Перегляд за Автор "Serhiienko, Olena"
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Документ Analysis Dynamics of the Market Development of Funds for Investment: on the Example of Major ETF(2023) Serhiienko, Olena; Bril, Mykhailo; Lyashenko, VyacheslavThe sustainable functioning and development of both the economy as whole and individual business entities requires constant investment. Such an investment is possible both with the help of bank lending and on the basis of investment. Each of the approaches has its own advantages and disadvantages. In this paper, we consider investment. Investing comes in various types and forms. One of the types of investment is raising the necessary funds through investment funds. For these purposes, stock market instruments are used. We are considering an ETF fund. We examine the dynamics of the fund's main ETF instruments. For this analysis, we use descriptive statistics and wavelet analysis tools. The paper presents many graphs and charts that allow you to understand the course of the study and evaluate the results.Документ Analysis of the dynamics of Europe stock markets development(Fintechalliance LLC, 2023) Serhiienko, Olena; Bril, Mykhailo; Baranova, Valeria; Tatar, Maryna; Bilotserkivskyi, OleksandrThe article proposes a complex of economic and mathematical models of assessment, analysis, and forecasting of the world stock indices development state for effective management of investment flows. The modern concept and strategy of European countries’ stock market development were considered, and the existing methods of diagnosing the stock market development level were analyzed. ARIMA models were built and spectral analysis of the main world indices was carried out. The possible trends in the stock indices development for the future period were analyzed using predictive models. It makes it possible to determine directions for improving the stock market efficiency and investment strategies in modern conditions.The proposed set of models for evaluation, analysis, and forecasting of the world stock indices state can be used to test various trading strategies and to test various hypotheses in relation to the entire stock portfolio of a particular company or to one stock index. The results of the research can be used in the development of theoretical provisions and methodological tools for evaluating the global stock market effectiveness in modern conditions and development trends in local markets.Документ Application of Cost-Effective Acoustic Intelligence to Protect Critical Facilities from Drone Attacks(Institute of Electrical and Electronics Engineers, 2022) Pohasii, Serhii; Baranova, Valeria; Bilotserkivskyi, Oleksandr; Haponenko, Olha; Serhiienko, Olena; Vorobiov, BohdanUnauthorized use of unmanned aerial vehicles (UA Vs) for surveillance of important objects, carrying out terrorist attacks and sabotage, throwing prohibited objects (weapons, drugs) has updated the search for cost-effective and technically feasible solutions to counter UA Vs. An analysis of materials on this topic showed that the effectiveness of defeating all types of UA Vs by existing means of air defense and electronic warfare is quite high. However, the problem of countering small UA Vs, based on the experience of the war in Ukraine, is not resolved. The purpose of the article is to analyze the UA V, as an object of detection and countermeasures, using acoustic means of airspace control with minimal economic costs. The article presents the results of the analysis of the UAVas an object of detection and the issuance of target designations by means of acoustic observation.Документ Assessing the Economic and Technical Effectiveness of Intercepting UAVs Using Alternative Methods(2023) Pohasii, Serhii; Mashchenko, Maryna; Serhiienko, Olena; Klimenko, Olena; Andriushchenko, Tetiana; Milevska, TetianaThe study explores the various methods and technologies employed in intercepting unmanned aerial vehicles (UAVs). It highlights the use of UAV interceptors, specifically those utilizing the kamikaze scenario, which have demonstrated effectiveness in conflicts such as the war in Ukraine. The research investigates the technical and economic aspects of combating UAVs, particularly reconnaissance and kamikaze UAVs equipped with various types of ammunition. Cost analysis and technical characteristics of commonly used kamikaze UAVs are examined. This study provides valuable insights into the challenges and potential solutions in countering UAV threats.