There is no age limit for publishing papers in China. The thesis is my own research achievement. As long as it conforms to national policies and meets the publishing conditions of magazines and periodicals, it can be published.
Periodicals can generally be divided into informal periodicals and formal periodicals. Core journals refer to authoritative journals that can best reflect the academic level of a subject in a certain field, with a large amount of information and high utilization rate, and are widely valued.