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Seminar Graphs&Data@TU Delft - 14th Mar

Seminar Graphs&Data@TU Delft - 14th Mar 14th March 14 March 2024 10:30 till 12:00 | Add to my calendar This is a series of seminars/talks bringing together people from all TU Delft doing research on Graphs and Data who could benefit from the interchange of ideas with colleagues on different topics. This seminar will take place on Thursday 14th March , from 10:30 to 12:00 . Place : KG 02.110, Civil Engineering and Geosciences (CEG), Building 23 Register here for in person attendance Speakers Klaus Hildebrandt Title: Geometry Processing: Discretization, Learning and Analysis Abstract : Advances in 3D capture, fabrication and display technologies over the past decade have led to the intensive use of 3D data in a variety of scientific disciplines and application domains posing a demand for computational methods for analysing and processing geometric data. This talk is divided into three parts. First, we discuss geometric properties of continuous surfaces and their discrete counterparts. In the second part, we look at the construction of convolutions on surfaces in the context of geometric deep learning. Finally, we discuss the analysis and synthesis of shapes using Riemannian shapes spaces. Maosheng Yang Title: Hodge-compositional Edge Gaussian Processes Abstract : We propose principled Gaussian processes (GPs) for modeling functions defined over the edge set of a simplicial 2-complex, a structure similar to a graph in which edges may form triangular faces. This approach is intended for learning flow-type data on networks where edge flows can be characterized by the discrete divergence and curl. Drawing upon the Hodge decomposition, we first develop classes of divergence-free and curl-free edge GPs, suitable for various applications. We then combine them to create Hodge-compositional edge GPs that are expressive enough to represent any edge function. These GPs facilitate direct and independent learning for the different Hodge components of edge functions, enabling us to capture their relevance during hyperparameter optimization. To highlight their practical potential, we apply them for flow data inference in currency exchange, ocean current analysis and water supply networks. Ruben Wiersma Title: DeltaConv: Anisotropic Operators for Geometric Deep Learning on Point Clouds Abstract : Learning from 3D point-cloud data has rapidly gained momentum, motivated by the success of deep learning on images and the increased availability of 3D data. In this talk, we aim to construct anisotropic convolution layers that work directly on the surface derived from a point cloud. This is challenging because of the lack of a global coordinate system for tangential directions on surfaces. We describe DeltaConv, a convolution layer that combines geometric operators from vector calculus to enable the construction of anisotropic filters on point clouds. Because these operators are defined on scalar- and vector-fields, we separate the network into a scalar- and a vector-stream, which are connected by the operators. The vector stream enables the network to explicitly represent, evaluate, and process directional information. Our convolutions are robust and simple to implement and match or improve on state-of-the-art approaches on several benchmarks, while also speeding up training and inference.

Minor

When You have to take a minor in the third year of the BSc programme. In the event of a study delay or a bridging minor, it is possible to spread the courses of the minor over several semesters or even years. Good planning is necessary, so make an appointment with the academic counsellor . Choice of minor and contact information check out minors.tudelft.nl for more information about possible minors. There you will also find the contact details for more information per minor. Self-composed minor TPM The requirements for a self-composed minor can be found on minors.tudelft.nl . You must request a self-composed minor from the Examination Board in advance using the “ self-composed minor ” form. Keep in mind that approval by the TPM Examination Board is independent of admission to the specific minor or individual courses. You must therefore arrange this admission separately. How this should be done differs per university and study programme and we recommend you to contact the study programme of your choice. If you have any questions about this, you can contact the academic counsellor . Minor abroad During your BSc there is the possibility to study abroad. This way, you can take courses that you can use as a minor. More information can be found at studyabroad.tudelft.nl and the faculty specific website. After reading this website, you can contact International Office if you have any questions. Make an apppointment: via e-mail or online agenda E-Health Awareness Self Management Current information can be found on Brightspace More information about internships

