Results 91 - 100 of 244

• 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.
• Particle Size and Surface Area Effects on Explosibility Using a 20-L Chamber
  6/25/2015 - Peer reviewed journal articles
  A paper examining the particle size distributions, specific surface areas (SSA), and the explosion suppression effectiveness of various rock dusts.
• Facilitating the Use of Built-in-place Refuge Alternatives in Mines
  4/1/2015 - Reports of Investigations
  An RI that explores 3 issues to facilitate use of BIP RAs: (1) locating BIP RAs further from the face; (2) providing a consistent process for the design and approval of RA stoppings; (3) delivering a reliable supply of clean, breathable air to a BIP RA.
• 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.
• 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.