Acknowledgements

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Acknowledgements
First of all, I would like to express my sincerest gratitude to my forever teacher,
Professor Masahiro Wakatani. He had given me many interesting subjects in spiteof my strange way of expressing my own interests. He has very wide knowledge
including plasma physics and fusion technology, and accurate physical intuition. He
had often pointed out the incompleteness of my works and helped me to improve myunderstandings on each problem. Moreover, he had been continuously encouraging
and guiding me as a great teacher. I admire his gentle, kind, and patient personality.
Without his careful and proper guidance, I could not have completed this work.
The next person whom I would like to thank is Professor Zensho Yoshida in theUniversity of Tokyo. He had been patient of my doing PhD work for two and a halfyears, in spite of the fact that I was hired as a research associate of his laboratory.
Even before that, he had visited Kyoto University several times for giving some
lectures as a visiting professor, and his talk attracted me very much. Many parts ofthis thesis also owe to his profound and interesting understandings of the World.
Professor Hideki Zushi in Kyushu University is the ﬁrst person who had lead me
into the domain of plasma physics at the time of entrance examination for graduate
school of nuclear engineering. Without his kind invitation to plasma physics, I had
not known this very profound and interesting subject. He had guided me in mymaster course on the data analysis of Heliotron-E experiment.
Professor Vazha Berezhiani in Georgian Academy of Science was the visiting
professor in the University of Tokyo for a year. He taught me how widely and howinterestingly the plasma physics is related to other domains. I was surprised at
his manifold knowledge, which aﬀects me to love plasma physics much more thanbefore. Moreover, he taught me that the easiest way to learn foreign language is tojust try to communicate with foreigners.
Professors Swadesh Mahajan and Mikhail Pekker in the University of Texas, Professor Katsuji Ichiguchi in National Institute for Fusion Science, Professor Benjamin
Carreras in Oak Ridge National Laboratory, Doctors Francesco Volponi, Shigeo Kondoh, Akira Yoshioka, and Makoto Hirota are coauthors of my papers published inscientiﬁc journals. I have learned a lot of things from them, and they have beenvery kind and patient to allow my slow progress.
Professors Y. Nakamura and S. Hamaguchi in Kyoto University, Professors Y.
Ogawa, N. Shatashvili, H. Himura, S. Kado and J. Morikawa in the University ofTokyo have been very kindly teaching me a lot of interesting topics in plasma physics
through seminars.

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Acknowledgements

Professor M. Yagi in Kyushu University, Professors H. Sugama, K. Watanabe, M.
Yokoyama and A. Takayama in National Institute for Fusion Science, and Doctors
Y. Ishii, T. Matsumoto, Y. Idomura, and M. Furukawa in Japan Atomic Energy
Research Institute are the great honorable seniors of Wakatani’s laboratory. I feelthat they have done excellent works and I will never quit trying to do my best in
my forthcoming days as a researcher in order to follow them.
Doctors S. Tokuda, Y. Kishimoto, M. Kikuchi, and S. Takeji in Japan Atomic
Energy Research Institute, Professors S. Kida, N. Nakajima, K. Yamazaki, K. Ida
and H. Yamada in National Institute for Fusion Science, Professor A. Ishida inNiigata University, Professors J. Van Dam, P. Valanju, and F. Waelbroeck in theUniversity of Texas, Professor R. Dewar in Australian National University, Professors E. Hameiri and H. Strauss in New York University, and Doctor K. Noguchi inLos Alamos National Laboratory are the researchers I have met in the conferenceor my visit to their institutions. Although I have also met other many scientists
in the world, I would like to express my gratitude especially to them whom I havediscussed and learned a lot of things related to this thesis.
Finally, I would like to express my gratitude to all members at Graduate Schoolof Energy Science and Institute of Advanced Energy, Kyoto University, those at
Graduate School of Frontier Sciences, the University of Tokyo, and all my friends
and parents who supported me during my long term studies.