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Displaying 59651 - 59675 of 74357

A Guide to the Selection of Anti-Virus Tools and Techniques

December 1, 1992
Author(s)
William Polk, Lawrence E. Bassham
Computer viruses continue to pose a threat to the integrity and availability of computer systems. This is especially true for users of personal computers. A variety of anti-virus tools are now available to help manage this threat. These tools use a wide

A User's Guide for CFAST Version 1.6

December 1, 1992
Author(s)
Paul A. Reneke, Walter W. Jones, Richard D. Peacock, Rebecca W. Portier
CFAST is a zone model capable of predicting the environment in a multi-compartmentstructure subjected to a fire. This guide provides a detailed description of the pre- and post-processing routines used by the model, the data input requirements, and the

Acoustic Emission of Structural Materials Exposed to Open Flames

December 1, 1992
Author(s)
William L. Grosshandler, M A. Jackson
The use of acoustic emission (AE) as an early indicator of structural materials exposed to a flame has been investigated and found to be possible. Piezoelectric transducers have been mounted directly on 0.5 m long, simply supported beams of aluminum

Acoustic Emission of Structural Materials Exposed to Open Flames

December 1, 1992
Author(s)
William L. Grosshandler, M A. Jackson
The use of acoustic emission (AE) as an early indicator of structural materials exposed to a flame has been investigated and found to be possible. Piezoelectric transducers have been mounted directly on 0.5 m long, simply supported beams of aluminum

Automated Tools for Testing Computer System Vulnerability

December 1, 1992
Author(s)
William T. Polk
Computer security "incidents" occur with alarming frequency. The incidents range from direct attacks by both hackers and insiders to automated attacks such as network worms. Weak system controls are frequently cited as the cause, but many of these

Calibrating On-Wafer Probes to the Probe Tips

December 1, 1992
Author(s)
Dylan F. Williams, Roger Marks
This paper investigates the accuracy of on-wafer scattering-parameter calibrations at the probe tips. Data show the extent to which certain probe-tip calibrations are consistent with one another and applicable to the characterization of devices or circuits

Ignition and Subsequent Flame Spread Over a Thin Cellulosic Material.

December 1, 1992
Author(s)
Kazuyoshi K. Nakabe, Howard R. Baum, Takashi Kashiwagi
Both ignition and ffame spread on solid fuels are processes that not only are of considerable scientific interest but that also have important fire safety applications. Both types of processes, ignition and flame spread, are complicated by strong coupling

Interconnection Transmission Line Parameter Characterization

December 1, 1992
Author(s)
Roger Marks, Dylan Williams
This paper introduces a new method for the characterization of transmission lines fabricated on lossy or dispersive dielectrics. The method, which is more accurate than conventional techniques, is used to examine the resistance, inductance, capacitance

Planar Resistors for Probe Station Calibration

December 1, 1992
Author(s)
Dave K. Walker, Dylan F. Williams, Nicole Morgan
This paper investigates the effects of variations in sheet resistance, geometry, distance from the probe tip, and fabrication processes on the impedance of planar nickel-chromium resistors. Resistor reactance is a strong function of film resistance, but

Reduction of Hydrogen Cyanide Concentrations and Acute Inhalation Toxicity From Flexible Polyurethane Foam Combustion Products by the Addition of Copper Compounds. Part 4. Effects of Combustion Conditions and Scaling on the Generation of Hydrogen cyanide

December 1, 1992
Author(s)
Barbara C. Levin, E Braun, M Paabo, Richard H. Harris Jr., Magdalena Navarro
Two full-scale protocols (A & B) were tested to determine the efficacy of cuprous oxide (Cu2O) in reducing the concentrations of hydrogen cyanide (HCN) from flexible polyurethane foams (FPU) when thermally decomposed under "realistic" room conditions. In
Displaying 59651 - 59675 of 74357
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