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Jones, S.A. (author), Bos, Robert (author), Lastovka, Vaclav (author), Farajzadeh, R. (author), Riyami, Mohammed (author)
The efficiency of oil processes depends on the product of volumetric sweep and microscopic sweep. In oil recovery by steam injection the microscopic sweep is generally good; however, obtaining a good volumetric sweep can be challenging. This is caused by low density and viscosity of the injected steam combined with the reservoir heterogeneity...
conference paper 2022
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Bos, F.R.R.C. (author), Anil Meera, A. (author), Benders, D. (author), Wisse, M. (author)
The free energy principle from neuroscience provides a brain-inspired perception scheme through a data-driven model learning algorithm called Dynamic Expectation Maximization (DEM). This paper aims at introducing an exper-imental design to provide the first experimental confirmation of the usefulness of DEM as a state and input estimator for...
conference paper 2022
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Belis, Jan (author), Bos, Freek (author), Louter, P.C. (author)
We gradually emerge from two difficult years of the covid-19 pandemic raging through the world in waves of constantly changing intensities. The associated uncertainties really put the ‘challenging’ into Challenging Glass this time. Still, some of our peers are not able to join us in Ghent, and they will be sorely missed. Nevertheless, we are...
conference paper 2022
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Janssen, M.T.G. (author), Draganov, D.S. (author), Bos, Jordan (author), Farina, B. (author), Barnhoorn, A. (author), Poletto, F. (author), Van Otten, G. (author), Wolf, K.H.A.A. (author), Durucan, S. (author)
In the ACT Consortium funded project SUCCEED, researchers study the potential for monitoring the process of (re-)injecting produced and captured CO2 into the Hellisheiði geothermal field for the aid of enhancing geothermal deployment as well as permanently storing CO2 through mineralization. The Hellisheiði site provides an excellent opportunity...
conference paper 2022
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Bos, P. (author), Bakker, C.A. (author), Balkenende, R. (author), Sprecher, B. (author)
This design review evaluates the use of bio-based plastics in durable consumer products. The main question is: how does the use of bio-based plastics influence the product’s design, functionality, marketing & communication, and sustainability? Although higher material prices would lead one to expect that higher value applications would be...
conference paper 2022
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Figueiredo, Stefan C. (author), van Overmeir, A.L. (author), Nefs, Karsten (author), Schlangen, E. (author), Salet, Theo A. M. (author), Šavija, B. (author), Suiker, Akke S. J. (author), Bos, Freek P. (author)
Over the past few years, several studies have shown the potential of three-dimensional concrete printing (3DCP) for applications in building and civil engineering. However, only a few studies have compared the properties of the fresh printing material and the quality of the printed elements from different printing facilities. Variations in the...
conference paper 2020
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Khalilnezhad, H. (author), Popov, M. (author), Bos, Jorrit A. (author), de Jong, JPW (author), van der Sluis, L. (author)
Switching operations in power systems can produce significant overvoltages under specific circumstances. With the increasing application of underground cables in transmission systems, the statistical distribution of energization overvoltages is expected to change substantially due to the different electrical characteristics of cables and OHLs....
conference paper 2018
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Bos, R.A. (author), Nizamis, Kostas (author), Plettenburg, D.H. (author), Herder, J.L. (author)
People with Duchenne muscular dystrophy are currently in need of assistive robotics to improve their hand function and have a better quality of life. However, none of the available active hand orthoses is able to address to their specific needs. In this study, the use of hydraulic technology is proposed in the design of an active hand...
conference paper 2018
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Bos, R.A. (author), Plettenburg, D.H. (author), Herder, J.L. (author)
This study does not describe a success-story. Instead, it describes an exploratory process and the lessons learned while designing a compliant mechanism for a dynamic hand orthosis. Tools from engineering optimization and rapid prototyping techniques were used, with the goal to design a mechanism to compensate for hypertonic or contracted finger...
conference paper 2017
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Khalilnezhad, H. (author), Chen, S. (author), Popov, M. (author), Bos, J.A. (author), de Jong, J.P.W. (author), van der Sluis, L. (author)
This paper deals with the shunt compensation design of long 380kV-50Hz XLPE cables by simulating a double-circuit partially cabled connection with the transmission length of 80km in the Dutch transmission system. The proposed procedure for shunt compensation sizing is fully elaborated in this paper. Four sizing criteria are used to find the...
