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Starmans, M.P.A. (author), Miclea, Razvan L. (author), Vilgrain, Valerie (author), Ronot, Maxime (author), Purcell, Yvonne (author), Verbeek, Jef (author), Niessen, W.J. (author), Klein, Stefan (author), Thomeer, Maarten G. (author)Rationale and Objectives: Distinguishing malignant from benign liver lesions based on magnetic resonance imaging (MRI) is an important but often challenging task, especially in noncirrhotic livers. We developed and externally validated a radiomics model to quantitatively assess T2-weighted MRI to distinguish the most common malignant and...journal article 2024
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Shirmohammadi, F. (author), Draganov, D.S. (author), Ghose, R. (author)Seismic interferometry (SI) retrieves the Green function between two receiver locations using their recordings from a boundary of sources. When using sources and receivers only at the surface, the virtual-source gathers retrieved by SI contain pseudo-physical reflections as well as ghost (non-physical) reflections. These ghost reflections are...journal article 2024
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Fiscaletti, D. (author), Lima Pereira, L.T. (author), Ragni, D. (author)The present study focuses on the application of finlet rails as a passive technique of flow control to mitigate trailing-edge noise. Finlet rails are small cylinders whose axes are aligned along the streamwise direction, transversally positioned with respect to the trailing edge. In the first part of this study, the effects of finlet geometry...journal article 2024
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Christodoulou, Anthony G. (author), Cruz, Gastao (author), Arami, A. (author), Weingärtner, S.D. (author), Artico, Jessica (author), Peters, Dana (author), Seiberlich, Nicole (author)Cardiovascular magnetic resonance (CMR) protocols can be lengthy and complex, which has driven the research community to develop new technologies to make these protocols more efficient and patient-friendly. Two different approaches to improving CMR have been proposed, specifically “all-in-one” CMR, where several contrasts and/or motion states...review 2024
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Zhao, Y. (author), Zhang, Y. (author), Tao, Q. (author)Deep learning-based methods have achieved prestigious performance for magnetic resonance imaging (MRI) reconstruction, enabling fast imaging for many clinical applications. Previous methods employ convolutional networks to learn the image prior as the regularization term. In quantitative MRI, the physical model of nuclear magnetic resonance...conference paper 2024
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Shoja, Aydin (author)Reflection seismology aims to estimate the Earth's subsurface elastic parameters for further investigation by geologists and engineers. This involves generating elastic waves using seismic sources and recording the Earth's response with receivers. The subsurface model is typically considered a combination of a background model and a short...doctoral thesis 2023
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Cueto Corral, Pablo (author)This study explores the flowfield around a pusher propeller-wing configuration using Lagrangian Particle Tracking (LPT). It assesses LPT’s capability to characterise propeller-wing interactions, emphasising its ability to resolve complex flow dynamics.<br/><br/>The experiment successfully achieves high particle concentrations downstream of the...master thesis 2023
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Hadjigeorgiou, Georgios (author)This thesis research focuses on MRI technology and more specifically the evaluation of the generalized signal model (full-wave signal). The research aims to investigate how dielectric properties influence the magnetic fields in MRI scans, by using a more complex signal model that takes into account scattered fields caused by dielectric...master thesis 2023
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- Gobeil, J. (author) doctoral thesis 2023
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Bellouki, Imad (author)This work presents an ASIC designed for portable (wearable) ultrasound (US) imaging systems. The ASIC employs a new type of energy-efficient high-voltage (HV) transmit pulser able to generate pulses up to 30V directly from a low-voltage battery supply to excite an ultrasound transducer. HV operation is a necessity in US imaging transceiver...master thesis 2023
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- de Wit, J. (author) doctoral thesis 2023
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Verseput, Marien (author)Magnetic resonance imaging (MRI) is a non-invasive tool to image the body’s anatomy and physiology, but suffers from long scan times. Compressed Sensing (CS) is used to accelerate MRI scans by incoherently taking fewer measurements and using a nonlinear optimization algorithm to image the undersampled data. Convex optimization techniques are...master thesis 2023
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Knops, Per (author)X-ray imaging systems play an important role in the diagnostic process of various medical conditions. Generating an accurate artificial X-ray image has multiple advantages. It allows for flexible configurations during generation. The resulting images can reduce testing time and cost, help the training of surgeons, and increase the amount of data...master thesis 2023
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van der Hoek, D.C. (author)Offshore wind farms suffer substantial energy losses due to the interference of wind turbine wakes, with estimates indicating losses of approximately 10%. This thesis aims to advance the state of the art of wind farm flow control techniques for maximizing wind farm power performance. Wind farm flow control can be divided into three categories:...doctoral thesis 2023
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Zuidema, W. (author)In this thesis, the design and engineering considerations for a multi-beam scanning electron microscope (MBSEM) are discussed. This microscope can benefit biological research in various ways. It can give new insights into the inner workings of a multitude of biological systems that were hard to get using previously existing instrumentation. For...doctoral thesis 2023
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van Dijk, Robbin (author)This work demonstrates the imaging of (near) diffraction-limited images in the THz domain using a CMOS integrated camera. A Quasi Optical Setup is fabricated, aligned the radiation patterns and losses are characterized.master thesis 2023
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Klughammer, N. (author)In this thesis, we have introduced palladium zero-mode waveguides (Pd ZMWs) as a valuable tool for biophysics research and have showcased several applications thereof. We started by using them as single-molecule sensors for free translocations of fluorophores, proteins, and voltage-driven translocations of DNA. By studying salt-gradient driven...doctoral thesis 2023
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Ujjaini Kempaiah, K. (author)A flying aircraft consumes fuel to overcome air resistance during its motion. A significant part of this consumption (55%) is due to turbulent skin friction arising at the interface of the aircraft surface and the air. The current work aims to develop and investigate relevant turbulent skin-friction reduction techniques and assist in advancing...doctoral thesis 2023
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Dieters, Sibren (author)New mining and exploration projects have revived across Europe with an increasing demand for critical raw materials driven by the energy transition and unstable political conditions. Hyperspectral imaging proves to be an excellent tool for quick and efficient non-invasive mineral exploration. By mounting hyperspectral- and LiDAR sensors on...master thesis 2023
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Artz, Laura (author)Objective:<br/>This pilot study aims to assess the environmental impact of Positron Emission Tomography/Computed Tomography (PET/CT) imaging, in the context of efforts to mitigate climate change. This is studied by investigating the energy usage, waste generation, and the radiopharmaceutical production.<br/><br/>Methods:<br/>Power measurements...master thesis 2023