bluuebunny/crossref_metadata_2025_split huggingface dataset:
Justification of the innovative design of the skip winch with a body moved by a counterweight gravity drive
Authors: Kaiym Talgat , Chsherbinin Yevgeniy , Kaimov Suleimen , Kaimov Aidarkhan , Kaimov Abylay , Bakhyieva Kalimagul 
Published: September 2023

The article has to grapple with the problem of creating an economically efficient and environmentally friendly technological process for a development of solid minerals in open-pit mining. In many mining countries of the world today, the depth of many open pits is already 400–600 m or more. At the same time, the cost of transporting 1 ton of rock mass when operating a quarry whose depth is 400 m is 65–70 % of the total cost of extracting 1 ton of minerals.
The object of research is technical devices for transport of rock masses in the technological process of development of solid useful deposits in open pit mining.
The main reasons are the need to construct transport routes for them by withdrawing the sections of the rock mass on above them, as well their lifting capacity is limited because of they all do use highly energy-intensive machines for transporting rock minerals. In article has been justified a skip cable winch supplied with a wheels moving along on a railroad way by using only a gravitational counterweight device for transporting rock mass from a place of their formation to Earth surface. There have been created a prototype of a planar skip winch with four cables for practical implement in open-pit mining. The theoretical and experimental investigations of the prototype have being confirmed its performance. The created skip winch will accomplish its performancing without using any energy machines even under adverse climate conditions. Its affected would allow to make an open-pit effectiveness to soar and environmentally do friendly because of there are all but excluded any transport vehicles whether on gasoline or diesel oil
The development of solution search method using improved jumping frog algorithm
Authors: Mamoori Ghadeer Al , Sova Oleg , Zhuk Oleksandr , Repilo Iurii , Melnyk Borys , Sus Sviatoslav , Bondarchuk Mariia , Kashkevich Svitlana , Moroz Mykola , Klyuchak Oksana 
Published: September 2023

The object of research is the decision making support systems. The subject of the research is the decision making process in management tasks using an advanced jumping frog algorithm (JFA), an advanced genetic algorithm and evolving artificial neural networks. A method of finding solutions with the use of improved JFA is proposed. The research is based on the JFA to find a solution regarding the object state. Evolving artificial neural networks are used to train frog agents (FA). The method has the following sequence of actions:
– an input of initial data;
– processing of initial data taking into account the degree of uncertainty;
– calculation of the value of the criterion of optimality of each permutation from the initial FA population
– global search of FA;
– an improvement of the FA position in the search space;
– a regulation of the speed of vehicle movement.
– an improvement of the working conditions of JFA;
– the FA rearrangement;
– an unification of all memplexes into one group;
– the verification of the fulfillment of the conditions of JFA operation;
– the search for the best FA;
– training of the FA knowledge bases.
The originality of the proposed method consists in the arrangement of the FA taking into account the uncertainty of the initial data, the improved procedures of global and local edge taking into account the degree of data noise about the analysis object state, the adjustment of the degree of data noise during the FA movement, the adjustment of the speed of the FA movement.
Also, the peculiarity of the proposed method is the use of an improved procedure for FA training. The use of the method makes it possible to increase the efficiency of data processing at the level of 14–18 % due to the use of additional improved procedures. The proposed method should be used to solve the problems of evaluating complex and dynamic processes in the interests of solving national security problems
An improvement of the method for assessing the efficiency of the methods of performing tasks by the naval forces in the conditions of hybrid operations
Authors: Vdovytskyi Yevhenii , Yakymiak Stepan 
Published: September 2023

