bluuebunny/crossref_metadata_2025 huggingface dataset:
CUSTOMER PERCEPTION ON SERVICE QUALITY IN THE HOSPITALITY SECTOR WITH A FOCUS ON HOTELS IN ABEOKUTA, NIGERIA
Authors: ISIAKA Muideen Adejare , ADEOSUN Oluyemi Theophilus , SANNI Oladapo Michael , ISIAKA Rukayat Kikelomo
Published: April 2024

The hotel industry is largely dependent on service quality and customer satisfaction for continuous and efficient growth. The main aim of this research is to determine how perceptions of service quality have influenced hotels' operations in determining customer loyalty and satisfaction. To this end, a sample of 148 customers was drawn from the hotel industry in Abeokuta in south-west Nigeria. The study used a 5-point Likert scale questionnaire that ranges strongly agree (5) to strongly disagree (1). Different tests such as demographic analysis, descriptive and reliability test were applied to achieve the objective. The variables employed are tangibility, reliability, responsiveness, confidentiality, communication, sociability/valence, and waiting time. The results clearly show that customers only have a low satisfaction level about the quality of hotel industry services, with an average score of 2.69. The study recommends that the managers and all hospitality service providers provide enough functional and technical quality, which most consumers consider before using such services repeatedly. This is because exclusive customer experiences increase customers' intention to promote firms through Word of Mouth (WOM). The study leverage first-hand data in the hospitality sector of Abeokuta.
Pathways for improving water governance in Western Algeria: A multi-stakeholder analysis
Authors: Houar Khaled , Fetoui Mondher , Bellal Sid Ahmed
Published: April 2024

The aim of this study is to assess the relationships between the main stakeholders involved in water management in Sidi Bel Abbes city (western Algeria) to establish pathways for good governance, fair allocation and sustainability of water resources. A multi-stakeholder analysis was performed using the MACTOR method (method of actors and power relations) to analyze stakeholder strategies, alliances, and potential conflicts regarding water management. Data for the study were collected mainly during multi-stakeholder workshops with 6 main stakeholders who are directly involved in managing potable water. A field survey of 329 local households was conducted with the use of supplementary questionnaires. This study proposes that the power dynamics among actors should be considered during the decision-making process to improve collaborative interactions and the effectiveness of stakeholders engaged in water management. The research findings show that the stakeholder’s roles and strategies should be coordinated and strengthened to ensure equitable allocation of water. Technical public agencies deploy management strategies that do not consider water quality as a priority, and they are more concerned with other strategic objectives. Additionally, the stakeholders disagree on many issues relating to water management due to overlapping and conflicting powers, which threatens the quality and availability of water resources. The study also demonstrated that the National Sanitation Office could play an important role as a relay stakeholder and that the Hydrographic Basins Agency should strengthen alliances and commitments with all stakeholders. Enhancing the participation of these stakeholders in water management procedures and empowering domestic water end users, particularly in densely populated residential areas, could help bridge divides and foster a unified approach to achieving sustainable water management objectives.
What drives Chinese technology imports into Africa? A regional perspective
Authors: Cieślik Ewa , Anna Zamojska
Published: April 2024

Motives: The factors that affect technology imports from China have never been examined in the literature, and this study was undertaken to fill in this knowledge gap. The factors that drive high-tech imports from China to Africa, including those that negatively impact imports, were identified. The results can be used to implement changes in the trade strategies of African countries, including industry 4.0 strategies or trade agreements with China, and to influence the behavior of companies importing high-tech from China.Aim: The primary goal is to identify the factors that influence technology transfer, in particular the transfer of electronic and electrical technologies, in the areas of high-tech manufacturing. The second goal is to determine whether these factors have equal strength and direction of influence on different streams of technology transfer.Results: The study demonstrated that both economic and geographical factors influence technology transfer, defined as two streams of high-tech manufactures: electronic and electrical, as well as other high-tech manufactures. However, the two import streams behaved differently, and different factors affected Chinese imports into Africa.
Zakaz dyskryminacji w systemach prawnych: polskim i czeskim – w aspekcie relacji pracowniczych
Authors: Ziółkowska Krystyna
Published: April 2024

The subject of this study is a comparative legal analysis of the issue of the prohibition of discrimination in the Polish and Czech legal systems. The topic is still valid due to the phenomenon of discrimination among employees in the workplace. The phenomenon of discrimination is multidimensional, and its complexity causes many problems for entities interpreting the provisions in this field. Aspects related to discrimination are not and will not be an easy topic, especially since they concern delicate and sensitive aspects also related to human dignity, including the right to privacy. In employee employment, first of all, employees should be treated equally in terms of the manner of establishing and terminating an employment relationship, employment conditions, professional qualifications, and in particular aspects related to political beliefs, trade union membership or religion. In the first part, issues of a general nature will be presented, primarily those relating to international and European regulations regarding the principle of equality and the prohibition of discrimination. In the further part of the article, the topic of anti-discrimination provisions under Polish and Czech law will be raised and legal solutions in this matter will be presented.
Bibliografia zawartości czasopisma „Civitas et Lex” (2014-2023)
Authors: Guzewicz Wojciech
Published: April 2024

