База данных: Статьи
Страница 48, Результатов: 708
Отмеченные записи: 0
471.
Подробнее
22.3
U44
Umurzhakova, Zh. B.
Quasiclassical limit of the schrodinger- Maxwell- Bloch equations. [Текст] / Zh. B. Umurzhakova, M. D. Koshanova, Zh. Pashen, K. R. Yesmakhanova // News of national academy of sciences of the republic of Kazakhstan. J2021. - №2. - P. 179-184
ББК 22.3
Рубрики: physics
Кл.слова (ненормированные):
dispersionless integrable system -- Quasiclassical limit -- schrodinger- Maxwell- Bloch equations -- lax pair
Аннотация: In this paper, we present the quasicalassical limit of the system of (1+1)- dimensional schrodinger- Maxwell- Bloch equations.
Держатели документа:
WKU
Доп.точки доступа:
Koshanova, M.D.
Pashen, Zh.
Yesmakhanova, K.R.
U44
Umurzhakova, Zh. B.
Quasiclassical limit of the schrodinger- Maxwell- Bloch equations. [Текст] / Zh. B. Umurzhakova, M. D. Koshanova, Zh. Pashen, K. R. Yesmakhanova // News of national academy of sciences of the republic of Kazakhstan. J2021. - №2. - P. 179-184
Рубрики: physics
Кл.слова (ненормированные):
dispersionless integrable system -- Quasiclassical limit -- schrodinger- Maxwell- Bloch equations -- lax pair
Аннотация: In this paper, we present the quasicalassical limit of the system of (1+1)- dimensional schrodinger- Maxwell- Bloch equations.
Держатели документа:
WKU
Доп.точки доступа:
Koshanova, M.D.
Pashen, Zh.
Yesmakhanova, K.R.
472.
Подробнее
22.6
K72
Kondratyeva, L. N.
Spectral and photometric study of some wolf-rayet stars. [Текст] / L. N. Kondratyeva, I. V. Reva, G. K. Aimanova, V. Y. Kim, I. M. Izmailova // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №3. - P. 75-84
ББК 22.6
Рубрики: astronomy
Кл.слова (ненормированные):
emission objects -- emission spectrum -- B V R magnitudes -- individual objects: WR2, WR3, WR 4, WR 5, WR 136, WR139,WR 154
Аннотация: This article presents preliminary results of observations of the group of WR stars.
Держатели документа:
WKU
Доп.точки доступа:
Reva, I.V.
Aimanova, G.K.
Kim, V.Y.
Izmailova, I.M.
K72
Kondratyeva, L. N.
Spectral and photometric study of some wolf-rayet stars. [Текст] / L. N. Kondratyeva, I. V. Reva, G. K. Aimanova, V. Y. Kim, I. M. Izmailova // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №3. - P. 75-84
Рубрики: astronomy
Кл.слова (ненормированные):
emission objects -- emission spectrum -- B V R magnitudes -- individual objects: WR2, WR3, WR 4, WR 5, WR 136, WR139,WR 154
Аннотация: This article presents preliminary results of observations of the group of WR stars.
Держатели документа:
WKU
Доп.точки доступа:
Reva, I.V.
Aimanova, G.K.
Kim, V.Y.
Izmailova, I.M.
473.
Подробнее
22.6
Y91
Yurin, D.
Twisted cosmic web as the origin of spiral structure in disk galaxies. [Текст] / D. Yurin, M. Kalambay, A. Ibraimova, H. Mahmet, M. Makukov // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №3. - P. 167-178
ББК 22.6
Рубрики: astronomy
Кл.слова (ненормированные):
disk galaxies -- spiral arms -- cosmic web -- n-body simulations
Аннотация: The origin of spiral arms is one of the intriguing problems of modern galactic dynamics.
Держатели документа:
WKU
Доп.точки доступа:
Kalambay, M.
Ibraimova, A.
Mahmet, H.
Makukov, M.
Y91
Yurin, D.
Twisted cosmic web as the origin of spiral structure in disk galaxies. [Текст] / D. Yurin, M. Kalambay, A. Ibraimova, H. Mahmet, M. Makukov // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №3. - P. 167-178
Рубрики: astronomy
Кл.слова (ненормированные):
disk galaxies -- spiral arms -- cosmic web -- n-body simulations
Аннотация: The origin of spiral arms is one of the intriguing problems of modern galactic dynamics.
