Numerical Investigation of Floating Wind Turbine Wake Interactions Using LES-AL Technique

Large scale wind farms consisting with floating offshore wind turbines (FOWTs) will be a solution for offshore wind energy industry to access more wind resources. However, wake structures and wake interactions of FOWTs subject to motions are still not yet been fully understand, especially when they are under turbulent inflow conditions with...

Revealing the secret to successful virtual meetings: How personality traits impact conversational involvement in a group

With the rise in popularity of online conferencing platforms such as Zoom and Teams, there is an increasing need to understand the dynamics of virtual meetings to enhance productivity. One key aspect that can contribute to productive online meetings is conversational involvement. Personality traits influence the behaviour of participants within...

CityREST: CityJSON in A Database + RESTful Access

With the increasing demand for 3D city models in various applications, providing efficient access to 3D city models on the web has become very important and valuable. However, there is a lack of web services in which users can directly and effectively access the city objects contained in the 3D city models on the web. Another problem with web...

Large-scale and local morphological impact along the northern side of DELTA 21

This report investigates the long-term morphological changes caused by the DELTA 21 project at the northern side, including the large scale morphological development with Delft3D model and at local scale the coastline deformation with UNIBEST-CL model. The necessity of the layout design improvement of DELTA 21 is analyzed by comparing different...

Development of an analytical model for a special design asynchronous motor

Electrical motors have been widely used in various fields for hundreds of years. The asynchronous motor is always an interesting topic due to its advantage of the simple structure, robustness, low maintenance cost and long lifetime. In this research, a special structure rotor is used instead of the classical squirrel cage rotor. To understand...

Optimization of Composite Structures for Crashworthiness

Structural optimization for crashworthiness in composite structures has become an important topic of research in aerospace, attributable to its proven benefits to the occupants' safety in an aircraft during a crash event. This thesis provides a comprehensive investigation on LS-DYNA modeling and design optimization of composite square tubes for...

A viral spreading model in signed networks

In a business network, a company may be encouraged to utilise a new technique when either its cooperators or its competitors have made their adoption. Nevertheless, its willingness can be reduced as more of its competitors start applying the new technique. Inspired by the this scenario, in this thesis we proposed a viral spreading model in...

LED-based photocatalytic reactor design

As a promising technology, photocatalysis shows its unique advantages and potential in many disciplines, from hydrogen production, indoor and outdoor air purification, remediation of non-biodegradable molecular in the factory, to the organic synthesis with high selectivity. In recent years, photocatalytic semiconductor process has shown a high...

Automated Expansion of Statistical Shape Model Training Set for Femur

Active Shape Model (ASM) uses Statistical Shape Model (SSM) to fit the manually labeled landmark point in Magnetic Resonance Image (MRI) scan and segment the femur from the MRI scan. The SSM is trained from a training set containing 275 complete femur meshes. In general, with more femur meshes in the training set, there would be more shape...

Network Lifetime Analysis of Data Collection Protocols

When a sensor network is deployed, we fundamentally care about three main outcomes: to obtain as much data as possible (high delivery rate), to obtain data as fast as possible (low latency), and to obtain data for as long as possible (long lifetime). This last metric, called network lifetime, is of great importance and has been widely...

Grey-Box System Identification of a Quadrotor Unmanned Aerial Vehicle

Analyzing emotion on Twitter for user modeling

With the development of networks, social platforms play an indispensable role in people’s daily lives. As the most popular microblogging platform, Twitter has a vast amount of information available in the form of tweets shared by millions of users. Since this data stream is constantly growing, it is difficult to extract relevant information for...

Designing Value Chain Optimization Solution with a Realtime Streaming Calendaring Service

This master thesis shows the process of designing business models for value chain optimization with the realtime streaming calendaring service platform, and the process of designing a business model generation toolkit. It was done for the startup company Calendar42, located at YES!Delft. During the graduation project, 4 business models were...

The Heston model with term structure

The purpose of this project is to extend the Heston model in order to incorporate the term structure (TS) of the implied volatility surface. This includes implementing a TS within the Heston model and its calibration to a set of market instruments. The TS Heston model with piecewise constant parameters is implemented to match the TS and the COS...

45nm Extraction and verification flow with SPACE

As CMOS technology progresses to the 45nm generation and below, lots of changes are developed on material, process and structure, such as, metal gates, high-k gate dielectrics, increased mobility, low-k wiring dielectrics, and multiple layers of circuitry (3D) . These new changes provide performance improvements and economic benefit, however...