Herald of the Kazakh-British technical university最新文献

{"title":"Analytical approach for inverse problems theory applications towards determination of thermophysical characteristics of soil","authors":"A. Sinitsa, A. Capsoni","doi":"10.55452/1998-6688-2022-19-4-34-41","DOIUrl":"https://doi.org/10.55452/1998-6688-2022-19-4-34-41","url":null,"abstract":"Current paper presents analytical expressions received for investigation of determination of thermophysical characteristics of soil applying the theory of inverse problems. There was considered experimental design with exact measurements and constructed mathematical model for considered case. The analytical expression for transient one-dimensional temperature field was received by Laplace transform. Additional data, such as the heat flux at inlet domain received by conducting numerical simulation of the heat source via computational model. Presented analytical expression for heat transfer parameter allows to determine the soil thermal property without loss of precision, which is crucial in agricultural field. Paper discusses posed peculiarities considered for the inverse problem methodology along with derivation stages of analytical expression. The analytical expression for proposed model is presented both in the frequency and real time domain by applied direct and inverse Laplace transform. The measured outlet input data is interpolated further by the 8-th order polynomial and presented with approximation residuals.","PeriodicalId":447639,"journal":{"name":"Herald of the Kazakh-British technical university","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124713401","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}

{"title":"Physico-mechanical and physico-chemical hardening process changing research in gypsum binder and transition in gypsum-cement binder and then to gypsum-cement-pozzolanic using with mechanical tests and x-ray spectroscopy","authors":"D. S. Odintsov, A. Suvorov, Z. Estemesov, A. V. Barvinov, M. Panigrahi","doi":"10.55452/1998-6688-2022-19-4-6-16","DOIUrl":"https://doi.org/10.55452/1998-6688-2022-19-4-6-16","url":null,"abstract":"Gypsum-Cement-Pozzolanic binder (GCPB) has been invented in 60-s of last century in USSR by group of scientists under Mr. A. Volzhenskiy leadership. In that time in USSR and actually in US construction technological processes of civil and industrial buildings increasing a lot. So demand of cement for heavy concretes as a main component high up day to day, year to year. But realisation of that idea in practical way wasn’t easy thing because as we know from «Material science» course – cement is hydraulic binder which hardening in moisture condition or in must cases in water and if we sae about gypsum is an air binder. That means gypsum is hardening and gets its high compression strength in air condition and loosing that strength in moisture condition or under influence of water. After analysing knowledge that have been written above about GCPB we may stay some problems in front of us: 1) First problem connect with modern theoretical physical-mechanical and physical-chemical researches absence, when GCPB hardening process have been described by modern X-Ray spectroscopy and mineralogical analysis. All what we have found in internet resources is basic and theoretical issue with some mechanical tests. 2) Also the main problem when we start see on that researches and mechanical tests, there are some conflicting things as links for technical requirements of GCPB through ages, storage conditions before tests. So according by what we have said above we choose some targets of our research: a) How gypsum binder’s physical-mechanical characteristics going to change as it would be main stuff for GCPB preparing. And also transition process gypsum binder(GB) in gypsum-cement binder (GCB) and then in gypsum-cement-pozzolanic binder (GCPB); b) How gypsum binder’s physical-chemical characteristics going to change during transition process in GCB and then into GCPB with X-Ray spectroscopy analysis.","PeriodicalId":447639,"journal":{"name":"Herald of the Kazakh-British technical university","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132190733","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}

