This work was supported by the Scientific Research Fund of Hunan Provincial Education Department under 17A029 and 18A440, the National Science Foundation of China under 11671128, the Science Research Project of Hengyang Normal University under 16D01, the Applicationoriented Special Disciplines, and the Double First-Class University Project of Hunan Province under Xiangjiaotong [2018] 469.
This work was supported by the Scientific Research Fund of Hunan Provincial Education Department under 17A029 and 18A440, the National Science Foundation of China under 11671128, the Science Research Project of Hengyang Normal University under 16D01, the Application-oriented Special Disciplines, and the Double First-Class University Project of Hunan Province under Xiangjiaotong [2018] 469.