bluuebunny/crossref_metadata_2025 huggingface dataset:
First record of the Canestrini’s goby Ninnigobius canestrinii (Ninni, 1883); a rare and endangered fish species from Slovenian waters
Authors: Trkov Domen , Fortič Ana
Published: September 2023

The Canestrini’s goby is a small goby endemic to the Adriatic basin, inhabiting brackish and fresh waters. The species is threatened by habitat destruction and pollution. For this reason, the goby is protected in part of its range, while its conservation status in other areas is not yet established. The detailed biogeography of the species should be known so that appropriate conservation measures can be taken. Despite extensive sampling of fish fauna in coastal wetlands, this species has not yet been detected in Slovenia. In this study, the first record of Ninnigobius canestrinii (Ninni, 1883) in Slovenian waters is reported along with a comprehensive review of documented records of the species.
Modelling the distribution of technical documentation sets
Authors:   JSC «SIC ", Chervatyuk V. D. ,   Polus",   », Chekrigin S. S. ,   JSC «SIC "Polus"»
Published: September 2023

The analysis of the problem of definition the parameters of the determined model for the distribution complete sets of the design documentation to registration points of the organization is carried out. The basic requirements and the general system functions of the organization of dispatch of electronic technical documentation are stated. The algorithms are developed, allowing on concrete values of factorial indicators unequivocally to define value of a productive indicator (creation of zip-archive of the version of electronic technical documentation for a certain registration point) in the given model. Task in view realization is executed in the form of working out of the software of a separate subsystem of the MANAGEMENT information system the Enterprise of joint-stock company JSC «SIC "Polus"». Results of statement on dispatch in registration points of the organization of complete sets of the design.
ДОСЛІДЖЕННЯ ВПЛИВУ КІНЦЕВИХ ВТРАТ НА ЕКОНОМІЧНУ ЕФЕКТИВНІСТЬ РОТОРНОГО ГВИНТА
Authors: Лебедь Валентин Георгиевич , Калкаманов Салим Аюпович , Пчельников Сергей Иванович
Published: September 2023

The article is devoted to the quantitative assessment of the effectiveness of rotary screws. Presented by the further development of the method of calculating the aerodynamic characteristics of the rotary screw terminal for accounting losses and inductive reactance. The results of studies of the influence of geometric parameters of rotary screw on its cost-effectiveness. A method for improving the economic efficiency of the aircraft with rotary screw in the range of small and medium speeds forward flight by  setting the limit of the aerodynamic surfaces on the blades.
ЗАДАЧА ДІРІХЛЕ ДЛЯ ТРАНСВЕРСАЛЬНО–ІЗОТРОПНОЇ ПРЯМОКУТНОЇ ПЛАСТИНИ
Authors: Халилов Сиявуш Ахмедович , Кривцов Владимир Станиславович , Минтюк Виталий Борисович , Ткаченко Денис Анатольевич , Павленко Виталий Николаевич , Копычко Виктор Владимирович
Published: September 2023

The approach offered before to solve Dirichlet boundary value problems for bending of rectangular transversely isotropic plate which is described by system of three differential equations with partial derivatives and total order equal six is developed. The approach to solve totally heterogeneous boundary value problem is based on reducing to solving a set of basic boundary value problems. Several ways to extend the functions from boundary to area and comparative analysis of their efficiency are offered in order to implement the method. It is showed that polynomial functions are of the best approximative properties concerning convergence and accuracy of constructed analytical numerical solutions.
ДОСЛІДЖЕННЯ ЗАГРОЗ І ВРАЗЛИВОСТЕЙ У КРИТИЧНІЙ ІНФРАСТРУКТУРІ ТЕХНОГЕННИХ ОБ'ЄКТІВ І СИСТЕМ
Authors: Федорович Олег Евгеньевич , Еременко Наталия Валентиновна , Пуйденко Вадим Алексеевич
Published: September 2023

The problem of research of threats in critical infrastructures (CI) of technical objects and systems (TOS) is formulated and solved. The following methods are proposed: choosing an efficient option for carrying out the measures to neutralize the threats and minimize the damage in case of a threat. The structure of the agent simulation model to investigate the impact of threats and vulnerabilities in CI TOS is developed. The proposed approach allows eliminating the risks associated with the impact of aggressive external influences on the infrastructure of technogenic objects in order to ensure their normal functioning under conditions of moral and physical aging.
КОНЦЕПЦІЯ ТЕХНОЛОГІЧНОГО ЗАБЕЗПЕЧЕННЯ СТВОРЕННЯ ЕФЕКТИВНИХ КОНСТРУКЦІЙ ВІТЧИЗНЯНИХ ЦИВІЛЬНИХ ЛІТАКІВ З ПОЛІМЕРНИХ КОМПОЗИЦІЙНИХ МАТЕРІАЛІВ В СУЧАСНИХ УМОВАХ
Authors: Андреев Алексей Викторович , Гайдачук Виталий Евгеньевич , Кондратьев Андрей Валерьевич , Орлов Олег Владимирович
Published: September 2023

