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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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Lendering, K. (author), Jonkman, S.N. (author), Peters, D.J. (author)New ports are mostly constructed on low lying coastal areas or in shallow coastal waters. The quay wall and terminal yard are raised to a level well above mean sea level to assure flood safety. The resulting ‘conventional terminal’ requires large volumes of good quality fill material often dredged from the sea, which is costly. The alternative...conference paper 2013
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Sparing, D. (author), Goverde, R.M.P. (author), Hansen, I.A. (author)We present an optimization model which is able to generate feasible periodic timetables for networks given the line structure and the requested line frequencies, taking into account infrastructure constraints and train overtake locations. As the model uses the minimum cycle time as the objective function, the stability of the timetable is also...conference paper 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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Van Nooyen, R.R.P. (author), Kolechkina, A.G. (author)In applied hydrology the question of the probability of exceeding a certain value occurs regularly. Often it is in a context where extrapolation from a relatively short time series is needed. It is well known that in its simplest form extreme value theory applies to independent identically distributed random variables. It is also well known that...conference paper 2012
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Fennis, S.A.A.M. (author), Walraven, J.C. (author)The annual production of Portland cement, estimated at 3.4 billion tons in 2011, is responsible for about 7% of the total worldwide CO2-emission. To reduce this environmental impact it is important to use innovative technologies for the design of concrete structures and mixtures. In this paper, it is shown how particle packing technology can be...journal article 2012
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Wiebenga, J.H. (author), Van den Boorgaard, A.H. (author), Klaseboer, G. (author)The coupling of finite element simulations to mathematical optimization techniques has contributed significantly to product improvements and cost reductions in the metal forming industries. The next challenge is to bridge the gap between deterministic optimization techniques and the industrial need for robustness. This paper introduces a...journal article 2012
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Hamarat, C. (author), Kwakkel, J.H. (author), Pruyt, E. (author)Uncertainty manifests itself in almost every aspect of decision making. Adaptive and flexible policy design becomes crucial under uncertainty. An adaptive policy is designed to be flexible and can be adapted over time to changing circumstances and unforeseeable surprises. A crucial part of an adaptive policy is the monitoring system and...conference paper 2012
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Delinchant, B. (author), Lahaye, D. (author), Wurtz, F. (author), Coulomb, J.L. (author)This paper deals with the Space Mapping optimization algorithms in general and with the Manifold Mapping technique in particular. The idea of such algorithms is to optimize a model with a minimum number of each objective function evaluations using a less accurate but faster model. In this optimization procedure, fine and coarse models interact...report 2012
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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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Vermeer, K.A. (author), Lo, B. (author), Zhou, Q. (author), Vos, F.M. (author), Vossepoel, A.M. (author), Lemij, H.G. (author)Monitoring glaucoma patients and ensuring optimal treatment requires accurate and precise detection of progression. Many glaucomatous progression detection strategies may be formulated for Scanning Laser Polarimetry (SLP) data of the local nerve fiber thickness. In this paper, several strategies, all based on repeated GDx VCC SLP measurements,...journal article 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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Huibregtse, O.L. (author), Bliemer, M.C.J. (author), Hoogendoorn, S.P. (author)In this paper, approximations of optimal evacuation instructions are analyzed. The instructions, consisting of a departure time, a destination, and a route, are for the evacuation by car of a population of a region threatened by a hazard. An optimization method presented in earlier research is applied on three different hazard scenarios...journal article 2010
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Yan, C. (author), Bergsma, O. (author), Koussios, S. (author), Zu, L. (author), Beukers, A. (author)The sandwich composites fuselages appear to be a promising choice for the future aircrafts because of their structural efficiency and functional integration advantages. However, the design of sandwich composites is more complex than other structures because of many involved variables. In this paper, the fuselage is designed as a sandwich...journal article 2010
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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