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14 november 2024

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

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

Veiligere en efficiëntere bloedvatbehandelingen door innovatieve kathetertechnologie

Veiligere en efficiëntere bloedvatbehandelingen door innovatieve kathetertechnologie
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13 november 2024

Intreerede: Optimalisatie van werktuigen sleutel tot efficiënter logistiek systeem

Intreerede: Optimalisatie van werktuigen sleutel tot efficiënter logistiek systeem

De bewerking en het transport van materialen kan veel efficiënter. Dat stelt TU Delft hoogleraar Dingena Schott in haar intreerede ‘Advancing Transport and Processing: from Model to Impact’, die zij op 15 november houdt. Haar onderzoek richt zich op de interactie tussen werktuigen en hun lading, met een speciale focus op korrelige materialen.

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11 november 2024

Een flexibele backstop als deel van de oplossing voor netcongestie

Een flexibele backstop als deel van de oplossing voor netcongestie
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08 november 2024

Toespraak Tim van der Hagen bij World Future Forum

Toespraak Tim van der Hagen bij World Future Forum

Voorzitter van het College van Bestuur en Rector Magnificus Tim van der Hagen sprak deze week op het World Future Forum in Lissabon.

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- Widget

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

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…

/2024/tu-delft/students-amos-yusuf-mick-dam-bas-brouwer-winners-of-mekel-prize-2024

Veiligere en efficiëntere bloedvatbehandelingen door innovatieve kathetertechnologie

Veiligere en efficiëntere bloedvatbehandelingen door innovatieve kathetertechnologie

Wereldwijd worden jaarlijks meer dan 200 miljoen katheters gebruikt voor de behandeling van vaatziekten zoals hartaandoeningen en…

/2024/tu-delft/veiligere-en-efficientere-bloedvatbehandelingen-door-innovatieve-kathetertechnologie

Intreerede: Optimalisatie van werktuigen sleutel tot efficiënter logistiek systeem

Intreerede: Optimalisatie van werktuigen sleutel tot efficiënter logistiek systeem

De bewerking en het transport van materialen kan veel efficiënter. Dat stelt TU Delft hoogleraar Dingena Schott in haar intreerede…

/2024/me/nieuws/intreerede-optimalisatie-van-werktuigen-sleutel-tot-efficienter-logistiek-systeem

Een flexibele backstop als deel van de oplossing voor netcongestie

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…

/2024/powerweb-institute/een-flexibele-backstop-als-deel-van-de-oplossing-voor-netcongestie

Toespraak Tim van der Hagen bij World Future Forum

Toespraak Tim van der Hagen bij World Future Forum

Voorzitter van het College van Bestuur en Rector Magnificus Tim van der Hagen sprak deze week op het World Future Forum in Lissabon.

/2024/tu-delft/toespraak-tim-van-der-hagen-bij-world-future-forum

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Event format - Overview

november
28
Lecture
PowerWeb Lunch Lecture: “Energy Hubs & Flex – by Gradyent”
25
01
Exhale Sluitingsweek | Technische Universiteit Delft
18
22
Global Entrepreneurship Week Delft
08
Intreerede prof.dr.ir. A.L. Nillesen (Bk)
29
Promotie X. Meng
27
Promotie P. Esnaf-Uslu
27
Promotie X. He
27
Promotie G. Zhu
26
Promotie S. Yuan
januari
16
183rd Dies Natalis TU Delft

- Widget

november

28
Lecture

PowerWeb Lunch Lecture: “Energy Hubs & Flex – by Gradyent”
25
01

Exhale Sluitingsweek | Technische Universiteit Delft
18
22

Global Entrepreneurship Week Delft
08

Intreerede prof.dr.ir. A.L. Nillesen (Bk)
29

Promotie X. Meng

januari

16

183rd Dies Natalis TU Delft

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Card format

[PDE&A] Rishabh Gvalani

[PDE&A] Rishabh Gvalani 13 februari 2025 16:00 t/m 17:00 - Locatie: Snijderszaal LB01.010 | Zet in mijn agenda Name Website

[PDE&A] Jason Frank

[PDE&A] Jason Frank 16 januari 2025 16:00 t/m 17:00 - Locatie: Snijderszaal LB01.010 | Zet in mijn agenda Name Website

[PDE&A] Jana Weber

[PDE&A] Jana Weber 30 januari 2025 16:00 t/m 17:00 - Locatie: EEMCS Hall G 36.HB.00.230 | Zet in mijn agenda Name Website

[PDE&A] Ivan Langella

[PDE&A] Ivan Langella 28 november 2024 16:00 t/m 17:00 - Locatie: Snijderszaal LB01.010 | Zet in mijn agenda Name Website

[PDE&A] Maximilian Engel: Detecting random bifurcations via rigorous enclosures of large deviations rate functions

We provide a description of transitions from uniform to nonuniform snychronization in diffusions based on large deviation estimates for finite time Lyapunov exponents. These can be characterized in terms of moment Lyapunov exponents which are principal eigenvalues of the generator of the tilted (Feynman-Kac) semigroup.