The magazine “Civitas et Lex” (p-ISSN 2392-0300; e-ISSN 2449-5522) was established as a quarterly in 2014. It is published by the Publishing House of the University of Warmia and Mazury in Olsztyn under the auspices of the NATO DEEP program and in cooperation with an international research team CEDICLO. During the ten years of publication of “Civitas et Lex”, a total of 40 issues of the journal were published (4 issues each year) and 346 texts in five sections (From the Editor – 51, Scientific articles – 241, Glosses – 8, Reports – 6, Reviews – 40).
INVESTIGATION OF PATTERNS OF WEAR OF SURFACES OF CONNECTION "SHAFT-SLIDING BEARING"
Authors: Zhuravlov Yu.I. , Melnik A.A. , Kostyuchenko Ye.F
Published: April 2024

Problem statement and its connection with important scientific or practical tasks. The search for technical solutions aimed at improving the reliability of connections of parts of ship's technical means (STM) is a topical issue in the design and operation of ship systems. The necessary level of safety and reliability is laid down at creation of ship knots and units, in the course of operation only support of the parameters set at designing due to the correct maintenance and repair that is connected with time and financial expenses is possible. One of the ways to increase the reliability of joints of STM parts is to increase their service life by increasing their wear resistance. There is a lot of research work aimed at improving the anti-wear properties of the surfaces of the connection "sliding bearing", their geometry, materials and technologies of their manufacture. Design experience shows that changing the profile of the contact surfaces several hundredths of a millimeter changes the contact planes and pressures by 2 ÷ 5 times and significantly affects the distribution of internal force factors. The purpose of this study is to determine the patterns of wear of the surfaces of the connection "shaft-sliding bearing". [1] Key words: ship technical means, microgeometry of a surface, frictional fatigue, connection "shaft-sliding bearing", radius of curvature of a wave.
THE NATURE OF DECISIONS OF THE EUROPEAN COURT OF HUMAN RIGHTS AND THEIR SIGNIFICANCE AS SOURCES OF LAW
Authors: CHYZHOV Denys
Published: April 2024

The article is devoted to the study of the nature of judgments of the European Court of Human Rights and their significance as a source of law in the context of Ukraine. The case law of the European Court of Human Rights establishes new rules and regulations that may differ from and supplement national civil regulations. This case law, as well as the Convention for the Protection of Human Rights and Fundamental Freedoms, is considered an important source of civil law and is binding on national legal systems. As a result, it becomes an integral part of national civil law, or, more precisely, its "living organism". The activities of the European Court reflect not only the European legal experience, but also influence the very evolution of the legislation of the countries party to the Convention. Particular attention is paid to the analysis of how the case law of the European Court is embodied and used in the national legislation of Ukraine and how other legal scholars perceive this influence. The legal specificity of the judgments of the European Court of Human Rights attracts the attention of many legal scholars. All this is due to its unique role as a supranational jurisdictional body with the exclusive right to interpret and apply the Convention for the Protection of Human Rights and Fundamental Freedoms, as well as the specifics of the legal systems of the Council of Europe member states, where the law combines both continental and Anglo-American types of legal systems. Taking into account the special status of the European Court of Human Rights, there are discussions in the national legal science on the interaction between national legislation and the Court’s precedents, with a special emphasis on determining their legal nature. An important issue is the possibility of considering the judgments of the European Court of Human Rights as precedents and the possibility of implementing case law in Ukraine.
SPECIFICS OF POLICE PARTICIPATION IN THE OPERATION OF THE PERMIT SYSTEM DURING MARTIAL LAW
Authors: YUNIN Oleksandr
Published: April 2024

The research highlights the approaches of researchers and the normative definition of the concept of the permit system, its main elements in the context of participation in its functioning by the National Police of Ukraine. It is indicated that the permit system can be considered in a broad and narrow sense. Also, the permit system is a certain permit procedure that regulates the actions of various participants in social relations; this is a specific activity of state authorities regarding the implementation of control over compliance with special rules on the permit system; the permit system is a means of ensuring the realization by individuals and legal entities of specific rights to objects that are in limited use. The article also emphasizes that the administrative services of the National Police of Ukraine in the field of permit activity are a component of the provision of police services, which include control over compliance by individuals and legal entities with the rules provided for by the permit system (weapons storage, etc.). It is emphasized that during the state of war, the authority of the police to issue permits for the purchase, storage and carrying of hunting weapons became relevant and important for repelling the armed aggression of the russians, and another important area of police activity was the accounting of firearms, especially in the de-occupied territories. The article emphasizes that in the conditions of martial law, in order to repel the armed aggression of the russian occupiers, the procedure for obtaining a permit for citizens to purchase, store and carry hunting rifled, smooth-bore weapons and cartridges was liberalized. At the same time, the main feature is that such liberalization, which consists in reducing the documents required for obtaining a permit, stops after the end of martial law, since it will still be necessary to submit the entire necessary package of documents to the authorized bodies in order to obtain a permit.
Політика та механізми забезпечення ефективності освітньої діяльності в університетах України в контексті євроінтеграції та в умовах воєнного стану і післявоєнного відновлення країни
Authors: Бородієнко Олександра , Вітренко Юрій , Воробйова Оксана , Ворона Вікторія , Дебич Марія , Кущенко Олег , Паламарчук Ольга , Слюсаренко Олена , Таланова Жаннета , Ткаченко Вероніка , Таланова Жаннета
Published: April 2024

