Publicaciones

• Article dans une revue

On the square-root approximation finite volume scheme for nonlinear drift-diffusion equations

Clément Cancès, Juliette Venel

We study a finite volume scheme for the approximation of the solution to convection diffusion equations with nonlinear convection and Robin boundary conditions. The scheme builds on the interpretation of such a continuous equation as the hydrodynamic limit of some simple exclusion jump process. We...

Comptes Rendus. Mathématique, 2023, 361, pp.535--558. ⟨10.5802/crmath.421⟩. ⟨hal-03693887v3⟩

• Article dans une revue

Humidity sensing properties of (Na0.5Bi0.5)0.94Ba0.06 TiO3 lead-free ferroelectrics ceramics

Sadia Kennour, Nouara Lamrani, Ahcène Chaouchi, Yannick Lorgouilloux, Mohamed Rguiti, Christian Courtois

In this study, the humidity detection properties of the ceramic with composition (Na0.5Bi0.5)0.94Ba0.06TiO3, noted (NBT-06BT), were investigated. The NBT-06BT ceramic was synthesized by the semi-solid method and characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The...

Science of Sintering, 2023, 55 (3), pp.339-351. ⟨10.2298/SOS221014015K⟩. ⟨hal-04279102⟩

• Article dans une revue

Diagnostic checking in FARIMA models with uncorrelated but non-independent error terms

Yacouba Boubacar Maïnassara, Youssef Esstafa, Bruno Saussereau

Electronic Journal of Statistics , 2023, 17 (1), ⟨10.1214/23-EJS2125⟩. ⟨hal-05531020⟩

• Rapport

Thermodynamically consistent modelling of the corrosion of iron in the context of deep subsurface nuclear waste repositories

Clément Cancès, Claire Chainais-Hillairet, Benoît Merlet, Federica Raimondi, Juliette Venel

Corrosion occurring in subsurface nuclear waste repositories yields the production of dihydrogen (H2), the possible accumulation of which being a major security concern. The development of accurate and theoretically assessed mathematical and numerical models is therefore a priority to quantify the...

EURAD joint program. 2023. ⟨hal-04210782⟩

• Article dans une revue

Frequency and load effects on rectifier bridges and active circuits on mechanical energy harvested using piezoelectric materials

Youssef El Hmamsy, Chouaib Ennawaoui, Abdelowahed Hajjaji, El Mehdi Laadissi, El Mehdi Loualid, Mohamed Aymen Ben Achour, Oussama Laayati, Ahmed Chebak

Today, with the worldwide surge in the price of oil, the energy issue has become an important topic and the possibility of exploiting ambient energy is receiving renewed attention. Thus in this study, we are interested in the devices of recovery of piezoelectric energy of vibration whose final...

International Journal of Renewable Energy Research, 2023, 13 (2), ⟨10.20508/ijrer.v13i2.13850.g8759⟩. ⟨hal-04491987⟩

• Article dans une revue

Energy decay of some boundary coupled systems involving wave\ Euler-Bernoulli beam with one locally singular fractional Kelvin-Voigt damping

Mohammad Akil, Ibtissam Issa, Ali Wehbe

In this paper, we investigate the energy decay of hyperbolic systems of wave-wave, wave-Euler-Bernoulli beam and beam-beam types. The two equations are coupled through boundary connection with only one localized non-smooth fractional Kelvin-Voigt damping. First, we reformulate each system into an...

Mathematical Control and Related Fields, 2023, 13 (1), pp.330-381. ⟨10.3934/mcrf.2021059⟩. ⟨hal-04347023⟩

• Communication dans un congrès

Properties of bioactive glass for medical application

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

2nd NANOSMAT Mediterranean 2022, Dec 2022, Ait Melloul, Morocco. ⟨hal-04318759⟩

• Communication dans un congrès

Fabrication of macroporous structures in alumina and beta-TCP by Robocasting

Nicolas Preux, Cathy Delmotte, Nicolas Somers, Florian Jean, Marie Lasgorceix, Anne Leriche, Jean-Pierre Erauw, Fabrice Petit

BCERS 2022, Dec 2022, Mons, Belgium. ⟨hal-04392669⟩

• Article dans une revue

Evaluation of shear piezoelectric coefficients by a bimorph cantilever technique for extruded and oriented poly( l ‐lactide) films

Mohamed Aymen Ben Achour, Cédric Samuel, Mohamed Rguiti, Sophie Barrau, Christian Courtois, Marie‐france Lacrampe

Uniaxially stretched poly(l-lactide) (US-PLA) films display shear piezoelectric properties of interests for smart applications. However, the measurement of these properties is quite challenging and a simple technique based on bimorph cantilevers is here used. This technique is validated with...

• Communication dans un congrès

Legendre Polynomial Approach for Multimodal Analysis of the Transverse-Type Rectangular Piezoelectric Transformer with Common Ground Electrodes

Joli Randrianarivelo, Faniry Emilson Ratolojanahary, Mohamed Rguiti, Derandraibe Jeannot Falimiaramanana

A Legendre polynomial approach (PA) is proposed to forecast a thin film of transverse-type rectangular piezoelectric transformer (PT) performance with common ground electrodes located on its whole bottom surface, fabricated from a PZT5A (lead zirconate titanate) ceramic material. Based on the...

2nd International Conference on Applied Mathematics, Modeling and Computer Simulation, AMMCS 2022, Aug 2022, Wuhan, China. pp.893-899, ⟨10.3233/ATDE221111⟩. ⟨hal-04489843⟩