Herald of the Kazakh-British technical university最新文献_第8页

LINK PREDICTION USING TENSOR DECOMPOSITION 使用张量分解的链路预测

Herald of the Kazakh-British technical university Pub Date : 2023-07-02 DOI: 10.55452/1998-6688-2023-20-2-92-102

A. E. Aliturliyeva

{"title":"LINK PREDICTION USING TENSOR DECOMPOSITION","authors":"A. E. Aliturliyeva","doi":"10.55452/1998-6688-2023-20-2-92-102","DOIUrl":"https://doi.org/10.55452/1998-6688-2023-20-2-92-102","url":null,"abstract":"In recent years, tensor decomposition has gained increasing interest in the field of link prediction, which aims to estimate the likelihood of new connections forming between nodes in a network. This study highlights the potential of the Canonical Polyadic tensor decomposition in enhancing link prediction in complex networks. It suggests effective tensor decomposition algorithms that not only take into account the structural characteristics of the network but also its temporal evolution. During the process of tensor decomposition, the initial tensor is decomposed into two-way tensors, also known as factor matrices, representing different modes of the data. These factor matrices capture the underlying patterns or relationships within the network, providing insights into the structure and dynamics of the network. For evaluation, we examine a dataset derived from the WSDM. After preprocessing, the data is represented as a multi-way tensor, with each mode representing different aspects such as users, items, and time. Our primary objective is to make precise predictions about the links between users and items within specific time periods. The experimental results demonstrate that our approach significantly improves prediction accuracy for evolving networks, as measured by the AUC.","PeriodicalId":447639,"journal":{"name":"Herald of the Kazakh-British technical university","volume":"213 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121240307","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}

引用次数: 0

ANALYSIS OF OPTIMIZED MANHOLE COVERS MADE OF GLASS-REINFORCED POLYESTER (SMC) THROUGH BENDING TESTS AND FINITE ELEMENT SIMULATIONS 通过弯曲试验和有限元模拟分析了优化后的玻璃钢(smc)井盖

Herald of the Kazakh-British technical university Pub Date : 2023-07-01 DOI: 10.55452/1998-6688-2023-20-2-13-26

M. S. Temіrhan

{"title":"ANALYSIS OF OPTIMIZED MANHOLE COVERS MADE OF GLASS-REINFORCED POLYESTER (SMC) THROUGH BENDING TESTS AND FINITE ELEMENT SIMULATIONS","authors":"M. S. Temіrhan","doi":"10.55452/1998-6688-2023-20-2-13-26","DOIUrl":"https://doi.org/10.55452/1998-6688-2023-20-2-13-26","url":null,"abstract":"This scientific article is devoted to the study and modeling of composite manhole covers made of polyester fiberglass, which are an alternative to traditional metal covers. These substitutes were introduced due to the problems associated with corrosion and theft of steel and cast iron manhole covers, as well as their insufficient resistance to chemicals. Manhole covers made from fiber reinforced plastic have a number of advantages over traditional metal covers. They provide a high strength-to-weight ratio, making them easy and comfortable to install. This material also has a high resistance to corrosion, which greatly extends its service life. Despite the advantages of composite manhole covers, studies related to their mechanical testing and simulations remain insufficient. This article presents the results of a study in which a manhole cover was made from two layers of polyester sheet press material using an additional stiffener. Then, bending tests were carried out, and the results were analyzed using finite element method (FEM) simulation. The purpose of this study was to confirm the validity of the model built for composite manhole covers, as well as to compare the results with experimental data on deformations. The results obtained are of great practical importance for the further development and optimization of the design of composite manhole covers, as well as for improving their reliability and durability.","PeriodicalId":447639,"journal":{"name":"Herald of the Kazakh-British technical university","volume":"128 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132654517","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}

引用次数: 0

NANOPARTICLE SYNTHESIS BY THE PECVD METHOD BASED ON RF DISCHARGE 基于射频放电的pecvd法制备纳米颗粒

Herald of the Kazakh-British technical university Pub Date : 2023-07-01 DOI: 10.55452/1998-6688-2023-20-2-6-12

