bluuebunny/crossref_metadata_2025 huggingface dataset:
Providing mechanisation of loading and unloading operations in hopper rail stores
Authors: Varlamov Alexander , Varlamova Nelly , Mazko Natalya
Published: August 2023

Grain and fertiliser transportation are the fastest growing segments of the transportation services market, including railway transportation. Presidential Decree No. 204 of 7 May 2018 “On the national goals and strategic objectives for the development of the Russian Federation for the period until 2024” tasked the Russian government with developing a programme of measures to increase the productivity of economic sectors, including the agroindustrial complex. The increase in the productivity of the latter should entail the development of both domestic consumption and the export component, which places an additional burden on rail transport. The aim of the research is to improve loading and unloading operations in bunker-type railway yards by using auxiliary constructions to speed up and facilitate the loading and unloading of rolling stock by bulk cargo. The research is based on the principles of the system approach using methods of mathematical modelling of technical systems, numerical methods of problem solution and rheology engineering methods. The results of the research are resource-saving ways of bulk cargo loading and unloading from containers of various purposes, allowing to increase the degree of their uniform distribution in the container, and to ensure smooth release of material.
Modeling of load-displacement relationships for corrugated cardboard containers
Authors: Kolesnikov Gennady , Zaharov Nikolai
Published: August 2023

This article discusses the nonlinear behavior of the corrugated packaging during compression. The model of this behavior is a load-displacement curve with an ascending branch, a peak point and a descending branch. In some cases, the descending branch shows signs of plastic transition and/or loss of stability of the container walls. The purpose of this work is to predict the transition point of a corrugated container into a plastic (or pseudo-plastic) state. This condition is unacceptable because there are residual deformations that reduce the quality of the container. The article proposes and implements an approach based on the joint application of the well-known equation of the dependence of the load on displacement and the differential fracture criterion. The simulation results are consistent with experiments known from the literature. The conducted research makes a certain contribution to the creation of new tools, the use of which expands the possibilities of analyzing the mechanical behavior of corrugated cardboard containers for the purpose of rational use of resources in accordance with the concept of sustainable development.
Mathematical methods and models of traffic flow management
Authors: Shamlitsky Yaroslav , Popov Anatoly , Morozov Evgeny , Ovsyankin Aleksey
Published: August 2023

An overview of existing mathematical models of traffic flows is presented. Various macroscopic and microscopic mathematical models of traffic flows are considered, which make it possible to calculate the congestion of road transport networks. The basic principles of their application and significant differences between them are analyzed. Based on the considered mathematical models, a model of rebuilding vehicles between traffic lanes is proposed.
Study of the possibilities of using unmanned aerial vehicles in agriculture and for environmental protection
Authors: Grishin Igor , Selivanov Victor , Rudenko Marina , Rudenko Andrei , Kazak Anatoliy
Published: August 2023

It is generally accepted that UAVs - unmanned aerial vehicles, otherwise known as drones, are used only for military purposes. This is a misconception: since the 60s of the last century, Russian and American specialists have been building unmanned UAVs not only for the armies of their countries, but also for peaceful purposes. The purpose of the article is to study the possibilities and progress in the development of drones for civil and needs. In preparing and writing the article, such research methods as general scientific methods of historical and logical, abstract and concrete, analysis and synthesis, comparisons and analogies were used. The main result of the study is the conclusion that unmanned aerial vehicles can be successfully used for civilian purposes, and not just for military purposes. Drones are now actively used for agricultural and environmental purposes. They are called “eco-drones”. They are no different from ordinary ones; the prefix is designed to emphasize their purely peaceful, scientific purpose.
Development of an assistant chat-bot with voice control elements for teaching how to work with the CNC system
Authors: Nezhmetdinov Ramil , Malykh David , Nezhmetdinova Ramilya , Kovalev Ilya
Published: August 2023

The article discusses the principle of building a voice assistant for learning how to work with the “AxiOMA Control” CNC system. Methods for solving the problem of designing voice assistants are compared, including: speech recognition, dialogue mode and speech synthesis mode. Developed own methodology applicable to the learning process. On the basis of the methodology, a block diagram and algorithms for the operation of an intelligent assistant have been developed. A program is proposed for generating images with hints, as well as a set of files for generating sound files describing the operation of the CNC system. Testing was carried out and program changes were made to the project.
Application of artificial intelligence methods in estimation the risk of transporting a patient by road
Authors: Shevtsova Yuliya , Demchuk Dmitry , Poletaikin Aleksey , Demchuk Konstantin
Published: August 2023

