○Takatoshi Ito¹, Keisuke Yokoyama¹ (1. Tohoku University)

○Atsushi Sainoki¹, Chiaki Hirohama¹ (1. Kumamoto University)

○Daisuke FUKUDA¹, Sang-Ho CHO², Jun-ichi KODAMA¹, Yoshiaki FUJII¹ (1. Hokkaido University, 2. Chonbuk National University)

○Kuniyuki Miyazaki¹, Tetsuji Ohno¹, Hirokazu Karasawa¹, Hiroyuki Imaizumi¹, Hiroshi Tanaka², Yosuke Miyashita³ (1. National Institute of Advanced Industrial Science and Technology, 2. K. Maikai Co., Ltd., 3. Mitsubishi Materials Corporation)

○Shuji Tamamura¹, Takuma Murakami¹, Noritaka Aramaki¹, Akio Ueno¹, Satoshi Tamazawa¹, Alam A.K.M. Badrul¹, Shofa Rijalul Haq², Shinji Yamaguchi³, Hideo Aoyama³, Toshifumi Igarashi², Katsuhiko Kaneko¹ (1. Horonobe Research Institute for the Subsurface Environment, 2. Hokkaido University, 3. Mitsubishi Materials)

○Hiroyuki Matsumoto¹, Kagemi Uchida¹, Tutomu Sato², Akira Sato³, Jun Aizawa⁴, Hiroshi Suenaga⁵ (1. KUSHIRO COAL MINE CO., LTD., 2. HOKKAIDO UNIVERSITY, 3. KUMAMOTO UNIVERSITY, 4. HUKUOKA UNIVERSITY, 5. CENTRAL RESEARCH INSTITUTE OF ELECTRIC POWER INDUSTRY)