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pro vyhledávání: '"Alan C. Tripp"'
Autor:
Alan C. Tripp
Publikováno v:
GEOPHYSICS. 70:25ND-31ND
Geophysics has proved to be an effective means of prospecting for the raw materials necessary for modern life. Electromagnetic techniques are the methods of choice when buried treasure has an anomalous electrical conductivity or dielectric permittivi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3cf8f31d361eed804f604aeebd3365d0
https://doi.org/10.1190/1.2127107
https://doi.org/10.1190/1.2127107
Autor:
A. A. Ekdale, Alan C. Tripp
Publikováno v:
Journal of Geoscience Education. 53:271-280
Sonification is the process of translating any type of data into sound. In paleontology, it is possible to render various aspects of fossil shapes, such as cephalopod suture patterns or brachiopod commissure lines, as a series of musical tones that c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::638022a19eff9c56b1c3aecb4a5d280c
https://doi.org/10.5408/1089-9995-53.3.271
https://doi.org/10.5408/1089-9995-53.3.271
Publikováno v:
GEOPHYSICS. 66:824-835
The finite‐difference time‐domain method is used for high‐resolution full‐wave analysis of cross‐borehole electromagnetic surveys of buried nickel sulfide deposits. The method is validated against analytical methods for simple cases, but is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9743750e7e6eda8711de7eb10d4f1b8d
https://doi.org/10.1190/1.1444972
https://doi.org/10.1190/1.1444972
Publikováno v:
IEEE Transactions on Antennas and Propagation. 48:1438-1441
Prof. James R. Wait (1951, 1953, 1967) examined electromagnetic (EM) wave propagation in many situations of interest to mining production, including propagation in tunnels, propagation along extended conductors such as cables and drill stems, and pro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::13de3ec201b183e0e7df2b20d118584f
https://doi.org/10.1109/8.898778
https://doi.org/10.1109/8.898778
Publikováno v:
Geophysical Prospecting. 46:589-601
Following previous work on bounds for complex dielectrics, bounds on the complex conductivity of a mixture of two isotropic components can be developed which are independent of any special assumption concerning the geometry of the mixture. If certain
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::42ec1a3d7f6c56c7fbcad28f95358e3e
https://doi.org/10.1046/j.1365-2478.1998.00108.x
https://doi.org/10.1046/j.1365-2478.1998.00108.x
Autor:
Zhongzhou Xiong, Alan C. Tripp
Publikováno v:
GEOPHYSICS. 62:1097-1106
Three‐dimensional electromagnetic (EM) modeling in the frequency range from 100 kHz to about 200 MHz using integral equations is examined. The modeling algorithm is formulated in the frequency domain. Time‐domain responses for ground‐penetratin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed155fc7dd9c53de896c1bd6f3924781
https://doi.org/10.1190/1.1444210
https://doi.org/10.1190/1.1444210
Autor:
Alan C. Tripp, Zhongzhou Xiong
Publikováno v:
GEOPHYSICS. 62:1127-1131
Ground‐penetrating radar (GPR) has been a very efficient tool for mapping shallow targets for applications such as those in geological engineering and environmental management (Fisher et al. 1992). Since the application of GPR depends on the comple
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::13839059e36d5f6f561bf30693488529
https://doi.org/10.1190/1.1444213
https://doi.org/10.1190/1.1444213
Publikováno v:
Journal of geomagnetism and geoelectricity. 49:1659-1676
We discuss in a simplified surface-to-borehole example the resolution of the coefficient of anisotropy λ for an anisotropic layer sandwiched in an isotropic half-space as a function of transmitter-receiver configuration and magnetic field components
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d5b630d7bc39617c9422a23e964b9aa
https://doi.org/10.5636/jgg.49.1659
https://doi.org/10.5636/jgg.49.1659
Autor:
Elena Cherkaeva, Alan C. Tripp
Publikováno v:
Inverse Problems. 12:869-883
In order to determine the conductivity of a body or of a region of the Earth using electrical prospecting, currents are injected on the surface, surface voltage responses are measured, and the data are inverted to a conductivity distribution. In the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dfc5f5c840e8ed3ebaa93fc24e269c82
https://doi.org/10.1088/0266-5611/12/6/005
https://doi.org/10.1088/0266-5611/12/6/005
Autor:
Alan C. Tripp, Tsili Wang
Publikováno v:
GEOPHYSICS. 61:110-120
A finite‐difference, time‐domain solution to Maxwell’s equations has been developed for simulating electromagnetic wave propagation in 3-D media. The algorithm allows arbitrary electrical conductivity and permittivity variations within a model.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1449112d6ac483afc64346f192749503
https://doi.org/10.1190/1.1443930
https://doi.org/10.1190/1.1443930