Grain movement between the cylinders of a semi-automatic rotary dryer during heating Vladimir Nikolaev, Irina Troyanovskaya, Vladimir Vanzha, Leisan Akhtyamova and Maryam Mirzoeva E3S Web Conf., 548 (2024) 06019 Published online: 12 July 2024 DOI: 10.1051/e3sconf/202454806019