Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Takeshi, SAWA"'
Autor:
Noritoshi Morikawa, Kohei Kazahaya, Takeshi Sawa, Jun-ichi Hirabayashi, Kenji Nogami, Takeshi Ohba, Michiko Ohwada
Publikováno v:
Annals of Geophysics, Vol 54, Iss 2 (2011)
In 1998, there were many volcanic earthquakes recorded at Iwate volcano, Japan. Although an eruption was anticipated, it never occurred. Fumarolic gases were sampled at the volcano on six occasions during 1998 and 1999, and were analyzed for their ch
Externí odkaz:
https://doaj.org/article/a64fa1ab719f499dbe569f448eaa6ffe
Autor:
Takeshi Sawa
Publikováno v:
ACTA IMEKO. 9:221
In this report, the Rockwell indenters and hardness reference blocks obtained from different three manufacturers were evaluated. And these results with the tolerances for the indirect verification prescribed in ISO 6508-2 and ASTM E18 were compared,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fca97dd5a5b99a7aa8400b3ca7adb59c
https://doi.org/10.21014/acta_imeko.v9i5.973
https://doi.org/10.21014/acta_imeko.v9i5.973
Publikováno v:
Bulletin of Volcanology. 73:457-469
The chemical and isotopic compositions of volcanic gases at a borehole and a natural fumarole in the Owakudani geothermal area, Hakone volcano, Japan, have been repeatedly measured since 2001, when a seismic swarm occurred in the area. The CO2/H2O an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fcb959733971a237776dd45ad6163841
https://doi.org/10.1007/s00445-010-0445-9
https://doi.org/10.1007/s00445-010-0445-9
Autor:
Takeshi Sawa
Publikováno v:
Journal of Physics: Conference Series. 1065:062003
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::78f1971eeb5d2b6a124bb0187ba92ffd
https://doi.org/10.1088/1742-6596/1065/6/062003
https://doi.org/10.1088/1742-6596/1065/6/062003
Autor:
Takeshi Ohba, Tsanyao Frank Yang, Noritoshi Morikawa, Hsiao Fen Lee, Kohei Kazahaya, Michiko Ohwada, Tefang Lan, Takeshi Sawa, Noriyasu Taira
Publikováno v:
Applied Geochemistry. 25:513-523
Two distinctive magmatic fluids were recognized in the Tatun volcanic group (TVG), Taiwan. One is a relatively reduced fluid represented by the fumarolic gases at Hsiao-you-ken (HYK) geothermal field. Another is an oxidized fluid containing high conc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f5cded931f18ab33fb39c2621e9f4739
https://doi.org/10.1016/j.apgeochem.2010.01.009
https://doi.org/10.1016/j.apgeochem.2010.01.009
Publikováno v:
Journal of Nuclear Science and Technology. 43:468-473
In this study, we sampled natural fumarolic gases, the gas from a steam well drilled to 800 m depth and natural hot spring waters from the Owakudani geothermal area, Hakone Volcano, Japan. We then measured the chemical composition and the D/H and 18
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::60238ae02256351329404956514ca236
https://doi.org/10.1080/18811248.2006.9711125
https://doi.org/10.1080/18811248.2006.9711125
Autor:
Takeshi Sawa, Kohichi Tanaka
Publikováno v:
Philosophical Magazine A. 82:2187-2190
Nanoindentation tests at the maximum loads P max = 50 and 10 μN were conducted to examine the surface degradation of two glasses: alkaline-earth aluminosilicate as-fused glass for a liquid-crystal substrate and mechanically polished optical lead F-1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f0ddc1ef649ccf13ceb3129525eb4ee2
https://doi.org/10.1080/01418610208235728
https://doi.org/10.1080/01418610208235728
Autor:
Takeshi Sawa, Kohichi Tanaka
Publikováno v:
Philosophical Magazine A. 82:1851-1856
This study demonstrates that the plane-strain Young's moduli E* = E/(1 - v 2) of natural diamonds with a weight of less than 0.2 carat can be determined by the technique of nanoindentation, where E is Young's modulus and v is Poisson's ratio. The ind
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7ce31c606a79ba6baf61c03e33d0853
https://doi.org/10.1080/01418610208235696
https://doi.org/10.1080/01418610208235696
Autor:
Takeshi Sawa, Kohichi Tanaka
Publikováno v:
Journal of Materials Research. 16:3084-3096
Nanoindentation is a simple and effective means for evaluating the mechanical properties of thin films. In such circumstances, nanoindentation testers have been developed and commercialized by some companies. In this study, we tested the standard fou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::de5c09faaf1c01f400c57a9d4afb50eb
https://doi.org/10.1557/jmr.2001.0426
https://doi.org/10.1557/jmr.2001.0426
Publikováno v:
Journal of Materials Research. 14:2228-2232
In a nanometer order nanoindentation test, roundness or truncation of the indenter tip cannot be avoided. In this paper, we have analyzed the indentation problem of a rounded triangular indentation into a layered elastic half-space by a finite elemen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::358848fdb5abea19d91d5900d44f51f7
https://doi.org/10.1557/jmr.1999.0299
https://doi.org/10.1557/jmr.1999.0299