2024 № 4 Енергозбереження. Енергетика. Енергоаудит

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Aspects of functioning of tourist destinations in the sphere of tourism
(Національний технічний університет "Харківський політехнічний інститут", 2024) Kompaniiets, Iryna
The article examines the peculiarities of functioning of tourist destinations as an important o ect of management in the tourism sector. The key components of a tourist destination are identified: convenience, accessibility, organisation of tourist activity, and the offer of the existing tourist product. It is substantiated that an essential prerequisite for the functioning of a tourist destination is its resources and image, which create motivation for travel. The features of successful management of a tourist destination are analysed to ensure its continuous development. The strategies and means of management such as marketing tactics, resource supply and infrastructure development are considered. The importance of a thorough approach to managing a tourist destination, taking into account its unique features, potential and impact on the local environment, is shown. It is determined that the understanding and practical application of management strategies aimed at improving the image of a tourist destination and meeting the needs of different groups of tourists is a priority for the development of a tourist destination.
Blind signal separation applications and methods
(Національний технічний університет "Харківський політехнічний інститут", 2024) Monastyrskyi, Mykyta
Blind signal separation is the task of separating the given mixture signal into two or more corresponding sources. It finds an application in many fields of human activity such as medicine, telecommunications, art and many more and is a crucial task in signal processing. However, the task itself appears to be quite challenging due to its ill-posed nature. Despite that many modern machine learning-based approaches achieve the state-of-the-art results in different blind source separation tasks (e. g. audio or music source separation) however these methods can suffer from unwanted artifacts in the source signals estimates. This paper presents an overview of the methods for blind source separation covering methods from traditional statistical ones to modern machine learning-based approaches and applications of the results of blind source separation task. Moreover, we discuss some potential areas of research in the field of blind source separation to facilitate further research and develop powerful solutions for this task.
Digitalization as the basis of the EU economic policy in creating a single international digital market
(Національний технічний університет "Харківський політехнічний інститут", 2024) Mekhovych, Serhii; Poliakova, Tetiana; Kuzmynskyi, Kostiantyn
The article deals with topical issues related to the creation of a single international digital market. The conditions in which Ukraine's industrial complex will have to operate in the near future are influenced by globalization. The European Union (EU) actively supports and develops the digital economy as a basis for the development of all sectors of the regional economy. The EU's economic policy promotes the digitalization of societies in the EU member states and aims to facilitate the development of a single digital market and the eventual creation of the EU Digital Union. The creation of a single digital market is one of the main prospects and challenges for the European Union. Digitalization has created a world without borders, and its implementation requires a new form of governance based on its specific characteristics. This process requires addressing a number of practical and political issues in the economic and trade relations of the international community.The most influential factors in these processes are digital transformation, the pandemic, and military conflicts. The article provides brief information on the essence of these processes.
Mechanisms of using foresight methods to increase the efficiency of innovative marketing
(Національний технічний університет "Харківський політехнічний інститут", 2024) Poliakova, Tetiana; Mekhovych, Kateryna
The article considers some of the theoretical issues regarding the methods of using the Foresight technology in determining the formats and mechanisms of strategic forecasting. This is a relevant topic from the point of view of the revival of the economy of Ukraine. The essence and structure of foresight methods are considered, their features are highlighted. Various approaches to defining this definition are presented. The proper interpretation of the concept of "foresight" is proposed as a special unifying technology for forming priorities for the strategic development of countries, regions, and enterprises and society, which allows to unite all interested parties on the basis of a transparent vision of possible development scenarios and agree on the most expedient option from the point of view of risks and the most effective from the point of view of economic consequences. Separate attention is paid to the tasks of innovative marketing. The connection between innovative marketing and the methods of foresight technologies is substantiated. The characteristics of innovative marketing are given. The article substantiates that the use of foresight methods will have an additional effect in marketing research and will significantly affect strategic planning. It is proven that such a mechanism will ensure transparent interaction within the triple spiral and with society. In turn, such interaction will give impetus to the achievement of the country's strategic goals in the economy, social sphere, and public policy.
Study of energy efficiency and thermal state of asynchronous motors, using the method of increasing energy efficiency by reducing mechanical losses
(Національний технічний університет "Харківський політехнічний інститут", 2024) Dzenis, Sergii
This research examines the problem of design and development of the 3-phase induction motors with basic energy efficiency levels(IE1, IE2) with squirrel cage. It addresses those engineers who are involved in the process of improving the design and development of energy-efficient motors. Also, researchers are interested in finding the relationship between temperature state and energy efficiency. The article touches on global energy conservation issues and saving strategies. The originality of the text lies in the study of thermal and electrical fields of the design of commercially produced motors, and the study of the influence of mechanical losses on the temperature state and efficiency level of motors. The work continues in the direction of improving active and passive motor cooling schemes.
The stock market of Ukraine and its relationship with stock markets of the world using the example of correlation of stock indices
(Національний технічний університет "Харківський політехнічний інститут", 2024) Serhiienko, Olena; Poliakova, Tetiana; Savchenko, Roman
The work provides a brief definition of the stock market and describes its role in the e led. For introductory purposes, a list of the world's most famous stock exchanges is provided, with an emphasis on the peculiarities of their history and activity. Stock indices are described as a result and consequence of stock exchange trading, some of the most famous of them are listed. The transition to the stock market of Ukraine with its operators (exchanges) and indices is underway. The question arises about the existence of dependence between stock indices of Ukraine and stock indices of other countries of the world. It is proposed to use correlation analysis in order to find and confirm the existence of links between indices, and a brief description of the analysis is provided. An overview of the data collected for calculations is given. The results of the work are a list of correlation coefficients for pairs of stock indices, which confirm the idea of certain dependencies between them.
Видатні вчені НТУ "ХПІ" – еліта держави
(Національний технічний університет "Харківський політехнічний інститут", 2024) б/а
Енергетичні, науково-технічні та економічні аспекти створення електропривода тролейбуса з гібридним джерелом живлення
(Національний технічний університет "Харківський політехнічний інститут", 2024) Клепіков, Володимир Борисович; Собченко, Віталій Вікторович
Надані переваги використання в міському електротранспорті тролейбусів з автономним рухом і вказано на доцільність поширення їх впровадження в Україні, враховуючи воєнні і економічні обставини. Обґрунтовано функціональну схему електроприводу з гібридним джерелом електроживлення, що містить акумуляторну і суперконденсаторну батареї та створює умови рекуперації енергії в гальмівних режимах і дозволяє здійснювати просту модернізацію існуючого електроприводу. Виведені співвідношення для розрахунку ємності суперконденсаторної батареї. Запропоновано методику та вказано особливості вибору параметрів акумуляторної та суперконденсаторної батарей. Вказано, що запропоноване технічне рішення сприяє підвищенню пожежної безпеки за рахунок поліпшення теплового режиму акумуляторної батареї.