Pub Date : 1900-01-01DOI: 10.32523/2616-7263-2021-134-1-39-49
R. Lukpanov, D. Dyussembinov, D. Bazarbayev, D. Tsygulyov, S. Yenkebayev
The article proposes an impregnation composition for cement concrete roads used to improve the ice-phobic properties of the pavement. The composition is based on the keratin production technology. The distinctive component of the composition is the addition of water-soluble polymers. One of the study criteria was to evaluate the performance of the impregnation composition, its adhesion resistance to mechanical impact. Tests were conducted for large samples (surface area 1925 cm2) in laboratory conditions with the application of vibration and shock loads. The test results showed the effectiveness of the ice-resistant coating, as in all experiments the uncoated specimens showed greater resistance of the ice crust to mechanical stress.
{"title":"Impregnation composition for cement-concrete road pavement to improve its ice-phobic properties","authors":"R. Lukpanov, D. Dyussembinov, D. Bazarbayev, D. Tsygulyov, S. Yenkebayev","doi":"10.32523/2616-7263-2021-134-1-39-49","DOIUrl":"https://doi.org/10.32523/2616-7263-2021-134-1-39-49","url":null,"abstract":"The article proposes an impregnation composition for cement concrete roads used to improve the ice-phobic properties of the pavement. The composition is based on the keratin production technology. The distinctive component of the composition is the addition of water-soluble polymers. One of the study criteria was to evaluate the performance of the impregnation composition, its adhesion resistance to mechanical impact. Tests were conducted for large samples (surface area 1925 cm2) in laboratory conditions with the application of vibration and shock loads. The test results showed the effectiveness of the ice-resistant coating, as in all experiments the uncoated specimens showed greater resistance of the ice crust to mechanical stress.","PeriodicalId":168248,"journal":{"name":"BULLETIN of L.N. Gumilyov Eurasian National University. Technical Science and Technology Series","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133867117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.32523/2616-7263-2021-137-4-7-17
A. Aniskin
The two types of custom housings for the maturity sensor made of twocomponent plastic were proposed and subjected to durability testing in this study. The first rectangular housing was made of two parts connected by 6 screws and waterproofed with rubber. The second housing was made keg-shaped with a cylindrical keg and screw-on cap. The housings were tested for water resistance, integrity when dropped, and load resistance on three sides using an electromechanical press-machine. At compression tests, both housings demonstrated fairly acceptable resistances, ranging from 0.6 to 2.11 kPa. If referring to the weight applied, it may be supposed that the housings may bear from 65.3 to 165.3 kg depending on the sides, on which the loads are applied. The integrity tests did not cause notable damage on both types of housings, while the water-resistance test revealed the weakness of rectangular housing that failed the test at 3 days of submerging. Comparatively, the cylindrical housing turned out to be more reliable, since its average resistance deviation on all sides appeared to be twice less than those in rectangular one. Moreover, the keg-shaped housing turned out to be waterproof, less material, and labor-intensive.
{"title":"Development and testing of the concrete maturity sensor housing","authors":"A. Aniskin","doi":"10.32523/2616-7263-2021-137-4-7-17","DOIUrl":"https://doi.org/10.32523/2616-7263-2021-137-4-7-17","url":null,"abstract":"The two types of custom housings for the maturity sensor made of twocomponent plastic were proposed and subjected to durability testing in this study. The first rectangular housing was made of two parts connected by 6 screws and waterproofed with rubber. The second housing was made keg-shaped with a cylindrical keg and screw-on cap. The housings were tested for water resistance, integrity when dropped, and load resistance on three sides using an electromechanical press-machine. At compression tests, both housings demonstrated fairly acceptable resistances, ranging from 0.6 to 2.11 kPa. If referring to the weight applied, it may be supposed that the housings may bear from 65.3 to 165.3 kg depending on the sides, on which the loads are applied. The integrity tests did not cause notable damage on both types of housings, while the water-resistance test revealed the weakness of rectangular housing that failed the test at 3 days of submerging. Comparatively, the cylindrical housing turned out to be more reliable, since its average resistance deviation on all sides appeared to be twice less than those in rectangular one. Moreover, the keg-shaped housing turned out to be waterproof, less material, and labor-intensive.","PeriodicalId":168248,"journal":{"name":"BULLETIN of L.N. Gumilyov Eurasian National University. Technical Science and Technology Series","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116310617","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.32523/2616-7263-2021-136-3-67-73
A. Kadyrov, A. Ganyukov, K. Balabekova
In many large cities and megacities, the number of cars increases every day due to the increase in the population. According to statistics, there are two cars per house. In this regard, there are large traffic jams on the streets. Traffic jams cause environmental and economic damage to the city's economy. Harmful gases released from the car have a negative impact on the environment and lead to global warming. To solve this problem, there is proposed a mobile overpass based on tank overpasses. The mobile overpass is quickly assembled and prevents congestion, thanks to the movement of cars on two levels. The mobile overpass is based on an orthotropic slab. Orthotropic is a plate consisting of transverse stops and longitudinal beams welded to the surface of the flooring. In this article, there is calculated an orthotropic plate for strength, stability, and stability using the finite difference method.
