bluuebunny/crossref_metadata_2025 huggingface dataset:
Industry analysis of the competitiveness of Rostselmash as a major manufacturer of agricultural machinery
Authors: Borisova Lyudmila , Alukhanyan Arthur
Published: February 2023

The article discusses issues related to the industry competitiveness of Rostselmash in the context of agricultural machinery for various purposes and performance classes. As estimated indicators, the total turnover in the direction of grain and forage harvesters, market capacity, total shipments of combines, etc. are highlighted. The analysis of the mutual conditionality of grain prices, effective demand and the world's shifting grain residues is given. A significant part of the article is devoted to assessing the competitive position of Rostselmash in the domestic market and the markets of Belarus, Kazakhstan and Ukraine in the context of grain and forage harvesting equipment and combines of various performance classes. The reasons for the weakening of certain positions and the strengthening of others are analyzed. Conclusions are drawn about the prospects of strengthening positions in the competitive struggle in the designated markets. The illustrative material contains bar charts of the dynamics of the total turnover of Rostselmash grain and forage harvesters for the analyzed period, the Russian market of combine harvesters, the market share of Rostselmash, the fleet of combine harvesters of the Russian Federation, the total shipments of grain and forage harvesters Rostselmash in the Russian Federation and for export, the export of Rostselmash machinery to foreign countries.
Iconicity as a way of exchanging scientific and technical information in academic texts in the context of sustainable development of sociolinguistic interactions
Authors: Filicheva Oksana , Pankova Victoria , Krasnova Evgenia
Published: February 2023

Nowadays, there is an increasing interest in non-verbal means of written forms of interpersonal communication. It is explained by the fact that the informational component and the pragmatic potential of non-verbal means of communication are often much higher than those of verbal means. As a result, the researchers focus their studies on texts which structural organization contains, in addition to verbal code units, the means of other semiotic codes. Such texts are called creolized or polycode. Polycode texts are a distinctive feature of academic texts, and their interpretation poses certain difficulties for students. The purpose of this study is to analyze the structural components of academic polycode texts; to study the ways of organizing verbal and iconic components; to describe the functional characteristics of iconic elements; to establish the mechanisms of interaction between linguistic and paralinguistic means when creating a single semantic unity of a polycode text. The main research methods are analysis, synthesis, comparison and observation. The textbook for the training of professional engineersCambridge English for Engineering written by M. Ibbotsonis used as the empirical material. The authors come to the following conclusions: there are four types of academic polycode texts; each type has a different pragmatic potential of verbal and iconic parts; in some types, the information function is more prominent in the iconic component; the use of photographs as iconic means facilitates the process of text interpretation and scientific and technical data exchange.
Development of technology of gingerbread products enriched with raw materials of the Far Eastern region
Authors: Kostrykina Svetlana , Osipenko Elena
Published: February 2023

Providing the population with high-quality food products enriched with physiologically significant nutrients at an affordable price is a priority task of the state policy and the government of the Russian Federation. The article shows the possibility of expanding of the range of gingerbread products enriched with natural raw materials of the Far Eastern region. The technologies of the production of berry powders recommended as functional ingredients have been developed. It has been established that the replacement of flour with powder from Kamchatka bilberry pomace in the amount of 5.5% or powder from common barberry in the amount of 7.5%, soy deodorized flour of the highest grade in the amount of 5% and food additive from Daurian larch wood "Arabinogalactan" in the amount of not more than 3% in gummy gingerbread recipe contributes to obtaining a product that meets the requirements of GOST 15810-2014 and safety indicators of the requirements of the Technical Regulations of the Customs Union (TR CU) 021/2011 "On Food Safety". Laboratory studies of the developed gummy gingerbread have proved compliance with the requirements of regulatory documents for organoleptic, physicochemical and microbiological indicators. The technology development and the use of berry powders in the production, which make it possible to enrich traditional food products is of practical interest. The expediency of using regional raw materials to expand the range of flour confectionery products of increased nutritional and biological value has been proved.
A brief overview of the studies on the climatic impact of heavy precipitation events in Hungary
Authors: Horváth Nándor , Kovács Tünde Anna
Published: February 2023

Climate change is one of the major problems of our day. In different areas of the earth, climate change causes different problems. On the European continent, according to observations, the dry and rainy periods have changed significantly. During rainy periods, the amount of water from the rain falling in a short period increased significantly. The authors' research focused on a smaller East-European area, Hungary. A significant part of damage events in Hungarian settlements is related to surface and underground waters and rainfall activity. The road network, the cellars and the gutters of municipalities are often subject to damage due to the inappropriate construction of the drainage system. The article analyzes the local effects of climate change based on the analysis of the weather data of the past years. The change in the number of rainy days and the amount of rain is evidence of a change in the weather. This work is an overview based on previous studies and statistical data showing the climatic impact in Hungary.
Intensification of water extraction of non-fruit parts of sea buckthorn (Hippóphaë rhamnóides)
Authors: Safina Albina , Ismailov Lenar , Safin Ruslan
Published: February 2023

