Wang, NianLiang http://orcid.org/0000-0003-1980-2268
Funding for this research was provided by:
Natural Science Basic Research Plan in Shaanxi Province of China (2012JM1018)
Shangluo Science Research plan (SK2014-01-08)
Science Research Project of Shaanxi Provincial Department of Education (16JM1265, 16JK1238)
Article History
Received: 1 April 2016
Revised: 21 September 2016
Accepted: 18 February 2017
First Online: 12 June 2018