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Groen, M. (author), Van Schravendijk, M. (author), Barrett, R. (author), Vos, R. (author)The dynamic response of a new class of flight control actuators that rely on post-buckled recompressed (PBP) piezoelectric elements is investigated. While past research has proven that PBP actuators are capable of generating deflections three times higher than conventional bimorph actuators, this paper quantifies the work output and power...conference paper 2009
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Gentile, V. (author), Schrijer, F.F.J. (author), Van Oudheusden, B.W. (author), Scarano, F. (author)Stereoscopic Particle Image Velocimetry (PIV) was used to study the wake of an ogive-cylinder with after-body at a diameter-based Reynolds number ReD = 6.7 · 104. The vertical fluctuations reduced from a maximum of 0.18 U? in absence of rear-protrusion, up to 0.12 U? and 0.1 U? when the main-body to after- body diameter ratio d/D was increased...conference paper 2015
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Koedijk, O.C. (author)As a result of diminishing budgets for maintenance, the Dutch waterway authority Rijkswaterstaat is amongst others in search for economizing infrastructural facilities for commercial inland vessels along its waterways. One type of those facilities are the mooring constructions for line up- and waiting areas at lock approaches. Another type are...conference paper 2015
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Duz, B. (author), Huijsmans, R.H.M. (author), Veldman, A.E.P. (author), Borsboom, M.J.A. (author), Wellens, P.R. (author)In this paper the use of an absorbing boundary condition (ABC) is investigated for the numerical simulation of regular and irregular waves in three dimensional computational domains where Navier-Stokes equations describe the motion of the fluid. The numerical implementation of the ABC using a staggered grid arrangement is explained in detail....conference paper 2011
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Geurts, B.M. (author), Simao Ferreira, C. (author), Van Bussel, G.J.W. (author)Wind energy in the urban environment faces complex and often unfavorable wind conditions. High turbulence, lower average wind velocities and rapid changes in the wind direction are common phenomena in the complex built environments. A possible way to improve the cost-efficiency of urban wind turbines is the application of flowenhancing...conference paper 2010
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Bochev, P. (author), Gerritsma, M.I. (author)We present a spectral mimetic least-squares method which is fully conservative and decouples the primal and dual variables.conference paper 2014
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Papachristos, G. (author)This paper looks at how competition, regulation and technology coevolve in Formula 1 and how teams adapt. It does so at two levels: (i) the system level viewing Formula 1 competition as a whole and (ii) the organizational level, viewing team adaptation and car development level. The path this coevolutionary trajectory competition has taken in...conference paper 2014
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Forgaci, C. (author), Van Timmeren, A. (author)Assessment is one of the greatest challenges of urban resilience research. The difficulty of this task arises from the increasing complexity of urban environments and from the unpredictability of external changes, two trends that have raised environmental awareness and, consequently, led to a growing debate on the relationship between city and...conference paper 2014
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Al Mahmud, A. (author), Dijkhuis, S.Q. (author), Blummel, L. (author), Elberse, I. (author)In this paper we report the design of a communication system for people with aphasia. It consists of pairs of physical whiteboards that are connected over the internet. This allows users to combine any personal language skills with visuals and already existing materials at hand. The design has been based on feedback and evaluation sessions with...conference paper 2012
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Wong, J. (author), Berkelaar, R. (author), Pekelharing, H. (author)This paper presents an overview of an integral risk management approach with emphasis on the relationships with the costing and scheduling processes. Forms of uncertainty related to project planning are classified and implemented in the probabilistic costing and scheduling processes. Furthermore, the importance of the integral probabilistic...conference paper 2015
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Zlatanova, S. (author), Stoter, J. (author), Isikdag, U. (author)3D standards have been developed throughout the years for many different purposes: visualisation (fast and realistic), data management (efficient storage), modelling (validity and topology) or data exchange (platform independence). The developers also vary from companies to international standardisation organisations that originated from CAD/BIM...conference paper 2012
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- Sara Da Silva, J. (author) conference paper 2014
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Ligtvoet, A. (author)Although constructing a district heating network could be portrayed as a simple cost/benefit calculation, we suggest that other factors play an important role that cannot be ignored. In this contribution, we suggest that theories concerning cooperation (in industrial networks) roughly apply to micro (e.g. attitudes toward risk and trust), meso ...conference paper 2012
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Ranasinghe, R.W.M.R.J.B. (author), Swinkels, C. (author), Luijendijk, A.P. (author), Bosboom, J. (author), Roelvink, D. (author), Stive, M.J.F. (author), Walstra, D.J.R. (author)The Morphological Acceleration Factor (MORFAC) approach for morphodynamic upscaling enables the simulation of long term coastal evolution. However the general validity of the MORFAC concept for coastal applications has not yet been comprehensively investigated. Furthermore, a robust and objective method for the a priori determination of the...conference paper 2010
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Kester, L. (author), Griffin, A. (author), Hultink, E.J. (author), Lauche, K. (author)We develop a general model of how new product development portfolio decisions are made based on four diverse case studies. Previous research has investigated portfolio decisions as individually discrete decisions. We find that portfolio decision-making has to be considered as an integrated system of domain-based processes that produce evidence-,...conference paper 2009
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- Van Oosterom, P.J.M. (author), C.W. Quak, C.W. (author), Tijssen, T.P.M. (author) conference paper 2002
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- Stive, M.J.F. (author), De Vriend, H.J. (author), Nicholls Robert, J. (author), Capobianco, M. (author) conference paper 1993
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- Bovy, P.H.L. (author), Van Der Ward, J. (author), Baanders, A. (author) conference paper 1991
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Brinkgreve, R.B.J. (author), Post, M. (author)Displacement-based finite element calculations are primarily used for serviceability limit state (SLS) analysis, but the finite element method also offers possibilities for ultimate limit state (ULS) design in geotechnical engineering. The combined use of SLS and ULS calculations with partial safety factors according to the different design...conference paper 2015
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- Geerlofs, N. (author), Brakman, C.M. (author), Colijn, P.F. (author), Van der Zwaag, S. (author) conference paper 1994