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  • Reviews, suggestions and discussions

  • Analysis and prospects for the application of automated technologies and laser triangulation for visual inspection of weld quality in the production of large-diameter longitudinally welded pipes

    The article presents an analysis of modern methods and prospects for the application of automated technologies and laser triangulation for visual inspection of weld quality in the production of large-diameter longitudinally welded pipes. A review of scientific and patent publications over the past 5 years was conducted using databases such as Google Scholar, Scopus, Web of Science, eLibrary, and Google Patents. Key aspects such as the use of laser triangulation sensors (hereafter referred to as LTS) for assessing the geometric parameters of welds and the integration of machine learning methods to enhance inspection accuracy and automation were considered. The study shows that the application of LTS in combination with machine learning methods ensures high accuracy in evaluating weld quality, which is crucial for ensuring the reliability of pipelines in various industries. Based on the conducted analysis, recommendations for developing an automated system for visual inspection of welds on production lines have been identified.

    Keywords: laser triangulation, visual inspection, welds, automated technologies, machine learning, quality control, large-diameter welded pipes

  • On the issue of using historical buildings for the organization of public facilities of the "third place"

    The article is devoted to ancient mansions and mansions of the XVIII-XX century, which are in an abandoned state. But with the restoration, they could become new cultural spaces. We will talk about three mansions in St. Petersburg (Nobel Mansion, Ernest Igel mansion, Demidov manor) and four country estates in the Leningrad region (Faberge cottage, Mikhailovka Manor, Princess Paley Palace, Eliseev-Novinsky manor). The article describes: the history of the estates up to the present day, their current state against the background of their architectural value. Based on a brief analysis, the following features of the location of the described architectural objects can be distinguished. Within walking distance are: the Nobel Mansion, the Ernest Igel mansion, the Demidov estate. And the following objects are accessible by transport: Faberge cottage, Mikhailovka manor, Princess Paley Palace, Eliseev-Novinsky manor. And it is proposed to transform them into a new point of attraction for people – the "third place", which is an urgent issue for a modern city.

    Keywords: estates, architectural monuments, cultural heritage sites, mansions, monuments of the past, restoration, third place

  • Survey of topology optimization methods for quantum key distribution networks

    At the moment, quantum key distribution (QKD) technology guarantees the highest level of data exchange security, which makes QKD networks one of the most promising areas in the field of computer security. Unfortunately, the problem of topology optimization when planning and extending QKD networks has not attracted enough attention. This paper reviews approaches that use analytical models in the topology optimization problem of quantum key distribution networks. Different methods that solve problems of network capacity and security maximization and cost minimization are reviewed, the utilized algorithms are described, and conclusions about possible further research in this area are drawn.

    Keywords: quantum key distribution, mathematical modeling, network topology, analytical modeling, topology optimization

  • Development of algorithmic and software for an automated web-based information system for electronic document management in the educational field

    The article is devoted to the development of automated information systems (AIS) for electronic document management in the educational field. Using the example of the process of accreditation monitoring of basic professional educational programs implemented in university departments, functional requirements, user algorithms and a prototype AIS (web system) for generating documents have been developed. The use of the considered AIS allows you to flexibly customize the structure of documents and data completion forms for accreditation monitoring, add and edit the required data about teachers in visual web interfaces, automatically generate documents based on information stored in the database, manage the life cycles of documents, evaluate the quality of the documents compiled. The labor intensity of working with documents is significantly simplified compared to existing business processes. The proposed approach can be applied to the development of document flow subsystems for various business processes of a university within the framework of educational, methodological, scientific and other types of activities of employees and, as a result, towards the creation of a unified AIS for electronic document management of the university, based on the integration of all subsystems. The described functionality and algorithms can be adapted to the creation of web systems for electronic document management of computer training complexes (CTC) for collecting and processing data on the progress of students, managing the life cycle of developing exercises for the CTC and performing them by trainees.

    Keywords: automated information systems, electronic document management, information technologies in education, document life cycle, UML graphic notation

  • Technical science. Informatics, computer facilities and management

  • Development of a client-server application for constructing a virtual museum

    The article describes the methodology for developing a client-server application intended for constructing a virtual museum. The creation of the server part of the application with the functions of processing and executing requests from the client part, as well as the creation of a database and interaction with it, is discussed in detail. The client part is developed using the Angular framework and the TypeScript language; the three-dimensional implementation is based on the three.js library, which is an add-on to WebGL technology. The server part is developed on the ASP.NET Core platform in C#. The database schema is based on a Code-First approach using Entity Framework Core. Microsoft SQL Server is used as the database management system.

