База данных: Статьи
Страница 7, Результатов: 89
Отмеченные записи: 0
61.
Подробнее
65
M99
Myrkanova, A. M.
Anisotropy of economic space of the republic of Kazakhstan. [Текст] / A. M. Myrkanova, K. M. Akanova, A. L. Lastovetsky // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №4. - P. 107-113
ББК 65
Рубрики: Economics
Кл.слова (ненормированные):
anisotropy -- classification of regions -- localization of production -- cluster -- dendrogram
Аннотация: This article is devoted to the study of the rational use of the resource potential of the territories of the Republic of Kazakhstan on the basis of the coefficient of concentration orlocalization of production. The developed mathematical model takes into account many factors affecting the anisotropy of the country's economic space development, and allows us to propose an optimal strategy for managing regions. In the work using a cluster model based on hierarchical algorithms, graphs-dendrograms are constructed and regions are classified according to their level of competitiveness.
Держатели документа:
WKU
Доп.точки доступа:
Akanova, K.M.
Lastovetsky, A.L.
M99
Myrkanova, A. M.
Anisotropy of economic space of the republic of Kazakhstan. [Текст] / A. M. Myrkanova, K. M. Akanova, A. L. Lastovetsky // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №4. - P. 107-113
Рубрики: Economics
Кл.слова (ненормированные):
anisotropy -- classification of regions -- localization of production -- cluster -- dendrogram
Аннотация: This article is devoted to the study of the rational use of the resource potential of the territories of the Republic of Kazakhstan on the basis of the coefficient of concentration orlocalization of production. The developed mathematical model takes into account many factors affecting the anisotropy of the country's economic space development, and allows us to propose an optimal strategy for managing regions. In the work using a cluster model based on hierarchical algorithms, graphs-dendrograms are constructed and regions are classified according to their level of competitiveness.
Держатели документа:
WKU
Доп.точки доступа:
Akanova, K.M.
Lastovetsky, A.L.
62.
Подробнее
32.973
Y45
Yerassyl, K.
Sentiment analysis of Kaspi product reviews. [Текст] / K. Yerassyl // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №5. - P. 68-73
ББК 32.973
Рубрики: information Technology
Кл.слова (ненормированные):
sentiment analysis -- classification -- text analysis -- reviews -- data collection
Аннотация: Customer reviews are the key to the success functionality for the companies. A producer will gain the true result of his products from the customer feedback. What should the seller do to achieve good quality for his product? Just by looking at the stars and reading the usual text, the seller will not be able to improve their product well enough, because different people can understand the same text in different ways. That’s why, the seller can improve the wrong part of their product and make their product worse. Sentimental analysis can be applied here. He can make necessary changes to his product according to the feedback. However, it is common to see when most client may inadequately overestimate or underestimate the mark. To avoid the confusion, it is better to analyze the text. This paper focus on the sentiment feedback analysis and finding the relationship between reviews and ratings on the basis of data collected from ”Kaspi.kz” marketplace. These data streams are cleaned and analyzed and reviews is got through opinion mining. We used several algorithms to find the best one. The experiments have shown 92% accuracy in the sentimental analysis
Держатели документа:
WKU
Доп.точки доступа:
Akhmetov, I.
Jaxylykova, A.
Y45
Yerassyl, K.
Sentiment analysis of Kaspi product reviews. [Текст] / K. Yerassyl // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №5. - P. 68-73
Рубрики: information Technology
Кл.слова (ненормированные):
sentiment analysis -- classification -- text analysis -- reviews -- data collection
Аннотация: Customer reviews are the key to the success functionality for the companies. A producer will gain the true result of his products from the customer feedback. What should the seller do to achieve good quality for his product? Just by looking at the stars and reading the usual text, the seller will not be able to improve their product well enough, because different people can understand the same text in different ways. That’s why, the seller can improve the wrong part of their product and make their product worse. Sentimental analysis can be applied here. He can make necessary changes to his product according to the feedback. However, it is common to see when most client may inadequately overestimate or underestimate the mark. To avoid the confusion, it is better to analyze the text. This paper focus on the sentiment feedback analysis and finding the relationship between reviews and ratings on the basis of data collected from ”Kaspi.kz” marketplace. These data streams are cleaned and analyzed and reviews is got through opinion mining. We used several algorithms to find the best one. The experiments have shown 92% accuracy in the sentimental analysis
Держатели документа:
WKU
Доп.точки доступа:
Akhmetov, I.
