1. National University of Defence Technology,College of Intelligence Science and Technolog,Changsha,China,156975
2. National University of Defence Technology,College of Intelligence Science and Technolog,Changsha,China
3. Tongji Universityn,National Maglev Transportation Engineering R & D Center,Shanghai,China,115499
4. National University of Defence Technology,College of Intelligence Science and Technolog,Changsha,China,130053