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  • Authors: Oksana Georgiyevna Prikhod'ko;

    В статье рассматриваются современные подходы к оценке раннего речевого развития детей первых лет жизни. Специальное образование, Issue № 4 (52), Pages 95-105

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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ Institutional reposi...arrow_drop_down
    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
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      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ Institutional reposi...arrow_drop_down
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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: V. N. Brichkin; Viktor M. Sizyakov;

    The scientific justification and development of the method for industrial synthesis of complex aluminates of alkaline earth metals is an innovative solution that determined several directions in the development of technology for complex processing of nepheline raw materials. It ensures the production of high-quality metallurgical alumina, the effective utilization of nepheline sludge and production of new types of multipurpose by-products. The modern development of these technical solutions is associated with ensuring the energy efficiency of the synthesis of hydrafed calcium carboaluminates (HCCA) and increasing the level of purification of aluminate solutions. The conditions for synthesizing HCCA with the use of calcareous materials of natural and technogenic origin have been experimentally determined, which makes it possible to isolate the average particle diameter as one of the determining factors of this process. The effect of the turnover of the hydrogarnet sludge on the removal of kinetic limitations in the process of deep desalination of aluminous solutions is theoretically justified. The conditions of a two-stage dosage of HCCA are experimentally determined. It is shown that the optimum ratio of the amount of the reagent supplied in the first and second stages is about 3: 2. At the same time, the maximum degree of precipitation of silica provides the production of aluminate solutions with a silicon module at the level of 95,000, which is achieved by using a HCCA synthesized based on chemically precipitated calcium carbonate in the processing of wastes from the production of mineral fertilizers. Научное обоснование и разработка способа промышленного синтеза сложных алюминатов щелочно-земельных металлов представляет собой инновационное решение, определившее целый ряд направлений в развитии технологии комплексной переработки нефелинового сырья. Это обеспечивает получение высококачественного металлургического глинозема, эффективную утилизацию нефелинового шлама и выпуск новых видов попутной продукции широкого назначения. Современное развитие этих технических решений связано с обеспечением энергоэффективности синтеза гидрокарбоалюминатов кальция (ГКАК) и увеличением глубины очистки алюминатных растворов. Экспериментально определены условия синтеза ГКАК с использованием известковых материалов природного и техногенного происхождения, что позволяет выделить средний диаметр частиц в качестве одного из определяющих факторов этого процесса. Теоретически обосновано влияние оборота гидрогранатового шлама на снятие кинетических ограничений в процессе глубокого обескремнивания алюминатных растворов. Экспериментально определены условия двухстадийной дозировки ГКАК. Показано, что оптимальное соотношение количества реагента, подаваемого на первой и второй стадии, составляет около 3:2. При этом максимальная степень осаждения кремнезема обеспечивает получение алюминатных растворов с кремниевым модулем на уровне 95000, что достигается при использовании ГКАК, синтезированного на основе химически осажденного карбоната кальция при переработке отходов производства минеральных удобрений. №231(3) (2018)

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      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ Записки Горного инст...arrow_drop_down
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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: M. A. Zatsepin; Ya. N. Vykhodtsev; A. P. Gospodarikov;

    In the article, within the framework of the dynamic theory of elasticity, a mathematical model of the impact of seismic blast waves on rock mass is presented, including a working. The increase in the volume of mining operations in complex mining and geological conditions, taking into account the influence of the explosion energy, is closely connected with the analysis of the main parameters of the stress-strain state of the rock massif including a working. The latter leads to the need to determine the safe parameters of drilling and blasting operations that ensure the operational state of mining. The main danger in detonation of an explosive charge near an active working is a seismic explosive wave which characteristics are determined by the properties of soil and parameters of drilling and blasting operations. The determination of stress fields and displacement velocities in rock mass requires the use of a modern mathematical apparatus for its solution. For numerical solution of the given boundary value problem by the method of finite differences, an original calculation-difference scheme is constructed. The application of the splitting method for solving a two-dimensional boundary value problem is reduced to the solution of spatially one-dimensional differential equations. For the obtained numerical algorithm, an effective computational software has been developed. Numerical solutions of the model problem are given for the case when the shape of the working has a form of an ellipse. В статье в рамках динамической теории упругости представлена математическая модель воздействия сейсмовзрывных волн на массив горных пород, включающий выработку. Увеличение объемов добычи по-лезных ископаемых в сложных горно-геологических условиях с учетом влияния энергии взрыва тесно связано с анализом основных параметров напряженно-деформированного состояния массива горных пород, включающего выработку. Последнее приводит к необходимости определения безопасных параметров бу-ровзрывных работ, обеспечивающих эксплуатационное состояния горной выработки. Основную опасность при взрыве заряда взрывчатого вещества вблизи действующей выработки представляет сейсмовзрывная волна, характеристики которой определяются свойствами грунта и параметрами буровзрывных работ. Определение полей напряжений и скоростей смещений в массиве горных пород требует привлечения для своего решения современного математического аппарата. Для численного решения поставленной краевой задачи методом конечных разностей авторами построена оригинальная расчетно-разностная схема. Применение метода расщепления для решения двухмерной краевой задачи сводится к решению пространственно одномерных дифференциальных уравнений. Для полученного численного алгоритма разработана эффективная вычислительная программа. Приведены численные решения модельной задачи для случая, когда форма горной выработки представлена эллипсом. №4 (226) (2017)

