Searched for: subject%3A%22precision%22
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Timmer, Sebastiaan (author)
<div>As Neuroscience progresses, there is an increasing amount of research that endorses predictions and reducing of prediction errors as one of the main functions of the brain. active inference is a brain-inspired, mathematical framework that successfully implements this idea both in simulations as well as in robotics. The predictive nature of...
master thesis 2024
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Koens, Dennis (author)
High-tech systems are subjected to strict temperature requirements. Therefore temperature control using cooling water is vital for thermal stability. Unfortunately, components like pumps and fluid couplings generate flow disturbances, resulting in mechanical vibrations that influence the performance of the system. This research focusses on the...
master thesis 2023
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Stiller, Dominik (author)
Precision orbit determination for geodetic applications requires force models even for small perturbations. Radiation from the Sun and Moon is a significant source of perturbation in lunar orbits and inadequate modeling of radiation pressure (RP) can lead to large position errors. This paper describes the short-term effect of RP on the Lunar...
student report 2023
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Liu, Yixuan (author)
Linear time-invariant (LTI) controllers suffer from inherent limitations as the waterbed effect and Bode's gain-phase relationship. Reset control, a nonlinear strategy involving the reset of linear controllers, offers a potential solution to overcome these traditional LTI limitations. Based on the describing function analysis, the reset...
master thesis 2023
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Bezsilla, Janos (author)
Nowadays, many space missions require highly accurate pointing for Earth observation or cosmic vision purposes. However, the vibration environment from a spacecraft's structure and reaction wheels can cause disturbances in its line-of-sight stability and severely impact image quality. Additionally, these effects are not known precisely due to...
master thesis 2023
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Hagemann, Dan (author)
This work delves into designing and implementing an optimized self-centering lens mounting technique for the collimator and coupler lenses in the Universal Light Source (ULS) by ASML. The ULS aims to meet the growing demand for smaller logic nodes and higher throughput in optical metrology sensors. To achieve precise alignment and stability, the...
master thesis 2023
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Salas Lasala, María (author)
The Event Horizon Telescope (EHT) is a global array of telescopes that employs Very Long Baseline Interferometry (VLBI) techniques to image the event horizon of black holes. To overcome the limitations of ground-based telescopes, this thesis explores the mission concept involving a two-satellite constellation of space-borne telescopes deployed...
master thesis 2023
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Kanli, Emre (author)
This thesis describes the design and simulation of a capacitively-coupled autozeroed and chopped operational amplifier in the TSMC high-voltage BCD 0.18 μm 5 V technology. It uses chopping and autozeroing to achieve high precision (10 μV offset and 50 nV/√Hz noise density) and a capacitively-coupled input stage to safely handle beyond-the-rails...
master thesis 2023
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Schilder, Amaya (author)
Due to the limited availability of suitable livers for transplantation and the increasing use of suboptimal donor livers, which are more prone to ischemia-reperfusion injury (IRI), there is an urgent need for novel graft-ameliorating therapies. The promising capacities of (liver-derived) mesenchymal stromal cells ((L-)MSC) in mitigating IRI and...
master thesis 2023
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Zhang, Fengyan (author)
Geometric algorithms are usually designed based on the assumption of using arbitraryprecision representations. However, in modern computer systems floating-point arithmetic and finite-precision approximation are often used as implementing exact computations would require large computational resources and would be rather slow in the applications....
master thesis 2023
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Schupp, Eleen (author)
When a person suffers from severe to profound hearing loss, a cochlear implant (CI) can aid in restoring auditory perception and speech comprehension. To obtain good speech comprehension, fitting of a CI to the user’s specific characteristics is crucial. Fitting can be a time-consuming process which requires the cooperation of a CI user and is...
master thesis 2023
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Kortman, Jelle (author)
In the semiconductor industry, integrated circuits with nanometre scale structures are manufactured on silicon wafers. Particle contamination on the topside of the wafer can result in the defectivity of the entire die. In the ever-increasing efforts to create smaller structures onto a wafer particle contamination becomes more restrictive to...
master thesis 2023
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Roël, Felix (author)
Our remarkable sense of touch provides us the feedback that is crucial for successfully manipulating a wide range of objects.<br/>The unconscious synergy between touch and the precision grip is particularly astonishing.<br/>During precision manipulation, humans constantly control their grip force to maintain a safety margin of approximately 25...
master thesis 2022
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Chinari Subhechha Subudhi, Subhechha (author)
The applications for which the data from Earth observation satellites can be used are dependent on the precision and accuracy of the position of the satellite. Hence, precise orbit determination of satellites is crucial for the success of Earth observation satellites like the Sentinel family of satellites. TU Delft is an analysis center of the...
master thesis 2022
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Wiersma, Myrthe (author)
Ultrafast ultrasound localization microscopy (ULM) is a super-resolved vascular imaging method that provides a 10-fold improvement in resolution compared to ultrafast ultrasound Doppler imaging. Because typical ULM acquisitions accumulate large numbers of synthetic microbubble (MB) tracks over hundreds of cardiac cycles, transient hemodynamic...
master thesis 2022
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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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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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Lie, Casper (author)
Natural phenomena are continually changing the coastline and sculpting the land in various ways. By surveying these changes a map can be produced of a landscape in flux. But if the landscape is ever changing, what does it tell us about the precision of flux. The essay also tries to give an answer to the question if there can be error in flux or...
master thesis 2021
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Prundeanu, Alin (author)
Wheat is among the most important grains worldwide. For the assessment of wheat fields, image detection of spikes atop the plant containing grain is used. Previous work in deep learning for precision agriculture employs the already established object detectors, Faster R-CNN and YOLO, adapted for the given context. However, these models suffer...
bachelor thesis 2021
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Zwetsloot, Roel (author)
The purpose of this thesis is to evaluate a top-level topology for ultra-accurate power supplies. Chapter 3 shows that precision power supplies exist, but these are expensive and not stable on the long term. The correction scheme proposed in chapter 2 brings the accuracy of the best metrology systems to a high efficiency, low-noise power sup-ply...
master thesis 2020
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