Peer review declaration

Preface 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) Double-blind □ Conference submission management system: Al Scholar Submission System □ Number of submissions received: 189 □ Number of submissions sent for review: 167 □ Number of submissions accepted: 101 □ Acceptance Rate (Number of Submissions Accepted / Number of Submissions Received X 100): 53.4% □ Average number of reviews per paper: 2 □ Total number of reviewers involved: 28 □ Any additional info on review process: □ Contact person for queries: ykxing@cqu.edu.cn