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Helisto, N. (author), Kiviluoma, J. (author), Morales España, G.A. (author), O'Dwyer, C. (author)Planning of future energy systems with higher prevalence of wind and solar energy requires a careful representation of the temporal and operational characteristics of the system in the investment planning model. This study aims to identify the aspects that should be considered when selecting the representation for a particular system. To...article 2021
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- Berkhoff, A. (author) conference paper 2020
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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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Visser, L. (author), Kingma, B.R.M. (author), Willems, E. (author), Loomans, M. (author), Schellen, H. (author), Broers, W. (author), op 't Veld, P. (author), van Marken Lichtenbelt, W. (author)Studies indicate that the energy performance gap between real and calculated energy use can be explained for 80% by occupant behaviour. This human factor may be composed of routine and thermoregulatory behaviour. When occupants do not feel comfortable due to high or low operative temperatures and resulting high or low skin temperatures, they are...conference paper 2019
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Madadi, B. (author), van Nes, R. (author), Snelder, M. (author), van Arem, B. (author)This paper presents a bi-level model to optimize automated-vehicle-friendly subnetworks in urban road networks and an efficient algorithm to solve the model, which is relevant for the transition period with vehicles of different automation levels. We formulate the problem as a network design problem, define solution requirements, present an...article 2019
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Fiamoncini, J. (author), Yiorkas, A.M. (author), Gedrich, K. (author), Rundle, M. (author), Alsters, S.I. (author), Roeselers, G. (author), van den Broek, T.J. (author), Clavel, T. (author), Lagkouvardos, I. (author), Wopereis, S. (author), Frost, G. (author), van Ommen, B. (author), Blakemore, A.I. (author), Daniel, H. (author)Bile acids (BA) are signaling molecules with a wide range of biological effects, also identified among the most responsive plasma metabolites in the postprandial state. We here describe this response to different dietary challenges and report on key determinants linked to its interindividual variability. Healthy men and women (n = 72, 62 ± 8 yr,...article 2017
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Laan, C.M. (author), Barros, A.I. (author), Boucherie, R.J. (author), Monsuur, H. (author)This paper considers a special case of security games dealing with the protection of a large area divided in multiple cells for a given planning period. An intruder decides on which cell to attack and an agent selects a patrol route visiting multiple cells from a finite set of patrol routes such that some given operational conditions on the...conference paper 2017
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Keizer, W.P.M.N. (author)The impact of the array factor (AF) on the synthesis of a low-sidelobe taper for planar array antennas with a periodic element grid is investigated. A low-sidelobe taper that is synthesized for those far-field directions of the AF belonging to only visible direction, cosine u - v space, can seriously deteriorate with respect to peak sidelobe...article 2016
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Eisele, C. (author), Seiffer, D.P. (author), Stein, K. (author), Sucher, E. (author), Gunter, W.H. (author), February, F. (author), Vrahimis, G. (author), Wainman, C. (author), Maritz, B. (author), Koago, M.S. (author), van Eijk, A.M.J. (author), van Iersel, M. (author), Cohen, L.H. (author), van Binsbergen, S.A. (author), Heemskerk, H.J.M.E. (author), Sternberg, A. (author), Schulte, H. (author), van Rheenen, A.D. (author), Brenthagen, E. (author), Thomassen, J.B. (author), Griffith, D. (author)A long term field trial called FESTER (First European South African Transmission Experiment) has been conducted by an international collaboration of research organizations during the course of almost one year at False Bay, South Africa. Main objectives of the experiment are a better insight into atmospherical effects on propagation of optical...conference paper 2016
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Sprung, D. (author), Van Eijk, A.M.J. (author), Sucher, E. (author), Eisele, C. (author), Seiffer, D. (author), Stein, K. (author)The experiment FESTER (First European South African Transmission ExpeRiment) took place in 2015 to investigate the atmospheric influence on electro-optical systems performance across False Bay / South Africa on a long term basis. Several permanent stations for monitoring electro-optical propagation and atmospheric parameters were set up around...conference paper 2016
