bluuebunny/crossref_metadata_2025 huggingface dataset:
Contribution of weather conditions and anthropogenic activity to the variation of grain yields in the North-West of Russia
Authors: Shpanev Alexander , Smuk Vasily
Published: October 2023

Current trends in climate change associated with the growth of heat supply contribute to the growth of bioclimatic potential and the increase in productivity of grain crops in the North-West of Russia. In such conditions, research is relevant aimed at clarifying the contribution of weather conditions and anthropogenic activity in the formation of the crop. The research was conducted on the crops of winter rye, spring barley, winter wheat, and spring wheat of the experimental landfill of the Menkovsky branch of the Agrophysical Research Institute. We studied various factors of anthropogenic activity, such as the level of mineral or nitrogen nutrition, an integrated plant protection system, seeding rates, and the size of seed material. Variance analysis was used in statistical processing. According to the results obtained, weather conditions were the most significant factor of productivity for winter cereals, and mineral nutrition was crucial for spring crops. The integrated protection system was less important than both the weather conditions of the growing season and the background of mineral nutrition of cultivated plants. This factor appeared to be the least significant for winter rye, which often has a favorable phytosanitary situation. The novelty of the data obtained lies in determining the predominant value in varying the yield of nitrogen fertilizers and herbicide treatment for spring wheat. A little less critical were the seeding rate and the size of the seed material.
Effect of arc element diameter on fine particle collection efficiency of the separator
Authors: Vu Linh Nguyen , Abdullina Azalia , Khamitova Dinara , Kuznetsov Maxim , Vakhitov Marsel
Published: October 2023

Clean gas without suspended particles is an essential factor for many industries. The paper is concerned with the design of a separation device with rows of the arc elements, in which a wave-like flow pattern is observed. The separation of solid particles from the gas occurs due to inertial and centrifugal forces. A three-dimensional model of the device and its operating principles are presented. The aim of the work is to numerically study the effect of the size of the arc elements of the separation device on the efficiency of particle collection. In the course of the simulation, the diameter of the arc elements varied from 25 to 50 mm. The exit to the stationary solution was estimated by the pressure drop of the separation device. It was found that about 870 iterations were needed. Results have shown that the diameter of the arc elements, at which the maximum efficiency of collecting particles from gas-solid flow occurs, is 40 mm. The separation efficiency of the device with a diameter of the arc elements of 25, 40, and 50 mm averages 81.1, 90.1, and 86.5%, respectively, at an inlet gas velocity of 0.5 to 5.0 m/s. The pressure loss in the separation device ranged from 12.6 to 1924.1 Pa at a gas velocity of 0.5 to 5.0 m/s. It is concluded that it is important to use a separation device to collect fine particles at a dusty gas velocity of less than 3 m/s because its pressure drop is significantly lower compared with other air separators.
Study of the intake system of automotive tractor internal combustion engines with variable parameters
Authors: Khaliullin Farit , Yakunin Andrey , Khaliullina Zulfiya , Pikmullin Gennady , Galiaskarov Ildar
Published: October 2023

Increasing the effective performance of automotive tractor engines is primarily associated with the intensification of the working process parameters. One of the options for solving this problem is to improve the cylinder filling parameters, which will allow to increase the engine power and torque. In addition to mechanical and gas turbine supercharging, the little-studied resonant supercharging of the engine is of interest. In this case, by selecting the parameters of the inlet path of the engine, it is possible to achieve a significant increase in pressure in the zone of the inlet valve opening without expenditure of useful energy, using only the kinetic energy of the gases of the inlet path. The paper proposes a method to calculate the geometric parameters of the intake tract using a one-dimensional model of gas flow. The results obtained from the numerical investigations give good convergence. The article can be useful for masters, graduate students, and engineering and technical workers involved in the design of internal combustion engines.
Soil fertility in agriculture: Main tasks
Authors: Ibragimov Odiljon , Domuladjanov Ibragimjon , Domuladjonova Shahlo
Published: October 2023

