Publications

• Article dans une revue

Indirect stability of a multidimensional coupled wave equations with one locally boundary fractional damping

Mohammad Akil, Ali Wehbe

In this work, we consider a system of multidimensional wave equations coupled by velocities with one localized fractional boundary damping. First, using a general criteria of Arendt–Batty, by assuming that the boundary control region satisfy some geometric conditions, under the equality speed…

Mathematical News / Mathematische Nachrichten, 2022, 295 (12), pp.2272-2300. ⟨10.1002/mana.202100185⟩. ⟨hal-04346829⟩

• Communication dans un congrès

Modeling complex mechanical computer codes with functional input via Gaussian processes

Andrés F. López-Lopera, Franck Massa, Isabelle Turpin, Nicolas Leconte

Surrogate models based on Gaussian processes (GPs) have been successfully used as a complement of costly-to-evaluate complex computer codes. They are capable to provide accurate predictions with confident intervals but require fewer costs (in both time and resources). Here, we focus on a class of…

The 43th Ibero-Latin American Congress on Computational Methods in Engineering (CILAMCE), Nov 2022, Foz do Iguaçu, Brazil. ⟨hal-03882473⟩

• Communication dans un congrès

High-dimensional additive Gaussian processes under monotonicity constraints

Andrés F. López-Lopera, François Bachoc, O Roustant

We introduce an additive Gaussian process framework accounting for monotonicity constraints and scalable to high dimensions. Our contributions are threefold. First, we show that our framework enables to satisfy the constraints everywhere in the input space. We also show that more general…

Advances in Neural Information Processing Systems, Nov 2022, New Orleans, United States. ⟨hal-03695058⟩

• Thèse

Optimisation des propriétés de céramiques piézoélectriques sans plomb du type BCTZ par modification de la composition et par dopage., Optimization of the properties of lead-free piezoelectric ceramics of the BCTZ type by composition modification and doping.

Blandine Fontaine

Les céramiques piézoélectriques sans plomb de formulation Ba0.85Ca0.15Ti0.90Zr0.10 (BCTZ) sont connus pour leurs propriétés piézoélectriques élevées. Cependant, leurs températures de Curie restent assez basses. Ainsi, cette étude se focalise sur l'optimisation des propriétés des céramiques par…, Lead-free piezoelectric ceramics with Ba0.85Ca0.15Ti0.90Zr0.10 composition (BCTZ) are known for their high piezoelectric properties. However, they present relatively low Curie temperatures. Thus, this study focuses on the optimization of ceramic properties by fine variations of calcium (0.13 < x…

Matériaux. Université Polytechnique Hauts-de-France, 2022. Français. ⟨NNT : 2022UPHF0033⟩. ⟨tel-04030568⟩

• Communication dans un congrès

Synthesis of a new composition of bioactive glass with improved properties

Halima El Bouami, Assia Mabrouk, Cyrille Albert-Mercier, Claudine Follet, Ahmed Bachar

III. INTERNATIONAL CONFERENCE ON GLOBAL PRACTICE OF MULTIDISCIPLINARY SCIENTIFIC STUDIES, Nov 2022, Cyprus, Turkey. ⟨hal-04318754⟩

• Article dans une revue

Performance of a dual piezoceramic cantilever for low frequency energy harvesting applications: modeling and experiment verification

Madiha Yessari, Najoua Fangachi, Imane Salhi, Mohamed Rguiti, Abdelowahed Hajjaji

Vibration-based energy harvesting is a growing field for generating low-power electricity to use in wireless electronic devices. These applications are usually in an environment of abundant low frequency vibration, which can be collected through an appropriate energy conversion structure. However,…

European Physical Journal: Applied Physics, 2022, 97, pp.78. ⟨10.1051/epjap/2022220105⟩. ⟨hal-04280930⟩

• Communication dans un congrès

Mise en forme complexe de céramiques par procédé hybride combinant projection sélective de liant et reprise laser

Enrique Juste, Qirong Chen, Marie Lasgorceix, Anne Leriche, Charles-Antoine Dutertre, Fabrice Petit

MATERIAUX 2022, Oct 2022, Lille, France. ⟨hal-04392050⟩

• Communication dans un congrès

Etude de la mise en forme de supports de catalyseurs à porosité hiérarchisée

Yannick Lorgouilloux, Rıdvan Yildiz, Jeremy Dhainaut, Jean-Philippe Dacquin, Sebastien Royer, Christian Courtois

Matériaux 2022, Oct 2022, Lille, France. ⟨hal-04291683⟩

• Communication dans un congrès

Elaboration de prothèses dentaires par fabrication additive indirecte combinant stéréolithographie et gel casting

Pierre Grimaud, Fabrice Petit, Laurent Boilet, Florian Jean, Marie Lasgorceix, Philippe Champagne, Anne Leriche, Pascal Laurent

MATERIAUX 2022, Oct 2022, Lille, France. ⟨hal-04392049⟩

• Poster de conférence

Synthèse et étude structurale du nouveau phosphate Ca2MgFe2(PO4)4,

Claudine Follet, Abderrazzak Assani, Mohamed Saadi, Cyrille Albert-Mercier, Lahcen El Ammari

Matériaux 2022, Oct 2022, Lille, France. ⟨hal-04318750⟩