Increasing oil absorption in bearings as a result of ultrasonic exposure to ultrafine particlesSadokat Siddikova, Shamilidin Sirojidinov, Nasiba Bakhriddinova, Mokhira Zaripova and Malokhat JuraevaE3S Web Conf., 471 (2024) 05021DOI: https://doi.org/10.1051/e3sconf/202447105021