1. Department of Electrical and Computer Engineering, Texas Tech University, Lubbock, Texas 79409, United States
2. Department of Computer Science, Texas Tech University, Lubbock, Texas 79409, United States
3. Department of Chemical Engineering, Texas Tech University, Lubbock, Texas 79409, United States
4. State Key Laboratory of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, Xi’an, Shaanxi Province 710049, China