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Genre:Естественные науки (natural_sciences)
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161-170 of 181
periodical press (Magazines)
ZHURINOV M. ZH.
Zhurinov, M. Zh. Electrochemical oxidation of phenol on lumpy electrodes at a surge current polarization [Text] / M. Zh. Zhurinov, A. B. Bayeshov , N. S. Ivanov [et al.] // Қазақстан Республикасы Ұлттық ғылым академиясының хабарлары. Геология және техникалық ғылымдар сериясы. - 2017. - № 6 (426). - P. 207-216. - Bibliogr.: p. 205-206 ISSN 2224-5278.
UDC:
544.6
Subject headings
- Electrochemistry
Annotation
Phenol which one of the most abundant pollutants in industrial wastewater was investigated for purification
Keywords
phenol, lumpy electrodes, stationary mode, anode, electrochemical method, фенол, электрохимическое окисление, electrochemical oxidation, электрохимиялық тотығу
Kazakhstan
0/0 Free
periodical press (Magazines)
KUTLAY H.
Kutlay, H. Existence of extremal solutions for a class of fractional integro-differential equations [Text] / H. Kutlay, A. Yakar // Қарағанды университетінің хабаршысы. Математика сериясы. - 2024. - № 3 (115). - P. 112-125. - Bibliogr.: p. 124-125 ISSN 2518-7929.
UDC:
517.9
Subject headings
- Differential equations
Annotation
In the study, the existence of solutions of a class of fractional integro-differential equations with boundary conditions was considered
Keywords
Caputo derivative, extremal solutions, integro-differential equation, Riemann-Liouville integral, monotone iterative technique, upper and lower solutions
Kazakhstan
0/0 Free
periodical press (Magazines)
BUKTUKOV N. S.
Buktukov, N. S. Efficiency of new generation solar photoelectric batteries [Text] / N. S. Buktukov, M. Aitkulov // Қазақстан Республикасы Ұлттық ғылым академиясының баяндамалары. - 2018. - № 6. - P. 12-17. - Bibliogr.: p. 17 ISSN 2224-5227.
UDC:
537.3
Subject headings
- Electricity
Annotation
In this article, a high-efficiency solar photovoltaic battery is presented, based on the dispersion and focusing of solar radiation by wavelength with the installation of a dedicated solar cell for each spectral range
Keywords
photoelectric battery, holographic concentrator, photocell, dispersion, focusing, фотоэлектрлік батарея, фотоэлектрическая батарея
Kazakhstan
0/0 Free
periodical press (Magazines)
SEISENBAYEVA G. S.
Seisenbayeva, G. S. Enhanced charge separation at the interface of Cu2O/CuSCN composite thin films synthesized by electrodeposition technique [Text] / G. S. Seisenbayeva, D. S. Kambar , A. V. Zavgorodniy [et al.] // Қарағанды университетінің хабаршысы. Физика сериясы. - 2024. - № 3 (115). - P. 34-40. - Bibliogr.: p. 39 ISSN 2518-7198.
UDC:
535
Subject headings
- Optics
Annotation
This study focuses on the synthesis and characterization of hole transport layers (HTLs) for solar cells, particularly copper(I) thiocyanate (CuSCN) and cuprous oxide (Cu2O), synthesized via electrodeposition techniques
Keywords
solar cells, hole transport layers, electrodeposition, copper(I) thiocyanate, cuprous oxide, optimal synthesis conditions, photoelectric response, chare transport, электр тұндыру, электроосаждение
Kazakhstan
0/0 Free
periodical press (Magazines)
ADEKENOV S. M.
Adekenov, S. M. Endemic plants of asteraceae family of Kazakhstan flora and prospects of their study [Text] = Эндемичные растения семейства астровых флоры Казахстана и перспективы их изучения / S. M. Adekenov, D. T. Alibekov , E. M. Gabdullin [et al.]; Текст на англ., рус. яз. // Қазақстан Республикасы Ұлттық ғылым академиясының хабарлары. Биология және медицина сериясы. - 2017. - № 2 (320). - P. 78-87. - Bibliogr.: p. 82 ISSN 2224-5308.
