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Towards a sensible digital society

Mathematics, electrical engineering and computer science are the foundation of modern technology: they form the basis for solutions to this century's major challenges. This creates not only opportunities but also responsibilities. "As engineers, we must be aware of the fact that the digital society does not exclusively bring benefits", warns Professor John Schmitz, Dean of the Faculty of Electrical Engineering, Mathematics and Computer Science (EEMCS). Mathematics, (micro)electronics and computer science: all technical systems and hardware – from medical equipment to aircraft – require a combination of these three elements. "Take your smartphone", Professor Schmitz explains. "It contains electronic switches – integrated circuits. Designing them requires mathematics. Consider Kirchhoff's laws, which state that the sum of the voltages at a node in such a circuit equals zero; the same applies to the resistance in a loop. Solving such equations for simple circuits is manageable, but one modern integrated circuit (or microchip) contains millions of these loops. To do that, you really need to know your mathematics". Smartphones now have 100,000 times the computing power of the computers that were used for the moon landing. This was made possible by the development of micro-electronics, which in turn influenced the development of mathematics and computer science. "In the past, mathematics required a great deal of analytical solving. Current computing power and numerical methods mean we can simply calculate it all. This offers unprecedented possibilities," notes Schmitz. "In addition, all sorts of things that used to require experimental demonstration can now be partly calculated; so we don't have to conduct as many expensive experiments". Mathematics, computer science and electronics reinforce each other in this way, and are the joint foundation of modern technology – a role that Schmitz wants to put in the spotlight. Healthcare One topic that does not immediately bring EEMCS to mind is healthcare. The use of stem cells to grow tissue on electronic chips (‘Organ on Chip’) now makes it possible to conduct highly specific studies of how medicines work, in order to develop personalised individual medication. In the Bio-Informatics and Pattern Recognition research group, researchers are applying advanced data analysis in order to be able to interpret and use the ever-expanding volume of biological data (e.g. from DNA sequencing). Great things are happening in the field of medical imaging as well. "Take MRI scanners, which cost millions because of the linear magnets they require. Although these magnets have been fully optimised over time, the best possible technology is not being used to process the signals into images", explains Schmitz. "A combination of simple magnets and sophisticated image processing can produce very good image quality. This makes the devices affordable for developing countries as well". Great things are happening in the field of medical imaging as well. "Take MRI scanners, which cost millions because of the linear magnets they require. Although these magnets have been fully optimised over time, the best possible technology is not being used to process the signals into images", explains Schmitz. "A combination of simple magnets and sophisticated image processing can produce very good image quality. This makes the devices affordable for developing countries as well". However, even more information can be extracted from the more expensive scanners. "That kind of system generates a mountain of data, only a small portion of which is used in constructing two-dimensional images. By using symbols – glyphs – to represent this sea of data, computer-graphics techniques can be used to generate visual insight into all kinds of processes taking place in the tissue. The current systems can't do that. Of course, serious mathematics lies behind all this", says Schmitz. "It’s about how we visualise information in a way that humans can understand. Computer graphics could also be helpful in the cockpit, where pilots see so much data flash by that they can hardly make anything of it". Energy transition The energy transition has been called the greatest challenge of this century. According to Schmitz, this is no empty claim: "Worldwide, the majority of our energy still comes from fossil fuels. That has soon to change to 100% green energy, and electric energy will play an important role in the process". The generation of sustainable energy, the storage and conversion of energy, smart energy networks: the researchers at EEMCS are working on all the areas that will make this possible. The transition from centralised to decentralised generation and distribution will play a major role here: "Energy is increasingly becoming a two-way street. For example, locally generated energy can be delivered to the net or perhaps stored temporarily in car batteries. The network will also have to be able to cope with fluctuating supplies of solar and wind energy. We will soon be able to test exactly how that works in our new system-integration lab". Schmitz is referring to the Electrical Sustainable Power Lab (ESP Lab), a unique facility for research on the integration of all these new technologies into a single sustainable energy system. Blockchain While traditional customers are increasingly becoming ‘prosumers’ of energy, so the number of transactions is also increasing. Soon there will be questions to be answered, such as how do you charge for energy you have supplied to a neighbour. Blockchain technology – a new form of safe, distributed data storage – could be useful in this context. "Blockchain aims to generate digital confidence. That is quite an achievement in an age when our confidence in institutions is so often being undermined", argues Schmitz. How does it work? "Blockchain encrypts documents or data, and then it generates a unique code: a hash. This is done in such a way that the hash changes if something in the document changes. This means that any fraud is immediately revealed". Confidence in blockchain also has to do with the fact that the storage of each document is spread across the internet, thereby making fraud or theft virtually impossible. "Blockchain can be used for a large number of applications that currently require intermediaries, for example registering wills or taking out mortgages. It can also provide access to the financial world in areas where there are no banks", Schmitz points out. "It will soon be possible to use blockchain to arrange