Lastly, let us express our sincere thanks to many people to whom we have owed
much in experiments and discussions, in particular to the students at Kyoto Institute
of Technology and the coworkers at NISSAN ARK CO.
Umezu, Kyoto, Japan
Representing the three authors
Yokosuka, Kanagawa, Japan
Shinzo Kohjiya
Matsugasaki, Kyoto, Japan
Atsushi Kato
April 2019
YukoI keda
Preface
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