The healing properties of extracts from sea buckthorn fruits have been confirmed by numerous studies, however, the infertile parts remaining after harvesting or after pruning young trees also contain valuable components. Leaves, bark, shoots and woody parts of sea buckthorn are very promising raw materials for the extraction of biologically active substances. The introduction of non-waste technologies, issues of resource conservation, the search for rational ways to isolate valuable components from the non-fruit part of sea buckthorn determined the relevance of this study. The choice of the optimal method for the extraction of non-fruit parts of sea buckthorn is aimed at accelerating heat and mass transfer processes and increasing the rate of diffusion extraction of biologically active substances. The paper reflects the results of experimental studies of traditional aqueous extraction of non-fruit parts of sea buckthorn, namely leaves, bark, shoots and wood, and the results of intensification of extraction by preliminary freezing of the feedstock. The influence of the raw material freezing rate on the size of the formed ice crystals is analyzed. It has been established that at a freezing rate of 0.1-1 cm/ h, large ice crystals form in the intercellular space of plant raw materials, causing mechanical damage to cellular structures and contributing to better leaching of biologically active substances, which is confirmed by experimental studies.
The environmentally-efficient canal district design respecting urban context
Authors: Akimov Luka , Badenko Vladimir , Fatkullina Alina
Published: February 2023

The following paper discusses the development of the work-flow that can be used in practice for the urban environmentally-efficient attraction points design and restoration. We developed the work-flow on the basis of the example of the design of canal district restoration in the heart of the city of Bangkok. The reference concept was developed in the scope of the International Workshop of Ur-ban and Architectural Design X edition, organized by Politecnico di Milano and Chulalongkorn University. The design ideas developed in this project are present in the study. In this article we discuss the importance of water districts restoration from environmental, social and economic points of view. The introduction of the work-flow of the canal district design that has its aim to meet the existing urban context and all the important requirements is important for designers and urban planners, since it can help to resolve a number of questions that have to be properly studied. The importance of introduction of GIS and digital twin technologies to the landscape restoration projects is as well discussed.
Phytocenoses withTilia cordataMill. at some areas of the south of the Tyumen region
Authors: Kharitintsev Boris , Popova Elena
Published: February 2023

Within the south of the Tyumen region, linden forests are represented by various phytocenoses (Tiletum urtico – diplaziosum, Tiletum diplaziosum, Tiletum pariso – caricosum, Tiletum struthiopteriosum, Tiletum athyriosum, Tiletum paeoniosum, Tiletum oxalidosum, Tiletum microcaricosum, Tiletum microherbosum, Tiletum graminosum, Tiletum gymnocarpiosum, Tiletum cirsiosum, Tiletum brachipodiosum, Tiletum lycopodiosum, Tiletum linnaeо – microcaricosum). Lime forests are distributed along the banks of the Irtysh and Tobol rivers and on the slopes of the shores of lakes of southern exposure. The bonitet ofTilia cordataMill., the studied phytocenoses, varies from class I to V, which is determined by the degree of soil moisture, and is an edificator of phytocenoses. Unique phytocenoses with participation ofTilia cordataMill. identified near the village of Setovo (Tobolsk district, Tyumen region). This community is relict.
The effect of negative temperatures on the retaining walls of deep pits
Authors: Metelkin Sergey , Paramonov Vladimir
Published: February 2023

In countries with negative winter temperatures, pits and walls of underground structures are subjected to additional forces caused by frost heaving forces. In Russian construction practice, cases of the impact of such forces on the struts and anchors of construction walls are known, which led to the loss of stability of the struts and the failure of the anchors. Obviously, the design of retaining walls in winter should take into account the effect of additional forces caused by frost heaving and their evolution over time. The solution of test problems for an open pit shows that under certain conditions, the forces in the struts can exceed their values by an order of magnitude, determined when taking into account only the active pressure of the soil. Experimental studies were carried out to assess the processes of development of forces in the elements of the retaining walls in winter. The calculated assessment of the temperature fields and the stress-strain state in the excavation walls was performed using the Termoground program. The comparison of results of experimental and calculated data are shown in the article. The comparison of results of experimental and calculated data is shown in the article.
Taking into account technological features of the diaphragm wall for deep pits
Authors: Kuznetsov Alexandr , Bashmakov Ivan , Murashova Diana , Savikov Roman
Published: February 2023

