bluuebunny/crossref_metadata_2025 huggingface dataset:
Microbiome and its association with nutrient metabolism in farm animal nutrition
Authors: Grechkina V.V. , Sheida E.V. , Kvan O.V.
Published: October 2023

This article shows the effect of amino acid preparations on metabolism, nutrient digestibility, and calf development. Essential amino acid mixes in different concentrations (per 1 kg of feed) were introduced into the diet of calves from 9 to 18 months of age: I experimental group - 2 g of lysine + 2 g of methionine + 3 g of threonine + 1 g of tryptophan, II experimental group - 3 g of lysine + 3 g of methionine + 4 g threonine+2 g tryptophan. Calves were calculated on pure amino acids, in % of feed dry matter (per head per day). In calves of the II experimental group there was a significant increase in live weight by 11.7 % (p≤0.05) due to better utilisation of bacterial nitrogen by 8.3 % (p≤0.05), amino acids in duodenum by 3.46 % (p≤0.05) than in the I experimental group and by 8.83 % (p≤0.05) than in the control group. The growth rate of tissues and their protein composition changed with the growth of animals. The obtained data indicate the positive effect of a mixture of amino acids with a higher concentration in the diet of growing animals due to the enhancement of protein biosynthesis processes in muscle tissue. Thus, for improvement of intestinal microbiota, metabolism, digestive processes, and maintenance of calf health, the most comfortable concentration of amino acids was the ratio of 3 g lysine+3 g methionine+4 g threonine+2 g tryptophan. The higher the level of essential amino acids in the feed composition, the more they increase the digestibility of nitrogenous substances in the gastrointestinal tract.
Pharmacoprophylaxis of experimental aeromonosis of carp in the conditions of farms in the Krasnodar region
Authors: Semenenko Marina , Basankin Alexey , Basankina Victoriya , Semenenko Ksenia , Kozhina Nadezhda
Published: October 2023

The article presents the results of studies on the preventive efficiency of the drug DON-1 in experimental carp aeromonosis. As a result of the research, it was determined that the addition of the DON-1 drug to the aquatic environment, in which the fish is kept, on the background of optimal water temperature and balanced diet helps to reduce the proportion of death in the experimental group in the acute course of aeromonosis, as well as weakening the clinical manifestation of the chronic process of aeromonosis and accelerating recovery. The mentioned effect has been proven both during intraperitoneal infection of test samples of carp and osmotic infection of individuals in a separate container.
The study of the phenolic substances of the aerial part of the plant “Kokamaron” (Scutellaria Leptosiphon Juz.)
Authors: Muradov Rustam , Fayzullaev Normurot , Ergashev Ismail , Norkulov Uchkun
Published: October 2023

In the article, the extraction of secondary metabolites, i.e., flavonoids, of the Scutellaria leptosiphon Juz plant, belonging to the Scutellaria family growing in Uzbekistan, and their chemical structure was studied. The methods of extraction, fractionation, thin-layer chromatography, column chromatography, paper chromatography, and quality reaction methods were used during the research. Also, the structure of flavonoids was analyzed by physical methods - ultraviolet (UV), infrared (IR), nuclear magnetic resonance (NMR) spectroscopy and mass spectrometry. The aerial part of Scutellaria leptosiphon Juz collected from the mountains of the Sherobod district of Surkhandarya region (Uzbekistan) was studied for the first time and it was found that it contains baicalein, wogonin and baicalein-7-O-β-D-glucopyranoside. Based on the results of chemical reactions and UV, IR, 1N NMR spectrum data, the structure of 3 flavonoid substances isolated from the examined plant was determined to be Baicalein (5,6,7-trihydroxyflavone), Vogonin (5,7-dihydroxy-8-methoxyflavone) and Baicalein-7-O-β-D-glucopyronazide substances. The results and conclusions of the research conducted on the isolation and chemical structure of the secondary metabolites of the S. Leptosiphon plant belonging to the Scutellaria family growing in the flora of Uzbekistan were presented.
Developing an effective deflector for duct natural ventilation
Authors: Averkin A.G. , Eremkin A.I. , Sergeev M.O.
Published: October 2023

Information is given on increasing the available gravitational pressure of natural duct ventilation by increasing the use of wind flow energy. The scheme and operation of the developed deflector with a vertical finned cylindrical surface based on the CAI deflector are described. The laboratory bench scheme developed and patented for evaluating the efficiency of various types of deflectors is presented. Thermo-anemometer was used in experimental studies as instrumentation TKA-PKM (52), as well as a wing type anemometer. The effectiveness of the developed deflector was evaluated using the mathematical method of planning and processing of experiments. Scientific and experimental investigations were carried out on the basis of an orthogonal composite plan of the first order. A complete factorial experiment was carried out in CFE 23. A regression equation adequately describes the influence of the design and process parameters on the air velocity in the natural ventilation duct at the significance level = 0.05. Experimental studies have confirmed that it is possible to increase the degree of utilization of wind stream energy when it flows over a vertical finned cylindrical surface in comparison with a smooth cylindrical surface. It is shown that air velocity in exhaust duct can be increased up to values of 3.35 m/s. α
Models of dynamics of complex heterostructures under pulsed force effects
Authors: Volnikov Mikhail
Published: October 2023

