Results 61 - 70 of 975

• A Performance Evaluation of Two Overhead Power Line Proximity Warning Devices
  11/1/2008 - Information Circulars
  The results of NIOSH's test of two commercially available proximity warning devices (PWDs) are presented. PWDs warn personnel if mobile equipment moves within some preselected minimum distance of an energized overhead electrical power line.
• Explosion Effects on Mine Ventilation Stoppings
  11/1/2008 - Reports of Investigations
  A joint MSHA and NIOSH study simulated actual coal mine explosion accidents to evaluate blast effects on typical U.S. mine ventilation stoppings, and presents construction and testing methods, explosion test data, and post-explosion conditions.
• Key Design Factors of Enclosed Cab Dust Filtration Systems
  11/1/2008 - Reports of Investigations
  NIOSH experimentally investigated various factor effects on cab air filtration system performance.
• Field Evaluation of the Coal Dust Explosibility Meter
  10/1/2008 - Peer reviewed journal articles
  This paper describes the testing and reliability of results of a NIOSH developed Coal Dust Explosibility Meter (CDEM), a hand-held instrument that uses optical reflectance to measure the explosibility of a rock dust and coal dust mixture.
• The Status of Mine Fire Research in the United States
  9/1/2008 - Conference papers
  This paper summarizes recent accomplishments in a research program that is addressing mine fire prevention, detection, management, and suppression, and provides an overview of the next phase of the NIOSH mine fire research program.
• A Numerical Evaluation on the Effects of Impermeable Faults on Degasification Efficiency and Methane Emissions During Underground Coal Mining
  9/1/2008 - Peer reviewed journal articles
  This study uses reservoir simulations to illustrate the effects of impermeable faults on the production performance of vertical and horizontal degasification boreholes.
• Technology News 531 - Engineering Controls for Reducing Continuous Mining Machine Noise
  9/1/2008 - Technology News
  This publication describes research conducted by NIOSH on producing treatments to reduce noise generated by the continuous mining machine conveyor system. The treatments discussed are the urethane-coated flight bar chain and the dual-sprocket chain.
• Simulation of Spontaneous Heating in Longwall Gob Area with a Bleederless Ventilation System
  8/1/2008 - Peer reviewed journal articles
  To provide insights for the optimization of bleederless ventilation systems for U.S. underground coal mines, a computational fluid dynamics study was conducted to model spontaneous heating in longwall gob areas using a bleederless ventilation system.
• Reducing Dust Exposure from Contaminated Work Clothing with a Stand-Alone Cleaning System
  6/1/2008 - Conference papers
  An alternative method to the original system developed by NIOSH and Unimin Corp to provide for a stand-alone clothes cleaning system.
• The Borehole Monitoring Experiment: Field Measurements of Reservoir Conditions and Responses in Longwall Panel Overburden During Active Mining
  6/1/2008 - Conference papers
  This paper describes the results of a NIOSH borehole monitoring experiment (BME) on an active longwall panel.