Results 121 - 130 of 282

• Breaking the Ice on the Booster Fan Dilemma in US Underground Coal Mines
  10/1/2010 - Peer reviewed journal articles
  This paper presents the history of booster fan use in coal mines of the United States during the last 90 years. Changes in regulations, as well as advantages and disadvantages of booster fan use, are discussed. Research and petitions for booster fan use...
• Characteristics of Gait in Restricted Vertical Space Versus Unrestricted Walking
  9/1/2010 - Conference papers
  This study assessed the difference between free cadence walking versus stoopwalking (under a 1.2-m ceiling), four-point crawling (hands and knees), and two-point crawling (knees only), both with and without kneepads.
• Respirable Quartz Hazard Associated with Coal Mine Roof Bolter Dust
  6/1/2010 - Conference papers
  This study examined the potential for coal mine roof bolter dust to be a source of a worker's exposure to respirable quartz.
• Visual Performance for Trip Hazard Detection When Using Incandescent and LED Miner Cap Lamps
  4/1/2010 - Peer reviewed journal articles
  This NIOSH study determined if new LED-based cap lamp technology has an impact on visual performance in the context of detecting trip hazards for the visual environment of an underground coal mine.
• Underground Coal Mining Injury: A Look at How Age and Experience Relate to Days Lost from Work Following an Injury
  4/1/2010 - Peer reviewed journal articles
  This study used the MSHA database on accidents, injury, and illness from the years 2003-2007 to examine how age and experience at the current mine, total years experience as a coal miner, and experience in the current job affects injury severity.
• Report on Early Strength Performance of Modern Day Weak Rock Mass Shotcrete Mixes
  2/1/2010 - Conference papers
  NIOSH is investigating the use of shotcrete in weak rock mass mines with the objective of reducing fatalities and injuries resulting from rock fall accidents.
• Historical Development of Technologies for Controlling Methane in Underground Coal Mines
  1/1/2010 - Conference papers
  This paper discusses several milestone events that show the progress of methane control research in underground coal mines.
• Ground Failures in Coal Mines with Weak Roof
  1/1/2010 - Peer reviewed journal articles
  An understanding of the geologic and stress conditions which lead to roof falls is necessary to assess the risk of failure and to design roof reinforcement to improve stability.
• Regional Bumps: Case Studies from the 1958 Bump Symposium
  1/1/2010 - Peer reviewed journal articles
  This paper looks at historical descriptions of bumps with regional scale, in the hope that by investigating dynamic failure modes with potential to create the next disaster, that disaster might be averted.
• Update on Refuge Alternatives: Research, Recommendations, and Underground Deployment
  12/1/2009 - Peer reviewed journal articles
  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.