Affiliation: | 1. School of Electrical Engineering and Automation, Anhui University, Hefei 230039, China 2. School of Mechanical Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China 3. School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China |