Relevance is due to insufficient knowledge and development of models of dynamics of complex heterostructures. Modern mechatronic systems include hybrid components consisting of complex heterogeneous structures: mechanical, electrical, electronic, etc. Heterostructures function in extreme conditions due to kinematic, dynamic, temperature, vibration and other external factors and are exposed to external influences. To create a reliable system for protecting complex heterostructures, it is necessary to build appropriate mathematical models that allow you to adequately describe the processes occurring in complex heterostructures. The purpose of the work is to study and develop heterostructural models based on the equations of point dynamics, plate and multilayer structures under the action of force and impulse loads in the presence or absence of internal friction in heterostructures. Particular attention is paid to the study of models of heterostructures with dissipation, with many degrees of freedom under the action of impulse loads.
Prospects for hydrogen energy in Russia
Authors: Gorodnova Natalia
Published: October 2023

The serious depletion of natural resources and the high cost of their extraction, increase in greenhouse gas emissions, as well as the increase in energy consumption require a radical change in the technologies for generating and consuming electricity and building a “green” economy. In this regard, the topic of the study that analyzes the prospects for the hydrogen energy transition as a crucial way to improve energy efficiency is relevant. The purpose of the study is to analyze the prospects for using hydrogen fuel in solving environmental problems and overcoming the energy crisis. The study is novel in that it systematizes the international experience and Russian practice of energy efficiency, assesses the prospects for the hydrogen industry development, and analyzes possible scenarios for implementing the state energy policy in the Russian Federation. The hypothesis about the benefits of using hydrogen fuel as the main response to energy problems in Russia and abroad is confirmed.
Natural geochemical hazard as a pseudo-component of negative environmental impact of mining complexes
Authors: Krinochkina Olga , Mamina Dinya , Khurnova Ludmila , Ozerova Natalia
Published: October 2023

The paper presents the authors’ research findings that enable to avoid unreasonable charges for negative environmental impact by applying mathematical statistics and GIS technology, modern methods of geochemical sample data processing, as well as by analysis of the dynamics of engineering-geological phenomena in the mining complexes areas. The authors’ data on the manifestation of high concentrations of toxic elements in some landscape components on the territory of mining complexes are provided. The latter, according to the authors, are associated with the outcrop of molybdenum ore occurrences, which were previously blocked by thin Pleistocene deposits. Then, due to sloughing of these deposits, molybdenum compounds began penetrating to the environment components.
Ice adhesion to hydrotechnical structures
Authors: Sharapov Dmitry
Published: October 2023

Mitigating ice adhesion on offshore and port structures is crucial for ensuring their safety and operational efficiency in cold climates. Ice adhesion, the molecular attraction between ice and a surface, can lead to increased structural loads, reduced stability, and restricted functionality. This work provides an overview of the different concepts, including the nature of ice adhesion, its consequences on structures, and effective strategies to minimize it. The strategies include surface coatings, surface roughness modifications, heating systems, de-icing and anti-icing systems, structural design considerations, and regular maintenance. These approaches aim to reduce ice adhesion, facilitate ice shedding, and enhance the resilience of offshore and port structures. By implementing these strategies, the integrity and performance of these critical infrastructures can be maintained, ensuring safe operations and supporting transportation and energy production in cold regions.
Disposal methods for radioactive waste from nuclear power plants and environmental radiation monitoring methods
Authors: Shchipalkina Anna , Smirnova Ekaterina
Published: October 2023

Air pollution has a serious impact on human health. Deterioration of the air environment causes 7 million premature deaths annually. Despite the active implementation of various environmental programmes and technical resources aimed at preserving and protecting the environment from anthropogenic factors, over 90% of the world's population live in cities that do not meet the air quality recommendations of the World Health Organisation (WHO). Intense and constant technogenic load necessitates continuous monitoring of atmospheric air quality. Sufficient, systematic and representative information is needed to study the spatial and temporal distribution of substances in the air basin, to predict pollution levels and to make correct environmental decisions. Environmental monitoring is a tool for obtaining such information. In this work the analysis of influence of radioactive waste of nuclear power plants on a radiation level of environment is executed and the tasks of its ecological monitoring in areas of location of the enterprises of nuclear power industry are considered.
Morphometric characteristics of lake bottoms of Lakes CHarskoe and Nuksenskoe (Volga upland, Russia) as the basis of their classification
Authors: Astashin Andrej , Nikolaeva Ekaterina , Bayanov Nikolaj , Vatina Ol'ga , Badin Mihail
Published: October 2023

