Факультет електроніки та інформаційних технологій (ЕлІТ)
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Item Infoware and software of virtual simulator basic training algorithm of the information-extreme intelligent technology(Sumy State University, 2025) Edimaobong, М.The development of the Virtual Simulator "Basic Training Algorithm of the Information-Extreme Intelligent Technology" for the Moodle environment successfully integrated interactive learning tools directly into the popular e-learning platform. The simulator provides a user-friendly interface that enables learners to engage with core algorithms of Information-Extreme Intelligent Technology through step-by-step visualization and real-time feedback. The implemented infoware and software modules facilitate adaptive training scenarios, enhancing students’ comprehension and practical skills in intelligent system design. Testing within Moodle demonstrated improved learner engagement and knowledge retention compared to traditional methods. This integration proves the effectiveness of combining advanced intelligent technology training with modern digital educational environments.Item Іnformation system for visualizing the operation of an artificial neural network(Sumy State University, 2025) Philippa, A.Е.A visual representation of forward-feeding connections between neurons in an artificial neural network, which fire outputs based on a threshold value. The activation function used is Sigmoid. The programming language of choice is primarily TypeScript.Item Diffusion Processes in High-Entropy Thin Film Alloys(Sumy State University, 2025) Шумакова, Наталія Іванівна; Shumakova, Nataliia Ivanivna; Shevchenko, V.I.A key premise in this case is the thesis that the kinetic process in 5-6 component HEAs can be considered as the self-diffusion of individual atoms with a diffusion coefficient D close to the corresponding value in single-component metals. This approach is justified by the fact that in HEAs, the atomic sizes of the individual components are very similar (deviations rᵢ from the average atomic radius r̅ do not exceed 5%). It should be noted that, at first glance, this deviation appears small, but it is precisely what enables the formation of the HEA state and the development of high macrostress valuesItem Analysis of Geometric parameters and External Load on the Friction Coefficient in Adhesive Contacts(Sumy State University, 2025) Bekmamatova, G.The friction coefficient in adhesion contacts depends on multiple factors, including material properties, external load and contact geometry. Understanding the role of these parameters is essential for optimizing tribological performance in various applications, including elastomeric seals, biomedical devices, and soft robotic interfaces. This study investigates the effect of the geometrical contact profile f(r) = 𝑐𝑛rn in combination with the external load 𝐹𝑁 and material parameters on the friction coefficient 𝜇. Theoretical analysis is performed using adhesion contact mechanics and numerical simulations are conducted in MATLAB to visualize the influence of these quantities.Item Effect of heat treatment on the surface morphology of a CoFeBMoGeMn multicomponent thin-film alloy(Sumy State University, 2025) Hunbin, О.І.; Pylypeko, O.V.; Troian, R.О.; Пазуха, Ірина Михайлівна; Pazukha, Iryna MykhailivnaThe atomic force microscopy (Bruker, Dimension Icon AFM) examined the surface morphology and roughness. The values of root-mean-squared (Rq) and arithmetical mean deviation of the assessed profile (Ra) that characterize the surface-profile roughness of investigated samples were calculated.Item Investigation of the Effect of 3D Structure Geometry of WE43 on Corrosion Activity in PBS(Sumy State University, 2025) Nazarenko, D.; Однодворець, Лариса Валентинівна; Odnodvorets, Larysa Valentynivna; Drozdenko, D.; Dobroň, P.; Minárik, P.; Alomar, Z.; D'Elia, F.; Kytýř, D.; Koudelka, P.Magnesium alloy WE43 is considered one of the most promising materials for biomedical implants due to its rare combination of low density, biocompatibility, favorable mechanical properties, and biodegradability [1]. However, its practical application remains limited by high corrosion rates in physiological environments. Therefore, the investigation of its corrosion resistance, especially in the context of modern manufacturing technologies, is of high relevance [2].Item Control of Structural and Magnetic Properties of Polycrystalline Co2FeGe Films via Deposition and Annealing Temperatures(MDPI, 2021) Vovk, A.; Bunyaev, S.A.; Štrichovanec, P.; Vovk, N.R.; Постольний, Богдан Олександрович; Postolnyi, Bohdan Oleksandrovych; Apolinario, A.; Pardo, J.