• Summary report of uplink and downlink communications working group  Cite CITE Title : Summary report of uplink and downlink communications working group  Personal Author(s) : Lagace, Robert L. Conference Author(s) : Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines) Published Date : 1973 Series : Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Source : Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 178-201 URL : https://stacks.cdc.gov/view/cdc/8830 File Format: Copy Export RIS [PDF - 1.14 MB] Personal Author: Lagace, Robert L. 1973 | Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Description: The attention of this group was focussed on four through-the-earth communication systems that are presently of high interest to the U.S. Bureau of Min... File Type: [PDF - 1.14 MB] File Type: [PDF - 1.14 MB] The perturbation of alternating electromagnetic fields by three-dimensional bodies Cite CITE Title : The perturbation of alternating electromagnetic fields by three-dimensional bodies Personal Author(s) : Jones, F. W. Conference Author(s) : Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines) Published Date : 1973 Series : Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Source : Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 86-91 URL : https://stacks.cdc.gov/view/cdc/8813 File Format: Copy Export RIS [PDF - 143.65 KB] Personal Author: Jones, F. W. 1973 | Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Description: The perturbation of alternating electromagnetic fields by three-dimensional structures is considered. The general model is that of a semi-infinite con... File Type: [PDF - 143.65 KB] File Type: [PDF - 143.65 KB] Summary report on electromagnetic noise measurement program Cite CITE Title : Summary report on electromagnetic noise measurement program Personal Author(s) : Adams, John W. Conference Author(s) : Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines) Published Date : 1973 Series : Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Source : Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 169 URL : https://stacks.cdc.gov/view/cdc/8828 File Format: Copy Export RIS [PDF - 37.61 KB] Personal Author: Adams, John W. 1973 | Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Description: The present status of the National Bureau of Standards program is that many magnetic tapes of analog data have been recorded in four major mines. Each... File Type: [PDF - 37.61 KB] File Type: [PDF - 37.61 KB] Admittance and effective height of buried antennas Cite CITE Title : Admittance and effective height of buried antennas Personal Author(s) : Franceschetti, Giorgio Conference Author(s) : Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines) Published Date : 1973 Series : Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Source : Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 162-167 URL : https://stacks.cdc.gov/view/cdc/8822 File Format: Copy Export RIS [PDF - 27.45 KB] Personal Author: Franceschetti, Giorgio 1973 | Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Description: Explicit expressions are presented for the input admittance and effective height of several buried metal antennas, namely: (i) prolate spheroidal; (ii... File Type: [PDF - 27.45 KB] File Type: [PDF - 27.45 KB] Objectives and constraints of through-the-earth electromagnetic communication systems Cite CITE Title : Objectives and constraints of through-the-earth electromagnetic communication systems Personal Author(s) : Parkinson, Howard E. Conference Author(s) : Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines) Published Date : 1973 Series : Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Source : Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 1-8 URL : https://stacks.cdc.gov/view/cdc/8802 File Format: Copy Export RIS [PDF - 502.00 KB] Personal Author: Parkinson, Howard E. 1973 | Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Description: In 1969, new coal mine health and safety legislation was enacted in the United States. As a result of this legislation, the Department of Interior, Bu... File Type: [PDF - 502.00 KB] File Type: [PDF - 502.00 KB] Feasibility of a radiocommunication in mine galleries by means of a coaxial cable having a high coupling impedance Cite CITE Title : Feasibility of a radiocommunication in mine galleries by means of a coaxial cable having a high coupling impedance Personal Author(s) : Fontaine, J.;Demoulin, B.;Degauque, P.;Gabillard, R.; Conference Author(s) : Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines) Published Date : 1973 Series : Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Source : Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 130-139 URL : https://stacks.cdc.gov/view/cdc/8820 File Format: Copy Export RIS [PDF - 326.47 KB] Personal Author: Fontaine, J. ; Demoulin, B. ... 1973 | Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Description: To realize a radiowave communication along mine galleries a few kilometers long without repeater, we show that it is possible to use a coaxial cable b... File Type: [PDF - 326.47 KB] File Type: [PDF - 326.47 KB] Design of an ELF noise processor Cite CITE Title : Design of an ELF noise processor Personal Author(s) : Evans, J. E.;Griffiths, A. S.; Conference Author(s) : Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines) Published Date : 1973 Series : Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Source : Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 161 URL : https://stacks.cdc.gov/view/cdc/8825 File Format: Copy Export RIS [PDF - 45.34 KB] Personal Author: Evans, J. E. ; Griffiths, A. S. 1973 | Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Description: Noise processing experiments with ELF (3 to 300 Hz) atmospheric noise and signals in the 40 to 80 Hz range