This article analyzes the existing analytical and numerical methods for calculating the structures of the pit enclosure by the method of trench wall in the ground. The discrepancy of the results of various calculations among themselves is shown and the main disadvantages of each calculation scheme are revealed. None of the existing analytical methods allows taking into account technological and design features in a complex manner, which leads to a significant error in the results. The authors considered an approach to solving this problem in a spatial setting using various finite element complexes, taking into account the nonlinearity of concrete and soil. The results of numerical experiments demonstrate a significant reduction in forces in the enclosure, which can serve as a justification for the need for a new methodology that will optimize design solutions.
The horizontal load test on pressure-injected piles in damped subsiding Soils
Authors: Setev Nyamdorj , Buyankhishig Basbish , Dalai Dashjamts , Mangushev Rashid
Published: February 2023

In connection with the needs of the present, the question of the optimal design of building foundations, taking into account the regional characteristics of loess-like silty clay soils, common in Mongolia, becomes relevant. In recent years, in the Orkhon-Selenginsky region and especially in the Darkhan region, industrial and civil buildings and engineering structures are being actively built up and planned to regulate the problems of overpopulation and smoke in the city of Ulaanbaatar, Mongolia. The regularity of the process of changing the stress-strain state of loess-like subsidence soils of the base due to technogenic moistening is subject to the general theory of subsidence soil mechanics, but each region of the world has its own distinctive feature depending on territorial and climatic conditions. Settling clayey soils of Mongolia in their natural state have a relatively high content of water-soluble and slightly soluble carbonate and other salt compounds and, due to their cemented and crystallized structural bonds, they have relatively high mechanical properties, but the mechanical properties, due to the weakening of structural bonds during soaking, sharply decrease to a value of c =7.0…10.2 kPa, φ=16….÷20°, E=3.5…4.5 MPa and subsidence begins depending on the type of soil at pressure Р=0,15 MPA and W= ( 6.7…8.6)% or W_sat, while the relative subsidence index is ε_sl>0.01. At pressure Р=0,2MPa and W=(6.1…7.6)%, subsidence begins, and at pressure Р=0.25MPa and W=(5.2…6.9)% drawdown begins. These moisture values are calculated respectively at the given pressures as the initial settling moisture W_sl. This article discusses the results of field tests of bored piles for a horizontal load, taking into account the moistening of the subsidence soil of the foundation of buildings and structures.
Rock pressure calculation for rocky and disperse soils
Authors: Korolev Konstantin , Stakhnyov Yaroslav , Kuznetsov Anatoly
Published: February 2023

The paper discusses the classical problem of determining rock pressure on a mine working support. In this problem, the authors differentiate two cases – rock pressure in rocky soils and rock pressure in dispersed soils. This division is due to the significant differences observed in the rocky and dispersed soils in their ultimate states. In particular, while the strength of dispersed soils can be described by the Coulomb line, for rocky soils the envelope of the Mohr circles has a pronounced nonlinear character. It was found as a result of calculations that there exist three supporting schemes for any soil depending on the width of excavation: self-restraining arch (or ceiling), pressure arch, and caving column. The paper introduces the concept of two critical spans of a mine working that differentiates the said schemes. A hypothesis has been proposed and verified that the process of rock pressure formation is quite similar to that for active pressure on retaining structures.
Statistical validity of quantitative assessment of the structure of building composites for sustainable development
Authors: Makeev Alexey
Published: February 2023

This paper proposes the problem of the complexity and consistency of a qualitative description and the reliability of a quantitative assessment of the characteristics of the structure of building composites. The results of an experimental assessment of the statistical error in identifying the structure of building composites (by the example of silicate microconcrete) by the methods of X-ray phase and differential thermal analysis are presented in comparison with the relative error of mechanical tests of the material. It is shown that under the condition of setting technological factors under control, the statistical variability of the composition and structure of the material does not exceed 5-7%, and the physical and mechanical properties are at the level of 10%.
Technological aspects of building the transport ecosystem of the Russian Federation: economic issues of energy engineering
Authors: Tsertseil Juliya , Bondarenko Tatiana , Prodanova Natalya , Domnichev Dmitry
Published: February 2023

The article discusses the prospects and technological steps for building and further developing the transport ecosystem of the Russian Federation. Such a transformation of the existing transport system is in demand due to the economic conditions of energy engineering and consumption. The article presents the drivers that ensure the growth and development of the transport ecosystem of the Russian Federation, describes the technological aspects that act as a limitation in its development. An analysis of the dynamics of the development of the transport ecosystem of the Russian Federation was carried out for the period 2022-2021 according to statistical reporting. Its functioning directly affects the socio-economic development and security of the Russian Federation, the development of transport and logistics technologies, and the creation of a trend towards low-carbon transformation of the industry. Such an approach will ensure the sustainable development of the economy of the industry and the country, and improve environmental hygiene and environmental health.
Parameterization of kernels of the Volterra series for systems given by nonlinear differential equations
Authors: Kislovskiy Evgeniy , Taran Vladimir , Taran Aleksandr
Published: February 2023

