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Publications Journals Giraud, B., Rajaei, A, Cremer, J.L. (2024). Constraint-Driven Deep Learning for N-k Security Constrained Optimal Power Flow. Electric Power System Research and 2024 IEEE Power System Computation Conference. [ https://doi.org/10.1016/j.epsr.2024.110692 ] Covic, N., Cremer, J.L., Pandžić, H. (2024). Learning a Reward Function for Optimal Appliance Scheduling. Electric Power System Research and 2024 IEEE Power System Computation Conference [ https://arxiv.org/pdf/2310.07389.pdf ] Renshaw-Whitman, C., Zobernig, V., Cremer, J.L., Vries, L. (2024). The Non-Stationary for Multiagent Reinforcement Learning in Electricity Markets. Electric Power System Research and 2024 IEEE Power System Computation Conference. [ https://doi.org/10.1016/j.epsr.2024.110712 ] Bugaje, A.-A., Cremer, J.L., Strbac, G. (2023). Generating Quality Datasets for Real-Time Security Assessment: Balancing Historically Relevant and Rare Feasible Operating Conditions. International Journal of Electrical Power & Energy Systems. [ https://doi.org/10.1016/j.ijepes.2023.109427 ] Habib, B., Isufi, E., van Breda, W., Jongepier, A. and Cremer, J.L. (2023). Deep Statistical Solver for Distribution System State Estimation. IEEE Transactions on Power Systems. [ https://doi.org/10.1109/TPWRS.2023.3290358 ] Wahdany, D., Schmitt, C., Cremer, J.L., (2023). More than Accuracy: End-To-End Wind Power Forecasting that Optimises the Energy System. Electric Power System Research. [ https://doi.org/10.1016/j.epsr.2023.109384 ] Bugaje, A.-A., Cremer, J.L. and Strbac, G. (2022). Real-time Transmission Switching with Neural Networks. IET Generation, Transmission & Distribution. [ https://ietresearch.onlinelibrary.wiley.com/doi/10.1049/gtd2.12698 ] Bellizio, F., Cremer, J.L. and Strbac, G. (2022). Transient Stable Corrective Control in Smart Grids Using Neural Lyapunov Learning. IEEE Transactions of Power Systems. [ https://ieeexplore.ieee.org/document/9878088 ] Saeed Sarafraz, M., Proskurnikov, A., Tavazoei, M.S. and P. Mohajerin Esfahani (2022). Robust Output Regulation: Optimization-Based Synthesis and Event-Triggered Implementation. IEEE Transactions on Automatic Control. [ https://ieeexplore.ieee.org/abstract/document/9484809 ] Bellizio, F., Bugaje, A.-A., Cremer, J.L. and Strbac, G. (2022). Verifying Machine Learning Conclusions for Securing Low Inertia Systems. Sustainable Energy, Grids and Networks. [Verifying Machine Learning conclusions for securing Low Inertia systems - ScienceDirect] Segundo Sevilla, F.R., Liu, Y., Barocio, E., Korba, P., Andrade, M., Bellizio, F., Bos, J., Chaudhuri, B., Chavez, H., Cremer, J.L., Eriksson, R., Hamon, C., Herrera, M., Huijsman, M., Ingram, M., Klaar, D., Krishnan, V., Mola, J., Netto, M., Paolone, M., Papadopoulos, D., Ramirez, M., Rueda, J., Sattinger, W., Terzija, V., Tindemans, S., Trigueros, A., Wang, Y. and Zhao, J. (2022). State-of-the-art of data collection, analytics, and future needs of transmission utilities worldwide to account for the continuous growth of sensing data. International Journal of Electrical Power & Energy Systems. [ https://www.sciencedirect.com/science/article/pii/S0142061521009947 ] Van der Ploeg, C., Alirezaei, M., Van De Wouw, N. and Mohajerin Esfahani, P. (2022). Multiple faults estimation in dynamical systems: Tractable design and performance bounds. IEEE Transactions on Automatic Control. [ https://arxiv.org/abs/2011.13730 ] Marot, A., Donnot, B., Chaouache, K., Kelly, A., Huang, Q., Hossain, R.