Funding for this research was provided by:
Guang Dong Provincial Natural fund project (2015A030308017, 2016A030310300)
Guangdong Science and Technology Key Project (2015B010131009)
Ministry of Education Science and Technology Development Center (2017A11001)
Guangdong University Engineering Technology Research Center (2016GCZX004)
National Natural Science Foundation of China (71871069, 71401045)
the Ministry of Education in China Project of Humanities and Social Sciences (18YJAZH137)
the Guangdong Provincial Natural Fund Project (2017A030313394)
major scientific research projects of Guangdong (2017WTSCX021)
the planning project of the 13th Five-Year in Philosophy and Social Sciences of Guangzhou (2018GZGJ48)
Article History
Received: 16 March 2019
Accepted: 21 September 2019
First Online: 16 October 2019
Compliance with ethical standards
:
: The authors declare that there is no conflict of interests regarding the publication of this paper.