Based on the analysis and synthesis of domestic and foreign experience, a general conceptual approach to the creation of new civil aircraft has been developed. A particular case of this approach is the concept of designing and manufacturing aggregates of polymer composite materials. The concept includes a classifier of technological processes for manufacturing composite aggregates and a complex criterion of their effectiveness. The classifier is based on the comparison of the technological parameters (characteristics) required for the project implementation in the conditions of the modern domestic production complex. The system of conceptual assessment of the effectiveness of technological support of the project implementation allows comparing the number and completeness of particular criteria with the goals and objectives of the analysis.
ПЕРСПЕКТИВИ ЗАСТОСУВАННЯ СУЧАСНИХ МЕТОДІВ ГЕНЕРАЦІЇ ГАЗОВИХ СУМІШЕЙ ДЛЯ ПРЕЦИЗІЙНОЇ ТЕРМОІМПУЛЬСНОЇ ОБРОБКИ
Authors: Планковский Сергей Игоревич , Шипуль Ольга Владимировна , Заклинский Сергей Александрович
Published: September 2023

The directions of improving of mixture formation system for thermal pulse equipment are considered. Based on established by international standards qualimetric parameters of precision parts edges the requirements to dosing accuracy of fuel mixture components are formulated for precision thermal pulse treatment. An overview of the methods for gas mixture generating with a high-precision component ratio was examined, its features, advantages and disadvantages were reviewed with regard to thermal pulse equipment were considered. For solving the specified problem the critical hole method as the most promising method is proposed to apply.
АНАЛІЗ ЕФЕКТИВНОСТІ ПРОМІЖНОГО ОХОЛОДЖЕННЯ ПОВІТРЯ ГАЗОТУРБІННИХ УСТАНОВОК УПОРСКУВАННЯМ ВОДИ АЕРОТЕРМОПРЕСОРОМ
Authors: Радченко Микола Іванович , Коновалов Дмитро Вікторович , Кобалава Галина Олександрівна
Published: September 2023

The comparative analysis of conventional schemes of gas turbine units of simple and complex cycles with intermediate air cooling by water injection and proposed schemes with aerothermopressor is carried out. A principle of cooling with the use of aerothermopressor effect, or so called, thermogasdynamic compression, is in increase of gas (air) pressure during instantaneous evaporation of water, injected into gas (air) stream accelerated up about to the sound velocity. The results of calculations has shown that the use of aerothermopressor allows to increase the efficiency of the gas turbine units with regeneration by 0,5…2,0 %, and for the units of complex cycle with stage compression and expanding – by 2,0…4,0 %.
МАТЕМАТИЧНА МОДЕЛЬ ДЛЯ ПРОГНОЗУВАННЯ ХАРАКТЕРИСТИК ЕЛЕКТРОХІМІЧНИХ АКУМУЛЯТОРІВ ЕНЕРГОУСТАНОВОК РАКЕТНО-КОСМІЧНИХ ОБ’ЄКТІВ
Authors: Безручко Костянтин Васильович , Харченко Андрій Анатолійович , Сінченко Світлана Володимирівна , Лазненко Віктор Іванович
Published: September 2023

A mathematical model of an alkaline electrochemical battery which takes into account the processes that occur in the batteries during their operation is presented. The mathematical model was tested with the help of a technique of predicting the characteristics of electrochemical accumulators, developed by the authors. Approbation of the technique was carried out based on the results of a study of nickel-cadmium accumulators NK-125 and NKG-160, as well as nickel-cadmium batteries 3NK-125. To test the model, the current state of the accumulators was determined and the empirical coefficients of the mathematical model were determined, and the measurement errors and the model were calculated from the results of the evaluation. To confirm the reliability of the calculated characteristics, the calculated characteristics were compared with the experimental data obtained as a result of previous resource studies. The average approximation error for the mathematical model does not exceed the critical value of this quantity (10%), and therefore the mathematical model is adequate. As a result, a long (up to thirty years) predict was obtained for the main operational characteristics of electrochemical batteries for power plants of rocket and space equipment: capacitance and voltage. Using the method of predicting the characteristics of electrochemical batteries based on the presented mathematical model, it is possible to conduct a simple predict of the main operational parameters of electrochemical accumulators (capacity, voltage) and charge-discharge characteristics for a long run of their operation (dozens of years). The predict can be carried out both for new accumulators and for accumulators in operation, which is an absolute advantage of this method and mathematical model. Also, the predict of performance characteristics for a long period of their operation can be carried out not only for individual batteries, but also for storage batteries. The average absolute discrepancy between the values of capacitance and the mean of the error of approximations is 0.86 Ah, 6.29%, respectively. The absolute difference in capacitance values for 20 years is 1.1 Ah, and the error of approximation for 20 years is 10%.
ОСОБЛИВОСТІ ОРГАНІЗАЦІЇ ОХОЛОДЖЕННЯ КАМЕРИ ЗГОРЯННЯ ДВИГУНІВ, ЩО ВИКОРИСТОВУЮТЬ ЯК ОКИСЛЮВАЧ ПЕРЕКИС ВОДНЮ ВИСОКОЇ КОНЦЕНТРАЦІЇ
Authors: Андриевский Михаил Витальевич , Митиков Юрий Алексеевич , Шамровский Дмитрий Анатольевич
Published: September 2023

