bluuebunny/crossref_metadata_2025 huggingface dataset:
Study of diffusion processes in contact areas of thermocouples with metals
Authors: Onarkulov K. , Azimov T.
Published: March 2023

Diffusion processes on the contact areas of the metal-solder-semiconductor system are experimentally studied in this work. Diffusion coefficients, activation energies and pre-exponential factors in samples commutated with solders based on Pb-Sb are determined. It has been established that lead-based solder has a significantly higher inertness to thermoelectric materials. Humans are currently facing complex challenges such as rising energy costs, pollution and global warming. To reduce their consequences, scientists are concentrating on improving power generators focused on energy harvesting. Thermoelectric generators (TEGs) have demonstrated their ability to convert thermal energy directly into electricity through the Seebeck effect. Due to the unique advantages, they present, thermoelectric systems have emerged over the past decade as a promising alternative among other technologies for the production of clean energy. [1-11]. Switching is the most time-consuming and responsible operation in the manufacture of thermoelectric modules. In them, which include a significant number of junctions, failures most often occur due to broken contacts [2-8]. To prevent the harmful effects of internal mechanical stresses, in the manufacture of thermoelectric batteries, it is necessary to use a damping layer between the branch and the connecting plate [3-14]. The damping layer is made of a material with sufficient plasticity and low ohmic resistance. It is usually made from lead. The results of the research showed the advantages of using a single -wire technology for soldering with Pb - Sb eutectic solder using an anti -diffusion layer of chemically deposited nickel. In this case, the eutectic solder Pb - Sb in the contact simultaneously performs the role of a damper and a switching solder.
Combining non-seismic and seismic information for geological understanding - a case study
Authors: Senchina Natalia , Grigoriev Gleb , Gulin Vladimir
Published: March 2023

Non-seismic methods such as gravity and magnetic prospecting can provide valuable complementary information in oil and gas exploration in complex with seismic data. The integration of seismic and non-seismic research has become increasingly important in recent years due to advancements in technology and the use of artificial intelligence. The integration of these methods allows for a more comprehensive understanding of the subsurface and can improve the accuracy of predictions. Three examples highlight the potential benefits of integrating potential field data into the seismic interpretation process, including improved accuracy in predicting structural surfaces, the ability to predict discontinuous disturbances, and the ability to restore the depth-velocity model are given. The potential benefits of integrating, particularly in the context of sites located in Siberia, are pointed.
The process of heat exchange of steam-water flow in a geothermal pipe of a vertical well
Authors: Kanareykin Aleksandr
Published: March 2023

The main purpose of the work is mathematical modelling of heat exchange of steam-water flow in a geothermal pipe of a vertical well. Within the framework of the hydraulic approximation, a numerical study of the steady isothermal motion of a thermodynamically equilibrium steam-water mixture in a vertical well has been carried out, taking into account heat losses into the surrounding rocks. In this task, the process of coolant movement along the borehole and its thermal interaction with its wall is considered. Because of the implementation of the described model, the values of specific heat losses in the rock mass for various initial conditions for wells were obtained.
Simulation of the ball lightning temperature field
Authors: Kanareykin Aleksandr
Published: March 2023

The article is devoted to such a natural phenomenon as ball lightning. The relevance of the work is due to the fact that the phenomenon itself is widespread, but in itself has not been sufficiently studied. In it, the ball lightning is considered as a plasma ball. The main purpose of the work is mathematical modeling of the lightning temperature field taking into account radiation heat transfer. Based on the obtained result, an analysis of the behavior of the temperature field was carried out.
Synthesis and colloidal-chemical properties of manganese dioxide hydrosols synthesized in the presence of sodium thiosulfate
Authors: Ko Zaw Aung , Yarovaya O. , Htet Lin Nyan , Donina M.
Published: March 2023

In this paper, the possibility of obtaining manganese dioxide hydrosols by condensation in the presence of sodium thiosulfate is considered. The main properties of hydrosols, including particle size and shape, phase composition, electrophoretic mobility, and the pH range of the dispersion medium in which sols are aggregatively stable, are determined. The sol coagulation thresholds in the presence of potassium chloride, sodium sulfate, and potassium sulfate were determined. It was found that the hydrosols coagulation is reversible. The nature of the aggregative stability of obtained manganese dioxide sols is discussed.
Predictive modeling of wave hydrodynamics and relief formation in the presence of multi-scale turbulent exchange
Authors: Protsenko E. , Sukhinov A. , Protsenko S.
Published: March 2023

