Concept

Frontière maritime

Publications associées (12)

Waves at a fluid-solid interface: Explicit versus implicit formulation of boundary conditions using a discontinuous Galerkin method

An accurate solution of the wave equation at a fluid-solid interface requires a correct implementation of the boundary condition. Boundary conditions at acousto-elastic interface require continuity of the normal component of particle velocity and traction, ...

2019

A New Look at Civic Design: Park Systems in America

Matthew Skjonsberg

A New Look at Civic Design reflects on the nature of the various crises facing the very idea of democracy today, explicitly in relation to climate change - namely mass extinctions, water scarcity and overabundance, and in general widespread and increasing ...

EPFL2018

L'oeuvre de Leandro V. Locsin (1928-1994), architecte à la recherche de l'identité élusive de l'architecture philippine du second après-guerre

Jean-Claude Girard

Filipino architect Leandro Valencia Locsin (Silay1928 - Makati 1994) produced an architectural work that involved 250 projects, of which at least more than half were completed and mostly in his country of origin. A graduate in architecture of San Tomas de ...

EPFL2018

Island Interfaces: Insularity, Distance, and Proximity

Jérôme Chenal, Diego Alejandro Marcelo Mermoud

The main common point between insular territories is a limited amount of land. This might seem obvious or irrelevant because it concerns a large majority of states. However this ‘physical’ boundary defined by nature causes certain impacts: first of all a c ...

2017

Crise et gouvernance

Abigaïl-Laure Sarah Irène Kern

On January 12 2010, Haiti was hit by an earthquake of 7.2 on the Richter scale. Close to 220,000 persons died, more than 300,000 were wounded and almost two other million were displaced. The earthquake¿s epicenter was actually several kilometers away the c ...

EPFL2017

Revisiting the Generality of the Rank-based Human Mobility Model

Daniel Gatica-Perez, Darshan Santani

Location-based social networks, in addition to revealing users' online social network, also informs users' actual movements in the offline physical world. Due to this, they have recently been used in large-scale mobility and urban studies. In this paper, u ...

2013

Electronic states of moiré modulated Cu films

Harald Brune, Stefano Rusponi, Anne Lehnert

We examined by low-energy electron diffraction and scanning tunneling microscopy the surface of thin Cu films on Pt(111). The Cu/Pt lattice mismatch induces a moire modulation for films from 3 to about 10 ML thickness. We used angle-resolved photoemission ...

Iop Publishing Ltd2012

Fabrication of Fresnel zone plates for hard X-rays

Christian David

A method to fabricate gold structures with high aspect ratio is presented. Fresnel zone plates with an outermost zone width of 100nm and structures of 1μm height are fabricated. Preliminary focusing results at an X-ray energy of 8keV are presented and ways ...

2007

Nanometer focusing properties of Fresnel zone plates described by dynamical diffraction theory

Christian David

The x-ray focusing properties of linear Fresnel zone plates have been derived by solving the Helmholtz equation for the field propagating through the zones. We consider the imaging of a point object into the first diffraction order of a volume zone plate h ...

2006

Permalloy thin films exchange coupled to arrays of cobalt islands

Jürgen Brugger, Marc Antonius Friedrich van den Boogaart

Periodic arrays of elongated cobalt islands exchange coupled to continuous Permalloy thin films were fabricated using silicon nitride stencil masks and the magnetic spin configurations during magnetization reversal were studied with photoemission electron ...

2006

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