Монографію підготовлено за результатами виконання третього етапу наукового дослідження за темою «Політика та механізми забезпечення ефективності освітньої діяльності в університетах України в контексті євроінтеграції та в умовах воєнного стану і післявоєнного відновлення країни» колективом вчених відділу забезпечення якості вищої освіти Інституту вищої освіти НАПН України. У роботі представлено механізми забезпечення ефективності освітньої діяльності в університетах, використовуючи результати аналізу провідного вітчизняного та зарубіжного досвіду, зокрема визначено критерії і показники ефективності, а також підходи до формування політики щодо ефективності освітньої діяльності в контексті євроінтеграції та в умовах воєнного стану і післявоєнного відновлення України, що охоплюють управлінський, економічний, нормативно-правовий, міжнародний, програмно-освітній, інформаційно-цифровий, дослідницько-освітній, викладацький виміри освітньої діяльності. Упровадження монографії сприятиме залученню розробників освітньої політики, науковців, викладачів і аспірантів до міжнародного досвіду щодо забезпечення ефективності освітньої діяльності та його застосування в університетах України в контексті євроінтеграції та в умовах воєнного стану і післявоєнного відновлення країни. Видання буде корисним для розробників освітньої політики, дослідників, керівників, викладачів і здобувачів вищої освіти закладів вищої освіти викладачів, а також інших зацікавлених осіб.
Development of Dual-Core Spun Yarn Using Different Filaments as a Core and its Impact on Denim Fabric Properties
Authors:   Department of Textile Engineering Management, Bangladesh University of Textiles, Dhaka-1208, Bangladesh, Habib Ahsan , Olgun Yağmur ,   Department of Textile Engineering, Engineering Faculty, Cukurova University, 01250 Bacali/Adana, Turkey, Babaarslan Osman ,   Department of Textile Engineering, Engineering Faculty, Cukurova University, 01250 Bacali/Adana, Turkey
Published: April 2024

Consumer preferences for comfortable and well-fitting clothing have led to an increased demand for yarns (elastic) in denim fabric production. The study focuses on the manufacture of yarns (dual core) with various core components including T400® (Polyethylene terephthalate) / poly trimethylene terephthalate), PBT (Polybutylene terephthalate), Polyester (PES), and elastane (Lycra®) and their impact on denim fabric properties. The study involves the production of Ne 18/1 yarns (dual core) using an adjusted spinning method (ring) with elastane and different filaments in the core and additionally, twill (3/1 ‘Z’) fabric (denim) is manufactured using those yarns, and then fabric and yarn characteristics are evaluated. The results show significant variations in fabric and yarn characteristics based on the type of core material used. The yarn properties, such as the neps (+200), strength, thin place (-50), hairiness, elongation %, unevenness %, and thick place (+50) of yarns (dual core) are affected by the selection of filament. Fabric properties like weight, elasticity %, strength (tensile), strength (tearing), shrinkage %, and stiffness exhibit differences depending on the core filament. The statistical analysis employs one-way ANOVA to investigate the significance of differences in yarn and fabric properties within various core materials. The outcomes of this experimental work contribute valuable understandings of the production of yarns (dual core) with several filaments for enhancing fabric (denim) performance.
ТЕХНОЛОГІЯ ПРОФІЛАКТИКИ ОНІХОМІКОЗІВ
Authors: КАЧАН РОМАН
Published: April 2024

The work investigated the problem of preventing the occurrence of onychomycosis. The need to disinfect various materials of a person with mycosis: shoes, socks, clothes, surfaces, sanitary equipment and other materials that can be infected with pathogens of mycosis, in order to minimize re-infection and infection of family members, was substantiated. Currently, on the Ukrainian market of means for the prevention of mycosis, mainly disinfectants are used, which are toxic and have a negative effect on treated surfaces. Thus, there is an urgent need to create an effective, safe means for disinfecting shoes and other materials and surfaces that may be infected with onychomycosis pathogens. The tool should be universal, suitable for processing all surfaces and materials. A significant number of active substances belonging to cation-active surfactants have pronounced fungicidal properties, do not have a negative effect on materials and surfaces, and are safe for humans. Therefore, when creating a disinfectant against onychomycosis, a number of substances related to cationic active surfactants were studied. It was established that the most optimal active component of the new disinfectant is didecyldimethylammonium chloride. On the basis of this substance, a tool and technology for the prevention of onychomycosis was created. Also, nonionic surfactant - ethoxylated alcohol was added to the product. It enhances the fungicidal effect of the disinfectant and gives it a cleaning ability. This property is quite an important component of the disinfectant. First, dirt interferes with the effective action of the biocide, accordingly, the latter is inactivated. Secondly, if there is a small amount of dirt on clothes and shoes, after fungicidal treatment, it will be enough to rinse it with running water so that the clothes and shoes become clean.
DETERMINING THE WEIGHT OF OIL EXTRACTED WITH A SCREW PRESS USING A STRAIN GAUGE SENSOR, HX711 MODULE, AND ARDUINO
Authors: HAVRAN VOLODYMYR
Published: April 2024