Today, the problem of soil degradation is developing in the Fergana region of Uzbekistan. Improving the quality and productivity of the soil is an urgent task for specialists in the field. In the article, the necessary information for increasing soil fertility and working with the soil of farmers and peasant farms operating in the region was provided. Experimental studies - experiments were conducted in field conditions. They consisted of 8 options and were implemented according to the 4 return system. Various aspects of soil fertility related to the amount of soil and humus in it were considered. Soil is fertile only when there is enough humus, soils with low humus are biologically dead and have low fertility. In our conditions, scientific studies have shown that the amount of humus in the soil is at least 1.5-2%. Analyzes were conducted to determine the mechanical composition of the soils of the experimental area. It was found that there is 27.6 mg/kg of nitrate nitrogen in the arable layer (0-30 cm) and 23.4 mg/kg in the bottom (30-50 cm). The lower soil layers of 70-150 cm are poorly supplied with humus and nutrients. Depending on the state of reclamation, the amount of soluble salts in the water is moderately sulfate-saline, the content is 0.46-0.78%, and the level of underground water is 1.6-2.0 meters. Experiments on replenishment of nutrients from crops in cultivated fields, mainly due to organic fertilizers, at least 10-15 tons of organic fertilizers per year in the amount of 50-70%, soilless waste, composts, phosphorus and potash fertilizers showed the need to use gites. Strict observance of regional ploughing and fertilization according to agrochemical cartograms depending on the type of soil crops. However, as a result of non-compliance with crop rotation, unscientific use of organic mineral fertilizers and resource-saving technologies, the amount of humus on irrigated lands decreased by 50%. To improve soil productivity, the article gives recommendations for improving soil quality.
Results of theoretical research of curved pile drums for cleaning cotton from small impurities
Authors: Djuraev Anvar , Yuldashev Kozimjon , Daliev Shukhratjon , Nizomov Temurbek
Published: October 2023

The article presents the theoretical basis for determining the radius of the curved surface based on the condition of balancing a piece of cotton from the surface of curved piles in cleaning cotton with curved drums from small impurities. Based on the numerical solution, graphs of the dependence of pile curvature radius on drum parameters were obtained, and optimal values of parameters were recommended based on the analysisю Keywords: cleaner, fine dirt, curved pile, angular velocity, friction, mass, displacement, reaction, air resistance, parameter, cleaning effect.
The influence of fungicides on the growth, development and productivity of soybean
Authors: Vyborova Tatyana , Bezmutko Svetlana
Published: October 2023

The paper presents the results of a two-year experiment on fungicide Deposit, muE (1.0 l/t and 1.2 l/t) and its combinations with fungicide Optimo, EC (0.5 l/ha). The experiment was conducted in the south of the Russian Far East in 2021-2022. The first step was a phytophathological inspection of the seeds treated with the fungicide in the laboratory conditions. Deposit was noted to have an antibacterial and antifungal effect. A rhizotron was used for further experimental work to observe the growth and development of soybean plants. It was established that Deposit did not have a negative effect on the crop and facilitated a slight increase in plant weight. The last step of the research was field plot experiments aimed at studying the efficacy of the fungicides against root rot and leaf and stalk diseases of soybean. Deposit was observed to inhibit root rots damaging the crop. At the stage BBCH 62, the fungicide decreased the intensity of infection progression by 11.0% (1.0 l/t) and 15.6% (1.2 l/t). Deposit and Optimo had a high antipathogenic activity against leaf and stalk diseases of soybean. It was established that the fungicides and their combinations were effective against Septoria blight (22.1-35.5%), Cercospora leaf blight (29.7-70.4%), and Ascochyta blight (20.4-58.4%). Additionally, they increased the thousand kernel weight (TKW) and soybean yield.
The role of internet resources in learning foreign languages at the faculty of electrical engineering
Authors: Khazhgaliyeva Gulnar , Kassymova Akmaral , Medeshov Aigul
Published: October 2023

Internet resources play an important role in modern education, including the study of foreign languages at the faculty of electrical engineering. Nowadays new information technologies are intensively introduced into all spheres of our life, including the educational process. In this regard we need to develop methods for using computer information technologies in foreign language learning. The use of Internet resources in foreign language lessons is a relevant direction in the methodology that requires new approaches and non-standard solutions. The aim of the study was to investigate the effectiveness of using internet resources in learning foreign languages at the university educational process. More and more language departments, institutes and schools are now using virtual environments to promote and support language learning. The use of a computer and Internet resources in English classes makes it possible to individualize learning as much as possible, make the learning process creative; increases motivation and interest in learning a foreign language and contributes to the effective formation of foreign language speech competence. The article also touches upon the theoretical substantiation of the application of internet resources in the educational context. Furthermore, the students’ opinions are presented on how internet resources are convenient in learning foreign languages. The survey involved 147 students of Zhangir khan West Kazakhstan Agrarian and technical University. It was revealed that the integration of online communication tools has positive effects on the formation and development of speaking and writing skills in English.
Characteristics of fire protection systems examination during special technical specifications’ approval phase
Authors: Vytovtov A.V. , Kalach A.V. , Sysoeva T.P. , Evloev Z.B. , Ageev P.M.
Published: October 2023

