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Genre:Естественные науки (natural_sciences)
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321-330 of 361
periodical press (Magazines)
WU C. Y.
Wu, C. Y. Three-Dimensional Fingerprint Spectroscopy Study on the Biopolymer System of Polyphenol Oxidase Binding with Cumalic Acid [Text] / C. Y. Wu, W. О. Ling , Y. C. Yao [et al.] // Bulletin of the Karaganda University. Chemistry series. - 2022. - № 3. - Р. 168-179. - Bibliogr.: p. 176-177 ISSN 2518-718Х.
UDC:
544.4
Subject headings
- Chemical kinetics. Catalysis
Annotation
This study examines the interaction of coumaric acid with polyphenol oxidase, an enzyme that plays a key role in the aging and darkening of plant cells
Keywords
biopolymer, Cu-containing enzyme, coumaric acid, polyphenol oxidase, antioxidant, antioxidant, spectroscopy, tyrosinase, molecular modeling
Kazakhstan
0/0 Free
periodical press (Magazines)
ОMAROVA G. Т.
Оmarova, G. Т. To the inverse problem of comet dynamics [Text] / G. Т. Оmarova, Zh. Т. Оmarova // Қазақстан Республикасы Ұлттық ғылым академиясының баяндамалары. - 2022. - № 1. - P. 124-129. - Bibliogr.: p. 128-129 ISSN 2224-5227.
UDC:
521.1
Subject headings
- Celestial mechanics. General principles of dynamic astronomy
Annotation
In this work, a further consideration of the inverse problem of Celestial Mechanics is developed - the problem of reconstruction of a non-stationary space symmetrical regular planar potential of the gravitating system generating a family of evolving types of orbits
Keywords
celestial mechanics, inverse problem, comet dynamic, аспан механикасы, кометалардың динамикасы, небесная механика, динамика комет
Kazakhstan
0/0 Free
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, топырақтағы ауыл металдар, топырақтың ластануы, тяжелые металлы, загрязнители почвы, environment
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, ionic monomers, cationic nanogel, poly-N-isopropylacrylamide, volume phase transition temperature, amphoteric 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
mRNA, binding site, trinucleotide repeat expansion, тринуклеотидті қайталанатын экспансия, miRNA, 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, identification signs, BRIEF descriptors, octave, биометрия, fingerprints, biometric personality identification, Hessian matrix, FPM10A module, Laplace pyramid, electronic fingerprint, электронная дактилокарта, biometric scanner, электронды саусақ ізі
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
WU C. Y.
THREE-DIMENSIONAL FINGERPRINT SPECTROSCOPY STUDY ON THE BIOPOLYMER SYSTEM OF POLYPHENOL OXIDASE BINDING WITH CUMALIC ACID
periodical press (Magazines)
0/0 Free
periodical press (Magazines)
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