Á.; Algarabel, P. A.; Kakazei, G.N.; Araujo, J.P.Thin polycrystalline Co2FeGe films with composition close to stoichiometry have been fabricated using magnetron co-sputtering technique. Effects of substrate temperature (TS) and postdeposition annealing (Ta) on structure, static and dynamic magnetic properties were systematically studied. It is shown that elevated TS (Ta) promote formation of ordered L21 crystal structure. Variation of TS (Ta) allow modification of magnetic properties in a broad range. Saturation magnetization ~920 emu/cm3 and low magnetization damping parameter ~ 0.004 were achieved for TS = 573 K. This in combination with soft ferromagnetic properties (coercivity below 6 Oe) makes the films attractive candidates for spin-transfer torque and magnonic devices.Item Building of a digital model of aluminum electrolysis modes(Journal of Physics: Conference Series, 2021) Vereschagina, E.A.; Zolkin, A.L.; Лавров, Євгеній Анатолійович; Lavrov, Yevhenii Anatoliiovych; Fakhertdinova, D.I.; Dragulenko, V.V.The article discusses the issues of constructing a digital model of aluminum electrolysis modes. This model allows to achieve the specified criteria of the production process on the basis of scientific processing of historical data accumulated during the industrial production of aluminum at factories using a mathematical apparatus as well as to obtain recommendations on the values of control parameters. The study is aimed at achieving the business goals of the company's management in particular on increasing of the profits by improving the quality and quantity of products with reduced production costs.Item Analysis of information security issues in corporate computer networks(IOP Conference Series: Materials Science and Engineering, 2021) Лавров, Євгеній Анатолійович; Lavrov, Yevhenii Anatoliiovych; Zolkin, A.L.; Aygumov, T.G.; Chistyakov, M.S.; Akhmetov, I.V.This article discusses the main problems associated with information security in corporate networks and ensuring the reliable operation of information systems and the services they provide. Information security is understood as the security of information resources and information systems, as well as the supporting infrastructure from accidental or deliberate influences of a natural or artificial nature, fraught with harm to the owners or users of information resources. Currently, there are major changes in information security issues. They relate to the methods of work of attackers, the conditions of crimes commited in the computer sphere, as well as the consequences of illegal activities.Item Adhesion and friction in hard and soft contacts: theory and experiment(Tsinghua University Press, 2021) Popov, V.L.; Li, Q.; Ляшенко, Яків Олександрович; Liashenko, Yakiv Oleksandrovych; Pohrt, R.This paper is devoted to an analytical, numerical, and experimental analysis of adhesive contacts subjected to tangential motion. In particular, it addresses the phenomenon of instable, jerky movement of the boundary of the adhesive contact zone and its dependence on the surface roughness. We argue that the "adhesion instabilities" with instable movements of the contact boundary cause energy dissipation similarly to the elastic instabilities mechanism. This leads to different effective works of adhesion when the contact area expands and contracts. This effect is interpreted in terms of “friction” to the movement of the contact boundary. We consider two main contributions to friction: (a) boundary line contribution and (b) area contribution. In normal and rolling contacts, the only contribution is due to the boundary friction, while in sliding both contributions may be present. The boundary contribution prevails in very small, smooth, and hard contacts (as e.g., diamond-like-carbon (DLC) coatings), while the area contribution is prevailing in large soft contacts. Simulations suggest that the friction due to adhesion instabilities is governed by "Johnson parameter". Experiments suggest that for soft bodies like rubber, the stresses in the contact area can be characterized by a constant critical value. Experiments were carried out using a setup allowing for observing the contact area with a camera placed under a soft transparent rubber layer. Soft contacts show a great variety of instabilities when sliding with low velocity – depending on the indentation depth and the shape of the contacting bodies. These instabilities can be classified as "microscopic" caused by the roughness or chemical inhomogeneity of the surfaces and "macroscopic" which appear also in smooth contacts. The latter may be related to interface waves which are observed in large contacts or at small indentation depths. Numerical simulations were performed using the Boundary Element Method (BEM).