    image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ Записки Горного инст...arrow_drop_down
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      image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ Записки Горного инст...arrow_drop_down
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  • Authors: Boris Evgenyevich Starichenko;

    Статья является первой из двух публикаций автора, посвященных вопросам и проблемам цифровизации отечественного образования. The article is the first of two publications by the author on issues and problems of digitalization of Russian education. Педагогическое образование в России, Issue № 3, Pages 49-58

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  • The main mechanisms of formation and suppression of sulfur oxides during combustion of solid fuels in the CFB and the main regime factors affecting the concentration of sulfur oxides during air combustion are considered. The features of the mechanisms of formation and suppression of sulfur oxide emissions during oxygen combustion, which are largely associated with a high partial pressure of carbon dioxide mixed with oxygen, are shown. A comparative analysis of the effect of capturing SOx and regime factors during the combustion of oxygen and CO2 in air and the environment has been performed. The most preferred mathematical models for calculating SOx emissions are given and the calculation results are compared with experimental data. Directions and approaches to further research are indicated, primarily in the direction of modeling under conditions of co-combustion of coal and biomass. It is shown that it is topical to conduct comprehensive studies of the processes of formation and suppression of harmful emissions from the co-combustion of coal and various types of biomass, especially when burning oxygen in an environment with CO2 recirculation. The main mechanisms of formation and suppression of sulfur oxides during combustion of solid fuels in the CFB and the main regime factors affecting the concentration of sulfur oxides during air combustion are considered. The features of the mechanisms of formation and suppression of sulfur oxide emissions during oxygen combustion, which are largely associated with a high partial pressure of carbon dioxide mixed with oxygen, are shown. A comparative analysis of the effect of capturing SO and regime factors during the combustion of oxygen and CO in air and the environment has been performed. The most preferred mathematical models for calculating SO emissions are given and the calculation results are compared with experimental data. Directions and approaches to further research are indicated, primarily in the direction of modeling under conditions of co-combustion of coal and biomass. It is shown that it is topical to conduct comprehensive studies of the processes of formation and suppression of harmful emissions from the co-combustion of coal and various types of biomass, especially when burning oxygen in an environment with COrecirculation. Бухаркина Т.В., Российский химико-технологический университет им. Д.И. Менделеева, Москва Рассмотрены основные механизмы образования и подавления оксидов серы при сжигании твёрдых топлив в ЦКС и основные режимные факторы, влияющие на концентрацию оксидов серы при воздушном сжигании. Показаны особенности механизмов образования и подавления выбросов оксидов серы при кислородном сжигании, которые во многом связаны с высоким парциальным давлением двуокиси углерода в смеси с кислородом. Выполнен сравнительный анализ влияния улавливания SO и режимных факторов при сжигании в воздушной среде и среде кислорода и СО. Приведены наиболее предпочтительные математические модели для расчёта выбросов SO и дано сравнение результатов расчёта с экспериментальными данными. Указаны направления и подходы к дальнейшим исследованиям, прежде всего в направлении моделирования в условиях совместного сжигания угля и биомассы. Показано, что актуальным является проведение комплексных исследований процессов образования и подавления вредных выбросов при совместном сжигании углей и различных видов биомассы, в особенности при сжигании в среде кислорода с рециркуляцией СО. №8(1057) (2019)

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    Authors: Shabanova A.R.; Tolstoy I.M.; Lebedev I.V.;