Держатели документа:
WKU
Доп.точки доступа:
Kalambay, M.
Ibraimova, A.
Mahmet, H.
Makukov, M.
474.
Подробнее
22.1
D25
Dauylbayev, M. K.
Asymptotic expansion of solution of bvp with initial jumps for singularly perturbed integro-differential equation. [Текст] / M. K. Dauylbayev, N. Atakhan, n. Asset // News of national academy of sciences of the republic of Kazakhstan. - 2021. - №4. - P. 40-49
ББК 22.1
Рубрики: Mathematica
Кл.слова (ненормированные):
singular perturbation -- small parameter -- the inital jump -- asymptotic expansion -- the boundary layer
Аннотация: We consider the undivided boundary value problem for singularly perturbed linear integro-differential aquations of n-th order with integral Fredholm terms, which has the phenomenon m1-th order of an initial jump of order at the left end of the segment under consideration.
Держатели документа:
WKU
Доп.точки доступа:
Atakhan, N.
Asset, n.
D25
Dauylbayev, M. K.
Asymptotic expansion of solution of bvp with initial jumps for singularly perturbed integro-differential equation. [Текст] / M. K. Dauylbayev, N. Atakhan, n. Asset // News of national academy of sciences of the republic of Kazakhstan. - 2021. - №4. - P. 40-49
Рубрики: Mathematica
Кл.слова (ненормированные):
singular perturbation -- small parameter -- the inital jump -- asymptotic expansion -- the boundary layer
Аннотация: We consider the undivided boundary value problem for singularly perturbed linear integro-differential aquations of n-th order with integral Fredholm terms, which has the phenomenon m1-th order of an initial jump of order at the left end of the segment under consideration.
Держатели документа:
WKU
Доп.точки доступа:
Atakhan, N.
Asset, n.
475.
Подробнее
22.6
D 99
Dzhazairov-Kakhramanov, A. V.
The role of resonances in the capture of 8 Li (p,y)9 Be on the reaction rate of the relevant astrophisical synthesis of 9 Be. [Текст] / A. V. Dzhazairov-Kakhramanov, O. Imambekov, L. T. Karipbayeva, A. A. Steblyakova // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №4. - P. 50-59
ББК 22.6
Рубрики: astronomy
Кл.слова (ненормированные):
nuclear astrophysics -- primordial nucleosynthesis -- thermal and astrophysical energies -- p 8 Li cluster system -- radiative capture -- total cross section
Аннотация: The analitical parametrization is performed for the calculated reaction rate.
Держатели документа:
WKU
Доп.точки доступа:
Imambekov, O.
Karipbayeva, L.T.
Steblyakova, A.A.
D 99
Dzhazairov-Kakhramanov, A. V.
The role of resonances in the capture of 8 Li (p,y)9 Be on the reaction rate of the relevant astrophisical synthesis of 9 Be. [Текст] / A. V. Dzhazairov-Kakhramanov, O. Imambekov, L. T. Karipbayeva, A. A. Steblyakova // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №4. - P. 50-59
Рубрики: astronomy
Кл.слова (ненормированные):
nuclear astrophysics -- primordial nucleosynthesis -- thermal and astrophysical energies -- p 8 Li cluster system -- radiative capture -- total cross section
Аннотация: The analitical parametrization is performed for the calculated reaction rate.
Держатели документа:
WKU
Доп.точки доступа:
Imambekov, O.
Karipbayeva, L.T.
Steblyakova, A.A.
476.
Подробнее
22.3
I-85
Ismagambetova, T. N.
Thermodynamic properties of dense hydrogen plasmas with partially degenerate semiclassical ions. [Текст] / T. N. Ismagambetova, M. T. Gabdullin , T. S. Ramazanov // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №4. - P. 76-80
ББК 22.3
Рубрики: physics
Кл.слова (ненормированные):
quantum plasma -- screening -- diffraction effect -- dense plasma -- ion-ion interaction -- thermodinamic properties
Аннотация: In this article , we investigated the thermodinamic properties of a one -component dense non-ideal hydrogen plasma with semiclassical non -ideal ions against the background of degenerate quantum electrons.