Emergency simulation during the design phase of a protection object must be carried out in the absence of design standards and the development of special technical specifications. The development of these solutions requires a comprehensive study of the protection object and high competence of the executor in fire safety issues. There is a recommendation for territorial normative and technical councils to carry out studies with specialists of profile educational and research institutions of the Ministry of Emergency Situations of Russia when considering special technical conditions. This activity can be performed by including these persons in the commission or preparing a separate opinion on a commercial basis. The study presents the peculiarities of modeling the limiting heat flux density in a fire and the development of compensating measures, taking into account the comments of specialists of an educational organization. A shopping mall for which there are no design standards for the selection of fire barriers is considered. Seven scenarios of emergency situation development related to fires were studied, and typical violations of these works were revealed. The developers' attention is drawn to the necessity of calculating the fire risk and taking into account the evacuation time of people.
Spatial geometrical calibration of optoelectronic devices
Authors: Zhukov Aleksandr , Kartsan Igor , Belov Stanislav , Prokhorov Mikhail , Gedzyun Victor , Nersesov Boris
Published: October 2023

Space equipment experiences high thermal and mechanical loads that cause deformation of its structures, as well as elements of optical systems and radiation receivers, which can lead to changes in the mutual position of the optoelectronic device elements, disturbing its alignment, degrading image quality and increasing pointing errors. This paper presents a method of spatial geometric calibration that does not require additional equipment and investigates the dependence of the identification results on the viewing angle. The proposed methodology of optoelectronic instrument calibration is intended to improve efficiency, reliability and survivability of automated spacecrafts during their operation.
The use of ionistors instead of batteries in solar energy
Authors: Kanareykin Alexandr
Published: October 2023

Today, the use of solar panels is becoming widely used. At the same time, accumulators act as accumulators of the generated solar energy. The article suggests using an ionistor as a storage option. Unlike a battery, the ionistor is most effectively charged not with a constant voltage, but with a current, and with the maximum, i.e. with everything that is only able to give the source. For an energy source, a discharged ionistor is a short-circuited load. Just solar cells can operate at zero resistance, which means they are able to charge the ionistor from scratch. The analysis of the problem of using this method is carried out. The article provides connection diagrams, as well as formulas for calculating charging characteristics.
Calculation of the temperature field of a hollow isotropic elliptical body
Authors: Kanareykin Alexandr
Published: October 2023

In this paper, the problem of heat transfer is solved for a hollow elliptical cylinder, taking into account the asymmetry of heat transfer on surfaces. In this case, the boundary conditions are boundary conditions of the first and third kind. In this paper, a solution is given for the distribution of the temperature field in a field with an elliptical cross-section under boundary conditions of the third kind. The solution is obtained by considering equidistant surfaces.
Features of the interaction of stationary oscillating charges
Authors: Glushchenko Aleksandr , Glushchenko Aleksandra , Glushchenko Vladislava
Published: October 2023

Systems of stationary oscillators determine the structure of a large number of natural materials by the model of many physical processes. In particular, they are the main physical model of the energy transfer mechanism in communication lines and power transmission systems. The interaction of oscillators usually leads to a change in their mode of oscillation, in particular, to synchronization of oscillations. In the present work, the possibilities of another effect of the interaction of oscillators are considered, which, at a stable frequency of oscillations of each of the system of coherent oscillators, leads to their mutual displacement to the points of stable equilibrium. It has been established that the violation of the coherence of the radiation of oscillators leads to the motion of both individual oscillators and a system of oscillators. Conditions for the equilibrium state of a system of oscillators are obtained.
Heat transfer from a constant heat source to the plate surface: An analytical solution
Authors: Kucheva N.A.
Published: October 2023

This paper proposes an analytical solution to the thermoelasticity problem for a plate heated by a source with a constant heat input on one surface. Numerous comparisons were made between the results obtained on the basis of the analytical solution and the numerical one. When comparing the analytical and numerical solutions, it was shown that the advantage of the analytical solution is that it makes it possible to determine the greatest stress values over the entire heating time range, while using the numerical method it is necessary to perform a large number of calculations at fixed time values. However, the finite-element method allows for determining stresses in areas of the plate that are far from its centre, where the analytical solution proves to be unfair. Key words: , , , .
Provision of the required performance of technological processes on the basis of iterative directed enumeration
Authors: Evstafiev V.V. , Rudenko N.V.
Published: October 2023

