Home page. The fund number is the number of the research project fund provided by the author when submitting the paper. When writing a paper, the author can fill in the number of the research project fund according to his department or unit, which can be a national fund or a ministerial fund. The number of the ministerial fund is put on the home page for readers to check. If the author is not in one unit, but in multiple units, you can insert the fund certificate in front of the home page and mark the fund number one by one.