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Aly, H.A. (author), Nealon, Rebecca (author), Gonzalez, Jean-François (author)We identify a new dust instability that occurs in warped discs. The instability is caused by the oscillatory gas motions induced by the warp in the bending wave regime. We first demonstrate the instability using a local 1D (vertical) toy model based on the warped shearing box coordinates and investigate the effects of the warp magnitude and...journal article 2024
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Hoonhout, Douwe (author)Video temporal action localization is the task of identifying and localizing specific actions or activities within a video stream. Instead of only classifying which actions occur in the video stream, we aim to detect when an action begins and ends. In this work, we focus on solving this task without any supervision. Existing unsupervised methods...master thesis 2023
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Ingla Aynés, J. (author), Rigotti Manesco, A.L. (author), Ghiasi, T.S. (author), Volosheniuk, S. (author), Watanabe, Kenji (author), Taniguchi, Takashi (author), van der Zant, H.S.J. (author)We report multiterminal measurements in a ballistic bilayer graphene (BLG) channel, where multiple spin- and valley-degenerate quantum point contacts (QPCs) are defined by electrostatic gating. By patterning QPCs of different shapes along different crystallographic directions, we study the effect of size quantization and trigonal warping on...journal article 2023
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Amoozandeh, A. (author), Herder, J.L. (author), Radaelli, G. (author)Continuously Variable Transmissions (CVT) can serve as subsystems for a variety of machineries and robotic systems. A compliant CVT mechanism based on the warping of twisting beams is presented here. The design works based on the demonstrated fact that the twist on one side of a beam can be transferred via sectional warping and propagate...journal article 2023
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Meuleman, Mathias (author)The field of Optical Music Recognition has been making progress in the past decades to automate the process of transcribing music scores into computer-readable formats, but its results are still far from being generally applicable. Some research effort has focused on incorporating crowdsourcing techniques into this field to check and correct...master thesis 2021
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le Coz, C.M.L. (author)There is an increasing number of rainfall products available over Africa and globally. Rainfall has considerable socio-economic impacts in sub-Saharan Africa, and the sparse gauge and radar networks make such estimates particularly valuable. They are used in many important applications such as drought/flood forecasting, water management or...doctoral thesis 2021
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Steffelbauer, D.B. (author), Blokker, E.J.M. (author), Buchberger, S. G. (author), Knobbe, Arno (author), Abraham, E. (author)Socioeconomic characteristics are influencing the temporal and spatial variability of water demand, which are the biggest source of uncertainties within water distribution system modeling. Improving current knowledge of these influences can be utilized to decrease demand uncertainties. This paper aims to link smart water meter data to...journal article 2021
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le Coz, C.M.L. (author), Heemink, A.W. (author), Verlaan, M. (author), van de Giesen, N.C. (author)Many satellite-based estimates use gauge information for bias correction. In general, bias-correction methods are focused on the intensity error and do not explicitly correct possible position or timing errors. However, position and timing errors in rainfall estimates can also lead to errors in the rainfall occurrence or the intensity. This is...journal article 2021
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Valentijn, Maurice (author)The objective of this thesis is to show that warping can be used in a thin-walled beam to create a suitable replacement for a classical differential mechanism. This normally negated deformation of the cross section can be used to create an inverse transmission mechanism, used to create a monolithic and simple alternative to a classic...master thesis 2020
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Garcia Manso, A. (author)In the oil and gas industry a crucial step for detecting and developing natural resources is to drill wells and measure miscellaneous properties along the well depth. These measurements are used to understand the rock and hydrocarbon properties and support oil/gas field development. The measurements are done at multiple times and using different...master thesis 2020
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Bosboom, J. (author)This thesis investigates the behaviour of the often used point-wise skill score, the MSESSini a.k.a. BSS, and develops new error metrics that, as opposed to point-wise metrics, take the spatial structure of morphological patterns into account. The...doctoral thesis 2020
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Lu, S. (author), ten Veldhuis, Marie-claire (author), van de Giesen, N.C. (author), Heemink, A.W. (author), Verlaan, M. (author)Satellite and reanalysis precipitation products perform poorly over regions with low-density ground observation networks. In order to improve space-dependent parameterization of precipitation estimation models in data-scarce environments, the delineation boundaries of precipitation regimes should be accurately identified. Existing approaches...journal article 2020
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Verburg, Joseph (author)Tactile Internet (TI) is, the next frontier of connectivity development wherenot only information but interaction can be exchanged digitally. Much effort in the field of TI has been spent towards developing the necessary technologies needed to transmit interactions over the internet in a naturally perceivedway. However not much has been done on...master thesis 2019
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Xiong, Xiaoxia (author), Wang, M. (author), Cai, Yingfeng (author), Cheng, Long (author), Farah, H. (author), Hagenzieker, Marjan (author)Measuring risk is critical for collision avoidance. The paper aims to develop an online risk level classification algorithm for forward collision avoidance systems. Assuming risk levels are reflected by braking profiles, deceleration curves from critical evasive braking events from the Virginia “100-car” database were first extracted. The...journal article 2019
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Gil, Beatriz (author), Goñi, Rufino (author), Bijlaard, F.S.K. (author), Bayo, Eduardo (author)Torsional effects in joints need to be investigated in order to get a complete model of the joint and also to assess the real boundary conditions for the lateral torsional effects in the beams of structural frames. Phenomena such as: torsion, warping, lateral buckling, etc. are usually analysed assuming simplified boundary conditions, namely...journal article 2019
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van der Vlist, Rik (author)A phase estimation algorithm is presented to estimate the phase of a recurring pattern in a nonstationary signal. The signal is modelled by a template signal that represents one revolution of the recurring pattern, and that the frequency of this pattern can change at any time with no assumptions about local stationarity. The algorithm uses a...master thesis 2018
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Lago, Jesus (author), Erhard, Michael (author), Diehl, Moritz (author)Fast online generation of feasible and optimal reference trajectories is crucial in tracking model predictive control, especially for stability and optimality in presence of a time varying parameter. In this paper, in order to circumvent the operational efforts of handling a discrete set of precomputed trajectories and switching between them,...journal article 2018
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Xian, Chuhua (author), Jin, Shuo (author), Wang, C.C. (author)Handle-driven image warping based on linear blending is widely used in many applications because of its merits on intuitiveness, efficiency, and ease of implementation. In this paper, we develop a method to compute high-quality weights within a closed domain for image warping. The property of C<sub>2</sub> continuity in weights is guaranteed...journal article 2018
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Peperkamp, J.B. (author)When performing a piece of music, there are certain ways in which performers turn the score into their own musical interpretation of it. The difference between what is written and what is played can be substantial, and can vary between performers and even individual performances. In this thesis we examine what information can be gained from...master thesis 2016