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Article dans une revue

Existence and percolation results for stopped germ-grain models with unbounded velocities

David Coupier, David Dereudre, Simon Le Stum

We investigate the existence and first percolation properties of general stopped germ-grain models. They are defined via a random set of germs generated by a homogeneous planar Poisson point process in R2. From each germ, a grain, composed of a random number of branches, grows. This grain stops…

Stochastic Processes and their Applications, 2021, 142, pp.549-579. ⟨10.1016/j.spa.2021.08.008⟩. ⟨hal-04396369⟩

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Investigation of aluminum nitrate as a set retarder of magnesium potassium phosphate cement: Mechanisms involved in diluted suspension

Céline Cau Dit Coumes, Angélique Rousselet, Biwan Xu, Cyrille Albert-Mercier, sandrine Gauffinet

In this study, the influence of aluminum nitrate on the hydration process of magnesium potassium phosphate (MKP) cement was investigated experimentally and through thermodynamic modelling using diluted systems with Mg/PO$_4$ molar ratio and water-to-cement ratio of 1 and 100 respectively. Three…

Cement and Concrete Research, 2021, 150, pp.106608. ⟨10.1016/j.cemconres.2021.106608⟩. ⟨hal-04280341⟩

Article dans une revue

Subdivisions of Ring Dupin Cyclides Using Bézier Curves with Mass Points

Lionel Garnier, Lucie Druoton, Jean-Paul Becar, Laurent Fuchs, Géraldine Morin

The paper deals in the Computer-Aided Design or Computer-Aided Manufacturing domain with the Dupin cyclides as well as the Bézier curves. It shows that the same algorithms can be used either for subdivisions of ring Dupin cyclides or Bézier curves. The Bézier curves are described with mass points…

WSEAS Transactions on Mathematics, 2021, 20, pp.581-597. ⟨10.37394/23206.2021.20.62⟩. ⟨hal-03521704⟩

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Influence of cetyltrimethylammonium bromide and hydroxide ions on the interfacial tension and stability of emulsions of dodecane in aqueous silicate solutions

Matthieu Bertin, Donatien Gomes Rodrigues, Christel Pierlot, Cyrille Albert-Mercier, Catherine Davy, David Lambertin, Véronique Rataj

This manuscript provides an understanding of the emulsification mechanisms of a model alkane (dodecane) in concentrated aqueous sodium silicate solutions, for e.g. formulating alkane/geopolymer composites for varied applications. To this purpose, we assume that silicate oligomers stabilize the…

Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2021, Colloids and Surfaces A: Physicochemical and Engineering Aspects, 628, 11 p. ⟨10.1016/j.colsurfa.2021.127306⟩. ⟨hal-04094024⟩

Article dans une revue

A User-Oriented Local Coastal Flooding Early Warning System Using Metamodelling Techniques

Déborah Idier, Axel Aurouet, François Bachoc, Audrey Baills, José Daniel Betancourt, Fabrice Gamboa, Thierry Klein, Andrés F. López-Lopera, Rodrigo Pedreros, Jérémy Rohmer, Alexandre Thibault

Given recent scientific advances, coastal flooding events can be properly modelled. Nevertheless, such models are computationally expensive (requiring many hours), which prevents their use for forecasting and warning. In addition, there is a gap between the model outputs and information actually…

Journal of Marine Science and Engineering, 2021, pp.1191. ⟨10.3390/jmse9111191⟩. ⟨hal-03406179v2⟩

Article dans une revue

Stability properties of dissipative evolution equations with nonautonomous and nonlinear damping

Serge Nicaise

In this paper, we obtain some stability results of (abstract) dissipative evolution equations with a nonautonomous and nonlinear damping using the exponential stability of the retrograde problem with a linear and autonomous feedback and a comparison principle. We then illustrate our abstract…

Rendiconti di Matematica e delle sue Applicazioni, 2021, 43 (1), pp.61-102. ⟨10.48550/arXiv.2110.11122⟩. ⟨hal-03390085⟩

Article dans une revue

Mechanical modelling of microwave sintering and experimental validation on an alumina powder

Maxence Renaux, Damien Méresse, Julien Pellé, Anthony Thuault, Céline Morin, Christelle Nivot, Christian Courtois

Microwave sintering (MW) allows fast heating (≤30 min) and densification of ceramic materials, like alumina Al2O3. In order to predict the final material properties (density, size and grain size) the mechanical SOVS (Skorohold Olevsky Viscous Sintering) model is adapted and validated for…

Journal of the European Ceramic Society, 2021, 41 (13), pp.6617-6625. ⟨10.1016/j.jeurceramsoc.2021.06.013⟩. ⟨hal-03442866⟩

Article dans une revue

From Metal-Organic Framework Powders to Shaped Solids: Recent Developments and Challenges

Bakytzhan Yeskendir, Jean-Philippe Dacquin, Yannick Lorgouilloux, Christian Courtois, Sébastien Royer, Jérémy Dhainaut

Metal-organic frameworks represent a class of porous materials which developed considerably over the past few years. Their highly porous structure makes them outperforming conventional adsorbents in hot topics such as dihydrogen and methane storage, and carbon dioxide capture. Their consequent…

Materials Advances, 2021, Materials Advances, ⟨10.1039/d1ma00630d⟩. ⟨hal-03373024⟩

Article dans une revue

Development of calcium phosphate suspensions suitable for the stereolithography process

Chloé Goutagny, Stéphane Hocquet, Dominique Hautcoeur, Marie Lasgorceix, Nicolas Somers, Anne Leriche

With the median age of the population steadily rising, the rate of bone disorders increases as well, making the need of bone implants more and more urgent in our society. However, manufacturing of synthetic bioimplants requires high flexibility of the process and materials with sufficient…

Open Ceramics, 2021, 7, 11 p. ⟨10.1016/j.oceram.2021.100167⟩. ⟨hal-03889971⟩

Article dans une revue

Influence of a macroporous β-TCP structure on human mesenchymal stem cell proliferation and differentiation in vitro

Shaan Chamary, Liliana Grenho, Maria Helena Fernandes, Franck Bouchart, Fernando Jorge Monteiro, Jean-Christophe Hornez

This work aims at studying the links between a porous scaffold in β-TCP and its impact on cell differentiation and proliferation in vitro. β-TCP was synthesized by aqueous precipitation. The shaping methods were chosen for their ability to generate original structures with the potential to…

Open Ceramics, 2021, 7, 13 p. ⟨10.1016/j.oceram.2021.100141⟩. ⟨hal-04279666⟩