Introduction. Reliable prediction of indicators of turbulent flows is a very difficult task, which is explained by the exceptional physical complexity of turbulence, in particular its probabilistic nature, a wide space-time spectrum and a fundamentally three-dimensional non-stationary nature. Despite conducting a wide range of studies focused on the problem under consideration, they did not fully reflect the totality of various factors and processes affecting the structure and parameters of vertical turbulent mixing. Materials and methods. The article is devoted to the study of spatial- three-dimensional wave processes in shallow water bodies, taking into account the features of turbulent exchange depending on the source and localization in the column of liquid, as well as the study of the influence of regular wave processes on turbulent exchange and vertically using a mathematical model of wave processes based on the system of Navier-Stokes equations, including three equations of motion in the with dynamically changing geometry of the computational domain. Results. Based on the developed software package, a scenario of changes in hydrodynamic wave processes of the coastal zone is constructed. Discussions and conclusions. The separation of the wave flow into a near-surface macroturbulent layer caused by wave motion and a lower layer with background hydrodynamic turbulence is proved, the strength and intensity of turbulence changed synchronously with wave oscillations, demonstrating a pronounced asymmetry of turbulence generation throughout the water column.
Ability to use available electronic resources for modeling the development of forest fires
Authors: Sushko Elena , Ivanova Irina , Kargashilov Dmitry , Manukhina Lyubov
Published: March 2023

The article discusses various types of monitoring of forest fires, studied and analyzed satellites that are used by the space monitoring system of the Ministry of Emergency Situations of Russia for remote sensing of the Earth. The statistical data of the Forestry Department on forest fires over the past 15 years in the territory of the Voronezh region are given. The dependence of the number of forest fires on meteorological conditions, in particular on the amount of precipitation, wind gusts and air temperature, was studied using the example of 2010 and 2020. The municipalities that are most prone to forest fires are identified. The monitoring systems of the forest fire situation on the territory of the Voronezh region, which are used in the crisis management center of the Main Directorate of the Ministry of Emergency Situations of Russia for the Voronezh region, are analyzed. The program "Forest Fires" has also been developed to predict the spread of forest fires based on the Methodology for assessing the consequences of forest fires, developed by the All-Russian Research Institute of Civil Defense and Emergency Situations in 1994 and put into effect by the order of the Ministry of Emergency Situations of Russia dated 14.04.1995. No. 194. A comparative analysis of the solution of the same problem with the same initial data in the developed program "Forest Fires" and in the risk analysis and management system (SAUR) of the automated information control system of the unified state system for the prevention and elimination of emergencies (AIUS RSChS) is presented.
Complex of programs for studying magnetic fields of magnetostriction level converters
Authors: Karpukhin E.V. , Bormotov A.N.
Published: March 2023

They provided the description of a complex of programs developed by the authors that implements an effective numerical method to calculate the magnetic fields of magnetostrictive level converters (MLC) of the applied type. Mathematical modeling of the MLC was carried out with its help. For this purpose, it is proposed to obtain a mathematical model of magnetic fields MLG of an overhead or submerged type on a type on ultrasonic waves of torsion by means of a numerical solution of integral equations. This generalizes the solution of the problem for any computational domain and provides a minimal approximation error. A method is also given to increase the efficiency of the calculation by using more complex schemes of difference approximation. The results can be used to optimize the designs of existing applied MLCs. We can conclude that the continuous dependences of the strength of the magnetic field of a permanent magnet on the width of the non-magnetic wall of the reservoir obtained with the help of the developed software package "Applied MLC" provide an opportunity to choose its minimum required value.
Dynamic behavior of earth dams under different kinematic impacts
Authors: Mirsaidov M.M. , Toshmatov E.S.
Published: March 2023

The paper provides a detailed analysis of the current state of the problem. A mathematical model is presented to determine the dynamic behavior of earth dams, considering the viscoelastic properties of soil, using the hereditary Boltzmann-Volterra theory with the A.R. Rzhanitsyn kernel under periodic kinematic impacts. To solve the problems considered, the finite element method and complex arithmetics were used to reduce integrodifferential equations to a high-order complex algebraic equation. The accuracy of the methods was verified by solving test problems. Steadystate forced vibrations of the Pskem earth dam 195 m high are studied considering the real geometry and soil properties under resonant vibration modes. It was stated that the largest stress amplitudes in the body of the dam occur not only under the first resonance, but they can occur under other dense spectra of the eigenfrequencies of the dam, due to the interaction between close natural modes of vibration. The strength of various sections of the dam body was tested under kinematic impact using the Coulomb- Mohr theory of strength; the most dangerous sections of the dam were identified in terms of the highest stress.
Fire risks in electrical installations: the review
Authors: Santhosh Kumar K.S. , Balachander K.
Published: March 2023

