bluuebunny/crossref_metadata_2025 huggingface dataset:
Kombinasi Tomek-Link Dan Smote Untuk Mengatasi Ketidakseimbangan Kelas Pada Credit Card Fraud
Authors: Nugraha Wahyu , Risdiansyah Deni , Purwaningtias Deasy , Hidayatulloh Taufik , Suhada Satia
Published: May 2023

Meningkatnya aktivitas perdagangan secara online atau e-commerce telah menjadi trend saat ini. Akibatnya kejahatan yang paling sering terjadi adalah penipuan kartu kredit (credit card fraud) atau carding. Kurang lebih terdapat 1.000 kasus penipuan dalam satu juta transaksi sehingga data tersebut dikumpulkan dalam bentuk dataset credit card fraud risk. Pada beberapa kasus, kelas minoritas justru lebih penting untuk diidentifikasi daripada kelas mayoritas seperti pada kasus transaksi credit card. Pada penelitian ini untuk menangani masalah ketidakseimbangan kelas pada dataset credit card fraud risk maka diusulkan metode resampling yaitu pendekatan level data Tomek-Link dan SMOTE dengan model klasifikasi C5.0. Penelitian ini dilakukan untuk meningkatkan nilai akurasi AUC pada model algoritma klasifikasi C5.0. Hasil penelitian menunjukkan bahwa metode usulan mampu meningkatkan nilai AUC sebesar 0,134 dibandingkan tanpa metode resampling.
Strategi Investasi pada Aset Cryptocurrency
Authors: Huda Nurul , Lake Yeremias , Sitorus Detson Ray Halomoan
Published: May 2023

Tujuan dilaksanakannya penelitian ini adalah untuk mengetahui apa saja strategi yang dapat diterapkan oleh para investor aset cryptocurrency agar mendapatkan tingkat return yang optimal. Pendekatan metode yang digunakan dalam penelitian ini adalah kualitatif library research. Sumber data yang dijadikan acuan dalam penelitian ini adalah data yang berasal dari artikel, buku, dan surat kabar dari media elektronik dengan kata kunci pencarian: cara berinvestasi crypto, teknik berinvestasi crypto dan strategi berinvestasi crypto. Data yang diperoleh kemudian dianalisis menggunakan software NVivo 10 Plus. Dari hasil penelitian ini didapatkan beberapa strategi berinvestasi pada aset cryptocurrency yaitu: menentukan tipe dan tujuan investasi, mempelajari aset cryptocurrency yang diminati, memilih aset cryptocurrency yang terpercaya, memilih exchange dan wallet yang aman, memperhatikan biaya layanan dan spread, jangan fears of missing out (FOMO), membeli pada saat harga rendah (support) dan jual ketika harga tinggi (resistance), melakukan diversifikasi dan migitasi risiko, berinvestasi di berbagai platform, tidak mudah panik dan berorientasi pada hold on for dear life (HODL), senantiasa mengikuti informasi perkembangan cryptocurrency, mengikuti dan bergabung pada komunitas cryptocurrency, dan rutin melakukan dollar-cost averaging (DCA).
Implementasi Multiplier Pajak Terhadap Produk Domestik Bruto (PDB) Di Indonesia Tahun 2010 s/d 2022
Authors: Hendarsih Ida
Published: May 2023

Penelitian ini bertujuan untuk menganalisis tentang Implementasi Multiplier Pajak Terhadap Produk Domestik Bruto Di Indonesia Tahun 2010 s/d 2022. Metode yang digunakan ialah kuantitatif dengan menggunakan analisis untuk melakukan Analisa apakah Multiplier Pajak berlaku di Indonesia. Kebijakan fiskal sebagai sarana untuk mendorong pembangunan ekonomi memiliki beberapa tujuan untuk dicapai. Beberapa tujuan tersebut antara lain meningkatkan investasi, mengarahkan investasi ke bidang sosial, menambah kesempatan kerja, menjaga stabilitas ekonomi dalam menghadapi ketidakstabilan internasional, mencegah inflasi, dan meningkatkan jumlah pendapatan nasional.Variabel yang dianalisa adalah Realisasi Penerimaan Pajak sebagai variabel bebas (X) dan Produk Domestik Bruto sebagai variabel terikat (Y). Hasil penelitian menunjukkan bahwa diperoleh bahwa nilai t hitung sebesar 12,242 dimana nilai tersebut lebih besar dari t tabel, yaitu 2,20099 sehingga dapt dikatakan bahwa Realisasi Penerimaan Pajak berpengaruh positif terhadap PDB. Sedangkan nilai R Square sebesar 0,932 yang berarti bahwa Variabel bebas Realisasi Penerimaan Pajak berpengaruh sebesar 0,932 atau 93,2% terhadap Variabel tergantung PDB, sedangkan sisanya sebesar 0,68% dipengaruhi oleh variabel lain diantaranya adalah konsumsi rumah tangga (C), investasi (I), pengeluaran pemerintah (G), dan net ekspor (X-M).
TRANSITIONAL PROCESSES INVESTIGATION OF INDUCTION MOTOR STARTING WITH LAUNCH RHEOSTATS IN THE PHASE ROTOR CIRCLE
Authors: Kachura Oleksii , Kolychev Sergey , Syanov Olexander
Published: May 2023

An induction motor electric drive (IM) is the most popular in industry and agriculture. This is result the ease of manufacture and operation, smaller than DC motors weight, dimensions, cost and reliability. Induction motors are divided into short-circuited (IMS) and with phase rotor (IMP). IMSs are characterized by high starting currents, torque and mainly operate in static mode. IMP has improved regulating properties, but they are characterized disadvantages as greater weight, dimensions and cost.

