Funding for this research was provided by:
National Natural Science Foundation of China (61772087)
National Natural Science Foundation of China (61303043)
Double First-class International Cooperation and Development Scientic Research Project of Changsha University of Science and Technology (2018IC23)
the National Key Research and Development Program (2017YFE0125300)
National Natural Science Foundation of China-Guangdong Joint Fund (U1801264)
the Open fund of State Key Laboratory of Acoustics (SKLA201901)
the Outstanding Youth Project of Hunan Province Education Department (18B162)
Article History
Received: 11 January 2019
Accepted: 30 July 2019
First Online: 7 August 2019
Compliance with ethical standards
:
: We declare that we have no conflict of interest.