Conference Proceedings: All accepted papers after proper registration and presentation, will be published into E3S Web of Conferences, which is indexed by Google Scholar, CAS, DOAJ, CPCI (Web of Science), EBSCO, ProQuest, Ei-Compendex, Scopus. Conference Programme: December 02, 2021: Conference Registration, Conference Committees Workshop December 03, 2021: Keynote speeches, Parallel Sessions December 04, 2021: Parallel Sessions Contact us: Ms. Vera Lee Email: This email address is being protected from spambots. You need JavaScript enabled to view it. Tel: +86-18123342942