Browsing by Author "Sakhno, T. V."
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Item Assessment of the danger of using ultraviolet lamps in electrical systems(2024) Semenov, A. O.; Popov, S. V.; Yakhin, S. V.; Yeleussinov, B.; Sakhno, T. V.; Семенов, Анатолій Олексійович; Попов, Станіслав Вячеславович; Яхін, Сергій Валерійович; Сахно, Тамара ВікторівнаTo determine the photobiological safety of UV lamps, the following measurements were carried out: spectral irradiance, total actinic irradiance in the wavelength range of 200-400 nm, and irradiance in the UVA range (320-400 nm). These parameters were measured using the optical radiation system OST-300. The photobiological safety of LUF 40-1, LE 15 lamps and their radiation risk group are established in accordance with EN 62471. The levels of UV radiation generated by LE 15 low pressure discharge lamps at a distance of 0.25 m belong to the high risk group (GR3), and LUF 40-1 - in the group of insignificant risk (GR1). Calculations and recommendations on safe radiation doses when using lamps in electrotechnical systems of photobiological influence are given.Item Bactericidal Disinfection of Activated Carbon from Aerobic Microorganisms, Yeasts and Molds(2022-02) Semenov, A. O. ; Sakhno, T. V.; Hmelnitska, Y. V.; Semenova, N.; Семенов, Анатолій Олексійович; Сахно, Тамара Вікторівна; Хмельницька, Євгенія ВікторівнаItem Combined method of UV treatment and ozonation during water disinfection in swimming pools(2021-11) Semenov, A. O. ; Vyzhva, S.; Sakhno, T. V.; Semenova, N.; Семенов, Анатолій Олексійович; Сахно, Тамара ВікторівнаItem Disinfection of Swimming Pool Water by UV Irradiation and Ozonation(2022-02) Semenov, A. O. ; Sakhno, T. V.; Семенов, Анатолій Олексійович; Сахно, Тамара ВікторівнаItem Disinfection of water contaminated with E.coli by using combination of electrolysis, photochemical treatment and ultrasonic: Role of hydroxyl radical formation and generation of singlet oxygen(2022-08) Barashkov, N. N.; Irgibayeva, I.; Sakhno, T. V.; Semenov, A. O. ; Aldongarov, Anuar; Сахно, Тамара Вікторівна; Семенов, Анатолій ОлексійовичItem Effect of UV-C radiation on basic indices of growth process of winter wheat (Triticum aestivum L.) seeds in pre-sowing treatment(2020) Semenov, A. O. ; Korotkova, I. V. ; Sakhno, T. V. ; Marenych, M. M. ; Hanhur, V. V. ; Liashenko, V. V. ; Kaminsky, V.; Семенов, Анатолій Олексійович; Короткова, Ірина Валентинівна; Сахно, Тамара Вікторівна; Маренич, Микола Миколайович; Гангур, Володимир Васильович; Ляшенко, Віктор ВасильовичItem Efficiency of seeds' germination in pre-sowing irradiation by UV-light of different spectral composition(2021-08) Marenych, M. M.; Semenov, A. O. ; Sakhno, T. V.; Barashkov, N. N.; Маренич, Микола Миколайович; Семенов, Анатолій Олексійович; Сахно, Тамара ВікторівнаItem Formation of the Quality Indicators of Hemp (Cannabis sativa L.) Seeds Sown under Organic Growing Technology(2023) Pylypchenko, A. V.; Marenych, M. M.; Hanhur, V. V.; Semenov, A. O.; Sakhno, T. V.; Пилипченко, Андрій Васильович; Маренич, Микола Миколайович; Гангур, Володимир Васильович; Семенов, Анатолій Олексійович; Сахно, Тамара ВікторівнаThe oil content of hemp seeds is controlled by the genotype and in the conducted studies did not depend on the growing technology; however, this factor had a synergistic effect with others. The protein content of hemp seeds during the years of research did not depend on weather conditions. Like other quality indicators, it had a slight variation, which indicates the significant role of the genetic characteristics of the varieties. On average, over the years of research, the protein content of the variants grown according to conventional technology was 25.2%, and according to transitional technology, it was 0.03% higher, which was within the limits of statistical error. The organic technology ensured the protein content at the level of 25.3%, and the use of the BioStymix-Niva microbial biodegrader - biodestructor contributed