{"title":"Calculation of a mobile overpass using the finite difference method","authors":"A. Kadyrov, A. Ganyukov, K. Balabekova","doi":"10.32523/2616-7263-2021-136-3-67-73","DOIUrl":"https://doi.org/10.32523/2616-7263-2021-136-3-67-73","url":null,"abstract":"In many large cities and megacities, the number of cars increases every day due to the increase in the population. According to statistics, there are two cars per house. In this regard, there are large traffic jams on the streets. Traffic jams cause environmental and economic damage to the city's economy. Harmful gases released from the car have a negative impact on the environment and lead to global warming. To solve this problem, there is proposed a mobile overpass based on tank overpasses. The mobile overpass is quickly assembled and prevents congestion, thanks to the movement of cars on two levels. The mobile overpass is based on an orthotropic slab. Orthotropic is a plate consisting of transverse stops and longitudinal beams welded to the surface of the flooring. In this article, there is calculated an orthotropic plate for strength, stability, and stability using the finite difference method.","PeriodicalId":168248,"journal":{"name":"BULLETIN of L.N. Gumilyov Eurasian National University. Technical Science and Technology Series","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116044551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.32523/2616-7263-2021-137-4-29-38
G. Tolegenova, V. Zhmud, A. Zakirova, M. Kalimoldayev
In parallel with the development of technology, the need for electricity is rapidly increasing, and not only production, but also energy distribution is becoming an important issue. Consequently, the progressive demand for reliability, productivity, safety, environmental friendliness and energy stability is piling up the circuits of electrical networks. They are creating an intelligent energy system, which is now commonly known as the concept of "smart grids". This article presents an overview of «Smart Grids» with their features and various aspects in the field of electricity distribution. Intelligent electrical networks and their development are considered. In addition, this article is devoted to the analysis of intelligent electrical networks, the advantages of their introduction into the daily lives of consumers. The prospects of the stages of development of «Smart grids» in most countries of the world were considered, as well as some foreign projects aimed at improving energy efficiency and the functioning of smart electric networks.
{"title":"Smart Grid technology. Prospects for the development of electric networks","authors":"G. Tolegenova, V. Zhmud, A. Zakirova, M. Kalimoldayev","doi":"10.32523/2616-7263-2021-137-4-29-38","DOIUrl":"https://doi.org/10.32523/2616-7263-2021-137-4-29-38","url":null,"abstract":"In parallel with the development of technology, the need for electricity is rapidly increasing, and not only production, but also energy distribution is becoming an important issue. Consequently, the progressive demand for reliability, productivity, safety, environmental friendliness and energy stability is piling up the circuits of electrical networks. They are creating an intelligent energy system, which is now commonly known as the concept of \"smart grids\". This article presents an overview of «Smart Grids» with their features and various aspects in the field of electricity distribution. Intelligent electrical networks and their development are considered. In addition, this article is devoted to the analysis of intelligent electrical networks, the advantages of their introduction into the daily lives of consumers. The prospects of the stages of development of «Smart grids» in most countries of the world were considered, as well as some foreign projects aimed at improving energy efficiency and the functioning of smart electric networks.","PeriodicalId":168248,"journal":{"name":"BULLETIN of L.N. Gumilyov Eurasian National University. Technical Science and Technology Series","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127989937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.32523/2616-7263-2021-137-4-58-63
R. Rakhimov
Switchgears are an integral part of the energy industry of the Republic of Kazakhstan, which include substations, electrical installations, power transmission lines and other facilities. Currently, they are undergoing physical and moral wear and tear. The growth of production capacities of industry and the population emphasizes the need for intensive development of the energy complex using the technologies of the XXI century, while maintaining a technological balance between traditional energy and renewable energy sources [4]. The concept of development of the fuel and energy complex of the Republic of Kazakhstan until 2030 fully reflects these tasks and development approaches. In addition, the construction and reconstruction of distribution networks are due to the growth of a total load of consumers, which, even now, continues to increase rapidly. Concrete used in construction is an integral part of all types of construction and installation work. Thus, the concrete mixture used in the construction of energy facilities must have special properties and moisture-resistant characteristics, allowing you to solve specific energy problems, which include: reliability, durability, low electrical conductivity and other characteristics of concrete structures. High indicators of the above requirements are imposed in the places of installation of current-limiting reactors at electrical substations.
