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Seminars

Contact :
Matthieu Labousse
matthieu.labousse (arobase) espci.psl.eu
Tel : +33 (0) 1 40 79 45 97

Joshua McGraw
joshua.mcgraw (arobase) espci.fr
Tel : +33 (0) 1 40 79 59 62

Map

Gulliver seminars take place on Mondays at 11:30 AM in the F304 room, and typically last one hour including questions. The seminars are in English, and the scientific topics are mainly those studied in the laboratory.


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Séminaires  (520)

  • Annie Colin (SIMM, ESPCI)
    Lundi 12 octobre 2015 11:15-12:15 - Bibliothèque PCT - F3.04
    Flow of Non-Brownian Suspension in Pipe
    Suspensions are ubiquitous in nature and are encountered in many applications : cement and concrete technology, ceramic processing, coating and pigment technology, propellants and explosives, mineral processing, soil science, composite processing and various slurry flow technologies. The rheological properties of (...)
  • Annie Colin (SIMM, ESPCI)
    Lundi 12 octobre 2015 11:15-12:15 - Bibliothèque PCT - F3.04
    Flow of Non-Brownian Suspension in Pipe
    Suspensions are ubiquitous in nature and are encountered in many applications : cement and concrete technology, ceramic processing, coating and pigment technology, propellants and explosives, mineral processing, soil science, composite processing and various slurry flow technologies. The rheological properties of (...)
  • Jörg Baschnagel (ICS, Université de Strasbourg)
    Lundi 19 octobre 2015 11:15-12:15 - Bibliothèque PCT - F3.04
    MD Simulation of Supercooled Polymer Melts : Modeling of Single-Monomer Dynamics by a Continuous-Time Random Walk Approach
    We present results of molecular-dynamics (MD) simulations for the dynamics of supercooled polymer melts. After an introduction to the simulation model and its ensemble-averaged properties, we analyze the dynamics of single-monomer trajectories. In the supercooled state near the critical temperature of (...)
  • Jörg Baschnagel (ICS, Université de Strasbourg)
    Lundi 19 octobre 2015 11:15-12:15 - Bibliothèque PCT - F3.04
    MD Simulation of Supercooled Polymer Melts : Modeling of Single-Monomer Dynamics by a Continuous-Time Random Walk Approach
    We present results of molecular-dynamics (MD) simulations for the dynamics of supercooled polymer melts. After an introduction to the simulation model and its ensemble-averaged properties, we analyze the dynamics of single-monomer trajectories. In the supercooled state near the critical temperature of (...)
  • Adrian Daerr (MSC, Université Paris Diderot)
    Lundi 26 octobre 2015 11:15-12:15 - Bibliothèque PCT - F3.04
    Wetting Dynamics and Mass Swarming of Bacillus Subtilis over Soft Gel Substrates
    Bacillus subtilis forms dendric colonies on gel surfaces through the collective motion of groups of 10^4 to 10^5 cells which form the compact tips of elongating dendrites. We investigate some physical aspects of this phenomenon, for which humidity and the surfactant production by the bacteria play as much of a (...)
  • Adrian Daerr (MSC, Université Paris Diderot)
    Lundi 26 octobre 2015 11:15-12:15 - Bibliothèque PCT - F3.04
    Wetting Dynamics and Mass Swarming of Bacillus Subtilis over Soft Gel Substrates
    Bacillus subtilis forms dendric colonies on gel surfaces through the collective motion of groups of 10^4 to 10^5 cells which form the compact tips of elongating dendrites. We investigate some physical aspects of this phenomenon, for which humidity and the surfactant production by the bacteria play as much of a (...)
  • Pascal Martin (Institut Curie)
    Lundi 2 novembre 2015 11:15-12:15 - Bibliothèque PCT - F3.04
    Friction from Ion Channels' Gating on Vibrating Hair-Cell Bundles from the Inner Ear
    Hearing starts when sound-evoked mechanical vibrations of the hair-cell bundle activate mechanosensitive ion channels, giving birth to an electrical signal As for any mechanical system, friction impedes movements of the hair bundle and thus constrains the sensitivity and frequency selectivity of auditory (...)
