Electrochemical processes and systems: application for tutors

The features of redox reactions and the principles of their balancing according to the medium composition are considered. The basic representations about electrochemical processes and systems are outlined. The reactions and principles of chemical sources of electric energy and electrolysis systems functioning are analyzed. A general idea is given about the chemical properties of metals, corrosion resistance in environments of various aggressiveness, and the protection principles are given. Multivariate tasks and exercises for students, and PhD student’s classroom and independent work are offered. For teachers, PhD students and students of universities of specialties "Chemical technologies and engineering", "Biotechnologies and bioengineering", "Oil and gas engineering and technologies".Розглянуто особливості окисно-відновних реакцій і принципи їх балансування залежно від складу середовища. Викладено фундаментальні уявлення про електрохімічні процеси і системи. Проаналізовано перебіг реакцій і принципи функціонування хімічних джерел електричної енергії та систем електролізу. Узагальнено уявлення щодо хімічних властивостей металів, корозійної стійкості у середовищах різної агресивності та наведено принципи організації захисту від руйнування. Запропоновано багатоваріантні завдання та вправи для аудиторної та самостійної роботи студентів і аспірантів. Розраховано на викладачів, аспірантів і студентів вищих навчальних закладів спеціальностей "Хімічні технології та інженерія”, "Біотехнології та біоінженерія", "Нафтогазова інженерія та технології"

Radial distribution of the inner magnetosphere plasma pressure using low-altitude satellite data during geomagnetic storm: the March 1-8, 1982 Event

Plasma pressure distribution in the inner magnetosphere is one of the key parameters for understanding the main magnetospheric processes including geomagnetic storms and substorms. However, the pressure profiles obtained from in-situ particle measurements by the high-altitude satellites do not allow tracking the pressure variations related to the storms and substorms, because a time interval needed to do this generally exceeds the characteristic times of them. On contrary, fast movement of low-altitude satellites makes it possible to retrieve quasi-instantaneous profiles of plasma pressure along the satellite trajectory, using the fluxes of precipitating particles. For this study, we used the Aureol-3 satellite data for plasma pressure estimation, and the IGRF, Tsyganenko 2001 and Tsyganenko 2004 storm time geomagnetic field models for the pressure mapping into the equatorial plane. It was found that during quiet geomagnetic condition the radial pressure profiles obtained coincide with the profiles, obtained previously from the high-altitude measurements. On the contrary, it was found that during geomagnetic storm the plasma pressure profiles became sharper; the position of the maximum of plasma pressure corresponds to expected one for given Dst minimum; the maximum value of inner magnetosphere static pressure correlates with the solar wind dynamic pressure. Increase in the plasma pressure profiles indicates the possibility to consider the interchange instability as one of important factors for the development of the main phase of geomagnetic storm.Comment: Accepted in Advances in Space Researc

The interaction of the technical college and the employer: the prospects of social partnership

Социальное партнерство авторы статьи понимают как особый тип взаимодействия образовательного учреждения со всеми субъектами рынка труда, территориальными органами управления. Совершенно очевидно, что подготовить современного специалиста невозможно в отрыве от реального производства, без обеспечения возможности знакомиться и осваивать то оборудование и технологии, с которыми они встретятся, придя на предприятия.The authors of the article understand the social partnership as a special type of interaction of the educational institution with all subjects of the labor market, territorial authority aimed at maximizing the interests of all participants in this process. It is obvious that it is impossible to prepare a modern specialist in isolation from the real production without a guarantee of possibility to meet and master the equipment and technologies with which they’ll be working, coming to the company. At the college a system of social partnership was created, which is an integral part of the development of technical college

Assessment of Surface Downwelling Shortwave Radiation in 2021-2050 in Laayoune − Sakia El Hamra Region, Morocco

Morocco's energy system is highly dependent on external energy markets. According to the Ministry Energy, Mines and Sustainable Development today more than 93 % of energy resources are imported to Morocco. In 2008 the Moroccan Government has developed a National Energy Strategy, and one of its priority areas is to increase the share of renewable technologies in the country's energy sector. Morocco is rich in solar energy resources. Studies on the assessment of the Morocco's solar energy potential indicate, among other benefits, low additional costs when using solar installations compared to losses associated with the solution of future climate problems and lack of resources. The plan envisages the commissioning of solar power plants in Ouarzazate, Ain Ben Mathar, Boujdour, Tarfaya and Laayoune by 2020.The aim of this research is determination of the characteristics of the distribution of Surface Downwelling Shortwave Radiation in the area of the solar power Boujdour, Tarfaya and Laayoune, located in the Laayoune − Sakia El Hamra region in 2021−2050. The data from regional climate modeling with high spatial resolution of the CORDEX-Africa project are used in this research. The RCM modeling is carried out for the region of Africa, in a rectangular coordinate system with a spatial resolution of ~ 44 km. Then, from the modeling data, values are highlighted for the territory of Laayoune − Sakia El Hamra region. Model calculation is performed taking into account the greenhouse gas concentration trajectory of RCP 4.5 calculated using 11 regional climate models. As a result of the simulation for the period 2021−2050, average monthly values of the Surface Downwelling Shortwave Radiation "RSDS" (W/m2) are derived, on the basis of which the mean values for the period of time are calculated. For more detailed information, average monthly total cloud cover values "TC" (%) for the period under study are calculated.Analysis of the change in RSDS in 2021–2050 relative to the recent climatic period is shown that in the Laayoune − Sakia El Hamra region we can expect an increase or retention of its values. The annual run of the RSDS has one maximum in June and one minimum in December.In the future, the distribution of RSDS in the Laayoune − Sakia El Hamra region will have a significant impact on proximity to the Atlantic Ocean, where an increased amount of total cloud cover significantly reduces the amount of incoming radiation.In the location of solar power plants in the near future, the current RSDS values are expected to be maintained, which creates favorable conditions for the further development of the renewable energy industry in this area and increasing its productivity