This research presents an automated system for quantifying oil extracted from a screw press, leveraging a strain gauge sensor and HX711 module in synergy with the Arduino platform. This innovative setup measures the target mass of extracted oil, wherein the collected data is further processed by an Arduino microcontroller. User-defined measurement parameters, such as specific oil mass, dictate when the system terminates the screw press operation.
Hitting the set oil mass triggers the Arduino microcontroller to halt the press, allowing for the conservation of raw materials and energy, and consequently ensuring product quality consistency. Conversely, if the desired mass value remains unreached, the extraction continues until fulfillment of target outcomes. This approach optimizes press use, manifesting in maximum efficiency and selectivity in the production process. It demonstrates how such a control system can automate measurement and production supervision, thus fostering optimal screw press operation.
The article suggests the solution for integrating Arduino, HX711 module, and strain gauge sensor to measure the weight of the oil extracted through the screw press. The strain gauge and HX711 module were programmed within the Arduino Integrated Development Environment, enabling the accurate measurement of extracted oil mass and data transference to the Arduino controller. A housing bracket 3D model for the strain gauge and HX711 module within the existing screw press was also created using 3D modelling and subsequently printed and implemented. This aids reliable sensor fitting and ensures system stability for oil mass measurement.
This study demonstrates the potential for implementing this advancement within pre-existing press infrastructures with minimal changes. Our methodology offers prospective enhancements in quality and efficiency, notably within the oil production domain.
ПРОБЛЕМАТИКА ВИКОРИСТАННЯ БЕЗПРОВІДНИХ СЕНСОРНИХ МЕРЕЖ У ВІЙСЬКОВИХ ЦІЛЯХ
Authors: МИХАЛЕВСЬКИЙ ДМИТРО , ШАПОВАЛОВА ТЕТЯНА , СУХОТЕПЛИЙ ВЛАДИСЛАВ , ЛУЦЕНКО ОЛЕКСІЙ
Published: April 2024

The article analyzes wireless sensor networks and identifies their advantages and disadvantages when used for military purposes. It is proposed to consider the architecture of the network based on a four-level model, which consists of the level of sensors, data channels, data processing and applications for creating various types of services. This creates a versatile and effective set of instruments for solving various tasks of special purpose for military purposes. The structure of a wireless sensor network for military use is considered in detail, taking into account the variety of sensors and their purpose. It also emphasizes the importance of compact and efficient sensors for military purposes, which contain means of digital information processing, receiver and transmitter, including measurements of electromagnetic waves, light, pressure, sound. The possibility of creating sensor fields based on unmanned aerial vehicles and their use for security and information gathering is noted. Data link parameters are detailed, including signal strength and signal level at the receiving end. The importance of space scanning radars for ensuring the safety of unmanned aerial vehicles in the conditions of wind speed and obstacles is noted. The article points out the problems of energy and computing resources when using sensors, in particular, the limitation of energy consumption and the length of the information transmission channel. Methods of rationalizing energy consumption by aggregating data and using clustering protocols are proposed. The main idea of the article is that the use of wireless sensor networks for military purposes requires attention to architectural details, sensor selection and power consumption optimization to ensure effective and reliable use of this system for its intended purpose, which will lead to the successful completion of the task by the unit. Therefore, the main advantages include the simplicity and flexibility of deploying sensor fields and the prompt receipt of information directly from the contact line, which is the key to a quick response to the enemy's actions.
КОНТРОЛЬ ТЕМПЕРАТУРИ ЗЕРНА В МЕТАЛЕВИХ СИЛОСАХ ПРИ ТРИВАЛОМУ ЗБЕРІГАННІ
Authors: СОКОЛОВСЬКА ОЛЕНА , ВАЛЕВСЬКА ЛЮДМИЛА
Published: April 2024

