Affiliation: | 1. College of Power Engineering, Chongqing University,Chongqing 400044, China;Postdoctoral Station, Chongqing University, Chongqing 400044, China;2. Institute of Modem Physics, Chinese Academy of Sciences, Lanzhou 730000, China;3. College of Power Engineering, Chongqing University,Chongqing 400044, China |