Affiliation: | 1. Luoyang Electronic Equipment Test Center, Luoyang 471003, China;2. College of Information System and Management, Changsha 410073, China;1. School of Mathematics, Southeast University, Nanjing 210096, China;2. School of Science, Jiangsu University of Science and Technology, Zhenjiang 212003, China;3. College of Mathematics Science, Nanjing Normal University, Nanjing 210097, China |