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Displaying 976 - 1000 of 3887

Enticing arsonists with broken windows and social disorder

January 6, 2011
Author(s)
Douglas Thomas, David Butry, Jeffrey P. Prestemon
Arson rates vary widely across the U.S., and much of this variation can be traced to fuel and weather factors related to ignition success and socioeconomic factors shown to influence crime rates. In criminology, it is well understood that indicators of

Droplet/Surface Interaction: Relevance to Fire Suppression

January 5, 2011
Author(s)
Anthony P. Hamins
Due to the ban of Halon 1301 under the Montreal Protocol, new liquid fire suppressants have been proposed as possible alternatives to Halon 1301 in certain fires. It has been reported that in the case of water mist fire suppression systems, a large

Suppression Limits of Low Strain Rate Non-Premixed Flames

January 5, 2011
Author(s)
Matthew F. Bundy, Anthony P. Hamins
The suppression of low strain rate non-premixed flames was investigated experimentally in a counterflow configuration through the development of a methodology that allows establishment of laminar flames free from conductive heat losses. The method allows

Clean agent suppression of energized electrical equipment fires

January 3, 2011
Author(s)
Gregory T. Linteris
The NFPA 2001 standard on the use of clean agents for the suppression of fires arose from the phase-out of Halon 1301. Standard methods exists for specifying the amount of clean agent required for Class A and Class B fires, but the recommendation for Class

3D Imaging Systems for Manufacturing, Construction, and Mobility (NIST TN 1682)

December 15, 2010
Author(s)
Geraldine S. Cheok, Maris Juberts, Marek Franaszek
The National Defense Center of Excellence for Industrial Metrology and 3D Imaging (COE-IM3DI) is conducting research to enable the next generation of manufacturing-centric human/instrument/machine interaction. The generalized goal of the COE-IM3DI research

Modeling Smoldering Fires using the Computer Model CONTAM

December 1, 2010
Author(s)
William D. Davis
The computer model CONTAM was used to simulate the spread of smoke in a house with a working furnace during smoldering fires. Three smoldering experiments from a study on detector sensitivity and siting requirements conducted in 1975 using a two story

Developing Coverage Analysis for IFC Files

November 16, 2010
Author(s)
Robert R. Lipman
Conformance and interoperability testing of product data exchange interfaces is essential to delivering reliable software implementations and meeting user’s expectations for interoperability between BIM software. For either type of testing, product data

PERFORMANCE ASSESSMENTS INSIGHTS ON THE USE OF CEMENTS IN WASTE MANAGEMENT

November 7, 2010
Author(s)
David W. Esh, Jacob Philip, Kenneth A. Snyder
The use of cementitious materials has been proposed in a variety of waste management systems because these materials can have a variety of desirable performance characteristics: hydraulic isolation, chemical isolation, structural stability. Cementitious

A Review of Building Evacuation Models, 2nd Edition

November 1, 2010
Author(s)
Erica D. Kuligowski, Richard D. Peacock, Bryan L. Hoskins
Evacuation calculations are increasingly becoming a part of performance-based analyses to assess the level of life safety provided in buildings. In some cases, engineers are using back-of-the-envelope (hand) calculations to assess life safety, and in

Residential Heat Pump Heating Performance with Single Faults Imposed

October 29, 2010
Author(s)
William V. Payne, Piotr A. Domanski, Seok Ho Yoon
A heat pump equipped with a thermostatic expansion valve (TXV) was tested in environmental chambers during steady-state no-fault and imposed-fault operation. The studied system was an R410A split residential heat pump with an 8.8 kW nominal cooling

Technical Study of the Sofa Super Store Fire- South Carolina, June 18, 2007 Volume I ***DRAFT FOR PUBLIC COMMENT*** (for final version, see NIST SP 1118, March 2011)

October 28, 2010
Author(s)
Nelson P. Bryner, Anthony D. Putorti Jr., Stephen P. Fuss, Bryan W. Klein
A fire occurred on the evening of June 18, 2007, in the Sofa Super Store in Charleston, SC. NIST analyzed the fire ground, consulted with other experts, and performed computer simulations of fire growth alternatives. Based on these analyses, the following

BEES Online: Life Cycle Analysis for Building Products

September 30, 2010
Author(s)
Barbara C. Lippiatt, Anne L. Greig, Priya D. Lavappa
The BEES (Building for Environmental and Economic Sustainability) Online web application implements a rational, systematic technique for selecting environmentally-preferred, cost-effective building products. The technique is based on consensus standards

Methodology for Calculating Construction Industry Supply Chain Statistics

September 30, 2010
Author(s)
Douglas Thomas
Data from the Economic Census provides detailed statistics on the construction industry; however, the data is only gathered every five years. The Bureau of Labor Statistics provides statistics on the construction industry on an annual basis, but these
Displaying 976 - 1000 of 3887
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