1. Center for Reliability Sciences and Technologies and the Department of Electronic Engineering, College of Engineering, Chang Gung University, Taoyuan City, Taiwan
2. Department of Electronic Engineering, College of Engineering, and the Department of Radiation Oncology, Chang Gung Memorial Hospital, Center for Reliability Sciences and Technologies, Chang Gung University, Taoyuan City, Taiwan
3. Center for Reliability Sciences and Technologies, Chang Gung University, Taoyuan City, Taiwan