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Cavallo, D. (author), Gerini, G. (author), Bolt, R.J. (author), Deurloo, D. (author), Grooters, R. (author), Neto, A. (author), Toso, G. (author), Midthassel, R. (author)We present a Ku-band dual-polarized phased array demonstrator for satellite communications. The prototype array is composed by 512 connected-dipole elements, 16x16 for each polarization, arranged in an egg-crate configuration. A loop-shaped feed structure is used to maintain good polarization purity for beam scanning up to 60 degrees in any...conference paper 2013
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Nabi, M. (author), Geilen, M.M.C.W. (author), Basten, T.A.A. (author)Sensor nodes in many Wireless Body Area Network (WBAN) architectures are supposed to deliver sensed data to a gateway node on the body. To satisfy the data delivery requirements, the network needs to adapt itself to the changes in connection status of the body nodes to the gateway. As a prerequisite, Link Quality Estimation (LQE) needs to be...conference paper 2013
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Cavallo, D. (author), Neto, A. (author), Gerini, G. (author), Micco, A. (author), Galdi, V. (author)A wideband, wide-scan phased array of connected dipoles has been designed and fabricated. Measured results from a 7 7 prototype demonstrator are presented for experimental validation. In order to avoid common-mode resonances that typically affect this type of array, loop-shaped transformers are included in the feed network. The common-mode...article 2013
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Pijpers, R. (author), Kolstein, H. (author), Bijlaard, F. (author)An effective application of Very High Strength Steels (VHSS) can be expected in truss-like structures, typically made of hollow sections. Improved design of VHSS truss structures could incorporate the application of cast joints, since an appropriate design of cast joints limits the stress concentrations in the joint and welds are shifted out of...conference paper 2013
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Makkes, M.X. (author), Taal, A. (author), Osseyran, A. (author), Grosso, P. (author)Cloud computing gives users much freedom on where they host their computation and storage. However the CO2 emission of a job depends on the location and the energy efficiency of the data centers where it is run. We developed a decision framework that determines to move computation with accompanying data from a local to a greener remote data...article 2013
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Hettne, K.M. (author), Boorsma, A. (author), van Dartel, D.A.M. (author), Goeman, J.J. (author), de Jong, E. (author), Piersma, A.H. (author), Stierum, R.H. (author), Kleinjans, J.C. (author), Kors, J.A. (author)Background: Availability of chemical response-specific lists of genes (gene sets) for pharmacological and/or toxic effect prediction for compounds is limited. We hypothesize that more gene sets can be created by next-generation text mining (next-gen TM), and that these can be used with gene set analysis (GSA) methods for chemical treatment...article 2013
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van Noort, M. (author), Versteegh, T. (author), Tideman, M. (author)The development of intelligent in-car systems and connected vehicle systems is of major concern to the automotive industry. These systems need to function properly in a vast amount of different traffic scenarios, which involves interaction with other traffic actors, both human and technical, in a large area around the vehicle. This poses a...conference paper 2012
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Steenbergen, R.D.J.M. (author), Maljaars, J. (author), Morales Nápoles, O. (author), Abspoel, L. (author)Existing civil infrastructure represents a large economic value. Within the actions applied to the bridges, the traffic load is, in general, the most significant variable action to be considered when the ultimate limit states are under investigation. Consequently, the traffic load models play an important role in the design of new bridges but...conference paper 2012
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Cavallo, D. (author), Neto, A. (author), Gerini, G. (author)Wideband arrays of printed dipoles with inter-element loads are investigated. A closed-form expression for the active input impedance of the array element is derived with a spectral domain approach. The procedure is based on an extension of the Green's function formulation for arrays of connected dipoles to the case of dipoles coupled via loads....article 2012
