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Displaying 51726 - 51750 of 74171

Sensitivity Examination of the airEXODUS Aircraft Evacuation Simulation Model

November 16, 1998
Author(s)
Richard W. Bukowski, Richard D. Peacock, Walter W. Jones
The Building and Fire Research Laboratory at the National Institute of Standards and Technology (NIST) has been a leader in the development, application and evaluation of models for the simulation of fires and the associated hazards and risk to people

Electrochemical Quantitation of DNA Immobilized on Gold

November 15, 1998
Author(s)
A B. Steel, T M. Herne, Michael J. Tarlov
We have developed an electrochemical method to quantify the surface density of DNA immobilized on gold. The surface density of DNA, more specifically the number of nucleotide phosphate residues, is calculated from the amount of cationic redox marker

Enhancing Competitiveness Via a Public Fault & Failure Data Repository

November 13, 1998
Author(s)
D Wallace
you are leading a project with managers from other company divisions and want to conduct software inspections on the code. Some managers do not believe inspections add value. To support your case, you access a public data base containing software fault and

Convective Accelerometer and Tilt Sensor in CMOS Technology

November 12, 1998
Author(s)
V. Milanovic, E. D. Bowen, N. H. Tea, Michael Gaitan, Mona E. Zaghloul
This paper describes a CMOS implementation of novel ID and 2D accelerometers that operate based on heat convection, requiring no solid proof mass. The devices consist of micromachined microheaters and thermocouple sensors separated by a gap and placed in

Effects of Feature Orientation in Tomographic Reconstructions

November 6, 1998
Author(s)
A R. Kalukin, Zachary H. Levine, S P. Frigo, I McNulty, M Kuhn
An imaging experiment has been performed at the Advanced Photon source for the purpose of making and three-dimensional visualization of a test sample containing an interconnect. Nine nanographs were made using 1573 eV photons and a scanning transmission x

Annual Conference on Fire Research: Book of Abstracts. November 2-5, 1998.

November 2, 1998
Author(s)
Kellie A. Beall
The NIST Annual Conference on Fire Research has long been the prime forum for presentation and discussion of the latest advances in the science of fire and the engineering of fire safety. This booklet contains the abstracts of the 74 papers and posters

Clean Agent Performance on Fires Exposed to an External Energy Source.

November 2, 1998
Author(s)
Kenneth D. Steckler, William L. Grosshandler, Daniel C. Smith-Tone, P Rivers
Work carried out over the last several years has shown that there can be a significant increase in the amount of agent required to extinguish and to prevent re-ignition of fires that are exposed to a continuous, external, energy source. This has

Comparison of the Behavior of Foams and Gels Exposed to Fire.

November 2, 1998
Author(s)
Marino DiMarzo, A M. Tafreshi
Water is the principal component of both foams and gels used as fire protection agents. The foam is expanded to several times its original liquid volume with air. Data from a previous study show that, when the foam is subjected to a radiant heat input of

Condensed Phase Phenomena in Commodity Polymers Undergoing Degradation/Gasification.

November 2, 1998
Author(s)
Valeri I. Babushok, Thomas J. Ohlemiller, Takashi Kashiwagi
A series of degradation/gasification experiments has been conducted to better understand the condensed phase processes during burning of commodity polymers such as polypropylene (PP), polyethylene (PE), and polystyrene (PS). Understanding the molten

A Problem in AC Quantized Hall Resistance Measurements and a Proposed Solution

November 1, 1998
Author(s)
Marvin E. Cage, Anne-Marie Jeffery
In all experiments reported to date the measurement values of the ac quantized Hall resistances R H varied with the applied current frequency, and differed significantly from the dc values of R H, making it difficult to use the ac quantum Hall effect as an

Amorphous Alloys Containing Cobalt for Orthopaedic Applications

November 1, 1998
Author(s)
John A. Tesk, C E. Johnson, Drago Skrtic, Ming S. Tung, Stephen M. Hsu
Amorphous metal alloys have properties and structures unlike those of theircrystalline counterparts. For example, a multiphase crystalline structure may exhibit poor corrosion resistance while the amorphous structure is corrosion resistant. The high

Aperture Proximity Effects in High Heat Flux Sensors Calibration

November 1, 1998
Author(s)
A V. Murthy, Benjamin K. Tsai, Robert D. Saunders
In transfer calibration of heat flux sensors, a correction for the irradiance distribution across the sensing area may be required when the sensing areas of reference and test sensors are different. A method to calculate this correction using well known
Displaying 51726 - 51750 of 74171
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