The temperature of grain in storage is a complex process determined by the interaction of various factors. It is important to establish effective monitoring and management systems to ensure optimal storage conditions and avoid negative consequences such as spontaneous combustion or product spoilage.
Grain temperature plays an important role in maintaining its quality during storage. Temperature control is a key element to avoid problems such as spontaneous combustion, fungal and bacterial growth, and to ensure optimal storage conditions. Grain thermometry is an important part of monitoring grain storage and processing conditions in elevators and warehouses. Temperature plays an important role in maintaining quality and avoiding problems such as self-ignition. Various factors can affect the change in grain temperature during storage: climatic conditions, grain moisture, location of thermometers, grain condition, storage period, seasonal changes, level of ventilation, etc.
Proper management of these factors is important to maintain grain quality and prevent potential problems such as spontaneous combustion or mold growth. We conducted a study of temperature changes in the formed layers of grain during its storage in metal silos. The influence of natural conditions and the location of silos on the storage of grain was established and recommendations were given for its storage in metal silos. Special attention should be paid to the contact zones with the surface of the grain embankment and the zones adjacent to the walls of the slurry, they are the most sensitive to temperature changes. The air temperature in the silo affects the temperature of the upper layers of the grain mass, which are in direct contact with it.
When the ambient temperature rises, the air temperature in the silo rises, because the metal surfaces of the silo have high thermal conductivity.
АРХІТЕКТУРА ОЗЕРА ДАНИХ, ДЛЯ ГАЛУЗІ ОСВІТИ
Authors: ПРИШЛЯК АНДРІЙ
Published: April 2024

An overview of the work and research of scientists in the context of big data, and in particular data lakes, was conducted. The lake is primarily considered as a certain repository for further data analysis. The data lake model focuses on the concept of what information needs to be stored, rather than what data is actually needed or what its purpose is. The existing methods of organizing the architecture of the data lake, both on the basis of basic and modified ones, based on the use of various possibilities related to graphs, semantic networks, and ontologies, have been worked out. Such approaches form functionally oriented models of architectures, as well as the possibility of creating new hybrid architectures with specialized metadata management tools. Metadata includes working with data and objects at different levels of detail. The granularity is strongly related to the concept of data lakes, most often in the aspects of data recognition of different entities. Metadata itself is information about the data and processes that the data lake collects and requires separate management mechanisms. In recent years, several such mechanisms have been introduced that focus on categorization or list metadata management functions, or a combination thereof. The work presents the results of the analysis of the field of education at all stages of the educational process. The characteristics and features of each stage of the educational process are provided and data repositories are built, for a better understanding of each of them and the construction of the data lake architecture. A model representing the possible stages of the educational process and the data directly related to them was built. The concept of a complete portrait of the characteristics of the student of education, which should provide information about him, based on the completed stages of the educational process, including both formal and informal education, is introduced. A formal representation of the educational data lake is presented, describing the main elements that should be included in the architecture model. A model of the architecture of the lake of educational data, a description of its components and functional levels has been formed. Analyzed data organization techniques to improve analytics and memory optimization using columnar data format and Spark tools.
ОЦІНЮВАННЯ РІВНЯ ЕНЕРГОЕФЕКТИВНОСТІ АВІАЦІЙНИХ ПІДПРИЄМСТВ ТА АВІАЦІЙНОГО ТРАНСПОРТУ ДЛЯ ПІСЛЯВОЄННОГО ВІДНОВЛЕННЯ УКРАЇНИ
Authors: БОЙКО СЕРГІЙ , ВИШНЕВСЬКИЙ СВЯТОСЛАВ , ШОКАРЬОВ ДМИТРО , ПОЛІЩУК ПЕТРО , ГВОЗДІК СТАНІСЛАВ
Published: April 2024

The article emphasizes that the question of researching the place of air transport in the aspect of multimodal transportation in the aspect of the post-war reconstruction of Ukraine is relevant. An analysis of the pre-war dynamics of the development of the transport industry of Ukraine is presented, which showed the insufficient level of development of the transport infrastructure and the organization of transport operations for both the transit country. Directions and approaches to the implementation of elements of a multimodal transport system using air transport are presented. It is proposed for further implementation on the territory of Ukraine, the schemes of multimodal transportation with the involvement of air transport, which are popular in the world practice. The proposed directions for the use of air transport in relation to cargo transportation in the aspect of multimodal transportation in the conditions of Ukraine have been determined. The study identifies the peculiarities of the integration of air transport into the transport system during the post-war reconstruction of Ukraine. For the development of aviation transport in the context of the development of transportation on the territory of Ukraine, it is necessary first of all to determine the strategic directions of the post-war development of the transport industry of Ukraine and potential resource opportunities for their solution. A method of increasing the energy efficiency and reliability of the power supply of aviation enterprises is proposed, which will allow performing a high-quality reconfiguration of the existing energy networks of aviation enterprises and performing a high-quality design of new modern infrastructure networks of the aviation industry.
TWO-CHANNEL BALLISTIC TRANSFORMER GRAVIMETER
Authors: BEZVESILNA OLENA , NECHAI SERGEY , TOLOCHKO TETIANA , GRYNEVYCH MARIIA
Published: April 2024