Circularity in the Built Environment Graduation Awards 2023: Meet the Winners

From a circular approach to transitional housing to balanced reuse of industrial heritages: at TU Delft’s Faculty of Architecture and the Built Environment many master students direct their efforts towards more circular practises. In October 2023, the jury announced the five winners of the Circularity in the Built Environment Graduation Awards (2022-2023). In an interview, each winner gives an impression of his or her graduation project, explaining how circular practices may be achieved through thoughtful and meticulous design and engineering. Circularity in the Built Environment Graduation Awards The annual Circularity in the Built Environment Graduation Awards recognise the contribution BK graduation students make to the transition toward a circular built environment and aim to stimulate research and innovation in the field. The Circularity in the Built Environment Graduation Awards is an initiative of the Circular Built Environment Hub of the Faculty of Architecture and the Built Environment. The winners of the 2022-2023 edition were selected from four categories: Materials & Components (Tillmann Klein Award), Buildings & Neighbourhoods, Cities & Regions en Management & Policy. From a circular approach to transitional housing to balanced reuse of industrial heritages: at TU Delft’s Faculty of Architecture and the Built Environment many master students direct their efforts towards more circular practises. In October 2023, the jury announced the five winners of the Circularity in the Built Environment Graduation Awards (2022-2023). In a brief interview, each winner gives an impression of his or her graduation project, explaining how circular practices may be achieved through thoughtful and meticulous design and engineering. Meet the Winners Circularity in the Built Environment Graduation Awards The annual Circularity in the Built Environment Graduation Awards recognise the contribution BK graduation students make to the transition toward a circular built environment and aim to stimulate research and innovation in the field. The Circularity in the Built Environment Graduation Awards is an initiative of the Circular Built Environment Hub of the Faculty of Architecture and the Built Environment. The winners of the 2022-2023 edition were selected from four categories: Materials & Components (Tillmann Klein Award), Buildings & Neighbourhoods, Cities & Regions en Management & Policy. Meet the Winners Skin (t)issue: in search of flexible bio-based facade cladding As a Building Technology master’s student Samanwita develops a particular interest in circular facade cladding design concepts. Might there be a renewable alternative for conventional materials like brick, steel and aluminium? “Of course there are historical examples of mud cladding and timber claddings are quite common. But I was looking for a sheet material that can be applied in cladding systems with complex geometries." Read the story of Samanwita Ghosh Samanwita Ghosh | Winner in the category 'Materials & Components (Tillmann Klein Award)' Samanwita Ghosh | Winner in the category 'Materials & Components (Tillmann Klein Award)' Skin (t)issue: in search of flexible bio-based facade cladding As a Building Technology master’s student Samanwita develops a particular interest in circular facade cladding design concepts. Might there be a renewable alternative for conventional materials like brick, steel and aluminium? “Of course there are historical examples of mud cladding and timber claddings are quite common. But I was looking for a sheet material that can be applied in cladding systems with complex geometries." Read the story of Samanwita Ghosh How to make a new home in a Korean high-rise In the decades following the Korean War (1950 – 1953) concrete high-rise apartment buildings came to dominate South Korea’s metropolitan landscape. At the end of their relatively short lives, they are demolished and replaced by bigger versions, which does not make for sustainable building practice. Inspired by open-source architecture and modular building Yeonghwa Choe proposes an alternative approach. Read the story of Yeonghwa Choe Yeonghwa Choe | Winner in the category 'Buildings & Neighbourhoods' Yeonghwa Choe | Winner in the category 'Buildings & Neighbourhoods' How to make a new home in a Korean high-rise In the decades following the Korean War (1950 – 1953) concrete high-rise apartment buildings came to dominate South Korea’s metropolitan landscape. At the end of their relatively short lives, they are demolished and replaced by bigger versions, which does not make for sustainable building practice. Inspired by open-source architecture and modular building Yeonghwa Choe proposes an alternative approach. Read the story of Yeonghwa Choe Gimme better shelter: a circular approach to transitional housing As climate change and conflicts are displacing more and more people across the globe, the demand for shelter and temporary housing is growing. In her master’s thesis Julia Gospodinova zooms in on transitional housing practice and offers designers and decision-makers a method to make practice more circular. “Matching acceptable living conditions with environmental, social and economic sustainability is essential.” Read the story of Julia Gospodinova Julia Gospodinova | Winner in the category 'Buildings & Neighbourhoods' Julia Gospodinova | Winner in the category 'Buildings & Neighbourhoods' Gimme better shelter: a circular approach to transitional housing As climate change and conflicts are displacing more and more people across the globe, the demand for shelter and temporary housing is growing. In her master’s thesis Julia Gospodinova zooms in on transitional housing practice and offers designers and decision-makers a method to make practice more circular. “Matching acceptable living conditions with environmental, social and economic sustainability is essential.” Read the story of Julia Gospodinova Making the right connections in peri-urban China Shiru Liu grew up in a mixed urban and rural region in China’s Greater Bay Area, where she studied architecture and planning. For her master’s degree in Delft she decided to excavate the region’s potential for an industrial transition to circular and bio-based practices. “There’s a lot happening but an integral planning strategy for long-term development is lacking. As a planner I can provide synergy between policy, space and resources.” Read the story of Shiru Liu Shiru Liu | Winner in the category 'Cities & Regions' Shiru Liu | Winner in the category 'Cities & Regions' Making the right connections in peri-urban China Shiru Liu grew up in a mixed urban and rural region in China’s Greater Bay Area, where she studied architecture and planning. For her master’s degree in Delft she decided to excavate the region’s potential for an industrial transition to circular and bio-based practices. “There’s a lot happening but an integral planning strategy for long-term development is lacking. As a planner I can provide synergy between policy, space and resources.” Read the story of Shiru Liu Place for the trades and high-tech: towards balanced reuse of industrial heritage Under what conditions can old industrial buildings in cities offer space for contemporary industry and help prepare for and facilitate a circular economy? Master's student Christiaan Hanse went in search of answers and came up with a strategic assessment framework. Read the story of Christiaan Hanse Christiaan Hanse | Winner in the category 'Management & Policy' Christiaan Hanse | Winner in the category 'Management & Policy' Place for the trades and high-tech: towards balanced reuse of industrial heritage Under what conditions can old industrial buildings in cities offer space for contemporary industry and help prepare for and facilitate a circular economy? Master student Christiaan Hanse went in search of answers and came up with a strategic assessment framework. Read the story of Christiaan Hanse