The presented article is devoted on an issue regarding to the transformation of nonlinear models of a certain class to the Volterra functional series. The new identification method based on analytical input and output of a system was developed. The key task of representing kernels was achieved by Frechet functional derivative. Explicit calculation of the functional derivative for the output was solved using mean-value theorem, while the sifting property of the Dirac function was used in order to solve derivative of input. Attention is given to the calculation of the second-order functional derivative. The procedure for adding linear kernels to the composition of a quadratic kernel is described. All techniques of the method to other components of the model are described in detail. The method's outcome is differential equation, which allows representation of kernels. An illustrative example of the transformation of the nonlinear differential Riccati equation is considered. The form of a subsystem consisting of linear and quadratic kernels for adding to a complex system is shown. Linear and quadratic kernels were parameterized using operational calculus within the example. The agreement of the obtained analytical results, with the frequency characteristics, which was obtained by the test signals method, is shown.
Retracted Article: Protection against urban underflooding in underground development: anti-barrage drainage
Authors: Scherbakov Alexander , Sokolov Sergey
Published: February 2023

This paper has been formally retracted on ethical grounds because the article contains
extensive and repeated instances of plagiarism. The authors are responsible for this
mistake and apologise for it. Request approved by the proceedings Editor and the
Publisher on September 13, 2023.
Experience space practice based on ecological building materials: paper bamboo house architectural design in Panyu, China
Authors: Chen Yile , Chen Junzhang , Zheng Liang , Tang Qiang
Published: February 2023

Buildings carry people's emotional thoughts. Paper Bamboo House establishes an emotional connection between space and people through characteristic ecological materials, pays attention to people's true perception of buildings, and emphasizes the rhythm of architectural form and rhythm. The architectural design needs to explore the possibility of space existence from the regional culture, rebuild the relationship between the building and the surrounding environment, strive to create a harmonious building that coexists with nature, and practice the regional practice of low-carbon architecture. Advocate to use the comprehensive thinking of reason and art to explore the meaning of space and form.
The amplitude of light scattering by a hexagonal column with hollow ends in the Rayleigh-Gans-Debye approximation
Authors: Shapovalov Konstantin
Published: February 2023

The formulas for light scattering amplitude and phase function [or element of scattering matrixf11] of hexagonal column with concave ends in the Rayleigh-Gans-Debye (RGD) approximation are derived. Numerical results for the phase function of light scattering of hexagonal column with pyramidal hollow ends in the RGD approximation and in the method of Purcell-Pennypacker (or discrete dipole method, or coupled dipole method) are compared. The good agreement for hexagonal columns having small phase shifts has been found.
Mathematical modeling of viscoelastic foam material for design of filtering respirators
Authors: Tyurin Igor , Tashpulatov Salih , Belgorodsky Valery , Andreeva Elena
Published: February 2023

The work is devoted to the development of a mathematical model of the foam material of the filtering half mask. The analysis of the methods used to study the leveling of the negative effect of the compression pressure of the filtering half-mask on the soft tissues of the human face under conditions of long-term operation was carried out. In order to study the mutual influence in the medium "filter material - foam material - human soft tissues", it is proposed to conduct virtual tests using numerical methods. The development of mathematical models of linear viscoelastic materials is based on the study of the relationship between the input and output characteristics of viscoelastic materials: stress and strain. The paper is devoted to the development of the mathematical model of linear viscoelastic materials using a transfer function. The model is designed to investigate the relationship between stress and deformation in viscoelastic materials using numerical methods.
Analysis of the operation of the device for the introduction of meliorants
Authors: Vasilyev Alexey , Igoshin Denis , Andreev Vasiliy
Published: February 2023

The device for applying meliorants is designed for the distribution of nutrients, presented in liquid form, in the sublap space of a plane-cutting tillage tool. Distribution is carried out by spraying liquid meliorants, which allows you to saturate the fertile soil layer with nutrients and substances to obtain a high yield. Spraying of liquid meliorants occurs due to the directional effect of compressed air on the liquid jet, as a result of which the jet breaks up into a finely dispersed medium, which makes it possible to moisten a significant part of the plow sole and the soil layer being cut. The formed layer, when falling from the dump of the working body to the plow sole, is destroyed and a favorable condition is created for the distribution of nutrients in the treated soil layer. Also, the optimal humidity necessary for the growth of crops is normalized and preserved from volatilization.
Effect of Fluid Media on Abrasive Polymeric Composite Products with Various Elasticity
Authors: Bagaiskov Yuri
Published: February 2023

