Publications

• Pré-publication, Document de travail

On the Quenched Functional Central Limit Theorem for Stationary Random Fields under Projective Criteria, Sur le TCL "Quenched" pour des champs stationnaires de variables aléatoires satisfaisant à une condition projective

Lucas Reding, Na Zhang

In this work we study and establish some quenched functional Central Limit Theorems (CLTs) for stationary random fields under a projective criteria. These results are functional generalizations of the theorems obtained by Zhang et al. (2020) and of the quenched functional CLTs for ortho-martingales…

2024. ⟨hal-03246736v3⟩

• Chapitre d'ouvrage

Perovskite Progress: the Role of Sr-Doping in Advancing BaTiO3-Based Technologies

Hicham Kacimi-Naciri, Mohamed Rguiti, Assia Mabrouk, Mohamed Aymen Ben Achour, Yannick Lorgouilloux, Christian Courtois, Nadia Faska, Ahmed Bachar

The incorporation of strontium into Ba1-xSrxTiO3 compounds has a significant impact on their structural, electronic, optical, and mechanical properties. This study presents an analysis based on first principles calculations using density functional theory (DFT) to study the effects of strontium…

Innovative Materials for Environmental and Aerospace Applications, 2024. ⟨hal-05583299⟩

• Communication dans un congrès

Additive manufacturing preparation of catalyst supports for the conversion of biosourced molecules

Meryem Mounaj, Yannick Lorgouilloux, Florian Jean, Jérémy Dhainaut, Christian Courtois

yCAM 2024, May 2024, Tampere, Finland. ⟨hal-05537605⟩

• Pré-publication, Document de travail

Asymptotic analysis for covariance parameter estimation of Gaussian processes with functional inputs

Lucas Reding, Andrés F. López-Lopera, François Bachoc

We consider covariance parameter estimation for Gaussian processes with functional inputs. From an increasing-domain asymptotics perspective, we prove the asymptotic consistency and normality of the maximum likelihood estimator. We extend these theoretical guarantees to encompass scenarios…

2024. ⟨hal-04559892v2⟩

• Article dans une revue

Engineering Precise Interconnected Porosity in β-Tricalcium Phosphate (β-TCP) Matrices by Means of Top-Down Digital Light Processing.

Thomas Wojcik, Feng Chai, V. Hornez, Gwénaël Raoul, Jean-Christophe Hornez

This study evaluated the biocompatibility and accuracy of 3D-printed β-tricalcium phosphate (β-TCP) pure ceramic scaffolds. A specific shaping process associating a digital light processing (DLP) 3D printer and a heat treatment was developed to produce pure β-TCP scaffolds leaving no polymer binder…

Biomedicines, 2024, Biomedicines, 12 (4), pp.736. ⟨10.3390/biomedicines12040736⟩. ⟨hal-04591735⟩

• Communication dans un congrès

Courbes de Bézier à points massiques et à masses complexes pour la modélisation de lettres cursives

Lionel Garnier, Jean-Paul Bécar

<div><p>Cet article présente les nombres complexes massiques qui sont les complexes usuels auxquels nous ajoutons un poids complexe ω. Si ce dernier est nul, nous obtenons des vecteurs, sinon, nous obtenons un point muni du poids ω. Ces nombres complexes massiques sont ensuite des…

G.T.M.G. 2024, Mar 2024, Marseille, France. ⟨hal-04922187⟩

• Article dans une revue

A Python Toolbox for Data-Driven Aerodynamic Modeling Using Sparse Gaussian Processes, Une boîte à outils Python pour la modélisation aérodynamique basée sur les données à l'aide de processus gaussiens creux

Hugo Valayer, Nathalie Bartoli, Mauricio Castaño-Aguirre, Rémi Lafage, Thierry Lefebvre, Andrés López-Lopera, Sylvain Mouton

In aerodynamics, characterizing the aerodynamic behavior of aircraft typically requires a large number of observation data points. Real experiments can generate thousands of data points with suitable accuracy, but they are time-consuming and resource-intensive. Consequently, conducting real…

Aerospace, 2024, 11 (4), pp.260. ⟨10.3390/aerospace11040260⟩. ⟨hal-04673602⟩

• Poster de conférence

Challenges in the synthesis &amp; optical characterization of 2D ferroelectric Ba0.85Ca0.15Ti0.9Zr0.1O3 by RF sputtering

Yusuf K Bostan, Florian Jean, Denis Remiens, Jing Hua Teng, El Hadj Dogheche

Ferroelectric materials, such as BaTiO₃ and (Ba,Ca)(Ti,Zr)O₃ (BCTZ), are essential in modern technology, thanks to their permanent electrical dipoles and unique properties like piezoelectricity. These lead-free perovskites are especially valuable, offering tunability for advanced applications such…

Mardi des Chercheurs, Mar 2024, Mons, Belgium. 2024. ⟨hal-04622518⟩

• Poster de conférence

The Nonlinear Schrödinger Equation on Metric Graphs

Colette De Coster, Simone Dovetta, Damien Galant, Enrico Serra, Christophe Troestler

Mardi des chercheurs 2024, Mar 2024, Mons, Belgium. ⟨hal-04550177⟩

• Poster de conférence

Elaboration et optimisation par simulation de matériaux piézoélectriques sans plomb pour des applications capteurs et transducteurs ultrasonores

Hicham Kacimi-Naciri, Ahmed Bachar, Christian Courtois, Mohamed Rguiti

<div><p>Ce travail de thèse vise à améliorer les propriétés de céramiques sans plomb en utilisant des simulations théoriques pour optimiser les paramètres clés. En se concentrant sur les matériaux BCTZ, KNN et BNT, cette méthode permet de trouver les compositions idéales avant leur…

Mardi des chercheurs, Mar 2024, MONS, Belgique. ⟨hal-05583555⟩