bluuebunny/crossref_metadata_2025 huggingface dataset:
A novel concept and design for highly efficient photoelectrocatalytic materials with high performance, stability, and charge transport properties: development of an innovative next-generation green technology
Authors: Mugheri Abdul Qayoom , Ali Kashif , Sangah Ali Asghar , Khaskheli Mazhar Iqbal , Laghari Muhammad Younis , Mugheri Nadeem Ahmed , Soomro Muhammad Rajib , Chohan Muhammad Ishfaq , Mugheri Arsalan Ahmed , Kandhro Aftab
Published: January 2024

In semiconductors, generating charges via catalysis is a highly challenging task and characteristic of heterojunction photoanodes.
Influence of protonic acid on the structure and properties of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) in oxidation polymerization
Authors: Guo Jialin , Zhang Kai , Luo Piao , Wu Nanjie , Peng Shigui , Wei Lanlan , Liu Yufei , He Min , Yu Jie , Qin Shuhao , Fan Qiao , Luo Tingting , Xiao Jun
Published: January 2024

A proper amount of protonic acid in the oxidative polymerization system can effectively reduce the formation of the terminal carbonyl group of PEDOT chains, which is conducive to the growth of polymer chains.
Encapsulation of TixFeyLamOz nanoparticles into NH2-MIL-125(Ti) to fabricate a promising photocatalyst for the C–N coupling reaction
Authors: Absalan Yahya , Rafsanjani Dehghazi Mohammad , Samavati Reza , Souri Kambiz , Gholizadeh Mostafa
Published: January 2024

An array of organic compounds and natural products can be synthesized through carbon–nitrogen coupling reactions.
A robust data analytical method to investigate sequence dependence in flow-based peptide synthesis
Authors: Tamás Bálint , Willi Pietro Luigi , Bürgisser Héloïse , Hartrampf Nina
Published: January 2024

A new data analytical method for flow-based peptide synthesis enables robust and quantitative analysis of sequence-dependent difficult couplings.
A safe and new strategy for N-arylation of 2,4-thiazolidinediones via microwave irradiation using base catalyst K2CO3 in DMF
Authors: Patil Ragini C. , Khiratkar Nita M. , Ahmed Sumeer , Jamalis Joazaizulfazli , Hasan Aso Hameed , Berredjem Malika , Kawsar Sarkar M. A. , Bhat Ajmal R.
Published: January 2024

Green efforts as an alternative to existing conventional methods for providing new tools, knowledge and design of organic synthesis, will contribute to the economy and protecting the environment and health.
Fractal growth of a fern-like nanostructured Cu2O film electrode for electrochemical reduction of CO2 to ethanol
Authors: Singh Deep Lata , Shanmugam Ramasamy , Mishra Vineet , Rao G. Ranga
Published: January 2024

A nanostructured Cu2O fractal film/SS-316 electrode for CO2 conversion to ethanol.
Controlling active turbulence by activity patterns
Authors: Partovifard Arghavan , Grawitter Josua , Stark Holger
Published: January 2024

By patterning activity in space, one can control active turbulence.
Isomeric polythiophene: a promising material for low voltage electronic devices
Authors: Kumar Devendra , Tiwari Rudramani , Verma Dipendra Kumar , Yadav Shashikant , Parwati Km , Adhikary Pubali , Krishnamoorthi S.
Published: January 2024

Initially, IPTh exhibits positive capacitance varying in the range of 30–60 μF. However, doping by iodine induces large persistent negative capacitance (up to −1 F).
Cellulose modification for sustainable polymers: overcoming problems of solubility and processing
Authors: McNeice Peter , ten Brink Gert H. , Gran Ulrik , Karlson Leif , Edvinsson Rolf , Feringa Ben L.
Published: January 2024

A flexible methodology to prepare water-soluble cellulose derivatives for easy processing is presented. The properties of the cellulose analogues are controllable, and the methodology enables further functionality to be added.
Oxygen-incorporated crystalline/amorphous heterophase cobalt vanadium selenide nanoplates with dense interfacial sites for robust lithium–sulfur batteries
Authors: Tan Pengcheng , Yin Yuan , Cai Daoping , Fei Ban , Zhang Chaoqi , Chen Qidi , Zhan Hongbing
Published: January 2024

Oxygen-incorporated heterophase cobalt vanadium selenide nanoplates with dense crystalline/amorphous interfacial sites (DC/A O-CoVSe NPs) are developed as high-efficiency sulfur electrocatalysts for lithium–sulfur batteries.
The electric vehicle transition
Authors: Diouf Boucar
Published: January 2024

Automobiles are the main sources of pollution; decarbonization of road transport is a major objective around the world.
A strong dependence of sputtering power on c‐axis oriented aluminium nitride on Si (111): A structural and electrical study
Authors: Sanjeeva Sandeep , Rudresh Jyothilakshmi , Vinayakumar K. B. , Nagaraja K. K.
Published: January 2024

