- Diseases and injuries
- Equipment, tools, and parts
- Geographic regions
- Hazard prevention and control
- Hazards and exposures
- Mine locations, excavations, and structures
- Mining types and methods
- Population groups
- Products and materials
- Research disciplines
- Research methods and measures
- Tasks and activities
- Document types
Results 1 - 10 of 131
10/25/2013 - Training materialsThis tutorial provides an advanced discussion of the available CT technologies, operating characteristics and general system performance considerations with descriptions of specific uses for primary and secondary communications.
2/6/2013 - Training materialsThis tutorial provides a brief overview of CT systems intended to meet the needs of people who require a basic understanding of the distinguishing features and operations of different CT systems.
2/1/2012 - Technology NewsMedium frequency communications systems do not require a powered underground infrastructure to be installed for operation, and may therefore provide a higher degree of survivability after a mine disaster than other types of systems.
3/1/1975 - Peer reviewed journal articlesThe theoretical study of UHF radio communication in coal mines, with particular reference to the rate of loss of signal strength along a tunnel, and from one tunnel to another around a corner is the concern of this paper. This work was part of an invest...
4/26/2018 - Research projectsA project to minimize the risk of heat illness for miners entering an RA, ensure the availability of air delivery and purging systems for RAs, facilitate the use of BIP RAs, and develop a reliable communications system for RAs.
12/1/2017 - Peer reviewed journal articlesAn article presenting the results of a feasibility study on Industrial Internet of Things (IIoT) applications in underground coal mines based on existing communication and tracking infrastructure.
Simulation and Measurement of Through-the-Earth, Extremely Low-Frequency Signals Using Copper-Clad Steel Ground Rods9/1/2017 - Peer reviewed journal articlesA paper presenting the simulation and measurement results of recent NIOSH research aimed at investigating current injection at extremely low-frequency, and in particular, ground contact impedance.
3/13/2017 - Research projectsA project to enhance the understanding of underground mining communication and tracking system performance through the development and validation of radio signal propagation models.
12/17/2016 - Research projectsA project to investigate the feasibility potential to develop and implement IIoT concepts into the mining industry.
11/28/2016 - Contracts and cooperative agreementsA contract to provide a technology upgrade to the Sarcos snake robot that was built to assist in mine emergencies.