1. State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, 300401 Tianjin, China
2. Tianjin Key Laboratory of Bio-electromagnetic and Neural Engineering, Hebei University of Technology, 300132 Tianjin, China
3. Hebei Key Laboratory of Bioelectromagnetics and Neuroengineering, School of Health Sciences and Biomedical Engineering, Hebei University of Technology, 300132 Tianjin, China
4. Nanotechnology and Integrated Bioengineering Centre, Jordanstown Campus, University of Ulster, Newtownabbey BT37 0QB, United Kingdom