Funding for this research was provided by:
National Natural Science Foundation of China (61403388)
National Natural Science Foundation of China (61473236)
Natural science fund for colleges and universities in Jiangsu Province (17KJD520010)
Suzhou Science and Technology Program (SYG201712)
Suzhou Science and Technology Program (SZS201613)
Article History
Received: 10 August 2017
Accepted: 30 January 2018
First Online: 27 February 2018
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