Author(s): |
Yi Li, Shijiazhuang Institute of Railway Technology, Shijiazhuang, Hebei, China, 050000 Ming Yan, Polytechnic College of Hebei University of Science & Technology, Shijiazhuang, Hebei, China, 050000 Yuequn Xu, Shijiazhuang Institute of Railway Technology, Shijiazhuang, Hebei, China, 050000 |