• 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] 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] 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] An underground electromagnetic sounder experiment Cite CITE Title : An underground electromagnetic sounder experiment Personal Author(s) : Dolphin, Lambert;Bollen, Robert;Oetzel, George; 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. 168 URL : https://stacks.cdc.gov/view/cdc/8827 File Format: Copy Export RIS [PDF - 31.08 KB] Personal Author: Dolphin, Lambert ; Bollen, Robert ; ... 1973 | Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Description: An electromagnetic sounder developed for an archaeological application in Egypt has been successfully tested in a California dolomite mine. Chambers i... File Type: [PDF - 31.08 KB] File Type: [PDF - 31.08 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] 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] State of knowledge of analytical techniques for thru-the-earth electromagnetic wave problems relevant to mine rescue Cite CITE Title : State of knowledge of analytical techniques for thru-the-earth electromagnetic wave problems relevant to mine rescue Personal Author(s) : Wait, James 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. 9-14 URL : https://stacks.cdc.gov/view/cdc/8803 File Format: Copy Export RIS [PDF - 232.46 KB] Personal Author: Wait, James R. 1973 | Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Description: It is the purpose of this paper to review theoretical model concepts in through- the -earth transmission of electromagnetic waves. While the subject i... File Type: [PDF - 232.46 KB] File Type: [PDF - 232.46 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] 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] 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] Summary report of operational communications working group Cite CITE Title : Summary report of operational communications working group Personal Author(s) : Roetter, Martyn 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. 202-217 URL : https://stacks.cdc.gov/view/cdc/8831 File Format: Copy Export RIS [PDF - 640.36 KB] Personal Author: Roetter, Martyn F. 1973 | Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines No Description File Type: [PDF - 640.36 KB] File Type: [PDF - 640.36 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] Guided propagation of radio waves Cite CITE Title : Guided propagation of radio waves Personal Author(s) : Delogne, P.;Deryck, L.;Liegeois, 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. 48-53 URL : https://stacks.cdc.gov/view/cdc/8808 File Format: Copy Export RIS [PDF - 193.64 KB] Personal Author: Delogne, P. ; Deryck, L. ; ... 1973 | Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Description: So far as the propagation of electromagnetic waves is concerned, an underground tunnel behaves like a pipe or hollowed waveguide. Waves propagate in t... File Type: [PDF - 193.64 KB] File Type: [PDF - 193.64 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] 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] 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] 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] 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] 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] Subsurface applications of periodic electromagnetic video pulse signals  Cite CITE Title : Subsurface applications of periodic electromagnetic video pulse signals  Personal Author(s) : Moffatt, David 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. 112-120 URL : https://stacks.cdc.gov/view/cdc/8818 File Format: Copy Export RIS [PDF - 354.63 KB] Personal Author: Moffatt, David L. 1973 | Proceedings of Thru-the-Earth Electromagnetics, August 15-17,1973, Colorado School of Mines Description: Considerable current interest is evident[l,2] in the use of transient electromagnetic methods for subsurface remote sensing. A transient method is dis... File Type: [PDF - 354.63 KB] File Type: [PDF - 354.63 KB]

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