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Hinnen, K.J.G. (author)Adaptive optics (AO) is a technique to actively correct the wavefront distortions introduced in a light beam as it propagates through a turbulent medium. Nowadays, it is commonly applied in ground-based telescopes to counteract the devastating effect of atmospheric turbulence. This thesis focuses on the control aspects of AO. Whereas most AO...doctoral thesis 2007
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Honnorat, M. (author), Monnier, J. (author), Le Dimet, F-X. (author)We present a method to use lagrangian data from remote sensing observation in a data assimilation process for parameters identification in a river hydraulics model based on the bidimensional shallow water equations. The trajectories of particles advected by the flow can be extracted from video images and are used in addition to classical...conference paper 2006
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Moon, Y.J. (author), Bae, Y.M. (author), Cho, M.H. (author)In the present study, aerodynamic noise from a forward-facing step is numerically investigated for Reynolds number based on the step height, Reh=8,000 and flow Mach number, M=0.03. A three-dimensional flow over the forward-facing step is calculated by the incompressible large eddy simulation (LES), while its acoustic field is solved by the...conference paper 2006
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- Douma, S.G. (author) doctoral thesis 2006
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Amisigo, B.A. (author)In this thesis, a riverflow modelling framework developed for monthly riverflow prediction in the 400,000 km2 Volta Basin of West Africa is presented. By analysing available catchment rainfall, runoff and potential evapotranspiration series in the basin using methods such as correlation plots, autoregressive (AR) and autoregressive with...doctoral thesis 2006
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Doets, P.J.O. (author), Menot Gisbert, M. (author), Lagendijk, R.L. (author)Audio fingerprints can be seen as hashes of the perceptual content of an audio excerpt. Applications include linking metadata to unlabeled audio, watermark support, and broadcast monitoring. Existing systems identify a song by comparing its fingerprint to pre-computed fingerprints in a database. Small changes of the audio induce small...conference paper 2006
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Parikesit, G.O.F. (author), Kutchoukov, V.G. (author), Bossche, A. (author), Young, I.T. (author), Garini, Y. (author)We report on the progress of a novel nanofluidic device for detecting and manipulating single molecules in solution. This paper discusses the development of an earlier proposed molecule separation method, where electrokinetic forces separate different molecules based on their masses and charges. Optical imaging using confocal microscopy is...conference paper 2005
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Roth, F. (author)This thesis presents new developments in the area of target identification with ground penetrating radar (GPR) intended for the identification of plastic and metal cased antipersonnel (AP) landmines from a single measured GPR return signal, called A-scan. The target identification is formulated as a deconvolution problem. As such, the measured...doctoral thesis 2005
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De Vlugt, E. (author)Visco-elasticity of joints is important for the maintenance of the human body posture and can in two manners be regulated. By means of cocontraction of antagonistic muscle groups and by neural reflexive feedback of muscle length and muscle strength, measured both by means of sensors in the muscles. The impact of the reflexive regulation is...doctoral thesis 2004
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Schouten, A.C. (author)Proprioceptive reflexes play an important role during the control of movement and posture. Disturbed modulation of proprioceptive reflexes is often suggested as the cause for the motoric features present in neurological disorders. In this thesis methods are developed and evaluated to quantify proprioceptive reflexes in vivo during postural...doctoral thesis 2004
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Geers, L.F.G. (author)Because of their high efficiency and their ability to provide high heat transfer rates, impinging jets are applied for rapid cooling and heating in a wide variety of industrial processes. However, the physical phenomena controlling the heat transfer from impinging jets are to a large degree unknown. The goal of the present project was to gain a...doctoral thesis 2004
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Van Staveren, W.H.J.J. (author)The response of aircraft to stochastic atmospheric turbulence plays an important role in aircraft-design (load calculations), Flight Control System (FCS) design and flight-simulation (handling qualities research and pilot training). In order to simulate these aircraft responses, an accurate mathematical model is required. Two classical models...doctoral thesis 2003
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- Yu, X. (author) doctoral thesis 1996
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- Sillevis Smitt, W.W. (author), Bruggeman, B. (author) conference paper 1996
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- Van der Klauw, A.C. (author) doctoral thesis 1995
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- Hakvoort, R.G. (author) doctoral thesis 1994
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- De Vries, D.K. (author) doctoral thesis 1994
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- Bongers, P.M.M. (author) doctoral thesis 1994
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Ellenbroek, M.H.M. (author), de Boer, A. (author)Fokker Space and Systems and the National Aerospace Laboratory NLR performed a study to integrate more systematically the experimental and analytical analysis of the dynamic behaviour of structures. The study focused on the correlation of experimental and analytical data, matrix and parameter updating methods. In this paper an overview will be...report 1993
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- Schrama, R.J.P. (author) doctoral thesis 1992