1. School
of Energy Science and Engineering, Henan Polytechnic University, 2001 Century Avenue, Jiaozuo, Henan 454-003, China
2. Underground Resources Innovation Network, NPO, Higashi-ku, Sapporo 007-0847, Japan
3. Graduate
School of Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-ku, Sapporo, 060-8628, Japan