    The aim of this paper is to increase the flight safety of an unmanned aerial vehicle that monitors power lines under the negative influence of electromagnetic fields on the on-board equipment. This problem was solved with algorithms for photo- and video-imaging and determination of wire sag. The development of monitoring algorithms should overcome the limitations of the existing solutions. Particularly, various systems employ suboptimal routes of aerial vehicle, as well introduce nonuniversal constraints of flight zone. Besides, the considered approaches do not account for peculiarities of aerial imaging and for structural specifics of power line elements. This leads to poorer image processing performance and causes additional errors. To improve evaluation of power line characteristics, the algorithm of aerial imaging is proposed, which includes vehicle position adjustment relative to wire for two imaging settings. To ensure safe performance of onboard hardware, a calculation methodology for electromagnetic field distribution is presented, which allows determine the minimum distance between the wire and the vehicle. Experimental results, obtained in simulator, show 90.22% accuracy of the proposed method. The most important research outcomes consist in achieved refinement of aerial imaging in overhead power line monitoring, as well in automation of wire sag calculation based on image data. The scientific relevance of the research consists in potential improvement of fault-tolerance of power transmission networks and decrease of power losses because of early recognition of power line failures and due repair. Consequently, maintenance costs of overhead power line service can be optimized.

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  • Постановка задачи. Одной из главных причин потери несущей способности железобетонных конструкций считается нарушение сцепления между арматурой и бетоном. Вследствие этого возникает необходимость в изучении изменения величины сцепления арматурного стержня и бетона под различными воздействиями. Следует отметить, что в связи с внешними и технологическими воздействиями механические характеристики бетона подвержены изменению, что непосредственно оказывает влияние на величину сцепления. Результаты и выводы. С помощью искусственных нейронных сетей получена аналитическая модель, описывающая конечную прочность сцепления через средние значения касательных напряжений. В качестве объекта исследования выступает бетон различных классов прочности, армированный металлической и композитной арматурой. Установлено, что величина сцепления связана с прочностными характеристиками бетона и видом применяемой арматуры. Также разработана двухслойная нейронная сеть с обратным распространением сигнала, которая с высокой точность описывает величину сцепления арматуры с бетоном. Statement of the problem. One of the major reasons for the loss of bearing capacity of reinforced concrete structures is considered to be failure of coupling between the reinforcement and concrete. As a result, there is a need to study the change in the value of the coupling of the reinforcing bar and concrete under various influences. It should be noted that due to external and technological influences, the mechanical characteristics of concrete are subject to change, which directly affects the amount of adhesion. Results and conclusions. Using artificial neural networks the analytical model was obtained that describes the final adhesion strength by means of average tangential strains. Concrete of different strength types reinforced with metal and composite reinforcement is used for this study. Adhesion was found to be associated with concrete characteristics and reinforcement type. A two-layer reverse neural network was also developed that describes adhesion of reinforcement with concrete precisely. №2(54) (2019)

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  • Authors: Oksana Georgiyevna Prikhod'ko;

    В статье рассматриваются современные подходы к оценке раннего речевого развития детей первых лет жизни. Специальное образование, Issue № 4 (52), Pages 95-105

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  • image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
    Authors: V. N. Brichkin; Viktor M. Sizyakov;

    The scientific justification and development of the method for industrial synthesis of complex aluminates of alkaline earth metals is an innovative solution that determined several directions in the development of technology for complex processing of nepheline raw materials. It ensures the production of high-quality metallurgical alumina, the effective utilization of nepheline sludge and production of new types of multipurpose by-products. The modern development of these technical solutions is associated with ensuring the energy efficiency of the synthesis of hydrafed calcium carboaluminates (HCCA) and increasing the level of purification of aluminate solutions. The conditions for synthesizing HCCA with the use of calcareous materials of natural and technogenic origin have been experimentally determined, which makes it possible to isolate the average particle diameter as one of the determining factors of this process. The effect of the turnover of the hydrogarnet sludge on the removal of kinetic limitations in the process of deep desalination of aluminous solutions is theoretically justified. The conditions of a two-stage dosage of HCCA are experimentally determined. It is shown that the optimum ratio of the amount of the reagent supplied in the first and second stages is about 3: 2. At the same time, the maximum degree of precipitation of silica provides the production of aluminate solutions with a silicon module at the level of 95,000, which is achieved by using a HCCA synthesized based on chemically precipitated calcium carbonate in the processing of wastes from the production of mineral fertilizers. Научное обоснование и разработка способа промышленного синтеза сложных алюминатов щелочно-земельных металлов представляет собой инновационное решение, определившее целый ряд направлений в развитии технологии комплексной переработки нефелинового сырья. Это обеспечивает получение высококачественного металлургического глинозема, эффективную утилизацию нефелинового шлама и выпуск новых видов попутной продукции широкого назначения. Современное развитие этих технических решений связано с обеспечением энергоэффективности синтеза гидрокарбоалюминатов кальция (ГКАК) и увеличением глубины очистки алюминатных растворов. Экспериментально определены условия синтеза ГКАК с использованием известковых материалов природного и техногенного происхождения, что позволяет выделить средний диаметр частиц в качестве одного из определяющих факторов этого процесса. Теоретически обосновано влияние оборота гидрогранатового шлама на снятие кинетических ограничений в процессе глубокого обескремнивания алюминатных растворов. Экспериментально определены условия двухстадийной дозировки ГКАК. Показано, что оптимальное соотношение количества реагента, подаваемого на первой и второй стадии, составляет около 3:2. При этом максимальная степень осаждения кремнезема обеспечивает получение алюминатных растворов с кремниевым модулем на уровне 95000, что достигается при использовании ГКАК, синтезированного на основе химически осажденного карбоната кальция при переработке отходов производства минеральных удобрений. №231(3) (2018)

