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Liu, Y. (author), Pamososuryo, A.K. (author), Ferrari, Riccardo M.G. (author), van Wingerden, J.W. (author)
The Immersion and Invariance (II) wind speed estimator is a powerful and widely-used technique to estimate the rotor effective wind speed on horizontal axis wind turbines. Anyway, its global convergence proof is rather cumbersome, which hinders the extension of the method and proof to time-delayed and/or uncertain systems. In this letter, we...
journal article 2022
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Haseltalab, A. (author), Wani, F.M. (author), Negenborn, R.R. (author)
Power availability to preserve propulsion is a vital issue in the shipping industry which relies on persistent power generation and maintaining the stability of the power and propulsion system. Since the introduction of on-board all-electric Direct Current Power and Propulsion Systems (DC-PPS) with hybrid power generation, which are more...
journal article 2022
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Bianchi, M. (author), Ananduta, W. (author), Grammatico, S. (author)
The distributed dual ascent is an established algorithm to solve strongly convex multi-agent optimization problems with separable cost functions, in the presence of coupling constraints. In this letter, we study its asynchronous counterpart. Specifically, we assume that each agent only relies on the outdated information received from some...
journal article 2022
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Estrella, Jorge (author), Wüthrich, D. (author), Chanson, Hubert (author)
A hydraulic jump is a region of rapidly-varied flow that is extremely turbulent. While the one-dimensional continuity and momentum principles have been successfully applied to express the relationships between upstream and downstream conditions, the three-dimensional equations cannot be resolved without some complicated turbulence closure,...
journal article 2022
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Akhtar, Syed Adnan (author), Sharifi K., Arman (author), Mohajerin Esfahani, P. (author)
We present a learning method to learn the mapping from an input space to an action space, which is particularly suitable when the action is an optimal decision with respect to a certain unknown cost function. We use an inverse optimization approach to retrieve the cost function by introducing a new loss function and a new hypothesis class of...
journal article 2022
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Liu, Di (author), Besselink, Bart (author), Baldi, S. (author), Yu, Wenwu (author), Trentelman, Harry L. (author)
Despite the progress in the field of longitudinal formations of automated vehicles, only recently an interpretation of longitudinal platooning has been given in the framework of disturbance decoupling, i.e. the problem of making a controlled output independent of a disturbance. The appealing feature of this interpretation is that the...
journal article 2022
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Bellizio, Federica (author), Cremer, Jochen (author), Strbac, Goran (author)
Machine learning has been used in the past to construct predictors, also known as classifiers, for dynamic security assessment. Although accurate classifiers can be trained for a single topology, often they do not work for another. However, the power system topology can change frequently during operation due to maintenance and control actions...
journal article 2022
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Shan, X. (author), van Gijzen, M.B. (author)
We study efficient implicit methods to denoise low-field MR images using a nonlinear diffusion operator as a regularizer. This problem can be formulated as solving a nonlinear reaction–diffusion equation. After discretization, a lagged-diffusion approach is used which requires a linear system solve in every nonlinear iteration. The choice of...
journal article 2022
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Guo, Feng (author), Cheng, Gang (author), Pang, Y. (author)
Aiming at a 5-DOF hybrid optical mirror polishing robot, the explicit dynamic model considering the joint friction is established and the inertia coupling distribution is studied. Firstly, the kinematics of the manipulator is solved based on closed-loop vector method, and the dynamic model is established with Newton-Euler method based on the...
journal article 2022
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Nazeer, A. (author), Maskey, Shreedhar (author), Skaugen, Thomas (author), McClain, M.E. (author)
In many high altitude river basins, the hydro-climatic regimes and the spatial and temporal distribution of precipitation are little known, complicating efforts to quantify current and future water availability. Scarce, or non-existent, gauged observations at high altitudes coupled with complex weather systems and orographic effects further...
