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The study presents a detailed analysis of the ultramicroscopic structure of the rat submandibular glands in chronic ethanolintoxication at the later stages of the experiment. It has been established that prolonged exposure to ethanol at the later stages of the experiment was characterized by the appearance of signs of adaptive-compensatory responses of the parenchymal elements and vessels of the blood microvascular system with the emergence of dystrophic changes and apoptosis of ductal epithelium; however, no complete regeneration of the structure was detected. ; В даному дослідженні було проведено детальне вивчення ультрамікроскопічної будови піднижньо-щелепних слинних залоз щурів за хронічної інтоксикації етанолом на пізніх термінах експерименту та було встановлено, що тривала дія етанолу на пізніх стадіях експерименту характеризується появою ознак адаптивно-компенсаторних реакцій паренхіматозних елементів та судин гемомікроциркуляторного русла з виникненням дистрофічних змін та явищами апоптозу протокового епітелію, однак повного відновлення структури не відбувалось. ; В данном исследовании было проведено детальное изучение ультрамикроскопического строения поднижнечелюстных слюнных желез крыс при хронической интоксикации этанолом на поздних терминах эксперимента. Было установлено, что длительное воздействие этанола на поздних стадиях эксперимента характеризуется появлением признаков адаптивно-компенсаторных реакций паренхи- матозных компонентов и сосудов гемомикроциркуляторного русла с возникновением дистрофических изменений и явлениями апоптоза протокового эпителия, однако полного восстановления структуры не происходило.

At the current stage, in electrical distribution systems from Republic of Moldova, take place a significant number of unplanned disconnections, which considerably reduce quality and continuity of the distribution process and power supply. Knowing the evolution of these disconnection for long periods, offers the possibility to elaborate a credible prognosis, which helps to establish solutions to ensure the reliability of these systems. In this work, is presented a study regarding evolution of unplanned disconnections from electrical republican distribution systems and the results of this study allow developing the insurance mechanism of the reliability indicators and quality of power supply, forRepublic of Moldova.

This article addresses the problem that fluctuations in the torque of an internal combustion engine (ICE) lead to additional energy losses, as it causes fluctuations in the speed and kinetic energy of the car. These losses increase as the frequency of oscillations of the torque of the internal combustion engine approaches the frequency of free (natural oscillations) of the running gear of the car in the longitudinal direction. If there is an elastic connection between the traction force and the movement of the car, the movement of the latter can be represented as complex. At the same time, the portable movement is uniform, and the relative movement is oscillatory. This article presents the results of the study of these losses for cars with mechanical and combined electromechanical drive wheels. Analytical expressions are obtained, which allows to take into account additional energy losses including the tangential rigidity of the tire and the rigidity of the suspension in the longitudinal direction. When using a combined electromechanical drive of the drive wheels as well as in the case of a mechanical transmission of a car, the resonance is dangerous. But with the increase in the share of torque kem on the wheel generated by the electric motor, the relative additional energy losses for the movement of the car are reduced.

Silicon (Si) quantum dots (QDs) passivated with oxygen and hydrogen of size 1 nm in diameter are prepared by wet chemical route and electrochemical route respectively. The optical measurements reveal the strong absorption feature around 4.7 eV and weak absorption at 3.4 eV for oxygen passivated Si QDs. Hydrogen passivated Si QDs of the same size show absorption at 4.9 eV. Both the oxygen and hydrogen passivated Si QDs show broad luminescence around 3.9 and 3.8 eV. Films of these QDs, when coated on crystalline silicon solar cells, show an increase in the efficiency of the solar cell by 12 %. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/27881