Using a computer assisted proof, we demonstrate how to determine these eigenvalues and investigate the rate function which is the Legendre-Fenichel transform of the moment Lyapunov function. We apply our results to two case studies: the pitchfork bifurcation and a two-dimensional toy model, also considering the transition to a positive asymptotic Lyapunov exponent.

This is joint work with Alexandra Blessing, Alex Blumenthal and Maxime Breden.

[PDE & Applications seminar] Sebastian Wieczorek: Rate-induced tipping in non-autonomous reaction-diffusion systems: An invariant manifold framework and shifting habitats

The mathematical modelling of tipping points - large and sudden changes in the state of a system that arise in response to small and slow changes in the external inputs - has mainly focused on ordinary differential equation (ODE) models. In this talk, I will begin with a brief overview of tipping points in ODEs. I will then consider reaction-diffusion equations (RDEs) with time-dependent (nonautonomous) and space-dependent (heterogenous) reaction terms that decay in space (asymptotically homogeneous). Such models are likely to exhibit new and interesting tipping mechanisms, but their analysis is more challenging and requires new techniques. As an illustrative example, we analyse a conceptual model of a habitat patch in one spatial dimension, that features an Allee effect in population growth and is geographically shrinking or shifting due to human activity and climate change. We identify two classes of tipping points to extinction: bifurcation-induced tipping (B-tipping) when the shrinking habitat falls below some critical length, and rate-induced tipping (R-tipping) when the shifting habitat exceeds some critical speed. To facilitate the analysis of tipping points in RDEs, such as the moving habitat model, we propose a new mathematical framework. This framework is underpinned by a special compactification of the moving-frame coordinate in conjunction with Lin’s method for constructing heteroclinic orbits along intersections of stable and unstable invariant manifolds of saddles. This allows us to (i) obtain multiple coexisting pulse and front solutions for the RDE by computing heteroclinic orbits connecting saddles from negative and positive infinity, (ii) detect tipping points as bifurcations of such heteroclinic orbits, and (iii) obtain two-parameter tipping diagrams by numerical continuation of such bifurcations.

[PDE & Applications seminar] Katerina Nik: Surface morphoelasticity

Growth is a fundamental process in biological systems and various technological applications, including epitaxial deposition and additive manufacturing. The interaction between growth and mechanics in deformable bodies leads to a wealth of very challenging mathematical questions. I will give a short overview of the key concepts of morphoelasticity, namely, the theory of elastic deformations in growing bodies. Unlike the classical case, the reference state of a growing body evolves over time, also in response to external stimuli and stress. I will discuss the case of surface accretion, which presents specific challenges. The emphasis will be on developing a variational framework where the existence of quasistatic morphoelastic evolution can be proved. This talk is based on a collaboration with Elisa Davoli (TU Wien), Ulisse Stefanelli (University of Vienna), and Giuseppe Tomassetti (Roma Tre University).

[PDE&A] Anna Felden: : From the micro- to the km- scale: applications for every need with the AMR framework Chombo

This talk will be centered around applications developed with the LBNL’s Adaptive Mesh Refinement (AMR) framework Chombo. Chombo includes features that improve both scalability and accuracy that are not typically found in commercial software packages, e.g., parallel nonlinear implicit solvers and higher-order time integrators and discretizations. The AMR capability is particularly well suited to problems exhibiting a large range of spatial scales, such as the ones that will be discussed in this talk.

In a first part, I will discuss SUHMO, a 2D SUbglacial Hydrology MOdel.
Modeling subglacial hydrology is very challenging because of the large variety of subglacial elements which dynamically evolve over time -from channels to vast subglacial lakes. We handle the strong non-linearities present in the equations by resorting to an efficient non-linear Full Approximation Scheme (FAS-MG) algorithm. We accommodate the transition from unresolved to resolved elements with a novel diffusion-like term which enables to recover second-order convergence of all the variables of interest. After giving a brief overview of the context, I will outline the details of the algorithm and present convergence analysis results demonstrating its effectiveness.

