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Impact of Soil Structure on Microwave Volume Scattering Evaluated by a Two-Dimensional Numerical Model
To assess whether volume characteristics can be inferred from radar measurements, a 2-D numerical model was developed based on a numerical solver using a time-domain finite-element method to solve Maxwell's equations and performed successfully.
Electromagnetic wave propagation in polarizable wet media : application to a TDR probe
The time domain reflectometry (TDR) probe is a technique applied to soil moisture measurement. This probe is a waveguide composed of two or three parallel metallic rods inserted in the ground,
Three-Dimensional Numerical Modeling of a Capacitance Probe
In this study, a three-dimensional model represents a capacitance probe measurement. It is based on Laplace's equation, which is solved using the Finite Element Method. A three-dimensional model can
Application of the Parallel Computing Technology to a Wave Front Model Using the Finite Element Method
A model based on the resolution of Maxwell's equations which allows to determine the electromagnetic field and the energy density is developed which is associated with the SIMD technology with the MPI C++ library for software implementation.
Numerical Model of Complex Porous Media
In complex porous media we often notice a percolation phenomenon [KIR 71] [GRI 89]. Usually these media present discontinuous characteristics and a random space distribution [LET 00] [BIR 95]. There
Simulation of a Compressible Flow by the Finite Element Method Using a General Parallel Computing Approach
The Finite Element Method associated with the C++ Object-Oriented Programming with only one database is used and a technique of data selection is used in the determination of the data dedicated to each processor.
A Numerical Tool for Transmission Lines
A new approach based on the Finite Element Method associated with an efficient algorithm for the numerical resolution of the telegrapher's equations is proposed to provide an efficient numerical tool for electric line simulation in complex configurations.
Modeling of Electromagnetic Waves in Media with Dirac Distribution of Electric Properties
We develop a new numerical approach of the electromagnetic wave propagation in a complex media model. We use a new Finite Element Method for space discretization and a finite difference method in
Cellular Model of Complex Porous Media Application to Permeability Determination
This work represents the soil as a compact matter associated with vacuum areas and introduces a physical consideration in a cellular model for permeability in soil science.