bluuebunny/crossref_metadata_2025_split huggingface dataset:
Ceramic-inorganic polymer composites for protection against electromagnetic radiation mechanical properties designing
Authors: Lebedev V V , Miroshnichenko D V , Kryvobok R V , Cherkashina A M , Riabchenko M O 
Published: November 2023

Abstract
The possibility of designing mechanical properties of ceramic-inorganic polymer composites for protection against electromagnetic radiation is considered. As a result, the mechanical properties of polymer composite based on polyamide, modified with ceramic-inorganic graphite-ferromagnetic fillers (silicon carbide, chromium oxide Cr2O3 and graphite) was received and optimized. The strength characteristics complex of ceramic-inorganic polymer composites with silicon carbide SiC, chromium oxide Cr2O3 and graphite content in diapason 5-15 % wt. were studied. It was established that the optimal strength characteristics can be received using binary modification of polyamide with ceramic-inorganic graphite-ferromagnetic fillers: polyamide 6 – SiC 10% wt. – Cr2O3 10% wt. and polyamide 6 – SiC 10% wt. – graphite 10% wt. Using mathematical modeling, it was established that the polyamide 6 – SiC 10% wt system is the most optimal for three-component complex modification with ceramic-inorganic graphite-ferromagnetic fillers – Cr2O3 10% wt. – graphite 10% wt. By design experimental-statistical mathematical models in equal regressions, mathematical optimization of mechanical properties of polymeric ceramic-inorganic composites contains for protection against electromagnetic radiation was carried out. Designed polymer ceramic-inorganic composites for protection against electromagnetic radiation according to their strength characteristics can be used for modern radio absorbing materials production.
Information provision for monitoring the sustainable development of the land and biodiversity
Authors: Chala T , Korepanov O , Lazebnyk I , Chernenko D , Korepanov G 
Published: November 2023

Abstract
The study is focused on gathering information to monitor sustainable land development and biodiversity. The article discusses the objectives and measures required to achieve Sustainable Development Goal 15 “Protect, restore and promote sustainable use of terrestrial ecosystems, sustainably manage forests, combat desertification, and halt and reverse land degradation and halt biodiversity loss”. This paper shows the results of the analysis of key indicators and values for Ukraine. It also contains the developed conceptual diagram for managing the sustainable development of ecosystems and biodiversity. There were identified the main sources of statistical information, including traditional enterprise-level data and big data, and analyzed changes in indicators for monitoring the achievement of the Sustainable Development Goals at micro level under section “Environmental area”. The study also identified potential sources of information for calculating the presented indicators and explored the use of big data to develop an information base for monitoring, evaluating, and policy development related to sustainable land development and biodiversity. Further research and studies are needed to determine the algorithms of data processing, modelling and constructing of integrated indicators.
Atmospheric dispersion modelling and dose projection under high uncertainty conditions
Authors: Artemchuk V O , Kyrylenko Y O , Kameneva I P , Kovach V O , Iatsyshyn Andrii V 
Published: November 2023

Abstract
Understanding the overall magnitude of the deviations that may occur within the results of one or more codes allows avoiding discrepancies in decision making in the context of emergency preparedness and response. The uncertainty of the assessment input data plays a significant role in this. Currently, emergency centers around the world use a number of atmospheric dispersion modelling and dose projection tools that have the same functionality, are used for the same purpose, but may produce different results. This article reveals the problem of uncertainty in the results of atmospheric dispersion modelling and dose projection, which are laid down at the stage of input data for actual software products and decision support systems. The paper lists the main factors that can affect the uncertainty of the assessment results. On the example of the JRODOS system, possible options for describing the source for the spectrum of emergency events at NPPs are considered. Special attention is paid to assimilation of radiation monitoring results and response to hostilities.
On the potential of Ukrainian higher educational establishments to satisfy the demand in personnel for renewable energy development
Authors: Zakharova O V , Usyk L M 
Published: November 2023

