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pro vyhledávání: '"H.F. Morrison"'
Akademický článek
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Autor:
H.F. Morrison, J.T. Smith
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 43:1490-1498
Equivalent dipole polarizabilities are a succinct way to summarize the inductive response of an isolated conductive body at distances greater than the scale of the body. At any time lag or frequency, an equivalent dipole polarizability response is co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae4488c76f6f2f42958ce6cb327ba9c4
https://doi.org/10.1109/tgrs.2005.846869
https://doi.org/10.1109/tgrs.2005.846869
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 42:1215-1221
Equivalent dipole polarizability matrices and equivalent dipole location are a convenient way to interpret magnetic field data due to currents induced in isolated conductive objects. The uncertainties in polarizability estimates and in the equivalent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3661ce6b4b0205c7e95b228390b97b0a
https://doi.org/10.1109/tgrs.2004.826788
https://doi.org/10.1109/tgrs.2004.826788
Autor:
H.F. Morrison, J.T. Smith
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 42:1208-1214
Away from a conductive body, secondary magnetic fields due to currents induced in the body by a time-varying external magnetic field are approximated by (equivalent) magnetic dipole fields. Approximating the external magnetic field by its value at th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c6ec93fff4d38de8d4afa8df39a98bb
https://doi.org/10.1109/tgrs.2004.826789
https://doi.org/10.1109/tgrs.2004.826789
Autor:
A.D. Hibbs, S. Kouba, J. Pendleton, D. Boyle, H.F. Morrison, C. Schenkel, T. Martin, A. Agundes, T.R. Petrov, T. Hall
Publikováno v:
Proceedings.
Electromagnetic (EM) resistivity imaging methods have the potential to map subsurface fluid distribution in applications ranging from derisking potential prospects to quantifying the propagation of hydrofractures in unconventional reservoirs. However
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::48393c35316e58aaf238034e09ba979e
https://doi.org/10.3997/2214-4609.20140562
https://doi.org/10.3997/2214-4609.20140562
Publikováno v:
Exploration Geophysics. 29:97-102
We investigate the basic physics of electromagnetic exploration with the aid of a simple model of a thin tabular target in a conductive host. The variables are host conductivity, system dimensions, and frequency of operation. We measure the system ef
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc93b6b7dd2f37040ad9fb7ee065a95d
https://doi.org/10.1071/eg998097
https://doi.org/10.1071/eg998097
Publikováno v:
SEG Technical Program Expanded Abstracts 2011.
Summary Because hand-held systems have the advantage of being lightweight, compact, portable, and deployable under most site conditions, they are particularly useful in areas of dense vegetation or challenging terrain. In heavily wooded areas or area
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::64e3f3e3b4e396e3c3f464e5021531d0
https://doi.org/10.1190/1.3627993
https://doi.org/10.1190/1.3627993
Autor:
H.F. Morrison, David Alumbaugh
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 31:758-763
A technique which uses low frequency electromagnetic fields to image the Earth's conductivity structure between two boreholes is developed. The scheme employs the Born approximation to linearize the integral equation formulation, and a regularized le
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9942fc41f2b91edb64d45e45b48589fc
https://doi.org/10.1109/36.239897
https://doi.org/10.1109/36.239897
Publikováno v:
GEOPHYSICS. 58:482-495
The mathematical formulation of acoustic diffraction tomography is applied to the problem of low frequency, diffusive electromagnetic (EM) fields. EM tomographic inversion, in two‐dimensional (2-D) Cartesian geometry, is illustrated for a crosshole
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3d830f08db7d4a4a1f224e36fd4597f1
https://doi.org/10.1190/1.1443431
https://doi.org/10.1190/1.1443431
With prior funding (UX-1225, MM-0437, and MM-0838), we have successfully designed and built a cart-mounted Berkeley UXO Discriminator (BUD) and demonstrated its performance at various test sites (e.g., Gasperikova et al., 2007, 2009). It is a multi-t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::124e3157fcc61d9206a762fb7d28d735
https://doi.org/10.21236/ada571377
https://doi.org/10.21236/ada571377
