1. College of Electronic Information and Optical Engineering, Nankai University, Tianjin 300071, China
2. Department of Otorhinolaryngology, Head and Neck Surgery, the Second Hospital, Tianjin Medical University, Tianjin 300211, China
3. State Environmental Protection Key Laboratory of Odor Pollution Control, Tianjin Academy of Eco-environment Sciences, Tianjin 300191, China
4. Key Laboratory of Civil Aviation Thermal Hazards Prevention and Emergency Response, Civil Aviation University of China, Tianjin 300300, China