The paper proposes an original logical-probabilistic method for calculation of the risk of medical evacuation of tough patients by road transport. A comprehensive estimation of road conditions and risk factors for transporting an intensive care patient, as well as the calculation of a formal quantitative measure of the risk of transportation by the method of Bayesian inference have been considered. An effective instrument for estimating transportation risks for medical decisions support has been developed.
Methods of increasing the resolution of signals in optical systems
Authors: Makhov V.E. , Sytko I.I. , Shirobokov V.V.
Published: August 2023

Optical observation is the most effective way to control the state of various objects. The dynamism of the objects of the observed scene makes it an urgent task to improve the algorithms for obtaining coordinate and non-coordinate information about the observed objects. The issues of increasing the accuracy of measuring the distance and increasing the resolution between the light objects observed by the optical system by the method of double continuous wavelet transformation are considered. It is shown that the use of the second continuous wavelet transform to the curves of the coefficients of the first transform leads to an increase in the maxima of the scalegram and the curves of the coefficients, providing the coordinate sensitivity of the position of the signals by more than two times. The use of different types of wavelets in each continuous wavelet transform of signals gives many options for constructing a processing algorithm and can be used for additional filtering of noise taking into account the characteristics of signals. In this regard, it is proposed to use parallel mathematical models and real signals in a neural network for determining the coordinates of signals and their characteristics, which leads to an increase in accuracy for each type of signal. The indicated approach can be used in systems for multiple signaling from different sources or for combining images in multi-position systems.
Improvement of the methodology for determining unproductive loss of time in the disbandment system
Authors: Butunov Dilmurod , Buriyev Shuhrat , Abdukodirov Sardor , Abdumalikov Islomjon
Published: August 2023

The purpose of the work is to improve the methodology for determining inefficient time losses in the distribution system of the sorting station. Systematic analysis, analytical, graphic modeling, the law of normal distribution and methods for comparing the performance of wagon standing times were used. Unproductive time losses in the disbandment system were determined by the elements of the time spent by wagons at the sorting station. In the sorting station distribution system, the methodology for determining the time of stay and inefficient time losses of transit recyclable cars has been improved using the law of normal distribution. The analysis of unproductive time losses in the receiving and rolling stock of the sorting station by the actual average daily and average monthly values of the elements of unproductive time losses allows not only to purposefully identify methods to reduce the time spent by wagons, but also to carry out an accurate assessment of the work of the station staff, as well as to adjust the norm of the time spent by wagons.
Methodology for selection and efficiency of graphic software packages for technical documents
Authors: Baratov Dilshod , Astanaliev Elmurod
Published: August 2023

The article describes the results of technical documentation automation projects. The effects of graphical representations of technical documentation are presented on the several levels. Performance indicators have been applied to other systems accordingly. The significant achievements of the program increase the efficiency of this system and automated technical documentation is convenient for all users. This system is more reliable, efficient, convenient and faster than others. Software indicators indicate the interdependence of numerous processes and the formation of these systems. Level coefficients are calculated using a calculation formula that generalizes system performance. Software capabilities are created through an improved method.
Online monitoring of the technical condition of energy saturated agricultural equipment using neural networks
Authors: Kataev Yuri , Tishaninov Igor , Gradov Evgeniy , Mordasova Margarita
Published: August 2023

The article presents a technique for continuous monitoring of the technical condition of energy-saturated agricultural machinery (SHT) using digital technologies, aimed at introducing new intelligent methods for diagnosing machines in the agro-industrial complex. It is noted that the main task of the digital monitoring system is to analyze the effective operation of equipment. The proposed neural network can continuously receive data on the technical condition of agricultural machinery in real time, analyzes and structures input values, such as engine speed, hourly fuel consumption, coolant temperature, which depend on the load and operating modes of the machine engine. The advantage of the digital method of monitoring the parameters of the technical condition is its assessment in the process of diagnosing in real time. The method allows to determine not only the cause of engine failure, but also to evaluate the efficiency of complex energy-saturated agricultural machinery in general. The developed architecture of the neural network is capable of analyzing and transmitting data obtained during the diagnostic process to a special server for storing information. The proposed method for continuous monitoring of the technical condition of complex energy-saturated equipment according to controlled parameters, based on the use of neural networks, can be quickly adapted to different brands of equipment when diagnosing.
Method for improving the accuracy of calculating the tropospheric delay in satellite radio navigation using Kalman filtering
Authors: Tryapitsyn Valery , Dubinko Tatyana
Published: August 2023