The fluid media influence studies established that only water substantially affects epoxy-based rigid composites; the effect of kerosene and oil on products modified with acetur and, particularly, polyethylsiloxane is insignificant. Besides, bending strength and hardness change approximately in proportion to the level of saturation. As for elastic composites, the level of saturation depends on the fluid type and laprolate rubber component in the bond; the water effect is substantially higher as compared to other fluids. The more laprolate, the higher the effect of fluids is. Due to low viscosity, water enters pores easily, dissolves unpolymerized material areas, breaks adhesive bond, and deteriorates composite quality. Thus it is necessary to foresee use of fluid media according to the particular parameters of the composites and fluids, as well as service life.
Some contemporary aspects of master planning, design and development for suburban territories of large cities
Authors: Stetsky Sergey , Dorozhkina Ekaterina
Published: February 2023

The article discusses the modern state of affairs in the field of master planning of suburban territories. It is noted, that for the time being such a problem is becoming urgent and actual, due to enormous rise of urban territories, which occupy not only small satellite towns around megapolises, but also the original and traditional suburban areas, and even the countryside territories with small settlements. That’s why a new challenge emerged, which required a high-quality design approach, based on contemporary scientific achievements. A number of recommendations are being given in the article and some conclusions are being made, based on modern practice of urban planning, design and development. The main idea of the article is that urbanization can not be banned and thus it should be scientifically organized and controlled.
Experimental researches of elastomeric materials to stabilize the oscillation of power grid structures
Authors: Tanasoglo Anton , Garanzha Igor
Published: February 2023

This paper proposes a new type of insulator, has both insulating and damping properties to improve the operational reliability of overhead power lines' structures (OHPL). In order to assess an effectiveness of the new insulator's design have made laboratory tests of a insulator model with different types of elastomer seals, differed of the rubber marks and the type of reinforcement. An experiment consist of two stages: at the first stage an object of study has been exposed to cyclical vibration, at the second – the impact of an impulsively load. Results of the research showed, that the most effective are the elastomeric gasket with a minimum rigidity characteristics without reinforcement. Using insulators with such dampers allows to reduce the first maximum impulse to a support by an average of 20% and reduce the frequency and amplitude characteristics of the system. Based on this was developed a new type of elastomer reinforcing with steel sheet elements in the form of a truncated cone.
Retracted Article: Calculation of maximum allowable capacity coefficient for urban passenger transport
Authors: Scherbakov Alexander , Pushkarev Alexandr , Kuzmin Oleg , Vinogradova Tamara , Petrov Andrey
Published: February 2023

This paper has been formally retracted on ethical grounds because the article contains
extensive and repeated instances of plagiarism. The authors are responsible for this
mistake and apologise for it. Request approved by the proceedings Editor and the
Publisher on September 13, 2023.
Heat exchange between the fuel element of a nuclear reactor made of plutonium dioxide and its shell under boundary conditions of the fourth kind
Authors: Kanareykin Aleksandr
Published: February 2023

The work is devoted to the heat exchange of a nuclear reactor. Attention was paid to the mathematical modeling of the temperature field of the fuel element and the thin gas layer. It is assumed that the thermal contact between the solid–interlayer system is ideal. Methods of differentiation, integration and approximate methods were used for numerical modeling. The dependence of the thermal conductivity of plutonium dioxide on temperature was also taken into account.
Three-factor mathematical model for determinig motor vehicle fuel consumption under operating mountain conditions
Authors: Avagyan Ani , Yeritsyan Gagik , Tonapetyan Pargev , Karapetyan Martik
Published: February 2023

Various factors have an impact on fuel consumption during the operation of a motor vehicle. Among them, we can mention the nominal fuel consumption based on structural features and standard operating conditions of the motor vehicle as the primary reason, followed by additional costs of the fuel. The additional costs are due to changes in road surface conditions, an increase in the vehicle load, and the adaptability of the motor vehicle towards these. In other words, the increase in vehicle fuel consumption is explained by the deviation of operating conditions from standard values. This increase is particularly related to the level of vehicle adaptability. When operating in mountainous conditions, the indicated deviation is strongly related to the slope of the longitudinal profile of the road, as well as, to the geographic height of the terrain. In this paper, a three-factor mathematical model is developed which defines the relationship between the speed of the vehicle, the height of the terrain, and the slope of the road.
Influence of hydrothermal conditions on algae of the Shurinda thermal spring (Bauntovsky district, Republic of Buryatia)
Authors: Kuklin Alexey , Zamana Leonid
Published: February 2023

