TY JOUR TI THEORETICAL ANALYSIS OF THE FLATTENER GRAIN PROCESS AND GRAIN MIXTURE ON A ROLLER-TAPE FLATTENER KW grain mixture KW grain flattening KW gripping conditions KW grain deformation KW roll-belt flattening JO Vestnik of Omsk SAU AU RUDAKOV, D.S. AU RUDAKOV, D.S. PY 2025 IS 60 PB FSBEI HE Omsk SAU