Growing and controlling the c‐axis orientation of the aluminium nitride (AlN) thin film on unheated Si (111) substrates using reactive magnetron sputtering are challenging. Sputtering parameters such as nitrogen concentration and sputtering power were effectively tuned to grow the c‐axis oriented AlN thin film. The results show that a low concentration of (25%) N2 is enough for forming AlN at a reduced flow rate, whereas a higher flow rate requires a higher concentration of N2. Low concentration with a low flow rate is preferred to grow AlN at low temperature and power. The poor crystallinity of AlN with (100) orientation was improved by varying the power from 75 to 175 W. The X‐ray diffraction results confirmed the improvisation of crystallinity of grown AlN films and indicated the strong dependence of preferred c‐axis orientation on sputtering power. Also, the dependence of sputtering power on microstrain and stress was analysed. The surface morphology study by field emission scanning electron microscopy and topography measured by an atomic force microscope shows a dependence on sputtering power. The high c‐axis orientation was observed at 175 W with low surface roughness, low leakage current density (2 × 10−9 A/cm2) and low dielectric constant (6.8).
Study of the effect of foliar dressing on horseradish yield in the conditions of the North-Western part of Russia in Pskov region
Authors: Fedorova Yulia , Fedorova Larisa , Telpuk Mikhail
Published: January 2024

The article presents an analysis of the problems in growing horseradish in the Russian Federation which are associated with an insufficient amount of planting material, as well as with the lack of cultivation technologies and not fully studied biological features of this crop. The results of the study contain material on the study of the effect of foliar dressing with Basfoliar complex mineral fertilizer in concentrations of 1.5 and 2.5 ml/l, 2.5 and 3.5 ml/l and 3.5 and 4.5 ml/l on horseradish yield in Pskov region. The experiments were conducted in the State Agricultural Academy of Velikie Luki and at the experimental plot in Pskov region, Pustoshkinskiy district in Orekhovo village. The paper presents data on improving the technology of growing horseradish of the Uvarovsky variety. The optimal concentrations of the applied Basfoliar fertilizer on the morphological parameters of the Uvarovsky variety in concentrations of 2.5 and 3.5 ml/l were established, thus, the maximum length of the leaf blade was 60.6 cm, the length of the rhizome — 37.8 cm. The highest commercial yield — 14.5 mt/ha and annual rhizomes — 10.0 mt/ha was obtained using Basfoliar 2.5 and 3.5 ml/l. To obtain a consistently high horseradish yield, it is necessary to provide plants with a balanced mineral nutrition throughout the vegetation period. Therefore, it is necessary to study in detail when choosing specific drugs and their effect on both morphological parameters and the structure of the crop. The results obtained during this work can be used for cultivation in order to increase the crop productivity in all horseradish farms.
Heritability of breeding traits in meat breeds of sheep of different origin in the south-east of Kazakhstan
Authors: Takhirzhanovich Basitov Kamil , Prmanshaev Mamai , Dzhumadievich Chortonbaev Tyrgoot , Bekturov Amantur
Published: January 2024

The productivity of sheep depends on a number of quantitative characteristics and, above all, on the live weight, clip, length, fineness, and density of wool. The article presents the nature of the heritability of these traits in meat breeds of Etti merino, Dohne, and Australian meat merino breeds imported to the foothills of the southeastern region of Kazakhstan. It has been established that the efficiency of breeding in experimental sheep depends on the degree of heritability of the bred trait, and that the improvement of productive traits of sheep largely depends on their heritability and variability. As a result of comparing the level of development of live weight, clip, density, length, and fineness of wool by the method of a single-factor variance complex, it was found that the genotypic diversity of economically useful traits in experimental animals is mainly objective. This is especially noticeable when determining the live weight and clip of wool from mother-sheep and daughter-sheep received from them at the same age. Moreover, the older the animals, the clearer this manifestation becomes. Approximately the same pattern is observed in both the density and length of the wool.
Biological and productive features of Kyrgyz mountain merino breed types in different climatic zones
Authors: Zholborsov Ulukbek Kurbanbekovich , Chortonbaev Tyrgoot Dzhumadievich , Azhibekov Asanbek Sarmashaevich , Bekturov Amantur
Published: January 2024