-R., and Cremer, J.L. (2022). Learning to run a power network with trust. arXiv preprint arXiv. [ https://arxiv.org/abs/2110.12908 ] Bellizio, F., Zu, W., Qiu, D., Ye, Y., Papadaskapoulos, D., Cremer, J.L., Teng, F. and Strbac, G. (2022). Transition to secure data-driven grid control and decentralized electricity market. IEEE Proceedings, Special Issue "The Evolution of Smart Grids". [ https://ieeexplore.ieee.org/document/9756414/keywords#keywords ] Marot, A., Kelly, A., Naglic, M., Barbesant, V., Cremer, J.L., Stefanov, A. and Viebahn, J. (2022). Perspectives for Future Power System Control Centers for The Energy Transition. IEEE Journal of Modern Power Systems and Clean Energy. [ https://ieeexplore.ieee.org/document/9744623 ] Kolarijani, A. and Mohajerin Esfahani, P. (2022). Fast Approximate Dynamic Programming for Input-Affine Dynamics. IEEE Transactions on Automatic Control. [ https://arxiv.org/abs/2008.10362 ] Bugaje, A.-A., Cremer, J.L. and Strbac, G. (2022). Split-based Sequential Sampling for Realtime Security Assessment. International Journal of Electrical Power & Energy Systems. [ https://www.sciencedirect.com/science/article/pii/S0142061522007864 ] Pan, K., Palensky, P. and Mohajerin Esfahani, P. (2022). Dynamic Anomaly Detection with High-fidelity Simulators: A Convex Optimization Approach. IEEE Transactions on Smart Grid. [ https://ieeexplore.ieee.org/document/9619468 ] Bellizio, F., Cremer, J.L. and Strbac, G. (2022). Machine-learned security assessment for changing system topologies. International Journal of Electrical Power & Energy Systems. [ https://www.sciencedirect.com/science/article/pii/S0142061521006190 ] Van der Ploeg, C., Silvas, E., Van de Wouw, N. and P. Mohajerin Esfahani (2021). Real-time Fault Estimation for a Class of Discrete-Time Linear Parameter-Varying Systems. IEEE Control Systems Letters. [ https://ieeexplore.ieee.org/document/9659807 ] Bellizio, F., Cremer, J.L., Sun, M. and Strbac, G. (2021). A causality-based feature selection approach for data-driven dynamic security assessment. Electric Power Systems Research 201. [ https://www.sciencedirect.com/science/article/pii/S0378779621005186 ] Bugaje, A., Cremer, J.L., Sun, M. and Strbac, G. (2021). Selecting DT Models for Security Assessment using ROC- and Cost-Curves. Energy and AI. [Selecting decision trees for power system security assessment - ScienceDirect] Gravell, B., Mohajerin Esfahani, P., and Summers, T. (2021). Learning Robust Controllers for Linear Quadratic Systems with Multiplicative Noise via Policy Gradient. IEEE Transactions on Automatic Control. [ https://ieeexplore.ieee.org/document/9254115 ] Akhtar, S.A., Kolarijani A.S. and Mohajerin Esfahani, P. (2021). Learning for Control: An Inverse Optimization Approach. IEEE Control Systems Letters. [ https://ieeexplore.ieee.org/document/9483283 ] Nguyen, V., Kuhn, D., and Mohajerin Esfahani, P. (2021). Distributionally Robust Inverse Covariance Estimation: The Wasserstein Shrinkage Estimator. Operations Research (OR). [ https://pubsonline.informs.org/doi/abs/10.1287/opre.2020.2076 ] Kolarijani, A., Proskurnikov, A. and Mohajerin Esfahani, P. (2021). Macroscopic Noisy Bounded Confidence Models with Distributed Radical Opinions. IEEE Transactions on Automatic Control. [ https://ieeexplore.ieee.org/abstract/document/9093157 ] Zhang, T., Sun, M., Cremer, J.L., Zhang, N., Strbac, G. and Kang, C. (2021). A Confidence-Aware Machine-Learned Framework for DSA. IEEE Transactions on Power Systems. [ https://ieeexplore.ieee.org/document/9354032 ] Nguyen, V.A., Shafieezadeh-Abadeh, S., D. Kuhn, D. and Mohajerin Esfahani, P. (2021). Bridging Bayesian and Minimax Mean Square Error Estimation via Wasserstein Distributionally Robust Optimization. Mathematics of Operations Research. [ https://arxiv.org/pdf/1911.03539.pdf ] Parys, B.V., Mohajerin Esfahani, P., and Kuhn, D. (2020). From Data to Decisions: Distribution ally Robust Optimization is