I will then discuss HotChips, which is a Chombo-based solver for heat management in 3D stacked integrated circuit. 3D stacks consist of multiple layers of material with potentially large variations in thermal conductivity. Since Chombo is best suited for the Finite Volume (FV) method, flux reconstruction techniques that can handle material jumps and 2D heat sources are implemented. The efficiency of the solver is further increased by using anisotropic meshing, since material variations in the z-direction are predominant. The entire algorithm relies on the same efficient nonlinear FAS-MG scheme that could be easily extended to deal with temperature-dependent conductivities.
Examples of 3D simulation results of realistic chip layouts using HotChips are presented along with some comparisons with COMSOL Multiphysics.

[PDE&A] Joris van Winden: Stability and noise-induced motion of symmetric patterns in SPDE

Some PDEs admit symmetric ‘pattern’ solutions, such as travelling or rotating waves. We investigate what happens to such patterns when noise is present in the system. We show that the patterns persist for a long time with high probability, and describe the (noise-induced) motion of the pattern. The symmetries of the PDE and the pattern play a key role in describing the dynamics, and we give special attention to the situation where the symmetry group is not commutative.

Vanaf 4 september inschrijving geopend voor nieuwe cursussen in Q1

De nieuwe cursussen starten vanaf maandag 9 september. Op woensdag 4 september om 08.00 uur opent de inschrijving hiervoor!

Symposium: Moonshot & Off – Earth Environments

Op 19 september vindt het symposium 'Moonshot & Off – Earth Environments' plaats.

Changing Publication Culture

Changing Publication Culture 08 oktober 2024 14:30 t/m 17:00 - Locatie: TU Delft, X | Zet in mijn agenda Register Publication is essential to the sharing of scientific knowledge. But the effectiveness of publishing is decreasing - scientists suffer under the ‘publish or perish’ culture; peer review becomes slower and more difficult; tenure committees still rely on outdated journal impact factors; and the costs of publishing are becoming unsustainable even for the wealthiest universities. Join this half-day event to discuss how we can develop a sustainable publication culture and policy at TU Delft and beyond. In this symposium, organised by the TU Delft Library together with representatives from different faculties, scholars and policymakers will share their perspectives on why a change of publication culture is needed, both from systemic as well as an individual perspective. All participants are invited to bring forward in an interactive session the publishing challenges they are currently facing. This symposium also marks the 5 years anniversary of TU Delft’s own open access publishing house: TU Delft Open Publishing - change maker in open access publishing. Experts will reflect on the national and international growing momentum for alternative publishing routes. Programme: 14:00 - 14:30 Doors open 14:30 - 14:35 Opening & welcome words 14:35 - 15:00 Keynote address 15:00 - 16:30 Panel discussion and interactive session 16:30 - 17:00 Panel discussion & closing 17:00 - 18:00 Drinks Confirmed speakers include: Prof. Dr. Martijn Warnier, full Professor of Complex System Design and head of the Multi-Actor Systems Department - Faculty of Technology, Policy and Management Prof.Dr.ir. Rinze Benedictus, Faculty of Aerospace Engineering, Department of Aerospace Structures and Materials Dr. Roberto Rocco de Campo, Associate Professor of Spatial Planning and Strategy, Department of Urbanism, Faculty of Architecture and the Built Environment Dr. Tahena Kuzniecow Bacchin, Associate Professor (tenured) of Urban Design and Critical Theory and Head of Research of the Section of Urban Design, Faculty of Architecture and the Built Environment Dr. Jason Moore, Assistant Professor, Faculty of Mechanical Engineering Dr. Claire Chassagne, Associate Professor in Environmental Fluid Mechanics, Faculty of Civil Engineering and Geosciences Just de Leeuwe, Publishing Advisor, TU Delft Library Margreet Nieborg, Director, University of Groningen Press Jeroen Sondervan, Programme Leader Open Scholarly Communication, Open Science NL Participation in this symposium is free of charge, but registration is mandatory.

Parallel computing on DelftBlue 13 December

This is an introductory course to programming for the DelftBlue supercomputer. It introduces the main concepts of efficient and parallel computing with examples using Python.

Moonshot & Off – Earth Environments Symposium

Moonshot & Off – Earth Environments Symposium 19 september 2024 14:00 t/m 18:30 - Locatie: TU Delft Faculty of Mechanical Engineering, lecture hall E | Zet in mijn agenda On behalf of the Director of the Space Institute, Paco Lopez Dekker, you are invited to attend on the 19th of September, 14:00h the Symposium Moonshot & Off-Earth Environments @ the faculty of Mechanical Engineering, lecture hall E Please RSVP by sending an e-mail to SpaceInstitute@tudelft.nl . We are looking forward to meeting you there.

Symposium: Building Health: Architectures of the Medical Complex

Op 13 september vindt het symposium 'Building Health: Architectures of the Medical Complex' plaats.

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