Electronic catalog
language:English
catalogue:Articles
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1521-1530 of 2260
periodical press (Magazines)
MAKASHEVA A. M.
Makasheva, A. M. Direct correlation between fluid cluster structure and its viscosity [Text] / A. M. Makasheva, V. P. Malyshev , L. A. Bekbayeva // Қарағанды университетінің хабаршысы. Химия сериясы. - 2022. - № 4. - Р. 65-75. - Bibliogr.: p. 72-73 ISSN 2518-718Х.
UDC:
544.4
Subject headings
- Chemical kinetics. Catalysis
Keywords
Boltzmann distribution, randomized particles, probability, virtuality, melt, viscosity, cluster, alkali metals
Kazakhstan
0/0 Free
periodical press (Magazines)
ZHUMAGELDINA A. B.
Zhumageldina, A. B. Construction of solitons for integrable nonlinear Kawahara equation [Text] / A. B. Zhumageldina, N. S. Serikbayev , D. E. Baltabayeva // Қазақстан Республикасы Ұлттық ғылым академиясының баяндамалары. - 2022. - № 3. - P. 103-118. - Bibliogr.: p. 117-118 ISSN 2224-5227.
UDC:
530.182.1
Subject headings
- Solitons
Annotation
This paper illustrates the application of the Hirota’s bilinear method for construction of solitons for an integrable nonlinear equation
Keywords
bilinear form, soliton solution, Kawahara equation, partial differential equation, Lie point symmetries, conservation laws, Хирота әдісі, солитондық шешім, Hirota method, Кавахара теңдеуі
Kazakhstan
0/0 Free
periodical press (Magazines)
ZHAPBASBAYEV U.
Zhapbasbayev, U. Transition of a Newtonian fluid to a viscoplastic state [Text] / U. Zhapbasbayev, M. Pakhomov , D. Bossinov // Қазақстан Республикасы Ұлттық ғылым академиясының баяндамалары. - 2022. - № 3. - P. 92-102. - Bibliogr.: p. 102 ISSN 2224-5227.
UDC:
532.542:665.71
Subject headings
- The movement of liquids in pipelines. Petrochemical products
Annotation
In the zone of yield stress, oil does not flow, which causes an increase in flow velocity in the central part of the pipeline. Such a complex structure of a non-isothermal waxy oil flow is investigated using the RANS turbulence model
Keywords
waxy oil, Newtonian fluid, viscoplastic state, RANS turbulence model, парафинді мұнай, Ньютон сұйықтығы, парафинистая нефть, ньютоновская жидкость
Kazakhstan
0/0 Free
periodical press (Magazines)
ALIYEV CH. S.
Aliyev, Ch. S. Environmental assessment of soil contamination of the oil and gas zone industry zone [Text] / Ch. S. Aliyev, L. A. Kazimova // Қазақстан Республикасы Ұлттық ғылым академиясының баяндамалары. - 2022. - № 3. - P. 78-91. - Bibliogr.: p. 90-91 ISSN 2224-5227.
UDC:
504.5:631.4
Subject headings
- Soil pollution. Soil research
Annotation
The article considered: the role of groundwater in the radionuclide contamination in oil fields
Keywords
environment, radionuclides, ionizing radiation, oil-gas, radionuclide pollution, радионуклидтер, радиоактивті ластану, радионуклиды, radioactive contamination
Kazakhstan
0/0 Free
periodical press (Magazines)
SHELKOVNIKOV V. V.
Shelkovnikov, V. V. Study of the Methionine Electrooxidation at an Electrode Modified with Vitamin B12 and Multi-Walled Carbon Nanotubes [Text] / V. V. Shelkovnikov, A. M. Altyev , M. S. Fryanova // Қарағанды университетінің хабаршысы. Химия сериясы. - 2022. - № 4. - Р. 99-106. - Bibliogr.: p. 104-105 ISSN 2518-718Х.
UDC:
543.55
Subject headings
- Electroanalytical methods of analysis. Electrochemical methods of analysis
Annotation
The electrochemical behavior of methionine at an electrode modified with vitamin B12 and multi-walled carbon nanotubes has been studied in this work
Keywords
methionine, modified electrode, vitamin B12, electrooxidation, cobalamin, electron, multi-walled carbon nanotubes, proton
Kazakhstan
0/0 Free
periodical press (Magazines)
FOMIN V. N.
Fomin, V. N. Method for Qualitative and Quantitative Analysis of Ancient Lead Enamel Using Laser Inducted Breakdown Spectroscopy [Text] / V. N. Fomin, E. R. Usmanova , E. F. Gyul [et al.] // Қарағанды университетінің хабаршысы. Химия сериясы. - 2022. - № 4. - Р. 107-117. - Bibliogr.: p. 114-115 ISSN 2518-718Х.
UDC:
543.4
Subject headings
- Spectral methods of analysis. Optical analysis methods
Annotation
The article discusses the method of laser spark emission spectroscopy, which is used to analyze archaeological enamel samples from the site of Juchi Khan (XIV century)
Keywords
chemometrics, cluster analysis, low-melting lead enamels, probabilistic deterministic design of experiment, archeology, settlement of Jochi Khan
Kazakhstan
0/0 Free
periodical press (Magazines)
MULDAKHMETOV Z. M.
