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Snellen, M. (author), Siemes, K. (author), Simons, D.G. (author)
Nowadays extensive use is made of multibeam echosounders (MBES) for mapping the bathymetry of sea- and river-floors. The MBES is capable of covering large areas in limited time by emitting an acoustic pulse along a wide swathe perpendicular to the sailing direction. The angle and the corresponding two-way travel-time of the received signals are...
conference paper 2009
document
Bociort, F. (author), Van Turnhout, M. (author)
Finding multiple local minima in the merit function landscape of optical system optimization is a difficult task, especially for complex designs that have a large number of variables. We discuss here a method that enables a rapid generation of new local minima for optical systems of arbitrary complexity. We have recently shown that saddle points...
conference paper 2005
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Van de Sande, S.A.H. (author), Uijttewaal, W.S.J. (author), Verheij, H.J. (author)
Granular filters are used for protection against scour and erosion of base material. For a proper functioning it is necessary that at the interfaces between the filter structure, the subsoil and the water flowing above the filter structure no material will be transported. Different types of granular filters can be distinguished, this paper...
conference paper 2014
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Wilding, D. (author), Pozzi, P. (author), Soloviev, O.A. (author), Vdovine, G.V. (author), Verhaegen, M.H.G. (author)
Aberrations, scattering and absorption degrade the performance light-sheet fluorescence microscopes (LSFM). An adaptive optics system to correct for these artefacts and to optimize the light-sheet illumination is presented. This system allows a higher axial resolution to be recovered over the field-of-view of the detection objective. It is...
conference paper 2016
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Takenaka, T. (author), Okabe, A. (author)
This paper proposes a computational form-finding method for integrating parametric origami design and acoustic engineering to find the best geometric form of a concert hall. The paper describes an application of this method to a concert hall design project in Japan. The method consists of three interactive subprograms: a parametric origami...
conference paper 2013
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Tavakolan, M.T. (author), Ashuri, B. (author), Chiara, N. (author)
In situation of contractors competing to finish a given project with the least duration and cost, acquiring the ability to improve the project quality properties seems essential for project managers. Evolutionary Algorithm (EAs) have been applied as suitable algorithms to develop the multi-objective Time-Cost trade-off Optimization (TCO) and...
conference paper 2011
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Hamarat, C. (author), Kwakkel, J.H. (author), Pruyt, E. (author)
Uncertainty manifests itself in almost every aspect of decision making. Adaptive and flexible policy design becomes crucial under uncertainty. An adaptive policy is designed to be flexible and can be adapted over time to changing circumstances and unforeseeable surprises. A crucial part of an adaptive policy is the monitoring system and...
conference paper 2012
document
Koutrouvelis, A. (author), Hendriks, R.C. (author), Jensen, J (author), Heusdens, R. (author)
We propose a new multi-microphone noise reduction technique for binaural cue preservation of the desired source and the interferers. This method is based on the linearly constrained minimum variance (LCMV) framework, where the constraints are used for the binaural cue preservation of the desired source and of multiple interferers. In this...
conference paper 2016
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Babuska, R. (author), Sousa, J. (author), Verbruggen, H.B. (author)
conference paper 1995
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Lendering, K.T. (author), Jonkman, S.N. (author), Peters, D.J. (author)
New ports are mostly constructed on low lying coastal areas or shallow coastal waters. The quay wall and terminal yard are raised to a level well above mean sea level to assure flood safety. The resulting ‘convention-al terminal’ requires large volumes of fill material often dredged from the sea, which is costly. The terminal yard of a ‘polder...
conference paper 2013
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Mirzaei, M. (author), Roshanian, J. (author), Nasrin Hosseini, S. (author)
A gradient based method is presented for optimization of an airfoil configuration. The flow is governed by two dimensional, compressible Euler equations. A finite volume code based on unstructured grid is developed to solve the equations. The procedure is carried out for optimizing an airfoil with initial configuration of NACA 0012. The...
conference paper 2006
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Homsi, P. (author)
conference paper 2006
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Dingemans, L.M. (author), Papadakis, V. (author), Liu, P. (author), Adam, A.J.L. (author), Groves, R.M. (author)
Optical coherence tomography (OCT) is a contactless and non-destructive testing (NDT) technique based on lowcoherence interferometry. It has recently become a popular NDT-tool for evaluating cultural heritage. In this study, protective coatings on wood and their penetration into the wood structure were measured with a customized infrared fiber...
conference paper 2015
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Bociort, F. (author), Van Turnhout, M. (author), Marinescu, O. (author)
Saddle-point construction (SPC) is a new method to insert lenses into an existing design. With SPC, by inserting and extracting lenses new system shapes can be obtained very rapidly, and we believe that, if added to the optical designer’s arsenal, this new tool can significantly increase design productivity in certain situations. Despite the...
conference paper 2007
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Van Nooyen, R.R.P. (author), Kolechkina, A.G. (author)
In applied hydrology the question of the probability of exceeding a certain value occurs regularly. Often it is in a context where extrapolation from a relatively short time series is needed. It is well known that in its simplest form extreme value theory applies to independent identically distributed random variables. It is also well known that...
conference paper 2012
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Arnold, M. (author), Negenborn, R.R. (author), Andersson, G. (author), De Schutter, B. (author)
The optimal operation of an integrated electricity and natural gas infrastructure is investigated. The couplings between the electricity system and the gas system are modeled by so-called energy hubs, which represent the interface between the loads on the one hand and the transmission infrastructures on the other. To increase reliability and...
conference paper 2009
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Van den Hof, P.M.J. (author), Jansen, J.D. (author), Van Essen, G.M. (author), Bosgra, O.H. (author)
Due to urgent needs to increase efficiency in oil recovery from subsurface reservoirs new technology is developed that allows more detailed sensing and actuation of multiphase flow properties in oil reservoirs. One of the examples is the controlled injection of water through injection wells with the purpose to displace the oil in an appropriate...
conference paper 2009
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Buob, M.O. (author), Uhlig, S. (author), Meulle, M. (author)
BGP is used today by all Autonomous Systems (AS) in the Internet. Inside each AS, iBGP sessions distribute the external routes among the routers. In large ASs, relying on a fullmesh of iBGP sessions between routers is not scalable, so route-reflection is commonly used. The scalability of route-reflection compared to an iBGP full-mesh comes at...
conference paper
document
Marinescu, O. (author), Bociort, F. (author), Braat, J. (author)
When Extreme Ultraviolet mirror systems having several high-order aspheric surfaces are optimized, the configurations often enter into highly unstable regions of the parameter space. Small changes of system parameters lead then to large changes in ray paths, and therefore optimization algorithms crash because certain sssumptions upon which they...
conference paper 2004
document
Kumar, P. (author), Bauer, P. (author)
conference paper 2007
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