Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Shinichiro, Kojima"'
Autor:
Masakatsu Fukumoto, Qilin Yue, Kazuaki Hanada, Shinichiro Kojima, Tomohide Nakano, Naoaki Yoshida, Ryuya Ikezoe, Yoshihiko Nagashima, Takeshi Ido, Takumi Onchi, Hiroshi Idei, Hiroki Iguchi, Takumi Komiyama, Taiichi Shikama, Akira Ejiri, Suguru Masuzaki, Mizuki Sakamoto, Yoshio Ueda, Kengoh Kuroda, Kaori Kono, Shun Shimabukuro, Aki Higashijima
Publikováno v:
Nuclear Fusion, Vol 64, Iss 6, p 066022 (2024)
Electron cyclotron wall conditioning with neon gas (Ne-ECWC) has been performed on the normal conducting spherial tokamak QUEST with metal walls under a trapped particle configuration with O-mode EC waves including X-mode polarization with a frequenc
Externí odkaz:
https://doaj.org/article/dc7328719089407c8a782f4e964d75b1
Autor:
Kazuo Toi, Takumi Onchi, Hideki Zushi, Kengoh Kuroda, Hiroshi Idei, Kazuaki Hanada, Makoto Hasegawa, Shinichiro Kojima, Ryuya Ikezoe, Takeshi Ido, Shoji Kawasaki, Aki Higashijima, QUEST Experiment Group
Publikováno v:
Nuclear Fusion, Vol 63, Iss 10, p 106018 (2023)
A novel divertor biasing by four biasing plates distributed toroidally (TDDB) on the upper divertor target plate is applied to low density tokamak plasmas started-up by 28 GHz 2nd harmonic electron cyclotron current drive (ECCD) in a quasi-double nul
Externí odkaz:
https://doaj.org/article/4295ba83a6c74210b5783eaa3a446b35
The plasma position and shaping, and the plasma current are controlled by poloidal field (PF) coils consisting of superconductors, and the fast plasma position change is controlled by in-vessel coils consisting of normal conductors on recent tokamaks
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=jairo_______::fbdad2bf1c6cf50eb36812e1ecb75cc5
https://repo.qst.go.jp/records/86402
https://repo.qst.go.jp/records/86402
垂直位置不安定性による垂直位置移動現象（VDE）の制御はプラズマの高性能化に向け必要不可欠である。特に、高プラズマ閉じ込め、高プラズマ電流駆動に寄与する高楕円度プラズマは
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=jairo_______::a954ab7a5469d0eda4610d1fd19f35bd
https://repo.qst.go.jp/records/83934
https://repo.qst.go.jp/records/83934
Autor:
Shinichiro, Kojima, Hanada, Kazuaki, Idei, Hiroshi, Onchi, Takumi, Ikezoe, Ryuya, Nagashima, Yoshihiko, Hasegawa, Makoto, Kuroda, Kengoh, Nakamura, Kazuo, Higashijima, Aki, Nagata, Takahiro, Kawasaki, Shoji, Shimabukuro, Shun, Elserafy, Hatem, Masaharu, Fukuyama, Ejiri, Akira, Taiichi, Shikama, Yoneda, Nao, Yoneda, Ryota, Kariya, Tsuyoshi, Takase, Yuichi, Murakami , Sadayoshi, Bertelli, Nicola, Ono, Masayuki
Publikováno v:
Plasma Physics and Controlled Fusion. 63(10)
Noninductive plasma current start-up using 2nd harmonic electron cyclotron resonance heating (ECRH) with oblique radio frequency (RF) injection is demonstrated in a Q-shu University experiment with steady-state spherical tokamak. A strong transition
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=jairo_______::a6bed571e77e0a7c502cdb7117b28b55
https://repo.qst.go.jp/records/85237
https://repo.qst.go.jp/records/85237
Autor:
Atsushi Fukuyama, Shin Kubo, Takahiro Nagata, Yuichi Takase, M. Sakaguchi, Hiroshi Idei, K. Mishra, Makoto Hasegawa, Akira Ejiri, Masaharu Fukuyama, M. Ono, Yoshihiko Nagashima, Satoru Kobayashi, A. Higashijima, Toru Ii Tsujimura, Shinichiro Kojima, Katsumasa Nakamura, Osamu Watanabe, Tsuyoshi Imai, Kengoh Kuroda, Naoki Matsumoto, Tsuyoshi Kariya, S. Shimabukoro, Takumi Onchi, Kazuaki Hanada, Miu Yunoki, Sadayoshi Murakami
Publikováno v:
Fusion Engineering and Design. 146:1149-1152
New polarizer and launcher systems on a 28-GHz electron-cyclotron (EC) heating and current drive (HCD) system have been developed for non-inductive second-harmonic EC-plasma-current ramp-up in the QUEST spherical tokamak. A launcher system with two q
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::09da8de6f5b2753da4ff9e470337fb7c
https://doi.org/10.1016/j.fusengdes.2019.02.027
https://doi.org/10.1016/j.fusengdes.2019.02.027
Publikováno v:
World Journal of Engineering and Technology. :141-157
The advanced oxidation of 2,4-dinitrophenol (DNP), 2,5-DNP, and 3,4-DNP in aqueous solution has been investigated using a multi-gas, dielectric barrier discharge. Dielectric barrier discharge was operated in the aqueous solution and gas boundary. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9586486c6a5b48612a44dd9235b11350
https://doi.org/10.4236/wjet.2019.71010
https://doi.org/10.4236/wjet.2019.71010
Autor:
Hatem Elserafy, Nicola Bertelli, Shinichiro Kojima, M. Ono, Takumi Onchi, Kazuaki Hanada, Hiroshi Idei
Publikováno v:
THE 6TH INTERNATIONAL CONFERENCE ON BIOLOGICAL SCIENCE ICBS 2019: “Biodiversity as a Cornerstone for Embracing Future Humanity”.
A grid-based ECH ST/Tokamak start-up model is being developed where plasma parameters, generated plasma currents, and resulting poloidal magnetic fields are evolved from the vacuum fields. Initially, the current generated is purely pressure driven si
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::107d2767c17f6534ee7dd470323db179
https://doi.org/10.1063/5.0013966
https://doi.org/10.1063/5.0013966
Autor:
Shun Shimabukuro, Ryuya Ikezoe, Yoshihiko Nagashima, Takahiro Nagata, Hatem Elserafy, Nicola Bertelli, Shinichiro Kojima, Masaharu Fukuyama, Hiroshi Idei, Nao Yoneda, Masayuki Ono, Sadayoshi Murakami, Taiichi Shikama, Akira Ejiri, Shoji Kawasaki, Aki Higashijima, Kazuo Nakamura, Takumi Onchi, Kazuaki Hanada, Tsuyoshi Kariya, Yuichi Takase, Makoto Hasegawa, Ryota Yoneda, Kengoh Kuroda
Publikováno v:
Plasma Physics and Controlled Fusion. 63:105002
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af1bed652f293ad09b68de9bf7537846
https://doi.org/10.1088/1361-6587/ac1838
https://doi.org/10.1088/1361-6587/ac1838
Publikováno v:
Plasma and Fusion Research. 16:1406070-1406070
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::89b420d1bc5f20d8faa275695f003b91
https://doi.org/10.1585/pfr.16.1406070
https://doi.org/10.1585/pfr.16.1406070