    Keywords: client-server application, virtual tour designer, virtual museum, three.js library, framework, Angular, ASP.NET Core, Entity Framework Core, Code-First, WebGL

  • Cyber attack as a new type of emergency situations

    The purpose of the study is to focus on the need to introduce the concept of a cyber attack as an emergency situation to reduce the number of cyber threats in institutions, organizations and enterprises when using modern information technologies. The study is devoted to the analysis of cyber attacks on people’s life support facilities in the world and in Russia, in particular. Currently, the media in different countries of the modern world are talking about the avalanche growth in the number of cyber-attacks; this makes information security one of the most important issues in the activities of government agencies and production facilities. The problem of information security is studied in detail, taking into account the consequences of cyber attacks on technological systems in all spheres of human activity.

    Keywords: cybersecurity, cyber emergency, monitoring, Zero Trust model, cyber insurance

  • Vision of the modern concept of medical decision support systems in the Russian healthcare system

    This article presents a study on the approach to the development of a medical decision support system (DSS) for the selection of formulas for calculating the optical strength of intraocular lenses (IOLs) used in the surgical treatment of cataracts. The system is based on the methods of building recommendation systems, which allows you to automate the process of choosing an IOL and minimize the risk of human error. The implementation of the system in the practice of medical organizations is expected to be highly accurate and efficient, significantly reduce the time allowed for decision-making, as well as improve the results of surgical interventions.

    Keywords: intraocular lens, ophthalmology, formulas for calculating optical strength, web application, machine learning, eye parameters, prognostic model, recommendation system, prediction accuracy, medical decision

  • Designing multicomponent simulation models using GPT-based LLM

    Modern simulation model design involves a wide range of specialists from various fields. Additional resources are also required for the development and debugging of software code. This study is aimed at demonstrating the capabilities of large language models (LLM) applied at all stages of creating and using simulation models, starting from the formalization of dynamic systems models, and assessing the contribution of these technologies to speeding up the creation of simulation models and reducing their complexity.The model development methodology includes stages of formalization, verification, and the creation of a mathematical model based on dialogues with LLMs. Experiments were conducted using the example of creating a multi-agent community of robots using hybrid automata. The results of the experiments showed that the model created with the help of LLMs demonstrates identical outcomes compared to the model developed in a specialized simulation environment. Based on the analysis of the experimental results, it can be concluded that there is significant potential for the use of LLMs to accelerate and simplify the process of creating complex simulation models.

    Keywords: Simulation modeling, large language model, neural network, GPT-4, simulation environment, mathematical model

  • Application of language neural network models for malware detection

    The growing popularity of large language models in various fields of scientific and industrial activity leads to the emergence of solutions using these technologies for completely different tasks. This article suggests using the BERT, GPT, and GPT-2 language models to detect malicious code. The neural network model, previously trained on natural texts, is further trained on a preprocessed dataset containing program files with malicious and harmless code. The preprocessing of the dataset consists in the fact that program files in the form of machine instructions are translated into a textual description in a formalized language. The model trained in this way is used for the task of classifying software based on the indication of the content of malicious code in it. The article provides information about the conducted experiment on the use of the proposed model. The quality of this approach is evaluated in comparison with existing antivirus technologies. Ways to improve the characteristics of the model are also suggested.

    Keywords: antivirus, neural network, language models, malicious code, machine learning, model training, fine tuning, BERT, GPT, GPT-2

  • Quality Assessment of Natural Landscape Images Colorization based on Neural Network Autoencoder

    The article discusses the application of neural network autoencoder in the problem of monochrome image colorization. The description of the network architecture, the applied training method and the method of preparing training and validation data is given. A dataset consisting of 540 natural landscape images with a resolution of 256 by 256 pixels was used for training. The results of comparing the quality of the outputs of the obtained model were evaluated and the average coefficients of metrics as well as the mean squared error of the VGG model outputs are presented.

    Keywords: neural networks, machine learning, autoencoder, image quality analysis, colorization, CIELAB

  • Algorithm for generating three-dimensional terrain models in the monocular case using deep learning models

    The article is devoted to the development of an algorithm for three-dimensional terrain reconstruction based on single satellite images. The algorithm is based on the algorithmic formation of three-dimensional models based on the output data of two deep learning models to solve the problems of elevation restoration and instance segmentation, respectively. The paper also presents methods for processing large satellite images with deep learning models. The algorithm proposed in the framework of the work makes it possible to significantly reduce the requirements for input data in the problem of three-dimensional reconstruction.

