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A study of RF hazards at low and medium frequencies to blasting in underground coal mines
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CITE Title : A study of RF hazards at low and medium frequencies to blasting in underground coal mines Personal Author(s) : Thompson, R. H.;Stuart, J. G.;Cipkins, A. W.; Corporate Authors(s) : United States. Bureau of Mines.;Franklin Research Center.;Arvin/Calspan Corporation.; Published Date : January 1985 Series : Open file report (United States. Bureau of Mines) ; 45-87;A mining research contract report; URL : https://stacks.cdc.gov/view/cdc/9050 Thompson, R. H. et al. (1985). A study of RF hazards at low and medium frequencies to blasting in underground coal mines. Thompson, R. H. and Stuart, J. G. and Cipkins, A. W. "A study of RF hazards at low and medium frequencies to blasting in underground coal mines" (1985) Thompson, R. H. et al. "A study of RF hazards at low and medium frequencies to blasting in underground coal mines" , 1985 Export RIS Citation Information.
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Personal Author:
Thompson, R. H. ;
Stuart, J. G.
...
January 1985 | Open file report (United States. Bureau of Mines) ; 45-87
Description:
"This paper presents the preliminary safe distances for blasting wiring from typical electromagnetic sources. The distances are for underground coal m...
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[PDF - 7.62 MB]
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[PDF - 7.62 MB]

Development of a phase difference of arrival technique for location of trapped miners
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CITE Title : Development of a phase difference of arrival technique for location of trapped miners Personal Author(s) : Hopkins, W. G.;Church, Ronald H.;Webb, William E.; Corporate Authors(s) : United States. Bureau of Mines.;Tuscaloosa Research Center (United States. Bureau of Mines); Published Date : August 27, 1983 Series : Open file report (United States. Bureau of Mines) ; 46-84;A mining research contract report; URL : https://stacks.cdc.gov/view/cdc/9142 Hopkins, W. G. et al. (1983). Development of a phase difference of arrival technique for location of trapped miners. Hopkins, W. G. and Church, Ronald H. and Webb, William E. "Development of a phase difference of arrival technique for location of trapped miners" (1983) Hopkins, W. G. et al. "Development of a phase difference of arrival technique for location of trapped miners" , 1983 Export RIS Citation Information.
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[PDF - 2.10 MB]
Personal Author:
Hopkins, W. G. ;
Church, Ronald H.
...
August 27, 1983 | Open file report (United States. Bureau of Mines) ; 46-84
Description:
"The development of systems for location of miners who have become entrapped following a mine disaster is one of the major research goals in the Burea...
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[PDF - 2.10 MB]
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[PDF - 2.10 MB]