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ABSTRACT

The prudent teaching of the forensic fire engineering analysis of complex building fires must include the subject of computer fire modeling, particularly the use of the Fire Dynamics Simulator (FDS), developed by the National Institute of Standards and Technology (NIST).  However, the problems associated with FDS require that large buildings be divided into rooms or zones, with each assigned to an individual computational mesh.  These mutli-mesh models often produce relatively long execution times of days or weeks and typically require parallel processing computing clusters, which require technically challenging set up and maintenance.  These performance gains can only be accomplished using high performance parallel processing computer clusters designed specifically to use operating systems and hardware that exploit the parallel functions of the FDS code.  This paper presents best practices from the latest research in constructing small, medium, and large-scale high performance parallel processing computing clusters for use in academic environments to support NIST’s FDS fire model.

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Hypothesis vs. Theory

http://www.diffen.com/difference/Hypothesis_vs_Theory September 15, 2017

A hypothesis is either a suggested explanation for an observable phenomenon, or a reasoned prediction of a possible causal correlation among multiple phenomena. In science, a theory is a tested, well-substantiated, unifying explanation for a set of verified, proven factors. A theory is always backed by evidence; a hypothesis is only a suggested possible outcome, and is testable and falsifiable.

Purpose: To present an uncertain possibility that can be explored further through experiments and observations. To explain why a large set of observations are consistently made.

From Out of the Abyss...

This week’s article from the past is titled Incendiary Fires Can Be Spotted and was written by Benjamin Horton, CPCU, who was President of the National Adjuster Traing School in Louisville, Kentucky..  It is taken from the Decembe 1968 Vol. XVI No.5 issue.

Incendiary Fires Can Be Spotted 

In the new issue of NFPA Journal®, President Jim Shannon said the Association will focus on the leading causes of home fires, including cooking. "We also need to continue to push hard for home fire sprinklers. That's still a large priority for NFPA, and we plan to work very aggressively in 2014 on our residential sprinkler initiative," he said.

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NFPA 921, Guide for Fire and Explosion Investigations plays a fundamental role in fire and explosion investigations. A new edition of NFPA 921 is scheduled to be published in 2014. For years, this document has played a critical role in the training, education and job performance of fire and explosion investigators. It also serves as one of the primary references used by the National Fire Academy to support its fire/arson-related training and education programs. It is imperative that investigators understand the scope, purpose and application of this document, especially since it will be used to judge the quality and thoroughness of their investigations.

NFPA 921, Guide for Fire and Explosion Investigations plays a fundamental role in fire and explosion investigations. A new edition of NFPA 921 is scheduled to be published in 2014. For years, this document has played a critical role in the training, education and job performance of fire and explosion investigators. It also serves as one of the primary references used by the National Fire Academy to support its fire/arson-related training and education programs. It is imperative that investigators understand the scope, purpose and application of this document, especially since it will be used to judge the quality and thoroughness of their investigations.

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SAN DIEGO - A Team 10 and Scripps News investigation found arson fires are not investigated properly in many American cities -- including San Diego -- due to a chaotic patchwork of reporting systems and standards.

Many deliberately set building fires are not reported to the federal government.

Nationally, just 5 percent of all residential building fires are intentionally set, according to the National Fire Incident Reporting System, which is part of the Department of Homeland Security.  Data collected by Scripps News suggests the national arson rate to be significantly higher.

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Bathroom Ceiling Exhaust Fans

Risk Control
Bathroom Ceiling Exhaust Fans
Introduction
This document provides information concerning ceiling mounted bathroom exhaust fans, used in residential, as well as industrial/commercial facilities, and provides guidance for facilities where these types of fans are present. It will help to familiarize the reader with the potential fire hazards associated with this type of fan.

Risk Control

Bathroom Ceiling Exhaust Fans

Introduction
This document provides information concerning ceiling mounted bathroom exhaust fans, used in residential, as well as industrial/commercial facilities, and provides guidance for facilities where these types of fans are present. It will help to familiarize the reader with the potential fire hazards associated with this type of fan.