A method is proposed for improving the accuracy of calculating the tropospheric delay in satellite radio navigation using Kalman filtering with a combination of calculation using one of the standard troposphere models. The accuracy of the method was tested on real measurement data in the absence of information about weather conditions. It is concluded that the method can work in real time. The method was implemented and tested in the navigation receiver used by the Farvater company.
Hardware and software system for monitoring the modes of the finishing operation on automatic machine
Authors: Yudin Semyon , Ostashkov Alexander , Andreev Yuri
Published: August 2023

The prerequisites of the market and competition requires the efficiency of production of industrial enterprises. This requirement can be met by the tools of Industry 4.0. But many enterprises have unique technological equipment without the ability to connect digital solutions such as IIoT and Supervisory Control and Data Acquisition (SCADA). IIoT and SCADA enables monitoring of the equipment condition, which makes it possible to monitor technological process compliance with required modes, as well as the technical state of the equipment. The paper presents the development of software and hardware systems to eliminate this gap. The paper presents the scheme of the hardware and software system for monitoring the finishing machine, which contains sensors for monitoring the technical and technological characteristics of the machine and recording, analysing and visualizing data using the Winnum Platform. The double-acting finishing machine is a special class of equipment that allows to obtain a surface with precision quality. The presented hardware and software system can be used for other finishing machines with a similar design.
Classification methods and models for automatic determination of goods code by foreign economic activity goods nomenclature
Authors: Sevinov J.U. , Khamroev G.R.
Published: August 2023

Classification methods and models for automatic determination of goods code according to the commodity nomenclature of foreign economic activity (CN FEA) are considered. In the classification procedure, the object is reduced to one or more classes based on the results of the comparison to evaluate the proximity and make a conclusion. The relationship between vectors calculated by scalar multiplication was used as a measure of proximity. In order to determine the most informative symbols for classes, linguostatistical methods based on the information about the a priori probability of occurrence of terms and symbols were used. In doing so, macro-average and micro-average methods, which are considered effective in assessing the quality of classification for several classes, were used. Also, on the basis of syntactic and linguostatistical analysis, a generalized scheme of the process of automatic classification of goods in column 31_1 of the goods declaration graph is proposed. This recommended method of automatic identification of the CN FEA code allows participants of foreign economic activity to ease the processes of filling out declarations for goods.
Use of mathematical model of an artificial neural network for current forecasting of tax base of region
Authors: Yakubov Maksadkhan , Turgunov Adilbek , Kamolov Azamat , Jamalova Gulchekhra
Published: August 2023

In article the method, allowing to use possibility of a neural(neuronic) network for forecasting of tax base of region is offered. The given method is suitable for working out of the positive shortterm forecast.
Mathematical modeling of the operating mode of the South Golodnostepsk main channel
Authors: Sherov Anvar
Published: August 2023

The article presents the results of a study of operation and considers the application of mathematical modeling to the movement of water flow in the South Golodnostepsk main channel. A convenient, simple and cheap mathematical apparatus is proposed, which gives sufficiently reliable predictive results for making the right decisions in emergency situations during the operation of the South Golodnostepsk main channel. It is also given to apply recommendations for the numerical calculation of other irrigation channel in the region.
Analysis of the base motion model of industrial robots moving
Authors: Muhamediyeva D. K. , Fozilova M.
Published: August 2023

Development of mathematical models and algorithms for optimal control of the functioning of industrial robots on a movable base to ensure the accuracy of the trajectory of movement and positioning is considered. An equation for the functioning of industrial robots on a movable base in the implementation of a complex spatial operation obtained and, on its basis, a mathematical model of optimal control is developed.
Aerodynamic calculation of wind impact on mobile radar antenna design
Authors: Solomatin D. A. , Shumskaia S.A.
Published: August 2023

In this work, the aerodynamic strength calculation of the radar station was carried out in 37 design cases in which the direction of the wind flow and the position of the antenna panel relative to the vehicle were varied. The vehicle and container were considered exclusively in the aerodynamic calculation for the calculation of air masses. For the most stressed cases, the static calculation was carried out and the critical stresses of the whole structure under study and the antenna panel structure separately were determined.
Determination of the optimal cross-sectional size of a flat plate solar collector
Authors: Kanareykin Alexandr
Published: August 2023

The article is devoted to the determination of thermal stresses in a flat plate solar collector and the calculation of its optimal size. The solution is found when moving to an elliptical coordinate system. The obtained result is useful because by varying the geometric shape of the cross-section, it is possible to reduce the level of thermal stresses that occur, and, consequently, to increase the reliability and durability of the solar collector design.
Determination of the energy efficiency of a flat reflector solar air heating collector with a heat accumulator
Authors: Toshmamatov Bobir , Kodirov Ismoil , Davlonov Khayrulla
Published: August 2023

