Events
retrieve:
Return the details about the given Memento id.
list:
List all Memento objects.
GET /api/v1/mementos/1/events/?format=api&offset=40
{ "count": 108, "next": "https://memento.epfl.ch/api/v1/mementos/1/events/?format=api&limit=10&offset=50", "previous": "https://memento.epfl.ch/api/v1/mementos/1/events/?format=api&limit=10&offset=30", "results": [ { "id": 71338, "title": "Probing Ultrafast Electron Motion with Attosecond X-ray Free Electron Lasers", "slug": "probing-ultrafast-electron-motion-with-attosecond", "event_url": "https://memento.epfl.ch/event/probing-ultrafast-electron-motion-with-attosecond", "visual_url": "https://memento.epfl.ch/image/32692/200x112.jpg", "visual_large_url": "https://memento.epfl.ch/image/32692/720x405.jpg", "visual_maxsize_url": "https://memento.epfl.ch/image/32692/max-size.jpg", "lang": "en", "start_date": "2026-04-23", "end_date": "2026-04-23", "start_time": "17:15:00", "end_time": "18:30:00", "description": "<p>The ultrafast motion of electrons is a frontier problem for photochemical processes, as electron motion is a key ingredient of all chemical reactions. Electronic rearrangement is also the means by which light energy is harnessed in photochemistry. The timescale for coherent electron dynamics is set by the energetic splitting of the electronic states, which in small molecular systems, is on the scale of an electron volt (eV). This sets the natural timescale for electronic motion to be few-to-sub femtosecond (fs).<br>\r\n<br>\r\nTo approach these extreme timescales, we can use short pulses of light to excite small quantum systems. For instance, the impulsive interactions between a light field and a quantum system can induce time-dependent oscillations in the charge density. Such electronic wavepacket motion (in the absence of nuclear motion) has come to be referred to as charge migration [1]. While the initial charge dynamics following impulsive excitation (or ionization) begins as purely electronic motion, this wavepacket will couple to other degrees of freedom in the system (i.e. nuclear motion or chemical dynamics) and lead to localization of the charge. The transfer of electronic charge across molecular bonds is fundamental to an understanding of charge transfer phenomena.<br>\r\n<br>\r\nThe study of these fundamental phenomena requires state-of-the-art light sources, such as the Linac Coherent Light Source (LCLS), an X-ray free electron laser (XFEL) facility which produces high-brightness, ultrashort pulses, with wavelength continuously tunable across the x-ray regime. Schemes to provide isolated, sub-femtosecond pulses from an FEL are being explored at facilities world-wide, and recently we have demonstrated such pulses at the LCLS [2]; opening the door for time-resolved measurements of ultrafast electron dynamics on their natural timescale. In my talk, I will highlight our recent developments in probing electronic motion in small molecular systems. We have employed sub-femtosecond pulses from the XFEL to study ultrafast charge dynamics in both core-excited [3,4,5] and low-lying cationic systems [6]. We are also developing nonlinear x-ray spectroscopies [7,8] to initiate and control electron dynamics. The control of coherent electron motion represents a significant step towards achieving charge-directed reactivity [9], a grand challenge for the field of attosecond science.<br>\r\n<br>\r\n[1] Cederbaum and Zobeley 1999 Chemical Physics Letters 307 205–210<br>\r\n[2] Duris and Li et al. 2020 Nature Photonics 14 30-36<br>\r\n[3] Li and Driver et al. 2022 Science 375 285-290<br>\r\n[4] Driver et al. 2024 Nature 632 762-767 (2024)<br>\r\n[5] Wang and Driver et al. Phys. Rev. X 15 011008 (2005)<br>\r\n[6] Driver et al. ArXiv:2411.01700<br>\r\n[7] O’Neal et al. 2020 Phys. Rev. Lett. 125 073203<br>\r\n[8] Biggs et al. 2023 Proc. Nat. Acad. Sci. 110 15597-15601<br>\r\n[9] F. Remacle, R. D. Levine, and M. A. Ratner 1998 Chem. Phys. Lett. 285, 25<br>\r\n </p>", "image_description": "", "creation_date": "2026-03-10T09:08:13", "last_modification_date": "2026-03-10T09:08:45", "link_label": "", "link_url": "", "canceled": "False", "cancel_reason": "", "place_and_room": "CH