Automatic selection of a subset size at vector fields construction

An algorithm for selection of the size of a correlation kernel at displacement vector field construction by the method of digital image correlation has been proposed. The algorithm has been tested on simulated and experimental optical images having different texture. The influence of the correlation kernel size and image texture on nose immunity at determining displacements has been studied. It is shown that the proposed algorithm allows to find this size providing the minimum error when determination of displacements and estimation of deformation

Automatic selection of a subset size at vector fields construction

An algorithm for selection of the size of a correlation kernel at displacement vector field construction by the method of digital image correlation has been proposed. The algorithm has been tested on simulated and experimental optical images having different texture. The influence of the correlation kernel size and image texture on nose immunity at determining displacements has been studied. It is shown that the proposed algorithm allows to find this size providing the minimum error when determination of displacements and estimation of deformation

Study of the mechanism of action of p-chloromercuribenzoate on endonuclease from the bacterium Serratia marcescens

The mechanism of action of p-chloromercuribenzoate (PCMB) on Serratia marcescens nuclease was investigated. The analysis showed that PCMB forms complexes with DNA. Binding of C7H5O2Hg+ to DNA changes the secondary structure of the DNA. These changes alter the enzymatic activity of S. marcescens nuclease, which was previously found to be sensitive to the secondary structure of the substrates. The nuclease activity was either suppressed or stimulated in the presence of PCMB depending on the C7H5O2Hg+ to nucleotide equivalent ratio. Binding of C7H5O2Hg+ to DNA did not form an abortive enzyme-substrate complex. Binding of Mg2+ to the C7H5O2Hg-DNA complex caused appropriate changes in secondary structure of the substrate. Since Mg2+ and C7H5O2Hg+, though differing in the type of metal cation, are similar in their mechanisms of influence on enzymatic activity of S. marcescens nuclease, the identity of other metal-containing effectors in their mechanism of action on Serratia marcescens nuclease is assumed

Study of the mechanism of action of p-chloromercuribenzoate on endonuclease from the bacterium Serratia marcescens

The mechanism of action of p-chloromercuribenzoate (PCMB) on Serratia marcescens nuclease was investigated. The analysis showed that PCMB forms complexes with DNA. Binding of C7H5O2Hg+ to DNA changes the secondary structure of the DNA. These changes alter the enzymatic activity of S. marcescens nuclease, which was previously found to be sensitive to the secondary structure of the substrates. The nuclease activity was either suppressed or stimulated in the presence of PCMB depending on the C7H5O2Hg+ to nucleotide equivalent ratio. Binding of C7H5O2Hg+ to DNA did not form an abortive enzyme-substrate complex. Binding of Mg2+ to the C7H5O2Hg-DNA complex caused appropriate changes in secondary structure of the substrate. Since Mg2+and C7H5O2Hg+, though differing in the type of metal cation, are similar in their mechanisms of influence on enzymatic activity of S. marcescens nuclease, the identity of other metal-containing effectors in their mechanism of action on Serratia marcescens nuclease is assumed

Comparative analysis of household consumers electroreceivers modes

Данная статья предлагает сравнительный анализ различных режимов работы бытовых электроприемников, на основе измерений, сделанных в реальной квартире. Измерение Показателей качества электроэнергии (ПКЭ) и снятие графиков нагрузки осуществлялось с помощью прибора регистратора-анализатора ПКЭ ChauvinArnoux СА 8335+. Ежедневные нагрузки и ежедневные затраты энергии рассчитаны и отображены графически с почасовой дискретностью. Выбраны наиболее эффективные способы регулирования потребления энергоресурсов и сокращения финансовых затрат на электроэнергию.The paper deals with the comparative analysis of various operating modes of household consumers electroreceivers on the basis of measurements in real apartment. Measurement of Unified Power Quality Index (UPQI) and reading load curves were accomplished by means of the UPQI logger Chauvin Arnoux СА 8335+. Daily load and daily cost of energy are calculated and shown graphically with hourly discretization. The most effective ways of regulation the energy consumption and reduction of financial expenses on the electric power are chosen

