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Margert, Andrei (author)
Acidizing is a widely used technique for intensification of geothermal wells. At certain conditions, acid injection results in a formation of highly conductive channels, e.g. wormholes. The associated rock matrix dissolution is highly nonlinear and may influence the fluid flow as well as rock properties. Wormhole patterns and breakthrough time...
master thesis 2021
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Sprokkereef, Jasper (author)
When containers are transported on synchromodal bookings from their origin to their destination, the transport supplier can decide which combination of trucks, trains, and ships to use. This gives transport suppliers many options to route the container through the synchromodal network. Current literature on the individual routing of containers...
master thesis 2021
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Braam, Merijn (author)
Moving towards the Dutch circularity goals of 2050, this project aims to diminish the amount of construction waste released by the demolition of 282 post-war dwellings in the Nieuwenhuysenbuurt in Amsterdam West (1954). Through the use of a flexible and demountable building system, construction waste is diminished now and in the future.
master thesis 2021
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van Dommelen, Pim (author)
Some propellants currently used in space propulsion have the disadvantage of being dangerous to humans and the environment. A wellknown example of this are hydrazine and its derivatives which are toxic, corrosive, and carcinogenic. These disadvantages have led to a search for less hazardous storable liquid propellants, often referred to as green...
master thesis 2021
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Roulaux, Bas (author)
Flapping-Wing Air Vehicles (FWAV) are autonomously flying vehicles that use their flapping wings to simultaneously stay aloft and enable controllable flight. FWAVs that are capable of controllable flight are reported in literature, though a theoretical background of the aerodynamic performance of different attitude control mechanisms is absent...
master thesis 2021
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Robeerts, Tori (author)
Twisted and coiled polymer muscles (TCPMs) show promise to function as artificial muscles, because of their lightweight, low cost, large contraction, and respectively low hysteresis. A TCPM contracts when it is heated and extends when it is cooled. Different modeling and controlling techniques have been implemented. \cite{VanDerWeijde_2019}...
master thesis 2021
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Dinkla, Rogier (author)
Wind turbines offer an appealing method for power generation. In the fight against global warming wind energy helps realise green house gas emission reduction targets. Moreover, given a globally increasing demand for energy, the role of wind energy is set to become even more important. Historically, the cost of wind energy has decreased...
master thesis 2021
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Sharma, Shrinidhi (author)
Integrated circuits (ICs) are susceptible to damage by Electrostatic Discharge (ESD), which necessitates protection diodes. However, these diodes can cause leakage currents in the range of picoamperes, dominating the input current of CMOS ICs. This thesis presents the implementation of a low leakage bootstrapped ESD protection circuit for...
master thesis 2021
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Gulhar, Dhruv (author)
Laparoscopy involves the use of various instruments for performing different functions. As a consequence, time is spent in exchanging the various instruments, adding to the overall operation time. In order to reduce this overall operation time and solve this problem, the number of instrument exchanges need to be reduced. Reducing the number of...
master thesis 2021
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Bakker, Geert (author)
Microgrids are a promising tool that can help transition the electricity grid towards a smart grid. They can provide significant benefits to the power grid in the form of increased reliability and flexibility. The microgrid controller sets the electricity consumption and generation of all controllable devices within the microgrid and controls...
master thesis 2021
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van den Ouden, Florian (author)
Applications for thermoelastic metamaterials, in which extremely positive, zero or negative thermal expansion is desired, are plentiful. Nevertheless they are rarely applied, due to their poor manufacturability. To enhance their applicability, a topology optimization framework is proposed and verified, able to generate finite thermoelastic...
master thesis 2021
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Pruijsers, Tom (author)
This work is a part of the Automated Rotor Blade Inspection (ARBI) project. ARBI aims to improve the rotorcraft RTB process with novel rotor blade measurement equipment such as 3D scanning, thermography and shearography. The research aims to quantify the effects of changes in blade properties on rotor vibration levels for CH-47 Chinook. This is...
master thesis 2021
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Hesselink, Florian (author)
The Dutch heating transition involves changing the heating systems of eight million buildings to a sustainable alternative by 2050. Many heating system technologies are available, but deciding which systems are cheapest for all these buildings is a difficult question to answer. Local policymakers are increasingly making use of heating transition...
master thesis 2021
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Bongaardt, Laura (author)
Robots that use legged locomotion have the ability to overcome obstacles and can negotiate a wide range of difficult terrains, such as encountered in outer-space missions. In many practical scenarios however, their applicability is still limited, mainly due to insufficient speed and efficiency. On the other hand, robots that use wheeled...
master thesis 2021
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Bouman, Foskien (author)
Ulnar collateral ligament (UCL) injuries are common in baseball pitching. The elbow external valgus torque is assumed to be indicative for the applied load on the UCL. This study investigated the maximum external valgus and extension torque and their corresponding load variability during a baseball pitch and the relationship between the...
master thesis 2021
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Wessendorp, Nikhil (author)
Micro air vehicles (MAVs) are increasingly being considered for aerial tasks such as delivery of goods and surveillance due to their lightweight, compact design and manoeuvrability. To safely and reliably carry out these tasks and navigate to its objective, especially in complex and cluttered environments, the MAV is also required to sense and...
master thesis 2021
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Nikolakopoulos, Konstantinos (author)
The concept of Urban Air Mobility (UAM) services was created mainly in response to traffic congestions. In this research we focus on UAM services such as those provided by Uber Elevate. We therefore present a framework to solve the Urban Air Mobility Problem with Time Windows (UAMP-TW) under dynamic demand, using an Adaptive Large Neighborhood...
master thesis 2021
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de Koning, Coert (author)
To achieve delay of laminar-to-turbulent transition of boundary layers, the application of acoustic metamaterial concepts is investigated. This is done analytically, numerically and experimentally by studying the interaction between a Helmholtz resonator and a TS wave. A Helmholtz resonator can serve as a meta-atom in a metamaterial. The desired...
master thesis 2021
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Copier, Rick (author)
Objective: this paper aims to evaluate the adhesive and frictional properties of the keratinised epithelium on the adhesive pads of tree frogs. Modeling methods: two modeling methods have been developed. One of these methods involves the implementation of discrete fibres in a relatively compliant material matrix while the other method involves...
master thesis 2021
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Kolk, Emma (author)
This project started with the following assignment: redesign the Adria Action caravan to fit in a circular economy and to have less CO2 emissions. However, the outcome of this project is not a redesign of a caravan but a framework for Adria to work towards (partial) circular As an example of the functioning of this framework, a redesign of the...
master thesis 2021
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