Funding for this research was provided by:
the Basic Public Research Program of Zhejiang Province, China (LGF18F030001)
the Open Research Project of the State Key Laboratory of Industrial Control Technology, Zhejiang University, China (ICT1800414)
Article History
Received: 3 May 2018
Accepted: 30 July 2018
First Online: 2 September 2019
Compliance with ethics guidelines
: Qi WANG, Zhen FAN, Wei-hua SHENG, Sen-lin ZHANG, and Mei-qin LIU declare that they have no conflict of interest.