Целевая аудитория: "Промышленность" (стр.3)
| Название: | INTELLIGENT TECHNOLOGIES FOR RESTORING PARAMETERS OF COMPLEX SYSTEMS AT THE LIFE CYCLE STAGES | 
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| Автор ПГУ: | Гришко Алексей Константинович  | |
| Тематика: | техника | |
| Вид ресурса: | электронная копия бумажного издания | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное | |
| Дата издания: | 2024 | |
| Дата загрузки: | 03.10.2024 | |
| Издательство: | Изд. ПГУ | |
| Название: | Luminous flux control in a fiber-optic measuring transducer |
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| Автор ПГУ: | Бадеева Елена Александровна Мурашкина Татьяна Ивановна Чукарева Мария Михайловна | |
| Тематика: | техника | |
| Вид ресурса: | электронная копия бумажного издания | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научно-популярное, Производственно-практическое | |
| Дата издания: | 2017 | |
| Дата загрузки: | 22.11.2018 | |
| Издательство: | Institute of Physics and IOP Publishing Limited, UK | |
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ИР получен из базы данных "Scopus" автоматически
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| Название: | Mapping of Beta Distribution for the Study of Dispersed Materials |
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| Автор ПГУ: | Полосин Виталий Германович | |
| Тематика: | техника | |
| Вид ресурса: | электронная копия бумажного издания | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное, Научное | |
| Аннотация: | Abstract. In the study of polydisperse materials, most of the experimental particle size distributions were obtained on bounded intervals. In these cases, it is also desirable to use bounded models with different shapes to simulate the results of studying polydisperse and powder materials. The beta distribution is often used to approximate results due to the fact that this distribution contains many forms for displaying realizations on a limited interval. With the development of computer technology, there has been an increased interest in the use of beta distribution in the modern practice of analyzing results. Meanwhile, there remains a limitation in the use of the beta distribution that is associated with the choice of distribution shape. The possibilities of using known shape measures for mapping beta distribution in this paper is discusses. On the example of the space of shape measure of kurtosis and skewness, the limited use of only probabilistic measures of shapes is illustrated. It is proposed to use the entropy coefficients as an additional informational parameter of the beta distribution shape. On the base of a features comparison of the entropy coefficients for biased and unbiased beta distributions, recommendations for their application are given. By using the example of beta distributions mapping in the space of asymmetry and the entropy coefficient, it is shown that the synergistic combination of probabilistic and informational measures of the shape allows expanding the possibilities of estimating the shape parameters beta distributions. Two methods to display the positions of realizations of beta distributions is proposed. There are trajectories on a constant ratio of shape and realizations position curve on equal values of one parameter. In particular, the features of the choice of beta distributions with negative skewness are discussed. | |
| Дата издания: | 2022 | |
| Дата загрузки: | 15.11.2022 | |
| Издательство: | Springer International Publishing, Switzerland | |
| Название: | Mapping of Beta Distribution for the Study of Dispersed Materials |
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| Автор ПГУ: | Полосин Виталий Германович | |
| Тематика: | техника, физико-математические науки | |
| Вид ресурса: | электронная копия бумажного издания | |
| Тип ресурса: | Журнал | |
| Целевое назначение: | Научное | |
| Аннотация: | In the study of polydisperse materials, most of the experimental particle size distributions were obtained on bounded intervals. In these cases, it is also desirable to use bounded models with different shapes to simulate the results of studying polydisperse and powder materials. The beta distribution is often used to approximate results due to the fact that this distribution contains many forms for displaying realizations on a limited interval. With the development of computer technology, there has been an increased interest in the use of beta distribution in the modern practice of analyzing results. Meanwhile, there remains a limitation in the use of the beta distribution that is associated with the choice of distribution shape. The possibilities of using known shape measures for mapping beta distribution in this paper is discusses. On the example of the space of shape measure of kurtosis and skewness, the