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A Biopolymer-Inspired Study on the Poynting Effect of Isotropic Materials

PAN, ZHE-HONG (author)

In recent times, soft matter has gained significant interest among researchers in the fields of biomechanics and biomedicine, especially in areas like soft robotics and biopolymers, due to its remarkable ability to undergo substantial deformations. Soft robotics often requires materials that can flexibly adapt to or mimic the movements of living...

master thesis 2023

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Multi-resolution space-time topology optimization

Chakraborty, Budhaditya (author)

In the realm of traditional additive manufacturing, design and fabrication sequence planning have historically followed separate tracks. However, recent strides in the field, particularly in the utilization of robotic arms with multiple degrees of freedom, have brought forth a revolutionary approach known as Space-Time Topology Optimization ...

master thesis 2023

document

Identification of Bacteria with Artificial Intelligence

Mendoza Silva, Santiago (author)

Bacterial identification is crucial for addressing infectious diseases and enabling effective treatment strategies. Conventional bacteria identification methods like MALDI-TOF, while efficient, lack the capability for screening the effectiveness of antibiotics. On the other hand, existing antimicrobial resistance (AMR) tests, despite being...

master thesis 2023

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Imaging the SAW Field on Suspended 2D Membrane

SUN, YUE (author)

Surface acoustic wave (SAW) is widely used in biological research and sensor applications, acomprehensive understanding of SAW propagation and visualization on suspended 2D membranes is crucial for the manipulation of nanoparticles in biological research and sensitivity improvement of SAW sensors based on 2D material. The initial step of this...

master thesis 2023

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A geometric approach for controlling local overheating in topology optimization for additive manufacturing

DAS, MANABENDRA NATH (author)

Additive manufacturing (AM) has revolutionized part manufacturing, offering unprecedented design freedom and the ability to fabricate intricate structures. Computational design methods like topology optimization (TO) effectively capitalize on AM's design freedom. However, manufacturability constraints must be considered to ensure reliable...

master thesis 2023

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Photonic Micro-Mechanical Acoustic Emission Sensors for Untrasonic Non-Destructive Testing

Zhang, Xinshuo (author)

Non-Destructive Testing (NDT) of infrastructures has become an increasingly prominent topic in contemporary society with great significance in terms of safety, economy and environmental protection. Acoustic Emission (AE) technology is a representative NDT technology based on passive ultrasonic guided waves, which has the advantages of large...

master thesis 2023

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Mechanical amplification for sensitivity enhancement of a FBG-based sensor

Iedema, Menno (author)

High-tech machines are being improved by extend- ing product quality inspections through implementing better sensors. The resolution of an integrated optical sensor can be optimized through mechanical amplification. In this work mechanical sensitivity enhancement of a Fiber Bragg Grating based sensor is realized, through optimizing output...

master thesis 2023

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Generation of quantum emitters in hBN via strain engineering for biosensing applications

Flores Cervello, Mireia (author)

This master thesis explores strain-induced quantum emitters in hexagonal boron nitride (hBN) as novel optical nanoprobes for Förster resonance energy transfer (FRET)-based biosensors. These types of emitters could outperform conventionally used fluorophores due to their high brightness, stability in harsh environments, biocompatibility and ease...

master thesis 2023

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Observations of the quasi-steady aerodynamic model of the Atalanta project for additional velocity conditions

KOTTISWARAN, JAYESH BALAJI (author)

This research work presents the observations of the updated quasi-steady aerodynamic model of the Atalanta project, a flapping wing Micro Air Vehicle (MAV) project, for additional velocity conditions. The main focus of this research work is to update the existing quasi-steady model of Q.Wang developed for hovering conditions since its...

master thesis 2023

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Autonomous Underwater Docking: Towards vertical docking of an autonomous underwater vehicle to an unmanned surface vehicle in rough seas

van Vliet, Bas (author)

The offshore industry is adopting Autonomous Underwater Vehicles (AUVs), to decrease the costs associated with surveying underwater sites. Despite requiring less human supervision, AUVs still depend on costly servicing from a vessel, before and after deployment. Combining an AUV with an Unmanned Surface Vessel (USV), a survey vessel that...

master thesis 2023

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Shape correction for 3D laser marking

Chuang, Yu-Xuan (author)

inPhocal, a startup company specialized in laser marking, developed a novel optical module to make the depth of focus more than 50mm, and wants to replace ink marking by this laser marking system in the production line when marking information on products. Distortion will always happen when marking 2D patterns onto 3D objects with laser, so...

master thesis 2023

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Air loading on ultrathin graphene membranes for microphone application

van Ruiten, Cas (author)

This thesis explores the challenges of using ultrathin graphene membranes in microelectronic mechanical sensors (MEMS) technology, specifically in the development of MEMS microphones. Graphene, being only an atom thin and one of the strongest known materials, offers promising potential for further miniaturization of MEMS microphones. However,...

master thesis 2023

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Fatigue Based Topology Optimization of an Offshore Wind Turbine

Slebioda, Marek (author)

Offshore wind turbines have seen a significant increase in size over the past decades. A critical consequence of this increase in size is a substantial increase in the torque transferred from the wind turbine rotor. This leads to the necessity of larger and heavier drivetrains to adhere to structural failure requirements and subsequently to...

master thesis 2023

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Fabrication methods of a novel 3D hybrid stiffness scaffold for neuron mechanosensing

Kuo, Chihao (author)

master thesis 2023

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Parametric study of an elastic singularity-based frequency doubler for concatenation

Samuels, Luuk (author)

The use of elastic frequency multipliers presents the ideal platform to address the coupling between the footprint and range of motion of elastic mechanisms. By transmitting unidirectional into reciprocating motion they efficiently increase the range of motion without a huge compromise in size. In this thesis, an elastic<br/>frequency doubler...

master thesis 2023

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Two-photon polymerization-based 3D-multi-electrode arrays for electrical monitoring of neuronal cells

Michalica, Thomas (author)

3D-multi-electrode arrays (3D-MEAs) are needed to overcome the limitations of 2D-multi-electrode arrays (2D-MEAs) and enable the electrical characterization of 3D neuronal cultures in in vitro brain models, advancing the understanding of neurological disorders and paving the way to personalized medicine. The aim of this thesis was to overcome...

master thesis 2023

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Design of 3 DoF and 6 DoF Force and Moment Balanced Manipulators Based on the Spatial Pantograph Linkage

Withagen, Luuk (author)

master thesis 2023

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Designing a suspended silicon nitride GHz acoustic beam splitter

van der Vis, Max (author)

Research has shown concepts of phononic integrated circuits (PnICs) consisting of multiple acoustic waveguides and beam splitters. Traveling acoustic waves experience energy loss when moving. Minimizing these losses is critical for large and complex PnICs. By fabricating on-chip PnICs, it is possible to operate under vacuum and at low...

master thesis 2023

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A new type of energy harvester for traffic induced bridge vibrations

van den Bergh, Michael (author)

Energy harvesters subtract energy from their surroundings and convert this to electrical energy. Even though energy output is generally low, energy harvesters can offer great value by offering the possibility of self-sustaining devices, combined with the developments in low power semiconductors. Many examples can be found of applications that...

master thesis 2023

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Utilizing topology optimization to create cleanable structures

Peijen, Arjen (author)

Topology optimization is a valuable tool for the optimization of all kinds of structures. It can create highly efficient but complex designs. This complexity can make these structures challenging to clean. However, cleanability is often a requirement in, for example, the medical or food industries. Currently, no method exists to reduce the...

master thesis 2022