In addition to the main static mode of operation, the IMS is often operated in transitional modes. Transitional modes occur when change shaft loading, power supply, circuit frequency, rotation direction when connected and disconnected from the network, when changing the parameters of the motor. The most difficult transitional modes are the processes of start-up, breaking, reverse and reconnection. There are current jumps in these modes and their duration depends on moment of inertia of all mechanism. Current jumps lead to the shocks of the drive, increased efforts in the windings of the stator and rotor. The electromagnetic torque in transitional modes has oscillation character with significant amplitudes, and the maximum rotor torque achieves five-time of nominal. Repeated and sometimes variable values of the electromagnetic torque IM in transitional modes cause accelerated wear of the mechanism, equipment and the motor.

In mechanisms with repeated modes of operation (crane mechanisms etc.) IMP are widely used. In this case, additional start-up rheostats and contactors are required to limit current jumps and electromagnetic torque and as a result increase the smooth operation of the electric drive. Thus, the study of transitional processes in IMP in repeated modes is an actual task.
USING OF THE MATHEMATICAL PLANNING OF THE EXPERIMENT FOR THE QUANTITATIVE ASSESSMENT OF THE METHOD OF PHYTOREMEDIATION RESTORATION OF SOILS CONTAMINATED WITH PETROCHEMICALS
Authors: Cherniak Larysa , Mikhyeyev Olexandr , Madzhd Svitlana , Dmytrukha Tetiana , Petrusenko Valentyna , Lapan Oksana
Published: May 2023

Nowadays, the problem of soil contamination with oil products has global character. The issue of soil quality is particularly acute in technogenically loaded territories, which, in particular, include the territories of airports. To reduce the negative impact of petrochemicals on the condition of the soils and to restore their quality characteristics, various methods of destruction of petroleum hydrocarbons in contaminated soils are used. In recent years, biological methods of cleaning soils from oil products are gaining more and more popularity. These methods have a number of advantages over physic-chemical and mechanical methods of restoring the quality of the soils contaminated with petrochemicals. However, the most popular is the phytoremediation method. In our research, we have chosen this method of cleaning soils contaminated with aviation fuel, as it is one of the most ecologically safe, cost-effective, accessible and promising of the existing methods of restoring the quality of soils contaminated with petroleum products. The purpose of the work was to evaluate the use of phytoremediation to restore the quality characteristics of soil contaminated with aviation fuel, using the method of mathematical planning of the experiment, namely the method of full factorial experiment, which allows obtaining a statistical model of the influence of the factors involved, namely the presence of plants and petroleum products. To achieve the goal, the phytoremediation technology of soil samples artificially contaminated with TS-1 aviation kerosene was applied. The plants chosen for the study were oats (Avena Sativa L.) and timothy (Phleum L.). The change in the level of phytotoxicity of the soil samples after the application of phytoremediation technology was determined using a growth test with watercress (Lepidium sativum).

The obtained data showed that on the 10th day of observation, the negative impact of aviation fuel (X2) and the positive impact of plants (X1) is observed. At the same time, strengthening the positive impact of plant action and reducing the negative impact of aviation fuel in the interaction of these two factors X1 and X2. Analyzing the obtained results, we can draw a conclusion about the possibility of using the technology of phytoremediation of oil-contaminated soils, which is quantitatively evaluated using the method of a full factorial experiment.
INFLUENCE OF BIOLOGICALLY ACTIVE SUBSTANCES AND LACTULOSE PREBIOTICS ON THE FERMENTATION PROCESSES WITH THE PARTICIPATION OF LACTIC ACID BACTERIA
Authors: Korniienko Iryna , Gulyaev Vitaliy , Kravets Valeriia , Anatskyi Andriy , Chernenko Yana , Filimonenko Olga , Kovalenko Alla , Korniienko Yuriy
Published: May 2023

A study of the influence of biologically active substances (fat-soluble vitamins, omega-3 fatty acids and vitamin D, as well as water-soluble vitamin C), prebiotic lactulose on the titer of viable cells of lactic acid bacteria was carried out for the further use of the obtained research results in the biotechnology of functional food products, obtained thanks to the successful course fermentation processes. Experiments have proven the expediency of using biologically active substances as stimulators of the growth of lactic acid bacteria, which contribute to the increase of biomass and support of their vital activity for 192 hours. Research has established that at the end of the experiment (192 hours), the highest titer of lactic acid bacteria was recorded in samples 1, 2, 3, 4, to which the prebiotic lactulose was added in the amount of 1, 3, 5 and 7 %, respectively. This is due to the fact that the prebiotic acts as a specific substrate that is used by the symbiosis of pure cultures of lactic acid bacteria for a long time, unlike milk sugar. Analyzing the obtained data, it is indicated that thanks to the addition of fat-soluble nutrients omega-3 fatty acids and vitamin D, as well as water-soluble vitamin C, there is a significant increase in the titer of viable cells of probiotic cultures at 6 and 24 hours of the experiment, although at the end of the experiment (by 192 hour) in these samples, an insignificant decrease of this indicator was recorded — from 10 to 8.9 log cells/ml. In the control sample (without the addition of biologically active substances and lactulose prebiotic), a significant decrease in the titer of viable cells of lactic acid bacteria was noted, compared to the test samples to which nutrients were added. The titer of lactic acid bacteria cells in the control sample was reduced by 192 hours from 8.5 to 5.5 log cells/ml. It is recommended to use the studied nutrients in the indicated concentrations to stimulate the growth and maintain the viability of lactic acid bacteria cultures in the technology of production of functional food products.
Percepções de treinadores de ginástica artística sobre a formação inicial em Educação Física em Instituições Privadas de Ensino Superior
Authors: Machado de Oliveira Lucas , Ciampolini Vitor , Milistetd Michel , Pizani Juliana
Published: May 2023

