Filter results

48106 results

DDMC 2008

Program for Delft Days on Magnetocaloric (DDMC) October 30 (Thursday) 2008 9:30-9:45 Welcome address by Dr G. Degen, BASF Future Business, Ludwigshafen Workshop Session I 9:45-10:15 Magnetocaloric materials not only for cooling applications, E. Brück , TU Delft 10:15-10:45 Entropy contributions in conventional magnetocalorics and tricritical metamagnets, K. Sandeman , University of Cambridge 11:00-11:30 Improvement of magnetocaloric properties toward high efficiency cooling in La(FexSi1-x)13 by hydrogenation and partial substitution, A. Fujita , Tohoku University 11:30-12:00 Determination of magnetocaloric parameters through magnetic and thermodynamic methods in first-order transitions, R. Burriel , University of Zaragoza Workshop Session II 14:00-14:30 Model of layered AMR, K. Zimm , Astronautics 14:30-15:00 Magnetic refrigerants obtained by novel processing routes, J. Lyubina and O. Gutfleisch, IFW-Dresden 15:15-15:45 Magnetocaloric and Shape-Memory Properties in Ferromagnetic Heusler Alloys, A. Planes , University of Barcelona 15.45-16.15 Magnetocaloric properties of reactively sintered La(Fe,Co,Si)13, M.Katter , Vacuumschmelze 16.15-16.45 Determining the magnetocaloric effect in hysteretic materials, L. Caron , TU Delft 16.45-17.00 Evaluation of Alternative Refrigeration Cycles for Domestic Refrigeration - Performance Metrics and Expectations, E. Oguz, Arcelik A.S. 17.00-17.15 Magnetostriction - a way to detect lattice contributions to the magnetocaloric effect in CoMnSi based materials, A. Barcza October 31 (Friday) Workshop Session III 9:00-9:30 Pressure Dependence of Magnetocaloric Effect of MnAs1-x Sbx and La(Fe1-x Six )13 , H. Wada , Kyushu University 9:30-10:00 Pressure effects on the thermal hysteresis in MnFe(P,Ge) compounds O. Tegus , Inner Mongolia Normal University 10:20-10:50 An Isothermal Calorimeter for direct measurement of magnetocaloric properties, L. Giudici , INRIM Torino 10:50-11:20 Advanced modeling of Active Magnetic Regeneration, K.K. Nielsen , Risø 11:20-11:50 Global warming and refrigeration: how we can make all a difference? A. Pastore , Camfridge Other editions DDMC 2015 DDMC 2013 DDMC 2011 DDMC 2008

Dr.ir. A.J. (Adam) Pel

Open menu Staff Dr. Adam Pel is assistant professor on transport modelling, and traffic analyst at Fileradar. His main fields of expertise are data analytics, mathematical modelling, and simulation and optimisation techniques for (road) transport systems. His research topics include travel behaviour, the performance of transport networks, and particularly the resilience of transport systems. Pel obtained his PhD on evacuation modelling and management in 2011, and subsequently joined Delft University of Technology as assistant professor. He has chaired several international conferences, and is associate editor for the journals Transportation Research Part C and Transportation Science . Since 2014 he also does R&D part-time at Fileradar on data-driven traffic analytics and predictions. He is the Chair of the Board of Studies for the MSc programme on Transport, Infrastructure and Logistics; Coordinator for the BSc Minor programme on this subject; and member of the assessment committee within the CEG Lecturer Professionalisation programme. He is also course coordinator and lecturer for several MSc and BSc courses on the analyses and modelling of transport systems; and frequent supervisor for student projects and internships. He supervises Postdoc researchers and PhD students doing research on these subjects. Adam Pel Assistant professor +31 (15) 27 84874 a.j.pel@tudelft.nl Faculty of Civil Engineering and Geosciences Building 23 Stevinweg 1 2628 CN Delft Room: 4.35 linkedin Additional information

Half Height Horizontal

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.