ESPCI web site
Séminaires
Le séminaire hebdomadaire du laboratoire PMMH a lieu tous les vendredis à 11h, au premier étage Barre Cassan, campus Jussieu (plan).
Alice Pelosse
Stéphane Perrard
Etienne Reyssat
Virgile Thiévenaz
PMMH
BARRE CASSAN
BAT A 1ER ETAGE CASE 18
7 QUAI SAINT BERNARD
75005 PARIS
France
Tel : (33) 1 40 79 45 22
Séminaire PMMH - Hannah Allen (LSCE, CEA Saclay)
Monitoring atmospheric fossil fuel emissions using radiocarbon and global atmospheric simulations with a transport and inverse modeling system
Independent monitoring and apportioning of CO2 emissions is crucial for the verification of greenhouse gas reductions targeted by international agreements designed for climate change mitigation and adaptation. Radiocarbon (14C), found as a fractional isotope of CO2, can be used as a key tracer for fossil-derived CO2 and thus aid in the accurate apportioning of measured CO2 that arises from fossil fuel sources compared with other emissions sources. As part of the Horizon Europe CORSO project, we expanded a dedicated atmospheric transport modeling and variational inversion system to include radiocarbon in order to assess fossil CO2 emissions estimates at the global scale. The system is based on the assimilation of CO2 and 14CO2 measurements that are collected using central-European atmospheric ICOS stations combined with global background stations. The modeling and inversion framework is based on the Community Inversion Framework (CIF) coupled to the LMDZ global transport model with fluxes and isotopic signatures from terrestrial, oceanic, fossil fuel, nuclear, and cosmogenic sources. We conduct a multi-decadal analysis of the CO2 and 14CO2 emissions derived from this framework.
Séminaires (4)
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Séminaire PMMH — Constantino Tsallis (Centro Brasileiro de Pesquisas Fisicas)
Vendredi 6 novembre de 11h00 à 12h00 - Salle réunion PMMH 1
Nonadditive entropies : Along the Boltzmann-Gibbs legacy
The magnificent Boltzmann-Gibbs (BG) statistical mechanics is grounded on the celebrated additive entropic functional S_BG. This theory satisfactorily describes a plethora of so-called simple systems. It fails, however, for wide classes of natural, technological and social complex systems. The violation of the (…) -
Séminaire PMMH Nicolas Bain (Institut Lumière Matière, Lyon)
Vendredi 13 novembre de 11h00 à 12h00 - Salle réunion PMMH 1
3D Micromechanics, from interfacial mechanics to transport properties
In recent years, 3D micromechanics has emerged as a powerful tool to quantify and understand mechanical behaviors of soft materials, from fracture, to freezing, and interfacial mechanics. In this presentation, I will illustrate the principle and potential of this technique by detailing a recent project on the (…) -
Séminaire PMMH - Ada Altieri (MSC, Paris)
Vendredi 20 novembre de 11h00 à 12h00 - Salle réunion PMMH 1
From disordered Generalized Lotka-Volterra models to gut microbiome complexity
Inferring species interactions in highly heterogeneous ecological communities and developing a robust, predictive theory of ecological stability remain major challenges, due both to the amount of data required and the complexity of the underlying interaction network. In this talk, I will present a high-dimensional (…) -
Séminaire PMMH — Benjamin Apffel (ENS Lyon)
Vendredi 8 janvier 2027 de 11h00 à 12h00 - Salle réunion PMMH 1
Computing with Frustrated Space-Time Metamaterials
Space-time metamaterials are engineered media whose constitutive parameters are modulated simultaneously in both space and time. They are now used to achieve unprecedented wave control. However, the vast majority of studies operate in the stable regime, where modulation parameters are chosen to ensure linear wave (…)
Instructions générales pour les conférenciers
Le public du séminaire est très hétérogène (rien qu’au PMMH nous travaillons sur des thématiques très diverses, mécanique des fluides, des milieux granulaires, des solides, physique statistique, physique du mouillage, micro-fluidique, biophysique,...) l’objectif est donc de ne pas faire un séminaire trop spécialiste : au moins la première moitié du séminaire à un niveau accessible pour celui qui ne connaît rien sur le sujet.
Le séminaire a lieu à 11h. rendez-vous 15 minutes avant pour installer et tester la projection.
Le séminaire dure environ 45 minutes pour laisser un peu de temps pour discuter à la fin.
- Séminaires ESPCI-ENS de biophysique
- Séminaires du Département de Physique de l’ENS
- Séminaires du Laboratoire d’Hydrodynamique de l’X
- Séminaire de Mécanique d’Orsay (page web FAST)
- Séminaire de Mécanique d’Orsay (page web LIMSI)
- Séminaire de Mécanique des Fluides de l’Institut Jean le Rond d’Alembert
- Séminaires du laboratoire MSC, Paris VII
- Séminaires Gulliver
Soutenances de thèse
Auriane Huyghues-Despointes : 22/09 - 14h30
Sébastien Kuchly : 23/09 - 14h
Juliette Michaud : 28/09 - 14h
Diane Komaroff : 02/10 - 14h
Marc Vacher : 13/10
Jules Tampier : 16/10 - 13h30
Alex Le Guen : 01/12 - 14h
Elias Lundheim : 07/12 - 9H
Séminaires café (internes, tous les jeudis)
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