00654naa#a2200193#i#450# EN\\bibl\103103 20250927174508.6 3034-4689 20250807b2025####ek#y0engy0150####ca RU EFFICIENCY OF FRACTIONATION OF FINELY DISPERSED BULK MATERIAL IN A MULTI-VORTEX CLASSIFIER WITH CHANGING DESIGN PARAMETERS Journal article Kazan Kazan National Research Technological University 2025 5 с. Journal article local Prec M. A. Zinurov Vadim Eduardovich Dmitriev Andrey Vladimirovich Vdovina V. A. vestniktu.ru