База данных: Статьи
Страница 1, Результатов: 15
Отмеченные записи: 0
1.
Подробнее
22.2
L10
Kydyrbekuly, A. B
About the separation of finely divided particles during centrifugation inliquid media [Текст] / A.B Kydyrbekuly // Әл - Фараби ат. ҚҰУ Хабаршы = Вестник КазНУ им Аль - Фараби. - Алматы, 2018. - №2(98). - С. 33-44. - (Математика, механика, информатика сериясы=Серия математика, механика, информатика. Journal of Mathematics, Mechanics, Computer Science.)
ББК 22.2
Рубрики: Механика
Кл.слова (ненормированные):
separation -- settling -- centrifuge -- multiphase fluid -- rotor system -- demetallization of oil
Аннотация: This work is devoted to the study of centrifugation processes, which are one of the most complexprocesses of technology. The use of the action of the centrifugal force field for the separationof heterogeneous liquid systems in a rotor system (centrifuge) is very effective. Separability ofcentrifuged materials, multiphase dispersion, the relationship between phases cause ambiguousprocesses of centrifugation, and therefore it is not always possible to accurately predict and evaluatethe main characteristics of the separation of heterogeneous systems in the centrifugal force field.For a qualitative assessment of the main separation characteristics, such as the angular velocityof rotation, the dependence of the angles of inclination of the glasses on the angular velocity, thesettling time of particles, etc., is created a mathematical model of the vertical rotor system. Therotor represents a round disk on which cups (vial) with a multiphase liquid are symmetricallysuspended. A particular case of a fixed rotor is considered. Nonlinear differential equations ofmotion of the suspension particle, which have no exact solution, are obtained. The research isconducted by analytical and numerical methods. The dependence of the slope angles of the tubesfrom the angular rotational speed of the rotor, sedimentation curves are obtained , which allowestimating the time of particle deposition and the effect of the particle size distribution on theseparation process. The results of this research work allow us to determine with sufficient accuracyall the necessary characteristics of the sedimentation working process, and also, in certain cases,it is possible to exclude the conduct of experimental work. The results of the work confirm thephysical meaning of the process, which can serve as a justification for the use and introduction ofthis mathematical model in industrial production.
Держатели документа:
ЗКГУ
Доп.точки доступа:
Rahmetolla, A.Sh
Ibraev, G.E
L10
Kydyrbekuly, A. B
About the separation of finely divided particles during centrifugation inliquid media [Текст] / A.B Kydyrbekuly // Әл - Фараби ат. ҚҰУ Хабаршы = Вестник КазНУ им Аль - Фараби. - Алматы, 2018. - №2(98). - С. 33-44. - (Математика, механика, информатика сериясы=Серия математика, механика, информатика. Journal of Mathematics, Mechanics, Computer Science.)
Рубрики: Механика
Кл.слова (ненормированные):
separation -- settling -- centrifuge -- multiphase fluid -- rotor system -- demetallization of oil
Аннотация: This work is devoted to the study of centrifugation processes, which are one of the most complexprocesses of technology. The use of the action of the centrifugal force field for the separationof heterogeneous liquid systems in a rotor system (centrifuge) is very effective. Separability ofcentrifuged materials, multiphase dispersion, the relationship between phases cause ambiguousprocesses of centrifugation, and therefore it is not always possible to accurately predict and evaluatethe main characteristics of the separation of heterogeneous systems in the centrifugal force field.For a qualitative assessment of the main separation characteristics, such as the angular velocityof rotation, the dependence of the angles of inclination of the glasses on the angular velocity, thesettling time of particles, etc., is created a mathematical model of the vertical rotor system. Therotor represents a round disk on which cups (vial) with a multiphase liquid are symmetricallysuspended. A particular case of a fixed rotor is considered. Nonlinear differential equations ofmotion of the suspension particle, which have no exact solution, are obtained. The research isconducted by analytical and numerical methods. The dependence of the slope angles of the tubesfrom the angular rotational speed of the rotor, sedimentation curves are obtained , which allowestimating the time of particle deposition and the effect of the particle size distribution on theseparation process. The results of this research work allow us to determine with sufficient accuracyall the necessary characteristics of the sedimentation working process, and also, in certain cases,it is possible to exclude the conduct of experimental work. The results of the work confirm thephysical meaning of the process, which can serve as a justification for the use and introduction ofthis mathematical model in industrial production.