The object of the research is the use of forces (troops) of the Naval Forces (Navy). The subject of the research is the process of evaluating the effectiveness of the use of Navy in various ways. An improved method for assessing the effectiveness of the ways of performing tasks by the forces (troops) of the Navy during the performance of the tasks of protecting the economic activity of the state at sea in the conditions of the enemy’s hybrid actions is proposed. The method has the following sequence of actions:
‒ an input of initial data;
‒ calculation of the probability of a timely response to enemy actions;
‒ calculation of the probability of the enemy’s refusal to act;
‒ calculation of the probability of ensuring the protection of objects conducting economic activity of the state at sea;
‒ calculation of the mathematical expectation of the number of objects that conduct economic activity at sea and will be protected by the Naval forces (troops);
‒ calculation of the protection degree of objects conducting economic activity at sea;
‒ calculation of the degree of decrease in the carrying capacity of ships (for tasks related to sea transportation);
‒ calculation of the mathematical expectation of the avoided loss of economic activity;
‒ determination of the protection degree of economic activity;
‒ determination of costs of material and technical resources;
‒ choosing the best (rational) way of using the Naval forces (troops) in accordance with the chosen criterion.
The novelty of the method consists in the use of an improved system of indicators for evaluating the effectiveness of the Navy’s methods of performing tasks, taking into account the dependence of the amount of mediated damage caused by sea transportation on the actions of the enemy and taking into account the effect of the Navy’s demonstration actions and the use of simulation tools on the effectiveness of task performance. The considered example showed a 25–40 % increase in assessment accuracy due to the consideration of additional conditions and factors
Design of various operating devices for sorting binary data
Authors: Hryha Volodymyr , Dzundza Bogdan , Melnychuk Stepan , Manuliak Iryna , Terletsky Andrii , Deichakivskyi Mykhailo 
Published: September 2023

The object of research is the process of designing hardware devices for sorting arrays of binary data using the methodology of space-time graphs.
The main task that is solved in the work is the development and research of multi-cycle operating devices for sorting binary data in order to choose the optimal structure with predetermined technical characteristics for solving the sorting problem. As an example, the development of different types of structures of multi-cycle operating sorting devices by the method of «even-odd» permutation is shown and their system characteristics are determined.
New structures of multi-cycle operating devices have been designed for a given sorting algorithm, and analytical expressions for calculating equipment costs and their performance have been given. A comparative analysis of the hardware and time complexity of the developed structures of devices for sorting binary numbers of various types with known implementations of algorithmic and pipeline operating devices was carried out. As a result, the proposed structures, when sorting large arrays of binary data (N>128), have an order of magnitude less hardware complexity due to sequential execution of the same type of operations. The time complexity of multi-cycle operating devices of combined and sequential types with large values of input data is 2.3 and 3.4 times less than that of known pipeline operating devices.
A feature of the research results is the possibility of finding the optimal ratio between the hardware and time characteristics of the resulting structures of sorting devices. Owing to this, the designer will be able to choose the necessary type of device for the implementation of the corresponding task with optimal system characteristics.
The field of application of the designed sorting devices is the tasks of digital processing of signals and images. The practical use of the developed sorting devices can be carried out in the form of their synthesis on software integrated logic circuits
Research of high-frequency remagnetization model in laminated magnetic cores of electromechanical and electromagnetic energy converters
Authors: Kovalenko Mykhailo , Chumack Vadim , Tymoshchuk Oksana , Kovalenko Mykhailo , Bazenov Volodymyr , Ihnatiuk Yevhen , Stulishenko Andrii 
Published: September 2023

The object of research in the work is charged magnetic conductors of electric machines and transformers.
Laminated magnetic wire together with windings are important active parts of electric machines that participate in electromechanical energy conversion.
The reliability of the entire machine is mainly determined by the actual condition of the inter-sheet insulation. Violation of the insulation causes parasitic eddy current circuits, which increases the specific losses, and also significantly affects the additional heating of the magnet wire and winding.
The normative method for determining the quality of the charged core is the assessment of specific losses at a frequency of 50 Hz and an induction of 1 T, which should not exceed 2.5–4 W/kg. To determine local damage to the core, methods of local heating and fixation of overheating sites are used, which should not exceed 45 °C compared to the main part of the magnetic core.
In the work, a two-dimensional field mathematical model of a charged magnetic circuit is developed. This makes it possible to carry out electromagnetic calculations in a near-real magnetic conductor, taking into account the variability of magnetic permeability, hysteresis, and the interaction of currents in adjacent plates of the magnetic conductor with each other, the so-called "proximity effect".
On the basis of the developed models, graphs of current distribution and distribution of magnetic induction in one, two and three sheets were obtained. The resulting graphs show how the effect of current displacement increases with increasing frequency, where at a frequency of 100 kHz the magnetic induction density in the middle of the sheet goes to zero. The results of the research confirm the correctness of the model development in comparison with the classical calculation models also given, which allows them to be used for further research of high-frequency processes in charged magnetic circuits of electric machines
Comparison of chemical composition and wear of iron and nickel aluminide coatings applied by plasma spraying
Authors: Smirnov Igor , Chornyi Andrii , Lysak Volodymyr , Dolgov Nikolay , Sіеliverstov Ihor , Parshenko Kostiantyn 
Published: September 2023

