Funding for this research was provided by:
National Natural Science Foundation of China (61671008)
Natural Science Foundation of Guangxi Province (2015GXNSFDA139003)
Key Laboratory of Automatic Detecting Technology and Instruments, Guangxi Province (YQ14115)
Key Laboratory of Automatic Detecting Technology and Instruments, Guangxi Province (YQ17103)
Article History
Received: 28 October 2017
Accepted: 16 January 2018
First Online: 29 January 2018