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Genre:Естественные науки (natural_sciences)
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181-190 of 225
periodical press (Magazines)
SERIKBAYEVA A. M.
Serikbayeva, A. M. Methods of preparation and physico-chemical characteristics of organic modified clays with grafted organoaloxides [Text] / A. M. Serikbayeva, M. S. Kalmakhanova , H. T. Gomes [et al.] // Қазақстан Республикасы Ұлттық ғылым академиясының хабарлары. Геология және техникалық ғылымдар сериясы. - 2022. - № 3 (453). - P. 166-180. - Bibliogr.: p. 178-180 ISSN 2224-5278.
UDC:
553.611
Subject headings
- Clay deposits
Annotation
Natural clays were collected from Aktobe deposits in the region of Kazakhstan. It was found that the modified samples exhibit higher sorption properties compared to enriched clay
Keywords
organoclaynes, kaolinite, thermal analysis, intercalated grafting, dimethyl sulfoxide-DMSO, natural clay, modified clay
Kazakhstan
0/0 Free
periodical press (Magazines)
AMIRGALIYEV N.
Amirgaliyev, N. Monitoring of accumulation of polychlorinated biphenyls in the snow cover in the Almaty agglomeration [Text] / N. Amirgaliyev, M. Askarova , R. Kulbekova [et al.] // Қазақстан Республикасы Ұлттық ғылым академиясының хабарлары. Геология және техникалық ғылымдар сериясы. - 2022. - № 4 (454). - P. 28-43. - Bibliogr.: p. 42-43 ISSN 2224-5278.
UDC:
556.124
Subject headings
- Snow cover
Annotation
There are presented results of the accumulation of polychlorinated biphenyls (PCBs) – the most toxic compounds among persistent organic pollutants (POPS) in the snow cover (SC) study (2018 and 2020) in the Almaty agglomeration (AA)
Keywords
snow water, concentration, toxicants, congeners, pollution
Kazakhstan
0/0 Free
periodical press (Magazines)
AKIMBEK G. A.
Akimbek, G. A. Methodology and experimental setup for the study of relative abrasiveness of bulk solids [Text] / G. A. Akimbek, B. K. Aliyarov , V. C. Badaker , Sh. A. Akimbekova // Қазақстан Республикасы Ұлттық ғылым академиясының хабарлары. Геология және техникалық ғылымдар сериясы. - 2022. - № 1 (451). - P. 14-20. - Bibliogr.: p. 19-20 ISSN
UDC:
620.178-026.766
Subject headings
- Abrasiveness of bulk materials
Annotation
This paper presents preliminary results of determining the coefficient of relative abrasiveness of various bulk materials
Keywords
coal, stone, abrasivity coefficient, abrasion, wear, energy, material, speed, angle
Kazakhstan
0/0 Free
periodical press (Magazines)
AMЕRTAYEVA G. A.
Amеrtayeva, G. A. Morphological characteristics and anatomical features of the perennial herb Ajania fastigiata (C. Winkl.) Poljakov (Asteraceae) [Text] / G. A. Amеrtayeva, A. T. Mamurova , Osmonali // Қарағанды университетінің хабаршысы. Биология. Медицина. География сериясы. - 2023. - № 1 (109). - P. 28-36. - Bibliogr.: p. 34 ISSN 2518-7201.
UDC:
581.4
Subject headings
- Plant morphology. Plant anatomy
Annotation
Our object of research is Ajania fastigiata, which is distributed throughout the mountainous territory of the Southern and Southeastern regions of the Republic of Kazakhstan
Keywords
Asteraceae, Ajania fastigiata, medicinal plants, essencial oils, systematic features, Trans-Ili Alatau
Kazakhstan
0/0 Free
periodical press (Magazines)
BULGAKOVA O. V.
Bulgakova, O. V. Molecular mechanisms of radiation-induced aging [Text] / O. V. Bulgakova, N. B. Rezhepova // Қарағанды университетінің хабаршысы. Биология. Медицина. География сериясы. - 2023. - № 3 (111). - P. 35-48. - Bibliogr.: p. 44-48 ISSN 2518-7201.
UDC:
577.2
Subject headings
- Material bases of life. Molecular biology
Annotation
The article examines the molecular mechanisms of radiation-induced aging
Keywords
aging, DNA damage, telomeres , Mitochondrion, MicroRNA, Inflammation, p16, Radiationinduced aging
Kazakhstan
0/0 Free
periodical press (Magazines)
KABIDENOV A.
Kabidenov, A. Model companion properties of some theories [Text] / A. Kabidenov, A. Kasatova , M. I. Bekenov [et al.] // Қарағанды университетінің хабаршысы. Математика сериясы. - 2024. - Vol. 29, № 2 (114). - P. 114-123. - Bibliogr.: p. 120-121 ISSN 2518-7929.
UDC:
512
Subject headings
- Algebra
Annotation
The paper shows that the formula-definable class of algebraic systems isidempotently formula-definable and is an axiomatizable class of algebraic systems
Keywords
model companion, pseudofinite theory, formula-definable class, smoothly approximated structure, псевдоконечная теория, псевдоақырлы теория, модельдiк компаньон, модельный компаньон
Kazakhstan
0/0 Free
periodical press (Magazines)
JAICHIBEKOV N. ZH.
