Электронный каталог
Язык издания:Английский
Каталог:Статьи
Результат поиска:
1521-1530 из 2187
периодические издания(Журналы)
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.
УДК:
544.4
Предметная рубрика
- Chemical kinetics. Catalysis
Ключевые слова
Boltzmann distribution, randomized particles, probability, virtuality, cluster, melt, viscosity, alkali metals
Казахстаника
0/0 Свободно
периодические издания(Журналы)
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.
УДК:
530.182.1
Предметная рубрика
- Solitons
Аннотация
This paper illustrates the application of the Hirota’s bilinear method for construction of solitons for an integrable nonlinear equation
Ключевые слова
Hirota method, bilinear form, soliton solution, Kawahara equation, partial differential equation, Lie point symmetries, conservation laws, Хирота әдісі, Кавахара теңдеуі, солитондық шешім
Казахстаника
0/0 Свободно
периодические издания(Журналы)
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.
УДК:
532.542:665.71
Предметная рубрика
- The movement of liquids in pipelines. Petrochemical products
Аннотация
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
Ключевые слова
waxy oil, Newtonian fluid, viscoplastic state, RANS turbulence model, парафинді мұнай, Ньютон сұйықтығы, парафинистая нефть, ньютоновская жидкость
Казахстаника
0/0 Свободно
периодические издания(Журналы)
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.
УДК:
504.5:631.4
Предметная рубрика
- Soil pollution. Soil research
Аннотация
The article considered: the role of groundwater in the radionuclide contamination in oil fields
Ключевые слова
environment, radionuclides, ionizing radiation, oil-gas, radionuclide pollution, радионуклидтер, радиоактивті ластану, радионуклиды, radioactive contamination
Казахстаника
0/0 Свободно
периодические издания(Журналы)
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.
УДК:
543.55
Предметная рубрика
- Electroanalytical methods of analysis. Electrochemical methods of analysis
Аннотация
The electrochemical behavior of methionine at an electrode modified with vitamin B12 and multi-walled carbon nanotubes has been studied in this work
Ключевые слова
methionine, modified electrode, vitamin B12, electrooxidation, cobalamin, electron, proton, multi-walled carbon nanotubes
Казахстаника
0/0 Свободно
периодические издания(Журналы)
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.
УДК:
543.4
Предметная рубрика
- Spectral methods of analysis. Optical analysis methods
Аннотация
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)
Ключевые слова
chemometrics, cluster analysis, low-melting lead enamels, probabilistic deterministic design of experiment, archeology, settlement of Jochi Khan
Казахстаника
0/0 Свободно
периодические издания(Журналы)
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.
УДК:
547
Предметная рубрика
- Organic chemistry
Аннотация
In this study, a modified cross-linked composite based on humic acids, pre-tuned to sorbed copper ion, was obtained
Ключевые слова
natural polymer, multi-walled carbon nanotubes, composite, template, tuning, sorption, functionalization, ultrasound
Казахстаника
0/0 Свободно
периодические издания(Журналы)
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.
УДК:
542.9
Предметная рубрика
- Chemical reactions. Selected chemical methods
Аннотация
In this work, ternary composites of NiZn ferrite/carbonyl iron/carbon black (Ni0.5Zn0.5Fe2O4/CI/CB) were prepared via two stages
Ключевые слова
NiZn ferrite, сarbonyl iron, сarbon black, reflection loss, absorption bandwidth, matching frequency, paraffin wax matrix, surface density
Казахстаника
0/0 Свободно
периодические издания(Журналы)
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.
УДК:
665.662
Предметная рубрика
- Physical cleaning methods
Аннотация
The results of adsorption purification of used industrial oil in the presence of natural aluminosilicates, bentonite and mordenite, are discussed
Ключевые слова
adsorption purification, waste industrial oil, bentonite, mordenite, degree of purification, IR- spectrum, structural group composition
Казахстаника
0/0 Свободно
периодические издания(Журналы)
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.
УДК:
547
Предметная рубрика
- Organic chemistry
Аннотация
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)
Ключевые слова
ionic flotation, precipitate flotation, sulfonylhydrazines, non-ferrous metals, physico-chemical properties, surface-active substances
Казахстаника
0/0 Свободно
MAKASHEVA A. M.
DIRECT CORRELATION BETWEEN FLUID CLUSTER STRUCTURE AND ITS VISCOSITY
периодические издания(Журналы)
0/0 Свободно
ZHUMAGELDINA A. B.
CONSTRUCTION OF SOLITONS FOR INTEGRABLE NONLINEAR KAWAHARA EQUATION
периодические издания(Журналы)
0/0 Свободно
периодические издания(Журналы)
0/0 Свободно
ALIYEV CH. S.
ENVIRONMENTAL ASSESSMENT OF SOIL CONTAMINATION OF THE OIL AND GAS ZONE INDUSTRY ZONE
периодические издания(Журналы)
0/0 Свободно
SHELKOVNIKOV V. V.
STUDY OF THE METHIONINE ELECTROOXIDATION AT AN ELECTRODE MODIFIED WITH VITAMIN B12 AND MULTI-WALLED CARBON NANOTUBES
периодические издания(Журналы)
0/0 Свободно
FOMIN V. N.
METHOD FOR QUALITATIVE AND QUANTITATIVE ANALYSIS OF ANCIENT LEAD ENAMEL USING LASER INDUCTED BREAKDOWN SPECTROSCOPY
периодические издания(Журналы)
0/0 Свободно
MULDAKHMETOV Z. M.
SYNTHESIS OF A COMPOSITE BASED ON HUMIC ACID TUNED TO SORBED COPPER ION
периодические издания(Журналы)
0/0 Свободно
HOUBI A.
SYNTHESIS AND MICROWAVE ABSORPTION PROPERTIES OF (NI0.5ZN0.5FE2O4/CI/CB) TERNARY COMPOSITES
периодические издания(Журналы)
0/0 Свободно
GUSEINOVA E. A.
ADSORPTION PURIFICATION OF USED INDUSTRIAL OIL USING NATURAL ALUMINOSILICATES
периодические издания(Журналы)
0/0 Свободно
CHEKANOVA L. G.
THE SELECTION OF REAGENTS FOR IONIC FLOTATION OF NON-FERROUS METALS IN THE SERIES OF N-ACYL-N'-MEZYLHYDRAZINES
периодические издания(Журналы)
0/0 Свободно