1. School of Electrical Engineering, Guangxi University, Nanning, Guangxi, China
2. Department of Electrical and Electronic Engineering, School of Electrical Engineering, Xi’an Jiaotong-Liverpool University, Suzhou, China
3. College of Environment and Ecology, Xiamen University, Xiamen, Fujian, China
4. Department of Technology Management, Faculty of Construction Management and Business, University Tun Hussein Onn Malaysia, Parit Raja, Johor, Malaysia