Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Hiromasa Shima"'
Autor:
Hiromasa Shima
Publikováno v:
Journal of Geography (Chigaku Zasshi). 104:952-971
The history of developments in electrical and electromagnetic exploration techniquesis briefly summarized. In electrical and electromagnetic exploration, subsurface resistivity distributionis obtained from measured data by inversion. The physical mea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6561179bf7cf258a6e8bb301d0718892
https://doi.org/10.5026/jgeography.104.7_952
https://doi.org/10.5026/jgeography.104.7_952
Autor:
Hiromasa Shima
Publikováno v:
GEOPHYSICS. 57:1270-1281
Theoretical changes in the distribution of electrical potential near subsurface resistivity anomalies have been studied using two resistivity models. The results suggest that the greatest response from such anomalies can be observed with buried elect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::09698745bed676acb1d9d6f40eacf9e3
https://doi.org/10.1190/1.1443195
https://doi.org/10.1190/1.1443195
Three types of geotomographic surveys (seismic tomography, resistivity tomography, and radar tomography) were conducted at a highway bridge pier construction site to investigate rock characteristics. After the geophysicalinvestigation, bedrock was ex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a5fc133b2d8d6132d09e9c2f2248298c
https://doi.org/10.1520/stp17248s
https://doi.org/10.1520/stp17248s
Autor:
Hiromasa Shima
Publikováno v:
GEOPHYSICS. 55:682-694
I propose a method that uses alpha centers for two‐dimensional automatic analysis of dc electrical exploration data. Past papers on the alpha centers method have been concerned with relatively simple applications, such as identification of the loca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ae2669dbc35ae5be8f94fa3fd897d11
https://doi.org/10.1190/1.1442880
https://doi.org/10.1190/1.1442880
Publikováno v:
Pipelines 2001.
This paper presents the development and advancement of digital optical scanning technology brought by the SSET. Chronological development history and evolution of the optical scanner technology is outlined. The inner works of the scanner and example
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::258a33352382857d9e9c9d80d999abd5
https://doi.org/10.1061/40574(2001)16
https://doi.org/10.1061/40574(2001)16
Publikováno v:
Proceedings of the 17th IAARC/CIB/IEEE/IFAC/IFR International Symposium on Automation and Robotics in Construction.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac701de16a6a173239ec48eed62a869b
https://doi.org/10.22260/isarc2000/0136
https://doi.org/10.22260/isarc2000/0136
Publikováno v:
SEG Technical Program Expanded Abstracts 1997.
We propose a fast and high quality measurement method for complex resistivity exploration. In this method a frequency domain wave form is used and both current and voltage wave forms are recorded. Then we apply the FFT technique to the data and evalu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f563dd09b06b2e4f52ca0282e482178
https://doi.org/10.1190/1.1885934
https://doi.org/10.1190/1.1885934
Publikováno v:
SEG Technical Program Expanded Abstracts 1996.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e8c5cd47192e28612bab34b7c93c4d8
https://doi.org/10.1190/1.1826810
https://doi.org/10.1190/1.1826810
Publikováno v:
SEG Technical Program Expanded Abstracts 1995.
S U M M A R Y (1) The authors are developing a multi-channel capacitive electrode system that quickly provides images of shallow resistivity structures. The capacitive electrode makes it possible to generate electric current in the ground without bei
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a3e98a20c2b3a67e7b6d3eec05f3f39
https://doi.org/10.1190/1.1887448
https://doi.org/10.1190/1.1887448
Publikováno v:
SEG Technical Program Expanded Abstracts 1994.
An electromagnetic (EM) field can be treated as a static field in free space when the induction number is considerably low. In such a case, measured EM field should include information on magnetic susceptibility. As transmitting frequency is increase
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e1a2fb235a810ee733cafc2fefcc6ec6
https://doi.org/10.1190/1.1932112
https://doi.org/10.1190/1.1932112