База данных: Статьи
Страница 5, Результатов: 71
Отмеченные записи: 0
41.
Подробнее
22.1
Y39
A., Yegenova
Some problems in describing various physical processes with similar nonlinear wave propagation models. [Текст] / Yegenova A., S. Kurakbayeva, A. Kalbayeva , Zh. Iztaev // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №6. - P. 103-113
ББК 22.1
Рубрики: Mathematica
Кл.слова (ненормированные):
Physical and chemical processes -- dissipative fluxes -- transport equations -- viscous liquids
Аннотация: The article provides a generalized presentation of the results of the authors’ research to identify typical situations in the construction of mathematical models of various physical processes that can lead to equations with solutions in the form of moving nonlinear waves.
Держатели документа:
WKU
Доп.точки доступа:
Kurakbayeva, S.
Kalbayeva , A.
Iztaev , Zh.
Y39
A., Yegenova
Some problems in describing various physical processes with similar nonlinear wave propagation models. [Текст] / Yegenova A., S. Kurakbayeva, A. Kalbayeva , Zh. Iztaev // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №6. - P. 103-113
Рубрики: Mathematica
Кл.слова (ненормированные):
Physical and chemical processes -- dissipative fluxes -- transport equations -- viscous liquids
Аннотация: The article provides a generalized presentation of the results of the authors’ research to identify typical situations in the construction of mathematical models of various physical processes that can lead to equations with solutions in the form of moving nonlinear waves.
Держатели документа:
WKU
Доп.точки доступа:
Kurakbayeva, S.
Kalbayeva , A.
Iztaev , Zh.
42.
Подробнее
22.1
S22
Sartabanov, Zh. A.
Mutual reduction of linear multiperiodic systems of equations with differentiation operators. [Текст] / Zh. A. Sartabanov, G. M. Aitenova , G. S. Toremuratova // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №6. - P. 128-135
ББК 22.1
Рубрики: Mathematica
Кл.слова (ненормированные):
reducibility -- mutual reducibility -- systems -- operator of differentiation -- differentiation along the diagonal -- multiperiodicity -- monodromy
Аннотация: This article is devoted to the study of the problem of mutual reducibility of linear homogeneous systems with multiperiodic coefficients, where a system with a differentiation operator along the direction of the main diagonal is first considered, and then the results of this particular case are generalized to the general case.
Держатели документа:
WKU
Доп.точки доступа:
Aitenova , G.M.
Toremuratova, G.S.
S22
Sartabanov, Zh. A.
Mutual reduction of linear multiperiodic systems of equations with differentiation operators. [Текст] / Zh. A. Sartabanov, G. M. Aitenova , G. S. Toremuratova // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №6. - P. 128-135
Рубрики: Mathematica
Кл.слова (ненормированные):
reducibility -- mutual reducibility -- systems -- operator of differentiation -- differentiation along the diagonal -- multiperiodicity -- monodromy
Аннотация: This article is devoted to the study of the problem of mutual reducibility of linear homogeneous systems with multiperiodic coefficients, where a system with a differentiation operator along the direction of the main diagonal is first considered, and then the results of this particular case are generalized to the general case.
Держатели документа:
WKU
Доп.точки доступа:
Aitenova , G.M.
Toremuratova, G.S.
43.
Подробнее
35
Y46
Yessenamanova, M. S.
The content and distribution of the trace elements in soils during the development of oil fields in the republic of Kalmykia. [Текст] / M. S. Yessenamanova, Ts. D. Davaeva, L. Kh. Sangadzhieva, B. V. Tsombueva [et al.] // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №1. - P. 14-21
ББК 35
Рубрики: chemical Technology
Кл.слова (ненормированные):
oil-contaminated soils -- heavy metals -- trace elements -- oil products -- drilling sites
Аннотация: The article presents the results of chemical analysis soils of drilling sites of the Sostinsky and Mezhozerny oil fields of the Republic of Kalmykia. The content of sodium ions is more than 2 times higher in both deposits. At the same time, the content of chlorides in some areas of the Mezhozerny field reaches its maximum. As a result, the soils are highly saline in terms of the degree of salinity and are mainly chloride-sulfate-sodium in terms of the type of salinity.
Держатели документа:
WKU
Доп.точки доступа:
Davaeva, Ts.D.
Sangadzhieva, L.Kh.
Tsombueva, B.V.
Sangadzhieva, O.S.
Yessenamanova, Zh.S.
Tlepbergenova, A.E.
Y46
Yessenamanova, M. S.
