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van der Aa, P. (author), Manie, J. (author)Finite element analysis (FEA) can be used to design structures. Methods for linear and nonlinear FEA are applied to all kinds of geometries. A simplified geometry structure, or basic element type, sometimes does take into account all the necessary effects for the design purposes. In other analyses more advanced modelling is absolutely necessary....conference paper 2017
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- Neumann, N. (author), Phillipson, F. (author) conference paper 2017
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- Karimzadeh, M. (author), Valtulina, L. (author), van den Berg, H. (author), Pras, A. (author), Liebsch, M. (author), Taleb, T. (author) conference paper 2017
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Sequeira, L. (author), de la Cruz, J.L. (author), Ruiz-Mas, J. (author), Saldana, J. (author), Fernandez-Navajas, J. (author), Almodovar, J. (author)In this letter, the development and testing of an open enterprise Wi-Fi solution based on virtual access points (APs), managed by a central WLAN controller is presented. It allows seamless handovers between APs in different channels, maintaining the QoS of real-time services. The potential scalability issues associated to the beacon generation...article 2017
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Wetzels, F. (author), van den Berg, H. (author), Bosman, J. (author), van der Mei, R. (author)Pre-congestion notification (PCN) protects inelastic traffic by using feedback on network link loads on and acting upon this accordingly. These actions comprise to admission control and termination of flows. Two PCN architectures have been defined by IETF: the centralized and decentralized PCN architecture. The decentralized PCN architecture has...article 2017
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Saldana, J. (author), Ruiz-Mas, J. (author), Almodovar, C.J.L. (author)Frame aggregation is widely used in 802.11 WLANs in order to provide a significant throughput improvement. However, the latency increase that comes as a counterpart can reduce the quality experienced by the users of applications with real-time constraints. This letter explores the throughput versus latency tradeoff in the context of central...article 2017
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Soer, M.C.M. (author), Klumperink, E.A.M. (author), van den Broek, D.J. (author), Nauta, B. (author), van Vliet, F.E. (author)Spatial interference rejection in analog adaptive beamforming receivers can improve the distortion performance of the circuits following the beamforming network, but is susceptible to the nonlinearity of the beamforming network itself. This paper presents an analysis of intermodulation product cancellation in analog active phased array receivers...article 2017
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Fioletov, V. (author), McLinden, C.A. (author), Kharol, S.K. (author), Krotkov, N.A. (author), Li, C. (author), Joiner, J. (author), Moran, M.D. (author), Vet, R. (author), Visschedijk, A.J.H. (author), Denier Van Der Gon, H.A.C. (author)Reported sulfur dioxide (SO2) emissions from US and Canadian sources have declined dramatically since the 1990s as a result of emission control measures. Observations from the Ozone Monitoring Instrument (OMI) on NASA's Aura satellite and ground-based in situ measurements are examined to verify whether the observed changes from SO2 abundance...article 2017
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Behrouzian, A.R.B. (author), Goswami, D. (author), Geilen, M. (author), Hendriks, M. (author), Alizadeh Ara, H. (author), van Horssen, E.P. (author), Heemels, W.P.M.H. (author), Basten, T. (author)This paper proposes methods for verification of (m, k)-firmness properties of control applications running on a shared TDMA-scheduled processor. We particularly consider dropped samples arising from processor sharing. Based on the available processor budget for any sample that is ready for execution, the Finite-Point (FP) method is proposed for...conference paper 2016
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Nepveu, M. (author), van Thienen-Visser, K. (author), Sijacic, D. (author)Depletion of gas fields, even in a tectonically inactive area can induce earthquakes.article 2016
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Witvoet, G. (author), Human, J.D. (author), Maniscalco, M.P. (author)An active tilt mirror mechanism, meant for correction of the constellation breathing of the evolved Laser Interferometer Space Antenna, has been designed and realized. Its open-loop performance has been characterized in both time and frequency domain. Based on this, a feedback controller has been designed and the resulting closed-loop...conference paper 2016
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Verneau, M. (author), van der Kamp, J. (author), de Looze, M.P. (author), Savelsbergh, G.J.P. (author)We examined the effects of age on automatic and voluntary motor adjustments in pointing tasks. To this end, young (20–25 years) and middle-aged adults (48–62 years) were instructed to point at a target that could unexpectedly change its location (to the left or right) or its color (to green or red) during the movement. In the location change...article 2016
