bluuebunny/crossref_metadata_2025 huggingface dataset:
Influence of the chemical composition of mulberry on the growth dynamics of silkworm larvae
Authors: Rajabov Narzulla , Umarov Shavkat , Islamov Sokhib , Nasirillaev Bakhtiyor
Published: May 2023

In countries where sericulture is well-developed, there is a pressing need to create new systems, varieties, and hybrids of the Morus alba L. species, which is the only food source for the mulberry silkworm Bombyx mori L. These new systems should be suitable for the care of silkworms, and their nutritional and chemical composition should be studied. The introduction of these new systems into production is considered a crucial problem that needs to be addressed. Research experiments were carried out in 2013-2017 at the Tashkent State Agrarian University and the Silk Research Institute. The results showed that in 2017, the new varieties contained 75.1-74.3% water, while in 2018, the water content was 76.0-77.3%. Meanwhile, the Tajikskaya bezsemyannaya variety showed an increase in this indicator, reaching 75.2-76.2%. However, these results were still lower than the benchmark of 98.8-101.4%. The amount of protein is one of the most important indicators of mulberry leaf composition.
Importance of new reforms in the agrarian sector in the stability of the economy
Authors: Sheripbaeva Umida , Galimova Firyuza , Dekhkanova Nilufar
Published: May 2023

The UN today emphasizes that it is time to completely change the approach to the production and distribution of food products, so that agriculture will develop in the direction of human interests and food will be provided to all [1-4, 7-9]. Today, the development of the agrarian sector, food security is one of the most urgent tasks facing the countries of the world. It is said that it can adequately feed people and give them a source of income. 40% of the world's population relies on the agricultural sector for their livelihood, making it the largest employment in the world. The global development of the agrarian sector and ensuring food security have become critical tasks facing countries today. The United Nations emphasizes the need for a complete transformation of the approach to the production and distribution of food products, with a focus on developing agriculture in line with human interests and providing food for all. The analysis of fruit and vegetable product exports in the Republic of Uzbekistan revealed that in 2021, a total of 1521.8 thousand tons of these products were exported, generating 957.3 million US dollars. In 2022, the volume of fruit and vegetable product exports increased to 1730.6 thousand tons, with a value of 1134.3 million US dollars. This represents a significant 18.5 percent increase in export value and a 13.7 percent increase in quantity compared to 2021.
Effect of parasitic entomophages in controlling plant lice pests in vegetable crops and their numbers
Authors: Kimsanbaev Khojimurad , Rustamov Adkham
Published: May 2023

The impact of pests and diseases on agricultural crops has been amplified due to global environmental changes, resulting in an estimated adverse effect of 1.4 trillion dollars, which is approximately 5% of the world's gross domestic product. Research was conducted on various species of parasitic entomophages, such as Aphidius matricaria Hal, Aphidius gifuensis Ashm, Lysiphlebus japonica Tokawa, Aphidius ervi Hal, Lysiphlebus fabarum Marsh, Lysiphlebus fritzmuelleri Mack, and Lysiphlebus testaceipes Creeson, to determine their efficacy in controlling plant lice. The biological efficiency of the parasite in Aphis craccivora was 52.5%. As well as Aphis gossypii Glow, Acyrthosiphon gossypii Glow. parasite infection of species was 42.1-38.4%. Praon volucre Hal parasite in Aphis craccivora was 49.6%. Aphis Gossypii Glow phytophage infestation was 56.3%, while Acyrthosiphon gossypii Glow plant aphid infestation with Praon volucre Hal was 42.4%.
Common wheat (triticum aestivum) selection for tolerance to soil salinity
Authors: Aberkulov Mardan
Published: May 2023

In the experiment, laboratory studies were conducted to evaluate the salt resistance of wheat samples. Different saline environments were created in laboratory conditions (0.5, 1.0 and 1.5% concentration of NaCe salt) and the seed germination of soft wheat varieties and samples, the length of seedlings and the number of roots were determined. It was noted that Khumo, Taraqqiyot, Emir, Pervitsa, Rhapsody, Zimnitsa, Drujba varieties are resistant to strong salinity, and samples with a fast and strong root system are more resistant to salinity. Uzbekistan rice farming scientific research institute Karakalpakstan branch Shurtanbai experience economy in the fields was conducted and in this 183 variety 13 samples were selected after studying their salt tolerance. Saline soil conditions Vegetation of samples period 10-12 to the day short being accumulation drastic in number noticed. Salted soil conditions grain shine gluten quantity and quality sharp decreased gone was determined..
Scientific and information support of animal husbandry - a tool to improve the efficiency of the industry in the republic of Kazakstan
Authors: Altaibayeva Zhanat , Shelomentseva Valentina , Aiguzhinova Dinara , Alimhanova Rosa
Published: May 2023