The two-channel ballistic transformer gravimeter for measuring the doubled value of the acceleration of gravity contains a gravimeter that uses a fixed glass tube made of a dielectric material, a magnetized test body in the form of a layer, a computer and an inductance winding, which is characterized by the fact that the fixed tube is made of a dielectric material, the inductance winding acts as a primary excitation winding connected to the power source, which additionally contains two identical sections of the secondary output winding, connected in series-opposite, to create two measurement channels, an electromagnet consisting of an armature made of magnetic material, an additional winding connected through a switch to an additional power source. To provide free vertical movement in two opposite directions along the OZ axis of the magnetized test body, it is proposed to use the proposed electromagnet consisting of an armature made of a soft magnetic material, an additional winding connected through a switch to an additional power source. The winding of the electromagnet is connected to the power source by a switch to create an electromagnetic flux of attraction to the test body, which, thanks to this, will rise to the uppermost position. At the next moment, the electromagnet switch is turned off, and the test body falls down under the action of the acceleration of gravity. The doubled output signal of the acceleration of gravity, which is removed from the secondary winding, is free from the effects of interference: external electromagnetic flows, inertial vertical acceleration, instrumental errors caused by changes in temperature, humidity, vibrations, pressure, the moment of dry friction forces, non-identity of the parameters of two identical sections of the secondary output winding and other factors - is submitted to the computer. The output of the computer is proportional to twice the acceleration of gravity value. Increased accuracy and reliability of measurements of the doubled value of the acceleration of gravity and increased efficiency of the search for minerals have been ensured
ДОСЛІДЖЕННЯ ЕФЕКТИВНОСТІ ВИКОРИСТАННЯ PNN ДЛЯ РОЗВ’ЯЗАННЯ ЗАДАЧ МЕДИЧНОЇ ДІАГНОСТИКИ В УМОВАХ АНАЛІЗУ МАЛИХ ДАНИХ ВИСОКОЇ РОЗМІРНОСТІ
Authors: ГАВРИЛЮК МИРОСЛАВ , ГОВДИШ НАЗАРІЙ
Published: April 2024

Parkinson's disease is one of the illnesses that cause certain difficulties at the stage of diagnosis. Recently, there has been a tendency to increase the popularity of the use of artificial intelligence methods as an auxiliary diagnostic tool. A probabilistic neural network (PNN) has become widely used for solving problems in the field of medicine. Despite the rather high efficiency of its use for certain tasks, some aspects of its functioning remain insufficiently researched in practice. Existing scientific works do not pay due attention to the issue of using the optimal distance as a measure of similarity between objects. Calculating the distance between the current data vector and each reference sample vector is the first step in implementing a PNN. The classification accuracy of a neural network of this type depends on its efficiency. In this work, the effectiveness of using different distances in the algorithm of different implementations of a probabilistic neural network for detecting Parkinson's disease based on biomedical voice indicators in the case of small high-dimensional data was investigated. Experimental modeling of three different variants of PNN implementation was carried out using the following distances: Chebyshov, Manhattan, Minkowski, cosine, and Canberra. The results of the study showed different values of the F1-measure when applying different distances. It was found that the use of the Euclidean metric in the structure of a probabilistic neural network is not always the best option. In particular, the application of non-Euclidean metrics provided a significant increase in accuracy for the analyzed dataset. This indicates the need for correctly selecting this parameter of the probabilistic neural network to obtain the highest accuracy when solving medical diagnosis problems.
ШЛЯХИ РОЗВИТКУ МЕТОДІВ ГАЗОТЕРМІЧНОГО НАПИЛЕННЯ ДЛЯ ПОКРАЩЕННЯ ЕНЕРГОЕФЕКТИВНОСТІ РЕМОНТУ МАШИН АПК
Authors: АНІСІМОВ ВІКТОР , ГУНЬКО ІРИНА , БУРЛАКА СЕРГІЙ
Published: April 2024

The authors of the article consider the problems of energy consumption during the repair of agricultural machinery and propose ways to solve them through the improvement of gas-thermal spraying.
The paper analyzes modern technologies of gas-thermal spraying and identifies key aspects that affect the energy efficiency of this process. In particular, the use of the latest materials, optimization of spraying parameters and introduction of automated control systems are considered.
The authors of the article consider in detail the advantages and disadvantages of existing methods of gas thermal spraying, highlighting problematic issues related to energy consumption and low productivity. On the basis of this analysis, specific ways of development and improvement of methods aimed at increasing the energy efficiency of gas-thermal spraying in the repair of agricultural machines are proposed.
In particular, the article considers the possibility of using the latest energy-saving technologies, the introduction of renewable energy sources and the optimization of equipment operation processes. The prospects for the application of intelligent management and monitoring systems, which will contribute to the optimal use of energy resources, are highlighted.
This article serves as an important contribution to the understanding of the problems of energy efficiency of gas-thermal spraying in the repair of agricultural machinery and determines directions for further research and the implementation of innovative approaches in the restoration of agricultural machinery.
STUDY OF THE SOIL CONDITION OF RECLAIMED AREAS AFTER ILMENITE MINING IN ZHYTOMYR POLISSIA
Authors: SHOMKO OLHA , DAVYDOVA IRYNA
Published: April 2024

