bluuebunny/crossref_metadata_2025_split huggingface dataset:
Devising a technique and designing an apparatus for obtaining a multifunctional purpose film from intestinal raw materials
Authors: Pak Andrey , Оnishchenko Vyacheslav , Yancheva Maryna , Grynchenko Nataliya , Dromenko Olena , Pak Alina , Inzhyyants Samvel , Оnyshchenko Аrtem 
Published: July 2023

The object of research is a technique for making glued intestinal films for multifunctional purposes, which are further strengthened by a stitching apparatus using thermal coagulation.
This paper substantiates the technical and technological solutions for obtaining glued intestinal films that can be used for the manufacture of sausage casings and as a multifunctional material in the food industry.
The technique and apparatus for stitching intestinal raw materials were developed; the structural features of the apparatus and its rational operation modes were determined. The proposed technique involves stitching by thermal coagulation of intestinal films from beef belly, which belong to intestinal and sausage waste. The possibility of stitching intestinal raw materials, different in size, thickness, and species, is achieved, which allows preserving a valuable animal resource and increasing the efficiency of glued intestinal films technology.
The breaking load of the seam obtained by thermal coagulation was investigated and the rational ranges of stitching duration were determined. The breaking load of the seam was defined, which is a series of points that were subjected to thermal coagulation; its nonlinear change with a change in the distance between points was established. It was found that the values of the breaking load of the seam for the range of distance between the points that create it, from 5 to 20 mm, respectively, lie in the range from 17.5 to 15.0 N/m. This satisfies the technological requirements for the strength of the seam of glued intestinal sausage casings.
The influence of the distance between the points that create a seam between the layers of intestinal raw materials on the outflow of the liquid filling fraction for sausages from the sausage casing was established; the height of the liquid fraction, at which the outflow was considered significant, was determined
Improving the quality of object classification in images by ensemble classifiers with stacking
Authors: Galchonkov Oleg , Baranov Oleksii , Babych Mykola , Kuvaieva Varvara , Babych Yuliia 
Published: July 2023

The object of research is the process of classifying objects in images. The quality of classification refers to the ratio of correctly recognized objects to the number of images. One of the options for improving the quality of classification is to increase the depth of neural networks used. The main difficulties along the way are the difficulty of training such neural networks and a large amount of computing that makes it difficult to use them on conventional computers in real time. An alternative way to improve the quality of classification is to increase the width of the neural networks used, by constructing ensemble classifiers with staking. However, they require the use of classifiers at the first stage with different structured processing of input images, characterized by high quality classification and relatively low volume of calculations. The number of known such architectures is limited. Therefore, the problem arises of increasing the number of classifiers at the first stage of the ensemble classifier by modifying known architectures. It is proposed to use blocks of rotation of images at different angles relative to the center of the image. It is shown that as a result of structured image processing by the starting classifier, processing of rotated image leads to redistribution of errors on image set. This effect makes it possible to increase the number of classifiers in the first stage of the ensemble classifier. Numerical experiments have shown that adding two analogs of the MLP-Mixer algorithm to known configurations of ensemble classifiers reduced the error from 1 to 11 % when working with the CIFAR-10 dataset. Similarly, for CCT, the error reduction was between 2.1 and 10 %. In addition, it has been shown that increasing the MLP-Mixer configuration in width gives better results than increasing in depth. A prerequisite for the success of using the proposed approach in practice is the structured image processing by the starting classifier
Development of a new lightweight encryption algorithm
Authors: Kapalova Nursulu , Algazy Kunbolat , Haumen Armanbek 
Published: July 2023

Lightweight encryption algorithms are considered a relatively new direction in the development of private key cryptography. This need arose as a result of the emergence of a large number of devices with little computing power and memory. Therefore, it became necessary to develop algorithms that can provide a sufficient level of security, with minimal use of resources. The paper presents a new lightweight LBC encryption algorithm. LBC is a 64–bit symmetric block algorithm. It supports 80 bit secret key. The number of rounds is 20. The algorithm has a Feistel network structure. The developed lightweight algorithm has a simple implementation scheme, and the transformations used in this algorithm have good cryptographic properties. This was verified by studying the cryptographic properties of the algorithm using the "avalanche effect" and statistical tests. The avalanche property was checked for each round when each bit of the source text was changed. Based on the work carried out, it was found that the proposed encryption algorithm is effective to ensure a good avalanche effect and the binary sequence obtained after encryption is close to random. Its security against linear and differential cryptanalysis is also evaluated. The results of the research revealed good cryptographic properties of this algorithm. The algorithm will be used for devices with small hardware resources, in information and communication systems where confidential information circulates, and it is also extremely necessary to exchange information in a protected form in an operationally acceptable time
Effeciency assessment of IoT devices control with Teletraffic theory
Authors: Konyrova Madina , Kumyzbayeva Saule , Iliev Teodor , Chezhimbayeva Katipa 
Published: July 2023

