No 4 (2023)

In the study the authors adopt a new systematic approach to the early diagnosis of dementia as part of the paramedical first aid system. The main task is to identify dementia at an early stage. The authors processed open statistical medical data. An algorithm for emulating reflected signals of hippocampal structures has been developed. The necessity of predictive modeling and development of a software module is substantiated. The research presents an analysis of existing foreign software solutions. A review of the requirements of medical standards was carried out. The environment of the software implementation of the "software emulator of hippocampal signals" is defined. The substantiation of the software implementation environment is carried out. The choice of hardware implementation tools was carried out. The stages of design are presented. The characteristics of hippocampal rhythms are described. A brief description of the differences in the indicators of electroencephalograms of ill and healthy patients is given. The process of designing the architecture of the emulator and the user interface is presented. Approaches to testing and debugging of the software module are described. The study presents an algorithm for emulating hippocampal signals. The algorithm emulates the readings of electroencephalograms of brain signals of the hippocampus of a healthy and ill person. The reverse reflected signals are taken according to medical standards from the T3-T6 sensors of the international recognizing system "10-20". A software module has been developed and tested. The terms of reference for the design of the emulator is attached. The developed emulator is designed to facilitate medical research in the field of early diagnosis and detection of diseases of the brain. The use of the emulator is recommended for commercial projects using reflected signals of the hippocampal structure of the brain. The emulator is developed in Java and is cross-platform.

The article describes the features of the construction and design of an aerodynamic ground-effect craft on a flyover. The issues of designing the profile of the tray, various shapes of the wing and fuselage, as well as a flyover with elliptical structures were considered. For the transportation of passengers and cargo it is proposed to use an elliptical aerodynamic ground-effect craft moving along a curvilinear tray, using the effect of a screen at a height of not more than 2.5 meters, using 6 bypass electric fan engines as a propulsion device. It was proposed to use composite materials of a modular type for the guides of the load-carrying unit for elliptical airfoils in a cargo-passenger mode. Design solutions for various variants of an aerodynamic ground-effect craft equipped with noiseless propellers using the ground effect with parabolic guides of a ground-flyover design for laying a multifunctional high-speed main route between the megacenters of Russia and between countries have been developed in the present work. The novelty of the research is the fact that it is proposed to develop new transport systems that allow improving passenger and cargo transportation on a new structural and technological basis in the form of an aerodynamic ground-effect craft in ground-flyover mode.

The paper deals with a tracing technique for large branched pipeline hydraulic networks of the high optimality rank. The novelty of the method is that while increasing the optimization rank of the designed networks, the redundant graph of possible connections between nodes is dynamically reduced. In this case, the redundant graph of the follow-up rank is formed from previous networks rank. The method provides a computer solution to the problem of tracing of large networks containing more than one hundred nodes of the seventh optimality rank. The system is developed for large pipeline networks design of regional and interregional pipe distribution network (PDN) for irrigation purpose.

The article is devoted to the development of a numerical method for solving the optimization problem of trajectory control of a single UAV based on the penalty functions method with computational acceleration. The article described a numerical method for finding a solution to the trajectory control problem, presented as a quadratic programming problem, using the penalty function method with Aitken's computational acceleration.

The article presents data on the dynamics of increasing milk productivity, dairy products production, the sale of breeding heifers and calves, their economic indicators obtained during the improvement in different periods of cows of the red steppe breed and breeds related to them: red Danish, Angeln and in recent years - red-and-white Holstein breeds. To fully meet the standards of consumption of livestock products by the population, recommended by the Institute of Nutrition, it is necessary to increase the number of cows, increase their productivity and dairy production. A dynamic increase in the level of milk productivity, milk quality, a variety of dairy products and their profitability has been achieved in the farm due to the systematic improvement of the level of feeding and rational use of the genetic potential of the red steppe breed, enriched by the influence of related breeds. Thanks to the purposeful breeding work of farms such as the "Lenintsy" cooperative for the production of milk and dairy products, the population of the republic consumes 285 kg of milk and dairy products, which is 13 % and 11.7 % more than residents of the Russian Federation and of the North Caucasus Federal District.

