Searched for: subject%3A%22Shape%22
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Bronkhorst, A.J. (author), Moretti, D. (author), Geurts, C.P.W. (author)
This paper describes the application of the Frequency Domain Decomposition (FDD) technique on measured acceleration data on the residential tower New Orleans in Rotterdam, the Netherlands. The goal of this study is to determine and analyse multiple natural frequencies and mode shapes of this tower. A measurement campaign was setup on the 158 m...
conference paper 2023
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van Hateren, J.A. (author), Kasse, C. (author), van der Woude, J. (author), Schokker, J. (author), Prins, M.A. (author), van Balen, R.T. (author)
Aeolian deposits form rich archives of climatic and environmental changes, which have not been fully explored. In this study, results from end-member modelling of grain size-shape distributions were combined with palynological records to reconstruct sedimentary environments and transport mechanisms, and to distinguish climatically-caused from...
article 2022
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Bronkhorst, A.J. (author), Moretti, D. (author), Geeurts, C.P.W. (author)
conference paper 2021
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de Gelder, E. (author), Cator, E. (author), Paardekooper, J.P. (author), op den Camp, O.M.G.C. (author), de Schutter, B. (author)
The safety assessment of Automated Vehicles (AVs) is an important aspect of the development cycle of AVs. A scenario-based assessment approach is accepted by many players in the field as part of the complete safety assessment. A scenario is a representation of a situation on the road to which the AV needs to respond appropriately. One way to...
conference paper 2021
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van Buuren, U. (author), Prins, M.A. (author), Wang, X. (author), Stange, M. (author), Yang, X. (author), van Balen, R.T. (author)
This study is focused on a silty clayey sedimentary sequence on a terrace in the intramontane Hanzhong Basin, located in the Qinling Mountains (QLM), central China. Traditionally, the QLM are considered to have blocked dust transport from northwest to southeast China. However, in recent years, geo-archaeological studies have documented loess...
article 2020
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Kittelson, A. (author), Elings, J. (author), Colborn, K. (author), Hoogeboom, T.J. (author), Christensen, J.C. (author), van Meeteren, N.L.U. (author), van Buuren, S. (author), Stevens-Lapsley, J.E. (author)
Background: Clinicians and patients lack an evidence-based framework by which to judge individual-level recovery following total knee arthroplasty (TKA) surgery, thus impeding personalized treatment approaches for this elective surgery. Our study aimed to develop and validate a reference chart for monitoring recovery of knee flexion following...
article 2020
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Klomp, D.J. (author), Hulsen, M.A. (author), Anderson, P.D. (author)
article 2020
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Peng, F. (author), Prins, M.A. (author), Kasse, C. (author), Cohen, K.M. (author), van der Putten, N. (author), van der Lubbe, J. (author), Toonen, W.H.J. (author), van Balen, R.T. (author)
This study investigates Holocene floodplain evolution and flooding phases as experienced in the Lower Meuse catchment, primarily based on grain-size distributions of channel-fill and floodplain deposits in sediment cores. The presence of post-depositional Fe[sbnd]Mn concretions and resistant organic particulate materials impedes the direct use...
article 2019
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Yepes, C. (author), Neto, A. (author), Cavallo, D. (author), Gandini, E. (author), van Vliet, F.E. (author), Monni, S. (author)
We present the design of an array of tilted dipoles loaded with artificial dielectrics, to achieve asymmetric radiation patterns. First, a simplified array element consisting of skewed stacked dipoles in the presence of a backing reflector is studied, by means of a dedicated spectral periodic method of moments (MoM). The analysis of the stacked...
conference paper 2019
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Yepes, C. (author), Gandini, E. (author), Monni, S. (author), van Vliet, F.E. (author), Neto, A. (author), Cavallo, D. (author)
In this work, we present a study on the radiation and impedance properties of antenna arrays with tilted elements. We developed a spectral method of moments (MoM) for the analysis of doubly-periodic arrays with arbitrarily tilted dipole or stacked dipole elements, in free space or in the presence of a backing reflector. By using this analysis...
