База данных: Статьи
Страница 11, Результатов: 175
Отмеченные записи: 0
101.
Подробнее
28
V11
Vafin, R. R.
Real-Time pcr technology for cattle genotyping by A and B Kappa -Casein gene alleles. [Текст] / R. R. Vafin // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №1. - P. 126-132
ББК 28
Рубрики: Biology
Кл.слова (ненормированные):
Bos taurus -- PCR -- RFLP -- genotyping -- allele -- genotype -- CSN3
Аннотация: The main goal of the study was to develop and test an effective technology for cattle genotyping by the CSN3 gene based on real-time PCR with hybridization-fluorescence detection. There was developed a method for real-time PCR for cattle genotyping by A and B alleles of the CSN3 gene in the format of hybridization-fluorescence detection, involving the use of two 5/-fluorescence-labeled forward allele-specific primers, one reverse common primer, and one anti-primer labeled with a fluorescence quencher at the 3/-end of the oligonucleotide. As a result of practical studies aimed at testing the developed method, we obtained the technical result provided by the proposed technology, expressed in the effective identification of the desired genotypes due to correct interpretation of these curves of increasing fluorescence intensity, the results reliability of which was also confirmed by the well-known PCR-RFLP analysis technique for Bos taurus genotyping for similar allelic variants of the kappa-casein gene.
Держатели документа:
WKU
Доп.точки доступа:
Gilmanov, Kh. Kh.
V11
Vafin, R. R.
Real-Time pcr technology for cattle genotyping by A and B Kappa -Casein gene alleles. [Текст] / R. R. Vafin // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №1. - P. 126-132
Рубрики: Biology
Кл.слова (ненормированные):
Bos taurus -- PCR -- RFLP -- genotyping -- allele -- genotype -- CSN3
Аннотация: The main goal of the study was to develop and test an effective technology for cattle genotyping by the CSN3 gene based on real-time PCR with hybridization-fluorescence detection. There was developed a method for real-time PCR for cattle genotyping by A and B alleles of the CSN3 gene in the format of hybridization-fluorescence detection, involving the use of two 5/-fluorescence-labeled forward allele-specific primers, one reverse common primer, and one anti-primer labeled with a fluorescence quencher at the 3/-end of the oligonucleotide. As a result of practical studies aimed at testing the developed method, we obtained the technical result provided by the proposed technology, expressed in the effective identification of the desired genotypes due to correct interpretation of these curves of increasing fluorescence intensity, the results reliability of which was also confirmed by the well-known PCR-RFLP analysis technique for Bos taurus genotyping for similar allelic variants of the kappa-casein gene.
Держатели документа:
WKU
Доп.точки доступа:
Gilmanov, Kh. Kh.
102.
Подробнее
35
Y45
Yermagambet, B. T.
Production of carbon nanofibers based on coal tar and polyacryonitrile by electrospinning method. [Текст] / B. T. Yermagambet, M. K. Kazankapova, A. T. Nauryzbayeva, Zh. M. Kassenova // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №2. - P. 72-80
ББК 35
Рубрики: chemical Technology
Кл.слова (ненормированные):
carbon nanofiber -- coal tar -- polyacrylonitrile -- electrospinning -- oxidation -- carbonization
Аннотация: The article presents experiments on obtaining composite fibers based on Shubarkol coal tar (CT) and polycarlonitrile (PAN) by electrospinning in a laboratory setup. As a result of energy dispersive X-ray spectroscopy and SEM microscopy, the elemental composition (C-85.83%) and the diameter of the carbon fiber were determined, which ranged from 89.0 nm to 449.8 nm. The resulting CNF was subjected to oxidation in air at 300 °C, the holding time was 1 hour, after which the carbonization process was carried out at 800 °C, followed by cooling to room temperature.
Держатели документа:
WKU
Доп.точки доступа:
Kazankapova, M.K.
Nauryzbayeva, A.T.
Kassenova, Zh.M.
