Results 1 - 10 of 19

• Performance Characteristics for Welded Wire Screen Used for Surface Control in Underground Coal Mines
  2/1/2009 - Conference papers
  The load-deformation characteristics and the load capacity of welded wire screen (roof screen) used to control ground fall were evaluated in the laboratory in a specially built test frame.
• Medium Frequency Radio System Modifications for Refuge Chamber Situational Awareness
  7/19/2016 - Contracts and cooperative agreements
  A contract to modify medium frequency radio systems to improve refuge chamber situational awareness in an underground coal mine.
• Design and Demonstration of a Location Tracking System for Underground Coal Mines (Award 2)
  7/18/2016 - Contracts and cooperative agreements
  A contract to design and demonstrate a location tracking system for underground coal mines using ultra-wideband (UWB) radio technology.
• Horizontal Stress
  9/22/2015 - Research areas
  Horizontal Stress Topic Page
• Enhancing Mine Workers' Self-escape by Integrating Competency Assessment into Training
  6/1/2015 - Reports of Investigations
  NIOSH researchers completed in-depth interviews with nine coal mine safety trainers about teaching and assessing Self-escape competencies (SEC). Based on the results recommendations are provided to improve training, assessment, and maintenance of SEC.
• 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.
• 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.
• Through-The-Earth Wireless Real-Time Two-Way Voice Communications
  9/17/2012 - Contracts and cooperative agreements
  A contract to design, build, and demonstrate a battery-powered, through-the-earth wireless voice communication system for overburdens of up to 600 feet.
• Technical Solutions for Enhancements to Mine Safety Using Barricade II Fire Blocking Gel
  9/17/2012 - Contracts and cooperative agreements
  A contract to evaluate the use of Barricade II Fire Blocking Gel for use in mine fire prevention, control, or fire suppression technologies.