On September 12 of this year at 11:00 a.m., the second seminar was held in the meeting hall of the scientific center. At the scientific seminar under the scientific council number DSc.30/30.11.2021T.141.01 under the joint-stock company “Cotton Industry Scientific Center” on the topic of “Improvement of machine-picked cotton raw material cleaner from large impurities” Khaidarov Adkham Faizullaevich 05.06.02 – “Technology of textile materials and the discussion of the dissertation work prepared by the Doctor of Philosophy (PhD) degree in technical sciences in the specialty “raw material preliminary processing” was held.