404 research outputs found

    Media Project: Concept, Features, Aspects of Quality Management

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    The article substantiates the relevance of media design through the disclosure of the main trends in the development of the media industry: the growth of the media and entertainment industry market; the development of digital technologies. The concepts of “project”, “media”, “media project” are revealed. The interpretations of the concept of “media project” used by other authors are listed and analyzed. The main components of any project are revealed, namely the goal, deadlines and resources. The features of media projects are revealed: they can be oriented both to the market of goods and to the market of services; when developing them, it is necessary to find a balance between economic expediency and social mission; the result of a media project is that the media product is consumed in free time, that is, in leisure hours; the media product must be entertaining to some extent, due to the impact of the consumption economy; the media project is planned and implemented in conditions of: special dynamism and a high degree of uncertainty of the external environment, and also media convergences. The authors propose to introduce a new classification feature and types of media projects: “by media industry sector”: traditional, network, transmedia. The authors have identified a contradiction expressed in the fact that the quality of a media project does not guarantee the quality of a media product in a global sense — from the point of view of the intellectual development of society. The tendency of decreasing the quality of media products is revealed in detail and justified. Trends in the consumption of media products are considered: the media are becoming more and more entertaining; strengthening the primacy of the function of satisfying consumer requests before the function of education and upbringing; consumer expectations are simplified

    Method for Prediction of the Power Output from Photovoltaic Power Plant under Actual Operating Conditions

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    Solar photovoltaic technology is one of the most rapidly growing renewable sources of electricity that has practical application in various fields of human activity due to its high availability, huge potential and environmental compatibility. The original simulation model of the photovoltaic power plant has been developed to simulate and investigate the plant operating modes under actual operating conditions. The proposed model considers the impact of the external climatic factors on the solar panel energy characteristics that improves accuracy in the power output prediction. The data obtained through the photovoltaic power plant operation simulation enable a well-reasoned choice of the required capacity for storage devices and determination of the rational algorithms to control the energy complex

    Methodology of the evaluation of thermal reliability of the walls by the criteria of the heat losses

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    Розроблена імовірнісна методика оцінювання рівня теплової надійності огороджувальних конструкцій з урахуванням випадкового характеру властивостей будівельних матеріалів та температури атмосферного повітря. Методика базується на аналізі граничних нерівностей, сформованих на основі відомих закономірностей теплопередачі. Thermal reliability of the enclosures is analyzed by probabilistic methods taking into account random character of the structure dimensions, properties of the building materials and air temperature. Statistical characteristics of the heat resistance are calculated by function linearization of random values of the thickness and the coefficients of thermal conductivity of structural layers of the wall. Probability of the failure based on the criterion of insufficient resistance of the heat transfer equals the probability that normally distributed random value of the resistance of the heat transfer will be less than minimum acceptable value set by the design standards for given temperature area. Analysis of the impact of design parameters on statistical properties of the resistance of the heat transfer and value of the failure probability showed that the variability of the thickness of the wall layers can be ignored. The variability of the coefficients of the heat transfer must be considered only for efficient insulation and structurally-thermal insulation layers with large thermal resistance. The probability of the failure based on criterion of exceeding the maximum acceptable heat flow equals the probability that actual intensity of the heat flow through the enclosure will exceed certain threshold value. Maximum allowable intensity of heat flow is defined by the value of normative heat looses of the buildings during the heating season or by the value of heat transfer through properly designed enclosures in design terms of the operating. Certain incertitude in setting maximum allowable value of the intensity of the heat flow restricts the application of such method to the comparative evaluation of the heat reliability of the wall structures of the various types in close condition of the operation

    Maintenance of <I>Francisella tularensis</I> 15 RIEH and <I>Brucella abortus</I> 19 BA Strains in a Viable State by Means of Deep Freezing

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    Assessed are the methods for storage of microorganisms in a viable state under various technological conditions for a period of two years. Compared is the survivability of the test-strains of tularemia and brucellosis agents (exemplified by Francisella tularensis 15 RIEH and Brucella abortus 19 BA) when stored on the nutrient media at temperatures raging 0 °C up +8 °C and at -70 °C for over a year. Made has been an estimate of survivability of the vaccine strains stored at -70 °C within two years term. It is determined that optimum media for storing the stated above microorganisms with no changes in their morphological characteristics at -70 °C are sucrose-gelatin agar and Albimi broth with 10 % glycerin. Demonstrated is the fact that it is more efficient to conserve microorganisms stored in working collections by way of deep freezing