The purpose of considered research is to substantiate the need and determine the forecast of possible results of ensuring the availability of knowledge about modern technologies and results of scientific research in animal husbandry through scientific and informational support of agricultural products (based on training seminars). In the article the general state of animal husbandry in Kazakhstan is examined, the current problems of the industry development are identified, the relevance of animal husbandry’s development to ensure food security in conditions of decrease in business activity is substantiated. As a possible direction for the development of the industry, the realization of program “Information support of the subjects of the agro-industrial complex on a gratuitous basis” is considered. The authors considered the measures for the realization of program “Information support of subjects of the agro-industrial complex on a gratuitous basis” in 2020 for achievement of research purpose. The costs of scientific and informational support of entrepreneurs represent the state’s investments for these purposes. The authors summarized the forecast calculations of expected increase in cost of commercial livestock products using modern technological approaches to feeding, improving the structure of the herd, breeding, care and veterinary service, considered at special seminars for farmers. In the article the need for knowledge accessibility of modern technologies and scientific research on animal husbandry through scientific and practical seminars for agricultural producers is focused.
Improving business process management at a small agribusiness enterprise
Authors: Lozovaya Oksana , Martynushkin Alexey , Polyakov Mikhail
Published: May 2023

The purpose of the work was to generalize approaches used in creating maps of business processes at agro-industrial complex enterprises and the possibility of structural-branch formation of a model in sequential visualization of stages and all types of work for the main and auxiliary types of production for these organizations. Methods included analysis and synthesis, induction and deduction, abstract-logical and statistical methods, fundamentals of the scientific organization of labor by A.K. Gastev, E. Deming's decision-making methodology and T. Buzan's mind maps. Result and scope: the formation of a map of business processes by industry and in conjunction with all levels of management allows managers of small enterprises in the agro-industrial complex to strengthen control over the main and indirect problems, blocks of production and services, eliminate duplication in management and other operations, optimize linear-functional connections in the management structure. The use of operation modes with the creation of business cards based on achievements of management science and time management can and should be carried out on the job in the form of a continuous form of training. Scientific novelty concerned adaptation of methods and graphical techniques for working with goals, business processes, management solutions in small enterprises of the agro-industrial complex, where there is no position of a business process manager in the staff, but it is possible to use functional specialists and managers in their work to improve labor productivity and increase its efficiency by all categories of workers. Creation of a general model of business processes at an agro-industrial complex, linking all the necessary operations by industry into a single complex, creates a detailed layout of a software product for future developers of automated control systems and the introduction of digitalization, which can serve all processes in the enterprise continuously, efficiently and with better quality.
Characteristics of irrigated soils of Bukhara region intended for cotton sowing
Authors: Aripov B.F. , Akhmedova Z.R. , Farmonov B.B.
Published: May 2023

The work is devoted to the study of the characteristics of irrigated soils of the Zhondarsky district of the Bukhara region, intended for sowing cotton. The acreage allocated for the cultivation of agricultural crops should have appropriate indicators that ensure not only high yields, but also high-quality products. Since many soils of the territory of Uzbekistan, including the Bukhara oasis, are highly saline, research work was carried out on the territory. Along with the other twelve regions, the irrigated soils of the Bukhara region are moderately saline, although there are some farms in which the land is characterized by a high degree of salinity. Among the districts and cities with a high level of salinity, as an example, we can take the soils of the Karakul and Olot districts of the Bukhara oasis. Due to the fact that these areas are located in the desert zone of the region, the salinity level is high due to the low amount of precipitation. The indicators of the content of biogenic elements and the mineral composition of the studied soil samples, the total salt content in the composition of soil samples were studied. The content of soluble ions, the content and studies of the main elements that ensure soil fertility such as humus, phosphorus, nitrogen, potassium and their mobile forms, as well as concentrations of soluble salts in the form of anions, cations and macronutrients have shown that the studied soil belongs to the depleted type of sulfate-chloride salinization.
Monitoring carbon dioxide fluxes during fallow land conversion in the Subtaiga zone
Authors: Bobrenko Igor , Goman Natalia , Nezhevlyak Olga , Bobrenko Elena , Korzhova Lyudmila
Published: May 2023

