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Results 441 - 450 of 580
Noise surveys were conducted in eight coal preparation plants. Results indicate that only workers who routinely spend a significant portion of their shift in the plants (away from the control rooms) are susceptible to overexposure from noise.
This study examines the patterns and trends in noise exposure documented in data collected by Mine Safety and Health Administration inspectors at U.S. coal mines from 1987 through 2004.
Performance of a Light Scattering Dust Monitor at Various Air Velocities: Results of Sampling in the Active Versus the Passive ModeThe Thermo personal DataRam (pDR) is an instantaneous sampler that uses light-scattering technology to provide relative measures of airborne respirable dust. The pDR can be used in active and passive modes to measure respirable dust levels.
Some of the issues affecting pillar strength at low width-to-height ratios in hard, brittle rock are investigated. The results showed that the strength of slender pillars is more variable than that of wider pillars.
12/1/2006 - Peer reviewed journal articlesThis paper presents the results of NIOSH research to identify state-of-the-art bulkhead designs, including design criteria, leakage monitoring systems, and emergency warning systems.
Injuries Associated with Continuous Miners, Shuttle Cars, Load-haul-dump, and Personnel Transport in New South Wales Underground Coal Mines12/1/2006 - Peer reviewed journal articlesThis paper analyzes narrative text fields accompanying injury reports associated with continuous miners, shuttle cars, load-haul-dump vehicles, and personnel transport equipment types in New South Wales underground coal mines.
11/1/2006 - Peer reviewed journal articlesThis report summarizes the results of noise surveys, consisting of full-shift worker noise exposure, time-motion studies, and equipment noise profiling for longwall and continuous miner sections in six underground coal mines.
11/1/2006 - Peer reviewed journal articlesA method (patent pending) has been developed to determine the quality of environmental cab filtration systems. It utilizes specially configured filter cartridges to remove carbon dioxide from the ambient air with the environmental cab's air filtration s...
10/1/2006 - Peer reviewed journal articlesThis article presents a perspective on coal's role in sustaining society by anchoring the message in a transparent way, including a material flow analysis, that links coal's impacts across a range of social and environmental aspects.
Effects of Trace Metals on Particulate Matter Formation in a Diesel Engine: Metal Contents from Ferrocene and Lube Oil10/1/2006 - Peer reviewed journal articlesIn this study, the single particle mass spectrometer (SPMS) was applied to explore the composition of DPM, namely the origin of metals and size preferences of metals originating from metallic fuel additives and lube oil.