bluuebunny/crossref_metadata_2025 huggingface dataset:
CONTROL OF METROLOGICAL CHARACTERISTICS OF HEAT METERS DURING OPERATION
Authors: Zaitseva O.O. , Cherednychenko S.V. , Hryshchenko Ye.M. , Iatsiuta O.I.
Published: May 2022

Purpose

The purpose of this article is to consider the features of calibration of single heat meters during operation.

Results of operation

Heat meters belong to the field of legally regulated metrology, as their measurement results are used in calculations between consumers and suppliers of heat for heating and hot water supply, so they are subject to periodic verification during operation and after repair. The so-called single heat meters have been widely used in the equipment of individual heat metering units for space heating. The peculiarity of single heat meters is that for them the error in measuring the amount of heat is normalized and experimentally determined without dividing it into the errors of the components. The physical quantities supplied to the heat meter inputs are reproduced тепло the heat carrier consumption and the heat carrier temperature. In this case, the water temperature in the flow unit corresponds to the ambient temperature, and the temperature in the thermostats to the temperatures in the supply and return flows. However, for heat meters based on ultrasonic method of washing the coolant flow with compensation of changes in the speed of ultrasound from the temperature of the coolant, this calibration technique cannot be applied due to a methodological error from replacing the variable speed of ultrasound with a constant value. To ensure the reliability of the verification results, a methodology was developed, according to which the verification is carried out in two stages. At the first stage, the error of the heat meter is determined when measuring the flow rate as the difference between the readings of the heat meter and the reference value of the flow rate reproduced by the spill unit. In this case, the temperature superheater of the heat meter is placed in a thermostat with a temperature equal to the temperature of the water in the pouring unit. This eliminates the methodological error from the temperature mismatch in the thermostat and in the pouring unit. In the second stage, the error of the heat meter is determined when measuring the temperature and calculating the amount of heat. In this case, the reference values ​​in the thermostats and the readings of the heat cell when measuring the consumption of the heat carrier are taken as the reference values ​​of the reproducible values. The total error of a single heat meter is defined as the sum of the errors obtained during the first and second stages of verification.

Conclusion Calibration of heat meters during operation contributes to obtaining reliable results of measurements of the amount of heat consumed in the housing stock, and the development on the basis of these results of measures aimed at the rational use of energy resources.
LOW CARBON ENERGY (REVIEW). 1. PROBLEMS AND FORECASTS
Authors: Basok B.I. , Baseyev Ye.T.
Published: May 2022

The problems associated with the implementation of the strategy of low-carbon development of the economy of the world and Ukraine are noted, ways to reduce the carbon intensity of the economy are outlined, a new scientific direction is formulated and initially developed to establish and improve the energy efficiency of industry and the construction and housing sector, including end-users-regulators, active consumers. The main attention is paid to the development of energy efficiency (the main and cheapest energy resource) and the development of renewable energy - two basic directions for achieving a global decarbonized economy. At the same time, a positive feature of Ukraine is the presence of powerful nuclear generation and obligations to integrate energy systems with European ENTSO-E and ENTSO-G. It is noted that carbon neutrality is one of the UN sustainable development goals, which must be achieved with careful miscalculations of possible scenarios, while maintaining a balance between global environmental problems and the national interests of countries. Therefore, there should be joint economic growth with the reformatting of the energy system based on intelligent "green" technologies and also ensuring the principles of social justice.
INFLUENCE OF SOIL FILTRATION PROPERTIES ON THE WORKING CHARACTERISTICS OF THE VERTICAL GROUND HEAT EXCHANGER
Authors: Basok B.I. , Davydenko B.V. , Novikov V.G. , Koshlak H.V. , Pavlenko A.M.
Published: May 2022

Introduction. The purpose of these studies is to determine the effect of the filtration properties of soil as a porous medium on the performance of soil heat exchangers. Ground heat exchangers are important elements of heat pumps widely used to extract low potential heat from ground masses. In the over whelming majority of scientific works related to the numerical modeling of the operation of ground heat exchangers, the soil is considered as a continuous medium and heat transfer in it occurs only by thermal conductivity. In reality, soil is a porous medium, the pores of which can be filled with air and liquid. In this regard, in addition to thermal conductivity, heat transfer in the soil can also occur by convection of liquids or gas in a porous medium.

Results. This paper presents the results of numerical modeling of the temperature regime of the soil U-tube heat exchanger, taking into account the free convective movement of the medium filling the pores of the soil. The system of equations describing this process consists of the equations of fluid dynamics in a porous medium and the energy equation. Attached to them is the heat transfer equation in a U-tube heat exchanger.

Based on the results of solving this system of equations, the distributions of velocity and temperature in the porous soil medium, as well as the change in the temperature of the heating agent in the heat exchanger, are determined. It has been determined that the maximum velocity of the free convection flow of water in the pores under the observed conditions is of the order of ~ 10-6 m/s.