Studies of the water temperature in the Shurinda thermal spring in the winter of 2009 and 2021 showed lower values in 2021. The number of habitats with different temperatures increased in the space of the thermal field. In 2021, 10 previously unrecorded species were identified in the flora of macroalgae and cyanobacterial mats, including aggregations of Spirogyra sp. The greatest diversity of cyanobacterial mats was found in the temperature range of 50-25°С; in the range of 20-10°С, accumulations of Spirogyra sp. occupied the entire water column. Cyanobacteria again prevailed in the area with a temperature of 4.0ºС. The higher species diversity of algae in March 2021 is due to the lower temperatures of the therms and their lower flow, which led to a greater diversity of temperature within the thermal spring.
Stages of development and determination of the cost of development of regulatory environmental documentation on transport
Authors: Skorev Michail , Kirishchieva Irina , Zhigunova Anna , Kirishchieva Viktoria
Published: February 2023

The requirements of modern nature management imply mandatory compliance with environmental legislation aimed primarily at eliminating problems in the field of environmental protection. The primary measure in this direction is the development by economic entities of environmental documentation reflecting the main provisions of environmental activities. Management processes at the level of economic entities involve activities related to environmental protection, which is subject to mandatory documentation through the development of regulatory environmental documentation. Identifying the stages of this type of activity allows you to clearly understand the sequence of work in terms of the development of regulatory environmental documentation and properly organize management processes in this area. In addition, it should be taken into account that often the cost of developing such documentation is unacceptable for enterprises of various fields of activity, therefore, this article discusses the main individual postulates of the formation of such documentation and determining its cost both at the stage of a commercial offer and at the stage of concluding a contract for the development of environmental documentation.
Development of meat poultry farming in Russia within the framework of State programs
Authors: Marinchenko Tatiana
Published: February 2023

Current meat poultry farming, along with pig breeding, is one of the livestock sub-sectors that provides adequate nutrition for the population and food security of the country. The development of the sub-sector is provided by the goals, objectives and main areas for the development of state programs, as well as by the support that is provided within their framework. The experience of implementing programs and state support has shown high efficiency. Broiler meat is mainly obtained in industrial conditions. Achievements of science make it possible to obtain high production results. To solve the strategic objectives of meat poultry farming, a subprogram is being implemented, the purpose of which is to reduce the import dependence of meat poultry farming on imported breeding products and processes. The state of meat poultry farming in Russia, the dynamics of poultry meat production, the results of construction, reconstruction and upgrading of poultry farms within the framework of the state program and the results of the implementation of the subprogram are analyzed. Proposals have been formulated to clarify the productivity of domestic cross-country meat chickens and increase production through further upgrading and reconstruction of poultry farms that have been using outdated technologies and equipment so far.
Temperature distribution in Switzerland over the past 155 years: is climate change around the corner?
Authors: Mamadzhanov Roman , Zakirova Yulia , Lazareva Anastasia
Published: February 2023

The article presents the results of the study of the temperature distribution in Switzerland during the period of 1864-2019. The data set has been obtained from the records of the Federal Office of Meteorology and Climatology «MeteoSwiss». 3120 measurements of temperature taken in twelve periods have been processed. The temperature distribution over the period of 155 years has been analysed. The statistically significant influence of the factor (period) on the parameter (temperature) has been determined. The considerable differences between the annual values of temperature distribution in Switzerland and its regions as well as between the average values of temperature distribution by seasons during each studied period have been found out. Finally, taking into account the results of the research, the recommendations for further work on the study of climate change have been formulated.
Coronavirus spread analysis in the first pandemic year
Authors: Pitukhin Evgeniy , Pitukhin Petr , Gubaeva Mileta
Published: February 2023

The paper examines the characteristics of coronavirus spread in different countries around the world at the beginning of the pandemic, when effective vaccines have not yet been developed. The time interval analyzed is a year and a half from the beginning of 2020 to the summer of 2021. During this period, the spread of the disease was not yet significantly affected by the uneven vaccination process of the global population, and the external environment at that time was roughly the same throughout the world in terms of the lack of effective means to counteract the spread of the coronavirus. Based on open-source data on pandemic spread statistics by country (incidence, cure, mortality), applied statistics and data mining techniques identified groups of countries with different spread of the disease. Relative values of indicators, scaled to population size, and the dynamics of their change were analyzed. Estimates were made of the relationships between country-specific pandemic indicators and key demographic and socioeconomic indicators for these countries. These results may be useful for understanding the peculiarities of viral infections spread in different countries and regions of the world in the absence of effective countermeasures.
Thermal Conductivity of a Gravel Layer of a Road
Authors: Galkin Aleksandr , Pankov Vladimir , Zhirkova Elizaveta
Published: February 2023

