Ma, P.
Su, R. K. L.
Feng, W. J.
Funding for this research was provided by:
National Natural Science Foundation of China (11572358)
National Natural Science Foundation of China (10772123)
National Natural Science Foundation of China (11072160)
Training Program for Leading Talent in University Innovative Research Team in Hebei Province (LJRC006)
Article History
Received: 15 January 2016
Accepted: 9 March 2016
First Online: 22 March 2016