UDC:
581:615.322
Subject headings
- General botany. Substances of plant origin
Annotation
The article contains data on plants collection for the period from 2002 to 2016 with the purpose of their phytochemical research
Keywords
endemic species, plant raw material, biologically active compounds, эндемичные виды, растительное сырье, биологически активныесоединения
Kazakhstan
0/0 Free
periodical press (Magazines)
STATSYUK V. N.
Statsyuk, V. N. Electrode reactions of phosphonic compounds of atmp and hedp on a platinum and glass-carbon electrodes [Text] / V. N. Statsyuk Ait Sauyk , M. Zh. Zhurinov [et al.] // Қазақстан Республикасы Ұлттық ғылым академиясының хабарлары. Геология және техникалық ғылымдар сериясы. - 2017. - № 5 (425). - P. 220-226. - Bibliogr.: p. 224-225 ISSN 2224-5278.
UDC:
544.653.22
Subject headings
- Electrochemical dissolution. Anodic dissolution
Annotation
The electrochemical activity of ATMF (aminotrismethylenephosphonic acid) and HEDP(1-hydroxyethane 1,1-diphosphonic acid) in solutions of sodium sulfate in the pH range from 1 to 6 on platinum and glasscarbon disc electrodes was determined
Keywords
anodic dissolution, cyclic voltammetry, cathodic maximum, potential sweep rate, анодтық еру, анодное растворение, initial potential
Kazakhstan
0/0 Free
periodical press (Magazines)
GOLKOVSKI M. G.
Golkovski, M. G. Efficiency of liquid-phase synthesis of ceramic materials under the influence of an electron beam with high penetrating power [Text] / M. G. Golkovski, I. P. Denisov , S. A. Ghyngazov [et al.] // Қарағанды университетінің хабаршысы. Физика сериясы. - 2024. - № 4 (116). - P. 35-45. - Bibliogr.: p. 43 ISSN 2518-7198.
UDC:
535.37
Subject headings
- Luminescence
Annotation
The paper proposes a method for calculating the energy efficiency of a beam during the synthesis of two-component oxide ceramics
Keywords
high voltage electron beam, electron beam melting, oxide ceramics synthesis, ceramics synthesis, оксидті керамика синтезі, синтез оксидной керамики
Kazakhstan
0/0 Free
abstract
BECYV, ALBERT
Ecosystems of tengiz depression`s south : Abstract of thesis for the academic degree of Doctor of Philosophy (PhD) in the specialty / Becyv, Albert ... – Astana : [N. p.], 2010. - 25 p. . – Bibiliogr.: 23 p. . – 100 c. – не указан : [N. p.]
UDC:
502.7+631.4
Shelf code:
А 2010/4457
Subject headings
- Earth subsoil
- Soil science
Annotation
Purpose is to identify the floristic diversity and phytocenotics variety of Tengiz depression ecosystems
Keywords
ecosystem, plant associations, flora of ecosystems of Tengiz, distribution of vegetation ecosystems
1/1 Free
abstract
NURMUKHANBETOVA, ALIYA K.
Experimental investigation of ecological situation of the KOSHKAR-ATA tailing dump and its adjacent territories : abstract of the dissertation submitted for the academic degree of PhD / Nurmukhanbetova, Aliya K. ... – Astana : [N. p.], 2010. - 24 p. . – Bibliogr.: 20-22 p. . – 100 c. – не указан : [N. p.]