The article presents the results of researching the morphometric and hydrological characteristics of Lakes CHarskoe and Nuksenskoe and suggests their genesis. Lakes have scientific (zoological, botanical, geological, geomorphological), water conservation significance, perform the environmental function of typical biocenoses of karst lakes. During the research, a bathymetric survey was carried out from the board of a boat, using an echo sounder, combined with a navigator. The results of field research were processed using the geoinformation program QGIS, digital models of the relief of lake basins were constructed, the main morphometric and hydrological characteristics were calculated. Based on the analysis of the morphometric characteristics of lakes and data on the landscape features of their surroundings, primarily on the geological structure (geostructural, lithological, etc.), conclusions are drawn about the karst origin of lake basins and the classification of lakes according to a set of criteria is carried out.
Geoecological risks in the valleys of small rivers of the forest-steppe zone of the Russian plain (on the example of the Chuvash Republic)
Authors: Nikonorova Inna , Ilyin Vladimir , Ilyina Anastasia , Petrov Nikolay
Published: October 2023

The Chuvash Republic belongs to the territories with a high frequency of occurrence of emergency situations of moderate severity. This is due to the intensive economic development of the region. The probability and intensity of the manifestation of georisks is different for individual landscapes, therefore it needs a detailed study. The study includes the study of the probability of the development of slope, climatic, hydrological risks, and the risk of wildfires on the territory of the Chuvash Republic. The analysis showed that the slope type of geoecological risk is confined to the river valleys of the region and has maximum values in the north of the Chuvash Republic. A high risk of flooding and flooding exists in the valleys of major rivers of the region (Volga, Sura) and their tributaries of the first order. On other watercourses, the hydrological risk is not significant. Climate and weather risks are associated with hurricane winds and dry winds. The southeastern part of the region suffers the most from them. The risk of fires depends on the composition and age of the stand. The maximum risk values are typical for the Prisursky forest area (southern and southwestern parts of the region). Based on the data obtained, the classification of the districts of the Chuvash Republic by the size of the georisks was carried out. Four groups of districts were identified according to the probability of natural emergencies and the main factors of their occurrence were described.
Modeling the flow in the presence of underwater vegetation
Authors: Dalabaev Umurdin , Latipov Nusratilla
Published: October 2023

The paper investigates the flow of an incompressible fluid in an open stream with an unequal bottom and slope. The uneven bottom is due to vegetation. The flow is modeled on the basis of the two-velocity Rakhmatulin model, in a laminar regime from zero velocity of the discrete phase. The flow of a viscous fluid in a channel with an open stream with vegetation at the bottom of the stream is considered. The results of numerical simulation of the hydrodynamic features of a two-dimensional viscous flow are presented. The Kozeny-Karman ratio is used as the force of interaction with vegetation. The methods of computational experiment are used to study the effects of non-uniformity of the fluid velocity field, which arise due to vegetation. A qualitative comparison of velocity inhomogeneities is carried out. For the numerical implementation of the resulting equation, which is a generalization of the Navier-Stokes equation, a SIMPLE-like algorithm with appropriate generalizations was used. A single algorithm is applied for the entire area, without highlighting the free and porous zone.
Neural network model for detection of changes in forest environment using multispectral images
Authors: Tulokhonova Inna , Evdokimova Inga , Grigorenko Alexander
Published: October 2023

The article presents the task of detecting changes in the forest environment using multispectral images for balanced forest management and monitoring of the regional forest ecosystem. The method of semantic segmentation based on assigning each pixel a corresponding class label is used for recognition, object classification on the image, and analysis of multispectral images. By studying the spectral characteristics of pixels, the neural network automatically extracts and memorizes features from the data, using them for classification and change detection. Experimental results based on the developed software prototype confirm the reliability of the theoretical aspects of the model for change detection in the forest environment. Moreover, the neural network model for detecting changes in the forest environment using multispectral images has practical significance and can be applied to solve real tasks of the regional forest ecosystem of the Republic of Buryatia.
Statistical and managerial analysis of the digital transformation of economy in the context of sustainable development
Authors: Ilinov Aleksandr , Kalabekova Leylya , Khodova Yana
Published: October 2023