In connection with the global decarbonization program until 2050, the transition to clean green energy, the growth of the Internet of Things (IoT) number, and energy distribution and control across the load are being raised. The relevance of the work is confirmed that there has been significant growth of the industrial IoT for years, significantly changing the mechanism of industrial enterprise management programs. The object of the research is the IoT device control system for efficient energy distribution using a Queuing Theory, namely the Teletraffic Theory. The novelty of the work is that the Teletraffic Theory, which deals with the mathematical modeling and analysis of traffic patterns in communication networks, can be explicitly applied to IoT device control. The authors developed a mathematical model of IoT control using the Teletraffic Theory and, based on it, created a simulation model of a network router and a transition schedule in the "GPSS World" software. The obtained results of the work were 16 states and a balance equation in which all probabilities were found. Probabilities were used to calculate nodes and network characteristics. 100,000 requests from IoT devices coming to two routers were simulated. The study results showed that the first node's load is 63.2 % with an average processing time per transaction of M=1.436 sec., and the load of the second node is 32 % with M=0.914 sec. The created network router model worked with minimal losses during transactions. Accordingly, the IoT control system developed in this study has shown its effectiveness and is applicable for practical use in controlling IoT devices in Smart Grid. It is planned to research the possibility of using Teletraffic Theory in energy distribution control systems in Smart Grids
Revealing the effect of changing the operating parameters of a double hydrostatic bearing on its characteristics
Authors: Nazin Vladimir 
Published: July 2023

The object of research is hydrostatic processes in sliding bearings with several layers of lubricant.
The task addressed was the influence of the structural and operational parameters of dual hydrostatic plain bearings on their static and dynamic characteristics. As a static characteristic, the bearing capacities of dual and conventional sleeve hydrostatic bearings were considered. When analyzing the dynamic characteristics, the amplitude-frequency characteristics were determined. They were obtained by calculation and as a result of experimental studies. When calculating the amplitude-frequency characteristics, the trajectory method was used. As external forces in the equations of motion of the rotor, hydrodynamic forces, the weight of the rotor, and its unbalance were considered.
Experimental determination of the trajectories of the rotor was carried out on a special bench.
It has been established that the bearing capacity of a double type bearing is approximately 1.75–1.85 times higher than the bearing capacity of a conventional sleeve bearing. The range of stable operation of the rotor on double-type bearings is approximately 1.4 times greater in comparison with the range of stable operation of the rotor on sleeve hydrostatic bearings. The vibration amplitudes in the resonance region for double bearings were approximately 1.5 times less than the rotor vibration amplitudes for sleeve bearings.
The results make it possible to recommend dual-type hydrostatic bearings for rotor bearings of nuclear power plants, in powerful aircraft engines with a gearbox, various types of pumps, and other power plant units. The derived theoretical dependences make it possible to carry out practical calculation of hydrostatic bearings of a double type
Design of a multilink system for calculating high-frequency processes in electric machines with mesh windings
Authors: Chumack Vadim , Kovalenko Mykhailo , Tymoshchuk Oksana , Stulishenko Andrii , Ihnatiuk Yevhen 
Published: July 2023

This study considers the design of a multi-link high-frequency circuit for calculating defective and defect-free insulation of mesh windings in order to increase the operational reliability of general-purpose electric machines.
The object of research is mesh windings of electric machines.
The problem to be solved: increasing the operational reliability of electric machines with general-purpose mesh windings by analyzing and modeling defects.
The research results make it possible to model defects for the analysis of the state of insulation of electric machines with mesh windings. Special attention in the research was paid to induction motors with a worn-out resource, in particular, 4A80A4 UZ engine. The analysis includes phase-to-body capacitance, winding inductance, eddy current impedance, and winding impedance.
Under the WN mode, a decrease in the impedance of the winding section from 3 % to the short-circuit mode was simulated; accordingly, the resonance frequencies for each case of 3 % were determined – 73990 Hz, short-circuit – 74450 Hz, as well as the corresponding input impedances 8938.7 and 8082.5. The corresponding voltage resonances and current resonances were also determined. Appropriate results were also given for the WG scheme.
The results reported here relate to the design of the scheme and the research on the defects of the mesh winding. This contributes to the analysis of the state of insulation of mesh windings. The numerical data (resonant frequencies and input impedances) allow a better understanding of the behavior of windings in different states and degrees of defects.
Given the research findings, it is possible to better identify and analyze potential defects in mesh windings, which in turn contributes to increasing the reliability of electric machines.
The results of this study could be used in the field of diagnosis, service, and maintenance of electric machines with mesh windings
Creation of a methodology for determining the moisture diffusion coefficient within vacuum drying of fruits
Authors: Shingisov Azret , Alibekov Ravshanbek , Evlash Victoriia , Yerkebayeva Saparkul , Mailybayeva Elvira , Tastemirova Ukilim 
Published: July 2023

