Results 481 - 490 of 618

• Performance of a Light Scattering Dust Monitor at Various Air Velocities: Results of Sampling in the Active Versus the Passive Mode
  1/1/2007 - Peer reviewed journal articles
  The 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.
• Evaluation of the Strength of Slender Pillars
  1/1/2007 - Peer reviewed journal articles
  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.
• Water and Slurry Bulkheads in Underground Coal Mines: Design, Monitoring, and Safety Concerns
  12/1/2006 - Peer reviewed journal articles
  This 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 Mines
  12/1/2006 - Peer reviewed journal articles
  This 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.
• Summary of Longwall and Continuous Miner Section Noise Studies in Underground Coal Mines
  11/1/2006 - Peer reviewed journal articles
  This 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.
• A New Concept for Leak Testing Environmental Enclosure Filtration Systems
  11/1/2006 - Peer reviewed journal articles
  A 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...
• Coal's Role in Sustaining Society
  10/1/2006 - Peer reviewed journal articles
  This 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 Oil
  10/1/2006 - Peer reviewed journal articles
  In 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.
• Limestone Mining: Is It Noisy or Not?
  10/1/2006 - Peer reviewed journal articles
  This article describes noise research conducted in limestone mines, detailing the equipment likely to cause worker overexposures, the occupations experiencing overexposures, and the implications for worker noise exposure reduction.
• Ignition of Hydraulic Fluid Sprays by Open Flames and Hot Surfaces
  7/1/2006 - Peer reviewed journal articles
  A study of the ignition of non-fire-resistant hydraulic fluid sprays was conducted by NIOSH. Both an open flame and a hot steel surface were used as the external heat sources.