Funding for this research was provided by:
National Natural Science Foundation of China (11471166)
National Natural Science Foundation of China (11426134)
Natrual Science Foundation of Jingsu Province (BK20141443)
Priority Academic Program Development of Jiangsu Higher Education Institutions
AFSOR (FA9550-09-1-0520)
NIH (5R01GM96195-2)
NCSU RISF
Article History
Received: 30 September 2014
Revised: 15 June 2015
Accepted: 26 July 2015
First Online: 4 August 2015