Abstract
Green energy is a key factor for achieving global sustainable development goals. Energy safety is the basic condition for any state to function and for any economy to grow. Moreover, stable supply of energy resources is a pre-requisite for supporting adequate life quality level for the population, which is the main function of a state. In this context, the problem of training specialists in green energy has become an object of an increasing research interest in many countries, including Ukraine. Ukraine has not been experiencing any specific problems with energy security since gaining independence in 1991, except for minor issues with natural gas supply. However, in autumn and winter of 2022, the necessity to reconstruct the Ukrainian energy safety system became specifically acute. The factor having caused the problem is of a man-made nature and was brought forth by the neighboring state’s military aggression. Russian military forces have been purposefully and methodically devastating the Ukrainian energy infrastructure with missile strikes over the past several months. Thanks to the technical and technological aid offered by partner countries and introducing emergency power outage schedules across the country, Ukrainian energy companies have managed to sustain the energy system in a relatively operational condition for three months by now. Nevertheless, we should envisage the future challenges and build a strategy for the post-war reconstruction of the Ukrainian energy system. Renewable energy sources have a colossal potential and may become a powerful force in the future development of Ukraine’s energy industry. However, in practice, the energy industry must be supplied with a sufficient number of highly professional specialists to realize this opportunity. On the example of Ukrainian HEIs, this article offers an example and a methodology for analysing higher educational establishments’ potential and preparedness to satisfy the predicted demand in personnel and to ensure sustainable development of the renewable energy market. Another finding of this research is the system of markers to measure the success of an educational programme in green energy which can be applied by educational institutions to build the programme enhancement strategy. Also, the authors define directions for perspective development of energy education in Ukraine.
Contradictions in electric power sector development: Ukraine versus EU
Authors: Khaustova V Y , Salashenko T I 
Published: November 2023

Abstract
Ukraine strives to be a full member of the EU and competitive in its market space, including energy markets. However, the UA electric power sector lags behind the EU common one. To prove this input-output model of electricity flows was constructed, Sankey diagrams were built, and qualitative indicators were determined. Based on the Eurostat dataset we found contradictions in Ukrainian electric power sector development against the European common one from 1991 to 2020. Mainstream trends in EU electric power sector development are decarbonization, development of highly efficient cogeneration, increasing energy efficiency at all stages, decentralization, increasing energy dependency, and all-round electricity penetration. At the same time, key tendencies in the UA electric power sector development were: gas-coal switching, reducing quality and quantity of cogeneration, stable too-low energy efficiency, centralization, isolation and self-sufficiency, and deindustrialization. Comprehending these contradictions determines the way for achieving sustainability in the UA electric power sector after the war.
Application of mining technology by the combination of ANSH equipment to longwall in Seam 6 of Mao Khe coal mine, Viet Nam
Authors: Tien Vu Trung , Mykhailenko O 
Published: November 2023

Abstract
Currently, in the Quang Ninh coalfield, exploiting the seams with medium thickness and dip angle of over 50 degrees is often difficult, so labor productivity and safety are low. It is necessary to research and apply advanced mining technology to medium thickness seams with dip angle of over 50 degrees in order to improve efficiency and safety. Studying the actual production in the Mao Khe coal mine shows that the mining technology for the condition of the seam with medium thickness, and dip angle over 50 degrees is mainly mining technology by drilling and blasting. This technology has the disadvantage of low labor productivity and unsafety. In this paper, the authors have researched and proposed mining technology by the combination of ANSH equipment to exploit the longwall in Seam 6 of Mao Khe coal mine. This is a fully mechanized mining technology, coal cutting by plow, combined with shield. Analysis of economic and technical indicators shows that this technology has been more effective and productive than the mining technology currently applied in other coal mines. This application will benefit not only Mao Khe coal mine, but also to other coal mines of Quang Ninh coalfield with similar coal seam conditions.
Prospects for the use of a vibratory jaw crusher with an inclined crushing chamber for processing of brittle materials
Authors: Franchuk V P , Fedoskina O V , Yu Svietkina O , Fedoskin V O , Yerisov M M 
Published: November 2023

Abstract
Obtaining a powder product from brittle materials is associated with significant difficulties: an insufficient number of production capacities as well as with their low efficiency. This indicates relevance and need for research aimed at creating new designs and technological schemes. Glass containers were selected for research from among all types of glass waste. Presented are a structural diagram and description of a horizontal pendulum impact tester, on which studies were carried out on destruction of a bottle by impact load. The impact tester gives an opportunity to determine impact energy, impact speed, acceleration, movement of the impactor. An analysis of the above figures shows that one blow is enough to destroy a bottle. Rational mode is when impact load is distributed along the length of the bottle. This mode can be implemented in a vibratory jaw crusher with an inclined crushing chamber, which includes the following main elements: a passive jaw located on shock absorbers, an active jaw pivotally mounted in the body and connected to it by means of elastic links, a two-shaft inertial vibration exciter. The presented granulometric characteristic of the crushed bottle shows a high efficiency of using a vibratory jaw crusher. The yield of the product sized less than 5.5 mm was 95%, and that sized less than 100 microns - 16%. The crusher has enough parameters to adjust particle size distribution over a wide range.
Implementation of sustainable development approaches by creating the mining cluster: the case of MPP “Inguletskiy”
Authors: Hryhoriev Y , Lutsenko S , Systierov O , Kuttybayev A , Kuttybayeva A 
Published: November 2023

