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Igarashi, Masayasu*; Matsumoto, Tomohiro*; Yagihashi, Fujio*; Yamashita, Hiroshi*; Ohara, Takashi; Hanashima, Takayasu*; Nakao, Akiko*; Moyoshi, Taketo*; Sato, Kazuhiko*; Shimada, Shigeru*
Nature Communications (Internet), 8, p.140_1 - 140_8, 2017/07
Times Cited Count：25 Percentile：63.68(Multidisciplinary Sciences)Takaya, Shigeru; Chikazawa, Yoshitaka; Hayashida, Kiichi; Tagawa, Akihiro; Kubo, Shigenobu; Yamashita, Atsushi
Hozengaku, 15(4), p.71 - 78, 2017/01
A maintenance management suitable to nuclear power plants (NPP) at R&D stage was discussed. Objectives of maintenance management of NPP at R&D stage was first clarified. Next, applicability of codes for maintenance management of commercial NPP to NPP at R&D stage was discussed. Then, requirements and consideration for maintenance management of NPP at R&D stage was proposed. Finally, an example that the proposal was applied to setting maintenance program of sodium-cooled fast reactor was presented.
Takaya, Shigeru; Chikazawa, Yoshitaka; Hayashida, Kiichi; Tagawa, Akihiro; Kubo, Shigenobu; Yamashita, Atsushi
JAEA-Research 2016-006, 66 Pages, 2016/07
JAEA-Research-2016-006.pdf:3.4MB
A maintenance management required to nuclear power reactors at the R&D stage was discussed. It is the most important to ensure safety of nuclear power plants by taking account of characteristics of nuclear power reactors at the R&D stage. In addition, it is needed to establish a system of maintenance management technologies suitable for reactor types. In this report, objectives of maintenance management of nuclear power reactors at the R&D stage was clarified. Next, requirements and consideration for maintenance management was discussed according to the objectives. "Codes for maintenance management of nuclear power plants" and "Guides for maintenance management of nuclear power plants" were refereed in the discussion. Then, a draft of codes for maintenance management of nuclear power plants at the R&D stage were newly proposed. Finally, an example that the draft codes were applied to components containing sodium, typical components of sodium-cooled fast reactor, was presented.
Nagae, Yuji; Onizawa, Takashi; Takaya, Shigeru; Yamashita, Takuya
Proceedings of 2014 ASME Pressure Vessels and Piping Conference (PVP 2014) (DVD-ROM), 9 Pages, 2014/07
Ueno, Fumiyoshi*; Nagae, Yuji; Nemoto, Yoshiyuki*; Miwa, Yukio*; Takaya, Shigeru; Hoshiya, Taiji; Tsukada, Takashi*; Aoto, Kazumi; Ishii, Toshimitsu*; Omi, Masao*; et al.
JNC TY9400 2005-013, 150 Pages, 2005/09
JNC-TY9400-2005-013.pdf:37.33MB
None
Ueno, Fumiyoshi; Nagae, Yuji*; Nemoto, Yoshiyuki; Miwa, Yukio; Takaya, Shigeru*; Hoshiya, Taiji*; Tsukada, Takashi; Aoto, Kazumi*; Ishii, Toshimitsu; Omi, Masao; et al.
JAERI-Research 2005-023, 132 Pages, 2005/09
JAERI-Research-2005-023.pdf:33.03MB
JAERI and JNC have started a JAERI-JNC joint research program in fiscal year 2003, which has been aimed for efficient progress and synergistic effect on the research activities in both Institutes. This study has been chosen one of the joint research themes because it has been our common objective in the field of structural materials of FBR and LWR components. The purpose of the study is to clarify damage mechanism of structural materials used under irradiation, and then to develop the methods for damage evaluation and detection in earlier stage of progressing process of damage. In fiscal year 2004 and 2005, micro-corrosion measurement, electrochemical corrosion test and leakage magnetic flux density measurement apparatuses were developed and equipped in two hot facilities and irradiated and unirradiated crept specimens, irradiated high purity model austenitic stainless alloys were also prepared and applied to this study. These apparatuses and specimens were used for damage evaluation, and these feasibilities for nuclear power plant materials were studied.
ray from fuel of High Temperature Engineering Test Reactor; Method of measurement and resultsFujimoto, Nozomu; Nojiri, Naoki; Takada, Eiji*; Yamashita, Kiyonobu; Kikuchi, Takayuki; Nakagawa, Shigeaki; Kojima, Takao; Umeta, Masayuki; Hoshino, Osamu; Kaneda, Makoto*; et al.
