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Displaying 1826 - 1850 of 2297

Enforcing Integrity While Maintaining Secrecy

July 27, 1999
Author(s)
D G. Marks
We consider the role of constraints in maintaining both secrecy and integrity in a multilevel secure database. In a multilevel database, certain integrity and classification constraints create a secrecy problem since data additions, deletions or

Annotation Collaboration Tool via SMIL (ACTS)

July 26, 1999
Author(s)
Wo L. Chang
The Web has emerged as a dominant mode of making information available and is increasingly seen as the medium to support collaboration across boundaries of geography and time. To realize this potential, the Web must support viewing and manipulating of

A Unique Institution: The History of NBS, 1950-1969

June 30, 1999
Author(s)
E Passaglia, K A. Beal
A follow-on to Measures for Progress by Rexmond C. Cochrane, this work covers the history of the National Bureau of Standards (NBS) from 1950-1969. While the book focuses on technical work, the management and administration of the Bureau are also discussed

The Apache/Linux Measurement Toolkit (ALMT) Using NIST-Developed Chip

June 15, 1999
Author(s)
D C. Tang, J H. Lin
This paper describes the development of the Apache-Linux Measurement Toolkit (ALMT), which is a highly accurate measurement tool for evaluating the performance of a Web server. The toolkit combines hardware and software to provide fine-grained data on the

A Queueing Model of a Spread Spectrum Multiple Access

June 1, 1999
Author(s)
Vladimir V. Marbukh, Nader Moayeri
We propose a queueing model of the reverse link from mobiles to the base station in a single cell of a cellular DS-CDMA system. Approximation of independent queues leads to a non-linear fixed point equation that describes globally or locally stable system

Re-Configurable Distributed Scripting

June 1, 1999
Author(s)
Mudumbai Ranganathan, L S. Andrey, V Schaal, J Favreau
A large class of distributed testing, control and collaborative applications are reactive or event driven in nature. Such applications can be structured as a set of handlers that react to events and that in turn can trigger other events. We have developed

Symposium on Computer-Supported Cooperative Work

June 1, 1999
Author(s)
Kevin L. Mills
IComputer-supported cooperative work (CSCW) holds great importance and promise for modern society. This paper provides an overview of seventeen papers comprising a symposium on CSCW. The overviewI also discusses some relationships among the contributions

A Framework for Throughput and Stability Analysis of a DS-CDMA Network

May 17, 1999
Author(s)
Vladimir V. Marbukh, Nader Moayeri
We propose a framework for throughput and stability analysis of a Direct Sequence Code Division Multiple Access (DS-CDMA) network. Given chip rate, processing gains, packet structure, coding scheme, and the characteristics of the wireless channel, we

Modem Design Issues in LMDS Systems

May 8, 1999
Author(s)
J E. Haakegaard
During the last 2-3 years, there has been considerable activity aimed towards deploying broadband wireless access systems. The US Local Multipoint Distribution Services (LMDS) auctions in February-March 1998 of 1.3 GHz of spectrum between 27.5 GHz and 31.3

Simulation and Performance Study of PNNI ATM Networks

March 1, 1999
Author(s)
Y M. Song, David E. Cypher, David H. Su
This paper presents the simulation and performance of PNNI ATM networks by using an ATM PNNI Routing Protocol Simulator (APRoPS). This simulator was developed based on the ATM Forum s PNNI routing protocol specification. With this simulator, one can design

S2M2 A Java Applet-Based SMIL Player

December 17, 1998
Author(s)
Wo L. Chang, J Yu
Synchronized Multimedia Integration Language (SMIL) of the World Wide Web Consortium (W3C) is a simple but powerful declarative language, which extends the current multimedia technology on the Web with temporal synchronization capabilities. It uses the

Java-Based Multimedia Collaboration and Application Sharing Environment

December 1, 1998
Author(s)
H Abdel-Wahab, Okhee Kim, P Kabore, J Favreau
Multimedia desktop conferencing systems that include audio, video and application sharing are gaining momentum and increasingly becoming a reality. This paper describes one such system called Java Collaborative Environment (JCE). The application sharing
Displaying 1826 - 1850 of 2297
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