Searched for: contributor%3A%22Spronck%2C+J.W.+%28graduation+committee%29%22
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Schots, Joost (author)
Bone drilling is a surgical action required for bone fixation using plates. The holes are currently drilled using a large, conventional drill. This causes problems when limited space is available, de to the size of the drill. For that reason a new, small Compact Drilling System is proposed. In earlier research a compact self-feeding mechanism...
master thesis 2022
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Meij, Joep (author)
Limited stroke automatic watch winding poses a challenge due to the proof mass range being smaller than the input displacements. Traditionally the proof mass is connected to the mainspring by a linear reduction transmission however this setup only functions effectively for specific accelerations. This paper proposes to use a nonlinear...
master thesis 2022
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Overes, Frank (author)
Holistic lithography uses feedback from a chip to improve the production process for the following batches of chips. However, as the features on a chip are on a nanometer scale, acquiring feedback is not simple. The features are too small for conventional light based metrology systems, therefore, scanning electron microscopes (SEM’s) are used....
master thesis 2021
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Rathi, Ambareesh (author)
To assist in the fast alignment of tiny components, Prodrive Technologies has developed a type of camera system called the Component Alignment Sensor (CAS) that is used on a pick-and-place machine. The system uses an optical target as the reference during its assembly and final testing steps. Two main components of the target are a glass reticle...
master thesis 2021
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Meijer, Romano (author)
In precision engineering, thermal stability is of great importance in order to keep up with the ever-increasing demand for faster and more precise positioning actuators. Most notably, actuator magnetizing coils dissipate heat to surrounding machine components as a result of Joule heating. With changing temperatures, system components expand and...
master thesis 2021
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Neelen, Rob (author)
Roll-to-Plate (R2P) nanoimprint lithography (NIL) is a fabrication process with the potential for low-cost high-volume fabrication of micro- and nano-patterns on large areas. As a result, R2P is regarded as a promising production process for micro- and nano-scale features which exceed the conventional wafer sizes. In addition, the process has...
master thesis 2021
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van der Aa, Arne (author)
Industry-wide there is an interest in chemical composition sensing of materials, which requires no sample preparation and can be implemented in real-time. Laser-Induced Breakdown Spectroscopy, or LIBS, is a measurement tool able to achieve this by exciting material, creating an analytical plasma followed by observing its atomic emission of light...
master thesis 2021
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Deshpande, Parth (author)
Use of earth observation satellites have grown at a very high rate over the past few decades. On a closer observation of things around, most of them uses satellites, directly or indirectly. Satellites are being used in the day-to-day life without being aware of its application. Satellites are used for small things like weather report,...
master thesis 2021
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Bastiaanse, Robin (author)
A pacemaker runs on a conventional battery that lasts for approximately 6-12 years, after which the pacemaker must be replaced. Converting the heart wall vibrations into electricity through a vibration energy harvester has been considered a promising solution to this problem. However, the complexity of the heart signals on which the energy...
master thesis 2021
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Lether, Remie (author)
Minimally Invasive Surgery (MIS) has made tremendous impact on hospitals worldwide. Introduced as a patient friendly alternative to open surgery by significantly reducing incisions size, benefits such as faster patient recovery time, and less pain for patients, are achieved. However, in MIS, rigid instrument shafts can impair surgeons’ dexterity...
master thesis 2021
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LI, Jiajin (author)
Scanning mirror is a widely used device in many optical systems to position reflected beam. Existing products include galvanometer and resonant scanner. They are intended for accurate positioning at low frequency range and fast scanning at the specified high frequency respectively. However, when a wide frequency range is involved, they might not...
master thesis 2020
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Zult, M.J. (author)
In 2018, there were more than 200 million reported cases of malaria worldwide, most of which were in Africa. Adequate diagnostics are required to properly treat the disease. According to the WHO, microscopic examination of a blood smear is the Gold Standard of malaria diagnosis. Currently, it is a labor-intensive process requiring trained...
master thesis 2020
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de Kater, Esther (author)
Background: During minimally invasive procedures, tissue damage can be limited by using smaller incisions and by using naturally occurring body orifices to reach the intervention site. During these procedures the need can arise to transport tissue. Think of a biopsy or the removal of polyps. This calls for a tool that can transport tissue and is...
master thesis 2020
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van Grieken, Hylke (author)
In Bicycle Motocross (BMX) racing, a fast gate start is crucial for overall race performance (Rylands2014). The goal of this study was to (1) provide a better understanding of how cyclists effectively propel the bicycle during BMX gate start, and (2) identify pedalling variables which are good predictors of a fast start." <br/>
master thesis 2019
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Lutgerink, Jochem (author)
The average worldwide internet traffic demand in 2022 is projected to be over 1200 Terabits per second. A fifth of this data would be transmitted using mobile networks. One of the technologies used for this is radio frequency (RF) telecommunication, but this technology is reaching its limits. Despite ongoing development, typical data rates are...
master thesis 2019
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Boots, Jelle (author)
Ferrofluid bearings provide a cheap and passive alternative to contactless bearings such as magnetic bearings and fluid bearings. The absence of stick-slip and the low viscous friction make them interesting for high precision applications. Despite the theoretical models available in literature, the number of design rules for ferrofluid bearings...
master thesis 2018
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Tedjawirja, Vincent (author)
The main goal of this master thesis is to develop a new low-cost radial air bearing system for the CT-scanner, which is currently expensive due to the strict tolerances on the large sized porous aerostatic radial air bearings as well as on the counter surface. This thesis has generated several potential low-cost air bearing system concepts. The...
master thesis 2018
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Fernandes, Rosnelo (author)
The use of robotic systems to perform MIS was given a boost in 2000, when Da Vinci Surgical system was granted FDA approval. Senhance surgical system by Transenterix, was the newest surgical system to be granted FDA approval in Oct 2017. The use of these systems is limited to high income countries due to its high costs and specialised components...
master thesis 2018
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van de Steeg, Ivo (author)
Background: Minimally invasive surgery (MIS) is a surgical procedure which is characterized by inserting long and slender instruments through small porthole incisions. On many occasions tissue will have to be extracted from the operation site through one of these small portholes, therefore the sheaths of the instruments that are inserted into...
master thesis 2018
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Gribnau, Thomas (author)
Since its invention, the Atomic Force Microscope has emerged into one of the most useful tools in<br/>nanotechnology due to its acclaimed abilities in exploring surface topography, micro- and nanoscale manipulation<br/>and characterization. The nonlinear interaction between the cantilever tip and the sample surface<br/>has been studied in great...
master thesis 2017
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