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Electromagnetic technique for locating boreholes
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CITE Title : Electromagnetic technique for locating boreholes Personal Author(s) : Sacks, H. Kenneth. Corporate Authors(s) : United States. Bureau of Mines. Published Date : 1978 Series : Report of investigations (United States. Bureau of Mines) ; 8302;Report of investigations (United States. Bureau of Mines) ; 8308; URL : https://stacks.cdc.gov/view/cdc/9269
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Personal Author:
Sacks, H. Kenneth.
1978 | Report of investigations (United States. Bureau of Mines) ; 8302
Description:
"The Bureau of Mines has developed hardware for electromagnetic (EM) detection and location of miners trapped in underground coal mines. This report d...
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[PDF - 737.93 KB]
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[PDF - 737.93 KB]

Determination of alpha quartz particle distribution in respirable coal mine dust samples and reference standards
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CITE Title : Determination of alpha quartz particle distribution in respirable coal mine dust samples and reference standards Personal Author(s) : Huggins, Charles W. Corporate Authors(s) : United States. Bureau of Mines. Published Date : 1985 Series : Report of investigations (United States. Bureau of Mines) ; 8975 URL : https://stacks.cdc.gov/view/cdc/10404
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Personal Author:
Huggins, Charles W.
1985 | Report of investigations (United States. Bureau of Mines) ; 8975
Description:
"The objective of this Bureau of Mines research was to compare the size distribution of respirable quartz collected at coal mines with that of several...
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