Evaluation of the energy performance of the ground heat exchanger depending on the size of soil particles and its porosity showed that a larger volume of recoverable heat is provided with a smaller particle size and lower porosity. It is also shown that when the pores of the soil are filled with water, a larger volume of heat is extracted from the soil in comparison with the case of filling the pores with air.
Design and Experiment of a Prototype Electronic Control Unit Direct Injection Fuel System Arduino-Based for 2-stroke Spark Ignition Engine
Authors: Syaka Darwin Rio Budi , Purwoko Ade Tiya , Sopiyan Sopiyan
Published: May 2022

The development of technology on the 2-stroke direct-injection spark-ignition engine is expected to be a solution to optimize engine performance and reduce exhaust pollution. The fuel injection system in the operation of the spark-ignition engine is controlled by the Electronic Control Unit (ECU), so this study aims to design and experiment with a prototype of an Arduino-based direct injection fuel injection electronic control unit for 2-stroke spark-ignition engines. This research method begins with the design of an electronic control unit prototype that is selected for easy setup and low cost. Then, experiments were conducted on variations in injection timing and injection duration, which are the two main parameters of the fuel system to determine their effect on engine performance. This data is then used as a basis for setting the amount of fuel injected. The results show that there is an optimal performance under certain conditions from setting the injection timing and injection duration which is easily applied to the open-source code setting of this electronic control unit.
A Review on the Disposal Methods with Intrinsic Environmental and Economic Impacts of Scrap Tyres in Nigeria
Authors: Elehinafe Francis Boluwaji , Hassan Yebtemiya Judith , Ebong-Bassey Queen Eddidong , Adesanmi Adewole Johnson
Published: May 2022

The rapid increase in the amount of tyres discarded yearly leads to the problem of scrap tyres littering the country, Nigeria thereby leading to environmental pollution. This paper looks at the extent of the menace scrap tyres has caused, the methods of their disposal and the effects on the environment. The study calls for a concerted effort from researchers, industry operators and regulatory bodies to be up and doing in the disposal of scrap tyres in Nigeria to check the degradation of the environment in its three compartments: air, water and land, with a view to upholding environmental sustainability and embedded economic advantages.
The Effects of Sodium Hydroxide (NaOH) Concentration and Reaction Temperature on The Properties of Biodiesel from Philippine Tung (Reutealis Trisperma) Seeds
Authors: Supriyadi Slamet , Purwanto Purwanto , Anggoro Didi Dwi , Hermawan Hermawan
Published: May 2022

Philippine Tung (Reutealis trisperma) is an indigenous nut that is a relatively new feedstock for producing biodiesel in Indonesia. The nature of NaOH base catalyst and reaction temperature plays an important role in the method of biodiesel production. This study aimed to assess the effects of different percentages of NaOH base catalyst and reaction temperature on physicochemical properties of Philippine Tung biodiesel. Transesterification process was carried out by reacting Philippine Tung oil with methanol and NaOH catalyst. NaOH weight to oil weight was at 0.25%, 0.5%,0.75% and 1%, the reaction temperature set up were at 60°C and 70°C, while methanol-oil molar ratio was set at 6:1. Yield, acid value, saponification value, density, and viscosity of biodiesel were significantly influenced by NaOH catalyst concentrations. Meanwhile reaction temperature had no effect on the yield and viscosity. Philippine Tung biodiesel produced using 0.25% NaOH catalyst met the SNI 04-7182-2015 biodiesel standard of the properties investigated in this study (yield: 96.18%, acid value: 0.466 mg KOH/g, saponification value: 200.083 mg KOH/g, density: 0.889 g/mL, viscosity: 5.276 cSt).
Body City Car Design of Two Passengers Capacity: A Numerical Simulation Study
Authors: Putra Randi Purnama , Yuvenda Dori , Setyo Muji , Andrizal Andrizal , Martias Martias
Published: May 2022

A city car is needed to overcome congestion and parking spaces in urban areas. However, currently, the body design of the city car is still experiencing problems, namely the value of the large drag coefficient, which causes an increase in fuel consumption. This study aims to design a city car body with two passengers that is more aerodynamic so as to minimize fuel use. This research method is a numerical simulation model using the ANSYS fluent students version 2021. Parameters in the form of drag coefficient values, velocity streamlines and velocity contours on the city car are aerodynamic aspects that are analyzed. The results show that the dimensions of the designed city car have a length of 2.59 m, a width of 1.6 m, and a height of 1.52 m by considering the ergonomic parameters and comfort of the user so that it fits the character of the people in Indonesia. In addition, from the independence grid analysis performed, the value of the number of meshes that have the smallest error value is obtained, namely mesh C (the number of meshes is 129,635). Mesh C has an error of 7.2%. It was found that as the velocity increases, the value of the drag coefficient (CD) produced is relatively smaller. In a city car with a velocity of 10 m/s, the drag coefficient value is 0.599, at a velocity of 20 m/s, the drag coefficient value is 0.594, and a velocity of 30 m/s is a drag coefficient value of 0.591.
The Effect of Ethanol on Brake Torque, Brake Specific Fuel Consumption, Smoke Opacity, and Exhaust Gas Temperature of Diesel Engine 4JB1 Fueled by Diesel-Jatropha Oil
Authors: Syarifudin Syarifudin , Fatkhurrozak Faqih , Sanjaya Firman Lukman , Yohana Eflita , Syaiful Syaiful , Wibowo Agus
Published: May 2022

