Concept

Isotropie

Publications associées (46)

Impact of deepwater mixing on hypoxia in Lake Geneva

Alfred Johny Wüest, Damien Bouffard, Robert Vincent Schwefel

Lake Geneva is recovering from its eutrophic past but no significant trend in the areal hypolimnetic oxygen depletion rate has been observed over the last 30 years. Due to the large depth of 309 m, the lake is not mixed completely every winter which can le ...

2015

Transparent Organic Photodetector using a Near-Infrared Absorbing Cyanine Dye

Roland Hany, Hui Zhang

Organic photodetectors are interesting for low cost, large area optical sensing applications. Combining organic semiconductors with discrete absorption bands outside the visible wavelength range with transparent and conductive electrodes allows for the fab ...

Nature Publishing Group2015

Fiber distribution in a 3D FEM Model of the Supraspinatus Tendon

Romy Alexandra Hasler

The supraspinatus tendon is often involved in rotator cu↵ tears. The pathogenesis of such tears is not well known and can be multicausal (mechanical, inflammatory, ...). The idea of this project was to analyse the mechanical contribution to rotator cuff te ...

2014

Effects of rock mass anisotropy on deformations and stresses around tunnels during excavation

Anton Schleiss

rock mass where the in situ state of stress is uniform. The rock mass was assumed to behave elastically and two cases were examined: whether the rock mass has an isotropic elastic property or not. A two-dimensional plain strain elastic-plastic Jointed Rock ...

2014

Planck 2013 results. XXVI. Background geometry and topology of the Universe

Julien Lesgourgues, Jason Douglas McEwen, Fabio Finelli

The new cosmic microwave background (CMB) temperature maps from Planck provide the highest-quality full-sky view of the surface of last scattering available to date. This allows us to detect possible departures from the standard model of a globally homogen ...

Edp Sciences S A2014

Anisotropic mechanical behavior and formability criterion for zinc sheets

Roland Logé

The mechanical behavior of zinc has been studied and linked to the formability of sheets. An anisotropic elastic-viscoplastic behavior law has been developed to take into account the anisotropy of the material. Anisotropy is induced by crystallographic and ...

Elsevier Science Sa2014

Constitutive analysis of the mechanical anisotropy of Opalinus Clay

Lyesse Laloui, Bertrand François, Mathieu Nuth, Simon Salager

This paper aims to analyse the anisotropic features of behaviour of Opalinus Clay using the theory of plastic multi-mechanisms. The results of triaxial tests conducted with different load levels and directions showed that the mechanical behaviour of this s ...

Springer Verlag2013

Invariant frames for vector bundles and applications

Tudor Ratiu, Madeleine Jotz

This paper completes a proof of the Dirac reduction theorem by involutive tangent subbundles. As a consequence, Dirac reduction by a proper Lie group action having one isotropy type is carried out. The main technical tool in the proof is the notion of part ...

Springer Verlag2012

Role of elastin anisotropy in structural strain energy functions of arterial tissue

Nikolaos Stergiopoulos, Edouard Fonck

The vascular wall exhibits nonlinear anisotropic mechanical properties. The identification of a strain energy function (SEF) is the preferred method to describe its complex nonlinear elastic properties. Earlier constituent-based SEF models, where elastin i ...

Springer-Verlag2011

Stochastic spectral Galerkin and collocation methods for PDEs with random coefficients: a numerical comparison

Fabio Nobile, Lorenzo Tamellini

Much attention has recently been devoted to the development of Stochastic Galerkin (SG) and Stochastic Collocation (SC) methods for uncertainty quantification. An open and relevant research topic is the comparison of these two methods. By introducing a sui ...

Springer2011

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