G1 495", "url_place_and_room": "https://plan.epfl.ch/?room==CH%20G1%20495", "url_online_room": "https://epfl.zoom.us/j/67570484652?pwd=UpB6UFTCS3n1QpxlIaYM2UvuMD3tkr.1", "spoken_languages": [ "https://memento.epfl.ch/api/v1/spoken_languages/2/?format=api" ], "speaker": "James Cryan, Stanford Univ. / SLAC", "organizer": "Christoph Bostedt", "contact": "Christoph Bostedt", "is_internal": "False", "theme": "", "vulgarization": { "id": 2, "fr_label": "Public averti", "en_label": "Informed public" }, "registration": { "id": 3, "fr_label": "Entrée libre", "en_label": "Free" }, "keywords": "pcseminar", "file": null, "icalendar_url": "https://memento.epfl.ch/event/export/120028/", "category": { "id": 1, "code": "CONF", "fr_label": "Conférences - Séminaires", "en_label": "Conferences - Seminars", "activated": true }, "academic_calendar_category": null, "domains": [], "mementos": [ "https://memento.epfl.ch/api/v1/mementos/1/?format=api", "https://memento.epfl.ch/api/v1/mementos/5/?format=api", "https://memento.epfl.ch/api/v1/mementos/204/?format=api", "https://memento.epfl.ch/api/v1/mementos/14/?format=api", "https://memento.epfl.ch/api/v1/mementos/191/?format=api", "https://memento.epfl.ch/api/v1/mementos/6/?format=api" ] }, { "id": 71415, "title": "Probing (ferro)electric fields using pixelated differential phase contrast imaging aided by precession", "slug": "probing-ferroelectric-fields-using-pixelated-dif-2", "event_url": "https://memento.epfl.ch/event/probing-ferroelectric-fields-using-pixelated-dif-2", "visual_url": "https://memento.epfl.ch/image/32763/200x112.jpg", "visual_large_url": "https://memento.epfl.ch/image/32763/720x405.jpg", "visual_maxsize_url": "https://memento.epfl.ch/image/32763/max-size.jpg", "lang": "en", "start_date": "2026-04-23", "end_date": "2026-04-23", "start_time": "17:30:00", "end_time": null, "description": "<p>Thesis Directors: Prof. V. Tileli, Dr V. C. A. Boureau<br>\r\nMaterials Science and Engineering doctoral program<br>\r\nThesis Nr. 11634<br>\r\n<br>\r\nTo take part in the public defense, please contact directly the speaker</p>", "image_description": "", "creation_date": "2026-03-20T13:57:20", "last_modification_date": "2026-03-20T13:57:23", "link_label": "", "link_url": "", "canceled": "False", "cancel_reason": "", "place_and_room": "ELA 2", "url_place_and_room": "https://plan.epfl.ch/?room==ELA%202", "url_online_room": "", "spoken_languages": [], "speaker": "<a href=\"mailto:[email protected]\"><strong>Pierpaolo RANIERI</strong></a>", "organizer": "", "contact": "<a href=\"mailto:[email protected]\"><strong>Pierpaolo RANIERI</strong></a>", "is_internal": "False", "theme": "", "vulgarization": { "id": 1, "fr_label": "Tout public", "en_label": "General public" }, "registration": { "id": 3, "fr_label": "Entrée libre", "en_label": "Free" }, "keywords": "EDMX", "file": null, "icalendar_url": "https://memento.epfl.ch/event/export/120136/", "category": { "id": 12, "code": "SOUTE", "fr_label": "Soutenances de thèses", "en_label": "Thesis defenses", "activated": true }, "academic_calendar_category": null, "domains": [], "mementos": [ "https://memento.epfl.ch/api/v1/mementos/8/?format=api", "https://memento.epfl.ch/api/v1/mementos/1/?format=api", "https://memento.epfl.ch/api/v1/mementos/6/?format=api", "https://memento.epfl.ch/api/v1/mementos/284/?format=api" ] }, { "id": 70155, "title": "CAS Building Resilient Supply Chains", "slug": "cas-building-resilient-supply-chains", "event_url": "https://memento.epfl.ch/event/cas-building-resilient-supply-chains", "visual_url": "https://memento.epfl.ch/image/31615/200x112.jpg", "visual_large_url": "https://memento.epfl.ch/image/31615/720x405.jpg", "visual_maxsize_url": "https://memento.epfl.ch/image/31615/max-size.jpg", "lang": "en", "start_date": "2026-04-23", "end_date": "2026-06-27", "start_time": null, "end_time": null, "description": "<u>Implement agile, risk-ready value chains</u><br>\r\n<br>\r\nWhile modern industry is still adapting to the emergence of Industry 4.0, a new opportunity space is starting to surface. The ability to balance sustainability goals, people talent and resilient value chains is quickly becoming the defining differentiator for operations professionals. Profound change currents are reshaping supply chains on a global scale. Those who wish to stay ahead of this change need to move from supply chain management to value chain management thinking. <strong>Move beyond simply managing operations to realizing growth, innovation and sustainability goals.