36 datasets found

This thesis provides a probabilistic solution to inverse problems through Bayesian techniques.The inverse problem considered here is to estimate the distribution of a...

This thesis deals with wide-band electromagnetic (EM) source synthesis, by Reversed-TLM (Transmission Line Matrix) method. The work is particularly focused on...

The miniaturization of the semiconductor devices is made possible by the improvemen of technological processing steps (such as lithography, etching, etc.). This...

Mémoires de Géosciences Rennes n° 70, 165 p. ISBN: 2-905532-69-6

We are interested in studying a heat transfer problem which modeling a welding process. The approach that we consider deals only with the solid part of the plate. It...

The magnetic field plays a major role in the star evolution as weil as its interaction with the circumstellar environment. A consequence of the magnetic activity is...

The identification of directional energy distribution from the field measurement is an "ill-posed" problem. Using the wave distribution function (WDF) concept, this...

The control of the physical properties of materials used to manufacture a product is essential. Therefore, it is necessary to determine their behavioral properties....

The prediction of sound radiated by vibrating structures using measured or calculated data is of interest to many manufacturers because it allows them to anticipate,...

On développe une méthode d'identification des efforts qui produisent les vibrations d'une structure, à partir de la connaissance de son champ de déplacement mesuré en...

[Departement_IRSTEA]Ecotechnologies [TR1_IRSTEA]INSPIRE

This thesis has been prepared at the CEA Léti, Minatec Campus, (Grenoble, France) and the IMS (Bordeaux, France) in the field of information and signal processing of...

DC resistivity imaging plays an important role for a wide range of applications related to the characterization of the shallow subsurface. Major developments have been...

Thermoacoustic engines are autonomous oscillators generally made of an acoustic resonator, partially filled with a porous material (stack) submitted to a strong,...

This PhD work provides methodological tools for the fast interpretation of airborne transient electromagnetic data (ATEM). As our first step, we focused on the problem...

In this thesis we study a nonlinear system of fractional differential equations with power nonlinearities; the solution of the system blows up in a finite time. We...

International audience

International audience

The paper addresses the reconstruction of a Navier-Stokes flow in water pipes at low Reynolds numbers. A classical strategy consists of identifying optimal boundary...

Reinforced and prestressed concrete beams are widely employed in civil engineering structures, e.g. in simply supported spans using prestressed concrete beams (VIPP)....