1. College of Automation and Electronics Engineering; Qingdao University of Science and Technology; Qingdao 266042 PRC
2. Department of Chemical and Materials Engineering; University of Alberta; Edmonton AB Canada T6G 2G6
3. Department of Electronic Engineering; Huafan University; New Taipei City Taiwan
4. School of Information Engineering; Zhejiang University of Technology; Hangzhou 310023 PRC