2023. MODELING OF THE FRICTION PAIR OF A BELT CONVEYOR AS AN ELEMENT OF THE TECHNOLOGICAL PROCESS OF ORE MASS TRANSPORTATION IN THE PDE TOOLBOX APPLICATION OF THE MATLAB MATHEMATICAL PACKAGE. Modern Problems of Metallurgy. 26 (Apr. 2023), 61–70. DOI:https://doi.org/10.34185/1991-7848.2023.01.06.