to the further growth of the indicator to 25.4%. The oil content of hemp seeds is not limited by other important characteristics, such as the yield of the hemp stems or the fiber content. Only the Glyana variety showed inverse correlations with plant height, hemp stems and seed productivity, they were of medium strength (r = -0.60 – -0.43). In the Zolotoniski 15 variety, only one inverse relationship was recorded, i.e. plant height (r = -0.57). No correlation was established between protein content and oil content in seeds. Correlations may change depending on other factors of cultivation, including weather conditions, elements of technology, etc., but the evaluation of varieties for cultivation according to these characteristics can significantly increase the efficiency of the production of cannabis products.Item Influence of UV Radiation on Physical And Biological Properties of Rapeseed In Pre-Sowing Treatment(2021-02) Semenov, A. O. ; Sakhno, T. V.; Semenova, K.; Семенов, Анатолій Олексійович; Сахно, Тамара ВікторівнаItem Photobiological safety of lamps and lamp systems in agriculture(2021-06) Semenov, A. O. ; Sakhno, T. V.; Sakhno, Yu.; Семенов, Анатолій Олексійович; Сахно, Тамара ВікторівнаItem Pre-sowing treatment of vetch hairy seeds, viсia villosa using ultraviolet irradiation(2021-07) Semenov, A. O. ; Sakhno, T. V.; Hordieieva, O. F.; Sakhno, Yu.; Семенов, Анатолій Олексійович; Сахно, Тамара Вікторівна; Гордєєва, Олена ФедорівнаItem Spectral manifestations of aggregates structure of heteroaromatic molecules at low temperatures(Journal of Luminescence, 2000) Barashkov, N. N.; Korotkova, I. V.; Sakhno, T. V.; Короткова, Ірина Валентинівна; Сахно, Тамара ВікторівнаThe results of investigation of temperature in#uence on spectral-luminescence properties of ethanol solution of N,N-dibutyl-3,8-diazapyran-5,10-dione (DPD) in an interval of temperatures of 300}77 K and concentrations of 1.6.10~3-8.0.10~6 mol/l are discussed. The room-temperature absorption and #uorescence spectra of DPD remained constant in a broad interval of concentration. The lowering of temperature of a solution to 148 K leads to the reduction of the long wavelength band and the formation of two maxima (at 374 and 377.5 nm). It was found that their intensities’ ratio depend on concentration as well as on the method of freezing the solution. The low-temperature fuorescence spectra are short-wave shifted at 35 cm~1. The spectral modi"cations of rigid ethanol solutions of DPD were attributed to the formation of the associated forms of molecules due to van der Waals forces. Absorption spectra analysed at di!erent cooling rates revealed a ‘sandwicha structure of associates at a fast rate of freezing and ‘foota structure (angle 903) at a slow rate of cooling. The distance between the associated molecules of DPD was estimated to be about 11 A. The nature of spectral modi"cations due to associations of DPD molecules is discussedItem Structure of poly(di-n-hexylsilane) in nanoporous materials(Сhemical Physics, 2010) Korotkova, I. V.; Sakhno, T. V.; Drobit‘ko, I.K.; Sakhno, Yu.; Ostapenko, N.; Короткова, Ірина Валентинівна; Сахно, Тамара ВікторівнаIn this work the effects of solvent polarity and conformation changing on the electronic characteristics of poly(di-n-hexylsilane) incorporated in the nanoporous materials are calculated. The dependence of energy levels of electronic-excited states of investigated compounds is analyzed as a function of the Si–Si–Si–Si twist angle and length of Si–Si and Si–C bonds. The possibility of complex formation between silicon atom of polymer and oxygen ions of nanoporous materials is shown.Item THE EFFECT OF PRE-SOWING TREATMENT OF WINTER SOFT WHEAT SEEDS WITH UV-C RADIATION ON BIOLOGICAL PROCESSES(2020) Korotkova, I. V.; Marenych, M. M. ; Hanhur, V. V. ; Sakhno, T. V.; Semenov, A. O. ; Короткова, Ірина Валентинівна; Маренич, Микола Миколайович; Гангур, Володимир Васильович; Сахно, Тамара Вікторівна; Семенов, Анатолій Олексійович