Yang, Yuan-Yuan
Xie, Shu-Cui
Zhang, Jian-Zhong
Funding for this research was provided by:
National Natural Science Foundation of China (61402275;61402015;61273311)
Natural Science Foundation of Shaanxi Province (2015JM6263;2016JM6069)
Fundamental Research Funds for the Central Universities (GK20142004)
Article History
Received: 22 December 2016
Accepted: 7 April 2017
First Online: 26 April 2017