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Жанр:Естественные науки (natural_sciences)
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111-120 из 127
периодические издания(Журналы)
ALTYNBEK Т. О.
Altynbek, Т. О. Natural regulators of Heteroptera - bloodsuking mosquitoes in the resorviors of the Charyn state national park [Text] / Т. О. Altynbek, P. А. Esenbekova , М. Б. Zhaksybayev // Қазақстан Республикасы Ұлттық ғылым академиясының хабарлары. Биология және медицина сериясы. - 2020. - № 3 (339). - P. 35-40. - Bibliogr.: p. 39-40 ISSN 2224-5308.
УДК:
595.754
Предметная рубрика
- Heteroptera. Bugs
Аннотация
The present article deals with the role of bioregulation as a result of the study of aquatic Heteroptera in 25 stop-flowing and slow-flowing reservoirs on the territory of Charyn State National Natural Park in the springsummer period 2019
Ключевые слова
fauna, bug, mosquitoes, larvae, жартылай қаттықанаттылар, қансорғыш масалар, водные жестокрылые, кровососные комары
Казахстаника
0/0 Свободно
периодические издания(Журналы)
ZVEKOV A. A.
Zvekov, A. A. Non-linear optic properties of colloids prepared by metal targets’ laser ablation in dimethylsulfoxide [Text] / A. A. Zvekov, A. V. Kalenskii , A. V. Ivanov [et al.] // Қарағанды университетінің хабаршысы. Физика сериясы. - 2024. - № 4 (116). - P. 123-132. - Bibliogr.: p. 130-131 ISSN 2518-7198.
УДК:
535.015
Предметная рубрика
- Optical phenomena
Аннотация
The aim of the work is to study the non-linear light attenuation and accompanying effects in the model metal colloids prepared with laser ablation method
Ключевые слова
ablation, dimethylsulfoxide, non-linear light attenuation, photoacoustic spectroscopy, laser irradiation, абляция, диметилсульфоксид
Казахстаника
0/0 Свободно
периодические издания(Журналы)
IBRAEV A. T.
Ibraev, A. T. Numerical investigation of the aberrational coefficients of a box shaped cathode lens [Text] / A. T. Ibraev, A. B. Sagyndyk // Қазақстан Республикасы Ұлттық ғылым академиясының хабарлары. Геология және техникалық ғылымдар сериясы. - 2017. - № 4 (424). - P. 108-114. - Bibliogr.: p. 113 ISSN 2224-5278.
УДК:
537.533.3
Предметная рубрика
- Electronic optics
Аннотация
In the present article, the numerical investigation of the aberration coefficients that determine the electron-optical characteristics of a three-electrode cathode lens is carried out
Ключевые слова
cathode lens, electronic optics, ion, aberration, катодты линза, катодная линза
Казахстаника
0/0 Свободно
периодические издания(Журналы)
KURALBAYEV Z. K.
Kuralbayev, Z. K. Numerical analysis of the character of efflux of highly viscous fluids from the "narrow channel" [Text] / Z. K. Kuralbayev, A. A. Taurbekova // Қазақстан Республикасы Ұлттық ғылым академиясының хабарлары. Геология және техникалық ғылымдар сериясы. - 2017. - № 3 (423). - P. 245-255. - Bibliogr.: p. 254-255 ISSN 2224-5278.
УДК:
519.6:539.374
Предметная рубрика
- Numerical analysis. Fluidity. Deformations of viscous liquids
Аннотация
A mathematical problem of the efflux of high-viscosity fluids from the so-called "narrow channel" has been formulated on the basis of the mathematical model of the efflux of igneous materials
Ключевые слова
igneous substance, high-viscosity fluid, quasi-linear parabolic equation, магмалық заттар, магматические вещества
Казахстаника
0/0 Свободно
периодические издания(Журналы)
BACHTAEV SH. A.
Bachtaev, Sh. A. New controlling methods of the ozone concentration in the atmospheric air [Text] / Sh. A. Bachtaev, A. Zh. Toigozhinova , G. K. Sydykova [et al.] // Қазақстан Республикасы Ұлттық ғылым академиясының хабарлары. Геология және техникалық ғылымдар сериясы. - 2017. - № 6 (426). - P. 273-281. - Bibliogr.: p. 280 ISSN 2224-5278.
УДК:
537.523.3
Предметная рубрика
- Corona discharge
Аннотация
Basic principles are expounded and prospects of application of homopolar corona charge on microelectrodes (microwire, needles and etc.) for development of methods and methods of control of concentration of ozone in atmospheric air
Ключевые слова
corona charge, microelectrode, ozone, mobility of ions, balancing network, impulse mode, electronic avalanches, тəжді разряд, озон, коронный разряд
Казахстаника
0/0 Свободно
периодические издания(Журналы)
ASHYRALYYEV C.
Ashyralyyev, C. Numerical solution of source identification multi-point problem of parabolic partial differential equation with Neumann type boundary condition [Text] / C. Ashyralyyev, T. A. Ashyralyyeva // Қарағанды университетінің хабаршысы. Математика сериясы. - 2024. - № 3 (115). - P. 66-76. - Bibliogr.: p. 74-76 ISSN 2518-7929.
УДК:
517.956.4
Предметная рубрика
- Parabolic equations and systems
Аннотация
Stability estimates for the solution of the overdetermined mixed BVP for multidimensional parabolic equation were established. The first and second order of accuracy difference schemes for the approximate solution of this problem were proposed
Ключевые слова
parabolic equation, difference scheme, nonlocal condition, boundary value problem, well-posedness, stability estimates, mixed problem, inverse problem
Казахстаника
0/0 Свободно
периодические издания(Журналы)
FAZYLOV S. D.