Interest in storable ecologically friendly propellant has increased recently. One of the reasons for that is convenience in storage, handle and delivery. The most interesting storable propellant for launch vehicles is high-test peroxide with kerosene.  A few companies are engaged in development of small launch vehicle on this propellant. Moreover, European Space Agency announced a tender for the development of the engine which runs on the high-test peroxide. Taking these circumstances into account, researches focused on these engines become more relevant.One of the best features of this propellant is a high density and high propellant mixture ratio. Taking into account that for the full burning of kerosene eight times more hydrogen peroxide is needed, traditional cooling with fuel becomes difficult. That is why the other ways to arrange cooling be found. One of the most evident ways of solving this task is to use oxidizer as a coolant. High-test peroxide has a few advantages such as high specific heat capacity, high density and thermal conductivity, but using it as a coolant is connected with difficulties. Material for combustion chamber should be chosen properly because it should be compatible with peroxide and temperature of inner wall must not be higher than temperature of high-test peroxide decomposition. Though, there were engines which were cooled with high-test peroxide (Gamma 2, AR-2), but there are no definite recommendations about designing such a combustion chambers.      This article threats peculiarities of cooling combustion chamber of rocket engine, which runs on high-test peroxide and kerosene. Method of cooling combustion chamber with hydrogen peroxide is considered in the article. Design calculations of engine with thrust level 250 kg have been made. Designed engine have been manufactured and fired for a few times. Experimental data have been compared with calculations and recommendations on how to arrange cooling of combustion chamber with hydrogen peroxide have been given. Also, conclusions about the advantages of rocket engines which run on high-test peroxide and kerosene have been made in comparison with ones which utilize liquid oxygen as an oxidizer.
МЕТОДИКА ВИЗНАЧЕННЯ ДАЛЬНОСТІ ВИЯВЛЕННЯ БЕЗПІЛОТНИХ ЛІТАЛЬНИХ АПАРАТІВ ЗА ЇХ ТРИВИМІРНИМИ МОДЕЛЯМИ
Authors: Абрамов Сергей Клавдиевич , Абрамова Виктория Валерьевна , Абрамов Клавдий Данилович , Калужинов Игорь Владимирович
Published: September 2023

The problem of unmanned aerial vehicles (UAVs) detection and ranging is considered. It is shown that due to the small geometrical dimensions, the use of composite materials, low engine power and low flight altitudes, the UAVs are practically undetectable for long distances in thermal, radio and acoustic ranges, thus, the main detection range for UAVs is visible. The effectiveness of visual detection mainly depends on three factors: the background brightness, the contrast of the object with the background and the angular size of the object. For the most favorable observation conditions, the maximum detection range is determined by the angular size of the object. In the case of observation with the naked eye, the maximum detection range corresponds to the angular size of the object at one angular minute. Based on this condition the technique for visual detection range indicatrice constructing is proposed. It presumes obtaining visually observable for given azimuth and elevation angles UAV’s square calculated in CAD system for existing 3D model of UAV. The technique was successfully tested on UAV models with different aerodynamic schemes. The influence of the aerodynamic scheme on the detection range is analyzed. It is shown that the models constructed according to the "flying wing" scheme have a detection range that is practically independent of the azimuth, and the models constructed according to the normal scheme are detected at a greater distance in the lateral observation than when viewed from the front. The indicatrices of the detection range for one of the UAV models obtained from the experimental data and data modeled by the proposed technique are compared. It is shown that, in general, the technique provides values of the detection range close to the experimental data, but a bit higher. This confirms the applicability of the technique for providing comparative analysis of various models of UAVs. For obtaining more accurate detection range estimation results the further improvement of the technique is necessary. The main approaches of further work in this direction are outlined. They concern the exclusion of the areas of the UAV’s elements, which have a hidden color and specific elongated shape.
ВИКОРИСТАННЯ АДИТВНИХ ТЕХНОЛОГІЙ ДЛЯ ВИГОТОВЛЕННЯ КАМЕР РАКЕТНОГО ДВИГУНА
Authors: Андриевский Михаил Витальевич , Митиков Юрий Алексеевич , Аджамский Сергей Викторович , Шамровский Дмитрий Анатольевич
Published: September 2023

Taking into account that traditional ways of manufacturing of thrust chambers are quite complex and expensive, optimization researches of this process are the most actual in aerospace industry. In a recent years additive manufacturing such as metal 3D printing has attracted attention. This article is devoted to applying of additive technologies for manufacturing of regeneratively cooled thrust chamber of rocket engine. The reason for that interest is growing competition in providing of launch services. More and more countries appear at this market for example India, China, Japan and New Zeeland. Moreover, private companies such as Space X, Blue Origin, Rocket Lab and FireFly interfere into competitive straggling. As a result, minimization of the price for 1 kg of payload becomes the most relevant. There are two the most wide spread traditional methods of thrust chambers manufacturing: brazing, which is wide spread in post-Soviet countries and electroplating, which is popular in the USA. These two methods are quite expensive because they require a lot of different equipment, electrical energy and time. Moreover, they are very difficult for implementation and needs high-qualified specialists. This is the reason why new ways of thrust chamber manufacturing are being looked for. In a recent decades additive manufacturing, which is known as a 3D printing, is being actively developed. Attractiveness of additive manufacturing is in possibility of producing details with difficult geometry just in one technological operation. This circumstance allows to speed up design and manufacturing process. Moreover it allows to make changes in the design process without necessity of making changes in the equipment. This article treats possibility to use additive manufacturing for thrust chambers of rocket engines manufacturing. Regeneratively cooled combustion chamber of rocket engine with a thrust level 350 kg have been design and manufactured. It has been fired for five times with registration of all changes in the structure of combustion chamber after each firing. After the full cycle of tests metallographic analysis of the material structure have been made.
ДОСЛІДЖЕННЯ АЕРО-АКУСТИЧНОЇ ЕФЕКТИВНОСТІ ПРОФІЛЮ ЛОПАТКИ ВЕНТИЛЯТОРА ТРДД З ВИКОРИСТАННЯМ КОМПЛЕКСУ ANSYS
Authors: Кисляк М. И. , Митрахович М. М.
Published: September 2023

