Quarterly. Four times a year.

No, you can not. 

You can go to the "sign-in" menu, click "I forget my password", and change it.

If you entered your email correctly during registration and have checked your Spam section of the email, and you are sure you have not received an email, contact your publication expert and report the email problem.

The only way is to submit an article to the journal through the journal website, and articles submitted via the journal email will not be included in the review process.

Click here.

No.

The review's length depends on the article's topic, the number of articles being reviewed, and the reviewers, and it will take at least two months.