limited use of only probabilistic measures of shapes is illustrated. It is proposed to use the entropy coefficients as an additional informational parameter of the beta distribution shape. On the base of a features comparison of the entropy coefficients for biased and unbiased beta distributions, recommendations for their application are given. By using the example of beta distributions mapping in the space of asymmetry and the entropy coefficient, it is shown that the synergistic combination of probabilistic and informational measures of the shape allows expanding the possibilities of estimating the shape parameters beta distributions. Two methods to display the positions of realizations of beta distributions is proposed. There are trajectories on a constant ratio of shape and realizations position curve on equal values of one parameter. In particular, the features of the choice of beta distributions with negative skewness are discussed. | |
| Дата издания: | 2022 | |
| Дата загрузки: | 15.11.2022 | |
| Издательство: | Trans Tech Publications Ltd. | |
| Название: | Mapping of Beta Distribution for the Study of Dispersed Materials |
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| Автор ПГУ: | Полосин Виталий Германович | |
| Тематика: | техника, физико-математические науки, медицина | |
| Вид ресурса: | электронная копия бумажного издания | |
| Тип ресурса: | Журнал | |
| Целевое назначение: | Научное | |
| Аннотация: | In the study of polydisperse materials, most of the experimental particle size distributions were obtained on bounded intervals. In these cases, it is also desirable to use bounded models with different shapes to simulate the results of studying polydisperse and powder materials. The beta distribution is often used to approximate results due to the fact that this distribution contains many forms for displaying realizations on a limited interval. With the development of computer technology, there has been an increased interest in the use of beta distribution in the modern practice of analyzing results. Meanwhile, there remains a limitation in the use of the beta distribution that is associated with the choice of distribution shape. The possibilities of using known shape measures for mapping beta distribution in this paper is discusses. On the example of the space of shape measure of kurtosis and skewness, the limited use of only probabilistic measures of shapes is illustrated. It is proposed to use the entropy coefficients as an additional informational parameter of the beta distribution shape. On the base of a features comparison of the entropy coefficients for biased and unbiased beta distributions, recommendations for their application are given. By using the example of beta distributions mapping in the space of asymmetry and the entropy coefficient, it is shown that the synergistic combination of probabilistic and informational measures of the shape allows expanding the possibilities of estimating the shape parameters beta distributions. Two methods to display the positions of realizations of beta distributions is proposed. There are trajectories on a constant ratio of shape and realizations position curve on equal values of one parameter. In particular, the features of the choice of beta distributions with negative skewness are discussed. © 2022 Trans Tech Publications Ltd, Switzerland. | |
| Дата издания: | 2022 | |
| Дата загрузки: | 15.11.2022 | |
| Издательство: | Trans Tech Publications Ltd. | |
| Название: | Measures of shape for the generalized beta exponential distribution |
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| Автор ПГУ: | Полосин Виталий Германович | |
| Тематика: | физико-математические науки, техника | |
| Вид ресурса: | мультимедийный ресурс | |
| Тип ресурса: | Журнал | |
| Целевое назначение: | Научное | |
| Аннотация: | This paper contains parametric and informational measures of shape for various families of the generalized beta exponential distribution since it is important to determination of the distribution shape for analysing an experimental data set. A logistic parameter is used to select independent types of beta exponential distributions, that it allows to combine the distributions of different subfamilies. In this paper the use of parametric shape measures to predefine distribution shape is discusses. In particular, the initial and standard central moments for the main types of generalized beta exponential distribution are given. In the paper it is proposes to use the entropy coefficient of unshifted distribution as an independent information measure of the shape of unshifted generalized beta exponential distributions. In order to increase the reliability of the preliminary determination of the shape of the model, expressions for the entropy coefficient of shifted families both the generalized beta exponential distributions of the first and second types, and the generalized gamma exponential distribution were obtained. For practical applied the entropy coefficients of unshifted distributions for various subfamilies of generalized beta exponential distributions can be useful. © 2021 Institute of Physics Publishing. All rights reserved. | |
