Results 31 - 40 of 259

• Remote Fiber-Optic Methane Monitor
  1/1/1992 - Reports of Investigations
  Reports on the U.S. Bureau of Mines development and testing of an instrinsically safe methane monitor based on differential absorption of infrared light.
• Geologic Parameters for Identifying Areas of Increased Methane and Mining-induced Seismicity at Deep Coal Mines
  1/16/2024 - Research projects
  A pilot project to determine the geological variables linked to high methane concentrations and increased mining-induced seismicity in underground coal mines.
• Advanced Strategies for Controlling Exposures to Diesel Aerosols
  12/27/2023 - Research projects
  A project to develop and implement workplace solutions to reduce miners’ overexposure to hazardous airborne contaminants emitted from diesel-powered equipment.
• Methane Drainage and Migration
  2/18/2021 - Research areas
  Methane is an odorless, tasteless, colorless, lighter-than-air gas formed by the decomposition of organic and other carbonaceous materials. From 5% to 15% can form an explosive mixture which, if ignited, can have catastrophic consequences.
• Stability Evaluation of Active Gas Wells in Longwall Abutment Pillars
  9/16/2020 - Research projects
  A project to evaluate and quantify subsurface overburden deformations in longwall abutment pillars under shallow overburden depths, and to employ field instrumentation results and 3D numerical modeling to identify critical parameters.
• Transport Model for Shale Gas Well Leakage Through the Surrounding Fractured Zones of a Longwall Mine
  9/1/2020 - Peer reviewed journal articles
  An article presenting an analytical model of gas transport through fractures in a low permeable stratum.
• Diesel and Welding Aerosols in an Underground Mine
  7/1/2020 - Peer reviewed journal articles
  An article discussing aerosols generated by a diesel-powered vehicle and manual metal arc welding in an underground mine.
• Evaluating the Stability of Shale Gas Wells in Longwall Barrier Pillars
  11/1/2019 - Non-peer reviewed journal articles
  An article discussing NIOSH's research on gas well stability in longwall pillars.
• Ventilation of Longwall Faces
  1/29/2019 - Research projects
  A project to improve the capabilities to detect changing ventilation conditions along a longwall face arising from poor roof caving characteristics and increasing face length.
• Methane Detection and Monitoring
  1/8/2019 - Research areas
  Methane Detection and Monitoring Topic Page