Jaxylykova, A.
63.
Подробнее
24
M96
Murzakassymova, N. C.
Modified sorbents and their application for extraction of metal ions. [Текст] / N. C. Murzakassymova, N. A. Bektenov, M. A. Gavrilenko // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №1. - P. 75-79
ББК 24
Рубрики: chemistry
Кл.слова (ненормированные):
coal -- sorbents -- modification -- sorption isotherm -- sorbent capacity -- oleum
Аннотация: The data on accumulated mining waste in the territory of Kazakhstan are presented. Their processing has become very important in our time. The structure of surface-modified carbon materials with a grafted layer is given. New modified carbon sorbents were obtained, oleum was used as a modifying agent. It was revealed that the capacitive characteristics of the modified sorbent are significantly higher than that of the original one, which will make it possible to more efficiently extract the metal ion from wastewater and technogenic formations. Sorption is an effective method of extracting valuable components from wastewater and man-made formations. This method allows you to recover valuable substances with a high degree of wastewater treatment, which can be purified to the maximum permissible concentration of pollutants and then used in technological processes or in recycling water supply systems. Processing involves ores characterized by a low content of valuable components, fine dissemination and similar technological properties of minerals. The existing technologies for the development of minerals make it possible to use only a small part of the valuable mineral mass extracted from the subsoil, and the rest forms waste, which, as it accumulates and is stored, becomes one of the most significant factors of anthropogenic changes in the environment.
Держатели документа:
WKU
Доп.точки доступа:
Bektenov, N. A.
Gavrilenko, M. A.
M96
Murzakassymova, N. C.
Modified sorbents and their application for extraction of metal ions. [Текст] / N. C. Murzakassymova, N. A. Bektenov, M. A. Gavrilenko // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №1. - P. 75-79
Рубрики: chemistry
Кл.слова (ненормированные):
coal -- sorbents -- modification -- sorption isotherm -- sorbent capacity -- oleum
Аннотация: The data on accumulated mining waste in the territory of Kazakhstan are presented. Their processing has become very important in our time. The structure of surface-modified carbon materials with a grafted layer is given. New modified carbon sorbents were obtained, oleum was used as a modifying agent. It was revealed that the capacitive characteristics of the modified sorbent are significantly higher than that of the original one, which will make it possible to more efficiently extract the metal ion from wastewater and technogenic formations. Sorption is an effective method of extracting valuable components from wastewater and man-made formations. This method allows you to recover valuable substances with a high degree of wastewater treatment, which can be purified to the maximum permissible concentration of pollutants and then used in technological processes or in recycling water supply systems. Processing involves ores characterized by a low content of valuable components, fine dissemination and similar technological properties of minerals. The existing technologies for the development of minerals make it possible to use only a small part of the valuable mineral mass extracted from the subsoil, and the rest forms waste, which, as it accumulates and is stored, becomes one of the most significant factors of anthropogenic changes in the environment.
Держатели документа:
WKU
Доп.точки доступа:
Bektenov, N. A.
Gavrilenko, M. A.
64.
Подробнее
28
K42
Khalmurzayeva, B. A.
