Электронный каталог
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Язык издания:Английский
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961-970 из 1180
периодические издания(Журналы)
BURKEYEV M. ZH.
Burkeyev, M. Zh. Synthesis and Investigation of the Properties of Polymer-immobilized Silver- and Gold Nanoparticles [Text] / M. Zh. Burkeyev, S. R. Shibayeva , T. O. Khamitova [et al.] // Bulletin of the Karaganda University. Chemistry series . - 2022. - № 3. - Р. 198-207. - Bibliogr.: р. 206 ISSN 2518-718Х.
УДК:
54.04
Предметная рубрика
- Chemical properties (and constants)
Аннотация
Metal–polymer composites based on copolymers of polypropylene glycol maleate phthalate with acrylic acid and metallic gold and silver were synthesized for the first time
Ключевые слова
nanocomposites, silver, gold, copolymer, polypropylene glycol maleate phthalate, acrylic acid, metal–polymer complex, antimicrobial activity
Казахстаника
0/0 Свободно
периодические издания(Журналы)
MAMYTBEKOV G. K.
Mamytbekov, G. K. Synthesis, Structure and Properties of Hybrid Composite Bentonite-Based Materials [Text] / G. K. Mamytbekov, Zh. I. Beksultanov , V. I. Bannykh [et al.] // Bulletin of the Karaganda University. Chemistry series . - 2022. - № 3. - С. 267-282. - Bibliogr.: р. 277-279 ISSN 2518-718Х.
Аннотация
A systematic study of the synthesis of hybrid composite materials based on synthetic (poly-Nvinylpyrrolidone) and natural (agar-agar) macromolecules in the presence of plasticizers (PEG-400, glycerin) and mineral filler bentonite has been performed by the method of electron irradiation
Ключевые слова
composition material , polymer-inorganic compositions , electron irradiation, bentonite, synthetic polymers, natural polymers
Казахстаника
0/0 Свободно
периодические издания(Журналы)
ANDEKINA R. E.
Andekina, R. E. Small and medium-sized entrepreneurship of Kazakhstan in times of crisis: current condition, problems, recommendations [Text] / R. E. Andekina, R. U. Rakhmetova // Л.Н. Гумилев атындағы Еуразия ұлттық университетінің хабаршысы. Экономикалық сериясы. - 2022. - № 4. - Р. 53-64. - Bibliogr.: p. 62 ISSN 2789-4320.
УДК:
334.722
Предметная рубрика
- Private enterprises
Аннотация
The article examines the current state of entrepreneurship, its main indicators and external factors, and presents recommendations for the further development of entrepreneurship in various sectors of the economy of Kazakhstan
Ключевые слова
small enterprise, medium-sized enterprise, entrepreneurship, individual entrepreneurs, business
Казахстаника
0/0 Свободно
периодические издания(Журналы)
MUSTAFAYEV ZH. S.
Mustafayev, Zh. S. Spatial-time change in the climatic parameters of the drainage of the river basin Ili [Text] / Zh. S. Mustafayev, L. M. Ryskulbekova // Қазақстан Республикасы Ұлттық ғылым академиясының баяндамалары. - 2022. - № 1. - P. 102-109. - Bibliogr.: p. 108-109 ISSN 2224-5227.
УДК:
551.583
Предметная рубрика
- Climate change
Аннотация
In order to analyze climate change on a spatio-temporal scale, proceeding in various physical and geographical (geomorphological) conditions of the catchment area of the Ili River basin, we used the average annual air temperatures and annual precipitation for the period 1948-2020 of the meteorological stations Narynkol, Inin, Zharkent, Aidarly, Bakanas and Kuygan
Ключевые слова
climate, catchment of river basins, annual precipitation, linear trend, климаттың өзгеруі, жылдық жауын-шашын, изменение климата, годовые атмосферные осадки
Казахстаника
0/0 Свободно
периодические издания(Журналы)
ZHUMAGELDINA A.
Zhumageldina, A. Shifted nonlocal nonlinear schrodinger and maxwell-bloch equation: darboux transformation and solution [Text] / A. Zhumageldina, K. Yesmakhanova // Қазақстан Республикасы Ұлттық ғылым академиясының баяндамалары. - 2022. - № 2. - P. 108-121. - Bibliogr.: p. 120-121 ISSN 2224-5227.