The growth of diesel vehicles has consequences for the consumption of diesel oil. Therefore, using Jatropha as an alternative fuel reduces dependence on diesel oil and it does not interfere with food availability. However, the high viscosity of jatropha oil makes the fuel pump work harder. In addition, the low calorific value reduces the quality of the fuel which creates unique problems. Ethanol, with its low viscosity and high oxygen content, is expected to be effective in reducing jatropha problems for diesel engines. Therefore, this study aims to evaluate the addition of ethanol to the brake torque, brake-specific fuel consumption, exhaust gas temperature, and smoke opacity. The 4JB1 diesel engine with an EGR was tested on a 10% (DJ10) and 20% (DJ20) diesel-jatropha mixture. The experimental results showed that brake torque increased by 1.51% in the DJ10 application, brake specific fuel consumption decreased by 7.05%, exhaust gas temperature decreased by 0.67%, and smoke opacity increased by 25.91%. While in the DJ20 application, brake torque increased by 3.19%, brake-specific fuel consumption decreased by 30.08%, exhaust gas temperature decreased by 0.67%, and smoke opacity increased by 69.03%.
Ultrastructural changes in the digestive system during the metacercarial development in Diplostomum pseudospathaceum (Trematoda: Digenea: Diplostomidae)
Authors: Podvyaznaya I.M.
Published: May 2022

Ultrastructural organization of the foregut and intestinal caeca was investigated in the developing and mature metacercariae of Diplostomum pseudospathaceum. The features of metamorphosis were found in the development of the metacercarial caeca and oral sucker. It is suggested that metamorphic character of the development of the metacercarial gut may be related to peculiarities of the structural specialization of the free living larvae. In D. pseudospathaceum metacercariae, the functions of the gut are discussed.
Three new feather mites of the sbfamily Pterodectinae (Acari: Proctophyllodidae) from passerines (Aves: Passeriformes) in Vietnam
Authors: Mironov S.V. , Tolstenkov O.O.
Published: May 2022

Three new species of the feather mite family Pterodectinae (Protophyllodidae) are described from passerines captured in the Cat Tien National Park (Vietnam): Montesauria malacopteroni sp. nov. from Malacopteron cinereum Eyton (Pellorneidae), Proterothrix cyornis sp. nov. from Cyornis tickelliae Blyth (Muscicapidae), and P. hypothymis sp. nov. from Hypothymis azurea Boddaert (Monarchidae). Brief comments on systematics of the pterodectine genera Montesauria Oudemans, 1905 and Proterothrix Gaud, 1968 are given.
A new species of the genus Phytodietus Gravenhorst, 1829 (Hymenoptera: Ichneumonidae: Tryphoninae) from Mexico
Authors: Kasparyan D.R. , Khalaim A.I.
Published: May 2022

In the subfamily Tryphoninae, a new species Phytodietus (Neuchorus) enriquei sp. nov. is described from Tamaulipas Province of Mexico. The new species differs from all other Neotropic and Nearctic species of the genus by the combination of white postmedian ring on antennae and pale fulvous metasoma.
On Hygia opaca (Uhler), H. lativentris (Motschulsky) and H. obscura (Dallas) (Heteroptera: Coreidae)
Authors: Kerzhner I.M. , Brailovsky H.
Published: May 2022

The following new synonymy is established: Hygia opaca (Uhler, 1860) = H. japonica Ahmad, 1969, syn. n., H. lativentris (Motschulsky, 1866) = H. touchei (Distant, 1901), syn. n. Hygia opaca opaca sensu Ahmad, 1969 is a misidentification of H. lativentris (Motschulsky, 1866), the latter species does not belong to the subgenus Microcolpura. The records of H. obscura (Dallas, 1852) from Korea and China are considered mistakes.
Types of interaction between rocks of Achimov sequence and Bazhenov formation
Authors: Laptey A. G.
Published: May 2022

Many fields in the northeastern part of Surgut oil and gas region were discovered in 1960s-1970s. Currently, because to the development of reserves of large deposits of simple structure the restoration of the resource base and maintenance of the production level of oil and gas producing organizations are the main tasks. Its implementation is possible due to the development of new territories, increasing the depth of prospecting drilling, additional exploration of deposits of complex structure.Residual reserves of deposits in the studied area are confined to Achimov sequence and reservoirs in anomalous section of the Bazhenov formation.The article considers the types of deposits in Achimov sequence with normal and anomalous structure of Bazhenov formation. The author proposes a classification of oil deposits in the fondoform part of clinoforms. This classification clearly shows the possible relationship between Achimov sequence and the underlying bituminous deposits of Bazhenov formation.Some deposits associated with reservoirs in anomalous section of the Bazhenov formation may be missed targets; therefore, additional exploration is required. Since the reservoirs of Achimov sequence and anomalous section of the Bazhenov formation have different properties, it is necessary to differentiate them when planning geological and technological measures to extract oil.
Using the approach of step-by-step lithological dissection of the section of volcanogenic sedimentary deposits
Authors: Smolyakov G. A. , Gilmanova N. V. , Boronin P. A. , Sivkova A. V.
Published: May 2022

