Zobrazeno 1 - 10 of 22 pro vyhledávání: '"Tomoaki Uchiyama"'
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Akademický článek
Application of quasi-Monte Carlo and importance sampling to Monte Carlo-based fault tree quantification for seismic probabilistic risk assessment of nuclear power plants
Autor: Kotaro KUBO, Yoichi TANAKA, Yuto HAKUTA, Daisuke ARAKE, Tomoaki UCHIYAMA, Ken MURAMATSU
Publikováno v: Mechanical Engineering Journal, Vol 10, Iss 4, Pp 23-00051-23-00051 (2023)
The significance of probabilistic risk assessments (PRAs) of nuclear power plants against external events was re-recognized after the Fukushima Daiichi Nuclear Power Plant accident. Regarding the seismic PRA, handling correlated failures of systems,
Externí odkaz: https://doaj.org/article/907621725d7c4e538053dc050a665c20
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2
A Scoping Study on the Use of Direct Quantification of Fault Tree Using Monte Carlo Simulation in Seismic Probabilistic Risk Assessments
Autor: Kotaro Kubo, Keita Fujiwara, Yoichi Tanaka, Yuto Hakuta, Daisuke Arake, Tomoaki Uchiyama, Ken Muramatsu
Publikováno v: Volume 13: Risk Assessments and Management.
After the Fukushima Daiichi Nuclear Power Plant accident, the importance of conducting probabilistic risk assessments (PRAs) of external events, especially seismic activities and tsunamis, was recognized. The Japan Atomic Energy Agency has been devel
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5b273801235614afc3d046adca4fbb6a
https://doi.org/10.1115/icone29-88773
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3
HRA Model Modification for Human-Factors Engineering
Autor: Yuto Hakuta, Tomoaki Uchiyama
Publikováno v: Proceedings of the 30th European Safety and Reliability Conference and 15th Probabilistic Safety Assessment and Management Conference.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::76c235f27648ce59eefc751c146aaccf
https://doi.org/10.3850/978-981-14-8593-0_3610-cd
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4
Static friction force between catalyst layer and micro porous layer and its effect on deformations of membrane electrode assemblies under swelling
Autor: Hideyuki Kumei, Tomoaki Uchiyama, Toshihiko Yoshida, Kazuhiko Ishihara
Publikováno v: Journal of Power Sources. 272:522-530
Membrane electrode assemblies (MEAs) composed of a Nafion membrane and heat-transferred catalyst layers (CLs) were employed in this study. The deformation of MEAs between micro porous layers (MPLs)/gas diffusion layers (GDLs) was investigated in resp
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::58d6835898a13799f5d18ae3c9ea818f
https://doi.org/10.1016/j.jpowsour.2014.08.103
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6
Development of a New Mathematical Framework for Seismic Probabilistic Risk Assessment for Nuclear Power Plants – Plan and Current Status –
Autor: Osamu Furuya, Ken Muramatsu, Tsuyoshi Takada, Hitoshi Muta, Tomoaki Uchiyama, Akemi Nishida
Publikováno v: Earthquakes, Tsunamis and Nuclear Risks ISBN: 9784431558200
After the severe accident in Fukushima Daiichi Nuclear Power Station, safety improvement and enhancement have been installed. In midterm and long term, continuous efforts to improve and enhance safety are required, and technical basis and fundamental
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::80c52896b130aa3e63d32abe6f24131f
https://doi.org/10.1007/978-4-431-55822-4_11
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7
Buckling deformation of polymer electrolyte membrane and membrane electrode assembly under humidity cycles
Autor: Tomoaki Uchiyama, Toshihiko Yoshida, Manabu Kato
Publikováno v: Journal of Power Sources. 206:37-46
Wrinkle deformations of both a polymer electrolyte membrane (PEM) and a membrane electrode assembly (MEA) under humidity cycles were analyzed. The NRE211 and NRE212 of commercial Nafion ® were the PEMs used in this study. The MEA was composed of NRE
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cac2ec4feda63c39ea8f9c725dc0b238
https://doi.org/10.1016/j.jpowsour.2012.01.073
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9
Effect of Analytical Methodology for Assessment on Seismically Induced Core Damage
Autor: Kenji Kawaguchi, Toshio Wakabayashi, Tomoaki Uchiyama
Publikováno v: Journal of Power and Energy Systems. 5:279-294
The purpose of this study is to investigate the effects of the difference between analytical methodologies for seismic probabilistic safety assessment (PSA), especially the difference in the probability of system failures and core damage sequences. W
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3d38a482137928f149f02d57cfb7ab68
https://doi.org/10.1299/jpes.5.279
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10
The phosphorescent triplet states of aza-aromatics and their protonated cations in rigid solutions of ethanol and 1-butyl-3-methylimidazolium hexafluorophosphate
Autor: Ryuichiro Matsuo, Kenta Kuwayama, Shunya Kaneko, Azusa Kikuchi, Tomoaki Uchiyama, Kentarou Mogi, Mikio Yagi
Publikováno v: Journal of Photochemistry and Photobiology A: Chemistry. 203:18-23
The lowest excited triplet (T 1 ) states of 2,2′-bipyridine (BPY), 6,6′-dimethyl-2,2′-bipyridine (DMBPY), 2,2′-biquinoline (BQ), 2-phenylpyridine (2-PPY), 3-phenylpyridine (3-PPY), 4-phenylpyridine (4-PPY), quinoline (QN) and isoquinoline (is
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6a91f455adb50e9422ca92ea4a9369f7
https://doi.org/10.1016/j.jphotochem.2008.12.011
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