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Pappas, K. (author), Mackie, L. (author), Zilakos, I. (author), van der Weijde, A.H. (author), Angeloudis, A. (author)Tides exhibit variability over time. This study proposes a methodology for selecting a representative timeframe for tidal range energy analyses, when constrained to a typical, short-term, lunar month-long period. We explore how the selection of particular timeframes skews findings of energy assessments, especially for cross-comparisons across...article 2023
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Pappas, K. (author), Mackie, L. (author), Zilakos, I. (author), van der Weijde, A.H. (author), Angeloudis, A. (author)Tides exhibit variability over time. This study proposes a methodology for selecting a representative timeframe for tidal range energy analyses, when constrained to a typical, short-term, lunar month-long period. We explore how the selection of particular timeframes skews findings of energy assessments, especially for cross-comparisons across...article 2023
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de Jong, C.A.F. (author)One of the main aims of the EU Horizon 2020 research program SATURN (developing solutions to underwater radiated noise, https://www.saturnh2020.eu/) is to determine the relevant metrics of ship-radiated underwater sounds that can be related to effects on the physiology and behavior of aquatic animals. Where possible, these metrics will then be...bookPart 2023
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Stoter, A.J.R. (author), Rietveld, B. (author), Jansen, V. (author), Bastiaansen, H.J.M. (author)The ambition of the EU Data Strategy can be summarized as a ‘federation of interoperable data spaces’. Currently, a multitude of architectures, frameworks and protocols is used by various data spaces. The Data Sharing Coalition has provided an architecture framework for interoperability between data spaces, making use of a harmonization domain...conference paper 2022
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de Kok, M. (author), Monni S., (author), van Heijningen, M. (author), Garufo, A. (author), Smolders, B.A. (author), Johannsen, U. (author)This article reviews the current state-of-the-art of active-integrated antennas co-designed with power amplifiers (PAs). Three strategies to improve output power and power-added efficiency are described using examples, namely direct matching between PA and antenna, tuning of harmonic reflections in the antenna, and in-antenna power combining...conference paper 2022
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Massaad, J. (author), van Neer, P.L.M.J. (author), van Willigen, D.M. (author), de Jong, N. (author), Pertijs, M.A.P. (author), Verweij, M.D. (author)Acoustic wave propagation in ultrasonic flow measurements is typically assumed to be linear and reciprocal.However, if the transmitting transducer generates a sufficiently high pressure, nonlinear wave propagation effects become significant. In flow measurements, this would translate into more information to estimate the flow and therefore a...article 2021
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Fokker, P.A. (author), Borello, E.S. (author), Viberti, D. (author), Verga, F. (author), van Wees, J.D. (author)Seasonal storage of heat in shallow aquifers for increasing the efficiency of geothermal energy systems requires a proper monitoring strategy. We expanded our earlier work on harmonic pulse testing (HPT) to incorporate the effect of a temperature front moving into the reservoir due to injection of hot (or cold) water. Our analytical solutions...article 2021
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Keyvani Janbahan, A. (author), van der Veen, G. (author), Tamer, M.S. (author), Sadeghian Marnani, H. (author), Goosen, H. (author), van Keulen, F. (author)The real-time and accurate measurement of tip-sample interaction forces in Tapping Mode Atomic Force Microscopy (TM-AFM) is a remaining challenge. This obstruction fundamentally stems from the causality of the physical systems. Since the input of the dynamic systems propagates to the output with some delay, and multiple different inputs can...article 2020
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Fokker, P.A. (author), Salina Borello, E. (author), Verga, F. (author), Viberti, D. (author)Harmonic testing was developed as a form of well testing that can be applied during ongoing production or injection operations, as a pulsed signal is superimposed on the background pressure trend. Thus no interruption of well and reservoir production is needed before and during the test. If the pulsed pressure and rate signal analysis is...article 2018