The article implements an approach of step-by-step lithological dissection of the section of volcanogenic sedimentary rocks of the Sredne-Nazymskoye field using comparisons of methods of geophysical surveys of rocks at the qualitative and quantitative level.The predominantly acidic composition of the rocks determines the use of unified petrophysical algorithms for the section of the Pre-Jurassic complex with additional division into enlarged groups of lithotypes: lavobreccia, tuffs and unchanged effusions. An important factor influencing the interpretation of geophysical surveys is the presence of rock fracturing in the Pre-Jurassic complex interval.The assessment of the possibility of lithological dissection of the section, taking into account the additional division of rocks into collector-non-collector, which allows us to identify promising zones of development of pore and fractured reservoirs.We propose an approach of step-by-step lithological dissection of the section, including qualitative and quantitative criteria, which ensures the improvement of existing technologies.
The Politics of Islamic Death Rituals in the COVID-19 Era
Authors: Moonakal Nadeem Ahmed , Sparks Matthew Ryan
Published: May 2022

Throughout the Islamic world, the era of COVID-19 has witnessed controversial changes to highly ritualised traditional Islamic funeral rites. To combat the pandemic in Egypt, the government and Al-Azhar implemented restrictions surrounding group prayer and burial which many Egyptians viewed as impinging on their religious duties as well as on their ability to mourn. Utilising participant observation, interviews, and deductive research, this article explores the social and anthropological ramifications involved in the modification of traditional Islamic burial rituals in the era of COVID-19 and the negotiations involved amongst different actors, looking specifically at cases in Egypt.
‘Pilgrimage of the Poor’
Authors: Al-Ajarma Kholoud
Published: May 2022

Pilgrimage destinations other than the Ka’aba in Mecca are a contested subject amongst Muslims. For the Moroccan ‘poor’, who are unable to perform the Meccan pilgrimage, a local pilgrimage known as the Hajj al-Miskin or the ‘Pilgrimage of the Poor’ is performed as an alternative spiritual journey. In this article, I discuss this pilgrimage at two sites in Morocco. Approaching Islam as a lived religion, I discuss how Moroccans navigate between religious considerations and the realities of everyday life. I argue that the Pilgrimage of the Poor plays a key role in the lives of the pilgrims at both the individual and community level. The debate about the Pilgrimage of the Poor reveals how different groups of Muslims negotiate their positions with respect to different interpretations of the global discursive tradition of Islam, applying these interpretations within their local context.
Reports
Authors: Wellman Rose , Klimburg Max
Published: May 2022

Marjo Buitelaar, Manja Stephan-Emmrich and Viola Thimm (eds), Muslim Women’s Pilgrimage to Mecca and Beyond: Reconfiguring Gender, Religion, and Mobility (London: Routledge, 2021), 213 pp.

Erika Friedl, Religion and Daily Life in the Mountains of Iran: Theology, Saints, People (London: I.B. Tauris, 2021), xix + 178 pp.
Editors' Note
Authors: Haklai Oded , Mendelson-Maoz Adia
Published: May 2022

We are appreciative of the supportive feedback we received on our inaugural issue as editors. The positive response to the roundtable on COVID-19 has been heartening, bolstering our commitment to bring forth scholarly forums and debates from multiple disciplines on the most pertinent issues facing Israeli society. We would like to encourage further involvement of our readers. Please send us ideas regarding themes for forums, roundtables, and special issues. Moreover, a short commentary section, in the form of “letters to the editors,” will be introduced in an upcoming issue. This new section will allow academic comments on articles that have been published and thus facilitate scholarly debate on current research.
Book Reviews
Authors: Waxman Dov , Bar-Yosef Eitan , Sherzer Adi , Silberstein Abraham , Nikolenyi Csaba
Published: May 2022

Nir Kedar, David Ben-Gurion and the Foundation of Israeli Democracy (Bloomington: Indiana University Press, 2021), 253 pp. Paperback, $35.00.

Naphtaly Shem-Tov, Israeli Theatre: Mizrahi Jews and Self-Representation (London: Routledge, 2021), 202 pp. Hardback, $128.00.

Mira Sucharov, Borders and Belonging: A Memoir (London: Palgrave Macmillan, 2021), 183 pp. Paperback, $44.99.

Lori Allen, A History of False Hope: Investigative Commissions in Palestine (Stanford, CA: Stanford University Press, 2020), 432 pp. Paperback, $30.00.

