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- Mine locations, excavations, and structures:
- Underground
- Document types:
- Contracts and cooperative agreements
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Results 1 - 6 of 6
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7/19/2016 - Contracts and cooperative agreementsA contract to modify medium frequency radio systems to improve refuge chamber situational awareness in an underground coal mine.
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7/18/2016 - Contracts and cooperative agreementsA contract to design and demonstrate a location tracking system for underground coal mines using ultra-wideband (UWB) radio technology.
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10/6/2014 - Contracts and cooperative agreementsA contract to extend the operational range of a through-the-earth communications system while maintaining the portability and permissibility of the subsurface unit.
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10/6/2014 - Contracts and cooperative agreementsA contract to evaluate a fiber optic sprinkler head emergency communications system to determine if this concept can meet the communication, tracking, mine escape, and rescue requirements of an underground communication system.
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9/17/2012 - Contracts and cooperative agreementsA contract to design, build, and demonstrate a battery-powered, through-the-earth wireless voice communication system for overburdens of up to 600 feet.
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9/17/2012 - Contracts and cooperative agreementsA contract to evaluate the use of Barricade II Fire Blocking Gel for use in mine fire prevention, control, or fire suppression technologies.
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Content source: National Institute for Occupational Safety and Health, Mining Program