The work is devoted to the study of the temporal variability of CO2 fluxes on fallow lands during their introduction into agricultural turnover. The aim was to determine the CO2 emissions of soil from fallow lands during their introduction into agricultural turnover by different technologies under the conditions of the subtaiga natural-climatic zone of the southern part of western Siberia. In 2022, scientific research was carried out on key plots of fallow lands in the subtaiga zone of the Omsk region. The soil of the fallow land plot is thick grey forest loamy (Luvic Greyzemic Phaeozems). It was established that technologies of fallow lands introduction into turnover have a significant impact on CO2 emission. Compared to the control, it has increased by 1.44 times in the subtaiga zone under agrotechnological technology (soil treatment) and by 1.27 times under combined technology (soil treatment + herbicide treatment). The materials are the basis for information-methodological support for greenhouse gas monitoring in the fallow lands of the territories of the south of western Siberia of Russia.
Geoecological principles of effective landscape organization of Karaulbazar district
Authors: Mirzoeva Istat , Bobomurodova Nargiza , Qalandarova Dilobar
Published: May 2023

Following article deals with the natural and economic-social features of Karaulbazar district analysis, including the landscape types of the district: porous sandstone clay, barren clay, sandy, oasis, watery, forest, gypsum-sandstone. As well as landscape types were studied, relevant conclusions were drawn.
Methods for controlling the strength properties of snow cover
Authors: Degtyarev A.I. , Rzhanitsyn G.A. , Koshurnikov A.V. , Gagarin V.E. , Frolov D.M.
Published: May 2023

The paper and the work are devoted to laboratory experiments on the controlling methods of compacting and obtaining strength properties of snow in the refrigerating room for snow cover engineering needs. The relation regulation of equivalent cohesion of obtained snow on its temperature and density was established.
Intelligent transportation systems as a factor of strategic transportation planning
Authors: Wajeetongratana Praphatsara
Published: May 2023

The use of Intelligent Transportation Systems (ITS) in motor vehicles is anticipated to dramatically enhance both traffic safety and mobility. Successful large-scale implementation of these systems depends critically on the enthusiasm of potential users to accept them. However, market segmentation has gotten surprisingly little attention at the current level of ITS technology development, despite the fact that it is required to capture the predicted variance in demands and expectations of drivers in various categories of age, gender, country, etc. Therefore, this study's major objective was to analyze how open drivers of different demographics would be to adopting a wide variety of ITS systems with promising future safety applications.Finding out what people in cars really required in the case of an accident was an important first step. It seems that in order for ITS technology to be broadly embraced, it will be necessary to meet the demands and expectations of a wide range of driver demographics. Surprisingly low adoption rates were seen for alcohol interlocks and electronic license keys despite their effectiveness in reducing road trauma and expenses. There has been some discussion about what these findings mean for the future of ITS.
Management factors that influence the transportation instructor quality development of Universities in Thailand
Authors: Potjanajaruwit Pisit
Published: May 2023

The purpose of this research was to investigate management factors that influence the transportation Instructor quality development of universities in Thailand. The studied population consisted of 560 administrators and lecturers by their respective positions (i.e. Dean, Head of Department, and full-time lecturers) from universities under the Ministry of Education. Data were analyzed using Stepwise Multiple Regression Analysis with F-statistics and Adjusted R2 to find the factors affecting transportation instructor quality development. The results revealed that factors such as organizational culture and learning organization have an influence on universities’ transportation instructor quality in terms of teaching and research at the 0.05 significance level. Therefore, there should be promotion of organizational cultures, including aspects such as participation, harmony, adaptibility, and mission-oriented mindsets, using them as guidelines for organizational management. At the same time, administrators at all levels should create awareness among the lecturers about the importance of developing academic performance and clarify the criteria.
Revitalizing the air transport in Thailand: the posterior pandemic
Authors: Tansiria Ekachat , Kankaew Kannapat , Paethrangsi Nisara , Komolvanij Theppaluk , Musikamas Pakamas
Published: May 2023

This academic article reviews the air transport in Thailand, specifically the situation and the outlook. The authors surveyed and collect the data from secondary sources both internally and internationally including the public sector annual report, private, and academicians. The situation has been predicted into three phase cases including; best case scenario, moderate, and worst-case scenario. Additionally, the service quality, the reskills and upskills for employee acquiring new skills, the organization transformation, and the technology adaptation are required. More importantly, the health safety plan and policies of air carriers shall be implemented and communicate to the public to assure their safe journey. Meanwhile, the adoption of technology could also minimize the repetitive work and human contact but it could provide new air travel experiences. The earliest the air transport industry was revitalized; it means the socioeconomic improvement.
Thainess in airlines services strategy: a case from Thailand
Authors: Suksudthi Thanasit , Kankaew Kannapat , Kuosuwan Bavornluck
Published: May 2023