conference paper 2019
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Yang, X. (author), Wang, X. (author), van Balen, R.T. (author), Prins, M.A. (author), Wang, S. (author), van Buuren, U. (author), Lu, H. (author)
The Qinling Mountains (QLM) form the climatic boundary between the temperate north and subtropical south of China. Many important Paleolithic archaeological sites located on fluvial terraces in this area have been reported in recent decades. Abundant artifacts have been excavated in silt layers overlying fluvial gravels and coarse sands. These...
article 2019
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Yepes, C. (author), Van Schelven, R. (author), Cavallo, D. (author), Gandini, E. (author), Neto, A. (author)
In this work we present a study to determine the parameters affecting the power radiated in specific directions by antenna arrays with tilted elements. We developed an efficient Method of Moments for the analysis of linear arrays with arbitrarily tilted dipole elements, in free space or in the presence of a backing reflector. By using this...
conference paper 2018
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Nijenhuis, J.R. (author), Braam, B.C. (author), Hamelinck, R.F.M.M. (author)
The mirror segments for the E-ELT and TLT are nearly equal in size and shape (hexagonal, 1.2 m over flat sides). They are very thin (about 50 mm) compared to their size. Supporting these mirrors and obtaining high optical performance is a challenge from design and manufacturing point of view. TNO has designed and build (together with VDL-ETG)...
conference paper 2016
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de Jong, R. (author), van Buuren, S. (author), Spiess, M. (author)
The sensitivity of multiple imputation methods to deviations from their distributional assumptions is investigated using simulations, where the parameters of scientific interest are the coefficients of a linear regression model, and values in predictor variables are missing at random. The performance of a newly proposed imputation method based...
article 2016
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Elfring, J. (author), Appeldoorn, R. (author), Kwakkernaat, M. (author)
This work focuses on vehicle automation applications that require both the estimation of kinematic and geometric information of surrounding vehicles, e.g., automated overtaking or merging. Rather then using one sensor that is able to estimate a vehicle's geometry from each sensor frame, e.g., a lidar, a multisensor simultaneous vehicle tracking...
conference paper 2016
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Witteveen, J.A.S. (author), Shoeibi Omrani, P. (author), Mariotti, A. (author), Salvetti, M.V. (author)
Uncertainty plays a significant role in the Benchmark on the Aerodynamics of a Rectangular Cylinder (BARC) with a chord-to-depth ratio of 5. In particular, besides modeling uncertainties and numerical errors, in numerical simulations it is difficult to exactly reproduce the experimental conditions due to uncertainties in the set up parameters,...
conference paper 2015
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Hommen, G. (author), de Baar, M. (author), Duval, B.P. (author), Andrebe, Y. (author), Le, H.B. (author), Klop, M.A. (author), Doelman, N.J. (author), Witvoet, G. (author), Steinbuch, M. (author)
A dual, high speed, real-time visible light camera setup was installed on the TCV tokamak to reconstruct optically and in real-time the plasma boundary shape. Localized light emission from the plasma boundary in tangential view, broadband visible images results in clearly resolved boundary edge-features. These projected features are detected in...
article 2014
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Azzopardi, G. (author), Petkov, N. (author)
The primate visual system has an impressive ability to generalize and to discriminate between numerous objects and it is robust to many geometrical transformations as well as lighting conditions. The study of the visual system has been an active reasearch field in neuropysiology for more than half a century. The construction of computational...
bookPart 2014
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Henken, K.R. (author), Dankelman, J. (author), van den Dobbelsteen, J.J. (author), Cheng, L.K. (author), van der Heiden, M.S. (author)
article 2014
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Azzopardi, G. (author), Petkov, N. (author)
The remarkable abilities of the primate visual system have inspired the construction of computational models of some visual neurons. We propose a trainable hierarchical object recognition model, which we call S-COSFIRE (S stands for Shape and COSFIRE stands for Combination Of Shifted FIlter REsponses) and use it to localize and recognize objects...
article 2014
Searched for: subject%3A%22Shape%22
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