The purpose of the study is to analyze available statistic information concerning the level of digitalization in the Russian Federation and to identify problem areas for the subsequent development of measures to eliminate them. Currently, a number of quantitative indicators have been developed in the world that determine the ranking of countries according to the degree of development of the digital economy. It is a system of indices and sub-indices on various areas of digitalization development. Conducting such evaluation by various organizations allows us to speak about the objectivity of assessments received and the reflection of real situation in a particular country. The article provides an analysis of the position of the Russian Federation among other countries of the world on a number of digital economy development indices – the world digital competitiveness index, the readiness index for a networked society, the inclusive Internet index, the e-government development index, the mobile interaction index, as well as on national indicators affecting digital economy and information and communication technologies. The dynamics of these indicators in recent years is analyzed, problematic areas of digitalization in our country are identified in order to concentrate efforts on lagging areas, which would ensure further development of the Russian economy.
Using digital twins to create an inventory management system
Authors: Kukartsev Vladislav , Kozlova Anastasia , Kuimova Olga , Nelyub Vladimir , Gantimurov Andrei
Published: October 2023

The article considers the application of the inventory management model on the example of a manufacturing enterprise, where it is planned to use a digital twin together with the inventory management system. Inventory management model is a mathematical model that allows you to determine the optimal level of stocks at the enterprise. In a manufacturing enterprise, this model can help optimize the inventory of raw materials, materials, and finished goods, which will reduce costs and reduce risks associated with the lack of necessary raw materials or required quantities of finished goods. With the help of data obtained from the enterprise, the input parameters of the model were obtained, namely the size of resource consumption, stock holding costs, delivery realization costs, and time required for delivery. The model was used to find the parameters such as optimal order size, delivery period, inventory level at which ordering should be carried out.
Improving the performance of the algorithm for distributing numerics by ranges
Authors: Strabykin Dmitry , Meltsov Vasily , Krutikov Alexander
Published: October 2023

The paper considers an accelerated algorithm for distributing numbers over given ranges. The proposed algorithm allows you to quickly distribute integers over predetermined ranges with deterministic boundaries and calculate the number of elements in each of the ranges. If the number of ranges lies in the range from 64 to 256, then the time for solving the problem will be reduced by 9–33 times. The algorithm can be implemented in both software and hardware.
Movement of an submerged body in conditions of shallow water depth
Authors: Vitaly Zemlyak , Vasilyev Alexey , Kozin Victor
Published: October 2023

Forces and moments acting on an AUV during its movement play a decisive role in its manoeuvrability and operational parameters. When choosing the shape of a vehicle, it is necessary to provide for obtaining acceptable hydrodynamic qualities that ensure the vital activity of a crew and the placement of equipment, which directly affects the dimensions and external outlines of an AUV. The purpose of the study was to determine the performance of the numerical model in the ANSYS software by comparing the results of the hydrodynamic characteristics of the object with experimental data and data from other studies. Hydrodynamic forces acted on the immersed body from the side of the liquid at a small immersion depth. The dependences demonstrated both qualitative and quantitative agreement between the experimental and numerical results. In general, we concluded that the proposed methodology and method of conducting model experiments and the numerical algorithm developed by us, accurately describes the process of motion of a submerged body in a near-surface water environment.
Controlling of the digital transformation oil and gas industry
Authors: Karnauhov Aleksandr , Kozhubaev Yuriy , Ilin Aleksei , Ivanov Viacheslav
Published: October 2023

The global challenges of the Russian oil and gas complex intensify the search for effective development directions both in the near and long term. One of these ways is digitalization. The development and implementation of digital technologies in technological processes and business processes helps to increase the competitiveness of oil and gas enterprises in the domestic and global energy markets. To increase the synergy effect and the rate of implementation of digital technologies, it is necessary to conduct development within a single concept and with optimal management of development and implementation processes within the entire oil and gas industry, and not locally for individual companies. The paper shows the features of digitalization of the oil and gas industry in Russia, analyzes the conditions for effective digital transformation, formulates the prospects for digital development of the oil and gas complex, taking into account breakthrough technologies, and develops a block diagram of a management system for the development and implementation of digital technologies.
Development of an intelligent decision-making system to support scientific and industrial formations VPN connections
Authors: Zaenchkovski Artur , Lazarev Alexey
Published: October 2023

The development of information systems to ensure the safe coordination of information flows in scientific and industrial clusters makes it possible to automate a number of tasks aimed at increasing the cooperative interaction productivity. The use of existing traffic encapsulation solutions or the new client-server algorithms development for network interaction affects the decision-making component for managing the TCP/IP structure, authorization of subjects, and support for correct load distribution. At the moment, most VPN servers do not have the specified functionality, which does not allow integrating solutions into existing scientific and industrial clusters. As the main solution, a flexible decision support system is proposed that takes into account all aspects of the virtual tunnel software component. The proposed solution is based on the use of complex methods for assessing the software modules state to make decisions on changing the operation of functional modules. The development result of the proposed system and the conducted functional testing made it possible to automate the operation of VPN tunnels when working with a complex network interaction structure.
Calculation of reliability of a centrally compressed column with a cross-corrugated wall
Authors: Galaeva Natalya
Published: October 2023