The modification of aircraft engines is a complex process and such directions as investigation of the efficiency of the profile of the fan blade from the point of view of aero-acoustic characteristics require a special approach to the problem. One such approach is the use of a software environment that will allow to determine the most effective profile with minimal costs. This technique significantly speeds up the designer and research department, allowing for a minimum period of preliminary investigation of the parameters of the fan and take all the necessary measures.
ЧИСЕЛЬНЕ МОДЕЛЮВАННЯ ЛАМІНАРНО-ТУРБУЛЕНТНОГО ПЕРЕХОДУ У ВИСОКОНАВАНТАЖЕНІЙ ТРАНСЗВУКОВІЙ ТУРБІННІЙ РЕШІТЦІ
Authors: Ершов С. В. , Яковлев В. А. , Гризун М. Н.
Published: September 2023

A three-dimensional turbulent flow of a viscous compressible gas through a high-loaded transonic turbine cascade is considered, taking into account the laminar-turbulent transition. Mathematical simulation of the flow is performed using the Reynolds-averaged Navier-Stokes equations and the two-equation k-ω SST turbulence model. Transition modeling is based on the algebraic PTM model. The effect of turbulent flow parameters on the laminarturbulent transition and the kinetic energy losses of the modeling turbine cascade of the TFAST project is investigated.
ПЛАВАЮЧЕ КІЛЬЦЕ ЯК ДЖЕРЕЛО ЗГИНАЛЬНИХ КОЛИВАНЬ РОТОРА
Authors: Бадун О. П. , Иванов Я. Н.
Published: September 2023

The most usual type of seal round impeller’s collars for LPE TP is a floating ring. The article describes that on certain conditions the floating ring may be a source of bending oscillation occurrence in rotor and stipulates the importance of the rotor dynamics examination within the system “seal-rotor-bearing”. At the same time authors propose a mechanism of the bending oscillation occurrence, show the results of the floating rings testing with various designs and their influence on the ball bearings status, as well as show the results of the rotor development supported by two ball bearings with centered turbine.
АВТОКОМПЕНСАЦІЯ ДИФРАКЦІЙНИХ ЯВИЩ У ЧУТЛИВИХ ЕЛЕМЕНТАХ ГІРОСТАБІЛІЗОВАНОЇ ПЛАТФОРМИ ПРЯМИМ ВИКОРИСТАННЯМ ПРИНЦИПА ДВОКАНАЛЬНОСТІ ПЕТРОВА
Authors: Мельник В. М. , Бойко Г. В.
Published: September 2023

In this paper, one of the methods of auto-compensation of diffraction phenomena in sensitive elements was evaluated, which was used in gyroscopes. The work of the gyrostabilizer under operational conditions of the aircraft is studied with the simultaneous influence of external perturbing factors - intense acoustic disturbance, as well as vibration of the carrier body, caused by the operation of the engines. The expediency of the method for using supersonic aircraft in operational conditions for averaging the instantaneous errors of the stochastic structure is proved. The two-channel method is an effective means of reducing the influence of external perturbing factors caused by methodical errors in the kinematics of gyroscopic sensors, in particular, it is an effective means of reducing the effect of crosslinks between the channels of force stabilization of the platform with gyroscopic moments.
МЕТОД МОДЕЛЮВАННЯ НЕСТАЦІОНАРНИХ ПОЛІВ КОНЦЕНТРАЦІЙ АТМОСФЕРНИХ ДОМІШОК
Authors: Васильева И. К. , Нечаусов А. С.
Published: September 2023

The calculational techniques of the pollutants concentration in the atmosphere have been considered. The probabilistic model based on the normal distribution as well as the SL-Johnson’s distribution has been proposed, which allows to consider non-steady nature of the factors which are shaping concentrations field. The developed model takes into account the spatial localization of the pollutant sources, the sources’ attributes that characterize the physical conditions of pollutants emission into the atmosphere, wind speed and direction, atmospheric diffusion and duration of the emission. The results of the simulation of atmospheric pollutants concentration fields for steadily and intermittently functioning point source of contamination in unstable weather conditions have been presented.
МЕТОД СТИСНЕННЯ ДАНИХ МОНІТОРИНГУ ТРАФІКУ ДЛЯ ЗАСОБІВ ТЕЛЕКОМУНІКАЦІЙ
Authors: Кожемякина Н. В. , Пономаренко Н. Н.
Published: September 2023

In this paper a problem of compressing data containing information on basic parameters of network traffic is considered. Twelve test sets with different types of network traffic for known monitoring tools Wireshark, Colasoft Capsa and CommView are formed. It is shown that the main part of memory in compressed data relates to timestamps. A method for compressing timestamps that consists in delta calculation, Burrows-Wheeler transform (BWT), distance coding (DC) and recursive group coding (RGC) at the final stage is proposed. It is demonstrated that the use of RGC at the final stage provides more efficient coding compared to known methods. It is also shown that the proposed method of timestamps coding produces about twice larger compression ratio than WinRar
РОЗРОБКА АРХІТЕКТУРИ ІНТЕЛЕКТУАЛЬНОЇ СИСТЕМИ ДЛЯ ВИВЧЕННЯ ФІЗИКИ
Authors: Чухрай А. Г. , Шаталова М. О.
Published: September 2023