Держатели документа:
ЗКГУ
Доп.точки доступа:
Rahmetolla, A.Sh
Ibraev, G.E
2.
Подробнее
32.81
T96
Turar, O. N
Design of adaptive unstructured grids using differential methods [Текст] / O.N Turar // Әл - Фараби ат. ҚҰУ Хабаршы = Вестник КазНУ им Аль - Фараби. - Алматы, 2018. - №2(98). - Р. 88-97. - (Математика, механика, информатика сериясы=Серия математика, механика, информатика. Journal of Mathematics, Mechanics, Computer Science.)
ББК 32.81
Рубрики: Информатика
Кл.слова (ненормированные):
computational grid construction algorithm -- unstructured mesh -- adaptive mesh -- differential elliptic equations -- reversed Beltrami equation
Аннотация: Adaptive generation of computational grids can improve the efficiency of mathematical model-ing by increasing the accuracy of numerical approximations. The paper describes a method forconstructing unstructured grids with adaptation based on differential methods. The applicationof these methods ensures a smooth distribution of the geometric characteristics of the grid, i.e.the appearance of adjacent cells that differ greatly in size and shape becomes unlikely. To achieveproper adaptation in unstructured grids we use the novel approach based on methodology of adap-tive structured grid construction. This approach uses the method of grid construction based onsolving inverted Beltrami equation to create mapping of some sample grid domain to the physicalarea. This mapping is used to construct point set on which the unstructured grid is constructedusing Delaunay triangulation method. Thus, the result is unstructured grid with proper adapta-tion. Adding fault and fractures or other structure elements may be supported by implementingconstrained Delaunay triangulation.
Держатели документа:
ЗКГУ
Доп.точки доступа:
Akhmed-Zaki, D.Zh
T96
Turar, O. N
Design of adaptive unstructured grids using differential methods [Текст] / O.N Turar // Әл - Фараби ат. ҚҰУ Хабаршы = Вестник КазНУ им Аль - Фараби. - Алматы, 2018. - №2(98). - Р. 88-97. - (Математика, механика, информатика сериясы=Серия математика, механика, информатика. Journal of Mathematics, Mechanics, Computer Science.)
Рубрики: Информатика
Кл.слова (ненормированные):
computational grid construction algorithm -- unstructured mesh -- adaptive mesh -- differential elliptic equations -- reversed Beltrami equation
Аннотация: Adaptive generation of computational grids can improve the efficiency of mathematical model-ing by increasing the accuracy of numerical approximations. The paper describes a method forconstructing unstructured grids with adaptation based on differential methods. The applicationof these methods ensures a smooth distribution of the geometric characteristics of the grid, i.e.the appearance of adjacent cells that differ greatly in size and shape becomes unlikely. To achieveproper adaptation in unstructured grids we use the novel approach based on methodology of adap-tive structured grid construction. This approach uses the method of grid construction based onsolving inverted Beltrami equation to create mapping of some sample grid domain to the physicalarea. This mapping is used to construct point set on which the unstructured grid is constructedusing Delaunay triangulation method. Thus, the result is unstructured grid with proper adapta-tion. Adding fault and fractures or other structure elements may be supported by implementingconstrained Delaunay triangulation.
Держатели документа:
ЗКГУ
Доп.точки доступа:
Akhmed-Zaki, D.Zh
3.
Подробнее
65.26
М 17
Relationship between cash conversion cycle, firm size and profitability: a cross-industrial analysis [Текст] / C. Ugur , G. Maksut // Қазақстан жоғары мектебі = Высшая школа Казахстана. - 2018. - №3. - Р. 40-43
ББК 65.26
Рубрики: Финансы.
