Zobrazeno 1 - 10 of 187 pro vyhledávání: '"Satoshi Ohdachi"'
1
Theoretical analysis of the saturation phase of the $1/1$ energetic-ion-driven resistive interchange mode
Autor: Donald A. Spong, Jacobo Varela, Luis V. García, Yashika Ghai, Ryosuke Seki, K.Y. Watanabe, Satoshi Ohdachi
Publikováno v: J. Varela et al 2021 Nucl. Fusion 61 126016
The aim of the present study is to analyze the saturation regime of the energetic-ion-driven resistive interchange mode (EIC) in the LHD plasma. A set of non linear simulations are performed by the FAR3d code that uses a reduced MHD model for the the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3e160d287ab51f74b0a37ce7eebccb24
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2
Experimental observations of naturally occurring dust using a high-speed vacuum ultraviolet imaging system in EAST
Autor: Shanwei HOU, Tingfeng MING, Qiqi SHI, Wenmin ZHANG, Feifei LONG, Bang LI, Rongjing DENG, Qing ZHUANG, Xiaoju LIU, Ling ZHANG, Ang TI, Long ZENG, Guoqiang LI, Naoko ASHIKAWA, Satoshi OHDACHI, Xiang GAO
Publikováno v: Plasma Science and Technology. 25:055101
In the ELMy H-mode experiment, naturally occurring dust originating at the high-field side is clearly observed using the high-speed vacuum ultraviolet imaging system developed on the Experimental Advanced Superconducting Tokamak (EAST). The main abla
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::516a79f5160f9889be65ccba24c5f6f9
https://doi.org/10.1088/2058-6272/acaaef
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3
Onset of instability with collapse observed in relatively high density and medium beta regions of LHD
Autor: Yuki Takemura, Kiyomasa Watanabe, Satoru Sakakibara, Satoshi Ohdachi, Yoshiro Narushima, Kenji Tanaka, Tokihiko Tokuzawa
Publikováno v: Physics of Plasmas. 29(9):092505
Edge MHD instabilities with pressure collapse are found in relatively high beta and low magnetic Reynolds number regions with a magnetic axis torus outward-shifted configuration of the large helical device (LHD), and characteristics and onset conditi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::087bbe7bcaff2850871fe1030731ba7c
http://hdl.handle.net/10655/00013485
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5
Mode Structure of Locked-Mode-Like Instability in LHD and Its Effects on Confinement Degradation
Autor: Hisamichi Funaba, Ryo Yasuhara, Y. Takemura, Kiyomasa Watanabe, Hiyori Uehara, D.J. Den Hartog, Satoshi Ohdachi, Yoshiro Narushima, Satoru Sakakibara
Publikováno v: Plasma and Fusion Research. 16:1402091-1402091
The internal mode structure of a precursor with the tearing-parity structure of the locked-mode-like instability is investigated. For the first time, the Thomson scattering system with high temporal and spatial resolution enables us to find the non-r
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2910a33dd8d8b99e341eb78658256f30
https://doi.org/10.1585/pfr.16.1402091
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7
Re-evaluation of the phylogeny based on mitochondrial cytochrome b gene in the house shrew, Suncus murinus-S. montanus species complex, with special reference to Yemen and Myanmar populations
Autor: Satoshi Ohdachi, Gohta Kinoshita, Abdul Nasher, Takahiro Yonezawa, Satoru Arai, Fuka Kikuchi, Kyaw San Lin, Saw Bawm
Publikováno v: Journal of Wildlife and Biodiversity, Vol 1, Iss 2, Pp 79-87 (2017)
The house shrew (Suncus murinus-S. montanus species complex) is considered to have been unintentionally introduced by humans from their original range to other regions around the Indian Ocean and neighboring seas, but this has yet not fully been inve
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::d5ccce0f93162dc33d9a6ddc28824673
http://hdl.handle.net/2115/67789
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8
Experimental examination of a method to estimate temporal effect by neutrons and γ-rays on scintillation light in scintillator-based soft x-ray diagnostic of experimental advanced superconducting tokamak and large helical device
Autor: Ruijie Zhou, Bili Ling, G. Q. Zhong, T. Bando, Yuan Yueming, Satoshi Ohdachi, Liqun Hu
Publikováno v: T. Bando, S. Ohdachi, R. J. Zhou, G. Q. Zhong, Y. Yuan, L. Q. Hu, and B. L. Ling, "Experimental examination of a method to estimate temporal effect by neutrons and γ-rays on scintillation light in scintillator-based soft x-ray diagnostic of experimental advanced superconducting tokamak and large helical device", Review of Scientific Instruments 90, 013507 (2019) https://doi.org/10.1063/1.5054325
Scintillators, which are more tolerant of neutrons or γ-rays than semiconductors, are a promising candidate for soft X-ray (SX) diagnostics in high neutron flux environments such as JT-60SA or ITER. Although scintillators are tolerant of radiations,
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::993c92be220558069c0f72c87922a597
https://pubmed.ncbi.nlm.nih.gov/30709180
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9
Theoretical analysis of energetic-ion-driven resistive interchange mode stabilization strategies using a Landau closure model
Autor: Satoshi Ohdachi, Jacobo Varela, R. Seki, Kiyomasa Watanabe, Luis Garcia, Donald A. Spong
Publikováno v: J. Varela et al 2020 Nucl. Fusion 60 046013
The aim of the present study is to perform a theoretical analysis of different strategies to stabilize energetic-ion-driven resistive interchange mode (EIC) in LHD plasma. We use a reduced MHD for the thermal plasma coupled with a gyrofluid model for
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::130ff0efc5f844acf65dc894c88bd6b5
https://doi.org/10.1088/1741-4326/ab7213
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