The content and distribution of the trace elements in soils during the development of oil fields in the republic of Kalmykia. [Текст] / M. S. Yessenamanova, Ts. D. Davaeva, L. Kh. Sangadzhieva, B. V. Tsombueva [et al.] // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №1. - P. 14-21
Рубрики: chemical Technology
Кл.слова (ненормированные):
oil-contaminated soils -- heavy metals -- trace elements -- oil products -- drilling sites
Аннотация: The article presents the results of chemical analysis soils of drilling sites of the Sostinsky and Mezhozerny oil fields of the Republic of Kalmykia. The content of sodium ions is more than 2 times higher in both deposits. At the same time, the content of chlorides in some areas of the Mezhozerny field reaches its maximum. As a result, the soils are highly saline in terms of the degree of salinity and are mainly chloride-sulfate-sodium in terms of the type of salinity.
Держатели документа:
WKU
Доп.точки доступа:
Davaeva, Ts.D.
Sangadzhieva, L.Kh.
Tsombueva, B.V.
Sangadzhieva, O.S.
Yessenamanova, Zh.S.
Tlepbergenova, A.E.
44.
Подробнее
35
Y46
Yessenamanova, M. S.
Content of heavy metals in the sea water of the northern Caspian Sea. [Текст] / M. S. Yessenamanova // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №1. - P. 22-29
ББК 35
Рубрики: chemical Technology
Кл.слова (ненормированные):
seawater samples -- heavy metals -- North Caspian deposits -- maximum permissible concentration (MPC) -- water pollution monitoring
Аннотация: The article presents the results of chemical analysis for the content of heavy metals in the waters of the fields in the northern part of the Caspian Sea.
Держатели документа:
WKU
Доп.точки доступа:
Zhakyayeva, D.
Ryszhan, A.
Yessenamanova, Zh.S.
Tlepbergenova, A.E.
Pendashteh, A.
Y46
Yessenamanova, M. S.
Content of heavy metals in the sea water of the northern Caspian Sea. [Текст] / M. S. Yessenamanova // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №1. - P. 22-29
Рубрики: chemical Technology
Кл.слова (ненормированные):
seawater samples -- heavy metals -- North Caspian deposits -- maximum permissible concentration (MPC) -- water pollution monitoring
Аннотация: The article presents the results of chemical analysis for the content of heavy metals in the waters of the fields in the northern part of the Caspian Sea.
Держатели документа:
WKU
Доп.точки доступа:
Zhakyayeva, D.
Ryszhan, A.
Yessenamanova, Zh.S.
Tlepbergenova, A.E.
Pendashteh, A.
45.
Подробнее
4
A67
Appazov, N. O.
Obtaining biochar from rice husk and straw. [Текст] / N. O. Appazov // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №1. - P. 66-74
ББК 4
Рубрики: Сельское хозяйство
Кл.слова (ненормированные):
biochar -- rice husk -- rice straw -- thermolysis -- recycling -- fertilizer -- renewable fuel
Аннотация: This paper presents the results of research on obtaining biochar from agricultural plant waste such as rice husk and straw. The selection of the optimal conditions for thermolysis, such as the duration and temperature of the process, has been conducted.
Держатели документа:
WKU
Доп.точки доступа:
Bazarbayev, B. M.
Assylbekkyzy, T.
Diyarova, B. M.
Kanzhar, S. A.
Magauiya, S.
Zhapparbergenov, R. U.
Akylbekov, N. I.
Duisembekov, B. A.
A67
Appazov, N. O.
Obtaining biochar from rice husk and straw. [Текст] / N. O. Appazov // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №1. - P. 66-74
Рубрики: Сельское хозяйство
Кл.слова (ненормированные):
biochar -- rice husk -- rice straw -- thermolysis -- recycling -- fertilizer -- renewable fuel
Аннотация: This paper presents the results of research on obtaining biochar from agricultural plant waste such as rice husk and straw. The selection of the optimal conditions for thermolysis, such as the duration and temperature of the process, has been conducted.
Держатели документа:
WKU
Доп.точки доступа:
Bazarbayev, B. M.
Assylbekkyzy, T.
Diyarova, B. M.
Kanzhar, S. A.
Magauiya, S.
Zhapparbergenov, R. U.
Akylbekov, N. I.
Duisembekov, B. A.
46.
Подробнее
35
A44
Altayeva, A.
