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Browsing ELibrary by Title
Now showing items 8136-8155 of 21879
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(2004)Evolution of the Earth's mantle from a hot initial state is modelled in the Boussinesq approximation within the framework of a thermochemical model. The spatial dynamics of substance within a spherical layer is illustrated ...
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(2004)Full-scale numerical modeling of the geodynamic evolution of the Earth throughout its existence is performed in terms of the thermochemical model of mantle convection proposed by the authors. Numerical modelling results ...
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(2004)We present finite-difference simulation results that lend new insight into the behavior of multicomponent induction logging tools when in the presence of anisotropic layers, boreholes, and invasion zones. We use four ...
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(2004)This paper deals with the numerical analyses on the effect of inhomogeneities (highly conductive layers) on the propagation of seismogenic electromagnetic signals in the ULF/ELF range. For simplicity of computations we ...
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(2000)Calculation of an 40Ar/39Ar age involves several sources of systematic (external) and statistic (mostly instrumental) errors that should be propagated into the final result for a proper statistical assessment of the age ...
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(2002)Combining a geological model with a geomechanical model, it generally turns out that the geomechanical model is built from units that are at least a 100 times larger in volume than the units of the geological model. To ...
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(1999)A one-dimensional TEM problem is solved with regard for wave processes in a nonmagnetic medium. Based on the disturbance and conjugate-equation methods, functions of the field sensitivity to model parameters (Frechet ...
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(2001)Numerical solutions by finite-difference techniques to problems of dynamical fracture growth exhibit oscillations with large amplitudes near the edges of the fractures that are caused by the stepwise advance of the edge ...
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NUMERICAL INVESTIGATION OF LAKE BED SEEPAGE PATTERNS: EFFECTS OF POROUS MEDIUM AND LAKE PROPERTIES (2001)Three-dimensional steady-state numerical models were used to investigate the relative significance of several factors controlling lake bed seepage patterns: lake depth, lake bed slope, orientation of an asymmetric lake ...
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(2003)Numerical investigations of the relationship between permeability distributions representing fracture apertures and the transport of inert and reactive solutes have been carried out. To model reactive transport, a lattice ...
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(2004)The objective of this paper is to develop a predictive numerical model able to provide indications regarding the triggering of future rock falls on the Grossgufer slope. The work involves the analysis of a previous rock ...
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(1996)A numerical model is proposed for the mechanism of a rockslide avalanche on the slope of Koryakskiy volcano caused by the emplacement of sheeted intrusive bodies. The model of non-stationary geomechanical processes with ...
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(2003)In this paper we consider crystallization of solid solutions and formation of growth zoning in minerals. To ascertain the role of various mechanisms producing zoning we have constructed kinetic models of nonsteady solid ...
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(2001)With the help of two-dimensional numerical models this paper investigates three aspects of heterogeneous deformation around rigid objects: (1) the nature of particle paths; (2) the development of strain shadow zones; and ...
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(2001)A set of empirical equations is developed which allows calculation of chromian spinel composition in equilibrium with a basaltic melt under a known set of conditions. These equations are calibrated with published experimental ...
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NUMERICAL MODELING OF NEOTECTONIC MOVEMENTS AND THE STATE OF STRESS IN THE NORTH CAUCASUS FOREDEEP (2002)This paper examines modern tectonic processes and the state of stress in the North Caucasus along three profiles that cross its eastern, central, and western parts. Using the models of crustal structure along these profiles, ...
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(2001)Methodology of automatic tracking of trajectories of cracks has been offered. The methodology has been ground and is suitable for quantitative investigation of growth of cracks and deformation of rocks during compression. ...
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(2002)Herein we present numerical simulations of Chicxulub-scale impact events. We used the three-dimensional version of the SOVA (solid, vapor, air) computer code in hydrodynamic approximation (no strength) to model the initial ...
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(2006)Numerical modeling of generation and propagation of tsunami waves caused by underwater earthquakes in the Black Sea basin is carried out using the model of dynamic seismic source. A number of historical tsunamis are ...
Now showing items 8136-8155 of 21879