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Havelka, Matej (author)The field of causal inference provides a variety of estimators that can be used to find the effect of a treatment on an outcome based on observational data. However, many of these estimators require the unconfoundedness assumption, stating that all relevant confounders are observed within the data. This assumption is quite strict and many real...master thesis 2024
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Shang, Y. (author)Transition zones in railway tracks, which occur at changes in track form and or substructure properties, are known to cause issues with track degradation. Examples can be found where a track section, usually a ballast track, transits to a slab track to cross a roadway or waterway through supporting structures such as bridges, level crossings,...doctoral thesis 2024
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Rinaldi, Lorenzo (author), Golinucci, Nicolò (author), Guerrieri, Giulia (author), Sanvito, F.D. (author), Rocco, Matteo Vincenzo (author), Colombo, Emanuela (author)Investing in low-carbon technologies, including light-duty vehicles, is a strategy to decarbonize the residential sector and private mobility. This work aims to assess the parameters driving the economic convenience of battery electric vehicles (BEVs) for a household, and what are the economic implications of BEV adoption on the total cost of...journal article 2024
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Truzman Ohayon, Ilan (author)The study delves into integrating green hydrogen technologies into the Iberian Peninsula's energy transition toward 2030, focusing on impacts and uncertainties. Both Spain and Portugal have national plans aiming to decarbonize critical sectors using renewable energies and green hydrogen.<br/><br/>The research investigates hydrogen's role in...master thesis 2024
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Postma, Thies (author)This study presents a novel approach for evaluating the effects of dynamic disturbances on optical performance using sensitivity analysis. The computation of optical performance for perturbed optical systems is too costly with state-of-the-art analysis software when applied in the use case for the optimization of the optomechanical interface,...master thesis 2024
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Dhirde, Mayur (author)The offshore wind industry is rapidly advancing, expected to play a crucial role in renewable energy production, with a growing emphasis on addressing associated environmental concerns, particularly the impact of underwater noise generated during the installation of wind turbines. In response, bubble curtain technology (BCT) has emerged as a...master thesis 2024
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Roeplal, R.N. (author), Pang, Y. (author), Schott, D.L. (author)Bed permeability is a crucial factor in blast furnace performance which depends on the material distribution achieved through charging. Since a homogeneous bed of pellet and sinter is recommended, it is crucial to understand whether segregation of the pellet-sinter mixture occurs during charging. The Discrete Element Method is useful in this...journal article 2024
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Valiya Valappil, S. (author), Goosen, J.F.L. (author), Aragon, A.M. (author)Ultrasonic flowmeters face unique challenges since, in addition to withstanding high fluid pressures, they have to avoid crosstalk, which is the interaction of the signals traveling through the fluid and the solid pipe. To avoid the crosstalk, which leads to poor accuracy or complete loss of the required signal, we develop a mounting...journal article 2024
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Fidalgo Domingos, D.A. (author), Wellens, P.R. (author), van Wingerden, J.W. (author)As a result of more stable wind conditions and the depletion of near-shore locations, wind farms are moving farther offshore into deeper waters, challenging the current limits of offshore heavy-lift operations. This paper presents and verifies a novel frequency-domain framework to perform extensive site-specific analysis, of floating...journal article 2024
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Du, L. (author), Deng, Shanliang (author), Cui, Z. (author), Poelma, René H. (author), Beelen-Hendrikx, Caroline (author), Zhang, Kouchi (author)In this study, we combined finite element method (FEM) based on Ansys and Noesis Optimus software to investigate the effect of bump structures and loading conditions on the electromigration properties of solder bumps in WLCSP. A numerical model considering current density, vacancy concentration, stress and temperature was utilized to calculate...conference paper 2024
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Nativio, A. (author), Jovanovic, O. (author), van der Hoek, J.P. (author), Kapelan, Z. (author)The concept of circular economy, aiming at increasing the sustainability of products and services in the water and other sectors, is gaining momentum worldwide. Driven by this concept, novel bio-composite materials produced by recovering resources from different parts of the water cycle are now manufactured in The Netherlands. The new materials...journal article 2024
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Aigner, Lukas (author), Werthmüller, D. (author), Flores Orozco, Adrián (author)We investigate the application of the distance-based global sensitivity analysis (DGSA) to evaluate the sensitivity of electrical model parameters obtained from transient electromagnetic (TEM) data including induced polarization (IP) effects. We propose novel open-source forward modeling and inversion routines for single-loop TEM data...journal article 2024
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Iori, J. (author), Bottasso, Carlo Luigi (author), McWilliam, Michael Kenneth (author)Control co-design is a promising approach for wind turbine design due to the importance of the controller in power production, stability, load alleviation, and the resulting coupled effects on the sizing of the turbine components. However, the high computational effort required to solve optimization problems with added control design variables...journal article 2024
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Theulings, M.J.B. (author), Maas, R. (author), Noel, L.F.P. (author), van Keulen, A. (author), Langelaar, Matthijs (author)In topology optimization of transient problems, memory requirements and computational costs often become prohibitively large due to the backward-in-time adjoint equations. Common approaches such as the Checkpointing (CP) and Local-in-Time (LT) algorithms reduce memory requirements by dividing the temporal domain into intervals and by...journal article 2024
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Pouwels, Xavier G.L.V. (author), Kroeze, Karel (author), van der Linden, N. (author), Kip, Michelle M.A. (author), Koffijberg, Hendrik (author)Objectives: Health economic (HE) models are often considered as “black boxes” because they are not publicly available and lack transparency, which prevents independent scrutiny of HE models. Additionally, validation efforts and validation status of HE models are not systematically reported. Methods to validate HE models in absence of their...journal article 2024
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van der Werff, Daan (author)In the conceptual design phase, OEMs perform technology assessment to identify feasible solutions for their new aircraft. When the OEM is unable to assess a certain technology themselves, they consult Tier-1 suppliers to involve<br/>them in the design process. The suppliers have higher fidelity analysis tools that can help the OEM with their...master thesis 2023
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KARYSTINOU, DIMITRA (author)The advancement of floating wind turbine technology in recent years necessitates accurate predictions of their behaviour using various simulation tools. Utilizing multi-fidelity tools like OpenFAST allows for comprehensive calculations of the entire floating wind turbine structure. However, the precision of these calculations is challenged by...master thesis 2023
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Krielaart, Thomas (author)Crane hardstands serve as crucial platforms for supporting heavy lifting equipment and ensuring operational efficiency. However, crane hardstands are not infinitely stiff and will deform upon loading. Uneven loading during wind turbine installation will result in differential deformation of the crane hardstand, causing the crane to tilt. A small...master thesis 2023
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Jomerts, Arvis (author)3D NAND memory devices are intrinsically very cost sensitive, implying that their size, and hence logic area must be limited in order to acquire a chip which is able to conquer the competitive market price. Market forecasts of upcoming NAND products predict Input/Output (I/O) speed increase well beyond 2 Gb/s that is the current industry...master thesis 2023
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Zinjarde, Pranav (author)Due to the high aspect ratio and low induced drag of aircraft with strut-braced wings, they are being extensively studied due to their fuel-saving potential. This thesis aims to expand the fundamental knowledge in the design of aircraft with Strut Braced Wings (SBW) by achieving the following objectives. <br/><br/>The objectives of this thesis...master thesis 2023