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Willem van Valkenburg made EDEN Fellow

Willem van Valkenburg made Eden Fellow We are proud to announce that, Willem van Valkenburg, Executive Director of the TU Delft Extension School for Continuing Education has been made European Distance and E-Learning Network (EDEN) Fellow . He receives this distinction for his outstanding contribution to promoting digital learning in Europe. Van Valkenbur g joins the EDEN Fellows Council and in this role will draw upon his extensive expertise in online, open and distance learning to provide strategic input for the Management Board. He will be an ambassador for EDEN in Europe and beyond. Willem has made it his life’s work to advocate for online, accessible education for professionals accross the globe, and sharing resources far and wide. He has been a driving force in positioning the Extension School as a leader among European providers of Lifelong Learning. He, and his team, recently also secured a grant from the Dutch government that will help to streamline operations and cement that position. His vision has been instrumental in ensuring that our courses and programmes give individuals the knowledge and skills to contribute to positive societal change and continue to adapt to this rapidly evolving world. Van Valkenburg expresses his delight at the award, “ The goal is always to make the biggest impact possible, for the individual and society. None of us are in this field for the accolades, but receiving recognition from your peers that you are achieving what you set out to do, is of course immensely gratifying.” He looks forward to furthering the good work of EDEN Digital Learning Europe, playing an active role in the network to promote best practices among all knowledge institutions in Europe whether they are beginning their Lifelong Learning journey or are further along the road. EDEN Digital Learning Europe This is a not-for-profit international educational association and professional community for smart learning. Established following the UK's exit from the European Union, its mission is to foster knowledge exchange and enhance understanding among professionals in distance and e-learning. It seeks to facilitate the sharing of best practices and policies throughout Europe and beyond. The goal is always to make the biggest impact possible, for the individual and society. None of us are in this field for the accolades, but receiving recognition from your peers that you are achieving what you set out to do, is of course immensely gratifying. Willem van Valkenburg

A phase inversion strategy enables thicker NMC811 electrodes for high-energy density Li-ion batteries.

Increasing the electrode thickness, thereby reducing the proportion of inactive cell components, is one way to achieve higher-energy-density lithium-ion batteries. However, when thicker electrodes are produced using the state-of-the-art slurry casting/drying procedure, this results in higher electronic and ionic overpotentials and/or mechanical failure induced by binder migration. Ethanol-induced phase inversion can effectively address these issues, as the inclusion of this processing step can produce robust, thick battery electrodes with improved electrochemical performance. These electrodes achieve higher available storage capacity per square centimeter and volume, using proven scalable technologies. Pranav Karanth, Mark Weijers, Pierfrancesco Ombrini, Davide Ripepi, Frans Ooms e Fokko M. Mulder A recent publication describing how these high capacity electrodes were obtained and tested electrochemically can be found in: A phase inversion strategy for low-tortuosity and ultrahigh-mass-loading nickel-rich layered oxide electrodes: Cell Reports Physical Science H2020 project ‘SOLIDIFY’ Within the H2020 Solidify consortium comprised of, among others, IMEC, EMPA, Fraunhofer, VDL, Umicore, and TU Delft, research was performed to arrive at high energy density solid-state lithium-metal batteries. The phase inversion-based NMC-811 cathodes that were developed by researchers at MECS/ ChemE/ TNW have been selected for the demonstrators resulting from the project, where these electrodes are infiltrated with the solid electrolyte precursor to arrive at a solid cathode composite, and then combined with a thin solid-electrolyte separator and a lithium metal anode. Pranav Karanth Mark Weijers Fokko Mulder Read the publication here

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Students Amos Yusuf, Mick Dam & Bas Brouwer winners of Mekel Prize 2024