Issues of safe operation of buildings and structures in the Russian Federation are regulated by various legal and regulatory and technical documents, including Federal Law No. 384 "Technical Regulations on the safety of buildings and structures", to which is attached a list of documents with the status of mandatory, including GOST 27751-2014 "Reliability of building structures and foundations. The main provisions". In this normative document, it is proposed to calculate the reliability of building structures using probabilistic and statistical methods that can be used only in cases where there is complete, homogeneous and statistically independent information about the controlled parameters, while there are no instructions on how to calculate the reliability of building structures if it is impossible to obtain statistical information as a result of the survey and monitoring of building structures. information on controlled parameters, allowing to reliably identify the distribution law and its parameters. The article proposes a particular method for calculating the reliability of a centrally compressed column made of an I-beam with a cross-corrugated wall according to the stability criterion, in which part of the controlled parameters are considered as random variables with complete statistical information, and the other part of the parameters having incomplete statistical information is considered as fuzzy variables. The combination of random variables and fuzzy variables in calculating the reliability of the column made it possible to more fully take into account statistical information about the controlled parameters.
Organizational and technological approaches to assessing the safety of buildings affected by emergencies
Authors: Novoselova Irina , Petrov Konstantin , Kalugyan Karina
Published: October 2023

This article is devoted to the problem of assessing the safety of buildings affected by natural disasters and man-made accidents. The work describes stages of assessing the safety of buildings affected by natural disasters and man-made accidents; proposes technical and organizational measures for improving the quality of the assessment of technical condition and safety of capital construction projects; reviews main directions for solving the problem of timely organization of the process of assessing the technical condition and safety of buildings affected by natural and man-made emergencies.
Determination of critical filament length for composites fabricated using additive technologies
Authors: Vlasov Danila , Tatus Nikolai , Plugatar Taras , Polyakov Artem
Published: October 2023

The paper shows the results of an experimental-theoretical study aimed at investigating the adhesive properties of the filament-matrix interface. The characteristic fields of strain when pulling a single filament from the matrix are shown. The filament length at which the load reaches a "plateau" is experimentally determined. According to this effect, it is possible to estimate the value of the critical filament length for a certain material, at which a local fiber break in the matrix does not affect the strength of the entire structure.
Investigation of abrasive wear after combined hardening by deformation wave and heat treatment
Authors: Kirichek Andrey , Solov’ev Dmitry , Silantyev Sergey , Yashin Alexandr , Fonina Anastasia
Published: October 2023

The article describes a new method of combined hardening, using sequential processing by wave strain hardening (WSH) and heat treatment (HT). The possibility of increasing the hardness of the surface layer by the proposed method while maintaining the impact strength of the material at an acceptable level has been established using the example of steel 65G. The results of studies of operational properties (abrasive wear resistance) of samples after hardening by combined technology are presented. Technological recommendations are given for the choice of hardening modes, which makes it possible to increase the mechanical properties of the material and reduce the abrasive wear of samples made of 65G steel. The proposed technology can be applied to the processing of heavily loaded machine parts operating in aggressive conditions and significant shock loads.
Analysis of the competitiveness of the enterprise based on the theory of utility
Authors: Yekimov Sergey , Vondráček Martin , Egorushkina Tatiana , Podburtnyy Maxim
Published: October 2023

Each company makes efforts to occupy its market niche in its own way, for example, through the skillful use of internal and external factors or through the mobilization of internal resources. An ideal enterprise should be able to minimize the costs of production, and at the same time not create problems with its existence for the environment, as well as provide its customers with goods or services of appropriate quality. There are many criteria used to assess the competitiveness of an enterprise, but among them the quality of products is of paramount importance in choosing consumer preferences. The process of managing the competitiveness of an enterprise is closely related to product quality management. Wear resistance, maintainability, environmental friendliness, safety, durability, aesthetics of the product determines its main consumer properties , and therefore usefulness to the consumer. From the perspective of a potential investor , an investment object that allows achieving greater profitability with less risk is more useful for investing . The competitiveness of the enterprise depends on the factors of the internal and external environment, among which the most important is the consumer demand for the products produced by the enterprise. Achieving commercial success is possible if the company produces high - quality products that are useful to the buyer . The demand for products is directly proportional to the usefulness of products for the buyer.
Climate agenda and ESG principles’ application to Russian realities
Authors: Baburina Olga , Kuznetsova Galina , Podbiralina Galina
Published: October 2023