Кл.слова (ненормированные):
финансы -- кросс-промышленный анализ -- деньги -- размер фирм
Аннотация: Статья и финансах
Держатели документа:
ЗКГУ
Доп.точки доступа:
Ugur , C.
Maksut, G.
М 17
Relationship between cash conversion cycle, firm size and profitability: a cross-industrial analysis [Текст] / C. Ugur , G. Maksut // Қазақстан жоғары мектебі = Высшая школа Казахстана. - 2018. - №3. - Р. 40-43
Рубрики: Финансы.
Кл.слова (ненормированные):
финансы -- кросс-промышленный анализ -- деньги -- размер фирм
Аннотация: Статья и финансах
Держатели документа:
ЗКГУ
Доп.точки доступа:
Ugur , C.
Maksut, G.
4.
Подробнее
65.290
З-34
Зарубина, В. Р.
Умная специализация для развития малого и среднего предпринимательства в Республике Казахстан [Текст] / В. Р. Зарубина, М. Ю. Зарубин // Вестник национальной инженерной академии Республики Казахстан. - 2021. - №2. - с. 111-120
ББК 65.290
Рубрики: Общие основы экономики предприятия
Кл.слова (ненормированные):
умная специализация -- развитие малого и среднего предпринимательства -- ақылды мамандану -- шағын кәсіпкерлікті дамыту -- орта кәсіпкерлікті дамыту -- smart specialization -- development of small and medium-sized businesses
Аннотация: В статье рассмотрены вопросы развития малого и среднего предпринимательства с учетом концепции умной специализации. Представлена комбинация данных "четверной спирали" направленной на формирование и интенсификацию сетевых взаимодействий составляющих бизнес-государство-наука-гражданское общество для создания эволюционного, "умного" устойчивого предпринимательства, роста экономики регионов и страны в целом. Выполнен анализ и классификация регионов по уровню производства валового регионального продукта, определен набор специализации. Проведен мониторинг целевых ориентиров достижения ключевых показателей инновационного развития страны. Представлена последовательность работы с умной специализацией. Сделаны выводы по дальнейшему развитию малого и среднего предпринимательства в Республике Казахстан.
Держатели документа:
ЗКУ им. М. Утемисова
Доп.точки доступа:
Зарубин, М. Ю.
З-34
Зарубина, В. Р.
Умная специализация для развития малого и среднего предпринимательства в Республике Казахстан [Текст] / В. Р. Зарубина, М. Ю. Зарубин // Вестник национальной инженерной академии Республики Казахстан. - 2021. - №2. - с. 111-120
Рубрики: Общие основы экономики предприятия
Кл.слова (ненормированные):
умная специализация -- развитие малого и среднего предпринимательства -- ақылды мамандану -- шағын кәсіпкерлікті дамыту -- орта кәсіпкерлікті дамыту -- smart specialization -- development of small and medium-sized businesses
Аннотация: В статье рассмотрены вопросы развития малого и среднего предпринимательства с учетом концепции умной специализации. Представлена комбинация данных "четверной спирали" направленной на формирование и интенсификацию сетевых взаимодействий составляющих бизнес-государство-наука-гражданское общество для создания эволюционного, "умного" устойчивого предпринимательства, роста экономики регионов и страны в целом. Выполнен анализ и классификация регионов по уровню производства валового регионального продукта, определен набор специализации. Проведен мониторинг целевых ориентиров достижения ключевых показателей инновационного развития страны. Представлена последовательность работы с умной специализацией. Сделаны выводы по дальнейшему развитию малого и среднего предпринимательства в Республике Казахстан.
Держатели документа:
ЗКУ им. М. Утемисова
Доп.точки доступа:
Зарубин, М. Ю.
5.
Подробнее
65
A99
Azimkhan, A.
