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Korevaar, C.W. (author), Boschma, J.J. (author), den Breeje, R. (author), Ebert, J. (author)Optical feeder links (OFLs) benefit from the vast amount of bandwidth available in the THz-regime of the electro-magnetic spectrum, and could enable future terabit-per-second satellite systems. This study assesses the end-to-end performance of analog coherent OFLs for digital video broadcasting (DVB) applications, employing phase modulation (PM)...conference paper 2022
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Kudla, T. (author), Fogli, M. (author), Webb, S. (author), Pingen, G. (author), Suri, N. (author), Bastiaansen, H.J.M. (author)Kubernetes is the de facto industry standard for orchestrating containerized applications in clouds. Performance analyses of Kubernetes are often conducted in resource-rich environments on the enterprise or data center level. At the tactical edge domain, network resources are scarce and therefore at the opposite end of the spectrum when compared...article 2022
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Kudla, T. (author), Fogli, M. (author), Webb, S. (author), Pingen, G.L.J. (author), Suri, N. (author), Bastiaansen, H.J.M. (author)Kubernetes is the de facto industry standard for orchestrating containerized applications in clouds. Performance analyses of Kubernetes are often conducted in resource-rich environments on the enterprise or data center level. At the tactical edge domain, network resources are scarce and therefore at the opposite end of the spectrum when compared...article 2022
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van der Sanden, B. (author), Geilen, M. (author), Reniers, M. (author), Basten, T. (author)A key challenge in the synthesis and subsequent analysis of supervisory controllers is the impact of state-space explosion caused by concurrency. The main bottleneck is often the memory needed to store the composition of plant and requirement automata and the resulting supervisor. Partial-order reduction (POR) is a well-established technique...article 2022
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Saffre, F. (author), Hildmann, H. (author), Karvonen, H. (author), Lind, T. (author)Machine-based situational awareness is a key element to conscious and intelligent interaction with the complex world we live in, be it for the individual unit, a complex dynamical system, or even complex systems. To create this awareness, the frequent gathering of accurate and real-time intelligence data is required to ensure timely, accurate,...conference paper 2021
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Munsters, C.C.B.M. (author), Kingma, B.R.M. (author), van den Broek, J. (author), Sloet van Oldruitenborgh-Oosterbaan, M.M. (author)In human sport science, the acute:chronic workload (ACWR) ratio is used to monitor an athlete's preparedness for competition and to assess injury risks. The aim of this study was to investigate whether acute and chronic workload calculations for external and internal loads (e.g. high-speed work distance and associated exertional effort) were...article 2020
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- Geilen, M.C.W. (author), Skelin, M. (author), van Kampenhout, J.R. (author), Ara, H.A. (author), Basten, T. (author), Stuijk, S. (author), Goossens, K.G.W. (author) bookPart 2020
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Verlaan, A.L. (author), Giesen, P.T.M. (author), van Grol, P. (author), Limpens, M. (author), Heijmans, J.A.C. (author), Visser, H. (author), Vink, H.J.P. (author), Maniscalco, M.P. (author), Verhoeff, P. (author), O'Neill, R. (author), Smith, M. (author), Stratton, B. (author), Gattuso, A. (author), Smiley, M. (author), Lasnier, C.J. (author), Feder, R. (author), Vasquez, J. (author), LeSher, M. (author)The Upper port Wide Angle Viewing System (UWAVS) is diagnostic system that provides visible light and InfraRed images of the divertor area in the ITER tokamak. The main functions of the UWAVS are to provide divertor wall and plasma luminance and temperature distributions at high spatial resolution (3–5 mm) and frame rates (500–1000 Hz) for...article 2018
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Zondag, H.A. (author), de Boer, R. (author), Smeding, S.F. (author), van der Kamp, J. (author)A 140 l lab scale shell-and-tube PCM heat storage was built and tested, and the experimental results were compared to a numerical model. Natural convection in the PCM was found to significantly influence the local temperature distribution in the storage vessel, which could not be predicted well by the model, since the model assumes only...article 2018
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Leemans, M. (author), van der Aalst, W.M.P. (author), van den Brand, M.G.J. (author), Schiffelers, R.R.H. (author), Lensink, L. (author)Over the last decades, the complexity of high-tech systems, and the softwaresystems controlling them,has increased considerably. In practice, it is hard to keep knowledge and documentation of these ever-evolving software systems up-to-date with their actual realization; we are dealing with legacy software. Clearly, this lack of knowledge,...article 2018
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Geilen, M. (author), Falk, J. (author), Haubelt, C. (author), Basten, T. (author), Theelen, B. (author), Stuijk, S. (author)The timed dataflow model of computation is a useful performance analysis tool for electronic system level design automation and embedded software synthesis. Its determinism gives it strong analyzability properties. Its monotonic temporal behavior provides hard real-time guarantees on throughput and latency. It is expressive enough to cover a...article 2017