Yael S. Aronoff, Ilan Peleg, and Saliba Sarsar, eds. Continuity and Change in Political Culture: Israel and Beyond. (Lanham, MD: Lexington Books, 2020), 257 pp. Hardcover, $105.00.
New Media as Tool of Hybrid War Fare and Impact on Optimistic Thinking of Pakistani Nation
Authors: Rehman Komal , Ashraf Imran
Published: May 2022

The optimism is the state of being cheerful or hopeful about the future and about the world around. Optimism is defined as watching the bright side of a future to come. It involves ignoring the factors like demoralization, anxious feelings about future that involves over thinking, negative outcomes etc. Human beings foresee the effects in positive and negative ways. People who are positive in their approach regarding thinking, behavior and affects are always optimistic. Optimism is linked with precise cooperating style, ambition framing and constructive affect. Optimists demonstrate interest to positive information and show active engagement and trouble solving type behaviors. Optimists tend towards goal commitment, where the aim is to achieve the end result. Freedom and diversity are the optimistic version of the tendency for media to have a fragmenting effect on society that can also be liberating. The media spread new ideas and encourage mobility, change and modernization.
Роман Умберто Еко «Ім’я троянди» та новела «Вавилонська бібліотека» Хорхе Луїса Борхеса: текст і прототекст
Authors: Журба С. С.
Published: May 2022

У дослідженні здійснено прочитання новел «Вавилонська бібліотека», «Книга піску», «Пошуки Аверроеса» Х.Л.Борхеса крізь текст роману У.Еко «Ім’я троянди». Значна увага у статті приділяється символіці Книги та образу Бібліотеки, яка розглядається в контексті борхесівської ідеї «всесвітньої бібліотеки»
С. Жадан - виразник національної ідеї в епоху другого модерну
Authors: Онікієнко І. М.
Published: May 2022

У статті висвітлюється творчість С. Жадана як одного з яскравих представників української літератури епохи Другого модерну, яку маркують потреба створення нових принципів і правил міжнародного порядку, вироблення етики глобальної відповідальності та відродження національної ідеї, підкріпленої основними християнськими цінностями. Представлено художню специфіку відображення у поетичній збірці «Життя Марії» образів гібридної війни на Сході України та мирного населення.
The performance aspect of choral pieces analysis at individual classes for choral conducting
Authors: Бондаренко Анжеліка Володимирівна
Published: May 2022

A choral conducting training is performed at the faculties of culture and arts which train the students in music and teaching specialties. Different types of choral texture are studied in the process of the individual work of a teacher with a future teacher of music at the classes of "choral conducting", where students are taught great amount of pieces of music of different epochs, styles and genres. It includes the consideration of choral texture components and their specific characteristics and theme functions aimed at presenting the timbre and vocal-technical reserves for the choral sections in the system of musical and artistic techniques, as well as at the search of the unused reserves in the idea and intonation structure of a choral music piece.
Topicality of dichotomous approach in professional education of future music teachers in higher education establishments of Ukraine
Authors: Бондаренко Анжеліка Володимирівна
Published: May 2022

Summary. For music pedagogical education the issue of the quality of an educational environment for higher education establishment (further HEE) has always been the focus for researchers. There fore, there is a necessary for the development of the pedagogical thought in the countries of the European Union, considering the state of affairs in Ukraine. The course of the academic process for students and the implementation of the humanitarian principles stipulate the essential functioning of HEE. These two components specify the quality level for functioning higher education establishments. The researchers consider it differently, from the conditions of the social environment and the quality of education to the issue of satisfaction of students demands. The great importance is understanding of the contradictions arisen from the process of the problem analysis. There is also the need to take into account the desire of students for self-expression in the course of academic process by means of the creative interaction with other participants of the process. The involving of future music teachers in the creative presentations requiring their creative self-expression plays an important role in the process of their training. For this purpose the HEE teachers use the works of music arts that contribute to solving the above-mentioned problems which arise not only in acquiring and improving students professional knowledge and skills, but also promoting the development of their communicative skills. In our research we also considered the needs of students for the creative process of their professional development. Young people are seeking their own way, which they will go in the future. The main purpose of the professional education of future teachers is obtaining of professional skills. The important factor in implementing the dichotomous approach to the process of training future music teachers is understanding of this process as a unique one, which implies the coexistence of such objects as a student and a social environment of HEE. Such a differential way of academic activity predetermines the dichotomous distribution in the lerning process. In order to optimize the ecademic environment, it is necessary to study the types of dichotomy, namely bipolarity, symmetry, ambipolarity, antonymy, antinomy. It should be noted that understanding of the essence of the social environment in the higher education establishment contributes to the quality of professional education for the students. The implementation of the dichotomous approach improves the efficiency of the academic process for the HEE future teachers. It also facilitates the achievement of harmony in a definite social environment. Based on the concept of social nature of man as the basis for the music pedagogical education, this article confirms the topicality of the dichotomous approach for the professional education of future teachers in the higher education establishment.
Основні принципи диригентсько-хорового навчання
Authors: Бондаренко Анжеліка Володимирівна
Published: May 2022

Диригентсько-хорове навчання майбутніх учителів музики здійснюється під час фахового навчання у ВНЗ. Стаття присвячена обґрунтуванню принципів диригентсько-хорового навчання: принцип доступності, принцип взаємозв’язку диригентських засобів, принцип домінуючої ролі диригентсько-технічних вправ, принцип раціонального використання мінімальності й масштабності диригентських рухів, принцип свободи й природності диригентського жесту, принцип спірально-сконцентрованого пошуку творчих орієнтирів.
Simulating Systems for Advanced Training and Professional Development of Energy Specialists in Power Sector
Authors: Gurieiev Viktor , Kutsan Yulii , Iatsyshyn Anna , Iatsyshyn Andrii , Kovach Valeriia , Lysenko Evgen , Artemchuk Volodymyr , Popov Oleksandr
Published: May 2022

