Optimizing mash threshing quality through drum rotation frequency adjustment Khasan Eshankulov, Umida Imamova, Dilafruz Kenjabaeva, Kakhramon Eshkoraev, Alim Axmedov and Dilnoza Bobokulova E3S Web Conf., 627 (2025) 02014 Published online: 16 May 2025 DOI: 10.1051/e3sconf/202562702014