1. Associate Professor, College of Mining Engineering, Taiyuan Univ. of Technology, Taiyuan 030024, PR China (corresponding author). ORCID: .
2. Master’s Candidate, College of Mining Engineering, Taiyuan Univ. of Technology, Taiyuan 030024, PR China.
3. Senior Engineer, Mineral Technology Center, Shanxi Province Coal Geology 114 Prospecting Institue, Changzhi 046011, PR China.