anything that now requires proof of identity". EEMCS is at the forefront of the development of blockchain technology. TU Delft is a founding member of the Dutch Blockchain Coalition, which is based on the campus. "All partners from society and industry are represented there: banks, government bodies, industry, notaries, insurance companies, knowledge institutions. It’s easier to interact with the field when it's so near". Education This community underpins the faculty’s aims in regard to its teaching duties. "We want to solve societal problems. This requires research, as well as engineers who are able to put that into practice. We train them, because engineers are needed in order to solve the world’s problems’, declares Schmitz. In his assessment, the teaching at TU Delft is in good shape. In a recent benchmark study by the Massachusetts Institute of Technology (MIT), TU Delft is ranked high amongst the world’s best universities of technology. "I would venture to say that the educational innovation at EEMCS is one reason that we are one of the top five in the world. The MIT report makes explicit mention of our Solar Energy MOOC and the 'blended-learning' approach in the teaching of maths." The latter project is PRIME: Project Innovation Mathematics Education. "We teach mathematics across the entire university, so we have to be able to explain it well to non-mathematics students". A combination of videos, interactive quizzes and online homework is intended to provide students with comprehensible preparation for the lectures and to improve their mathematical foundations. "We will also soon be starting a 'digital-skills' project, in which all students will learn the basic elements of programming", notes Schmitz. In addition to imparting mathematics and digital skills, the project will also make sure students – and scientists – consider the potential risks of the digital society. Risks "Digitisation has a major influence on society. When you go to a restaurant, everyone is sitting there looking at their screens. Although we could debate about whether that is good or bad, it does have a major impact on daily life", argues Schmitz. "On the other hand, some people today still do not have any connection to the internet. Do they no longer count? The government already makes it nearly impossible to do a tax return on paper". Social exclusion is only one of the risks. Schmitz explains, "We can have computers train themselves to recognise images. For example, the neural network recognises whiskers and decides that it’s seeing a cat. In time, it trains itself by adjusting a variety of weighting factors in the neural network. Although there have been no problems so far, these systems are sometimes so complicated that we no longer understand what they are doing". This could lead to potentially major dangers if, for example, we use the same systems to drive our cars, manage the stock market or arrive at medical diagnoses. We need to find ways to make deep learning and similar technologies more comprehensible. Otherwise, we could be heading for ‘Weapons of Math Destruction’, as the mathematician Cathy O’Neil describes in her book of the same name. In general, this is nothing new. "There are two sides to whatever we invent, good or bad", argues Schmitz. "As an engineer, it's important to make this visible, and therefore transparent". Digital society Until recently, this was uncharted territory. "These problems are on their way because the digital society is unstoppable. In fact, they are already here, although they are a relatively new issue. We need to be aware that these kinds of factors will be playing a role. This starts with the training of good engineers, and this means in education", observes Schmitz. Fortunately, we are not alone in this endeavour. For example, the ‘Digital Society’ programme of the Association of Universities in the Netherlands (VSNU) addresses both the opportunities and the risks. "The universities are united in saying, 'We are facing a common task'. Where is the human factor in the digital society? To what extent can we trust digital contacts and transactions? Even if we do not yet have the answers, I have high expectations that we will be able to find them if we all work together. This is how we can progress together towards a responsible digital society". More information You can view the inaugural speech of Prof. John Schmitz on demand via ths link . You can find the slides of the inaugural speech here . Text: Agaath Diemel l June 2018

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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

An interview with Aukje Hassoldt: “You can't solve what you don't discuss”.

DEWIS interviews staff members in different positions about gender diversity and inclusion. For this edition, we talked to Professor Aukje Hassoldt, dean at the Faculty of Technology, Policy and Management (TBM), about the influx and advancement of women into academic positions, parenthood and social safety. Aukje Hassoldt was appointed the dean of TBM on 1 October 2019 and will step down on 1 December 2024 to become dean of the Rotterdam School of Management (RSM) at Erasmus University Rotterdam. Talk about the unwritten rules. You can’t solve what you don’t discuss. We have to start the conversation in a respectful way and learn to understand each other’s points of view. Professor Aukje Hassoldt Left Aukje Hassoldt during the DE&I Week 2023 Even today, parents and teachers sometimes discourage girls and other minority groups from studying physics based on the well-meaning but misguided notion that they should be protected. You studied physics at Vrije Universiteit (VU) Amsterdam. Did this narrative not affect you? Aukje: “It definitely did. I believed the narrative that physics would be difficult. That’s why it wasn’t my first choice, even though I had my heart set on studying physics. While studying econometrics, I discovered that I could handle the maths. When I went on to study physics, I learned that it wasn’t a difficult programme for me.” What can we do now to change the narrative? Aukje: “Last year, Birgit van Driel wrote a riveting column about her studies in the Delta, in which she went over everything she found difficult - and it wasn’t the coursework! Degree programmes are either right for you or not, but secondary school teachers should be vigilant not to inadvertently single out particular subjects as ‘difficult’. That’s what we should try to change. Some people find maths difficult, while others struggle with other subjects. We have to get rid of the idea that some subjects are