Jaichibekov, N. Zh. Mathematical model and numerical calculation of the movement of oil products in helicoidal heat exchangers [Text] / N. Zh. Jaichibekov, D. Y. Kurmanova , A. S. Zhumanbayeva // Қарағанды университетінің хабаршысы. Физика сериясы. - 2024. - Vol. 29, № 2 (114). - P. 72-81. - Bibliogr.: p. 79 ISSN 2518-7198.
UDC:
536.24
Subject headings
- Heat transfer. Heat exchange between a solid and a liquid or gas
Annotation
This article discusses the numerical calculation of a helicoidal heat exchanger
Keywords
heat transfer, numerical calculation, helical heat exchanger, hydrodynamics, coolants, heat flow, laminar-turbulent transition, Navier-Stokes equation, flow turbulization, геликоидты жылу алмастырғыш, геликоидный теплообменник
Kazakhstan
0/0 Free
periodical press (Magazines)
DYUSSEBAYEV I. M.
Dyussebayev, I. M. Methodological basis for the application of wind generators in geology [Text] / I. M. Dyussebayev, Zh. Issabekov , A. D. Tulegulov [et al.] // Қазақстан Республикасы Ұлттық ғылым академиясының хабарлары. Геология және техникалық ғылымдар сериясы. - 2022. - № 5 (455). - P. 63-78. - Bibliogr.: p. 77-78 ISSN 2518-170X.
UDC:
55
Subject headings
- Geological sciences
Annotation
The article reveals the methodological foundations for the application of wind turbines in geological research
Keywords
wind turbines, energy supply, geological exploration, technological equipment, rotary mechanism, wind speed, жел генераторлық қондырғылар, геологиялық-барлау жұмыстары, ветрогенераторные установки, геолого-разведочные работы
Kazakhstan
0/0 Free
periodical press (Magazines)
KOKYMBAEVA G. ZH.
Kokymbaeva, G. Zh. Modeling PVT properties of reservoir fluids within the Karaton-Sarkamys block by the example of the prorva group of fields [Text] / G. Zh. Kokymbaeva, R. N. Uteev , A. S. Mardanov [et al.] // Қазақстан Республикасы Ұлттық ғылым академиясының хабарлары. Геология және техникалық ғылымдар сериясы. - 2022. - № 5 (455). - P. 109-127. - Bibliogr.: p. 126-127 ISSN 2518-170X.
UDC:
544.016
Subject headings
- Physico-chemical analysis. Composition-property diagrams
Annotation
To assess the properties of the initial reservoir oil, a mathematical recombination of the composition was carried out using the obtained average value of gas content. Gas and oil compositions were used according to the results of KM Engineering LLP laboratory as the most qualitative and detailed ones
Keywords
reservoir, formation oil properties, PVT, density, viscosity, saturation pressure, кен орны, залежь
Kazakhstan
0/0 Free
periodical press (Magazines)
MUKHARLYAMOV R. G.
Mukharlyamov, R. G. Modeling of dynamics processes and dynamics control [Text] / R. G. Mukharlyamov, Zh. K. Kirgizbaev // Қарағанды университетінің хабаршысы. Математика сериясы. - 2024. - № 2 (114). - P. 165-177. - Bibliogr.: p. 172-174 ISSN 2518-7929.
UDC:
517.9
Subject headings
- Differential equations. Integral equations
Annotation
The conditions of stability of the integralmanifold determined by the constraint equations and stabilization of the constraint in the numerical solutionof the dynamic equations were formulated
Keywords
constraint stabilization, numerical methods, nonholonomic constraints, Helmholtz conditions, байланыстарды тұрақтандыру, Гельмгольц шарттары, стабилизация связей, условия Гельмгольца
Kazakhstan
0/0 Free
SERIKBAYEVA A. M.
METHODS OF PREPARATION AND PHYSICO-CHEMICAL CHARACTERISTICS OF ORGANIC MODIFIED CLAYS WITH GRAFTED ORGANOALOXIDES
periodical press (Magazines)
0/0 Free
AMIRGALIYEV N.
MONITORING OF ACCUMULATION OF POLYCHLORINATED BIPHENYLS IN THE SNOW COVER IN THE ALMATY AGGLOMERATION
periodical press (Magazines)
0/0 Free
AKIMBEK G. A.
METHODOLOGY AND EXPERIMENTAL SETUP FOR THE STUDY OF RELATIVE ABRASIVENESS OF BULK SOLIDS
periodical press (Magazines)
0/0 Free
AMЕRTAYEVA G. A.
MORPHOLOGICAL CHARACTERISTICS AND ANATOMICAL FEATURES OF THE PERENNIAL HERB AJANIA FASTIGIATA (C. WINKL.) POLJAKOV (ASTERACEAE)
periodical press (Magazines)
0/0 Free
periodical press (Magazines)
0/0 Free
periodical press (Magazines)
0/0 Free
JAICHIBEKOV N. ZH.
MATHEMATICAL MODEL AND NUMERICAL CALCULATION OF THE MOVEMENT OF OIL PRODUCTS IN HELICOIDAL HEAT EXCHANGERS
periodical press (Magazines)
0/0 Free
DYUSSEBAYEV I. M.
METHODOLOGICAL BASIS FOR THE APPLICATION OF WIND GENERATORS IN GEOLOGY
periodical press (Magazines)
0/0 Free
KOKYMBAEVA G. ZH.
MODELING PVT PROPERTIES OF RESERVOIR FLUIDS WITHIN THE KARATON-SARKAMYS BLOCK BY THE EXAMPLE OF THE PRORVA GROUP OF FIELDS
periodical press (Magazines)
0/0 Free
periodical press (Magazines)
0/0 Free