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de Vries, R. (author), Hoogreef, M.F.M. (author), Vos, Roelof (author)This study compares a hybrid-electric aircraft featuring a propulsive empennage and over-the- wing, distributed-propulsion to a conventional regional turboprop. The impact of multiple design parameters, mission requirements, and technology assumptions on maximum take-off mass and payload-range energy efficiency is evaluated, in order to...conference paper 2019
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Cohn, Nicholas (author), Hoonhout, B.M. (author), Goldstein, Evan B. (author), de Vries, S. (author), Moore, Laura J. (author), Vinent, Orencio Durán (author), Ruggiero, Peter (author)Coastal landscape change represents aggregated sediment transport gradients from spatially and temporally variable marine and aeolian forces. Numerous tools exist that independently simulate subaqueous and subaerial coastal profile change in response to these physical forces on a range of time scales. In this capacity, coastal foredunes have...journal article 2019
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van Gelder, Jean-Louis (author), de Vries, Reinout E. (author), Demetriou, A.M. (author), van Sintemaartensdijk, Iris (author), Donker, Tara (author)Objectives: This study proposes an alternative hypothetical scenario method capitalizing on the potential of virtual reality (VR). Rather than asking participants to imagine themselves in a specific situation, VR perceptually immerses them in it. We hypothesized that experiencing a scenario in VR would increase feelings of being “present” in...journal article 2019
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van Regteren, Marin (author), Colosimo, I. (author), de Vries, Pepijn (author), van Puijenbroek, Marinka Elisabeth Barbara (author), Freij, Victor Sebastiaan (author), Baptist, Martin Josephus (author), Elschot, Kelly (author)Coastal systems worldwide deliver vital ecosystem services, such as biodiversity, carbon sequestration, and coastal protection. Effectivity of these ecosystem services increases when vegetation is present. Understanding the mechanisms behind vegetation establishment in bio-geomorphic systems is necessary to understand their ability to recover...journal article 2019
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de Vries, G. (author)Climate change is one of the greatest challenges of our times. We humans must change our behavior in the short run to mitigate the effects of climate change in the long run. Policymakers develop environmental policies to motivate this behavioral change. However, people may nonetheless fail to change to more sustainable practices, defeating...journal article 2019
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de Vries, N.L. (author), Van Unen, Vincent (author), Ijsselsteijn, Marieke E. (author), Abdelaal, T.R.M. (author), Van Der Breggen, Ruud (author), Farina Sarasqueta, Arantza (author), Mahfouz, A.M.E.T.A. (author), Peeters, Koen C.M.J. (author), Höllt, T. (author), Lelieveldt, B.P.F. (author), Koning, Frits (author), De Miranda, Noel F.C.C. (author)Objective: A comprehensive understanding of anticancer immune responses is paramount for the optimal application and development of cancer immunotherapies. We unravelled local and systemic immune profiles in patients with colorectal cancer (CRC) by high-dimensional analysis to provide an unbiased characterisation of the immune contexture of...journal article 2019
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Geraeds, Marlein (author), van Emmerik, T.H.M. (author), de Vries, Robin (author), bin Ab Razak, Mohd Shahrizal (author)Plastic debris has become an abundant pollutant in marine, coastal and riverine environments, posing a large threat to aquatic life. Effective measures to mitigate and prevent marine plastic pollution require a thorough understanding of its origin and eventual fate. Several models have estimated that land-based sources are the main source of...journal article 2019
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Do, T.K.A. (author), de Vries, S. (author), Stive, M.J.F. (author)Shoreline-change data are of primary importance for understanding coastal erosion and deposition as well as for studying coastal morphodynamics. Shoreline extraction from satellite images has been used as a low-cost alternative and as an addition to traditional methods. In this work, satellite-derived shorelines and corresponding shoreline...journal article 2019
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Hoogreef, M.F.M. (author), Vos, Roelof (author), de Vries, R. (author), Veldhuis, L.L.M. (author)This paper presents the results of a study into the effect of distributed hybrid-electric propulsion on aircraft performance and characteristics. To size these aircraft, a new preliminary sizing method for hybrid-electric aircraft with distributed propulsion, including aero-propulsive interaction, is combined with a modified Class-II weight...conference paper 2019
