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  • Forecasting and managing traffic of telecommunication systems using artificial intelligence systems

    In this paper, we reviewed and analyzed various time series forecasting models using data collected from IoT mobile devices. The main attention is paid to models describing the behavior of traffic in telecommunication systems. Forecasting methods such as exponential smoothing, linear regression, autoregressive integrated moving average (ARIMA), and N-BEATS, which uses fully connected neural network layers to forecast univariate time series, are covered. The article briefly describes the features of each model, examines the process of their training, and conducts a comparative analysis of the quality of training. Based on data analysis, it was noted that for the UDP protocol, the ARIMA model has the best learning quality, for the TCP protocol - linear regression, and for the HTTPS protocol - ARIMA.

    Keywords: telecommunication systems, traffic analysis, forecasting models, QoS, artificial intelligence, linear regression, ARIMA, Theta, N-BEATS

  • Potential for the development of the architectural urban context in the formation of transit spaces of university complexes

    The possibility of architectural and spatial organization of a series of urban interiors located along the route of communication between buildings and faculties of university complexes of an “integrated” and “distributed” type is being considered. Requirements for such transit spaces are being formed. Options for a scenario for organizing such spaces are proposed, which is an algorithm for the spatial formation of successive functional zones and the student’s consciousness throughout the process of movement and learning. “Architectural-environmental modules” are proposed as a structural unit, including various equipment options and small architectural forms - as a means of organizing spatial scenarios. A typology of similar modules has been developed for various transit zones and types of urban spaces. This approach allows us to form and support the brand of the university as a unified communication space.

    Keywords: university complex, transit urban spaces, scenario approach, functional-thematic zones, architectural and environmental modules.

  • Monitoring soil soaking in the foundation area using dynamic probing

    Water saturation of soils in the area of foundations is accompanied by a deterioration in their bearing capacity and is often detected only with the appearance of the first signs of deformation. Effective monitoring of soil conditions helps reduce escalating damage. For this purpose, a variant of dynamic penetration was developed and applied, which made it possible to establish a fivefold reduction in the resistance of soils to indenter penetration in the water-saturated zone in comparison with their natural state. The approach provides rapid mapping of the state of the soil mass in areas of expected soaking, for example, in the area of backfilling of foundations. The results are applicable for monitoring soil soaking in technogenic conditions and are of interest to a wide range of specialists in the field of construction.

    Keywords: flooding, dynamic penetration, monitoring, mapping, water-saturated soil

  • Designing mechanisms for network data exchange between intelligent autonomous robots based on distributed key-value storage

    This work examines the functioning of a team of agents united through a network, and considers the architecture of a distributed data processing system based on an overlay network. The goal of this work is to develop a comprehensive solution that provided signal preprocessing, reliability of data storage and transmission, and high speed of decision making. The distributed key-value storage Etcd has been integrated with the implemented overlay network client by using the tun interface on each agent. The client encapsulates the transmitted IPv4 data packets for further sending through the underlying IPv6 network using a protocol that ensures reliable delivery. The solution considered in the work allows you to autonomously create quickly deployable network exchange mechanisms and guarantee data delivery with an acceptable delay in conditions of interference, jitter, fluctuations in packet delivery delay, and packet non-delivery.

    Keywords: overlay network, underlay network, IPv6, distributed storage, distributed database, tun interface, distributed data processing system, intelligent agent, group robotics, autonomous robot

  • Intelligent support for adaptive construction of project trajectory

    The article is devoted to the problems of managing the implementation of multi-scenario, multi-stage projects under conditions of uncertainty. The proposed approach is based on representing the project model in the form of a scenario network. The developed fuzzy linguistic model of a project stage is a set of linguistic variables corresponding to the stage indicators and external factors influencing the subsequent implementation of the project. The decisive rules for choosing the arc of transition to the next stage are constructed in the form of fuzzy products, the left parts of which are fuzzy statements regarding the preference of possible options. The constructed decision support procedure is based on the use of the Mamdani fuzzy inference algorithm, which has high interpretability. The proposed approach allows for multi-scenario planning and adaptability of management of the implementation of multi-stage projects.

