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Structural and Functional MaterialsStructure and physical properties of the rapidly cooled amorphous alloy FeCo0,854Nb0,146NiB0,7Si0,3

Structure and physical properties of the rapidly cooled amorphous alloy FeCo0,854Nb0,146NiB0,7Si0,3

Structure and physical properties of the rapidly cooled amorphous alloy FeCo0,854Nb0,146NiB0,7Si0,3 Oleksandr Kushnerov ORCID: https://orcid.org/0000-0002-9683-2041 Oles Honchar Dnipro National University Valerii Bashev ORCID: https://orcid.org/0000-0002-3177-0935 Dniprovsk State Technical University Serhii Ryabtsev ORCID: https://orcid.org/0000-0002-2889-5278 Oles Honchar Dnipro National University Purpose. The study aims to develop and characterize a new nanostructured FeCo0,854Nb0,146NiB0,7Si0,3 high-entropy metallic glass with enhanced soft magnetic and mechanical properties. The research seeks to explore the interplay between the alloy’s amorphous structure and its functional properties to advance the understanding of high-entropy …

Structural and Functional MaterialsAustenite Stability and Wear Resistance of High-Manganese Steels

Austenite Stability and Wear Resistance of High-Manganese Steels

Austenite Stability and Wear Resistance of High-Manganese Steels Hennadii Snizhnoi ORCID: https://orcid.org/0000-0003-1452-0544 National University Zaporizhzhia Polytechnic Volodymyr Sazhnev ORCID: https://orcid.org/0000-0002-2095-4958 National University Zaporizhzhia Polytechnic Serhii Sheyko ORCID: https://orcid.org/0000-0001-5761-4263 Zaporizhzhya National University Olexandr Shapurov ORCID: https://orcid.org/0000-0002-4381-4886 Zaporizhzhya National University Anastasiia Hrechana ORCID: https://orcid.org/0000-0002-9650-3475 Zaporizhzhya National University Purpose. Classification of wear-resistant components used in metallurgical equipment by category and optimization of high-manganese steel selection. Design / Method / Approach. The study was conducted on steels produced in induction furnaces with water quenching at …

Aerospace vehiclesOpen-source analysis of the potential configuration and kinetic performance of the Oreshnik ballistic missile

Open-source analysis of the potential configuration and kinetic performance of the Oreshnik ballistic missile

Open-source analysis of the potential configuration and kinetic performance of the Oreshnik ballistic missile Mykola Bondarenko ORCID https://orcid.org/0009-0008-8421-8408 Oles Honchar Dnipro National University Volodymyr Habrinets ORCID: https://orcid.org/0000-0002-6115-7162 Oles Honchar Dnipro National University Mykhailo Vorobei ORCID: https://orcid.org/0009-0009-9173-8564 Oles Honchar Dnipro National University Purpose. This article presents an analysis of the tactical and technical characteristics of the Oreshnik medium-range ballistic missile, which, according to open-source data, was employed in a precision strike against an infrastructure facility in Dnipro in November 2024. The study …

Aerospace vehiclesMulti-criteria optimization of composite panels with rib reinforcement under combined loading

Multi-criteria optimization of composite panels with rib reinforcement under combined loading

Multi-criteria optimization of composite panels with rib reinforcement under combined loading Mykola Mormul ORCID: https://orcid.org/0000-0002-8036-3236 University of Customs and Finance Oleksandr Shchytov ORCID: https://orcid.org/0000-0002-1435-2918 TEC-Lyceum No. 100: Dnipro, UA Dmytro Shchytov ORCID: https://orcid.org/0000-0003-4306-8016 University of Customs and Finance Purpose. The study is aimed at finding a constructive balance between the mass and cost of composite panels with stiffeners that are subjected to combined loading. The optimization was carried out taking into account real operation conditions, when a slight improvement in …

Project Management and LeadershipThe Impact of Emotionally Driven Service on Customer Loyalty in the Beauty Services Sector

The Impact of Emotionally Driven Service on Customer Loyalty in the Beauty Services Sector

The Impact of Emotionally Driven Service on Customer Loyalty in the Beauty Services Sector Yelyzaveta Kravchuk ORCID: https://orcid.org/0009-0000-7947-9576 Oles Honchar Dnipro National University Oleksandr Krupskyi ORCID: https://orcid.org/0000-0002-1086-9274 Oles Honchar Dnipro National University Purpose. This article aims to theoretically substantiate and empirically investigate the impact of emotional service on customer loyalty in the beauty industry. It identifies key emotional interaction factors that enhance customer satisfaction and the competitive advantage of beauty service providers. Design / Method / Approach. The study employs an …

Control Systems, Telecommunications and NavigationEvaluation of dynamic characteristics of a linear time-varying system

Evaluation of dynamic characteristics of a linear time-varying system

Evaluation of dynamic characteristics of a linear time-varying system Volt Avdieiev ORCID: https://orcid.org/0000-0002-9986-7637 Oles Honchar Dnipro National University Purpose. The development of methodological support for the construction of an algorithm for calculating the coefficients of the transfer function of the second order link, which is equivalent to a time-varying system in the selected time interval from the point of view of the smallest average value of the modulus of the difference of dimensionless state vectors. Design / Method / Approach. Mathematical …