Défense de thèse

The coastal ocean, covering a mere 8% of Earth's surface and 0.2% of the global ocean volume, plays a pivotal role in human activities and is thus crucial for study. These domains have to deal with large aspect ratio domains where the horizontal length scales can reach several thousands of kilometers while the depth is generally of the order of one kilometer or smaller.

Press hardenable steels (PHS) coated with Al-Si alloy are widely used in the automotive industry owing to their good mechanical properties (YS > 1200 MPa and TS > 1500 MPa). The presence of Al-Si coating prevents oxidation and decarburization of steel during austenitization. It has been found that aluminized PHS are more sensitive to hydrogen absorption during austenitization in comparison to uncoated PHS.

Le Recteur de l'Université catholique de Louvain fait savoir que

Juliette Woitchik

soutiendra publiquement sa dissertation pour l'obtention du grade de Doctorat en sciences politiques et sociales

Fragments d’un fleuve : Étude anthropologique des relations au Rio Doce à Regência, après la rupture du barrage minier du Fundão (2015), Brésil

Résumé

In recent years, the size of offshore wind turbines has grown significantly. While this increases the power that can be harnessed from the wind, it also increases the flexibility of the blades, which can lead to aero-elastic effects. In this thesis, the aero-elastic effects occurring on large modern wind turbines are investigated using numerical simulations.  For this purpose, a coupling between a flow solver and a structural solver is developed.

In the context of the energy transition, biomass represents a pivotal player for a sustainable future. This thesis delves into the multifaceted role of biomass, exploring its potential, its final uses and the challenges it faces in shaping a sustainable energy landscape. The work acknowledges the complexity surrounding biomass for energy and aims to provide a nuanced and comprehensive discussion to understand its place in the transition.

Sustainable Entrepreneurship Hybridity
Exploring the Influence of Logics and Motivations

Le Recteur de l'Université catholique de Louvain fait savoir que

Marion Richard

soutiendra publiquement sa dissertation pour l'obtention du grade de Doctorat en sciences économiques et de gestion

Essais sur les conflits et inégalités spatiales au Sahel

Abstract

This dissertation draws from the Sahelian context and uses tools of spatial analysis to study the impacts and determinants of civil conflict, as well as historical roots of inequalities in human capital and development outcomes.

Résumé

Depuis des siècles, les barrages permettent de gérer les ressources en eau à des fins de production et de protection contre les aléas climatiques. Néanmoins, la construction et le fonctionnement des barrages ont des impacts socio-écologiques non négligeables à l'amont, comme à l'aval des barrages. En particulier, ces ouvrages viennent perturber la continuité sédimentaire des rivières. A l'amont, cette perturbation se manifeste principalement à travers la sédimentation du réservoir, qui en réduit progressivement la capacité.

Le Recteur de l'Université catholique de Louvain fait savoir que

Jérémy Dieudonné

soutiendra publiquement sa dissertation pour l'obtention du titre de Doctorat en sciences politiques et sociales

“The Pro-Israel Equation: Understanding the American Antagonistic Identification of Iran”

Abstract

This study introduces an unsteady panel method designed to solve potential flows around rigid airfoils and self-propelling eel-like bodies exhibiting undulatory swimming motion. The flow model represents the boundary-layer as an infinitesimally thin vortex sheet on the body surface, detaching only at the wedged trailing-edge of the body in the form of point vorticity. This shed vorticity forms a wake which interacts with the body and is transported by the flow.