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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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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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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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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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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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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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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.T. (author), Jonkman, S.N. (author), Peters, D.J. (author)New ports are mostly constructed on low lying coastal areas or 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 ‘convention-al terminal’ requires large volumes of fill material often dredged from the sea, which is costly. The terminal yard of a ‘polder...conference paper 2013
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Verschuur, D.J. (author)Today, the problem of surface-related multiples, especially in shallow water, is not fully solved. Although surface-related multiple elimination (SRME) method has proved to be successful on a large number of data cases, the involved adaptive subtraction acts as a weak link in this methodology, where primaries can be distorted due to their...journal article 2013
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Lakerveld, R. (author), Benyahia, B. (author), Heider, P.L. (author), Zhang, H. (author), Braatz, R.D. (author), Barton, P.I. (author)The judicious use of buffering capacity is important in the development of future continuous pharmaceutical manufacturing processes. The potential benefits are investigated of using optimal-averaging level control for tanks that have buffering capacity for a section of a continuous pharmaceutical pilot plant involving two crystallizers, a...journal article 2013
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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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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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Oshyani, M.F. (author), Cats, O. (author)Bus travel times are subject to inherent and recurrent uncertainties. A real-time prediction scheme regarding how the transit system evolves will potentially facilitate more adaptive operations as well as more adaptive passengers’ decisions. This scheme should be tractable, sufficiently fast and reliable to be used in real time applications. For...conference paper 2014
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Van de Sande, S.A.H. (author), Uijttewaal, W.S.J. (author), Verheij, H.J. (author)Granular filters are used for protection against scour and erosion of base material. For a proper functioning it is necessary that at the interfaces between the filter structure, the subsoil and the water flowing above the filter structure no material will be transported. Different types of granular filters can be distinguished, this paper...conference paper 2014
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Maher, G.D. (author), Hulshoff, S.J. (author)The Variational Germano Identity [1, 2] is used to optimize the coefficients of residual-based subgrid-scale models that arise from the application of a Variational Multiscale Method [3, 4]. It is demonstrated that numerical iterative methods can be used to solve the Germano relations to obtain values for the parameters of subgrid-scale models...conference paper 2014
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Bischiniotis, K. (author), Kanning, W. (author), Jonkman, S.N. (author)This research focuses on the optimization of river dikes using probabilistic methods. Its aim is to develop a generic method that automatically estimates the failure probabilities of many river dike cross-sections and gives the one with the least cost, taking into account the boundary conditions and the requirements that are set by the user....conference paper 2014
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Chandrasekar, K. (author)Embedded systems have become an integral part of our life in the last few years in multifarious ways, be it in mobile phones, portable audio players, smart watches or even cars. Most embedded systems fall under the category of consumer electronics, such as televisions, mobile devices, and wearable electronics. With several players competing in...doctoral thesis 2014
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Kaelen, J.W.E.N. (author)The financial crisis and the introduction of low-budget companies have brought major changes to the air freight community. Competition became stronger and cost control became more important. This led to new ways of organizing aircraft Maintenance, Repair, Overhauls and Upgrades (MRO&U), which became performance oriented. For the triad of...doctoral thesis 2014
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Wang, Y. (author)Safe, fast, punctual, energy-efficient, and comfortable rail traffic systems are important for rail operators, passengers, and the environment. Due to the increasing energy prices and environmental concerns, the reduction of energy consumption has become one of the key objectives for railway systems. On the other hand, with the increase of...doctoral thesis 2014
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Van Dijk, H.A.J. (author), Damen, K. (author), Makkee, M. (author), Trapp, C. (author)In the Nuon/Vattenfall CO2 Catch-up project, a pre-combustion CO2 capture pilot plant was built and operated at the Buggenum IGCC power plant, the Netherlands. The pilot consist of sweet water-gas shift, physical CO2 absorption and CO2 compression. The technology performance was verified and validated models were obtained. This paper describes...journal article 2014