The article presents an improved scheme and pilot-industrial copy of a flat reflector solar air heating collector with a heat accumulator. The heat balance equation of the flat reflector solar air heating collector with heat accumulator is constructed, and its energy efficiency is based on it. Considering the local climatic and meteorological characteristics of the city of Karshi, its useful performance coefficient was determined based on the experiment conducted on the flat reflector solar air heating collector with a heat accumulator. This designed device is proposed as an active solar heating system for the anaerobic digestion of municipal solid waste based on energy and resource efficiency. As a result of experimental studies, a flat reflector solar air heating collector with a heat accumulator’s high energy efficiency was determined in the heating heat carriers (air up to + 75°C and heat accumulators up to +85°C) on February 24, 2023.
Liquefied petroleum gas: prospects for alternative applications
Authors: Polyaykova Ekaterina
Published: August 2023

This article analyzes the production of natural gas product and its application in the territory of Eastern Siberia and the Far East. In this territory a significant number of hydrocarbon deposits are dispersed, with the current volume of production already formed natural gas reserves for more than 150 years, and further plans to increase the resource base, which is a strategic priority. But promising ways of sales are needed, so the logistical situation in these territories was analyzed. The problems of realization of this resource in the territory due to the difficult logistical situation were revealed. The analysis of the prospective use of liquefied petroleum gas in Russia and the prospects of exporting to other countries. Based on the performed analysis the proposal has been formed on the development of the excessive amount of the gas product in the territory, the proposed solution meets all the requirements and is relevant to the territory. And as to confirm the economic benefits, the effectiveness of the proposed approach to the development of surplus gas production has been assessed, which also confirmed that this solution is relevant for Eastern Siberia and the Far East.
Evolution of ice load prediction tools for hydrotechnical construction
Authors: Sharapov Dmitry
Published: August 2023

The article provides an overview of the historical and contemporary developments in estimating ice loads on marine structures. It first underscores the significance of accurate ice load calculations for the safety and reliability of structures, and subsequently traces the evolution of ice load estimation techniques from past standards to current international standards and guidelines. The article then delves into the limitations of traditional methods for ice load estimation, which rely heavily on empirical data, before discussing the innovative and more precise discrete element method (DEM) for ice load estimation. The article outlines the benefits of using DEM over traditional methods and explores the diverse software options available for modelling ice loads on marine structures, including commercial and open-source alternatives. The article emphasizes the importance of staying up-to-date with the latest advancements in technology and techniques for ice load estimation, highlighting the crucial role that precise and reliable ice load estimation plays in ensuring the safety and dependability of marine structures in extreme environments. Overall, the article provides a comprehensive summary of the evolution of ice load estimation techniques for marine structures, from past norms to the contemporary use of DEM and advanced software packages. It underlines the necessity of continuous research to ensure that marine structures are constructed with the highest safety levels.
Cement quality in thermochemical clinker activation
Authors: Krivoborodov Yury
Published: August 2023

Improving the quality of cement while reducing the energy costs of its production is one of the most important tasks of the cement industry. Cement properties are determined by the hydration activity of clinker minerals. In turn, the activity of clinker minerals is determined by the degree of disorderliness of the crystal cell. The disorder of the crystal cell depends on the chemical composition of minerals, the type and concentration of modifying additives. It also depends on the modes of clinker synthesis, both during firing and cooling. An effective way of activating clinker minerals is intensive firing of the components of the raw mixture. This method can be carried out by thermal activation of calcium oxide, as well as by bilateral introduction in different zones of the rotary kiln of polycomponent waste of chemical and metallurgical industries The composition and morphology of the main mineral of Portland cement clinker, alite, have been studied by methods of physical and chemical analysis. It was found that the crystals being formed are characterized by a nonstoichiometric composition. Their rapid growth is accompanied by intensive introduction of impurity elements into the crystal cell of the mineral. The hydration activity of clinkers of conventional and intensive firing has been determined. An increase in the rate of hydration of intensive firing clinkers has been established, which leads to an increase in the strength characteristics of cement by 7-10 MPa.
A systematic approach to technical inspection of construction projects
Authors: Ekba Sergey , Borovkova Anastasia , Nikolenko Dmitry , Koblyuk Danila
Published: August 2023

