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Results 51 - 60 of 89
4/1/2007 - Conference papersThis paper identifies and characterizes nanometer and ultrafine aerosols emitted by diesel engines in the underground environment and evaluates the effects of selected contemporary control technologies.
1/1/2007 - Conference papersThis paper reviews the potential hazards from toxic fumes produced by detonating explosives in surface mining and construction operations. Techniques to protect workers and the public from the hazards of explosive-related toxic fumes are discussed.
6/1/2006 - Conference papersThis paper focuses on the flow patterns within the gob under three different ventilation systems: one-entry and two-entry bleederless systems, as well as a three-entry bleeder system.
6/1/2006 - Book chaptersThis chapter provides guidelines for determining the gas content of coalbeds, estimating the gas-in-place, and predicting gas flow and emissions before and during coal mining operations.
The Effects of Water Spray Placement for Controlling Respirable Dust and Face Methane Concentrations4/1/2006 - Peer reviewed journal articlesA series of laboratory evaluations examined the impact of water spray pressure, curtain setback distance, and external and underboom spray use for controlling respirable dust levels and sulfur hexafluoride tracer gas concentrations around a continuous m...
This paper serves as an overview to remind and/or instruct readers about gas-sampling methodologies and gas analyses to assist in determining the status of underground atmospheres.
2/1/2004 - Conference papersThis paper discusses elements of a stray gas investigation and the analyses necessary to identify the source of a stray gas.
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.
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...
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.