The Thainess is embedded in Thais. And, it is more clearly can be seen when a person was cultivated in the school system. In this academic paper highlights the symbiosis of Thainess in hospitality industry, as such hotel comparatively to the air transport as strategy. The authors have studied researches, books, and airlines’ website strategies. Thainess is a unique customer experience offering, specifically the full-service airline “Thai Airways” as national flag carriers propose the service ‘Thai Touch’ through human six senses namely; seeing, smelling, savoring of teste, sounding, touching, and heartfelt feeling. While, Bangkok Airways represents the uniqueness of Thai culture symbiosis with products and services, such as airport terminal, aircraft decoration, and snack serving in all its lounges. On the other hand, low-cost carriers are commonly practicing the Thai culture in welcoming passengers as “wai”. Additionally, the low-cost carriers are presenting and blending their organizational culture in service, for instance fun, energetic, and friendly. Besides, low-cost airlines stress on price competition rather than Thainess. As an illustration, ThaiVietair excels on keen and dedicated workforces, prompt, reliable, and competitive price. As well as, Thai Lion Air presents the kebaya uniform which was originally from Indonesia.
The post pandemic air transport competitive advantages: new normal challenges of strategic human resource management (the case study of Bangkok Airways)
Authors: Charernnit Kanittha
Published: May 2023

The epidemic clearly proven that every industry of the economy should never undervalue external environment. Every business needs to be flexible and adaptable without losing sight of their primary objective of profitability. Whereas, internal organizational management needs to be strategically focused. In consequent, an effective management of human resources is essential to enhancing business operations. The air transport industry is particularly sensitive to environmental fluctuations. Therefore, this study emphasizes strategic human resource management to strengthen Thailand's aviation industry's competitive advantage characteristics in the modern period of the new normal culture. The data were collected by using a number of sample questionnaires, which collected from a ground staff employee of Bangkok Airways. In order to evaluate Bangkok Airways' level of human resource management and level of competitive advantage, the sample group of employees was divided into two groups. There are 585 persons in total between the first group of 310 employees as officer level and the second group of 275 supervisors and manager’s level. According to the research findings, in terms of factors influencing competitive advantage in strategic human resource management, Strategic Alignment (SA) is the most crucial element to be implemented.
Influence of coatings based on Zr and Ti on the wear resistance of cemented carbide tools when turning transport machines’ parts from structural steels
Authors: Fominov Evgeny , Aliev Mukharbii , Fisunova Elena , Shuchev Constantine , Metelkova Nadezhda
Published: May 2023

The influence of coatings based on titanium carbide and zirconium carbide, obtained by PVD method, on cutting tool wear resistance under conditions of the longitudinal turning of transport machines’ parts of steel 45 and stainless steel 12H18N10T by inserts of hard alloy grade T15K6 was investigated. It has been experimentally established that the presence and composition of the coating on the working surfaces of the tool in most cases contributes to a significant reduction in the intensity of wear of cemented carbide inserts. When turning stainless steel 12H18N10T, the best result was demonstrated by the coating ZrN + (Ti–Zr) N + TiN, which provided not only the minimum intensity of wear, but also the expansion of the range of optimal cutting speeds. When machining structural steel 45, the maximum reduction in the wear intensity of the cutting inserts was observed with the use of a single-layer TiN coating and a (Ti,Zr)N coating.
Industry 4.0 technologies as a driver of intelligent transport systems development
Authors: Drozdova Maria , Ignatushko Irina
Published: May 2023

The paper dicusses cutting-edge technologies for Industry 4.0 as the drivers of digitalization of transport and logistics ecosystems. It also analyzes these technologies in their practical implications for improving the efficiency of the industry and their alignment with intellectual priorities of digital economy development at both national and international levels. The article provides an analytical review of the current state and digital transformation of the transport and logistics industry, including the introduction of new digital technologies Industry 4.0, taking into account the existing geopolitical agenda.
Design of smart input devices
Authors: Kozhubaev Yuriy , Belyaev Viktor , Korobitcyna Mariia , Zhiligotov Ruslan , Yiming Yao
Published: May 2023

As the size of the chip is getting smaller and the processing speed is getting faster and faster, various smart products are also constantly being upgraded. Multimedia is widely used in teaching. Traditional laser pointers can no longer meet people's needs. Electronic stylus chips can enhance the interaction between human and computer. The smart electronic stylus uses a gyroscope and accelerometer to collect position and speed information, then transmits the information to the smart display device via Bluetooth.
Effective organization of technologies for speeding up freight transportation in railway transport
Authors: Qobulov Jamshid , Barotov Jamshid
Published: May 2023

The modern measures necessary to elihourate the stopping of cars during the delivery of cargo have been analyzed the regulatory and legal framework for the delivery of goods by rail. A mathematical model was developed for the relationship between the daily run of wagon consignments and the distance of transportation on the basis of drawing up a technological scheme that takes into account the entire sequence of operations performed with wagons along the route. This made it possible to deterhoure the impact of the delivery of goods “just in time” on operational standards, taking into account the features of technological processes of railway transport. The authors have developed a formula for determining the total number of operations from the train station to the specified stations, as well as the scheme of calculation of railway carriages from the waggages to the designated station.
Calculation-empirical estimation of the vertical dynamic coefficient in the event of additional oscillations of the car
Authors: Martynenko L.V.
Published: May 2023