The global economy has been in a state of turbulence for the past three years, caused by a number of external and internal factors, and has been the source of energy, food and financial crises. Under these conditions of instability, the global trend - the movement of humanity towards the Sustainable Development Goals, of which combating climate change is an important element - takes on particular significance. However, the solution to these problems is only possible through close cooperation between the state, with its regulatory institutions and control instruments, and businesses that are prepared to follow ESG principles. The aim of the study is to analyse the global and Russian situation with regard to the implementation of the climate agenda, to show that, despite the complex geopolitical environment and the new challenges facing the Russian state and business circles, business understands the need for transition to ESG principles and is taking certain steps in this direction. The authors conclude that this area of activity will receive additional impetus in the near future, including through the introduction of new international trade regulations.
Environmental and socioeconomic interconnection models and algorithms for managing competitively sustainable regional development
Authors: Shamaeva Ekaterina
Published: October 2023

The relevance of the work is stipulated by the need to develop a measurement toolkit of energy, environmental, social, and economic processes in the focus of interdisciplinary research. The aim of the research is to form an objective tool for measuring the state of regional systems, taking into account the interrelation of environmental, social, and economic processes. The methodological basis of the work is physical and economic indicators reflecting the interrelation of natural and economic processes. The main hypothesis put forward is that it is possible to build an integral index that objectively describes the model of competitively sustainable development of regions in the context of the interrelation of energy, environmental, social, economic processes. The results of the study have shown that the physical-economic (natural-physical) law operating in economic life, in the economy is the law of conservation of energy (power) flow, and the methodological basis for the construction of an integrated model of regional development should be the requirements arising from the law of conservation of energy (power) flow. The work is the result of theoretical, methodological, and applied research on systemic natural-scientific analysis of development management in socioeconomic systems considered in interaction with the environment. The results of the study contribute to the understanding of methodological possibilities of non-monetary measurement and on this basis the construction of a multilevel complex model in terms of natural-scientific indicators. The analysis of the results of application of the developed models allows to reveal conditions and limitations of energy, ecological, social, economic development of regions.
Ensuring the projects’ environmental safety based on a risk-based approach
Authors: Shushunova Natalia , Lisienkova Liubov , Rodionova Svetlana , Baranova Ekaterina
Published: October 2023

The modern construction pay attention to fundamentally new requirements, the quality of products and service and improve the quality management system of green building and environmental safety facilities. The integration of new energy efficient technologies and energy efficient buildings is one of the priority options in the development of modern cities. The article use the methods of comparative analysis of the various international standards of green buildings and eco-certification of greening systems were applied, based on a risk-based approach. Risks are calculated using complex methods. The assessment of green building sustainability was considered as is a key factor of reducing technogenic risks and be the guarantee that the green building is environmentally friendly. The analysis showed the main regulatory and technical documents used in the construction of buildings with the use of greening systems, considered the basic safety requirements when working at height, and also evaluated the application of standards in the field of environmental certification of materials of new technologies used, developed by authors.The ecological certificate allows to increase the competitiveness of products in the market, which is economically beneficial.The principles of green building are aimed at creating a healthy and comfortable environment due to a large amount of daylight and fresh air.
Methodology of optimal classification of regions by the level of industry development
Authors: Khamidov Obidjon , Farmanov Tolqin , Khomidov Sokhibmalik , Abdulloyev Asliddin
Published: October 2023

The article describes the methodology of classification of multidimensional observations, according to which, in theory, development indices of regional industrial production were developed. According to this index, conditional regions are divided into lower, middle and upper classes. In the study, the development tendencies of the regions classified by the development index into stratified groups were also determined. At the end of the article, the theoretical and empirical conclusions obtained as a result of the research are presented.
Trajectory of economic development of the Republic of Uzbekistan in the process of digitization
Authors: Khamidov Obidjon , Tokhirov Javlon , Khurramov Ortikjon , Barnayev Zarif
Published: October 2023

The purpose of the this work is to study the process of digitalization of the economy of Uzbekistan and its impact on the economic development of the country. The digitalization process covers all new sectors of the economy and requires the country to make appropriate changes in economic policy. The Republic of Uzbekistan is also no exception. The country is on the path of reforms and transformations in various areas, and digitalization is one of the main tasks of the national economy. In this regard, it is necessary to conduct a deep analysis of the trajectory of the country's economic development in the process of digitalization, identify key problems and assess their impact on the economic growth and development of Uzbekistan. The article contains the opinions, conclusions and suggestions of the authors on the topic.
Sampling of a driving cycle for e-trucks with a mechatronic transmission
Authors: Buzunov N.V. , Emelyanov M.A. , Gazizullin R.L. , Kartashov A.B. , Murashov M.V.
Published: October 2023

