Affiliation: | aSouthwestern Institute of Physics, P.O. Box 432, Chengdu 610041, Sichuan, China bResearch Institute for Applied Mechanics, Kyushu University, 6-1 Kasugakoen, Kasuga, Fukuoka 816-8580, Japan cNational Institute for Fusion Science, Toki, Gifu 509-52, Japan |