  • Pascal Martin (Institut Curie)
    Lundi 2 novembre 2015 11:15-12:15 - Bibliothèque PCT - F3.04
    Friction from Ion Channels' Gating on Vibrating Hair-Cell Bundles from the Inner Ear
    Hearing starts when sound-evoked mechanical vibrations of the hair-cell bundle activate mechanosensitive ion channels, giving birth to an electrical signal As for any mechanical system, friction impedes movements of the hair bundle and thus constrains the sensitivity and frequency selectivity of auditory (...)
  • François Boulogne (Princeton University, USA)
    Lundi 9 novembre 2015 11:15-12:15 - Bibliothèque PCT - F3.04
    Homogeneous Deposition of Particles on Hydrogels by Absorption
    A drying drop containing solid particles like tea or coffee leaves a ring stain resulting from the accumulation of the particles near the contact line. In most of industrial applications such as printing, coating or biological microtechnologies, these inhomogeneities must be avoided. A significant range of new (...)
  • François Boulogne (Princeton University, USA)
    Lundi 9 novembre 2015 11:15-12:15 - Bibliothèque PCT - F3.04
    Homogeneous Deposition of Particles on Hydrogels by Absorption
    A drying drop containing solid particles like tea or coffee leaves a ring stain resulting from the accumulation of the particles near the contact line. In most of industrial applications such as printing, coating or biological microtechnologies, these inhomogeneities must be avoided. A significant range of new (...)
  • Jérôme Casas (Paris Sciences Chair & Université de Tours)
    Lundi 16 novembre 2015 11:15-12:15 - Bibliothèque PCT - F3.04
    Flow Microsensors : From Insects to MEMS and Back
    Jérôme Casas, Paris Sciences Chair & Université de Tours I will start this talk by making a short excursion into the physical ecology of insects which we study with colleagues of the ESPCI and other physicists of similar spirit. I will then deal with the latest advances in our understanding of insect and man-made (...)
  • Jérôme Casas (Paris Sciences Chair & Université de Tours)
    Lundi 16 novembre 2015 11:15-12:15 - Bibliothèque PCT - F3.04
    Flow Microsensors : From Insects to MEMS and Back
    Jérôme Casas, Paris Sciences Chair & Université de Tours I will start this talk by making a short excursion into the physical ecology of insects which we study with colleagues of the ESPCI and other physicists of similar spirit. I will then deal with the latest advances in our understanding of insect and man-made (...)
  • Ullrich Steiner (Adolphe Merkle Institute, University of Friburg, Switzerland)
    Lundi 23 novembre 2015 11:15-12:15 - Bibliothèque PCT - F3.04
    Structure-Function Relationship in Polymer Solar Cells
    Organic solar cells typically consist of several components and it is long recognised that their efficiency depends on the detailed morphology of these constituents. Structure formation in two components systems, often containing a conjugated polymer and a C60 derivative, is currently not well understood and the (...)
  • Ullrich Steiner (Adolphe Merkle Institute, University of Friburg, Switzerland)
    Lundi 23 novembre 2015 11:15-12:15 - Bibliothèque PCT - F3.04
    Structure-Function Relationship in Polymer Solar Cells
    Organic solar cells typically consist of several components and it is long recognised that their efficiency depends on the detailed morphology of these constituents. Structure formation in two components systems, often containing a conjugated polymer and a C60 derivative, is currently not well understood and the (...)
  • Frédéric Léchenault (LPS, ENS)
    Lundi 30 novembre 2015 11:15-12:15 - Bibliothèque PCT - F3.04
    Origami Mechanics
    Over the past thirty years, the ancient art of paper folding, or origami, has evolved into an interdisciplinary scientific field. Origami offers the possibility for new metamaterials whose overall mechanical properties can be programmed by acting locally on each crease. Origami metamaterials show for example (...)