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van Eijk, A.M.J. (author), Gunter, W.H. (author), February, F.J. (author), Maritz, B. (author), Vrahimis, G. (author), Koago, M.S. (author), Wainman, C. (author), Eisele, C. (author), Seiffer, D. (author), Sucher, E. (author), Stein, K. (author), van Iersel, M. (author), Cohen, L.H. (author), van Binsbergen, S.A. (author), Heemskerk, H.J.M. (author), Sternberg, A. (author), Schulte, H. (author), van Rheenen, A.D. (author), Brenthagen, E. (author), Thomassen, J.B. (author), Griffith, D. (author)An overview is given of the First European - South African Transmission ExpeRiment (FESTER), which took place in South Africa, over the False Bay area, centered around Simon's Town. The experiment lasted from April 2015 through February 2016 and involved continuous observations as well as periodic observations that took place during four...conference paper 2016
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van Loon, K. (author), Breteler, M.J.M. (author), van Wolfwinkel, L. (author), Rheineck Leyssius, A.T. (author), Kossen, A.S. (author), Kalkman, C.J. (author), van Zaane, B. (author), Peelen, L.M. (author)Altered respiratory rate is one of the first symptoms of medical conditions that require timely intervention, e.g., sepsis or opioid-induced respiratory depression. To facilitate continuous respiratory rate monitoring on general hospital wards a contactless, non-invasive, prototype monitor was developed using frequency modulated continuous wave...article 2016
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Duipmans, L. (author), Struiksma, R.E. (author), Klumperink, E.A.M. (author), Nauta, B. (author), van Vliet, F.E. (author)N-path filters exploiting switched-series-R-C networks can realize high-Q blocking-tolerant band-pass filters. Moreover, their center frequency is flexibly programmable by a digital clock. Unfortunately, the time variant nature of these circuits also results in unwanted signal folding. This paper proves analytically that folding can be reduced...article 2015
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van Dommelen, P. (author), Verkerk, P.H. (author), van Straaten, H.L. (author)Objective To gain insight into health and related costs associated with very preterm births, one needs accurate information about the prevalence of the disabling conditions, including neonatal hearing loss (NHL). Study design We assessed the prevalence of NHL by week of gestation and categories of birth weight in very preterm neonates. Results...article 2015
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Swamy, M. (author), Shoeibi Omrani, P. (author), González Díez, N. (author)Gas transport in corrugated pipes often exhibit whistling behavior, due to periodic flow-induced pulsations generated in the pipe cavities. These aero-acoustic sources are strongly dependent on the geometrical dimensions and features of the cavities. As a result, uncertainties in the exact shape and geometry play a significant role in...conference paper 2015
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van Zon, A.T. (author), Volker, A.W.F. (author)The concept of predictive maintenance using permanent sensors that monitor the integrity of an installation is an interesting addition to the current method of periodic inspections. Guided wave tomography had been developed to create a map of the wall thickness using the travel times of guided waves. It can be used for both monitoring and for...conference paper 2014
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Hoogeboom, T.J. (author), Dronkers, J.J. (author), Hulzebos, E.H.J. (author), van Meeteren, N.L.U. (author)PURPOSE OF REVIEW: Advances in medical care have led to an increasing elderly population. Elderly individuals should be able to participate in society as long as possible. However, with an increasing age their adaptive capacity gradually decreases, specially before and after major life events (like hospitalization and surgery) making them...article 2014
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Bakker, M. (author), van der Beek, A.J. (author), Hendriksen, I.J.M. (author), Bruinvels, D.J. (author), van Poppel, M.N. (author)Objectives The aim of this study was to investigate which prepartum determinants contribute to the development of postpartum (PP) fatigue among working women in the Netherlands. Methods A prospective cohort study in 15 Dutch companies was conducted to measure different potential predictors using self-administrated questionnaires at baseline and...article 2014
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van der Meulen, O.R. (author), Soetens, F. (author), Maljaars, J. (author)Fire is often the dominant design criterion for aluminium structures. Present design rules for aluminium constructions in fire neglect both the decrease in susceptibility to local buckling and the effects of creep, that are intrinsic to aluminium. They may therefore either overestimate or underestimate the temperature of failure, depending on...article 2014