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. MPM [Internet]. 2023 Apr. 23 [cited 2026 Mar. 15];(26):61-70. Available from: https://journals.nmetau.edu.ua/index.php/mpm/article/view/1888