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Hofman, W.J. (author), Punter, L.M. (author), Bastiaansen, H.J.M. (author), Cornelisse, E. (author), Dalmolen, S. (author), Palaskas, Z. (author), Karakostas, B. (author), Gato, J. (author), Garcia, J. (author), Herrero, G. (author), Gonzalez-Rodrigues, M. (author)To meet the challenges for more sustainable, effective and efficient transport services in global logistics, a new IT-paradigm is needed to harvest the opportunities that capabilities for situation awareness and real-time chain composition provide. The iCargo project provides such an advanced, highly distributed, IT infrastructure with, as...article 2016
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Ammerlaan, B.A.J. (author), Jedynska, A.D. (author), Henzing, J.S. (author), Holzinger, R. (author)We present results that demonstrate a possible bias in the fractioning of total carbon (TC) into elemental carbon (EC) and organic carbon (OC) for measurements with the Sunset Laboratory Inc. Thermal/Optical Carbon Aerosol Analyser. The bias is caused by an unstable laser transmission signal. The transmission signal during the analysis of an...article 2015
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Koster, S. (author), Leeman, W.R. (author), Verheij, E.R. (author), Dutman, A.E. (author), van Stee, L.L.P. (author), Munch Nielsen, L. (author), Ronsmans, S. (author), Noteborn, H. (author), Krul, L. (author)A main challenge in food safety research is to demonstrate that processing of foodstuffs does not lead to the formation of substances for which the safety upon consumption might be questioned. This is especially so since food is a complex matrix in which the analytical detection of substances, and consequent risk assessment thereof, is difficult...article 2015
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Fokker, P.A. (author), van Thienen-Visser, K. (author)Surface movement data can be used in data assimilation or inversion exercises to improve the level of knowledge of a compacting reservoir. We have designed, implemented and tested a new algorithm that uses measured optical height differences directly, without having to translate them to heights with regard to a geodetic reference level. This way...conference paper 2015
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Jacobs, S. (author), Bekers, D. (author), Monni, S. (author), Otten, M. (author), Van Rossum, W. (author), Gerini, G. (author), Germani, C. (author), Fortini, D. (author), Toso, G. (author)This contribution addresses the problem of designing a sparse active array antenna for spaceborne SAR applications at Ka-band. The main driver for the design is limiting the recurring manufacturing costs associated to the number of active modules, while preserving main performance and insuring a certain level of industrial feasibility. A sparse...conference paper 2015
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Altazin, S. (author), Reynaud, C. (author), Mayer, U.M. (author), Lanz, T. (author), Lapagna, K. (author), Knaack, R. (author), Peninck, L. (author), Kirsch, C. (author), Pernstich, K.P. (author), Harkema, S. (author), Hermes, D. (author), Ruhstaller, B. (author)A multi-scale optical model for organic light-emitting devices containing scattering layers is presented. This model describes the radiation of embedded oscillating dipoles and scattering from spherical particles. After successful model validation with experiments on a top-emitting white OLED, we show how this tool can be used for optimization...article 2015
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Raiten, D.J. (author), Sakr Ashour, F.A. (author), Ross, A.C. (author), Meydani, S.N. (author), Dawson, H.D. (author), Stephensen, C.B. (author), Brabin, B.J. (author), Suchdev, P.S. (author), van Ommen, B. (author), Ahluwalia, N. (author), Ahmed, T. (author), Allen, L. (author), Beck, M. (author), Blanchard, H. (author), Brindle, E. (author), Brown, K. (author), Calder, P. (author), Checkley, W. (author), Claycombe, K. (author), Coles, C. (author), Esamai, F. (author), Friis, H. (author), Gardner, E. (author), Grinspoon, S. (author), Guerrant, R. (author), Hellerstein, M. (author), Hunt, J. (author), King, J. (author), Klasing, K. (author), Kramer, B. (author), Koski, K. (author), Northrop-Clewes, C. (author), Pfeiffer, C. (author), Prentice, A. (author), Ramirez-Zea, M. (author), van Rheenan, P. (author), Rink, L. (author), Srinivasa, S. (author), Benn, C.S. (author), Stephensen, C. (author), Suchdev, P. (author), Sullivan, K. (author), Thurnham, D. (author), Varadhan, R. (author), Van Der Ven, A. (author), Walston, J. (author), Xia, J. (author)An increasing recognition has emerged of the complexities of the global health agenda-specifically, the collision of infections and noncommunicable diseases and the dual burden of over- and undernutrition. Of particular practical concern are both 1) the need for a better understanding of the bidirectional relations between nutritional status and...article 2015
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Brown, J.I. (author), Koç, Y. (author), Kooij, R.E. (author)Given a finite, undirected graph G (possibly with multiple edges), we assume that the vertices are operational, but the edges are each independently operational with probability p. The (all-terminal) reliability, Rel(G,p), of G is the probability that the spanning subgraph of operational edges is connected. It has been conjectured that...article 2014