Research of household consumers electroreceivers modes

Ежемесячно потребители в квартирах платят за электроприборы в соответствии с потребляемой ими энергией. Данная статья представляет собой описание первых шагов, направленных на развитие и оптимизацию режимов распространенных бытовых устройств, и, как результат, и на финансовые расходы потребителей. Прежде всего, электрические приборы были разделены на 3 группы в соответствии с их режимами работы. Холодильник как представитель группы приборов резко переменной нагрузки, был выбран для основных измерений. Измерение Показателей качества электроэнергии (ПКЭ) и снятие графиков нагрузки осуществлялось с помощью прибора регистратора-анализатора ПКЭ Chauvin Arnoux СА 8335+. Анализ кривых нагрузки и графика расхода средств позволяет рассчитать финансовые затраты в процентах. Эти исследования могут стать основой для дальнейшего исследования в области уменьшения и оптимизации расходов.In modern world each of us has a range of electric appliances, which simplified our daily life, in our house or flat. But what is more all of us are obligated to pay for work of all devices, which means for power they consume. This paper represented first steps aimed to develop and optimize modes of common household devices and as a result our financial expenses. At first all electric appliances were shared to 3 groups according with their modes. Then refrigerator, as a representor of abruptly variable load group, was chosen for main measurements. Measurement of Unified Power Quality Index (UPQI) and reading load curves were accomplished by means of the UPQI logger ChauvinArnouxСА 8335+. Provided load curves and flow chart of funds allow to calculate financial expenses in percent. This research formulates base for following investigation in field of consume and expense optimization

Communication of uneasiness with sociability level at teenagers

In this article the research of communication of uneasiness with sociability at teenagers is made.В данной статье описаны результаты исследования связи тревожности с уровнем общительности у старших школьников

Analysis of the reasons of development of iron deficiency anemia in patients with CHD

The article presents the results of an analysis of the causes of anemia in patients with coronary heart disease taking antiplatelet agents and anticoagulants. According to the results of routine research methods, it was found that 55.7% of patients have a gastrointestinal tract as a possible source of bleeding.В статье представлены результаты анализа причин анемии у пациентов с ишемической болезнью сердца, принимающих антиагреганты и антикоагулянты. По результатам рутинных методов исследования установлено, что 55,7% пациентов имеют в качестве возможного источника кровотечения желудочно-кишечный тракт

COMPARISON OF SORPTION CHARACTERISTICS OF VARIOUS SORBENTS FOR PRELIMINARY CONCENTRATION OF STRONTIUM FROM NATURAL WATERS

In this work, a number of experiments were carried out on the preliminary concentration of strontium from natural water, on 5 types of sorbents. Based on the results, the best sorbents were selected, with which the experiments were continued.Исследование выполнено при финансовой поддержке РФФИ и Правительства Свердловской области в рамках научного проекта № 20-43-660055

Studing the Possibility of Application of Inorganic Sorbents in Radiochemical Analysis of 90Sr

Радиационный контроль стронция-90 является важным для решения природоохранных и экологических задач. Анализ литературных источников показывает нам, что методики по определению стронция-90 длительные, достаточно сложные и многостадийные, не исключены погрешности определения и заниженные результаты. Необходимо подобрать оптимальные условия определения данного изотопа, упростить анализ и ускорить, при этом снизить предел обнаружения до 0,1 Бк/л. В результате работы были изучены 5 сорбентов для предварительного концентрирования стронция. На основании сравнения сорбционных характеристик выбраны лучшие сорбенты, исследовали влияние рН на степень сорбции стронция. Для селективного выделения стронция-90 на тонкослойном сорбенте MnO2-ТАЦ изучили влияние рН и возможность отделения цезия-137.Radiation monitoring of strontium-90 is important for solving nature conservation and ecological problems. The analysis of literature sources shows us that the methods for determining strontium-90 are long, rather complicated and multi-stage, determination errors and underestimated results are not excluded. It is necessary to select the optimal conditions for the determination of this isotope, simplify the analysis and accelerate, while reducing the detection limit to 0.1 Bq/L. As a result of the work, 5 sorbents for preliminary concentration of strontium were studied. Based on a comparison of the sorption characteristics, the best sorbents were selected, and the effect of pH on the degree of strontium sorption was investigated. For the selective isolation of strontium-90 on a thin-layer MnO2-CTA sorbent, the effect of pH and the possibility of separating cesium-137 were studied.Исследование выполнено при финансовой поддержке РФФИ и Правительства Свердловской области в рамках проекта № 20-43-660055