36 research outputs found

    The method for high order modes parameters estimation in periodical structures

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    The High Order Modes (HOM) parameters are calculated in traveling wave mode at one structure period for the reference set of the phase advance values, with real 3D geometry in the wide frequency range. For the structure with arbitrary length HOM parameters are interpolated basing on periodicity properties. The method resolution doesn’t depends on the number of periods in the structure and allows reliably identify interesting and important HOM parameters for long structures and in high frequency region.ВЧ-характеристики высших мод колебаний (ВМК) рассчитаны в режиме бегущей волны в широком диапазоне частот на одном периоде структуры в трехмерном приближении для опорного набора набегов фазы поля на период. Для структуры с произвольным числом периодов ВМК параметры интерполируются исходя из свойств периодичности. Разрешение метода не зависит от числа периодов в структуре и позволяет выявить важные особенности ВМК в длинных структурах и диапазоне высоких частот.ВЧ-характеристики вищих мод коливань (ВМК) розраховані в режимі бігучої хвилі в широкому діапазоні частот на одному періоді структури в тривимірному наближенні для опорного набору набігів фази поля на період. Для структури з довільним числом періодів ВМК параметри інтерполіруються виходячи з властивостей періодичності. Дозвіл методу не залежить від числа періодів в структурі і дозволяє виявити важливі особливості ВМК у довгих структурах і діапазоні високих частот

    Influence of Water Factor on the Incidence (XI, XIV, XIV) Classes of Diseases Among Adult Population in the Rural Taxons

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    Purpose of research: correlation analysis influence of some indicators of drinking water quality (total hardness, dry residue, Cl-, SO4-, salts of Ca, Mg, F, Al, Fe, Zn, Cu, Mn, nitrogen ammonia, nitrites, pH, nitrates, oxidation) to the incidence (XI, XIV, XIV) classes of diseases among adult population in the rural taxons of Dnipropetrovsk region for 2008 - 2013 years. Materials and Methods. Statistical processing and analysis results of research carried out by the medical statistical methods. Evaluation of the relationship between variables was carried out by coefficients of Spearman's rank correlation (r). Research methods: sanitary-toxicological, physical-chemical (for definition indicators of potable water quality from decentralized water supply sources); medico - statistical (mathematical processing obtained quantitative indicators, methods of variation statis­tics). Results of research and Discussion. In the local water sources from some rural taxons was shown, that salt arthropathy among adults was weakly correlated with all inorganic substances, except: pH + F + oxidability (r=0.01-0.28, p < 0.05). A similar trend was observed between salt arthropathy, which was correlated with all inorganic substances, except nitrate + oxidability (r= 0.03, p < 0.05). Weak correlation had been shown between a combined effect in water pH + F + nitrates and incidence of the stones of kidney and ureter diseases at the adult population (r=0.03, p <0.05)

    Mathematical software for the synthesis of domestic catalyst of ethylene acetoxylation process

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    We have created a mathematical model of the catalyst carrier of the process of ethylene acetoxylation for synthesis of vinyl acetate take into account the physical parameters of the catalyst carrier and chemical composition of the catalyst. We have solved the following problems: the problem of optimization of the physical parameters of the catalyst carrier; the problem of multi-objective constrained optimization of chemical composition of the catalyst. This optimization allows maximizing the selectivity and the activity of the catalyst and minimizing the content of gold and palladium. These problems have been solved through nonlinear programming methods

    RELATIONSHIP OF THE CONDITION OF THE MYOCARDIUM WITH INFRINGEMENTS THE CALCIUM AND PHOSPHORUS METABOLISM INPATIENTS WITH DIABETIC NEPHROPATHY

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    Objective: To establish the possible relationship between changes in cardiac hemodynamics and im-paired phosphate-calcium metabolism and content FGF 23. Patients and Methods: 260 people with diabetic nephropathy, 64 people with hypertension and 20 healthy individu-als were surveyed. Studied the state of the myocardium and cardiac hemodynamics, blood levels of calcium, phosphorus and FGF 23. Results and conclusions: between the state of myocardium, cardiac hemodynamics and content FGF23, phos-phorus and calcium are closely interrelated, which is likely mediated through specific receptor apparatus of myocardium and through immunoinflammatory mechanisms. However, the specific mechanisms of action system FGF23 / phosphorus-calcium exchange for anatomical and functional myocardial changes require further investigation

    HETEROTOPIC SPLENIC TISSUE AUTOTRANSPLANTATION AFTER SPLENECTOMY

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