The crisis of the system of professional development and personnel training in the energy sector exists not only in Ukraine but also all over the world. The article describes the concept of development and functioning of the industry system of personnel training in the energy sector of Ukraine. The importance of using modern web-oriented technologies to improve the skills of operational and dispatching personnel in the energy sector of Ukraine is substantiated. The meth- ods of distributed power system operating modes modelling are presented. De- velopment and software tools for the construction of distributed simulating sys- tems and particular features of cloud technologies application for the creation of a virtual training centers network in the energy sector, as well as the ways to automate the process of simulating scenarios development are described. The ex- perience of introducing remote training courses for energy specialists and remote web-based training simulators based on a comprehensive model of the energy system of Ukraine is presented. An important practical aspect of the research is the application of software and data support for the development of personnel key competencies in the energy sector for rapid recognition of accidents and, if necessary, accident management. This will allow them to acquire knowledge and practical skills to solve the problems of analysis, modelling, forecasting, and monitoring data visualization of large power systems operating modes.
Development and Using of a Virtual Laboratory to Study the Graph Algorithms for Bachelors of Software Engineering
Authors: Striuk Andrii , Rybalchenko Olena , Bilashenko Svitlana
Published: May 2022

The paper presents an analysis of the importance of studying graph algorithms, the reasons for the need to implement this project and its subsequent use. The existing analogues analysis is carried out, due to which a list of advantages and disadvantages is formed and taken into account in developing the virtual laboratory. A web application is created that clearly illustrates the work of graph algorithms, such as Depth-First Search, Dijkstra’s Shortest Path, Floyd- Warshall, Kruskal Minimum Cost Spanning Tree Algorithm. A simple and user- friendly interface is developed and it is supported by all popular browsers. The software product is provided with user registration and authorization functions, chat communication, personal cabinet editing and viewing the statistics on web- application use. An additional condition is taken into account at the design stage, namely the flexibility of the architecture, which envisaged the possibility of easy expansion of an existing functionality. Virtual laboratory is used at Kryvyi Rih National University to training students of specialty 121 Software Engineering in the disciplines “Algorithms and Data Structures” and “Discrete Structures”.
Demand and Learning Environment to Provide English-Language Learning at Technical Universities in Ukraine
Authors: Konovalenko Yurii , Garkavenko Svitlana , Derkach Tetiana , Morgulets Oksana
Published: May 2022

The paper aimed to study the readiness of the existing e-learning environment for the organisation of English-language learning among Ukrainian and international students on the example of a technical university in Ukraine. The need for English-language training was explored by interviewing students with keen interest, level of English proficiency, motivation, preferred forms of learning, and a willingness to incur additional costs for such learning. About two-thirds of those surveyed showed interest in English-language education. About one-third of the students surveyed have the necessary level of preparation and are also prepared for additional financial expenses. About one- third of the students may also join English-language studies if they fulfil specific prerequisites. Expected employment progress is the primary motivation for joining the English-language program. The readiness of the existing learning environment was tested by analysing the organisation of access to English- language teaching materials, assessing the demand for different electronic resources, as well as the ability to take into account the learning styles of potential Ukrainian and international students in the educational process.
The impact of COVID-induced shock on the risk-return correspondence of agricultural ETFs
Authors: Kaminskyi Andrii , Nehrey Maryna , Rizun Nina
Published: May 2022

Risk-return correspondence for different investment asset classes forms one of the pillars of modern portfolio management. This correspondence together with interdependency analysis allows us to create portfolios that are adequate to given goals and constraints. COVID-induced shock unexpectedly generated high uncertainty and turmoil. Our paper is devoted to the investigation path through shock by agricultural assets (presented by ETFs) in comparison with traditional assets. There were identified three time periods: before the shock, explicitly shock, and post-shock. At the explicit shock period was suggested estimation risk frameworks on the pair indicators: falling depth and recovery ratio. Basic attention focuses on comparison risk-return estimations prior to shock and post-shock. To this end was considered four approaches to risk measurement and were applied to the sample of agricultural ETFs. The results indicated differences in risk changing by the path from before shock to post- shock. Differences arise from choosing the approach of risk measuring. The variability approach reveals much growth of risk of traditional assets, but the Value-at-Risk approach indicates higher risk growth for agricultural ETFs. Combine together with relatively low correlation these estimations provide a clear vision of risk-return frameworks.
Творча діяльність Миколи Самокиша в контексті культурно-мистецького життя Полтавщини та Харківщини кінця XIX - початку XX ст
Authors: Петренко Ольга Олегівна
Published: May 2022