Master students Amos Yusuf, from the ME faculty (Mick Dam, from the EEMCS faculty and graduate Bas Brouwer have won the Mekel Prize 2024 for the best extra scientific activity at TU Delft: the development of an initiative that brings master students into the classroom teaching sciences to the younger generations. The prize was ceremonially awarded by prof Tim van den Hagen on 13 November after the Van Hasselt Lecture at the Prinsenhof, Delft. They received a statue of Professor Jan Mekel and 1.500,- to spend on their project. Insights into climate change are being openly doubted. Funding for important educational efforts and research are being withdrawn. Short clips – so called “reels” – on Youtube and TikTok threaten to simplify complex political and social problems. AI fakes befuddle what is true and what is not. The voices of science that contribute to those discussion with modesty, careful argument and scepticism, are drowned in noise. This poses a threat for universities like TU Delft, who strive to increase student numbers, who benefit from diverse student populations and aim to pass on their knowledge and scientific virtues to the next generation. It is, therefore, alarming that student enrolments to Bachelor and Master Programs at TU Delft have declined in the past year. Students in front of the class The project is aimed to make the sciences more appealing to the next generation. They have identified the problem that students tend miss out on the opportunity of entering a higher education trajectory in the Beta sciences – because they have a wrong picture of such education. In their mind, they depict it as boring and dry. In his pilot lecture at the Stanislas VMBO in Delft, Amos Yusuf has successfully challenged this image. He shared his enthusiasm for the field of robotics and presented himself as a positive role model to the pupils. And in return the excitement of the high school students is palpable in the videos and pictures from the day. The spark of science fills their eyes. Bas Brouwer Mick Dam are the founders of NUVO – the platform that facilitates the engagement of Master Students in high school education in Delft Their efforts offer TU Delft Master Students a valuable learning moment: By sharing insights from their fields with pupils at high school in an educational setting, our students can find identify their own misunderstandings of their subject, learn to speak in front of non-scientific audiences and peak into education as a work field they themselves might not have considered. An extraordinary commitment According to the Mekel jury, the project scored well on all the criteria (risk mitigation, inclusiveness, transparency and societal relevance). However, it was the extraordinary commitment of Amos who was fully immersed during his Master Project and the efforts of Brouwer and Dam that brought together teaching and research which is integral to academic culture that made the project stand out. About the Mekel Prize The Mekel Prize will be awarded to the most socially responsible research project or extra-scientific activity (e.g. founding of an NGO or organization, an initiative or realization of an event or other impactful project) by an employee or group of employees of TU Delft – projects that showcase in an outstanding fashion that they have been committed from the beginning to relevant moral and societal values and have been aware of and tried to mitigate as much as possible in innovative ways the risks involved in their research. The award recognizes such efforts and wants to encourage the responsible development of science and technology at TU Delft in the future. For furthermore information About the project: https://www.de-nuvo.nl/video-robotica-pilot/ About the Mekel Prize: https://www.tudelft.nl/en/tpm/our-faculty/departments/values-technology-and-innovation/sections/ethics-philosophy-of-technology/mekel-prize

Veiligere en efficiëntere bloedvatbehandelingen door innovatieve kathetertechnologie

Wereldwijd worden jaarlijks meer dan 200 miljoen katheters gebruikt voor de behandeling van vaatziekten zoals hartaandoeningen en slagadervernauwing. Hoewel essentieel, brengt het gebruik van katheters risico’s met zich mee: wrijving tussen de katheter en de vaatwand kan complicaties veroorzaken. Een nieuwe technologie, ontwikkeld door Mostafa Atalla en zijn team, biedt een oplossing. Met één druk op de knop kan de wrijving van de katheter worden aangepast, van maximale grip naar volledige gladheid. Deze innovatie belooft niet alleen veiligere, maar ook efficiëntere endovasculaire procedures mogelijk te maken. De resultaten zijn gepubliceerd in het wetenschappelijk tijdschrift IEEE. Slimme katheter met instelbare wrijving Het nieuwe katheterprototype is uitgerust met geavanceerde technologie die de wrijving tussen de katheter en vaatwand nauwkeurig reguleert via ultrasone trillingen. Dit mechanisme zet via ultrasone trillingen de dunne vloeistoflaag onder druk waardoor de wrijving dynamisch kan worden aangepast: lage wrijving voor soepele navigatie door bloedvaten en hogere wrijving voor optimale stabiliteit tijdens een procedure. Tests tonen aan dat deze techniek de wrijving op harde oppervlakken met gemiddeld 60% vermindert en op zachte oppervlakken met 11%. Veelbelovende resultaten Bij experimenten op dierlijk aortaweefsel heeft het prototype zijn potentieel bewezen. Deze innovatie kan niet alleen bij vaatbehandelingen worden ingezet, maar mogelijk ook bij andere medische procedures, zoals interventies in de darmen. De onderzoekers zijn nu bezig de technologie verder te ontwikkelen en te testen op bredere toepassingen. Meer informatie Publicatie DOI: 10.1109/TMRB.2024.3464672 Toward Variable-Friction Catheters Using Ultrasonic Lubrication | IEEE Journals & Magazine | IEEE Xplore Mostafa Atalla: m.a.a.atalla@tudelft.nl/ Aimee Sakes: a.sakes@tudelft.nl Wil je een demonstratie bijwonen of in contact komen met een van de onderzoekers neem contact op met: Fien Bosman, persvoorlichter TU Delft Health: f.j.bosman@tudelft.nl/ 0624953733

