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Displaying 52276 - 52300 of 74036

Water Additives for Increased Efficiency of Fire Protection and Suppression

May 28, 1998
Author(s)
Daniel M. Madrzykowski
The Building and Fire Research Laboratory at the National Institute of Standards and Technology, under the sponsorship of the United States Fire Administration, has examined methods for demonstrating the fire protection and suppression effectiveness of

Adapting to Bandwidth Variations in Wide-Area Data Combination

May 26, 1998
Author(s)
Mudumbai Ranganathan, A Acharya, J Saltz
Efficient data combination over wide-area networks is hard as wide-area networks have large variations in available network bandwidth. In this paper, we examine the utility of changing the location of combination operators as a technique to adapt to

Replicated Architecture for Application Sharing in Desktop Conferencing Systems

May 26, 1998
Author(s)
J B. West, P Kabore, Okhee Kim, J Favreau
Multimedia desktop conferencing systems are gaining momentum and increasingly becoming a reality. In these systems, besides using audio, video and multi-user applications like a white board, users can share a vast number of single-user applications for

High bandwidth-efficiency resonant cavity enhanced Schottky photodiodes for 800-850 nm wavelength operation

May 25, 1998
Author(s)
M. S. {Umlat}nl{umlat}, M. Gvkkavas, B. M. Onat, E. Ata, E. Vzbay, Richard Mirin, K. J. Knopp, Kristine A. Bertness, David H. Christensen
High-speed resonant cavity enhanced Schottky photodiodes operating in 800-850 nm wavelength region are demonstrated. The devices are fabricated in the AlGaAs/GaAs mate1ial system. The Schottky contact is a semitransparent Au film which also serves as the

Observation of antiparallel magnetic order in weakly coupled Co/Cu multilayers

May 23, 1998
Author(s)
Julie Borchers, Joseph Dura, John Unguris, D Tulchinsky, Michael H. Kelley, Charles Majkrzak, S. Y. Hsu, R Loloee, W Pratt, J Bass
Polarized neutron reflectivity and scanning electron microscopy with polarization analysis are combined to determine the magnetic structure of Co(6 nm)/Cu(6 nm) multilayers. These data resolve a controversy regarding the low-field state of giant

An Apparatus for Evaluating Liquid Fire Suppressants

May 12, 1998
Author(s)
Jiann C. Yang, Michelle K. Donnelly, William L. Grosshandler, N C. Prive
Cup burners have been extensively used as a fire suppression efficiency screening tool for gaseous halon alternatives. In the search for alternatives to halons in fire suppression, it is likely that several types of condensed-phase compounds will be

Completing Our Panel's Work.

May 12, 1998
Author(s)
Richard N. Wright
Our 30th Joint Meeting provides an opportunity to reflect on our work and accomplishments and establish our view for the future of our U.S./Japan Panel on Wind and Seismic Effects. The Panel has helped us, in the United States, in Japan, and in the world

Indentation of Ceramics with Spheres: A Century After Hertz

May 4, 1998
Author(s)
Brian R. Lawn
In this article we review the nature and mechanics of damage induced in ceramics by spherical indenters, from the classical studies of Hertz over a century ago to the present day. Basic descriptions of continuum elastic and elastic-plastic contact stress

The Far Infrared Spectrum of HOC1 Line Positions and Intensities

May 4, 1998
Author(s)
J.- M. Flaud, M Birk, G Wagner, J Orphal, S Klee, Walter J. Lafferty
The far infrared spectrum of HOC1 has been recorded at high resolution between 20 and 360 cm-1 by means of Fourier transform spectroscopy, and it was possible to observe pure rotation lines involving rotational levels with high Ka quantum numbers (up to Ka

A Comparison of Year 2000 Solutions

May 1, 1998
Author(s)
G E. Fisher
Not withstanding going out of business, retiring old systems, or replacing inadequate systems with commercial off-the-shelf systems, there are basically three techniques for solving the Year 2000 computer problem: 1) windowing, 2) encoding or encapsulation
Displaying 52276 - 52300 of 74036
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