Thermal resistance of the structural layers of a road is one of the important parameters that determine the choice of technical solutions of road design in the permafrost area. The purpose of this research is a quantitative assessment of the influence of the extent to which the pores in a gravel bedding are filled with ice or sand on the thermal conductivity of an ice-gravel or sand-gravel mixture. Lichtenecker formula was used to calculate the thermal conductivity coefficient of a three-component mixture. Different levels of ice content and moisture levels ofthe sand in the pores were considered. It was shown that the thermal resistance of the road structure can change significantly depending on the choice of the filler material. This allows to regulate the thermal regime of the road without adding new structural layers. The results of the calculations are presented as 2D and 3D charts to assess the influence of the filler material and the extent to which the pores are filled on the thermal conductivity coefficient of the mixture. The charts allow to see the possible changes in thermal conductivity coefficient of the structure and make a correct decision regarding the technologies to be used in construction. For example, to decide on the necessity to use a special thermal protection layer in the road structure.
Study of regional agricultural production using multivariate analysis techniques
Authors: Salimova Guzel , Zalilova Zariya , Lukyanova Milyausha
Published: February 2023

The article substantiates the application of the cluster analysis method on empirical data. A system of indicators of agricultural production has been designed. A multidimensional grouping by the method of cluster analysis was carried out, the regions were grouped into clusters according to the level of resource provision in the industry, the effectiveness and efficiency of production, its technical, scientific potential and support. The characteristics of each cluster are given, the main strengths and weaknesses of the agriculture of the regions are shown according to the selected indicators. Practical recommendations have been developed for the regions of each cluster, which will allow using the totality of available resources, conditions and factors to increase the efficiency and sustainability of production in addition to increasing its social and environmental orientation. Cluster analysis made it possible to implement a systematic approach to the study of agricultural production, to equally take into account various indicators, to lay dynamic changes in a spatial study. A drawback of the study is the limited data and access to information. Some aspects of the organization and management of production are briefly described.
Longitudinal and transverse oscillations of the impact device tool under impulsive loads
Authors: Slidenko Alexander , Slidenko Viktor
Published: February 2023

The destruction process of the rock by the tool of the impact device occurs with an impulsive load on the tool from the recoil reaction from the side of the rock, not only in the axial, but also in the transverse direction. A model of the tool part of the impact device is considered, which takes into account the transverse and longitudinal tool oscillations. The tool model has the form of a rod for longitudinal loading and a beam of constant cross section for transverse loading. Transverse and longitudinal oscillations of the tool sections are considered independent. When calculating transverse oscillations, the tool is considered as a cantilever beam with a rigid mount at one end. The calculation scheme of longitudinal oscillations is represented by a rod with reduced elastic resistance at the end. Impulsive loads are modeled by the initial velocity distribution on the contact part of the tool. The initial-boundary value problem with wave equations of the second and fourth orders is formulated. The solution of the initial-boundary value problem by the Fourier method, realized in the Mathcad system, is proposed.
Effect of coating on steel mechanical properties
Authors: Pachurin German , Kuzmin Alexander , Mochalina Mariia , Nuzhdina Tatiana , Smirnova Zhanna , Chaykina Zhanna
Published: February 2023

To ensure the required performance characteristics of metalware, various types of 3D and surface process treatment methods are used in the industry. In order to ensure the required durability of parts under a high-load operation, various protective coatings are widely used in practice. However, most of these have significant disadvantages, manifested, for example, in the complexity of the technological process, high porosity of the coating, low mechanical properties, which restrict the scope of their application. The paper presents the results of the analysis of existing production methods for applying of metal coatings. Their advantages, disadvantages and influence on the performance characteristics of metal structures are provided herein. The most popular way to protect ferrous metals against atmospheric, soil and water corrosion is galvanizing. At the same time, regardless of their effect on the endurance of smooth samples, the endurance limit of the samples with stress concentrators increases. The corrosion resistance of steels is increased by many types of diffusion saturation (chrome plating, galvanizing, etc.); however, there are no data on the optimal values of the coating thickness. Limited theoretical and experimental data make it difficult to predict the physical and mechanical characteristics of coated metals and alloys. In addition, as a rule, there is no systematic comparative analysis of the negative impact of metal coating technologies on the environment quality in the literature.
Adjusting the service frequency of hybrid vehicles based on the use of diagnostics tools
Authors: Oganisyan Arman , Koryagin Vladislav , Porokhnya Andrey
Published: February 2023