In India, fire poses a significant risk to a variety of industries. Media outlets across the nation report on fires virtually every day. Not only these fires result in the loss of numerous lives and injury to a large number of people, but they also caused extensive property damage. During the past two decades, India's construction industry has flourished, notably for highrise structures. As a result of their special character, fires in residential structures, particularly high-rise buildings, become more complicated and salvaging activities more difficult, sometimes resulting in a large number of fatalities and substantial property losses. The scenario has become more complex due to the fast modernization of Indian industry. A fire is a mishap may at times result in loss of life and property. We have strong regulatory measures, standards, good material specifications and national building construction codes. However, we are facing fire accidents on regular basis. After the investigation fire authorities are concluded that 80% of fire accidents happened due to electric short-circuits. Fire safety norms mandated by National Building code (Ref Indian National Building code 2016 part 4) is not given any significance of fire loads related to electrical installation and its components. More over National building code given lesser importance to the quality aspects of materials and components which can play a significance role of origination of fire accidents. The National building code considering only fire load related to cable and insulation failures. During my recent survey and analysis of few fire accidents pointing out that the failure in the electrical components and equipment’s are related to the appliances are the major cause of fire. This review intends to understand the gap in the existing system and extend to further studies to find out a proper solution.
A interval valued intuitionistic fuzzy multi criteria decision making
Authors: Ranjithkumar M. Arockia , Boobalan J. , Atlas L. Godlin , Sudhakar P. , Senthil Kumar R.
Published: March 2023

The limitations and disadvantages of the available intuitionistic fuzzy set scoring functions are investigated. Two improved methods for handling multi-criteria fuzzy decision-making problems are provided. They are based on the two theories of intuitionistic fuzzy set and cross entropy, with the adoption of cross entropy of the degree of membership from the degree of non-membership handling the effect of hesitancy degree. Score function method and weighted score function method are their names. This study presents and investigates a novel strategy for ranking interval-valued intuitionistic fuzzy sets. Examples using numbers are used to demonstrate the technique.
Development of agricultural crop monitoring software
Authors: Ruzmetov Kudrat , Safarov Oybek , Avazov Bekzod , Rahimboyev Mukhtorbek
Published: March 2023

The operation of Bradley's algorithm is simple. After that, we divide the image into several areas alongside d, take the average value of the sum of the values of Im pixels in this area, add the value, and compare the value of each pixel with the obtained result. 1/8 of the image width and 15% of the average pixel brightness across the area. In general, both of these parameters can and should be changed according to the specific situation. Thus, if the size of the object is larger than the area of a square with a side equal to d, then the center of this object can be taken as the background by the algorithm, and the problem is solved by reducing the value of d, but fine details of the image may be lost. This article provides an overview of some research and image processing analysis on the problem of crop and vegetation image recognition. Remote identification of crops and plants and their cultivation, assessment of horticulture status startup projects are presented. A computer vision system for obtaining images from a drone and assessing the condition of a garden is provided. Digitization methods for data processing are considered.
Prospects of changes in the productivity of fruit garden and vegetable crops due to modernization of the fruit and vegetable network
Authors: Achilov Mashrab , Rafikov Rustamjon
Published: March 2023

Forecasting the productivity of fruit and vegetable crops requires taking into account the specific characteristics and indicators of the field. However, it should not be forgotten that the production of fruit orchards is mainly done by perennial plants, while vegetable crops are mainly one-year plants. In our opinion, several factors should be taken into account in order to forecast the yield of fruit and vegetable crops, and we used the method of multifactorial regression analysis to determine the relationship. By finding a solution to this problem in the course of the research, it was determined the interrelationship of several factors related to the modernization of production, which affect the level of productivity in vegetable cultivation. The article analyzes the role of fruits and vegetables in ensuring food security of the country, its importance in the life of people and the state of cultivation today. At the same time, the beneficial properties of grown products for the human body were analyzed, their differences from fruits and vegetable products grown in other countries
Distribution and harmful root decay of wheat
Authors: Khakimova Nigora , Sattarova Rano
Published: March 2023