This study presents a methodical approach to the procedure of inspection of the technical condition of non-residential public buildings, including architectural monuments. The work considers the peculiarities of the inspection at each stage - the analysis of the initial data, preparation for and preliminary (visual) inspection of the object with the drawing up of the inspection program, conducting a detailed (instrumental) inspection, processing the results and preparing a technical conclusion. As methods of research were used - the method of observation and comparison of actual, design and regulatory parameters, the method of measurement of actual values, methods of nondestructive testing, described used means of measurement and control. Performed visual inspection, analysis of the structural system of the building, photography, drawings of the object. On the basis of the results of visual and instrumental inspection defects and damages typical for the finishing stage were identified. A list and map of defects have been developed. The presented methodological approach can be used at the object-analogues, including architectural monuments and objects of cultural heritage. The causes of defects and damages have been identified, and recommendations for their elimination have been given.
Using penalty function method in identification of elastic fixed stiffness of frame - pile structure
Authors: Nguyen Xuan Bang , Nguyen Duy Duan
Published: August 2023

This paper studies a method to identify the elastic fixed stiffness of the frame structure. The model of the problem is three dimensionals structure, linear elastic deformation, pile - soil link is replaced by elastic fixed with stiffness. The problem will be solved by the penalty function method - the minimum of the objective function (which is the total squared error between the measured value and the calculated values particular) - combined with the finite element method. The numerical calculations show that the model, algorithm and calculation program are reliable. The program can be used to identify the elastic fixed stiffness of the frame structure in three dimensions, serving to determine the actual working state of the structure, to propose solutions for reinforcement, repairing, improving bearing capacity, prolonging the life of the structure.
Study of the macrostructure of refractory adhesive compositions fired at high temperatures objects and methods
Authors: Shamadinova N.E. , Eshburiev T.N. , Jalilov A. , Matkarimova N.S. , Atamuratova M.Sh.
Published: August 2023

The results of petrographic studies of structure formation and the formation of the phase composition of the developed aluminophosphate refractory adhesive compositions Al2O3*-Cr2O3-H3PO4 at different temperatures with the addition of clay components are presented. It has been established that polarizing cristobalite tridymite and AlPO4 crystals of rhombic modification are observed in the phase composition of the composition of fired samples, which are thermally stable compounds that provide high-performance properties when gluing refractory materials.
Digitalization of technological and design decisions making processes in modern construction
Authors: Ashikhmin Oleg , Shestakova Alena
Published: August 2023

The results of the study can expand the implementation field of the “decisions tree” method. This method can be used in the design decision making processes and technological equipment options when choosing construction equipment for the production of earthwork. The study was carried out on the example of the “Voznesensky” Architectural Ensemble? in Tyumen, hereinafter “Voznesensky AE”. Following goals were achieved: options for a traditional approach to determining the need for construction equipment were considered; models and methods of making managerial decisions were analyzed; the method of “decisions tree” was studied, advantages and disadvantages were identified. The “decisions tree” method ia successfully applied in a digital experiment and recommended for real implementation in the development of an algorithm for making design decisions and when choosing options for mechanizing the production of excavation work using the Deductor Academic Studio program at the construction of a real facility. Currently, there are no cases of direct application of the «decision tree» method in the management of projects in the Russian construction industry. There are no published research results to introduce the «decision tree» method in the processes of design and production decisions.
Reconstruction of the volume-planning parameters of schools using biophilic principles and techniques
Authors: Kupriyanov V.N. , Mirsayapov I.T. , Khabibulina A.G. , Khabibulina A.M. , Biktemirova E.I.
Published: August 2023

The aim of the study is to approve the method of evaluation of school buildings, based on the use of space-planning parameters of objects, taking into account the principles and techniques of biophilic architecture. Objectives of the study: to evaluate typical projects of schools of the Soviet period, taking into account modern standards of ecological construction, requirements of bioclimatic comfort and biophilic principles, using space-planning parameters specified in the design architectural and construction drawings; consider this method as the primary step for the diagnosis of potential biophilic properties of buildings, visual connection with the environment; make a critical analysis and provide recommendations for the use of this method of assessment. The study of domestic and foreign experience in creating biophilic learning spaces showed that preliminary analysis of volumetric and planning parameters of school buildings, can be used to diagnose the potential biophilic properties of objects, such as the efficiency of daylighting, natural ventilation, visual connection with the outside environment. The study critically analyzes the plans, facades, and cuts of typical Soviet school projects from the 1960s-1970s based on contemporary building certification standards and principles of bioclimatic, biophilic architecture. The significance of the obtained results for architects and designers is that the proposed method makes it possible to give a quick initial assessment of the potential biophilic properties of an object during the development of school reconstruction projects on the basis of the volume-planning parameters of buildings specified in the project documentation without a full-scale survey.
Starch oxidation and study of changing its properties for use as an adhesive component for the production of corrugated cardboard
Authors: Tillayeva Dildora , Sharipov Muzafar
Published: August 2023

