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Displaying 35926 - 35950 of 74141

Simulating Fire Effects on Complex Building Structures.

December 1, 2005
Author(s)
Howard R. Baum
The purpose of this lecture is to assess the current state of our ability to simulate the consequences of a fire in a large building, and suggest some areas where improvement is needed. Attention is focused on the coupling of fire dynamics simulations and

Technique for Extrapolating Absorption Coefficient Measurements to High Temperatures

December 1, 2005
Author(s)
Kaoru Wakatsuki, Stephen P. Fuss, Anthony Hamins, Marc R. Nyden
An extrapolation technique that provides semi-quantitative estimates for the infrared absorption coefficients of gaseous fuels at temperatures beyond those for which measurements are generally practical (>700 K) is presented. The new method is based on a

Trapping and Moving Atoms on Surfaces

December 1, 2005
Author(s)
Robert Celotta, Joseph A. Stroscio
We have used a scanning tunneling microscope to laterally reposition a single cobalt atom adsorbed on the (111) face of a copper crystal. We find that the atom follows a complex path determined by the trapping potential of the STM tip, the effects of

Uncertainty in NIST Force Measurements

December 1, 2005
Author(s)
Thomas W. Bartel
This paper focuses upon the uncertainty of force calibration measurements at the National Institute of Standards and Technology (NIST). The uncertainty of the realization of force for the national deadweight force standards at NIST is discussed, as well

Viscosity

December 1, 2005
Author(s)
Robert F. Berg
This article summarizes the role of viscosity in describing the properties and flow of fluids. Its measurement, dependences on temperature and density, and deviations from Newtonian behavior are discussed. Example plots and a bibliography are included.

Visual Evidence, Damage Estimates, and Timeline Analysis (Appendices D-G) Federal Building and Fire Safety Investigation of the World Trade Center Disaster (NIST NCSTAR 1-5A)

December 1, 2005
Author(s)
William M. Pitts, Kathryn M. Butler, Valentine Junker
This report summarizes the collection and analysis of visual material used for the National Institute of Standards and Technology (NIST) World Trade Center (WTC) Investigation. The task consisted of four major subtasks: 1) identification, collection, data

Visual Evidence, Damage Estimates, and Timeline Analysis (Chapters 1-8) Federal Building and Fire Safety Investigation of the World Trade Center Disaster (NIST NCSTAR 1-5A)

December 1, 2005
Author(s)
William M. Pitts, Kathryn M. Butler, Valentine Junker
This report summarizes the collection and analysis of visual material used for the National Institute of Standards and Technology (NIST) World Trade Center (WTC) Investigation. The task consisted of four major subtasks: 1) identification, collection, data
Displaying 35926 - 35950 of 74141
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