| Дата издания: | 2022 | |
| Дата загрузки: | 15.11.2022 | |
| Издательство: | IOP Publishing | |
| Название: | Measuring complex for testing pulsed thermoelectronic training of electronic components | 
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| Автор ПГУ: | Ишков Антон Сергеевич Солодимова Галина Анатольевна | |
| Тематика: | техника | |
| Вид ресурса: | электронная копия бумажного издания | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Производственно-практическое | |
| Аннотация: | Thermal-electric testing is one of the obligatory types of testing in the development of electronic products and their mass production. Exposure to elevated temperature and electrical load allows accelerating the processes in the structure of materials of the product, leading to the appearance of defects and subsequent failures. The automated measuring complex has been developed with the aim of increasing the reliability and efficiency of testing electronic components, in particular, microcircuits of sets of resistors. The complex provides an impact on the object test voltage up to 200V at temperatures up to 2500C. The distinguishing features of the complex are the presence of electronic commutation of power circuits, the rapid acquisition of data on the testing process in electronic form. High metrological characteristics, automation of the measurement process allows to increase the reliability of tests while reducing time and material resources. | |
| Дата издания: | 2019 | |
| Дата загрузки: | 18.11.2019 | |
| Издательство: | 2019 International Seminar on Electron Devices Design and Production (SED), Prague, Czech Republic | |
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ИР получен из базы данных "Scopus" автоматически
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| Название: | Measuring corrosion rate and protector effectiveness of advanced multilayer metallic materials by newly developed methods |
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| Автор ПГУ: | Розен Андрей Евгеньевич Перелыгин Юрий Петрович Киреев Сергей Юрьевич Лось Ирина Сергеевна | |
| Тематика: | химия | |
| Вид ресурса: | электронная копия бумажного издания | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное | |
| Аннотация: | Предлагаются методики определения скорости коррозии многослойных материалов с внутренним протектором. | |
| Дата издания: | 2018 | |
| Дата загрузки: | 12.11.2018 | |
| Издательство: | IOP Publishing | |
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ИР получен из базы данных "Scopus" автоматически
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| Название: | Method for Measuring the Acoustic Emission of Developing Microcracks in Machine Parts |
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| Автор ПГУ: | Кревчик Владимир Дмитриевич Рудин Александр Васильевич Задера Александр Викторович Семенов Михаил Борисович Семенов Иван Михайлович | |
| Тематика: | физико-математические науки | |
| Вид ресурса: | электронное немультимедийное издание | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Производственно-практическое | |
| Дата издания: | 2020 | |
| Дата загрузки: | 21.11.2020 | |
| Издательство: | IEEE | |
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ИР получен из базы данных "Scopus" автоматически
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| Название: | Model reproduction of non-equilibrium thermodynamics principles as a means to provide software self-development |
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| Автор ПГУ: | Кольчугина Елена Анатольевна | |
| Тематика: | техника | |
| Вид ресурса: | электронное немультимедийное издание | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное | |
| Дата издания: | 2021 | |
| Дата загрузки: | 14.11.2022 | |
| Издательство: | IOP Publishing | |
| Название: | Moment Ratio and Entropy Coefficient Display for Beta Distribution od second kind |
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| Автор ПГУ: | Полосин Виталий Германович | |
| Тематика: | техника | |
| Вид ресурса: | мультимедийный ресурс | |
| Тип ресурса: | Журнал | |
| Целевое назначение: | Научное, Информационное, Производственно-практическое | |