Мета роботи полягає в осмисленні творчої діяльності Миколи Самокиша у світлі соціокультурних взаємодій доби національного українського відродження, визначенні особистого внеску митця до розвитку національного стилю в мистецтві як визначного явища української художньої культури кінця XIX - початку XX ст. Методи дослідження. Методологічну основу дослідження складають загальнонаукові принципи, на яких ґрунтуються сучасні дослідження культурно-мистецької спадщини. Застосовано теоретичний, культурологічний, аналітичний, мистецтвознавчий, порівняльний методи для досягнення означеної мети дослідження. Наукова новизна. У статті вперше комплексно досліджено феномен творчості М. Самокиша в дискурсі українського “національного романтизму” як концептуального та культурно-мистецького напряму кінця XIX - початку XX ст. з урахуванням регіональної специфіки.
Художественно-выразительный язык живописных полотен Н. Самокиша, посвященных теме гражданской войны (в контексте развития советской батальной живописи 20-40-ых гг.)
Authors: Щербакова (Петренко) Ольга Олегівна
Published: May 2022

В статье осуществлена попытка проанализировать художественно-выразительный язык живописных полотен Н.Самокиша в батальном жанре одного из наиболее плодотворных периодов его творческого пути.
The Impact of the Korean and Vietnam Wars on US Foreign and Domestic Politicy
Authors: Nadtochey Yuriy
Published: May 2022

The article compares the two most significant military conflicts of the Cold War era, the Korean War and the Vietnam War, in terms of their impact on US domestic and foreign policy. To this end, they are analysed on eight key parameters (objectives of the war, changes in foreign policy concepts, economic consequences of the war, public opinion, etc.). Unlike numerous studies on the impact of the US on Asian regions and nations, the main thrust of this study is to focus on the reverse impact of the Korean and Vietnam Wars, namely on the ways these conflicts affected the domestic affairs of the US and altered its foreign policy behaviour.
The empirical base for the study encompasses declassified White House and Pentagon papers, memoirs of American presidents, public opinion polls, as well as extensive research literature. The authors conclude that, although the war on the Korean Peninsula was one of the hottest points of the Cold War and had a serious impact on the social and political life of the country, it has in fact turned out to be a “forgotten” event in American history. By contrast, the Vietnam War, although it had a significant impact on the public consciousness of Americans, was on the whole largely a local conflict, failed to substantially change the international situation, and could not impede the policy of détente in international relations, which was essential for both the USA and the USSR.
The Hanoverian Question and Prussian Foreign Policy in the Early Nineteenth Century (1801–1806)
Authors: Sterkhov Dmitrii
Published: May 2022

This study explores the significance of the Hanoverian Question for Prussian foreign policy in the early nineteenth century. The author looks at the origins of the Hanoverian Question and analyses Prussian motives for annexing Hanover in the first part of the article. Special attention is paid to the relationship between Prussian foreign policy and Prussian domestic stability. The political system in Prussia was severely unbalanced by the capture of vast swathes of Polish territory to the east, populated mostly by Catholics. To restore the balance, the Prussian state badly needed a German-speaking and Evangelical province to the west, and only the Electorate of Hanover met these requirements. The Hanoverian Question went hand in hand with the neutrality policy pursued by Prussia between 1795 and 1806. After the unsuccessful occupation of Hanover in 1801, Prussian King Friedrich Wilhelm III committed himself solely to the peaceful annexation of the Electorate, which had to be recognised internationally, above all by France, Great Britain, and Russia. Forced to manoeuvre between Napoleon and the Anti-French Coalition, Prussia eventually gained possession of Hanover, but found itself at war with both Great Britain and France. Thus, the delicate Hanoverian Question paved the way for the War of the Fourth Coalition of 1806–1807, which ended in Prussia's worst defeat. One can conclude that Prussia failed to resolve the Hanoverian Question satisfactorily, yet this diplomatic setback was instrumental in changing Prussian foreign policy. After 1806 Prussia finally abandoned its policy of neutrality and manoeuvring appeared more willing to use force to achieve its goals.
Foreign Observers of the Russian Political Crisis: The Case of the Interregnum of 1825
Authors: Belousov Mikhail
Published: May 2022

The article examines the events of the Russian interregnum, which preceded the Decembrist revolt, as a phenomenon of European politics, as it focuses on analysing the reports and reasoning of foreign diplomats on the development of the dynastic crisis and the struggle between the Grand Dukes Nicholas and Constantine. These communications, on the one hand, determined the discussion of the Russian crisis in the press and could be used to interpret it. On the other hand, the study of this segment of the information field makes it possible to determine fairly accurately the motivation that European public opinion attributed to Constantine's actions and his bizarre behaviour in November–December 1825. This study takes a different approach to interpreting the logic of an event that shook the European continent than previous historiographical works have done. Drawing on a wide range of archival and published sources, as well as the French press which dominated European political discourse at the time, the author demonstrates that the key issue before Russia and Europe in the crisis in question was the possible emergence of an independent Polish state under the sceptre of one of the Romanovs.
Isabelo de los Reyes and the Beginning of the Labour Movement in the Philippines
Authors: Damier Vadim
Published: May 2022

