Author(s): |
Xiaowen Yuan, Shijiazhuang Institute of Railway Tehnology, Shijiazhuang, China, 050041 Zhitong Li, Shijiazhuang Institute of Railway Tehnology, Shijiazhuang, China, 050041 Fen Liu, Hebei University of Science and Tehnology, Shijiazhuang, China, 050041 |