Currently, traditional internal combustion engine vehicles are be-ing replaced by hybrid vehicles, which are more advanced and energy effi-cient than the former. According to the current technical regulation on the safety of wheeled vehicles, a hybrid is a vehicle that combines two types of power units in its design: an internal combustion engine and an electric mo-tor. The main advantage of these vehicles is the combination of efficiency and environmental friendliness. The trend towards an increase in the pro-duction of cars with hybrid power plants is due to a fundamental increase in the requirements of international standards for environmental safety and ef-ficiency of cars. In the coming years, the number of brands of cars with hy-brid power plants offered to the consumer by European, Chinese, Japanese, Korean, as well as domestic automakers would significantly increase in Rus-sia. The lack of scientifically based approaches to the organization of maintenance and repair of vehicles with hybrid power plants leads to a de-crease in the efficiency of the technical operation of this type of vehicle. Hence, there is a need to organize the maintenance of vehicles with hybrid power plants based on the optimization of maintenance modes. The choice of topic is justified by the possibility of improving the efficiency of opera-tion of vehicles with hybrid power plants.
Theoretical substantiation of low-frequency shock-contact impact as a way to increase the efficiency of ultrasonic drilling of extraterrestrial soil
Authors: Golykh Roman , Khmelev Vladimir , Quan Qiquan , Barsukov Roman
Published: February 2023

A physical and mathematical model of ultrasonic destruction and deformation of solid soil has been developed, taking into account the presence of additional influences (low-frequency impact, rotational). The numerical implementation of the model is carried out in the form of a computer program for calculating the process of deformation and destruction of the soil. The presented results of calculations proved the possibility of additionally increasing the efficiency of ultrasonic drilling by more than 2.5 times due to the imposition of low-frequency shock-contact action.
Casting technology with the formation of a uniform fine-grained metal structure
Authors: Korolev Albert , Okhlupin Dmitry
Published: February 2023

The paper is devoted to the development of vacuum casting technology, which ensures the formation of a casting with a uniform fine-grained metal structure. This effect is achieved by the slow filling of the cooled cavity of the mold with a cooling liquid due to the difference in the flow rate of the liquid at the inlet and outlet. At each moment of time, the cooling of metal is carried out in a thin layer of the casting, which ensures the uniformity and fine-grained structure of the casting material, the absence of shrinkage and internal stresses.
The use of information technologies for the research and modernization of the separation of grain raw materials
Authors: Fedotov Vitaly , Malyshev Semen
Published: February 2023

The article presents algorithms for the operation of an information and measurement system describing the technology of grinding wheat grain. The properties of grain processing products are determined by the influence of natural and climatic factors, and in addition by the method of grinding. The spread of information technologies has made it possible to improve the existing algorithms of information and measurement systems for wheat processing, as well as to form new processing methods due to a more accurate assessment of grain properties. Various wheat varieties were studied, trial grinds of which were produced at a laboratory mill. The increase in the output of industry enterprises is ensured by heuristic selection of the most accurate operating mode of separators of various types. Empirical models serve the purpose of predicting the quality indicators of grain mass after its separation. Digitalization of the grain industry has made it possible to improve the accuracy of granulometric analysis in the field of grain particle classification by shape and size. Artificial neural networks and technical vision algorithms as part of an intelligent system were used to process the appearance of grain after grinding. Appropriate software has been developed for this purpose. To divide wheat into classes, it is proposed to use grain hardness indicators. A systematic approach was used to detect and distribute grain particles after grinding according to geometric characteristics. A brief description of the algorithm of operation of such a system consists in finding the contours of crushed grain particles and measuring their size and shape. The accuracy of using such an intelligent system when measuring grain hardness in comparison with traditional methods, as experiments have shown, is less than 3.5%. The introduction of such intelligent systems at industrial facilities of the food industry will improve the quality of the enterprise and the output of finished products.
Structure and trends of the IT services market
Authors: Sushko Olga , Plastinin Alexandr , Skvortsov Dmitry
Published: February 2023

The negative situation revealed promising directions for the development of various segments of IT services, and entrepreneurs received a driver for development in the form of new information technologies. In modern conditions, the IT market is developing much more dynamically than most industries. Together with fundamental factors, the development of the IT services market is accelerated by current socio-economic processes. So the pandemic for three years provokes stagnation in many industries and sectors of the economy, but at the same time activates the development of new IT. The object of this study is the dynamics and prospects of the Russian IT services market. The main purpose of the article is to analyze the current state of the IT services market, assess the risks and potential development opportunities. The article presents the results of a statistical analysis of the time series of the IT services market, some data from an econometric analysis. The results of a correlation-regression analysis to determine the relationship between GDP and the IT services market, calculations of correlation coefficients, elasticity and β-coefficient are presented. Preliminary calculations of predictive dynamics of the IT services market are given. As a result of the analysis, potential opportunities and threats for forecasting are identified, which are required in the subsequent integrated forecasting model and structural modeling using discrete mathematics.