Searched for: subject:"Modelling"
(1 - 20 of 990)

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Nikolic, I. (author), Warnier, Martijn (author), Kwakkel, J.H. (author), Chappin, E.J.L. (author), Lukszo, Z. (author), Brazier, F.M. (author), Verbraeck, A. (author), Cvetkovic, M. (author), Palensky, P. (author)
report 2019
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Nikolic, I. (author), Lukszo, Z. (author), Chappin, E.J.L. (author), Warnier, Martijn (author), Kwakkel, J.H. (author), Bots, P.W.G. (author), Brazier, F.M. (author)
report 2019
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Alons, Kristel (author), Somers, Guy (author), van Duin, Ron (author)
Synchromodaal transport biedt een oplossing om goederen efficiënter en betrouwbaarder te vervoeren, maar blijkt in de praktijk vaak nog lastig te realiseren. Welke uitdagingen zijn er voor bedrijven van intermodaal naar synchromodaal transport over te schakelen?
report 2019
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Welle Donker, F.M. (author), Crompvoets, J (author), van Loenen, B. (author)
Since 2009, Open Government Data initiatives have been launched worldwide and the concept of open data is gaining momentum. Open data are often associated with realizing ambitions, such as a more transparent and efficient government, solving societal problems and increased economic value. There has been ample literature describing the (potential...
report 2017
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Nazari Moghaddam, R. (author)
This report concerns the addition of a new well control option ‘Flow Through Surface Choke’ (CHK) to AD-GPRS, the Automatic Differentiation General Purpose Research Simulator developed at Stanford University. The report provides background information on the modelling of fluid flow through surface chokes and gives details of the implementation...
report 2017
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Loonstijn, M.A. (author)
The Diesel A model has been developed with the idea of looking at overall engine cycle performance in a larger system. As such, the goal has always been to provide an acceptable prediction of the engine performance without sacrificing the computational performance of the model. The simplest form of the Diesel A model has only a single integrator...
report 2017
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Yuan, Jun (author), Vardon, P.J. (author), Hicks, M.A. (author), Hart, J (author), Fokker, PA (author)
OPERA-PU-TUD321b<br/>Radioactive substances and ionizing radiation are used in medicine, industry, agriculture, re- search, education and electricity production. This generates radioactive waste. In the Neth- erlands, this waste is collected, treated and stored by COVRA (Centrale Organisatie Voor Radioactief Afval). After interim storage for a...
report 2017
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Dintzner, N. (author), Van Deursen, A. (author), Pinzger, M. (author)
Evolving a large scale, highly variable systems is a challenging task. For such a system, evolution operations often require to update consistently both their implementation and its feature model. In this context, the evolution of the feature model closely follows the evolution of the system. The purpose of this work is to show that fine-grained...
report 2015
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Ashoori, E. (author), Jansen, J.D. (author)
There is a general consensus that the most efficient method for large-scale well location optimization is gradient-based with gradients computed with an adjoint formulation. Handels et al. (2007) (later published in journal form as Zandvliet et al., 2008), were the first to use the adjoint method for well placement optimization for which they...
report 2015
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Van Dorsser, J.C.M. (author)
This report, that provides an extended summary of a similar named thesis, addresses how a new method for the evaluation of policies with a very long term impact on the Dutch Inland Waterway Transport (IWT) system can be developed. It proposes an outline for a very long term transport model, prepares a number of very long term scenarios, and...
report 2015
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Arnold, P. (author), Vardon, P.J. (author), Hicks, M.A. (author), Fokkens, Jan (author), Fokker, PA (author)
OPERA-PU-TUD311<br/>The Onderzoeks Programma Eindberging Radioactief Afval (OPERA) is the third national research programme for the geological disposal of radioactive waste in the Netherlands, operating during the period 2011 to 2016. This document is the final report of Work Package 3.1, where the principal technical feasibility of the current...
report 2015
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De Beer, R. (author), Van Ormondt, D. (author)
Work in context of European Union TRANSACT project. We have developed a Java/JNI/C/Fortran based software application, called MonteCarlo, with which the users can carry out Monte Carlo studies in the field of \emph{in vivo} MRS. The application is supposed to be used as a tool for supporting the \emph{j}MRUI platform, being the \emph{in vivo}...
report 2014
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Dintzner, N.J.R. (author), Kulesza, U. (author), Van Deursen, A. (author), Pinzger, M. (author)
Evolving large-scale, complex and highly variable systems is known to be a difficult task, where a single change can ripple through various parts of the system with potentially undesirable effects. In the case of product lines, and moreover multi-product lines, a change may affect only certain variants or certain combinations of features, making...
report 2014
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Qiu, Y. (author), Van Gijzen, M.B. (author), Van Wingerden, J.W. (author), Verhaegen, M. (author), Vuik, C. (author)
In this paper, we consider preconditioning for PDE-constrained optimization problems. The underlying problems yield a linear saddle-point system. We study a class of preconditioners based on multilevel sequentially semiseparable (MSSS) matrix computations. The novel global preconditioner is to make use of the global structure of the saddle-point...
report 2014
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Dintzner, N.J.R. (author), Van Deursen, A. (author), Pinzger, M. (author)
The Linux kernel feature model has been studied as an example of large scale evolving feature model and yet details of its evolution are not known. We present here a classification of feature changes occurring on the Linux kernel feature model, as well as a tool, FMDiff, designed to automatically extract those changes. With this tool, we...
report 2014
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Cvoric, D. (author), Lahaye, D. (author), De Haan, S.W.H. (author), Ferreira, J.A. (author)
Due to increasing levels of fault currents, Fault Current Limiters (FCLs) are expected to play an important role in the protection of future power grids. Inductive saturable FCLs are particularly interesting due to their inherent reaction on the fault. Many different configurations have been proposed in literature. Being difficult or impossible...
report 2013
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Romero-Valle, M.A. (author), Pisaroni, M. (author), Van Puyvelde, D. (author), Lahaye, D.J.P. (author), Sadi, R. (author)
Rotary kilns are used in many industrial processes ranging from cement manufacturing to waste incineration. The operating conditions vary widely depending on the process. While there are many models available within the literature and industry, the wide range of operating conditions justifies further modeling work to improve the understanding of...
report 2013
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Mlecnik, E. (author), Kondratenko, I. (author), Haavik, T. (author)
Single-family home renovations often show deficiencies in project management. There might be a market addressing house owners who would prefer integrated renovation services and clear responsibilities. Companies that would respond to these client’s needs would have a clear market potential, particularly for ambitious energyefficient home...
report 2013
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Hedman, L. (author), Manley, D. (author), Van Ham, M. (author), Östh, J. (author)
Studies of neighbourhood effects typically investigate the instantaneous effect of point-in-time measures of neighbourhood poverty on individual outcomes. It has been suggested that it is not solely the current neighbourhood, but also the neigh-bourhood history of an individual that is important in determining an individual’s outcomes. The...
report 2012
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Delinchant, B. (author), Lahaye, D. (author), Wurtz, F. (author), Coulomb, J.L. (author)
This paper deals with the Space Mapping optimization algorithms in general and with the Manifold Mapping technique in particular. The idea of such algorithms is to optimize a model with a minimum number of each objective function evaluations using a less accurate but faster model. In this optimization procedure, fine and coarse models interact...
report 2012
Searched for: subject:"Modelling"
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