    Keywords: three-dimensional reconstruction, deep learning, computer vision, elevation restoration, segmentation, depth determination, contour approximation

  • About the programming environment for programmable logic controllers

    The article discusses the capabilities of the domestic software development environment CoDeSys using the example of a control program for regulating automobile traffic of an enterprise within its own territory.

    Keywords: program, controller, variable, code, functional block, automated systems

  • Research on the use of the MatLab Simulink software environment as a development environment for microcontrollers of the STM32 family

    This article presents a study aimed at evaluating the use of the Matlab Simulink software environment for the development of microcontroller systems of the STM32 family. The possibilities of Simulink in the field of modeling and testing control algorithms, as well as in generating code that can be directly applied to microcontrollers, are analyzed. The article describes in detail the process of creating conceptual models and their dynamic modeling. The advantages of using Simulink include speeding up the development process through automated assembly and the ability to adjust model parameters in real time. In addition, Simulink allows you to generate processor-optimized code, which significantly increases the efficiency of microcontroller systems. However, attention is also drawn to some limitations associated with using Simulink, such as the need to create a configuration file in STM32CubeMX and potential difficulties in configuring it. The article provides an in-depth analysis of the application of Simulink in the context of the development of STM32 microcontrollers and can become a key material for those who want to deepen their knowledge in this area.

    Keywords: model-oriented programming, MatLab, Simulink, STM32, microcontroller, code generation, automatic control system, DC motor

  • Intelligent forecasting of supply reliability as a key factor in ensuring information security of the critical infrastructure of financial sector organizations

    The article proposes the use of intelligent methods for predicting the reliability of contract execution as a key element of the system for ensuring information security of the critical infrastructure of financial sector organizations. Based on the analysis of historical data and the use of machine learning methods, a comprehensive model for assessing and predicting the risks of failure or poor performance of contracts by suppliers has been developed. It is shown how the use of predictive analytics can improve the efficiency of information security risk management, optimize planning and resource allocation, and make informed decisions when interacting with suppliers of critical services and equipment.

    Keywords: intelligent system, predictive analytics, information security, critical infrastructure, financial sector, contract execution, machine learning

  • Design and Development of Automated Information Systems for Recording Parameters of the Technological Process of Production of an Industrial Enterprise

    The article is devoted to the creation of a highly specialized automated information system for recording the parameters of the technological process of production of an industrial enterprise. The development of such software products will simplify and speed up the work of technologists and reduce the influence of the human factor in collecting and processing data.

    Keywords: automated information system, system for recording production process parameters, Rammler-Breich diagram, role-based data access system

  • Multi-agent search engine optimization algorithm based on hybridization and co-evolutionary procedures

    The paper proposes a hybrid multi-agent solution search algorithm containing procedures that simulate the behavior of a bee colony, a swarm of agents and co-evolution methods, with a reconfigurable architecture. The developed hybrid algorithm is based on a hierarchical multi-population approach, which allows, using the diversity of a set of solutions, to expand the areas of search for solutions. Formulations of metaheuristics for a bee colony and a swarm of agents of a canonical species are presented. As a measure of the similarity of two solutions, affinity is used - a measure of equivalence, relatedness (similarity, closeness) of two solutions. The principle of operation and application of the directed mutation operator is revealed. A description of the modified chromosome swarm paradigm is given, which provides the ability to search for solutions with integer parameter values, in contrast to canonical methods. The time complexity of the algorithm is O(n2)-O(n3).

    Keywords: swarm of agents, bee colony, co-evolution, search space, hybridization, reconfigurable architecture

  • Technical science. Building and architecture

  • Functional processes that determine the spatial planning solution of industrial buildings in coastal areas

    The design and construction of industrial buildings in coastal areas requires careful consideration of functional processes, logistics efficiency and environmental dynamics. The article examines the relationship between operational requirements and spatial planning strategies, emphasizes the need for individual solutions to solve unique problems that arise in coastal zones. By combining workflow optimization, logistical considerations and safety measures, industrial enterprises can increase productivity, ensure sustainability and reduce risks in difficult environments, emphasizing the importance of integrated planning and strategic positioning for sustainable development.

