Documents published since 1/1/2009 (17). Click the icon next to the publication title to show or hide details for that publication. Or, click the icons below to show or hide details for all the publications listed.
 | Assessment of Equipment Operators' Noise Exposure in Western Underground Gold and Silver Mines (2009) This report contains the description of studies conducted at U.S. western hard-rock mines to determine the levels of noise exposure of the miners. (PDF, 217 KB, 2009)
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| Degasification System Selection for U.S. Longwall Mines Using an Expert Classification System (2009) This study describes the development of an expert classification system used as a decision tool which can be usedfor degasification system selection using site -and mine-specific conditions. (PDF, 678 KB, 2009)
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| Effect of Air Velocity on Conveyor Belt Fire Suppression Systems (2009) Four different types of fire suppression systems were evaluated to study the effect of air velocity on the effectiveness to extinguish conveyor belt fires. Details are presented on the large-scale fire test set-up, arrangement of the fire suppression systems, and conclusions regarding the influence of air velocity on fire suppression system design and performance. (PDF, 562 KB, 2009)
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| Evaluation of Smoke Detectors for Use in Underground Mines (2009) This report describes experiments to determine the responses of a prototype smoke detector and a commercially available photoelectric smoke detector to smoke particles generated from various combustion sources. It describes their results, and the use of these results as they apply to early-warning fire sensors capable of the rapid and reliable detection of fires in atmospheres that may or may not be contaminated by either airborne dust or the products produced from diesel engines. (PDF, 532 KB, 2009)
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| External L5-S1 Joint Moments When Lifting Wire Mesh Screen Used to Prevent Rock Falls in Underground Mines (2009) This study uses biomechanical modeling to estimate external moments about L5-S1 for sixteen lifting tasks, using two sizes of wire mesh screens, and presents recommendations to reduce spine loading. (PDF, 1035 KB, 2009)
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| From Scotia to Brookwood, Fatal US Underground Coal Mine Explosions Ignited in Intake Air Courses (2009-01) NIOSH researchers studied US underground coal mine explosions over a 30 year period to identify the ignition sources and ignition locations responsible for the most severe explosion events resulting in death. Recommendations are provided for electrical equipment design and installation to prevent future disasters. (PDF, 92 KB, 2009-01)
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| Gas Sorption and Transport in Coals: A Poroelastic Medium Approach (2009-01) In this paper, single-component gas sorption and transient diffusion processes are described within coal matrix exhibiting bimodal pore structure. (PDF, 803 KB, 2009-01)
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| How Does Limestone Rock Dust Prevent Coal Dust Explosions in Coal Mines? (2009) This study investigates how limestone rock dust prevents the propagation of coal dust explosions by assessing its changes in chemical composition. (PDF, 176 KB, 2009)
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| Identifying Sources of Respirable Quarz and Silica Dust in Underground Coal Mines in Southern West Virginia, Western Virginia, and Eastern Kentucky (2009-04) This paper discusses the geochemical analyses which were applied in an effort to identify the specific source rock of respirable quartz dust in coal mines. (PDF, 829 KB, 2009-04)
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| Laboratory Investigation of Enclosed Cab Filtration System Performance Factors (2009-01) NIOSH experimental investigation results indicate that the intake filter efficiency and recirculation filter were the two most influential factors on cab protection performance. (PDF, 775 KB, 2009-01)
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| Noise Controls For Roof Bolting Machines (2009-01) This paper describes the procedure used by NIOSH researchers to evaluate noise generated by a roof bolting machine and its components, and results are given for two engineering noise controls for the roof bolting machine: a bit isolator and a drill chuck isolator. (PDF, 381 KB, 2009-01)
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| Passive Mine Blast Attenuators Constructed of Rock Rubble for Protecting Ventilation Seals (2009) This paper discusses some concepts and preliminary test results for a "Passive Mine Blast Attenuator" (PMBA) that can provide a useful alternative to increasingly larger and stronger stand-alone mine seals. (PDF, 468 KB, 2009)
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| A Performance Evaluation of Two Overhead Power Line Proximity Warning Devices (2009) This NIOSH publication presents the results of NIOSH testing of two Proximity Warning Devices (PWDs) which are intended to warn personnel if mobile equipment moves within some preselected minimum distance of an energized overhead electrical power line. (PDF, 1436 KB, 2009)
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| Reservoir Rock Properties of Coal Measure Strata of the Lower Monongahela Group, Greene County (Southwestern Pennsylvania), from Methane Control and Production Perspectives (2009-03) This study presents reservoir and elastic properties of coal measure rocks in the Lower Monongahela Group in Greene County, southwestern Pennsylvania, of the Northern Appalachian Basin. The results presented in this study can be used as data sources for reservoir studies related to the production and control of methane. (PDF, 1922 KB, 2009-03)
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| Underground Coal Mining Disasters and Fatalities: United States, 1900-2006 (2009-01) NIOSH researchers reviewed mining fatality surveillance data from the period 1900-2006, and using MSHA reports collected additional data on the deaths and circumstances associated with the Sago, Alma, and Darby incidents. They also reviewed published materials and traced how events during these 2006 incidents led to the MINER Act. (HTM, KB, 2009-01)
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| Update on Refuge Alternatives: Research, Recommendations, and Underground Deployment (2009) This document highlights NIOSH's research and recommendations concerning refuge alternatives, survivability evaluations of refuge chambers, and presents a brief review of the current deployment of refuge chambers in underground coal mines in the U.S. (PDF, 353 KB, 2009)
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| Use of Pressure Swing Adsorption Technology to Inert Sealed Mine Areas with Nitrogen (2009) This paper describes the effort to create a reliable in-mine mobile plant for extracting nitrogen gas from the mine atmosphere. The gas produced by this novel technology can be used to create an inert environment in sealed mine areas. (PDF, 337 KB, 2009)
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