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- Schmitz, H.C. (author), Pienemann, R. (author), Deneckere, M. (author) conference paper 2017
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- Yepes, C. (author), Cavallo, D. (author), Neto, A. (author), Gandini, E. (author), Monni, S. (author), van Vliet, F.E. (author) conference paper 2017
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Fokker, P.A. (author), Salina Borello, E. (author), Verga, F. (author), Viberti, D. (author)For decades, well tests have been widely used in the oil industry for evaluation of well productivity and reservoir properties, which provide key information for field development and facilities design. In conventional well tests equilibrium conditions are required in the reservoir before the test. Furthermore, a single well only can be produced...conference paper 2017
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- Lucke, K. (author), Scowcroft, G. (author), Winter, H.V. (author), Knowlton, C. (author), Lam, F.P.A. (author), Hawkins, A. (author), Popper, A.N. (author) conference paper 2016
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Schutte, K.C.J. (author), Portela, L.M. (author), Twerda, A. (author), Henkes, R.A.W.M. (author)In this work, we propose a detailed numerical model for asphaltene agglomeration and deposition, as induced by a resolved turbulent liquid carrier phase flow, in which transport, breakup, and re-entrainment are also taken into account. Asphaltene phase separation is represented by the appearance of adhesive primary particles, which bond upon...article 2015
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Willems, F.P.T. (author), Kupper, F. (author), Rascanu, G. (author), Feru, E. (author)Rankine-cycleWasteHeatRecovery (WHR)systems are promising solutions to reduce fuel consumption for trucks. Due to coupling between engine andWHR system, control of these complex systems is challenging. This study presents an integrated energy and emission management strategy for an Euro-VI Diesel engine withWHRsystem. This Integrated Powertrain...conference paper 2015
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Cifola, L. (author), Gerini, G. (author), van den Berg, S. (author), van de Water, F. (author)A novel design of an S-band active array antenna with enhanced frequency selectivity properties, for radar applications, is presented. The array unit cell consists of a stacked-patch radiator, characterized by an operational bandwidth of [2.8 - 3.4] GHz. A microstrip two-pole band pass filter is connected to the antenna feeding line, improving...conference paper 2014
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Ashton, R. (author), de Wever, B. (author), Fuchs, H.W. (author), Gaca, M. (author), Hill, E. (author), Krul, C.A.M. (author), Poth, A. (author), Roggen, E.L. (author)Despite changing attitudes towards animal testing and current legislation to protect experimental animals, the rate of animal experiments seems to have changed little in recent years. On May 15–16, 2013, the In Vitro Testing Industrial Platform (IVTIP) held an open meeting to discuss the state of the art in alternative methods, how companies...article 2014
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Cifola, L. (author), Gerini, G. (author), van den Berg, S. (author), van de Water, F. (author)In the present work, the design of an S-band active array antenna with inherent frequency selectivity properties is described. The radiating element, based on a stacked-patch configuration, is characterized by an operational bandwidth of [2.8-3.4] GHz. In-band frequency selectivity is performed by a microstrip two-pole band pass filter connected...conference paper 2014
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Willems, F.P.T. (author), Donkers, M.C.F. (author), Kupper, F. (author)This study presents an integrated energy and emission management strategy for a Euro-VI diesel engine with Waste Heat Recovery (WHR) system. This Integrated Powertrain Control (IPC) strategy optimizes the CO2-NOx trade-off by minimizing the operational costs associated with fuel and AdBlue consumption, while satisfying tailpipe emission...bookPart 2014
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van der Bent, G. (author), de Hek, A.P. (author), van der Graaf, M. (author), van Vliet, F.E. (author)A 50 W S-band High Power Amplifier in the UMS GH25-10 technology is presented. In order to increase the output power per area the size of the transistors is increased beyond the maximum size modelled by the foundry. For this reason the design procedure included the measurements of a transistor and the creation of a scalable Angelov-GaN model...conference paper 2014