1. Marine Engineering Institute, Jimei University, Xiamen, P.R. China
2. Key Laboratory of Ship and Ocean Engineering, Jimei University, Xiamen, P.R. China
3. School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou, P.R. China
4. Fujian Provincial Key Laboratory of Terahertz Functional Devices and Intelligent Sensing, Fuzhou University, Fuzhou, P.R. China