Root decay is a disease of the roots and basal part of the stems of wheat, caused by one species or a complex of species of semi-parasitic fungi. This article presents the results of a survey of wheat crops in the conditions of irrigated agriculture in the farms of the Tashkent region in Uzbekistan. It has been established that wheat root decay is ubiquitous and varies from 20.8-60.8%. This disease reaches its greatest development in the seedling phase. The intensiv? variety was the most affected by root decay. The harmfulness of root decay is manifested in the shortening of the length of the stem, a decrease in the number of grains per ear, and the deterioration of the sowing qualities of seeds. The manifestation of root decay is affected by temperature, humidity and wheat precursors. It has been established that infection of plants occurs at a moisture content of 40% of the total moisture capacity. The most favorable effect on limiting the disease is provided by such a precursor as alfalfa.
Determination of distribution areas and reserves for state accounting of Tajik Kavrak (Ferula Tadshikorum Pimenov) resources in the flora of Surkhandarya and Kashkadarya provinces, Uzbekistan
Authors: Urinova Adolat , Tulaev Jurabek , Choriev Bobur
Published: March 2023

During the 1970s and 1980s, the chemical composition of more than 50 species found in Central Asia was studied, and about 250 terpenoid substances were isolated from them. Due to the growth of the species in various ecological conditions, about 40 species are also of great importance as fodder plants. This article presents the results of our research aimed at accounting for the natural resources of tajik kavrak (Ferula tadshikorum Pimenov) in Surxondary and Kashkadarya, the southern regions of the Republic of Uzbekistan. By reading the article, you can find out the distribution of tajik kavrak. During the last 20 years in Uzbekistan, the process of collecting Tajik kavrak sap by people has been intensively carried out in the southern regions of the republic, namely Kashkadarya and Surkhandarya provinces, which are the main distribution area of the plant. Unwise use of the plant's natural resources led to the threat of complete extinction of its current natural distribution areas, which, in turn, led to the inclusion of Ferula tadshikorum Pimenov species in the next edition of the "Red Book" of the Republic of Uzbekistan (2019) with the 3rd status.
Effect of disinfectants on hatchability and safety of ducklings
Authors: Kim Natalya , Prikhodko Anna , Podvalova Viktoria , Yankina Olga , Chugaeva Natalya
Published: March 2023

High contamination of incubation eggs of waterfowl and, as a consequence, penetration of microorganisms through the shell leads to embryonic mortality, poults weakness, high mortality in the first day of life, so it is important to sanitize eggs immediately after their collection. This article presents the results of using 1.6% hydrogen peroxide solution as a disinfectant for treating incubation duck eggs. The results of microbiological research of washes from the surface of incubation duck eggs, setter air, otoscopy, hatchability and safety of day-old growing are also reflected. During the study, it was found that pre-hatching treatment of duck eggs with 1.6% hydrogen peroxide solution reduced the degree of contamination on the shell surface, hatchability of eggs in the experimental group was higher by 3.1% than in the control group, safety - by 3.6%, respectively.
Innovative approaches in the field of meat production
Authors: Allahverdiyev Elnur
Published: March 2023

In modern times, the use of some technological equipment (artificial meat, proteins of various insects) is important to meet the demand for meat products. Effective use of interactive technologies, along with the process of disposal of waste products in the meat industry, is preparing a solid foundation for the meat industry. Efficient use of resources, ecologically clean product, and canning process create a foundation for continuous innovative development of the industry. Artificial meat is playing the role of promising food for the future, but there are health effects of artificial meat. The use of insect proteins along with meat analogues creates alternative solutions to the problems that will arise in this field. Since researches on the meat industry are a minority in modern times, the article can be considered relevant.
The results of growing meat bulls
Authors: Sinelshchikova Irina , Golovko Elena , Zabashta Nikolay , Arakcheeva Elena
Published: March 2023

The article presents the results of a scientific and economic experiment to assess the meat productivity of Kazakh white-headed bulls in the conditions of Southern Russia. he fattening of the bulls lasted until the age of 15 months. During the fattening period, the animals of the experimental group surpassed the peers of the control group according to indicators of meat productivity. By changing the conditions of feeding and keeping calves at different age stages of their development, a person forms in them those vital functions, organs and tissues that most contribute to ultimately obtaining the greatest amount of high quality milk and meat productivity in adulthood. The paper presents the results of growing bulls of the Kazakh white-headed breed up to 15 months of age using the probiotic Prolaxim-V feed additive to obtain meat raw materials that meet the requirements for the production of food for children of early age. The use of a probiotic feed additive made it possible to increase the live weight by the end of the experiment by 8.65% (P < 0.01), the slaughter yield by 1.95 absolute percent, and reduce the incidence rate of the gastrointestinal tract.
Problems of developing a culture of treatment of intestinal infections in Tselinograd in the 1970s
Authors: Usupova Cholpon , Satybaldieva Rakhat , Omarova Bibizhamal , Kamzayev Bekzhan , Mazhitova Zhanna
Published: March 2023