Y45
Yermagambet, B. T.
Production of carbon nanofibers based on coal tar and polyacryonitrile by electrospinning method. [Текст] / B. T. Yermagambet, M. K. Kazankapova, A. T. Nauryzbayeva, Zh. M. Kassenova // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №2. - P. 72-80
Рубрики: chemical Technology
Кл.слова (ненормированные):
carbon nanofiber -- coal tar -- polyacrylonitrile -- electrospinning -- oxidation -- carbonization
Аннотация: The article presents experiments on obtaining composite fibers based on Shubarkol coal tar (CT) and polycarlonitrile (PAN) by electrospinning in a laboratory setup. As a result of energy dispersive X-ray spectroscopy and SEM microscopy, the elemental composition (C-85.83%) and the diameter of the carbon fiber were determined, which ranged from 89.0 nm to 449.8 nm. The resulting CNF was subjected to oxidation in air at 300 °C, the holding time was 1 hour, after which the carbonization process was carried out at 800 °C, followed by cooling to room temperature.
Держатели документа:
WKU
Доп.точки доступа:
Kazankapova, M.K.
Nauryzbayeva, A.T.
Kassenova, Zh.M.
103.
Подробнее
35
Z63
Zhantassov, K.
Development of technology for extraction of lead and zinc oxides from dust and slags during the utilization of lead plant waste. [Текст] / K. Zhantassov // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №2. - P. 81-85
ББК 35
Рубрики: chemical Technology
Кл.слова (ненормированные):
waste -- lead waste -- oxic compounds -- lead and zinc compounds -- environmental pollution -- toxic waste processing -- waste disposal
Аннотация: The article proposes methods for the extraction of lead and zinc from slag waste and selects the optimal method for the selective extraction of zinc and lead oxides from dust and slags of lead production. The proposed technology of continuous carbon-free selective extraction of zinc and lead from the dust of electric steelmaking production allows the use of lead production slag, which is fed into a rotating drum furnace in two oppositely directed streams. During the movement of lead slag in the furnace drum and the burning of the torch, lead and zinc are more completely extracted from the dust-like material, where the transporting object is compressed air, and the purified flue gas after the gas is further purified by means of a smoke pump is released into the atmosphere.
Держатели документа:
WKU
Доп.точки доступа:
Bagova, Z.
Turebekova, G.
Sapargaliyeva, B.
Pusurmanova, G.
Z63
Zhantassov, K.
Development of technology for extraction of lead and zinc oxides from dust and slags during the utilization of lead plant waste. [Текст] / K. Zhantassov // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №2. - P. 81-85
Рубрики: chemical Technology
Кл.слова (ненормированные):
waste -- lead waste -- oxic compounds -- lead and zinc compounds -- environmental pollution -- toxic waste processing -- waste disposal
Аннотация: The article proposes methods for the extraction of lead and zinc from slag waste and selects the optimal method for the selective extraction of zinc and lead oxides from dust and slags of lead production. The proposed technology of continuous carbon-free selective extraction of zinc and lead from the dust of electric steelmaking production allows the use of lead production slag, which is fed into a rotating drum furnace in two oppositely directed streams. During the movement of lead slag in the furnace drum and the burning of the torch, lead and zinc are more completely extracted from the dust-like material, where the transporting object is compressed air, and the purified flue gas after the gas is further purified by means of a smoke pump is released into the atmosphere.
Держатели документа:
WKU
Доп.точки доступа:
Bagova, Z.
Turebekova, G.
Sapargaliyeva, B.
Pusurmanova, G.
104.
Подробнее
26.31
A28
Aimbetova, I.O.
Mineral and petrographic analysis of clay raw materials of the turkestan region used as additives to thermal insulation materials. [Текст] / I.O. Aimbetova // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №2. - P. 110-119
ББК 26.31
Рубрики: Минералогия
Кл.слова (ненормированные):
industrial production -- natural raw materials -- recycling industrial waste -- analysis -- thermal insulation materials
Аннотация: The article discusses the contributes to the development of a new focus on the use of various mixtures of natural raw materials and waste in the construction materials industry as a strategically important direction for solving the environmental burden and recycling industrial waste with a feasibility study that improves the state of the environment.
