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Tokiwa, Tetsuya*; Aoyagi, Kazuhei; Fujita, Tomoo
Rock Mechanics and Rock Engineering; From the Past to the Future (EUROCK 2016), p.901 - 906, 2016/07
Nagashima, Yoshihiko*; Hoshino, Katsumichi; Ejiri, Akira*; Shinohara, Koji; Takase, Yuichi*; Tsuzuki, Kazuhiro; Uehara, Kazuya; Kawashima, Hisato; Ogawa, Hiroaki; Ido, Takeshi*; et al.
Physical Review Letters, 95(9), p.095002_1 - 095002_4, 2005/08
Times Cited Count：101 Percentile：92.51(Physics, Multidisciplinary)By a reciprocating electrostatic probe, two types of low frequency coherent electrostatic modes (about1kHz and 10-15kHz) are found,for the first time, in the edge region of ohmically heated plasmas in the JFT-2M tokamak. These modes exists in the last closed surface. The higher frequency mode has features of the geodesic acoustic mode (GAM), though the low frequency mode is not identified yet. A bispectral analysis revealed that significant nonlinear couplings (parametric modulation) between these coherent fluctuations and broadband background turbulent potential fluctuations occur. In the other words, the GAM and the back ground turbulence are modulated by the newly found low frequency electrostatic mode (further, the GAM modulates the background turbulence, also) for the first time. The newly found low frequency mode (frequency about 1kHz) is supposed to contribute to the turbulent diffusion nonlinearly.
Konovalov, S. V.; Mikhailovskii, A. B.*; Tsypin, V. S.*; Galv
o, R. M. 0.*; Nascimento, I. C.*
Plasma Physics Reports, 29(9), p.779 - 784, 2003/09
Times Cited Count：2 Percentile：6.11(Physics, Fluids & Plasmas)The problem of drift stabilization of internal resistive-wall modes (RWMs) in tokamaks is theoretically investigated. The basic assumption of our model is that these modes are unstable in the absence of a conducting wall and stable in the presence of a close-fitting ideally conducting wall, when drift effects are neglected. Stability of the internal RWMs, was estimated for several existing tokamaks contributing to the ITER data base, namely, AUG (ASDEX-Upgrade), DIII-D, JET, TFTR and JT-60U, as well as for the projected ITER-FEAT. It is concluded that although drift effects do not stabilize the internal RWMs in current devices, they should be effective for suppressing these modes in reactor-grade tokamaks.
*; Yamagiwa, Mitsuru
Canadian Journal of Physics, 75(9), p.599 - 604, 1997/09
no abstracts in English
J.Y.Kim*; Kishimoto, Yasuaki; Wakatani, Masahiro*; Tajima, Toshiki*
Physics of Plasmas, 3(10), p.3689 - 3695, 1996/10
Times Cited Count：52 Percentile：82.07(Physics, Fluids & Plasmas)no abstracts in English
Kishimoto, Yasuaki; Tajima, Toshiki*; W.Horton*; LeBrun, M. J.*; J.Y.Kim*
Physics of Plasmas, 3(4), p.1289 - 1307, 1996/04
Times Cited Count：79 Percentile：89.74(Physics, Fluids & Plasmas)no abstracts in English
Onuki, Akira;
Int. J. Multiph. Flow, 22(6), p.1143 - 1154, 1996/00
Times Cited Count：41 Percentile：83.45(Mechanics)no abstracts in English
Hibiki, Takashi*; Mishima, Kaichiro*; Yoneda, Kenji*; Fujine, Shigenori*; Kanda, Keiji*; Nishihara, Hideaki*; Tsuruno, Akira; Matsubayashi, Masahito
Journal of Nuclear Science and Technology, 30(6), p.516 - 523, 1993/06
no abstracts in English
Osakabe, Masahiro; Koizumi, Yasuo; Tasaka, Kanji
Journal of Nuclear Science and Technology, 21(11), p.882 - 884, 1984/00
Times Cited Count：15 Percentile：91.37(Nuclear Science & Technology)no abstracts in English
-driven microscopic drift-tearing mode; *
Journal of the Physical Society of Japan, 51(5), p.1639 - 1643, 1982/00
Times Cited Count：0 Percentile：0.01(Physics, Multidisciplinary)no abstracts in English
*;
Nuclear Fusion, 21(1), p.3 - 12, 1981/00
Times Cited Count：6 Percentile：30.17(Physics, Fluids & Plasmas)no abstracts in English
; *
JAERI-M 8975, 21 Pages, 1980/07
no abstracts in English
; ; *
Journal of the Physical Society of Japan, 48(1), p.258 - 263, 1980/00
Times Cited Count：7 Percentile：55.55(Physics, Multidisciplinary)no abstracts in English
