Results 551 - 560 of 618

• A Study of Leakage Rates Through Mine Seals in Underground Coal Mines
  1/1/2016 - Peer reviewed journal articles
  An article detailing the results of a study on leakage rates of coal bed gas through underground coal mine seals at a western U.S. underground coal mine.
• A Study of the Ground Control Effects of Mining Longwall Faces Into Open or Backfilled Entries
  1/1/2001 - Peer reviewed journal articles
  This paper summarizes case studies where unusual circumstances required that a longwall retreat into or through previously driven rooms. Two types of roof failure are identified and discussed.
• A Study on Effects of Size and Structure on Hygroscopicity of Nanoparticles Using a Tandem Differential Mobility Analyzer and TEM
  1/1/2009 - Peer reviewed journal articles
  This study focuses on how hygroscopic properties, deliquesence relative humidity (DRH) and hygroscopic growth factor (GF) of nanoparticles vary with their size and structural properties.
• Submicrometer Elemental Carbon as a Selective Measure of Diesel Particulate Matter in Coal Mines
  10/1/2004 - Peer reviewed journal articles
  A monitoring method for diesel particulate matter was published as Method 5040 by the National Institute for Occupational Safety and Health (NIOSH).
• Suggestion of a Cause-and-Effect Relationship Among Coal Rank, Airborne Dust, and Incidence of Workers' Pneumoconiosis
  11/1/2000 - Peer reviewed journal articles
  Health research studies have identified that the risk of developing and the severity of CWP are directly related to the amount of respirable dust exposure and the coal rank. The Pittsburgh Research Laboratory is pursuing more in-depth studies of coal ch...
• 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.
• Summary of NIOSH Research Completed on Dust Control Methods for the Surface and Underground Drilling
  12/1/2008 - Peer reviewed journal articles
  This paper summarizes the results of research that has been done on respirable dust control for surface mine blasthole drilling operations.
• Surface Haulage Truck Research
  9/1/1999 - Peer reviewed journal articles
  NIOSH studies have focused on off-the-shelf technologies that would enable mine haulage truck drivers to "see" objects and people behind and to the side of a moving vehicle. This paper discusses two types of systems currently available: proximity warni...
• A Survey of Atmospheric Monitoring Systems in U.S. Underground Coal Mines
  4/1/2018 - Peer reviewed journal articles
  Results from a survey conducted to determine the number of atmospheric monitoring systems (AMS) used in underground coal mines in the United States, as well as an examination of how regulation changes have impacted CO sensor use.
• Survey of Noise in Coal Preparation Plants
  1/1/2007 - Peer reviewed journal articles
  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.