Search results for " Analisi numerica"

showing 10 items of 107 documents

Bio-electromagnetic Numerical Modeling for Health Diagnostics

Settore ING-IND/31 - ElettrotecnicaSettore MAT/08 - Analisi Numericabioelectromagnetic fields bioelectromagnetism numerical methods medical imaging neuroimaging brain activity electroencephalography magnetoencephalography EEG MEG meshfree meshless method of fundamental solutionscampi bioelettromagnetici bioelettromagnetismo metodi numerici diagnostica per immagini attività cerebrale elettroencefalografia magnetoencefalografia metodo delle soluzioni fondamentali
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CARATTERIZZAZIONE ELETTROMAGNETICA DEL COMPORTAMENTO DINAMICO DI ELETTRODI INTERRATI IN PRESENZA DI IONIZZAZIONE DEL TERRENO

2009

Settore ING-IND/31 - ElettrotecnicaSettore MAT/08 - Analisi Numericafinite difference time domain methodionizzazione
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IMAGING DI CANALI SOTTILI PER APPLICAZIONI BIO-MEDICALI

2013

Settore ING-IND/31 - ElettrotecnicaSettore MAT/08 - Analisi Numericaimagingapplicazioni bio-medicali
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Beyond the BEM Solution of the M/EEG Forward Problem: a Meshfree Approach

2014

Settore ING-IND/31 - ElettrotecnicaSettore MAT/08 - Analisi Numericameshfree solver EEG
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Un metodo numerico meshfree particellare nel dominio del tempo per l’analisi elettromagnetica: sviluppo di applicazioni 3D

2009

Settore ING-IND/31 - ElettrotecnicaSettore MAT/08 - Analisi Numericametodo meshfreeanalisi elettromagnetica
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An efficient method to reconstruct invariant manifolds of saddle points

2017

In vector field analysis, saddle points have two different types of invariant manifolds, namely stable ones and unstable ones. The invariant manifolds represent separatrices that partition the domain of trajectories into invariant regions of different dynamics. In this work, we analyze the basins of attraction of two different stable nodes by reconstructing the separatrices of a saddle point. To this purpose we present a computational algorithm that detects the points lying on the manifold, considering the plane generated by the two stable eigenvectors of the saddle point. Finally we reconstruct the surface by using the moving least-squares approximant method.

Settore MAT/08 - Analisi NumericaApplied Mathematics
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On invariant manifolds of saddle points for 3D multistable models

2017

In dynamical systems a particular solution is completely determined by the parameters considered and the initial conditions. Indeed, when the model shows a multistability, starting from different initial state, the trajectories can evolve towards different attractors. The invariant manifolds of the saddle points separate the vector field into the basins of attraction of different stable equilibria. The aim of this work is the reconstruction of these separation surfaces in order to know in advance the geometry of the basins. In this paper three-dimensional models with three or more stable fixed points is investigated. To this purpose a procedure for the detection of the scattered data lying …

Settore MAT/08 - Analisi NumericaDynamical systems Invariant manifolds Separatrix Meshfree method Moving Least Squares.
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A Meshless Method for Image Reconstruction

2009

Settore MAT/08 - Analisi NumericaImage reconstructionSmoothed Particle HydrodynamicMeshless method
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ADVANCED MESHLESS NUMERICAL METHODS AND APPLICATIONS

Settore MAT/08 - Analisi NumericaMESHLESS METHOD APPROXIMATION BIO-MATHEMATICS DYNAMICAL SYSTEM SEPARATRIX MOVING LEAST SQUARE SMOOTHED PARTICLE HYDRODYNAMICS IMPROVED FAST GAUSSIAN
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Some numerical modelings beyond the mesh

2015

In recent years meshless methods have gained much attention in several application areas of science. These methods benefit of savings due to the elimination of meshing process and are suite to handle changes in the geometry of the domain of interest. Further advantages come from the ease of implementation, which makes computer codes very flexible. We present some numerical experiences lying in the meshless framework dealing with domain and boundary-type methods.

Settore MAT/08 - Analisi NumericaMFSnumerical accuracySPH
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