  • Frédéric Léchenault (LPS, ENS)
    Lundi 30 novembre 2015 11:15-12:15 - Bibliothèque PCT - F3.04
    Origami Mechanics
    Over the past thirty years, the ancient art of paper folding, or origami, has evolved into an interdisciplinary scientific field. Origami offers the possibility for new metamaterials whose overall mechanical properties can be programmed by acting locally on each crease. Origami metamaterials show for example (...)
  • Andreas Carlson (University of Oslo, Norway)
    Mardi 1er décembre 2015 11:00-12:00 - Bibliothèque PCT - F3.04
    Elastohydrodynamic Singularity and Self-similarity in Contacting Sheets
    The dynamics of contact between a thin elastic film and a solid arises in many scientific and engineering applications, from the simple saran-wrap to cellular adhesion to grounding lines in ice sheets. Elastohydrodynamic lubrication theory allows us to derive a partial differential equation coupling the elastic (...)
  • Andreas Carlson (University of Oslo, Norway)
    Mardi 1er décembre 2015 11:00-12:00 - Bibliothèque PCT - F3.04
    Elastohydrodynamic Singularity and Self-similarity in Contacting Sheets
    The dynamics of contact between a thin elastic film and a solid arises in many scientific and engineering applications, from the simple saran-wrap to cellular adhesion to grounding lines in ice sheets. Elastohydrodynamic lubrication theory allows us to derive a partial differential equation coupling the elastic (...)
  • Ramin Golestanian (University of Oxford, UK)
    Lundi 7 décembre 2015 11:15-12:15 - Bibliothèque PCT - F3.04
    Collective Chemotaxis of Colloidal and Living Active Matter
    The non-equilibrium dynamics of active particles that send and receive chemical signals could lead to spontaneous formation of interesting structures and patterns due to the long-range nature of the interactions. I examine theoretically the consequences of this interaction, and present some results that exemplify (...)
  • Ramin Golestanian (University of Oxford, UK)
    Lundi 7 décembre 2015 11:15-12:15 - Bibliothèque PCT - F3.04
    Collective Chemotaxis of Colloidal and Living Active Matter
    The non-equilibrium dynamics of active particles that send and receive chemical signals could lead to spontaneous formation of interesting structures and patterns due to the long-range nature of the interactions. I examine theoretically the consequences of this interaction, and present some results that exemplify (...)
  • Jacco Snoeijer (University of Twente, Netherlands)
    Lundi 14 décembre 2015 11:15-12:15 - Bibliothèque PCT - F3.04
    Surface Tension Regularises the Crack Singularity of Adhesive Contacts
    Recent studies revealed a profound connection between “liquid wetting” and “solid adhesion” : both emerge as a limiting case for adhesion between sticky, elastic bodies. Here we address the unification of wetting and adhesion on the level of the contact mechanics. We first show that soft elastic bodies can exhibit a (...)
  • Jacco Snoeijer (University of Twente, Netherlands)
    Lundi 14 décembre 2015 11:15-12:15 - Bibliothèque PCT - F3.04
    Surface Tension Regularises the Crack Singularity of Adhesive Contacts
    Recent studies revealed a profound connection between “liquid wetting” and “solid adhesion” : both emerge as a limiting case for adhesion between sticky, elastic bodies. Here we address the unification of wetting and adhesion on the level of the contact mechanics. We first show that soft elastic bodies can exhibit a (...)
  • Detlef Lohse (Saint-Gobain Chair & University of Twente, Netherlands)
    Lundi 4 janvier 2016 11:30-12:30 - Bibliothèque PCT - F3.04
    Floating on Air
    A drop impacting on a solid surface deforms before the liquid makes contact with the surface. We directly measure the time evolution of the air layer profile under the droplet using high-speed color interferometry, obtaining the air layer thickness before and during the wetting process and the volume of the (...)
  • Detlef Lohse (Saint-Gobain Chair & University of Twente, Netherlands)
