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Genre:Естественные науки (natural_sciences)
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321-330 of 359
periodical press (Magazines)
BITMANOV YE.
Bitmanov, Ye. The content of heavy metals in the soil of central Kazakhstan [Text] / Ye. Bitmanov, A. Abzhalelov , L. Boluspayeva // Қазақстан Республикасы Ұлттық ғылым академиясының баяндамалары. - 2022. - № 3. - P. 5-14. - Bibliogr.: p. 13-14 ISSN 2224-5227.
UDC:
504.53:631.4
Subject headings
- Soil pollution. Soil research
Annotation
The article provides comparative data on the content of such heavy metals as chromium, zinc and lead for 2019 and 2020 in several cities of the Akmola region
Keywords
heavy metals, pollutants, ecology, environment, топырақтағы ауыл металдар, топырақтың ластануы, тяжелые металлы, загрязнители почвы
Kazakhstan
0/0 Free
periodical press (Magazines)
AYAZBAYEVA A. YE.
Ayazbayeva, A. Ye. Temperature and salt responsivity of anionic, cationic and amphoteric nanogels based on n-isopropylacrylamide, 2-acrylamido-2-methyl-1-propanesulfonic acid sodium salt and (3-acrylamidopropyl) trimethylammonium chloride [Text] / A. Ye. Ayazbayeva, A. V. Shakhvorostov , S. E. Kudaibergenov // Қарағанды университетінің хабаршысы. Химия сериясы. - 2022. - № 4. - Р. 14-24. - Bibliogr.: p. 22-23 ISSN 2518-718Х.
UDC:
541.64
Subject headings
- Chemistry of macromolecules. Products of polymerization, polycondensation and polyaddition reactions
Annotation
Three different nanogels possessing anionic, cationic and amphoteric character were synthesized via conventional redox initiated free radical copolymerization of N-isopropylacrylamide, 2-acrylamido-2-methyl-1-propanesulfonic acid sodium salt and (3-acrylamidopropyl) trimethylammonium chloride
Keywords
polyampholyte nanogels, poly-N-isopropylacrylamide, ionic monomers, volume phase transition temperature, amphoteric nanogel, cationic nanogel
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)
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
periodical press (Magazines)
BELKOZHAYEV A. M.
Belkozhayev, A. M. The interaction of miR-4258, miR-3960, miR-211-3p AND miR-3155b with mRNAs genes of non-polyglutamine trinucleotide disorders [Text] / A. M. Belkozhayev, R. Ye. Niyazova // Қазақстан Республикасы Ұлттық ғылым академиясының хабарлары. Биология және медицина сериясы. - 2020. - № 1 (337). - P. 25-32. - Bibliogr.: p. 32 ISSN 2224-5308.
UDC:
577.21
Subject headings
- The molecular biology of the gene. Molecular genetics
Annotation
Trinucleotide repeat expansion disorders constitute a group of dominantly inherited neurological diseases that are incurable and ultimately fatal. In the present work, miRNA binding sites were predicted by the MirTarget program
Keywords
miRNA, mRNA, binding site, trinucleotide repeat expansion, тринуклеотидті қайталанатын экспансия, тринуклеотидтік бұзылысты гендер, тринуклеотидные повторы
Kazakhstan
0/0 Free
periodical press (Magazines)
MAZAKOV T. ZH.
Mazakov, T. Zh. The image processing algorithms for biometric identification by fingerprints [Text] / T. Zh. Mazakov, Sh. A. Jomartova , T. S. Shormanov [et al.] // Қазақстан Республикасы Ұлттық ғылым академиясының хабарлары. Геология және техникалық ғылымдар сериясы. - 2016. - I бөлім. - № 2 (111). - P. 14-22. - Bibliogr.: p. 21-22 ISSN 2224-5278.
UDC:
51-7:004.6
Subject headings
- The application of mathematical research methods in other fields of knowledge. Data
Annotation
The article discusses image processing algorithms for biometric fingerprint identification. This study used a database of photographs obtained from open sources – the Fingerprint Verification Competition 2004 (FVC2004)
Keywords
biometrics, fingerprints, identification signs, biometric personality identification, BRIEF descriptors, Hessian matrix, biometric scanner, FPM10A module, Laplace pyramid, octave, electronic fingerprint, биометрия, электронды саусақ ізі, электронная дактилокарта
Kazakhstan
0/0 Free
periodical press (Magazines)
ONORKULOV K.
Onorkulov, K. Technology for obtaining anomalous photovoltaic effect films from cadmium halides and on the nature of Microphotocells [Text] / K. Onorkulov, A. Zokirov // Л.Н. Гумилев атындағы Еуразия ұлттық университетінің хабаршысы. Физика. Астрономия сериясы. - 2023. - № 2. - Р. 16-23. - Bibliogr.: р. 20-21 ISSN 2616-6836.