The paper notes that after the establishment of the Virgin Lands area, specialists from all republics of the former Soviet Union came to the reclamation of virgin lands. Intestinal diseases, like other infectious diseases, were widespread among the local and arriving population. The authors have shown that large epidemic outbreaks of intestinal infections were possible in organized and unorganized collectives of residents of Tselinograd in case of violation of sanitary and hygienic regulations. Attempts, made by the city’s health authorities, did not always lead to an improvement in the quality of medical care. The authors emphasize that the shortage of specialists and healthcare institutions, violation of the treatment regimen, and other reasons influenced the deterioration of the epidemiological situation. The authors pay attention to the main directions and specific actions of the city administration to carry out epidemic control measures on the example of the sanitary service of Tselinograd during the difficult period of reclamation of virgin lands in Kazakhstan in the 1970s.
Nomadic camp as an innovative way to preserve national identity
Authors: Sleptsov Yury , Neustroeva Anna , Shergina Tuyaara , Kozhurova Anna , Permyakova Anna , Alexeev Maxim
Published: March 2023

The article considers the process of introducing new forms of temporary children's associations during summer vacation days for children from indigenous peoples of the north, the Even people, which implies an ecological expedition of children from the Moma ulus of the Republic of Sakha (Yakutia) to study the ecology of Moma National Park, the Even language, culture and traditional industries of small peoples of the north. The work experience from 2000 to 2021 showed that a similar model of a nomadic ethno-ecological camp can be applied by the Nomads of the North. The Ewens, by their lifestyle, eternal nomads living in extreme conditions, are very protective of the environment, they are suited like no other to nature conservation activities, namely to work in the Moma National Nature Park. Therefore, in addition to environmental education, methods and technologies of folk pedagogy were used during the work, through which children learned and mastered the Even language and culture, were immersed in authentic forms of life and traditional economic activities: domestic reindeer breeding, hunting and fishing, national sewing, as well as customs and rituals, folk dances and games. Today, the pupils of the nomadic camp work successfully in the sphere of protection of nature, as well as in the national economy, including teachers of their native language and national culture. The experience of the temporary youth association has attracted the interest of many specialists, for example scientists from the United States of America who developed the "Deer Trail" project; also, many regions of the Russian Federation have introduced summer camps into educational practise in accordance with their requirements and possibilities.
Mordovia State Nature Reserve as a hotspot of invertebrate biodiversity (European Russia)
Authors: Ruchin Alexander
Published: March 2023

To study and conserve biological diversity is one of the most important tasks of protecting natural ecosystems. According to long-term data, the biodiversity of invertebrates of Mordovia State Nature Reserve accounts for 6823 species out of 10 types of invertebrates: Rhizopoda (58 species), Porifera (1), Platyhelminthes (156), Nematoda (67), Annelida (4), Acanthocephala (1), Mollusca (62), Bryozoa (1), Rotifera (80), and Arthropoda (6393). Thus, the Mordovia State Nature Reserve belongs to one of the hotspots of biodiversity in the forests of the temperate zone in European Russia. It is home to a large number of rare species and three endemic species. The protected area is connected by ecological corridors with other territories and can be a source of genetic and species diversity for nearby ecosystems.
Ractal structures in architectural design
Authors: Tkachuk Angelina , Panfilov Dmitriy , Artyschenko Stepan , Chigarev Anton
Published: March 2023

The high rate of urbanization in the modern world requires a conscious approach to architectural design. A person needs an environment that fills him with new strength and does not drown out his creative potential with monotonous routine. Due to its natural feature, fractal architecture meets these requirements. The article examines the signs of fractal systems in relation to architecture, highlights the concept - "the principle of fragmentation of a fractal", the term "self-similarity" is broader. In addition, the existing experience of fractal architecture has been analyzed, and the relationship between fractality and the success of the project has been revealed using the example of existing objects. The materials of this article can serve for the further development of the theory of creating fractal architecture.
Expanded obsidian as composite material for light concretes
Authors: Paytyan T. , Sargsyan T. , Kalantaryan M.
Published: March 2023