The article investigates the physical and mechanical composition of the soils of reclaimed areas after ilmenite mining in Zhytomyr Polissia, in particular, the granulometric composition and moisture content of the soils of the reclaimed areas of the Irshansk Mining and Processing Plant. It also identifies soil types by their fractional composition. To carry out the research, 7 test areas were laid out: a control area undisturbed by mining, a dump of topsoil, a site after technical reclamation, and 4 sites after biological reclamation. In order to study the dynamics of reclaimed soil restoration, we selected sites reclaimed at different times. To determine the influence of tree species on the effectiveness of reclamation, we studied sites with plantations of Pinus sylvestris and plantations of Pinus sylvestris and Betula pendula reclaimed at the same time. For all the studied areas, we determined the granulometric composition of the soil by wet and sieve methods, and soil moisture content. The results of the study showed that the soils of the reclaimed areas are mostly sandy, sandy loam and clay loam. These soils are characterized by low water retention properties and low nutrient content. The study also indicated a correlation between the topography of the studied plots and moisture levels as well as the content of fine fractions in the soil.
The research revealed that soils in the areas disturbed by open-pit mining are undergoing significant transformations, which has a negative impact on their forest vegetation potential. To restore this potential, it is necessary to carry out high-quality technical and biological reclamation using modern advanced methods. To improve the effectiveness of reclamation of disturbed areas, it is beneficial to apply mineral and organic fertilizers, plant nitrogen-fixing plants, and add biochar to the soil fertile layer at the stage of levelling of the area.
PECULIARITIES OF MULTISPECTRAL IMAGE LOSSY COMPRESSION
Authors: ZRIAKHOV MYKHAILO , KRYVENKO SERGII , ЛУКІН ВОЛОДИМИР
Published: April 2024

This paper concerns some aspects of lossy compression applied to six-component Landsat multispectral images where all component images have identical spatial resolution. It is shown that most component images are correlated although the cross-correlation coefficients for component images vary in rather wide limits – from 0.11 in one dataset and 0.72 in another dataset to almost unity in both cases.  Compression based on discrete cosine transform is considered where 2D blocks have the size of 32×32 pixels. Embedded deblocking after decompression is applied as well. Lossy compression can be applied component-wise and in a 3D manner for spectral decorrelation of data where 6-point discrete cosine transform is applied. It is shown that, in the latter case, a significantly larger compression ratio can be achieved. The attained benefit in CR is about 30-80% compared to the component-wise compression or, alternatively, the benefit in peak signal-to-noise ratio can reach a few dB for the same compression ratio. The coders are studied for peak signal-to-noise ratio varying in the limits from about 23 dB to about 46 dB that correspond to image quality starting from annoying to practically invisible distortions. In addition, there are some image pre-processing operations that are able to further improve the compression ratio. They are image normalization and band re-ordering. All possible variants of band ordering are studied for both test images. The impact of band ordering on compressed image quality is analyzed in terms of rate/distortion curves for the 2D and 3D versions of the considered coder. It is demonstrated that, due to optimal ordering, a few % improvement of CR can be gained. However, the optimal band order for the considered multichannel images is not the same and this can cause problems in practice to be studied in the future.
ВИКОРИСТАННЯ МЕТОДІВ НЕЛІНІЙНОЇ МЕХАНІКИ ПРИ ДОСЛІДЖЕННІ МАТЕМАТИЧНОЇ МОДЕЛІ ЗГИНАЛЬНИХ КОЛИВАНЬ ЕЛЕКТРОМЕХАНІЧНОГО ШНЕКА
Authors: ПУКАЧ ПЕТРО , ПАБИРІВСЬКИЙ ВІКТОР , ПАБИРІВСЬКА НЕЛЯ
Published: April 2024

Отримано математичну модель згинальних механічних коливань шнека із урахуванням кутової швидкості його обертання навколо нерухомої осі та відносного руху вздовж нього однорідного середовища. Розроблено методику дослідження вказаної моделі, зокрема, у випадку короткого електромеханічного шнека. Отримано рівняння у стандартному вигляді, які визначають основні параметри динаміки нелінійних коливань. Проаналізовано вплив кінетичних та фізико-механічних параметрів на характеристики динамічних процесів у одновимірній математичній моделі нелінійних коливань рухомого  електромеханічного шнекового обладнання. Виведено зручні з точки  зору інженерної практики  розрахункові формули, що описують закономірності зміни амплітудно-частотних характеристик шнека як для нерезонансного, так і для резонансного випадку. Важливе питання дослідження впливу швидкості руху елементів механізмів на коливання одновимірних нелінійно-пружних систем досі детально не розглядалося в науковій літературі. Основною причиною цього в аналітичному дослідженні динамічних процесів були недоліки математичного апарату для розв'язування відповідних нелінійних диференціальних рівнянь, що описують закони руху цих систем. У роботі використано методи нелінійної механіки для часткового вирішення вказаної проблеми. Чисельні симуляції проведено для параметрів, близьких до тих, які використовуються в різноманітних промислових технологічних системах. Отримано умови резонансних та нерезонансних режимів роботи вказаної технологічної системи. Встановлено, що при поздовжніх коливаннях зі збільшенням поздовжньої швидкості середовища амплітуда коливань також збільшується. Встановлено також, що зі зростанням амплітуди частота поздовжніх коливань різко зменшується, а якщо система рухається з більшою швидкістю, то суттєво зменшується  частота коливань.
Дослідження з використанням  методів нелінійної механіки  дозволяють прогнозувати резонансні явища та отримувати інженерні рішення для підвищення ефективності технологічного обладнання.
ПІДВИЩЕННЯ СТІЙКОСТІ ПАРОЛІВ У ВЕБ-СИСТЕМАХ ЗА ДОПОМОГОЮ ВДОСКОНАЛЕНИХ СХЕМ ХЕШУВАННЯ
Authors: БАГРІЙ РУСЛАН , БАРМАК ОЛЕКСАНДР , МАНЗЮК ЕДУАРД
Published: April 2024

