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Your search keyword '"Jérôme Rossignol"' showing total 2 results
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2 results on '"Jérôme Rossignol"'

1. Shape-controlled Synthesis of Hematite for Microwave Gas Sensing

Author

B. de Fonseca, Pierre Pribetich, Didier Stuerga, Jérôme Rossignol, and Guillaume Bailly

Subjects
Diffraction, Materials science, Morphology (linguistics), Scanning electron microscope, Analytical chemistry, General Medicine, Hematite, ammonia, hematite, coplanar antenna, Shape control, gas sensor, shape-control, Transmission electron microscopy, visual_art, visual_art.visual_art_medium, microwave transduction, Microwave, Engineering(all)
Abstract

Hematite crystals of different shapes (dendrites, cubes, spindles and rhombohedra) were obtained via a low cost and environment-friendly microwave route. The structure and morphology were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). At last, a comparative microwave gas sensing study was performed to assess the influence of morphology on sensor response.

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2. Assessment of Burn Depths on Organs by Microwave

Author

Stéphane Binczak, Gabriel Laurent, B. de Fonseca, Jérôme Rossignol, and M. Brusson

Subjects
Materials science, Burn depth, Ablation of atrial fibrillation, open-ended coaxial probe, General Medicine, Liquid medium, Coaxial probe, dielectric properties, Relative variation, Reflection coefficient, burn depth assessment, Microwave, Engineering(all), microwave measurement, Biomedical engineering
Abstract

Monitoring the burn depth in heart during ablation of atrial fibrillation is a real challenge for the next years. The influence of the burning effect on the dielectric properties is not very developed and represents a growing interest in terms of characterization in medicine. Here, the microwave characterization of biological tissues in a liquid medium is performed through an open-ended coaxial probe placed directly against each sample. The evolution of the relative variation of the reflection coefficient is correlated with the depth of burned tissues. Measurements are performed on bovine muscles and pork hearts. Results are similar for both tissues.

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