Analysis of the current condition of small and medium-sized businesses in the Republic of Kazakhstan [Текст] / A. Azimkhan, R. B. Sartova, A. K. Bakpayeva // Bulletin of National Academy of Sciences of the Republic of Kazakhstan. - 2021. - №3. - Р. 14-18
ББК 65
Рубрики: Economics
Кл.слова (ненормированные):
business -- financial instruments -- lending -- small business -- medium business -- financing -- farming -- individual enterpreneur -- trade and intermediary services -- employed population
Аннотация: This article has the aim to explore the policy of supporting of small and medium-sized business.
Держатели документа:
WKU
Доп.точки доступа:
Sartova, R.B.
Bakpayeva , A.K.
A99
Azimkhan, A.
Analysis of the current condition of small and medium-sized businesses in the Republic of Kazakhstan [Текст] / A. Azimkhan, R. B. Sartova, A. K. Bakpayeva // Bulletin of National Academy of Sciences of the Republic of Kazakhstan. - 2021. - №3. - Р. 14-18
Рубрики: Economics
Кл.слова (ненормированные):
business -- financial instruments -- lending -- small business -- medium business -- financing -- farming -- individual enterpreneur -- trade and intermediary services -- employed population
Аннотация: This article has the aim to explore the policy of supporting of small and medium-sized business.
Держатели документа:
WKU
Доп.точки доступа:
Sartova, R.B.
Bakpayeva , A.K.
6.
Подробнее
65
Z10
Zhakupov, Y.
Evaluation of the development of small and medium-sized entrepreneurship in the Republic of Kazakhstan [Текст] / Y. Zhakupov, A. Berzhanova // Bulletin of National Academy of Sciences of the Republic of Kazakhstan. - 2021. - №3. - P. 53-57
ББК 65
Рубрики: Economics
Дескрипторы: small and medium-sized businesses -- mathematical model -- correlation and regression analysis -- economic development -- gdp -- factors of sme development -- problems of sme -- model of sme development -- national economy -- analysis
Аннотация: The article analizes the current state of small and medium-sized businesses in the Republic of Kazakhstan for all key indicators.
Держатели документа:
WKU
Доп.точки доступа:
Berzhanova, A.
Z10
Zhakupov, Y.
Evaluation of the development of small and medium-sized entrepreneurship in the Republic of Kazakhstan [Текст] / Y. Zhakupov, A. Berzhanova // Bulletin of National Academy of Sciences of the Republic of Kazakhstan. - 2021. - №3. - P. 53-57
Рубрики: Economics
Дескрипторы: small and medium-sized businesses -- mathematical model -- correlation and regression analysis -- economic development -- gdp -- factors of sme development -- problems of sme -- model of sme development -- national economy -- analysis
Аннотация: The article analizes the current state of small and medium-sized businesses in the Republic of Kazakhstan for all key indicators.
Держатели документа:
WKU
Доп.точки доступа:
Berzhanova, A.
7.
Подробнее
65
S53
Shamshudinova , G. T.
The population gensus as a large-scale and multi-purpose source of the state information [Текст] / G. T. Shamshudinova , M. A. Altybassarova [et al.] // Bulletin of National Academy of Sciences of the Republic of Kazakhstan. - 2021. - №3. - P. 128-132
ББК 65
Рубрики: Economics
Кл.слова (ненормированные):
census -- historical source -- demographic history -- demograpgic policy -- population accounting -- natural growth -- statistics tables -- dynamics of changes -- population size
Аннотация: The preparation and conduct of the population census in the Republic of Kazakhstan in November 2019, showed the importance of the statistical data, obtained during the population census to determine the main directions of demographic and socio-economic policy of the state, both at the national and regional level.
Держатели документа:
WKU
Доп.точки доступа:
Altybassarova, M.A.
Akhmejanova, G.B.
Turlybekova, A.M.
Aitzhanova, D.N.
S53
Shamshudinova , G. T.