Este estudo buscou analisar as percepções de treinadores de ginástica artística sobre a graduação em Educação Física em Instituições Privadas de Ensino Superior. Adotou-se uma abordagem qualitativa, sendo entrevistados cinco treinadores filiados à Federação de Ginástica de Santa Catarina. Durante as entrevistas, foram abordados indicadores como: trato com o conteúdo ginástico na instituição de ensino e lacunas da formação inicial. O tratamento dos dados ocorreu por meio da análise temática proposta por Braun e Clarke (2006). Para os treinadores, a aplicação de conhecimentos na atuação profissional e a estrutura das instituições de ensino são aspectos destacados positivamente. Em contrapartida, a disciplina de ginástica, o estágio curricular e a falta de projetos de pesquisa e extensão são componentes que limitaram o impacto da formação inicial. Esses dados reforçam a necessidade de interlocução entre o ambiente acadêmico e o de prática profissional para promover um percurso formativo mais significativo.
Análise da paixão e do perfeccionismo em atletas brasileiros de cheerleading
Authors: Souza Layssa Gabrieli de , Contreira Andressa Ribeiro , Fiorese Lenamar
Published: May 2023

O estudo objetivou analisar a paixão e o perfeccionismo em atletas brasileiros de cheerleading, buscando especificamente correlacionar estas variáveis e compará-las em função do sexo, tempo de experiência e região. Foram sujeitos 105 atletas (41 homens e 64 mulheres), média de idade 21,61 (± 2,12), participantes do Campeonato Nacional Cheer e Dance 2019. Foram aplicados os instrumentos Escala da Paixão e Escala Multidimensional de Perfeccionismo no Esporte. As análises foram realizadas pelos testes U de Mann Whitney e Coeficiente de Correlação de Spearman (p<0,05). Foram observados valores elevados de Paixão Harmoniosa (Md=5,80) e moderados de Paixão Obsessiva (Md=4,20). Não foram identificadas fortes características de perfeccionismo, mas houve destaque da dimensão Padrão Pessoal e Organização (Md=3,29). As comparações em função do sexo apontaram diferença no Padrão Pessoal e Organização (p=0,013), com valores mais elevados para o sexo masculino. Em função do tempo de experiência, ocorreu diferença no Critério da Paixão (p=0,038), com valor superior para os atletas que praticavam há mais de 18 meses. Em função da região, a Paixão Harmoniosa (p=0,023) foi mais elevada para os atletas da Região Sul. A Paixão obsessiva apresentou mais correlações com as dimensões do perfeccionismo (0,253<r<0,302). Os atletas brasileiros de cheerleading se mostraram apaixonados harmoniosamente pela modalidade, demonstrando níveis moderados de perfeccionismo.
ASUHAN KEBIDANAN PADA Ny “P” DENGAN WOOLWICH MASSAGE (PIJAT PAYUDARA) UNTUK MENINGKATKAN PRODUKSI ASI PADA IBU NIFAS
Authors: Aprianti Ety , Suciana Sri , Wulandari Wulandari
Published: May 2023

Permasalahan yang sering terjadi pada ibu nifas adalah ASI sedikit bahkan ASI tidak keluar sehingga menyebabkan kegagalan dalam menyusui ASI Eksklusif.Upaya yang dapat dilakukan untuk mengatasi produksi ASI yang sedikit dan tidak lancar adalah dengan melakukan pijat woolwich.Pijat Woolwich adalah pijatan yang dilakukan untuk merangsang produksi ASI. Asuhan ini bertujuan untuk memberikan dan melaksanakan Asuhan Kebidanan pada ibu nifas melalui pendekatan pola pikir manajemen asuhan kebidanan secara komprehensif dan mendokumentasikannya dalam bentuk SOAP. Asuhan ini menggunakan desain penelitian observasional deskriptif dengan pendekatan studi kasus yang dilaksanakan di Praktik Mandiri Bidan “S” Kota Padang pada tanggal 16 – 25 Maret 2022. Subjek dalam asuhan ini adalah ibu nifas normalNy.”P hari ke 1-10, dan tidak memiliki penyakit kanker payudara (ca mamae).Data dikumpulkan dengan menggunakan data primer dan sekunder, dengan bantuan alat seperti format pengkajian, kuisioner, buku KIA alat TTV, kursi, minyak zaitun, dan handuk.Hasil asuhan kebidanan berhasil diberikan pada Ny.P, produksi ASI ibu meningkat banyak dan lancar setelah diberikan Pijat Woolwich.Tidak ditemukan adanya komplikasi dan semua asuhan nifas normal dapat diberikan kepada ibu dengan optimal. Kesimpulan dari asuhan Pijat Woolwich pada ibu nifas efektif mengatasi keluhan ASI sedikit dan tidak lancar serta ibu merasakan lebih rileks dan nyaman setelah dilakukan Pijat Woolwich.Diharapkan bagi bidan praktik mandiri dapat menerapkan asuhan dengan melakukan pijat woolwich untuk meningkatkan produksi ASI pada ibu nifas.