UDC:
53
Subject headings
- Рhysics
Annotation
This article discusses the technology of obtaining anomalous photovoltaic (APV) effect films from cadmium halides
Keywords
anomalous photovoltaic effect, cadmium halides, film deposition, stoichiometry, dispersion evaporation, еxplosive evaporation, acoustic faraday effect, selenium films
Kazakhstan
0/0 Free
periodical press (Magazines)
MEDVEDEVA N. A.
Medvedeva, N. A. The Effect of Aging on the Microstructure of Alloys (ТiСr1.8)100–xVx after Electrolytic Hydrogen Charging [Text] / N. A. Medvedeva, A. A. Mironova , N. E. Skryabina [et al.] // Қарағанды университетінің хабаршысы. Химия сериясы. - 2022. - № 2. - Р. 95-102. - Bibliogr.: p. 99 ISSN 2518-718Х.
UDC:
544.2
Subject headings
- Physical chemistry of solids, liquids and gases
Annotation
The microstructure transformation of ternary Ti-Cr-V alloys after introduction of hydrogen has been analyzed for a long time. Assessment of the impact of vanadium concentration and ratio of Ti and V concentrations on composition stability has been carried out
Keywords
alloys, electrochemical hydrogen saturation, hydrogen, self-diffusion, microstructure of alloys
Kazakhstan
0/0 Free
periodical press (Magazines)
RYABYKH A. V.
Ryabykh, A. V. The Role of Zinc Ion in the Active Site of Copper-Zinc Superoxide Dismutase [Text] / A. V. Ryabykh, O. A. Maslova , S. A. Beznosyuk [et al.] // Қарағанды университетінің хабаршысы. Химия сериясы. - 2022. - № 2. - Р. 77-87. - Bibliogr.: p. 85 ISSN 2518-718Х.
UDC:
544.18
Subject headings
- Quantum chemistry
Annotation
The interaction of the superoxide radical ion O2– with the active center of Cu, Zn superoxide dismutase was studied obtained by computer simulation
Keywords
Zn-superoxide dismutase, superoxide radical ion, reactive oxygen species, antioxidants
Kazakhstan
0/0 Free
periodical press (Magazines)
SHLYAPOV R. M.
Shlyapov, R. M. Thermodynamics of chalcocite dissolving in solutions of flotation reagents [Text] / R. M. Shlyapov, Sh. K. Amerkhanova , А. S. Uali [et al.] // Қарағанды университетінің хабаршысы. Химия сериясы. - 2022. - № 1. - Р. 122-130. - Bibliogr.: p. 128-129 ISSN 2518-718Х.
UDC:
543.42
Subject headings
- Spectral analysis
Annotation
This work describes the formation of the ionic composition of the sorption layer during the concentration ofcopper-lead and pyrite-copper-zinc ore
Keywords
flotation, hydrophobicity, sorption layer of collector, flotation reagents, sulfide minerals
Kazakhstan
0/0 Free
periodical press (Magazines)
0/0 Free
AYAZBAYEVA A. YE.
TEMPERATURE AND SALT RESPONSIVITY OF ANIONIC, CATIONIC AND AMPHOTERIC NANOGELS BASED ON N-ISOPROPYLACRYLAMIDE, 2-ACRYLAMIDO-2-METHYL-1-PROPANESULFONIC ACID SODIUM SALT AND (3-ACRYLAMIDOPROPYL) TRIMETHYLAMMONIUM CHLORIDE
periodical press (Magazines)
0/0 Free
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
BELKOZHAYEV A. M.
THE INTERACTION OF MIR-4258, MIR-3960, MIR-211-3P AND MIR-3155B WITH MRNAS GENES OF NON-POLYGLUTAMINE TRINUCLEOTIDE DISORDERS
periodical press (Magazines)
0/0 Free
MAZAKOV T. ZH.
THE IMAGE PROCESSING ALGORITHMS FOR BIOMETRIC IDENTIFICATION BY FINGERPRINTS
periodical press (Magazines)
0/0 Free
ONORKULOV K.
TECHNOLOGY FOR OBTAINING ANOMALOUS PHOTOVOLTAIC EFFECT FILMS FROM CADMIUM HALIDES AND ON THE NATURE OF MICROPHOTOCELLS
periodical press (Magazines)
0/0 Free
MEDVEDEVA N. A.
THE EFFECT OF AGING ON THE MICROSTRUCTURE OF ALLOYS (ТIСR1.8)100–XVX AFTER ELECTROLYTIC HYDROGEN CHARGING
periodical press (Magazines)
0/0 Free
RYABYKH A. V.
THE ROLE OF ZINC ION IN THE ACTIVE SITE OF COPPER-ZINC SUPEROXIDE DISMUTASE
periodical press (Magazines)
0/0 Free
SHLYAPOV R. M.
THERMODYNAMICS OF CHALCOCITE DISSOLVING IN SOLUTIONS OF FLOTATION REAGENTS
periodical press (Magazines)
0/0 Free