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Displaying 44601 - 44625 of 73960

The Philosophy of Information Retrieval Evaluation

January 1, 2002
Author(s)
Ellen M. Voorhees
Evaluation conferences such as TREC, CLEF, and NTCIR are modern examples of the Cranfield evaluation paradigm. In the Cranfield paradigm, researchers perform experiments on test collections to compare the relative effectiveness of different retrieval

The Precision Alignment of a Kolsky Bar Apparatus

January 1, 2002
Author(s)
Timothy J. Burns, Brian S. Dutterer, Michael Kennedy, Matthew A. Davies, Richard L. Rhorer
The modeling of machining processes is often limited by the availability of material data appropriate for the high strain rates and rapid heating associated with the metal cutting process. A new NIST facility - the pulse heated Kolsky bar apparatus - has

The Protein Data Bank: Unifying the Archive

January 1, 2002
Author(s)
J Westbrook, Z. Feng, Sanjay Jain, Talapady N. Bhat, N Thanki, Veerasamy Ravichandran, G L. Gilliland, W Bluhm, H Weissig, D S. Greer, P E. Bourne, H M. Berman
The Protein Data Bank (PDB; http://www.pdb.org/) is the single worldwide archive of structural data of biological macromolecules. This paper describes the progress that has been made in validating all data in the PDB archive and in releasing a uniform

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
Displaying 44601 - 44625 of 73960
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