Creation of composite building materials is a way of improvement of certain properties compared with such properties of source components as mechanical, physical, heat-insulating, acoustic, and in addition chemical stability, life span etc., or materials prime cost reduction, including at the expense of various waste utilization. In this connection, there is a lively interest in heat-insulating and acoustic insulation materials. In creating such materials the problem lies in an optimal solution concerning the choice of a light aggregate, binder and the simplest manufacturing technique for products of quite various shape and size. The advantage of a porous composite material is in unique combination of heat-insulating and structural properties and puts it on the same level with durable building materials designed for the same application. Many man-made formations, in particular solid waste, are valuable technological raw materials and can be involved in technological redistribution in order to obtain new composite building materials. In the production of crushed stone, sands from lithoid pumice and perlite, it is advisable to make the separation and separate obsidian. In this case, the separated obsidian turns into a production waste. Expansion of obsidian will make it possible to obtain a superlight large porous material and thereby solve environmental issues - to utilize production wastes. Concretes, produced using expanded obsidian, are of strength class B 12,5 and average density 1150-1200kg/m3 can be called structural and superlight concretes based on expanded obsidians. Heat conductivity factor of such concretes of 400-1200 kg/m3 average density varies from 0.125 to 0.35W/m0K.
Verification of compliance with the requirements of the norms for the internal microclimate of a corner room
Authors: Malyavina Elena , Landyrev Sergey
Published: March 2023

The article considers the buildings of the transport infrastructure that provides services to transport workers, e.g. medical and preventive, children's educational and educative institutions. The resistance to heat transfer of the windows was not increased for such buildings at the last change in the norms of thermal protection in the Russian Federation in 2018. In this regard, it is important to check compliance with the requirements of regulatory documents for radiation temperature and asymmetry of the radiation temperature at the boundary of the serviced area of the premises of such buildings. A literary review has shown that much attention is paid to these parameters in the world. Since the heat transfer resistance of the windows is much less than that of the outer walls, the influence of the outside air temperature on the temperature of the inner surface of the window is much greater than that of the walls. The proposed article considers a corner room of an intermediate floor with windows in the outer walls, occupying 35% of the area of the external enclosing structures, in Belgorod. The building is serviced by air heating. A comparison of the radiation temperature and the asymmetry of the radiation temperature with the same indicators in the ordinary room considered earlier showed that with windows of the specified size, the influence of the second window significantly reduces the radiation temperature and increases the values of the local asymmetry of the radiation temperature. At the same time, during the estimated winter period, not only optimal, but also permissible requirements of the regulatory document are not met at the border of the serviced area of the premises.
Checking the parameters of the internal environment by calculated simulation of measurements with a ball thermometer
Authors: Malyavina Elena , Landyrev Sergey
Published: March 2023

According to the regulatory documents in force in the Russian Federation, the measurement of the normalized indoor environment indicators should be carried out with a ball thermometer. These norms also apply to the premises of the transport infrastructure buildings. In this paper, the values of the radiation temperature tr and the local asymmetry of the radiation temperature dtr as to the ball thermometer have been estimated by calculation. An ordinary room of an intermediate floor with a window in the outer wall with a width of 3.8 m and a height of 1.8 m, the bottom of which is located at a height of 1 m from the floor, in Belgorod, has been subject to consideration. The room is provided by an air heating. The values of the asymmetry of the radiation temperature at the boundary of the serviced area of the room, that is, at a distance of 0.5 m from the outer wall, at a height of 1.7 m and 1.1 m from the floor in the calculated winter conditions exceed the optimal ranges limited by norms. It is shown that with an increase in the resulting room temperature, the values of the radiation temperature asymmetry also increase. The presented distributions of the radiation temperature over the volume of the room indicate that in the calculated winter conditions, the optimal requirements for tr values are not met at the same heights of 1.7 m and 1.1 m from the floor. Acceptable conditions meet the requirements of the norms.
Methodology for the selection of the composition for the production of products of hard-pressed concrete with industrial wastes
Authors: Lotoshnikova Yelizaveta , Yavruyan Khungianos , Edilyan Spartak , Gaishun Alexei
Published: March 2023

The article presents a method of designing and assigning the composition of the molding sand, which is based on the calculation and experimental approach to determining the composition, taking into account the quality of raw materials used and the requirements for the properties of the concrete produced products. The main technical characteristics of smallsize rigidly pressed products and requirements to them are given. The methodology of selecting the composition of the molding sand is discussed in detail. The method of nominal composition of molding sand is developed and presented in the form of flowchart. A step-by-step description of the flowchart is presented. Low water-consumption binder, man-made wastes - ash microspheres as a damping additive, traditional coarse and fine aggregates are used as raw materials. To determine the physical and mechanical properties of concrete in the products were tested for compliance with the requirements of regulatory documents. When carrying out researches, there were used generally accepted rules of evaluation of geometric sizes and indices of outer appearance of products, average density, water absorption and strength properties of concrete, abrasion of face layer surface of products, rules of assignment of requirements to frost resistance. Production of products according to the proposed composition and the recommended method of calculation of the molding sand will contribute to environmental protection, since the production waste is used in their manufacture.
Problems of technological regulation of objects of negative impact on the environment in urban development
Authors: Popkov A.
Published: March 2023

