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Browsing ELibrary by Title
Now showing items 5963-5982 of 21768
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(2001)A new approach for deriving kinetic parameters of diffusion-controlled metamorphic reactions is described. It is based on comparison of models of temperature field evolution near a cylindrical intrusion and observable ...
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(2003)Inverse modelling of geological processes, in the absence of established numerical criteria to act as inversion targets, requires an approach that uses human interaction to assess forward model results. The method of ...
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(2000)Monte Carlo inversion was applied in 2-dimensional conductive steady-state thermal simulation of a 600-km long lithosphere transect in the Fennoscandian Shield. The thermal regime in the mantle was constrained with ...
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(2002)Numerical modelling of the transient moisture fluxes helps in the development of appropriate water management practices, but requires site-specific information on soil hydraulic properties. Forward simulations with a given ...
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(2004)Linearized inversion equations of quasi P waves (qP) and quasi S waves (qS) in arbitrary weakly anisotropic media are presented. The equations can be used for local determination of weak anisotropy (WA) parameters in ...
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(2003)Generation of permeability field in a reservoir model that matchs historical dynamic production data requires an inverse calculation. A gradient method is typically used to solve the inverse minimization problem and requires ...
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(2002)A new method is presented, to obtain the stress state that best accounts for a set of double couple focal mechanisms of earthquakes. This method is based on the slip shear stress component (SSSC) criterion. The sum of the ...
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(2003)The phase velocity of Rayleigh-waves of a layered earth model is a function of frequency and four groups of earth parameters: compressional (P)-wave velocity, shear (S)-wave velocity, density, and thickness of layers. For ...
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(2002)Marine heat flow data, obtained with a Lister-type probe, consists of two temperature decay curves, frictional and heat pulse decay. Both follow the same physical model of a cooling cylinder. The mathematical model describing ...
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(2003)Vertical seismic profiling (VSP), an established technique, can be used for estimating in‐situ anisotropy that might provide valuable information for characterization of reservoir lithology, fractures, and fluids. The ...
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(1997)This paper presents two partial melting inversion methods that permit calculation of the degree of partial melting and source composition for cogenetic melting residues (residual peridotites or clinopyroxenes): the ...
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(2001)It is possible to express the inverse problem for flow in an integral form. The integral formulation affords some insight concerning the recovery of subsurface flow properties. In particular, we find that rapid or high ...
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(2002)A new method is presented for a purely kinematic analysis of relative motion data of crustal deformation. We start by developing a general integral formulation that links the relative motion between two positions to the ...
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(2003)I calculate Fourier-Bessel expansion coefficients for recorded shallow-seismic wavefields using a discrete approximation to the Bessel transformation. This is the first stage of a full-wavefield inversion. The transform ...
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(2003)The problem of inferring subsurface properties from shallow-seismic data is solved by a two-stage scheme that fits the full wavefield by its synthetic counterpart. In a first stage (described in a companion paper) I derive ...
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(2002)Inversion of surface nuclear magnetic resonance (SNMR) provides important information about aquifers, such as their depths, thickness, pore size and water content. Different methods (inverse quadratic, linear programming) ...
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(2004)When studying the crystallization sequence of the ore minerals in some gold-quartz deposits of the Verkhnyaya Indigirka region of Yakutia (Nagornoe, Dvoinoe, Klich, Kontrol'noe, Khangalas, Dirin-Yuryakh, Taryn, Kus-Yuryue, ...
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(1998)The apparent similarity of glacial and periglacial hummocky landscapes often leads to errors in delimiting former glaciated and perennially frozen areas by means of aerial mapping. To avoid the misinterpretation a set of ...
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(2003)This work extends the simple experimental studies initiated by Heilig et al. [J. Hydrol. 244(2001) 9] to study erosion processes inherent to a mechanistic soil erosion model (the Rose model) that were not addressed in ...
Now showing items 5963-5982 of 21768