According to the results of derailment investigations, the ensuring of train traffic safety was found to be a paramount and urgent task. The growth of freight density and speed of movement on the railway network leads to a significant increase in the number of damaged wheels and rails and, as a result, to an increase in the level of force interaction during load transfer, which provokes the likelihood of a wagon derailment. The operation safety level of rolling stock on railways is determined mainly by the presence of a car derailment stability margin, which depends on the vertical dynamics and the coefficient kdv, which changes throughout the entire time of movement and, accordingly, on the technical condition of the car and the track as a whole. The vertical addition to each element of this “wheel-rail” system depends on many factors, therefore, the level of operational safety of the car, as a mechanical system, is determined mainly by its sprung and non-sprung car parts. The calculation schemes used to study the stability of unperturbed motion are non-linear systems. Non-linearities occur due to the gaps in axle boxes, side bearings and similar connections, non-linearity of the interaction forces of wheels with rails and, at present, also in some types of spring suspension. When moving in a curve, the cart is known to perform a complex movement. The rotation and transverse displacement of the bogie is prevented by frictional forces between the wheels and the rails. The bogie is affected by a part of the centrifugal force, unbalanced by the elevation of the outer rail and depending on the speed of movement, as well as by the guiding force from the side of the outer rail. It is known the process of a car movement results in the appearance of horizontal transverse (relative to the direction of movement) forces, which are determined by the level of interaction between the wheel flanges and the rails. The nature of the perturbed movement of the car leads to the appearance of horizontal transverse with respect to the axis of the path of movement. At relatively low speed, the forces that arise after wearing out of the gaps in the track and when the wheel flanges rest against the rail heads, at a certain level of irregularities, are not dangerous for the wheel-rail system. But with an increase in the speed of the car, these forces increase so that there is a threat to traffic safety as the likelihood of derailment increases.
The existing influence of means of individual mobility on the speed indicators of urban traffic flow
Authors: Jung Anastasia , Shevtsova Anastasia
Published: May 2023

This article presents the results of assessing the impact of means of individual mobility on the indicators of traffic flow by finding the dependencies of the speed of traffic flow on the number of SIM on the road network (UDS) in the morning rush hour, evening rush hour and inter-peak [1]. The purpose of the study is to obtain real values of the speed of the traffic flow for further analysis and comparison, which in the future will allow us to understand how the number of means of individual mobility [2] affects this value (study of the speed indicators of the traffic flow as a result of changes in its composition, taking into account the appearance of SIM). It is proposed to use a method for finding intermediate values, namely the interpolation method of the Lagrange polynomial. With its help, it is possible to find the values of the speed of the traffic flow.
Fire resistance limit for wood constructions in high-rise buildings
Authors: Eremina Tatiana , Korolchenko Dmitry
Published: May 2023

A significant problem in the construction area in the Russian Federation is a ban on high-rise wooden buildings. To solve this problem, it is necessary to study the state of the issue in the world and in the Russian Federation, and analyze the development prospects of this area. The necessity to optimize the existing methods for testing wooden building structures is shown. Examples of various documents regulating the production and use of wooden and composite building structures are given. The work reflects in detail the international experience in the implementation of the main provisions of regulatory documents and European tests for fire resistance, which shows the possibility of implementing such an experience in the Russian Federation. To develop a regulatory framework for wood structures in high-rise construction, it is necessary to conduct large-scale experiments on wooden structures to study their fire resistance. In this case, it is necessary to take into account the features of combustible building materials.
Coloristic properties of decorative aluminum coatings applied by cold gas dynamic spraying (CGDS)
Authors: Dudnik Marina , Zhukova Lubov
Published: May 2023

When making objects of environment design with metal coatings, it is important to consider not only the protective properties of the coatings, but also the decorative ones. The use of aluminum CGDS coatings with subsequent tinting on metal environment design castings will not only increase the corrosion resistance of artistic products, but also give them new aesthetic qualities.
Measurements of building structures
Authors: Norin Veniamin
Published: May 2023