inherently ‘hard’, for example by paying attention to this in our outreach activities.” You later held various positions at Rijkswaterstaat (Ministry of Infrastructure and Water Management) and the Netherlands Organisation for Applied Scientific Research (TNO). Did you ever feel excluded? And how did you deal with that? Aukje: “I always felt perfectly at home at Rijkswaterstaat and TNO. I was often the youngest, the only woman and the project leader or supervisor, but that’s exactly what interested me. I never felt uncomfortable. Anything but, organisations welcomed me with open arms. The same is true for RIVM and TU Delft.” You served as dean of the faculty of TBM from 1 October 2019 to 1 December 2024, during which time the percentage of female professors at the faculty has stagnated at about 30%. Is that enough? Aukje: “There has been growth, albeit not at as much as I’d hoped. At the TBM faculty, we’ve appointed five new female professors in recent years, but some have also retired, which means the overall percentage has stayed at around 30%. Our percentage of female associate professors (UHD), however, did go from 15% to 32% and our percentage of female assistant professors (UD) from 36% to 50%. The pipeline is fuller than it was before, but we’re not there yet. In the end, we want there to be 50/50 split in all positions.” What can the university/faculty do to help female researchers build a promising academic career? Aukje: “It’s important to take a critical look at issues such as advancement and differences in perception. Our approach consists of our so-called ‘fleet review’, in which a small committee discusses how our staff is developing and who is ready for a next step. We explicitly look at whether everyone is gaining enough leadership experience and honing their leadership skills. We ask each other critical questions, watch out for possible bias and do everything we can to keep the advancement process fair. At the same time, we will still need training courses to become and remain aware of our unconscious biases. We already have diversity training courses for all staff and a course for members of appointment advisory committees, all of which also have a trained bias observer. On top of that, managers are required to attend management skills training courses and we offer feedback training for everyone.” If you had the chance to implement one measure to improve the advancement of women to senior and decision-making positions at the university/faculty level, what would it be? Aukje: “I would love to organise another talk for young women researchers and senior scientists to share experiences about building your career and making conscious choices. I reckon that would be a good way to support them. In my previous jobs, I also found that a good course on conversation skills can be a big help, and I think TU Delft could do more in this regard.” In 2020, you said that your ideal university is one that is friendly, welcoming, challenging and inspiring. Does TU Delft live up to this ideal, or do we still have a way to go? Aukje: “We could be kinder to each other at times. I’d also add ‘safe’ to my criteria, by which I mean social safety: feeling comfortable to speak your mind, provided you do that in a respectful way. People deserve to feel heard and be taken seriously, and a respectful tone is non-negotiable. Of course, that doesn't mean you always get your way, but it's important that we can provide that safety.” What concrete measures has the faculty taken to promote social safety in the workplace? Aukje: “We organise staff lunches where we engage in small-group discussions that have proven to be very informative and valuable, as they help us stay in touch and listen to each other. Having a well-functioning Personnel Committee (faculty sub-committee of the Works Council) is also very important. I’ve found that staff members with a Dutch background are more likely to dare to bring up issues, but the Personnel Committee has now helped give a voice to international staff. Furthermore, contact with the PhD Council (PhD candidates) is very important, as they’re a vulnerable group. Some may feel uncomfortable speaking up about difficult situations, for instance, and may not even reach out to a confidential adviser. For these people, a peer group can be a valuable source of support. Social safety is about how we treat each other on a daily basis, which makes it a joint responsibility of us all. Managers have a special role because they can do a lot to foster an open atmosphere, but it’s still a duty we all share. We have to be respectful, while ensuring that everyone feels comfortable speaking their mind and is taken seriously. The faculty’s 10-point draft plan for social safety also proposes a code of conduct of sorts.” What can department chairs do to create an environment in which women and people from minority groups can grow and develop personally and professionally? Aukje: “The difference between good and not so good management is often in the details. What makes management so difficult is that it requires great precision and subtlety. When you feel a jokey atmosphere evolve, for instance, you have to be able to intervene in a respectful way. Another example is ensuring that everyone gets the opportunity to weigh in, including more introverted people. These are just examples, but there are many ways managers can contribute to a safe and open atmosphere.” Dr. Isabel Torres, co-founder and CEO of Mothers in Science, gave a talk to the DEWIS community in February, in which she highlighted the barriers and prejudices that mothers in STEM face in their careers. How can managers support parents and people with caring responsibilities? What do we need to do? Aukje: “The maternity wall is a real problem. Fatherhood and motherhood are equally important, and young parents need good support. I should add that informal care-givers (i.e. for older parents) also deserve support: these are phases of life that we all have to deal with.” Is the university responsible for changing the notion that you can’t have a family and a career? Aukje: “Absolutely. Universities should treat men and women as equals when it comes to caring responsibilities, nor should we implicitly expect new fathers to continue working as if nothing has changed, like we did in the old days.” What advice would you give women to help them navigate academia and its culture of unwritten rules? Aukje: “Talk about the unwritten rules. You can’t solve what you don’t discuss. We have to start the conversation in a respectful way and learn to understand each other’s points of view.”