    Characterization of a novel dioxomolybdenum complex by cyclic voltammetry

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    Metalloenzymes that carry a pterin-based molybdenum cofactor in their center catalyze numerous reactions in the human body and play a crucial role in its metabolism. Specifically, these enzymes promote redox reactions and oxygen transport in the body. Their absence may cause many problems leading to disability or even death in early childhood. Therefore, model compounds need to be synthesized and analyzed to investigate the reactivity, redox potential, and geometry of these cofactors. This study focused on electrode processes and determined the redox potentials of the new bis-(4-mercapto-5-(p-tolyl)-3H-1,2-dithiole-3-thione)-dioxomolybdenum complex by cyclic voltammetry. The 4-mercapto-5-(p-tolyl)-3H-1,2-dithiole-3-thione ligand underwent irreversible oxidation and reduction at thiol and thione functional groups. The new dioxomolybdenum complex showed a quasi-reversible two-stage electrode process

    Solution to the problem popularization of healthy life style among youth of Yekaterinburg

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    This article substantiates the relevance of the chosen research topic, analyzes the sources and literature, identifies the relevance and purpose of the study. Terms and concepts of social work with youth are deciphered. The results of students of the department of social work and sociology of medicine "Ural State Medical University, Ministry of Health of the Russian Federation" are described in this article.В данной статье обоснована актуальность выбранной темы исследования, проведен анализ источников и литературы, обозначена актуальность и цель исследования. Расшифрованы термины и понятия социальной работы с молодёжью. Описаны результаты анкетирования студентов кафедры социальной работы и социологии медицины «Уральский государственный медицинский университет Министерства здравоохранения Российской Федерации»

    Use of a neural network in creating a digital assistant for blind and visually impaired people

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    The experience of ongoing research in image processing clearly demonstrates the huge scope for the development of new neural networks that can help people in a wide range of tasks. The authors chose the direction of work related to helping people who have vision problems. The article considers a convolutional neural network of the Mask R-CNN model for segmenting objects in an image. During the research the authors study a large number of algorithms that can quickly and accurately process images, such as Faster R-CNN, which was the most efficient in 2020. During the analysis, it was revealed that the use of Mask R-N technology can significantly increase the efficiency of performing tasks, since this algorithm is the latest version of the machine learning model. As a result of the study, a neural network was developed that is capable of identifying and distinguishing a large number of objects in an image. The next step is to refine the algorithm and use additional means of interaction with the hardware of the systems to increase the speed of the neural network. In the future, the resulting neural network will be integrated into the Digital Assistant for the Blind and Visually Impaired Persons application. This application is guaranteed to improve the daily life of people with disabilities who experience certain inconveniences due to their features, and can become the basis for other, larger projects related, for example, to unmanned devices, as well as services whose work is directly based on image processing

    Simulation of Electrical Characteristics of a Solar Panel

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    The fast-growing photovoltaic system market leads to the necessity of the informed choice of major energy components and optimization of operating conditions in order to improve energy efficiency. Development of mathematical models of the main components of photovoltaic systems to ensure their comprehensive study is an urgent problem of improving and practical using of the technology of electrical energy production. The paper presents a mathematical model of the solar module implemented in the popular software MATLAB/Simulink. Equivalent circuit of the solar cell with a diode parallel without derived resistance is used for modelling. The serie8s resistance of the solar module is calculated by Newton's iterative method using the data of its technical specifications. It ensures high precision of simulation. Model validity was evaluated by the well-known technical characteristics of the module Solarex MSX 60. The calculation results of the experiment showed that the obtained current-voltage and current-watt characteristics of the model are compatible with those of the manufacturer

    Stationary Flows of the Parabolic Potential Barrier in Two Dimensions

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    In the two-dimensional isotropic parabolic potential barrier V(x,y)=V0mγ2(x2+y2)/2V(x, y)=V_0 -m\gamma^2 (x^2+y^2)/2, though it is a model of an unstable system in quantum mechanics, we can obtain the stationary states corresponding to the real energy eigenvalue V0V_0. Further, they are infinitely degenerate. For the first few eigenstates, we will find the stationary flows round a right angle that are expressed by the complex velocity potentials W=±γz2/2W=\pm\gamma z^2/2.Comment: 12 pages, AmS-LaTeX, 4 figure
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