The article discusses the problems of the development of technological regulation of objects that have a negative impact on the environment in urban planning in the Russian Federation. On the one hand, the measures taken in this area are aimed at improving the regulation system in the field of environmental protection in general and reducing the technogenic load on the Russian regions, and on the other, at increasing the efficiency and competitive ability of Russian enterprises.
Regional aspects of investment policy in construction
Authors: Soloviev Vyacheslav , Korchagin Alexey , Miller Viktor
Published: March 2023

The article presents the results of the analysis of the problems of regional investment in terms of determining the volume of investment costs in capital construction projects. The purpose of the study is to determine the relationship of the state's pricing policy in the construction industry to the process of allocating investments for the construction of infrastructure facilities in the regional context. The signs of uneven possibilities of budgets of different regions are highlighted. Pricing factors for construction products, in particular, due to the regulatory framework, are identified as local reasons for differences in capabilities. The types of construction objects with characteristic qualities for carrying out such an analysis are determined. Research methods are based on a piecemeal comparison of linear models of direct costs and cost conversion indices in territorial standards. Differentiation of state pricing standards is considered on the example of special types of work in the construction of urban infrastructure facilities. The estimation of the difference in the cost indicators of territorial standards is used in the assessment of the investment potential of the region. The results obtained show a multiple difference in the cost of construction resources in neighboring regions without proper justification. This makes it possible to determine the volume and cost parameters of construction projects, the creation of which is possible within the framework of the current regional budget. The proposed three-dimensional model of the timing, cost and risks of the project provides grounds for calculating the qualitative indicator when choosing objects of investment programs of the regions. It is concluded that there is a need to move from a system of loosely interconnected territorial and sectoral budget and regulatory bases to a unified information environment.
Logistics and maintenance support for vehicles in the agro-industrial complex
Authors: Masaleva Maria , Nabiullina Victoria
Published: March 2023

The approach of logistics support of agro-industrial complexes with agricultural machinery and technical means for their maintenance in the planning of tender procurement procedures is considered. The proposed approach is based on the structure of the resource support of the agro-industrial complex, which is a complex organizational system. In the described structure of resources, a block of logistics support for vehicles and the material and technical resources necessary for its maintenance, the presence of which is important for solving functional and production problems, is singled out. On the basis of ongoing research, a cause-and-effect diagram has been developed with the definition of the most significant problems affecting the management of transport provision in agro-industrial complexes. A methodology for the expert assessment of the most demanded types of resources is proposed and described in order to optimize the spending of financial resources and increase the level of logistics support. The study of the approach under consideration is reduced to improving the procedure for planning tender purchases by developing and applying a model for determining and substantiating technical resources that are the most in demand for fulfilling the functional tasks of the agro-industrial complexes. As a result of the proposed model, the authors developed an algorithm for planning tenders, the practical application of which is based on achieving the objectives of the efficiency of spending financial resources and reducing the timing of tender procedures and their validity in terms of adequacy.
Outplacement: current practice of a responsible employer for transport and logistics companies
Authors: Kaloshina Tatiana , Galimova Anna
Published: March 2023

This article looks at the practice of outplacement, which is increasingly being used in transport and logistics companies. In today's environment, a person is dependent on employment. In the case of downsizing, a responsible employer must ensure that the employee leaves the company as gently as possible. Stress and psychological trauma for the employee must be avoided, as job loss affects the financial situation and mental state. Outplacement is important for employers to avoid employment disputes and the risk of damage to the company's reputation. In this article we looked at the practice of outplacement using a transport and logistics company as an example. In this article we consider outplacement as a systematic and responsible work to release personnel. Work which has no significant negative consequences for the company. Based on this analysis, the article presents the author's vision of the outplacement system in a transport and logistics company.
Risks of IT technology adoption
Authors: Belanova N.
Published: March 2023