Документ Assessment of volatility and the level of hedging effectiveness on oil markets(Wydawnictwo Wyższej Szkoły Technicznej w Katowicach, Poland, 2023) Haponenko, Olha; Mashchenko, Maryna; Serhiienko, OlenaДокумент Comparative Analysis of the Dynamics of Futures for the Dow Jones, S&P 500 and Nasdaq(2023) Serhiienko, Olena; Novikova, Tetyana; Lyashenko, VyacheslavThe stock market plays an important role in the functioning of individual business entities and the development of the financial market as a whole. To understand such dynamics, an important aspect is to study quotes for futures, indices and stocks. Based on this, the paper examines various aspects of conducting a comparative analysis of data on futures for the Dow Jones, S&P 500 and Nasdaq indices. We consider simple aspects of statistical analysis, as well as the mutual dynamics of such indicators. For these purposes, the methodology for estimating wavelet coherence is used. The paper presents graphical estimates of such characteristics. This helps to understand the results obtained.Документ Dynamics of Changes in Commodity Indices for Commodities: Wheat, Corn, Soybeans, Sugar, Cocoa(2022) Lyashenko, Vyacheslav; Serhiienko, Olena; Bilotserkivskyi, OleksandrCommodity indices determine the weighted price of various groups of goods. At the same time, the dynamics of such indices reflects the dynamics of prices for the corresponding goods. In turn, commodity indices are interconnected with the dynamics of indices, both the securities market and the general world market. An analysis of this relationship helps to understand the dynamics of the functioning and development of individual market segments, the economy as a whole, and various business entities. An important aspect of this analysis is the assessment of relationships, primarily between groups of goods that are placed on the commodity market. Based on this, the paper considers the main aspects of the analysis of the dynamics of commodity indices, presents graphs of commodity indices for individual groups of goods, and considers the main statistical characteristics of such data. To assess the mutual analysis of the dynamics of changes in commodity indices, the wavelet coherence methodology was used. This methodology makes it possible to evaluate the mutual dynamics of commodity indices over different time horizons. We can better understand the dynamics of the relevant relationship, which is important for making investment decisions. Such assessments are also important for making decisions about interaction in different segments of the world market or the stock market. Some results of assessments of such a methodology are presented. The paper presents a lot of factual material, which helps to understand the logic of the study.Документ Electrodeposition of brass from polyligand electrolyte based on pyrophosphate(Фізико-механічний інститут ім. Г. В. Карпенко, 2019) Serhiienko, Olena; Artemenko, Valentina; Rutkovska, Katerina; Maizelis, AntoninaThe purpose of the research is to determine the conditions for brass electrodeposition from a polyligand electrolyte containing pyrophosphate and citrate metal complexes. Methods of cyclic voltammetry and galvanostatic deposition were used. It is determined the region of current densities, in which the current efficiency is the highest, the deposit is more uniform in the thickness, and alloy composition is practically unchanged.Документ Modelling technologies in the study of taxpayer behaviour to develop effective tax strategies(Wydawnictwo Wyższej Szkoły Technicznej w Katowicach, Poland, 2023) Serhiienko, Olena; Sosnov, Ihor; Samus, PavloДокумент New Data from Wavelet Analysis on the Dynamics of Changes in the International Currency Market(2022) Lyashenko, Vyacheslav; Serhiienko, Olena; Bilotserkivskyi, OleksandrThe foreign exchange market is one of the important segments of the financial market. Such attention to the foreign exchange market is due to the fact that it provides stable economic and organizational relationships in the implementation of transactions for the purchase or sale of foreign currency. This, in turn, has a significant impact on the development of international economic relations. Thus, the analysis of the foreign exchange market plays an important role in the evaluation of various economic processes. To analyze the situation in the foreign exchange market, it is necessary to have primary data. As a source of primary data for the foreign exchange market are empirical data on the dynamics of the exchange rate. At the same time, it is necessary to know the dynamics of the exchange rate from the point of view of different countries. This increases the reliability of the results that can be obtained from the corresponding analysis. We can also evaluate the mutual influence on the dynamics of exchange rates from the point of view of individual countries. For such an analysis, we use the ideology of wavelets. This ideology allows the analysis of data presented as a time series. Among the methods of wavelet ideology, we consider wavelet coherence. This approach allows us to evaluate the mutual dynamics of exchange rates for different countries. The paper presents the results for real data. The paper presents many graphs and diagrams that allow you to better understand the progress of our study, interpret the results.