</strong><br>\r\n<br>\r\nThis Certificate of Advanced Studies (formally entitled CAS in Resilient Value Chain Management) runs from April 23<sup>rd</sup> to June 27<sup>th</sup>, 2026 at the EPFL Campus in Lausanne.<br>\r\n \r\n<ul>\r\n\t<li>12 days on Campus</li>\r\n\t<li>4 modules</li>\r\n\t<li>Flexible format</li>\r\n\t<li>Part-time</li>\r\n\t<li>15 ECTS</li>\r\n</ul>", "image_description": "", "creation_date": "2025-10-20T18:18:35", "last_modification_date": "2026-03-30T10:10:40", "link_label": "Webpage", "link_url": "https://www.epfl-executive-education.ch/cas-resilient-value-chain/", "canceled": "False", "cancel_reason": "", "place_and_room": "", "url_place_and_room": "", "url_online_room": "", "spoken_languages": [ "https://memento.epfl.ch/api/v1/spoken_languages/2/?format=api" ], "speaker": "", "organizer": "<a href=\"http://go.epfl.ch/srvc\">EPFL Executive Education - Sustainable Resilient Value Chains</a>", "contact": "[email protected]", "is_internal": "False", "theme": "", "vulgarization": { "id": 1, "fr_label": "Tout public", "en_label": "General public" }, "registration": { "id": 1, "fr_label": "Sur inscription", "en_label": "Registration required" }, "keywords": "", "file": null, "icalendar_url": "https://memento.epfl.ch/event/export/118200/", "category": { "id": 4, "code": "DIVERS", "fr_label": "Autres types d’événement", "en_label": "Miscellaneous", "activated": true }, "academic_calendar_category": null, "domains": [], "mementos": [ "https://memento.epfl.ch/api/v1/mementos/1/?format=api", "https://memento.epfl.ch/api/v1/mementos/3/?format=api", "https://memento.epfl.ch/api/v1/mementos/6/?format=api", "https://memento.epfl.ch/api/v1/mementos/437/?format=api", "https://memento.epfl.ch/api/v1/mementos/438/?format=api" ] }, { "id": 71054, "title": "BMI Seminar // Pierre Le Merre: A prefrontal cortex map based on single-neuron activity", "slug": "bmi-seminar-pierre-le-merre-a-prefrontal-cortex-ma", "event_url": "https://memento.epfl.ch/event/bmi-seminar-pierre-le-merre-a-prefrontal-cortex-ma", "visual_url": "https://memento.epfl.ch/image/32510/200x112.jpg", "visual_large_url": "https://memento.epfl.ch/image/32510/720x405.jpg", "visual_maxsize_url": "https://memento.epfl.ch/image/32510/max-size.jpg", "lang": "en", "start_date": "2026-04-24", "end_date": "2026-04-24", "start_time": "09:15:00", "end_time": "10:15:00", "description": "<p>TBD</p>", "image_description": "", "creation_date": "2026-02-05T16:08:19", "last_modification_date": "2026-02-16T13:33:14", "link_label": "Web Page", "link_url": "https://ki.se/en/people/pierre-le-merre", "canceled": "False", "cancel_reason": "", "place_and_room": "SV 2510", "url_place_and_room": "", "url_online_room": "", "spoken_languages": [ "https://memento.epfl.ch/api/v1/spoken_languages/2/?format=api" ], "speaker": "Pierre Le Merre, Lyon Neuroscience Research Centre, University of Lyon | Karolinska Institute, Stockholm", "organizer": "BMI - LSENS Host: Carl Petersen", "contact": "[email protected]", "is_internal": "False", "theme": "", "vulgarization": { "id": 2, "fr_label": "Public averti", "en_label": "Informed public" }, "registration": { "id": 3, "fr_label": "Entrée libre", "en_label": "Free" }, "keywords": "", "file": null, "icalendar_url": "https://memento.epfl.ch/event/export/119598/", "category": { "id": 1, "code": "CONF", "fr_label": "Conférences - Séminaires", "en_label": "Conferences - Seminars", "activated": true }, "academic_calendar_category": null, "domains": [], "mementos": [ "https://memento.epfl.ch/api/v1/mementos/1/?format=api", "https://memento.epfl.ch/api/v1/mementos/221/?format=api", "https://memento.epfl.ch/api/v1/mementos/9/?format=api", "https://memento.epfl.ch/api/v1/mementos/19/?format=api", "https://memento.epfl.ch/api/v1/mementos/6/?format=api" ] }, { "id": 70968, "title": "From Functional Genomics to Tissue Models: Investigating Pseudomonas aeruginosa-Macrophage Interactions", "slug": "from-functional-genomics-to-tissue-models-invest-2", "event_url": "https://memento.epfl.ch/event/from-functional-genomics-to-tissue-models-invest-2", "visual_url": "https://memento.epfl.ch/image/32356/200x112.jpg", "visual_large_url": "https://memento.epfl.ch/image/32356/720x405.jpg", "visual_maxsize_url": "https://memento.epfl.ch/image/32356/max-size.jpg", "lang": "en", "start_date": "2026-04-24", "end_date": "2026-04-24", "start_time": "17:00:00", "end_time": null, "description": "<p>Thesis Director: Prof. A. L. A. Persat,<br>\r\nBiotechnology and Bioengineering doctoral program<br>\r\nThesis Nr. 11340<br>\r\n<br>\r\nTo take part in the public defense, please contact directly the speaker</p>", "image_description": "", "creation_date": "2026-01-27T10:25:22", "last_modification_date": "2026-01-27T10:25:22", "link_label": "", "link_url": "", "canceled": "False", "cancel_reason": "", "place_and_room": "SV 1717", "url_place_and_room": "https://plan.epfl.ch/?room==SV%201717", "url_online_room": "", "spoken_languages": [], "speaker": "<strong>Tania DISTLER</strong>", "organizer": "", "contact": "<strong>Tania DISTLER</strong>", "is_internal": "False", "theme": "", "vulgarization": { "id": 1, "fr_label": "Tout public", "en_label": "General public" }, "registration": { "id": 3, "fr_label": "Entrée libre", "en_label": "Free" }, "keywords": "EDBB", "file": null, "icalendar_url": "https://memento.epfl.ch/event/export/119475/", "category": { "id": 12, "code": "SOUTE", "fr_label": "Soutenances de thèses", "en_label": "Thesis defenses", "activated": true }, "academic_calendar_category": null, "domains": [], "mementos": [ "https://memento.epfl.ch/api/v1/mementos/1/?format=api", "https://memento.epfl.ch/api/v1/mementos/6/?format=api", "https://memento.epfl.ch/api/v1/mementos/9/?format=api", "https://memento.epfl.ch/api/v1/mementos/111/?format=api" ] }, { "id": 71272, "title": "An Artificial Sphincter based on Dielectric Elastomer Actuators in the context of Urinary Incontinence", "slug": "an-artificial-sphincter-based-on-dielectric-elasto", "event_url": "https://memento.epfl.ch/event/an-artificial-sphincter-based-on-dielectric-elasto", "visual_url": "https://memento.epfl.ch/image/32628/200x112.jpg", "visual_large_url": "https://memento.epfl.ch/image/32628/720x405.jpg", "visual_maxsize_url": "https://memento.epfl.ch/image/32628/max-size.jpg", "lang": "en", "start_date": "2026-04-24", "end_date": "2026-04-24", "start_time": "17:00:00", "end_time": null, "description": "<p>Thesis Directors: Prof. Y. Perriard, Dr Y. R. C. Civet<br>\r\nAdvanced Manufacturing doctoral program<br>\r\nThesis Nr. 11322<br>\r\n<br>\r\nTo take part in the public defense, please contact directly the speaker</p>", "image_description": "", "creation_date": "2026-03-02T10:55:01", "last_modification_date": "2026-03-02T10:55:01", "link_label": "", "link_url": "", "canceled": "False", "cancel_reason": "", "place_and_room": "MC A1 272", "url_place_and_room": "https://plan.epfl.ch/?room==MC%20A1%20272", "url_online_room": "https://epfl.zoom.us/j/65298674184?pwd=6zkxmv1la6OeamfImj4QIhp94vzkrl.1", "spoken_languages": [], "speaker": "<strong>Quentin Philippe Mario DE MENECH</strong>", "organizer": "", "contact": "<strong>Quentin Philippe Mario DE MENECH</strong>", "is_internal": "False", "theme": "", "vulgarization": { "id": 1, "fr_label": "Tout public", "en_label": "General public" }, "registration": { "id": 3, "fr_label": "Entrée libre", "en_label": "Free" }, "keywords": "EDAM", "file": null, "icalendar_url": "https://memento.epfl.ch/event/export/119932/", "category": { "id": 12, "code": "SOUTE", "fr_label": "Soutenances de thèses", "en_label": "Thesis defenses", "activated": true }, "academic_calendar_category": null, "domains": [], "mementos": [ "https://memento.epfl.ch/api/v1/mementos/8/?format=api", "https://memento.epfl.ch/api/v1/mementos/1/?format=api", "https://memento.epfl.ch/api/v1/mementos/6/?format=api", "https://memento.epfl.ch/api/v1/mementos/347/?format=api" ] }, { "id": 71223, "title": "How to Prepare Successful Grant Proposals: a course for Postdocs", "slug": "how-to-prepare-successful-grant-proposals-a-cou-12", "event_url": "https://memento.epfl.ch/event/how-to-prepare-successful-grant-proposals-a-cou-12", "visual_url": "https://memento.epfl.ch/image/32587/200x112.jpg", "visual_large_url": "https://memento.epfl.ch/image/32587/720x405.jpg", "visual_maxsize_url": "https://memento.epfl.ch/image/32587/max-size.jpg", "lang": "en", "start_date": "2026-04-24", "end_date": "2026-04-24", "start_time": null, "end_time": null, "description": "<strong>The Research Office is offering a course for EPFL postdoctoral researchers and senior PhD students entitled “How to prepare successful grant proposals”.