%0 Journal Article %T Analysis and Selection of Geometric Parameters of a Hopper to Study the Process of Unloading of Bulk Materials %A Vorob'ev, A.A. %A Migrov, A.A. %K hopper, bulk materials, arch formation, loading and unloading devices, statistical analysis %J Proceedings of Petersburg Transport University %D 2022 %N 19 %P 7 %I FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"