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Doklady Earth Sciences - An Erratum to this paper has been published: https://doi.org/10.1134/S1028334X22050208 相似文献
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A.V. Myasnikov N.A. Belov B. Gustafsson K. Eriksson 《Astrophysics and Space Science》2000,274(1-2):231-241
Gasdynamic features of detached shells around carbon stars with variable mass loss rate are investigated in detail numerically.
It is shown that a shell is unstable and also, 2D perturbations are less developed that 3D ones. The structure of perturbed
flows corresponding to different evolution scenarios is compared. The results obtained seem to be promising for interpretation
of observations, in particular, the recently obtained detailed data of TT Cyg.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
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We numerically analyze a magnetohydrodynamic, steady-state model for the interaction of a spherically symmetric solar wind with a three-component local interstellar medium (LISM), which is composed of plasma, hydrogen atoms, and a magnetic field. The magnetic field is assumed to be parallel to the velocity in the LISM. In this case, the model is axisymmetric. We study the effects of magnetic field on the plasma-flow geometry and on the distribution of hydrogen-atom parameters. In particular, we show that the presence of hydrogen atoms does not affect the qualitative change in the shape of the bow shock, the heliopause, and the solar-wind shock with increasing strength of the interstellar magnetic field. The presence of a magnetic field in the LISM can strongly affect the parameters of the energetic hydrogen atoms originated in the solar wind, although its effect on the “hydrogen wall” observed with the GHRS instrument onboard the HST spacecraft (Linsky and Wood 1996) is marginal. 相似文献
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CENOZOIC VOLCANISM AND GEOTHERMAL RESOURCES IN NORTHEAST CHINA 总被引：2，自引：0，他引：2
WANG Xi-kui QIU Shan-wen SONG Chang-chun KULAKOV Aleksey TASHCHI Stepan MYASNIKOV Evgeny 《中国地理科学(英文版)》2001,11(2):150-154
1 INTRODUCTION Northeast China is located in the eastern marginal part of Eurasian plate. There are about 700 Cenozoic volcanoes and about 50 000km2 volcanic rocks in Northeast China. The Cenozoic volcanism is related to the Pacific plate subducting, back-arc spreading and corresponding marginal continental rifting. About 700 Cenozoic volcanoes in Northeast China are concentrated at some places, so Shuangliao, Keluo, Wudalianchi, Yitong, Shulan, Shangzhi, Longgang, Jingbo Lake, … 相似文献
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中国东北新生代火山活动与地热资源 总被引：2，自引：0，他引：2
本文论述了中国东北新生代火山活动的时—空分布规律和温泉及热流高值区的空间分布特征,揭示了热流高值区和温泉分布区与新生代火山活动、裂谷运动和断裂活动的内在联系,特别强调了活动断裂对温泉和地热高异常区形成的控制作用。提出新生代火山活动区、裂谷盆地、断裂强烈活动区和大地震发生区,以及活化的古板块缝合带等地区,是最有利的地热资源勘探靶区。 相似文献
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A. V. Myasnikov S. A. Zhekov & N. A. Belov 《Monthly notices of the Royal Astronomical Society》1998,298(4):1021-1029
The properties of radiative steady-state colliding stellar winds in binary systems are studied. It is shown that the presence of a singularity at the stagnation point has a major influence on the structure of these flows. This problem is of great importance if their stability properties are considered. None of the existing models treats this mathematical problem properly, and special efforts must be undertaken in the future in order to come to a firm conclusion about the physical nature of possible instabilities. At the moment, neither numerical nor analytical models can be considered to be of acceptable accuracy in the case of highly radiative steady-state colliding stellar winds. 相似文献
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V. K. Milyukov A. V. Kopaev A. V. Lagutkina A. P. Mironov A. V. Myasnikov 《Izvestiya Physics of the Solid Earth》2007,43(11):922-930
Results of observations of tidal strains of the crust in the tectonically active Elbrus area of the Northern Caucasus carried out with the use of the Baksan SSAI laser interferometer strainmeter over the period from 2003 through 2006 are presented. Harmonic analysis is performed with the help of the ETERNA software package. Statistically significant time variations in the amplitudes of the main tidal waves M 2 and O 1 are revealed. The influence of the topography on tidal strains in the Baksan gorge is estimated at 22% (an increase in the measured strain values). The reduced amplitude factors of the main diurnal (O 1) and semidiurnal (M 2) waves are underestimated. Numerical modeling of tidal anomalies produced by regional heterogeneous inclusions is performed in a 2-D approximation. The observed anomaly of the M 2 wave (12%) is shown to be due to the influence of the main magma-controlling fault associated with the deep magma source of the Elbrus dormant volcano. 相似文献
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Two-dimensional calculations in the model of two colliding stellar winds are provided. The effects of energy losses on free-free emission and Comptonization are investigated. The expected X-ray emission of a typical WR+O binary system is calculated. 相似文献
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Aboozar Garavand Yuri Pavlovich Stefanov Yuri Leonidovich Rebetsky Rustam Alfredovich Bakeev Artem Veniaminovich Myasnikov 《国际地质力学数值与分析法杂志》2020,44(6):823-850
In many wellbore stability analyses, the ability to forecast both the occurrence and extent of plastic deformation and failure hinges upon a fundamental understanding of deformation mode and failure mechanism in the reservoir rock. This study focuses on analyzing plastic zones, localized deformations, and failures around a borehole drilled overbalanced or underbalanced through a highly porous rock formation. Based on several laboratory experiments, porous rocks are prone to deform under both shear-induced dilation and shear-enhanced compaction mechanisms depending on the stress state. The shapes of the deformation and failure patterns around the borehole are shown, depending on the initial stress state and the local stress paths. The inquiry of the local stress paths in the near-wellbore zone facilitates the understanding of the reasons for different types of failure mechanisms, including the mixed-mode and the plastic deformation structures. The modification of the 2D plane strain condition by imitating third stress in the numerical scheme helps us bring the stress paths closer to the real state of loading conditions. Our modeling reveals that the transition from isotropic to anisotropic stress state is accompanied by an increase in the deviatoric part of effective shear tensor that leads to the development of inelastic deformation, degradation, and subsequent rock failure. Particular interest is devoted to the modeling of strain localization especially in compaction mode around a wellbore and computing the amount of stress concentration at the tips of dog-eared breakouts. Stress concentration can result in a change in irreversible deformation mode from dilatancy to compaction, elucidating the formation of the shear-enhanced compaction phenomenon at the failure tips in the direction of the minimum horizontal stress. 相似文献