Biochemical indicators and application of Cyanobacteria Spirulina Microalgae in the cattle feedstuff. [Текст] / B. A. Khalmurzayeva, B. Sh. Ismailkhodjaev, K. P. Kuatbekova, R. S. Alibekov [et al.] // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №1. - P. 80-88
ББК 28
Рубрики: Biology
Кл.слова (ненормированные):
antioxidants -- biologically active substances -- cultivation -- genus -- microalgae -- phyto-cultures -- Spirulina
Аннотация: The qualitative and quantitative compositions of the valuable biologically active substances, species and strains of microalgae are related the genus of CyanobacteriaSp.platensis and Sp.labgrinthifosmis that were isolated from local nature and grown in semi-production facilities were considered. In order to adapt for mass cultivation, algae were first grown in greenhouse conditions. The algae were cultivated within 12 days. The produc-tivity in the tubular cultivator with stirring of Sp.platensis was 3.8 g / l, protein (73.0%), and Sp.laberinthiformis was 2.6 g / l of protein (63.1%). Similar studies were carried out in the open-air conditions that showed an increase in the amount of illumination causes a significant restructuring of the entire photosynthetic apparatus of algae. The accumulation of Sp.labyrinthiformis 2.7 g / l a.d.c., protein 62.21%, and Sp.platensis 4.08 g / l, protein 75.3%, were within 10 days. The content of protein and carotenes sharply increases in comparison with the greenhouse conditions. It was found that the addition of Sp.platensis suspension, as a protein-vitamin supplement for the bulls’ feedstuff, stimulates physiological processes that improves the biochemical parameters of their blood, the digestibility coefficient of nutrients by 8-9%, positive mineral balance, increases live weight gain (17.4%) and slaughter yield of the bulls (3.6%). So, the suspension of Sp.platensis is recommended for use as a protein-vitamin supplement in livestock farms that will allow having a significant economic effect in livestock farming, in average 20-25% profits per yearly.
Держатели документа:
WKU
Доп.точки доступа:
Ismailkhodjaev, B. Sh.
Kuatbekova, K. P.
Alibekov, R. S.
Makhatova, A. I.
Meimanbaeva, S. S.
K42
Khalmurzayeva, B. A.
Biochemical indicators and application of Cyanobacteria Spirulina Microalgae in the cattle feedstuff. [Текст] / B. A. Khalmurzayeva, B. Sh. Ismailkhodjaev, K. P. Kuatbekova, R. S. Alibekov [et al.] // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №1. - P. 80-88
Рубрики: Biology
Кл.слова (ненормированные):
antioxidants -- biologically active substances -- cultivation -- genus -- microalgae -- phyto-cultures -- Spirulina
Аннотация: The qualitative and quantitative compositions of the valuable biologically active substances, species and strains of microalgae are related the genus of CyanobacteriaSp.platensis and Sp.labgrinthifosmis that were isolated from local nature and grown in semi-production facilities were considered. In order to adapt for mass cultivation, algae were first grown in greenhouse conditions. The algae were cultivated within 12 days. The produc-tivity in the tubular cultivator with stirring of Sp.platensis was 3.8 g / l, protein (73.0%), and Sp.laberinthiformis was 2.6 g / l of protein (63.1%). Similar studies were carried out in the open-air conditions that showed an increase in the amount of illumination causes a significant restructuring of the entire photosynthetic apparatus of algae. The accumulation of Sp.labyrinthiformis 2.7 g / l a.d.c., protein 62.21%, and Sp.platensis 4.08 g / l, protein 75.3%, were within 10 days. The content of protein and carotenes sharply increases in comparison with the greenhouse conditions. It was found that the addition of Sp.platensis suspension, as a protein-vitamin supplement for the bulls’ feedstuff, stimulates physiological processes that improves the biochemical parameters of their blood, the digestibility coefficient of nutrients by 8-9%, positive mineral balance, increases live weight gain (17.4%) and slaughter yield of the bulls (3.6%). So, the suspension of Sp.platensis is recommended for use as a protein-vitamin supplement in livestock farms that will allow having a significant economic effect in livestock farming, in average 20-25% profits per yearly.
Держатели документа:
WKU
Доп.точки доступа:
Ismailkhodjaev, B. Sh.
Kuatbekova, K. P.
Alibekov, R. S.
Makhatova, A. I.
Meimanbaeva, S. S.
65.
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.
66.
Подробнее
24
K21
Karmanovskaya, N. V.