</strong><br>\r\n<br>\r\nThis course will teach participants where to look for appropriate fellowship and research funding opportunities, the ins and outs of the application process itself, and how to prepare a written proposal. It is primarily intended for EPFL postdocs and senior PhD students who want to start preparing their postdoctoral fellowship applications.<br>\r\n<br>\r\n<strong>When: Friday 24<sup>th</sup> April 2026, 11:30-3 pm, in person, </strong><a href=\"https://plan.epfl.ch/?dim_floor=4&lang=en&dim_lang=en&tree_groups=centres_nevralgiques_grp%2Cmobilite_acces_grp%2Crestauration_et_commerces_grp%2Censeignement%2Cservices_campus_grp%2Cequipements_grp&tree_group_layers_centres_nevralgiques_grp=&tree_group_layers_mobilite_acces_grp=metro&tree_group_layers_restauration_et_commerces_grp=&tree_group_layers_enseignement=guichet_etudiants&tree_group_layers_services_campus_grp=information_epfl&tree_group_layers_equipements_grp=&baselayer_ref=grp_backgrounds&map_x=2532712&map_y=1152288&map_zoom=14\"><strong>BC 420</strong></a><strong> (Lausanne Campus). Lunch will be provided.</strong><br>\r\n<br>\r\nParticipants can apply to a follow-up “Writing Clinic” during which they will develop their own research proposal with live feedback from their peers. Dates: 25<sup>th </sup>May, 9<sup>th</sup> and 23<sup>rd</sup> June 2026.<br>\r\n<br>\r\nRegistration is now open and interested postdocs and senior PhD students should <a href=\"https://forms.office.com/e/0HxeCin2xA\">register for the course</a> by Monday 20<sup>th</sup> April 2026 midday. Further details on the course can be found <a href=\"https://www.epfl.ch/research/management-support/grant-writing/trainings/postdoc/\">here</a>.<br>\r\n<br>\r\nAny questions can be directed to the <a href=\"mailto:[email protected]\">EPFL Research Office</a>", "image_description": "", "creation_date": "2026-02-24T16:09:28", "last_modification_date": "2026-02-24T16:27:53", "link_label": "", "link_url": "", "canceled": "False", "cancel_reason": "", "place_and_room": "", "url_place_and_room": "", "url_online_room": "", "spoken_languages": [], "speaker": "", "organizer": "", "contact": "<a href=\"mailto:[email protected]?subject=How%20to%20Prepare%20Successful%20Grant%20Proposals%3A%20a%20course%20for%20Postdocs\">Research Office</a>", "is_internal": "False", "theme": "", "vulgarization": { "id": 1, "fr_label": "Tout public", "en_label": "General public" }, "registration": { "id": 3, "fr_label": "Entrée libre", "en_label": "Free" }, "keywords": "", "file": null, "icalendar_url": "https://memento.epfl.ch/event/export/119864/", "category": { "id": 15, "code": "FORM", "fr_label": "Formations internes", "en_label": "Internal trainings", "activated": true }, "academic_calendar_category": null, "domains": [], "mementos": [ "https://memento.epfl.ch/api/v1/mementos/1/?format=api", "https://memento.epfl.ch/api/v1/mementos/3/?format=api", "https://memento.epfl.ch/api/v1/mementos/4/?format=api", "https://memento.epfl.ch/api/v1/mementos/5/?format=api", "https://memento.epfl.ch/api/v1/mementos/6/?format=api", "https://memento.epfl.ch/api/v1/mementos/8/?format=api", "https://memento.epfl.ch/api/v1/mementos/9/?format=api", "https://memento.epfl.ch/api/v1/mementos/140/?format=api", "https://memento.epfl.ch/api/v1/mementos/27/?format=api" ] }, { "id": 71179, "title": "Full speed... But Where are Women in Formula 1?", "slug": "full-speed-but-where-are-women-in-formula-1", "event_url": "https://memento.epfl.ch/event/full-speed-but-where-are-women-in-formula-1", "visual_url": "https://memento.epfl.ch/image/32754/200x112.jpg", "visual_large_url": "https://memento.epfl.ch/image/32754/720x405.jpg", "visual_maxsize_url": "https://memento.epfl.ch/image/32754/max-size.jpg", "lang": "en", "start_date": "2026-04-27", "end_date": "2026-04-27", "start_time": "18:00:00", "end_time": "21:00:00", "description": "<p>Extreme speed, millimeter precision, cutting-edge engineering, split-second strategic decisions — a world where every detail counts and performance is everything.