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Anders, K. (author), Lindenbergh, R.C. (author), Vos, S.E. (author), Mara, Hubert (author), de Vries, S. (author), Höfle, B. (author)
Geomorphic processes occur spatially variable and at varying magnitudes, frequencies and velocities, which poses a great challenge to current methods of topographic change analysis. For the quantification of surface change, permanent terrestrial laser scanning (TLS) can generate time series of 3D point clouds at high temporal and spatial...
journal article 2019
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Poplavskaya, Ksenia (author), de Vries, Laurens (author)
The aggregator has been touted as the key enabler of active engagement of distributed energy resources and promises to contribute to greater economic efficiency in the European balancing markets by providing cheap sources of flexibility. This paper presents an empirical analysis of how aggregators organize themselves in relation to other...
conference paper 2018
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Klaassen, R.G. (author), Ceulemans, D.S. (author), de Vries, P. (author)
conference paper 2018
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de Vries, S. (author), de Schipper, M.A. (author), Roest, Lambertus W.M. (author), Luijendijk, A.P. (author), Aarninkhof, S.G.J. (author)
Feeder nourishments, where sand quantities of O (10 million m³) are placed locally to feed adjacent coastal stretches, are suggested nowadays as an alternative for local, smaller-scale nourishments (< 1 million m³). These feeder nourishments rely on natural forces to spread the sediment. While processes that govern this spreading such as...
abstract 2018
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Eble, Philipp (author), de Vries, H.J. (author)
The paper at hand contemplatesthe effect of a centuries-old national food safety standard on innovation in aglobalizing market. To that end, the case of the German Beer Industry is analysedto explicate the relationship between a longstanding beer purity decree and brewinginnovation. Over 500 years of existence the so-called “Reinheitsgebot”,...
conference paper 2018
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de Vries, G. (author)
report 2018
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Hoppe, T. (author), de Vries, G. (author)
The transition to low carbon energy systems cannot solely rely on technological innovation. It also requires social innovation. In the context of energy transition social innovation can be defined as innovation that is social in its means and which contributes to low carbon energy transition, civic empowerment and social goals pertaining to the...
contribution to periodical 2018
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Tursucu, S. (author), Spandaw, J.G. (author), Flipse, S.M. (author), Jongbloed, G. (author), de Vries, M.J. (author)
Senior pre-university education (SPE) students experience difficulties applying mathematics to physics. This paper reports the outcome of an online explorative quantitative study of teachers' belief systems about improving transfer of algebraic skills from mathematics into physics, conducted among 503 mathematics and physics teachers working...
journal article 2018
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Tursucu, S. (author), Spandaw, J.G. (author), de Vries, M.J. (author)
Students in upper secondary education encounter difficulties in applying mathematics in physics. To improve our understanding of these difficulties, we examined symbol sense behavior of six grade 10 physics students solving algebraic physic problems. Our data confirmed that students did indeed struggle to apply algebra to physics, mainly...
journal article 2018
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Cohn, Nicholas (author), Ruggiero, Peter (author), de Vries, S. (author), Kaminsky, George M. (author)
Coastal foredune growth is typically associated with aeolian sediment transport processes, while foredune erosion is associated with destructive marine processes. New data sets collected at a high energy, dissipative beach suggest that total water levels in the collision regime can cause dunes to accrete-requiring a paradigm shift away from...
journal article 2018
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de Vries, R. (author), Brown, M.T.H. (author), Vos, R. (author)
The potential benefits of hybrid-electric propulsion (HEP) have led to an increased interest in this topic over the past decade. One promising advantage of HEP is the distribution of power along the airframe, which enables synergistic configurations with improved aerodynamic and propulsive efficiency. The purpose of this paper is to present a...