Kata Kunci : Nifas, Pijat Woolwich, SOAP
IMPLEMENTASI DIGITAL MARKETING PADA UMKM DI KABUPATEN PASAMAN SAAT ERA REVOLUSI INDUSTRI 4.0
Authors: Resti Okfi , Illahi Arridha
Published: May 2023

Digital marketing adalah program yang menawarkan kesempatan untuk mempromosikan dan mencari peluang pasar melalui media digital online. Digital marketing akan memberikan kemudahan bagi para pelaku usaha untuk mengidentifikasi semua kebutuhan dan minat pelanggan, baik itu untuk usaha besar, kecil maupun menengah. Saat ini, pemasaran dan penjualan produk UMKM masih dilakukan dengan mengikuti berbagai macam pameran produk UMKM yang diadakan oleh pemerintah maupun perusahaan yang menyediakan fasilitas pameran, melalui broadcast pesan dan hanya menanti para pengunjung datang ke toko. Penelitian ini bertujuan untuk mengetahui bagaimana penerapan pemasaran digital pada UMKM di era Revolusi Industri 4.0. Analisis dalam penelitian ini menggunakan metode deskriptif kuantitatif dengan teknik pengumpulan data menggunakan kuesioner. Populasi dalam penelitian ini adalah UMKM di Pasaman dengan jumlah sampel sebanyak 52 UMKM. Analisis data dilakukan dengan empat tahap, yaitu editing, coding, tabulasi, dan analisis data. Hasil penelitian menjelaskan bahwa implementasi pemasaran digital dalam pengembangan industri 4.0 UMKM di Pasaman belum terlaksana dengan maksimal karena sumber daya manusia yang memahami pemasaran digital, pelatihan yang kurang atau belum maksimal, tidak memiliki foto produk yang baik, kurangnya modal usaha, strategi pengembangan yang belum terpenuhi, kurangnya informasi yang menyebabkan UMKM tertinggal dari perkembangan untuk memajukan usahanya.

Kata Kunci: Digital Marketing, UMKM, Industrial Revolution 4.0
STUDY OF THE EFFICIENCY OF THE APPLICATION OF BIOGAS INSTALLATIONS AT ENTERPRISES OF THE AGRICULTURAL COMPLEX
Authors: BABENKO Oleksiy , KUTINA Maryna , PROTSENKO Lyudmila ,   Khmelnytskyi National University
Published: May 2023

The issue of energy saving is becoming more and more urgent, taking into account the destruction of power generating facilities. One of the energy saving options is the use of alternative energy sources. This is not only an economic benefit for consumers, but also a reduction in the load on electrical networks and maintenance of the reliability of the power system due to the decentralization of electricity generation in wartime conditions. Alternative sources of electricity include energy from the sun, wind, seas, rivers, biomass, and EarthвЂ™s heat. At the same time, their effectiveness depends on many factors. Since Ukraine has a powerful industrial agricultural complex, its share in GDP is about 10% and its share is growing annually, therefore, an urgent task is to analyze the feasibility of using biogas plants at livestock, agro-processing and municipal waste enterprises. We should not forget about the environmental friendliness of electricity production using biogas plants, which will ensure the preservation of the environment, and therefore the health of descendants. Enterprises of the agro-industrial complex for the production of products require significant amounts of electrical energy, along with this, the waste of the activities of such enterprises is sewage and organic waste in landfills, from which biomass can be obtained. Biomass, in turn, is the raw material for the production of biogas, which is needed by biogas plants to generate electrical energy. Analysis of the amount of waste from agro-industrial complex enterprises, which can be used as raw materials for the production of biogas, showed that Ukraine has prospects for the development of biogas energy, based on a powerful agricultural sector. The use of biogas plants will provide electricity, heat and hot water to enterprises of the agrarian complex, and will reduce the load on traditional energy sources.
INTELLIGENT RADIO INTERFACE WITH THE SUPPORT OF ARTIFICIAL INTELLIGENCE
Authors: VASYLKIVSKYI Mikola , VARGATYUK Ganna , BOLDYREVA Olga ,   Vinnytsia National Technical University
Published: May 2023

The peculiarities of the implementation of the 6G intelligent radio interface infrastructure, which will use an individual configuration for each individual subscriber application and flexible services with lower overhead costs, have been studied. A personalized infrastructure consisting of an AI-enabled intelligent physical layer, an intelligent MAC controller, and an intelligent protocol is considered, followed by a potentially novel AI-based end-to-end (E2E) device. The intelligent controller is investigated, in particular the intelligent functions at the MAC level, which may become key components of the intelligent controller in the future. The joint optimization of these components, which will provide better system performance, is considered. It was determined that instead of using a complex mathematical method of optimization, it is possible to use machine learning, which has less complexity and can adapt to network conditions. A 6G radio interface design based on a combination of model-driven and data-driven artificial intelligence is investigated and is expected to provide customized radio interface optimization from pre-configuration to self-learning. The specifics of configuring the network scheme and transmission parameters at the level of subscriber equipment and services using a personalized radio interface to maximize the individual user experience without compromising the throughput of the system as a whole are determined. Artificial intelligence is considered, which will be a built-in function of the radio interface that creates an intelligent physical layer and is responsible for MAC access control, network management optimization (such as load balancing and power saving), replacing some non-linear or non-convex algorithms in receiver modules or compensation of shortcomings in non-linear models. Built-in intelligence has been studied, which will make the 6G physical layer more advanced and efficient, facilitate the optimization of structural elements of the physical layer and procedural design, including the possible change of the receiver architecture, will help implement new detection and positioning capabilities, which, in turn, will significantly affect the design of radio interface components. The requirements for the 6G network are defined, which provide for the creation of a single network with scanning and communication functions, which must be integrated into a single structure at the stage of radio interface design. The specifics of carefully designing a communication and scanning network that will offer full scanning capabilities and more fully meet all key performance indicators in the communications industry are explored.
OPTIMAL CONTROL OF THE WELL DEEPENING PROCESS CONSIDERING THE CONDITION OF THE BITTING EQUIPMENT
Authors: GORBIYCHUK Mykhail , KROPYVNYTSKYI Dmytro ,   Ivano-Frankivsk National Technical University of Oil and Gas
Published: May 2023

