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- Karimi Nejadasl, F. (author), Gorte, B.G.H. (author), Hoogendoorn, S.P. (author), Snellen, M. (author) conference paper 2008
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- Marinescu, O. (author), Bociort, F. (author) journal article 2008
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Haasnoot, M. (author)Met als bijlage: A0 postermaster thesis 2008
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Model-based lifecycle optimization of well locations and production settings in petroleum reservoirsZandvliet, 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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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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- Marinescu, O. (author), Bociort, F. (author) journal article 2008
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- Marinescu, O. (author), Bociort, F. (author) journal article 2008
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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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- Wang, H. (author), Van Mieghem, P. (author) conference paper 2008
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Zhu, J. (author), Zhang, W. (author), Bassir, D.H. (author)The aim of this paper is to enhance the validity of existing evolutionary topology optimization procedures. As this hard-killing scheme related to the element sensitivity values may lead to incorrect predictions of inefficient elements to be removed and the value of the objective function becomes sharply deteriorated during the iterations, a...journal article 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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Snellen, M. (author), Siemes, K. (author), Simons, D.G. (author)Nowadays extensive use is made of multibeam echosounders (MBES) for mapping the bathymetry of sea- and river-floors. The MBES is capable of covering large areas in limited time by emitting an acoustic pulse along a wide swathe perpendicular to the sailing direction. The angle and the corresponding two-way travel-time of the received signals are...conference paper 2009
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Simons, D.G. (author), Snellen, M. (author), Siemes, K. (author)Seafloor characterization is important in many fields including hydrography, marine geology, coastal engineering and habitat mapping. The advantage of non-invasive acoustic methods for sediment characterization over conventional bottom grabbing is the nearly continuous versus sparse sensing and the enormous reduction in survey time and costs....conference paper 2009
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Arnold, M. (author), Negenborn, R.R. (author), Andersson, G. (author), De Schutter, B. (author)The optimal operation of an integrated electricity and natural gas infrastructure is investigated. The couplings between the electricity system and the gas system are modeled by so-called energy hubs, which represent the interface between the loads on the one hand and the transmission infrastructures on the other. To increase reliability and...conference paper 2009
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Van den Hof, P.M.J. (author), Jansen, J.D. (author), Van Essen, G.M. (author), Bosgra, O.H. (author)Due to urgent needs to increase efficiency in oil recovery from subsurface reservoirs new technology is developed that allows more detailed sensing and actuation of multiphase flow properties in oil reservoirs. One of the examples is the controlled injection of water through injection wells with the purpose to displace the oil in an appropriate...conference paper 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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Urbach, H.P. (author), Pereira, S.F. (author), Broer, D.J. (author)We determine field distributions in the pupil of a high NA lens, that give, for a given power incident on the lens, the maximum electric field amplitude in focus in a specific direction. We consider in particular the cases of maximum longitudinal and maximum transverse components. The distribution of the maximum longitudinal component in the...conference paper 2009
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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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Huibregtse, O.L. (author), Hoogendoorn, S.P. (author), Pel, A.J. (author), Bliemer, M.C.J. (author)A method is described to develop a set of optimal instructions to evacuate by car the population of a region threatened by a hazard. By giving these instructions to the evacuees, traffic conditions and therefore the evacuation efficiency can be optimized. The instructions, containing a departure time, a destination, and a route, are created...conference paper 2010
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Zuurbier, F.S. (author), Hegyi, A. (author), Hoogendoorn, S.P. (author)Marginal costs in traffic networks are the extra costs incurred to the system as the result of extra traffic. Marginal costs are required frequently e.g. when considering system optimal traffic assignment or tolling problems. When explicitly considering spillback in a traffic flow model, one can use a numerical derivative or resort to heuristics...conference paper 2010