It is known that for sizing papers and cardboards, starch is required, which has a lower viscosity compared to natural, increased stability and increased binding capacity. This is necessary so that the starch dispersions in the size press have a sufficiently high concentration, are process able and remain stable. The choice of an oxidizing agent and the conditions for the method of oxidizing corn starch are theoretically substantiated. The mechanism and regularities of the process of starch oxidation have been studied. Changes in the gel-forming and sorption properties of starch during its oxidation were revealed. The intervals of quantitative parameters of the components for the modification process are determined. The dependence of the surface tension of starch pastes on its concentration in solution has been obtained.
Matching the output voltage level of the energy recovery device and the voltage of the on-board network
Authors: Sarbaev V.I. , Garmash Y.V. , Blinnikova L.G.
Published: August 2023

This article deals with the possibilities of applying magnetic dampers for damping of mechanical vibrations, both of car body and of radio-electronic equipment. An electronic device is proposed to adapt the output voltage of the energy recovery device to the voltage of the car’s onboard network or to the power supply voltage of the radio-electronic equipment. In addition, the developed device can be used in conjunction with an energy recovery system for vehicle braking.
Cognitive analysis of sustainable regional economic growth factors
Authors: Petrova Elena , Usacheva Irina
Published: August 2023

In modern conditions of digital transformation of the economy, the task of ensuring sustainable, balanced growth of the region as a complex socio-economic system acquires a special role. One of the important areas of study of socio-economic systems is the analysis of patterns and trends in their development. The region should be considered as a complex system, consisting of a set of its subsystems and elements with many links. In order to solve this problem, we propose to use a cognitive approach to the study of the factors of sustainable economic growth of the region. This approach allows us to develop formalized models of interaction between various factors of complex, weakly structured systems. The aim of this research is to carry out a cognitive analysis of interregional and external factors of economic development, which allows highlighting their spatial location and the threats and risks of regional growth. Four resultant indicators of sustainable economic growth in the region are identified, and factor attributes are grouped into economic, social, demographic, and digital transformation indicators. The target factors of the cognitive map are defined, the connectivity analysis is carried out and the process of perturbation propagation in the graph is studied, which allows identifying the reserves for achieving sustainable economic growth in the region. The results of the study are explained in the cognitive maps of the interconnectedness of the region’s growth factors.
Inclusive higher education as a factor of socio-psychological adaptation of special students
Authors: Kokhan Sergei , Vlasava Sviatlana , Eshiev Asylbek , Kozhomberdieva Kanykey , Zhakypova Naar
Published: August 2023

Introduction. The current practice of introducing inclusive education in educational institutions shows certain problems, despite the regulatory documents and algorithms that position the widespread development of this direction in Russia. The process of adaptation of students with special needs in the university environment is complex and requires constant monitoring for its improvement, which actualizes this research. Task setting. In order to study and analyze the social adaptation of students with disabilities to successful education at the university, the authors developed a questionnaire and conducted a survey of project participants using Google Forms. The results obtained by groups were statistically analyzed. Methods and materials of the study. The study involved 53 students of the 2nd-4th year of full-time education of TBGU. The experimental group included 28 students with special needs and 25 people without disabilities made up the control group. The mean age of the project participants was 22.88±2.03 years. The survey was conducted using methods accessible to the respondents according to the plan approved by the ethical committee of the university. Results and Conclusions. Despite the existing differences in the studied groups, a significant number of respondents noted their satisfaction with the created conditions for inclusive education in TBSU. Identified difficulties of adaptation and barriers can be considered as aspects for improving the inclusive environment of the university.
Digital realities of the economic horizons in the construction industry
Authors: Khonchev Mikhail , Starostina Aitalina , Esenov Maxim , Goloshchapova Ludmila
Published: August 2023

