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X-WR-CALNAME:Chimie ParisTech - PSL
X-ORIGINAL-URL:https://www.chimieparistech.psl.eu
X-WR-CALDESC:Évènements pour Chimie ParisTech - PSL
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BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260108T140000
DTEND;TZID=Europe/Paris:20260108T170000
DTSTAMP:20260105T135611Z
CREATED:20260105T135611Z
LAST-MODIFIED:20260105T135611Z
UID:29089-1767880800-1767891600@www.chimieparistech.psl.eu
SUMMARY:Séminaire Programme Gradué Chimie PSL
DESCRIPTION:Steady state viscoelastic crack growth in a pure shear sample Chung-Yuen Hui1Sibley School of Mechanical and Aerospace Engineering\, Field of Theoretical & Applied Mechanics\, E-mail: ch45@cornell.eduA classical problem in viscoelastic fracture is the steady-state growth of a crack under small-scale creeping (SSD) conditions. Under SSD\, the size of the damage zone is assumed to be much smaller than the specimen dimensions\, allowing finite-size effects to be neglected and justifying the use of an elastic K-field at infinity. A well-known limitation of this framework is that it predicts an unrealistically small dissipation zone.In this talk\, I use an exact closed-form solution for a Mode III crack in a pure-shear specimen to examine what occurs when finite-specimen effects are included and the damage zone becomes comparable to—or even larger than—the specimen dimensions (LSD). The full-field solution enables direct computation of stress\, strain\, and viscoelastic dissipation fields\, providing a clear view of how damage interacts with viscoelastic energy loss. We identify a new dimensionless damage parameter (ranging from 0 to 1) that governs the transition from SSC to LSD\, offering a unified framework for understanding fracture behavior across these regimes.
URL:https://www.chimieparistech.psl.eu/evenement-agenda/seminaire-programme-gradue-chimie-psl-179/
LOCATION:ESPCI Paris\, 10 Rue Vauquelin\, Paris\, 75005\, France
CATEGORIES:Séminaire
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BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260109T080000
DTEND;TZID=Europe/Paris:20260109T170000
DTSTAMP:20260109T095114Z
CREATED:20260109T095114Z
LAST-MODIFIED:20260109T095114Z
UID:29107-1767945600-1767978000@www.chimieparistech.psl.eu
SUMMARY:Formation Continue "Calcul de spéciation en solution et aux interfaces"
DESCRIPTION:La Formation se déroulera du 2-5 juin 2026.  \nObjectifs :  \nCe stage vise à familiariser les participants à l’utilisation de logiciels de spéciation d’espèces en solution et adsorbées. Il est structuré en 3 modules consistant en (1) une introduction à l’utilisation du logiciel PHREEQC pour la spéciation des ions et des solides\, (2) une présentation des différents modèles de complexation de surface et d’échanges d’ions\, et (3) la simulation du transport réactif. \nUne partie importante de la formation sera consacrée à l’utilisation de logiciels. \nIntervenants : \nRomain Dagnelie (CEA\, Université Paris- Saclay)\nAnnette Hofmann (LOG – Univ. Lille)\nGrégory Lefèvre (IRCP – Chimie ParisTech)\nRémi Marsac (IPGP) \nPublic concerné : \nChercheurs et doctorants souhaitant se former\nou se perfectionner sur les calculs de spéciation\nLa connaissance des bases de la chimie en solution est requise \nTous les détails ici
URL:https://www.chimieparistech.psl.eu/evenement-agenda/formation-continue-calcul-de-speciation-en-solution-et-aux-interfaces/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260119T080000
DTEND;TZID=Europe/Paris:20260219T170000
DTSTAMP:20260202T141651Z
CREATED:20260215T080007Z
LAST-MODIFIED:20260202T141651Z
UID:29156-1768809600-1771520400@www.chimieparistech.psl.eu
SUMMARY:Intégrer le cycle Ingénieur - dispositif GEI-UNIV ouvert
DESCRIPTION:Les inscriptions au dispositif GEI-UNIV sont ouvertes jusqu’au 19 février 2026. \nDestiné aux étudiantes et étudiants de niveau L3 inscrits dans un cursus scientifique\, ce dispositif offre une voie d’admission sur titre universitaire en cycle d’Ingénieur à Chimie ParisTech-PSL. \nInscriptions ici. 
URL:https://www.chimieparistech.psl.eu/evenement-agenda/nous-rejoindre-gei-univ-ouvert/
CATEGORIES:Evénement
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260119T113000
DTEND;TZID=Europe/Paris:20260119T133000
DTSTAMP:20260116T112750Z
CREATED:20260116T112750Z
LAST-MODIFIED:20260116T112750Z
UID:29146-1768822200-1768829400@www.chimieparistech.psl.eu
SUMMARY:Séminaire Programme Gradué Chimie PSL
DESCRIPTION:Next Monday\,  19th of January at 11:30\, we have the pleasure to listen to Manish Kushwaha from Micalis Institute\, INRAE\, Jouy-en-Josas. The title of Manish’s talk is:**  Bacteriophages as Communication Signals: Information Processing in Multicellular Bacterial Systems **This seminar will take place at the seminar room of Gulliver C1.62  at 11:30.AbstractCoordinated actions of cells in microbial communities and multicellular organisms enable them to perform complex tasks that may not be accessible for single cells. This has inspired biological engineers to build cellular consortia for larger circuits with improved functionalities\, while implementing communication systems for coordination between cells. In this talk\, I will present our lab’s work on engineering a synthetic communication channel in bacterial populations by repurposing bacteriophage particles as programmable information carriers. We use filamentous phages to transmit DNA “messages” between cells\, defining a molecular signalling approach with high payload capacity\, tuneable specificity\, and non-local interaction range. Sender cells emit phage signals\, while receiver cells interpret incoming DNA signals using CRISPR interference\, coupling communication to gene regulation and computation. We characterise the signalling dynamics of the system\, showing how cellular physiological state\, growth conditions\, and resource competition shape effective communication. Leveraging the easy programmability of DNA messages\, we build several orthogonal signals and demonstrate that intercellular CRISPRi (i-CRISPRi) regulates gene expression across cells. These multicellular circuits perform single- and multi-input logic gate operations involving up to seven interacting cell types\, using both single- and dual-rail encoding schemes. The communication system presented here lays the groundwork for implementing complex biological circuits in engineered bacterial communities\, using DNA as a communication signal.
