Matches in SemOpenAlex for { <https://semopenalex.org/work/W2141359360> ?p ?o ?g. }
Showing items 1 to 74 of
74
with 100 items per page.
- W2141359360 abstract "Directional borehole radar was developed for detection of three-dimensional (3-D) target localization in single-hole radar measurement. Phase differences among four dipole elements of receiving circular array uniquely determine an azimuth direction of a reflected wave. Receiving voltages of dipole elements are measured by optical electric field sensors whose high electrical isolation feature enables data acquisition of highly correlated signal between the channels. Besides, a switching unit to control resonant frequency of dipole elements was newly developed to reduce mutual coupling between the dipole elements. Laboratory experiments have demonstrated that approximately 30% frequency bandwidth enlargement is achieved by the switching operation without been affected by the mutual coupling in air. The directional borehole radar system was tested in a field test site in Kamaishi-Mine in Japan. All the boreholes available in this test site is filled with water and past borehole radar surveys conducted in this test site revealed presence of complex fracture system. Cross-hole and single-hole borehole radar measurement were conducted to clarify the performance of the resonant switching control and also to detect 3-D geometrical structure of fractures in this test site. 3-D analysis of data acquired by the directional borehole radar in a single-hole measurement clarified azimuth orientation fractures up to a range distance of 15m with a range resolution less than 1m. High reliability of the result was inferred from the fact that individual fracture pattern in a reflection profile showed a consistent color along the depth and also high repeatability of the result was obtained by repeating measurements." @default.
- W2141359360 created "2016-06-24" @default.
- W2141359360 creator A5016303009 @default.
- W2141359360 creator A5048162182 @default.
- W2141359360 date "2009-01-01" @default.
- W2141359360 modified "2023-09-24" @default.
- W2141359360 title "High range resolution directional borehole radar for 3-D fracture delineation" @default.
- W2141359360 cites W2128448306 @default.
- W2141359360 cites W2166832915 @default.
- W2141359360 doi "https://doi.org/10.1109/igarss.2009.5416903" @default.
- W2141359360 hasPublicationYear "2009" @default.
- W2141359360 type Work @default.
- W2141359360 sameAs 2141359360 @default.
- W2141359360 citedByCount "2" @default.
- W2141359360 countsByYear W21413593602018 @default.
- W2141359360 countsByYear W21413593602021 @default.
- W2141359360 crossrefType "proceedings-article" @default.
- W2141359360 hasAuthorship W2141359360A5016303009 @default.
- W2141359360 hasAuthorship W2141359360A5048162182 @default.
- W2141359360 hasConcept C101457746 @default.
- W2141359360 hasConcept C120665830 @default.
- W2141359360 hasConcept C121332964 @default.
- W2141359360 hasConcept C127313418 @default.
- W2141359360 hasConcept C127413603 @default.
- W2141359360 hasConcept C150560799 @default.
- W2141359360 hasConcept C159737794 @default.
- W2141359360 hasConcept C173523689 @default.
- W2141359360 hasConcept C187320778 @default.
- W2141359360 hasConcept C24890656 @default.
- W2141359360 hasConcept C554190296 @default.
- W2141359360 hasConcept C62520636 @default.
- W2141359360 hasConcept C62649853 @default.
- W2141359360 hasConcept C76155785 @default.
- W2141359360 hasConceptScore W2141359360C101457746 @default.
- W2141359360 hasConceptScore W2141359360C120665830 @default.
- W2141359360 hasConceptScore W2141359360C121332964 @default.
- W2141359360 hasConceptScore W2141359360C127313418 @default.
- W2141359360 hasConceptScore W2141359360C127413603 @default.
- W2141359360 hasConceptScore W2141359360C150560799 @default.
- W2141359360 hasConceptScore W2141359360C159737794 @default.
- W2141359360 hasConceptScore W2141359360C173523689 @default.
- W2141359360 hasConceptScore W2141359360C187320778 @default.
- W2141359360 hasConceptScore W2141359360C24890656 @default.
- W2141359360 hasConceptScore W2141359360C554190296 @default.
- W2141359360 hasConceptScore W2141359360C62520636 @default.
- W2141359360 hasConceptScore W2141359360C62649853 @default.
- W2141359360 hasConceptScore W2141359360C76155785 @default.
- W2141359360 hasLocation W21413593601 @default.
- W2141359360 hasOpenAccess W2141359360 @default.
- W2141359360 hasPrimaryLocation W21413593601 @default.
- W2141359360 hasRelatedWork W1967021902 @default.
- W2141359360 hasRelatedWork W2073293930 @default.
- W2141359360 hasRelatedWork W2093429869 @default.
- W2141359360 hasRelatedWork W2117912208 @default.
- W2141359360 hasRelatedWork W2129291693 @default.
- W2141359360 hasRelatedWork W2166832915 @default.
- W2141359360 hasRelatedWork W2323095226 @default.
- W2141359360 hasRelatedWork W2662131230 @default.
- W2141359360 hasRelatedWork W2888757379 @default.
- W2141359360 hasRelatedWork W2988839994 @default.
- W2141359360 hasRelatedWork W3157788281 @default.
- W2141359360 hasRelatedWork W33720950 @default.
- W2141359360 hasRelatedWork W2418959098 @default.
- W2141359360 hasRelatedWork W2754701114 @default.
- W2141359360 hasRelatedWork W2872789087 @default.
- W2141359360 hasRelatedWork W2874094255 @default.
- W2141359360 hasRelatedWork W2926467599 @default.
- W2141359360 hasRelatedWork W2956412040 @default.
- W2141359360 hasRelatedWork W3177514325 @default.
- W2141359360 hasRelatedWork W3182116140 @default.
- W2141359360 isParatext "false" @default.
- W2141359360 isRetracted "false" @default.
- W2141359360 magId "2141359360" @default.
- W2141359360 workType "article" @default.