11.12.2023 у. at 14:00 o'clock Yokubov Оybek Мahmujon ogli was defended on the topic: «Development of an effective technology for converter slag processing in a Vanyukov furnace», in the specialty: 05.02.01 - "Materials science in mechanical engineering. Foundry production. Heat treatment and pressure treatment of metals" (technical sciences) for the degree of Doctor of Philosophy in technical sciences (РhD).