Abstract
The article provides the basic foundations of the implementation of sustainable development approaches in the world society and their interpretation in mining activities. The study also analyzes the regulatory framework and organizational mechanisms for the implementation of these principles in the Ukrainian mining industry. An analysis of the current state of rational subsoil use and solid industrial waste management in Ukraine is given. The concept of a mining cluster and prospects for its formation in the region of the Kryvyi Rih iron ore basin are substantiated. An algorithm designed to optimize the schedule of mining operations in the mining cluster is described. The Ingulets iron ore deposit was analyzed from the standpoint of integrated development. The reserves of talc shale extracted from the open-pit and stored in a man-made deposit for further sale are separately allocated. The order of mining works for the development of man-made deposits is given.
Development of a method for clusterization of the dissipative structures
Authors: Zakharova L M , Merzlikin A V , Nazimko V V 
Published: November 2023

Abstract
The dissipative structure (DS) may follow irreversible processes, which occur in the open thermodynamic systems passing and transforming a sufficiently intensive flow of energy. DS can be detected as certain patterns of spontaneous organization in space and time. We consider the DS, which transposes during irreversible ground movement due to landslide or ground pressure manifestation. However, DSs may hide under stochastic noise that impedes their detection. We developed a new method for revealing of DSs in such a stochastic environment using a combination of k-mean clustering, Voronyi tessellation, and the optimal schedule of ground movement monitoring. The developed method has been successfully tested in the case of the irreversible ground movement in the vicinity of a longwall face.
Influence of the natural content of mineral impurities and moisture on the manifestation of hazardous properties of coal seams
Authors: Rudniev Ye S , Yu Tarasov V , Brozhko R M , Krapivnyi D I 
Published: November 2023

Abstract
It is not possible to determine the type of coal in terms of reducibility from thermal decomposition without access to air for volatile maters to dry ash-free mass, which provides establishing the ratio between oxygen content and other essential components of organic mass. The hazards of coal mine operations depend to a large extent on the ratio of the main components, both in organic matter and in mineral impurities. Methods for determining the yield of volatile maters make it impossible to assess the effect of the main components of organic matter and mineral impurities on the hazard characteristics of coal seams. The volatile maters index reflects only the sum of the thermal decomposition gases: hydrogen, methane, carbon monoxide and carbon dioxide without considering the ratio between them. The determination of the hazard properties of a seam in relation to metamorphic transformations factor should include a case-by-case examination of the relationship between the major components of fuel both the organic and mineral, including the moisture content, for each coal seams.
Geometrization of Kryvbas iron ore deposits
Authors: Peremetchyk A , Pysmennyi S , Chukharev S , Shvaher N , Fedorenko S , Moraru R 
Published: November 2023

Abstract
Mining and geometrical prediction of iron ore deposit quality indices to solve problems of long-term and current planning intended to provide the most efficient performance of mining enterprises in terms of ore blending quality and increase rationalization of deposit development is an important aspect of geometrization. Investigations carried out to develop a mining-geometrical method for predicting indices of iron ore deposit quality are topical nowadays. The present study aims to enhance the methodology for geometrization of iron ore deposit quality indices for developing a mining-geometrical method of their prediction to provide rational mining. The research methodology consists in mining and geometrical modeling of quality indices and properties of the deposit, thus enabling determination of a certain relationship between components of a mineral, and, thereby, identification of the nature of these components’ location in the mineral. The latter is essential in design, construction and operation of a mineral deposit. The obtained results allow predicting quality indices of the deposit, assessing mineral reserves and consequently planning and optimizing performance of mining enterprises. The developed methods enable increased efficiency of mining iron ore deposits of Kryvbas.
Recognition of mineralogical and technological varieties of iron ore on the basis of ultrasound backscatter spectrograms
Authors: Morkun V , Morkun N , Tron V , Serdiuk O , Bobrov Y , Haponenko A 
Published: November 2023

Abstract
The research is aimed to the analysis and modeling of the process of propagation of ultrasonic waves in iron ore samples to assess its mineralogical varieties. The paper analyzes domestic and foreign experience in modeling of ultrasonic waves propagation; methods of mathematical and computer modeling were used, as well as methods of mathematical statistics and probability theory for analysis of the results. Scientific novelty consists in developing and substantiating a method for recognizing the mineralogical and technological varieties of iron ore of a developed deposit based on spectrograms of a backscattered ultrasonic probing signal. Practical valueconsists in developing a methodology for non-contact non-destructive mineralogical analysis of iron ore to improve the efficiency and quality of its further processing and preparation for metallurgical processing. results. As measurable characteristic estimates of textural and structural features of iron ore varieties the results of spectral analysis of the reversed radiant ultrasonic signal were used. To implement the measurement results classification procedure, Adaptive Neuro-Fuzzy Inference System is used. At the vector of parameters of membership functions of terms of input variables and the vector of coefficients of linear functions in the conclusions of the rules was formed based on the characteristics of the processed ore and the spectrograms of the backscattered ultrasonic signal. The average accuracy of recognition of magnetite, chlorite-carbonate-magnetite, hematite-magnetite, magnetite-cummngtonite-chlorite-siderite mineral varieties of iron ore of the studied deposit was 93%.
Biotechnical approach for a continuous simultaneous increase of indoor and outdoor air quality
Authors: Tkachenko T , Mileikovskyi V , Konovaliuk V , Kravchenko M , Satin I 
Published: November 2023