{"title":"On distributions of countable models for constant expansions of the dense meet-tree theory. I","authors":"A. B. Dauletiyarova","doi":"10.55452/1998-6688-2022-19-4-27-33","DOIUrl":"https://doi.org/10.55452/1998-6688-2022-19-4-27-33","url":null,"abstract":"We study all possible constant expansions of the structure of the dense meet-tree ⟨М; <, П⟩ [3]. Here, a dense meet-tree is a lower semilattice without the least and greatest elements. An example of this structure with the constant expansion is a theory that has exactly three pairwise non-isomorphic countable models [6], which is a good example in the context of Ehrenfeucht theories. We study all possible constant expansions of the structure of the dense meet-tree by using a general theory of classification of countable models of complete theories [7], as well as the description of the specificity for the theory of a dense-meet tree, namely, some distributions of countable models of these theories in terms of Rudin– Keisler preorders and distribution functions of numbers of limit models. In this paper, we give a new proof of the theorem that the dense meet-tree theory is countable categorical and complete, which was originally proved by Peretyat’kin. Also, this theory admits quantifier elimination since complete types are forced by a set of quantifier-free formulas, and this leads to the fact that it is decidable","PeriodicalId":447639,"journal":{"name":"Herald of the Kazakh-British technical university","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133848823","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}

{"title":"Features of the implement of cadmium-based Electroplating coatings","authors":"G. Sdikova, A. Z. Shamilova","doi":"10.55452/1998-6688-2022-19-4-17-26","DOIUrl":"https://doi.org/10.55452/1998-6688-2022-19-4-17-26","url":null,"abstract":"The rapid economic, scientific and technical development of the Republic of Kazakhstan in order to achieve the modern level of technological development requires a wide production of metal products and equipment using technically and economically effective methods. For this purpose, one of the main ways of producing corrosion-resistant and efficient metal products and parts is cadmium plating. Cadmium plating is flexible, easily amenable to rolling, stamping, bending, freshly prepared sheathing is better welded on acid-free fluxes than zinc. A study of the technology of cadmium tape made of stainless steel grade 2X18Н10T. A comparative analysis of the types and composition of cadmium electrolytes was carried out. The factors affecting the quality of the resulting packaging are investigated, the calculation of the observed main indicators of products after electrolysis is carried out. It is established that the quality of the coating undergoes changes depending on the composition of the electrolyte, its temperature and current density. The surfactant contributed to the production of a durable packaging layer with the possibility of increasing potency during use. Including work with such surfactants as dextrin, gelatin, carpentry glue. It was seen that the cadmium-coated tape has no gloss unless a surfactant is used. It was found that when the current is overvoltage, the tape is covered with fine-grained granules and darkens. When the tape was cadmated, the cadmium layer deposited on the surface of the tape increased with increasing time.","PeriodicalId":447639,"journal":{"name":"Herald of the Kazakh-British technical university","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129340070","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}

{"title":"Ranks for families of regular graph theories","authors":"N. Markhabatov, S. Sudoplatov","doi":"10.55452/1998-6688-2022-19-3-54-59","DOIUrl":"https://doi.org/10.55452/1998-6688-2022-19-3-54-59","url":null,"abstract":"This article deals with families of regular graph theories. Using invariants of regular graph theory, a criterion for e-minimality, a-minimality, and α-minimality of subfamilies of the family of all regular graph theories is obtained. These ranks and degrees play a similar role for families of theories with hierarchies for definable theories, such as Morley's Hierarchies for a fixed theory, although they have their own peculiarities. The rank of families of theories can be thought of as a measure of the complexity or richness of these families. Thus, by increasing rank by expanding families, we produce richer families and get families with infinite rank, which can be considered \"rich enough\". The ranks for families of the theory of regular graphs with finite and infinite diagonals are described. The family of all regular graph theories has infinite rank. This follows from the fact that if a language consists of m-ary symbols, m≥2, then the family of all theories of the given language has an infinite rank. This also means that the family of all regular graph theories is not e-totally transcendental. The results obtained can be considered as a partial answer to the question posed in [5].","PeriodicalId":447639,"journal":{"name":"Herald of the Kazakh-British technical university","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132822407","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}