{"title":"On the importance of moisture-resistant properties of concrete in the construction of current-limiting reactors of a substation","authors":"R. Rakhimov","doi":"10.32523/2616-7263-2021-137-4-58-63","DOIUrl":"https://doi.org/10.32523/2616-7263-2021-137-4-58-63","url":null,"abstract":"Switchgears are an integral part of the energy industry of the Republic of Kazakhstan, which include substations, electrical installations, power transmission lines and other facilities. Currently, they are undergoing physical and moral wear and tear. The growth of production capacities of industry and the population emphasizes the need for intensive development of the energy complex using the technologies of the XXI century, while maintaining a technological balance between traditional energy and renewable energy sources [4]. The concept of development of the fuel and energy complex of the Republic of Kazakhstan until 2030 fully reflects these tasks and development approaches. In addition, the construction and reconstruction of distribution networks are due to the growth of a total load of consumers, which, even now, continues to increase rapidly. Concrete used in construction is an integral part of all types of construction and installation work. Thus, the concrete mixture used in the construction of energy facilities must have special properties and moisture-resistant characteristics, allowing you to solve specific energy problems, which include: reliability, durability, low electrical conductivity and other characteristics of concrete structures. High indicators of the above requirements are imposed in the places of installation of current-limiting reactors at electrical substations.","PeriodicalId":168248,"journal":{"name":"BULLETIN of L.N. Gumilyov Eurasian National University. Technical Science and Technology Series","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130027740","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.32523/2616-7263-2022-138-1-34-43
G. Itybayeva, G. M. Bazhenov, A. Kasenov, A.S. Yanushkin, K. Abishev
The article discusses the issues of sheet glass processing and provides information about the application, advantages, disadvantages and technological capabilities. The technological parameters of waterjet processing that affect to the cutting quality: the jet speed, the grain size of the abrasive, the angle of jet inclination, the distance from the nozzle to the treated surface. The water cutting method or waterjet cutting can significantly increase the speed and quality of material cutting. From an economic point of view, the consumption of material and energy is significantly reduced (by 20-30%), due to the use of water energy as the cutting tool in this method. The consumable material is only water and abrasive material. By modeling, when using software, it is proved that during waterjet cutting, lower stresses are formed in the glass compared to mechanical roller cutting, thereby ensuring minimal heat generation and accurate cutting with an edge roughness of Ra 1.6 microns.
{"title":"Processing of flat glass","authors":"G. Itybayeva, G. M. Bazhenov, A. Kasenov, A.S. Yanushkin, K. Abishev","doi":"10.32523/2616-7263-2022-138-1-34-43","DOIUrl":"https://doi.org/10.32523/2616-7263-2022-138-1-34-43","url":null,"abstract":"The article discusses the issues of sheet glass processing and provides information about the application, advantages, disadvantages and technological capabilities. The technological parameters of waterjet processing that affect to the cutting quality: the jet speed, the grain size of the abrasive, the angle of jet inclination, the distance from the nozzle to the treated surface. The water cutting method or waterjet cutting can significantly increase the speed and quality of material cutting. From an economic point of view, the consumption of material and energy is significantly reduced (by 20-30%), due to the use of water energy as the cutting tool in this method. The consumable material is only water and abrasive material. By modeling, when using software, it is proved that during waterjet cutting, lower stresses are formed in the glass compared to mechanical roller cutting, thereby ensuring minimal heat generation and accurate cutting with an edge roughness of Ra 1.6 microns.","PeriodicalId":168248,"journal":{"name":"BULLETIN of L.N. Gumilyov Eurasian National University. Technical Science and Technology Series","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129549253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.32523/2616-7263-2021-134-1-79-90
B. Akhmetov, M. Shalabayeva
The current regulations provide a procedure for notification of the occurrence of railway emergencies, but do not define a procedure for responding to such situations. This can be explained by the fact that such situations are very diverse in nature and scale, as well as in the way they are handled. However, the more urgent is the need for a certain classification, typification of ways to respond to them. In connection with the above, the article shows that in the event of occurrence of WD AS, the head of the operational headquarters in complex conditions of lack of complete and sufficient information on cause-and-effect relations between components of such a situation should take a certain number of individual, collegial, information, organizational, operational decisions aimed at coordination, coordination and management of subordinate control points and response units, which may exceed his ability to make such decisions and / or influence their validity.