    Keywords: industrial buildings, coastal territories, design conditions on coastal territories, sustainable architecture, energy conservation, energy efficiency, environmental friendliness, green architecture, eco-friendly design, functional processes

  • Load-Bearing Capacity of Ring Flange Joints of Welded Pipes with Different Diameters

    To develop a methodology for assessing the strength of ring flanges, research was conducted on the load-bearing capacity of welded pipe joints of varying diameters. The study employed the component finite element method (CFEM) implemented in the IDEAStatiCa Connection software. To verify the obtained results, a numerical experiment was carried out using the ANSYS software package. The investigation considered several types of flange joints made from welded pipes with different diameters. Parameters were selected based on common sections used according to russian Series 3.400-8 (Issue 2). The study found that for all cases, the highest stresses occurred on the flange at the joint with the smaller diameter pipe. The analysis indicated that the CFEM's applicability should be limited to diameter-to-wall-thickness ratios (D1/t1) of up to 40. Beyond this threshold, the CFEM does not accurately predict the strength of the joints due to the significant deformation that occurs in the pipe walls, forming a truncated cone shape at the flange junctions. For practical applications, formulas are proposed to check the strength of ring flanges. These formulas account for the weakening of the plates by bolt holes and provide conservative results. The findings highlight the necessity for additional numerical and physical experiments to refine the methodology for cases with D1/t1 ratios exceeding 75. The proposed approach offers a practical solution for evaluating the strength of ring flanges in welded pipe joints of varying diameters, contributing to the development of relevant engineering standards.

    Keywords: load-bearing capacity, ring flanges, welded pipes, assembly joints, strength, component method, numerical experiment

  • Deformability of the soft shell of sawtooth-type fabric structures

    Framed fabric roof structures of the sawtooth-type are considered. The structures are arranged on rectangular plan. They consist of a number of sectors which are separated by arch-shaped supporting ribs. The sectors are covered with a prestressed soft shell. Geometric nonlinear static analysis of the shell is performed taking into account the effect of snow and wind loads. The general dimensions of the shell and the prestress value are considered as the primary variables. Quantitative assessment of deformation of the shell is carried out by means of so-called deformability index. The index is reciprocal to the relative deflection. A functional expression for approximating the deformability index is proposed. The expression is to be used at the stage of developing the design solutions for fabric structures. The coefficients of the function are found by means of the least squares method. The guidance for assigning the main parameters of the sawtooth-type fabric structures are given.

    Keywords: fabric structure, roof structure, soft shell, sawtooth roof, geometric parameters, prestress, deformability, approximation

  • Automation of recognition of radio listeners' requests

    The article describes the automation of the audio recording recognition process in order to identify the ordered song on the radio station. The Golos Russian speech recognition model from the SberDevices was used. An algorithm for correcting the text obtained as a result of audio recording analysis using the Golos model based on the Levenshtein distance method has been developed. For recognized requests from radio listeners, interaction with the DIGISPOT II database is organized (formation and execution of queries to search for artists and their songs).

    Keywords: speech recognition, Golos, Digispot II

  • Development of paint and varnish compositions based on heat-treated phosphogypsum

    A study was conducted on the development of filler compositions based on heat-treated phosphogypsum for the production of paints and varnishes with luminescent ability. In the course of the study, it was revealed that the reduced phosphogypsum, which exhibits the properties of an ultraviolet pigment, can be used to produce paints and varnishes based on colorless varnish XB-784. When using a colorless varnish and synthesized ultraviolet pigment, paint and varnish materials can be obtained that form almost transparent coatings and have a luminescent ability. The introduction of unreconstructed phosphogypsum as a filler increases the covering capacity of paint coatings. Non-reduced heat-treated phosphogypsum as a filler does not give a luminescent glow under the influence of UV irradiation, however, it increases the hiding power of the material and enhances the luminescent ability of the UV pigment.

    Keywords: filler compositions, colorless varnish, ultraviolet pigments, phosphogypsum, waste recycling

  • Organizational and managerial decisions on the future placement of social infrastructure facilities

    The construction of new modern buildings for social purposes, including healthcare facilities, is an important area of ​​urban planning policy. When planning the construction of such buildings, it is important to take into account the territorial and spatial factor. The use of geographic information systems as a tool for spatial analysis and collection of information on the state of social infrastructure makes it possible to visualize data from a comprehensive assessment of the territory and significantly simplify analytical work, which makes it possible to optimize organizational and managerial processes for the long-term development of settlements.

    Keywords: construction, social infrastructure, healthcare, comprehensive assessment of the territory, geoinformation technologies