Results 91 - 100 of 228

• Earth Conductivity Estimation from Through-the-Earth Measurements of 94 Coal Mines Using Different Electromagnetic Models
  10/1/2014 - Peer reviewed journal articles
  An 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.
• Wireless Through-The-Earth Modeling and Support
  8/15/2014 - Contracts and cooperative agreements
  A contract to determine the factors that most affect signal transmission and reception for through-the-earth communication systems.
• Rapid Response Rescue Drilling System Development for Mine Rescue Application
  8/15/2014 - Contracts and cooperative agreements
  A contract to identify equipment needs, available contractors, and the development and demonstration process for a rapid response drilling system for mine rescue operations.
• Refuge Chamber Deployment and Occupancy Status During Mine Emergency Situations
  8/14/2014 - Contracts and cooperative agreements
  A 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.
• Snake Robot for Mine Rescue
  7/18/2014 - Contracts and cooperative agreements
  A 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.
• Assessment of Whole-body Vibration Exposures and Influencing Factors for Quarry Haul Truck Drivers and Loader Operators
  7/1/2014 - Peer reviewed journal articles
  An article detailing a follow-up investigation to assess vibration exposure on haul trucks and front-end wheel loaders.
• Application of Fatigue Management Systems: Small Mines and Low Technology Solutions
  4/1/2014 - Peer reviewed journal articles
  An article that presents a case study of a small surface mining organization to highlight the fatigue risk management system implemented at the studied mine site.
• Emergency Communications and Tracking
  7/24/2013 - Research areas
  Emergency Communications and Tracking Topic Page
• Helmet Video Recorder Helps to Identify High Dust Exposure
  6/5/2013 - Unpublished documents and reports
  Mine operators have a new tool for identifying specific work tasks that cause high respirable dust exposure for workers.
• Visual feedback system to reduce errors while operating roof bolting machines
  2/1/2013 - Peer reviewed journal articles
  An 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.