1. School of Safety Science and EngineeringXi'an University of Science and Technology (XUST) Xi'an 710054 People's Republic of China
2. Shaanxi Key Laboratory of Prevention and Control of Coal FireXUST Xi'an 710054 People's Republic of China
3. Graduate School of Engineering Science and Technology, College of EngineeringNational Yunlin University of Science and Technology Yunlin 64002 Taiwan, ROC