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Vossen, T.E. (author), Henze, Ineke (author), Rippe, R. C.A. (author), Van Driel, J. H. (author), de Vries, M.J. (author)Research and design activities are important focus points in international policies for secondary Science, Technology, Engineering and Mathematics (STEM) education. It is up to school teachers to implement and supervise these activities in the STEM classroom. However, not much is known about the attitudes teachers hold towards supervising...journal article 2019
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Huijts, N.M.A. (author), de Vries, G. (author), Molin, E.J.E. (author)Public acceptability of low-carbon energy projects is often measured with one-off polls. This implies that opinion-shifts over time are not always taken into consideration by decision makers relying on these polls. Observations have given the impression that public acceptability of energy projects increases after implementation. However, this...journal article 2019
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de Boer, W.P. (author), Mao, Yongjing (author), Hagenaars, Gerben (author), de Vries, S. (author), Slinger, J (author), Vellinga, T. (author)In Africa, several new seaport developments are being considered. In sedimentary environments, such port developments can have adverse impacts on the evolution of adjacent coastlines. To learn from past port engineering practice, we created a unique database containing the coastline evolution and characteristics of 130 existing African seaports....journal article 2019
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Vossen, T.E. (author), Henze, Ineke (author), de Vries, M.J. (author), van Driel, J.A.S. (author)Research and design activities are becoming more important in Science, Technology, Engineering and Mathematics (STEM) and D&T (design and technology) education. Research and design are often taught separately from each other, while in professional STEM practices, many projects are neither ‘research only’ or ‘design only’—they are both. In...journal article 2019
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de Vries, Pieter Simke (author), van Kampen, E. (author)Established Control Allocation (CA) methods rely on knowledge of the control effectiveness for distributing control effector utilization for control of (overactuated) systems. The Innovative Control Effectors (ICE) aircraft model is highly overactuated with its 13 control effectors, CA is a preferred method to distribute control effector...conference paper 2019
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de Vries, R. (author), van Arnhem, N. (author), Avallone, F. (author), Ragni, D. (author), Vos, Roelof (author), Eitelberg, G. (author), Veldhuis, L.L.M. (author)This experimental study focuses on the aerodynamic interaction effects that occur between an over-the-wing (OTW) propeller and a wing boundary-layer. An OTW propeller is positioned above the hinge-line of a wing featuring a plain flap. The measurements are carried out with and without axial pressure gradients by deflecting the flap and by...conference paper 2019
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van Arnhem, N. (author), de Vries, R. (author), Vos, Roelof (author), Veldhuis, L.L.M. (author)This paper presents an experimental and numerical study of the aerodynamic interaction between horizontal tail-mounted propellers and the airframe. A representative aircraft model was installed in a low-speed wind-tunnel and measurements were taken with an external balance to determine the effect of propeller installation on integral forces...conference paper 2019
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Vossen, T.E. (author), Tigelaar, E. H. (author), Henze, Ineke (author), de Vries, M.J. (author), van Driel, J.A.S. (author)Technological design is a core activity in Science, Technology, Engineering and Mathematics (STEM) education. During the design process, students often employ research activities to enhance the quality of their design decisions and to rise above a mere trial-and-error approach to designing. There are many functions of research within the...journal article 2019
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Anders, K. (author), Lindenbergh, R.C. (author), Vos, S.E. (author), Mara, H. (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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Lindenbergh, R.C. (author), Van Der Kleij, S. (author), Kuschnerus, M. (author), Vos, S.E. (author), de Vries, S. (author)Sandy beaches are highly dynamic areas affected by different natural and anthropogenic effects. Large changes, caused by a storm for example, are in general well-understood and easy to measure. Most times, only small changes, at the centimeter scale, are occurring, but these changes accumulate significantly over periods from weeks to months....journal article 2019
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Schut, A. (author), Klapwijk, R.M. (author), Gielen, M.A. (author), van Doorn, Fenne (author), de Vries, M.J. (author)In this paper, we explore the early indicators of design fixation occurring during the concept development stage of children’s design processes. This type of fixation, which we named: concept fixation, causes a blind adherence to the current (possibly unfavourable) state of a design idea. Its occurrence hampers the creative thinking processes...journal article 2019