{"title":"Determination of biomarkers of buckwheat honey By solid-phase microextraction in order to establish authenticity","authors":"M. R. Mamedova, A. Orynbassar, M. Alimzhanova","doi":"10.55452/1998-6688-2022-19-3-23-32","DOIUrl":"https://doi.org/10.55452/1998-6688-2022-19-3-23-32","url":null,"abstract":"Honey production in our country has increased compared to the last decade. East Kazakhstan, Almaty and South Kazakhstan regions are the main producers of honey. The floral diversity of our country makes it possible to obtain many types of monofloral honey and several combinations of polyfloral honey. Floral origin is one of the most important factors influencing the honey market. Monofloral honey is more popular among consumers due to its taste, special characteristics and is more profitable for producers due to its high price. Darker honey (buckwheat honey) usually contains high amounts of antioxidants, which increase its health potential. Food control is a major factor for consumers who want to know that their purchases are of high quality. To ensure that the actual composition of the products indicated on the label, analysis and development of effective methods of analysis is necessary. Therefore, the aim of this study is to identify biomarkers of buckwheat honey by vacuum solid phase microextraction (vac-SPME) in combination with gas chromatography-mass spectrometry (GC-MS).","PeriodicalId":447639,"journal":{"name":"Herald of the Kazakh-British technical university","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134577808","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}

{"title":"Methods of feasibility study of efficiency of well placement of horizontal directional wells within oil and gas reservoir bed boundaries. Jsc embamunaigas success experience were taken for analysis","authors":"A. M. Yessirkeyev, G. Y. Teleev","doi":"10.55452/1998-6688-2022-19-3-60-69","DOIUrl":"https://doi.org/10.55452/1998-6688-2022-19-3-60-69","url":null,"abstract":"This article describes the positive experience of applying an integrated approach in planning and drilling horizontal wells with geosteering in the fields of Embamunaigas JSC (most of which have entered the late stage of development, with a steady increase in hard-to-recover hydrocarbon reserves) in order to achieve maximization of oil production. In this article we present a comprehensive horizontal well placement approach which comprises the following key elements: Interpretation of 3D seismic and the use of logs of nearby wells and a 3D static model for well trajectory planning; following a pre-agreed geosteering procedure while drilling, on-site analysis of cuttings and LWD data to adjust the well trajectory and, thereby, optimize well placement. The extent of field development drilling activity of the objects, production drilling of the main development object and the need of horizontal section well placement in the area of the existing element of the development of the object impose certain restrictions on the drilling of horizontal wells. Well placement is one of the best solution to increase production and extend of brawn field life.","PeriodicalId":447639,"journal":{"name":"Herald of the Kazakh-British technical university","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123210135","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}

{"title":"Technical and chemistry properties of white portland cement","authors":"D. S. Odintsov, A. Suvorov, Z. Yestemesov, A. V. Barvinov","doi":"10.55452/1998-6688-2022-19-3-33-44","DOIUrl":"https://doi.org/10.55452/1998-6688-2022-19-3-33-44","url":null,"abstract":"The white Portland cement WPC-1-500-D0 has been studied by us and consists of the following minerals, wt%: alite – 50.4; belite – 20.0; celite – 0.9; felite – 16.7; gypsum – 7.0. The four of one minerals are clinker, and the last is involved into the cement during its grinding.Using X-ray phase analysis (XRP), it has been found that alite and belite have a crystalline structure, and felite has a glassy structure. Amorphism of felite is the result of high-temperature clinker has been cooled rapidly with water. The composition of clinker contains impurity of individual ions in form (Fe3+, Na+, K+, Mg2+, Ti4+, Mn2+, Cu2+), which are involved in the structure of clinker minerals; they do not create independent connections and do not remain in a free state. Moreover, Na+, K+, Mg2+, and possibly Ti4+, Mn2+ ions are mainly concentrated in the structure of silicate minerals, while Fe3+ and other chromophores in the consistance of calcium alumino-ferrites. Because of this, the values of interplanar distances (d) are shifted towards smaller and larger numbers than the reference ones. According by this situation, clinker minerals are their solid solutions. The physical and mechanical properties of white Portland cement WPC-1-500-D0 meet the technical requirements in accordance with GOST 965-89. “White Portland cement. Technical Specifications\". However, due to the high content of felite (3CaO·Al2O3) – 16.7%, independent compounds of the 3CaO·Al2O3·6H2O type can be created, which will significantly reduce the durability of materials and products made on the basis of this white Portland cement. Therefore, it is strongly recommended to check all white Portland cements entering the Republic of Kazakhstan for changes in strength, frost-resistance and corrosion resistance.","PeriodicalId":447639,"journal":{"name":"Herald of the Kazakh-British technical university","volume":"732 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116072011","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}