Public environmental monitoring of the state of snowpack in norilsk. [Текст] / N. V. Karmanovskaya, O. V. Nosova, A. V. Kaverzin // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №1. - P. 95-103
ББК 24
Рубрики: chemistry
Кл.слова (ненормированные):
precipitation -- industrial area -- melt water -- chemical characteristics
Аннотация: It is considered that Norilsk ranks second in terms of atmospheric contamination. Industrial enterprises annually emit large amounts of sulphur dioxide, phenols, and heavy metal particles. The city is located within the Far North and is distinguished by the harsh climate of the subarctic type. The snow cover can lie from 244 to 277 days. Snow is a good sorbent; therefore, the snow cover accumulates solid and gaseous pollutants that enter it from the atmosphere with precipitation or are absorbed from it. The purpose of this study was to analyse the snow cover in the Norilsk industrial region and assess the state of atmospheric air in the winter. To achieve this goal, it is necessary to solve the following tasks: conduct a literature review on a given topic; take samples of snow in various industrial districts of Norilsk; study the dependence of the qualitative characteristics of snow on the sampling site; draw conclusions on the quality of snowpack in different areas of the industrial districts of Norilsk. In the course of the study, the following methods were used: organoleptic, visual, methods for determining water transparency, titrimetric analysis, etc. Heavy metal ions and sulphate ions were not detected in the thawed snow, so no industrial gas pollution was noted in the residential area. Most of the particulate contamination was caused by slagging of roads to improve vehicle traction.
Держатели документа:
WKU
Доп.точки доступа:
Nosova, O. V.
Kaverzin, A. V.
K21
Karmanovskaya, N. V.
Public environmental monitoring of the state of snowpack in norilsk. [Текст] / N. V. Karmanovskaya, O. V. Nosova, A. V. Kaverzin // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №1. - P. 95-103
Рубрики: chemistry
Кл.слова (ненормированные):
precipitation -- industrial area -- melt water -- chemical characteristics
Аннотация: It is considered that Norilsk ranks second in terms of atmospheric contamination. Industrial enterprises annually emit large amounts of sulphur dioxide, phenols, and heavy metal particles. The city is located within the Far North and is distinguished by the harsh climate of the subarctic type. The snow cover can lie from 244 to 277 days. Snow is a good sorbent; therefore, the snow cover accumulates solid and gaseous pollutants that enter it from the atmosphere with precipitation or are absorbed from it. The purpose of this study was to analyse the snow cover in the Norilsk industrial region and assess the state of atmospheric air in the winter. To achieve this goal, it is necessary to solve the following tasks: conduct a literature review on a given topic; take samples of snow in various industrial districts of Norilsk; study the dependence of the qualitative characteristics of snow on the sampling site; draw conclusions on the quality of snowpack in different areas of the industrial districts of Norilsk. In the course of the study, the following methods were used: organoleptic, visual, methods for determining water transparency, titrimetric analysis, etc. Heavy metal ions and sulphate ions were not detected in the thawed snow, so no industrial gas pollution was noted in the residential area. Most of the particulate contamination was caused by slagging of roads to improve vehicle traction.
Держатели документа:
WKU
Доп.точки доступа:
Nosova, O. V.
Kaverzin, A. V.
67.
Подробнее
35
K21
Karmanovskaya , N. V.
Public environmental monitoring of drinking water quality in the city of Norilsk. [Текст] / N. V. Karmanovskaya // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №1. - P. 104-111
ББК 35
Рубрики: chemical Technology
Кл.слова (ненормированные):
ecological situation -- industrial city -- water supply -- public utilities
Аннотация: According to UN estimates, the shortage of safe drinking water can become one of the most acute and pressing problems. The specificity of this problem for Russia is not a shortage of water resources, but their pollution and ongoing degradation of water bodies. The quality of water is understood as the totality of its properties associated with the nature and concentration of impurities in the water. Water analysis is the only tool for monitoring its condition and properties. During the experiment, a team of researchers took samples of drinking water from the water supply network in various districts of the Norilsk industrial region, studied the dependence of the quality characteristics of water on the location and sampling method. Based on the findings, conclusions on the quality of drinking water were drawn. During the experiment, the authors found that in terms of organoleptic indicators, drinking water in all areas of the NIR meets the requirements of Sanitary Rules and Regulations and GOST. Taking samples at three control points of the Norilsk industrial region, it has been proven that the water is soft and its salt content is mainly due to the presence of hardness salts. Having made the necessary analyses, the authors found that the presence of microorganisms in the water supply network of the NIR is not significant, the permanganate oxidisability indicator does not exceed the requirements of Sanitary Rules and Regulations.
Держатели документа:
WKU
K21
Karmanovskaya , N. V.