    Lundi 4 janvier 2016 11:30-12:30 - Bibliothèque PCT - F3.04
    Floating on Air
    A drop impacting on a solid surface deforms before the liquid makes contact with the surface. We directly measure the time evolution of the air layer profile under the droplet using high-speed color interferometry, obtaining the air layer thickness before and during the wetting process and the volume of the (...)
  • Eric Lauga (DAMTP, University of Cambridge)
    Lundi 11 janvier 2016 11:30-12:30 - Bibliothèque PCT - F3.04
    Hydrodynamic Interactions between Flagellar Filaments
    Many small organisms possess flagella, slender whiplike appendages which are actuated in a periodic fashion in fluids and allow the cells to self-propel. In particular, most motile bacteria are equipped with multiple helical rotating flagella which interact hydrodynamically, synchronize, and can form a tight (...)
  • Eric Lauga (DAMTP, University of Cambridge)
    Lundi 11 janvier 2016 11:30-12:30 - Bibliothèque PCT - F3.04
    Hydrodynamic Interactions between Flagellar Filaments
    Many small organisms possess flagella, slender whiplike appendages which are actuated in a periodic fashion in fluids and allow the cells to self-propel. In particular, most motile bacteria are equipped with multiple helical rotating flagella which interact hydrodynamically, synchronize, and can form a tight (...)
  • Elisabeth Charlaix (LiPhy, Université Joseph Fourier, Grenoble)
    Lundi 18 janvier 2016 11:30-12:30 - Bibliothèque PCT - F3.04
    Hydrodynamic Forces : from Boundary Slippage to the Mechanics of Soft Surfaces
    Surface forces measurements have been an invaluable tool to perform quantitative mechanical probing at a nano-scale, and have contributed to our understanding of the friction of liquids onto solid surfaces and dissipation in confined liquid layers. But beyond the scope of friction, the measurement of (...)
  • Elisabeth Charlaix (LiPhy, Université Joseph Fourier, Grenoble)
    Lundi 18 janvier 2016 11:30-12:30 - Bibliothèque PCT - F3.04
    Hydrodynamic Forces : from Boundary Slippage to the Mechanics of Soft Surfaces
    Surface forces measurements have been an invaluable tool to perform quantitative mechanical probing at a nano-scale, and have contributed to our understanding of the friction of liquids onto solid surfaces and dissipation in confined liquid layers. But beyond the scope of friction, the measurement of (...)
  • François Lequeux (SIMM, ESPCI)
    Lundi 25 janvier 2016 11:30-12:30 - Bibliothèque PCT - F3.04
    Role of Dynamical Heterogeneities in the Mechanics of Glassy Polymer
    Dynamical heterogeneities in glass - and peculiarly for polymer glasses - have been since more than 20 years the object of many debates. Nowadays, the actual picture is fairly simple ; glass can be considered as tiled by nanometric domains with very different dynamics. More precisely, the dynamics of the monomer (...)
  • François Lequeux (SIMM, ESPCI)
    Lundi 25 janvier 2016 11:30-12:30 - Bibliothèque PCT - F3.04
    Role of Dynamical Heterogeneities in the Mechanics of Glassy Polymer
    Dynamical heterogeneities in glass - and peculiarly for polymer glasses - have been since more than 20 years the object of many debates. Nowadays, the actual picture is fairly simple ; glass can be considered as tiled by nanometric domains with very different dynamics. More precisely, the dynamics of the monomer (...)

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General recommendations for the speakers

The audience is often heterogeneous - because of the wide range of scientific topics covered in the lab - so planning a talk for a broader audience would be preferred. The seminar is in English, and speakers are thus invited to prepare their slides in English.

The seminar starts at 11:30 AM. The speaker is asked to arrive in the lab at least 15 minutes in advance to set up their computer. The talks last typically 45 minutes, and are followed by a discussion time.

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