Searched for:
(1 - 20 of 240)

Pages

document
de Vries, Niels (author)
Energy-based surgical instruments are increasingly used in laparoscopic surgical procedures. For example, the ultrasonic scalpel enables tissue coagulation and -cutting by transferring a mechanical vibration to the tissue. Additionally, real-time sensing is implemented to improve the surgical procedures. Intraoperative ultrasonography is one of...
master thesis 2019
document
de Vries, Sybren (author)
Although many studies have been performed on porous absorbable iron scaffolds created by the space holder method, no studies have considered the influence of variations in space holders on absorbable scaffolds. The present study aimed to clarify the effects of space holder particle size and volume fraction, on the pore structure, resultant...
master thesis 2019
document
de Vries, Niels (author)
To achieve significant reduction in greenhouse gas emissions in shipping and enable ship owners to phase out fossil fuels entirely, renewable fuels, such as ammonia, play a crucial role. Ammonia is considered a balanced solution in terms of volumetric energy density and renewable synthetic production cost compared to other renewable fuels....
master thesis 2019
document
de Vries, Lydia (author)
This project elaborates on the Future of Structuralism by transforming the Centraal Beheer Office Building of Herman Hertzberger into the machine museum. A combination of museum and factory should make the recycle process of plastic visible for visitors but at the same time reinforce aspects of the existing building.
master thesis 2019
document
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
document
de Vries, F.K. (author)
A topological superconductor is a new state of matter that attract a lot of interest for its potential application in quantum computers. However, there is no single material known to host this state of matter. In this thesis, combinations of superconductors and semiconductors are investigated experimentally with the goal to engineer such a...
doctoral thesis 2019
document
de Vries, Maarten (author)
Pose estimation through fusion of GNSS with secondary sensors has long been an established field. With the developments surrounding autonomous navigation over the past decade this topic has gained extra importance. In the current literature GNSS based pose and localisation is often improved through fusion with either a IMU}or VS with the goal of...
master thesis 2019
document
Hoonhout, B.M. (author), de Vries, S. (author)
Mega nourishments are a novel approach to stimulating coastal safety and resilience. Mega nourishments are intended to spread along the coast on a decadal time scale by natural sediment transport processes with a minimum of intrusion into the natural coastal system. The supratidal morphodynamic behaviour of mega nourishments is not well...
journal article 2019
document
Poplavskaya, K. (author), de Vries, Laurens (author)
Thanks to new technological advancements and EU policy impulse, distributed energy resources (DER) are poised to become a viable alternative to conventional electricity generation for the provision of balancing services to transmission system operators. In this paper we show that the design variables that affect DER access to and...
journal article 2019
document
de Vries, Rozemarijn (author)
A design of a concert hall for the heart of London.
master thesis 2019
document
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
document
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
document
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
document
Vossen, T.E. (author), Henze-Rietveld, I. (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
document
Vossen, T.E. (author), Tigelaar, E. H. (author), Henze-Rietveld, I. (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
document
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
document
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
document
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
document
Vossen, T.E. (author), Henze-Rietveld, I. (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
document
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
Searched for:
(1 - 20 of 240)

Pages