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Publications associées (354)

Friction based locomotion module for mobile MEMS robots

Reymond Clavel, Amar Rida, Jean-Marc Breguet, Walter Driesen

The “Modulated Friction Inertial Drive (MFID) principle” is presented as a locomotion solution for mmsize micro robots dealing with both size constraints and limitations in terms of power consumption. Based on one of the configurations of this locomotion p ...

2007

Outcome evaluation in shoulder surgery using 3D kinematics sensors

Kamiar Aminian, Alain Farron, Brian Coley

A new method of scoring systems for the functional assessment of the shoulder is presented. 3D accelerometers and gyroscopes attached on the humerus were used to differentiate a healthy from a painful shoulder. The method was first tested on 10 healthy vol ...

2007

ELM-wall interaction on JET and ITER

Richard Pitts

Significant interaction of ELM filaments with the vessel wall is now observed on JET by several diagnostics. To interpret the experimental data, a model of ELM-filament evolution was developed, with the radial velocity taken from experiment and the decay o ...

2007

Velocity Scheduling Controller for a Nonholonomic Mobile Robot

Dominique Bonvin, Philippe Müllhaupt, Davide Buccieri

An improvement over classical dynamic feedback linearization for the control of a nonholonomic mobile robot is proposed. The use of a state extension of higher dimension than in the case of dynamic feedback linearization helps reject constant disturbances ...

2006

Numerical Simulation and Analysis of Swirling Flow in the Draft Tube Cone of a Francis Turbine

François Avellan

The paper presents numerical investigations of decelerated swirling flows specific to hydraulic turbines draft tube cone, within the framework of axisymmetric flow models. First, we investigate the behaviour of a Burgers vortex in a diffuser as the swirl i ...

International Association For Hydraulic Research2006

Direct numerical simulation in a lid-driven cavity at high Reynolds number by a Chebyshev spectral method

Emmanuel Leriche

Direct numerical simulation of the flow in a lid-driven cubicalcavity has been carried out at high Reynolds numbers (based on the maximum velocity on the lid), between 12'000 and 22'000. An efficient Chebyshev spectral method has been implemented for the s ...

2006

Direct Numerical Simulation in a Lid-Driven Cubical Cavity at High Reynolds Number by a Chebyshev Spectral Method

Emmanuel Leriche

Springer, Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com2006

Novel locomotion principle for mobile micro robots

Reymond Clavel, Jean-Marc Breguet, Walter Driesen

This paper presents a novel locomotion concept for mobile micro robots: the “friction drive principle”. It allows for easy miniaturization and high velocities for low power consumption and simple onboard electronics. A prototype (Ø20 mm × 7.5 mm) with two ...

2006

Slow, superluminal and negative group velocity in optical fibres using stimulated Brillouin scattering

Luc Thévenaz

Active control of the group velocity in optical fibres is demonstrated, allowing long delays, faster-than-light propagation and even negative velocity, for which the peak of a pulse exits the fibre before entering the input end ...

IEE2005

Metaphoric optical computing for fluid dynamics

Demetri Psaltis

We show that an optical pulse inherently computes three-dimensional classical fluid dynamics. Taking optical diffraction, dispersion and nonlinearity into account, one can define the metaphoric fluid density, velocity and vorticity in the optical pulse. We ...

2005

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