A. Holmes, R C. Peterson
Recent work examining the nature of the failure process of glass/epoxy specimens in the single fiber fragmentation test showed that the matrix exhibited pronounced non-linear viscoelastic behavior during the test, and that the interfacial shear strength

Cryptography Standards and Infrastructures for the Twenty-First Century

September 17, 1998
Author(s)
Shirley M. Radack
This bulletin reports on the progress being made by NIST and by its government and industry partners to advance the development of electronic commerce systems in which users will have confidence. There are efforts underway to update existing standards for

Path Planning for Autonomous Vehicles Driving Over Rough Terrain

September 17, 1998
Author(s)
Alberto Lacaze, Yigal Moscovitz, Nicholas DeClaris, Karl Murphy
This paper presents a multiresolutional architec- ture of planners for obstacle avoidance in outdoor mobility. The planner makes use of o -line dynam- ical simulations results to eciently nd paths that avoid obstacles. The trajectories are generated by set

The Growth Kinetics of Nanocrystalline ZnO Colloidal Solutions

September 11, 1998
Author(s)
E M. Wong, John E. Bonevich, P C. Searson
Colloidal chemistry techniques were used to synthesize ZnO particles in the nanometer size regime. Although the synthesis and unique properties of these materials are well known, the kinetics of the growth process are not well understood. The particle
Displaying 51951 - 51975 of 74189
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