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Displaying 47576 - 47600 of 73697

Structural Information Mapping with Express-X

July 1, 2000
Author(s)
D B. Sanderson, Peter O. Denno
This paper provides an overview of the Express-X language, a language that provides structural information mapping of information modeled in EXPRESS schema. The paper presents the design rationale for Express-X. The paper also serves as a tutorial in

Technology Services FY1999 Technical Activities Report

July 1, 2000
Author(s)
C P. Sturrock
This report summarizes the FY1999 technical activities of TechnologyServices, National Institute of Standards and Technology. These activitiesare in the areas of standards services, including coordination of nationaland international standards-related

Temperature Effects on Fatigue of Polymer Composites

July 1, 2000
Author(s)
Hai C. Tang, Tinh Nguyen, Tze J. Chuang, Joannie W. Chin, Hanchang F. Wu, J Lesko
Fiber-reinforced polymeric composites provide lightweight, high strength, and corrosive resistance to severe environmental exposures. These composites have been extensively used in aerospace and military application over the last three decades and are

Testing for Imperfect Integration of Legacy Software Components

July 1, 2000
Author(s)
David W. Flater
In the manufacturing domain, few new distributed systems are built ground-up; most contain wrapped legacy components. While the legacy components themselves are already well-tested, imperfect integration can introduce subtle faults that are outside the

The Role of Standards in Innovation

July 1, 2000
Author(s)
Robert Allen, Ram D. Sriram
We review and explore the role of standards in innovation, with particular emphasis on the design and manufacturing processes. We begin by defining and classifying standards and by exploring their role and infrastructure in society. This is followed by a

Toroidal Cross-Capacitor for Measuring the Dielectric Constant of Gases

July 1, 2000
Author(s)
T J. Buckley, J O. Hamelin, Michael R. Moldover
We describe toroidal cross capacitors built to accurately measure the dielectric constant of gases. We tested the capacitors by measuring the dielectric polarizability of helium and argon at 7 and 50 degrees C at pressures up to 3 MPa. For helium, the

Treasure of the Past: II. The Atomic Weight of Bromine

July 1, 2000
Author(s)
Alan Weber
A considerable amount of work has been done in order to determine the atomic weight of bromine and the oft-repeated comparison of the atomic weights of silver and bromine makes it seem that this ratio is known with considerable accuracy. The value accepted

Web-Based System for Design Artifact Modeling

July 1, 2000
Author(s)
Simon Szykman, J Racz, Christophe Snowden, Ram D. Sriram
Modern engineering industry is relying more and more on the use of knowledge in product development. The NIST-Design Repository Project, at NIST, is working to develop infra-structural technologies to support the use of design repositories in industry.

Zoltan: Data-Management Services For Parallel Applications Developer's Guide

June 30, 2000
Author(s)
K Devine, B Hendrickson, E Boman, M St. John, C Vaughan, William F. Mitchell
The Zoltan Dynamic Load-Balancing Library provides critical capability to a number of parallel applications. Zoltan includes a suite of algorithms for dynamically computing partitions of problems over sets of processors; geometric, tree-based and graph

Zoltan: Data-Management Services For Parallel Applications; User's Guide

June 30, 2000
Author(s)
K Devine, B Hendrickson, E Boman, M St. John, C Vaughan, William F. Mitchell
The Zoltan Dynamic Load-Balancing Library provides critical capability to a number of parallel applications. Zoltan includes a suite of algorithms for dynamically computing partitions of problems over sets of processors; geometric, tree-based and graph

Mitigating Emerging Hacker Threats

June 28, 2000
Author(s)
Peter M. Mell, John P. Wack
[For the latest information on vulnerabilities, see the National Vulnerability Database, nvd.nist.gov] It seems that every week, computer security organizations are issuing press releases concerning the latest hacker attack. Some sound dangerous, like the

Mosquito Noise in MPEG-compressed Video: Test Patterns and Metrics

June 24, 2000
Author(s)
Charles D. Fenimore, John M. Libert, Peter Roitman
Mosquito noise is a time dependent video compression impairment in which the high frequency spatial detail in video images having crisp edges is aliased intermittently. A new synthetic test pattern of moving spirals or circles is described which generates

Public Key Infrastructures for the Financial Services Industry

June 21, 2000
Author(s)
William E. Burr, K L. Lyons-Burke
This paper addresses how financial institutions can use a Public Key Infrastructure (PKI) and some of the problems they may face in the process. PKI is an emerging cryptographic technology that is badly needed to realize the potential of information
Displaying 47576 - 47600 of 73697
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