Держатели документа:
WKU
Доп.точки доступа:
Kurbaniyazov, S.
A28
Aimbetova, I.O.
Mineral and petrographic analysis of clay raw materials of the turkestan region used as additives to thermal insulation materials. [Текст] / I.O. Aimbetova // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №2. - P. 110-119
Рубрики: Минералогия
Кл.слова (ненормированные):
industrial production -- natural raw materials -- recycling industrial waste -- analysis -- thermal insulation materials
Аннотация: The article discusses the contributes to the development of a new focus on the use of various mixtures of natural raw materials and waste in the construction materials industry as a strategically important direction for solving the environmental burden and recycling industrial waste with a feasibility study that improves the state of the environment.
Держатели документа:
WKU
Доп.точки доступа:
Kurbaniyazov, S.
105.
Подробнее
35
A92
Augaliev, D. B.
Oxidative dimerization of methane to C2 hydrocarbons. [Текст] / D. B. Augaliev, M. K. Erkibaeva, A. O. Aidarova // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №3. - P. 18-24
ББК 35
Рубрики: chemical Technology
Кл.слова (ненормированные):
ODM reaction -- C2 hydrocarbons -- SHS method -- temperature of reaction
Аннотация: The purpose of this work is to study the reaction of methane dehydrogenation on new 20%La-10%Ce-20%Mg-50% glycine catalysts prepared by the SHS method to identify the optimal conditions for their preparation, concentration and ratio of metals, the influence of contact time and process temperature on the direction and mechanism of the reaction.
Держатели документа:
WKU
Доп.точки доступа:
Erkibaeva, M.K.
Aidarova, A.O.
Tungatarova, S.А.
Baizhumanova, T.S.
A92
Augaliev, D. B.
Oxidative dimerization of methane to C2 hydrocarbons. [Текст] / D. B. Augaliev, M. K. Erkibaeva, A. O. Aidarova // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №3. - P. 18-24
Рубрики: chemical Technology
Кл.слова (ненормированные):
ODM reaction -- C2 hydrocarbons -- SHS method -- temperature of reaction
Аннотация: The purpose of this work is to study the reaction of methane dehydrogenation on new 20%La-10%Ce-20%Mg-50% glycine catalysts prepared by the SHS method to identify the optimal conditions for their preparation, concentration and ratio of metals, the influence of contact time and process temperature on the direction and mechanism of the reaction.
Держатели документа:
WKU
Доп.точки доступа:
Erkibaeva, M.K.
Aidarova, A.O.
Tungatarova, S.А.
Baizhumanova, T.S.
106.
Подробнее
24
M23
Mamyrbekova, А.
Study of kinetics of copper oxidation by electrolysis under non-stationary conditions. [Текст] / А. Mamyrbekova, А. Mamyrbekova, M. К. Kassymova, A. Zh. Aitbayeva, O. N. Chechina // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №3. - P. 54-59
ББК 24
Рубрики: chemistry
Кл.слова (ненормированные):
copper electro-oxidation -- copper (I) oxide -- copper (II) oxide -- unsteady electrolysis -- electrolyte -- polarisation curves
Аннотация: The nature of the anion electrolyte affects the rate of copper anodic oxidation, while the process occurs more efficiently in solutions of sulfate and sodium chloride and is accompanied by significant polarisation. Based on the study of kinetics the possibility of obtaining powders of metal oxide was shown, which further allowed to determine the parameters of the electrolysis process in non-stationary conditions in order to obtain highly dispersed materials based on copper oxides with specific physico-chemical properties.
Держатели документа:
WKU
Доп.точки доступа:
Mamyrbekova, А.
Kassymova, M.К.
