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Hamahara, Kazuhiro*; Shigemitsu, Masahito*; Noriki, Shinichiro*; Fukuyama, Ryuji*; Aramaki, Takafumi; Otosaka, Shigeyoshi
Engan Kaiyo Kenkyu, 41(1), p.53 - 60, 2003/08
no abstracts in English
/TiC coatingHirohata, Yuko*; Motojima, Dai*; Hino, Tomoaki*; Sengoku, Seio
Journal of Nuclear Materials, 313-316(1-3), p.172 - 176, 2003/03
Times Cited Count：13 Percentile：64.64(Materials Science, Multidisciplinary)Titanium oxide film was coated on entire surface of a V-4Cr-4Ti alloy to reduce hydrogen absorption at low temperature region. The film consisted with a mixture of TiO2 and TiC. The content of TiO was approximately 80%. The hydrogen absorption rate of Ti-oxide coated V-alloy largely decreased with increase of the film thickness. In the case of the film with a thickness of 0.5 micron, the absorption rate was fifty times smaller than that of non-coated V-alloy at the absorption temperature of 573 K.
Aramaki, Takafumi; Watanabe, Shuichi*; Kuji, Tomoyuki*; Wakatsuchi, Masaaki*
Geophysical Research Letters, 28(20), p.3971 - 3974, 2001/10
Times Cited Count：14 Percentile：37.15(Geosciences, Multidisciplinary)Vertical profiles for radiocarbon were described around the Bussol' Strait for the first time. The uniformity of radiocarbon concentration at 0-400 m depth in the Bussol' Strait was observed, and expected that diapycnal mixing occurs by tide between the sub-surface water around the Bussol' Strait and the surface water in the Bussol' Strait. The Okhotsk-Pacific cross-sections through the Bussol' Strait of radiocarbon concentration and density suggested the intermediate water in the Sea of Okhotsk has the role of the Okhotsk-Pacific water exchange, and the deep water between the Sea of Okhotsk and the Pacific Ocean is mixed well rapidly through the Bussol' Strait. Using estimation of bomb produced C-14 inventories in each water column, it was suggested the quantities of the Okhotsk-Pacific water exchange may be essentially small.