Public environmental monitoring of drinking water quality in the city of Norilsk. [Текст] / N. V. Karmanovskaya // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №1. - P. 104-111
Рубрики: chemical Technology
Кл.слова (ненормированные):
ecological situation -- industrial city -- water supply -- public utilities
Аннотация: According to UN estimates, the shortage of safe drinking water can become one of the most acute and pressing problems. The specificity of this problem for Russia is not a shortage of water resources, but their pollution and ongoing degradation of water bodies. The quality of water is understood as the totality of its properties associated with the nature and concentration of impurities in the water. Water analysis is the only tool for monitoring its condition and properties. During the experiment, a team of researchers took samples of drinking water from the water supply network in various districts of the Norilsk industrial region, studied the dependence of the quality characteristics of water on the location and sampling method. Based on the findings, conclusions on the quality of drinking water were drawn. During the experiment, the authors found that in terms of organoleptic indicators, drinking water in all areas of the NIR meets the requirements of Sanitary Rules and Regulations and GOST. Taking samples at three control points of the Norilsk industrial region, it has been proven that the water is soft and its salt content is mainly due to the presence of hardness salts. Having made the necessary analyses, the authors found that the presence of microorganisms in the water supply network of the NIR is not significant, the permanganate oxidisability indicator does not exceed the requirements of Sanitary Rules and Regulations.
Держатели документа:
WKU
68.
Подробнее
48
V11
Vafin, R. R.
Technology of bovine leukemia virus genodiagnostics in cattle, in produced raw materials and products. [Текст] / R. R. Vafin, Kh. Kh. Gilmanov, A. G. Galstyan, N. S Pryanichnikova [et al.] // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №1. - P. 119-125
ББК 48
Рубрики: Ветеринария
Кл.слова (ненормированные):
Bovine leukemia virus -- BLV -- cattle -- milk -- PCR -- RFLP -- sequencing -- gene diagnostics -- genotyping -- env-gene
Аннотация: The most important task of the dairy cattle industry is to obtain high quality raw milk. To achieve it, a set of measures is required, including aimed at increasing the biological safety of produced raw materials. The aim of the study was to create a scientific and methodological basis for the Bovine leukemia virus (BLV) gene diagnostics in a combined format of pathogen indication and identification. This required updating the strategy of BLVPCR-RFLP genotyping, consistent with its phylogenetic classification, taking into account the growing knowledge about the genetic diversity of 11 genotypes of the studied viral pathogen. When staging nested PCR, oligonucleotide primers were used, which initiate at the final stage of the reaction the production of a 444 bp env-gene fragment of the pathogen. Five restriction endonucleases were used in PCR-RFLP BLV genotyping of: PvuII, SspI, AsuHPI, HaeIII, and BstX2I. As a result of verification of the developed Bovine leukemia virus method for gene identification with an updated genotyping strategy, a technical result was obtained, expressed in the ability to identify all 11 BLV genotypes discovered to date by interpreting the generated 58 genotype-associated combinations of PCR-RFLP profiles.
Держатели документа:
WKU
Доп.точки доступа:
Gilmanov, Kh. Kh.
Galstyan, A. G.
Pryanichnikova, N. S
Bigaeva, A. V.
Lazareva, E. G.
Kazakova, V. S.
V11
Vafin, R. R.
Technology of bovine leukemia virus genodiagnostics in cattle, in produced raw materials and products. [Текст] / R. R. Vafin, Kh. Kh. Gilmanov, A. G. Galstyan, N. S Pryanichnikova [et al.] // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №1. - P. 119-125
Рубрики: Ветеринария
Кл.слова (ненормированные):
Bovine leukemia virus -- BLV -- cattle -- milk -- PCR -- RFLP -- sequencing -- gene diagnostics -- genotyping -- env-gene
Аннотация: The most important task of the dairy cattle industry is to obtain high quality raw milk. To achieve it, a set of measures is required, including aimed at increasing the biological safety of produced raw materials. The aim of the study was to create a scientific and methodological basis for the Bovine leukemia virus (BLV) gene diagnostics in a combined format of pathogen indication and identification. This required updating the strategy of BLVPCR-RFLP genotyping, consistent with its phylogenetic classification, taking into account the growing knowledge about the genetic diversity of 11 genotypes of the studied viral pathogen. When staging nested PCR, oligonucleotide primers were used, which initiate at the final stage of the reaction the production of a 444 bp env-gene fragment of the pathogen. Five restriction endonucleases were used in PCR-RFLP BLV genotyping of: PvuII, SspI, AsuHPI, HaeIII, and BstX2I. As a result of verification of the developed Bovine leukemia virus method for gene identification with an updated genotyping strategy, a technical result was obtained, expressed in the ability to identify all 11 BLV genotypes discovered to date by interpreting the generated 58 genotype-associated combinations of PCR-RFLP profiles.
