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Dighe, V.V. (author), De Oliveira Andrade, G.L. (author), van Bussel, G.J.W. (author)
The practice of ducting wind turbines has shown a beneficial effect on the overall performance, when compared to an open turbine of the same rotor diameter1. However, an optimization study specifically for ducted wind turbines (DWT’s) is missing or incomplete. This work focuses on a numerical optimization of the duct orientation and the ideal...
abstract 2017
document
Mulders, S.P. (author), Jager, Stéphane (author), Diepeveen, N.F.B. (author), van Wingerden, J.W. (author)
The drivetrain of most wind turbines currently being deployed commercially consists of a rotor-gearboxgenerator configuration in the nacelle. This abstract introduces the control system design and optimization for a wind turbine with a hydraulic drivetrain, based on the Delft Offshore Turbine (DOT) concept1 . This concept enables the connection...
abstract 2017
document
Ong, Carmichael F. (author), Geijtenbeek, T. (author), Hicks, Jennifer L. (author), Delp, Scott L. (author)
Predictive simulations of human walking have great potential to expand our understanding of locomotion. For instance, they can isolate the effect of specific impairments on observed gait pathologies or aid in designing assistive devices by modeling human-device interactions. Introducing simulated impairments or adding augmentation devices to a...
abstract 2017
document
Boehmer, J.K. (author), Duinker, R.M.E. (author), Bentum, M (author)
Due to the latest funder requirements on data management and Open Data, documenting and managing research data during the research and preparing it for publication gained in importance. Making research data findable and accessible for decades via a trusted and certified data archive – such as 4TU.Centre for Research Data – and therefore enabling...
abstract 2018
document
Succo, Andrea (author), Mittempergher, Silvia (author), Balsamo, Fabrizio (author), Bistacchi, Andrea (author), Storti, Fabrizio (author), Bruna, P.B.R. (author), Bertotti, G. (author)
abstract 2017
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Root, B.C. (author), Hanssen, R.F. (author), Vermeersen, L.L.A. (author), Munnik, M.E. (author), Vlijm, Rozemarijn (author)
In November 1934, Den Helder, The Netherlands, the start of a remarkable voyage commenced. The Hr. Ms.K-XVIII, a Dutch submarine, was about to set sail to Soerabaya, Indonesia. Onboard was a Dutch professor, Felix Andries Vening Meinesz. He was able to measure the Earth’s gravity field with similar precision as on land for the first time in...
abstract 2015
document
Vardon, P.J. (author), Amorim Mota, N.J. (author), van Loosdrecht, Mark C.M. (author), Jonkers, H. (author)
Earth houses are considered sustainable and affordable as compared to houses built with concrete or fired clay bricks. Moreover, it preserves the vernacular social and spatial traditions (cultural identity) of the community. With rapid industrialization and the increase in popularity of concrete and brick constructions, a decline in earth houses...
abstract 2018
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Vreugdenhil, H.S.I. (author), Slinger, J (author), de Boer, W.P. (author), Ker Rault, PA (author), ottow, bouke (author), Giardino, Alessio (author), Briere, Christophe (author)
A867
Sustainable port development and integrated coastal management (ICM) require: (i) ecosystem-based or integrated design, (ii) a future orientation, (iii) stakeholder-inclusive processes. Stakeholder-inclusive processes, the focus of this paper, increase the diversity of knowledge and the availability of information, and expand the pool...
abstract 2018
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Liang, X. (author), An, Kun (author), Homem de Almeida Correia, G. (author), van Arem, B. (author)
abstract 2018
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Weemstra, C. (author), Obermann, Anne (author), Blanck, Hanna (author), Verdel, Arie (author), Paap, B (author), Guðnason, Egill Árni (author), Hersir, Gylfi Páll (author), Jousset, Philippe (author), Sigurðsson, Ömar (author)
We report on the results obtained from a dense seismic deployment over a geothermal reservoir. The reservoir has been producing continuously for almost a decade and is located on the tip of the Reykjanes peninsula, SW Iceland. The seismic stations on top of the reservoir have continuously recorded the ambient seismic wavefield between April 2014...
abstract 2016
document
Askarinejad, A. (author)
Landslides triggered by hydraulic perturbations are initiated by a decrease in the effective stress, and hence the shear strength of the soil, as a result of the increase in pore water pressure which might occur due to either rain infiltration or exfiltration of water from the bedrock. However, several factors including the shape and hydraulic...
abstract 2015
document
Weemstra, C. (author), Draganov, D.S. (author), Ruigrok, E.N. (author)
abstract 2015
document
Kurganova, Evgenia (author), Giesbers, A.J.M. (author), Vollebregt, S. (author), Notenboom, Arnoud (author), Vles, David (author), Nasalevich, Maxim (author), van Zwol, Peter (author)
abstract 2018
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Weemstra, C. (author), Obermann, Anne (author), Verdel, Arie (author), Paap, B (author), Blanck, Hanna (author), Guðnason, Egill Árni (author), Hersir, Gylfi Páll (author), Jousset, Philippe (author), Sigurðsson, Ömar (author)
We report on the results obtained from a dense seismic deployment over a geothermal reservoir located on the tip of the Reykjanes peninsula, SW Iceland. The available seismic stations have continuously recorded the ambient-seismic wave field between April 2014 and August 2015. Using seismic interferometry (SI), seismic responses were generated...
abstract 2016
document
Intriago Zambrano, J.C. (author), Ertsen, M.W. (author), Diehl, J.C. (author), Michavilla, Jaime (author), Arenas, Eva (author)
Global food production needs to increase. Such an increase can come from intensified irrigated agriculture. Many current irrigation technologies are energy- and cost-intensive. Providing irrigation services instead of selling hardware addresses the (financial) reality of smallholder farmers and builds a sustainable business model rather than...
abstract 2018
document
van Nooijen, R.R.P. (author), Kolechkina, A.G. (author)
The problem of smoothing dry weather inflow variations for
a Waste Water Treatment Plant (WWTP) that receives sewage from
multiple mixed sewer systems is presented, together with a first rough
solution algorithm. A simplification followed by a naive translation into
a zero-one linear programming problem results in 1152...
abstract 2016
document
Laumann, S.J. (author), Zhou, Jianchao (author), Heimovaara, T.J. (author)
The utilization of natural processes for engineering purposes has been widely discussed in recent years since they might enable the development of cost-effective, robust and environmentally compatible engineering technologies. Biomineralization is one of the many possible biogeochemical processes that is currently investigated in detail. We...
abstract 2016
document
van Nooijen, R.R.P. (author), Kolechkina, A.G. (author)
In [1,2] Kulisch defines (ordered) ringoids and vectoids to provide a theoretical basis for computer arithmetic and interval arithmetic. One interesting aspect of his treatment is the search for necessary and sufficient conditions for a meaningful notion of negation and zero. In this paper we consider this both from the point of view of...
abstract 2016
document
Martinelli, Mattia (author), Bistacchi, Andrea (author), Mittempergher, Silvia (author), Balsamo, Fabrizio (author), Succo, Andrea (author), Storti, Fabrizio (author), Bruna, P.O.B.R. (author), Bertotti, G. (author), Meda, Marco (author)
abstract 2017
document
Ali, A. (author), de Winter, J.C.F. (author), Dodou, D. (author), Breedveld, P. (author)
To overcome the challenges presented by complex 3-dimensional shapes and tortuous vasculature in the cardiovascular environment, we previously developed a prototype of a multi-steerable catheter having 4 DOFs controlled by two joysticks [1]. However, it remains unknown whether the added steering possibilities are beneficial in the cardiovascular...
abstract 2017
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