Cheng, Lifang
Wei, Xiukun
Cao, Hongjun
Funding for this research was provided by:
the Natural Science Foundation of China (11171017)
the State Key Laboratory of Rail Traffic Control and Safety (RCS2017K002)
Article History
Received: 12 December 2017
Accepted: 1 May 2018
First Online: 19 May 2018
Compliance with ethical standards
:
: The authors declare that there are no conflicts of interest regarding the publication of this manuscript.