Idealised tidal dynamics in an estuary with a horizontally movable time dependent barrier: A contribution to one of the possible solutions of the sludge problem in the Eems estuary

In this thesis the hydrodynamic behaviour of an idealised relatively short tidal estuary is studied using a cross-sectionally averaged model, i.e. a one dimensional model. The geometry of the estuary is simplified and only the hydrodynamic processes are considered. This model is used to gain insight in the behaviour of currents and water levels...

Visualising Conformational Changes in HSP90 Protein using Plasmonic Nanoapertures

In this thesis, we demonstrate optical trapping of HSP90 proteins in plasmonic nanoapertures to study the HSP90 conformational change. This technique is label-free and non-destructive. The resonance of the bow tie shaped plasmonic nanoaperture is used to create a very strong electric field gradient force able to trap proteins. The resonance...

Posits als vervanging van floating-points: Een vergelijking van Unum Type III Posits met IEEE 754 Floating Points met Mathematica en Python

In dit verslag worden de resultaten van literatuuronderzoek naar de voor- en<br/>nadelen van floats en posits gepresenteerd. Naar aanleiding van de resultaten is de hypothese opgesteld dat posits een goede "drop-in replacement" zouden zijn voor floats vanwege het grotere bereik, de afwezigheid van overflow en underflow en omdat ze enkel één NaN...

Ranking items: Is solving a seriation problem a good alternative for existing methods?

In this dissertation we look at the seriation problem and the applications of this problem. Given a set of items, we try to find an ordering based on the similarity between the items. We start by explaining the mathematical theory behind the seriation problem. Then we describe a couple of different methods that can be used to find a solution for...

On the Rain-Wind Induced Vibrations of a Mass-Spring System

In this report, the rain-wind induced vibrations of cables are studied. This is done by modeling the cable cross-section as a mass-spring system with two time-varying masses. Thereafter, the solution of this model is approximated using a multiple timescale perturbation method. Lastly, for some choices<br/>of the time-varying masses the...