An Analysis of Trailing Suction Hopper Dredger Dredge Plume Development and the Use of Suspended Sediment Source Terms: A numerical simulation study

Dredging is performed for various reasons, including port development, coastal defense and land reclamation. The economic and social importance of such projects is widely acknowledged, but there are growing concerns about the possible environmental impact of the dredge plumes that form as a temporary by-product of these activities. Suspended...

Gardens of Responsibility

The Dutch have complicated relationship with nature, since the land is in a constant battle against flooding. Being successful at conquering nature also showed in the increased urbanisation and management of remaining landscape. Due to globalisation, the impact of daily activities on nature remain distant. The world now has entered a so-called ...

Sample-efficient multi-agent reinforcement learning using learned world models

Multi-agent robotic systems could benefit from reinforcement learning algorithms that are able to learn behaviours in a small number trials, a property known as sample efficiency. This research investigates the use of learned world models to create more sample-efficient algorithms. We present a novel multi-agent model-based reinforcement...

A sensitivity study on the aerodynamic performance of a wingtip-mounted tractor propeller-wing system

Wingtip-mounted propellers have the ability to enhance the propeller-wing system performance. For inboard-up rotating tractor propellers, the swirl in the propeller slipstream can be used on the wing to reduce the influence of the wingtip vortex, decreasing drag. Furthermore, lift is enhanced by increasing dynamic pressure and angle of attack...

Optimising the Design of a Medical Device Intended for Use in Low- and Middle Income Countries

Introduction: Smart Medics Company is a startup from the Delft University of Technology, looking to bring an affordable Video laryngoscope (VL) into hospitals in low-resource regions. This research aims to seek the best suitable transparent material to act as a lens, sealing off a compartment containing an endoscope, as well as, bring forth a...

Towards BIM-based automation of the vertical load calculation

The work processes of structural engineers have been changing over the last decades. Digitalisation and automation play an important role in this change. One of the major developments in this context has been the introduction of Building Information Modelling (BIM). In a BIM model the geometry of the actual building is represented. To this...

Multihop Transmission for Time Correlation in Energy Harvesting Networks

We consider a system of IoT nodes powered completely by energy harvesting.This work focuses on achieving the time correlation of data measurements ina network of energy harvesting sensor nodes. Time correlation is achieved byhopping a message through the whole network. This message wakes up all thenodes and lets them perform a measurement....

(Up)lifting the ground level: Recreational green rooftops as integrated part of the cities green infrastructure

Many large cities in the world have an unhealthy stressful urban climate: air pollution, lack of water retention, lack of biodiversity, urban heat island effects, etc. There is also a lack of space in the urban environment and predictions are that urbanisation and densification will increase (United Nations, 2007). Urban green is regarded as big...

Encouraging generosity: Turning everyday products into pro-social helping tools

Pro-social helping activities are activities that are intended by the helper to mainly benefit the receiver. Research from WeHelpen showed that offering passive help through asking “if there is anything I can do, please let me know” does not often result in the helping behavior. Asking for help is difficult because it does not fit in the idea of...

Designing an innovative brake system: Hitch Connection Unit

Understanding the morphological development of the Walsoorden sediment disposals

The objective of this study is to identify the mechanisms that drive the morphodynamic behaviour of the sediment disposals in the subtidal zone north of the intertidal shoal Walsoorden. The morphological development of the sediment in the subtidal zone near this shoal has been monitored and measured. The gathered bathymetric data show that one...

Designing Haptic Graphics for Mathematics: Towards Accessible Math Education for Blind Students

Currently 75% of children with a visual impairment attend regular schools. Schools are digitizing, which poses both advantages as well as threads to the education of students who are blind. With help of VoiceOver or refreshable braille displays, digital textual information has become accessible to the student, however, there is no solution...

Fieldwork Coastal Engineering 2014

This report is the final part of the course CIE5318 Fieldwork Hydraulic Engineering at the TU Delft. In this course a group of international students from the TU Delft a and the Varna Free University visit the coast of the Black Sea. During their weeks visit they do field research in Varna, Bulgaria and visit the harbor of Constanta, Romania....

Stromingsgedrag in een industrieel T-stuk

In dit onderzoek is het stromingsgedrag van een éénfase-stroming in een horizontaal T-stuk met een verticale branch onderzocht. De experimenten zijn uitgevoerd in een opstelling van industriële schaal (diameter inlet en run 23 cm, diameter branch 10 cm). Dit onderzoek heeft zich toegespitst op éénfase-stroming zodat er, in een volgend onderzoek,...

Modelling of the Eurofix Data-Link

After an introduction of the Eurofix concept for transmission of Differential GPS data via Loran-C signals by delay modulation, the modelling of this principle is discussed. The results of the model are compared with real measurements. The results of this comparison will be analysed and some final remarks about the quality of the data link will...

Bodemsanering in de stadsvernieuwing: De mogelijkheden van 'ongefaseerd bodemonderzoek' om vertragingen in de stadsvernieuwing tegen te gaan

In de verpauperde gebieden van de steden is een vernieuwingsproces in gang gezet om de sociaal-ekonomische verloedering van het woon - en leefklimaat tegen te gaan. In het kader van deze zogenaamde stadsvernieuwing worden vele woningen gerenoveerd of als dit tecnisch of financieel niet meer haalbaar is, gesloopt en vervangen door nieuwbouw....

Ro-Ro verbinding Vuurland met het vasteland van Argentinië

In het vooronderzoek is voorbereidend werk gedaan voor het ontwerp van de Ro-Ro-haven. In het voor u liggende rapport staat beschreven hoe dit ontwerp verder is uitgewerkt. In het eerste hoofdstuk wordt een inventarisatie gemaakt welk type schip er voor dit specifieke Ro-Ro-vervoer ingezet moet worden. Na de te vervoeren lading in hoofdstuk 3 te...

A synchro PC interface for the MLS Integrated Approach System

At the moment a lot of research is done to develop a new approach and landing system; the MLS Integrated Approach System (MIAS). This system integrates the Microwave Landing System (MLS) with the Differential Global Positioning System (DGPS). It’s purpose is to increase redundancy and subsequently the safty and maybe to replace the expensive...