Searched for: subject%3A%22Insertion%22
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Garner, E. (author)
Background: Despite over a century’s worth of technical improvements, the longterm survivability associated with orthopedic implants continues to fall short. In contrast to earlier designs, implant failure is no longer caused by structural failure of the implant itself. Rather, it results from the implant’s long-term detrimental effects on the...
doctoral thesis 2024
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Jiang, Haitao (author)
The technique of ultrasound-guided needle insertion is commonly employed in various clinical fields, including biopsy, anesthesia, brachytherapy, and ablation. However, the visibility of the needle in ultrasound (US) images remains a persistent challenge. To improve the guidance accuracy of needle insertion during interventions, it is crucial to...
master thesis 2023
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Riti, Cristina (author)
Insertion maneuvers are used to move a spacecraft from an open orbit (parabolic or hyperbolic) into a closed orbit around a target body. These maneuvers are key components in any space mission considering orbiting a body for a large amount of time, for exploration or landing; the hyperbolic orbit will be the one that will be used to transfer...
master thesis 2023
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Garner, E. (author), Wu, J. (author), Zadpoor, A.A. (author)
Patient-specific implants offer a host of benefits over their generic counterparts. Nonetheless, the design and optimization of these components present several technical challenges, among them being the need to ensure their insertability into the host bone tissue. This presents a significant challenge due to the tight-fitting nature of the...
journal article 2023
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Vermeer, W.W.M. (author), Chandra Mouli, G.R. (author), Bauer, P. (author)
This paper presents a multi-objective approach to designing an optimal PV-BES assisted EV fast charging station. The trade-offs between lifetime net present value (NPV), energy independence, and grid power reduction are analyzed using particle swarm optimization and real 50kW fast charging data. Our results show a maximum lifetime profit of...
conference paper 2022
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Koopman, Laurence (author)
Breast cancer is currently the most prevalent type of cancer. The concluding diagnosis can be obtained with an MRI-guided biopsy. However, due to respiratory movement and human error, the procedure can require multiple attempts, resulting in harmful consequences. To reach the target at the first attempt, the precision of the procedure should be...
master thesis 2021
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Merino Martinez, R. (author), Pieren, Reto (author), Schäffer, Beat (author)
Wind turbines represent an encouraging option for sustainable energy but their noise emissions can be an issue for their public acceptance. Noise reduction measures, such as trailing-edge serrations or permeable inserts, seem to offer promising results in reducing wind turbine noise levels. This manuscript presents a novel holistic approach...
review 2021
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Kortenhorst, Julia (author)
Traditionally, ships are powered by fossil fuels in combustion engines, causing 3% of global greenhouse gas emissions. Alternative installations have yet to prove their reliability and are currently not as cheap or technological ready. <br/>To enable ship-owners to prepare their ship for the future, but postpone their decision on which...
master thesis 2020
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Monreal Madrigal, Alejandro (author)
Magnetic Resonance Imaging is one of the most widely used imaging modalities nowadays and it performs especially well imaging human organs such as the brain and liver. One of its main limitations is the relatively long imaging times, to overcome this issue and speed up the data acquisition, several techniques such as Parallel Imaging or PI have...
master thesis 2020
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Brown, J.M.C. (author), Brunner, S. (author), Schaart, D.R. (author)
Organ-specific, targeted field-of-view (FoV) positron emission tomography (PET)/magnetic resonance imaging (MRI) inserts are viable solutions for a number of imaging tasks where whole-body PET/MRI systems lack the necessary sensitivity and resolution. To meet the required PET detector performance of these systems, high count-rates and...
journal article 2020
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van der Graaf, Juriaan (author)
In cochlear implantation surgery, the appropriate placement of the electrode array into the cochlea is vital. Suboptimal placement of the electrode array may lead to reduced hearing performance and speech recognition after the surgery. Currently, there are methods to confirm the electrode position post-operatively (e.g. through a CT scan), but...
master thesis 2019
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Merino Martinez, R. (author), Pieren, R.D. (author), Snellen, M. (author), Simons, D.G. (author)
Noise emissions from wind turbines are one of the main issues that the wind energy industry must deal with nowadays. Strict noise regulations often prevent wind turbines to operate at maximum power conditions, causing large losses of power production and, hence, of revenue. Several noise reduction measures have been proposed so far, but the...
conference paper 2019
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Kuipéri, Josette (author)
Background: When a suspicious lesion is detected, a thorough examination is essential for the diagnostics of the lesion. Information about the nature and character of the lesion is crucial for the determination of the disease and an appropriate corresponding treatment plan. Taking a biopsy plays an important role in this examination. A biopsy is...
master thesis 2018
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van der Velden, sander (author)
Treatment of liver diseases is often done by means of interventional radiology and thereby needles are widely used. These needles are under constant development and therefore needle-tissue interaction data are necessary. The goal of this study is to provide data on needle forces during puncturing of liver blood vessels. These data can be used to...
master thesis 2018
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Dinaux, Nina (author)
Currently, measuring wear of the insert of knee implants can only be accurately done in vitro. There are yet no accurate in vivo techniques that can capture and deliver data in real time. Therefore, the main objective of the research reported in this thesis was to introduce and validate a polyethylene insert with integrated wear sensors into...
master thesis 2018
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Adrichem, Don (author)
Liver cancer causes 700.000 deaths annually. To assess new devices and pre-clinical procedures for treatment, a safe test environment can be provided by a phantom. Phantoms act as a surrogate for certain physical properties of tissue. The purpose of this study is to design, construct and evaluate an anthropomorphic liver phantom, which simulates...
master thesis 2018
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Santarsiero, Manuel (author), Bedon, Chiara (author), Louter, P.C. (author)
Laminated glass components are usually realized by bonding glass plates using interlayer polymers that develop adhesion forces during lamination. Recently, these adhesion forces have been used also to realize special adhesive connections for structural glass components and assemblies. The typical example of such a joining technique is...
journal article 2018
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Peters, K.R. (author)
The goal of the thesis (executed for Fokker Aerostructures) was to further the understanding of critical parameters in the DCB test method for thermoplastic composites. The influence of fiber bridging, specimen thickness, insert film thickness, crack length and crack opening rate are investigated by means of experimental DCB tests for...
master thesis 2017
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Hogervorst, J.C. (author)
Abstract—Percutaneous needle insertion is a minimally invasive technique, in which intervention effectiveness depends on needle placement accuracy. Targeting specific areas is difficult as needle trajectory is influenced by the highly variable and unpredictable nature of soft tissue. Furthermore the physician receives very limited information,...
master thesis 2013
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Gahler, M.C. (author)
Accurate positioning of the needle tip during insertion is essential to ensure a maximum effect of the treatment. Target error is a problem and a lot research fields aim to improve needle insertions. The possibility to measure cutting force and stiffness force separately from friction forces supports the development of new types of needles,...
master thesis 2012
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