Funding for this research was provided by:
National Natural Science Foundation of China (51705051)
Basic Natural Science and Frontier Technology Research Program of the Chongqing Municipal Science and Technology Commission (cstc2017jcyjA0221)
Science and Technology Research Project of the Chongqing Education Committee (KJ1705135)
Open Foundation of the State Key Laboratory of Fluid Power and Mechatronic Systems (GZKF-201808)
Postdoctoral Research Foundation of China (2018M643420)
Chongqing Postdoctoral Science Special Foundation (XmT2018002)
Article History
Received: 25 June 2018
Accepted: 16 December 2019
First Online: 1 January 2020
Compliance with ethical standards
:
: The author declares no conflict of interest.