Automation of technological processes and digitalisation of various spheres of the economy are among the key management tasks. The main threats and risks to development include cross-border threats and illegal use of information and telecommunication technologies, including computer attacks on the information infrastructure and means of communication. The primary task in solving problems of cyber security is introduction of domestic technologies and software products. In this article, we consider the risks of adopting new IT-technologies. Initially, the risks at each stage of project implementation and introduction of IT-technologies were identified, then the methodology of risk assessment was applied based on the determination of risk probability and degree of negative consequences realization (losses for the organization). Each risk was assessed taking into account two items. The first is the probability of risk occurrence. The second is the danger of risk or adverse consequences (losses) which arise at the organisation in case of its realisation. To determine the degree of risk of risks, 4 priority groups were allocated, the weighting values of the groups, and the risks were calculated. Subsequently, each risk was assessed and the risks of implementing new IT technologies were ranked. The research showed that the main risks of IT implementation include innovation risks, information security risks, risks connected with decrease of productivity and capacity of information systems, with changes in the project budget, miscalculations in selection of techniques, equipment, its installation, insufficient qualification of executors. The grouping of risks by stage of their occurrence showed that the risks increase and have the highest aggregate assessment at the stage of operation. Risks are managed throughout the life of the project, but the ability to manage risk decreases as the project progresses towards completion. Identifying, assessing and ranking risks is the basis for developing an effective risk management system
The Impact of lean supply chain strategy on consumers’ purchasing behavior: the case of dental hospitals
Authors: Basal Murat , Sarkbay Omer Faruk
Published: March 2023

The purpose of this research is to investigate the effects of the lean supply chain strategy on the purchasing behavior of consumers. Demographic questions, lean supply chain strategy scale and consumer purchasing behavior scale were used to collect the data of the research. The main body of the research consists of 30,584 patients hospitalized in private dental hospitals operating in the European side of Istanbul. In this context, the characteristics of the lean supply chain, known as optimizing and simplifying all supply chain processes, reducing waste and focusing on eliminating activities that do not add value, the features that affect the consumers, the effects of the brand on the consumer, the effect of the campaigns on the purchasing decisions of the consumers have been investigated. As a result of the regression analysis, it has been determined that the lean supply chain strategy has a positive effect on consumer purchasing behavior.
Tortious risk in the system of insurance relations in the Russian Federation
Authors: Dendiberya Maksim , Tishutina Olga
Published: March 2023

The paper deals with the problem of the realisation of tort risks in the system of insurance relations. At the same time, the object of consideration is a part of the tort risk of the underwriter, which is a consequence of the implementation of unfair economic and insurance practises. The purpose of the conducted research is to prove the necessity of managing tort risk in insurance to achieve the balance of economic (insurance) relations system between the insurant and the underwriter, which stipulates the performance of the risk and compensation insurance function. To achieve the purpose of the study, two key methods of scientific research are used, namely the method of analysis, which is used to study the impact of tort risk on the system of insurance relations, and the method of synthesis, which will assess key problems of managing its manifestations. The study has resulted in the substantiation of the need to accept tort risk as a risk that is an integral part of the risk management system of the insurance organisation; development of basic proposals in the direction of improving the current tort risk management system, both at the stage of its identification and at the stage of settlement of losses (the stage of realisation of the economic nature of tort risk in insurance). The study conducted has established the fact that the management of tort risk in insurance harmonizes the system of insurance relations, ensuring the implementation of the key principle of equivalence of obligations of the parties, making it possible to achieve a balanced insurance fund. Thus, the integration of tort risk into the general risk management system of the insurance organization allows us to increase both the profitability of insurance operations and the attractiveness of a non-material insurance product for the insured.
Regional mechanism for sustainable development
Authors: Vladyka M. , Averina S. , Tikunov D. , Serebrova T.
Published: March 2023

Technologization and resource consumption of modern regional production complexes actualizes the paradigm of their sustainable development. Ecosystem development of mesoterritoriums requires the use of integrated approaches, the creation of conditions and incentives. The concept of using an integrated mechanism to achieve sustainable development of the region as a technology for managing the territorial economy, focused on improving the efficiency of territorial production complexes, the implementation of priority areas in science, technology and critical technologies is put forward. The components of the management tools for the sustainable development of mesosystems are proposed, representing the internal structure and sequence of stages of interrelated directions of movement of the territorial economy to the desired state. This mechanism can be considered as a set of actions, the implementation of which will lead to socio-economic progress at a new level. A comprehensive regional mechanism of sustainable development is substantiated, which activates the process of economic and social changes in five directions: economic, spatial, social, digital and environmental, ensuring the implementation of the strategy of transformational processes. The proposed integrated regional mechanism of sustainable development can be applied at different levels of territorial management. In the conditions of modern realities of the implementation of the new regionalism, it is advisable to ensure stable trends in territorial development on the basis of platform and ecosystem approaches.