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12/1/1973 - Conference proceedings, Contract reportsA need arose to assemble individuals who have been active in current research on the topic of electromagnetic communications systems so that the problem of how information may be conveyed by electromagnetic waves propagating through rock media without t...
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1/1/1972 - Conference papersAn environment monitoring and communication system has been installed in the Bruceton Mine, and research is under way to improve mine safety. Standard day-to-day mine communications are available, along with additional systems installed to permit experi...
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Content source: National Institute for Occupational Safety and Health, Mining Program