Funding for this research was provided by:
Natural Science Foundation of Shanxi Province (201801D121141)
Joint Research Fund for Overseas Chinese Scholars and Scholars in Hong Kong and Macao (61828601)
Article History
First Online: 20 November 2019
Compliance with ethical standards
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: Lipo Wang is Guest Editor of SI: ICNC-FSKD 2017. Other authors have no conflict of interest.
: This research does not involve human nor animals.
: I consent the journal to review the paper. I inform that the manuscript has not been submitted to other journal for simultaneous consideration. The manuscript has not been published previously. The study is not split up into several parts to increase the quantity of submissions and submitted to various journals or to one journal over time. No data have been fabricated or manipulated (including images) to support my conclusions. No data, text, or theories by others are presented as if they were of my own. Proper acknowledgements to other works are provided, and I use no material that is copyrighted. I consent to submit the paper, and I have contributed sufficiently to the scientific work and I am responsible and accountable for the results.