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Results 41 - 50 of 130
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10/1/2014 - Peer reviewed journal articlesAn analyis of TTE measurement data collected from 94 mines in order to determine the apparent conductivity of the overburden based on three different models: a homogenous half-space model, a thin sheet model, and an attenuation factor or Q-factor model.
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9/25/2014 - Contracts and cooperative agreementsA contract to develop a Universal Signal Evaluation Package for 75- and 150-MHz bands, adapt a passive magnetic amplifier for 900-MHz, and investigate energy harvesting technologies.
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8/15/2014 - Contracts and cooperative agreementsA contract to determine the factors that most affect signal transmission and reception for through-the-earth communication systems.
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8/14/2014 - Contracts and cooperative agreementsA contract to incorporate a wireless base station into the MagneLink Magnetic Communication System (MCS) and to develop a mechanism that automatically activates a portable wireless text messaging device when a refuge chamber is opened or deployed.
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7/18/2014 - Contracts and cooperative agreementsA contract to leverage the on-going development of the new generation Tandem Track (TT) snake robot, by modifying this new system in a way that makes it suitable for operations in underground mines.
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1/6/2014 - Contracts and cooperative agreementsA contract to develop a robust, intrinsically safe system that will incorporate atmospheric monitoring, two-way communications and miner tracking, all in a single network.
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7/24/2013 - Research areasEmergency Communications and Tracking Topic Page
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2/1/2013 - Peer reviewed journal articlesAn experiment was conducted to explore coding and directional compatibility on roof bolting equipment and to determine the feasibility of a visual feedback system to alert operators of critical movements and workers in close proximity to the equipment.
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12/1/2012 - Technology NewsA technology to provide a two-way communications system to improve miners' ability to communicate from underground to surface.
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9/22/2012 - Contracts and cooperative agreementsA contract to develop a practical methodology with appropriate technical guidelines that enables mine operators and enforcement agencies to evaluate the reliability of underground communications, tracking, and atmospheric monitoring systems.
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Content source: National Institute for Occupational Safety and Health, Mining Program