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    Authors: M. A. Zatsepin; Ya. N. Vykhodtsev; A. P. Gospodarikov;

    In the article, within the framework of the dynamic theory of elasticity, a mathematical model of the impact of seismic blast waves on rock mass is presented, including a working. The increase in the volume of mining operations in complex mining and geological conditions, taking into account the influence of the explosion energy, is closely connected with the analysis of the main parameters of the stress-strain state of the rock massif including a working. The latter leads to the need to determine the safe parameters of drilling and blasting operations that ensure the operational state of mining. The main danger in detonation of an explosive charge near an active working is a seismic explosive wave which characteristics are determined by the properties of soil and parameters of drilling and blasting operations. The determination of stress fields and displacement velocities in rock mass requires the use of a modern mathematical apparatus for its solution. For numerical solution of the given boundary value problem by the method of finite differences, an original calculation-difference scheme is constructed. The application of the splitting method for solving a two-dimensional boundary value problem is reduced to the solution of spatially one-dimensional differential equations. For the obtained numerical algorithm, an effective computational software has been developed. Numerical solutions of the model problem are given for the case when the shape of the working has a form of an ellipse. В статье в рамках динамической теории упругости представлена математическая модель воздействия сейсмовзрывных волн на массив горных пород, включающий выработку. Увеличение объемов добычи по-лезных ископаемых в сложных горно-геологических условиях с учетом влияния энергии взрыва тесно связано с анализом основных параметров напряженно-деформированного состояния массива горных пород, включающего выработку. Последнее приводит к необходимости определения безопасных параметров бу-ровзрывных работ, обеспечивающих эксплуатационное состояния горной выработки. Основную опасность при взрыве заряда взрывчатого вещества вблизи действующей выработки представляет сейсмовзрывная волна, характеристики которой определяются свойствами грунта и параметрами буровзрывных работ. Определение полей напряжений и скоростей смещений в массиве горных пород требует привлечения для своего решения современного математического аппарата. Для численного решения поставленной краевой задачи методом конечных разностей авторами построена оригинальная расчетно-разностная схема. Применение метода расщепления для решения двухмерной краевой задачи сводится к решению пространственно одномерных дифференциальных уравнений. Для полученного численного алгоритма разработана эффективная вычислительная программа. Приведены численные решения модельной задачи для случая, когда форма горной выработки представлена эллипсом. №4 (226) (2017)

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  • Authors: Boris Evgenyevich Starichenko;

    Статья является первой из двух публикаций автора, посвященных вопросам и проблемам цифровизации отечественного образования. The article is the first of two publications by the author on issues and problems of digitalization of Russian education. Педагогическое образование в России, Issue № 3, Pages 49-58