Aitbayeva, A.Zh.
Chechina, O.N.
M23
Mamyrbekova, А.
Study of kinetics of copper oxidation by electrolysis under non-stationary conditions. [Текст] / А. Mamyrbekova, А. Mamyrbekova, M. К. Kassymova, A. Zh. Aitbayeva, O. N. Chechina // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №3. - P. 54-59
Рубрики: chemistry
Кл.слова (ненормированные):
copper electro-oxidation -- copper (I) oxide -- copper (II) oxide -- unsteady electrolysis -- electrolyte -- polarisation curves
Аннотация: The nature of the anion electrolyte affects the rate of copper anodic oxidation, while the process occurs more efficiently in solutions of sulfate and sodium chloride and is accompanied by significant polarisation. Based on the study of kinetics the possibility of obtaining powders of metal oxide was shown, which further allowed to determine the parameters of the electrolysis process in non-stationary conditions in order to obtain highly dispersed materials based on copper oxides with specific physico-chemical properties.
Держатели документа:
WKU
Доп.точки доступа:
Mamyrbekova, А.
Kassymova, M.К.
Aitbayeva, A.Zh.
Chechina, O.N.
107.
Подробнее
36
M15
Madet, G.
Research of malting properties of Kasakhstan tritikale grain varieties for use in the beverage industry. [Текст] / G. Madet // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №3. - P. 59-65
ББК 36
Рубрики: Пищевые производства
Кл.слова (ненормированные):
Malt -- barley -- triticale -- fermentation industry -- kvass -- kvass wort concentrate -- ethyl alcohol -- extract -- variety -- germination ability
Аннотация: In this regard, it is obvious that the performance of work related to theoretical and experimental research aimed at the development of new technological modes of preparation of malt from triticale is one of the urgent tasks, the decision of which, to create an assortment of drinks. The purpose of the research work is to study the malting properties of Kazakhstani varieties of triticale grain.
Держатели документа:
WKU
Доп.точки доступа:
Bayazitova, M.M.
M15
Madet, G.
Research of malting properties of Kasakhstan tritikale grain varieties for use in the beverage industry. [Текст] / G. Madet // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №3. - P. 59-65
Рубрики: Пищевые производства
Кл.слова (ненормированные):
Malt -- barley -- triticale -- fermentation industry -- kvass -- kvass wort concentrate -- ethyl alcohol -- extract -- variety -- germination ability
Аннотация: In this regard, it is obvious that the performance of work related to theoretical and experimental research aimed at the development of new technological modes of preparation of malt from triticale is one of the urgent tasks, the decision of which, to create an assortment of drinks. The purpose of the research work is to study the malting properties of Kazakhstani varieties of triticale grain.
Держатели документа:
WKU
Доп.точки доступа:
Bayazitova, M.M.
108.
Подробнее
35
R24
Rasulov, S. R.
Development of effective catalysts for processing C3-C4 Hydrocarbons. [Текст] / S. R. Rasulov, G. R. Mustafayeva // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №3. - P. 87-93
ББК 35
Рубрики: chemical Technology
Кл.слова (ненормированные):
refinery gases -- 3-C4 hydrocarbons -- zeolite-containing catalyst -- modifiers -- reaction-regeneration cycles.
Аннотация: The aim of the article is to study the effect of preparation and activation methods of a modified zeolite-containing catalyst on the activity and stability of catalytic properties displayed by it during the conversion of C3-C4 hydrocarbons. During the experiment, the industrial cracking catalyst OMNIKAT, which is a zeolite in the sodium form, was used as the initial one. Zinc, gallium, and REE (rare earth elements) were sequentially applied to decationized samples of this catalyst by ion exchange, impregnation, and dry mechanical mixing, and the effect of these methods on the catalytic properties of the zeolite-containing catalyst was observed. As a result of a comparative analysis of the regularities of aromatization of C3-C4hydrocarbons, it was found that the mechanical mixing method is the most preferable, since it provides the best process performance.