UDC:
621.039.76(574.14):504.064.36
Shelf code:
А 2010/4206
Subject headings
- Monitoring of radiation of radioactive waste from Mangistau region
Annotation
Aims and the objects of research determination concentration of natural radionuclides and toxic elements in soil, water and aerosols
Keywords
determine radionuclide, physics
1/1 Free
abstract
XOJANOV BAXADIR KEUNIMJAEVICH
Darsdan tashqari mashg'ulotlar jarayonida yuqori sinf o'quvchilarini ekologik targ'ibotchilik faoliyatiga tayyorlashning pedagogik mexanizmini takomillashtirish = Совершенствование педагогического механизма подготовки учащихся старших классов к эколого-пропагандистской деятельности в процессе внеурочных занятий = Enhancing the pedagogical mechanism for preparing high school students for environmental promotion activities during extracurricular classes [Text] : Pedagogika fanlari boʻyicha falsafa doktori (PhD) dissertatsiyasi avtoreferati : 13.00.01 – Pedagogika nazariyasi. Pedagogik ta‟limotlar tarixi / B. K. Xojanov ; Nukus davlat pedagogika instituti huzuridagi ilmiy darajalar beruvchi dsc.03/30.12.2019.ped.34.01 raqamli ilmiy kengash, Nukus davlat pedagogika instituti ; Ilmiy rahbar: M. E. Pazilova ; Rasmiy opponentlar: B. B. Adizov, G. N. Utemuratova... – Nukus : [б. ж.], 2024. - 54 s. - Matn rus, o'zbek, ingliz tillarida . – E'lon qilingan ishlar ro'yxati: 53-54 s. . – 100 nusxa : 0 тг.
UDC:
502/504(075)(043.3)
Shelf code:
А 2024/14
Subject headings
- Природа. Охрана природных ресурсов. Угрозы окружающей среде и защита от них
Annotation
Tadqiqotning maqsadi darsdan tashqari mashgʻulotlar jarayonida oʻquvchilarni ekologik targʻibotchilik faoliyatiga tayyorlashning pedagogik mexanizmini takomillashtirish boʻyicha taklif va tavsiyalar ishlab chiqishdan iborat
Keywords
природа, охрана окружающей среды, nature, environmental protection, atrof-muhitni muhofaza, tabiat
1/1 Free
ZHURINOV M. ZH.
ELECTROCHEMICAL OXIDATION OF PHENOL ON LUMPY ELECTRODES AT A SURGE CURRENT POLARIZATION
periodical press (Magazines)
0/0 Free
KUTLAY H.
EXISTENCE OF EXTREMAL SOLUTIONS FOR A CLASS OF FRACTIONAL INTEGRO-DIFFERENTIAL EQUATIONS
periodical press (Magazines)
0/0 Free
periodical press (Magazines)
0/0 Free
SEISENBAYEVA G. S.
ENHANCED CHARGE SEPARATION AT THE INTERFACE OF CU2O/CUSCN COMPOSITE THIN FILMS SYNTHESIZED BY ELECTRODEPOSITION TECHNIQUE
periodical press (Magazines)
0/0 Free
ADEKENOV S. M.
ENDEMIC PLANTS OF ASTERACEAE FAMILY OF KAZAKHSTAN FLORA AND PROSPECTS OF THEIR STUDY
periodical press (Magazines)
0/0 Free
STATSYUK V. N.
ELECTRODE REACTIONS OF PHOSPHONIC COMPOUNDS OF ATMP AND HEDP ON A PLATINUM AND GLASS-CARBON ELECTRODES
periodical press (Magazines)
0/0 Free
GOLKOVSKI M. G.
EFFICIENCY OF LIQUID-PHASE SYNTHESIS OF CERAMIC MATERIALS UNDER THE INFLUENCE OF AN ELECTRON BEAM WITH HIGH PENETRATING POWER
periodical press (Magazines)
0/0 Free
abstract
1/1 Free
NURMUKHANBETOVA, ALIYA K.
EXPERIMENTAL INVESTIGATION OF ECOLOGICAL SITUATION OF THE KOSHKAR-ATA TAILING DUMP AND ITS ADJACENT TERRITORIES (2010)
abstract
1/1 Free
XOJANOV BAXADIR KEUNIMJAEVICH
DARSDAN TASHQARI MASHG'ULOTLAR JARAYONIDA YUQORI SINF O'QUVCHILARINI EKOLOGIK TARG'IBOTCHILIK FAOLIYATIGA TAYYORLASHNING PEDAGOGIK MEXANIZMINI TAKOMILLASHTIRISH (2024)
abstract
1/1 Free