are described. The primary purpose of the e... File Type: [PDF - 45.34 KB] File Type: [PDF - 45.34 KB] Theory and experiments relating to electromagnetic fields of buried sources with consequences to communication and location Cite CITE Title : Theory and experiments relating to electromagnetic fields of buried sources with consequences to communication and location Personal Author(s) : Geyer, Richard G. Conference Author(s) : Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines) Published Date : 1973 Series : Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Source : Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 20-33 URL : https://stacks.cdc.gov/view/cdc/8805 File Format: Copy Export RIS [PDF - 370.87 KB] Personal Author: Geyer, Richard G. 1973 | Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Description: One aspect of a program to improve the chances of survival following coal mine disasters is the development of a communications system which will allo... File Type: [PDF - 370.87 KB] File Type: [PDF - 370.87 KB] Summary report of electromagnetic location techniques working group  Cite CITE Title : Summary report of electromagnetic location techniques working group  Personal Author(s) : Farstad, Arnold J. Conference Author(s) : Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines) Published Date : 1973 Series : Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Source : Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 171-177 URL : https://stacks.cdc.gov/view/cdc/8829 File Format: Copy Export RIS [PDF - 288.74 KB] Personal Author: Farstad, Arnold J. 1973 | Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Description: The Location Group conversed in the Petroleum Room of the Green Center with the purpose of addressing the following list of topics in light of the Bur... File Type: [PDF - 288.74 KB] File Type: [PDF - 288.74 KB] Use of the zonal harmonic series for obtaining numerical solutions to electromagnetic boundary value problems Cite CITE Title : Use of the zonal harmonic series for obtaining numerical solutions to electromagnetic boundary value problems Personal Author(s) : Lewis, Richard L. Conference Author(s) : Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines) Published Date : 1973 Series : Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Source : Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 98-103 URL : https://stacks.cdc.gov/view/cdc/8816 File Format: Copy Export RIS [PDF - 522.62 KB] Personal Author: Lewis, Richard L. 1973 | Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Description: This is a discussion of the application of the zonal harmonic series to problems involving dipole sources in the vicinity of spherical boundaries. The... File Type: [PDF - 522.62 KB] File Type: [PDF - 522.62 KB] A discussion on the three-dimensional boundary value problem for electromagnetic fields Cite CITE Title : A discussion on the three-dimensional boundary value problem for electromagnetic fields Personal Author(s) : Rankin, David Conference Author(s) : Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines) Published Date : 1973 Series : Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Source : Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 92-94 URL : https://stacks.cdc.gov/view/cdc/8814 File Format: Copy Export RIS [PDF - 123.86 KB] Personal Author: Rankin, David 1973 | Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Description: Three -dimensional boundary value problems are difficult to solve. Indeed, while the separation of the scalar wave equation can be effected in 11 diff... File Type: [PDF - 123.86 KB] File Type: [PDF - 123.86 KB] Theory of the propagation of UHF radio waves in coal mine tunnels Cite CITE Title : Theory of the propagation of UHF radio waves in coal mine tunnels Personal Author(s) : Emslie, Alfred G.;Lagace, Robert L.;Strong, Peter F.; Conference Author(s) : Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines) Published Date : 1973 Series : Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Source : Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 38-48 URL : https://stacks.cdc.gov/view/cdc/8807 File Format: Copy Export RIS [PDF - 500.48 KB] Personal Author: Emslie, Alfred G. ; Lagace, Robert L. ... 1973 | Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Description: This paper is concerned with the theoretical study of UHF radio communication in coal mines, with particular reference to the rate of loss of signal s... File Type: [PDF - 500.48 KB] File Type: [PDF - 500.48 KB] Amplitude statistics of electromagnetic noise in coal mines Cite CITE Title : Amplitude statistics of electromagnetic noise in coal mines Personal Author(s) : Kanda, M.;Adams, J.W.; Conference Author(s) : Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines) Published Date : 1973 Series : Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Source : Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 156-160 URL : https://stacks.cdc.gov/view/cdc/8824 File Format: Copy Export RIS [PDF - 145.82 KB] Personal Author: Kanda, M. ; Adams, J.W. 1973 | Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Description: A system for measuring amplitude probability distributions (APD’s) of electromagnetic noise in coal mines is described and typical APD’s from an u... File Type: [PDF - 145.82 KB] File Type: [PDF - 145.82 KB] The electromagnetic response of a buried sphere for buried dipole excitation  Cite CITE Title : The electromagnetic response of a buried sphere for buried dipole excitation  Personal Author(s) : Hill, D. A.;Wait, J. R.; Conference Author(s) : Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines) Published Date : 1973 Series : Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Source : Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 81-85 