1. School of History, Culture and Tourism, Weifang University, No. 5071, Dongfeng East St., Kuiwen, Weifang 261061, China
2. School of Innovation and Entrepreneurship, Chongqing University of Posts and Telecommunications, No. 2 Chongwen Rd., Nan'an, Chongqing 400065, China (Corresponding author), e-mail: qinwei@cqupt.edu.cn, https://orcid.org/0000-0001-5440-1932
3. Weifang Maritime Bureau, No. 6789 Minzhu St., Hanting, Weifang 261061, China