Traction battery vehicles (TBV) are currently gaining more and more popularity and are gradually replacing vehicles with ICE and traditional transmissions. The usage of an electric traction drive as part of TBV solves a number of problems that manufacturers of this type of equipment face today: reducing harmful emissions into the atmosphere, reducing noise, used lubricants recycling, and the increase of the energy efficiency. From the point of view of the scientific research, this type of wheeled vehicles is also of high interest due to the large number of problems and tasks that have formed at the moment. It is a common knowledge, that one of the main problematic issues for the TBV is a rather limited range. In cargo electric vehicles and buses, in order to reduce the size and increase the usable volume of the passenger compartment or cargo space, as well as to unify the products of the power unit and drive, there are used the transmissions, which are the combination of mechanical and electrical components with appropriate control systems. The mechanical component includes a gearbox with one or more gear ratios, an inter-wheel differential, axle shafts, bearings and other components. The electrical component is a traction motor located directly in the drive axle (integrated) or on the outside of the crankcase, as well as a voltage converter with a control system and the necessary switching elements. Similar implementations of the driving axles of vehicles with traction batteries are called mechatronic transmissions.
Mathematical models of truck failures in the North
Authors: Buslaeva Irina
Published: October 2023

The article studies the failures of 50 KAMAZ trucks operated in the Republic of Sakha (Yakutia). The statistical analysis results of failures of KAMAZ truck parts and assembly units groups which limit its reliability in adverse climatic and road conditions of the North are given. Autocorrelation of the failure time series of the observed groups revealed the presence of a linear trend for every series, and the statistical significance of the linear regression equation parameters was confirmed for all groups, except for the steering. The wear rate in harsh natural and climatic conditions can be estimated in terms of the value of the regression slope. The groups of parts and assembly units were ranked by the values of the regression slope. After the failure time series have been centred, the harmonic analysis was carried out. The significant harmonic components were allocated from the Fourier series to describe the regular change in the failure series. Mathematical models, consisting of equations of linear trend and significant harmonics, approximate the failure time series with an acceptable confidence level, which makes it possible to determine the rhythmological features of vehicle operability changes in extreme conditions of permafrost zone.
Design and justification of hydrostatic transmission parameters for special transport vehicles
Authors: Vorozhtsov Oleg , Seleznev Evgeny
Published: October 2023

Traditionally, hydrostatic transmissions of specialised transport vehicles use piston hydraulic machines to move the vehicle, as well as to operate attachment systems and units. For a wide range of special vehicles used in agriculture and municipal services, movement requires the power of the drive motor, comparable to the power of gear hydraulic machines. Gear hydraulic machines are less demanding on the quality, viscosity, and purity of the working fluid, are cheaper, and are easier to operate. Regulation of speed of an output shaft of gear hydraulic motors, as a rule, is provided by the throttle method that considerably reduces the general efficiency of a hydraulic drive. In the article the project of hydrostatic transmission on the basis of gear hydraulic machines with "volumetric" way of regulation is offered, the basis of which is the combination of work of two hydraulic motors (gerotor and gear with external gearing) with connection of output shafts of hydraulic motors to axes of gear differential. The basic calculation dependencies for determining the operating parameters of transmission hydraulic machines are given.
Transformation of the higher education system: Current and emerging global trends
Authors: Mirgorodskaya Elena , Sokolova Svetlana , Kuzmina Tatyana , Shkuratova Maria
Published: October 2023

In the context of unfolding global processes of the post-industrialization, informatization and the growth of knowledge components of economic development, the higher education system as an element of the economic and cultural compound of the countries and states acts as a moderating medium between all socio-economic subsystems of modern society. With the impact of global processes, the national higher education system assesses and neutralizes global risks, where it is possible, and creates sustainable trends of their effective adaptation. Regardless of the devotion level of the regional educational system and regardless of the priorities of the state educational system, it is impossible to exclude diffusion of the trends, tendencies and the global technologies. That is why, for the higher education systems of countries, the transformation of higher education systems in these conditions involves the adoption of a special model of such transformation – converged, which allows to identify the most dynamic, effective and relevant processes of change and to detect on this basis the main objectives of transformation and mechanisms for its implementation. With the expansion of information and technological processes in the society and in the aspect of the increasing restrictions of social mobility, the higher education takes on new meanings and new significance. In a globalized environment, the transformation of the autonomous higher education systems implicates the adoption of the specific model of transformation – the converged one. From these perspectives, the appreciation of the impact of global trends and tendencies to the transformation of stable patterns and links between the higher education economy seems to be a promising subject of research.
On the problem of scientific and theoretical research on the development of divergent thinking of primary class students
Authors: Adizova Nigora
Published: October 2023

In our study, it is important to understand the development process of thinking in primary school children, because in our study we are talking about the formation of divergent thinking of elementary school students in extracurricular activities. Starting from the chosen logic, first of all, we will clarify the essence of the concept of "development", which has various interpretations in the scientific literature. We have made comments on the approach to philosophical understanding of development as an irreversible process aimed at changing material and ideal objects, changing matter and consciousness, and the process of becoming a person undergoing qualitative and quantitative changes under the influence of internal impulses.
Veranstaltungsübersicht
Authors: Bundschu Marion
Published: October 2023