Since the process of mechanical deepening of the well is non-stationary, stochastic, evolving in time and largely unreproducible, there are no analytical dependencies for determining the initial speed and the change rate of the estimation of the state of the bit equipment, therefore, empirical models of the polynomial form were applied, which were obtained according to the conducted experimental research plan, the matrix of which is appropriate for a full two-factor experiment, since two parameters were chosen as controlling influences: the axial load on the bit and the rotor speed. The software has been developed, using MatLab environment to calculate the values of the initial speed of penetration and the rate of change of the assessment of the bit arming state. To determine the parameters of the mathematical model, the method of least squares was used, in accordance with which the square of the residual function was minimized. The values of the parameters of the found dependencies were used as the source material for the software implementation of the solution to the problem of finding the optimal mode of the well deepening process, considering the anticipatory wear of the bit armature. Since the objective function describing the criterion of optimality of the minimum cost of one meter of penetration is non-linear in relation to the control influences, and the restrictions on the magnitude of the axial load and the frequency of rotation of the rotor are two-sided, the method of sequential quadratic was implemented to solve the optimization problem with the MatLab environment programming. During the process of implementing this task, the optimal control actions and the final value of the assessment of the state of the drill equipment were determined according to the criterion of effective completion of the drills. As a result of the research, simulation modeling of the solution of the optimization problem was carried out, which showed a decrease in the cost of a meter of penetration by 2.8 times.
RESEARCH OF THE CHANGE OF THE MOTION MODES OF THE WORKING ARRAY IN A TURNING MACHINE WITH AN ADDITIONAL MOVEABLE SLIDING LINK DEPENDING ON THE CHANGE OF DESIGN FEATURES
Authors:   Kyiv National University of Technology and Design, Open International University of Human Development вЂњUkraineвЂќ, ZALYUBOVSKYI Mark , PANASYUK Igor ,   Kyiv National University of Technology and Design, LYCHOV Dmitro ,   Open International University of Human Development вЂњUkraineвЂќ, KOSHEL Ganna ,   Open International University of Human Development вЂњUkraineвЂќ
Published: May 2023

With the help of the SolidWorks automated design system, analytical studies of the rolling machine with complex spatial movement of the working capacity of the вЂњTurbulaвЂќ type, which contains an additional moving link of the slider in its kinematic chain, were performed. On the basis of the analytical studies, the relationship between the change in the modes of movement of the working array in the middle of the container, the value of the angular velocity of the drive shaft, the scale standard size and the ratio of the interaxial distance of the container to the interaxial distance of the forks was determined. The classification of the movement modes of the working massif is presented, in particular, which should include cascade, mixed and waterfall movement modes. Each movement mode corresponds to the implementation of the corresponding types of felting technological operations or mixing of loose fine-dispersed substances. The effect of changing the length of the working capacity, which is characterized by the ratio of the interaxial distance of the working capacity to the interaxial distance of the leading or driven forks of the machine, on the change in the modes of movement of the working array has been established. Mathematical dependencies have been obtained for determining the maximum angular velocity of the drive shaft of the вЂњTurbulaвЂќ type rolling machine with an additional movable slider link, which will correspond to the formation of the necessary mode of movement of the working array. The presented results of analytical studies can be applied in the relevant design bureaus of machine-building enterprises at the stage of designing equipment with complex spatial movement of working capacities and felting technological processes.
RESEARCH OF COMPUTATIONAL MATHEMATICAL MODELS FOR TECHNICAL SYSTEMS
Authors: ZAVGORODNIY OLEXIY , LEVKIN DMYTRO , KOTKO YANA ,   State Biotechnological University, MAKAROV OLEXANDER ,   V.N. Karazin Kharkiv National University
Published: May 2023

In the theory of analysis and synthesis of technical systems, mathematical modelling and optimization of multilayer systems containing sources of physical fields occupy an important place. This is due to the fact that their state is described by means of boundary value problems with multidimensional differential equations. To solve the boundary value problems and implement the process of optimizing the technical parameters of the modelled systems, it is necessary to conduct interdisciplinary studies of computational and applied optimization mathematical models. Fulfilment of the conditions for the existence of a single solution to boundary value problems by default is possible only when the object of study is a single-layer material under the action of load sources. If it is necessary to calculate and optimize the technical parameters of a multilayer material subjected to load sources, then it is impossible to immediately guarantee the correctness of the calculated and applied optimization mathematical models, since it is necessary to obtain the conditions for the existence and uniqueness of solutions to boundary value problems with systems of differential equations. Maximizing the technical parameters of load sources and averaging the characteristics of material layers will lead to approximate values of the objective function and technical parameters of the modelled system, which leads to irrational consumption of energy and heat resources and uncontrolled losses, and useless losses of the test material in the technological process. The article presents the conditions for the correctness of multipoint boundary value problems with multidimensional differential equations describing the state of a multilayer material under thermal action. It is advisable to use these studies to substantiate the correctness of other technical and biotechnological systems, which will increase the accuracy of the implementation of applied optimization problems of economic and mathematical modelling.
DIAGNOSIS OF POWER OIL IN PUMPING UNITS COOLING SYSTEMS OF POWER PLANT EQUIPMENT
Authors: ZAITSEV SERGEY , ТIKHENKO VALENTIN ,   Odesa Polytechnic National University
Published: May 2023