УДК:
530.182
Предметная рубрика
- Nonlinear phenomena
Аннотация
In this work, motivated by the ideas of Musslimani and Ablowitz, shifted nonlocal nonlinear Schrodinger and Maxwell-Bloch equations (NLS-MB) were defined
Ключевые слова
shifted nonlocality, nonlinear Schrodinger and Maxwell-Bloch equation, Darboux transformation, solution, Дарбу түрлендіруі, Шредингер мен Максвелл-Блохтың сызықты емес теңдеуі, преобразование Дарбу, уравнения Шредингера и Максвелла-Блоха
Казахстаника
0/0 Свободно
периодические издания(Журналы)
TURGUNALIEVA D. M.
Turgunalieva, D. M. Synthesis and antibacterial activity of hydrazones of isonicotinic and salicylic acids based on acetyl derivatives of coumarin and benzo [g] [1,3,5] oxadiazocine [Text] / D. M. Turgunalieva, D. S. Dilbaryan , A. S. Vasilchenkо [et al.] // Қарағанды университетінің хабаршысы. Химия сериясы. - 2022. - № 4. - Р. 25-34. - Bibliogr.: p. 33-34 ISSN 2518-718Х.
УДК:
544.32
Предметная рубрика
- Thermodynamic functions of chemical processes
Ключевые слова
hydrazides, isoniazid, coumarins, antimicrobial activity, salicylic acid hydrazide, hydrazones
Казахстаника
0/0 Свободно
периодические издания(Журналы)
PANSHINA S. YU.
Panshina, S. Yu. Synthesis of cucurbit [6] uril using 1-hydroxyethylidene-1,1-diphosphonic acid as a “Green Catalyst” [Text] / S. Yu. Panshina, A. A. Bakibaev , A. N. Guslyakov [et al.] // Қарағанды университетінің хабаршысы. Химия сериясы. - 2022. - № 4. - Р. 5-13. - Bibliogr.: p. 10-11 ISSN 2518-718Х.
УДК:
544.4
Предметная рубрика
- Chemical kinetics. Catalysis
Аннотация
In this work, 1-hydroxyethylidene-1,1-diphosphonic acid (HEDP) was used for the first time as a catalyst for “Green chemistry” in the synthesis of cucurbit[6]uril in an aqueous medium
Ключевые слова
oligomer, cucurbit[6]uril, 1-hydroxyethylidene-1,1-diphosphonic acid, glycoluril, paraformaldehyde
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, multi-walled carbon nanotubes, proton
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
BURKEYEV M. ZH.
SYNTHESIS AND INVESTIGATION OF THE PROPERTIES OF POLYMER-IMMOBILIZED SILVER- AND GOLD NANOPARTICLES
периодические издания(Журналы)
0/0 Свободно
MAMYTBEKOV G. K.
SYNTHESIS, STRUCTURE AND PROPERTIES OF HYBRID COMPOSITE BENTONITE-BASED MATERIALS
периодические издания(Журналы)
0/0 Свободно
ANDEKINA R. E.
SMALL AND MEDIUM-SIZED ENTREPRENEURSHIP OF KAZAKHSTAN IN TIMES OF CRISIS: CURRENT CONDITION, PROBLEMS, RECOMMENDATIONS
периодические издания(Журналы)
0/0 Свободно
MUSTAFAYEV ZH. S.
SPATIAL-TIME CHANGE IN THE CLIMATIC PARAMETERS OF THE DRAINAGE OF THE RIVER BASIN ILI
периодические издания(Журналы)
0/0 Свободно
ZHUMAGELDINA A.
SHIFTED NONLOCAL NONLINEAR SCHRODINGER AND MAXWELL-BLOCH EQUATION: DARBOUX TRANSFORMATION AND SOLUTION
периодические издания(Журналы)
0/0 Свободно
TURGUNALIEVA D. M.
SYNTHESIS AND ANTIBACTERIAL ACTIVITY OF HYDRAZONES OF ISONICOTINIC AND SALICYLIC ACIDS BASED ON ACETYL DERIVATIVES OF COUMARIN AND BENZO [G] [1,3,5] OXADIAZOCINE
периодические издания(Журналы)
0/0 Свободно
PANSHINA S. YU.
SYNTHESIS OF CUCURBIT [6] URIL USING 1-HYDROXYETHYLIDENE-1,1-DIPHOSPHONIC ACID AS A “GREEN CATALYST”
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
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