journal article 2022
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van Linden, N. (author), Spanjers, H. (author), van Lier, J.B. (author)
Gaseous ammonia (NH3) recovered from residual waters may be used as a fuel in solid oxide fuel cells (SOFCs) to generate electricity without emission of undesirable oxidised nitrogen species. NH3 can be directly recovered from water as a gas by vacuum membrane stripping (VMS), which also results in the evaporation of water (H2O), leading to the...
journal article 2022
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Calderon Franco, D. (author), Orschler, Laura (author), Lackner, Susanne (author), Agrawal, Shelesh (author), Weissbrodt, D.G. (author)
The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemia has been one of the most difficult challenges humankind has recently faced. Wastewater-based epidemiology has emerged as a tool for surveillance and mitigation of potential viral outbreaks, circumventing biases introduced by clinical patient testing. Due to the situation...
journal article 2022
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Çelik, O. (author), Choudhary, A. (author), Peeters, D.M.J. (author), Teuwen, Julie J.E. (author), Dransfeld, C.A. (author)
In this study, the effect of rapid laser heating, which is typical during laser-assisted fiber placement (LAFP), on the micro- and meso- structure of the thermoplastic tape was investigated. Thermoplastic tapes were heated above the melting temperature with different heated lengths (30 and 80 mm and heating times (0.2 and 0.8 s) in a...
journal article 2021
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Arslan, A.M. (author), Agatz, Niels (author), Klapp, Mathias A. (author)
Inspired by recent innovations in the retail industry, we study an on-demand personal shopper service that lets customers shop online for products from brick and mortar stores. A fleet of personal shoppers fulfills customer orders, performing both shopping at the stores and delivery to the customers. The operation of such a service requires...
journal article 2021
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Schmitz, P.J.H. (author), Reniers, G.L.L.M.E. (author), Swuste, P.H.J.J. (author)
OCI Nitrogen, one of Europe's largest fertilizer producers, is investigating the extent to which it is possible to take targeted measures at an early stage and stop the development of major hazard accident processes. An innovative model has been developed and recently explained and elaborated in a number of publications. This current paper...
journal article 2021
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Luteijn-Nava Guerrero, G.D.C. (author), Hansen, Helle Hvid (author), Korevaar, G. (author), Lukszo, Z. (author)
The Netherlands aims at reducing natural gas consumption for heating in the housing sector. Although homeowners are responsible for replacing their heating systems and improving dwelling insulation, they are not always able to make individual decisions. Some projects require group decisions within and between buildings. We use an agent-based...
journal article 2021
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Zhao, Xiujie (author), Chen, P. (author), Gaudoin, Olivier (author), Doyen, Laurent (author)
This study proposes a framework to analyze accelerated degradation testing (ADT) data in the presence of inspection effects. Motivated by a real dataset from the electric industry, we study two types of effects induced by inspections. After each inspection, the system degradation level instantaneously reduces by a random value. Meanwhile, the...
journal article 2021
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Marynets, Vasyl (author), Marynets, K. (author), Kohutych, Oksana (author)
We study a boundary value problem for nonlinear partial differential equations of the hyperbolic type on the plain in a domain with a complex boundary. To find the missing data for the given boundary constraints, we solve a supplementary nonlinear problem. For the approximation of solutions, one constructive method is built.
journal article 2021
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Pols, C.F.J. (author)
Om de geringe leeropbrengst van practica te vergroten, ontwikkel en test ik in mijn promotieonderzoek een leerlijn onderzoeken. De activiteiten van deze leerlijn richten zich op<br/>het ontwikkelen van de benodigde kennis en kritische houding om een onderzoek succesvol uit te voeren. In dit artikel bespreek ik de eerste stap: leerlingen...
journal article 2021
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Deng, Q. (author), Santos, Bruno F. (author), Verhagen, W.J.C. (author)
Modern aircraft have thousands of parts, systems, and components that need to be recurrently inspected or replaced. To keep the fleet airworthy, maintenance planners have to schedule the maintenance checks for each aircraft and the associated tasks. In practice, these two complex problems are solved following the experience of planners,...
journal article 2021
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