1．Which format of file should I use to submit?

（1） The file format of submission varies in different journals. You are suggested to read the Instruction for authors before submission, and prepare your masnuscript as it required.

（2）The size of file must be kept less then 20M.

（3） We suggest you include the figures in your manuscript, which is convenient for reviewers.

2．How does the system protect my privacy information?

As a software developer, we do NOT collect your information. The copyright of all information in the system belongs to the editorial office.

As a professional publisher, the editorial office usually has a comprehensive privacy policy to protect your privacy information.

3．About the redundance registration

Our system marks the author/reviewer by e-mail. So, for a single e-mail, can be registered only one times.