Concept

Méthode de surrelaxation successive

Publications associées (45)

Methodology for the digital calibration of analog circuits and systems

This thesis presents a complete methodology for the digital calibration of analog circuits. It shows how to relax the extreme design constraints in analog circuits, allowing the realization of high-precision systems even with low-performance components. In ...

EPFL2005

An operator-splitting approach to nonoverlapping domain decomposition methods

Marco Discacciati

The Robin-Robin method is an iterative substructuring method to solve boundary-value problems (b.v.p.) on domains partitioned into nonoverlapping subdomains. It involves mixed-type boundary conditions on the interface, which depend on suitable weighting co ...

2004

Scale-free behavior and universality in random fragmentation and aggregation

Paolo De Los Rios, Amos Maritan

Two distinct methods underlying the existence of power-law distribution were studied. The distribution ws stationary under the process of merging and splitting of classes and the distribution of the entities under study was invariant. An explanation for th ...

2004

Modified fixed point algorithm in fluid–structure interaction

Fabio Nobile, Simone Deparis, Luca Formaggia

In this work, we address the numerical solution of some non-linear problems arising in the time discretization of fluid–structure interaction problems with fully implicit schemes. At each time step, we have to solve a highly non-linear coupled system, sinc ...

2003

Generation, representation and flow of phase information in structure determination: recent developments in and around SHARP 2.0

The methods for treating experimental data in the isomorphous replacement and anomalous scattering methods of macromolecular phase determination have undergone considerable evolution since their inception 50 years ago. The successive formulations used are ...

2003

Analysis of a geometrical multiscale model based on the coupling of ODEs and PDEs for blood flow simulations

Alfio Quarteroni

The purpose of the present article is to provide a theoretical analysis heterogeneous model coupling ordinary differential equations (ODEs) and partial differential equations (PDEs), providing a local-in-time existence result for the solution. The heteroge ...

2003

Numerical analysis of stable brine displacements for evaluation of density-dependent flow theory

David Andrew Barry

A numerical modelling approach, used for the analysis of stable brine displacement results, is described. The purpose of the analysis is to evaluate recent theoretical advances in modelling of density-dependent flow and transport. The data analysis involve ...

2001

Auto-zero differential difference amplifier

Maher Kayal

The differential difference amplifier (DDA) is considered as a versatile building block for the analogue processing of floating voltages. An automatic offset compensation scheme is proposed for the DDA structure. A digital successive approximation algorith ...

2000

Measurement of radiation damping rate constants in nuclear magnetic resonance by inversion recovery and automated compensation of selective pulses

Geoffrey Bodenhausen

A method is proposed to measure the radiation damping rate const. based on the anal. of the nonexponential recovery of the magnetization after inversion. It is applicable when the recovery is dominated by radiation damping rather than by relaxation process ...

2000

Multi-Scale B-Spline Snakes for General Contour Detection

Michaël Unser

Traditional snakes suffer from slow convergence speed (many control points) and difficult to adjust weighting factors for internal energy terms. We propose an alternative formulation using cubic B-splines, where the knot spacing is variable and controlled ...

SPIE1998

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