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Документ Application of neural network regulator in cascade systems of regulation(2013) Klimenko, Julia; Baliuta, SerhiiThe purpose of research is scientific substantiation of the possibility and expediency of using of neural regulator in cascade systems. The object of research is cascade ACS. Multiplanimetric automatic control systems are used to improve the quality of regulation processes. Researches were performed for the most common class of cascade ACS - cascade-connected and also were performed simulations of neural controller. Methods of research included the use of advanced software on the basis of the package MatLab. Results of the research - comparative evaluation of cascade-connected ACS with and without the use of neural regulator.Документ Intensification of Surfactant Synthesis in Rhodococcus erythropolis EK-1 Cultivated on Hexadecane(2010) Pirog, Tatiana; Klimenko, Julia; Shevchuk, TetianaActivity of key enzymes of n-alkane metabolism was determined in cells of Rhodococcus erythropolis EK-1, a surfactant producer grown on n hexadecane. Potassium cations were found to inhibit alkane hydroxylase and NADP+-dependent aldehyde dehydrogenase, while sodium cations were found to activate these enzymes. Decreased potassium concentration (to 1 mM), increased sodium concentration (to 35 mM), and addition of 36 μmol/l Fe(II), required for alkane hydroxylase activity, resulted in increased activity of the enzymes of n-hexadecane metabolism and in a fourfold increase of surfactant synthesis. A 1.5–1.7-fold increase in surfactant concentration after addition of 0.2% fumarate (gluconeogenesis precursor) and 0.1% citrate (lipid synthesis regulator) to the medium with hexadecane results from enhanced synthesis of trehalose mycolates, as evidenced by a 3–5- fold increase in phosphoenolpyruvate synthetase and trehalose phosphate synthase, respectively.В клетках штамма-продуцента поверхностно-активных веществ (ПАВ) Rhodococcus erythropolis ЭК-1, выращенного на н-гексадекане, определена активность ключевых ферментов метаболизма н-алканов.