Informationen zu den Veranstaltungen finden Sie auf

www.wbs-ulm.de
.
Nierentransplantatabstoßung
Authors: Aßfalg Volker , Stocker Felix , Stock Konrad , Renders Lutz
Published: October 2023

Pathophysiologisch lassen sich neben der T-zellulären und der antikörpervermittelten (humoralen) Abstoßung gegen humane Leukozytenantigene (HLA) auch Abstoßungen gegen Nicht-HLA-Moleküle, komplementgetriggerte Abstoßungen und Abstoßungen durch Missing-Self beschreiben. Klinisch müssen in Abhängigkeit vom Zeitpunkt nach einer Transplantation immer auch nichtimmunologische Ursachen einer Transplantatdysfunktion in Betrachtung gezogen werden. Trotz moderner immunsuppressiver Medikation ist die chronische Nierentransplantatabstoßung der limitierende Faktor für das Überleben eines Nierentransplantats. Akute Abstoßungen lassen sich nur in Zusammenschau von klinischen, labormedizinischen und apparativen Befunden nachweisen – der Goldstandard in der Diagnostik einer Abstoßung stellt die nephropathologische Begutachtung eines Nierenbiopsie-Stanzzylinders dar. Die Nierentransplantatbiopsie ist ein standardisiertes, und in geübten Händen für Patienten und Transplantat sicheres, diagnostisches Verfahren.
Synopsis wichtiger Scoring-Systeme in der Kardiologie
Authors: Jabs Alexander , Hink Ulrich
Published: October 2023

Zur Einschätzung und Behandlung kardiovaskulärer Krankheitsbilder in der Notfall- und Intensivmedizin sind zahlreiche Scores gebräuchlich und klinisch erprobt. Im Alltag ist eine
weitestmögliche Einfachheit und Verlässlichkeit solcher Scoring-Systeme entscheidend, die eine schnelle Anwendung ermöglichen und somit als klinische Entscheidungshilfe dienen können.
Biomarker in der Brustschmerz-Ambulanz (BSA)
Authors: Klingenheben Thomas , Bosch Ralph
Published: October 2023

Die Abklärung des akuten Brustschmerzes ist eine häufige Aufgabenstellung in Notaufnahmen und im ärztlichen Notdienst, nicht selten auch in der Haus- oder Facharztpraxis. Der
Risikostratifikation des akuten Brustschmerzes kommt eine vitale Bedeutung zu, damit Patienten mit hochwahrscheinlicher Diagnose eines akuten kardiovaskulären Ereignisses zeitnah einer
fachärztlichen Sofortdiagnostik und -therapie zugeführt werden können. Andererseits sollten unnötige Krankenhausaufnahmen vermieden werden, sofern ein Brustschmerz eindeutig als nicht
kardial identifiziert werden kann. Deshalb wurden in den vergangenen Jahren zertifizierte Brustschmerz-Ambulanzen (BSA) etabliert. Neben weiteren Voraussetzungen stellt die jederzeitige
Verfügbarkeit der Bestimmung kardialer Biomarker einen obligaten Eckpfeiler der Abklärung in der BSA dar. Neben einem Standard-12-Kanal-EKG erfolgt bei jedem BSA-Patienten die Bestimmung von
Troponin und D-Dimeren sowie ggf. NT-pro BNP. Zusätzlich präzisiert die Anwendung klinischer Scores die Risikostratifikation von Brustschmerzpatienten. Besonders der HEART-Score bietet die
Möglichkeit, eine Risikoabschätzung nach objektiven Kriterien vorzunehmen.
RCU: Respiratory Care Unit
Authors: Keymel Stefanie , Kelm Malte , Krüger Stefan
Published: October 2023

Das Leitsymptom pneumologischer Erkrankungen in der Akut- und Notfallmedizin ist die akute Luftnot. Patienten, die sich mit Luftnot in der Notfallaufnahme vorstellen, haben im Vergleich zu
Patienten mit dem Leitsymptom Brustschmerz oder Bauchschmerz eine höhere Rate an Aufnahmen auf die Intensivstation und eine höhere Letalität. Für die optimale Patientenversorgung scheint es
sinnvoll, Patienten mit akuter Luftnot in einer hierfür spezialisierten Versorgungeinheit, einer Respiratory Care Unit (RCU), analog zu einer Chest Pain Unit zu behandeln. Für die
Etablierung einer RCU sind bestimmte inhaltliche und strukturelle Voraussetzungen definiert worden, die in diesem Artikel dargestellt werden.