B. Zharylgapov, S. Orazbayev

{"title":"NANOPARTICLE SYNTHESIS BY THE PECVD METHOD BASED ON RF DISCHARGE","authors":"B. Zharylgapov, S. Orazbayev","doi":"10.55452/1998-6688-2023-20-2-6-12","DOIUrl":"https://doi.org/10.55452/1998-6688-2023-20-2-6-12","url":null,"abstract":"This scientific paper presents the results of the study of the synthesis of carbon nanoparticles in radio-frequency ( RF ) discharge plasma at low pressures in a vacuum apparatus. The growth of carbon nanoparticles was studied under different plasma parameters, such as variation of self-displacement voltage, temperature, and discharge power. The experiment was performed in the pressure range of 0.5-1.1 mbarr and powers of 6-20 W. The results showed that the synthesis time of carbon nanoparticles, including their formation and growth, depends on the plasma parameters. Small changes in temperature, pressure, and plasma power can significantly change the growth and formation of nanoparticles. An important conclusion of this work is that increasing the temperature of the plasma-forming gas leads to an increase in the formation time of carbon nanoparticles. The dependences of nanoparticle growth on the discharge power, selfdisplacement voltage on the discharge pressure, and temperature on the discharge power were also obtained. The results obtained provide valuable information for understanding and controlling the synthesis process of carbon nanoparticles in the plasma environment. This is important for various technological applications, including nanoelectronics and catalysis.","PeriodicalId":447639,"journal":{"name":"Herald of the Kazakh-British technical university","volume":"40 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115916750","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}

引用次数: 0

FORMATION OF CRYSTALLINE SiC IN NEAR-SURFACE SILICON LAYERS BY METHOD OF COORDINATED SUBSTITUTION OF ATOMS 用原子配位取代的方法在近表面硅层中形成晶体SiC

Herald of the Kazakh-British technical university Pub Date : 2023-07-01 DOI: 10.55452/1998-6688-2023-20-2-27-35

K. Nussupov, N. Beisenkhanov, S. Kukushkin, A. Sultanov, S. Keiinbay, D. S. Shynybayev, A. Z. Kusainova

{"title":"FORMATION OF CRYSTALLINE SiC IN NEAR-SURFACE SILICON LAYERS BY METHOD OF COORDINATED SUBSTITUTION OF ATOMS","authors":"K. Nussupov, N. Beisenkhanov, S. Kukushkin, A. Sultanov, S. Keiinbay, D. S. Shynybayev, A. Z. Kusainova","doi":"10.55452/1998-6688-2023-20-2-27-35","DOIUrl":"https://doi.org/10.55452/1998-6688-2023-20-2-27-35","url":null,"abstract":"In this work, monocrystalline films of silicon carbide were synthesized on the surface of a Si(100) silicon wafer using the method of coordinated substitution of atoms. The films were synthesized at temperatures of 1200 °C and 1300 °C for 20 minutes in a CO gas flow at a pressure of 0.8 Pa. The effect of 1200–1300 °C temperatures on the formation of single- and polycrystalline layers, as well as nanostructured SiC phases in the near-surface region of silicon by the method of atom substitution, is analyzed. The formation of a high-quality crystalline silicon carbide film and the influence of synthesis conditions on the total volume of SiC structural phases, microstructure and nanostructure of the surface are shown. It was found that an increase in temperature from 1200 °C to 1300 °C led to a more intensive formation of silicon carbide and an increase in the number of Si–C bonds by 1.9 times due to an increase in the thickness of the synthesized silicon carbide layer. There is an increase in the proportion of the crystalline phase due to a more intense transformation of the nuclei of nanocrystals into micro- and nanocrystals. Intense processes of penetration of carbon atoms deep into silicon at a temperature of 1300 °C with amorphization of its structure and the formation of Si-C, which can transform into crystalline phases at temperatures above 1300 °C, are assumed. The proportion of the SiC crystalline phase increases to 50.2% of the film volume due to the intensive transformation of nanocrystal nuclei into micro- and nanocrystals. It has been experimentally shown that the formation of various SiC structures on Si (100) occurs in full accordance with the main principles of the method of coordinated substitution of atoms.","PeriodicalId":447639,"journal":{"name":"Herald of the Kazakh-British technical university","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132465378","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}

