Results 111 - 120 of 259

• 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.
• Supplementary Technologies for Advanced Mine Communication Networks
  9/25/2014 - Contracts and cooperative agreements
  A 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.
• An Analysis of Trainers' Perspectives within an Ecological Framework: Factors that Influence Mine Safety Training Processes
  9/1/2014 - Peer reviewed journal articles
  An article about an analysis of interviews with nine mine safety trainers using a social ecological model to examine factors that could be addressed both during and after mine safety training.
• 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.
• 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.
• Assessing the Safety Culture of Underground Coal Mining: Results and Recommendations
  2/23/2014 - Conference papers
  This manuscript details the process undertaken by researchers at the National Institute for Occupational Safety and Health Office of Mine Safety and Health Research to assess the safety culture at five underground coal mines across the United States.
• Post-Accident AMS System
  1/6/2014 - Contracts and cooperative agreements
  A contract to develop a robust, intrinsically safe system that will incorporate atmospheric monitoring, two-way communications and miner tracking, all in a single network.