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  • The main mechanisms of formation and suppression of sulfur oxides during combustion of solid fuels in the CFB and the main regime factors affecting the concentration of sulfur oxides during air combustion are considered. The features of the mechanisms of formation and suppression of sulfur oxide emissions during oxygen combustion, which are largely associated with a high partial pressure of carbon dioxide mixed with oxygen, are shown. A comparative analysis of the effect of capturing SOx and regime factors during the combustion of oxygen and CO2 in air and the environment has been performed. The most preferred mathematical models for calculating SOx emissions are given and the calculation results are compared with experimental data. Directions and approaches to further research are indicated, primarily in the direction of modeling under conditions of co-combustion of coal and biomass. It is shown that it is topical to conduct comprehensive studies of the processes of formation and suppression of harmful emissions from the co-combustion of coal and various types of biomass, especially when burning oxygen in an environment with CO2 recirculation. The main mechanisms of formation and suppression of sulfur oxides during combustion of solid fuels in the CFB and the main regime factors affecting the concentration of sulfur oxides during air combustion are considered. The features of the mechanisms of formation and suppression of sulfur oxide emissions during oxygen combustion, which are largely associated with a high partial pressure of carbon dioxide mixed with oxygen, are shown. A comparative analysis of the effect of capturing SO and regime factors during the combustion of oxygen and CO in air and the environment has been performed. The most preferred mathematical models for calculating SO emissions are given and the calculation results are compared with experimental data. Directions and approaches to further research are indicated, primarily in the direction of modeling under conditions of co-combustion of coal and biomass. It is shown that it is topical to conduct comprehensive studies of the processes of formation and suppression of harmful emissions from the co-combustion of coal and various types of biomass, especially when burning oxygen in an environment with COrecirculation. Бухаркина Т.В., Российский химико-технологический университет им. Д.И. Менделеева, Москва Рассмотрены основные механизмы образования и подавления оксидов серы при сжигании твёрдых топлив в ЦКС и основные режимные факторы, влияющие на концентрацию оксидов серы при воздушном сжигании. Показаны особенности механизмов образования и подавления выбросов оксидов серы при кислородном сжигании, которые во многом связаны с высоким парциальным давлением двуокиси углерода в смеси с кислородом. Выполнен сравнительный анализ влияния улавливания SO и режимных факторов при сжигании в воздушной среде и среде кислорода и СО. Приведены наиболее предпочтительные математические модели для расчёта выбросов SO и дано сравнение результатов расчёта с экспериментальными данными. Указаны направления и подходы к дальнейшим исследованиям, прежде всего в направлении моделирования в условиях совместного сжигания угля и биомассы. Показано, что актуальным является проведение комплексных исследований процессов образования и подавления вредных выбросов при совместном сжигании углей и различных видов биомассы, в особенности при сжигании в среде кислорода с рециркуляцией СО. №8(1057) (2019)

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    Authors: Shabanova A.R.; Tolstoy I.M.; Lebedev I.V.;

    The aim of this paper is to increase the flight safety of an unmanned aerial vehicle that monitors power lines under the negative influence of electromagnetic fields on the on-board equipment. This problem was solved with algorithms for photo- and video-imaging and determination of wire sag. The development of monitoring algorithms should overcome the limitations of the existing solutions. Particularly, various systems employ suboptimal routes of aerial vehicle, as well introduce nonuniversal constraints of flight zone. Besides, the considered approaches do not account for peculiarities of aerial imaging and for structural specifics of power line elements. This leads to poorer image processing performance and causes additional errors. To improve evaluation of power line characteristics, the algorithm of aerial imaging is proposed, which includes vehicle position adjustment relative to wire for two imaging settings. To ensure safe performance of onboard hardware, a calculation methodology for electromagnetic field distribution is presented, which allows determine the minimum distance between the wire and the vehicle. Experimental results, obtained in simulator, show 90.22% accuracy of the proposed method. The most important research outcomes consist in achieved refinement of aerial imaging in overhead power line monitoring, as well in automation of wire sag calculation based on image data. The scientific relevance of the research consists in potential improvement of fault-tolerance of power transmission networks and decrease of power losses because of early recognition of power line failures and due repair. Consequently, maintenance costs of overhead power line service can be optimized.

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  • Постановка задачи. Одной из главных причин потери несущей способности железобетонных конструкций считается нарушение сцепления между арматурой и бетоном. Вследствие этого возникает необходимость в изучении изменения величины сцепления арматурного стержня и бетона под различными воздействиями. Следует отметить, что в связи с внешними и технологическими воздействиями механические характеристики бетона подвержены изменению, что непосредственно оказывает влияние на величину сцепления. Результаты и выводы. С помощью искусственных нейронных сетей получена аналитическая модель, описывающая конечную прочность сцепления через средние значения касательных напряжений. В качестве объекта исследования выступает бетон различных классов прочности, армированный металлической и композитной арматурой. Установлено, что величина сцепления связана с прочностными характеристиками бетона и видом применяемой арматуры. Также разработана двухслойная нейронная сеть с обратным распространением сигнала, которая с высокой точность описывает величину сцепления арматуры с бетоном. Statement of the problem. One of the major reasons for the loss of bearing capacity of reinforced concrete structures is considered to be failure of coupling between the reinforcement and concrete. As a result, there is a need to study the change in the value of the coupling of the reinforcing bar and concrete under various influences. It should be noted that due to external and technological influences, the mechanical characteristics of concrete are subject to change, which directly affects the amount of adhesion. Results and conclusions. Using artificial neural networks the analytical model was obtained that describes the final adhesion strength by means of average tangential strains. Concrete of different strength types reinforced with metal and composite reinforcement is used for this study. Adhesion was found to be associated with concrete characteristics and reinforcement type. A two-layer reverse neural network was also developed that describes adhesion of reinforcement with concrete precisely. №2(54) (2019)

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