Functional Molecular Biodiversity: Assessing the Immune Status of Two Sponge Populations (Suberites domuncula) on the Molecular Level     

Heinz C. Schröder  Vladislav A. Grebenjuk  Michael Binder  Alexander Skorokhod  Renato Batel  Hamdy Hassanein  & Werner E. G. Müller 《Marine Ecology》2004,25(2):93-108

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Situational Adaptation of Spatial Data in On-Board Geographic Information Systems     

Vladislav Alexandrovich Androsov  Konstantin Vadimovich Malynkin  Dmitry Vladimirovich Sukhomlinov  Anna Nikolaevna Tikhomirova 《Journal of the Indian Society of Remote Sensing》2016,44(3):427-433

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Deep structure of the lithosphere beneath the territory of Bulgaria     

Vladislav Babuška  Jaroslava Plomerová  Edelvays Spasov  Reviewer J. Janský 《Studia Geophysica et Geodaetica》1987,31(3):266-283

Summary Teleseismic P residuals calculated for waves arriving from various azimuths and angles of incidence, and a 3-D inversion of the residuals provided the basis for characterizing the uppermost mantle structure beneath Bulgaria. The Moesian Platform and the Rhodopean Massif are two different blocks characterized by a lithosphere thickness of about 130–140 km with a zone of lithosphere thinning along their contact. Both units have opposite patterns of the directional dependence of relatively high and low P velocities. This directional dependence is interpreted by dipping anisotropic structures in the subcrustal lithosphere, which probably represent remnants of paleosubductions of an old oceanic lithosphere.

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Relation between the extreme angular and areal distortion in cartographic representation     

Vladislav Hojovec  Luděk Jokl  Reviewer J. Kašpar 《Studia Geophysica et Geodaetica》1981,25(2):132-151

Summary The paper presents the method of deriving representations, optimal from the point of view of global characteristics, for areal and extreme angular distortion (3), (7), if one is optional and the other characteristic is minimized at the same time. If a special minimization method (Section 5) is used for computer processing, the problem can be solved in the region of representation equations in the form of polynomials of the 3rd or 5th degree, while assuming symmetry relative to the equator and the central meridian. Thus, the method enables both the fundamental global characteristics to be regulated freely. Their dependence is illustrated in graphs (Figs 2 and 6) depending on the selected examples of representations of the whole globe. The latter shows that method is a contribution for cartographic practice as well.  相似文献   

Klasse Äquivalenter,in Meridianen äquidistanter Abbildungen     

Vladislav Hojovec  Rezensent M. Pick 《Studia Geophysica et Geodaetica》1978,22(3):231-240

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Elastic properties of eclogite rocks from the Bohemian massif   总被引：1，自引：0，他引：1  

Vladislav Babuška  Jiří Fiala  D. J. Mayson  R. C. Liebermann  Reviewer J. Buben 《Studia Geophysica et Geodaetica》1978,22(4):348-361

Summary Compressional velocity anistropy has been studied in detail at atmospheric pressure for 78 specimens of 23 types of eclogite rocks from the Bohemian massif. For nine of these rock types, compressional and shear velocities were measured as a function of pressure to750 MPa at room temperature. The velocity anisotropy for both compressional and shear waves is less than4% at high pressure. The velocities increase with increasing garnet content and decrease with increasing symplectitization. The Moldanubian eclogites have significantly higher velocities, on the average, than the eclogites from the Kruné hory crystalline complex, although the densities of both groups are comparable.  相似文献   

Simulation of the internal tide in the Strait of Bab el Mandeb (the Red Sea)     

Androsov  A. A.  Voltzinger  N. E. 《Izvestiya Atmospheric and Oceanic Physics》2008,44(1):121-137

The baroclinic tide in the Strait of Bab el Mandeb is simulated by solving a three-dimensional boundary-value problem in boundary-fitted coordinates for the equations of dynamics, density constituents, and turbulence characteristics. Results related to simulations of the barotropic tide in the Red Sea and to the internal tide in the Strait of Bab el Mandeb are presented.  相似文献   

On the Nature of the Impactor That Formed the Shackleton Crater on the Moon     

Svetlana G. Pugacheva  Ekaterina A. Feoktistova  Vladislav V. Shevchenko 《Earth, Moon, and Planets》2016,118(1):27-50

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A “Spring–mass” model of tethered satellite systems: properties of planar periodic motions     

Vladislav V. Sidorenko  Alessandra Celletti 《Celestial Mechanics and Dynamical Astronomy》2010,107(1-2):209-231

This paper is devoted to the dynamics in a central gravity field of two point masses connected by a massless tether (the so called “spring–mass” model of tethered satellite systems). Only the motions with straight strained tether are studied, while the case of “slack” tether is not considered. It is assumed that the distance between the point masses is substantially smaller than the distance between the system’s center of mass and the field center. This assumption allows us to treat the motion of the center of mass as an unperturbed Keplerian one, so to focus our study on attitude dynamics. A particular attention is given to the family of planar periodic motions in which the center of mass moves on an elliptic orbit, and the point masses never leave the orbital plane. If the eccentricity tends to zero, the corresponding family admits as a limit case the relative equilibrium in which the tether is elongated along the line joining the center of mass with the field center. We study the bifurcations and the stability of these planar periodic motions with respect to in-plane and out-of-plane perturbations. Our results show that the stable motions take place if the eccentricity of the orbit is sufficiently small.  相似文献   

Time-dependent uptake of NO3 by sea salt     

Vladislav V. Zelenov  Elena V. Aparina  Andrey V. Ivanov 《Journal of Atmospheric Chemistry》2014,71(1):33-53

Using a coated-insert flow tube reactor coupled to a low-energy electron-impact mass spectrometer with molecular beam sampling, we studied uptake of NO₃ by sea salt at room temperature and [NO₃]?=?8?10¹¹???4?10¹³ molecule cm^?3. The radical uptake coefficient γ(t) is time dependent: its initial value (γ _ini) decreases exponentially with the characteristic time (τ) to its steady-state value (γ _ss) at given [NO₃]. The parameters γ _ini, γ _ss and τ depend on [NO₃], whereas γ _ss is water vapor independent at [H₂O]?=?8?10¹²???1.6?10¹⁵ molecule cm^?3 and RH ≤ 0.5 %. HCl and NO₂ are uptake products detected in the gas phase. We used these findings to estimate γ values under tropospheric conditions for urban coastal and remote marine environments: at high NO₃ (~90 ppt), the time dependence becomes important, and the γ value averaged over the aerosol lifetime is 4?10^?3; at low NO₃ (~1 ppt), the radical uptake is time independent and proceeds faster with γ _ini?=?8?10^?3  相似文献