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: Double-blind Author’s information were removed from the papers before be forwarded to the reviewers. And the authors only got the comments of papers without reviewers’ information. • Number of submissions received: 230 • Number of submissions sent for review: 210 • Number of submissions accepted: 120 • Acceptance Rate (Number of Submissions Accepted / Number of Submissions Received X 100): Approximately 52% • Average number of reviews per paper: 6 • Total number of reviewers involved: 1268 • Any additional info on review process: After basic reviews by editorial assistant, 210 papers were sent for peer reviews, 1268 reviewers involved in the process. and review process for each paper took around 1 month. The decision to accept or reject was based on the suggestions of reviewers. If differences of opinion occurred between reviewers, the editor-in-chief weighed all comments and arrived at a balanced decision based on all comments, or a second round of peer review was initiated. • Contact person for queries: Ms. Jiajia Mo info@icmeie.com