Given such properties as wear resistance, corrosion resistance, heat resistance, contact and cyclic strength, iron and nickel aluminides can be used as coatings in friction pairs for various purposes. The object of research is the process of obtaining plasma-sprayed coatings from powders based on iron and nickel aluminides. The task of research is the determination and comparison of the structure, chemical composition, and wear resistance of coatings from powders of iron aluminide and nickel aluminide, obtained by the method of atmospheric plasma spraying. To reduce the oxidation of powders during spraying, the conditions for generating a laminar plasma jet were created. Such conditions were provided by the specially developed structure of the electric arc plasma gun and the operating parameters of coating spraying. As a result of the correct choice of spraying modes, completely melted splats were formed during the collision of powder particles with the surface. The resulting coatings had a layered microstructure with microcracks and peeling. The porosity and characteristics of the delamination of the coatings depend on both the modes and the spraying technology. Tribological tests of the coatings were carried out under conditions of dry metal-on-metal sliding friction in a pair with high-speed steel. It is shown that the wear of nickel aluminide coatings under these conditions is 2–2.5 times lower than that of iron aluminide coatings. The coefficient of friction of iron aluminide coatings is slightly lower than that of nickel aluminide coatings. The wear of samples made of 30CrMnSi steel is 3–4 times higher than samples with coatings. The difference in the wear of the coatings is explained by the more intense oxidation of iron aluminide in the friction process. Conclusions were drawn regarding the possibility of using the investigated coatings in various friction pairs of structural elements, in particular in the automotive industry
Procedure for the structural synthesis of the logistic support system to the air force grouping of the armed forces of Ukraine in preparation for combat operations
Authors: Gurin Alexander , Musienko Oleksandr , Khomik Mykola , Vavilova Nadiia , Hurin Ihor 
Published: September 2023

This paper considers elements of the methodology for the structural synthesis of the logistic support system of the Air Force grouping of the Armed Forces of Ukraine during the preparation for combat operations. Contradictions between the growing need for military units in material and technical means and the limited capabilities of the existing system of logistical support of the troop group predetermined the relevance and practical focus of this study.
Measures have been devised that affect the logistical support of the troop group. It is proposed to implement a mixed centralized-decentralized principle of building a logistics support system based on «material support clusters», which could ensure timely and complete delivery of material and technical means.
During the research, it was established that reducing the response time to changes in the volume of supplies of material and technical means in military units would ensure the continuity of the operation of weapons and military equipment, and this would give signs of the adaptability of the proposed logistics support system. It is theoretically justified that the use of the proposed methodology could affect the actual availability of established military reserves of the troop group and obstacles that prevent timely replenishment of daily expenses and losses. The remoteness of military units and separate units from provision agencies and the limited means of transporting material and technical means were taken into account. The calculations of the efficiency assessment of the developed structure of the logistic support system allow us to draw conclusions about its superiority over the existing one by 14–17 % by ensuring the continuity of combat operations.
The idea and elements of the devised methodology could be used in the calculations of transport tasks of civil enterprises
Improving the accuracy of identifying objects in digital frames of one series through the procedure of preliminary identification of measurements
Authors: Khlamov Sergii , Savanevych Vadym , Vlasenko Vladimir , Trunova Tetiana , Troianskyi Volodymyr , Shvedun Viktoriya , Tabakova Iryna 
Published: September 2023

The object of this study is images of various objects of the Solar System on a series of digital frames. The variety and quality of shooting conditions make it difficult to identify a frame with the corresponding part of the sky. This fact significantly reduces the quality indicators of detection and estimation of the position of objects of the Solar System using already known computational methods and international astronomical astrometric and photometric catalogs. To solve this problem, a procedure for preliminary identification of measurements of digital frames of one series was devised.
This procedure is based on the determination of the shift parameters between the dimensions of a frame and the forms of a catalog or another frame. Also, taking into account the possibility of forming false measurements has made it possible to increase the accuracy of identification and resistance to various kinds of destabilizing factors. Based on this, the final estimation of the shift parameters between frames was performed. Due to these features, the use of the devised preliminary identification procedure makes it possible to improve identification with reference astronomical objects and reduce the number of false detections. The study showed that when identifying frames, the fitting gives the best accuracy of binding to the starry sky. Also, the standard deviation of frame identification errors in this case is 7–10 times less than without using the devised procedure.
The procedure developed for preliminary identification of measurements of digital frames of one series was tested in practice within the framework of the CoLiTec project. It has been incorporated into the Lemur software for automated detection of new and tracking of known objects. Owing to the use of the Lemur software and the proposed procedure implemented in it, more than 700,000 measurements of various astronomical objects under study were successfully identified
Determining the efficiency of installing fixed solar photovoltaic modules and modules with different tracking options
Authors: Golub Gennadii , Tsyvenkova Nataliya , Yaremenko Oksana , Marus Oleh , Omarov Ivan , Нolubenko Anna 
Published: September 2023