Держатели документа:
WKU
Доп.точки доступа:
Gabdullin , M.T.
Ramazanov, T.S.
I-85
Ismagambetova, T. N.
Thermodynamic properties of dense hydrogen plasmas with partially degenerate semiclassical ions. [Текст] / T. N. Ismagambetova, M. T. Gabdullin , T. S. Ramazanov // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №4. - P. 76-80
Рубрики: physics
Кл.слова (ненормированные):
quantum plasma -- screening -- diffraction effect -- dense plasma -- ion-ion interaction -- thermodinamic properties
Аннотация: In this article , we investigated the thermodinamic properties of a one -component dense non-ideal hydrogen plasma with semiclassical non -ideal ions against the background of degenerate quantum electrons.
Держатели документа:
WKU
Доп.точки доступа:
Gabdullin , M.T.
Ramazanov, T.S.
477.
Подробнее
22.3
I-32
Ibrayev, A. T.
Correction of the theory of researching the properties of charged particles sources. [Текст] / A. T. Ibrayev // News of national academy of sciences of the republic of Kazakhstan. - 2021. - №4. - P. 89-96
ББК 22.3
Рубрики: physics
Кл.слова (ненормированные):
cathode lens -- ion source -- charged particle -- focusing -- trajectory -- aberation
Аннотация: this work is devoted to the adjustment of the existing methods of research and design of charged particle sources, which are the most important components of most analytical electron-optical devices and ion-beam technological installations, widely used in various scientific and technical complexes and systems
Держатели документа:
WKU
I-32
Ibrayev, A. T.
Correction of the theory of researching the properties of charged particles sources. [Текст] / A. T. Ibrayev // News of national academy of sciences of the republic of Kazakhstan. - 2021. - №4. - P. 89-96
Рубрики: physics
Кл.слова (ненормированные):
cathode lens -- ion source -- charged particle -- focusing -- trajectory -- aberation
Аннотация: this work is devoted to the adjustment of the existing methods of research and design of charged particle sources, which are the most important components of most analytical electron-optical devices and ion-beam technological installations, widely used in various scientific and technical complexes and systems
Держатели документа:
WKU
478.
Подробнее
65
M99
Myrkanova, A. M.
Anisotropy of economic space of the republic of Kazakhstan. [Текст] / A. M. Myrkanova, K. M. Akanova, A. L. Lastovetsky // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №4. - P. 107-113
ББК 65
Рубрики: Economics
Кл.слова (ненормированные):
anisotropy -- classification of regions -- localization of production -- cluster -- dendrogram
Аннотация: This article is devoted to the study of the rational use of the resource potential of the territories of the Republic of Kazakhstan on the basis of the coefficient of concentration orlocalization of production. The developed mathematical model takes into account many factors affecting the anisotropy of the country's economic space development, and allows us to propose an optimal strategy for managing regions. In the work using a cluster model based on hierarchical algorithms, graphs-dendrograms are constructed and regions are classified according to their level of competitiveness.
Держатели документа:
WKU
Доп.точки доступа:
Akanova, K.M.
Lastovetsky, A.L.
M99
Myrkanova, A. M.
Anisotropy of economic space of the republic of Kazakhstan. [Текст] / A. M. Myrkanova, K. M. Akanova, A. L. Lastovetsky // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №4. - P. 107-113
Рубрики: Economics
Кл.слова (ненормированные):
anisotropy -- classification of regions -- localization of production -- cluster -- dendrogram
Аннотация: This article is devoted to the study of the rational use of the resource potential of the territories of the Republic of Kazakhstan on the basis of the coefficient of concentration orlocalization of production. The developed mathematical model takes into account many factors affecting the anisotropy of the country's economic space development, and allows us to propose an optimal strategy for managing regions. In the work using a cluster model based on hierarchical algorithms, graphs-dendrograms are constructed and regions are classified according to their level of competitiveness.
Держатели документа:
WKU
Доп.точки доступа:
Akanova, K.M.
Lastovetsky, A.L.
479.
Подробнее
39.5
S28
Sayakov, O.
