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Results 131 - 140 of 260
5/1/2004 - Conference papersThis study describes how response times of machine-mounted methane monitors were measured by placing the methane sensor heads in a specially designed box where they were exposed to an atmosphere containing a constant concentration of methane.
This paper discusses elements of a stray gas investigation and the analyses necessary to identify the source of a stray gas.
A general overview of the blasting and CO monitoring of a highway construction project is presented and discussed. The use and effectiveness of residential type CO monitors and multi-gas monitors are discussed.
A detailed description of blasting-related carbon monoxide migration from a construction site into nearby residential homes.
2/1/2003 - Conference papersReport on NIOSH studies using a 12-foot diameter sphere to identify key factors that may enhance the levels of CO associated with the detonation of several commercial trenching explosives.
10/1/2002 - Conference papersReport on the development and field testing of a solar powered, remote gob gas venthole monitoring and cellular telephone-based real-time data transmission system.
Lightning Propagation Through the Earth and its Potential for Methane Ignitions in Abandoned Areas of Underground Coal Mines10/1/2002 - Conference papersThis paper addresses the question, 'Can lightning cause potential differences capable of igniting methane-and-air mixtures at overburden depths at which underground coal mining occurs?'
The Use of Light Scattering and Ion Chamber Responses for the Detection of Fires in Diesel Contaminated Atmospheres6/1/2002 - Peer reviewed journal articlesExperiments were conducted to determine the optical scattering properties of diesel particulate matter (DPM) and various combustion aerosols from both flaming and smoldering combustion sources at discrete angles of 151 and 301 in the forward direction...
Evaluating Performance Characteristics of Machine-Mounted Methane Monitors by Measuring Response Time6/1/2002 - Conference papersThis publication examines a procedure for measuring the response time of machine-mounted methane monitors
2/1/2002 - Conference papersReport on a NIOSH study to identify factors that may contribute to nitrogen oxides (NOx) production associated with non-ideal detonation of blasting agents.