The problem of global climate change on the planet requires the most effective use of the bioclimate to develop a production technology corresponding to the natural potential. The present research is aimed at studying the impact of climatic zones on sheep productivity to identify the resources of wool and mutton production. The research was conducted on sheep of fine-wool breed. The analysis and methods of variation statistics of digital data were used in the research. The significance criterion of the difference between the mean values is calculated by means of the MS Excel 2000 software. The external phenotypic indicators, meat (live weight) and wool (clip), productivity of 8,056 sheep in 13 flocks of Issyk-Kul, 24 flocks of Talas, and 10 flocks of South Kyrgyz sheep type for the period from 2012 to 2016 were used. By live weight (X±SX=58.20±0.31; CV=4.98;) ewes of the Issyk-Kul type surpass their ewes from other climatic zones with a significant difference (P<0.01; P<0.05). The research results enable farmers and livestock breeders to make the best use of existing sheep adaptation strategies and take climate change into account when developing and implementing agricultural policies.
The effectiveness of L-cysteine in the intoxication with the combination of cadmium and lead
Authors: Pavlova Natalia Sergeevna , Pavlenko Galina Ivanovna , Brichko Natalia Anatolevna , Drozdov Dmitry Aleksandrovich , Dorozhkin Vasily Ivanovich
Published: January 2024

The anthropogenic zones formation with an abnormal heavy metals degree negatively affects the safety and quality of livestock products, the health status and animals productivity. Detoxification by complexation with metal-binding proteins and peptides with a high content of cysteine (up to 33%) is one of the intracellular mechanisms of tolerance to heavy metals (HMs). L-cysteine is a natural feed component, practically it does not have any side effects and does not reduce the quality of products, the duration of its use is not limited, while complexing agents cannot be feeded for a long time, as well as the liver and kidneys deseases. The aim of this research was to study the biological effect of the L-cysteine in case of combined chronic cadmium and lead poisoning of white rats in laboratory conditions. Two-month experiment on white rats feeded with a combination of lead and cadmium at the level of 50 and 5 mg/kg respectively were held. It was found that L-cysteine led to the body weight and the function of the central nervous system normalization, the restoration of protein metabolism, and alkaline phosphatase activity, and hematopoietic functions. The feed additive significantly reduced the specific thiolotropic effect of lead and cadmium.
Analysis of key technologies of digital transformation in agriculture
Authors: Usenko Lyudmila Nikolaevna , Guzey Victoriya Alekseevna , Usenko Natalia Mikhailovna , Usenko Anastasia Mikhailovna
Published: January 2024

The implementation of digital transformation in agriculture is currently realized through the implementation of a set of digital technologies, which are interrelated with each other, within the concepts of smart agriculture and precision farming. It should be noted that the use of individual components of precision farming has been carried out for the last two decades, but at present the issues concerning the widespread distribution of integrated solutions in sustainable crop production of resource-saving nature, involving the use of various sensor devices, unmanned and automated machinery, various robotic production systems, the Internet of things, platform technologies for the realization of the digital economy are becoming more and more relevant. The fundamental task of the digital transformation in agriculture is to obtain the most important information about the state of the internal and external environment, in relation to the generated arrays of big data. Cloud platforms and big data solutions are essential to this task. In addition, the support systems used for management decision-making and the technologies of predictive analytics play a significant role.
Financial model for solving environmental problems in agriculture
Authors: Namitulina Anzhela Zahitovna , Gorlov Viktor Vladimirovich , Azhmuratova Madina Azhmambetovna , Petrovna Gladilina Irina , Sergeeva Svetlana Alexandrovna
Published: January 2024

Adverse impact on the environment and humans is one of the important tasks of modernizing agriculture and ensuring state security, rational use of resources to preserve the ecological environment. Improving the profitability of agriculture on the condition of reducing the use of fertilizers and biocides to solve ecological problem. The availability of resources (agricultural land) changes in conditions of scarcity. In this article, we consider factors for assessing the rational use of land resources, crop production technologies in achieving the goals of developing a “green” economy. The factors of analysis in this study determine the prospects for farming, in terms of results. A linear programming model shown to analyze alternative rural development systems. The result of our research helps to develop ecological policies aimed at updating agricultural practices. The availability of resources such as agricultural land, water is decreasing, among other things, due to environmental problems faced by the state. Rapid economic development and rising living standards lead to an increase in demand for more luxurious and varied food. In particular, the demand for animal products such as goat and sheep meat, beef and milk is growing rapidly, while the efficiency of using resources (especially land and water) for food production in livestock production is much lower than in crop production.
The human factor in the development of a green economy in the Kyrgyz Republic
Authors: Tokhtyyeva Zulfiya , Kurbanova Indira , Abdyzhusupova Aygul , Savin Viktor
Published: January 2024

The paper explores the importance of human capital as the most important factor in the development of a green economy of the Kyrgyz Republic. A green economy is in line with the new concept of sustainable development, thanks to its ability to improve the bio-environment, increase resource efficiency and take care of future generations. Although there are many studies on the concept and implementation of a green economy, the practical issues associated with it are not completely clear, including the importance of macroeconomic sustainability. The purpose of this study is to identify the importance of human capital in ensuring the development of a green economy of the Kyrgyz Republic. To achieve the objectives of the study, a comprehensive analysis was applied, which has shown a direct and close relationship between the level of human capital and the potential for the development of a green economy. This study examines the experience of developed countries and the competitive advantages of developing a green economy through the trinity of sustainability of the development of economy, society and environment, with the priority of investing in human capital. This paper shows that human capital is an important factor in the growth of a green economy and sustainable development for the Kyrgyz Republic.
The structure analysis of the commodity market and the meat raw material supply management
Authors: Skryabina Olga , Ryabkova Dina , Pilyaeva Anastasia
Published: January 2024