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Hemizygous deletion of CTGF/CCN2 does not suffice to prevent fibrosis of the severely injured kidneyFalke, L.L. (author), Dendooven, A. (author), Leeuwis, J.W. (author), Nguyen, T.Q. (author), van Geest, R.J. (author), van der Giezen, D.M. (author), Broekhuizen, R. (author), Lyons, K. (author), Stoop, R. (author), Kemperman, H. (author), Schlingemann, R. (author), Joles, J.A. (author), Goldschmeding, R. (author)Background: Connective Tissue Growth Factor (CTGF/CCN2) is an important mediator of kidney fibrosis. Previous observations indicated that attenuation of CCN2 expression sufficed to alleviate early kidney damage. However, little is known about the role of CCN2 in fibrosis of severely damaged and more chronically injured kidneys. Therefore, we...article 2012
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Constantinescu, M. (author), Bouwman, H. (author), Djurica, M. (author), Durmus, Y. (author), Onur, E. (author), de Reuver, M. (author)We propose an analysis of cooperation for data sharing and the behavioral aspects involved in the process of decision making. Starting with the tethering capabilities of recent devices we apply game theoretical principles and models, inquire what makes the cooperation work, and what are the economical implications required to build a cooperative...conference paper 2012
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van Meerkerk, I. (author), Edelenbos, J. (author), Klijn, E.H. (author)The relationship between network management, network performances, and democratic legitimacy is a highly debated issue. In this article, we explore this relationship theoretically. Building on the literature, we expect to find that democratic throughput legitimacy has a partly mediating role in the relationship between connective network...other 2012
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Neto, A. (author), Cavallo, D. (author), Gerini, G. (author)This paper presents a Green's function based procedure to assess edge effects in finite wideband connected arrays. Truncation effects are more severe in broadband arrays, since the inter-element mutual coupling facilitates the propagation of edge-born waves that can become dominant over large portions of the arrays. As a consequence, the overall...conference paper 2011
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Neto, A. (author), Cavallo, D. (author), Gerini, G. (author)Connected arrays constitute one of the most promising options for wideband phased arrays. Like most phased arrays, they are designed using infinite array theory. However, when finiteness is included, edge effects perturb their behavior. These effects are more severe when the arrays are designed to operate over very broad frequency ranges, since...article 2011
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Voigt, D. (author), Ellis, J.D. (author), Verlaan, A.L. (author), Bergmans, R.H. (author), Spronck, J.W. (author), Schmidt, R.H.M. (author)High-end industrial equipment evolves toward ever higher accuracies, and dimensional drift phenomena appear as a limitation for the required uncertainty level of precision metrology instrumentation. Detailed knowledge of the drift stability on timescales from minutes to weeks is needed for materials and constructional elements such as glued or...article 2011
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Brown, J.I. (author), Koç, Y. (author), Kooij, R.E. (author)In this paper we study all-terminal reliability polynomials of networks having the same number of nodes and the same number of links. First we show that the smallest possible size for a pair of networks that allows for two crossings of their reliability polynomials have seven nodes and fifteen edges. Then we propose a construction of pairs of...conference paper 2011
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Neto, A. (author), Cavallo, D. (author), Gerini, G. (author)Most phased arrays are designed using infinite array theory, which does not account for edge effects. However, this approximation might not be adequate for the design of wideband arrays, for which truncation effects are more significant than in traditional narrow-band arrays. In particular, edge effects can be very severe in broadband connected...conference paper 2011
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Cavallo, D. (author), Neto, A. (author), Gerini, G. (author)Connected arrays constitute the only family of antenna arrays for which the spectral Green's Functions have been derived analytically. This formalism is extended here to the receiving case. When the arrays are assumed to be infinitely extended and periodically excited, rigorous equivalent networks can be derived to represent the electromagnetic...article 2011
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- Pijpers, R.J.M. (author) doctoral thesis 2011
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Risto, M. (author), Martens, M.H. (author)Connected Cruise Control (CCC) aims to improve throughput in dense commuter traffic on motorways by advising drivers on speed, headway and lane-use via a nomadic human-machine interface. The advice is generated from a prediction of future traffic flow, based on actual traffic-loop data and is transmitted to the in-car platform via 3.5G...conference paper 2011