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Displaying 44576 - 44600 of 73929

The State of the Art and Practice in Digital Preservation

January 1, 2002
Author(s)
K H. Lee, Oliver T. Slattery, R Lu, Xiao Tang, V R. McCrary
The goal of digital preservation is to ensure long-term access to digitally stored information. In this paper, we try to present a comprehensive survey of techniques used in digital preservation. We also introduce representative digital preservation

The TREC 2001 Video Track: Information Retrieval on Digital Video Information

January 1, 2002
Author(s)
Alan Smeaton, Paul D. Over, C Costello, Arjen de Vries, D Doermann, A Hauptmann, M Rorvig, John R. Smith, L Wu
The development of techniques to support content-based access to archives of digital video information has recently started to receive much attention from the research community. During 2001, the annual TREC activity, which has been benchmarking the

Thermal Degradation and Flammability Properties of Polypropylene-Carbon Nanotube Composites

January 1, 2002
Author(s)
Takashi Kashiwagi, E Grulke, J Hilding, Richard H. Harris Jr., W H. Awad, J. F. Douglas
Nanocomposites based on polypropylene and carbon nanotubes (up to 2 vol.-%) were melt blended, yielding a good dispersion of nanotubes without using any organic treatment or additional additives. Carbon nanotubes are found to significantly enhance the

Thermal Response and Inequivalence of Pulsed Ultraviolet-Laser Calorimeters

January 1, 2002
Author(s)
D X. Chen, Marla L. Dowell, Christopher L. Cromer, Nien F. Zhang
A finite element model has been developed to study the thermal response of pulsed-laser calorimeters. Comparisons between pulsed- and average-laser power heating will be shown. Comparisons between laser and electrical heating will be presented and the

Thermal Shock Resistance of Silicon Nitrides Using an Indentation-Quench Test

January 1, 2002
Author(s)
S K. Lee, J D. Moretti, Brian R. Lawn
The thermal shock resistance of silicon nitrides is investigated using an indentation-quench procedure. Four grades of commercially available silicon nitrides with different microstructures are investigated. The extension of Vickers radial cracks is

Thermodynamics of Metal Agent Fire Extinguishment

January 1, 2002
Author(s)
J D. Mather, R E. Tapscott
The thermodynamics of oxides, carbonates, halides and related metal compounds involved in extinguishment by dry chemicals and metal agents has been analyzed. It is shown that lattice energies play an important role in determining the extinguishment
Displaying 44576 - 44600 of 73929
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