Publications related to Curvature-induced symmetry breaking determines elastic surface patterns

Drawing with Nanostencils on Flexible Substrates

Jürgen Brugger, Andreea Veronica Savu, Oliver Peric

Nanostencils are used in dynamic mode to pattern on top of flexible substrates. As the stencil is moving during the material evaporation, the obtained structures are the convolution between the stencil trajectory and the apertures’ geometry. Variable-thick ...

2011

Multipactor prediction in Multi-carrier Systems

Michael Mattes

This communication reports the status of the activity corresponding to the ESTEC contract ”RF Breakdown in Multicarrier Systems” (19918/06/NL/GLC/RF). The main objective of this activity is to propose alternatives to the 20-gap-crossing rule for multipacto ...

2011

Study of an octahedral antenna for both sound pressure level estimation and 3D localization of multiple sources

Hervé Lissek, Xavier Falourd, Patrick Marmaroli

This study deals with localization and characterization of multiple sources by mean of an octahedral array processing. We show how correlations enable to both localize more sources that the number of sensors and estimate their sound level pressure simultan ...

2010

FEM-based prediction of workpiece transient temperature distribution and deformations during milling

Paul Xirouchakis, Jitender Kumar Rai

In high-speed dry milling of thin-walled parts, the cutter-workpiece temperature rises asymptotically with cutting speed, causing excessive cutter tooth wear and workpiece thermal expansion, which in turn reduces the cutter life and produces dimensional an ...

Springer-Verlag2009

Differential geometry applied to crystallography

Philippe Kocian

The mathematical facet of modern crystallography is essentially based on analytical geometry, linear algebra as well as group theory. This study endeavours to approach the geometry and symmetry of crystals using the tools furnished by differential geometry ...

EPFL2009

Overactuated systems coordination

Yvan Michellod

The economic growth inherent to our nowadays society pushes the industries toward better performances. In the mechatronic context, the increasing competition results in more and more stringent specifications. Thus, the multiple objectives to track become h ...

EPFL2009

A landscape genomics approach to understanding and predicting species distribution

Stéphane Joost

In habitat modelling, an initial step is to define geoenvironmental variables to be included in a predictive model. According to Guisan and Zimmermann (2000), the selection of predictors can be made either arbitrarily, automatically by stepwise procedures, ...

2008

Simulation of the microstructural evolution during liquid phase sintering using a geometrical Monte Carlo model

Aitor Luque Gomez

The present paper proposes a Monte Carlo model to simulate the evolution of the microstructure during liquid phase sintering. The model mainly assumes that the system temperature is constant and that the composition of the liquid phase is completely homoge ...

2005

Analytical modeling of the apparent d(33) piezoelectric coefficient determined by the direct quasistatic method for different boundary conditions

Nava Setter, Dragan Damjanovic

The longitudinal piezoelectric coefficient d(33) measured by the quasistatic (Berlincourt-type) method is strongly dependent on the sample aspect ratio (thickness/lateral dimension) and the type of contacts used to collect the charge and apply the pressure ...

2005

Laplacian Operator, Diffusion Flow and Active Contour on non-Euclidean Images

Jean-Philippe Thiran, Pierre Vandergheynst, Xavier Bresson, Iva Bogdanova Vandergheynst

We propose here some basic approaches to direct processing of the

360^o

-images as we take into consideration the geometry of each one. Obviously, the geometry of each of these images is a consequence of the geometry of the sensor's mirror used. This tech ...

2005

Curvature-induced symmetry breaking determines elastic surface patterns

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Drawing with Nanostencils on Flexible Substrates

Multipactor prediction in Multi-carrier Systems

Study of an octahedral antenna for both sound pressure level estimation and 3D localization of multiple sources

FEM-based prediction of workpiece transient temperature distribution and deformations during milling

Differential geometry applied to crystallography

Overactuated systems coordination

A landscape genomics approach to understanding and predicting species distribution

Simulation of the microstructural evolution during liquid phase sintering using a geometrical Monte Carlo model

Analytical modeling of the apparent d(33) piezoelectric coefficient determined by the direct quasistatic method for different boundary conditions

Laplacian Operator, Diffusion Flow and Active Contour on non-Euclidean Images

Differential geometry applied to crystallography

Simulation of the microstructural evolution during liquid phase sintering using a geometrical Monte Carlo model

Laplacian Operator, Diffusion Flow and Active Contour on non-Euclidean Images

Overactuated systems coordination

A landscape genomics approach to understanding and predicting species distribution

Analytical modeling of the apparent d(33) piezoelectric coefficient determined by the direct quasistatic method for different boundary conditions

Study of an octahedral antenna for both sound pressure level estimation and 3D localization of multiple sources

Multipactor prediction in Multi-carrier Systems

FEM-based prediction of workpiece transient temperature distribution and deformations during milling

Drawing with Nanostencils on Flexible Substrates