National University Zaporizhzhia Polytechnic

The study addresses changing conditions for Ukrainian enterprises, where wartime instability and declining demand weaken classical marketing approaches. It identifies effective marketing strategies through analysis of marketing evolution and its reinterpretation under military and economic instability. Methods include systemic and comparative analysis, SWOT assessment, and scenario modelling. The paper outlines the shift to service-oriented logic, highlights limits of certain crisis concepts, and proposes a KPI-based strategic matrix. Marketing strategies are framed as an anti-crisis value system strengthening business resilience. The study provides tools to align strategy with financial results, improve revenue predictability, streamline management cycles, and support long-term viability.

Одной из приоритетных задач Комплексной программы инновационного развития холдинга «РЖД» является цифровизация и автоматизация технологических процессов. Реализуемый в компании проект «Цифровая железнодорожная станция» [1–3] (ЦЖС) входит в состав комплексного научно-технического проекта «Цифровая железная дорога», внедряемого в рамках мероприятий по реализации программы «Цифровая экономика Российской Федерации». В ходе реализации проекта ЦЖС разработаны программно-аппаратные комплексы для автоматизации действий дежурного по станции в процессе приготовления маршрутов и контроля ситуации при поездных и маневровых передвижениях. В статье рассказано об Автоматическом комплексе информирования машиниста с интеллектуальным распознаванием речи АКИМ, который предназначен для автоматической передачи информации о приготовленном маршруте машинистам поездных локомотивов. АКИМ планируется применять в составе Цифровой железнодорожной станции для обеспечения выполнения регламента переговоров. One of the priority tasks of the Comprehensive Program innovative development of the holding “Russian Railways” is the digitalization and automation of technological processes. Implemented in the company the project “Digital railway station” (DJS), is part of the complex scientific and technical project “Digital railway”, implemented as part of the implementation of the measures for the implementation of the program “Digital economy of the Russian Federation”. During the implementation of the CJC project, software and hardware complexes were developed to automate the actions of the station attendant in the process of preparing routes and monitoring the situation during train shunting movements. The article describes an Automatic driver information System with intelligent speech recognition AKIM, which is designed to automatically transmit information about the prepared route to train locomotive drivers. AKIM is planned to be used as part of a Digital Railway Station to ensure compliance with the negotiation rules.

A hybrid theoretical approach is proposed to estimate the maximum charge that a metal nanoparticle can acquire due to tunneling contact with a conducting semiconductor substrate. The method combines analytical relations and self-consistent Kohn–Sham calculations of the electron work function, ionization potential, and critical charge of an isolated particle embedded in a dielectric medium. These quantities were obtained within the framework of density functional theory (DFT) using the free electron model and subsequently adapted for noble metals. The particle capacitance is estimated using the Johnson–Kendall–Roberts contact mechanics model for both rigid and compliant dielectric spacers. It is shown that the dielectric contact region can significantly modify the ionization potential, especially for soft spacer layers. An analytical expression is derived for the maximum number of electrons that can be transferred to the particle, defining the range of attainable excess charges as a function of the spacer elastic properties. The theoretical predictions are compared with experimental data obtained from Kelvin probe force microscopy measurements of charged nanoparticles. The physical origin of the contact potential difference in Kelvin probe experiments is also discussed.

The object of research is the processes of electromagnetic transformation in powerful asynchronous electric drives during controlled start-up and their impact on the quality of electricity in the power supply network. Distribution networks of industrial enterprises are considered, which have significant dynamic loads during the start-up of powerful machines. The problem to which the research is aimed is to ensure proper quality of electricity in distribution networks of industrial enterprises when performing controlled start-up of powerful asynchronous electric drives from soft starters based on a thyristor voltage regulator. Quantitative indicators of the influence of starting devices on the parameters of electricity quality were calculated using computer modeling in the MATLAB/Simulink environment. Soft start using a thyristor regulator, although it limits the starting current, has a negative impact on the quality of electricity in the distribution network. Reactive power consumption increases, which causes a voltage drop. For the case of starting an asynchronous motor with a capacity of 3500 kW in the network of a sintering factory, it was found that direct start causes a voltage drop of about 350 V. Harmonic voltage distortions with a distortion factor of up to 6% also appear. Power active filters allow to improve the quality of electricity by introducing antiphase currents, which is proven by the application of theoretical methods of electrical engineering. The results obtained are applicable in the design of electric drive systems of powerful mechanisms during the modernization of the power supply of industrial enterprises, in the calculation of reactive power compensation means and in the development of energy quality standards. This will significantly contribute to increasing the reliability of technological equipment, reducing energy losses, and increasing the service life of electrical equipment at the enterprise.