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Hendriks, M. (author), Basten, T. (author), Verriet, J. (author), Brassé, M. (author), Somers, L. (author)Exploration of design alternatives and estimation of their key performance metrics such as latency and energy consumption is essential for making the proper design decisions in the early phases of system development. Often, high-level models of the dynamic behavior of the system are used for the analysis of design alternatives. Our work presents...article 2016
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Geilen, M. (author), Falk, J. (author), Haubelt, C. (author), Basten, T. (author), Theelen, B. (author), Stuijk, S. (author)The timed dataflow model of computation is a useful performance analysis tool for Electronic System Level Design automation and embedded software synthesis. Its determinism gives it strong analysability properties. It is expressive enough to cover a large class of applications and platforms. The trend however, in both embedded applications and...conference paper 2015
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Im, U. (author), Bianconi, R. (author), Solazzo, E. (author), Kioutsioukis, I. (author), Badia, A. (author), Balzarini, A. (author), Baró, R. (author), Bellasio, R. (author), Brunner, D. (author), Chemel, C. (author), Curci, G. (author), Flemming, J. (author), Forkel, R. (author), Giordano, L. (author), Jiménez-Guerrero, P. (author), Hirtl, M. (author), Hodzic, A. (author), Honzak, L. (author), Jorba, O. (author), Knote, C. (author), Kuenen, J.J.P. (author), Makar, P.A. (author), Manders-Groot, A. (author), Neal, L. (author), Pérez, J.L. (author), Pirovano, G. (author), Pouliot, G. (author), San Jose, R. (author), Savage, N. (author), Schroder, W. (author), Sokhi, R.S. (author), Syrakov, D. (author), Torian, A. (author), Tuccella, P. (author), Werhahn, J. (author), Wolke, R. (author), Yahya, K. (author), Zabkar, R. (author), Zhang, Y. (author), Zhang, J. (author), Hogrefe, C. (author), Galmarini, S. (author)The second phase of the Air Quality Model Evaluation International Initiative (AQMEII) brought together sixteen modeling groups from Europe and North America, running eight operational online-coupled air quality models over Europe and North America on common emissions and boundary conditions. With the advent of online-coupled models providing...article 2015
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Polinder, H. (author), Spiekman, M.E. (author), van Dijk, H.A.L. (author)A next generation of models is needed to guarantee energy performances of buildings and systems in practice. Current energy performance models use assumptions on climate, user behavior, characteristics of building and systems that may deviate from reality. Improvement of the accuracy of these models and assumptions is necessary to better predict...article 2015
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Theelen, Bart (author), Hooman, Jozef (author)In our mission to advance innovation by industrial adoption of academic results, we perform many projects with high-tech industries. Favoring formal methods, we observe a gap between industrial needs in performance modeling and the analysis capabilities of formal methods for this goal. After clarifying this gap, we highlight some relevant...bookPart 2015
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Im, U. (author), Bianconi, R. (author), Solazzo, E. (author), Kioutsioukis, I. (author), Badia, A. (author), Balzarini, A. (author), Baro, R. (author), Bellasio, R. (author), Brunner, D. (author), Chemel, C. (author), Curci, G. (author), Denier van der Gon, H.A.C. (author), Flemming, J. (author), Forkel, R. (author), Giordano, L. (author), Jimenez-Guerrero, P. (author), Hirtl, M. (author), Hodzic, A. (author), Honzak, L. (author), Jorba, O. (author), Knote, C. (author), Makar, P.A. (author), Manders-Groot, A.M.M. (author), Neal, L. (author), Perez, J.L. (author), Pirovano, G. (author), Pouliot, G. (author), San Jose, R. (author), Savage, N. (author), Schroder, W. (author), Sokhi, R.S. (author), Syrakov, D. (author), Torian, A. (author), Tucella, P. (author), Wang, K. (author), Werhahn, J. (author), Wolke, R. (author), Zabkar, R. (author), Zhang, Y. (author), Zhang, J. (author), Hogrefe, C. (author), Galmarini, S. (author)The second phase of the Air Quality Model Evaluation International Initiative (AQMEII) brought together seventeen modeling groups from Europe and North America, running eight operational online-coupled air quality models over Europe and North America using common emissions and boundary conditions. The simulated annual, seasonal, continental and...article 2014
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Janssen, T. (author), Litjens, R. (author), Sowerby, K.W. (author)Driven by a combination of flat lining revenues and an explosive growth in the mobile data traffic and hence the need for network resources, mobile operators consider infrastructure-and spectrum sharing as a means to reduce operational costs. We develop and apply an assessment approach to quantify the benefits associated with spectrum sharing in...conference paper 2014
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Hendriks, M. (author), Basten, T. (author), Verriet, J. (author), Brassé, M. (author), Somers, L. (author)Exploration of design alternatives and estimation of their key performance metrics such as latency and energy consumption is essential for making the proper design decisions in the early phases of system development. Often, highlevel models of the dynamic behavior of the system are used for the analysis of design alternatives. Our work presents...article 2014
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Ellens, W. (author), Zivkovic, M. (author), Akkerboom, J.D. (author), Litjens, R. (author), van den Berg, J.L. (author)In this paper we consider the general problem of resource provisioning within cloud computing. We analyze the problem of how to allocate resources to different clients such that the service level agreements (SLAs) for all of these clients are met. A model with multiple service request classes generated by different clients is proposed to...conference paper 2012
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