- document
-
Naeije, W. (author)Workshop Financiënconference paper 2007
- document
-
Van Veen, P. (author)Plenair programmaconference paper 2007
- document
-
Spronck, J. (author), Pereira, S.F. (author), Braat, J.J.M. (author)We show the theoretical limitations of a multi-axial nulling interferometer with respect to longitudinal polarization. We furthermore analyze the filtering capabilities of a single-mode fiber in this case.conference paper 2007
- document
-
Spronck, J. (author), Vosteen, L.L.A. (author), Pereira, S.F. (author), Braat, J.J.M. (author)We present the design of a new testbed experiment to demonstrate nulling interferometry using polarization properties. This three-beam set-up is perfectly symmetric with respect to the number of reflections and transmissions and should therefore allow a high rejection ratio in a wide spectral band.conference paper 2007
- document
-
Jankovic, D. (author)Defining the 'real' shrinkage values of concrete is still a subject of much debate. In shrinkage experiments size effects are inherently present. Through an attempt to determine the real shrinkage of cement-based materials, these size effects have to be eliminated or at least reduced as much a possible. In this contribution drying shrinkage...conference paper 2007
- document
-
Ockels, W.J. (author)From his personal experience during a space flight (Challenger 1985) onward, the author has been struck repeatedly by the remarkable influence of Earth's environment on life, in particular by its most inevitable elements: time and gravity. Our life might be peculiar to the local Earth conditions, and not cosmic per se. In this article the...conference paper 2007
- document
-
Duong, H. (author), Lindenbergh, R. (author), Pfeifer, N. (author), Vosselman, G. (author)Since 2003 the spaceborne laser altimetry system on board of NASA’s Ice, Cloud and land Elevation Satellite (ICESat) has acquired a large world-wide database of full waveform data organized in 15 products. In this research three products are evaluated over The Netherlands. For this purpose the raw full waveform product, the derived Gaussian...conference paper 2007
- document
-
Khoshelham, K. (author)Automated detection and 3D modelling of objects in laser range data is of great importance in many applications. Existing approaches to object detection in range data are limited to either 2.5D data (e.g. range images) or simple objects with a parametric form (e.g. spheres). This paper describes a new approach to the detection of 3D objects with...conference paper 2007
- document
-
Van der Vegte, W.F. (author), Horváth, I. (author)The approach described in this paper aims to offer designers a new way to investigate use processes of products by integrating scenarios of expected user behaviour with simulations of physical artefact behaviour. Use is considered a key process in the life cycle of a product, being the phase in which an instance of a product is put into service...conference paper 2007
- document
-
Van Turnhout, M. (author), Bociort, F. (author)Local optimization algorithms, when they are optimized only for speed, have in certain situations an unpredictable behavior: starting points very close to each other lead after optimization to different minima. In these cases, the sets of points, which, when chosen as starting points for local optimization, lead to the same minimum (the so...conference paper 2007
- document
-
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
- document
-
Lam, N.T. (author), Stive, M.J.F. (author), Verhagen, H.J. (author), Wang, Z.B. (author)Morphodynamics of a tidal inlet system on a micro-tidal coast in a tropical monsoon influenced region is modeled and discussed. Effects of tides, waves, river flows and system configuration on the inlet morphologies are investigated with the aid of process-based state-of-the-art numerical models. Seasonal and episodic behavior of the inlet...conference paper 2007
- document
-
Lua, E.K. (author), Zhou, X. (author)Peer-to-Peer (P2P) overlay networks can be utilized to deploy massive Internet overlay services such as multicast, content distribution, file sharing, etc. efficiently without any underlying network support. The crucial step to meet this objective is to design network-aware overlay network topologies connecting all nodes that offer promising...conference paper 2007
- document
-
Durmisevic, S. (author), Ciftcioglu, O. (author)One building is more flexible in terms of use than the other and to determine how much a building ‘X’ is more flexible than a building ‘Y’ is a rather complex task. This research focuses on houses for the elderly in terms of future use, since the requirements have changed and many of the existing buildings do not meet new requirements. To asses...conference paper 2007
- document
-
Williams, P. (author), Lansdorp, B. (author), Ockels, W. (author)Non-powered flight vehicles such as kites can provide a means of transmitting wind energy from higher altitudes to the ground via tethers. Although there have been many proposals for systems to extract wind energy from higher altitudes, this paper focuses on the use of a light lifting body at the end of a tether to generate useful power. Two...conference paper 2007
- document
-
Knoop, V.L. (author), Snelder, M. (author), Van Zuylen, H.J. (author)Much of the delay in transport networks is caused by incidents. Many indicators are developed to determine vulnerable parts of a network without simulating the network flows with an incident on each of the links. This paper lists indicators proposed in literature and cross compares them. Their values for all links on three networks of different...conference paper 2007
- document
-
Hulskamp, A.W. (author), Beukers, A. (author), Bersee, H.E.N. (author), Van Wingerden, J.W. (author), Barlas, T. (author)Within wind energy research there is a drive towards the development of a “smart rotor”; a rotor of which the loading can be measured and controlled through the application of a sensor system, a control system and an aerodynamic device. Most promising solutions from an aerodynamic point of view are trailing edge flaps, either hinged or...conference paper 2007
- document
-
Louwersheimer, W.F. (author), Verhagen, H.J. (author), Olthof, J. (author)During the construction of the first Dutch offshore wind farm prototype measurements were performed. These measurements were aimed to monitor the behaviour of the granular filter layer of the scour protection around the mono-piles upon which the wind turbines are founded. These measurements were compared to scale model test results and...conference paper 2007
- document
-
Heineke, D. (author), Verhagen, H.J. (author)To assess the hydraulic performance of coastal structures - viz. wave run-up, overtopping and reflection - and to evaluate the stability of the armour layers, use is made of the dimensionless surf similarity parameter, as introduced by Battjes (1974). The front side slope of the structure and the wave steepness are combined in this parameter,...conference paper 2007
- document
-
Houwing, M. (author), Negenborn, R.R. (author), Heijnen, P.W. (author), De Schutter, B. (author), Hellendoorn, H. (author)With an increasing use of distributed energy resources and intelligence in the electricity infrastructure, the possibilities for minimizing costs of household energy consumption increase. Technology is moving toward a situation in which households manage their own energy generation and consumption, possibly in cooperation with each other. As a...conference paper 2007