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Displaying 1251 - 1275 of 3833

Building Information for Emergency Responders

June 8, 2007
Author(s)
Stephen J. Treado, Alan B. Vinh, David G. Holmberg, Michael A. Galler
This paper describes a methodology for controlling access to building information to approved external entities such as police, fire and public safety officials. Building automation systems frequently monitor critical building information, including the

Cone Calorimeter Analysis of UL-94 V-Rated Plastics

June 1, 2007
Author(s)
A B. Morgan, Matthew F. Bundy
Cone calorimeter analysis was conducted on 18 thermoplastics with different UL-94 vertical burn test (V) ratings. Ratings varied from V-0 to no rating (NR), and the types of thermoplastics included were polycarbonate (PC), acrylonitrile-butadiene-styrene

Workshop Objectives (NIST SP 1051)

May 3, 2007
Author(s)
Rodney A. Bryant
There is a need for real-time identification of hazards to enable selection of appropriate respiratory protection for firefighters. The challenge is to transfer the protocols and technology used in industrial environments where the respiratory threats are

Optimization of Finned-Tube Condensers Using an Intelligent System

May 1, 2007
Author(s)
Piotr A. Domanski, David A. Yashar
The refrigerant circuitry influences a heat exchanger s attainable capacity. Typically, a design engineer specifies a circuitry and validates it using a simulation model or laboratory test. The circuitry optimization process can be improved by using

A Stokes Permeability Solver for Three-Dimensional Porous Media

April 4, 2007
Author(s)
Dale P. Bentz, Nicos Martys
A set of C and Fortran computer programs have been developed for computing the permeability of three-dimensional porous media under incompressible Stokes flow conditions. In this NISTIR, the background for developing these codes is reviewed and the

Uniaxial Crushing of Cellular Sandwich Plates Under Air Blast

April 3, 2007
Author(s)
Joseph A. Main, George A. Gazonas
Sandwich plates with cellular metal cores are being widely considered for blast mitigation applications, due largely to the energy absorption capacity of the cellular core material. Computational simulations have shown that sandwich plates exhibit reduced

A Low Cost Digital Vibration Meter

April 1, 2007
Author(s)
William V. Payne, Jon Geist
This report describes the development of a low cost vibration amplitude sensor. The processes used to develop this sensor involve the use of Micro-Electronic and Mechanical Systems (MEMS) manufacturing techniques. The major mechanical element of the

Vibration of Tensioned Beams with Intermediate Damper. II: Damper Near Support

April 1, 2007
Author(s)
Joseph A. Main, Nicholas P. Jones
Exact analytical solutions are used to investigate the complex eigenfrequencies of tensioned beams with a viscous damper attached transversely near a support, for which the complex eigenfrequencies remain fairly close to their undamped values. This problem

ASHRAE Standard 62.1: Problems, Perceptions and Panaceas?

March 1, 2007
Author(s)
Andrew K. Persily, Dennis Stanke, Gordon Holness, Richard Hermans
ASHRAE Standard 62 was first published in 1973, with the title Standards for Natural and Mechanical Ventilation [REF]. The most recent version (designated as 62.1 and titled Ventilation for Acceptable Indoor Air Quality) was published in 2004, with some

Building Retrofits for Increased Protection Against Airborne Chemical and Biological Releases

March 1, 2007
Author(s)
Andrew K. Persily, Robert E. Chapman, Steven J. Emmerich, William S. Dols, Heather Davis, Priya D. Lavappa, Amy S. Rushing
Due to concerns about potential airborne chemical and biological (chembio) releases in or near buildings, building owners and managers and other decision makers are considering retrofitting buildings to provide some degree of protection against such events

Verification and Validation--How to Determine the Accuracy of Fire Models.

March 1, 2007
Author(s)
Mark H. Salley, Jason Dreisbach, Kendra Hill, Bijan Najafi, Francisco Joglar, Anthony Hamins, Kevin B. McGrattan, Richard Peacock, Robert Kassawara
Both domestically and worldwide, there is a movement to introduce risk-informed and performance-based analyses into fire protection engineering practice. One key tool needed to support risk-informed, performance-based (RI/PB) fire protection is fire models
Displaying 1251 - 1275 of 3833