3D aerodynamic analysis of awing with 2- way fluid-structure interaction. [Текст] / O. Sayakov // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №4. - P. 129-134
ББК 39.5
Рубрики: Воздушный транспорт
Кл.слова (ненормированные):
NACA 23012 airfoil -- Fluid-Structure Interaction -- ANSYS -- strongly coupling study -- deformation of the wing
Аннотация: the aircraft wings facing different weather conditions start to deform and oscillate with an unpredictable velocity and amplitude. Most of the previous studies were conducted assuming the wing as a rigid body.However, the wing analysis with Fluid-Structure Interaction(FSI)has significant effectson the results. This paper compares the strongly coupled 2-way FSI analysisof the flexible wing with a geometry of NACA 23012and a rigid body 2D winganalysis. Both studies were carried out at a Mach number of 0.075 and Reynolds number of 0.6×106for different angles of attack.Moreover, the analysis of the wing deformation at the start of the flight is also presented. Finally, it was shownthat FSI analysis gives closer results to the experimental measurements, proving the worthiness of the extra efforts of the two-way FSI analysis
Держатели документа:
WKU
Доп.точки доступа:
Zhao, Y.
Mashekova, A.
S28
Sayakov, O.
3D aerodynamic analysis of awing with 2- way fluid-structure interaction. [Текст] / O. Sayakov // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №4. - P. 129-134
Рубрики: Воздушный транспорт
Кл.слова (ненормированные):
NACA 23012 airfoil -- Fluid-Structure Interaction -- ANSYS -- strongly coupling study -- deformation of the wing
Аннотация: the aircraft wings facing different weather conditions start to deform and oscillate with an unpredictable velocity and amplitude. Most of the previous studies were conducted assuming the wing as a rigid body.However, the wing analysis with Fluid-Structure Interaction(FSI)has significant effectson the results. This paper compares the strongly coupled 2-way FSI analysisof the flexible wing with a geometry of NACA 23012and a rigid body 2D winganalysis. Both studies were carried out at a Mach number of 0.075 and Reynolds number of 0.6×106for different angles of attack.Moreover, the analysis of the wing deformation at the start of the flight is also presented. Finally, it was shownthat FSI analysis gives closer results to the experimental measurements, proving the worthiness of the extra efforts of the two-way FSI analysis
Держатели документа:
WKU
Доп.точки доступа:
Zhao, Y.
Mashekova, A.
480.
Подробнее
22.3
A31
Aldakulov, Ye.
Influence of the neutral shadowing force on the pair correlation function of the dusty plasma under cryogenic conditions. [Текст] / Ye. Aldakulov, A. M. Temirbek, M. M. Muratov, Z. Moldabekov, T. S. Ramazanov // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №5. - P. 17-24
ББК 22.3
Рубрики: physics
Кл.слова (ненормированные):
neutral shadowing force -- radial distribution function -- dusty plasma -- cryogenic plasma
Аннотация: The paper considers the influence of the neutral shadowing force on the radial distribution function of a three-dimensional (3D) dusty plasma system under cryogenic conditions, i.e., at pressures below 1 Pa and at temperatures below 10K.
Держатели документа:
WKU
Доп.точки доступа:
Temirbek, A.M.
Muratov, M.M.
Moldabekov, Z.
Ramazanov, T.S.
A31
Aldakulov, Ye.
Influence of the neutral shadowing force on the pair correlation function of the dusty plasma under cryogenic conditions. [Текст] / Ye. Aldakulov, A. M. Temirbek, M. M. Muratov, Z. Moldabekov, T. S. Ramazanov // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №5. - P. 17-24
Рубрики: physics
Кл.слова (ненормированные):
neutral shadowing force -- radial distribution function -- dusty plasma -- cryogenic plasma
Аннотация: The paper considers the influence of the neutral shadowing force on the radial distribution function of a three-dimensional (3D) dusty plasma system under cryogenic conditions, i.e., at pressures below 1 Pa and at temperatures below 10K.
Держатели документа:
WKU
Доп.точки доступа:
Temirbek, A.M.
Muratov, M.M.
Moldabekov, Z.
Ramazanov, T.S.
Страница 48, Результатов: 708