Results 111 - 120 of 283

• Through-the-Earth (TTE) Communications: Range Reliability Improvements
  11/20/2015 - Contracts and cooperative agreements
  A contract to develop and test an enhanced magnetics-based communications waveform with increased ability to provide communications in the presence of ambient noise and interference in order to extend existing magnetics-based technologies.
• Assessing Noise and Dust: NIOSH and Vulcan Materials Co. Team Up to Test How Well Helmet-CAM Technology Measures Miner Exposure Levels
  9/1/2015 - Non-peer reviewed journal articles
  This trade publication piece by NIOSH discusses testing of the Helmet-CAM system. NIOSH partnered with Vulcan Materials Co. to test and evaluate the setup for noise assessment at the company's mining operation near Baltimore.
• Current Knowledge of U.S. Metal and Nonmetal Miner Health: Current and Potential Data Sources for Analysis of Miner Health Status
  2/6/2015 - Peer reviewed journal articles
  A report that discusses current knowledge and potential data sources of MNM miner health.
• Health and Safety Management Systems Through a Multilevel and Strategic Management Perspective: Theoretical and Empirical Considerations
  2/1/2015 - Peer reviewed journal articles
  Multilevel and strategic management theory and research methods are presented and applied to current issues in occupational health and safety, the goal to better understand health and safety management systems from a theoretical and empirical perspective.
• Radio System Modifications for Improved Mine Safety (Medium Frequency)
  11/19/2014 - Contracts and cooperative agreements
  A contract to increase the performance of medium frequency communications in underground mines.
• Education and Training
  10/7/2014 - Research areas
  Education and Training Topic Page
• Through-the-Earth Communication Systems for Underground Coal Mines: Product Final Development and Standardized Interface Definition
  10/6/2014 - Contracts and cooperative agreements
  A contract to extend the operational range of a through-the-earth communications system while maintaining the portability and permissibility of the subsurface unit.
• Sprinkler Head Emergency Communications
  10/6/2014 - Contracts and cooperative agreements
  A 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.
• 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.