| Аннотация: | The paper contains material on the choice of the form of distribution of income of the population and the assessment of the parameters of the stochastic volatility model, which are based on beta distributions. Since the mathematical description of complex systems is often built on the basis of distribution models that are given on the positive semi axis, then for these purposes, beta distribution of the second kind and its moments is often used. As the output arrays of complex processes are scaled in units of controlled physical quantities, it makes difficult to applied the classical moments method to analysis of the shape parameter of beta distributions. For this reason, the method of standardized moments is used to preliminary determine the type of distributions. However, this method makes not possible to estimate the shapes parameters of beta distributions. The objective of this paper is to study the possibility of using entropy coefficients to construct a display space for estimates of the shape parameters of the beta distribution of the second kind. Also, this paper addresses the problem of constructions of the diagram for the modelling shapes of the beta distribution of the second kind. | |
| Дата издания: | 2022 | |
| Дата загрузки: | 15.11.2022 | |
| Издательство: | European Proceedings of Social and Behavioural Sciences EpSBS | |
| Название: | Neural network classification of aviation personnel as an element of the information and control space for the security of a transport infrastructure object |
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| Автор ПГУ: | Горбаченко Владимир Иванович Абрамов Игорь Анатольевич Лев Николаевич Николай Иванович | |
| Тематика: | физико-математические науки | |
| Вид ресурса: | электронное немультимедийное издание | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное | |
| Дата издания: | 2020 | |
| Дата загрузки: | 03.12.2021 | |
| Издательство: | IOP Conference Series | |
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ИР получен из базы данных "Scopus" автоматически
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| Название: | NEW TOOLS FOR MECHANIZATION OF MACHINES FOR TAPPING INTO PIPELINES UNDER MEDIUM PRESSURE |
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| Автор ПГУ: | Лебединский Константин Валерьевич | |
| Тематика: | техника | |
| Вид ресурса: | электронная копия бумажного издания | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Производственно-практическое | |
| Дата издания: | 2025 | |
| Дата загрузки: | 28.11.2025 | |
| Издательство: | Allerton Press, Inc. | |
| Название: | Numerical Modeling of Tunable Nonlinear Graphene-Based Metamaterials, Metasurfaces and Metadevices for Nanophotonics |
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| Автор ПГУ: | Олег Александрович Михаил Михайлович Макеева Галина Степановна | |
| Тематика: | физико-математические науки | |
| Вид ресурса: | электронная копия бумажного издания | |
| Тип ресурса: | Сборник статей, трудов | |
| Целевое назначение: | Научное | |
| Дата издания: | 2018 | |
| Дата загрузки: | 10.10.2021 | |
| Издательство: | Metamorphose VI AISBL | |
| Название: | Principles of reliability improvement of fiber-optic sensors for rocket and space equipment and aeronautical engineering |
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| Автор ПГУ: | Торгашин Сергей Иванович Мурашкина Татьяна Ивановна Бадеева Елена Александровна Янкина Наталья Николаевна Полякова Екатерина Алексеевна | |
| Тематика: | техника | |
| Вид ресурса: | электронная копия бумажного издания | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное, Производственно-практическое | |
| Дата издания: | 2019 | |
| Дата загрузки: | 18.12.2019 | |
| Издательство: | Institute of Electrical and Electronics Engineers Inc. | |
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ИР получен из базы данных "Scopus" автоматически
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| Название: | Processing of agricultural waste in the Penza region |
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| Автор ПГУ: | Бростилова Татьяна Юрьевна Владимир Яковлевич Голобоков Сергей Владимирович Горячев Владимир Яковлевич | |
| Тематика: | техника | |
| Вид ресурса: | электронное немультимедийное издание | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Учебное, Производственно-практическое | |
| Дата издания: | 2020 | |
| Дата загрузки: | 20.11.2020 | |
| Издательство: | Издательство Institute of Physics and IOP Publishing Limited | |
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ИР получен из базы данных "Scopus" автоматически
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| Название: | Prospects for Using Vertical-Axis Wind Turbines in the Context of Current Urban Development |
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| Автор ПГУ: | Ашанин Василий Николаевич Елинов Дмитрий Александрович | |
| Тематика: | техника | |
| Вид ресурса: | электронная копия бумажного издания | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное | |
| Дата издания: | 2022 | |
| Дата загрузки: | 23.11.2022 | |
