Funding for this research was provided by:
National Natural Science Foundation of China (61474034)
the National Basic Research Program of China (2012CB934104)
the Natural Science Foundation of Heilongjiang Province of China (F201418)
the Fundamental Research Funds for the Central Universities, China (HIT.NSRIF.2014040, HIT.NSRIF.2013040)
ORCID
Rui WENG: http://orcid.org/0000-0003-3830-7385
Publication History
Received: 2016-01-21
Accepted: 2016-05-01
Crosschecked: 2017-09-25
Content Type
: Article
Copyright
: © Zhejiang University and Springer-Verlag GmbH Germany 2017