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Schrama, E.J.O. (author), Wouters, B. (author), Rietbroek, R. (author)
The purpose of this paper is to assess the mass changes of the Greenland Ice Sheet (GrIS), Ice Sheets over Antarctica, and Land glaciers and Ice Caps with a global mascon method that yields monthly mass variations at 10,242 mascons. Input for this method are level 2 data from the Gravity Recovery and Climate Experiment (GRACE) system collected...
journal article 2014
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Boogaard, F.C. (author), Lucke, T. (author), Van de Giesen, N.C. (author), Van de Ven, F.H.M. (author)
Permeable pavements are a type of sustainable urban drainage system (SUDS) technique that are used around the world to infiltrate and treat urban stormwater runoff and to minimize runoff volumes. Urban stormwater runoff contains significant concentrations of suspended sediments that can cause clogging and reduce the infiltration capacity and...
journal article 2014
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Janssen, D.M. (author), Sanders, A.P. (author), Guldemond, N.A. (author), Hermus, J. (author), Walenkamp, G.H. (author), Van Rhijn, L.W. (author)
Background Hallux valgus deformity is a common musculoskeletal foot disorder with a prevalence of 3.5% in adolescents to 35.7% in adults aged over 65 years. Radiographic measurements of hallux valgus angles (HVA) are considered to be the most reproducible and accurate assessment of HVA. However, in European countries, many podiatrists do not...
journal article 2014
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Bonaccorsi, S. (author), Ottaviano, S. (author), De Pellegrini, F. (author), Socievole, A. (author), Van Mieghem, P.F.A. (author)
We consider a model for the diffusion of epidemics in a population that is partitioned into local communities. In particular, assuming a mean-field approximation, we analyze a continuous-time susceptible-infected-susceptible (SIS) model that has appeared recently in the literature. The probability by which an individual infects individuals in...
journal article 2014
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Bochev, P. (author), Gerritsma, M.I. (author)
We present a spectral mimetic least-squares method which is fully conservative and decouples the primal and dual variables.
conference paper 2014
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Papachristos, G. (author)
This paper looks at how competition, regulation and technology coevolve in Formula 1 and how teams adapt. It does so at two levels: (i) the system level viewing Formula 1 competition as a whole and (ii) the organizational level, viewing team adaptation and car development level. The path this coevolutionary trajectory competition has taken in...
conference paper 2014
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Chen, L. (author), Maher, G.D. (author), Hulshoff, S.J. (author)
Parameters for SGS models within the variational multiscale method for the Stokes equations are determined using two different methods. Both linear and nonlinear models are considered. Firstly, optimal parameters are found using a goal-oriented model-constrained technique minimising L2 error. Secondly, parameters are obtained using the...
conference paper 2014
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Van der Velden, W.C.P. (author), Van Zuijlen, A.H. (author), De Jong, A.T. (author), Bijl, H. (author)
A Large Eddy Simulation (LES) with four different closure models are analyzed in OpenFOAM, an open source Computional Fluid Dynamics (CFD) package and validated for the determination of the streamwise and spanwise coherence length of the pressure field below a turbulent boundary layer at low Reynolds numbers. Matching results are found for outer...
conference paper 2014
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Eker, S. (author), Djong, J. (author), Leston, D. (author)
Rabies is a viral fatal disease transmitted to humans mainly from dogs. Human deaths due to rabies have been increasing in recent years, especially in Africa and Asia where socioeconomic factors play an important role in the revival of the epidemic. In the current situation, it is unknown how the epidemic will evolve and which policies can...
conference paper 2014
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Peters, H.J. (author), Tiso, P. (author), Goosen, J.F.L. (author), Van Keulen, A. (author)
Several Flapping Wing Micro Air Vehicle (FWMAV) designs exploit structural resonance to decrease power consumption. Practical use of most resonating structures requires temporary modifications to the resonance mode (i.e., the eigensolution). This paper presents a systematic design approach to modify non-proportionally damped resonance modes in a...
conference paper 2014
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Schot, J.J.A. (author), Pennings, P.C. (author), Pourquie, M.J.B.M. (author), Van Terwisga, T.J.C. (author)
In this paper modelling assumptions for the prediction of tip vortex flow and vortex cavitation with the RANS equations and homogeneous fluid approach in Open-FOAM are presented. The effects of the changes in the turbulence model are investigated and the results are compared with PIV measurements.
conference paper 2014
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Rose, A.C. (author)
This report presents a first look study at the field of System Dynamics. The objective of the study is to perform a model-based policy analysis in order to investigate the future advancement of the System Dynamics field. The aim of this investigation is to determine what this advancement should look like and how that can be accomplished. Several...
conference paper 2014
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Van Daalen, C. (author), Schaffernicht, M. (author), Mayer, I. (author)
This paper deals with the relationship between serious games and system dynamics. Games have been used in SD since the beginning. However, the field of serious gaming also has its own development. The purpose of this contribution is to provide a broad overview of the combination of serious gaming and SD and discuss the state of the art and...
conference paper 2014
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Musivand Arzanfudi, M. (author), Al-Khoury, R.I.N. (author), Sluys, L.J. (author)
conference paper 2014
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Wu, L. (author), Tiso, P. (author)
Model order reduction techniques are widely applied in the floating frame of reference. The use of linear vibration modes, however, is not applicable when the elastic deformations become finite. In this paper, the non-linear elastic formulation, where the higher-order terms will be included in the strain energy expression to consider the bending...
conference paper 2014
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Eker, S. (author), Van Daalen, C. (author)
Bio-methane is a renewable gas option that can be injected to the natural gas grids to increase the sustainability of the energy system and to deal with natural gas supply problems. However, being based on several factors such as resource availability, competition between bio-methane and electricity sectors for biogas and biomass supply, demand,...
conference paper 2014
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Hesan, R. (author), Ghorbani, A. (author), Dignum, M.V. (author)
In system dynamics modeling, differential equations have been used as the basic mathematical operator. Using difference equation to build system dynamics models instead of differential equation, can be insightful for studying small organizations or systems with micro behavior. In this paper we explain how we can use difference equations to build...
conference paper 2014
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Blom, D.S. (author), Van Zuylen, A.H. (author), Bijl, H. (author)
Strongly coupled partitioned fluid-structure interaction problems require multiple coupling iterations per time step. The fluid domain and the structure domain are solved multiple times in each time step such that the kinematic and dynamic interface conditions on the fluid-structure interface are satisfied. Quasi-Newton methods have been...
conference paper 2014
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Van Staveren, R. (author), Jaxa-Rozen, M. (author)
Mizoram, a state in the Northeast of India, is affected every half-century by cycles of crop damages and famines. These events - locally known as Mautam - have been hypothesized to follow the periodic flowering of bamboo forests and subsequent rodent outbreaks. As such, the 1958-1960 Mautam resulted in a significant loss of lives; more recently,...
conference paper 2014
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Van Doorn, F.A.P. (author), Gielen, M.A. (author), Stappers, P.J. (author)
Co-research is a method that engages participants in contextual user research by giving them the role of researcher. This method aids to capture their input in the fuzzy front end of the design process. A previous study [5] showed that children can act as co- researchers to gather contextual knowledge. In that study 20 children aged 9-12...
conference paper 2014
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