Searched for: subject%3A%22resonant%22
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Splitthoff, L.J. (author)
Superconducting circuits in cryogenic environments form an excellent material platform for the realization and study of quantum systems. <br/>In this thesis, we continue the exploration of novel types of circuit elements which expand the circuit quantum electrodynamics toolbox to enable exotic, and potentially better circuit implementations. To...
doctoral thesis 2024
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Vermeulen, Mark (author)
Magnetic Resonance Imaging (MRI) is an important imaging modality, since it can create high-resolution cross-sectional images of the human body. In MRI scanners, the nuclear spin magnetization is excited using radio-frequency pulses. Images are created based on the time-evolution of this magnetization, which is characterized by relaxation times ...
master thesis 2024
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Wansink, Nick (author)
Micromechanical resonators, which have become feasible due to advanced manufacturing techniques, have shown several interesting phenomena including mode coupling in a range of applications that span metrology and sensing. Conventional fabrication methods of these resonators have been used throughout the field. However, fabrication of...
master thesis 2024
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Mulder, Ernst (author)
The offshore wind industry is increasingly constructing wind turbines farther from the coast, in deeper water, and under more extreme conditions. This requires larger (monopile) foundations and necessitates new installation methods. An important factor affecting workability is the dynamic behavior of the monopile during installation. <br/>The...
master thesis 2024
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Wopereis, Michiel (author)
Nanomechanical resonators made of two-dimensional (2D) materials are the subject of intensive research due to their remarkable properties, allowing them to operate at high frequencies with high sensitivity. However, dissipation losses and manufacturing issues have prevented them from reaching their full potential. This thesis aims to overcome...
master thesis 2024
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Belardinelli, P. (author), Lenci, S. (author), Alijani, F. (author)
Through molecular dynamics simulations, we demonstrate the possibility of internal resonances in single-walled carbon nanotubes. The resonant condition is engineered with a lack of symmetry in the boundary condition and activated by increasing the energy exchange with a coupled thermal bath. The critical temperature threshold for initiating...
journal article 2024
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Van den Eynde, Jef (author), Westenberg, Jos J.M. (author), Hazekamp, Mark G. (author), Lamb, Hildo J. (author), Jongbloed, Monique R.M. (author), Wentzel, Jolanda J. (author), Kenjeres, S. (author), Dekkers, Ilona A. (author), Rijnberg, F.M. (author)
BACKGROUND: Kidney disease is the most important predictor of death in patients with a Fontan circulation, yet its clinical and hemodynamic correlates have not been well established. METHODS AND RESULTS: A total of 53 ambulatory patients with a Fontan circulation (median age, 16.2 years, 52.8% male patients) underwent advanced cardiovascular...
journal article 2024
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Azevedo Vasconcelos, A.C. (author), Valiya Valappil, S. (author), Schott, D.L. (author), Jovanova, J. (author), Aragon, A.M. (author)
Underwater noise resulting from the monopile driving process can cause severe damage to marine wildlife, such as hearing injury, behavioral disturbance, or even death. Although current noise-attenuation techniques used in this process have shown a significant noise reduction at high frequency ranges, mitigating low-frequency noise is still...
journal article 2024
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Wang, Q. (author), Lechtenfeld, Oliver J. (author), Rietveld, L.C. (author), Schuster, Jonas (author), Ernst, Mathias (author), Hofman-Caris, Roberta (author), Kaesler, Jan (author), Wang, Chunmiao (author), Yang, Min (author), Yu, Jianwei (author), Zietzschmann, F.E. (author)
Activated carbon is employed for the adsorption of organic micropollutants (OMPs) from water, typically present in concentrations ranging from ng L<sup>−1</sup> to μg L<sup>−1</sup>. However, the efficacy of OMP removal is considerably deteriorated due to competitive adsorption from background dissolved organic matter (DOM), present at...
journal article 2024
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Liu, Hanqing (author), Baglioni, G. (author), Boix-Constant, Carla (author), van der Zant, H.S.J. (author), Steeneken, P.G. (author), Verbiest, G.J. (author)
The high susceptibility of ultrathin two-dimensional (2D) material resonators to force and temperature makes them ideal systems for sensing applications and exploring thermomechanical coupling. Although the dynamics of these systems at high stress has been thoroughly investigated, their behavior near the buckling transition has received less...
journal article 2024
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Wang, G. (author), Bar, Daniel (author), Schreier, S. (author)
This study examines the potential of a new type of floating seawall, made up of retired large-scale oceangoing vessels, to be used in open water and exposed coastal areas. The main objectives of the research are to assess the effectiveness of the floating seawall concept, to determine the contribution of the gap resonance to wave attenuation,...
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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Hedayati, R. (author), Lakshmanan, Sandhya P. (author)
The aim of the present work is to design active acoustic metamaterial consisting of an array of Helmholtz resonators and fabricating them using an additive manufacturing technique in order to assist in a reduction in noise levels in aerospace applications. To this aim, initially, a passive metamaterial consisting of an array of 64 Helmholtz...
journal article 2024
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Alimohammadi, Hossein (author), Vassiljeva, Kristina (author), Hassan HosseinNia, S. (author), Petlenkov, Eduard (author)
This article explores internally coupled resonators in metamaterial systems, focusing on mechanical and electromechanical coupling. The article provides a thorough examination of stability within the context of internally coupled resonators. It establishes stability criteria, emphasizing the importance of strictly stable systems in practical...
journal article 2024
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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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Gobeil, J. (author)
doctoral thesis 2023
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Nieuwenhuis, Jelte (author)
master 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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Keşkekler, A. (author)
Micro and nanomechanical resonators are essential to the state-of-the-art communication, data processing, timekeeping, and sensing systems. The discovery of graphene and other two-dimensional (2D) materials has been a profound source of inspiration for the next generation of these devices, owing to their exceptional mechanical, electrical, and...
doctoral thesis 2023
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Cupertino, A. (author)
Nanomechanical resonators have become integral to technological advancements and scientific progress in modern society. Not only do they enable exquisite precision in sensing applications, but they also allow for exploring quantum mechanics and the development of quantum technologies. These applications require resonators with high quality...
doctoral thesis 2023
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