The construction and operation of buildings and structures suggest taking measurements to determine accurate dimensions, shape, and mutual location of all structural elements. This is one of the most popular surveying services. All types of outlines (lineal, curvilinear, bevelled) and surfaces in both plan and elevation are subject to measurements and dimensioning. Depending on the goals that are set during measuring activities, measurement activities differ in the degree of accuracy and completeness. Building measurements are done to find their actual geometric characteristics and possible deviations from the project documentation for buildings and structures. Measurements are done to find structural dimensions, cross-section of individual elements, distances between structures in plan and height, elevations, and other parameters. This results in measurement diagrams. The article overviews existing measurements: schematic, architectural, and archaeological. Various measurements methods are considered: in-situ (conventional), photogrammetric, and geodetic. Their advantages and disadvantages are described. A measurement method is selected based on certain features of the surveyed facility. Sometimes all possible methods are combined to obtain accurate data.
Determination of the effectiveness of the production process of winter concreting based on field studies
Authors: Khubaev Alan
Published: May 2023

This article considers the process of formation of the term “winter concreting production potential”. Approaches to the formation and use of the term “potential” in the scientific environment are analyzed. Goals and objectives are formulated, and the methodology for collecting and processing data on the results of field studies is created. A quantitative indicator for assessing the effectiveness of organizational and technical decisions, as well as the measurement scale to translate the qualitative assessment of each factor into a quantitative one was introduced. Developed a tool to regulate the management of data collection at the sites for further processing in the form of a map of management of data collection at the sites. Also, a questionnaire was made, filled in during the data collection process for further processing. In order to process the data obtained during field studies, a Construction Site Analysis Questionnaire was developed. The results of the field studies of 152 objects are presented. The basis for the mathematical apparatus characterizing the value of “production potential of winter concreting” was prepared.
The role of theater architecture in music education
Authors: Xiaoxiao Song
Published: May 2023

The article examines the role of theater architecture in music education. It is determined that the study of theatrical architecture is an important part of obtaining musical education, especially for those who plan to become a professional musician. As part of music education, students can study theater architecture and its impact on musical performances. It should also be noted that music education necessarily includes the development of the general culture of students, for this reason, the architectural features of theater buildings can contribute to the development of the general culture of students.
Coloristic properties of decorative copper coatings applied by cold gas dynamic spraying
Authors: Dudnik M. , Zhukova L. , Gordin Y.
Published: May 2023

The results of the coloristic properties research of art items with copper coatings applied by cold gas-dynamic spraying (CGDS), as well as the color determination technique, allowing to improve the approach to the decoration and restoration of art items, are presented. This allows us to study the quantitative properties of the color of decorative surfaces, which largely determines the quality and aesthetic properties of coatings and their subsequent decorative treatment.
Computer modeling of robotic systems made of composite materials, analysis of the stress-strain state under dynamic influences
Authors: Khayrnasov Kamil , Sokolskiy Anton , Isaev Vladimir , Sapronov Daniil
Published: May 2023

In the present study, a robotic system is considered: a multi-stage semi-natural simulation stand. The stand is designed to simulate the flight characteristics of aircraft instruments in laboratory conditions. The use of such stands can significantly reduce the cost of developing and testing aircraft instruments and contains all the attributes of robotic systems, which allows the developed method of computer modeling and analysis of stands to be applied in the field of robotic systems. The problem is solved by the finite element method. As a result of the study, a technique has been developed for approximating parts that carry out movements: gear rims, bearings, gearboxes, motors in the finite element method. Comparison with the available experimental studies showed the effectiveness of the developed methodology. As the stand material, a composite material is used, which has a high specific strength, which makes it possible to change the physical and mechanical characteristics depending on the location of the composite base in the layers of the multilayer composite structure. A technique has been developed for arranging the base layers in a multilayer composite to obtain maximum strength and rigidity of the stand, which is one of the main factors in the efficiency of the stand. The analysis of the behavior and stress-strain state of the bench under dynamic impact has been carried out.
Additive manufacturing technology of concrete products
Authors: Ushakov Andrej , Мinaeva Аnna , Matorin Andrey
Published: May 2023

The article analyzes the use of 3D-printing technologies in the construction industry. The main trends in the development of this area related to the development of modern software for 3D printers, printer designs and forming extrusion heads of printers, and also to the development of formulations of building mixes used for 3D printing are noted. The relevance of the use of 3D printing technologies using concrete is conditioned by the creation of unique structural elements, objects of landscape gardening architecture or buildings. From the point of view of building materials science, this task includes considering technological factors, and, in particular, the requirements for the concrete mixture. The special attractiveness of these technologies is associated with the possibility of carrying out work on a construction site, with a high degree of mechanization of processes and with an increasing of labor productivity when performing construction and installation work. The purpose of the research described in the article is to develop a methodology for the selection of modifying additives and reinforcing fibers from the condition of obtaining products with the maximum coefficient of structural quality. The article outlines the features of the selection of the composition of concrete for the construction 3D printing. This mixture must have sufficient mobility for pumping it through pipes, set quickly and have good strength characteristics.
Structural features of buildings from metal structures
Authors: Mamin Aleksander , Kodysh Emil , Bobrov Vladimir , Dolgova Tatyana , Bushuev Nikolay
Published: May 2023