Держатели документа:
WKU
Доп.точки доступа:
Mustafayeva, G.R.
R24
Rasulov, S. R.
Development of effective catalysts for processing C3-C4 Hydrocarbons. [Текст] / S. R. Rasulov, G. R. Mustafayeva // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №3. - P. 87-93
Рубрики: chemical Technology
Кл.слова (ненормированные):
refinery gases -- 3-C4 hydrocarbons -- zeolite-containing catalyst -- modifiers -- reaction-regeneration cycles.
Аннотация: The aim of the article is to study the effect of preparation and activation methods of a modified zeolite-containing catalyst on the activity and stability of catalytic properties displayed by it during the conversion of C3-C4 hydrocarbons. During the experiment, the industrial cracking catalyst OMNIKAT, which is a zeolite in the sodium form, was used as the initial one. Zinc, gallium, and REE (rare earth elements) were sequentially applied to decationized samples of this catalyst by ion exchange, impregnation, and dry mechanical mixing, and the effect of these methods on the catalytic properties of the zeolite-containing catalyst was observed. As a result of a comparative analysis of the regularities of aromatization of C3-C4hydrocarbons, it was found that the mechanical mixing method is the most preferable, since it provides the best process performance.
Держатели документа:
WKU
Доп.точки доступа:
Mustafayeva, G.R.
109.
Подробнее
26.3
A36
Alipova, B.
Creation of mathematical and computer models of the dynamics of flame propagation of air-suspended solids in various rocks using Matlab environment [Текст] / B. Alipova, B. Sapargaliyeva // Известия Национальной Академии наук Республики Казахстан. - 2021. - №1. - Р. 29-34
ББК 26.3
Рубрики: Геология
Кл.слова (ненормированные):
MATLAB -- графический интерфейс -- распространение пламени -- динамический CLFP -- воздух-взвешенные вещества -- уравнение Антуана -- скалы
Аннотация: Распространение переходных, взвешенных в воздухе твердых веществ в вентилируемой взрывной камере численно исследуется с помощью динамической формулировки для концентрационного предела распространения пламени (CLFP) в среде GUI MATLAB. Геомеханика моделируется одностадийной общей реакцией, которая имитирует реакцию стехиометрического пропан – воздух– взвешенные твердые вещества. Моделирование CLFP в модели скорости реакции численно используется с математическими моделями на основе уравнения Антуана. Это основано на эмпирической корреляции флуктуаций скорости и реализовано в виде интерфейса с данными ввода-вывода с графической реализацией. Компьютерное моделирование показало, что динамические модели CLFP дают превосходные результаты в качестве общей реализации физического процесса распространения пламени и могут быть использованы для различных горных пород (например, гранита, известняка, песчаника и др.).
Держатели документа:
ЗКУ
Доп.точки доступа:
Sapargaliyeva, B.
A36
Alipova, B.
Creation of mathematical and computer models of the dynamics of flame propagation of air-suspended solids in various rocks using Matlab environment [Текст] / B. Alipova, B. Sapargaliyeva // Известия Национальной Академии наук Республики Казахстан. - 2021. - №1. - Р. 29-34
Рубрики: Геология
Кл.слова (ненормированные):
MATLAB -- графический интерфейс -- распространение пламени -- динамический CLFP -- воздух-взвешенные вещества -- уравнение Антуана -- скалы
Аннотация: Распространение переходных, взвешенных в воздухе твердых веществ в вентилируемой взрывной камере численно исследуется с помощью динамической формулировки для концентрационного предела распространения пламени (CLFP) в среде GUI MATLAB. Геомеханика моделируется одностадийной общей реакцией, которая имитирует реакцию стехиометрического пропан – воздух– взвешенные твердые вещества. Моделирование CLFP в модели скорости реакции численно используется с математическими моделями на основе уравнения Антуана. Это основано на эмпирической корреляции флуктуаций скорости и реализовано в виде интерфейса с данными ввода-вывода с графической реализацией. Компьютерное моделирование показало, что динамические модели CLFP дают превосходные результаты в качестве общей реализации физического процесса распространения пламени и могут быть использованы для различных горных пород (например, гранита, известняка, песчаника и др.).
