Results 311 - 320 of 618

• Development of a canopy air curtain to reduce roof bolters' dust exposure
  7/1/2012 - Peer reviewed journal articles
  This experimentally designed air curtain, adapted for roof bolting machines used in this study, is based upon previous design prototypes, computational fluid dynamics (CFD) simulations and trial-and-error testing.
• A provenance study of mineral matter in coal from Appalachian Basin coal mining regions and implications regarding the respirable health of underground coal workers: A geochemical and Nd isotope investigation
  5/1/2012 - Peer reviewed journal articles
  This study presents geochemical data produced from the analysis of coal and adjacent rock samples retrieved from coal mining regions in the U.S. to examine mineral matter provenance.
• Evaluation of an advanced proximity detection system for continuous mining machines
  3/1/2012 - Peer reviewed journal articles
  In this paper, the authors review existing proximity warning technologies, describe ongoing NIOSH research on an intelligent proximity warning system, and summarize current test results.
• Task-Specific Postures in Low-Seam Underground Coal Mining
  3/1/2012 - Peer reviewed journal articles
  The objective of this study was to determine low-seam mine worker exposure to various postures as they pertain to job classifications and job tasks.
• A Shell-Based Magnetic Field Model for Magnetic Proximity Detection Systems
  3/1/2012 - Peer reviewed journal articles
  This paper will present an analysis of the model along with a model construction process.
• Relationship Between Radiated Seismic Energy and Explosive Pressure for Controlled Methane and Coal Dust Explosions in an Underground Mine
  3/1/2012 - Peer reviewed journal articles
  This paper describes the research conducted to quantify a relationship between measured values of radiated seismic energy and peak explosive pressure generated.
• Roof and Rib Fall Incident Trends: a 10-Year Profile
  1/1/2012 - Peer reviewed journal articles
  A comprehensive analysis of these events was conducted to better understand where and why these incidents occurred.
• Development of the NIOSH Determination of Sound Exposures (DOSES) Mining Noise Exposure Management Software
  1/1/2012 - Peer reviewed journal articles
  To help manage noise exposures, the U.S. National Institute for Occupational Safety and Health (NIOSH) developed the Determination of Sound Exposures (DOSES) software and implementation guide for use by mine management and safety personnel.
• The Evolution of Drill Bit and Chuck Isolators to Reduce Roof Bolting Machine Drilling Noise
  1/1/2012 - Peer reviewed journal articles
  This paper documents the evolution of the bit isolator and chuck isolator. Laboratory testing confirms that production bit and chuck isolators reduce the A-weighted sound level generated during drilling by 3.7 to 6.6 dB.
• Evaluation of a Novel Fire Blocking Gel to Prevent and Suppress Mine Fires
  1/1/2012 - Peer reviewed journal articles
  This paper describes tests conducted to evaluate the effectiveness of the Barricade II Fire Blocking Gel.