This article focuses on the formation of the technical requirements for modern agent-based intellectual learning system, as well as designing its architecture. The main content of the article is the description of functioning of units constituting the system, and interactions between them. Considerable attention is paid to the main tasks for each part in structure of system, as well as methods for their solutions. Finally, a possible embodiment of sequence of interactions between the parts of the system when solving the general problem is presented, as well as further steps for the development of the training system offered
АЛГОРИТМИ ФІЛЬТРАЦІЇ ЕЛЕКТРОКАРДІОГРАМИ З ДИНАМІЧНО ЗМІНЮВАНИМ РОЗМІРОМ ВІКНА
Authors: Тулякова Н. О. , Трофимчук А. Н. , Стрижак А. Е.
Published: September 2023

Approximating and nonlinear locally adaptive filters with dynamically variable size of scanning window that have simple implementation for processing ECGs registered with sampling frequency 400 Hz are considered. Statistical estimates of filter quality according to MSE and SNR criteria are obtained. Adaptation parameters that depend on signal and noise level are analyzed as well as the corresponding plots of window variation for processing input signal. Adaptive filter output signals are presented for ECG with different noise levels. Recommendations on their application are given. Advantages of applied adaptation parameters are marked.
МЕТОД СТАТИСТИЧНОГО МОДЕЛЮВАННЯ ДОСЛІДЖЕННЯ ПОКАЗНИКІВ ЯКОСТІ ВИЯВЛЕННЯ БЛИЗЬКОНУЛЬОВОГО ВИДИМОГО РУХУ ДОСЛІДЖУВАНОГО ОБ'ЄКТА НА СЕРІЇ CCD-КАДРІВ
Authors: Хламов С. В. , Саваневич В. Е. , Брюховецкий А. Б. , Орышич С. С.
Published: September 2023

The method of statistical modeling of research of quality indication of detection of the object’s close-to-zero apparent motion on the series of CCD-frames is developed. This method takes into account the main features of the formation of the measurement position of object and features of the various methods of detection near-zero apparent motion of object on a series of CCD-frames. Also partly results of research of quality indication of detection of objects with near-zero apparent motion is provided by developed statistical modeling method in this article.
РЕКУРСИВНЕ ГРУПОВЕ КОДУВАННЯ З РЕКУРСИВНИМ ЧАСТОТНИМ МОДЕЛЮВАННЯМ
Authors: Кожемякина Н. В. , Пономаренко Н. Н.
Published: September 2023

Task of entropy group coding of data for reduce of its statistical redundancy on base of recursive group coding is considered. Recursive group coding provides effective coding of symbols of large alphabets. It is fast and in some cases more effective alternative of such methods as arithmetical coding and Huffman coding. However applications of recursive group coding are restricted by usage of statistical frequency modeling. For such modeling frequencies (or probabilities) of symbols are calculated for entire text as well as information about size sand contents of groups are stored in compressed file. In this work a modification of recursive group coding are proposed which is able effectively compress texts statistically heterogeneous by frequency characteristics. A model for synthesizing of test texts is considered. Also a new metric for estimates of uniformity of a given text is proposed. It is shown that for considered test texts the proposed modifications of recursive group coding provide up to 65% less compressed data size than conventional method.
ОРГАНІЗАЦІЯ СИСТЕМИ АВТОМАТИЧНОГО РЕФЕРУВАННЯ ТЕКСТУ НА ОСНОВІ НЕЧІТКОЇ ІЄРАРХІЧНОЇ НЕЙРОННОЇ МЕРЕЖІ
Authors: Михайлюк А. Ю. , Михайлюк О. С. , Огнівчук Л. М. , Тарасенко В. П.
Published: September 2023

The approach to the construction of the automatic text summarization (ATS) system based on hierarchical fuzzy neural network (HFNN), which is oriented on structural and non-structural features for extraction at different levels of the text, taking into account connectivity initial text of the document, which allows consider not only statistical information, but also organizational and syntax-semantic structure of the text, is proposed. The mathematical apparatus HFNN and its learning algorithm for solving ATS task are considered. By means of Matlab the experiment for HFNN approbation and also verifying its effectiveness is done. It is shown that the quality of the summary, obtained using the proposed method is higher compared to the summary, obtained by conventional statistical methods.
МОДИФИКАЦИЯ ОБНАРУЖИТЕЛЯ ТЕКСТУР С ПРИМЕНЕНИЕМ АГРЕГАЦИИ ВХОДНЫХ ПАРАМЕТРОВ
Authors: Кривенко Сергей Станиславович , Науменко Алексей Васильевич , Зряхов Михаил Сергеевич , Лукин Владимир Васильевич
Published: September 2023

The importance of texture area detection in images is motivated. A modification of the method of texture area detection using SVM-classifier for images corrupted by rather intensive additive white Gaussian noise by aggregation of input parameters is proposed. A modified procedure of classifier training is described. Criteria of processing efficiency used in analysis are given. For test data, the effectiveness of the developed approach and improvement of classifier performance are demonstrated
ЗАБЕЗПЕЧЕННЯ КІБЕРБЕЗПЕКИ МЕДИЧНИХ СИСТЕМ: ВИКЛИКИ І РІШЕННЯ В КОНТЕКСТІ ІНТЕРНЕТУ РЕЧЕЙ
Authors: Стрєлкина Анастасія Андріївна , Узун Дмитро Дмитрович
Published: September 2023

