Publications associées à Diffusion de la matière

Structured sparsity for spatially coherent fibre orientation estimation in diffusion MRI

Jean-Philippe Thiran, Yves Wiaux, Alessandro Daducci, Anna Auria Rasclosa

We propose a novel formulation to solve the problem of intra-voxel reconstruction of the fibre orientation distribution function (FOD) in each voxel of the white matter of the brain from diffusion MRI data. The majority of the state-of-the-art methods in t ...

Elsevier2015

One-dimensional linear advection-diffusion equation: Analytical and finite element solutions

Michel Deville

In this paper, a time dependent one-dimensional linear advection-diffusion equation with Dirichlet homogeneous boundary conditions and an initial sine function is solved analytically by separation of variables and numerically by the finite element method. ...

Pergamon-Elsevier Science Ltd2015

MATHICSE Technical Report: Numerical homogenization method for parabolic advection-diffusion multiscale problems with large compressible flows

Assyr Abdulle, Martin Ernst Huber

We introduce a numerical homogenization method based on a discontinuous Galerkin finite element heterogeneous multiscale method (DG-HMM) to efficiently approximate the effective solution of parabolic advection-diffusion problems with rapidly varying coeffi ...

MATHICSE2015

High-resolution NMR of hydrogen in organic solids by DNP enhanced natural abundance deuterium spectroscopy

David Lyndon Emsley, Aaron James Rossini, Judith Schlagnitweit

We demonstrate that high field (9.4T) dynamic nuclear polarization (DNP) at cryogenic (similar to 100 K) sample temperatures enables the rapid acquisition of natural abundance H-1-H-2 cross-polarization magic angle spinning (CPMAS) solid-state NMR spectra ...

Academic Press Inc Elsevier Science2015

Finite element and finite volume-element simulation of pseudo-ECGs and cardiac alternans

Alfio Quarteroni, Ricardo Esteban Ruiz Baier

In this paper, we are interested in the spatio-temporal dynamics of the transmembrane potential in paced isotropic and anisotropic cardiac tissues. In particular, we observe a specific precursor of cardiac arrhythmias that is the presence of alternans in t ...

Wiley-Blackwell2015

To Share or Not to Share: Adjustment Dynamics in Sharing Markets

Thomas Alois Weber, Maryam Razeghian Jahromi

To aid in the description and estimation of the tremendous recent growth in the collaborative economy, we provide a model for the dynamic sharing, subject to ﬁxed costs. The sharing economy comprises a set of inﬁnitely lived, heterogeneous suppliers, who t ...

2015

Beer tapping: dynamics of bubbles after impact

François Gallaire, Pierre-Thomas Paul Brun, Vladislav Mantic Lugo

Beer tapping is a well known prank where a bottle of beer is impacted from the top by a solid object, usually another bottle, leading to a sudden foam overflow. A description of the shock-driven bubble dynamics leading to foaming is presented based on an e ...

Iop Publishing Ltd2015

Peritectic reaction on the Al-rich side of Al-Cr system

Michel Rappaz, Güven Kurtuldu

A long lasting controversy on the nature of the reaction between liquid, Al and Al45Cr7 has been ended by planar front solidification experiments of Al-Cr alloy in a Bridgman furnace. Cr depletion in the liquid ahead of the quenched planar interface proves ...

Elsevier2015

Analysis of Quantized Electrical Characteristics of Microscale TiO2 Ink-Jet Printed Memristor

Heinrich Hofmann, Marijana Mionic Ebersold, Goran Stojanovic

We demonstrate the ink-jet printed fabrication technique for TiO2-based memristor, followed by detailed analysis of electrical characteristics and development of a new model that considers observed phenomena of quantized conductance steps. The existence of ...

Institute of Electrical and Electronics Engineers2015

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Diffusion de la matière

Structured sparsity for spatially coherent fibre orientation estimation in diffusion MRI

One-dimensional linear advection-diffusion equation: Analytical and finite element solutions

MATHICSE Technical Report: Numerical homogenization method for parabolic advection-diffusion multiscale problems with large compressible flows

High-resolution NMR of hydrogen in organic solids by DNP enhanced natural abundance deuterium spectroscopy

Suprathermal ion transport in turbulent magnetized plasmas

Finite element and finite volume-element simulation of pseudo-ECGs and cardiac alternans

To Share or Not to Share: Adjustment Dynamics in Sharing Markets

Beer tapping: dynamics of bubbles after impact

Peritectic reaction on the Al-rich side of Al-Cr system

Analysis of Quantized Electrical Characteristics of Microscale TiO2 Ink-Jet Printed Memristor

Graph Chatbot

Chattez avec Graph Search

Beer tapping: dynamics of bubbles after impact

High-resolution NMR of hydrogen in organic solids by DNP enhanced natural abundance deuterium spectroscopy

Suprathermal ion transport in turbulent magnetized plasmas

Peritectic reaction on the Al-rich side of Al-Cr system

Finite element and finite volume-element simulation of pseudo-ECGs and cardiac alternans

Structured sparsity for spatially coherent fibre orientation estimation in diffusion MRI

One-dimensional linear advection-diffusion equation: Analytical and finite element solutions

MATHICSE Technical Report: Numerical homogenization method for parabolic advection-diffusion multiscale problems with large compressible flows

To Share or Not to Share: Adjustment Dynamics in Sharing Markets

Analysis of Quantized Electrical Characteristics of Microscale TiO2 Ink-Jet Printed Memristor