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Displaying 3751 - 3775 of 13217

Enticing arsonists with broken windows and social disorder

January 6, 2011
Author(s)
Douglas Thomas, David Butry, Jeffrey P. Prestemon
… and socioeconomic factors shown to influence crime rates. In criminology, it is well understood that indicators of … with lower crime detection and apprehension rates than in other, better maintained neighborhoods. Whether it is the … the incidence of wildland and structure arson ignitions in Michigan from 2001 to 2005 as a function of constructed …

Clean agent suppression of energized electrical equipment fires

January 3, 2011
Author(s)
Gregory T. Linteris
… determine the amount of agent required to suppress fires in energized electrical equipment; however, there has been no broad agreement on a test method to include in NFPA 2001 for Class C fires. Further, some of the test … fires. This report reviews the role of energy augmentation in the suppression of fires over condensed phase materials. A …

Three Dimensional Shape Analysis of JSC-1A Simulated Lunar Regolith Particles

October 23, 2010
Author(s)
Edward Garboczi
… screen. Samples of all four size fractions were embedded in epoxy and formed into cylindrical specimens. These … moments of inertia were computed for each particle in 3-D as well as a 3-D VRML image of each particle analyzed. … used to critique the shape of a model JSC-1A particle used in a discrete element modeling study. …

Performance of Dual Photoelectric/ Ionization Smoke Alarms in Full-Scale Fire Tests

March 25, 2010
Author(s)
Thomas G. Cleary
… over a range of flaming and smoldering fire scenarios. In one test series, dual alarms activated 539 s faster than … and 79 s faster than photoelectric alarms on average. In another test series, individual alarm sensor outputs were calibrated against a reference smoke source in terms of light obscuration over a path length (percent …

Image Frequency Analysis for Testing of Fire Service Thermal Imaging Cameras

September 30, 2009
Author(s)
Francine K. Amon
… performance standard for thermal imagers used in fire service applications. A suite of thermal imager … and test methods is being developed for possible inclusion in a proposed standard on thermal imagers for the fire … goals apply to two of the imaging performance metrics in this suite: to explore the feasibility of a new spatial …

Furnace Testing of Full-Scale Gypsum Steel Stud Non-Load Bearing Wall Assemblies: Results of Multi-Laboratory Testing in Canada, Japan, and USA

May 30, 2008
Author(s)
Samuel L. Manzello, William L. Grosshandler, Tensei Mizukami
… furnace facilities following the guidance provided in ASTM E119-00. In addition to NAFTL members conducting the tests, the … program was expanded to include four testing laboratories in Japan; the Center for Better Living served as the … Fire Technology … Wall Assemblies: Results of Multi-Laboratory Testing in Canada, Japan, and USA …

A Review of Building Evacuation Models

July 1, 2005
Author(s)
Erica D. Kuligowski, Richard D. Peacock
… analyses to assess the level of life safety provided in buildings. In some cases, engineers are using back-of-the-envelope … (hand) calculation to assess life safety, and in others, evacuation models are being used. Hand … Fire Technology …

Measurement of Thermal Properties of Gypsum Board at Elevated Temperatures

May 30, 2005
Author(s)
Samuel L. Manzello, Seul-Hyun Park, Dale P. Bentz, Tensei Mizukami
… and linear contraction for gypsum board types widely used in the USA and Japan were measured both at room temperature … Type F from Japan. Results indicate that the difference in thermal properties of all gypsum board samples tested in the present study is not significant, particularly at …

Characteristics of Fire Scenarios in Which Sublethal Effects of Smoke Are Important

April 1, 2004
Author(s)
Richard D. Peacock, Jason D. Averill, Paul A. Reneke, Walter W. Jones
… at which smoke inhalation and heat exposure would result in incapacitation. Fires in three building types were modeled: a ranch house, a hotel, … HCN and reduce O^2^. The results suggest that occupancies in which sublethal effects from open fires could affect …

Generation and Transport of Smoke Components

April 1, 2004
Author(s)
Kathryn M. Butler, George W. Mulholland
… the aerosol component of smoke can play a significant role in the lethal and sublethal effects on people. This paper … affect smoke toxicity: the amount of aerosols produced in fires and their characteristics, the changes in concentration that occur as the smoke moves away from the …

Generation and Transport of Smoke Components.

April 1, 2004
Author(s)
Kathryn M. Butler, George W. Mulholland
… the aerosol component of smoke can play a significant role in the lethal and sublethal effects on people. This paper … Fire Technology …

Carbon Monoxide Levels in Structure Fires: Effects of Wood in the Upper Layer of a Post-Flashover Compartment Fire.

November 1, 1998
Author(s)
B Y. Lattimer, U Vandsburger, R J. Roby
… was performed to determine the effects of wood pyrolyzing in a high-temperature, vitiated compartment upper layer on … temperature measurements from tests with and without wood in the compartment upper layer. Experiments were performed … door-type opening between the compartment and the hallway. In these tests, the wood in the compartment upper layer …
Displaying 3751 - 3775 of 13217
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