The object of this study is photovoltaic modules in various installation options. The physical model of the Earth's illumination by a parallel flow of solar rays has been refined. The dependence of the cosine of the angle of incidence of the Sun's rays on the angular length of the day, as well as the average annual efficiency of the installation of photovoltaic modules, both fixed and with various tracking options, was determined. Refinement of the physical model implies determining the angle of inclination as the angle between the inclined axis of the Earth and its projection on a vertical plane, perpendicular to the line connecting the centers of the Earth and the Sun. This line passes through the center of the Earth. The concept of the average annual efficiency of the installation of photovoltaic modules is introduced as the annual weighted average value of the cosine of the angle of incidence of solar rays on the plane of the photovoltaic module. Various options for installing photovoltaic modules were analyzed: fixed horizontal on the equator; stationary, installed at an angle to the horizon; one that performs tracking in horizontal (vertical) planes; with full tracking. The efficiency of installing a photovoltaic module at each latitude can be equal to the efficiency of installing this module at the equator, that is, 47.93 % when installing the module at an angle of inclination to the horizon equal to the latitude. Tracking in the vertical plane makes it possible to increase the efficiency of the photovoltaic module installation by up to 50 %. Compared to full tracking, tracking in the horizontal plane at an angle of latitude makes it possible to obtain the efficiency of the installation of the photovoltaic module at the level of 97.93 %.
The results could be used as a basis for evaluating the efficiency of the installation of photovoltaic modules at different latitudes with different techniques of their installation, as well as for the subsequent generation of electricity
Substantiation of creation of transdermal forms of drug delivery with antihypertensive action
Authors: Shyteyeva Tatyana , Bezchasnyuk Elena , Kryskiv Oleg , Grynenko Vasyl 
Published: September 2023

The article presents the theoretical justification for the choice of active pharmaceutical ingredients of antihypertensive action for the creation of new forms of delivery - transdermal therapeutic systems.
Purpose: monitoring of studies on the use of angiotensin-converting enzyme (ACE) inhibitors in the development of transdermal drugs for the treatment of hypertension.
Materials: open access electronic resources of scientific periodicals from around the world: Google Scholar (https://scholar.google.com/); PubMed (https://pubmed.ncbi.nlm.nih.gov/); Sciencedirect (https://www.sciencedirect.com/); Pubchem (https://pubchem.ncbi.nlm.nih.gov/); National Library of Ukraine named after V. I. Vernadskyi (http://www.nbuv.gov.ua/); Ukrainian Institute of Intellectual Property (Ukrpatent) (https://sis.ukrpatent.org/uk/); Industrial Property (https://base.uipv.org/searchBul/); USPTO. The United States Patent and Trademark Office (https://www.uspto.gov/patents/search); European Patent Office (EPO) (https://www.epo.org/).
Methods of the research: information search, theoretical analysis and systematization of data from scientific sources, logical analysis.
Results: a review of scientific sources was carried out, and an analysis of ACE inhibitors as candidates for the creation of transdermal forms for the treatment of arterial hypertension was carried out. The pharmacological and physicochemical aspects of the possibility of their use for introduction through the skin are defined. It has been established that the search and development of the latest means of treatment of arterial hypertension, which would significantly increase the duration and quality of life of patients, are extremely relevant. Transdermal drug delivery systems are one of the pharmaceutical products being developed on the world market, and their use allows overcoming the associated disadvantages of other delivery routes.
Conclusions: the review of domestic and foreign literature confirmed the relevance of biopharmaceutical research in the field of development of innovative dosage forms - transdermal therapeutic systems for the treatment of hypertension.
The choice of promising antihypertensive active pharmaceutical ingredients of the ACE group (enalapril maleate, lisinopril dihydrate, and captopril) is substantiated, taking into account their specific physicochemical properties that are suitable for penetration through the skin.
The market for transdermal drug delivery is increasing, and there is a prospect of higher growth rates in this market in the coming years