Searched for: author:"Bos, R."
(1 - 18 of 18)
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van den Bos, R. (author), Bokhorst, R. (author)
This thesis presents a resonant sensor circuit design that converts the deformation of a load cell in a conveyor belt into a change in resonance frequency. The sensor is inductively coupled to a reader circuit using planar PCB inductor coils. A sensor circuit was designed, fitted on a square PCB with 14.14 mm side length. The circuit consists of...
bachelor thesis 2020
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Mulders, S.P. (author), Zaaijer, M B (author), Bos, R. (author), van Wingerden, J.W. (author)
Standardized, easy to use, and preferably open-source research software is an important aspect in supporting and solidifying the wind turbine community. To this end, three contributions in the form of open-source software projects are presented in this paper. First, a community-driven wind turbine baseline controller, the Delft Research...
journal article 2020
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Bos, R. (author)
Wind turbines are the largest rotating machines on the planet, operating in some of the most remote and hostile areas. During a lifespan of several decades, they have to withstand storms, waves, and gusts (and preferably produce electricity in the process). Yet, designers cannot make them too strong. Every additional kilogram of mass has to be...
doctoral thesis 2017
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van Eijk, S.F. (author), Bos, R. (author), Bierbooms, W.A.A.M. (author)
An important problem in wind turbine design is the prediction of the 50-year load, as set by the IEC 61400-1 Design Load Case (DLC) 1.1. In most cases, designers work with limited simulation budgets and are forced to use extrapolation schemes to obtain the required return level. That this is no easy task is proven by the many studies dedicated...
journal article 2017
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Bos, R. (author), Giyanani, A.H. (author), Bierbooms, W.A.A.M. (author)
Lidars have gained a lot of popularity in the field of wind energy, partly because of their potential to be used for wind turbine control. By scanning the oncoming wind field, any threats such as gusts can be detected early and high loads can be avoided by taking preventive actions. Unfortunately, lidars suffer from some inherent weaknesses that...
journal article 2016
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Bos, R. (author), Veldkamp, D. (author)
An important yet difficult task in the design of wind turbines is to assess the extreme load behaviour, most notably finding the 50-year load. Where existing methods often focus on ways to extrapolate from small sample sizes, this paper proposes a different approach. It combines generating constrained gusts in turbulence fields, Delaunay...
journal article 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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Bos, R. (author), Bierbooms, W. (author), Van Bussel, G. (author)
With the trend of moving towards 10-20MW turbines, rotor diameters are growing beyond the size of the largest turbulent structures in the atmospheric boundary layer. As a consequence, the fully uniform transients that are commonly used to predict extreme gust loads are losing their connection to reality and may lead to gross over dimensioning....
journal article 2014
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Bos, R. (author)
Like many vertical-axis wind turbines (vawts) of the Darrieus type, Turby fails to achieve a fully passive start-up. Experiments indicate that there is a band of negative torque—often referred to as dead band in literature—somewhere in the tip speed range 0.5 B l B 1.6. The reason behind this is that, unfortunately, the power coefficient...
master thesis 2012
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Den Dekker, A.J. (author), Poot, D.H.J. (author), Bos, R. (author), Sijbers, J. (author)
Functional magnetic resonance imaging (fMRI) data that are corrupted by temporally colored noise are generally preprocessed (i.e., prewhitened or precolored) prior to functional activation detection. In this paper, we propose likelihood-based hypothesis tests that account for colored noise directly within the framework of functional activation...
journal article 2009
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Hellebrand, H. (author), Van den Bos, R. (author), Hoffmann, L. (author), Juilleret, J. (author), Krein, A. (author), Pfister, L. (author)
Changes in spatio-temporal rainfall patterns have an effect on the hydrological behavior of river basins, the magnitude of the effects depending among others on the physiographic basin characteristics. To assess climate and discharge fluctuations, a visualization tool was developed as a contribution to exploratory data analysis. The tool...
journal article 2008
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Bos, R. (author)
doctoral thesis 2006
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Sijbers, J. (author), Den Dekker, A.J. (author), Poot, D. (author), Bos, R. (author), Verhoye, M. (author), Van Camp, N. (author), Van der Linden, A. (author)
In the literature, many methods are available for estimation of the variance of the noise in magnetic resonance (MR) images. A commonly used method, based on the maximum of the background mode of the histogram, is revisited and a new, robust, and easy to use method is presented based on maximum likelihood (ML) estimation. Both methods are...
conference paper 2006
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Broersen, P.M.T. (author), Bos, R. (author)
journal article 2006
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Broersen, P.M.T. (author), Bos, R. (author)
journal article 2006
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Broersen, P.M.T. (author), de Waele, S. (author), Bos, R. (author)
journal article 2004
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Van den Broek, M. (author), Van der Giessen, M. (author), Ginsel, D. (author), Kooy, M. (author), Van der Mark, R. (author), De Nooijer, J. (author), Prinsen, A. (author), Van de Rest, P. (author), Albers, V.J.J. (author), Arends, A. (author), Bos, R. (author), Ouwehand, J. (author), Reeskamp, B. (author), Stive, M.J.F. (author), Waterman, R.E. (author), Zitman, T.J. (author)
In Katwijk zijn er verschillende partijen die plannen hebben met betrekking tot de kust. Veiligheidsverhoging van een deel van Katwijk dat nog niet op deltaniveau is, een vergrootte uitwateringsvoorziening, de geprojecteerde nieuwe zeejachthaven en ontsluiting van het scheepvaartverkeer vanaf zee zijn hierbij de kernwoorden. De projectgroep...
student report 2002
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Bos, R. (author), de Waele, S. (author), Broersen, P.M.T. (author)
journal article 2002
Searched for: author:"Bos, R."
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