In the modern world, the market of raw meat and meat products is constantly growing and developing. It is quite dynamic and characterised by a constant increase in competition. The structure of the commodity market is evaluated not only by local region producers of the region, but also by producers from other regions, and each of them in general and in particular occupies a certain market segment. The article presents information on the analysis of the structure of the raw meat market, in particular beef. The characteristics of the main supply competitors to the Omsk region and the Siberian zone are presented Based on a questionnaire survey, the main trends in the selection of raw meat for representatives of the food industry were identified. This analysis is also based on such factors as the purchase and market price, as well as in the framework of public nutrition for finished products made from meat raw materials. Based on the results obtained, a number of conclusions were drawn, and an idea of the market for these products was formed.
The role of public-private partnership in overcoming poverty in the Kyrgyz Republic
Authors: Aljembayeva Nurgul , Imankulova Saltanat , Nogoibayeva Rimma , Aknazarova Rosa
Published: January 2024

Kyrgyzstan has been experiencing an “infrastructure deficit” for many years. It is expressed in the deplorable condition of roads, hospitals, schools, kindergartens, administrative buildings and other infrastructure facilities. One of the indicators of infrastructure quality is the global competitiveness index of countries. Among 133 countries of the world, Kyrgyzstan ranks 112th in terms of the quality of infrastructure in general. That is, it is included in the 30 countries of the world with the worst quality of infrastructure. This once again shows the country’s need for renewal, modernization and construction of new infrastructure facilities. For many years, the country has resorted to borrowing money from international creditors when it was necessary to build or repair existing infrastructure. As a result, about 90% of all Kyrgyzstan’s external loans today are debts for the construction of roads and energy facilities. However, the country can no longer follow this path today. Thus, at the end of 2021, Kyrgyzstan’s public debt amounted to $5 billion 147.22 million, or 60.33% of GDP. The high level of public debt and the recommendation of international institutions to refrain from increasing it led to the search for new instruments to finance new construction and modernization of existing socially important facilities. The mechanism of public-private partnership has become such a tool for the Kyrgyz Republic.
Economic model of power generation enterprise
Authors: Kukushkin Sergey , Balakhanov Dariko , Zhurov Yury
Published: January 2024

These days the economic system of any scale faces a challenge not only to best meet the needs of consumers, but also to ensure their comfortable living conditions (especially agricultural), that is, preserve the environment and use natural resources wisely. Power generation enterprises make a significant contribution to the violation of the environmental situation. This is partly due to the alienation of territories that could be used for other human activities, as well as significant emissions into the atmosphere. A power generation enterprise, compared with organizations of other types of activity, is characterized by the method of generating electricity which implies not the impact on the material and raw materials and the production of economic benefits, but the conversion of natural energy into electrical energy. These models are of a general abstract nature and are more applicable to organizations producing tangible economic benefits, rather than the generation of electrical energy, which is the key economic benefit, though, conventionally tangible one. Existing microeconomic models do not show specifics of their functioning – the scale of the enterprise and the conditions for profit maximization. The economic models of a power generation enterprise, the specifics of its functioning and profit-making are presented in the article.
Analysis of optimization of labor protection measures aimed at improving workplace conditions
Authors: Kurbonov Azimjon J. , Saidxonova Nazokat J. , Oblakulov Sohib T. , Djumakulova Kamila A. , Nazarova Navbahor N.
Published: January 2024

The article describes occupational safety measures that should be planned on the basis of management theory, which uses a systematic approach to develop goals, criteria, methods and controls. The methodology of the systematic approach allows revealing the internal connections of the process under study, determining the main functions of management. By striving to comply with such requirements, organizations improve the conditions in which their production is performed. In the effort to incorporate essential principles into their systems, employers can benefit from applying the ISO 45001 standard, which defines the systemic requirements that must be embraced in their business in the same manner as the requirements adopted in any other field of activity, such as production quality. The article refers to standards derived from ISO 45001 that facilitate manufacturing improvements. It outlines the impact of systemic enhancements on workers’ ability to perform work safely.
Improving the transport infrastructure on the federal highway
Authors: Sorokina Darya , Zhuravleva Mariia
Published: January 2024

