Publications related to Linear and non-linear studies of spurious backward-wave instabilities in a smooth-wall gyrotron beam duct

Applications of the Transfinite Map for Parametrized Domain Decomposition

A big challenge in the last few years is to perform simulations of cardiovascular systems. Since it would be too computational expensive and complicated to simulate an entire blood circuit, an idea is to use a Domain Decomposition (DD) technique and to spl ...

2012

Two-axis solar tracking accomplished through small lateral translations

High-concentration solar-power optics require precise two-axis tracking. The planar micro-optic solar concentrator uses a lenslet array over a planar waveguide with small reflective facets at the focal point of each lenslet to couple incident light into th ...

Optical Soc Amer2012

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

Experimental design of a diversion structure of granular debris flows

Fadi Hachem, Michel Studer

Many alpine torrents convey regularly debris flows of high destructive hazard. After several granular events observed in Bruchji?s torrent near the Blatten village in the Swiss Alps, it was decided to manage the risk of similar debris flows by designing an ...

Ed. Dittrich, Koll, Aeberle & Geisenhainer (eds)2010

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

Discovering structural regularity in 3D geometry

Mark Pauly

We introduce a computational framework for discovering regular or repeated geometric structures in 3D shapes. We describe and classify possible regular structures and present an effective algorithm for detecting such repeated geometric patterns in point- o ...

Association for Computing Machinery2008

Modelling pattern transfer in stencil lithography

Jürgen Brugger, Marc Antonius Friedrich van den Boogaart

The race to shrink feature sizes requires the limits of conventional lithography to be extended to high-throughput, low cost, reliable and well-controlled processes of which stencilling is a promising candidate for nanoscale applications. Identifying, pred ...

2006

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

Catalytic activity of FeZSM-5 zeolites in benzene hydroxylation by N2O: The role of geometry characterized by fractal dimensions

Lioubov Kiwi

The fractal dimensions of FeZSM-5 zeolites were used to characterize the change in their geometry depending on different post-synthesis treatments. The fractal dimension values were estimated from the Dubinin-Astakhov isotherms of nitrogen adsorption and r ...

2005

Functional, mechanical and geometrical adaptation of the arterial wall of a non-axisymmetric artery in vitro

Nikolaos Stergiopoulos, Paolo Silacci, Martin Zulliger

Vascular remodeling is an adaptive response to variations in the hemodynamic environment acting on the arterial wall. Remodeling translates into changes of structure, geometry and mechanical properties of the artery. Our aim was to study the remodeling res ...

2004

Linear and non-linear studies of spurious backward-wave instabilities in a smooth-wall gyrotron beam duct

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Applications of the Transfinite Map for Parametrized Domain Decomposition

Two-axis solar tracking accomplished through small lateral translations

Drawing with Nanostencils on Flexible Substrates

Experimental design of a diversion structure of granular debris flows

Differential geometry applied to crystallography

Discovering structural regularity in 3D geometry

Modelling pattern transfer in stencil lithography

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

Catalytic activity of FeZSM-5 zeolites in benzene hydroxylation by N2O: The role of geometry characterized by fractal dimensions

Functional, mechanical and geometrical adaptation of the arterial wall of a non-axisymmetric artery in vitro

Applications of the Transfinite Map for Parametrized Domain Decomposition

Drawing with Nanostencils on Flexible Substrates

Catalytic activity of FeZSM-5 zeolites in benzene hydroxylation by N2O: The role of geometry characterized by fractal dimensions

Differential geometry applied to crystallography

Two-axis solar tracking accomplished through small lateral translations

Discovering structural regularity in 3D geometry

Functional, mechanical and geometrical adaptation of the arterial wall of a non-axisymmetric artery in vitro

Experimental design of a diversion structure of granular debris flows

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

Modelling pattern transfer in stencil lithography