Держатели документа:
ЗКУ
Доп.точки доступа:
Sapargaliyeva, B.
110.
Подробнее
24
Z63
Zhumabek, M.
Ni-Al-Mg-Mn composite catalysts for partial oxidation of natural gas. [Текст] / M. Zhumabek, G. N. Kaumenova, A. Manabayeva, R. O. Sarsenova, S. O. Kotov // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №4. - P. 19-26
ББК 24
Рубрики: chemistry
Кл.слова (ненормированные):
catalytic oxidation -- methane -- synthesis-gas -- nickel -- magnesium
Аннотация: the problem of rational utilization of natural and associated petroleum gases and the cessation of their flaring is one of the acute and unresolved environmental problems. The aim of this work is to develop effective thermally stable catalysts ofa new generation for the processes of oxidative conversion of light alkanes of natural and associated gas into synthesis gas. The results of partial oxidation of the methane of natural gas on the catalysts prepared by solution combustion synthesis are presented. Investigation of the activity of catalysts produced from initial mixture of Ni(NO3)2-Al(NO3)3-Mg(NO3)2-Mn(NO3)2+ urea of different composition was carried out for the production of synthesis-gas. It was found that the optimal conditions for producing of synthesis-gas are: CH4conversion higher than 95%, yield of target products: Н2-97 -99% and СО -40 -43%, Т = 900оС, space velocity –2500 and 6500 h-1. The catalysts were studied by X-ray diffraction, transmission electron microscopy, specific surface area, pore volume and average pore diameter. The presence in the catalysts of simple and mixed oxides, metal aluminates and spinel-type structures, the presence of which contributes to the active work of catalysts for oxidativeconversion of CH4, has been established.
Держатели документа:
WKU
Доп.точки доступа:
Kaumenova, G.N.
Manabayeva, A.
Sarsenova, R.O.
Kotov, S.O.
Z63
Zhumabek, M.
Ni-Al-Mg-Mn composite catalysts for partial oxidation of natural gas. [Текст] / M. Zhumabek, G. N. Kaumenova, A. Manabayeva, R. O. Sarsenova, S. O. Kotov // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №4. - P. 19-26
Рубрики: chemistry
Кл.слова (ненормированные):
catalytic oxidation -- methane -- synthesis-gas -- nickel -- magnesium
Аннотация: the problem of rational utilization of natural and associated petroleum gases and the cessation of their flaring is one of the acute and unresolved environmental problems. The aim of this work is to develop effective thermally stable catalysts ofa new generation for the processes of oxidative conversion of light alkanes of natural and associated gas into synthesis gas. The results of partial oxidation of the methane of natural gas on the catalysts prepared by solution combustion synthesis are presented. Investigation of the activity of catalysts produced from initial mixture of Ni(NO3)2-Al(NO3)3-Mg(NO3)2-Mn(NO3)2+ urea of different composition was carried out for the production of synthesis-gas. It was found that the optimal conditions for producing of synthesis-gas are: CH4conversion higher than 95%, yield of target products: Н2-97 -99% and СО -40 -43%, Т = 900оС, space velocity –2500 and 6500 h-1. The catalysts were studied by X-ray diffraction, transmission electron microscopy, specific surface area, pore volume and average pore diameter. The presence in the catalysts of simple and mixed oxides, metal aluminates and spinel-type structures, the presence of which contributes to the active work of catalysts for oxidativeconversion of CH4, has been established.
Держатели документа:
WKU
Доп.точки доступа:
Kaumenova, G.N.
Manabayeva, A.
Sarsenova, R.O.
Kotov, S.O.
Страница 11, Результатов: 175