This article reviews the main challenges and solutions in the field of cybersecurity medical systems in the context of the Internet of things. The authors identified key vulnerabilities, threats and risks of health care network devices. The paper describes in general terms the main regulatory documents in the field of cybersecurity providing, such as HIPAA privacy and security rules, FDA requirements for cybersecurity for pre- and post-market of the medical devices. Using the results of research authors systematized basic directions in providing cyber security of medical devices in the context of Internet of things
ФАКТОРНИЙ АНАЛІЗ РИЗИКОУТВОРЮЮЧИХ КОМПОНЕНТ РОЗВИТКУ ПОСТІНФАРКТНОГО СИНДРОМУ
Authors: Порван Андрей Павлович , Высоцкая Елена Владимировна , Чижик Елена Игоревна , Новикова Ирина Владимировна
Published: September 2023

The use of factor analysis to identify risk components for the emergence and development of postinfarction syndrome (Dressler's syndrome), which can lead to recurrent or recurrent myocardial infarction, is considered. As a result of the analysis, five significant risk factors were identified, including the results of laboratory and instrumental studies related to anthropometric indicators, the presence of heart failure and other harbingers of recurrent coronary circulation disorders. Isolated and systematization of factors can be the basis for the development of mathematical and algorithmic support of an automated screening monitoring system for patients with advanced myocardial infarction.
DIGITAL TOOLS IN THE STUDY OF ASTRONOMY
Authors:   Kamianets-Podilskyi College of Food Technologies NUPT, Kylymnyk Serhiy , Kukh Arkadiy ,   Kamianets-Podilskyi National Ivan Ohiienko University
Published: September 2023

The article analyzes digital resources and applications that can be used in the study of astronomy in institutions of higher and secondary education. This is a description of virtual physical observatories, electronic planetariums, virtual and augmented reality applications. The methodological component of the use of digital resources in astronomy is considered. The tasks and prospects of the Ukrainian virtual observatory are disclosed.
THE USE OF SLIDING CONTROL IN THE PROCESS OF STUDYING PHYSICS IN SECONDARY AND VOCATIONAL-TECHNICAL SCHOOLS
Authors:   Lviv Polytechnic National University, Kozlovskiy Yuriy , Оpachko Magdalena ,   State University "Uzhhorod National University", Bilyk Oksana ,   Lviv Polytechnic National University
Published: September 2023

In classical didactics of physics control and evaluation of the students’ levels of knowledge assimilation are considered as an integral component of the lesson. In modern didactics, they are interpreted much more broadly, namely, as: markers of the quality of education; an effective mechanism for managing the educational and cognitive activities of students; component of the methodical system of the teacher in the content of diagnostics: learning styles of students, didactic environment and didactic interaction, etc. In the article, control and evaluation are considered in the focus of systemic and integrative approaches in education, which are specified through the use of sliding control. The basis of the sliding control system of students’ knowledge is the accumulation of data both on the level of knowledge of the group as a whole and of each student, in particular, by dividing the analysis of knowledge into micro stages, which are then periodically integrated. Experience has shown that this approach provides a long-lasting and thorough result not only in the assimilation of students’ knowledge, but also in the objectivity of their verification.
METHODOLOGICAL ASPECT OF OBSERVATION OF CHANGES IN RADON VOLUME CONCENTRATION DEPENDING ON GEOGRAPHIC AND SEISMIC PARAMETERS IN THE REGION
Authors:   Regional center of special control, Smirnov Olexiy , Muntyan Mykhailo ,   Regional center of special control, Gubanova Antonina ,   Regional center of special control, Optasiuk Serhiy ,   Kamianets-Podilskyi National Ivan Ohiienko University
Published: September 2023

The paper describes one of the methods of investigation of galvanomagnetic phenomena compound thin film semiconductor system AIVBVI. The resulting current-voltage characteristics of thin films PbTe: Sb and analyzed the basic parameters for thin films of different thicknesses using the method of Hall. The dependence of the film thickness PbTe:Sb on the mobility and concentration of major carriers.
FEATURES OF THE STUDY OF ELECTRICAL SAFETY ISSUES DURING LIFE SAFETY AND OCCUPATIONAL SAFETY TRAINING IN EDUCATIONAL INSTITUTIONS
Authors:   Kamianets-Podilskyi National Ivan Ohiienko University, Chorna Oksana , Rachkovskyy Oleh ,   Kamianets-Podilskyi National Ivan Ohiienko University
Published: September 2023

The relevance of the issue of electrical safety is characterized by the wide application of electric current in all manifestations of human life and activity without exception. In order to reduce the level of electrotraumatism during the educational process, work is being organized to prepare the educational institution for the new academic year. The article defines the areas of activity of the administration of the educational institution regarding: bringing engineering and technical communications, equipment in compliance with current standards, rules and norms of electrical safety, organizing training and testing electrical safety knowledge of employees and students. It is important not only to observe the rules of electrical safety, but also to know about the causes of electrical injuries, the specifics of the effect of electric current on the human body, and about the adverse conditions of electric shock. In the educational institution, efforts should be made to raise the awareness of employees and students regarding the observance of safe conduct of educational classes, work and improvement of the state of the educational and industrial environment. All officials of the educational institution must solve professional tasks taking into account the requirements of occupational health and safety and possess basic professional competences in occupational health and safety.
STUDENT STEM RESEARCH IN INSTRUMENT MANUFACTURE
Authors:   National University of Water and Environmental Engineering, Rivne, Rybalko Andriy , Rybalko Olena ,   Rivne Regional Scientific Lyceum, Zakharchuk Oleksandr ,   Rivne Regional Scientific Lyceum
Published: September 2023

