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 □ Conference submission management system: Al Scholar System □ Number of submissions received: 266 □ Number of submissions sent for review: 235 □ Number of submissions accepted: 173 □ Acceptance Rate (Number of Submissions Accepted / Number of Submissions Received X 100): 65% □ Average number of reviews per paper: 2 □ Total number of reviewers involved: 50 □ Any additional info on review process : □ Contact person for queries: shiquanzh@yeah.net