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Innovative Technologies in Mechanical EngineeringModern air defense methods and countermeasures for use in operational-tactical missiles

Modern air defense methods and countermeasures for use in operational-tactical missiles

Modern air defense methods and countermeasures for use in operational-tactical missiles Mykola Bondarenko ORCID: https://orcid.org/0009-0008-8421-8408 Oles Honchar Dnipro National University Mykhailo Vorobei ORCID: https://orcid.org/0009-0009-9173-8564 Oles Honchar Dnipro National University In contemporary military contexts, operational-tactical missile systems constitute pivotal arsenals in modern warfare scenarios. To safeguard against the evolving threats posed by these systems, a continuous evolution of defensive strategies and technologies is imperative. This article delves into the multifaceted realm of missile defense, scrutinizing a spectrum of methodologies from conventional …

Control Systems, Telecommunications and NavigationTransfer functions of a time-varying control system

Transfer functions of a time-varying control system

Transfer functions of a time-varying control system Volt Avdieiev ORCID: https://orcid.org/0000-0002-9986-7637 Oles Honchar Dnipro National University The mathematical model of linear time-varying systems (LTV) is the differential equations with coefficients that change over time. The question of their analysis and synthesis is an integral part of the control theory, the development of which is caused by the need to solve a number of technical problems, in particular, the design of aircraft motion control systems. For the study of LTV, in …

Innovative Technologies in Mechanical EngineeringStatus and engineering trends of machine-building industry of Ukraine during the war (2014 – 2023)

Status and engineering trends of machine-building industry of Ukraine during the war (2014 – 2023)

Status and engineering trends of machine-building industry of Ukraine during the war (2014 – 2023) Yehor Lukianenko ORCID: https://orcid.org/0009-0002-3326-7767 Oles Honchar Dnipro National University The article investigates the current state and tendencies of development of the machinebuilding industry of Ukraine in the conditions of unbalanced, raw material-oriented economy. Its leading role in shaping the production potential of other sectors of the economy and ensuring the scientific and technological progress of the country has been established. The sectoral structure of the …

Structural and Functional MaterialsObtaining multi-component chrome plated coatings for press tooling equipment

Obtaining multi-component chrome plated coatings for press tooling equipment

Obtaining multi-component chrome plated coatings for press tooling equipment Borys Sereda ORCID: https://orcid.org/0000-0002-9518-381X Dniprovsk State Technical University Andrii Udod ORCID: https://orcid.org/0000-0001-8029-4878 Dniprovsk State Technical University The purpose of our study is to obtain multicomponent chrome coatings alloyed with titanium and aluminum to strengthen the working surfaces of parts operated under aggressive conditions on equipment for vulcanizing products from new elastomeric materials using modern methods of surface hardening of materials, including the SHS technology, with the main goal of developing new …

Ecology, industrial and environmental safetyStatistical assessment of the volume of accumulated waste

Statistical assessment of the volume of accumulated waste

Statistical assessment of the volume of accumulated waste Tetiana Rusakova ORCID: https://orcid.org/0000-0001-5526-3578 Oles Honchar Dnipro National University Problem statement. The task of assessing the volume of accumulated waste in the territory of the Dnipropetrovsk region, which is constantly increasing, occupying a larger area and causing damage to the environment, is under consideration. To solve this predictive problem, it is necessary to create a regression mathematical model for statistical evaluation and analysis of the influence of factor variables on the total …

Information Technology and CybersecurityHuman age estimation from a photo using neural networks

Human age estimation from a photo using neural networks

Human age estimation from a photo using neural networks Yevhenii Verbenko ORCID: https://orcid.org/0009-0001-8438-4990 Oles Honchar Dnipro National University Olga Matsuga ORCID: https://orcid.org/0000-0001-6444-8566 Oles Honchar Dnipro National University The aim of this work was to compare different neural network architectures for the task of age estimation from face images. Since age is a continuous variable, the task of determining a human age from images of their face is treated as a regression problem. The UTKFaces dataset was used in this work. …