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: Open (Several experts checked the article and provided grades. The organizers calculated the arithmetic mean of the article grades and gave the article a final grade). • Conference submission management system: standard • Number of submissions received: 9 • Number of submissions sent for review: 6 • Number of submissions accepted: 6 • Acceptance Rate (Number of Submissions Accepted / Number of Submissions Received X 100): 66,7% • Average number of reviews per paper: 2,5 • Total number of reviewers involved: 8 • Any additional info on review process: Several experts checked the article and provided grades. The organizers calculated the arithmetic mean of the article grades and gave the article a final grade Contact person for queries(please include: name, affiliation, institutional email address) Shkaraputa Alexander P. (A. P. Shkaraputa) Perm State University, Faculty of Mechanics and Mathematics Address: Russia, Perm city, 614990, Genkelya str. 7, office. 123a Tel: +79526585835, +79129873458 E-mail: shkaraputa@psu.ru