1. School of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao, China
2. State Key Laboratory of Mining Disaster Prevention and Control Co-founded by Shandong Province and the Ministry of Science and Technology, Shandong University of Science and Technology, Qingdao, China
3. Shuyang County Market Supervision Administration, Xinhe Branch, Suqian, China
4. Linyi Vocational University of Science and Technology, Linyi, China