TY JOUR TI JUSTIFICATION OF THE TYPE OF CONVEYOR BELT DRIVE USED FOR LOADING CARS KW conveyor KW drive KW analysis KW wagons KW mechanism KW productivity JO Transport engineering AU Polyakov, P.A. AU Panchuk, M.S. AU Lagutina, A.A. AU Ashurkova, S.N. PY 2025 IS 2025 PB Bryansk State Technical University