The article provides a brief overview of research directions and publications regarding the implementation of STEM education and educational research in the Ukrainian education system. We considered the purpose and methodology of setting STEM research tasks for students of public secondary schools to create prerequisites for developing relevant competencies in various spheres of life. The article offers a variant of STEM research for students’ extracurricular work based on the following academic disciplines and areas close to them: physics, computer science, and mathematics. In addition to purely school academic disciplines, this variant of studies contributes to forming competencies in programming, medicine, economics, and finance. It is emphasized that physics and informatics in these educational studies are the major disciplines around which all others are grouped. The presence of the primary disciplines greatly facilitates the organization and increases the effectiveness of the research, as it unites and substantiates all its other directions. In this article, the authors present their vision of the possibilities of organizing STEM research for students of public educational institutions in the field of electronics and instrument engineering. A specific sample of such studies is given.
PHYSICAL PROBLEMS AS ONE OF THE METHODS OF FORMING NATURAL COMPETENCES OF STUDENTS AT THE LESSONS OF STEREOMETRY
Authors:   National Ivan Ohiienko University, Smorzhevsky Yuriy , Bilyk Roman ,   Kamianets-Podilskyi Lyceum of I-III Degree “Slavutynka” оf Khmelnytskyi Regional Council, Hordiienko Irina ,   Drogobych State Pedagogical University of Ivan Franko
Published: September 2023

The article deals with the peculiarities of the formation of students’ natural competences at the lessons of stereometry. The significance of applied tasks in the educational process of secondary education as a method of diagnosing the level of mastering, consolidation, verification and control of theoretical knowledge; a means of acquiring practical skills (experimentation, design, modelling), skills of professional self-determination, implementation of the principle of polytechnicism, environmental and economic education is substantiated. The authors demonstrate some examples of problems with physical content to the topics of stereometry: “Prism” and “Pyramid”, which contribute to ensuring a solid and conscious mastery of the system of physical knowledge, practical skills and abilities by students, awareness of how physical theories, laws, regularities are applied in practice.
STEM-EDUCATION IN THE INNOVATIVE PROCESSES OF FORMING A MODERN PHYSICAL AND TECHNOLOGICAL SPECIALIST
Authors:   Kamianets-Podilskyi National Ivan Ohiienko University, Shchyrba Victor , Motsyk Rostyslav ,   Kamianets-Podilskyi National Ivan Ohiienko University, Furtel Olesia ,   Kamianets-Podilskyi National Ivan Ohiienko University
Published: September 2023

Humanity needs constant improvement. Education is also dynamic, as it must adequately respond to the new challenges of civilization, taking into account the trends and perspectives of the development of society. One of its main tasks is the introduction of educational innovations and information technologies. Based on this, the task of training highly qualified personnel for the IT industry, where dynamic changes in educational technologies are particularly striking, becomes particularly important and difficult. STEM education contributes to the successful formation of the competences of such specialists. The work shows how cooperation with stakeholders helps to solve interdisciplinary integration, which allows modernization of methodological principles, content, volume of educational material of subjects of the natural-mathematical-technological cycle, technologicalization of the learning process and the formation of educational competencies of a qualitatively new level of the physical-technological profile.
SKILLS, ABILITIES, BELIEFS: HIGHEST LEVELS COMPETENCES AND OUTLOOK OF THE INDIVIDUAL
Authors:   Ternopil Volodymyr Hnatiuk National Pedagogical University, Atamanchuk Petro
Published: September 2023

The multi-disciplinarily of STEM-integration innovations of the modern system of natural science education focuses on effective and high-quality formation of the future specialist through the prism of the formation of one’s own author’s credo as an essential indicator of his competence and worldview. Since the end of the 1990s, the problem of improving the quality of education of specialists in the field of natural sciences has become quite relevant in the educational policy of many European countries. Experience [3–13; 15; 17–22] confirms: the reform of science education on the basis of competency-based and worldview approaches can be fully resolved only under the condition of a comprehensive understanding of this problem, which involves updating state standards (learning content and educational environment), curricula, textbooks, manuals, tools, practical training etc. The formation of an individual’s natural and scientific competence takes place in the process of his mastering a set of sciences that study nature and its laws. STEM-integration of education prompts modern multi-disciplinarily to the need to optimize the process of solving the problem of managing the competence-viewpoint formation of a future specialist of any profile. The publication proves that the development of the New Ukrainian School focuses on the implementation of technologies of binary goal orientations (a specific academic discipline + its teaching method) as a means of forming a holistic natural and scientific credo of an individual: ensuring the readiness of a teenager, a young person, a specialist of any profile to study throughout all life and mastering the experience of mankind regarding the creation and use of high technologies in all possible scientific and industrial spheres of safe innovative human activity.
MODEL OF THE ORGANIZATION OF THE EDUCATIONAL PROCESS IN THE STUDY OF MODERN PROBLEMS OF QUANTUM PHYSICS
Authors:   National Pedagogical Dragomanov University, Blagodarenko Ludmila , Vasilenko Sergeiy ,   National Pedagogical Dragomanov University
Published: September 2023

