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Vos, H.J. (author), van Dalen, Bas M. (author), Heinonen, Ilkka (author), Bosch, Johan G. (author), Sorop, Oana (author), Duncker, Dirk J. (author), van der Steen, A.F.W. (author), de Jong, N. (author)Cardiac muscle stiffness can potentially be estimated non-invasively with shear wave elastography. Shear waves are present on the septal wall after mitral and aortic valve closure, thus providing an opportunity to assess stiffness in early systole and early diastole. We report on the shear wave recordings of 22 minipigs with high-frame-rate...journal article 2017
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Chen, C. (author), Chen, Z. (author), Bera, Deep (author), Raghunathan, S.B. (author), Shabanimotlagh, M. (author), Noothout, E.C. (author), Chang, Z.Y. (author), Ponte, Jacco (author), Prins, Christian (author), Vos, H.J. (author), Bosch, J.G. (author), Verweij, M.D. (author), de Jong, N. (author), Pertijs, M.A.P. (author)This paper presents a power-and area-efficient front-end application-specific integrated circuit (ASIC) that is directly integrated with an array of 32 × 32 piezoelectric transducer elements to enable next-generation miniature ultrasound probes for real-time 3-D transesophageal echocardiography. The 6.1 × 6.1 mm<sup>2</sup> ASIC, implemented...journal article 2017
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Cohen, M.A. (author), Yuan, M. (author), de Jong, B.W.A. (author), Beukers, Ewout (author), Bosman, S.J. (author), Steele, G.A. (author)We report on a technique for applying a DC bias in a 3D microwave cavity. We achieve this by isolating the two halves of the cavity with a dielectric and directly using them as DC electrodes. As a proof of concept, we embed a variable capacitance diode in the cavity and tune the resonant frequency with a DC voltage, demonstrating the...journal article 2017
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van Rooij, Tom (author), Beekers, D.I. (author), Lattwein, Kirby R. (author), van der Steen, A.F.W. (author), de Jong, N. (author), Kooiman, Klazina (author)One of the main challenges for ultrasound molecular imaging is acoustically distinguishing nonbound microbubbles from those bound to their molecular target. In this in vitro study, we compared two types of in-house produced targeted lipid-coated microbubbles, either consisting of 1,2-dipalmitoyl-sn-glycero-3-phosphocholine, C16:0 (DPPC) or 1...journal article 2017
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Kokhuis, Tom J A (author), Naaijkens, Benno A. (author), Juffermans, Lynda J.M. (author), Kamp, Otto (author), van der Steen, A.F.W. (author), Versluis, Michel (author), de Jong, N. (author)The use of stem cells for regenerative tissue repair is promising but hampered by the low number of cells delivered to the site of injury. To increase the delivery, we propose a technique in which stem cells are linked to functionalized microbubbles, creating echogenic complex dubbed StemBells. StemBells are highly susceptible to acoustic...journal article 2017
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Strachinaru, Mihai (author), Bosch, Johan G. (author), van Dalen, Bas M. (author), van Gils, Lennart (author), van der Steen, A.F.W. (author), de Jong, N. (author), Geleijnse, Marcel L. (author), Vos, H.J. (author)The propagation velocity of shear waves relates to tissue stiffness. We prove that a regular clinical cardiac ultrasound system can determine shear wave velocity with a conventional unmodified tissue Doppler imaging (TDI) application. The investigation was performed on five tissue phantoms with different stiffness using a research platform...journal article 2017
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Sun, X. (author), Olivos Suarez, A.I. (author), Meijerink, Mark (author), Van Deelen, Tom (author), Ould-Chikh, Samy (author), Zečević, Jovana (author), de Jong, K.M. (author), Kapteijn, F. (author), Gascon, Jorge (author)The development of synthetic protocols for the preparation of highly loaded metal nanoparticle-supported catalysts has received a great deal of attention over the last few decades. Independently controlling metal loading, nanoparticle size, distribution, and accessibility has proven challenging because of the clear interdependence between...journal article 2017
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Kruizinga, P. (author), van der Meulen, P.F. (author), Fedjajevs, A. (author), Mastik, F (author), Springeling, Geert (author), de Jong, N. (author), Bosch, J.G. (author), Leus, G.J.T. (author)Three-dimensional ultrasound is a powerful imaging technique, but it requires thousands of sensors and complex hardware. Very recently, the discovery of compressive sensing has shown that the signal structure can be exploited to reduce the burden posed by traditional sensing requirements. In this spirit, we have designed a simple ultrasound...journal article 2017
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Schijfsma, Hidde (author), de Jong, Coen (author), van der Hoek, J.P. (author), Cassou, Frank (author)Recentelijk is in het lab van professor Will Dichtel van Cornell University (Ithaca, New York) een nieuw adsorptiemateriaal ontwikkeld voor de verwijdering van microverontreinigingen. Deze unieke poreuze cyclodextrine polymeren (P-CDPs) kunnen een breed scala aan organische microverontreinigingen (in relevante concentraties) verwijderen en...journal article 2018