Study of gold extraction from stale tailings by agitation leaching. [Текст] / A. Altayeva, B. N. Surimbayev, L. S. Bolotova, Zh. Т. Bagasharova, Sh. K. Akilbekova // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №1. - P. 89-94
ББК 35
Рубрики: chemical Technology
Кл.слова (ненормированные):
stale tailings -- stale tailings of the processing plant -- leaching -- technogenic mineral formations -- gold
Аннотация: The object of research is technogenic mineral formations-tailings of the Bestube processing plant located within the Bestube gold field. Analytical and technological studies of stale tailings have been carried out. According to the results of analytical studies, the material composition of stale tails was established. The average gold content in stale tailings according to assay analyses is 0.565 g/t, silver 1.56 g/t. The tailings belong to the category of poor sulfide, oxidized raw materials. The main industrially valuable component in the tailings is gold, silver has a subordinate value, and other metals are not of industrial value. Mineralogical analysis established that stale tails are represented by quartz, muscovite, clinochlore, albite, dolomite. Studies were conducted on agitation leaching of stale tailings of the initial size (64.08% of the class –0.074 mm) and after additional grinding to the size of 90% of the class –0.074 mm. Reducing the size contributes to the dissolution of gold from the tailings: at the initial size, 66.28% of gold is dissolved, after regrinding the degree of dissolution of gold from the tailings increases to 87.23%. The results of research on agitation leaching of gold have shown a high efficiency of hydrometallurgical technology for processing stale tailings of a processing plant.
Держатели документа:
WKU
Доп.точки доступа:
Surimbayev, B. N.
Bolotova, L. S.
Bagasharova, Zh. Т.
Akilbekova, Sh. K.
A44
Altayeva, A.
Study of gold extraction from stale tailings by agitation leaching. [Текст] / A. Altayeva, B. N. Surimbayev, L. S. Bolotova, Zh. Т. Bagasharova, Sh. K. Akilbekova // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №1. - P. 89-94
Рубрики: chemical Technology
Кл.слова (ненормированные):
stale tailings -- stale tailings of the processing plant -- leaching -- technogenic mineral formations -- gold
Аннотация: The object of research is technogenic mineral formations-tailings of the Bestube processing plant located within the Bestube gold field. Analytical and technological studies of stale tailings have been carried out. According to the results of analytical studies, the material composition of stale tails was established. The average gold content in stale tailings according to assay analyses is 0.565 g/t, silver 1.56 g/t. The tailings belong to the category of poor sulfide, oxidized raw materials. The main industrially valuable component in the tailings is gold, silver has a subordinate value, and other metals are not of industrial value. Mineralogical analysis established that stale tails are represented by quartz, muscovite, clinochlore, albite, dolomite. Studies were conducted on agitation leaching of stale tailings of the initial size (64.08% of the class –0.074 mm) and after additional grinding to the size of 90% of the class –0.074 mm. Reducing the size contributes to the dissolution of gold from the tailings: at the initial size, 66.28% of gold is dissolved, after regrinding the degree of dissolution of gold from the tailings increases to 87.23%. The results of research on agitation leaching of gold have shown a high efficiency of hydrometallurgical technology for processing stale tailings of a processing plant.
Держатели документа:
WKU
Доп.точки доступа:
Surimbayev, B. N.
Bolotova, L. S.
Bagasharova, Zh. Т.
Akilbekova, Sh. K.
47.
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.
48.
Подробнее
36
S53
Shunekeyeva, А. А.
Fruit-berry fillers in the production of kazakh national fermented milk drinks. [Текст] / А. А. Shunekeyeva, M. K. Alimardanova, A. A. Majorov // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №1. - P. 139-146
ББК 36
Рубрики: Пищевые производства
Кл.слова (ненормированные):
ayran -- ermented milk drink -- fruit and berry filler -- goat's milk -- mathematical model -- ozonisation
Аннотация: This paper offers investigation of fruit and berry fillers on the rheological properties of fermented milk drinks. The research was conducted as part of a scientific research effort. Local wild plants were used as fillers. This type of research allowed expanding the range of products at the enterprise and improving the organoleptic and nutritional properties of products. The purpose of this article is to find additional local vegetable raw materials as filler for fermented milk products. The importance of the results is that the data obtained can be used by specialists of dairy farms. During the period of coronavirus infection, when there were interruptions in the supply of raw materials, such directions it sets for future research as the development and improvement new food products by using local plant raw materials were revealed.
Держатели документа:
WKU
Доп.точки доступа:
Alimardanova, M. K.
Majorov, A. A.
S53
Shunekeyeva, А. А.
Fruit-berry fillers in the production of kazakh national fermented milk drinks. [Текст] / А. А. Shunekeyeva, M. K. Alimardanova, A. A. Majorov // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №1. - P. 139-146
Рубрики: Пищевые производства
Кл.слова (ненормированные):
ayran -- ermented milk drink -- fruit and berry filler -- goat's milk -- mathematical model -- ozonisation
Аннотация: This paper offers investigation of fruit and berry fillers on the rheological properties of fermented milk drinks. The research was conducted as part of a scientific research effort. Local wild plants were used as fillers. This type of research allowed expanding the range of products at the enterprise and improving the organoleptic and nutritional properties of products. The purpose of this article is to find additional local vegetable raw materials as filler for fermented milk products. The importance of the results is that the data obtained can be used by specialists of dairy farms. During the period of coronavirus infection, when there were interruptions in the supply of raw materials, such directions it sets for future research as the development and improvement new food products by using local plant raw materials were revealed.
