Xi’an Polytechnic University - School of Science, Xi’an Polytechnic University - School of Science, Fiji National University (FNU) - Department of Physics, The Education University of Hong Kong - Department of Science and Environmental Studies, Xi’an Polytechnic University - School of Science, Xi’an Polytechnic University - School of Science, Xi’an Polytechnic University - School of Science, Xi’an Polytechnic University - School of Science, Xi’an Polytechnic University - School of Science, Xi'an Polytechnic University, affiliation not provided to SSRN, affiliation not provided to SSRN, Fiji National University (FNU) - Department of Physics and affiliation not provided to SSRN

Xi'an Polytechnic University, Xi’an Polytechnic University - School of Science, Fiji National University (FNU) - Department of Physics, Xi'an Polytechnic University, Xi'an Polytechnic University, The Education University of Hong Kong - Department of Science and Environmental Studies, Xi'an Polytechnic University, Beijing University of Technology and Xidian University