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Nane, R. (author)
Reconfigurable Architectures (RA) have been gaining popularity rapidly in the last decade for two reasons. First, processor clock frequencies reached threshold values past which power dissipation becomes a very difficult problem to solve. As a consequence, alternatives were sought to keep improving the system performance. Second, because Field...
doctoral thesis 2014
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Khalate, A.A. (author)
In recent years, inkjet technology has emerged as a promising manufacturing tool. This technology has gained its popularity mainly due to the facts that it can handle diverse materials and it is a non-contact and additive process. Moreover, the inkjet technology offers low operational costs, easy scalability, digital control and low material...
doctoral thesis 2013
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Zhang, M. (author)
“The goal of the European Transport Policy is to establish a sustainable transport system that meets society’s economic, social and environmental needs…” (ECE, 2009). This statement indicates the challenges that the European transport policy makers are faced with when facilitating an increasing freight transport demand with limited transport...
doctoral thesis 2013
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Ramirez-Elizondo, L.M. (author)
The world’s increasing energy demand and growing environmental concerns have motivated scientists to develop new technologies and methods to make better use of the remaining resources of our planet. The main objective of this dissertation is to develop a scheduling and control tool at the district level for small-scale systems with multiple...
doctoral thesis 2013
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Barreto Cordero, W.J. (author)
Flooding in urbanized areas has become a very important issue around the world. The level of service (or performance) of urban drainage systems (UDS) degrades in time for a number of reasons. In order to maintain an acceptable performance of UDS, early rehabilitation plans must be developed and implemented. In developing countries the situation...
doctoral thesis 2012
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Straathof, M.H. (author)
This thesis introduces a new parameterization technique based on the Class-Shape-Transformation (CST) method. The new technique consists of an extension to the CST method in the form of a refinement function based on B-splines. This Class-Shape-Refinement-Transformation (CSRT) method has the same advantages as the original CST method, while also...
doctoral thesis 2012
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Schlesinger, A. (author)
The enhancement of speech intelligibility in noise is still the main subject in hearing aid research. Based on the advanced results obtained with the hearing glasses, in the present research the speech intelligibility is even further improved by the application of binaural post-filters. The functionalities of these filters are related to the...
doctoral thesis 2012
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Siek, M.B.L.A. (author)
Accurate predictions of storm surge are of importance in many coastal areas. This book focuses on data-driven modelling using methods of nonlinear dynamics and chaos theory for predicting storm surges. A number of new enhancements are presented: phase space dimensionality reduction, incomplete time series, phase error correction, finding true...
doctoral thesis 2011
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Weijs, S.V. (author)
Operational management of water resources needs predictions of future behavior of water systems, to anticipate shortage or excess of water in a timely manner. Because the natural systems that are part of the hydrological cycle are complex, the predictions inevitably are subject to considerable uncertainty. Still, definitive decisions about e.g....
doctoral thesis 2011
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Janssen, O.T.A. (author)
In the next decade, several applications of nanotechnology will change our lives. LED lighting is about to replace the common light bulb. The main advantages are its energy efficiency and long lifetime. LEDs can be much more efficient, when part of the emitted light that is currently trapped in the device, could be radiated out of the device....
doctoral thesis 2010
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De Weerdt, E. (author)
The field of global optimization has been an active one for many years. By far the most applied methods are gradient and evolutionary based algorithms. The most appearing drawback of those types of methods is that one cannot guarantee that the global solution is found within finite time. Moreover, if the global solution is found (by chance), the...
doctoral thesis 2010
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Van Kampen, E. (author)
Optimization is an important element in aerospace related research. It is encountered for example in trajectory optimization problems, such as: satellite formation flying, spacecraft re-entry optimization and airport approach and departure optimization; in control optimization, for example in adaptive control algorithms; and in system...
doctoral thesis 2010
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De Wit, A.J. (author)
Complex systems, such as those encountered in aerospace engineering, can typically be considered as a hierarchy of individual coupled elements. This hierarchy is reflected in the analysis techniques that are used to analyze the physcial characteristics of the system. Consequently, a hierarchy of coupled models is to be used, accounting for...
doctoral thesis 2009
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Wang, H. (author)
Our society depends more strongly than ever on large networks such as transportation networks, the Internet and power grids. Engineers are confronted with fundamental questions such as “how to evaluate the robustness of networks for a given service?”, “how to design a robust network?”, because networks always affect the functioning of a service....
doctoral thesis 2009
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Van Turnhout, M. (author)
A major problem in optical system design is that the optical merit function landscape is usually very complicated, especially for complex design problems where many minima are present. Finding good new local minima is then a difficult task. We show however that a certain degree of order is present in the optical design space, which is best...
doctoral thesis 2009
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Fenicia, F. (author)
This thesis describes an approach to model development based on the concept of iterative model improvement, which is a process where by trial and error different hypotheses of catchment behaviour are progressively tested, and the understanding of the system proceeds through a combined process of modelling and experimenting. We show a number of...
doctoral thesis 2008
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Abrasive Waterjet (AWJ) Machining is a recent non-traditional machining process. This technology is widely used in industry for cutting difficult-to-machine-materials, milling slots, polishing hard materials etc. AWJ machining has many advantages, e.g. it can cut net-shape parts, no heat is generated during the cutting process, it is...
doctoral thesis 2008
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Zandvliet, M.J. (author)
The coming years there is a need to increase production from petroleum reservoirs, and there is an enormous potential to do so by increasing the recovery factor. This is possible by making better use of recent technological developments, such as horizontal wells, downhole valves and sensors. However, actually making better use of these improved...
doctoral thesis 2008
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van der Helm, A.W.C. (author)
Drinking water treatment plants automation becomes more sophisticated, more on-line monitoring systems become available and integration of modeling environments with control systems becomes easier. This gives possibilities for model-based optimization. In operation of drinking water treatment plants, the processes are usually optimized...
doctoral thesis 2007
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Hol, C.W.J. (author)
In many application areas of mechanical servo-systems the high demands on the performance often imply a tightly tuned feedback controller, that takes dynamical interaction into account. Model-based H-optimal controller synthesis is a well-suited technique for this purpose. However, the state-of-the-art synthesis approach yields controllers with...
doctoral thesis 2006
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