This article considers the problem to optimize technological processes via optimization of the material flows distribution. It demonstrates the possibility to solve the problem of optimizing the spatial forms of the material flows movement while eliminating several mutually influencing bottlenecks. It is shown that the unloading of the bottlenecks should be performed proportionally to their workload. The work proposes the procedures of iterative directed enumeration, which allows to minimize the cost of changing the values of the route matrix while ensuring the required performance. The simulation results prove the possibility to use coefficients that take into account the proportion of the bottleneck workloads in the iterative method of directed enumeration to obtain a gain in performance cost. The efficiency and practical significance of the scientific and methodological apparatus proposed in the work is confirmed by a methodological example.
A promising direction for improving the environmental situation at the Aral Sea
Authors: Radjabov Masnur , Tadjiev Anvar , Yavkachev Davronbek , Kalandarov Daniyor , Otanazarov Denis , Xudayberganov Xudaybergan , Ibragimova Nigora
Published: October 2023

The Aral Sea, which was unique, beautiful and one of the largest closed water bodies in the world, almost within the life of one generation was on the verge of complete extinction, which turned into an unprecedented disaster and irreparable damage to the livelihoods of the population living here, the ecosystem and biodiversity of the Aral Sea region. The article presents the results of many years of experiments on the cultivation of aquatic plants (Azolla caroliniana) in environmentally unfavorable conditions of drainage systems. The results of the analysis of drainage water before and after the cultivation of the above plants are presented. The possibility of using the program "Google Earth Pro" for such studies is considered.
Morphometric characteristics of the Krasnyj Klyuch lake Complex (Republic of Bashkortostan, Russia)
Authors: Astashin Andrej , Badin Mihail , Vatina Ol'ga , Podkovyrina Valeriya , Il'ichyova Elena
Published: October 2023

The article presents the results of researching the morphometric features of the Krasnyj Klyuch lake complex, located on the Ufa Plateau in the Republic of Bashkortostan on the left bank of the Ufa River. According to available data, the largest karst spring in Russia and the second in Europe in discharge of spring wells at the bottom of the lake complex, which makes the task of researching the morphometric characteristics of the lake complex itself an important step towards researching the unique spring. To date, detailed data, reflecting the features of the relief of the lake bottom have not been available. During the research, a bathymetric survey of the lake complex was carried out from the board of a boat, using an echo sounder, combined with a navigator. The results of field research were processed using the geoinformation program QGIS, a digital model of the relief of the lake basin was created and its main morphometric characteristics were calculated. The results of the researchhave both scientific significance, allowing to detail knowledge about the morphometric characteristics of the unique lake complex Krasnyj Klyuch, and applied – being the center of gravity of recreants, the lake complex Krasnyj Klyuch requires a detailed research of morphometric parameters in order to effectively organize recreation.
Monitoring of vegetation in the coastal zone of Lake Vshivoe
Authors: Seliverstova Ekaterina , Volkova Valentina
Published: October 2023

The article presents the results of the current state of flora of the coastal zone of Vshivoe Lake. This is a natural drainless water body at the watershed of the Grachevka and Egorlyk rivers. The composition and structure of plant biodiversity were identified and GPS coordinates for rare and endangered plant species were established. In the course of expeditionary studies of the coastal zone 30 m wide, we observed the disappearance of the water mirror and the increase of steppe vegetation species, the appearance of trees, shrubs. Throughout the entire coastline in the association Phragmites australis + Typha latifolia with a dense projective coverage of 81 to 98% grows 125 species of higher vascular plants belonging to 37 families and 95 genera. The species composition of coastal-water vegetation in 2022, compared to 2014, has decreased by one species, the species composition has changed in favour of weeds, there is afforestation of the territory at the expense of shrubs, they become more to 3-5 pcs per 100 m². Anthropogenic and climatic factors led to an increase in the number of steppe species from 24 to 32 and ruderal species from 17 to 32 species in 2022 compared to 2014. Four species of sedges, Carex riparia, C. melanostachya, C. hordeistichos, C. vulpina, were found and determined from 8 previously discovered rare species of the Red Books of the Russian Federation and Stavropol Krai, were found and determined: Tulipa biebershteiniana, Bellevalia sarmatica, Iris halophila, Iris taurica, Paeonia tenuifolia, Adonis vernalis, Dactylorhiza incarnata, Anemone sylvestris, which is 6.78 % of the floristic composition of the area. It was established that the majority of rare and endangered species populations in natural habitats are growing with a predominance of vegetative and juvenile individuals.
Problems of industrial waste disposal in the Fergana region
Authors: Domuladjanova Shahlo
Published: October 2023

In the article, the problems of waste disposal of production plants such as "Fergonazot" JSC, "Koqon spirt" JSC, "SWC" JSC, Fergana oil refinery and textile industry enterprises in Fergana region were studied and provided information on the results of the conducted research. Also, socially and environmentally effective methods of waste processing and disposal were researched. Work was carried out to calculate the efficiency of processing. Information on technological processes, tools, equipment and research methods for obtaining chalk, lime, gypsum, cement and other building materials through waste processing was presented.
Unauthorized landfills of the city of Tobolsk and Tobolsk district as a source of environmental pollution
Authors: Popova Elena
Published: October 2023

