1. College of Automation and Electronic Engineering, Qingdao University of Science and Technology, Qingdao, China
2. WEIGAO Group Co., LTD, WeiHai, China
3. School of Stomatology, Qingdao University, Qingdao, China
4. Luzhong Institute of Safety, Environmental Protection Engineering & Materials, Qingdao University of Science and Technology, Zibo, China