Results 71 - 80 of 784

• Ignition of Methane-Air Mixtures by Laser Heated Small Particles
  5/1/2000 - Peer reviewed journal articles
  Optical technologies have progressed rapidly in the past 15 years. NIOSH is conducting a study to help provide a scientific basis for developing appropriate safety guidelines for optical equipment in underground coal mines.
• Roof Monitoring in Limestone - Experience with the Roof Monitoring Safety System (RMSS)
  1/1/2000 - Conference papers
  This paper outlines the evolution of the RMSS and how it can be used in a comprehensive, proactive ground control safety program. A case history describes the RMSS being used to evaluate a mechanical impact sealing machine at a limestone mine.
• Technology News 478 - Apparatus for Measuring the Gas Content of Coal or Rock Core Samples
  8/1/1999 - Technology News
  An apparatus is described that advances the state of the art in gas content testing of coal or rock core samples. The design goals were to improve sensitivity/accuracy, durability, and ease of operation.
• Laser Ignition of Flammable Gas
  3/1/1999 - Conference papers
  Emerging laser technologies are quickly gaining acceptance in the industrial workplace. This NIOSH research provides a scientific basis for developing safety guidelines for optical equipment in the presence of flammable methane gas and coal dust.
• Distributed Measurement of Conductor Temperatures in Mine Trailing Cables Using Fiber-Optic Technology
  3/1/1998 - Peer reviewed journal articles
  Mine trailing cables operated above safe thermal limits can cause premature insulation failure, increasing electrocution and fire hazards. This paper describes an approach to measuring temperatures within reeled cable under dynamic test conditions.
• Coal Dust Explosibility
  1/1/1996 - Peer reviewed journal articles
  This paper reports US Bureau of Mines (USBM) research on the explosibility of coal dusts. The purpose of this work is to improve safety in mining and other industries that process or use coal.
• Optically Powered Remote Gas Monitor
  1/1/1995 - Reports of Investigations
  Many mines rely on toxic gas sensors to help maintain a safe and healthy work environment. This report describes a prototype monitoring system developed by the USBM that uses light to power and communicate with remote toxic gas sensors.
• Methane Control for Underground Coal Mines
  1/1/1994 - Information Circulars
  This paper describes the history and technology of methane drainage in the US and other countries.
• 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.