{"title":"Mathematical support for railway emergency response","authors":"B. Akhmetov, M. Shalabayeva","doi":"10.32523/2616-7263-2021-134-1-79-90","DOIUrl":"https://doi.org/10.32523/2616-7263-2021-134-1-79-90","url":null,"abstract":"The current regulations provide a procedure for notification of the occurrence of railway emergencies, but do not define a procedure for responding to such situations. This can be explained by the fact that such situations are very diverse in nature and scale, as well as in the way they are handled. However, the more urgent is the need for a certain classification, typification of ways to respond to them. In connection with the above, the article shows that in the event of occurrence of WD AS, the head of the operational headquarters in complex conditions of lack of complete and sufficient information on cause-and-effect relations between components of such a situation should take a certain number of individual, collegial, information, organizational, operational decisions aimed at coordination, coordination and management of subordinate control points and response units, which may exceed his ability to make such decisions and / or influence their validity.","PeriodicalId":168248,"journal":{"name":"BULLETIN of L.N. Gumilyov Eurasian National University. Technical Science and Technology Series","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128977318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.32523/2616-68-36-2020-131-2-112-120
Sadykova S., Moldaliyeva G.
{"title":"Modern principles of the formation of eco-farm architecture","authors":"Sadykova S., Moldaliyeva G.","doi":"10.32523/2616-68-36-2020-131-2-112-120","DOIUrl":"https://doi.org/10.32523/2616-68-36-2020-131-2-112-120","url":null,"abstract":"","PeriodicalId":168248,"journal":{"name":"BULLETIN of L.N. Gumilyov Eurasian National University. Technical Science and Technology Series","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124637560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.32523/2616-7263-2019-127-2-95-99
G. Tyutebayeva, A. Aldiyarova
{"title":"Improving the ecology of Almaty when using gas turbine installation at Almaty TPP-1","authors":"G. Tyutebayeva, A. Aldiyarova","doi":"10.32523/2616-7263-2019-127-2-95-99","DOIUrl":"https://doi.org/10.32523/2616-7263-2019-127-2-95-99","url":null,"abstract":"","PeriodicalId":168248,"journal":{"name":"BULLETIN of L.N. Gumilyov Eurasian National University. Technical Science and Technology Series","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126835834","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1900-01-01DOI: 10.32523/2616-7263-2022-141-4-74-86
T. Inerbaev, A. Abuova, A. Dauletbekova, F. Abuova, B. Zhuman
The influence of a change in the Ga content on the magnetostrictive properties of the Fe3Ga alloy with the D03 structure has been studied by density functional theory methods. The change in the stoichiometry of the alloy under study was carried out by replacing the Fe atoms with Ga. The replacement leads to a significant change in the electronic structure of the systems under study, which leads to a significant increase in the density of electronic states near the Fermi level. This effect leads to an increase in the magnetoelastic energy, which leads to an increase in the value of the magnetostrictive coefficient λ001. A further increase in λ001 occurs due to a decrease in the shear modulus, which occurs due to an increase in the number of loosening bonds in the system with an increase in the Ga content. The resulting dependence of λ001 on the Ga content, although they show an increase in the absolute value of the coefficient λ001, but give its negative values, in contrast to the positive value of magnetostriction observed in the experiment. Solving the problem of matching the sign of the theoretical and experimental values of the magnetostrictive coefficients requires further research.
{"title":"Electronic structure modification and negative magnetostriction in Fe-Ga alloy of D03 structure with Ga content variation","authors":"T. Inerbaev, A. Abuova, A. Dauletbekova, F. Abuova, B. Zhuman","doi":"10.32523/2616-7263-2022-141-4-74-86","DOIUrl":"https://doi.org/10.32523/2616-7263-2022-141-4-74-86","url":null,"abstract":"The influence of a change in the Ga content on the magnetostrictive properties of the Fe3Ga alloy with the D03 structure has been studied by density functional theory methods. The change in the stoichiometry of the alloy under study was carried out by replacing the Fe atoms with Ga. The replacement leads to a significant change in the electronic structure of the systems under study, which leads to a significant increase in the density of electronic states near the Fermi level. This effect leads to an increase in the magnetoelastic energy, which leads to an increase in the value of the magnetostrictive coefficient λ001. A further increase in λ001 occurs due to a decrease in the shear modulus, which occurs due to an increase in the number of loosening bonds in the system with an increase in the Ga content. The resulting dependence of λ001 on the Ga content, although they show an increase in the absolute value of the coefficient λ001, but give its negative values, in contrast to the positive value of magnetostriction observed in the experiment. Solving the problem of matching the sign of the theoretical and experimental values of the magnetostrictive coefficients requires further research.","PeriodicalId":168248,"journal":{"name":"BULLETIN of L.N. Gumilyov Eurasian National University. Technical Science and Technology Series","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127604521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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