    Keywords: multi-scenario multi-stage projects, adaptive project management, scenario network, decision support, linguistic variable, fuzzy inference

  • Increasing the stability of staircases in difficult engineering and geological conditions

    The article discusses the issues of stability of pedestrian paths and staircases located on sloped areas and interacting with a complex geological environment. The features of designing construction projects on sloping areas are considered. The reasons for the occurrence of various defects and destruction on the staircase, located on the embankment of Khabarovsk, were investigated. An assessment of the stability of the structure during repair work is given. Measures are proposed to increase the stability of the structure.

    Keywords: staircase, slope, slope stability, stress-strain state, fortifications

  • Development of an operational quality control scheme for installation of sheet metal waterstops

    The article presents an analysis of the requirements for quality control in the current regulatory documentation of the Russian Federation and the experience of developing a scheme of operational quality control (SOQC) for the installation of sheet metal waterstops, obtained on the basis of regulatory and methodological documentation and materials from manufacturers of waterproofing materials: domestic and foreign, and the practice of using polymer and metal waterstops and our own experimental studies. The content of the main information blocks of the SOQC in the practically accepted unification of requirements for quality control in construction is described. Construction defects are indicated when using polymer waterstops for waterproofing technological seams of monolithic structures of civil buildings, which can be avoided if the requirements are met and the work is performed in accordance with the developed SOQC as part of the technological map of the work production project.

    Keywords: scheme of operational quality control, quality in construction, installation tolerance, requirements, sheet metal waterstop

  • Overview of the capabilities and technologies of implementing anti-plagiarism systems

    This article analyzes and reviews modern methods and technologies used in anti-plagiarism systems, with an emphasis on the Russian market. The purpose of considering all of the above is to choose a suitable anti-plagiarism system for integration. The article presents the most popular Russian services for detecting borrowings, their business models, algorithms of operation, as well as a general description of the principles and mechanisms underlying these algorithms. It was determined that the most universal and effective system for finding loans is the service Antiplagiat.ru , since it has the possibility of integration via the API, as well as 34 additional modules that provide the opportunity to adapt the functionality of the system to individual needs.

    Keywords: antiplagiarism, text analysis, text processing algorithms, semantic analysis, stylistic analysis

  • Mathematical modeling of stress-strain state of the Kuznetsovsky tunnel under reconstruction

    The large-scale development of Russia's lands led to the creation of a railroad network. Along with the laying of the railroad, the entire transportation infrastructure, such as bridges, tunnels and overpasses, was erected. Many structures are already more than 100 years old. The structures are deteriorating and approaching the end of their life cycle. It is therefore necessary to reconstruct or dismantle these structures. Due to the increased freight traffic between China, Russia and Western Europe, it is necessary to reconstruct all tunnels on the BAM. This paper presents one of the tunnel reconstruction options and investigates by mathematical modeling the stress-strain state of the system "array-construction" by which the tunnel can be reconstructed.

    Keywords: mathematical modeling, stress-strain state, railway tunnel, reconstruction, finite element method, drilling and blasting, mechanized tunneling, mining machine, displacements, Baikal-Amur Mainline

  • Numerical modeling of the stress-strain state of compressed reinforced concrete pillars reinforced with composite materials

    Currently, a large amount of research is devoted to the use of polymer composite materials applied for increasing the strength and durability of reinforced concrete elements. In compressed reinforced concrete columns, the bearing capacity depends on the eccentricity of the external force application and the corresponding stress-strain state, as well as on the arrangement and quantity of composite materials bonded to the surface of the structure. The choice of the arrangement scheme of composite materials depending on the stress state of the structure is of current interest for researchers. At the same time, studies conducted on centrally compressed elements often have contradictory effects. The main purpose of this study is to perform numerical experiment of a digital model for the centrally compressed concrete column reinforced with composite materials. The calculation results for 3 short columns with different reinforcement schemes are presented. It is shown that the use of composite materials to reinforce structures increases the bearing capacity up to 10%. Based on the study results, recommendations on the optimal schemes of reinforcement with composite clamps of inflexible columns reinforced in the transverse direction are proposed.

    Keywords: reinforced concrete columns, normal sections, finite element modeling, reinforcement with composite materials

  • Mapping urban air pollution using mobile dust meters of the AirExpert Mini series

    Results of field tests of mobile dust meters of the AirExpert series based on optical sensors (OPC-R1 / OPC-N3) at the stationary air monitoring station "Shabolovka" State Environmental Budgetary Institution (GPBU) "Mosekomonitoring", Moscow, equipped with a dust analyzer (TEOM) series 1405 , showed that the measurement accuracy meets the requirements for instruments for measuring the quality of atmospheric air in populated areas. Mapping of atmospheric air pollution in certain areas of the cities of Obninsk, Dubna, St. Petersburg, Kursk, Moscow, Volgograd (2019-2024) was carried out, which made it possible to quickly assess the environmental situation in the study area in real time, thereby detailing the data from stationary monitoring posts.