<br>\r\nBut behind this high-tech spectacle, one question remains:<br>\r\n<br>\r\n<strong>Where are women?</strong><br>\r\n<br>\r\nIn 2026, while F1 embodies innovation and excellence, it remains one of the most male-dominated professional sports.<br>\r\nCoincidence… or a reflection of deeper, systemic mechanisms?<br>\r\n<br>\r\nThe EPFL Alumni Women Club, in partnership with EPFL Alumni, invites you to go beyond the surface, to understand the forces holding women back in F1.<br>\r\n<br>\r\nIn this open discussion, we will tackle the real questions:<br>\r\n— Is Formula 1 truly accessible to everyone?<br>\r\n— Are the barriers cultural, educational, physical… or systemic?<br>\r\n— Who decides today who gets to join the grid?<br>\r\n— And what role do the media, sponsors, and public play in maintaining—or challenging—this imbalance?<br>\r\n<br>\r\nA high-level exchange at the crossroads of sport, technology, and societal issues. This event offers a deep dive into the backstage of an iconic sport, decoding its codes and structures.<br>\r\nThe goal: to understand, but also to explore concrete levers for change.<br>\r\n<br>\r\nWe are honored to welcome key figures from the paddock:<br>\r\n<br>\r\n<strong>- Mattia Binotto</strong> EPFL engineer, Head of Audi F1 Project: Audi officially enters the FIA Formula 1 World Championship in 2026<br>\r\n<strong>- Laura Villars </strong>First woman candidate for FIA presidency 2025, and racing driver<br>\r\n<strong>- Vita Marina</strong> Project Manager of Power Unit Mechanical Systems at Audi Revolut F1 Team<br>\r\n- and <strong>other exclusive guests !</strong><br>\r\n<br>\r\n<strong>And to cap it off:</strong><br>\r\nExperience the new <a href=\"http://epflracingteam.ch/fr/\" rel=\"noopener noreferrer\" target=\"_blank\">EPFL Racing Team</a> car in an exclusive first look, followed by a guided tour of their workshops and laboratories.<br>\r\n<br>\r\nEvent in English</p>", "image_description": "", "creation_date": "2026-02-19T09:33:43", "last_modification_date": "2026-03-19T09:40:36", "link_label": "REGISTRATION", "link_url": "https://epflalumni.ch/fr/event/save-the-date-women-in-formula-1/2026/02/19/1102", "canceled": "False", "cancel_reason": "", "place_and_room": "RLC E1 240", "url_place_and_room": "https://plan.epfl.ch/?room==RLC%20E1%20240", "url_online_room": "", "spoken_languages": [ "https://memento.epfl.ch/api/v1/spoken_languages/2/?format=api" ], "speaker": "", "organizer": "<a href=\"https://epflalumni.ch/fr/group/women-s-club/34/about\" rel=\"noopener noreferrer\" target=\"_blank\">EPFL Alumni Women Club</a> & <a href=\"https://epflalumni.ch/fr\">EPFL Alumni</a>", "contact": "<a href=\"mailto:[email protected]?subject=Full%20speed...%20But%20Where%20are%20Women%20in%20Formula%201%3F\">Emmanuelle Yanguas</a>", "is_internal": "False", "theme": "", "vulgarization": { "id": 1, "fr_label": "Tout public", "en_label": "General public" }, "registration": { "id": 1, "fr_label": "Sur inscription", "en_label": "Registration required" }, "keywords": "", "file": null, "icalendar_url": "https://memento.epfl.ch/event/export/119794/", "category": { "id": 1, "code": "CONF", "fr_label": "Conférences - Séminaires", "en_label": "Conferences - Seminars", "activated": true }, "academic_calendar_category": null, "domains": [], "mementos": [ "https://memento.epfl.ch/api/v1/mementos/1/?format=api", "https://memento.epfl.ch/api/v1/mementos/8/?format=api", "https://memento.epfl.ch/api/v1/mementos/21/?format=api", "https://memento.epfl.ch/api/v1/mementos/6/?format=api" ] }, { "id": 71345, "title": "MechE Colloquium : Instability and breakdown phenomena in vortical