引用次数: 0

ALMOST 1-TRANSITIVITY IN LINEARLY ORDERED STRUCTURES 线性有序结构中的几乎1-传递性

Herald of the Kazakh-British technical university Pub Date : 2023-04-01 DOI: 10.55452/1998-6688-2023-20-1-6-13

B. Kulpeshov, S. Sudoplatov

{"title":"ALMOST 1-TRANSITIVITY IN LINEARLY ORDERED STRUCTURES","authors":"B. Kulpeshov, S. Sudoplatov","doi":"10.55452/1998-6688-2023-20-1-6-13","DOIUrl":"https://doi.org/10.55452/1998-6688-2023-20-1-6-13","url":null,"abstract":"The present paper concerns the notion of weak o-minimality introduced by M. Dickmann and originally deeply studied by D. Macpherson, D. Marker, and C. Steinhorn. Weak o-minimality is a generalization of the notion of o-minimality introduced by A. Pillay and C. Steinhorn in series of joint papers. As is known, the ordered field of real numbers is an example of an o-minimal structure. We continue studying model-theoretic properties of o-minimal and weakly o-minimal structures. In particular, we introduce the notion of almost 1-transitivity in linearly ordered structures and study tits properties. Almost 1-transitive o-minimal and weakly o-minimal linear orderings have been described. It has been established that an almost 1-transitive weakly o-minimal linear ordering is isomorphic to a finite number of concatenations of almost 1-transitive o-minimal linear orderings. Properties of expansions of families of almost 1-transitive linearly ordered theories are studied. Rank values for families of almost 1-transitive o-minimal and weakly o-minimal linear orderings have been found. A criterion for preserving both the almost 1-transitivity and weak o-minimality has been found at expanding an almost 1-transitive weak o-minimal theory by an arbitrary unary predicate. Dense ordering of an almost 1-transitive weakly o-minimal theory that is almost omega-categorical has been established.","PeriodicalId":447639,"journal":{"name":"Herald of the Kazakh-British technical university","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134501287","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}

引用次数: 0

INVESTIGATION OF THE PROPERTIES OF MICROPARTICLES IN THE GLOW DISCHARGE STRATUM IN A CROSSED ELECTRIC AND MAGNETIC FIELD 电磁场交叉作用下辉光放电层中微粒特性的研究

Herald of the Kazakh-British technical university Pub Date : 2023-04-01 DOI: 10.55452/1998-6688-2023-20-1-38-44

A. Abdirakhmanov, R. Masheyeva

引用次数: 0

MOBILITY EMBEDDING FROM CALL DATA RECORD USING WORD2VEC TO SUPPORT NETWORK WITH UNMANNED AERIAL VEHICLE 利用word2vec从呼叫数据记录中嵌入移动性，支持无人机网络

Herald of the Kazakh-British technical university Pub Date : 2023-04-01 DOI: 10.55452/1998-6688-2023-20-1-45-53

Imed Eddine Semassel, Sadok Ben Yahia

引用次数: 0

ON THE EXISTENCE OF UNIVERSAL NUMBERINGS 关于普遍编号的存在性

Herald of the Kazakh-British technical university Pub Date : 2023-04-01 DOI: 10.55452/1998-6688-2023-20-1-14-20

D. D. Nurlanbek

引用次数: 0

CREATION OF A MODEL INSTALLATION FOR CONDUCTING STUDIES OF EXTERNAL AND INTERNAL CORROSION OF PIPE STEEL IN LABORATORY CONDITIONS 创建一个模型装置，用于在实验室条件下进行钢管外部和内部腐蚀的研究

Herald of the Kazakh-British technical university Pub Date : 2023-04-01 DOI: 10.55452/1998-6688-2023-20-1-21-29