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de Jong, M.A. (author), Papaefthymiou, G. (author), Palensky, P. (author)In this paper, a risk-based security assessment methodology is presented, which allows the assessment of operational security of a power system’s future state under uncertainty deriving from varying topology scenarios (contingencies) and forecast errors (loads and renewable infeeds). The methodology models input uncertaintywith a copula function...journal article 2018
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Khalilnezhad, H. (author), Popov, M. (author), Bos, Jorrit A. (author), de Jong, JPW (author), van der Sluis, L. (author)Switching operations in power systems can produce significant overvoltages under specific circumstances. With the increasing application of underground cables in transmission systems, the statistical distribution of energization overvoltages is expected to change substantially due to the different electrical characteristics of cables and OHLs....conference paper 2018
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Zhilin, S. (author), Klievink, A.J. (author), de Jong, W.M. (author)Citizens interested in the democratization of urban development processes experiment with the co-creation of public spaces. Some of them collect, improve, and share design blueprints and manuals of their projects on the internet with help of free and open source tools. As a result, they produce open source design manuals that can be used freely,...conference paper 2018
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Gilvari, H. (author), Karaca, Kadir (author), de Jong, W. (author), Schott, D.L. (author)The poster investigates the mechanical properties (Particle and bulk densities, compressive strength, bending strength, and the angle of repose) of a variety of torrefied and non-torrefied biomass pellets and shows the relationship between different properties. Moreover, a novel and quick method to determine the particle size distribution of...poster 2018
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Gilvari, H. (author), Eijssen, Dirk (author), IJzermans, Kasper (author), Stolk, Maarten (author), Homsma, Thom (author), de Jong, W. (author), Schott, D.L. (author)The large-scale storage of biomass pellets is challenging due to health issues, material loss, and the risk of fire and explosions. The thermal conductivity is a material property which plays a key role in determining the self-heating properties of biomass. Meanwhile, understanding the thermal conductivity and the affecting factors help to...poster 2018
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- Del Grosso, M. (author), Tsekos, C. (author), de Jong, W. (author) abstract 2018
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de Jong, M. (author), Mavridis, P. (author), Aroyo, Lora (author), Bozzon, A. (author), Vos, Jesse de (author), Oomen, Johan (author), Dimitrova, Antoaneta (author), Badenoch, Alec (author)In this project we explore the presence of ambiguity in textual and visual media and its influence on accurately understanding and<br/>capturing bias in news. We study this topic in the context of supporting<br/>media scholars and social scientists in their media analysis. Our focus<br/>lies on racial and gender bias as well as framing and the...conference paper 2018
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Tan, M. (author), Chen, C. (author), Chen, Z. (author), Janjic, Jovana (author), Daeichin, V. (author), Chang, Z.Y. (author), Noothout, E.C. (author), van Soest, G. (author), Verweij, M.D. (author), de Jong, N. (author), Pertijs, M.A.P. (author)This paper presents an area- and power-efficient application-specified integrated circuit (ASIC) for 3-D forward-looking intravascular ultrasound imaging. The ASIC is intended to be mounted at the tip of a catheter, and has a circular active area with a diameter of 1.5 mm on the top of which a 2-D array of piezoelectric transducer elements is...journal article 2018
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Noori, F. (author), de Jong, W.M. (author)City branding is not only increasingly practiced in cities in established economies, but also among municipal governments in countries, until quite recently, rather closed off from the outside world. One country with a strong drive to engage in urban (re)development in the post-oil era through enhancing its ‘ecological modernization’ is Iran....journal article 2018
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Kang, E. (author), Ding, Q. (author), Shabanimotlagh, M. (author), Kruizinga, P. (author), Chang, Z.Y. (author), Noothout, E.C. (author), Vos, H.J. (author), Bosch, J.W. (author), Verweij, M.D. (author), de Jong, N. (author), Pertijs, M.A.P. (author)This paper presents an ultrasound transceiver application-specific integrated circuit (ASIC) designed for 3-D ultrasonic imaging of the carotid artery. This application calls for an array of thousands of ultrasonic transducer elements, far exceeding the number of channels of conventional imaging systems. The 3.6 x 6.8 mm&#x00B2; ASIC...journal article 2018
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Tsalidis, G.A. (author), Tsekos, C. (author), Anastasakis, K. (author), de Jong, W. (author)In this study torrefied feedstocks, consisting of mixed wood and wood residues torrefied at 300 °C and ash wood torrefied at 250 and 265 °C, were pyrolyzed in a pyroprobe at five pyrolysis temperatures (600–1000 °C) and a fast heating rate (600 °C·s−1) to investigate the effect of torrefaction on the formation of volatiles and their evolution in...journal article 2018