1. School
of Mechanical and Automotive Engineering, South China University of Technology, Wushan Road 381, Guangzhou, Guangdong 510641, P. R. China
2. State
Key Laboratory of Fire Science, University of Science and Technology of China, Jinzhai Road 96, Hefei, Anhui 230027, P. R. China
3. School
of Instrument Science and Optoelectronics Engineering, Hefei University of Technology, Hefei, Anhui 230009, P. R. China