Liu, Hao
Li, Wei
Liu, Yunsong
Zhang, Xiao
Zhou, Yongsheng
Funding for this research was provided by:
the National Natural Science Foundation of China (81170937)
the Program for New Century Excellent Talents in University from Ministry of Education (NCET-11-0026)
Article History
Received: 21 May 2015
Revised: 20 August 2015
Accepted: 1 October 2015
First Online: 16 October 2015