Een flexibele backstop als deel van de oplossing voor netcongestie

Uit naam van het TU Delft PowerWeb Institute overhandigen onderzoekers Kenneth Brunninx en Simon Tindemans op 12 november 2024 een Position Paper aan de Tweede Kamer, met een mogelijke oplossing voor de grote netwerkcapaciteit-problemen die in Nederland steeds vaker opspelen. Waarschijnlijk haalt Nederland de klimaatdoelen 2030 niet, en dat komt onder andere doordat de grote industrie niet snel genoeg kan overstappen op elektriciteit, mede doordat er steeds vaker problemen ontstaan rondom netwerkcapaciteit en netcongestie. Naar alle waarschijnlijk zullen die problemen dit decennium eerst zelfs toenemen, voordat ze kunnen afnemen, stellen de onderzoekers. De oplossing die de onderzoekers van het TU Delft PowerWeb Institute aanbieden, is de ‘flexibele backstop’. Met een flexibele backstop kan de huidige capaciteit van het elektriciteitsnet efficiënter gebruikt worden zonder aan veiligheid of betrouwbaarheid in te boeten. Een flexibele backstop is een veiligheidsmechanisme dat semiautomatisch en op korte termijn de hoeveelheid elektriciteit vermindert die een elektrische verbruiker van het elektriciteitsnet kan onttrekken (een elektrische laadpaal of een warmtepomp) of leveren (een PV-installatie). Het is een klein apparaatje dat is aangesloten of ingebouwd in een elektrische verbruiker, zoals een laadpaal of warmtepomp, en dat ‘communiceert’ met de distributienetwerkbeheerder. In geval van acute congestie op het netwerk geeft de netwerkbeheerder een signaal aan het apparaat om de hoeveelheid stroom te beperken. Duitsland heeft recent een vergelijkbaar systeem ingevoerd voor elektrische laadpalen. De backstop wordt enkel geactiveerd in periodes van acute congestieproblemen, nadat alle andere maatregelen uitgeput zijn. “Het opwaarderen van het elektriciteitsnetwerk blijft essentieel, maar zal in de praktijk nog jaren duren. Er is dus behoefte aan kortetermijnoplossingen die geïntegreerd kunnen worden in de langetermijnplanning. Wij, de leden van het TU Delft PowerWeb Institute, roepen de overheid, netwerkbeheerders en regulator op om de flexibele backstop als extra veiligheidsmaatregel voor het netwerk te onderzoeken”, aldus de onderzoekers. Het gehele paper is hier te lezen. Kenneth Bruninx is universiteit hoofddocent bij de faculteit Techniek, Bestuur en Management, waar hij met kwantitatieve modellen energiebeleid, regulering en marktontwerp evalueert. Simon Tindemans is universitair hoofddocent in de Intelligent Electrical Power Grids groep van faculteit Elektrotechniek, Wiskunde en Informatica. Hij doet onder andere onderzoek naar onzekerheid en risicomanagement voor elektriciteitsnetwerken. Het TU Delft PowerWeb Institute ontwerpt het elektriciteitsnetwerk van de toekomst.