URL : https://stacks.cdc.gov/view/cdc/8812 File Format: Copy Export RIS [PDF - 186.51 KB] Personal Author: Hill, D. A. ; Wait, J. R. 1973 | Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Description: The feasibility of locating a buried vertical magnetic dipole source (horizontal loop) from surface measurements of the vertical and horizontal magnet... File Type: [PDF - 186.51 KB] File Type: [PDF - 186.51 KB] Experimental comparison of buried and elevated ELF transmitting antennas Cite CITE Title : Experimental comparison of buried and elevated ELF transmitting antennas Personal Author(s) : Bannister, Peter R.;Williams, Frederick J.;Katan, J. Robert;Ball, John R.; Conference Author(s) : Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines) Published Date : 1973 Series : Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Source : Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 162-167 URL : https://stacks.cdc.gov/view/cdc/8826 File Format: Copy Export RIS [PDF - 249.63 KB] Personal Author: Bannister, Peter R. ; Williams, Frederick J. ... 1973 | Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Description: During the last week in March and the first week in April, 1973, the Naval Underwater Systems Center measured the 76 Hz magnetic field strength (in Wi... File Type: [PDF - 249.63 KB] File Type: [PDF - 249.63 KB] Electromagnetic survey method applicable to underground quarries; proceedings of thru-the-earth electromagnetics workshop Cite CITE Title : Electromagnetic survey method applicable to underground quarries; proceedings of thru-the-earth electromagnetics workshop Personal Author(s) : Gabillard, R.;Dubus, J. P.;Cherpereel, F.; Conference Author(s) : Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines) Published Date : 1973 Series : Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Source : Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 121-129 URL : https://stacks.cdc.gov/view/cdc/8819 File Format: Copy Export RIS [PDF - 739.67 KB] Personal Author: Gabillard, R. ; Dubus, J. P. ... 1973 | Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Description: We present an electromagnetic method taken from the well known radiogoniometer that allows us to locate at the surface of the ground the vertical axis... File Type: [PDF - 739.67 KB] File Type: [PDF - 739.67 KB] Reply to: "A Discussion on the three-dimensional boundary value problem for electromagnetic field" by D. Rankin Cite CITE Title : Reply to: "A Discussion on the three-dimensional boundary value problem for electromagnetic field" by D. Rankin Personal Author(s) : Jones, F. W. Conference Author(s) : Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines) Published Date : 1973 Series : Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Source : Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 95-97 URL : https://stacks.cdc.gov/view/cdc/8815 File Format: Copy Export RIS [PDF - 100.72 KB] Personal Author: Jones, F. W. 1973 | Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Description: I do not regard the criticism by Rankin of my work as valid or even meaningful. I strongly reject the assertion by Rankin that my results are invalid.... File Type: [PDF - 100.72 KB] File Type: [PDF - 100.72 KB] Electromagnetic transmission and detection at deep depths Cite CITE Title : Electromagnetic transmission and detection at deep depths Personal Author(s) : Starkey, D. B. Conference Author(s) : Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines) Published Date : 1973 Series : Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Source : Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 140-148 URL : https://stacks.cdc.gov/view/cdc/8821 File Format: Copy Export RIS [PDF - 273.87 KB] Personal Author: Starkey, D. B. 1973 | Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Description: nvestigation into the expressions of the field produced by a loop over a conducting half space or in an infinite conducting half space are well docume... File Type: [PDF - 273.87 KB] File Type: [PDF - 273.87 KB] Performance of manpack electromagnetic location equipment in trapped miner location tests Cite CITE Title : Performance of manpack electromagnetic location equipment in trapped miner location tests Personal Author(s) : Farstad, Arnold J. Conference Author(s) : Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines) Published Date : 1973 Series : Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Source : Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 62-72 URL : https://stacks.cdc.gov/view/cdc/8810 File Format: Copy Export RIS [PDF - 1010.41 KB] Personal Author: Farstad, Arnold J. 1973 | Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Description: The use of radio signals for underground communications was considered as early as the mid-1920's [1] - [4] . However, early experiments did not produ... File Type: [PDF - 1010.41 KB] File Type: [PDF - 1010.41 KB] Radio propagation measurements in coal mines at UHF and VLF Cite CITE Title : Radio propagation measurements in coal mines at UHF and VLF Personal Author(s) : Goddard, Arthur E. Conference Author(s) : Thru-the-Earth-Electromagnetics Workshop (1973 : Colorado School of Mines) Published Date : 1973 Series : Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Source : Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines, p. 54-61 URL : https://stacks.cdc.gov/view/cdc/8809 File Format: Copy Export RIS [PDF - 346.24 KB] Personal Author: Goddard, Arthur E. 1973 | Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Description: Radio propagation measurements were conducted in a coal mine at UHF (200 to 1000 MHz) and VLF (1 to 50 kHz) to characterize the transmission loss of i... File Type: [PDF - 346.24 KB] File Type: [PDF - 346.24 KB]

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