As the drying zone deepens, outer surface layer of the product does not have time to be moistened, due to a small amount of moisture coming from the inside. It becomes dry, its temperature rises. The intensity of moisture transfer from the inner layers of the product depends on many parameters, including a moisture diffusion coefficient. The study aim is to create a methodology for determining the moisture diffusion coefficient within vacuum drying of fruits, by taking into account cracks, channels and capillaries formed in the dry layer of the product through the resistance coefficient to evaporation. The work essence consists in the determining of the moisture diffusion coefficient as a driving force, a difference between water activity and air humidity, by considering the resistance coefficient to evaporation, characterizing the effect of hydrodynamic resistance of the dried dry layer of the product. This approach was used to determine the moisture diffusion coefficient during vacuum drying of the Baiterek apple sort and the Zhazdyk pear sort of Kazakhstani selection. It was established that in the first period of drying the moisture diffusion coefficient decreases on average from 24,4∙10‒7 m2/s to 13,2∙10‒7 m2/s. The critical humidity for pear is 37.4 %, and for apple 35.1 %. As result of the formation of dry layer on the surface and subsequent layers, the moisture diffusion coefficient gradually decreases. In the second drying period, the moisture diffusion coefficient decreases from 5,42∙10-8 m2/s to 2,12∙10‒8 m2/s. The work practical significance is related with the application of the obtained results in the determination of the optimal drying regime with maximum preservation of the product original quality. The proposed methodology can be used in the practice to study the moisture diffusion coefficient within vacuum drying of fruits, by considering the product properties and the hygroscopic parameters of the drying matter
Modelling of the composition of emulsion medicines and cosmetics stabilized by a biocomplex of surfactant substances based on rhamnolipids Pseudomonas sp. PS-17
Authors: Pelekh-Bondaruk Iryna , Revyatskyy Ivan , Bilous Svitlana 
Published: July 2023

The aim. To study the biocomplex of surfactants based on rhamnolipids Pseudomonas sp. PS-17 (biocomplex PS) as an emulsifier and co-emulsifier by using the method of modelling the composition of emulsions for use in dermatology.
Materials and methods. The biocomplex PS is a biogenic surface-active complex synthesized by bacteria of the genus Pseudomonas, which is a viscous mass that includes rhamnolipids, which make up to 80 % of the biocomplex, as well as alginate and water. The methods of computer simulation of semi-automated selection of the composition of the oil phase and emulsifiers of medicinal or cosmetic emulsions developed in the MO Excel program were used. In modelling processes, the biocomplex PS was studied as an independent emulsifier in o/w type emulsions, as well as a co-emulsifier of this type of emulsions in combination with type II emulsifiers.
Results. The substantiation of the concentration of emulsifiers in the composition of emulsion medicinal and cosmetic products is mainly carried out based on experimental studies; therefore, it requires a long time and is expensive. To reduce the number of technological experiments in the development of emulsion products stabilized by a biocomplex of surfactants based on biocomplex PS, a method of computer simulation of the composition of emulsions in the MO Excel program was developed and used. A method based on the application of the hydrophilic-lipophilic balance system. Two examples of solving specific problems of choosing a complex emulsifier and the composition of the oil phase components of the emulsion product are given.
Conclusions: The use of a semi-automated modelling system provides a reasoned choice of the composition of the oil phase of the emulsion when using the PS biocomplex as an independent emulsifier or the choice of the ratio between the PS biocomplex and the type II emulsifier when using a complex emulsifier and allows rational experimental study
Authority of organs of constitutional jurisdiction on issues of international agreements: the experience of foreign states and Ukraine
Authors: Kaminska Nataliia 
Published: July 2023