The article is devoted to the issue of preserving the architectural heritage of the outstanding Russian engineer V.G. Shukhov. Three objects are considered: the Moscow Radio Tower on Shabolovka, the “Shukhov Prolet” of the Sheet Rolling Shop and the Water Tower, located in the city of Vyksa, Nizhny Novgorod Region. The main design parameters of these structures and the results of their technical examination, the emergency response measures taken to ensure the safety of the Radio Tower in Moscow, and recommendations for the restoration of all three structures with the transfer of the Sheet Rolling Shop and the Water Tower to the central part of Vyksa are presented. It is planned to reconstruct the historical appearance of the buildings, as well as to improve the surrounding area. It is supposed to restore the geometric shape of the section by laser deposition of powder metal, and only if it is impossible to restore the element, its replacement is provided. To preserve the historical appearance, the joints of steel structures will be bolted, imitating rivets. In the course of excavation, archaeological research is planned, since within the boundaries of the construction site (the city of Vyksa) there may be areas of preserved cultural strata of the cultural heritage site “Estate-industrial complex, XVIII-XIX centuries”.
Calculation for the progressive collapse of the steel frame based on the shutdown of an element of the structural scheme
Authors: Linkov Nikolay
Published: May 2023

Reliability of a building object - the ability of a building object perform the required functions during the estimated service life. In this case, the structure may experience a special limit state after exceeding the limit of the bearing capacity in the first and deformability in the second limit states, in which they do not fully comply with the functional requirements; further increase in loads and impacts leads to their destruction. The assumed initial local destruction implies the removal of a bearing structural element, simulating the loss of bearing capacity and stability, as well as leading to a change in the structural design of the structure. As a result of the damage received, a progressive avalanche collapse can occur in the form of the destruction of load-bearing building structures, leading to the collapse of the entire building or structure or its parts due to the initial local destruction.
Peculiarities of calculation and design of smooth orthotropic panels with considering geometric nonlinear behavior
Authors: Mitrofanov O. , Toropylina E. , Belyaeva Svetlana , Chulenyov Anatoly
Published: May 2023

When calculating the stability and bearing capacity of the panels of the caisson of the wing of an aerospace aircraft, it is necessary to take into account the presence of a heat-shielding coating, which also acts as an elastic base (EB) for the skin. The subject of this work is thin smooth orthotropic rectangular panels with an elastic base that does not perceive compressive and shear flows acting on the panel. The aim of the work is to develop methods for evaluating and designing composite panels associated with an elastic foundation, taking into account the possible geometrically nonlinear behavior under loads close to the design level. Note that the indicated level of loading can be realized only in full-scale static tests in the experimental justification of the strength of the wing structure. The paper presents analytical solutions of a geometrically nonlinear problem by the Bubnov-Galerkin method for rectangular orthotropic panels, taking into account the ER under the action of compressive and tangential forces. Based on the solutions obtained, methods for determining the thicknesses of orthotropic panels are proposed, taking into account two possible criteria: either reaching the ultimate strength stresses in a possible supercritical state, or reaching the limiting values of the deflection amplitude with geometrically nonlinear behavior. The last specified condition is a consequence of the requirements for the strength of the adhesive bond between the orthotropic skin and the heat-shielding layer. The paper considers smooth rectangular orthotropic panels with rigid support along the long sides and hinged support along the short sides.
Multifunctional basis of urbanization as a modern trend in the development of society
Authors: Manukhina Lyubov , Prykina Larisa
Published: May 2023

The article considers the main features of urbanization, its impact on modern society, the tasks that need to be solved in the process of urbanization. Possible ways of controlling this process are presented. In the modern era of socio-economic transformations and scientific and technological progress, the growth and development of cities, that is, the process of urbanization, is becoming increasingly important in the life of society. The study of the prerequisites and current trends associated with the process of urbanization is important for solving theoretical and practical problems aimed at improving the residential area and the urban environment.
Analytical study of the actual cost of the completed overhaul of multi-apartment residential buildings in Russia
Authors: Fatullaev R. , Bidov T. , Shesterikova Y. , Nikolenko D.
Published: May 2023

This paper examines the distinctive features of the pricing system when planning and carrying out overhaul in multi-apartment residential buildings. The authors analyzed the data posted in public resources, after which they were optimized in terms of sufficiency for further research. Due to the qualitative heterogeneity of the data, a unified unit of measure was proposed and introduced for the present value of the overhaul works. To select data and determine their stable relationships in a series, calculations of absolute and relative indicators of variation were performed. The results of the study showed that the coefficient of variation of the average present costs of overhaul of apartment buildings within the framework of the totality of the constituent entities of the Russian Federation is equally homogeneous and heterogeneous for various types of work. It was found that for certain types of work, cost indicators have a stable average, while for others it is impossible to single out this indicator.
An approach to creating a thinking process in systems empowered with intelligence using 3D environments
Authors: Skuliabina Olga , Petrova Kristina , Nass Oksana , Bapiyev Ideyat , Vakhitova Aizada , Baigubenova Saya
Published: May 2023