This article examines the impact of digital technologies on the development of the construction industry. The author examines what opportunities open up through the use of digital tools, such as Building Information Modeling (BIM), virtual and augmented reality, drones and others. The article provides specific examples of the use of these technologies in construction, as well as describes the advantages and disadvantages of their use. The article shows that digital technologies have great potential to improve productivity and quality in construction, and their use will continue to grow in the coming years. One of the key points highlighted in the article is the role of BIM technologies in modern construction. The author notes that BIM allows you to create accurate digital models of buildings and infrastructure facilities, which simplifies the design, construction and management of facilities. Thanks to BIM technologies, specialists can conduct virtual modelling of objects and check the operability of systems before the start of construction, which reduces the cost of errors and increases the efficiency of the process. The author notes that augmented and virtual reality are also becoming increasingly popular in construction. At the end of the article, the author summarizes the results and gives recommendations so that the construction industry can maximize the potential of digital technologies. The author advises the use of digital technologies not only in design, but also at the stages of construction and management of facilities. The article demonstrates that digital technologies are an important tool for improving productivity, reducing costs and improving the quality of work in construction. Their use will continue to grow in the coming years.
Impact of the dividend policy of joint-stock companies on the regulation of the stock price in the Republic of Uzbekistan
Authors: Temirov Abdulaziz , Urinov Bobur , Zakirova Guliston , Yuldashova Gavhar
Published: August 2023

The article reveals the mechanism of market pricing shares, provides methods of calculating market valueshares, illustrates dependence of share formation prices on the chosen dividend policy. The proposals on the calculation of the capital cost, improvement of dividend policy, disclosure of information by joint-stock companies in terms of dividends are given
The relationship between celebrity endorsement and purchase decisions
Authors: Al-Mutairi Afnan , Siddiqui Kamran
Published: August 2023

This paper aims to study the impact of celebrity endorsements on purchase intention in Saudi Arabia. Questionnaire was developed using three independent variables Celebrity’s Attractiveness, Expertise Trustworthiness and one dependent variable i.e., customer’s Purchase Intensions. Data was collected using online questionnaire tool i.e., UDQuest. 117 respondents participated in the survey. Survey results shows that Celebrity’s attractiveness plays a pivotal role in shaping customer’s purchase intentions.
Features of the mechanism for implementing sustainable development through the green economy
Authors: Abramova Marina , Varzin Vasiliy , Niyazbekova Shakizada , Isaeva Ekaterina , Chertova Dana
Published: August 2023

Economic development is accompanied by a continuous increase in production and consumption. On the one hand, the rapid development of production contributes to the welfare of the population, and on the other – has a negative impact on the environment. Every year, people destroy more than 11 million hectares of forest, emit 20 billion tons of carbon dioxide into the atmosphere, and produce more than 300 million tons of plastic mass. If this process is not interfered with, humanity will face a global environmental catastrophe. The new economic concept was developed in order to smooth out the cantradictions between economic growth and the conservation of natural resources. It is based on three axioms. Many countries have seriously taken care of environmental problems and have developed a set of economic measures to combat the negative anthropogenic impact. The pioneers in this field are the states of Western Europe, South Korea, the USA, China, as well as Russia
Analysis of the composition, structure and dynamics of profit and loss statement
Authors: Khajimuratov Nizomjon , Ismoilova Mahbuba , Sayfullayev Mehroj
Published: August 2023

In this paper we used companies profit and loss statements’ information. We analyzed composition, structure and dynamics of profit and loss statement and learnt influence of operational, financial, investment incomes and expenses to profit and loss statement then made conclusion that how to improve efficiency of companies.
Evaluation of the influence geometric parameters of a cylindrical specimen for tensile adhesion testing of thermally sprayed coating
Authors: Zayatzev Andrey , Lukianova Albina , Demoretsky Dmitry , Alexandrova Yulia
Published: August 2023

The problem of calculating the required adhesion strength and the accuracy of measuring the adhesive/cohesive strength of thermally sprayed coatings (thermal barrier, electrically insulating, irradiation) on a cylindrical test specimen is of practical interest from the point of view of improving the reliability of highly loaded parts of internal combustion engines of agricultural machines, various parts of the aerospace and nuclear industries. There have been carried out a set of studies on the application in practice of standard test method for assessing adhesion or cohesion strength of electrically insulation plasma sprayed coating Al2O3 on standard and elongated specimens with a diameter of 25 mm in accordance with standards ASTM C633-13, GOST 9.304-87. In order to assess the influence of witness specimen’s geometry at common coating adhesion, there were selected 6 types of cylindrical specimens. A finite-element stress analysis was used to evaluate stress-strain state of the two bonded cylindrical specimens of the same geometry with coating by tensile testing. The uniformity of stress distribution at the interface coating/substrate was found for three elongated specimens. Compared to standard tensile testing of a cylindrical specimen, the applied significance of the conducted studies that it is possibility to obtain more accurate experimental data of bond strength. There is also needed further research in the field of determining the most optimal geometry of the witness specimen for evaluating the tensile adhesion strength of thermal spray coating.
Large-scale transport projects: tools to transform qualitative into quantitative assessment
Authors: Kibalov Evgeny , Pyataev Maksim
Published: August 2023