The article examines judicial protection in disputes regarding public procurement as a tool for ensuring the economic security of the state. It is substantiated that public procurement, being one of the largest channels for distributing budget funds, belongs to the areas of increased corruption risks, and therefore requires effective control and appeal mechanisms. It is shown that the national model of protecting the rights of procurement participants combines extrajudicial (administrative) appeal in the Antimonopoly Committee of Ukraine and judicial control as the final guarantee of legality. The quasi-judicial nature of the procedures for considering complaints by the appeal body and their practical effectiveness due to integration with the electronic system "Prozorro" are highlighted, in particular through the automatic suspension of procurement actions during the consideration of the complaint. At the same time, the emphasis is placed on the limited integration of judicial control with the electronic procurement infrastructure, which complicates the execution of decisions to secure the claim and sometimes leads to the formal nature of judicial protection. A comparative analysis of appeal mechanisms in Ukraine and EU countries (in particular, on the example of Poland) was conducted, which confirmed the compliance of the Ukrainian model with European approaches according to the general architecture of “quasi-judicial body – court”, but at the same time revealed a significantly higher intensity of appeals to the appeal body in Ukraine and differences in the rates of satisfaction of complaints. It was concluded that judicial protection in the field of public procurement performs a preventive and restorative function: it deters abuse, creates legal certainty, supports competition and business confidence, and also promotes the rational use of public finances. It is proposed to direct further improvement of the system to increasing the efficiency of the execution of court decisions and strengthening the procedural and technical interaction of courts with the electronic procurement system.

The relevance of this article lies in the fact that the implementation of the philosophy and methodology of marketing in the development of tourism in de-occupied territories can ensure their effective functioning under conditions of intense competition and the adverse consequences of war. The purpose of the article is to systematize and substantiate the scientific and methodological foundations and principles for developing an integrated post-war marketing strategy for tourism development in the de-occupied territories of Ukraine, based on the creation and promotion of a territorial tourism brand. The subject of the study is the paradigm of sustainable development of the tourism system, understood as a dynamic process of successive positive post-war transformations. The proposed marketing mechanisms for post-war tourism development in de-occupied regional territories are based on a synthesis of best tourism practices, are comprehensive in nature, and cover all elements of the tourism marketing mix, partnership marketing, and place branding. The integrated approach focuses on both internal and external target audiences and offers a set of specific characteristics and instruments. The measures developed within this framework are aimed at increasing the tourist attractiveness of de-occupied territories, creating conditions for entrepreneurial activity, improving population welfare, restoring tourism infrastructure and resources, and strengthening the competitive position of regions in the interregional division of labor in the tourism sector. The results are recommended for use by central and local authorities of Ukraine, tourism development agencies, stakeholders, and other interested parties in designing and implementing strategies for tourism and regional development in de-occupied territories. JEL Classification: L83, M31, R11, O18, O19

This research analyzes the transformation of management systems within large-scale Ukrainian businesses facing extreme environmental instability due to military aggression. It focuses on the critical need for adaptive strategies for industrial giants dealing with physical asset destruction and the total blockade of traditional export routes. The main objective is to evaluate destructive factors and provide methodological recommendations for anti-crisis strategies that ensure resilience and modernization in the metallurgical sector during the war and post-war periods.

We present the theory of motion in the gravitational field of an attracting object, considering its equatorial bulge. There is a secular precession of the orbit that occurs in the direction opposite to the orbital revolution. The precession rate increases as the gravitating body’s flattening increases and the orbit’s characteristic size decreases. Using the perturbation approach, we derive the equations for finding the precession period and the apocentric distance. We also construct the generalized version of the Laplace-Runge-Lenz vector for this type of motion.