Zobrazeno 1 - 10
of 47
pro vyhledávání: '"ISHIZAWA, Akihiro"'
Autor:
Widmer, Fabien, Poli, Emanuele, Mishchenko, Alexey, Ishizawa, Akihiro, Bottino, Alberto, Hayward-Schneider, Thomas
We investigate tearing modes (TM) driven by current density gradient in collisionless tokamak plasmas by using the electromagnetic gyrokinetic simulation code ORB5. We elucidate the TM width by simulations for flat profiles, as the absence of backgro
Externí odkaz:
http://arxiv.org/abs/2410.11498
Autor:
Maeyama, Shinya, Watanabe, Tomo-Hiko, Nakata, Motoki, Nunami, Masanori, Asahi, Yuuichi, Ishizawa, Akihiro
Publikováno v:
In Journal of Computational Physics 1 February 2025 522
Akademický článek
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Autor:
Ishizawa, Akihiro, Hattori, Yuji
Using EDQNM approximation, it is shown that the magnetic stretching term is responsible for turning the small-scale turbulent structures into the large coherent magnetic structures in the 2-D MHD turbulence.
Comment: 2 pages, latex, no figures,
Comment: 2 pages, latex, no figures,
Externí odkaz:
http://arxiv.org/abs/chao-dyn/9810036
Autor:
Maeyama, Shinya *, Watanabe, Tomohiko, Idomura, Yasuhiro, Nakata, Motoki, Nunami, Masanori, Ishizawa, Akihiro
Publikováno v:
In Parallel Computing November 2015 49:1-12
Autor:
Chatani, Tomoki, Shikama, Taiichi, Ueno, Yohei, Kado, Shinichiro, Kawazome, Hayato, Minami, Takashi, Matoike, Ryota, Murakumo, Minato, Kobayashi, Shinji, Ohshima, Shinsuke, Iwata, Akihiro, Oishi, Tetsutaro, Ishizawa, Akihiro, Nakamura, Yuji, Okada, Hiroyuki, Konoshima, Shigeru, Mizuuchi, Tohru, Nagasaki, Kazunobu, Hasuo, Masahiro
Publikováno v:
Scientific Reports. 12
For plasma spectroscopy, Stokes spectropolarimetry is used as a method to spatially invert the viewing-chord-integrated spectrum on the basis of the correspondence between the given magnetic field profile along the viewing chord and the Zeeman effect
Autor:
Weir Gavin M., Nagasaki Kazunobu, Zhu Jinxiang, Luo Maoyuan, Okada Hiroyuki, Minami Takashi, Kado Shinichiro, Kobayashi Shinji, Yamamoto Satoshi, Ohshima Shinsuke, Konoshima Shigeru, Nakamura Yuji, Ishizawa Akihiro, Lu Xiang-xun, Zang Linge, Marushchenko Nikolai, Yoshimura Yasuo, Mizuuchi Tohru
Publikováno v:
EPJ Web of Conferences, Vol 203, p 03013 (2019)
A radial correlation ECE radiometer diagnostic has been developed for electron temperature fluctuation measurements in the helical-axis heliotron device, Heliotron J. The radiometer consists of two heterodyne detection systems. One system scans the f
Externí odkaz:
https://doaj.org/article/f700cfa6d70d4bd498f22d85832b49ca
Akademický článek
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Autor:
Yamamoto, Satoshi, Nagasaki, Kazunobu, Nagaoka, Kenichi, Varela, Jacobo, Cappa, Alvaro, Ascasibar, Enrique, Castejon, Francisco, Fontdecaba, Josep, Manuel, García, Ida, Katsumi, Ishizawa, Akihiro, Isobe, Mitsutaka, Kobayashi, Shinji, Liniers, Macarena, Daniel, Lopez-Bruna, Marushchenko, Nikolai, Medina, Francisco, Melnikov, Alexander, Minami, Takashi, Mizuuchi, Tohru, Nakamura, Yuji, Ochando, Maria, Ogawa, Kunihiro, Ohshima, Shinsuke, Okada, Hiroyuki, Osakabe, Masaki, Sanders, Mike, Velasco, Jose, Weir, Gavin, Narushima, Mikiro, Gonzalez, Antonio
Publikováno v:
Nuclear Fusion. 60(6)
The effect of electron cyclotron heating (ECH) and current drive (ECCD) on energetic-particle (EP)-driven magnetohydrodynamic (MHD) modes is studied in the helical devices LHD, TJ-II and Heliotron J. We demonstrate that EP-driven MHD modes, including