The article presents the results of improving the methods for diagnosing the energy oil “Tp-30” of the pumping unit of the NPP equipment coolant circulation system. When studying the physicochemical and thermophysical properties of this oil, it was found that: the indicators “acid number”, “water content”, “content of mechanical impurities”, “content of the additive “Ionol”, “flash point”, “kinematic viscosity” correspond to the established standards. When determining the concentration of the additive “Ionol” in the sample of this oil: the method of adding the additive “Ionol” is used; in the obtained calculation formula, the values of the distribution coefficient for the additive “Ionol” in the system “turbine oil – additive “Ionol” – liquid extractant” are not used, which simplifies the study of the content of this additive in turbine oil. The water content in mineral turbine oil, determined by gas chromatography and coulometric titration with K. Fischer’s reagent, exceeds the water content in this oil, determined by thermal extraction. When studying the effect of liquid extraction temperature on additives “Ionol” (when determining its content in a given oil), it was found by gas chromatography that: the dependence of the distribution coefficients Ki on temperature t in the temperature range 15–75 0С can be expressed by the equation lnKi = А/(t+273) – B ; It is recommended to extract the Ionol additive from this oil at a temperature of (20 ± 2) °С or at a temperature of (65 ± 10) °С. When studying the effect of the chemical nature of the extractant on the ability to extract the “Ionol” additive from this oil, it was found that: ethanol, isopropanol, acetonitrile can be used as extractants of the “Ionol” additive, and the mixture “acetonitrile – water” cannot be recommended as such extractant. The results obtained can be used to improve the method of diagnosing mineral turbine oil “Tp-30” of the pumping unit of the coolant circulation system of the equipment of the second circuit of NPP with a pressurized water power reactor.
STUDY OF THE TECHNOLOGICAL SCHEME OF TOMATO PASTE DRYING AND SAFETY CONTROL ACCORDING TO THE PRINCIPLES OF HACCP
Authors: ZUBKOVA KATERYNA , STOYANOVA OLHA , SHERSTIUK VOLODYMYR ,   Kherson National Technical University
Published: May 2023

Drying fruits and vegetables is a process in which the removal of moisture stops the activity of microorganisms that cause spoilage, as well as the activity of enzymes, thus preserving the structure, organoleptic characteristics and nutritional value of the raw material. The conditions of drying and grinding during processing of powders strongly influence the qualitative characteristics of biological materials. Ensuring the quality of vegetable powders requires constant improvement of appropriate drying technologies, which will allow to significantly reduce the duration of processing and improve the quality of the finished product. Solving the problem of tomato powder production is possible by improving the technological scheme and drying by spraying. The main advantage of a vacuum-type dryer is the high quality of the finished product when drying heat-sensitive, easily oxidized raw materials. The paper proposes a technological scheme for drying tomato paste by the spray method to obtain a powder with improved consumption properties, due to the preservation of vitamins, valuable macro- and microelements. A block diagram of the control of the manufacturing process and the HACCP plan (analysis and control of hazardous factors) of tomato paste powder with the establishment of control and control-critical points on it are given, which allow to fully control the entire process of the production of a safe food product in accordance with the principles of HACCP. The main advantage of a vacuum-type dryer is the high quality of the finished product. Dehydration of tomato paste granules, taking into account the maximum preservation of valuable nutrients in the product at different coolant temperatures, led to the high quality of the finished product.
STUDY OF THE EFFECT OF PRECURSORS ON THE STRUCTURAL CHARACTERISTICS OF SYNTHETIZED ZnO NANOPARTICLES
Authors:   Kherson National Technical University, ASAULYUK TATYANA , SARIBYEKOVA YULIA ,   Kherson National Technical University, SEMESHKO OLGA , KULISH IRINA ,   Kherson National Technical University
Published: May 2023

In this work, zinc oxide (ZnO) nanoparticles were obtained by direct precipitation method in aqueous solution using two different precursors — zinc acetate dihydrate and zinc chloride — under the same synthesis conditions. The effect of the selected precursors on the structural parameters of each synthesized sample was evaluated using X-ray diffraction (XRD) analysis. The results of the analysis demonstrate the synthesized ZnO phase with a hexagonal wurtzite structure and the average crystallite size of 28 nm for both studied samples. Based on the XRD data, the interplanar spacing, crystallite size, dislocation density, and micro strain were determined for different crystallographic planes. Analysis of the obtained values shows slight differences in the formed crystalline materials depending on the used precursor. The calculated structural parameters of the synthesized ZnO nanoparticles are in good agreement with the standard reported data (JCPDS 36-1451). The effect of selected precursors on the lattice constants, unit cell volume, Zn–O bond length, and crystallinity of synthesized ZnO samples was studied. It was established that the sample obtained from the zinc acetate dihydrate precursor is characterized by the absence of impurities and higher crystallinity (93%) compared to the sample synthesized from zinc chloride, the crystallinity of which is 86%. The results are of practical value for simple synthesis of nano dispersed forms of ZnO and its possible application in textile finishing.
DETERMINATION OF THE QUALITATIVE INFLUENCE OF FACTORS ON THE SENSITIVITY OF THE CAPACITIVE HUMIDITY SENSOR OF A TWO-LAYER STRUCTURE BASED ON MULTIFACTOR DISPERSION ANALYSIS
Authors:   Vinnytsia National Technical University, KRYLIK LYUDMILA
Published: May 2023

