Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Katsuhiro Hama"'
Autor:
Yuichi Tomioka, Kotaro Nakata, Kazuya Miyakawa, A. Marui, Takuya Matsumoto, Teruki Iwatsuki, T. Hasegawa, Tomoko Ohta, D. K. Solomon, Katsuhiro Hama, Masahiko Ono
Publikováno v:
Applied Geochemistry. 104:60-70
Noble gases dissolved in groundwater have been used to evaluate characteristics such as origin, residence time and recharge temperature. Although obtaining samples without degassing is highly desired, in certain cases, degassing during sampling is un
Autor:
Takuma Hasegawa, Kotaro Nakata, Yuichi Tomioka, Tomoko Ohta, Shunichi Okamoto, Katsuhiro Hama, Teruki Iwatsuki, Yusuke Watanabe
Publikováno v:
Goldschmidt Abstracts.
Autor:
Katsuhiro Hama, Takuma Hasegawa, Teruki Iwatsuki, Koki Kashiwaya, Masaki Takeda, Takanori Kunimaru, Kazuyuki Goto, Yuichi Tomioka, Kotaro Nakata
Publikováno v:
Geochimica et Cosmochimica Acta. 192:166-185
Groundwater dating was performed simultaneously by the 4He and 14C methods in granite of the Tono area in central Japan. Groundwater was sampled at 30 packed-off sections of six 1000-m boreholes. 4He concentrations increased and 14C concentrations de
Publikováno v:
Journal of Nuclear Fuel Cycle and Environment. 23:121-130
Autor:
R. Metcalfe, Katsuhiro Hama
Publikováno v:
Journal of Japanese Association of Hydrological Sciences. 44:39-64
Autor:
Katsuhiro Hama
Publikováno v:
Journal of the Korean Radioactive Waste Society. 11:115-131
The Mizunami Underground Laboratory (MIU) Project is a comprehensive research project investigating the deep underground environment within crystalline rock being conducted by Japan Atomic Energy Agency. The MIU Project has three overlapping phases:
Autor:
Takuma Hasegawa, Kotaro Nakata, Teruki Iwatsuki, Hiroki Kodama, Tohru Miyajima, Katsuhiro Hama
Publikováno v:
Journal of Hydrology. 489:189-200
Summary Natural DO 14 C is recognized as one of the most useful tracers in the estimation of groundwater age. Fluorescent dye is commonly used as an indicator of drilling fluid contamination during borehole investigation. Fluorescein (FS) is one of t
Autor:
Yoshio Watanabe, Kazuki Iijima, Yoshio Takahashi, Yasuhisa Adachi, Yuichi Niibori, Yohey Suzuki, Seiya Nagao, Akira Kirishima, Tadao Tanaka, Hideki Yoshikawa, Takumi Saito, Takayuki Sasaki, Katsuhiro Hama, Teruki Iwatsuki
Publikováno v:
Journal of Nuclear Fuel Cycle and Environment. 20:3-14
Publikováno v:
Journal of Mineralogical and Petrological Sciences. 108:1-12
Publikováno v:
Engineering Geology. 151:100-111
The excavation of drifts during construction of a geologic repository for high-level nuclear waste (HLW) could affect mechanical and hydraulic properties of the rock within a zone extending a short distance into the rock from drift walls. Related imp