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Publications

Affichage des publications 111 à 120 sur 3704 au total

Electromagnetism

Influence of plastic shear strain on the magnetic behaviour of pure iron

The effect of plastic strain on magnetic behaviour was studied earlier by many authors. These studies mainly focused on plastic straining obtained by tensile testing and on magnetic measurement along the tensile axis. We present in this paper some…

Z. Maazaz, Olivier de La Barrière, Olivier Hubert

Journal of Magnetism and Magnetic Materials -

Engineering Sciences

Kalman filter for radio astronomy dynamic imaging based on empirical covariances

Traditional Kalman filters are not immediately suitable for the estimation of state parameters with sample covariance matrices as observations. This comes from the fact that the observations must be first expressed as a linear function of sample…

Cyril Cano, Éric Chaumette, Pascal Larzabal, Mohammed Nabil EL KORSO, Isabelle Vin

Engineering Sciences

Sadi Carnot et la naissance de la thermodynamique

En 1824, il y a deux siècles, était publié Réflexions sur la puissance motrice du feu et sur les machines propres à développer cette puissance. Cet ouvrage, rédigé par Sadi Carnot alors âgé de 27 ans, pose les bases d’une discipline encore inconnue…

Morgan Almanza, Hélène Horsin Molinaro, Martino Lobue

Sciences et Techniques Industrielles - eduscol -

Engineering Sciences

Optimal drive cycle current supply of a wound field automotive electrical machine using surrogate models

Surrogate models have become a widely used solution for reducing computation times along design processes. In this work, a Gaussian Process surrogate model is built and used to predict the performance and losses of a wound field electrical machine…

Rebecca Mazloum, S Hlioui, Luc Laurent, M’hamed Belhadi, Guillaume Mermaz-Rollet, Mohamed Gabsi

Science and Technology for Energy Transition -

Engineering Sciences

Optimal drive cycle current supply of a wound field automotive electrical machine using surrogate models

Surrogate models have become a widely used solution for reducing computation times along design processes. In this work, a Gaussian Process surrogate model is built and used to predict the performance and losses of a wound field electrical machine…

Rebecca Mazloum, S Hlioui, Luc Laurent, M’hamed Belhadi, Guillaume Mermaz-Rollet, Mohamed Gabsi

Science and Technology for Energy Transition -

Signal and Image processing

Brightness and contrast corrections for stereocorrelation: Global and instantaneous formulation with spatial regularization

Stereocorrelation (SC) is a versatile experimental method increasingly used to measure 3D surface displacements in complex mechanical tests. However, convergence issues may arise when gray-level conservation is no longer validated, particularly when…

Xuyang Chang, Corentin Le Gourriérec, François Hild, Stéphane Roux

Mechanical Systems and Signal Processing -

Sciences of the Universe

Historical pyrite “mirrors” from the Ecuadorian Cañari culture, digital microscopy observations, mineralogical and elemental analysis

This research relies on microscopy and digital microscopy observations and spectral analysis techniques: Raman spectroscopy, laser-induced breakdown spectroscopy (LIBS) and particle-induced X-ray emission (PIXE), to recover part of the lost identity…

François Gendron, Xueshi Bai, Thomas Calligaro, Antony Borel, Vincent Detalle

Journal of Archaeological Science: Reports -