The paper presents the results of comprehensive research of unauthorized landfills in Tobolsk district of Tyumen region, Russia. As a result of the research, fifteen unauthorized landfills of municipal solid waste (6 landfills with the total area of 1,378.33 m2 within the city limits and 9 landfills with the total area of 4,679.64 m2 in the district) were found. A sketch map with the landfills’ coordinates was drawn up. The study was carried out to evaluate the composition and morphological structure of the MSW landfills. Heavy metals were found in the soils of the unauthorized landfills, namely zinc (11.2–54.3 mg/kg), cadmium (0.1–3.1 mg/kg), and lead (5.0–18.1 mg/kg). In terms of toxicity, these metals belong to hazard class I. Unauthorized landfills are sources of environmental pollution in urbanized areas.
Behaviour of a non-linear mesh cylindrical shell as an element of mems and nems
Authors: Krylova E.Yu. , Sinichkina A.O.
Published: October 2023

A new mathematical model of a non-linear mesh cylindrical shell behaviour in the temperature field under normal distributed load is constructed. The construction of the mathematical model takes into account the Kirchhoff-Love kinematic model and the Duhamel-Neumann hypothesis. The scaling effect is taken into account by the modified moment theory of elasticity. It is assumed that the displacement and rotation fields are not independent. Geometric nonlinearity is taken into account according to T. von Karman's theory. The equations of motion of the smooth shell, boundary and initial conditions are derived from the variational Ostrogradsky-Hamiltonian principle. The lattice structure of the shell was modelled by the continuum theory of G. I. Pshenichny. This allowed us to replace the regular rib system by a continuous layer. The equilibrium conditions of a rectangular element were used to write down the relations connecting stresses occurring in an equivalent smooth shell with stresses in the ribs. The Lagrange multiplier method has been used to determine the physical relationships for the mesh shell. By means of the method of establishment the study of features of the shell's plasticity has been carried out and the frequencies of natural linear vibrations depending on the mesh geometry have been obtained.
An intelligently distributed system for controlling information flows
Authors: Zhuzhgina Irina , Lazarev Alexey
Published: October 2023

The existing controlling software toolkit is represented by multiple software modules to ensure effective organizations management. An important most information systems component is the possibility of remote and distributed work in multi-user mode. At the same time, the disadvantages of multi-level TCP/IP routing, the presence of various CVE vulnerabilities contribute to data leakage and unauthorized changes. Based on these conclusions, the main purpose of the study can be identified – the development of an intelligently distributed traffic tunnelling system. The proposed approach uses deep learning models both for predicting IP address samples during initialization of a secure connection and for dynamic network traffic filtering in the DNS server. The proposed authentication algorithm based on the dynamic extension of the function made it possible to automate the trusted client’s authorization process, and the implementation of a combined decision–making system - to ensure the correct interaction of all software modules. The development result of the proposed system allowed both to reduce time costs when working with controlling information systems and to ensure safe interaction.
Asymptotic behavior of solutions of a system of nonlinear differential equations with small parameter
Authors: Petelina Vera
Published: October 2023

The present paper addresses a qualitative pattern of the behavior of solutions of a system of ordinary differential equations when small parameter tends to zero at a finite amount of time where slow variable passes through a certain point that corresponds to a bifurcation in the system of fast motions: stable limit cycle merges with unstable one and disappears. The problem of generation of an asymptotic approximation of the solution of a perturbed differential equation system is considered in the case where a bifurcation occurs in the “fast motions” equation when the parameter changes: two equilibrium positions merge, followed by a change in stability. The results of the article are used to determine second-order perturbations in rectangular coordinates and components of the velocity of the body under study. The coefficients at the projections of the perturbing acceleration are integral functions of the independent regularizing variable. Singular points are used to reduce the degree of approximating polynomials and to choose regularizing variables.
The digital technology revolution in construction: Process transformation
Authors: Zatsarinnaya Elena , Barinov Sergey , Plekhanova Svetlana , Khonchev Mikhail
Published: October 2023

The article discusses the issues of the digital technology revolution in construction, pays direct attention to the process of transformation and optimization of projects. Attention is paid to improving efficiency in the construction industry through the use of digital technologies. The article presents the material of the building information model (BIM) application, which integrates data and information about the project into a single electronic model. Automated project management systems are also considered, which make it possible to manage projects, coordinate the progress of work, plan resources, and ensure the safety of construction work. The issues of the use of virtual and augmented reality technologies are considered, which make it possible to visualize the future of the project, so that customers can imagine the future of the construction object on a virtual model.
Application of finite and infinite functions in determining of the metalworking dusts particle size distribution
Authors: Gumenyuk Alexey , Dzhedirov Dmitrii , Bulygin Yuriy , Kuptsova Irina
Published: October 2023