К вопросу о новейшей историографии дореволюционной истории Киевского политехнического института

В статті зроблено спробу визначити основні тенденції в становленні й розвитку новітньої історіографії історії Київського політехнічного інституту в дореволюційний період (1898–1917 рр.).In this paper the problem of coverage of the Kiev Polytechnic Institute in prerevolutionary period in the recent period historiography. The problem of the origin and highlight the main achievements of the technical staff of the Kiev Polytechnic Institute in pre-revolutionary period shown on the basis of documentary and sources, works of a general nature. It is noted that in the recent period, new topics related to the initial period of the university. In these publications indicate that the learning process was the proper scientific and educational levels have developed and implemented technical professions to implement the latest developments unknown at the time fields of science. 1991–2015 is a significant revival of interest in the history Kyiv Politechnical Institute in 1898–1917. This is reflected in the increasing number of scientific papers, including master’s and doctoral dissertations on subjects of this kind, so devoted to the problems of conducting scientific conferences, publication of special scientific collections. This is largely explained by the change in historical research priorities when much more attention than in the previous period were paid ideological processes, the study of cultural background, man. The elimination of ideological and political constraints contributed to a wide range of views on issues of university history, contributed to «nationalization of history» — the fragmentation ever joint historical — cultural space. Among the signs of the times — the revival of journalism familiar to us from the late nineteenth — early twentieth century the conservative image of the university KPI. Some publicistic, which now can be found in the writings in general does not define the characteristics of the period. Innovations time also cause problems setting features a «national model» university that requires a deeper study of the relationship between the university and society. Accordingly, researchers have begun more attention to internal factors of the КPI, although today it is not enough.В статье предпринята попытка определить основные тенденции становления и развития новейшей историографии истории Киевского политехнического института в дореволюционный период (1898–1917 гг.)

Научное издание «КПІ: перше сторіччя. Історичний огляд» как источник о становлении Киевского политехнического института

У статті наведено історіографічний аналіз видання «КПІ: перше століття. Історичний огляд».The author based on modern scientific publication «КПІ: перше сторіччя. Історичний огляд» («KPI: The First Century. Historical Overview») provides historiography analysis of materials on the history of the Kyiv polytechnic institute establishment. The appearance edition is analyzed; the author describes the documentary and illustrative basis, mentions the incorrect dating of the first period listed building blocks of the first chapter.В статье приводится историографический анализ издания «КПІ: перше століття. Історичний огляд», проанализировано его содержание, выяснены научная ценность и роль издания в изучении этапа становления Киевской политехники как ячейки высшего технического образования

Increase housing provision of citizens as a priority direction of social and economic development of the region

Set out the results of the study provide citizens with housing as a priority direction of social and economic development of the market; showed the causes of low housing provision of citizens of the Belgorod region, made conclusions and identified measures to increase housing provision in the cities of RussiayesBelgorod State National Research Universit

A conserved phosphorylation site regulates the transcriptional function of ETHYLENE-INSENSITIVE3-like1 in tomato

ETHYLENE-INSENSITIVE3/ETHYLENE-INSENSITIVE3-like (EIN3/EIL) transcription factors are important downstream components of the ethylene transduction pathway known to regulate the transcription of early ethylene-responsive genes in plants. Previous studies have shown that phosphorylation can repress their transcriptional activity by promoting protein degradation. The present study identifies a new phosphorylation region named EPR1 (EIN3/EIL phosphorylation region 1) in tomato EIL1 proteins. The functional significance of EPR1 was tested by introducing mutations in this region of the Sl-EIL1 gene and by expressing these mutated versions in transgenic tomato plants. Transient expression data and phenotypic analysis of the transgenic lines indicated that EPR1 is essential for the transcriptional activity of Sl-EIL1. Moreover, mutation in the EPR1 site that prevents phosphorylation abolishes ethylene constitutive responses normally displayed by the Sl-EIL1-overexpressing lines. Bimolecular fluorescence complementation (BiFC) studies showed that the presence of a functional phosphorylation site within EPR1 is instrumental in the dimerization of Sl-EIL1 proteins. The results illuminate a new molecular mechanism for the control of EIN3/EIL activity and propose a model where phosphorylation within the EPR1 promotes the dimerization process allowing the initiation of EIL-mediated transcription of early ethylene-regulated genes