Results 1 - 10 of 95

• Advanced Tutorial on Wireless Communication and Electronic Tracking: Introduction
  5/9/2019 - Training materials
  This tutorial provides an advanced discussion of the available CT technologies, operating characteristics and general system performance considerations with descriptions of specific uses for primary and secondary communications.
• Technology News 546 - Medium Frequency Mine Emergency Communications - An Emerging Technology
  2/1/2012 - Technology News
  Medium frequency communications systems do not require a powered underground infrastructure to be installed for operation, and may therefore provide a higher degree of survivability after a mine disaster than other types of systems.
• Theory on the Propagation of UHF Radio Waves in Coal Mine Tunnels
  3/1/1975 - Peer reviewed journal articles
  The theoretical study of UHF radio communication in coal mines, with particular reference to the rate of loss of signal strength along a tunnel, and from one tunnel to another around a corner is the concern of this paper. This work was part of an invest...
• Advancement of Refuge Alternatives for Underground Coal Mines
  5/9/2019 - Research projects
  A project to minimize the risk of heat illness for miners entering an RA, ensure the availability of air delivery and purging systems for RAs, facilitate the use of BIP RAs, and develop a reliable communications system for RAs.
• Advanced Tutorial on Wireless Communication and Electronic Tracking: Mine Operations Center (MOC)
  5/9/2019 - Training materials
  Section 6 of the OMSHR advanced tutorial on wireless commumnication and electronic tracking covering the mine operations center.
• Advanced Tutorial on Wireless Communication and Electronic Tracking: Electronic Tracking Systems Performance
  5/9/2019 - Training materials
  Section 3 of the OMSHR advanced tutorial on wireless communication and electronic tracking covering electronic tracking systems performance.
• Advanced Tutorial on Wireless Communication and Electronic Tracking: CT System Survivability, Reliability, And Availability
  5/9/2019 - Training materials
  Section 4 of the OMSHR advanced tutorial on wireless communication and tracking covering CT system survivability, reliability and availability.
• Advanced Tutorial on Wireless Communication and Electronic Tracking: CT System Safety
  5/9/2019 - Training materials
  Section 5 of the OMSHR advanced tutorial on wireless commnication and elctronic tracking covering CT system safety.
• Advanced Tutorial on Wireless Communication and Electronic Tracking: Communication System Performance
  5/9/2019 - Training materials
  Section 2 of the OMSHR advanced tutorial on wireless communication and electronic tracking covering communication system performance.
• Advanced Tutorial on Wireless Communication and Electronic Tracking: Appendix B
  5/9/2019 - Training materials
  Appendix B of the OMSHR advanced tutorial on wireless communication and electronic tracking covering basic equations.