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Results 81 - 90 of 577
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...
4/22/2020 - Peer reviewed journal articlesAn article detailing NIOSH tests on an air-conditioned borehole air supply (BAS) and a cryogenic air supply for refuge alternatives.
1/1/2020 - Peer reviewed journal articlesThe article presents seven cases of conventional gas wells within chain pillars and discusses how numerical modeling can provide a more quantifiable approach to assess the stability of the gas wells.
An article describing an extensive in situ backfill instrumentation program designed to monitor long-term stope closure and induced backfill stress.
An article describing a field study conducted to understand the role of gas dynamics in variable broken rock, as well as investigate airflow exchanges between the face and gob.
This paper outlines the design parameters for a shield dust simulator.
This paper discusses the implications of floor dust erosion on rock dusting and sampling procedures for explosion hazard assessment.
11/25/2019 - Peer reviewed journal articlesThis paper quantifies luminance photometer measurement errors when measuring light sources commonly used in U.S. underground coal mines.
Long-Term Stability of a 13.7 x 30.5-m (45 x 100-ft) Undercut Span Beneath Cemented Rockfill at the Turquoise Ridge Mine, Nevada11/20/2019 - Peer reviewed journal articlesAn article presenting the results of an instrumented backfill span study conducted at the Turquoise Ridge Mine.
11/1/2019 - Peer reviewed journal articlesA report detailing the evaluation of a prototype fiber optic methane monitor when exposed to smoke.