Muldakhmetov, Z. M. Synthesis of a Composite Based on Humic Acid Tuned to Sorbed Copper Ion [Text] / Z. M. Muldakhmetov, A. M. Gazaliev , A. Kh. Zhakina [et al.] // Қарағанды университетінің хабаршысы. Химия сериясы. - 2022. - № 4. - Р. 182-187. - Bibliogr.: p. 186-187 ISSN 2518-718Х.
UDC:
547
Subject headings
- Organic chemistry
Annotation
In this study, a modified cross-linked composite based on humic acids, pre-tuned to sorbed copper ion, was obtained
Keywords
natural polymer, multi-walled carbon nanotubes, composite, template, tuning, sorption, functionalization, ultrasound
Kazakhstan
0/0 Free
periodical press (Magazines)
HOUBI A.
Houbi, A. Synthesis and Microwave Absorption Properties of (Ni0.5Zn0.5Fe2O4/CI/CB) Ternary Composites [Text] / A. Houbi, A. A. Zharmenov; Y. Atassi [et al.] // Қарағанды университетінің хабаршысы. Химия сериясы. - 2022. - № 4. - Р. 142-151. - Bibliogr.: p. 149-150 ISSN 2518-718Х.
UDC:
542.9
Subject headings
- Chemical reactions. Selected chemical methods
Annotation
In this work, ternary composites of NiZn ferrite/carbonyl iron/carbon black (Ni0.5Zn0.5Fe2O4/CI/CB) were prepared via two stages
Keywords
NiZn ferrite, сarbonyl iron, сarbon black, reflection loss, absorption bandwidth, matching frequency, paraffin wax matrix, surface density
Kazakhstan
0/0 Free
periodical press (Magazines)
GUSEINOVA E. A.
Guseinova, E. A. Adsorption Purification of Used Industrial Oil Using Natural Aluminosilicates [Text] / E. A. Guseinova // Қарағанды университетінің хабаршысы. Химия сериясы. - 2022. - № 4. - Р. 162-170. - Bibliogr.: p. 169-170 ISSN 2518-718Х.
UDC:
665.662
Subject headings
- Physical cleaning methods
Annotation
The results of adsorption purification of used industrial oil in the presence of natural aluminosilicates, bentonite and mordenite, are discussed
Keywords
IR- spectrum, adsorption purification, waste industrial oil, bentonite, mordenite, degree of purification, structural group composition
Kazakhstan
0/0 Free
periodical press (Magazines)
CHEKANOVA L. G.
Chekanova, L. G. The Selection of Reagents for Ionic Flotation of Non-Ferrous Metals in the Series of N-Acyl-N'-Mezylhydrazines [Text] / L. G. Chekanova, V. N. Vaulina , Yu. B. Elchischeva [et al.] // Қарағанды университетінің хабаршысы. Химия сериясы. - 2022. - № 4. - Р. 171-181. - Bibliogr.: p. 180-181 ISSN 2518-718Х.
UDC:
547
Subject headings
- Organic chemistry
Annotation
A series of new ligands — N-acyl-N'-mesylhydrazines — of the general formula RC(O)NHNHSO2CH3 has been obtained and considered as reagents for ionic flotation of non-ferrous metals (M(II)
Keywords
ionic flotation, precipitate flotation, sulfonylhydrazines, non-ferrous metals, physico-chemical properties, surface-active substances
Kazakhstan
0/0 Free
MAKASHEVA A. M.
DIRECT CORRELATION BETWEEN FLUID CLUSTER STRUCTURE AND ITS VISCOSITY
periodical press (Magazines)
0/0 Free
ZHUMAGELDINA A. B.
CONSTRUCTION OF SOLITONS FOR INTEGRABLE NONLINEAR KAWAHARA EQUATION
periodical press (Magazines)
0/0 Free
periodical press (Magazines)
0/0 Free
ALIYEV CH. S.
ENVIRONMENTAL ASSESSMENT OF SOIL CONTAMINATION OF THE OIL AND GAS ZONE INDUSTRY ZONE
periodical press (Magazines)
0/0 Free
SHELKOVNIKOV V. V.
STUDY OF THE METHIONINE ELECTROOXIDATION AT AN ELECTRODE MODIFIED WITH VITAMIN B12 AND MULTI-WALLED CARBON NANOTUBES
periodical press (Magazines)
0/0 Free
FOMIN V. N.
METHOD FOR QUALITATIVE AND QUANTITATIVE ANALYSIS OF ANCIENT LEAD ENAMEL USING LASER INDUCTED BREAKDOWN SPECTROSCOPY
periodical press (Magazines)
0/0 Free
MULDAKHMETOV Z. M.
SYNTHESIS OF A COMPOSITE BASED ON HUMIC ACID TUNED TO SORBED COPPER ION
periodical press (Magazines)
0/0 Free
HOUBI A.
SYNTHESIS AND MICROWAVE ABSORPTION PROPERTIES OF (NI0.5ZN0.5FE2O4/CI/CB) TERNARY COMPOSITES
periodical press (Magazines)
0/0 Free
GUSEINOVA E. A.
ADSORPTION PURIFICATION OF USED INDUSTRIAL OIL USING NATURAL ALUMINOSILICATES
periodical press (Magazines)
0/0 Free
CHEKANOVA L. G.
THE SELECTION OF REAGENTS FOR IONIC FLOTATION OF NON-FERROUS METALS IN THE SERIES OF N-ACYL-N'-MEZYLHYDRAZINES
periodical press (Magazines)
0/0 Free