Software & Systems

Articles of journal № 1 at 2025 year.

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11. Solving approximation problems: Implementing a neuro-fuzzy network model based on a Bayesian logical-probabilistic approach [№1 за 2025 год]
Authors: Khamchichev G.A., G.I. Kozhomberdieva
Visitors: 4066
The paper describes the implementation of a neuro-fuzzy network (NFN) model based on Bayesian logical-probabilistic fuzzy inference model as a specialized software tool. In addition to the NFN model itself, it implements adapted algorithms for constructing (grid partitioning algorithm for generating fuzzy rules) and training (error backpropagation algorithm and hybrid algorithm) NFN known from ANFIS network in MATLAB. The designed software tool is written in Java. It solves practical problems and investigates the effectiveness and applications of NFN based on the Bayesian logical-probabilistic fuzzy inference model. The authors discuss the experience of building and training the proposed NFN type using the developed toolkit. The authors also consider the creation and training examples of NFNs designed to solve specific approximation problems of multivariable functions based on real open and synthetic data sets. The paper compares the results obtained using the developed tool and the ANFIS tool from MATLAB. The authors confirmed that the proposed NFN model can be a universal approximator of complex functional dependencies. This confirms its efficiency and possibilities of using it in different fields. The inclusion of various approximation quality metrics in the program allows evaluating network training quality, accuracy, stability, and adaptability to new data comprehensively. Access restrictions for Russian users to foreign commercial software enhance the practical significance of the developed software tool based on the original NFN model; it makes the development relevant and useful for a wide range of users.

12. Design principles of a domestic platform for scientific dataset exchange [№1 за 2025 год]
Author: Garev, K.V.
Visitors: 2548
The paper considers prerequisites and proposals for establishing a domestic platform for a scientific dataset exchange in terms of global trends related to the development of open science and spread of FAIR-principles. The authors analyze foreign initiatives (EUDAT, EOSC, DataONE, Dryad, Zenodo) to identify key problems that hinder effective use, preservation and reuse of scientific data. These problems include the lack of uniform regulations for dataset description, disparate infrastructure solutions, insufficient cross-platform interoperability, and difficulty in ensuring reproducibility of research. The authors focus on the role of the professional community, the importance of creating an environment for sharing experience, conducting interdisciplinary projects, and improving skills in working with large datasets. The paper emphasizes the need to systematize the work with scientific data and to unify the requirements for their collection, storage, processing and presentation. This will increase the transparency of research processes. The paper substantiates the feasibility of implementing distributed storage mechanisms, federated authentication and high-performance computing resources capable of meeting the needs of the domestic scientific community. Finally, it outlines proposals for designing a unified platform for scientific dataset exchange: from developing methodological regulations and standards for interaction with external systems to principles of integrating analytical tools and ensuring reliable data protection.

13. Applying specialized software packages to automate engineering equipment calculation [№1 за 2025 год]
Authors: Osipov, E.V., Khomenko, A.A., Osipova, L.E.
Visitors: 3309
The purpose of this paper is to develop an approach in order for engineering methods of equipment calculation to form as separate programs integrated with simulation-based CAD systems, and the results to be input data for a CAD-system. The research focuses on toluene settling from water-methanol mixture, the particular emphasis is on non-standard technological equipment of the settling process (settler). The authors present technological calculations for material and energy balances in a universal simulation program. They determine the geometric dimensions of non-standard equipment using the developed program. A 3D model of the equipment is formed in a graphical CAD-system. The approach is implemented in the form of a program in VBA language, which is connected with the model of a settling process. VBA language is basic within the software used and widespread in automating calculations within the system. Since the program database does not contain a settler calculation module, the authors have developed this module using the Import User Model tool. A parametric analysis was conducted using the Case Study add-on. The authors identified the maximum allowable methanol content in the initial mixture (up to 0.3 mass fraction), at which the density of the water-methanol mixture exceeds the density of the toluene phase. The authors calculated the main dimensions of the equipment using engineering methods, which are implemented as a separate program linked to the model in the simulation CAD system. The authors have developed a 3D model of the equipment body in a graphical CAD system using variables. It is the basis of the assembly of the settler, supplemented with standard elements from the program database. As a result, the developed program determines settler dimensions; it links modeling and graphical CAD system. It allows automating engineering methods of energy efficient equipment calculation.

