Duan, Shihong
Yu, Tianqing
He, Jie
Funding for this research was provided by:
National Natural Science Foundation of China (61304257, 61402033)
Natural Science Foundation of Beijing Municipality (4152036)
Fundamental Research Funds for the Central Universities (FRF-TP-15-026A)
Article History
Received: 24 May 2017
Accepted: 8 January 2018
First Online: 5 February 2018