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Publications associées (26)

Saturation of curvature-induced secondary flow, energy losses, and turbulence in sharp open-channel bends: Laboratory experiments, analysis, and modeling

Koen Blanckaert

The paper investigates the influence of relative bend curvature on secondary flow, energy losses, and turbulence in sharp open-channel bends. These processes are important in natural streams with respect to sediment transport, the bathymetry and planimetry ...

2009

Polymer nanofibers via nozzle-free centrifugal spinning

Klaus Kern, Marko Burghard, Stephan Rauschenbach, Ralf Thomas Weitz

We report on the unexpected finding of nanoscale fibers with a diameter down to 25 nm that emerge from a polymer solution during a standard spin-coating process. The fiber formation relies upon the Raleigh-Taylor instability of the spin-coated liquid film ...

American Chemical Society (ACS)2008

On the coupling integrals arising in the method of moments formulation of laterally bounded structures

Juan Ramon Mosig, Ivica Stevanovic, Pedro Crespo Valero

A generic integral equation and method of moments formulation is presented for laterally bounded stratified media including planar metallization. The main asset of the developed approach is its flexibility, as it encompasses generic lateral boundary condit ...

Institute of Electrical and Electronics Engineers2008

Intrinsic, thermal and hygroscopic residual stresses in thin gas-barrier films on polymer substrates

Yves Leterrier, Grégory Tornare

Intrinsic, thermal, and hygroscopic contributions to the in-plane residual stress in silicon nitride films on polyimide substrates are identified, based on iso- hygric thermal ramps and isothermal relative humidity jumps, combined with non-linear elastic m ...

2007

White matter fiber tract segmentation in DT-MRI using geometric flows

Jean-Philippe Thiran, Patric Hagmann, Reto Meuli, Xavier Bresson, Olivier Cuisenaire, Lisa Jonasson

In this paper, we present a 3D geometric flow designed to segment the main core of fiber tracts in diffusion tensor magnetic resonance images. The fundamental assumption of our fiber segmentation technique is that adjacent voxels in a tract have similar pr ...

2005

Particle migration in a concentrated suspension flowing between rotating parallel plates: Investigation of diffusion flux coefficients

Etienne Pierre Lemaire

This paper reports an experimental and numerical study conducted to investigate the behavior of macroscopic monomodal concentrated suspensions (40%) undergoing a creeping torsional flow between two rotating plates. An experimental technique based on the de ...

2005

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