Rostov-on-Don is located in the central part of Russia. It is a major transport hub. Paths from many regions of Russia intersect here. A route to the southern cities of the country passes through the metropolis, which is especially popular in the summer. Since 2022, the flow of freight and passenger transport from the annexed territories of Russia has increased significantly. The city of Rostov-on-Don plays an important role in the supply of goods, provision of services, as well as the supply of construction materials for the restoration of settlements in the annexed territories. In the Rostov region, great attention is paid to repairing roads to the Lugansk and Donetsk people's republics. High-quality roads and transport links play an important role in the development of new territories in Russia and influence the development of the modern economy. The main entrance/exit to the city is the A-280 highway “Rostov-on-Don - Taganrog - border with the DPR”, which has federal status. The route starts from Rostov-on-Don, namely from the roundabout intersection of Malinovskoye Street and Taganrog Highway, which is located within the city. The purpose of the study is to improve transport infrastructure to improve road safety at this intersection.
Analysis of reliability of a prefabricated conductive rail joint in context of heavy traffic
Authors: Isaicheva Alevtina G. , Basharkin Maxim V. , Zolkin Alexander L. , Koval Yulia N. , Bogdanov Mikhail R.
Published: January 2024

In this paper, the calculation of reliability indicators has been carried out in the article for two configurations of a prefabricated conductive rail joint: with fish plates, a welded and bypass connector, and a spring rail bond. The sections of the track where the probability of failure of the prefabricated conductive rail joint is increasing are identified. The destabilizing factors influencing the onset of failure of a prefabricated conductive rail joint earlier than the calculated values of the durability indicators are considered. A model for evaluating the reliability of the second configuration of a prefabricated conductive rail joint based on the Markov analytical model has been developed, and such reliability indicators have been calculated as the probability of its being in working condition, as well as the probability of failure of the prefabricated conductive rail joint due to the inoperability of the fish plates and the spring rail bond. The features of the configuration of a prefabricated conductive rail joint with a spring rail bond are taken into account, which consist in the fact that in order to eliminate the failure due to the inoperability of the spring rail bond, it is necessary to remove the fish plates.
The influence of anisotropic properties of the under-rail base on the track dynamic settlement
Authors: Fazilova Zulfiya , Egereva Elvira
Published: January 2024

The article presents the results of a study of the anisotropy of the under-rail base on the dynamic settlement of sections of transitional stiffness reinforced with bottomless boxes. It is proposed to model the railway track by flat elements, each of which is represented by an anisotropic plate resting on a deformable base with its own deformability parameters. Three main directions of change in the mechanical and geometric characteristics of the structure are identified: horizontal directions along the rail strands, transverse directions along the sleepers, and vertical directions down from the level of the rail head. Setting boundary conditions for individual fragments of the track structure and varying the anisotropy coefficients allows to achieve a good correspondence between the real railway track structure and its mathematical model. Graphical dependencies for the vertical displacement of points on the median surface of a flat element modeling a segment of a railway track were constructed and analyzed based on the results of determining the frequencies of natural oscillations.
Problems of and prospects for the development of railway infrastructure in Kazakhstan
Authors: Akhmedov Erjan
Published: January 2024

The rail transport remains and will in the foreseeable future remain the main mode of transport in Kazakhstan. Its importance is enhanced by the growing transit rail traffic between China and the European Union as well as between the Central Asian countries and Russia, by the fact that Kazakhstan is a landlocked country and by an active development of the Chinese Belt and Road Initiative. This is why it is so important to consider the problems of and prospects for the development of railway infrastructure in the country. The study is based on the relevant literature review and interviews with representatives of major market players and academia. The interviewees identified and discussed the major problems, recommended their solutions, and suggested ways forward. It is proposed to organize a thorough discussion of these solutions and to implement the approved ones. In general, the topic of this article is of serious importance for the country because the full utilization of its transport and transit potential will support the overall national development.
An estimation of mechanical stresses in the stator of the NB-514 motor of an electric locomotive
Authors: Portnoj Aleksandr , Melnichenko Oleg , Shramko Sergej , Linkov Aleksej , Grigorenko Pavel , Mishchenkov Maxim
Published: January 2024

The aim of the research is to determine the causes of cracks in stators of traction electric motors of the NB-514 series. The application of mathematical modeling using the finite element method, which allows one to evaluate the mechanical stresses arising in the stator under the influence of thermal and vibration loads, is considered. The results of thermal modeling are presented for uneven heating of the electric motor frame to temperatures typical for the hourly operation of a traction motor. The results of vibration modeling, including the study of natural vibration modes and frequencies, are also presented. Based on the results of the studies, it was concluded that the cause of the formation of cracks in the area of ventilation hatches is a complex of cyclically repeating temperature and vibration effects, creating points of mechanical stress with a large value in the area of crack formation. Vulnerabilities in the design of the electric motor frame have been identified. Options have been proposed for improving the design of the ventilation hatches of the frame, allowing reducing mechanical stresses with a constant area of the ventilation and inspection hatches.
Method of electric vehicle braking energy recovery
Authors: Barbashov Nikolay , Polyantseva Anastasia
Published: January 2024

