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Bunting, S.Y. (author), Lapworth, D.J. (author), Crane, E.J. (author), Grima-Olmedo, J. (author), Korosa, A. (author), Kuczynska, A. (author), Mali, N. (author), Rosenqvist, L. (author), van Vliet, M.E. (author), Togola, A. (author), Lopez, B. (author)
In Europe, emerging organic compounds (EOCs) in groundwater is a growing research area. Prioritisation for monitoring EOCs in Europe was formalised in 2019 through the development of the first voluntary groundwater watch list (GWWL). Despite this, groundwater occurrence data in the peer reviewed literature for Europe has not been reviewed to...
article 2021
document
Klein Velderman, M. (author), van Vliet, W. (author)
Jaarlijks verbreken bijna vijftigduizend Nederlandse ouderparen hun huwelijk, partnerschap- of samenwoonrelatie. Als ouders uit elkaar gaan, verbreken ze hun partnerrelatie, maar blijven ze samen verantwoordelijk voor de kinderen. Dit brengt extra vragen en onzekerheden met zich mee: Hoe zorg je goed voor jezelf en je kinderen? Hoe werkt dat,...
public lecture 2021
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Yepes, C. (author), Gandini, E. (author), Monni, S. (author), Neto, A. (author), van Vliet, F.E. (author), Cavallo, D. (author)
In this letter, we present a design of a linear array of tilted dipoles to achieve radiation patterns with asymmetric angular filtering characteristics. To realize the asymmetric radiation, the dipole elements are spaced by a distance larger than half a wavelength, thus allowing for grating lobes to occur in the visible region. Moreover, the...
article 2020
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Peters, R.J.B. (author), Oomen, A.G. (author), van Bemmel, G. (author), van Vliet, L. (author), Undas, A.K. (author), Munniks, S. (author), Bleys, R.L.A.W. (author), Tromp, P.C. (author), Brand, W. (author), van der Lee, M. (author)
Silicon dioxide (silica, SiO2, SAS) and titanium dioxide (TiO2) are produced in high volumes and applied in many consumer and food products. As a consequence, there is a potential human exposure and subsequent systemic uptake of these particles. In this study we show the characterization and quantification of both total silicon (Si) and titanium...
article 2020
document
Klein Velderman, M. (author), Pannebakker, F. (author), van Vliet, W. (author), Reijneveld, M. (author)
Aldus ouders die deelnamen aan de preventieve training ScheidingsATLAS. ScheidingsATLAS is een kortdurende training, speciaal ontwikkeld met en voor gescheiden ouders ter ondersteuning van hun ouderschap na scheiding. Dit artikel beschrijft de achtergrond en het ontstaan van de training, en de resultaten van een evaluatieonderzoek naar de...
article 2020
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Verweij, W. (author), Bloem, J. (author), van Vliet, M.E. (author), van Loon, A. (author), Swartjes, F. (author)
article 2020
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van Wanum, M. (author), Lia, E. (author), de Boer, L. (author), Bronts, L.Q. (author), Marien Rodenburg, M. (author), Jacobs, B. (author), Inácio, A.I. (author), van Heijningen, M. (author), van Vliet, F.E. (author)
This paper describes a Ku-band up-converter for low cost satellite Machine to Machine (M2M) applications. The up-converter comprises a heterodyne sliding-IF architecture. This converts the baseband input signal (0 – 20 MHz) to the RF output signal (13.75 – 14.75 GHz). The necessary Local Oscillator (LO) signals are generated by an on-chip...
conference paper 2020
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van der Bent, G. (author), de Hek, A.P. (author), van Vliet, F.E. (author), Ouarch, A. (author)
A 100 W single chip GaN HPA for radar applications is designed, manufactured and measured. This HPA delivers a peak output power of 107 W at a PAE of more than 55 %. The operational equency band of the HPA is from 2.9 GHz to 3.4 GHz. High quality non-linear transistor models and advanced simulations of RF performance, amplifier stability and...
conference paper 2020
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van Cappellen, W.A. (author), Deborgies, F. (author), Ruggiano, M. (author), van Vliet, F.E. (author)
[No abstract available]
conference paper 2020
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van Vliet, H. (author), Bonte, C. (author), de Vries, A. (author), Menkhorst, M. (author), van den Brink, M. (author)
other 2019
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van der Eerden, F.J.M. (author), Brouns, E. (author), Eisses, A.R. (author), van Vliet, W. (author)
By using elements with quarter-wavelength resonators of different depths alongside a road, noise can be diffracted upwards to create a zone of noise reduction behind these elements. Measurements at a short distance, up to 15 meters, have proven that a noise reduction up to 4 dB(A) can be achieved. The noise reduction at long distance, up to 600...
conference paper 2019
document
van der Bent, G. (author), de Hek, A.P. (author), van Vliet, F.E. (author)
The manufacturing of radar front-ends is preferably performed with components that are fully tested and known to be functional. This decreases the chances of instant failure or rapid degradation of the system. Complete testing of the RF-performance of the individual MMICs, however, is not always possible due to technical, infrastructural or...
conference paper 2019
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de Vries, A. (author), van Vliet, H. (author), Schultz, S. (author), Rijken, M. (author), Steen, M. (author), Huis in 't Veld, M. (author)
Sociale media bieden veel nieuwe kansen en mogelijkheden. Kijk bijvoorbeeld naar al die initiatieven in buurten en wijken, waarin bewoners elkaar opzoeken en zich met elkaar verbinden. Ze willen samen werken aan een betere buurt. Hun sociale netwerken groeien en gedijen zonder enige overheidsbemoeienis. Ook het aantal toepassingen daarvoor groeit.
book 2019
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van Heijningen, M. (author), van Vliet, F.E. (author)
public lecture 2019
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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
document
Weima, I. (author), Schwedersky, A. (author), van Vliet, H. (author), van Rest, J. (author)
De huidige dreiging vraagt om ontwikkeling van oplossingen voor de korte maar vooral ook de langere termijn. Daarvoor is niet alleen de inzet van de mens nodig, maar ook ondersteunende technologie.
report 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
document
van der Bent, G. (author), de Hek, A.P. (author), van Vliet, F.E. (author)
The manufacturing of radar front-ends is preferably performed with components that are fully tested and known to be functional. This decreases the chances of instant failure or rapid degradation of the system. Complete testing of the RF-performance of the individual MMICs, however, is not always possible due to technical, infrastructural or...
conference paper 2019
document
van den Berg, H. (author), van Hemert, D.A. (author), van Vliet, A.J. (author)
Many interventions aim to tackle violent radicalization. Monitoring the implementation of interventions results in a better identification of effective interventions and in a more appropriate selection of applicable interventions for practitioners. Using meta-analytic and network analytic methods, we present a method to store and retrieve...
article 2018
document
Klein Velderman, M. (author), Pannebakker, F.D. (author), van Vliet, W. (author), Reijneveld, S.A. (author)
Objective: Parental divorce has strong impacts on children. Evidence-based programs to support young children after parental divorce are rare. The U.S.-developed Children of Divorce Intervention Program (CODIP) is one of these. CODIP’s effectiveness outside the U.S. setting is to be further replicated. This study aimed at cultural adaptation of...
article 2018
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