Governor Brown Directs State Agencies to Revise Flammability Standards

SACRAMENTO – in an effort to protect public safety by reducing the use of toxic flame retardants, Governor Edmund G. Brown Jr. today advised state agencies to revise flammability standards for upholstered furniture sold in the state.

Governor Brown has asked the Bureau of Electronic and Appliance Repair, Home Furnishings and Thermal Insulation to review the state’s four-decade-old flammability standards and recommend changes to reduce toxic flame retardants while continuing to ensure fire safety.

“Toxic flame retardants are found in everything from high chairs to couches and a growing body of evidence suggests that these chemicals harm human health and the environment,” said Governor Brown. “We must find better ways to meet fire safety standards by reducing and eliminating—wherever possible—dangerous chemicals.”
Studies show that humans are at risk from exposure to toxic chemicals used as flame retardants in upholstered furniture. A 2008 study by the Environmental Working Group found that toddlers often have three times the level of flame retardant chemicals in their bodies as their parents, and California children have some of the highest levels of toxic flame retardants in their bodies.

A peer-reviewed study by scientists at Cal/EPA found that California women have much higher levels of toxic flame retardants in their breast tissue than women in other states and countries. Researchers from the University of California, Berkeley found statistically significant associations between flame retardant levels in the blood of California women and reduced fertility. The researchers believe this link may result from alterations in thyroid hormone levels after exposure to the chemicals.

Numerous studies demonstrate that firefighters have significantly elevated rates of cancer, including non-Hodgkin’s lymphoma and brain cancer. A study published in the Journal of Occupational and Environmental Medicine concluded that firefighters have a significantly elevated risk of cancer that may be attributed to toxic chemicals they inhale, including flame retardants.

The guidelines in place now—Technical Bulletin 117 for flammability standards—will be updated to reflect modern manufacturing methods that can lower the use of harmful chemicals.

The process to change these regulations will include workshops and the opportunity for public comment as well as administrative review.


Governor Jerry Brown
State Capitol Building
Sacramento, CA 95814

Press Release - Contra Costa County FPD

Contra Costa County Fire Protection District

Press Release

Subject: Walnut Creek Man Arrested for Arson
Release Date:April 10th 2012
Contact:
This e-mail address is being protected from spambots. You need JavaScript enabled to view it
925-941-3541 Office
925-383-5034 Cell
Vic Massenkoff, Fire Investigator

Late on Friday April 6th, 62 year old Walnut Creek resident Brent Robert Kastroff waskastroff
arrested by Contra Costa County Fire District Investigators and the Walnut Creek Police Department at his home in the community of Rossmoor.

In January of this year, Fire Investigators received information about a small fire that occurred on private property on Vista Del Valle in Lafayette. The property is a large parcel that contains 3 homes, but the majority of the 90 acres is grass covered land that even when maintained can still pose a wildfire threat to nearby homes and residents due to it’s size and topography. The investigation lead to the discovery of a previously unreported fire in May of 2011 in the same area; however there were no leads in either incident.

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Press Release

Contra Costa County Fire Protection District
Press Release

Subject:        Serial Arsonist Arrest
 Pittsburg, Antioch, and Bay Point areas
Release Date:  December 21, 2011

Contra Costa County Fire Protection District Fire Investigators, assisted by the Pittsburg Police Department, arrested arson suspect, Thomas Hartman, 53 years old, from Pittsburg late Thursday afternoon December 15, 2011 after a Superior Court Judge issued a warrant for his arrest.

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Investigation Nabs Suspects in Car Fire That Seriously Injured LAFD Captain

The Los Angeles Fire Department is pleased to announce the arrest of Maria Porras, 35 and Rigoberto Diaz, 37 both of Los Angeles, in conjunction with an auto-insurance fraud scheme involving an auto fire which occurred near Elysian Park in January 2011.

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