In the conditions of Ukraine's implementation of the status of a candidate for EU accession, post-war reconstruction, the Constitutional Court of Ukraine, along with other authorities, is entrusted with the important mission of affirming and implementing universal human values and international standards. The purpose of the article is a comparative analysis of the powers of the organs of constitutional jurisdiction on issues of international treaties, for which the following tasks must be solved: - to find out the state of regulation of the powers of organs of constitutional jurisdiction relating to international treaties in the Constitution of Ukraine and the constitutions of foreign states; - to generalize the trends and regularities of the constitutional and legal provision of powers of these organs in this direction; - to determine prospective directions of improvement of the constitutional and legal regulation of the powers of the ССU in the conditions of European integration. The methodological toolkit of the research consists of general scientific and special legal methods (dialectical, comparative legal, logical, epistemological, axiological, formal-legal, structural-functional, hermeneutic, statistical, prognostic, etc.), systemic, pluralistic, complex approaches, appropriate methodological principles
The constitutional and legal regulation of the powers of organs of constitutional jurisdiction is carried out in the constitutions, in most states there are special laws (constitutional or organic) on the constitutional court (council, tribunal, etc.), which regulate in detail the functions, powers of these organs and their members, the order of formation, procedures of activity etc. The main powers of these organs include, inter alia, consideration of issues of compliance of laws with ratified international treaties, provisions of other acts, issued by central state organs, with the constitution, ratified international treaties and laws (prior and subsequent constitutional control). The scope of competence of the organs of constitutional jurisdiction of foreign states and their effectiveness is much greater than that of the ССU, so it is advisable to modernize it. In particular, the experience of Slovakia and Poland is worth noting, especially in view of their accession to the EU, the expansion of the competence of constitutional jurisdiction organs and certain procedures of their activities, including constitutional control over international treaties
Perancangan Video Pembelajaran Permainan Kul Kuk Sebagai Upaya Pelestarian Permainan Tradisional Bali
Authors: Widiastuti Ni Made Dian , Iriani Ni Wayan , Kusuma Putu Sandra Devindriati 
Published: July 2023

Permainan tradisional adalah permainan yang biasa dimainkan oleh anak-anak, karena dunianya adalah bermain dan penuh dengan imajinasi. Di balik gerakan, ucapan, dan alat-alat yang digunakan, tersirat makna simbolis yang bermanfaat bagi perkembangan emosi, kognitif, motorik dan sosial anak sebagai sarana belajar untuk menuju kehidupan di masa dewasanya. Dengan manfaat yang dimiliki kenyataannya tidak sejalan dengan eksistensinya saat ini di masyarakat. Pesatnya perkembangan permainan digital membuat posisi permainan tradisional semakin tergeser dan perlahan mulai ditinggalkan. Jenis permainan yang mulai tidak dikenal oleh masyarakat salah satunya adalah permainan Kul Kuk. Oleh karena itu perlu adanya pengenalan kembali kepada masyarakat terkait permainan tersebut melalui media yang lebih menarik untuk anak-anak. Video pembelajaran adalah salah satu media yang dapat digunakan untuk membantu permasalahan yang terjadi. Penulis memberikan solusi dengan mengembangkan video pembelajaran permainan Kul Kuk dengan menggunakan model pengembangan Four-D (define, design, develop,disseminate). Adapun fokus yang dibahas merujuk pada perancangan media video dengan langkah-langkah penyusunan materi, merencanakan konsep, membuat storyboard dan produksi.
Recruitment, retention, and adherence of family caregivers: Lessons from a multisite trial
Authors: Rueda Díaz Leidy Johanna , De Souza Guedes Erika , Lopes Monteiro da Cruz Diná de Almeida 
Published: July 2023

Objective. To describe the recruitment, retention of family caregivers, and adherence to a telephone based intervention evaluated in a multi-site trial and provide recommendations for the design of future studies. Methods. A descriptive study based on a secondary analysis of a multi-site clinical development in Colombia and Brazil. Recruitment was measured by the number of participants eligible and consented. Retention was assessed by the percentage of participants with outcomesdata at two follow-ups. The intervention adherence was measured by the percentage of the caregiver who received the intervention.
Results. Of the family caregivers assessed, 63% were eligible, and 32.9% declined to be in the study for time restriction or no interest. In Colombia, the total retention rate of caregivers was 63.4% at the first follow-up and 48% at the second follow-up, while in Brazil was de 52.8% and 46.2%, respectively. At the end of the study, the sample comprised 28 and 70 caregivers in the intervention and control groups, respectively, for a retention rate of 47%. Of 104 family caregivers allocated to the intervention group, 42 (40.3%) received five sessions. Most reported not completing the Caregiver´s ActivityDiary.
Conclusion. The recruitment of family caregivers, participant retention, and adherence to the telephone intervention was unsuccessful. Future studies should apply an assessment tool during the recruitment of family caregivers and replace the term "caregiver" with "care provider"; in the material involved in the research; define a retention protocol before starting the study and involve family caregivers in the design of the interventions.