A multifactorial dispersion analysis was applied in order to qualitatively assess the influence of the following factors: thickness of the moisture-sensitive layer; the thickness of the polymer coating as a protective layer; the concentration of the NaCl salt solution as an adsorbent material and their combined effect on the sensitivity of the capacitive humidity sensor of the two-layer structure. Capacitive humidity sensors of a two-layer structure, made on a sitall substrate, served as experimental samples. The copper film, which forms the covers of the capacitive humidity sensors, is applied to the surface of the sitall substrate in the form of a meander. In the developed design, the moisture-sensitive layer is hygroscopic salt, which performs the function of a dielectric. A moisture-absorbing film of polymethylmethacrylate serves as a protective layer. A multifactorial plan is developed for the case of three qualitative factors. Using multifactorial dispersion analysis, it was proved that the response of the model, that is, the sensitivity of the capacitive humidity sensor of the two-layer structure, is influenced by such factors as the thickness of the protective layer, the concentration of the NaCl salt solution, as well as the combined effect of factors such as the thickness of the moisture-sensitive layer + the concentration of the salt solution; the thickness of the protective layer + concentration of the salt solution. That is, the difference in the response values of the model is related to the change in the value of the factor and cannot be caused only by its random nature. However, the response of the model is significantly affected by the combined effect of the factor − the thickness of the protective layer + the concentration of the salt solution. In this case, the value of Fisher’s criterion, which is observed in the experiment, significantly exceeds the critical value of Fisher’s criterion F >Fkr (13.01>4.49). The influence of such factors as the thickness of the moisture-sensitive layer; the thickness of the moisture-sensitive layer + the thickness of the protective layer; the thickness of the moisture-sensitive layer + the thickness of the protective layer + the concentration of the salt solution is insignificant, that is, the difference in the response values of the model is due to its random nature. Using the dispersion analysis of the influence of the factor, it was proved that the sensitivity of capacitive humidity sensors is affected not only by the concentration of the NaCl salt solution, which was used to create a moisture-sensitive layer, but also by the design of the sensor.
COMPARISON OF RESULTS OF NUMERICAL ANALYSIS OF SIMULATION OF CYBERPHYSICAL BIOSENSOR SYSTEMS
Authors:   University of Bielsko-Biala, MARTSENYUK VASYL , ANDRUSHCHAK IGOR ,   Lutsk National Technical University, KOZODII NATALIIA ,   Ternopil Ivan Pului National Technical University, KRAVCHYK YURII ,   Khmelnytskyi National University, SVERSTIUK ANDRIY ,   Horbachevsky Ternopil National Medical University, PALANIZA YURI ,   Ternopil Ivan Pului National Technical University
Published: May 2023

The article compares the results of numerical modeling of mathematical models of cyber-physical biosensor systems using lattice difference equations with time delay on hexagonal and rectangular lattices. The main attention is paid to the mathematical description of the dynamics of a discrete population in combination with the dynamic logic of the studied models. Lattice difference equations with delay are proposed for modeling the antigen-antibody interaction in hexagonal and rectangular biopixels. Similar to the diffusion phenomenon, spatial operators are considered to model the interaction between biopixels. The paper compares the results of numerical modeling of processes occurring in biopixels of cyberphysical biosensor systems in the form of phase plane images and lattice images of the probability of antigen-antibody bonds. Based on the obtained experimental results, a comparative analysis of the stability of mathematical models was carried out using lattice difference equations on hexagonal and rectangular lattices for cyberphysical biosensors.
METHOD OF LOCAL RESTORATION OF SEGMENTS OF INFORMATION SIGNALS
Authors: VOLOSHKO Anatoly , DZHERIA Tetiana ,   National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”
Published: May 2023

The use of centralized and decentralized electricity supply schemes, the introduction of feedback between the consumer of electricity and its producer led to a rapid increase in information flows at all stages of the functioning of the electricity industry of Ukraine, starting with the production of electricity and before its consumption. This necessitates the processing, storage and transmission of large data sets. On the other hand, the time constraints imposed on information processing and decision-making efficiency, as well as the limited bandwidth of communication networks require effective optimization of information flows in terms of their compression and compact storage, transmission and recovery without loss. At the same time, the determining quantitative and qualitative information parameters are electricity consumption modes and the quality of electric energy, and the main mode parameter for solving many problems of planning, management and carrying out commercial calculations is the graphs of electric load. Based on the analysis of the functional relationships of wavelet coefficients according to the levels of wavelet decomposition, the robot presents a modified reconstruction scheme and developed a model based on which a method of local (segmental) restoration of information signals according to the levels of wavelet detail is synthesized using the example of the electric load graph. In the paper, a model of local recovery of time segments of information signals is proposed and a sequential algorithm of actions synthesized on its basis. This technique allows for effective segmentation of information signals, reduces the duration of mathematical processing, simplifies database analysis, increases the effectiveness of controlling the reliability of initial data recovery by reserving recovery paths with subsequent comparison of results.
PENYUSUNAN LAPORAN KEUANGAN ORGANISASI NIRLABA BERDASARKAN ISAK NOMOR 35 (Studi pada Masjid Nurul Iman Tabek Nagari Banja Loweh Kecamatan Bukik Barisan Kabupaten Lima Puluh Kota)
Authors: Dewi Nurkamila , Farina Desi
Published: May 2023

ABSTRAKPenelitian ini dilatarbelakangi oleh keadaan masjid Nurul Iman Tabek yang menyajikan laporan keuangan berupa kas masuk dan kas keluar secara manual. Tujuan penelitian ini ialah untuk menyusun laporan keuangan masjid Nurul Iman Tabek berdasarkan ISAK nomor 35 tentang penyajian laporan keuangan organisasi berorientasi non laba. Jenis penelitian ini merupakan kualitatif deskriptif dengan teknik pengumpulan data berupa dokumentasi dan wawancara. Teknik analisis data dalam penelitian ini melalui tahap reduksi data, penyajian data dan penarikan kesimpulan. Dalam menganalisis data, diimplementasikan siklus akuntansi yang akan menghasilkan laporan keuangan yang sesuai dengan ISAK 35 yaitu Laporan Penghasilan Komprehensif, Laporan Perubahan Aset Neto, Laporan Posisi Keuangan, Laporan Arus Kas dan Catatan Atas Laporan Keuangan.Hasil penelitian ini menunjukkan bahwa masjid Nurul Iman Tabek menyajikan laporan keuangan berupa kas masuk dan kas keluar bersifat manual berupa tulis tangan yang belum sesuai dengan penyajian yang diatur dalam ISAK nomor 35. Laporan keuangan masjid Nurul Iman Tabek yang telah disusun oleh penulis berdasarkan ISAK 35 menyajikan lima laporan keuangan yaitu Laporan Penghasilan Komprehenshif, Laporan Perubahan Aset Neto, Laporan Posisi Keuangan, Laporan Arus Kas dan Catatan Atas Laporan Keuangan.
PERHITUNGAN HARGA POKOK PRODUKSI BERDASARKAN METODE FULL COSTING ( Studi Kasus Pada Usaha Dakak-Dakak Kurnia Nagari Simabur, Kecamatan Pariangan, Kabupaten Tanah Datar)
Authors: Saleh Sri Madona , Febriani Refika , Amor Atika
Published: May 2023

