○Marina Matsumoto¹, Shintaro Kanemaru¹, Yoshinari Baba¹, Kazuhiro Sugamoto¹ (1. University of Miyazaki)

○Kazuki Uda¹, Akihiro Yoshimura¹, Kensuke Mori², Vinas Dan², Yasunari Matsuno¹ (1. Chiba University Graduate School, 2. Hitachi Construction Machinery Co., Ltd.)

○sora Ushizaki¹, kanemaru Shintaro¹, kazuhiro Sugamoto¹, yoshinari Baba¹ (1. university of Miyazaki)

○Takehiko Gotoh¹, Kensho Hanai¹, Satoshi Nakai¹ (1. Hiroshima University)

○Riko Hamauchi¹, Shintaro Kanemaru¹, Yoshinari Baba¹, Kazuhiro Sugamoto¹ (1. University of Miyazaki)

○Chikara Takano¹, Kazunori Nakashima¹, Satoru Kawasaki¹, Hideki Aoyagi² (1. Hokkaido University, 2. University of Tsukuba)

○Daishi Miyakawa¹, Kiichi Yasunaga², Hitoshi Ohya², Kenichi Yamazaki³ (1. The University of Kitakyusyu graduate school, 2. The University of Kitakyusyu , 3. Maruya Corporation)

○Kazuya Matsumoto¹, Ryu Sakamoto¹, Hiroshi Katagiri², Mitsutoshi Jikei¹ (1. Akita University, 2. Yamagata University)

○Murai Takumi¹, Hironari Kubo¹ (1. Fukuoka Institute of Technology)

○Soichiro Inokuchi¹, Hitoshi Ohya¹, Eriko Tayaoka¹, Kenichi Yamazaki², Atsunori Tayaoka³ (1. THE UNIVERSITY OF KITAKYUSHU, 2. MARUYA CORPORATION, 3. National Institute of Technology, Kitakyushu College)

○Taro Kimura¹, Ken Higuchi¹, Yuki Toma², Ken Adachi¹, Atsushi Iizuka¹, Etsuro Shibata¹ (1. Tohoku University, 2. Tohoku Univeristy (presently at Mitsubishi Materials Corporation))

○Takao Ueda¹, Shigeki Koyanaka¹, Tatsuya Oki¹ (1. National Institute of Advanced Industrial Science and Technology)