The article focuses on the activities of the Filipino publicist, ethnographer, public, religious and political figure Isabelo de los Reyes (1864–1938). For the first time in Russian historiography, drawing upon de los Reyes' own works, it highlights his role in the movement for Philippine independence from Spain, in the formation of the labour movement, and in the initial dissemination of socialist ideas in the archipelago. A talented and prolific journalist, he rose to prominence among the progressive “ilustrados” - the educated class in the Spanish colony of the Philippines - at a very young age. Arrested by the colonial authorities after the outbreak of the 1896 anti-colonial rebellion, de los Reyes was exiled to Spain. While in prison in Barcelona, he was influenced by left-leaning fellow prisoners – anarchists, syndicalists and socialists. He was greatly impressed by his acquaintance with socialist literature. After his release from prison in 1898, de los Reyes took part in the activities of the Philippine emigration and the campaign against the capture of the Philippine Islands by the United States. In 1901 he returned to his homeland, bringing with him the works of anarchist and socialist theorists and propagandists, to which he introduced the country's leading labour activists. In 1902, at their request, he helped organise the Unión Obrera Democrática (UOD), which emerged as the first trade union association not only in the Philippines but also in the whole of Southeast Asia. At that time De los Reyes held socialist views, incorporating elements of Christian socialism, anarchism, and reformist syndicalism. He also initiated the creation of the Philippine Independent Church. After a major wave of strikes in 1902, de los Reyes was arrested by the US authorities in the Philippines and resigned as head of the UOD. After his release from prison, he published the organ of the labour movement, the newspaper “La Redención del obrero”. In the following years, de los Reyes withdrew from the trade union movement, focused on topics related to the Philippine Independent Church, and then became actively involved in political activities, being elected municipal councilor and senator.
France in Search of a Foothold in Post-Gaddafi Libya
Authors: Sidorov Alexander
Published: May 2022

Historically, Libya was not part of the French sphere of interest and influence, the core of which was traditionally Francophone Africa. Since the fall of the Gaddafi regime in 2011, security issues in the countries of the Sahara - Sahel region have become particularly important for France. The article is preceded by a brief historical account of Franco-Libyan relations up to and after the fall of the Gaddafi regime, when the situation within and along the Libyan borders deteriorated and became a matter of growing concern in France and internationally. The relevance and novelty of this study lie the examination of the French attitude towards the Libyan crisis in close conjunction with the need for forceful counter-terrorism actions and security measures in the Sahelю The aim is to analyse the evolving situation in the region, identifying the motivation for and the nature of France's actions in and around Libya, as well as in the context of a future post-conflict settlement. In writing the article, the author relied on historical-genetic and historical-analytical methods, drawing on national and international monographs, articles published in academic periodicals, and official documents of international organisations. He concludes that France had limited resources and capacity to stabilise Libya. He argues that the involuntary reliance on Khalifa Haftar as a fulcrum for security in southern Libya, the border areas, and for reducing the projection of the terrorist threat into the Sahara-Sahel region was unwarranted. It is also demonstrated that France has critically underestimated the potential of other influential parties to the current Libyan crisis, which, in the circumstances, has reduced its ability to influence the intra-Libyan and regional balance of power.
Mary Todd Lincoln in the White House: an Ordeal of the Power
Authors: Alent'yeva Tatiana
Published: May 2022

The article focuses on the White House activities of Mary Todd Lincoln, the wife of the 16th American president. Her personality is still controversial in American historiography. She was a bright and remarkable person, well educated, fascinated by politics, which was not typical for a woman in the 19th century. Mary exerted considerable influence on her husband, urging him to become president and supporting his policies to preserve the Union. Her family was tragically divided by the Civil War, with six of her relatives supporting the Union and eight fighting on the Confederate side. She approved of Lincoln's decision to abolish slavery, even though she was a Southerner by birth and came from a slave-owning family. The harsh conditions of the Civil War required the First Lady to perform public duties, particularly visiting the wounded. She did so willingly, but she paid little attention to self-promotion, which was a significant political miscalculation since the Lincoln family's activities were constantly under attack by the Democratic press and secret Southern sympathisers. The press seldom published information presenting her in a more positive light. Her poor health, the death of close family members in the war, the passing away of her son, and her mental instability prevented her from fully exercising her duties as First Lady. She failed the test of power. Still, her activities were an attempt at a woman's intervention in the sphere of male politics, challenging the accepted social norms of her time.
The Turkestan Political Émigré Community: Its Influence on the Foreign Policy of the Turkish Republic and the Soviet-Turkish Relations in the 1920s
Authors: Pylev Aleksander
Published: May 2022

In this article the author examines the historical circumstances of the formation of the Central Asian (Turkestan) political emigrant community in the territory of the Republic of Turkey in the first half of the 1920s, as well as its political activities aimed at organisational and ideological unification and attempts to gain political support from the Turkish leadership. The study draws on memoirs, reminiscences, and published notes of prominent representatives of the Turkestan emigration (both in Russian and Turkish), collections of documents published in the USSR, as well as recently declassified archival materials covering the foreign policy of Soviet Russia and neighbouring countries. Despite the cultural and ethnic affinity and pan-Turkic convictions of some members of the Turkish political leadership, Turkey provided only limited assistance to representatives of the Turkmen anti-Soviet emigration. Consequently, emigrant groups and associations were forced to seek political support from Eastern European governments. The author concludes that it was futile to encourage the creation of independent political entities on Soviet territory solely by supporting local anti-Soviet protests from abroad. The viability of such entities required internal objective conditions.