| Издательство: | Institute of Electrical and Electronics Engineers Inc | |
| Название: | Providing cyclic robustness of bolted joints in case of assembly with implementation of anaerobic materials |
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| Автор ПГУ: | Воячек Игорь Иванович Кочетков Денис Викторович Зверовщиков Владимир Зиновьевич | |
| Тематика: | техника | |
| Вид ресурса: | электронная копия бумажного издания | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное, Производственно-практическое, Учебное | |
| Аннотация: | Stress concentration in thread roots and nonuniform load distribution along thread turn are the major disadvantages of bolted joints. Under changing cyclic loads on areas of high stress concentration crack formation and destruction of parts occur. In addition, the fretting corrosion processes activate in the areas of contact between thread turns. The purpose of the work is to increase rupture strength of bolted joints under the action of cyclic forces by decreasing stress concentration and reducing movements in contact zone of mating parts in case of assembly with implementation of anaerobic materials. Modelling of bearing strength of bolted joints is conducted according to finite element method, with theory of contact interaction between mating surfaces being used. The results of experimental research are given. Anaerobic materials which polymerize in area of thread contact of parts are used. It was established that assembly with implementation of anaerobic material allows unloading of thread turns because the part of external load is received by elastic layers of the polymerized anaerobic material. In this case the level and the concentration of stress in thread roots reduce, relative movements are decreased, the joint becomes more rigid and its cyclic robustness grows. | |
| Дата издания: | 2019 | |
| Дата загрузки: | 23.10.2019 | |
| Издательство: | Trans Tech Publications Ltd. | |
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ИР получен из базы данных "Scopus" автоматически
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| Название: | QUANTILE ESTIMATES OF ENTROPY UNCERTAINTY FOR DISTRIBUTIONS SUPPORTED ON BOUNDED INTERVAL |
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| Автор ПГУ: | Полосин Виталий Германович | |
| Тематика: | физико-математические науки | |
| Вид ресурса: | электронное немультимедийное издание | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное, Информационное | |
| Дата издания: | 2025 | |
| Дата загрузки: | 04.06.2025 | |
| Издательство: | EDP Sciences - Web of Conferences (Les Ulis) | |
| Название: | Rational provision of functional properties of interference fit joints in case of assembly with implementation of anaerobic materials |
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| Автор ПГУ: | Воячек Игорь Иванович Кочетков Денис Викторович Зверовщиков Владимир Зиновьевич | |
| Тематика: | техника | |
| Вид ресурса: | электронная копия бумажного издания | |
| Тип ресурса: | Статья | |
| Целевое назначение: | Научное, Производственно-практическое, Учебное | |
| Аннотация: | One of the advanced ways of provision of functional properties of interference fit joints is to control contact interaction between mating parts, particularly by assembling with application of anaerobic materials polymerizing in contact area. The main advantage of using anaerobic materials is that this technology allows us to harden different parts of the joints selectively. The purpose of the work is to study the possibility of rational provision of functional properties of interference fit joints by selective hardening in case of assembling with the use of anaerobic materials. Modelling of bearing strength of interference fit joint is carried out according to finite element method, with theory of contact interaction between mating surfaces being used. The results of experimental research are given. Anaerobic material is used as a material for hardening of joints. It was discovered that exploitation load in form of torque or axial force is distributed along the length of interference fit joint rather nonuniformly. To decrease expenses it is necessary to harden those areas of joint which are located by the side of load application. The way of assembling of interference fit joints by pressing with selective use of hardening material is proposed. The technique of reliable identification of the necessity and the moment to apply anaerobic material while assembling parts was developed. As a result, functional properties of pressure joints are reached the most rational way. | |
| Дата издания: | 2019 | |
| Дата загрузки: | 23.10.2019 | |
| Издательство: | Trans Tech Publications Ltd. | |
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ИР получен из базы данных "Scopus" автоматически
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