Particle size distribution is an important parameter for dust quality and properties assessment as well as a factor to estimate the air dustiness influence on humans and the choice of an appropriate dedusting means. The academic literature analysis shows that, unlike technological dust, there is practically no information available about theoretical models of metal machining dust size distribution. In addition, researchers rarely use finite functions, although an appropriate particle size distribution determination is crucial for dedusting ventilation systems designed for machine tools. The article examines the metal machining dust particle size distribution description using finite and infinite functions, and discusses the features and advantages of their application. As a result, it is concluded that infinite functions are good at describing dust with a high extremity of outliers. On the contrary, finite functions appropriately describe dust with low tailedness, the measure of which is the kurtosis. It should be noted that the obtained results are related to the dust analysis methods, including sieve analysis when selecting a sieve size range.
Determination of anti-icing properties of a gas-thermal coating protective coating with a surface layer of PTFE
Authors: Kostin Vasily , Kochetkov Vladimir , Sokolova Natalia , Mankovsky Sergey , Orlov Sergey
Published: October 2023

Icing is a negative factor in the operation of various structures and equipment. Ice, due to its physical characteristics, has an aggressive effect on the surfaces of many materials. The use of anti-icing coatings is one of the ways to passively prevent the negative effects of icing. Anti-icing coatings developed by Technological Systems of Protective Coatings LLC (TSZP LLC) are promising coatings intended for operation in the aquatic environment. The authors studied the performance characteristics of the developed anti-icing thermal thermal coatings with a surface layer of PTFE under field testing conditions. The results of the experiments carried out confirmed the anti-icing properties of the coatings under study.
Justification of optimal parameters for quadcopter PID-controllers with frame sizes up to 150 mm
Authors: Kurbanov Rashid , Litvinov Maxim , Krivko Stanislav , Zakharova Natalia , Kuprin Alexey
Published: October 2023

Unmanned aerial vehicles with a frame of up to 150 mm are used in agriculture to solve problems in smart greenhouses. Calculating the values of PID-regulators when optimizing the drone operation allows to reduce the risks of flight controller misadjustment and increase the accuracy of its control in different flight conditions. The aim of the study is to calculate the optimal values` of the PID controllers of the UAV, develop an algorithm for coefficient calculation, and compute the proportional, integrating, and differentiating errors along the deviation axes. The authors have developed a quadcopter with a take-off weight of up to 150 g for monitoring an industrial greenhouse. The mathematical theory of optimal control and stabilization was applied. A research analysis on the optimization of quadcopter flight was carried out. Experimental research in mechanics on adjusting the stability and acceleration of the quadcopter prototype during flight was carried out. Based on the mathematical formula for calculating the control signal, an algorithm was developed to calculate the coefficients and to compute the proportional, integrating, and differentiating errors in the axes of control deviation of the quadcopter’s brushless motors. Optimized settings of the PID-regulator stabilization system in Betaflight Configurator program for stable flight of the quadcopter prototype are selected, taking into account design and technical characteristics. The optimal values of coefficients (Kp, Ki, Kd) on the roll, pitch and yaw axes for the quadcopter prototype under development were justified.
Organizational and technological support for improving the energy efficiency of repair and construction works in the housing industry
Authors: Zilberova Inna , Novoselova Irina , Petrov Konstantin , Mikhaylov Evgeniy
Published: October 2023

Presently, due to the growing shortage of basic energy resources, the increase in the cost of their production and the presence of acute issues associated with environmental degradation, the integrated use of energy-saving measures and innovative energy-efficient technologies in the housing and utility industry is one of the necessary conditions for the successful development of the country's national economy and maintaining a favorable state of the environment. The use of modern energy-efficient materials and technologies in residential buildings, including during the overhaul of residential buildings, makes it possible to reduce energy consumption and save significant funds for citizens on utility bills.
Nonlinear calculation of structural elements according to transforming design schemes
Authors: Kuznetsova Irine , Berezhnoi Dmitri , Ekhsayem Duaa , Laalai Faicel
Published: October 2023