{"title":"UWAVE-2000 as an effective equipment for the microwave аssistant synthesis of N, N-diethyl-2-(mesitylamino)-N-benzyl-oxoethanamonium chloride – a compound with plant growth regulating activity","authors":"S. Tursynbek, K. Rafikova, A. O. Akimbek, Ye. Kamshyger, G. Jamalova, M. N. Naukanova","doi":"10.55452/1998-6688-2022-19-3-45-53","DOIUrl":"https://doi.org/10.55452/1998-6688-2022-19-3-45-53","url":null,"abstract":"The synthesis of N,N-Diethyl-2-(mesitiylamino)-N-benzyl-oxoethanamonium chloride was carried out by N-alkylation with traditional method and using microwave and ultrasonic activation. The synthesized ionіс compound is characterized by IR, NMR 1H and 13C methods, and its growth-stimulating activity has been tested on Zea Mays L. maize seeds. The synthesis of N,N-Diethyl-2-(mesitilamino)-N-benzyl-oxoethanamonium chloride using unconventional methods such as microwave and ultrasonic activation resulted in higher yields in a shorter period of time than traditional method. The highest yield (98%) was achieved by microwave activation of UWAVE-2000 in a very short time, while in the classical caseit was lower and the reaction time was twenty-four times longer. The synthesized ionic compound positively influenced the germination and growth energy of maize seeds. In samples treated with solution N,N-Diethyl-2-(mesitylamino)-N-benzyl-oxoethanaminium chloride of mould lesions was not so many, so, the treatment of maize seeds with trimecaine benzyl chloride not only stimulates the plant growth, but also prevent fungi mould formation.","PeriodicalId":447639,"journal":{"name":"Herald of the Kazakh-British technical university","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131884759","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}

{"title":"Influence of non-stationary electric current on dissolution оf metals in aqueous solutions of alkali","authors":"M. А. Eldes, U. А. Balgimbaeva, N. El-Sayed, E. Suleimenov, R. Sharipov","doi":"10.55452/1998-6688-2022-19-3-6-14","DOIUrl":"https://doi.org/10.55452/1998-6688-2022-19-3-6-14","url":null,"abstract":"Non-stationary effects can be widely used as an intensifying factor in technological processes and as a tool for studying chemical systems. Studies of energy effects on structural transformations in liquid systems can make it possible to significantly intensify many chemical and metallurgical processes. We have studied the solubility of aluminum, iron and molybdenum in alkaline solutions under the influence of alternating electric current. A two-electrode cell was used. The electrodes were made from dissolved metal. The frequency of the electric current varied from 20 to 200,000 Hz. In the process of dissolving aluminum in an alkaline solution at the same current frequency and alkali concentration, the mass loss of the aluminum sample increases with increasing current strength up to 0.042-0.044 g. A further increase of current practically blocks the dissolution of aluminum - the change in mass was 0.005-0.007 g of Al. Increasing the alkali concentration to 5.7% KOH significantly reduces the dissolution of aluminum, the weight loss is 0.009 g. The entire surface of the electrodes is covered with a film after 6 hours of dissolution. An analysis of the phases on the aluminum surface showed that the film is a phase based on potassium. The thickness of the potassium film varies depending on the depth of immersion of the electrodes in the solution and on the time of the experiment. The structure and composition of potassium and aluminum compounds could not be established.","PeriodicalId":447639,"journal":{"name":"Herald of the Kazakh-British technical university","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128799662","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}