Документ Problem-Oriented Model in Technical Specialized Applications of Transport Systems Management(2022) Sosnov, Ihor; Serhiienko, Olena; Shapran, Yevhen; Bilotserkivskyi, Oleksandr; Ippolitova, InnaДокумент Strategizing directions of financial aspect development in the corporate security system of an industrial enterprise(TOV "Fintehalyans", 2023) Serhiienko, Olena; Volosnikova, Natalia; Yehorova, Yulia; Makarchuk, Kateryna; Sokolova, NataliaThe article develops and substantiates the concept of the financial strategy of the corporate insurance system. The scheme of formation of the financial strategy of corporate security at an enterprise is analyzed. It is proven that an important criterion for ensuring the effectiveness of the financial strategy of an enterprise corporate security system is to detail and specify its functions, which are divided into two components: the processes of formation and use of enterprise financial resources. It is emphasized that in order to implement an effective strategy for achieving competitive advantages, it is necessary to ensure the appropriate level of management system development which is capable of ensuring the integration of functional areas of its activity. The achievement of interaction and coherence of implemented measures in each of the areas of an enterprise activity should be coordinated according to the general strategy. It has been confirmed that the economic effect plays an important role in the economic development of the corporate security system. In addition, the requirement of consistency of material, financial, information and other types of resource flows of integrated logistics processes at enterprises is particularly relevant. We made the conclusion that one of the tasks of the corporate security system in terms of financial resource provision management is tracking the intensity and targeting of resource provision flows, forecasting costs and benefits when achieving mutual goals of both the corporate security system and local elements of corporate security.Документ Strategizing directions of financial aspect development in the corporate security system of an industrial enterprise(Fintechalliance LLC, 2023) Serhiienko, Olena; Volosnikova, Natalia; Yehorova, Yulia; Makarchuk, Kateryna; Sokolova, NataliaThe article develops and substantiates the concept of the financial strategy of the corporate insurance system. The scheme of formation of the financial strategy of corporate security at an enterprise is analyzed. It is proven that an important criterion for ensuring the effectiveness of the financial strategy of an enterprise corporate security system is to detail and specify its functions, which are divided into two components: the processes of formation and use of enterprise financial resources. It is emphasized that in order to implement an effective strategy for achieving competitive advantages, it is necessary to ensure the appropriate level of management system development which is capable of ensuring the integration of functional areas of its activity. The achievement of interaction and coherence of implemented measures in each of the areas of an enterprise activity should be coordinated according to the general strategy. It has been confirmed that the economic effect plays an important role in the economic development of the corporate security system. In addition, the requirement of consistency of material, financial, information and other types of resource flows of integrated logistics processes at enterprises is particularly relevant. We made the conclusion that one of the tasks of the corporate security system in terms of financial resource provision management is tracking the intensity and targeting of resource provision flows, forecasting costs and benefits when achieving mutual goals of both the corporate security system and local elements of corporate security.Документ UAVs Intercepting Possibility Substantiation: Economic and Technical Aspects(2022) Pohasii, Serhii; Korolov, Roman; Vorobiov, Bohdan; Bril, Mykhailo; Serhiienko, Olena; Milevskyi, StanislavThe main problem in the military and commercial sector is to detect the UAV and carry out a successful attack to neutralize it. In this case, sets of various tools from electronic warfare to missile systems can be used for destruction. Small, lightweight UAVs can be shot down with small arms, man-portable EW jamming, or rocket/cannon weapons, requiring more ammunition, limited energy, or high projectile costs. The most pressing issue is the definition of a tool that has intelligent computer control systems, sufficient technical characteristics, is mobile, easy to operate and economically feasible for use in the destruction of low-cost UAVs with a high coefficient of harm. This article discusses the economic and technical feasibility of using a UAV-controlled interceptor using the parallel approach guidance method.