An approach to the calculation of the processes of structural elements deformation and their environments in the case of a complex phased erection of building objects is proposed. On the basis of consistent equations of the geometrically nonlinear theory elasticity within the finite element approach to the geometry description, a technique for solving three-dimensional statics problems of concrete and reinforced concrete structural elements is implemented. On the basis of calculation by transforming calculation schemes new computational models of spatial elements deformation of building structures during their interaction with soil media have been developed. On the basis of the proposed methods the underground elements deformation problem of building structures was solved when carrying out technological measures related to the local strengthening of already erected underground facilities. The calculation results showed that the use of the proposed methodology makes it possible to implement the determination of the stress-strain state and displacement fields in the phased construction zone in a single design scheme.
Investigation of warp tension on looms with a new automatic brake
Authors: Kholmurzayez Abdurasul , Alidjanov Adiljan , Khusanboyev Abdulqosim , Madaminov Javlonbek
Published: October 2023

In this article, the task was set to study the existing main planetary regulator on machines of the AT type. It is proposed to modernize the design of the planetary regulator, expediently providing for the features of the production of fabric from boiled natural silk. This will allow you to choose the optimal warp tension mode and reduce the breakage of the warp threads on the loom. Keywords: breakage, main threads, beam, planetary regulator, tension, influence, rock, friction, arises, brake, reverse, pulley, washer.
The concept of management of digital transformation of economic activity of industrial enterprises
Authors: Arakcheev Dmitry
Published: October 2023

A concept of managing the digital transformation of economic activity of industrial enterprises has been proposed, which includes a target management model, a sequence of managerial actions implementation, a management toolkit, management support, and efficiency, aimed at achieving organizational ambidexterity by simultaneously managing existing business processes and exploring and developing new opportunities for the development of an industrial enterprise based on the implementation of digital management and digital innovations. This concept allows defining goals, objectives, principles, target model, organizational structure, action plan, identifying risks, conducting a diagnosis of the current level of digitization, and evaluating the effectiveness of managing the digital transformation of economic activity of industrial enterprises.
Ecological certification of organic production in Russia
Authors: Yakovleva Tatyana , Kapralov Petr
Published: October 2023

The stage of formation of organic agriculture has begun in Russia. According to the requirements of Russian legislation and international standards, organic agriculture provides for the production of organic products in conditions close to biological processes occurring in natural ecological systems. Organic agriculture should be based on a set of methods that ensure a viable ecosystem, safe food, healthy nutrition, animal health and social justice, and an organic product is a product that is produced in accordance with organic farming standards. The system of state regulation of organic production in Russia is insufficiently formed and does not fully meet the modern requirements of international standards. The purpose of the study is to assess the compliance of Russian legislation with the requirements of international standards in the field of certification of organic production. The laws introduce requirements for certification of only organic products themselves, which is insufficient to solve the tasks set by the state and the international community. The proposed model of ecological certification of organic production will meet the challenges in the field of organic agriculture, environmental protection, and organic products will meet international requirements and standards, which will contribute to the output of products on the Russian and international market.
The essence of digital reengineering in enterprises
Authors: Kazmina Irina , Popova Ilona , Smolyaninova Irina , Igolkin Sergey , Igolkin Ivan
Published: October 2023

One of the ways to improve the efficiency of enterprises is the reengineering of processes. Reengineering is based on management theory and is actively used by foreign enterprises. Reengineering involves the adoption of process thinking and the use of advanced information technologies in combination with an attempt to carry out organizational transformations. Reengineering allows you to change the key elements of the company's activities, such as: the speed of customer service, the cost of production, the quality of finished products. Therefore, it is relevant for many large and medium-sized enterprises in various industries. The article discusses one of the approaches to optimizing enterprise processes – digital reengineering. It is proved that the reengineering strategy can be very effective for enterprises that face difficulties in managing processes and achieving goals. Digital reengineering can lead to a significant improvement in business processes, increase productivity and increase the competitiveness of the enterprise. The practice of reengineering at enterprises can be different and depends on the specific conditions and goals of the company. It is revealed that the organization of reengineering at the enterprise requires significant resources and efforts. However, with the right approach, reengineering can lead to a significant improvement in the productivity of the company.
The role of improving tax relation for the growth of agricultural production
Authors: Ahrorov Zarif , Yekimov Sergey , Tuychiev Sherkhon , Ortikov Akhmadjon
Published: October 2023

Considering taxes to be the universally recognized regulator of the economy, related ideas on the proper organization of tax relations are being promoted in various scientific papers. The relevance of this problem is caused, firstly, by the choice of a model of tax regulation within the framework of the general economic situation, by thoughts that are about “tax relations”, “principles of taxation”, “mechanism taxation”, “about the nature of the tax”, and secondly the within the framework of the tax system operating in the Republic of Uzbekistan, the instruments of tax relations are characterized by high economic inefficiency. The purpose of this research is to generalize the works on tax relations, improve tax regulation, develop the necessary proposals and recommendations to enhance the role of tax regulation mechanisms in the framework of improving tax policy that aimed at ensuring high economic growth. The paper also analyzes theories of tax regulation in the framework of using tax regulation mechanisms in order to ensure the growth of income (profit) of economic entities with a simultaneous decrease in the share of tax revenues in GDP. By defining the economic boundaries of tax policy, it is possible to solve not only the problems of economic growth of the country as whole, but also social issues in changing economic conditions. The paper also analyzes the opinions of various domestic and foreign economists on tax relations.
State financial regulation of renewable energy development
Authors: Guz Natalya , Tsareva Liudmila , Adamova Irina , Guz Grigoriy
Published: October 2023

