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NIST Authors in Bold

Displaying 51451 - 51475 of 73697

Tensile Testing Low Density Multilayers: Aluminum/Titanium

October 1, 1998
Author(s)
Daniel Josell, D van Heerden, D Shechtman, David T. Read
Yield stresses, ultimate tensile strengths, and specific strengths of aluminum/Titanium multilayer thin films are determined from the results of uniaxial tensile tests. The plasticity in the stress-strain curves. The nature of the fracture surfaces, and

The FERET Verification Testing Protocol for Face Recognition Algorithms

October 1, 1998
Author(s)
S A. Rizvi, P. Jonathon Phillips, H Moon
Two critical performance characterizations of biometric algorithms, including face recogntion, are identification and verification. In face recognition, FERET is the de facto standard evaluation methodology. Identification performance of face recognition

The NIST Chemistry WebBook: A Tool for Chemical Data Access on the Internet

October 1, 1998
Author(s)
Peter J. Linstrom, William G. Mallard
The NIST WebBook is an Internet site that provides access to physical property data from the NIST Standard Reference Data Program. It was designed as a general framework for distributing physical property data. The site currently offers a wide variety of

The NIST DMIS Interpreter: Version 2

October 1, 1998
Author(s)
Thomas Kramer, Frederick M. Proctor, William G. Rippey, Harry A. Scott
The National Institute of Standards and Technology (NIST) DMIS interpreter is a software system that reads control code programs in the DMIS language (described below in Section 1.2), produces calls to a set of canonical commands for coordinate measuring

The NIST DMIS Interpreter: Version 2

October 1, 1998
Author(s)
Thomas R. Kramer, Frederick M. Proctor, William G. Rippey, Harry A. Scott
This report describes an interpreter which reads a file of numerical control code for a coordinate measuring machine (CMM), produces calls to a set of canonical CMM functions, and writes inspection report files. The interpreter is a software system written

Time-Base Nonlinearity Determination Using Iterated Sine-Fit Analysis

October 1, 1998
Author(s)
Gerard N. Stenbakken, J. P. Deyst
A new method is presented to determine the time-base errors of sampling instruments. The method does not require a model for the time-base error and, thus, provides accurate estimates where model-based methods fail. Measurements of sinewaves at multiple

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
Displaying 51451 - 51475 of 73697
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