14. Temperature field modeling in additive manufacturing of metal products [№1 за 2025 год]
Authors: Kakorin, D.D., Margolis B.I.
Visitors: 4645
The paper substantiates the necessity to study the nature of temperature distribution in additive manufacturing of metal products. It considers the peculiarities of modeling a temperature field, which arises during layer-by-layer electric arc welding of flat geometric metal parts taking into account asymmetric convection-radiation heat exchange between the surface and the environment. The authors described in detail the temperature field calculation in two-dimensional spatial coordinates based on numerical finite-difference methods. They took into account the possibility of shifting the starting point of the welded layer from the base edge, changing the holding time between the welded layers and the use of forced air metal cooling. The authors considered the mechanism of temperature determination in the structure boundary points, directly in contact with the molten metal. They also developed a program in MatLab that allows modeling the temperature field in the product based on specified thermophysical characteristics of the clad metal, parameters of convective-radiation heat exchange and geometric characteristics of the welded structure. The paper gives texts of TempSurfacing functions for modeling the temperature field and TempDepend for taking into account the dependence of thermophysical properties of metal on its temperature before surfacing a new layer. The authors checked the performance of the program on the example of surfacing a single layer of metal 2 mm high on a metal base 5 mm high. There is a view of the program window for inputting initial data, and the re-sults of modeling the temperature field in two-dimensional spatial coordinates in text and graphical forms. The obtained temperature field model allows taking into account the new metal parts addition along the welded layer length, as well as the systematic increase in the structure height due to layer-by-layer metal welding. The developed model serves to establish the optimal thermal cycle of the layer-by-layer arc welding process and to identify the heat transfer conditions taking into account changes in the operating parameters of the additive manufacturing technological process.

15. Optimization of technological processes for nesting parts: Using a database of sheet cutting cost parameters [№1 за 2025 год]
Authors: Tavaeva, A.F., Petunin A.A.
Visitors: 3700
The paper considers an integrated nesting and routing task. It combines the problems of nesting optimization and cost minimization of the cutting process with numerical control (CNC). To solve the problem and develop appropriate optimization algorithms, it is necessary to obtain scientifically substantiated data. Specifically, the data on the values of the cost parameters of a sheet cutting process on the CNC technological equipment for different grades and thicknesses of processed materials. The paper describes a database of such cost process parameters. There is also its diagram, basic structure and organization. The authors chose a relational model to store the data on cost parameters. It consists of 8 tables and contains information on grades and thicknesses of materials processed, cost and density values of materials, cost per unit of cutting tool path at working and idle speeds, as well as one piercing point. Usability of working with data in the database (visualization, adding new records, deleting records, calculating cost parameters for new material grades and thicknesses, changing parameter values) is provided by the designed software in Python. The authors propose to use it either as a separate product or together with the software for automatic design of control programs for CNC sheet cutting equipment to solve practical problems. The authors show this work significance on a model example of designing nesting and tool routing for one type of a laser cutting machine.

16. Improving ergonomic parameters of head-mounted display in augmented reality glasses for civil aviation [№1 за 2025 год]
Authors: Greshnikov, I.I., Davydov, D.A., Gonchar, B.I., Sokolov, A.V., Konovalova, D.V.
Visitors: 2349
The paper analyzes existing solutions in the field of head-mounted display. The authors offer their own concept of pilot and navigation information presentation in augmented reality glasses for applying in civil aviation. The main purpose of the developed display is to provide the pilot with the necessary flight and navigation information at the target flight phase. The research method consists in analyzing the existing solutions, identifying their shortcomings and adjusting the developed indication based on the recommendations of experienced pilots. The authors have identified the main features of flight and navigation information presentation that contribute to the ergonomic performance improvement. For example, using independent graphical layers of flight and navigation information objects, changing image layout depending on a flight phase, using several colors, voice control to display the required display layer. Consequently, the authors presented the software that allows projecting graphic images of flight and navigation information mnemonic symbols into the cockpit external space simulated in Unity environment. These display objects are placed according to the following parameters or to their combination: position of the glasses, path velocity vector, airplane construction axis, cockpit external space. The developed software also allows adding graphic layers from synthesized and enhanced vision systems. The paper pre-sents a head-mounted display demonstrator based on this concept. The authors reviewed the architecture and functionality of the demonstrator including pilot-visible images in augmented reality glasses. The practical significance of this work is in the improvement of head-mounted display ergonomic parameters in comparison with the existing display variants of pilot navigation information.

17. Database on microbiological wastewater and soil treatment processes: An effective tool for data and knowledge representation [№1 за 2025 год]
Authors: Dosaev, A.A., Skichko, A.S., Menshutina N.V.
Visitors: 3955
The research focuses on a system analysis of the subject area, particularly the processes of wastewater and soil microbiological treatment and the database development. The paper is relevant due to the problem of unstructured large volumes of incoming heterogeneous information in this area. The authors analyzed the literature describing the existing databases on microbiological treatment and indicating their advantages and disadvantages. They justified the relevance of developing a data-base that integrates all key components of microbiological treatment processes of wastewater and soil. The authors conducted a systematic analysis of the subject area. Using a systematic approach, they constructed a data storage architecture. They noted the advantages of the developed system and showed examples of search query execution. The developed the Microbiological Purification database contains extensive information on pollutants and microorganisms with descriptions of microbiological cleaning processes. The proposed data storage system is useful for researchers whose area of scientific interest is microbiological cleaning processes, microbiology, chemistry and chemical technology. It allows reducing the time for information retrieval during scientific research work.

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