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  • Planning and designing an organization's information system: stages and methods

    Information technologies are used in all spheres of modern society. Databases and document flow in organizations must be clearly organized, streamlined, and the interconnected work of company departments and services must be ensured to collect and process information flows and make effective management decisions. The article reflects the place of the stages of planning and designing information technologies and methods of their development in the algorithm for forming the strategy of an organization's IT project. Approaches to the formation of automated workplaces are shown using the example of the organizational and managerial structure of an enterprise. The services and departments of the organization responsible for planning, accounting, analysis and control of its financial results have been identified, which led to the conclusion about the directions for improving the quality of IT project development.

    Keywords: information system, IT project, planning, design, modeling, automated workstations

  • Minimizing costs when transmitting information over cellular communication channels

    The problem of planning the sending of messages in a cellular network to destinations with known needs is considered. It is assumed that the costs of transmitting information on the one hand are proportional to the transmitted volumes and the cost of transmitting a unit of information over the selected communication channels in cases of exceeding the traffic established by the contract with the mobile operator, and on the other hand are associated with a fixed subscription fee for the use of channels, independent of the volume of information transmitted. An indicator of the quality of the plan in this setting is the total cost of sending the entire planned volume of messages. A procedure for reducing the formulated problem to a linear transport problem is proposed. The accuracy of the solution obtained on the basis of the proposed algorithm is estimated.

    Keywords: single jump function, transport problem, minimum total cost criterion, computational complexity of the algorithm, confidence interval

  • Development of a tool for visualizing data on site user activity

    One of the most important points in increasing the conversion component of a web resource is identifying the most attractive places for the site user. To identify these locations, a site user activity data visualization tool was created that provides a visual representation of each user action on a site page.

    Keywords: heat map, site, oculograph, fixation, priority area

  • A comparison of machine learning libraries for introducing artificial intelligence into CRM system

    This paper analyzes the performance of solving the classification problem using various open-source artificial intelligence and machine learning libraries in the field of marketing and customer relationship management; based on the results of experiments, the best library is selected for the purpose of introducing artificial intelligence into domestic CRM systems based on numerical performance indicators.

    Keywords: artificial intelligence, machine learning, big data, classification, marketing, customer relationship management, import substitution, open source

  • Stress-strain state of a triangular membrane panel under the action of various types of lateral loads

    The article contains the methodology and results of theoretical and experimental studies of the stress-strain state of a conical radial-beam dome with triangular shell elements. The results obtained by various methods are analyzed and compared. The triangular membrane panel is part of the radial beam dome structure and consists of a support frame and a steel membrane in the shape of a triangle. The shape of the triangle forming the membrane panel can be different and depends on the number of ribs in the radial beam dome. The supporting contour is a compressed-bending element of the dome and is made, as a rule, from a rolled steel profile with a channel section. The membrane is made of thin steel sheet and attached to the upper flange of the channel with self-tapping screws or spot welding. To assess the strength and deformability of a steel membrane sheet, its operation under the action of a uniformly distributed snow load, an unevenly distributed snow load and a concentrated installation load was considered. Several options for nonlinear static calculations in various computer systems are shown.

    Keywords: building structures, wooden structures, membrane panel, stress-strain state, radial beam dome, dome, membrane, design, experimental study

  • Analysis of urban planning in terms of the negative impact of traffic flow on the urban environment

    The issues of atmospheric pollution, including noise pollution, are considered. The dependences of the concentration of carbon monoxide at distances from the roadway at different directions and speeds of the wind flow obtained according to MRR-2017 are presented. The influence of motor transport on the condition of the air basin and the health of the urban population is considered. The levels of noise pollution in the main-line territories of Volgograd, as well as the main pollutants in the atmospheric air of the main-line territories, are considered. The dispersion of CO concentration at different wind speeds at different angles of wind direction to the road and traffic noise levels depending on the days of the week, time of day, and traffic flow intensity are considered.

    Keywords: wind flow direction and speed, roadway, atmospheric air, mainline territories, traffic noise levels, carbon monoxide concentration, vehicle fleet, cargo flow

  • Changing the elastic characteristics of the base in depth

    Changes in the elastic characteristics of the soil for a base model that is inhomogeneous in depth are considered. The dependences of the modulus of elasticity of the soil and the coefficient of lateral pressure on the relative depth are obtained.

    Keywords: modulus of elasticity, lateral pressure coefficient, pressure, compression curve

  • The influence of plastic shrinkage on the physical and mechanical properties of concrete during the reconstruction of buildings and structures

    The results of a study of the influence of shrinkage deformations on the basic physical and mechanical properties of concrete are presented depending on various production and technological factors. The research methodology took into account the choice of the period of aging concrete in a dry, hot climate to study the influence of physical processes in concrete on its physical and mechanical properties. The influence of shrinkage deformations on the strength characteristics of concrete was studied. an increase in the intensity of mass transfer processes between concrete and the environment leads to an increase in destructive shrinkage deformations, mainly plastic shrinkage of concrete, which lead to changes in the structure and physical and mechanical properties of mature concrete. The consistency of the concrete mixture also influences the amount of strength reduction. with a greater value of plastic shrinkage of concrete, its compressive and tensile strength in bending decreases. the destructive effect of plastic shrinkage on concrete caused depends on a number of technological factors (consistency of the concrete mixture, w/c, temperature and humidity hardening conditions, etc.).

    Keywords: curing period, mass transfer processes, plastic shrinkage, concrete structure, concrete strength, reconstruction, buildings and structures

  • Calculation of concrete elements in conditions of uneven all-round compression

    The cases of uneven compression of a concrete cylinder in the case of simple loading and comprehensive uneven compression of a spiral-reinforced concrete cylinder under disproportionate loading are considered. The dependences of longitudinal, transverse and volumetric deformations on longitudinal stress are obtained.

