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Heynert, K. (author)In het Getijmodel is nagegaan in welke' mate het systeem van wandkribben op de Nieuwe Waterweg van invloed is op de ruwheids- en mengingsprocessen in het Noordelijk Deltabekken. In de Getijgoot zijn de experimenten vooral gericht op de vertrekkingsinvloeden bij stroming langs kribben en zijn beperkt geometrische parameters gevarieerd. De...master thesis 1987
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- Slob, E.C. (author) doctoral thesis 1994
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- Carmeliet, J. (author), De Borst, R. (author) journal article 1995
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Baas, H.W. (author)Neutron activation analysis is a powerful technique for the determination of trace-element concentrations. Since both neutrons that are used for activation and gamma rays that are detected have a high penetrating power, the technique can be applied for relatively large samples (up to 13 L), as demonstrated by Overwater. This technique resulted...doctoral thesis 2004
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Jorna, P. (author)Electromagnetic field theory plays a very important role in present-day technology; examples of technologies based on electromagnetism that are inextricably bound up with every day life are: radar, remote sensing, geoelectromagnetics, bioelectromagnetics, antennas, wireless communication, optics, high-frequency circuits, and so on. In order to...doctoral thesis 2005
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Sluijter, M. (author), De Boer, D.K.G. (author), Braat, J.J.M. (author)Uniaxial optical anisotropy in the geometrical-optics approach is a classical problem, and most of the theory has been known for at least fifty years. Although the subject appears frequently in the literature, wave propagation through inhomogeneous anisotropic media is rarely addressed. The rapid advances in liquid-crystal lenses call for a good...journal article 2008
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Van den Esker, H. (author), Van der Hofstad, R. (author), Hooghiemstra, G. (author)We generalize the asymptotic behavior of the graph distance between two uniformly chosen nodes in the configuration model to a wide class of random graphs. Among others, this class contains the Poissonian random graph, the expected degree random graph and the generalized random graph (including the classical Erdos-Renyi graph). In the paper we...journal article 2008
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Raghunathan, S.B. (author)In colloidal chemistry, composite (meta)materials, photonics,geophysics and remote sensing, it is often desirable to treat an inhomogeneous object, as a homogeneous with an effective permittivity. At the moment, however, there is no general analytical method which estimates this effective permittivity for an arbitrary finite inhomogeneous...master thesis 2008
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Sluijter, M. (author), De Boer, D.K.G. (author), Urbach, H.P. (author)We present simulations of a novel liquid-crystal-based electro-optical device that enables a switching effect owing to a backreflection phenomenon. In the simulations, we exploit the optical properties of a liquid-crystal layer with a Freédericksz alignment in an unconventional way. The resulting switching effect of the proposed optical design...journal article 2008
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- Sluijter, M. (author), De Boer, D.K.G. (author), Urbach, H.P. (author), Strömer, J. (author), Cennini, G. (author) conference paper 2009
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Sluijter, M. (author), De Boer, D.K.G. (author), Urbach, H.P. (author)Firm evidence of the biaxial nematic phase in liquid crystals, not induced by a magnetic or electric field, has been established only recently. The discovery of these biaxially anisotropic liquid crystals has opened up new areas of both fundamental and applied research. The advances in biaxial liquid crystal-related topics call for a good...journal article 2009
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Haverkort, J.W. (author), Kenjere, S. (author)A comprehensive computational model for simulating magnetic drug targeting was developed and extensively tested in a cylindrical geometry. The efficiency for particle capture in a specific magnetic field and geometry was shown to be dependent on a single dimensionless number. The effect of secondary flows, a non-Newtonian viscosity and...conference paper 2009
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Bakker, M. (author)A new analytic-element solution is presented for a well with a sinusoidal discharge pumping near cylindrical inhomogeneities. Both the transmissivity and the storage coefficient may be different inside each cylinder. The solution consists of separate series solutions inside and outside each cylinder; asymptotic expansions are presented for cases...journal article 2009
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Sluijter, M. (author), Herzog, A. (author), De Boer, D.K.G. (author), Krijn, M.P.C.M. (author), Urbach, P.H. (author)For the first time, to our knowledge, we report ray-tracing simulations of an advanced liquid-crystal gradientindex lens structure for application in switchable two-dimensional/three-dimensional (3D) autostereoscopic displays. We present ray-tracing simulations of the angular-dependent lens action. From the results we conclude that the lens...journal article 2009
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Sluijter, M. (author)When the optical behavior of light in a medium depends on the direction in which light is traveling, the medium is called optically anisotropic. Light is an electromagnetic wave and in this thesis, we discuss the electromagnetic theory on optical anisotropy. We do this with the assumption that the wavelength of light approaches zero. The field...doctoral thesis 2010
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Sluijter, M. (author), Xu, M. (author), Urbach, H.P. (author), De Boer, D.K.G. (author)We study the applicability of geometrical optics to inhomogeneous dielectric nongyrotropic optically anisotropic media typically found in in-plane liquid-crystal configurations with refractive indices no=1.5 and ne=1.7. To this end, we compare the results of advanced ray- and wave-optics simulations of the propagation of an incident plane wave...journal article 2010
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Knoop, V.L. (author), Van Lint, J.W.C. (author), Hoogendoorn, S.P. (author)With current techniques, traffic monitoring and control is a data intensive process. Network control on a higher level, using high level variables, can make this process less data demanding. The macroscopic fundamental diagram relates accumulation, i.e. the number of vehicles in an area, to the network performance, but only holds for situations...conference paper 2011
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Veling, E.J.M. (author)In this article, we describe horizontal groundwater flow due to a uniform flow at infinity around a cylindrical or elliptical inhomogeneity, where the permeability inside the inhomogeneity is anisotropic and different from the isotropic domain outside the inhomogeneity. The orientation of the uniform flow with respect to the orientation of the...journal article 2011
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Wapenaar, C.P.A. (author), Douma, H. (author)The generalized optical theorem is an integral relation for the angle-dependent scattering amplitude of an inhomogeneous scattering object embedded in a homogeneous background. It has been derived separately for several scalar and vectorial wave phenomena. Here a unified optical theorem is derived that encompasses the separate versions for...journal article 2012
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Van Dalen, K.N. (author), Metrikine, A. (author), Tsouvalas, A. (author)Transition radiation is emitted when a perturbation source (e.g., electric charge, mechanical load), which does not possess an inherent frequency, moves along a straight line at a constant velocity in or near an inhomogeneous medium. The phenomenon was described for the first time in electromagnetics, but it is universal from the physical point...conference paper 2014