A. G. Didukh, D. B. Abdukhaly`kov, S. Omirbekov, B. A. Imashev, B. K. Aty`mtaeva

{"title":"CREATION OF A MODEL INSTALLATION FOR CONDUCTING STUDIES OF EXTERNAL AND INTERNAL CORROSION OF PIPE STEEL IN LABORATORY CONDITIONS","authors":"A. G. Didukh, D. B. Abdukhaly`kov, S. Omirbekov, B. A. Imashev, B. K. Aty`mtaeva","doi":"10.55452/1998-6688-2023-20-1-21-29","DOIUrl":"https://doi.org/10.55452/1998-6688-2023-20-1-21-29","url":null,"abstract":"The article describes a model laboratory installation for conducting studies of hydrodynamic parameters, testing of gel pistons, additives and inhibitors, studies of external and internal corrosion of pipe steel, operation of the electrochemical protection (ECP) system, soil composition and properties. A feature of the installation is its multitasking with a wide range of simultaneous and separate studies, simulating the technology of pipeline transport. The degree of influence of additives on rheological parameters or corrosion inhibitors, the assessment of internal corrosion is carried out in the test medium - oil / oil mixture / water / oil-water mixture. Studies of the activity of external corrosion on the pipeline are carried out by selecting the parameters of the ECP system and the state and quality of the protective coating on the pipeline section immersed in the ground. In this case, it is possible to use soils from various sections of pipelines with different corrosive activity, as well as changes in their physical and chemical properties - humidity, salt content. Preliminary data on the influence of soil moisture on its electrical resistivity and metal corrosion rate are presented, the results of which correlate with field studies.Further research will make it possible to reproduce conditions close to real during the transportation of oil and water in order to assess and determine the optimal modes of transportation and technologies for protecting pipelines from corrosion in order to achieve optimal technical and economic indicators for production.","PeriodicalId":447639,"journal":{"name":"Herald of the Kazakh-British technical university","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129831651","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}

引用次数: 0

INFLUENCE OF THE COMPOSITION AND HEATING TEMPERATURE ON THE FLOW OF THE MIXTURE OF OIL OF THE WEST KAZAKHSTAN/MANGYSHLAK/AKTOBE FIELDS AND OIL FIELDS OF THE KUMKOL GROUP TREATED WITH THE DEPRESSANT ADDITIVE 抑制剂添加剂对西哈/曼吉什拉克/阿克托别油田和kumkol组油田混合油流动的影响

Herald of the Kazakh-British technical university Pub Date : 2023-04-01 DOI: 10.55452/1998-6688-2023-20-1-30-37

A. G. Diduh, G. A. Gabsattarova, L. E. Boranbaeva, E. Blagih

{"title":"INFLUENCE OF THE COMPOSITION AND HEATING TEMPERATURE ON THE FLOW OF THE MIXTURE OF OIL OF THE WEST KAZAKHSTAN/MANGYSHLAK/AKTOBE FIELDS AND OIL FIELDS OF THE KUMKOL GROUP TREATED WITH THE DEPRESSANT ADDITIVE","authors":"A. G. Diduh, G. A. Gabsattarova, L. E. Boranbaeva, E. Blagih","doi":"10.55452/1998-6688-2023-20-1-30-37","DOIUrl":"https://doi.org/10.55452/1998-6688-2023-20-1-30-37","url":null,"abstract":"The article presents the results of the study of the influence of the composition and temperature of heating on the flow of the mixture of oil of West Kazakhstan/Mangyshlak/Aktobe fields (transported through the main pipeline «Kenkiyak-Kumkol») and oil fields of Kumkol group (treated with depressant); degree of rheological reduction depends on heating temperature, wax and asphalt-resin content and cooling conditions, and paraffin oils have an optimal heating temperature, where the heat treatment effect is greatest. This temperature is always higher than the melting point of the paraffins in the oil. At the same time, the most favorable conditions are created for dendritic crystallization of paraffin with the formation of the least stable structure. When heating high-frozen oil below the melting point of paraffins, there may be a sharp deterioration of the rheological parameters of the oil due to the formation of a solid fine-crystalline structure; the results of the physical-crystalline research are obtainedthe chemical and rheological properties of the oil mixture of ZKNS-Kumkol formulations 30-70 and 40-60% have shown that the negative effect from heating to 35 and 45 oC must be taken into account when deciding on the use of oil heating technology to improve transmission modes, because this will lead to deterioration of rheological properties of oil and will reduce the effectiveness of the depressant additive (which is used to process the Kumkol component of the oil mixture). In order to improve the flow of the oil mixture ZKNS-Kumkolskaya can consider the possibility of heating the oil up to 55 oC, or increasing the share of the West Kazakhstan component along with the absence of heating of the oil mixture (mixing of components at actual temperatures).","PeriodicalId":447639,"journal":{"name":"Herald of the Kazakh-British technical university","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125473931","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}

引用次数: 0