Full-text pdfs can be downloaded without login as of August 1st
All full-text pdfs of our journals can be freely downloaded without login as of August 1st, 2020.
We hope it would be more convenient for readers to access paper contents and find new research results.
Clicking "pdf" button on the journal top pages or "Full text" button on abstract pages will start download (or display on browser).
As for your account, you may keep it. In case of any comments, we are welcome to hear from you.