1. Key Laboratory of Gas and Fire Control for Coal Mines, School of Safety Engineering, China University of Mining and Technology, Xuzhou, China
2. Security department, Shanxi Xinjing Mining and Coal Industry Co. Ltd, Yangquan, China
3. School of Environmental and Chemical Engineering, Jiangsu Ocean University, Lianyungang, China
4. School of Resource, Environment and Safety Engineering, Hunan University of Science and Technology, Xiangtan, China
5. Security department, Safety and Technology Center of Sichuan Coal Mine Safety Supervision Bureau, Chengdu, China
6. Security department, CCTEG Shenyang Research Institute, Shenyang, China