Fazylov, S. D. New derivatives of 5-mercapto-3-phenyl-1,3,4-thiadiazol-2-tione. Synthesis and structure [Text] / S. D. Fazylov, O. A. Nurkenov , M. K. Ibraev [et al.] // Қазақстан Республикасы Ұлттық ғылым академиясының баяндамалары. - 2017. - № 2. - P. 39-46. - Bibliogr.: p. 46 ISSN 2224-5227.
УДК:
547.94
Предметная рубрика
- Natural alkaloids
Аннотация
The paper presents review of the past 10 years of research on preparative methods of synthesis of new derivatives of 1,3,4-thiadiazole
Ключевые слова
5-mercapto-3-phenyl-1,3,4-thiadiazole-2-thione, S-(4-phenyl-5-thioxo-4,5-dihydro-1,3,4-thiadiazol-2-yl)prop-2enethioate, thiol, organic chemistry, органикалық химия
Казахстаника
0/0 Свободно
периодические издания(Журналы)
BURTEBAYEV N.
Burtebayev, N. New measurements of differential cross section for elastic scattering process of 16o(p,p)16o at astrophysical energies [Text] / N. Burtebayev, D. M. Zazulin , Zh. K. Kerimkulov [et al.] // Қазақстан Республикасы Ұлттық ғылым академиясының баяндамалары. - 2017. - № 1. - P. 5-10. - Bibliogr.: p. 9 ISSN 2224-5227.
УДК:
52
Предметная рубрика
- Astrophysics
Аннотация
The overview and analysis of existing literature experimental data on elastic scattering of protons by 16O nuclei are carried out. The experimental complex and measuring methods of the work are described in detai
Ключевые слова
experimental set-up, UKP-2-1 accelerator, elastic scattering, differential cross sections, 16O(p,p)16O, астрофизика
Казахстаника
0/0 Свободно
брошюра
MARTIN, FINK
Northern Spotted Owls / Martin, Fink ... – New York : Children's press, 2002. - 47 p., ill.;– (A True Book. . . – 0-516-22164-7 : 300 tg.
УДК:
502
Полочный шифр:
Л 2010/28069
Предметная рубрика
- Nature
Аннотация
Describes the life cycle, characteristics, habitats, and behaviors of Northern spotted owls, as well as ways to prevent their extinction
Ключевые слова
birds, nature, owls
1/1 Свободно
брошюра
IRVINE, SARAH
No Animals, no Plants : species at risk / Irvine, Sarah ... – New York : Children's Press, 2008. - 36 p.– (Shockwave science. . . – 978-0-531-17766-2, 0-531-17766-1, 0-531-15496-3, 978-0-531-15496-0 : 150 tg.
УДК:
502
Полочный шифр:
Р 2012/5036
Предметная рубрика
- Nature
Аннотация
Nobody knows exactly how many plants and animals live on the earth. So far, scientists have counted about 260000 different species of plants
Ключевые слова
endangered species, nature, juvenile literature, endangered plants, parks, plants in America, genetics, zoology, genes
1/1 Свободно
ALTYNBEK Т. О.
NATURAL REGULATORS OF HETEROPTERA - BLOODSUKING MOSQUITOES IN THE RESORVIORS OF THE CHARYN STATE NATIONAL PARK
периодические издания(Журналы)
0/0 Свободно
ZVEKOV A. A.
NON-LINEAR OPTIC PROPERTIES OF COLLOIDS PREPARED BY METAL TARGETS’ LASER ABLATION IN DIMETHYLSULFOXIDE
периодические издания(Журналы)
0/0 Свободно
IBRAEV A. T.
NUMERICAL INVESTIGATION OF THE ABERRATIONAL COEFFICIENTS OF A BOX SHAPED CATHODE LENS
периодические издания(Журналы)
0/0 Свободно
KURALBAYEV Z. K.
NUMERICAL ANALYSIS OF THE CHARACTER OF EFFLUX OF HIGHLY VISCOUS FLUIDS FROM THE "NARROW CHANNEL"
периодические издания(Журналы)
0/0 Свободно
BACHTAEV SH. A.
NEW CONTROLLING METHODS OF THE OZONE CONCENTRATION IN THE ATMOSPHERIC AIR
периодические издания(Журналы)
0/0 Свободно
ASHYRALYYEV C.
NUMERICAL SOLUTION OF SOURCE IDENTIFICATION MULTI-POINT PROBLEM OF PARABOLIC PARTIAL DIFFERENTIAL EQUATION WITH NEUMANN TYPE BOUNDARY CONDITION
периодические издания(Журналы)
0/0 Свободно
FAZYLOV S. D.
NEW DERIVATIVES OF 5-MERCAPTO-3-PHENYL-1,3,4-THIADIAZOL-2-TIONE. SYNTHESIS AND STRUCTURE
периодические издания(Журналы)
0/0 Свободно
BURTEBAYEV N.
NEW MEASUREMENTS OF DIFFERENTIAL CROSS SECTION FOR ELASTIC SCATTERING PROCESS OF 16O(P,P)16O AT ASTROPHYSICAL ENERGIES
периодические издания(Журналы)
0/0 Свободно
брошюра
1/1 Свободно
брошюра
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