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NWO funding for flexible power demand in electrically driven industry

NWO is funding two projects to explore ways to make the power demand of industry more flexible, allowing it to better align with future energy supplies. One of these projects, “DEFLAME,” is led by Machteld van den Broek from TU Delft. Solar and wind power generate variable amounts of electricity, while today’s industry demands a relatively constant supply. Adjustments are needed to prepare industry for a power supply based on sun and wind. These adjustments include technical, economic, and social adaptations that are being researched collaboratively by academic institutions and industry partners in these two projects. They also aim to address the barriers that hinder such adaptations. About DEFLAME DEFLAME stands for Direct Electrification of Industrial Heat Demand supported by Flexibility at Multiple Levels and their Exchanges (DEFLAME). This project aims to make the Dutch process industry—particularly the chemical and food industries—more resilient and climate-neutral by electrifying industrial heat using flexible solutions. Van den Broek explains, “For instance, we could scale installations up or down, store heat in underground systems, and/or store electricity in batteries, so that industry can better respond to fluctuations in the energy network.” This effort requires collaboration across multiple levels: technology, individual plants, industrial clusters, and national and international energy systems. DEFLAME focuses on removing obstacles to electrifying low-temperature heat (up to 400°C) with efficient technology. “This kind of heat is used in many processes. It’s essential to drive the right chemical reactions, and it’s also needed for drying, distillation, and evaporation processes. For example, in the crystallisation process to turn sugar beets into sugar, or in salt extraction,” Van den Broek explains. In crystallisation processes, for instance, mechanical vapour recompression can be used. In this process, vapours are compressed by an electrically driven compressor and then reused to heat the evaporator. “This saves energy, as it uses residual heat and allows for electricity to be sourced cleanly. With solar and wind, unlike with gas, the power supply is variable. If we want to electrify industry, businesses and technology need to be able to respond flexibly to this, for example, by storing heat as a cluster or building flexibility into the electrical system.” DEFLAME will identify strategies and institutional arrangements to unlock these solutions from multiple levels and with an interdisciplinary approach. Van den Broek states, “I look forward to taking an important step together with our partners to advance industrial electrification in the Netherlands. This is an essential part of the energy transition.” Consortium Partners The consortium partners include Atlas Copco, Cosun, ISPT, Nobian, Oranje Wind Power II C.V./RWE, Smart Port, Stedin, Tennet, TNO, TU Delft, and TU Eindhoven. Read the NWO press release . Prof.dr.ir. M.A. (Machteld) van den Broek