The relevance of the study is based on the need for finding a consensus between a domestic producer of science-intensive products and a foreign customer to achieve satisfaction with technical characteristics, economic indicators, cost of integrated logistics support for technical operation for the export situation. The subject of the study is the digital twin of the decision support system. This article solves the problem of logical justification of input variable parameters. The objects of the research are mathematical tools, iterative algorithm, logical ordering of input parameters. The empirical argumentation of the logical ordering of the input variable and immutable parameters of the system justifies the number of carried out iterations. The mesoeconomical theory of the interaction of economic systems of the middle hierarchical level, namely, the radar industry and the international export market, is used. The publication presents the cost management factors of integrated logistics support. The results of iterations are described. It is determined that in a multi-factor management model, the cost of integrated logistics support for technical operation has a greater weight in terms of a positive export outcome. The final iteration is achievement of supply and demand balance in the international market of science-intensive products export.

The article considers the solution of the problem of systematization of models used to manage housing and communal services. The purpose of the research is to clarify the classification of models used to model the activities of enterprises in the field of housing and communal services, regional housing and communal services, as well as housing and communal services in general. The object of research in this work is housing and communal services. The subject of research is the set of models used to manage housing and communal services. The initial data for research are materials on the subject area "Models in the management of housing and communal services", given in the works of Russian scientists. The research methods used in the work include a systematic approach, methods of analysis and synthesis, as well as a set-theoretic approach. As a result of the analysis of publications in the selected subject area, eight types of models were identified. The correspondence of models of various types, obtained as a result of research, to the classification of models obtained earlier is considered. The classification of models obtained earlier has been refined due to the emergence of new models using various types of optimization, due to new models using digital twins of buildings, as well as due to new formal theoretical models that describe the methodology for creating models taking into account various factors.

The purpose of this work is to analyze and evaluate the possibilities of digitalization of the education economy in the context of sanctions. In order to achieve these goals, the tasks are defined: to identify areas of impact on the education economy; to analyze the prospects for digitalization of the education economy, to determine the place of digitalization in the package of measures to level sanctions. The theoretical basis of the study was works of Russian and foreign scientists. The information base is the Russian normative legal acts, Internet sources, scientific publications on the topic. General scientific methods used in the work are: analysis and synthesis, comparison, generalization; economic analysis. In the course of the work, it was revealed that the education economy has specific characteristics: the formation of a market component only in the 90s of the last century, inconsistency between the labor market and educational organizations, the traditional inertia of the industry, the applied nature of the economy. The study found that economic sanctions had an impact on the following areas of the education economy: the development of a scientific and pedagogical school, the material and technical base, information resources, IT products and solutions. Digitalization of the education economy is one of the systemic measures to neutralize the sanctions impact on the industry. Main directions: access to educational services using distance technologies, digitalization of the educational space, formation of competencies in the field of digital education economy, digitalization of management and support systems and knowledge verification systems, personalization of education, creation of new specialties, specializations and competencies.

The research is devoted to the discovery and introduction into the scientific use of rock carvings found in April 2023 and named - Khagondokovo petroglyphs. Unique in the richness of images, the rock inscriptions of Khagondokovo are located in two historical places, not far from each other. For the convenience of labeling the rock inscriptions, they were named Khagondokovo I and Khagondkovo II. The petroglyphs are signs of various geometric shapes carved and painted with dark red ochre on the rock. The study of Khagondokovo petroglyphs is a new stage in the historiography to study the most ancient rock art. It allows to draw conclusions about the distribution and external relations of prehistoric symbols in the North Caucasus. These facts determine the relevance of the present research. Finds of such petroglyphs in medieval settlements indicate their long-term use by the local population. It is quite likely that they were transformed over time into a system of family signs of Caucasians. The study of Khagondokovo rock carvings allows us to conclude that they are similar to other petroglyphs on rocks, stones and megaliths of the North Caucasus, Crimea and the Mediterranean basin. This aspect requires more detailed research in the future. The purpose of this article is to introduce into scientific use the recently discovered petroglyphs of Khagondokovo which, according to the richness of images, are quite valuable for the study of the history and archeology of the North Caucasus.