Design of a composite guitar

Today’s acoustic guitars are getting increasingly expensive due to the worsening availability of the highest quality woods. Composites show great promise in replacing wood in acoustic guitars as they are lightweight, are not as sensitive to environmental effects and are much stronger. Current composite guitars however do not sound as good as...

The influence of the Sand Engine on the sediment transports and budgets of the Delfland coast: Analysis of bi-monthly high-resolution coastal profiles

The Sand Engine is a new innovation in coastal protection, a mega feeder nourishment. This pilot project was constructed in 2011 along the Delfland coast, which is historically prone to erosion. Since its construction, the Sand Engine is intensively being monitored to track the morphological development.<br/><br/>The objective of this thesis is...

Evaluating morphological patterns in atrial epicardial potentials: Clustering of time series potentials during atrial fibrillation

Introduction: Potentials measured at the epicardial surface contain information regarding the conductive properties of the atrial tissue. The current lack of morphological categorization during atrial fibrillation (AF) provokes the usage of unsupervised learning methods to evaluate time series electrograms across the atrial surface. Analysis of...

A Fourier-based approach for valuing bonds with embedded options: an analysis of convolution- and cosine-based approximation methods using jump-diffusion models and extended with stochastic interest rates

Due to their attractive characteristics, convertible and callable bonds became a more important class of fixed-income products within the financial market. Therefore, the need for fair and accurate pricing of convertible and callable bonds increases. Where the convertible option can be considered as a right for the bondholder, the callable...

Automated Regression Testing of Ajax Web Applications

There is a growing trend of moving desktop applications to the Web by using AJAX to create user-friendly and interactive interfaces. Well-known examples include GMail, Hotmail, Google Wave and office applications. One common way to provide assurance about the correctness of such complex and evolving systems is through regression testing....

A study into new concepts to simultaneously transport 4 TEU with a ship-to-shore container crane: during loading and unloading of a container ship

As a result of the need for higher productivity ship-to-shore container cranes, seven concepts are composed that can simultaneously transfer 4 Twenty Foot Equivalent Unit containers. All concept can be built on a standard ship-to-shore crane structure. These concepts are based on working principles found in (patent) literature. The concepts are...

Enabling the Chaos Networking Primitive on Bluetooth LE

Cyber-Physical Systems (CPS) integrate physical processes, sensors, and embedded computers to facilitate advanced control systems such as autonomous cars and smart cities. Communication in CPS has tight constraints regarding reliability and latency, while traditional networking primitives can not guarantee these constraints. We base our thesis...

Learning from successful strategies by analyzing influences and behavior

Loudspeakers as recording devices in public address systems

Public address (PA) systems are an integral part of every building. Their function as a safety and security system could benefit from adding recording capabilities. With such capabilities, people could be located during evacuation or announcements could be adjusted to room acoustics for better intelligibility. However, adding microphones to a PA...

Centre for Performing Arts, Amsterdam

Chicago Fish Barrier: The design of a fish free passage for vessels between the Mississippi and the Great Lakes

The United States of America – and more specific the state of Illinois – are dealing with a problem of Asian carps spreading from inward waterways to the Great Lakes. The Asian carp was originally brought to America to be used in study?s on agricultural pounds, but escaped after series of flooding. The Asian carp has no natural enemies in the...

Measuring and quantifying shunt currents in an alkaline water electrolyser shortstack

Hydrogen is used in a variety of industrial applications and can function as a green energy carrier, if produced sus-tainably. Alkaline water electrolysis holds great promise as a production method for green hydrogen, potentially playing an important role in the energy transition. The performance of this technology depends significantly on its...