The article examines the problem of ensuring the effectiveness of higher education in Ukraine in the training of specialists in the field of natural sciences, in particular, the possibility of increasing the level of teaching of the discipline “Physics”. The importance of science and high technologies for the protection of Ukrainian sovereignty and the inadmissibility of the outflow of young personnel from the country were emphasized. It was noted that solving this problem requires modernization of the educational process, especially when studying physics as the basis of natural science knowledge, without a thorough study of which it is impossible to train a qualified specialist in the field of any natural science. It was determined that in the structure of the physics course of higher education institutions, the course “Quantum physics” occupies a special place, since the knowledge of quantum physics realized and learned at the appropriate level is important for the formation of students’ general scientific picture of the world. It has been established that one of the most important goals in the education of quantum physics is the systematic familiarization of students with the possibilities and prospects of quantum technologies, as well as the theoretical problems of quantum physics, the solution of which can change the idea of the world structure. To increase the productivity of students’ assimilation of modern problems of quantum physics, a methodical model of the organization of the educational process is proposed using the example of the problem of quark confinement.
PROJECT TECHNOLOGY AS A MEANS OF PROFESSIONAL COMPETENCE DEVELOPMENT OF FUTURE TEACHERS OF PHYSICS AND MATHEMATICS
Authors:   Kamianets-Podilskyi National Ivan Ohiienko University, Panchuk Oleg , Smorzhevsky Yuriy ,   Kamianets-Podilskyi National Ivan Ohiienko University
Published: September 2023

The material of this article concerns the use of project technology by future physics teachers in their professional activities as an effective means of increasing the educational and cognitive activity of students in the process of learning physics. The new physics curricula state that the main goal of physics education is the development of personality, the formation of a scientific worldview and the corresponding style of thinking, the formation of subject, scientific-natural and key competences of students by means of physics as an educational subject. Significant potential for the development of individual abilities and independence of students is laid in research competence. Educational projects are an effective means of forming research competence in physics lessons.
FEATURES OF CONDUCTING LABORATORY WORK ON ELECTRICITY IN THE VISUAL DISTANCE EDUCATION SYSTEM
Authors:   Lesia Ukrainka East European National University, Pankevych Serhii
Published: September 2023

The article offers an introduction to the possibility of conducting demonstration and laboratory works in physics using the example of organizing work to verify the laws of serial and parallel connection. This concept can be implemented based on the use of existing equipment or with the help of cloud technologies or available Internet resources with capabilities further processing of the obtained results. This project can be successfully used by teachers of any educational institutions and levels of education to conduct laboratory work by students of a school, college or other educational institution. Laboratory work, which is one of the forms of learning, and which is one of the accurate and reliable methods of assessing practical knowledge, skills and abilities, can be used in conditions of distance learning, quarantine or martial law, such as the quarantine introduced in 2020 for prevention of the spread of the coronavirus disease COVID-19. Under such conditions, educational institutions can use any teaching methods, which will ensure the effectiveness of face-to-face distance education.
PEDAGOGICAL PRACTICE IN THE SYSTEM OF PROFESSIONAL DEVELOPMENT OF A FUTURE SPECIALIST SECONDARY EDUCATION (PHYSICS)
Authors:   Kamianets-Podilskyi National Ivan Ohiienko University, Poveda Tetiana , Poveda Ruslan ,   Kamianets-Podilskyi National Ivan Ohiienko University, Lishinsky Igor ,   Vasyl Stefanyk Precarpathian National University
Published: September 2023

The article analyses organizationally-methodical principles of pedagogical practice in higher educational establishments, shows its significance in the system of the professional development of future physics teachers. It marks that effective realization of pedagogical practice depends on the proper level of organization and management of students’ activity. It proves, that the results of pedagogical practice comes forward as an index of student readiness to future professional activity and at the same time they uncovers defects and gaps in students’ knowledge, which are necessary to consider and correct in professional education. Describes the basic part of the author`s program pedagogical practice for the students- future physics teachers, developed by authors in co-authorship with the experienced teachers team. Highlights some specifics of organization of pedagogical practice in higher educational establishments in other countries of the world. Shows prospects of pedagogical practice of students in connection with reformation of higher education in Ukraine.
A Blockchain-based secure Internet of Medical Things framework for smart healthcare
Authors: Dalal Surjeet , Lilhore Umesh Kumar , Simaiya Sarita , Sharma Ashish , Jaglan Vivek , Kumar Manish , Jangra Monika , Goyal Nitin , Rana Arun Kumar
Published: September 2023

The Internet of Medical Things (IoMT) industry has grown lightning during the estimated time frame. Privacy and security are essential concerns given the scale and widespread use of IoMT networks. Blending healthcare data in one place storage device to prepare an effective predictive model, on the other hand, increases more severe security and privacy issues, ownership, and regulation. An advanced system is required to enhance information utilization while restricting privacy issues. This research presents a new architecture to address security and privacy challenges in e-healthcare services in Healthcare 5.0. This paper integrates the distributed ledger technology (DLT) with IoMT. This integration has become necessary due to the growing demand for e-health-related technologies and services. The proposed solution in this research is based on a Blockchain framework to enhance medical data privacy and integrity. This research evidence found that Blockchain can overcome IoMT privacy and data protection. The proposed framework has far-reaching consequences for the medical field. The proposed method has reduced Commit time by up to 10 seconds, and Commutative probability has been gained to 88%. It has advantages, including faster data exchange, less duplication of effort, and more secure patient information.