Currently, the issue of the use of network power storage devices is increasingly being discussed. A promising technical solution is to combine a flywheel and a motor-generator motor on one shaft. Such an association can be called electromachine energy accumulators. Its main disadvantage should be considered the management difficulties. In this regard, it is possible to use an energy recovery system to reduce energy consumption and increase stability in the power grid. Such devices can reduce energy costs and increase the efficiency of vehicles. Such a solution can be useful and effective for the development of electric transport and reducing energy costs.
Failures and methods of ensuring the service life of friction discs of gearboxes
Authors: Vakhrushev Vladimir
Published: January 2024

The resource of a complex machine is determined by the resource of its units and components. As a result of the normal operation of energyintensive mobile vehicles of the K-7 series, it was established that the service life of the hydromechanical gearbox does not exceed 3000 engine hours, and the experimental probability of its failure is more than 0.55 of all machine units. The cause of failure of the hydromechanical gearbox is failure of the clutches and drive shaft. Failures of friction clutches are associated with significant overheating of the friction discs, their wear, welding and changes in spatial geometry. In the practice of normal operation of mobile machines, the drive shaft is repaired or replaced with a new one. Failure of friction discs occurs due to changes in spatial geometry (experimental probability of failure - 0.76), wear (experimental probability of failure - 0.63), destruction (experimental probability of failure - 0.38) and welding (experimental probability of failure - 0.34) friction discs. The work examines the use of the method of restoring friction discs by flat dimensional grinding, and conducts comparative life tests of restored friction discs.
Effect of undissolved gas on fluid bulk modulus
Authors: Troyakov Konstantin V. , Kaverzina Anna S. , Rybin Vyacheslav V. , Ivanov Alexey Yu. , Kardash Artem A.
Published: January 2024

This document describes the effect of undissolved gas on the bulk modulus of the fluid. The concept of liquid compressibility and dependence on composition, temperature and pressure is considered. Various methods of measuring the modulus of volumetric elasticity of the liquid were considered. It was also proposed to improve the mathematical model for calculating the module of volumetric elasticity of a liquid. The results of the study were used to plot the effect of the gas phase content modulus of volumetric elasticity of working fluid at different pressures. It was also concluded that the obtained values describe the need to equip hydraulic drives with devices for degassing working liquids.
Innovative solutions for a new technology of high-speed rail grinding
Authors: Ilinykh Andrey , Pikalov Alexander , Jurkova Elena
Published: January 2024

Ensuring the quality of rail grinding work today is an unsolved problem due to the large influence of the human factor in the design and implementation of rail grinding technological processes. The problem is solved through the development of a set of digital software modules, which are combined into a common control system for the rail grinding process. This system is designed to work as part of a rail grinding train and provide monitoring of the results of operations on mechanical processing of rails and, if necessary, adjustment of grinding modes. The main goals of creating the system are: ensuring the accuracy and quality of mechanical processing of rails by grinding, optimizing the time resource of the technological window provided for grinding rails and forming a database to increase the efficiency of planning work on grinding rails. The presented software package is currently being implemented by STU in the project to create a new rail grinding train PXP 2.0 together with JSC Kaluga Plant Remputmash.
Development of control system of isopentane-isoamylene fraction rectification column using neural network
Authors: Muravyova Elena , Grigorieva Tamara , Gaidukova Alexandra
Published: January 2024

This article presents the development of a neural network control system of a distillation column for the separation of isopentane-isoamylene fraction in order to increase the efficiency of control of rectification processes using intelligent technologies. The feasibility of using intelligent technologies to control the parameters of the column by using a neural network regulator is justified. The processing of research results was carried out using the software “MatLab.”
Theoretical aspects of designing an integrated management system of industrial, fire and environmental safety of the organization
Authors: Rashoyan Irina
Published: January 2024

The article considers the basic theoretical principles, methods and approaches for designing the integrated management system of industrial, fire, environmental and emergency safety of organizations (SMIS). It is shown that for development of all subsystems SMIS it is expedient to apply the processes “Plan-Do-Check-Act” (PDCA) and procedure of process approach applied in ISO. It is also proposed to build graphical diagrams for each process and operation SMIS design in accordance with the basic provisions of the IDEF0 methodology. Application of the above methods will allow the most effective distribution of resources, functional duties and responsibilities of personnel in the overall management system of the organization.
Parameters of technological machine roll contact curves
Authors: Bahadirov Gayrat , Aliboev Kakhramon , Absamatov Zukhriddin
Published: January 2024

The main parameters of the contact curve of each roll are its shape and length, and the extent of the slip and no-slip zones. Analytical dependencies were obtained that determine the parameters of the contact curves of the rolls of technological machines. It was revealed that at the beginning of the contact zone the skin points are distant from the roll covering point, in the zone at the end of the contact zone it is ahead of it. At the end of the contact zone, the angle between the corresponding points of the skin layer and the roller coating is equal to the modulus of the difference between the lag and advance angles.
Design and technology concepts in providing auxiliary track roadbed stability on permafrost
Authors: Neratova Oksana , Zhdanova Svetlana
Published: January 2024

