000 02286nam  2200337za 4500
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003CaOODSP
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008170802s1973    onca    ob   f000 0 eng d
040 |aCaOODSP|beng
043 |an-cn---
0861 |aM38-8/121E-PDF|zM38-8/121
1001 |aTervo, R. O.
24510|aCommunication methods in underground mines |h[electronic resource] / |cR.O. Tervo and M.D. Everell, Mining Research Centre.
260 |aOttawa : |bInformation Canada, |c1973.
300 |ap. 36-43, p. 61-[63] : |bill.
4901 |aReprint series ; |vRS 121
500 |aCover title.
500 |a"Reprinted from Canadian Mining Journal, volume 93: (part one) number 8, pp. 36-43, August; (part two) number 11, pp. 61-63, November, Montreal, 1972."
500 |aHistorical publication digitized from print 2017 [by Natural Resources Canada].
504 |aIncludes bibliographical references.
520 |a“At the request of the Mining Association of Canada, a survey was made of communication methods used in underground mines. This subject has received a great deal of attention in Europe, particularly in modern, mechanized coal mines where the goal has been to increase production and improve efficiency through automation and remote control of machinery. The development of improved systems is continuing both in Europe and North America. The U.S.B.M. has recently sponsored the development of a coal mine rescue and survival system for long-distance "through the earth" transmission. In Europe the first long-range remote control of a mining machine by radio has been achieved. Conventional equipment is continually improved to meet the demand for rugged, reliable equipment that can withstand conditions encountered underground"--p. 36.
69207|2gccst|aMining industry
69207|2gccst|aCommunications
7001 |aEverell, M. D.
7101 |aCanada. |bNatural Resources Canada.
7101 |aCanada. |bDepartment of Energy, Mines and Resources.
7101 |aCanada. |bMines Branch.
830#0|aReprint series - Dept. of Energy, Mines and Resources, Mines Branch ;|vRS 121|w(CaOODSP)9.834843
85640|qPDF|s3.64 MB|uhttps://publications.gc.ca/collections/collection_2017/rncan-nrcan/M38-8/M38-8-121-eng.pdf