    Keywords: mobile dust meters, monitoring, reference device, measurement accuracy, pollution mapping, hyperlocal monitoring

  • A neural network model for the identification of pollen grains in a honey micropreparation

    This paper considers the development and training of a neural network model for the identification of the species and quantitative composition of pollen, which will subsequently be used to determine the botanical origin of honey and quantitative calculations of pollen grains contained in a certain mass of honey. The main purpose of the study is to create a model that can effectively distinguish the morphology of pollen grains present in honey, determine their quantitative and qualitative composition, which will improve product quality control, as well as identify its botanical and geographical origin. For this purpose, similar works on pollen classification were analyzed. Pwtorch was chosen as the framework for creating a neural network model, which provides the possibility of detailed configuration of the model. The result of the work is a trained model capable of classifying pollen grains.

    Keywords: neural networks, classification task, pollen classification, convolutional neural networks, PyTorch

  • Disassembly mechanical cleaning of plate heat exchangers

    The article considers the problem of sediment formation, sludge and corrosion on the heat transfer surface during the operation of heat exchange equipment at housing and communal services facilities. A new method of non-selective mechanical cleaning using a water hammer is proposed. The description and principle of operation of this cleaning system at the central heating station of the Ogarev Moscow State University are given. To confirm the effectiveness of the proposed technical solution, the results of thermal and hydraulic tests are presented.

    Keywords: deposits, sludge, corrosion, cleaning, heat exchanger, water hammer, heat transfer

  • Methods and means of forming and evaluating the competencies of specialists in the field of information security based on a multifunctional software and hardware complex

    The article discusses various aspects of the organization of training of specialists in the field of information security on the basis of a cyberpolygon – a multifunctional software and hardware complex. The analysis of the essence of cyberpolygon as a computer learning technology within the framework of the digitalization of education and the formation of students' competencies, for example, digital culture and cyber hygiene, is given. Based on the analysis of the capabilities of the cyberpolygon for the training and retraining of specialists of various profiles, the requirements for the specifics of methods and means of training and assessment of their competencies are formulated. The problems of conceptual design of the educational content of the cyberpolygon, the need for a formalized description of the essence of competencies and their components, fixing cause-and-effect relationships for the scenario design of educational trajectories are discussed. Special attention is paid to the specifics of pedagogical design, the use of active and group approaches to learning, the need for role allocation in solving team tasks. New formal approaches to the conceptual design of the entities of competencies are proposed, taking into account this specificity, methods of automated distribution of participants by roles of educational projects and educational tasks, new conceptual models for assessing competencies based on covering them with suitable competence-oriented tasks. The proposed conceptual models formed the basis of the software architecture of the cyberpolygon information components for the management of educational trajectories and are presented at the level of design artifacts of the logical level of the cyberpolygon management system.

    Keywords: cyberpolygon, information security, cyber hygiene, digitalization of education, digital culture, conceptual design, methods of automated distribution, competency assessment models, design artifacts

  • Development of an adaptive control system for asphalt concrete mixture formulation for Vietnam based on the experiences of Russia

    As of today, in Vietnam, to ensure stability and improve the quality of asphalt concrete, the main focus is on the application of new technologies, materials, or the improvement of design methods. However, despite significant achievements in this area, the issue of automating the processes of asphalt concrete mixture production management remains insufficiently researched and implemented. Based on the experience accumulated in Russia, the authors propose developing a system of adaptive control for the asphalt concrete mixture recipe, which contributes to the stabilization and improvement of production quality. In the article, the authors present the structure of the control system and its algorithms, as well as describe the results of modeling and evaluating the effectiveness of this system. The study shows that the adaptive control system for the asphalt concrete mixture recipe, developed based on the experience from Russia, successfully demonstrates its effectiveness in the conditions of Vietnam.

    Keywords: asphalt concrete, asphalt concrete mix, Marshall stability, control system, formulation, simulation model, modeling, MATLAB, management efficiency