The population gensus as a large-scale and multi-purpose source of the state information [Текст] / G. T. Shamshudinova , M. A. Altybassarova [et al.] // Bulletin of National Academy of Sciences of the Republic of Kazakhstan. - 2021. - №3. - P. 128-132
Рубрики: Economics
Кл.слова (ненормированные):
census -- historical source -- demographic history -- demograpgic policy -- population accounting -- natural growth -- statistics tables -- dynamics of changes -- population size
Аннотация: The preparation and conduct of the population census in the Republic of Kazakhstan in November 2019, showed the importance of the statistical data, obtained during the population census to determine the main directions of demographic and socio-economic policy of the state, both at the national and regional level.
Держатели документа:
WKU
Доп.точки доступа:
Altybassarova, M.A.
Akhmejanova, G.B.
Turlybekova, A.M.
Aitzhanova, D.N.
8.
Подробнее
65.29
U92
Utegenov, E. K.
Problems of entrepreneurship development in the production sector in the republic of Kazakhstan. [Текст] / E. K. Utegenov, Zh. K. Zhanabayeva // Bulletin of National Academy of Sciences of the Republic of Kazakhstan. - 2021. - №2. - P. 24-29
ББК 65.29
Рубрики: Предпринимательство
Кл.слова (ненормированные):
small and medium enterprises -- support -- enterpreneurship -- project -- enterprise development -- production
Аннотация: This article demonstrates and analyzes current quantitative information on the number of enterprises in the field of small and medium-sized businesses in the regional and industry context.
Держатели документа:
WKU
Доп.точки доступа:
Zhanabayeva, Zh. K.
U92
Utegenov, E. K.
Problems of entrepreneurship development in the production sector in the republic of Kazakhstan. [Текст] / E. K. Utegenov, Zh. K. Zhanabayeva // Bulletin of National Academy of Sciences of the Republic of Kazakhstan. - 2021. - №2. - P. 24-29
Рубрики: Предпринимательство
Кл.слова (ненормированные):
small and medium enterprises -- support -- enterpreneurship -- project -- enterprise development -- production
Аннотация: This article demonstrates and analyzes current quantitative information on the number of enterprises in the field of small and medium-sized businesses in the regional and industry context.
Держатели документа:
WKU
Доп.точки доступа:
Zhanabayeva, Zh. K.
9.
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.
10.
Подробнее
36
S53
Shunekeyeva, А. А.
Improving sensory and quality properties of yogurts from goat's milk. [Текст] / А. А. Shunekeyeva, M. K. Alimardanova, A. A. Majorov, G. S. Yeszhanov, O. V. Koltyugina // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №2. - P. 120-127
ББК 36
Рубрики: Пищевое производство
Кл.слова (ненормированные):
blackthorn fruits -- cherry -- goat milk -- nutritional value -- sensory properties -- yogurt
Аннотация: The overall acceptability decreases when adding the non-roasted amaranth flour in a product. The main weakness of this study was the paucity of size of our panel (10 people). With a small sample size, caution must be applied, as the findings might not be transferable to show objective data.
Держатели документа:
WKU
Доп.точки доступа:
Alimardanova, M. K.
Majorov, A. A.
Yeszhanov, G. S.
Koltyugina, O. V.
S53
Shunekeyeva, А. А.
Improving sensory and quality properties of yogurts from goat's milk. [Текст] / А. А. Shunekeyeva, M. K. Alimardanova, A. A. Majorov, G. S. Yeszhanov, O. V. Koltyugina // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №2. - P. 120-127
Рубрики: Пищевое производство
Кл.слова (ненормированные):
blackthorn fruits -- cherry -- goat milk -- nutritional value -- sensory properties -- yogurt
Аннотация: The overall acceptability decreases when adding the non-roasted amaranth flour in a product. The main weakness of this study was the paucity of size of our panel (10 people). With a small sample size, caution must be applied, as the findings might not be transferable to show objective data.
Держатели документа:
WKU
Доп.точки доступа:
Alimardanova, M. K.
Majorov, A. A.
Yeszhanov, G. S.
Koltyugina, O. V.
Страница 1, Результатов: 15