Permasalahan dalam penelitian ini adalah dalam menetapkan harga pokok produksi Usaha Dakak-Dakak Kurnia belum menetapkan harga pokok produksi sesuai dengan Standar Akuntansi Keuangan. Tujuan dari penelitian ini adalah untuk mengetahui perhitungan harga pokok produksi dengan menggunakan metode full costing pada Usaha Dakak-Dakak Kurnia. Jenis peneitian yang digunakan adalah penelitian lapangan (Field Research) dengan metode penelitian deskriptif kuantitatif. Sumber data yang digunakan adalah sumber data sekunder, dan teknik pengumpulan data dilakukan dengan cara dokumentasi, dan pengumpulan data diperoleh langsung dari perusahaan. Teknik analisa yang digunakan adalah memperhitungkan harga pokok poduksi dengan menggunakan metode full costing. Hasil penelitian yang dilakuykan dapat disimpulkan bahwa perhitungan harga pokok produksi berdasarkan metode full costing lebih tinggi dari perhitungan harga pokok produksi berdasarkan metode Usaha Dakak-Dakak Kurnia. Harga pokok produksi menggunakan metode full costing sebesar Rp. 24.000, sedangkan untuk hasil perhitungan dengan menggunakan metode Usaha Dakak-Dakak Kurnia sebesar Rp. 20.500, sehingga terdapat selisih sebesar Rp. 3.500. Hal ini disebabkan Usaha Dakak-Dakak Kurnia belum memasukkan biaya overhead pabrik lainnya yang terjadi selama proses produksi dalam penentuan harga pokok produksi dakak-dakak.Kata Kunci : Harga Pokok Produksi; Full Costing;
Ogólnopolska Konferencja Naukowa „Kościół – Naród – Państwo w perspektywie 1050-letniej rocznicy Chrztu Polski. Historia i teraźniejszość” Poznań, 3-5 września 2017 roku
Authors: Rybaczek Aleksandra
Published: May 2023

W dniach 3-5 września 2017 r. odbyła się Ogólnopolska Konferencja Naukowa pt. „Kościół – Naród – Państwo w perspektywie 1050-letniej rocznicy Chrztu Polski. Historia i teraźniejszość”, zorganizowana pod patronatem Jego Ekscelencji Arcybiskupa Stanisława Gądeckiego, Metropolity Poznańskiego, Przewodniczącego Konferencji Episkopatu Polski.
Śp. Ks. Kan. Dr Kazimierz Gajda (1935-2017)
Authors: Bar Wiesław
Published: May 2023

Urodził się 24 lipca 1935 r. w Klementowicach. Po edukacji podstawowej w miejscowej szkole, w latach 1949-1953 uczył się w Liceum Ogólnokształcącym w Garbowie, gdzie zdał maturę w 1953 r. Po roku studiów na Akademii Rolniczej w Krakowie, wstąpił do Wyższego Seminarium Duchownego w Lublinie, które ukończył w 1960 r. i przyjął święcenia 18 kwietnia 1960 r. przez posługę ks. bp. Piotra Kałwy.
Dye Industries are a Threat to the Environment: An Assessment of Groundwater Characteristics
Authors: Manoharan Kalpana , Srinivasaperumal Padma , Murali Ganesh , Manjuvardhan Nara
Published: May 2023

Every day, it becomes more difficult to find water. The main factor causing water body contamination is human activity. Groundwater becomes contaminated when improperly treated waste water from industries and other sources gets mixed with it. The primary objective of this initiative is to treat water that has been contaminated by toxic substances. The study’s focus is on the process of eliminating additional compounds such as sulphate, nitrate, phenol, fluoride, mineral oil, calcium, and turbidity. The usefulness of ground water for specific uses depends on its chemistry, physical characteristics, and bacterial makeup. The groundwater’s pH, fluoride, nitrate, sulphate, turbidity, hardness, phenol, and other characteristics were all measured. The treatments took into account aeration and sedimentation. The water is then recommended as safe for household and agricultural purposes.
Treatment of Dairy Wastewater and Sludge Production Using Algae Bio Reactor
Authors: Govindaraj Venkatesan , Murugan Kuberan , Baskar Praveen , Sathaiya Jegadeesh
Published: May 2023

The primary goal of this research is to evaluate the treatment of dairy effluent from a Coimbatore industry sector utilising algae bioreactor techniques. The activated sludge process is a biological wastewater treatment process for treating industrial wastewater for reducing solid particles and simultaneously treating dairy wastewater under aerobic conditions. In this present study, an aeration tank is designed and fabricated for the treatment of wastewater and sludge production by inoculating green algae. The algae bioreactor is operated continuously for 30 days by supplying oxygen. The wastewater characteristics are tested for their concentration to find the removal efficiency of the aerobic tank. This study attempts to reduce the pollutant concentration and CO2 emission from wastewater as well as produce fertilisers from this treatment. This method of treatment is sustainable and eco-friendly.