Ph.D. Qican Ran. His research interests include rock mechanics, fracture mechanics, and fractal characterization of crack networks, with emphasis on permeability evolution and gas migration in mining-induced fractured media. He has published several academic papers on stress–fracture–flow coupling, acoustic emission behavior, and fractal analysis of rock failure processes. He has been a CSC-sponsored joint Ph.D. researcher at the University of British Columbia. His work has contributed to advancing targeted gas drainage technologies in coal mining. He has received academic scholarships and research awards during his doctoral studies.