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

New catheter technology promises safer and more efficient treatment of blood vessels

Each year, more than 200 million catheters are used worldwide to treat vascular diseases, including heart disease and artery stenosis. When navigating into blood vessels, friction between the catheter and the vessel wall can cause major complications. With a new innovative catheter technology, Mostafa Atalla and colleagues can change the friction from having grip to completely slippery with the flick of a switch. Their design improves the safety and efficiency of endovascular procedures. The findings have been published in IEEE. Catheter with variable friction The prototype of the new catheter features advanced friction control modules to precisely control the friction between the catheter and the vessel wall. The friction is modulated via ultrasonic vibrations, which overpressure the thin fluid layer. This innovative variable friction technology makes it possible to switch between low friction for smooth navigation through the vessel and high friction for optimal stability during the procedure. In a proof-of-concept, Atalla and his team show that the prototype significantly reduces friction, averaging 60% on rigid surfaces and 11% on soft surfaces. Experiments on animal aortic tissue confirm the promising results of this technology and its potential for medical applications. Fully assembled catheters The researchers tested the prototype during friction experiments on different tissue types. They are also investigating how the technology can be applied to other procedures, such as bowel interventions. More information 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 Michaël Wiertlewski: m.wiertlewski@tudelft.nl Would you like to know more and/or attend a demonstration of the prototype please contact me: Fien Bosman, press officer Health TU Delft: f.j.bosman@tudelft.nl/ 0624953733

A key solution to grid congestion

On behalf of the TU Delft PowerWeb Institute, researchers Kenneth Brunninx and Simon Tindemans are handing over a Position Paper to the Dutch Parliament on 14 November 2024, with a possible solution to the major grid capacity problems that are increasingly cropping up in the Netherlands. The Netherlands is unlikely to meet the 2030 climate targets, and one of the reasons for this is that large industry cannot switch to electricity fast enough, partly because of increasingly frequent problems around grid capacity and grid congestion. In all likelihood, those problems will actually increase this decade before they can decrease, the researchers argue. The solution offered by the TU Delft PowerWeb Institute researchers is the ‘flexible backstop’. With a flexible backstop, the current capacity of the power grid can be used more efficiently without sacrificing safety or reliability. A flexible backstop is a safety mechanism that automatically and quickly reduces the amount of electricity that an electric unit can draw from the grid (an electric charging station or a heat pump) or deliver (a PV installation). It is a small device connected or built into an electrical unit, such as a charging station or heat pump, that ‘communicates’ with the distribution network operator. In case of extreme stress on the network, the network operator sends a signal to the device to limit the amount of power. Germany recently introduced a similar system with electric charging stations. The backstop would be activated only in periods of acute congestion problems and could help prevent the last resort measure, which is cutting off electricity to users. ‘Upgrading the electricity network remains essential, but in practice it will take years. So there is a need for short-term solutions that can be integrated into long-term planning. We, the members of the TU Delft PowerWeb Institute, call on the government, network operators and regulator to explore the flexible backstop as an additional grid security measure,’ they said. The entire Paper can be read here . Kenneth Brunninx Associate Professor at the Faculty of Engineering, Governance and Management, where he uses quantitative models to evaluate energy policy and market design with the aim of reducing CO2 emissions. Simon Tindemans is Associate Professor in the Intelligent Electrical Power Grids group at Faculty of Electrical Engineering, Mathematics and Computer Science. His research interests include uncertainty and risk management for power grids. TU Delft PowerWeb Institute is a community of researchers who are investigating how to make renewable energy systems reliable, future proof and accessible to everyone.

