Funding for this research was provided by:
National Natural Science Foundation of China (61601254)
the KC Wong Magna Fund of Ningbo University, China
ORCID
Zhi-hua LU: http://orcid.org/0000-0003-3123-4961
Publication History
Received: 2018-04-07
Accepted: 2018-09-24
Crosschecked: 2018-09-25
Content Type
: Article
Copyright
: © Zhejiang University and Springer-Verlag GmbH Germany, part of Springer Nature 2018