AbstractPhytofiltration is the most sustainable way to achieve a better quality of inlet air in buildings in a polluted environment. But they don’t take into account the biorhythms of plants and pollute the inlet air with CO2during breathing only time. We collected and analysed data about the biorhythms of plants. As a result, a new bi-directional phytofilter was offered for cleaning and oxygenation of the inlet ventilation air, and also to protect the environment by cleaning the exhaust air from different pollutants. The device has spaces with shifted illumination rhythms and a valve system. A controller directs the inlet air to the space(s), where plants release CO2. The outlet air runs through other spaces. Literature data show that in the less favourable case, the CO2and oxygen emissions are balanced per day without overall CO2gain to the environment. When plants are growing, they sequestrate CO2to catch greenhouse gas emissions. Either natural light, artificial light, or a combination of the two can be used. While the second option simply demands one plant metabolism type, the first option needs a combination of CAM metabolism and other plants
Assessment of the hydrogeological and ameliorative state of the Kilchen irrigation system territory
Authors: Onopriienko D M , Makarova T K , Hapich H V 
Published: November 2023

Abstract
Climatic changes, physical and moral deterioration of the main funds of land reclamation systems in Ukraine prompt a change in conceptual approaches and reform of the water management system for efficient use of irrigated lands. One of the components of the agricultural hydrotechnical reclamation development is the provision of an appropriate level of ecological and reclamation status of irrigated lands and territories adjacent to irrigation systems (first of all, an open network of canals). The purpose of these studies is to assess the modern technical and hydrogeological-ameliorative state of the Kilchen irrigation system (total area of 35.3 thousand hectares) for a long period of operation of more than 50 years. The main research methods were field diagnostic surveys of the technical conditions of the main structures and elements of the irrigation system (open channels in the earthen channel). The trends of changes in climatic conditions of the territory over the last decade are analyzed. Analytical processing of the stock materials data and field observations of changes in the groundwater level, its chemical composition and mineralization in 24 observation wells along the main channel was carried out. The main chemical composition of groundwater in the research area is characterized as sulfate and sodium-calcium with total mineralization in individual areas from 0.6-0.9 to 1.7-3.5 g/l. According to the known methods of R.O. Bayer and V.A. Kovda calculations of the predicted change in the level and critical depth of groundwater have been performed. The established terms of change vary between 9-11 years, provided that irrigation is intensified and the irrigation system is fully operational. Based on the forecasting results, groundwater mineralization is expected to decrease from 3.5 g/l to 2.27 g/l between 2021 and 2029. It was determined that the level of groundwater above the calculated critical levels in different years occupies from 30.7 to 51.0% of the territory in the area of operation of the Kilchen irrigation system. The reclamation state of part of the irrigated lands in 2021 with a total area of more than 13.000 ha was distributed according to the following criteria: 12.000 ha – favorable, 1.200 ha – satisfactory, about 50 ha – unsatisfactory due to the manifestation of soil salinization processes. As of 2021, of the soils on an area of about 10.000 hectares that were studied, almost 8.500 hectares of soils are non-saline, more than 1.200 hectares are slightly saline, and about 50 hectares are moderately saline. For comparison, in 2003, all soils on the same area were non-saline, which indicates the deterioration of the ecological and melioratic state of the territory and the decrease in the quality of irrigation water.
Extraction of sulfur (IV) oxide, nitrogen oxides and carbon oxide from flue gases using a sorbent under conditions of its mechanical activation
Authors: Kudriavcev S O , Zubtsov Ye I 
Published: November 2023

Abstract
The paper substantiates the feasibility of creating an adsorption technology with controlled activation of the adsorbent for the removal of sulfur dioxide, nitrogen oxides, and carbon from the flue gases of coal-fired power plants. In laboratory conditions, the effect of mechanical activation on the adsorption capacity of ash was studied. It is shown that the controlled mechanical activation is able to increase the adsorption capacity of ash relative to sulfur dioxide by 2.7 times, to nitrogen oxides by 2.1 times, to carbon monoxide by 5 times or more.