The UK government is committed to a target of 15% of energy from renewable sources by 2210, yet it is unlikely that this will be met on current progress. While surveys indicate wide support for renewable energy, attempts to site wind farms in specific locations are frequently and fiercely resisted. In this paper, we examine this apparent contradiction. We draw on a number of wind farm conflicts, and explore the discursive formulations of key stakeholders. In particular, the management of opposition against something that has popular support is considered, along with the strategies deployed to avoid accusations of selfish parochialism. The effect that opposition has on particular sitting conflicts, the state of wind energy developments, and the renewable debate at large will be reflected upon. The importance of sociological inquiry into these issues will be emphasised, but more importantly, the application of discourse analysis is put forward as an applied method to investigate ecological problems, such as the resistance of renewable energy sources. При цитировании документа, используйте ссылку http://essuir.sumdu.edu.ua/handle/123456789/24541 Уряд Великобританії прагне до 2210 року досягти 15% бар’єру виробництва енергії за рахунок поновлюваних джерел, але на думку автора це малоймовірно, враховуючи поточний прогрес. Дослідження показують широку підтримку в суспільстві щодо використання поновлюваних джерел енергії, проте спроби встановлення вітрових електростанцій в придатних для цього місцях часто призупиняються через різного роду конфлікти. У цій статті автори розглядають суперечності розвитку вітрової енергетики в Великобританії, описують ряд конфліктів вітрової енергетики, а також досліджують дискурсивні позиції зацікавлених сторін. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/24541 Правительство Великобритании стремится до 2210 года достичь 15% барьера производства энергии за счет возобновляемых источников но, по мнению авторов, это маловероятно, учитывая текущий прогресс. Исследования показывают широкую поддержку в общества относительно использования возобновляемых источников энергии, однако попытки установления ветровых электростанций в пригодных для этого местах часто приостанавливаются из-за разного рода конфликтов. В этой статье авторы рассматривают противоречия развития ветровой энергетики в Великобритании. При цитуванні документа, використовуйте посилання http://essuir.sumdu.edu.ua/handle/123456789/24541

To determine the possibility of self-stabilization effect for burden surface texture and gas flow in operating blast furnace under the proper conditions was experimentally proved for the first time, as well as the reasons of the effect disruption.

MTA-ME Műszaki Földtudományi Kutatócsoport

The main parameters of the microclimate of pig farms are regulated by the norms of technological design. Naturally, such micro-climate parameters at real energy prices require high costs, but these are the most favourable conditions for the life of suckling piglets. According to the presented analysis, the problem of research is the need to provide a micro-climate in the room for comfortable keeping of pigs, which is currently achieved through high energy. The purpose of the development is to increase the efficiency of the microclimate of pig farms by using a mechatronic control system, rational use of utilized air energy and soil thermal potential with reduced energy costs of the ventilation system. The problem is solved by creating such a mechatronic system to ensure the microclimate of pig farms, which can: switch the direction of airflow to ensure the operation of the system in winter and summer; to control the movement of air, which must be disposed of according to the parameters of its quality; to provide a local microclimate in each place where animals are kept; rational use of soil thermal energy as a source of alternative energy; to carry out automatic pumping of the water necessary for humidification of air, and its utilization. The article presents the results of research of parameters of the developed mechatronic system of providing microclimate of pig premises, which were carried out in three stages: research of heat exchanger of side-evaporating type; substantiation of the ventilation system of polluted air intake; substantiation of the ventilation system for injecting clean air taking into account it's geothermal heating/cooling. The advantage of the proposed mechatronic system of the microclimate of pig farms is that it allows increasing the efficiency of microclimate by rational use of energy of utilized air (due to the use of side-evaporator type heat exchanger based on Maisotsenko cycle) and soil heat potential (geothermal energy) at low operating costs of the ventilation system through the additional provision of mechatronic elements. The presented results of numerical simulation of the indirect evaporative heat exchanger allow us to state that the cooling effect obtained in indirect evaporative channels can be quite high in comparison with traditional air conditioning patterns. The presented heat exchanger based on the Maisotsenko cycle (M-cycle) of considered heat carrier flow scheme is characterized by its high cost-effectiveness, low specific cost, small operational costs and structural simplicity, which is confirmed in the works. The models obtained in the Star CCM +software package can be used for optimization analysis of air-cooling with variations in the Reynolds number, humidity, channel length and geometric dimensions of channels. Because of analytical investigations of the contaminated air intake ventilation system, the method was developed and on its basis – the algorithm was implemented for the determination of geometrical arrangement of holes in the air duct of the mechatronic system for pigsty microclimate maintenance.