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Displaying 57626 - 57650 of 74186

Model for the Burning of a Horizontal Slab of Wood: Status Report (NISTIR 5499)

September 1, 1994
Author(s)
Kenneth D. Steckler, Anthony P. Hamins, Takashi Kashiwagi
We are in the process of developing a burning-rate model for char-forming materials. Currently, the combustion of a horizontal slab of wood, exposed to an external radiant source, is being modeled in terms of two coupled sub-models which simulate gas and

Pipe Flow Characteristics of Alternative Agent/Nitrogen Mixtures (NISTIR 5499)

September 1, 1994
Author(s)
Thomas G. Cleary, M D. King, Jiann C. Yang, William L. Grosshandler
The evaluation of alternative agents for application in engine nacelle fire protection includes delivery efficiency of agent from a remote storge bottle through piping to the nacelle injection loacation. Present military requirements for halon systems

Pool Burning of Silicone Fluids (NISTIR 5499)

September 1, 1994
Author(s)
R Buch, Anthony Hamins, John R. Shields, P. Borthwick, R T. Baum, Marc R. Nyden, Takashi Kashiwagi
Siloxane fluids have a number of industrial applications including use as transformer fluids. The objective of the present study was to improve our understanding of the burning of siloxane fluids. The fluids studied are octamethylcyclotetra siloxane, [(CH3

Simulation: State of the Art in Japan

September 1, 1994
Author(s)
Albert W. Jones
This report summarizes the state of the art of simulation research and development in Japan. This summary is divided into three parts. In part one, we provide a translation of a paper that was published in Journal of the Operations Research Society of

Testing of Coordinate Measuring System Software

September 1, 1994
Author(s)
Cathleen Diaz, Ted Hopp
Coordinate measuring systems (CMSs) determine dimensional (length) characteristics of mechanical parts by analyzing 3-dimensional point data acquired on part surfaces. Data analysis software can contribute significantly to the total measurement error of a

The Sensitivity of Three-Point Circle Fitting

September 1, 1994
Author(s)
Ted Hopp
This paper established to first order the sensitivity of the center coordinates and radius of a circle through three points in terms of small, random perturbations of those points. This problem arises in the estimation of measurement errors, from

Santa Ana Fire Department Experiment at 1315 South Bristol, July 14, 1994. Report of Test.

August 31, 1994
Author(s)
Anthony D. Putorti Jr., William D. Walton, W H. Twilley, Scott Deal, John Albers
This report of test addresses a fire experiment conducted on July 14, 1994 in a vacant single family dwelling at 1315 South Bristol Street in Santa Ana, California. Fire phenomena measured included: temperatures within various rooms, the velocity and

Santa Ana Fire Department Experiment at 1315 South Bristol, July 14, 1994. Report of Test.

August 31, 1994
Author(s)
Anthony D. Putorti Jr., William D. Walton, W H. Twilley, Scott Deal, J. C. Albers
The Santa Ana Fire Department of Santa Ana, California conducted a series of fire experiments in residences on South Bristol Street in the city of Santa Ana in July, 1994. NIST provided technical support, consisting of measurements of fire phenomena, to

Upward Flame Spread on Composite Materials

August 28, 1994
Author(s)
Thomas J. Ohlemiller, Thomas G. Cleary
The composite materials of interest in this work contain several piles of long, high strength fibers, typically woven in some fixed pattern; the layered multi-ply structure is embedded with an organic polymer resin. Such composites offer a high strength-to

Acid Gas Production in Inhibited Propane-Air Diffusion Flames

August 21, 1994
Author(s)
Gregory T. Linteris
The proposed replacements to halon 1301, mainly fluorinated and chlorinated hydrocarbons, are expected to be required in significantly higher concentrations than CF3Br to extinguish fires. At these higher concentrations the by-products of the inhibited

Compatibility of Halon Alternatives During Storage

August 21, 1994
Author(s)
Richard G. Gann, Carlos R. Beauchamp, Thomas G. Cleary, J L. Fink, Richard H. Harris Jr., F Horkay, G B. McKenna, Thomas P. Moffat, Marc R. Nyden, Richard D. Peacock, Richard E. Ricker, Mark R. Stoudt, W. K. Waldron
A key facet of the evaluation of new fire suppressants is their behavior under pressure and at elevated temperature in a metal storage container with an elastomer seal. In this study, 13 candidate chemicals have been examines: C2F6, C3F8, C4F10, cyclo-C4F8

Flammability Properties of Honeycomb Composites and Phenol-Formaldehyde Resins

August 21, 1994
Author(s)
Marc R. Nyden, James E. Brown, S M. Lomakin
The flammability properties of honeycomb composites, which are used in the interior cabin compartments of commercial aircraft, were examined. Analyses of the gases evolved during the thermal degradation of the components indicated that the phenol

Design of an Atomic Force Microscope with Interferometric Position Control

August 19, 1994
Author(s)
J Schneir, T Mcwaid, J Alexander, B Wilfley
Advances in the manufacture of integrated circuits, x?ray optics, magnetic read-write heads, optical data storage media, and razor blades require advances in ultraprecision metrology. Each of these industries is currently investigating the use of atomic
Displaying 57626 - 57650 of 74186
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