The main reason for the loss of sustaining capacity in structures on permafrost is connected with settlements that take place in thawing soils of the roadbed in its enclosed spaces in the subgrade. The technogenic impact of the linear structures produces a thermal effect on the roadbed soils as the structures play an obstacle on the way of ground waters because the thermal conductivity of the structures’ soils is higher than that of the subgrade natural soils. Besides, the vibro-dynamic impact of traffic also leads to the thermal settlement of the roadbed first, and after 5-7 years it results in the plastic soil extrusion of high plasticity loose ground in a waterbearing subgrade (moss, turf, silt, ect.). Thus, the roadbed becomes stable after 16-19 years.
New engineering methods in snow removal of roofs by air jets
Authors: Simkin Yury , Saulova Tatyna , Bas Vitaly
Published: January 2024

The article provides a description of engineering methods that use the results of scientific research. The example given in the article shows how the use of such methods allows, in comparison with traditional ones, to use for clearing snow from the roofs of a building with a ridge length of 25.5 m instead of three rotary blowers, each weighing 1150 kg, electric motor power of 90 kW and an air capacity of 3132 m3/h, - 2 blowers weighing 204 kg each, electric motor power of 20 kW and productivity of 1110 m3/h. Such a snow removal installation does not require the presence of maintenance personnel on the roof, and no mechanical devices are used on the roof. The installation is controlled remotely.
Investigation of transportation infrastructure elements on the example of spherical bridge bearing
Authors: Bogdanova Anastasia , Kamenskikh Anna , Nosov Yuriy
Published: January 2024

Transportation infrastructure consists mainly of critical elements. They are subjected to a large set of requirements for strength, rigidity, reliability. The article considered deformation behavior of spherical bridge bearing at different introduction depth parameters of sliding layer. The influence of contact surface treatment on the character of contact parameters distribution is studied. Earlier the polymers and composites behavior was viewed as an elastic-plastic material. However, for predicting their life-cycle it is necessary to consider them as viscoelastic. The article compared the parameters obtained by modeling elastic-plastic and viscoelastic materials behavior. The influence of sliding layer thickness on the deformation structure behavior was also discussed. It is revealed that sliding layer modeling as an elastic-plastic body is sufficient for numerical calculations on determination of strength characteristics. However, it is necessary to consider the sliding layer as a viscoelastic/viscous-elasticplastic material to design the life cycle of the structure taking into account rheology, thermomechanics and cyclic loads in different directions.
Increasing the operational parameters of worm gears
Authors: Sukhanova Olga , Spirina Darya , Nikitina Liliya , Sobol Kseniya , Trifanov Ivan
Published: January 2024

An analysis of factors that reduce the operational parameters of worm gearboxes has been carried out. Equations for calculating the efficiency of a worm gear, contact pressure, and the residual service life are given. It is shown that the friction angle and friction coefficient depend on the material of the worm and wheel teeth, the roughness of the working surfaces of the worm pair matings, the quality of the lubrication, and the sliding speed. Significant contact pressures and friction losses in meshing lead to heat generation, a decrease in efficiency and service life of the worm gear. To produce a worm gear with a maximum radius of a conjugate globoid-cylindrical pair with an involute profile, it is proposed to use rotational turning of the globoid worm turns with a multi-blade forcedly rotating tool, and the wheel teeth with a hob cutter. A nickel antifriction solid lubricating coating containing carbon nanotubes has increased hardness and resistance to abrasion. A method for manufacturing a ZT-type worm gear is proposed, as well as methods that reduce contact stresses and the coefficient of friction during operation of a mating worm pair to increase the service life of worm gears.
Traditional and green approaches to the synthesis of copper-containing nanoparticles using chemical reduction
Authors: Morenko Ivan , Isaeva Irina , Odinokova Irina , Ostaeva Galina
Published: January 2024

The problem of obtaining copper-containing nanoparticles by chemical reduction has been studied. A comparison is made of traditional and “green” approaches to synthesis. The experimental data obtained during the synthesis of copper nanoparticles in the presence of a polymer stabilizer (polyvinylpyrrolidone) and a reducing agent (tert-butylamine-borane), as well as literature data on the synthesis of nanoparticles using plant and conditionally “green” substances (glucose, extracts of Ocimum sanctum and Celastrus paniculatus leaves, Sarcostemma acidum stem). The advantages and disadvantages of these approaches are identified and discussed. It is noted that the industrial applicability of “green” methods is limited due to the need to create completely new production of reagents for synthesis. In addition, the application of green synthesis is difficult due to scalability and standardization issues. Environmental pollution associated with the production of plant extracts also requires additional assessment. It has been established that traditional synthesis methods remain relevant for modern industry, and “green” methods have prospects for use in the distant future.
The testbed for definition of the exploit’s execution features to detect and score cyber attacks
Authors: Verevkin Sergei , Fedorchenko Elena
Published: January 2024