URL:https://www.chimieparistech.psl.eu/evenement-agenda/seminaire-programme-gradue-chimie-psl-180/
LOCATION:ESPCI Paris\, 10 Rue Vauquelin\, Paris\, 75005\, France
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260122T140000
DTEND;TZID=Europe/Paris:20260122T160000
DTSTAMP:20260116T113227Z
CREATED:20260116T113227Z
LAST-MODIFIED:20260116T113227Z
UID:29148-1769090400-1769097600@www.chimieparistech.psl.eu
SUMMARY:Séminaire Programme Gradué Chimie PSL
DESCRIPTION:Thursday January 22 at 2:00 pm (Paris time)\, Room Charpak\, entrance building\, ground floor\, ESPCI\, at LPEM in hybrid format:  \nFrontiers in THz cavity QED: Deep-strong multi-mode coupling\, subcycle nonlinearities\, and diabatic switchingby Christoph LangeTU Dortmund UniversityDressing matter excitations with cavity photons can create novel\, exotic quantum states. Ultrastrong coupling\, where the ratio of vacuum Rabi frequency and carrier frequency of light\, W_R/w_c\, approaches unity\, has enabled vacuum-field modified transport\, polaritonic chemistry\, or strong mode squeezing and entanglement. Past investigations of this regime of cavity quantum electrodynamics (c-QED) focused on coupling of a single pair of light and matter modes\, in equilibrium. Here\, we discuss conceptually new extremes of c-QED. We demonstrate subcycle control of deep-strong coupling\, where W_R/w_c is collapsed from 1.3 to zero within 5% of the optical cycle duration\, leading to characteristic trailing oscillations of the extinguished polariton states. Moreover\, we investigate coherent subcycle nonlinearities of multiple cavity polaritons and observe dynamical mixing between otherwise orthogonal modes. Our most recent structures demonstrate extremely strong\, multi-mode coupling of 20 matter resonances and multiple cavity modes over 6 optical octaves\, boosting the number of virtual cavity photons beyond unity for the first time while achieving a record coupling strength of W_R/w_c = 3.19.\nZoom link: https://espci.zoom.us/j/83518778072?pwd=Eea1JMfm4IaoQrw6gGOKNZRfNbBZ0F.1ID: 835 1877 8072Passcode: C.H.Townes
URL:https://www.chimieparistech.psl.eu/evenement-agenda/seminaire-programme-gradue-chimie-psl-181/
LOCATION:évènement hybride
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260126T113000
DTEND;TZID=Europe/Paris:20260126T130000
DTSTAMP:20260121T135335Z
CREATED:20260121T135335Z
LAST-MODIFIED:20260121T135335Z
UID:29172-1769427000-1769432400@www.chimieparistech.psl.eu
SUMMARY:Séminaire Programme Gradué Chimie PSL
DESCRIPTION:Blaise Delmotte from LadHyX\, Polytechnique. The title of Blaise’s talk is: **  Nonlinear dynamics\, collective motion and separation: dynamics of active and flexible particles in structured media **and the abstract is below.\n\nThis talk combines microfluidic experiments\, theory\, and numerical simulations to investigate the dynamics of active particles and flexible particles moving through structured media. First\, I will present a counterintuitive phenomenon: magnetic\, torque-driven colloids—known to exhibit unusual collective behaviour at large scales—can become hydrodynamically trapped by obstacles only in the presence of Brownian motion. In contrast to its conventional role in facilitating escape from traps\, thermal noise here is the only means for particles to access a hydrodynamic attractor. The second part focuses on the dynamics of flexible fibres in structured environments. Fibre–obstacle interactions give rise to distinct trajectories controlled by fibre size and elasticity\, which can be exploited for particle separation and filtration. These dynamics are characterised by bifurcations between multiple attractors and by alternation between periodic and chaotic regimes.
URL:https://www.chimieparistech.psl.eu/evenement-agenda/seminaire-programme-gradue-chimie-psl-182/
LOCATION:ESPCI Paris\, 10 Rue Vauquelin\, Paris\, 75005\, France
CATEGORIES:Séminaire
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20260127T180000
DTEND;TZID=Europe/Paris:20260127T200000
DTSTAMP:20250924T082727Z
CREATED:20250924T082727Z
LAST-MODIFIED:20250924T082727Z
UID:28094-1769536800-1769544000@www.chimieparistech.psl.eu
SUMMARY:Live spécial CPI 2026 FGL
DESCRIPTION:Inscriptions ici \nToutes les informations ici
URL:https://www.chimieparistech.psl.eu/evenement-agenda/live-special-cpi-2026-fgl/
LOCATION:A distance / En ligne
CATEGORIES:Conférence
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