PMMH Seminars

PMMH’s weekly seminar is held every Friday at 11am

Contact :
Benoit Semin
Sylvain Patinet
Etienne Reyssat
responsables-seminaires (arobase)

75005 PARIS

Tel : (33) 1 40 79 45 22

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Seminars  (279)

  • Lucas Goehring (Max Planck Institute Goettingen)
    Vendredi 21 juin 2013 11:30-12:30 - Bureau d'Etudes
    Evolving crack patterns : mud cracks, columnar joints, and polygonal terrain
    Contraction cracks can form captivating patterns, such as the artistic craquelure sometimes found in pottery glazes, to the cracks in dried mud, or the polygonal networks covering the polar regions of Earth and Mars. Two types are frequently encountered : those with irregular rectilinear patterns, such as that (...)
  • Marc-Etienne Brachet (LPS, ENS)
    Vendredi 28 juin 2013 11:00-12:00 - Bureau d'Etudes
    The incompressible Euler singularity problem
    A central open question in classical fluid dynamics is whether the incompressible three-dimensional Euler equations with smooth initial conditions develop a singularity after a finite time. Recent results on this problem reported in [1] will be presented in the seminar. [1] Miguel D. Bustamante and Marc Brachet, (...)
  • Stephan Herminghaus (Max Planck Gesellschaft)
    Vendredi 5 juillet 2013 11:00-12:00 - Amphi Holweck
    Active emulsions : soft matter far from thermal equilibrium
    A number of experiments are presented dealing with 'active' emulsions, i.e., collections of droplets the ingredients of which are not in thermal equilibrium. As a consequence, they exhibit unusual collective behaviour, which may resemble dynamic patterns they are sometimes observed in cell cultures, or (...)
  • Roberto Zenit (UNAM, México)
    Vendredi 12 juillet 2013 11:00-12:00 - Amphi Langevin
    Locomotion of microorganisms in complex fluids
    The fundamental mechanisms of microorganism motility have been extensively studied in the past. Most previous work focused on cell locomotion in simple (Newtonian) fluids. However, in many cases of biological importance (including mammalian reproduction and bacterial infections), the fluids that surround the (...)
  • Netta Cohen (University of Leeds, UK)
    Vendredi 19 juillet 2013 11:00-12:00 - Amphi Langevin
    Animal microswimmers : closing the neuro-environment loop
    Planar undulations are a common mechanism for biological locomotion across many scales and phyla. Here I review recent progress in understanding the locomotion control of a microscopic nematode worm, C. elegans, and the interplay between neural control, passive and active body forces and the interaction with (...)
  • Jean-Marc Chomaz (LadHyX, Ecole Polytechnique)
    Vendredi 6 septembre 2013 11:00-12:00 - Bureau d'Etudes
    Science and art of sculpturing fluids
    The role of aesthetics is analysed through particular examples of my realisations both in sciences and in the art & science. Sur l'image : Installation Fluxus devant la bourse du commerce à Paris pour la foire d'art contemporain CUTLOG en octobre 2012, schéma de fonctionnement et mise au point au laboratoire avec (...)
  • Roberto Toro (Institut Pasteur)
    Vendredi 13 septembre 2013 11:00-12:00 - Bureau d'Etudes
    Development and evolution of brain folding and brain organisation
    The mammalian brain is astonishingly diverse. Not only its size varies several orders of magnitude – from the 3 grams of the mouse brain to the 6 kg of the blue whale brain – but also its geometry and function. There is indeed a striking, largely unexplained, relationship between the folding of the mammalian brain (...)
  • Igor Aronson (Argonne National Laboratory, USA)
    Vendredi 20 septembre 2013 11:00-12:00 - Bureau d'Etudes
    Cell Movement on Soft Engineered Substrates
    Self-propelled motion, emerging spontaneously or in response to external cues, is a hallmark of living organisms. Systems of self-propelled synthetic particles are also relevant for multiple applications, from targeted drug delivery to the design of self-healing materials. Self-propulsion relies on the force (...)
  • Florence Haudin (NonLinear Physical Chemistry Unit, Université Libre de Bruxelles)
    Vendredi 27 septembre 2013 11:00-12:00 - Amphi Urbain
    Buoyancy- and chemically-driven pattern formation in the contact zone between two fluids
    To characterize phenomena occuring in the contact zone between two fluids, it is possible to place them between two plates separated by a small gap, thus confining the flows in a quasi 2D geometry. We will here present two studies performed in this type of set up, called Hele-Shaw cell. In a first part, we will (...)
  • Corentin Coulais (Leiden University)
    Vendredi 4 octobre 2013 11:00-12:00 - Bureau d'Etudes
    ''Can you shape the feel of a thing ?'' : Tunable mechanical meta-materials
    We probe the mechanical response of 2d elastic media, structured by a crystalline pattern of holes of two different sizes. While compressed under uniaxial loading, the holes pattern transforms, the overall material undergoes an auxetic mechanical response. Hole size and aspect ratio play a crucial role on this (...)

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Information for the speakers

The audience is composed of people with rather heterogeneous backgrounds including specialists in solids, fluids, granular flows, statistical physics... so the idea is to keep your talk understandable by people not necessarily working in your field... The seminar time slot runs from 11am to noon so the best is to make the talk last around 45 minutes to leave some time for discussion.


Practical information

Laboratoire : 01 40 79 45 22
Directeur : Damien Vandembroucq
Codirecteur : Philippe Petitjeans
Administratrice : Frédérique Auger (01 40 79 45 22)
Gestionnaire : Claudette Barez (01 40 79 58 53)
Courriel : dir (arobase)

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