Ai Bo*, Zhong Zhang-Dui, Zhu Gang, Xu Rong-Tao and Ding Jian-Wen
State Key Lab. of Rail Traffic Control and Safety (Beijing Jiaotong University, Beijing, 100044, China)
Received: October 12, 2007; Accepted: September 21, 2007; Revised: October 25, 2007
Abstract: The latest patents on the...