Funding for this research was provided by:
Natural Science Foundation of Jiangsu Province (BK20160897)
Scientific Research Foundation of Nanjing University of Posts and Telecommunications (NY214151, NY214054)
Excellent Young Talents Fund Program of Higher Education Institutions of Anhui Province (14KJA510002)
Article History
Received: 15 August 2018
Accepted: 6 November 2018
First Online: 20 November 2018
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