Decision-making tools for large-scale transport projects are the subject of research in this paper. The purpose of this paper is to improve decision-making techniques for loosely structured problems and to demonstrate the results of experimental calculations on the example of a large-scale transport project. The methods of the research are the methods of system analysis: expert technologies that are being improved in the course of the research; method of scenarios; for construction of problem hierarchy, goal tree; criteria priorities; and criteria of decision-making theory (Wald, Savage, Hurwicz, Bayes, Laplace). The study has established three criteria for assessing the effectiveness of the Barentskomur railway project (the project of the railway connecting Indiga port and Surgut); it has revealed the priorities of the criteria for assessing the effectiveness of the project in three different scenarios of external environment development: optimistic, pessimistic, and the most probable in a quantitative scale. The survey of experts was carried out. A new approach to the significance of the general goal of the project has been proposed. The quantitative estimations of significance of two different alternatives of realization of the project in various scenarios are received. The results have led to the conclusion that the Barentskomur 2 project should be implemented, because there is a high degree of uncertainty in the world, and in this case the most “cautious” Wald criterion should be used. Not only do we need to con-sider scenarios and immerse alternatives in those scenarios, but in the case of large-scale transport projects we also need to consider the impact that the project has on the scenario, due to its scale.
Food security of Russia in modern condition
Authors: Baranova Irina , Borisova Lyudmila
Published: August 2023

The problem of food security is global in the context of sanctions and conflicts. The study is devoted to the assessment of the level of food security of the Russian Federation. The paper assesses the current level of food security in Russia based on the analysis of trends in the development of the agro-industrial complex, and also identifies threats and challenges to Russia’s food security at the present stage. The research is based on statistical data provided by the Ministry of Agriculture of Russia, as well as analysis methods including computational and constructive, monographic, economic and statistical, comparative and system analysis, synthesis, etc. The article suggests measures to strengthen Russia’s food security, taking into account the unpredictable development of the Russian economy. The results of the work make it possible to conclude that, despite the problems, the Russian agro-industrial complex successfully provides food to the population of the country and continues to gain momentum in the export of products. Russian scientists clarify the concept of innovation, the latest threats, problems of food security in individual countries and regions. The situation is aggravated by such factors as the imposition of sanctions on persons related to agricultural assets, the impact of sanctions on transportation and finance, and other restrictions, bikies. The Ukrainian crisis and Western restrictions against Russia are damaging food stability at both regional and country-wide, global levels.
Trends of transport logistics in construction in the conditions of digitalization
Authors: Vasilyeva Elena , Bolshakov Ruslan , Zorin Konstantin
Published: August 2023

The top trends, peculiar to transport logistics in the construction companies activity, are pointed out in the article. According to the results of the analysis that was carried out, nowadays digitalization is the main subject in logistics. In particular, paperless registration of cargo transportation, robotization during freight processing, the use of unmanned vehicles for transportation, and the introduction of obligatory marking for separate types of commodities are revealed. The authors find out the logical communication between the development of electronic commerce and the adaptation of logistics for it, and conclude, that only the complex logistics will be able to conform to modern requirements. At the same, some factors which slow down the digitalization of the transport-and-logistic sphere in Russia are revealed. This will also make it difficult for the companies to cope with the peak loads by their capacities. So, logistic outsourcing can become the solution to this problem. The results of the analysis as well as the conclusions, drawn by the authors, can be useful for the further development of the transport-and-logistic complex. In turn, the transport logistics systems act as the major resource, which allows to plan and carry out construction works, to finish them in the shortest terms, to increase the activity efficiency and product competitiveness.
Frequency control of asynchronous motor for an irrigation pump of machine irrigation systems
Authors: Isakov Abdusaid , Shavazov Abdulatif , Ismailova Zuxra , Rakhmankulova Barna
Published: August 2023

The working state of freguency-operated asinchronous motor of irrigation pump in the closed system with feedback by velocity are considered. The system issue coefficient, provided a constancy of given value, loading coefficient of motor for voltage control pro rata control freguency are determined. Let us consider the static mode of operation of a frequency-controlled AM in a closed system with speed feedback. A decrease in the rotation speed in irrigation pumps to regulate their productivity is possible up to a certain minimum value, at which the pump head (H) becomes equal to the static head (Hst). The pump output (Q) then drops to zero. The value “k” has been determined, which ensures the constancy of the AM overload factor over the entire range of control frequency change in a closed-loop frequency control system with feedback on the engine speed.