The study is aimed at solving the problem of thinking and the sources of building thought processes in systems empowered with intelligence as one of the fundamental steps to the creation of artificial intelligence. Artificial intelligence performs creative functions traditionally considered human prerogative, using computer programs to understand human intelligence and not being limited to biologically plausible methods. In this regard the evolution of a traditional computer program into a system capable of self-creation is being implemented, depending on the conditions of the external and internal events and processes. The article authors present a number of intermediate results of the research in the field of advanced technologies and artificial intelligence achieved on the basis of experiments run on the study of the semantic structures construction – sources aimed at shaping a thinking process in systems empowered with intelligence. The research carried out by the authors of the article contributes to building of basic algorithms as a parametrically polymorphic system. Scheme of one of the main functions of the master algorithm is presented. An array of constructions, semantically related and called by a route determined by a vector, the direction of which is aimed at minimal costs winning, which together act as the fundamental method for creating a master algorithm.
Energy efficient indoor wireless communication techniques based on BLE technology
Authors: Kozhubaev Yuriy , Ovchinnikova Elena , Krotova Svetlana , Ivanov Vyacheslav , Ruide Yang
Published: May 2023

The paper presents the design of a wireless communication system for short-range, high-speed, and multi-node information acquisition based on BLE5.0 technology, targeting indoor wearable applications. The system employs the Nordic nRF52832 microcontroller, which integrates BLE5.0 transceivers, as the core, and includes designs for master-slave node communication, data acquisition, hardware circuitry, embedded and upper computer programs. The system is validated through upper computer software for device networking, multi-node data acquisition, and communication speed. The power consumption and communication distance of the devices are tested using a measurement device. The designed multi-node BLE5.0 communication system in this paper provides a technical foundation for the design of relevant short-range IoT applications and has broad application prospects.
Development of modification of the post-quantum public-key cryptosystem NTRUENCRYPT
Authors: Lyashenko Nikita , Cherckesova Larisa , Revyakina Elena , Medvedev Dmitry , Gavlitsky Alexander
Published: May 2023

This work is devoted to the development of a modification of the post-quantum public-key cryptosystem NTRUEncrypt. Given that two main requirements for modern cryptographic algorithms are resistance to attacks (including quantum attacks) and performance, the developed modification offers an improvement in both aspects. Karatsuba algorithm for fast polynomial multiplication is employed to achieve better performance. The modification also includes additional protection against a chosen ciphertext attack that can be effectively against standard NTRUEncrypt. Performance test of the developed modification confirmed that less time is required for key generation, encryption and decryption in comparison with the classical algorithm. The modified algorithm is then applied to implement an asymmetric encryption system with a graphical user interface that allows establishing communication between two users with resistance to both classical and quantum attacks.
Power-supply enterprises cyber security and IT-immunity in the Customs Union countries
Authors: Pletnev Dmitri , Vikulin Sergey , Shchelkanogov Pavel , Pletnev Alexandr
Published: May 2023

It is important for power supply firms to remain immune to rapidly emerging cybersecurity threats. These can be acts of a hooligan nature, and an attempt to steal data and money, and even cases of electronic terrorism. To counter these threats, power supply companies must take care of their cyber security and prevent possible threats. The paper aims to assess the main cyber security risks and consider their relevance to the cases of specific energy sales companies of the companies of the Customs Union countries. The paper analyzes the trends and the current structure of cyber threats, on the example of power supply companies of the countries of the Customs Union, using the original methodology, assessed IT immunity, and the main vectors of threats. The directions for further research aimed at preventing cyber threats for energy sales companies are formulated.
Computer simulation of electrophysical effects in CAD chip design
Authors: Antsiferova Valentina , Grosheva Ekaterina , Ivanova Anna , Abrosimova Ivanna
Published: May 2023

The article discusses the characteristics and functions of modern systems for computer-aided design of submicron microcircuits. The main developers of this class of systems are Cadence Design Systems, Mentor Graphics and Synopsys. The paper analyzes in sufficient detail the composition and functionality of software tools for the development of electronic equipment provided by these companies and allowing solving functionally different tasks within the framework of the VLSI design route. The electrophysical effects of the submicron level are analyzed, which include dynamic effects associated with parasitic parameters, crosstalk, signal stability, ohmic busbar voltage drop, electromigration, and local heating of the crystal.