    Keywords: longitudinal stress, circumferential stress, longitudinal deformation, circumferential deformation, spiral reinforced concrete strut, shear strain intensity, shear stress intensity

  • Organizational and technological solutions for eliminating cracks in reinforced concrete foundation slabs

    In order to negate the loss of strength, that can lead to collapse of constructions, we should take measures to prevent cracking. Every crack emersion in reinforced concrete indicates that the accumulated stress has been released in this area of the structure. The cause of cracks are internal tensile stresses that can occur due to internal processes in the element and from external loads on the structure. It is possible to eliminate cracks that have already appeared with the help of repair compounds that fill the volume of cracks in various ways. Injection, as one of the solutions, will help to maintain the strength and durability of the structure.

    Keywords: cracking, concrete, reinforced concrete slab, crack, defect, deformation, strength, soil, repair compound, foundation, foundation slab, injection

  • Feasibility study for the selection of optimal attack (intrusion) detection tools for the needs of monitoring centers of the Russian Federation

    The subject of the study is the technical and economic characteristics of attack detection tools that affect the effectiveness of their use for the system for detecting, preventing and eliminating the consequences of computer attacks on critical information infrastructure facilities of the Russian Federation. An analysis of approaches to selecting the best solutions is presented, the result of which formed the basis of the proposed solution. The article contains a study of approaches to solving the problem of feasibility study of choice, formalizing the formulation of the problem and a mathematical model for solving the problem of choosing the optimal attack detection tool for implementing the corresponding tasks. The research methods used include systems analysis, modeling and peer review methods. The purpose of developing the methodology is to increase the level of validity of decision-making on choosing the best of the proposed attack detection tools. The research results presented in the article can be used to carry out a feasibility study of decisions made when choosing attack detection tools for the needs of monitoring centers of the Russian Federation. The proposed methodology for conducting competitive analysis can be used as the basis for conducting appropriate research for each means of the system for detecting, preventing and eliminating the consequences of computer attacks on the information resources of the Russian Federation.

    Keywords: attack detection tools, intrusion detection tools, feasibility study, competitive analysis, information security tools, decision support system, information security system, optimization, integer linear programming

  • Development of compositions of bitumen-mineral open mixtures for the Novoselovsky district of the Krasnoyarsk Territory

    This paper is aimed to present the produced compositions of bitumen- mineral open (BMO) mixtures for the Novoselovsky district of the Krasnoyarsk Territory. The Federal Road M53 runs through the area and in this district in particular it is characterized by steep ascents and descents. To ensure the required adhesion properties of road asphalt concrete pavements with car wheels for thepurpose of traffic safety in the area under study, the construction of rough wearinglayers or toppings from BMO mixtures has been suggested. Compositioncalculations were carried out using local mineral materials and BMO mixtures,after which test samples were prepared in laboratory conditions. It has beenestablished that the developed BMO mixture compositions meet all regulatory requirements. Recommendations are developed for the factory technology ofpreparing bitumen-mineral open mixtures and the design of rough wearing layers.Instructions for technical control during the preparation of BMO mixtures aregiven. The Road Repair and Construction Department of the Novoselovsky districthas already introduced the obtained compositions into the practice of road construction.

    Keywords: bitumen-mineral open mixtures, rough wearing layers, toppings, roads, asphalt concrete, bitumen, crushed stone, sand, compositions, technology

  • The historical stages of the aesthetic interaction of Russian architecture of housing and production

    The article examines the historical stages of the development of architecture in Russia, in order to identify the features of the aesthetic interaction of residential architecture and production. The general historical process of mutual influence, borrowing of features and compositional techniques is investigated. The characteristic features of interaction and their determining factors are revealed. The trends of further development of residential and industrial architecture are predicted.

    Keywords: industrial architecture, residential architecture, architecture of Russia, Soviet industrial architecture, architectural styles, stylistic borrowing in architecture, history of architecture of Russia

  • The originality of the design and touches of history main architectural landmark Republic of Kabardino-Balkaria, symbol of Nalchik - Sosruko, the fire bearer

    The main architectural landmark of the city of Nalchik, the capital of the Kabardino-Balkarian Republic, is the building of the Sosruko complex, distinguished by its unusual architecture and built in the 70s of the 20th century. The authors of the article turned to the symbol of the city because it is 55 years old and is a unique architectural ensemble. Sosruko is a wonderful monument of brutalist architecture that is visible from every corner of the city. This is evidenced by well-deserved awards and prizes for the originality of the design. Thanks to such buildings, which influence the image of the city, the architecture of the native land will not be the same and faceless. In our time, talented builders and architects should raise issues of preserving architectural heritage, and also remember the best works of architects who have made an invaluable contribution to the development of the construction industry of the Republic of Kabardino-Balkaria.

    Keywords: architecture, construction, Kizilovka, Nartiya, Sosruko, Nart epic, ensemble, chairlift route, mountain slope, loose soil rocks

  • Organizational and technological solutions for the restoration of a monolithic reinforced concrete foundation slab located in conditions of high humidity

    Over time reinforced concrete construction tend to lose their strength properties. An important factor in maintaining the integrity of reinforced concrete structures is the compliance of the parameters of the erected structure with its design values and operating conditions. Otherwise, the likelihood of defects such as the formation of cracks in the protective layer and corrosion of reinforcement increases. There are methods for restoring reinforced concrete structures that can return the strength characteristics to the design level or even exceed it.

    Keywords: restoration of the protective layer, repair, inhibitor, adhesion, corrosion, penetrating waterproofing, chemical anchor, foundation, shotcreting