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Fonseca, R.M. (author), Stordahl, A. (author), Leeuwenburgh, O. (author), Van den Hof, P.M.J. (author), Jansen, J.D. (author)We consider robust ensemble-based multi-objective optimization using a hierarchical switching algorithm for combined long-term and short term water flooding optimization. We apply a modified formulation of the ensemble gradient which results in improved performance compared to earlier formulations. We also apply multi-dimensional scaling to...conference paper 2014
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Cusini, M. (author), Lukyanov, A. (author), Natvig, J. (author), Hajibeygi, H. (author)Unconventional Reservoir simulations involve several challenges not only arising from geological heterogeneities, but also from strong nonlinear physical coupling terms. All exiting upscaling and multiscale methods rely on a classical sequential formulation to treat the coupling between the nonlinear flow-transport equations. Unfortunately, the...conference paper 2014
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Langeveld, J.G. (author), Schilperoort, R.P.S. (author), Rombouts, P.M.M. (author), Benedetti, L. (author), Amerlinck, Y. (author), de Jonge, J. (author), Flameling, T. (author), Nopens, I. (author), Weijers, S. (author)Modelling of the integrated urban water system is a powerful tool to optimise wastewater system performance or to find cost-effective solutions for receiving water problems. One of the challenges of integrated modelling is the prediction of water quality at the inlet of a WWTP. Recent applications of water quality sensors have resulted in the...conference paper 2014
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Kuzniecow Bacchin, T. (author), Ashley, R. (author), Sijmons, D.F. (author), Zevenbergen, C. (author), Van Timmeren, A. (author)Cities exhibit unique and ever-changing spatial layouts formed by nested natural and socio-economic systems, sub-systems and components resulting from exchange, interaction, and interdependency processes. In this context, managing surface water in urban areas requires new approaches that integrate the knowledge about territorial patterns and...conference paper 2014
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Stanic, N. (author), Langeveld, J.G. (author), Clemens, F.H.L.R. (author)There is still a long way to go in understanding the behaviour of solids in sewers due to the difficulties in obtaining sufficient monitoring data to be able to understand the dominant processes. Laser profilers have shown to be capable of measuring the pipe interior, with a high accuracy, which is sufficient to be able to detect and quantify...conference paper 2014
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Post, J.A.B. (author), Pothof, I.W.M. (author), Ten Veldhuis, J.A.E. (author), Langeveld, J.G. (author), Clemens, F.H.L.R. (author)It remains unknown how lateral house connections affect the performance of the sewer system, since the assessment of serviceability is mainly based on the state of the main sewer system. Further insight into the contribution of lateral house connections to the overall level of service provided can aid to target investments to parts of the system...conference paper 2014
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Rombouts, P.M.M. (author), Tralli, A. (author), Langeveld, J.G. (author), Verhaart, F. (author), Clemens, F.H.L.R. (author)Being able to accurately determine weir discharges is of key importance in urban water management. The most common method is performing a level measurement and calculating the discharge using the standard weir equation. Since this equation is only valid in certain conditions, this can lead to large deviations from the actual discharge. In this...conference paper 2014
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Stanic, N. (author), Salet, T. (author), Langeveld, J.G. (author), Clemens, F.H.L.R. (author)The principle of structural behaviour of buried concrete pipes is fairly understood, except for how material deterioration affects structural behaviour and performance. Consequently, information on the structural behaviour of deteriorated sewer pipes will contribute to better understanding of the changes in status, which is essential for...conference paper 2014
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Ten Veldhuis, J.A.E. (author), Ochoa-Rodriguez, S. (author), Bruni, G. (author), Gires, A. (author), Van Assel, J. (author), Ichaba, A. (author), Kroll, S. (author), Wang, L.P. (author), Tchiguirinskaia, I. (author), Giangola Murzyn, A. (author), Richard, J. (author), Schertzer, D. (author), Willems, P. (author)Precipitation and catchment information needs to be available at high resolution to reliably predict hydrological response and potential flooding in urban catchments. While recent advances have been made in weather radar technology and availability of DTM for urban flood modelling, the question is whether these are sufficient to provide reliable...conference paper 2014
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Rohacs, D. (author), Voskuijl, M. (author), Siepenkotter, N. (author)The goal of this paper is to simulate and measure on a small-scaled model the landing characteristics related to take-off and landing (TOL) operations supported by a magnetic levitation (MAGLEV) system as ground-based power supply. The technical feasibility and the potential benefits of using ground-based power to assist TOLs is also presented,...conference paper 2014
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Nejadasl, F.K. (author), Linderbergh, R.C. (author)In this paper, we propose an automatic and sequential method for the registration of an image sequence of a road area without ignoring scene-induced motion. This method contributes to a larger work, aiming at vehicle tracking. A typical image sequence is recorded from a helicopter hovering above the freeway. The demand for automation is...journal article 2014
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Thomsen, A.F. (author)columnjournal article 2014
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Taouil, M. (author)3D stacking is an emerging technology promising many benefits such as low latency between stacked dies, reduced power consumption, high bandwidth communication, improved form factor and package volume density, heterogeneous integration, and low-cost manufacturing. However, it requires modification of existing methods and/or introduction of new...doctoral thesis 2014
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Den Dunnen, S. (author), Tuijthof, G.J.M. (author)Using water jets in orthopedic surgery to drill holes in bones can be beneficial due to the absence of thermal damage and the always sharp cut. To minimize operating time and the volume of water that is used, the efficiency (volume of removed bone per added volume of water) of the water jet should be maximized. The goal was to study the effect...journal article 2014
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van Boeijen, A.G.C. (author)Does the Circuit of Culture help design students to do a cultural study that is meaningful for their design project? Indeed, it provides a good view on the phenomenon culture, its complexity and how contemporary cultures can be studied, providing an overview and structure of the processes that influence cultural change. However, there are...conference paper 2014
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Terwel, K.C. (author), Mud, M. (author), Frijters, A. (author)Structural safety during construction is a main concern for the building industry. Collapses of temporary structures or incomplete permanent structures are a threat for the safety of persons. Based on data from Dutch Labour Inspectorate this study concluded that approximately 20% of the fatalities during construction are related to structural...conference paper 2014
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Lantsoght, E.O.L. (author), Van der Veen, C. (author), De Boer, A. (author)The shear problem is typically studied by testing small, heavily reinforced, slender beams subjected to concentrated loads, resulting in a beam shear failure, or by testing slab-column connections, resulting in a punching shear failure. Slabs subjected to concentrated loads close to supports, as occurring when truck loads are placed on slab...conference paper 2014
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Sciacchitano, A. (author)Particle Image Velocimetry (PIV) is a well-established technique for the measurement of the flow velocity in a two or three-dimensional domain. As in any other technique, PIV data is affected by measurement errors, defined as the difference between the measured velocity and its actual value, which is unknown. Aim of uncertainty quantification is...doctoral thesis 2014
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Terwel, K.C. (author), Jansen, S.J.T. (author)From forensic investigation it is known that many structural failures can be attributed to human errors and organizational factors. To provide project leaders with information on the current state of factors in the building process influencing structural safety, we developed a quick assessment tool. Logistic regression was used, based on data of...conference paper 2014
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- Filippidou, F. (author), Nieboer, N. (author) report 2014