Concept

Forme (géométrie)

Publications associées (161)

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Symmetrization

Mark Pauly

We present a symmetrization algorithm for geometric objects. Our algorithm enhances approximate symmetries of a model while minimally altering its shape. Symmetrizing deformations are formulated as an optimization process that couples the spatial domain wi ...

2007

Indentation fracture of gallium arsenide

Cédric Pouvreau

The scribe and break technique (or dicing) is a widely employed method in the industry of semiconductors to separate infrared laser diodes made from gallium arsenide (GaAs). The scribing step allows to create a precursor crack which is then propagated duri ...

EPFL2007

A 130nm CMOS Single Photon Avalanche Diode

Edoardo Charbon, Cristiano Niclass, Marek Gersbach

The first implementation of a single photon avalanche diode (SPAD) is reported in 130nm CMOS technology. The SPAD is fabricated as p+/nwell junction with octagonal shape. Premature edge breakdown is prevented through a guard ring of p-well around the p+ an ...

2007

A 130-nm CMOS single photon avalanche diode - art. no. 676606

Edoardo Charbon, Cristiano Niclass, Marek Gersbach

Spie-Int Soc Optical Engineering, Po Box 10, Bellingham, Wa 98227-0010 Usa2007

Numerical simulation of fluid added mass effect on a francis turbine runner

François Avellan, Mohamed Farhat, Eduard Egusquiza

In this paper, a numerical simulation to analyze the influence of the surrounding water in a turbine runner has been carried out using finite element method (FEM). First, the sensitivity of the FEM model on the element shape and mesh density has been analy ...

2007

A Single Photon Avalanche Diode Implemented in 130nm CMOS Technology

Edoardo Charbon, Cristiano Niclass, Marek Gersbach

We report on the ﬁrst implementation of a single photon avalanche diode (SPAD) in 130 nm complementary metal–oxide–semiconductor (CMOS) technology. The SPAD is fabricated as p+/n-well junction with octagonal shape. A guard ring of p-well around the p+ anod ...

2007

The diffusion of Radon Shape

Victor Panaretos

In 1977, D. G. Kendall [J. Appl. Probab. 28 (1991), no. 1, 225--230; MR1090460 (92f:60135)] considered diffusions of shape induced by independent Brownian motions in Euclidean space. In this paper, we consider a different class of diffusions of shape, indu ...

2006

Device for converting a first motion into a second motion responsive to said first motion under a demagnification scale

Simon Nessim Henein

The present invention discloses a device (CD) for converting a first motion (x s ) into a second motion ( y) responsive to said first movement (x s ) under a demagnification scale (i), comprising: a) an input portion (IP) being drivable in a rectilinear tr ...

European Patent Office2006

Surface parameterization and optimum design methodology for hydraulic turbines

This thesis presents a methodology for the design optimization of hydraulic runner blades. The originality of the methodology comes from the geometric definition of the blade shapes, which uses parametric surfaces instead of a set of profiles. The main adv ...

EPFL2006

On-chip extrusion of lipid vesicles and tubes through microsized apertures

Philippe Renaud

In this work we present the formation of micrometre-sized lipid vesicles and tubes with perfectly homogeneous diameter and extraordinary length. The method is a novel approach for unconventional fabrication of soft-matter microstructured devices based on t ...

2006