flows", "slug": "meche-colloquium-instability-and-breakdown-pheno-2", "event_url": "https://memento.epfl.ch/event/meche-colloquium-instability-and-breakdown-pheno-2", "visual_url": "https://memento.epfl.ch/image/32805/200x112.jpg", "visual_large_url": "https://memento.epfl.ch/image/32805/720x405.jpg", "visual_maxsize_url": "https://memento.epfl.ch/image/32805/max-size.jpg", "lang": "en", "start_date": "2026-04-28", "end_date": "2026-04-28", "start_time": "12:00:00", "end_time": "13:00:00", "description": "<strong>Summary</strong><br>\r\nVortical structures generated by fixed or rotating lifting surfaces play a central role in many aerodynamic and hydrodynamic flows. Their stability and eventual breakdown influence wake dynamics, mixing processes, and overall flow performance. This seminar presents two recent studies exploring vortex stability and vortex breakdown.<br>\r\nPart I – Short-wave instability of a helical vortex<br>\r\nThe first part of the seminar discusses the short-wave instability of a helical vortex generated by a rotating blade. Combining experimental dye visualisations, numerical simulations, and theoretical analysis, the study identifies displacement perturbations whose wavelengths are small relative to the helix radius and pitch but may remain large compared with the vortex core size. Stability analysis based on experimentally measured vortex profiles reveals broad bands of unstable wavenumbers for several vortex bending modes. These results differ from predictions of existing theories for short-wave vortex instability. Similar instability modes are also observed in arrays of straight vortices, indicating that the phenomenon is not related to vortex curvature. A theoretical examination of the dispersion relation of Kelvin modes for the measured vortex profiles uncovers a previously unidentified family of modes associated with the specific vorticity distribution. Their non-resonant interaction through the strain field provides a plausible explanation for the experimentally observed instability features.<br>\r\nPart II – Two-phase wing-tip vortex breakdown<br>\r\nThe second part presents the discovery of a new flow feature observed in the wake of a rectangular wing in water: the breakdown of the wing-tip vortex triggered by the injection of air into the vortex core downstream of the wing. Experiments show that, for certain combinations of Reynolds number and angle of attack, a stationary air bubble becomes trapped within the vortex core at a finite distance behind the wing and can persist for several minutes even after the air injection is stopped. Under different conditions, the bubble may drift upstream or downstream, or it may disintegrate immediately. Measurements of bubble properties and vortex characteristics reveal that the breakdown behaviour depends primarily on the vortex circulation and on the axial flow component within the core. The formation of a stable breakdown bubble occurs only when a velocity excess relative to the free stream is present.<br>\r\nThe two studies highlight new mechanisms governing the stability and transformation of vortical flows, offering insight into the dynamics of vortex instabilities and vortex-core modifications in fluid systems.<br>\r\n<br>\r\n<br>\r\n<strong>Biography</strong><br>\r\nThomas Leweke graduated from RWTH Aachen University in Germany in 1990 with a “Diplom” (Master) in Physics. He completed his PhD in 1994 at the Université de Provence in Marseille, on the experimental study and modelling of bluff-body wakes. After a post-doctoral stay at Cornell University on vortex instabilities, he joined the IRPHE institute in Marseille in 1996 as a CNRS Researcher and became a Senior Researcher in 2007. His research focusses on the experimental study of fundamental aspects of fluid mechanics, especially in vortex dynamics and fluid-structure interactions, with relevance to applications. He was the co-organiser of a conference series on Bluff-Boddy Wakes and Vortex-Induced Vibrations (BBVIV), and an associate editor for the Journal of Fluids and Structures and the Journal of Visualization", "image_description": "", "creation_date": "2026-03-10T14:46:55", "last_modification_date": "2026-03-26T08:56:55", "link_label": "", "link_url": "", "canceled": "False", "cancel_reason": "", "place_and_room": "MED 