25 year celebration of formal collaboration between Delft University of Technology and the University of Campinas

On 25 October 2024 we celebrated 25 years of formal collaboration between Delft University of Technology and the University of Campinas. What began as a project to exchange some students in chemical engineering has now grown to a multifaceted and broad academic collaboration which accumulated into 24 joint research projects (>20 M Euro); 16 advanced courses and 15 Doctors with a Dual Degree PhD. Patricia Osseweijer, TU Delft Ambassador Brazil explained, “We are proud to show and reflect on this special day the added value we created resulting from our joint activities. The lessons we learned demonstrate that especially continuity of funds and availability for exchanges has contributed to joint motivation and building trust which created strong relations. This is the foundation for academic creativity and high-level achievements.” The program presented showcases of Dual Degree projects; research activities and education. It discussed the future objectives and new fields of attention and agree on the next steps to maintain and strengthen the foundation of strong relations. Telma Franco, Professor UNICAMP shared that “joint education and research has substantially benefitted the students, we see that back in the jobs they landed in,” while UNICAMP’s Professor Gustavo Paim Valenca confirmed that “we are keen to extend our collaboration to more engineering disciplines to contribute jointly to global challenges” Luuk van der Wielen highlighted that “UNICAMP and TU Delft provide valuable complementary expertise as well as infrastructures to accelerate research and innovation. Especially our joint efforts in public private partnerships brings great assets” To ensure our future activities both University Boards have launched a unique joint program for international academic leadership. This unique 7-month program will accommodate 12 young professors, 6 from each university. The programme began on 4 November 2024 in Delft, The Netherlands.

Christmas lunch

Take part in a festive lunch with MoTiv, TU Delft Studentenraad en TU Delft ESA This holiday season, MoTiv, TU Delft, and the local Delft churches are bringing together homes and students for a special, heartwarming experience, and we would love for you to be part of it! After three successful years, we’re excited to continue this festive tradition, bridging cultures and creating connections. Are you interested in joining a holiday lunch as a guest , along with other international students, in a welcoming Delft-area home? Or perhaps you’d like to open your home as a host , sharing a warm, cultural celebration with students from around the world? This special event will take place from December 23rd to December 31st, between 12:00 and 15:00 . For Guests : If you’d like to participate as a guest, we’ll match you with a local host eager to share their holiday traditions. You’ll enjoy delicious dishes, laughter, and meaningful conversations, creating memories that feel like home, even far from family. Once matched, we’ll connect you with your host so you can coordinate details and meal plans together. Sign up as a guest in this google forms.(https://forms.gle/yLAqE83DcqWGwcKB8) For Hosts : If you’re interested in hosting, this is a wonderful opportunity to welcome students into your home for a memorable meal. By sharing food, stories, and perhaps even a few games, you’ll help make the season brighter for students eager to experience Dutch hospitality and holiday traditions. Sign up as a host in this google forms.( https://forms.gle/bJB5svxJZ1iTSF1c6 ) For any questions, feel free to reach out to us at motiv.connects@gmail.com. For more information, please visit our website at www.motiv.tudelft.nl/christmas-lunch-delft/ . Thank you for making this holiday season unforgettable. We look forward to celebrating with you! Warm regards, MoTiv, TU Delft Student Council, TU Delft ESA - Student Community Team