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Displaying 38176 - 38200 of 74067

EVM Calculation for Broadband Modulated Signals

December 1, 2004
Author(s)
Michael McKinley, Kate Remley, Maciej Myslinski, J. S. Kenney
We present a normalization that facilitates calculation of error vector magnitude (EVM) from measurements. We derive the IEEE 802.11a standard's EVM from a more basic equation. We compare EVM for various modulation types for a given power level under

Fire Spread Through a Room With Polyurethane Foam Covered Walls

December 1, 2004
Author(s)
Daniel M. Madrzykowski, Nelson P. Bryner, William L. Grosshandler, D W. Stroup
As part of its technical investigation of the fire that occurred in a Rhode Island, USA nightclub in February, 2003, NIST has conducted real-scale experiments to better understand the rate at which fire spreads over foam covered walls and the environment

Full-Scale Flammability Measures for Electronic Equipment.

December 1, 2004
Author(s)
Matthew F. Bundy, Thomas J. Ohlemiller
This report describes an experimental investigation by NIST to study the fire hazard of electronic equipment having thermoplastic enclosures. This work was part of the project titled "Flammability Measures for Electronic Equipment" which was supported

Health Standards & Conformance

December 1, 2004
Author(s)
Thomas R. Rhodes, Clement Ridoret
The goal of this document is to help W3C editors write better specifications, by making a specification easier to interpret without ambiguity and clearer as to what is required in order to conform. It focuses on how to define and specify conformance. It

High-Throughput Method for Determining Modulus of Polymer Blends

December 1, 2004
Author(s)
Carl G. Simon Jr., Naomi Eidelman, Y N. Deng, N Washburn
Polymer blending is commonly used to create materials with improved mechanical properties, but the resulting material properties can have a complex dependence on composition and processing conditions (Paul, 1986). In order to accelerate polymer-blend
Displaying 38176 - 38200 of 74067
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