The paper considers the deployment of the testbed for definition of the exploit’s execution features to detect and score cyber-attacks. The paper describes the place of the proposed testbed in the approach to the cyber-attack detection and scoring. It defines the requirements to the testbed considering the introduced approach. The testbed infrastructure is defined and deployed considering the specified requirements. The introduced testbed infrastructure is justified. Finally, the technique of the testbed implementation for the feature extraction is introduced. The proposed testbed and technique allow combining advantages of the static and dynamic approaches to the exploits analysis and detecting and scoring known and previously unseen cyber-attacks.
Problems and prospects for the development of transport systems in Yakutia
Authors: Andreev Dmitriy
Published: January 2024

The article examines the characteristics of transport systems in Yakutia. The main properties and features of the transport and related infrastructure are highlighted. Key problems and prospects for further development of transport systems are analyzed. The author concludes that there is a need to solve existing transport problems gradually. At the same time, there are specific directions and prospects for further transformation and development of transport in the region. There are a number of program and regulatory documents that formulate goals and objectives related to the modernization of transport, the formation of new transport and related infrastructure. However, the development of transport in the region is quite expensive. The implementation dates of many projects are constantly postponed.
Algorithm for operational planning of transportation by machine shipments in long-distance traffic
Authors: Novokshonov Nikita , Mochalin Sergey , Shipitsyna Roksana , Ponomarev Nikolai , Pogulayeva Irina
Published: January 2024

Efficient operational planning of transportation is crucial in longdistance traffic, where the coordination of shipments plays a pivotal role in optimizing logistics operations. This article presents an algorithm designed to streamline the planning process for machine shipments in long-distance transportation. The algorithm leverages advanced optimization techniques and machine learning to address the complexities associated with route selection, scheduling, and resource allocation.
Integration of transport system management tasks
Authors: Mavzovin Vladimir , Klevanskiy Nikolay , Teterina Irina , Zagidullin Ramil , Zyryanov Vladimir
Published: January 2024

The article is devoted to the consideration of the actual problem of integration of transport system management tasks. The distribution of tasks on three levels of management – strategic, tactical and operational is considered. The purpose of the study is to present the results of structural modeling of transport system management tasks at different levels of management and to identify integrating elements. Structural modeling is carried out and five diagrams are presented, including two contextual ones. The schedule of regular passenger transport has been identified as an integrating element of the tactical level of transport system management. The developed structural diagrams show the feedback between the tactical and operational levels of transport system management. The conclusions and discussion of the results of the study are presented.
On the issue of developing urban infrastructure for electric vehicles
Authors: Nesterenko Grigory , Nesterenko Irina , Likhachev Dmitry , Yumagulova Venera , Bedenko Iraida , Khafizov Murad
Published: January 2024

The work is devoted to the development of infrastructure for recharging electric vehicles. The relevance of the use of electric vehicles and the need to provide means of recharging their batteries are considered. The article provides an economic justification for the use of electric vehicles in an urban environment. A concept has been proposed for using electric charging stations at night in the parking lots of apartment buildings. Recommendations and justification for the use of Mode 1 charging stations are given.
Overview of road safety activities
Authors: Nesterenko Grigory , Nesterenko Irina , Dorokhin Sergey , Korablev Ruslan , Lushpaeva Maria , Sakhapov Rustem
Published: January 2024

The review article is devoted to the issues of ensuring road safety. The work examines the main causes of road accidents. The work of technical means of ensuring traffic flows, such as traffic lights and road construction, is analyzed. The specifics of the organization of traffic in densely built urban environments are considered, which directly affects the safety of the transport process. An analysis of the factors influencing the provision of comfortable working conditions for drivers, ensuring their maximum concentration during the trip, was carried out. The means of maintaining the necessary microclimate in a vehicle and protecting drivers are described.
Impact of disequilibrium price on sales volume in a logistics system
Authors: Dulesov Aleksandr S. , Dulesova Natalja V. , Gimanova Irina А.
Published: January 2024

The question of the influence of the price set by the producer on the sales volumes in a logistics system with a linear structure is considered. The impact of price on sales volumes is considered from the perspective of removing the information uncertainty that occurs when analysing the balance between supply and demand of a probabilistic nature. The impact factor analysis is based on the total cost pricing method, which includes production costs and profits. The latter is determined on the basis of a markup factor calculation. Besides, the offered price, including the mark-up, is considered a constant over the allotted time interval, and its value must be in the seller's and buyer's area of interest. This approach has advantages over traditional pricing methods and is consistent with the Erow-Debre stabilityoriented pricing model. A description of the process of changing the markup rate within outlined limits, in which it varies according to the proposed sales volume, is presented. The price and sales volume limits are justified based on the possibility of using a «cognitive» approach. The demand functions for products and rate prices in the area of their possible «overlapping» when buying/selling in micro-markets are considered.