The article considers financial incentives for the development and application of renewable energy technologies. The authors argue that state support is necessary to make renewable energy competitive with non-renewable energy. The state financial regulation of renewable energy is fixed by corresponding programme documents. Green bonds, block grants, reduced rates of customs duties, subsidies and preferential lending can be used as instruments of financial stimulation in different countries. The article points out the remaining obstacles and barriers that limit the wide application of renewable energy.
Climate bonds and their role in the development of ESG-finance banking practice: Global and Russian experiences
Authors: Daroshka Vitali , Aleksandrov Igor , Trushkin Vyacheslav , Chekhovskikh Irina , Ilina Victoria , Ol Ekaterina
Published: October 2023

The history of banks' involvement in solving the issues of sustainable development of the society is, on the one hand, short by the standards of economic history, and on the other hand, bright and ambiguous. This is explained by the strategic goal of the banking institution functioning - ensuring a stable turnover of financial resources in the socio-economic system of the country and building up financial capital. It is the latter component that caused the interest of the market and state regulators in the possibility of attracting banks' capital to finance so-called "green projects" aimed at solving local or global environmental problems of mankind. Today, the strategic agenda of more and more banks includes various elements of ESG-methodology of responsible corporate behavior, implemented in the form of corporate social policy (mainly focused on the bank's staff and its clients) and a portfolio of "green investments" - a group of projects that are mainly socially-oriented or infrastructural in nature. The purpose of such responsible investment is both to solve specific socially or environmentally important tasks and to strengthen the market position of the bank-investor itself, which forms a positive image in the eyes of its key stakeholders and improves the rating position of investment attractiveness both domestically and in international rankings compiled by reputable analytical agencies, such as S&P, Moody's Investors, and Fitch Ratings.
Digitalization of economy: Discourse analysis perspective
Authors: Garamyan Arusyak , Kholokhoev Islam , Sugarova Irina
Published: October 2023

Digital economy represents a system of economic relations mediated by technological achievements. In the near future, according to the opinion of some analysts, companies with a high level of digitalization will take the leading positions in the global and national markets. Today, a number of progressive companies are widely introducing digital tools in various sectors of the economy, investing money in the construction of data processing centers and the introduction of storage systems for business operations and customers. It is understood that digital tools may allow combining production with individuality, shortening the period from the development of an innovative idea to the sale of finished products, and providing an opportunity to achieve effective customization to meet consumer requirements. This is exactly what we are witnessing today in the activity of higher education institutions which have demonstrated flexibility and predictive capability in fitting in with modern economic processes.
Features of economic accessibility of food supply of the population
Authors: Yakovlev Valeriy
Published: October 2023

This study is devoted to the analysis of the economic accessibility of food supply to the population. The authors consider the main conditions for access to products, such as their appearance on the market and economic accessibility. The problems of food security and economic accessibility are discussed in the context of the Russian agro-industrial complex. A difficult situation in the industry is revealed, associated with the debt burden of agricultural producers, limited opportunities for modernization and low availability of certain products. To overcome the problems, it is proposed to develop comprehensive strategies, including stimulating agriculture, improving lending, developing cooperation and applying advanced agricultural technologies. This study is of practical importance for the formation of policies aimed at ensuring the economic availability of food and improving the quality of life of the population.
Labor and employment in the sustainable development of the region
Authors: Kolesnik Elena
Published: October 2023

The purpose of the study is to conduct a study of the impact of labor and employment on the sustainable development of the region, allowing them to ensure their economic and social functions. The designated problem was investigated through the use of various methods of scientific analysis, including empirical and theoretical levels, as well as methods of generalization of research results. The result was the formation of an empiricism that allows us to state that the concept of sustainable development is considered as a balance between economic development, social justice and environmental protection. It was highlighted: in sustainable development, the leading place is occupied by labor and employment, which make it possible to ensure their economic and social functions. It is emphasized that the negative dynamics of employment indicators in the Tyumen region has a serious impact on the implementation of sustainable development goals. It is concluded that the key to achieving the Sustainable Development Goals in the region is a balanced approach that will take into account both economic and social aspects of its development.