Держатели документа:
WKU
Доп.точки доступа:
Gilmanov, Kh. Kh.
Galstyan, A. G.
Pryanichnikova, N. S
Bigaeva, A. V.
Lazareva, E. G.
Kazakova, V. S.
69.
Подробнее
4
P93
Productivity and accumulation of heavy metalsin the grain of various genotypes of spring barley under conditions of soil contamination with copper and lead [Текст] / R. A. Alybayeva, M. N. Kalmakhan, Z. A. Inelova [и др.] // Доклады национальной академии наук Республики Казахстан. - 2021. - №1. - Р. 96-103
ББК 4
Рубрики: Сельское и лесное хозяйство
Кл.слова (ненормированные):
тяжелый металл -- зерно ячменя -- фитостабилизация -- генотип
Аннотация: Загрязнение среды, особенно химическими веществами, является одним из самых сильных факторов нарушения компонентов биосферы. В настоящее время в биосферу поступает множество загрязнителей. Среди них – значительные тяжелые металлы. Среди химических элементов наиболее токсичными являются тяжелые металлы. Опасность повышения содержания тяжелых металлов в почве и тяжелых металлов в атмосфере связана с активными всасываниями и скоплением растений, которые не только отрицательно влияют на их активные действия, но и угрожают здоровью человека и животных. Опасность металлов заключается в том, что они обладают кумулятивным действием и сохраняют эти токсичные свойства в течение длительного времени. В связи с задачей изучения генофонда культурных растений в условиях техногенного загрязнения было исследование металлостойкости сортов ячменя с целью выявления перспективных форм для выращивания в Восточно-Казахстанском регионе, а также селекционных доноров, собирающих минимальное количество загрязнителей. Полученные результаты позволяют предложить устойчивых к тяжелым металлам доноров, которые могут быть использованы в племенных и генетических исследованиях. Ячмень является концентрированным продуктом для животных, так как состав богат крахмалом и белком. Семена ячменя, наряду с аминокислотами, белок, лизин и триптофан, которые не могут быть заменены другим веществом, сохранены лучше, чем в других культурах. Ячмень по Казахстану занимает второе место после пшеницы. Восточно-Казахстанский регион благоприятен и востребован для выращивания ячменя. Однако поражение сосудов тяжелым металлом повлияло на ввод продукции в действие.
Держатели документа:
ЗКУ
Доп.точки доступа:
Alybayeva, R.A.
Kalmakhan, M.N.
Inelova, Z.A.
Atabayeva, S.D.
Akhambayeva, N.S.
Autkhanova, N.M.
P93
Productivity and accumulation of heavy metalsin the grain of various genotypes of spring barley under conditions of soil contamination with copper and lead [Текст] / R. A. Alybayeva, M. N. Kalmakhan, Z. A. Inelova [и др.] // Доклады национальной академии наук Республики Казахстан. - 2021. - №1. - Р. 96-103
Рубрики: Сельское и лесное хозяйство
Кл.слова (ненормированные):
тяжелый металл -- зерно ячменя -- фитостабилизация -- генотип
Аннотация: Загрязнение среды, особенно химическими веществами, является одним из самых сильных факторов нарушения компонентов биосферы. В настоящее время в биосферу поступает множество загрязнителей. Среди них – значительные тяжелые металлы. Среди химических элементов наиболее токсичными являются тяжелые металлы. Опасность повышения содержания тяжелых металлов в почве и тяжелых металлов в атмосфере связана с активными всасываниями и скоплением растений, которые не только отрицательно влияют на их активные действия, но и угрожают здоровью человека и животных. Опасность металлов заключается в том, что они обладают кумулятивным действием и сохраняют эти токсичные свойства в течение длительного времени. В связи с задачей изучения генофонда культурных растений в условиях техногенного загрязнения было исследование металлостойкости сортов ячменя с целью выявления перспективных форм для выращивания в Восточно-Казахстанском регионе, а также селекционных доноров, собирающих минимальное количество загрязнителей. Полученные результаты позволяют предложить устойчивых к тяжелым металлам доноров, которые могут быть использованы в племенных и генетических исследованиях. Ячмень является концентрированным продуктом для животных, так как состав богат крахмалом и белком. Семена ячменя, наряду с аминокислотами, белок, лизин и триптофан, которые не могут быть заменены другим веществом, сохранены лучше, чем в других культурах. Ячмень по Казахстану занимает второе место после пшеницы. Восточно-Казахстанский регион благоприятен и востребован для выращивания ячменя. Однако поражение сосудов тяжелым металлом повлияло на ввод продукции в действие.
