Approche de la qualité globale des aliments par analyse thésigraphique

National audienc

Application of Texture Analysis for the Crystallization Image Characterization

International audienc

Effets d'ondes électromagnétiques à basses fréquences sur les bioprocédés de traitement des eaux usées

International audienc

Development of a linear transient model for stimulation of isolated cardiac cells

Isolated cardiac cells stimulators design can be aided by numerical tools based on the behavior model. The linear model (RC circuit) is the most straightforward model for describing the electrical membrane cell behavior for an external electrical stimulation: however, an adjustment is necessary to make it competent to describe correctly the different types of excitation variability experimentally observed. A Linear Transient Model is presented, solved by the Finite Element Method

Low-Field Dedicated and Desktop Magnetic Resonance Imaging Systems for Agricultural and Food Applications.

International audienc

Magnetocardiography measurements with 4^4He vector optically pumped magnetometers at room temperature

Accepted Manuscript.International audienceIn this paper, we present a proof of concept study which demonstrates for the first time the possibility to record magnetocardiography (MCG) signals with $^4$He vector optically-pumped magnetometers (OPM) operated in a gradiometer mode. Resulting from a compromise between sensitivity, size and operability in a clinical environment, the developed magnetometers are based on the parametric resonance of helium in zero magnetic field. Sensors are operated at room-temperature and provide a tri-axis vector measurement of the magnetic field. Measured sensitivity is around 210 fT/√Hz in the bandwidth [2 Hz; 300 Hz]. MCG signals from a phantom and two healthy subjects are successfully recorded. Human MCG data obtained with the OPMs are compared to reference electrocardiogram (ECG) recordings: similar heart rates, shapes of the main patterns of the cardiac cycle (P/T waves, QRS complex) and QRS widths are obtained with both techniques

Dégradation de la membrane perfluorée renforcée en présence d'un défaut de la couche anodique dans une pile à combustible PEMFC

International audienc

Dégradation de la membrane perfluorée renforcée en présence d'un défaut de la couche anodique dans une pile à combustible PEMFC

International audienc

Dégradation de la membrane perfluorée renforcée en présence d'un défaut de la couche anodique dans une pile à combustible PEMFC

International audienc