Researching the security of web systems is a relevant and integral component in the process of developing and operating Internet projects. Ensuring the security of user passwords is a key aspect in this context, as compromised passwords can lead to undesirable consequences, including loss of sensitive information, unauthorized access and website compromise.
One approach to making passwords more resistant to cracking is the use of hashing techniques. When a user account is created, the password is hashed using the selected hash function. The development of parallel computing allows for many attacks when cracking password hashes. To counter such attacks, it is necessary to constantly develop new password hashing schemes that will be effective and provide a higher level of password security in web systems.
The results of the study confirm that most of the popular frameworks used for the development of web systems do not provide a sufficiently high level of password protection. Many of them simply hash user data using fast and less stable algorithms such as SHA2 or MD5. This makes passwords vulnerable to hash table and dictionary attacks.
According to OWASP guidelines and accepted security practices, highly robust salted hashing algorithms are one of the most effective methods for keeping passwords secure. Such algorithms provide much greater resistance to various attacks, including attacks using specialized hardware and parallel computing.
Argon2id is one of the most robust password hashing algorithms that has won a password hashing contest and is considered one of the most reliable options for password security. Using Argon2id allows you to configure configuration parameters such as the minimum memory size, the number of iterations and the degree of parallelism, which allows you to achieve an optimal balance between security and performance.
СУЧАСНІ МЕТОДИ ПОСІВУ ЗЕРНОВИХ КУЛЬТУР
Authors: БАБИН ІГОР , ТРУХАНСЬКА ОЛЕНА , БУРЛАКА СЕРГІЙ
Published: April 2024

Analyzing the latest innovations and technological improvements, the article aims to highlight the trends that determine the efficiency and stability of yields in the grain sector. The article examines digital and agricultural technologies that allow agricultural producers to optimize the processes of sowing grain crops. Digital solutions such as data analysis, artificial intelligence and the use of modern agricultural sensors are seen as key tools to improve productivity and optimize resources. Geospatial analysis, taking into account environmental aspects and ensuring sustainable development are also becoming an object of research. The article examines in detail how the use of geographic information systems and the latest ecologically oriented practices can contribute to agriculture that uses resources efficiently and preserves the environment. This article is designed to consider modern methods of sowing grain crops, which define a new stage in the development of the agricultural sector. We will explore innovative strategies, from digital analytics to geospatial solutions, that maximize crop efficiency and promote sustainable use of natural resources. The general emphasis of the article is to highlight promising and practically significant aspects of the use of modern methods of sowing grain crops. The article also considers the challenges that may arise when implementing the latest technologies and provides recommendations for their successful implementation in the agricultural sector.
PRECONDITIONS OF THE STRATEGY OFSUSTAINABLE APPAREL PRODUCTION IN UKRAINE
Authors: BUKHANTSOVA LIUDMYLA , ZAKHARKEVYCH OKSANA , KRASNIUK LARYSA , LUSCHEVSKA OLENA
Published: April 2024

The fashion industry is known to be the second most environmentally harmful industry, as it faces various issues in its supply chain and consumption. Sustainable apparel creation not only helps reduce the environmental impact of fashion but also caters to the growing demand for eco-friendly products from consumers who are becoming more mindful about their purchases.
To maintain a circular economy, textile sources should be used as much as possible while retaining their value. Zero-waste design is a concept that aims to eliminate or minimise fabric waste during the garment creation process. Traditional fashion design often produces significant amounts of fabric discarded due to inefficient pattern-cutting and garment construction methods.
In this research, the relationship between a company's cutting system and the average percentage of interlaced textile waste and the relationship between a company's capacity and the average percentage of interlaced textile waste were defined to reduce manufacturing waste. The data suggests that a company's capacity does not significantly impact the average percentage of interlaced textile waste. On the other hand, a company's cutting system appears to impact the average percentage of interlaced textile waste ambiguous. Therefore, the following definition of the relationship between a company's assortment and the average percentage of interlaced textile waste is essential in this research field.
Combining zero-waste design with LCA can be a base for creating a new, effective, sustainable methodology for Ukrainian sewing companies.