Peer review declaration

All papers published in this volume of Journal of Physics: Conference Series have been peer reviewed through processes administered by the Editors. Reviews were conducted by expert referees to the professional and scientific standards expected of a proceedings journal published by IOP Publishing. • Type of peer review: Single-blind / Double-blind / Triple-blind / Open / Other (please describe): Open • Conference submission management system: EIConferences@126.com • Number of submissions received: 200 • Number of submissions sent for review: 175 • Number of submissions accepted:153 • Acceptance Rate (Number of Submissions Accepted / Number of Submissions Received X 100): 76.5 • Average number of reviews per paper: 2 • Total number of reviewers involved: 5 groups with a total of 25 reviewers (each group consists of a lead reviewer and 4 reviewers, each reviewer reviews about 14 papers on average) • Any additional info on review process: Authors will submit their papers through the official email address of the conference, and the deadline for submission is March 15, 2021. The person in charge of the mailbox of the conference committee will sort out all the submissions, divide them into groups and distribute them equally to 5 review groups. The review groups will return comments one after another within 2 weeks, and the person in charge of the conference committee wills feedback the comments to the authors. Each paper was reviewed by two reviewers who gave their own comments: Papers with good quality and themes will be accepted directly, and the authors can register for the next stage of the conference; for papers with medium quality, revision suggestions will be given, and then the review groups will decide whether to accept them or not after the authors revise and return; For papers with very poor quality, the review groups will give rejection suggestions. All involved reviewers are recognized specialists in fields covered by the Conference. The final decision regarding acceptance/revision/rejection was based on reviews received from the reviewers. If the two reviewers cannot agree on a recommendation, the final at the sole discretion of the lead reviewer. The authors themselves do not have any decision on whether their papers are accepted or not. The final approved papers will be registered until April 5, 2021. The conference committee will send the invitation to the accepted authors and submit the information of the authors’ papers to the publishers. Contact person for queries: Name: Xiangtao Wang Affiliation:Shaanxi higher education alliance Email: lidueiconferences@126.com