Optimal. Management Science. [ https://pubsonline.informs.org/doi/10.1287/mnsc.2020.3678 ] Conferences Money, R., Krishnan, J., Beferull-Lozano, B. and Isufi, E. (2024). Evolution Backcasting of Edge Flows from Partial Observations Using Simplicial Vector Autoregressive Models. IEEE International Conference on Acoustic Speech and Signal Processing, (ICASSP), South Korea. [ https://ieeexplore.ieee.org/document/10448180 ] Kolarijani, A., Max, G. and Mohajerin Esfahani, P. (2021). Fast Approximate Dynamic Programming for Infinite-Horizon Continuous-State Markov Decision Processes, Neural Information Processing Systems (NeurIPS). [ https://www.dcsc.tudelft.nl/~mohajerin/Publications/conference/2021/NIPS_FDP.pdf ] Vreugdenhil, R., Nguyen, V. A., Eftekhari, A., Mohajerin Esfahani, P. (2021) Principal Component Hierarchy for Sparse Quadratic Programs. International Conference on Machine Learning (ICML), Vienna, Austria. [ https://proceedings.mlr.press/v139/vreugdenhil21a/vreugdenhil21a.pdf ] Dong, J., Sharifi Kolarijani, A. and Mohajerin Esfahani, P. (2021) Multimode Diagnosis for Switched Affine Systems. American Control Conference (ACC), New Orleans, USA. [ https://doi.org/10.1016/j.automatica.2023.110898 ] This content is being blocked for you because it contains cookies. Would you like to view this content? By clicking here , you will automatically allow the use of cookies.

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TU Delft jointly wins XPRIZE Rainforest drone competition in Brazil

TU Delft jointly wins in the XPRIZE Rainforest competition in the Amazon, Brazil Imagine using rapid and autonomous robot technology for research into the green and humid lungs of our planet; our global rainforests. Drones that autonomously deploy eDNA samplers and canopy rafts uncover the rich biodiversity of these complex ecosystems while revealing the effects of human activity on nature and climate change. On November 15, 2024, after five years of intensive research and competition, the ETHBiodivX team, which included TU Delft Aerospace researchers Salua Hamaza and Georg Strunck, achieved an outstanding milestone: winning the XPRIZE Rainforest Bonus Prize for outstanding effort in co-developing inclusive technology for nature conservation. The goal: create automated technology and methods to gain near real-time insights about biodiversity – providing necessary data that can inform conservation action and policy, support sustainable bioeconomies, and empower Indigenous Peoples and local communities who are the primary protectors and knowledge holders of the planet’s tropical rainforests. The ETHBiodivX team, made of experts in Robotics, eDNA, and Data Insights, is tackling the massive challenge of automating and streamlining the way we monitor ecosystems. Leading the Robotics division, a collaboration between TU Delft’s Prof. Salua Hamaza, ETH Zurich’s Prof. Stefano Mintchev and Aarhus University’s Profs. Claus Melvad and Toke Thomas Høye, is developing cutting-edge robotic solutions to gather ecology and biology data autonomously. “We faced the immense challenge of deploying robots in the wild -- and not just any outdoor environment but one of the most demanding and uncharted: the wet rainforests. This required extraordinary efforts to ensure robustness and reliability, pushing the boundaries of what the hardware could achieve for autonomous data collection of images, sounds, and eDNA, in the Amazon” says prof. Hamaza. “Ultimately, this technology will be available to Indigenous communities as a tool to better understand the forest's ongoing changes in biodiversity, which provide essential resources as food and shelter to the locals.” . . . .

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