Держатели документа:
ЗКУ
Доп.точки доступа:
Alybayeva, R.A.
Kalmakhan, M.N.
Inelova, Z.A.
Atabayeva, S.D.
Akhambayeva, N.S.
Autkhanova, N.M.
70.
Подробнее
35
D99
Dzhumadullaeva, S. A.
The kinetics of selective hydrazinolysis of maleic acid on the acid catalyst. [Текст] / S. A. Dzhumadullaeva, A. B. Bayeshov, A. V. Kolesnikov // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №2. - P. 53-57
ББК 35
Рубрики: chemical Technology
Кл.слова (ненормированные):
maleic acid -- hydrazinolysis -- hydrazide -- catalyst
Аннотация: For the first time, kinetics and the mechanism of the reaction of hydrazinolysis of maleic acid in the presence of cation exchanger resin KU-2-8 in H-form have been studied. The experiments were carried out in a static system in a thermostat glass reactor. It was found that cation exchanger shows high catalytic activity in the studied process - maleic acid conversion was 93%, and maleic hydrazide yield was 90%. The conversion selectivity of maleic acid to maleic hydrazide was 97,8%. The reaction rate was determined from the accumulation of maleic hydrazide. The apparent reaction rate constant (k) was calculated from the second-order reaction rate equation. The effect of initial concentrations of maleic acid and hydrazine hydrate, the temperature on the reaction rate was studied. The first order of maleic acid and hydrazine hydrate is determined. Activation energy of the process found from the Arrhenius dependence is 32,1 kJ/mol. On the basis of kinetic and IR spectroscopic methods, a probable reaction mechanism involving polymer-bound hydrogen ions is proposed.
Держатели документа:
WKU
Доп.точки доступа:
Bayeshov, A.B.
Kolesnikov, A.V.
D99
Dzhumadullaeva, S. A.
The kinetics of selective hydrazinolysis of maleic acid on the acid catalyst. [Текст] / S. A. Dzhumadullaeva, A. B. Bayeshov, A. V. Kolesnikov // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №2. - P. 53-57
Рубрики: chemical Technology
Кл.слова (ненормированные):
maleic acid -- hydrazinolysis -- hydrazide -- catalyst
Аннотация: For the first time, kinetics and the mechanism of the reaction of hydrazinolysis of maleic acid in the presence of cation exchanger resin KU-2-8 in H-form have been studied. The experiments were carried out in a static system in a thermostat glass reactor. It was found that cation exchanger shows high catalytic activity in the studied process - maleic acid conversion was 93%, and maleic hydrazide yield was 90%. The conversion selectivity of maleic acid to maleic hydrazide was 97,8%. The reaction rate was determined from the accumulation of maleic hydrazide. The apparent reaction rate constant (k) was calculated from the second-order reaction rate equation. The effect of initial concentrations of maleic acid and hydrazine hydrate, the temperature on the reaction rate was studied. The first order of maleic acid and hydrazine hydrate is determined. Activation energy of the process found from the Arrhenius dependence is 32,1 kJ/mol. On the basis of kinetic and IR spectroscopic methods, a probable reaction mechanism involving polymer-bound hydrogen ions is proposed.
Держатели документа:
WKU
Доп.точки доступа:
Bayeshov, A.B.
Kolesnikov, A.V.
Страница 7, Результатов: 89