Influence of the slope angle on wave overtopping at rubble mound breakwaters

The objective of this research is to gather more information about a possible relation between the slope angle of a rubble mound breakwater and the wave overtopping at this breakwater. The following research question is covered in this thesis: What is the influence of the slope angle of rubble mound breakwaters on wave overtopping? To answer...

Effects of a WPE Dereverberation Algorithm on Speech Perception in Cochlear Implant Users

Introduction<br/>Reverberation causes a reduced speech perception in cochlear implant (CI) users. Therefore, a dereverberation method was proposed based on the weighted prediction error (WPE) algorithm with input from a deep neural network. The speech intelligibility for normal and hearing-aided listeners is improved by cancelling the late...

Prediction of Discharges from Polders to ‘Boezem’ Canals with a Random Forest and an LSTM Model: Improving Inputs of the Decision Support System of the Hoogheemraadschap van Delfland

In this research the possibilities of the application of machine learning models at ‘Hoogheemraadschap van Delfland’ are studied. A random forest (RF) and an LSTM model are used for the prediction of the sum of the discharge in the next 2, 8 and 12 hours from the polders to the boezem canals. This research has showed the potential of machine...

Form Finding for a Submerged Floating Tunnel: The Clever Cross-section for Coastal Crossings

Although the concept of a submerged floating tunnel (SFT) originates from the early 1900s, the cross-section is always assumed to be circular or rectangular. In this research, it is investigated whether this assumption is valid. In order to find the optimal cross-section, the optimization process is split into two targets. The first targets aims...

Re-africanised: A post-developmentalist approach to infrastructure and public space in Dar es Salaam, Tanzania

Many cities in Africa are confronted with the challenges of a rapidly expanding population, urban geography and the service provision it requires. Also Dar es Salaam, Tanzania’s main economic and cultural city, is with 6 million inhabitants and a project population of 10 million by 2030, classified as one of the fasted growing cities in Africa....

Design of an Aberration Correction System for a Deployable Space Telescope

Launch costs for high-resolution space telescopes for Earth observation can be reduced when the telescope mirrors are made deployable. However, such a system is subject to optical aberrations that decreases image quality. To counter these aberrations, an Aberration Correction System (ACS) is proposed that uses a deformable mirror (DM) which is...