Держатели документа:
WKU
Доп.точки доступа:
Alimardanova, M. K.
Majorov, A. A.
49.
Подробнее
24
A99
Azimbayeva, G. E.
Gas Chromatographic analysis of the chemical composition of ethyl alcohol obtained from plants of the genus asteraceae. [Текст] / G. E. Azimbayeva // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №2. - P. 6-13
ББК 24
Рубрики: chemistry
Кл.слова (ненормированные):
Ethyl alcohol -- plants of the genus Asteraceae -- gas chromatographic method -- chromatogram -- chemical composition
Аннотация: The article discusses the methods of obtaining and application of ethyl alcohol. The results of the analysis of the chemical composition of ethyl alcohol obtained from plants of the genus Asteraceae are presented. As a result of the study, alcohols were obtained in different concentrations. The chemical composition of ethyl alcohol was determined by gas chromatography. The impurity composition of ethyl alcohol obtained from various types of raw materials is also shown.
Держатели документа:
WKU
Доп.точки доступа:
Kamysbayeva, A.K.
Bakibaev, Abdigali
A99
Azimbayeva, G. E.
Gas Chromatographic analysis of the chemical composition of ethyl alcohol obtained from plants of the genus asteraceae. [Текст] / G. E. Azimbayeva // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №2. - P. 6-13
Рубрики: chemistry
Кл.слова (ненормированные):
Ethyl alcohol -- plants of the genus Asteraceae -- gas chromatographic method -- chromatogram -- chemical composition
Аннотация: The article discusses the methods of obtaining and application of ethyl alcohol. The results of the analysis of the chemical composition of ethyl alcohol obtained from plants of the genus Asteraceae are presented. As a result of the study, alcohols were obtained in different concentrations. The chemical composition of ethyl alcohol was determined by gas chromatography. The impurity composition of ethyl alcohol obtained from various types of raw materials is also shown.
Держатели документа:
WKU
Доп.точки доступа:
Kamysbayeva, A.K.
Bakibaev, Abdigali
50.
Подробнее
35
B15
Bagova, Z.
Analysis and prospective utilization of technogenic slag waste from a lead plant. [Текст] / Z. Bagova, K. Zhantasov, G. Turebekova, B. Sapargaliyeva, Javier Rodrigo-Iiarri // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №2. - P. 22-28
ББК 35
Рубрики: chemical Technology
Кл.слова (ненормированные):
waste -- lead-zinc waste -- secondary raw materials -- non-ferrous metals -- valuable components -- waste processing -- waste disposal -- low-waste and non-waste technologies
Аннотация: The article presents the analysis and results of the study of technogenic slag waste of lead-zinc production. Slags of lead-zinc production contain a large number of toxic compounds: lead, zinc, osmium, cadmium, which are dangerous sources of environmental pollution. Due to the open storage of slags, it was found that the maximum permissible concentrations of lead were exceeded. Utilization of man-made slag waste is of great importance for reducing the negative impact on the safety of life and improving the environmental situation in the region. At the same time, slags are valuable raw materials containing compounds of non-ferrous and rare-earth metals.
Держатели документа:
WKU
Доп.точки доступа:
Zhantasov, K.
Turebekova, G.
Sapargaliyeva, B.
Rodrigo-Iiarri, Javier
B15
Bagova, Z.
Analysis and prospective utilization of technogenic slag waste from a lead plant. [Текст] / Z. Bagova, K. Zhantasov, G. Turebekova, B. Sapargaliyeva, Javier Rodrigo-Iiarri // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №2. - P. 22-28
Рубрики: chemical Technology
Кл.слова (ненормированные):
waste -- lead-zinc waste -- secondary raw materials -- non-ferrous metals -- valuable components -- waste processing -- waste disposal -- low-waste and non-waste technologies
Аннотация: The article presents the analysis and results of the study of technogenic slag waste of lead-zinc production. Slags of lead-zinc production contain a large number of toxic compounds: lead, zinc, osmium, cadmium, which are dangerous sources of environmental pollution. Due to the open storage of slags, it was found that the maximum permissible concentrations of lead were exceeded. Utilization of man-made slag waste is of great importance for reducing the negative impact on the safety of life and improving the environmental situation in the region. At the same time, slags are valuable raw materials containing compounds of non-ferrous and rare-earth metals.
Держатели документа:
WKU
Доп.точки доступа:
Zhantasov, K.
Turebekova, G.
Sapargaliyeva, B.
Rodrigo-Iiarri, Javier
Страница 5, Результатов: 71