conference paper 2016
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Huisman, M. (author), Bos, Herbert (author), Brinkkemper, Sjaak (author), van Deursen, A. (author), Groote, Jan Friso (author), Lago, Patricia (author), van de Pol, Jaco (author), Visser, Eelco (author)
Software is widely used, and society increasingly depends on its reliability. However, software has become so complex and it evolves so quickly that we fail to keep it under control. Therefore, we propose intents: fundamental laws that capture a software systems’ intended behavior (resilient, secure, safe, sustainable, etc.). The realization...
conference paper 2016
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Bos, R. (author), Bierbooms, W.A.A.M. (author), Van Bussel, G.J.W. (author)
An important problem that arises during the design of wind turbines is estimating extreme loads with sufficient accuracy. This is especially difficult during iterative design phases when computational resources are scarce. Over the years, many methods have been proposed to extrapolate extreme load distributions from relatively short time series...
conference paper 2015
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Nguyen, M.Q. (author), Simöens, S. (author), Delache, A. (author), El Hajem, M. (author), Bos, W. (author), Poole, R. (author)
The comparison of the results of direct numerical simulations of isotropic turbulence of Newtonian and viscoelastic fluid, based on the FENE-P model, provide evidence that viscoelasticity modifies qualitatively the behavior of the smallest scales: we observe a k<sup>−6</sup> law in the far dissipation range of the energy spectrum and we show...
conference paper 2015
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Bos, W. (author), Kadoch, B. (author), Schneider, K. (author)
The angle between subsequent particle displacement increments is evaluated as a function of the timelag in isotropic turbulence. It is shown that the evolution of the average of this angle contains two well-defined power-laws, reflecting the multi-scale dynamics of high-Reynolds number turbulence.
conference paper 2015
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The directional change of a fluid particle can be measured by the angle between two subsequent particle displacement increments. At small values of the time-increment the so-defined angle is proportional to the curvature of the trajectory. At large values this coarse-grained curvature should be affected by the presence of solid no-slip walls...
conference paper 2015
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The temperature fluctuations generated by viscous dissipation in an isotropic turbulent flow are studied using direct numerical simulation. It is shown that the scaling of their variance with Reynolds number is at odds with predictions from recent investigations. The origin of the discrepancy is traced back to the anomalous scaling of the...
conference paper 2015
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Veerman, H. (author), Van Kleef, A. (author), Wokke, F. (author), Ober, O. (author), Tiberius, C.C.J.M. (author), Verhagen, A.A. (author), Bos, A. (author), Mieremet, A. (author)
The paper presents a short introduction to the mathematical theory of the EVT, the consecutive steps that are made in the software tool to address MI probability estimation and proof of range error distribution overbounding. Finally some early results obtained by GIMAT are presented.
conference paper 2012
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Herinckx, L.E. (author), Gutleb, T.L.M. (author), Van Nunen, R. (author), Van Rompuy, E. (author), Bos, D.A. (author), Dijkers, H.P.A. (author), De Wit, J. (author), Radfar, H. (author), Sahin, S.E. (author), Beelarts van Blokland, W.W.A. (author)
Formation flying is introduced as a new and innovative air transportation system for long-haul commercial flight. With this paper the operational feasibility of formation flying is addressed, both from a market demand and economic, as well as an air traffic control perspective. Preliminary results of a case study indicate that operating a newly...
conference paper 2011
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Dijkers, H.P.A. (author), Van Nunen, R. (author), Bos, D.A. (author), Gutleb, T.L.M. (author), Herinckx, L.E. (author), Radfar, H. (author), Van Rompuy, E. (author), Sayin, S.E. (author), De Wit, J. (author), Beelaerts van Blokland, W.W.A. (author)
The airline industry is under continuous pressure to reduce emissions and costs. This paper investigates the feasibility for commercial airlines to use formation flight to reduce emissions and fuel burn. To fly in formation, an aircraft needs to benefit from the wake vortices of the preceding aircraft. This requires a stable aerodynamic flow,...
conference paper 2011
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Bos, J.W. (J.Bos@royalhskoning.com) (author), Winde, S.C. (sc.winde@portofrotterdam.com) (author)
This paper describes an innovative approach towards quay wall renovation design. In the “RDM Kraanbaan 13” project in Rotterdam, significant cost savings were made and environmental impact was minimised, while on a tight schedule and with limited information about the structure and its future use. Essential were a very practical and flexible...
conference paper 2010
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