0 1418", "url_place_and_room": "https://plan.epfl.ch/?room==MED%200%201418", "url_online_room": "https://epfl.zoom.us/j/61360740951", "spoken_languages": [ "https://memento.epfl.ch/api/v1/spoken_languages/2/?format=api" ], "speaker": "Prof. Thomas Leweke, IRPHE, CNRS, Marseille, France", "organizer": "MechE Colloquium", "contact": "Prof. Eunok Yim", "is_internal": "False", "theme": "", "vulgarization": { "id": 1, "fr_label": "Tout public", "en_label": "General public" }, "registration": { "id": 3, "fr_label": "Entrée libre", "en_label": "Free" }, "keywords": "MechE Colloquium : phenomena in vortical flows", "file": null, "icalendar_url": "https://memento.epfl.ch/event/export/120036/", "category": { "id": 1, "code": "CONF", "fr_label": "Conférences - Séminaires", "en_label": "Conferences - Seminars", "activated": true }, "academic_calendar_category": null, "domains": [], "mementos": [ "https://memento.epfl.ch/api/v1/mementos/8/?format=api", "https://memento.epfl.ch/api/v1/mementos/1/?format=api", "https://memento.epfl.ch/api/v1/mementos/232/?format=api", "https://memento.epfl.ch/api/v1/mementos/270/?format=api", "https://memento.epfl.ch/api/v1/mementos/6/?format=api" ] }, { "id": 71455, "title": "Information session - Leading Sustainable Business Operations", "slug": "information-session-leading-sustainable-business-3", "event_url": "https://memento.epfl.ch/event/information-session-leading-sustainable-business-3", "visual_url": "https://memento.epfl.ch/image/32802/200x112.jpg", "visual_large_url": "https://memento.epfl.ch/image/32802/720x405.jpg", "visual_maxsize_url": "https://memento.epfl.ch/image/32802/max-size.jpg", "lang": "en", "start_date": "2026-04-28", "end_date": "2026-04-28", "start_time": "18:00:00", "end_time": "18:30:00", "description": "<strong>Discover how to lead sustainable business operations.</strong><br>\r\n<br>\r\nJoin our online information session to get to know the EPFL program “Leading Sustainable Business Operations” (CAS in Circular Value Networks) with Executive Director Ms. Elaine Moran.<br>\r\nLearn how this program empowers professionals to drive sustainability and circular transformation — and get all your questions answered.\r\n<div class=\"base-options-2\">\r\n<div class=\"is-no-asterisk time-view zm-form-item\">\r\n<div class=\"zm-form-item__header\"> </div>\r\n</div>\r\n</div>\r\n<br>\r\n<br>\r\n<strong>> <a href=\"https://epfl.zoom.us/meeting/register/TDnStDV8ROShc2_olwiNgg\">Register here</a></strong><br>\r\n<br>\r\n<br>\r\n<br>\r\n+ info & agenda: <a contenteditable=\"false\" href=\"https://go.epfl.ch/srvc-infosessions\" title=\"https://go.epfl.ch/srvc-infosessions\">go.epfl.ch/srvc-infosessions</a>", "image_description": "", "creation_date": "2026-03-25T16:57:08", "last_modification_date": "2026-03-25T17:01:00", "link_label": "Registration", "link_url": "https://epfl.zoom.us/meeting/register/TDnStDV8ROShc2_olwiNgg", "canceled": "False", "cancel_reason": "", "place_and_room": "", "url_place_and_room": "", "url_online_room": "https://epfl.zoom.us/meeting/register/TDnStDV8ROShc2_olwiNgg", "spoken_languages": [ "https://memento.epfl.ch/api/v1/spoken_languages/2/?format=api" ], "speaker": "- Elaine Moran, <em>SRVC Executive Director</em>", "organizer": "EPFL Executive Education", "contact": "[email protected]", "is_internal": "False", "theme": "", "vulgarization": { "id": 1, "fr_label": "Tout public", "en_label": "General public" }, "registration": { "id": 1, "fr_label": "Sur inscription", "en_label": "Registration required" }, "keywords": "", "file": null, "icalendar_url": "https://memento.epfl.ch/event/export/120186/", "category": { "id": 4, "code": "DIVERS", "fr_label": "Autres types d’événement", "en_label": "Miscellaneous", "activated": true }, "academic_calendar_category": null, "domains": [], "mementos": [ "https://memento.epfl.ch/api/v1/mementos/1/?format=api", "https://memento.epfl.ch/api/v1/mementos/3/?format=api", "https://memento.epfl.ch/api/v1/mementos/437/?format=api", "https://memento.epfl.ch/api/v1/mementos/438/?format=api", "https://memento.epfl.ch/api/v1/mementos/6/?format=api" ] } ] }