conference paper 2018
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Poquet, Oleksandra (author), Kovanović, Vitomir (author), de Vries, P. (author), Hennis, Thieme (author), Joksimović, Srećko (author), Gašević, Dragan (author), Dawson, Shane (author)
The capacity to foster interpersonal interactions in massive open online courses (MOOCs) has frequently been contested, particularly when learner interactions are limited to MOOC forums. The establishment of social presence-a perceived sense of somebody being present and "real"-is among the strategies to tackle the challenges of online...
journal article 2018
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Marcus, E. A.P. (author), de Vries, R. (author), Raju Kulkarni, A. (author), Veldhuis, L.L.M. (author)
This paper addresses the aerodynamic performance and numerical modeling of over-the-wing propellers. Installing the propeller above a wing has the potential to increase wing lift-to-drag ratio, high-lift capabilities, and to reduce flyover noise. However, the prediction of its performance is difficult, since research on the aerodynamic...
conference paper 2018
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Huizer, Sebastian (author), Radermacher, M. (author), de Vries, S. (author), Oude Essink, Gualbert H.P. (author), Bierkens, Marc F.P. (author)
For a large beach nourishment called the Sand Engine – constructed in 2011 at the Dutch coast – we have examined the impact of coastal forcing (i.e. natural processes that drive coastal hydro- and morphodynamics) and groundwater
recharge on the growth of a fresh groundwater lens between 2011 and 2016. Measurements of the morphological change...
journal article 2018
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Mast, Danića (author), Schipper, Sylvia (author), van Doorn, F.A.P. (author), Schut, A. (author), Gielen, M.A. (author), de Vries, Sanne (author)
This study is carried out within the context of a research and innovation
project Co-design with Kids that aims to support teaching of broad so-called ‘21st
century’ skills. In this project, design toolboxes for use within primary education
are developed and studied, with real life clients and assignments. In the case
described...
conference paper 2018
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Wardenier, J. (author), de Vries, P.A. (author), Timmerman, Gerrit (author)
This paper deals with the evaluation of fatigue cracks under a concentrated compression (wheel) load in an I-section with full penetration welds between the web and flange. The objective is to investigate whether cracks stop or nearly stop when they have grown through the residual tensile stress field. These experimental investigations are...
journal article 2018
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Hagenaars, Gerben (author), de Vries, S. (author), Luijendijk, A.P. (author), de Boer, W.P. (author), Reniers, A.J.H.M. (author)
Measured trends and variability in shoreline position are used by coastal managers, scientists and engineers to understand and monitor coastal systems. This paper presents a new and generic method for automated shoreline detection from the largely unexplored collection of publicly available satellite imagery. The position of the obtained...
journal article 2018
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Sinnige, T. (author), de Vries, R. (author), Della Corte, Biagio (author), Avallone, F. (author), Ragni, D. (author), Eitelberg, G. (author), Veldhuis, L.L.M. (author)
An experimental analysis was performed of the unsteady aerodynamic loading caused by the impingement of a propeller slipstream on a downstream lifting surface. When installed on an aircraft, this unsteady loading results in vibrations that are transmitted to the fuselage and are perceived inside the cabin as structure-borne noise. A pylon...
journal article 2018
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Galagan, Yulia (author), Di Giacomo, Francesco (author), Gorter, Harrie (author), Kirchner, Gerwin (author), de Vries, Ike (author), Andriessen, Ronn (author), Groen, W.A. (author)
The feasibility of upscaling the perovskite solar cells technologies to high volume production using roll-to-roll (R2R) slot die coating is demonstrated in this study. Perovskite solar cells are produced by R2R slot die coating on flexible substrates with a width of 30 cm and the web speed of 3–5 m min−1. R2R deposition of the electron transport...
journal article 2018
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Zarghami-Hamrah, Saeid (author), de Vries, M.J. (author)
In the present study, we refer to Carr's theory on the nature of educational practice for evaluating teaching as a praxis in relation to two major changes, i.e. ubiquitous learning and massive communication caused by MOOCs. With regard to the first change, we argue that the teacher is faced with the problem of encouraging the learners to get...
journal article 2018
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