JAERI-Tech 2001-002, 64 Pages, 2001/02
JAERI-Tech-2001-002.pdf:3.64MB
no abstracts in English
Yoshida, Hidetoshi; Naito, Osamu; Yamashita, Osamu; Kitamura, Shigeru; *; *; *; *; Hatae, Takaki; Nagashima, Akira; et al.
Review of Scientific Instruments, 70(1), p.751 - 754, 1999/01
Times Cited Count：15 Percentile：68.21(Instruments & Instrumentation)no abstracts in English
Hatae, Takaki; Nagashima, Akira; Kitamura, Shigeru; *; Yoshida, Hidetoshi*; Naito, Osamu; Yamashita, Osamu; Shimizu, Kazuaki; *; Kondoh, Takashi
Review of Scientific Instruments, 70(1), p.772 - 775, 1999/01
Times Cited Count：62 Percentile：93.65(Instruments & Instrumentation)no abstracts in English
Yoshida, Hidetoshi; Naito, Osamu; Matoba, Toru; Yamashita, Osamu; Kitamura, Shigeru; Hatae, Takaki; Nagashima, Akira
Review of Scientific Instruments, 68(2), p.1152 - 1161, 1997/02
Times Cited Count：13 Percentile：68.1(Instruments & Instrumentation)no abstracts in English
Hatae, Takaki; Nagashima, Akira; Yoshida, Hidetoshi; Naito, Osamu; Yamashita, Osamu; Kitamura, Shigeru; *; Matoba, Toru; *
Fusion Engineering and Design, 34-35, p.621 - 624, 1997/00
Times Cited Count：7 Percentile：52.66(Nuclear Science & Technology)no abstracts in English
Yoshida, Hidetoshi; Naito, Osamu; Yamashita, Osamu; Kitamura, Shigeru; Hatae, Takaki; Nagashima, Akira
JAERI-Research 96-061, 20 Pages, 1996/11
JAERI-Research-96-061.pdf:1.1MB
no abstracts in English
Yoshida, Hidetoshi; Naito, Osamu; Yamashita, Osamu; Kitamura, Shigeru; Nagashima, Akira; Matoba, Toru
Review of Scientific Instruments, 66(1), p.143 - 147, 1995/01
Times Cited Count：24 Percentile：84.17(Instruments & Instrumentation)no abstracts in English
Sekimoto, Yoshinori*; Yamashita, Shigeru*; Ishijima, Yoji*; Ezaki, Tetsuro*; Matsuki, Koji*
PNC TJ1559 92-002, 112 Pages, 1992/03
None
Ohara, Yoshihiro; Tanaka, Shigeru; Akiba, Masato; Araki, Masanori; Fujisawa, Noboru; Hanada, Masaya; Inoue, Takashi; *; Mizuno, Makoto; Okumura, Yoshikazu; et al.
JAERI-M 91-052, 176 Pages, 1991/03
no abstracts in English
Inoue, Takashi; Akiba, Masato; Araki, Masanori; Hanada, Masaya; *; Mizuno, Makoto; Okumura, Yoshikazu; Ohara, Yoshihiro; Seki, Masahiro; Tanaka, Shigeru; et al.
Fusion Engineering and Design, 18, p.369 - 376, 1991/00
Times Cited Count：3 Percentile：40.77(Nuclear Science & Technology)no abstracts in English
Mizuno, Makoto; Dairaku, Masayuki; Ohara, Yoshihiro; *; Tanaka, Shigeru; *; Watanabe, Kazuhiro; Yamashita, Y.*;
IEEE 13th Symp. on Fusion Engineering, Vol. 1, p.574 - 577, 1989/00
no abstracts in English
Konoshima, Shigeru; Shitomi, Morimasa; Nakamura, Yukiharu; Chiba, Shinichi; Yamashita, Osamu
Kaku Yugo Kenkyu, 59(SPECIAL ISSUE), p.319 - 328, 1988/00
no abstracts in English
Kano, Shigeru; Kobayashi, Hidekazu; Yamashita, Teruo; Sasage, Kenichi
no journal, ,
no abstracts in English
Yamashita, Kiyonobu; Kusunoki, Tsuyoshi; Sasajima, Fumio; Wada, Shigeru
no journal, ,
no abstracts in English
