Publications associées à Yield stress modelling of doped alumina suspensions for applications in freeze granulation: towards dry pressed transparent ceramics

Wigner Formulation of Thermal Transport in Solids

Two different heat-transport mechanisms are discussed in solids. In crystals, heat carriers propagate and scatter particlelike as described by Peierls's formulation of the Boltzmann transport equation for phonon wave packets. In glasses, instead, carriers ...

American Physical Society2022

Active microrheology in corrugated channels: Comparison of thermal and colloidal baths

Ignacio Pagonabarraga Mora

Hypothesis: The dynamics of colloidal suspension confined within porous materials strongly differs from that in the bulk. In particular, within porous materials, the presence of boundaries with complex shapes entangles the longitudinal and transverse degre ...

ACADEMIC PRESS INC ELSEVIER SCIENCE2022

A Mixed-Integer Linear Programming Formulation for Optimizing Multi-Scale Material and Energy Integration

François Maréchal, Hür Ebuzer Bütün, Jean-Loup Sylvain Robineau, Ivan Daniel Kantor

This research presents a mathematical formulation for optimizing integration of complex industrial systems from the level of unit operations to processes, entire plants, and finally to considering industrial symbiosis opportunities between plants. The fram ...

2020

Out-of-equilibrium dynamical equations of infinite-dimensional particle systems I. The isotropic case

Elisabeth Agoritsas

We consider the Langevin dynamics of a many-body system of interacting particles in d dimensions, in a very general setting suitable to model several out-of-equilibrium situations, such as liquid and glass rheology, active self-propelled particles, and gla ...

2019

Kinetic approach to the Schwinger effect during inflation

Oleksandr Sobol

Using the kinetic approach, we study the impact of the charged particle dynamics due to the Schwinger effect on the electric field evolution during inflation. As a simple model of the electric field generation, we consider the kinetic coupling of the elect ...

American Physical Society2019

Rheological behavior of colloidal suspension with long-range interactions

In this work, we study the constitutive behavior of interacting colloidal suspensions for moderate and high concentrations. Specifically, using a lattice Boltzmann solver, we numerically examine suspensions flowing through narrow channels, and explore the ...

2018

A New Formulation of the Cooray-Rubinstein Expression in Time Domain

Farhad Rachidi-Haeri

In this paper, a new formulation in the time domain of the Cooray-Rubinstein expression is presented. This new formulation overcomes the problems related to the previous formulation: The Dirac pulse contained in the kernel of the previous formulation is ex ...

Ieee-Inst Electrical Electronics Engineers Inc2015

Influence Of Processing And Storage On The Shear Thickening Properties Of Highly Concentrated Monodisperse Silica Particles In Polyethylene Glycol

Véronique Michaud, Mathieu Soutrenon

The shear thickening behavior of concentrated suspensions can be exploited to dissipate energy during impact or shear loading. To preserve the consistency of the thickening behavior in practical applications, particle concentration, and dispersion should b ...

Kerschensteiner Verlag Gmbh2013

Granular suspension avalanches. II. Plastic regime

Nicolas Andreini, Christophe Ancey, Gaël Epely Chauvin

We present flume experiments showing plastic behavior for perfectly density-matched suspensions of non-Brownian particles within a Newtonian fluid. In contrast with most earlier experimental investigations (carried out using coaxial cylinder rheometers), w ...

Amer Inst Physics2013

Epoxy-graphite Resistive Composites : Formulation, Characterization and Applications

Nathalie Sophie Adeline Serra

In this thesis, we proposed to study polymer-based thick-film resistors (TFRs) made of graphite particles dispersed in an epoxy matrix. Three main axes were investigated: formulation of the composites, characterization with the determination of electrical, ...

EPFL2012

Fabrication of Polymer-Based Micro Devices: Formulation and Study of the Paste

Thomas Maeder, Peter Ryser, Nathalie Sophie Adeline Serra, Olivier Gentsch

We investigate in the present work the fabrication of polymer-based micro-fluidic and micro-mechanical devices using sacrificial, resistive/conductive pastes, through a screen-printing process. An organic sacrificial paste is first screen-printed onto a su ...

Elsevier2011

Agent-Based Routing in Queueing Systems

Olivier Gallay

Waiting time in any network is often a costly and hence a bad experience. Therefore, to avoid jamming regions becomes essential in the optimization of traffic flows. In this regard, the conception and the control of complex networks supporting flows of uni ...

EPFL2010

The in vivo performance of magnetic particle-loaded injectable, in situ gelling, carriers for the delivery of local hyperthermia

Olivier Jordan, Heinrich Hofmann, Antonin Faes, Alke Fink, Daniel Ruefenacht

In situ forming implants are attractive for minimally invasive localized therapies such as aneurysm embolization. As for the superparamagnetic iron oxide nanoparticles (SPIONs), their deposition/injection in a target tissue area allows magnetically induced ...

2010

Influence of the constant life diagram formulation on the fatigue life prediction of composite materials

Thomas Keller, Behzad Dehghan Manshadi, Anastasios Vassilopoulos

The influence of the constant life diagram (CLD) formulation on the fatigue life prediction of composite materials was examined. Most commonly used and recently proposed CLDs applied on composite materials fatigue data are presented and their applicability ...

Elsevier2010

Introducing symmetry conditions in the integral equation technique applied to quasi-waveguide structures

Juan Ramon Mosig, Michael Mattes, Laleh Golestanirad

Integral Equation (IE) formulation solved by Method of Moments may be used efficiently to address the problem of quasi-waveguide structures, i.e. structures consisting of a main waveguide with a constant cross section that may bear an arbitrary number of p ...

2009

Ceramic particles and layers for functional application

Heinrich Hofmann

Besides 'bulk' structural and functional ceramic, a third interesting group of inorganic or ceramic materials exists: particles used for medical applications like contrast agent as building blocks for photonic crystals, as thin or thick layers with control ...

2009

Three-dimensional harmonic holographic microcopy using nanoparticles as probes for cell imaging

Rachel Grange, Demetri Psaltis, Chia-Lung Hsieh, Ye Pu, Ye Pu

Luminescent markers play a key role in imaging techniques for life science since they provide a contrast mechanism between signal and background. We describe a new type of marker using second harmonic generation (SHG) from noncentrosymmetric BaTiO3 nanocry ...

Optical Society of America2009

Target of rapamycin modulators of and use thereof

Fahd Azzabi Zouraq, Yann Barrandon

The present invention is related to new molecules capable of interacting with target of rapamycin (TOR) transcriptional complex. In particular, the present invention provides novel nucleic acid molecules, processes for production thereof, kits containing t ...

2009

Applying combined field integral equation technique to analyze quasi-waveguide structures

Juan Ramon Mosig, Michael Mattes, Laleh Golestanirad

In this paper a detailed mathematical procedure is described to evaluate modal scattering parameters conventionally defined in planar multilayered structures excited by wave ports. Combined Field Integral Equation technique is implemented and solved using ...

2009

Methods for functionalization of microsized polystyrene beads with titania nanoparticles for cathodic electrophoretic deposition

Stefano Mischler, Johann Michler

Functionalization of colloidal particles based on the use of polyelectrolytes and heterocoagulation was combined with electrophoretic deposition (EPD), with the aim of depositing titania-polystyrene (TiO2-PS) composite particles on Ti6A14V substrates. The ...

2008