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Sparse 2-D PZT-on-PCB Arrays With Density Tapering

Wei, Luxi (author), Boni, Enrico (author), Ramalli, Alessandro (author), Fool, F. (author), Noothout, E.C. (author), van der Steen, A.F.W. (author), Verweij, M.D. (author), Tortoli, Piero (author), de Jong, N. (author), Vos, H.J. (author)

Two-dimensional (2-D) arrays offer volumetric imaging capabilities without the need for probe translation or rotation. A sparse array with elements seeded in a tapering spiral pattern enables one-to-one connection to an ultrasound machine, thus allowing flexible transmission and reception strategies. To test the concept of sparse spiral array...

journal article 2022

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Imaging Scheme for 3-D High-Frame-Rate Intracardiac Echography: A Simulation Study

Soozande, Mehdi (author), Ossenkoppele, B.W. (author), Hopf, Y.M. (author), Pertijs, M.A.P. (author), Verweij, M.D. (author), de Jong, N. (author), Vos, H.J. (author), Bosch, Johan G. (author)

Atrial fibrillation (AF) is the most common cardiac arrhythmia and is normally treated by RF ablation. Intracardiac echography (ICE) is widely employed during RF ablation procedures to guide the electrophysiologist in navigating the ablation catheter, although only 2-D probes are currently clinically used. A 3-D ICE catheter would not only...

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Photovoltaic Potential of the Dutch Inland Shipping Fleet: An Experimentally Validated Method to Simulate the Power Series from Vessel-Integrated Photovoltaics

de Jong, Dora (author), Ziar, H. (author)

The surface of the vessels, as moving tiny islands, can be utilized to implement vehicle-integrated photovoltaics (VIPV). Herein, a methodology is reported to calculate the power generated by a fleet of urban vessels as a function of time. Then, the result is shown for the largest European shipping fleet, using sailing data of 2746 Dutch...

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Design and Proof-of-Concept of a Matrix Transducer Array for Clamp-on Ultrasonic Flow Measurements

Massaad Mouawad, J.M. (author), van Neer, P.L.M.J. (author), van Willigen, D.M. (author), Noothout, E.C. (author), de Jong, N. (author), Pertijs, M.A.P. (author), Verweij, M.D. (author)

Common clamp-on ultrasonic flow meters consist of two single-element transducers placed on the pipe wall. Flow speed is measured noninvasively, i.e., without interrupting the flow and without perforating the pipe wall, which also minimizes safety risks and avoids pressure drops inside the pipe. However, before metering, the transducers have...

journal article 2022

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Influence of indirectly heated steam-blown gasification process conditions on biochar physico-chemical properties

Del Grosso, M. (author), Cutz, L. (author), Tiringer, U. (author), Tsekos, C. (author), Taheri, P. (author), de Jong, W. (author)

Our work provides a thorough characterization of different biochars produced by a novel 50 kW_th Indirectly Heated Bubbling Fluidized Bed Steam Reformer. This study investigates the effect of temperature and gasification agent on the physico-chemical properties of biochars. We combined macro, micro and nano characterization...

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Dispersing and Sonoporating Biofilm-Associated Bacteria with Sonobactericide

Lattwein, K.R. (author), Beekers, Inés (author), Kouijzer, Joop J.P. (author), Leon-Grooters, Mariël (author), Langeveld, Simone A.G. (author), van Rooij, Tom (author), van der Steen, A.F.W. (author), de Jong, N. (author), van Wamel, Willem J.B. (author), Kooiman, Klazina (author)

Bacteria encased in a biofilm poses significant challenges to successful treatment, since both the immune system and antibiotics are ineffective. Sonobactericide, which uses ultrasound and microbubbles, is a potential new strategy for increasing antimicrobial effectiveness or directly killing bacteria. Several studies suggest that...

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Removal of Antibiotic Resistance From Municipal Secondary Effluents by Ozone-Activated Carbon Filtration

Spit, T.P.M. (author), van der Hoek, J.P. (author), de Jong, Coen (author), van Halem, D. (author), de Kreuk, M.K. (author), Bicudo, Bruno (author)

At wastewater treatment plants (WWTPs), additional steps are introduced for removal of organic micropollutants (OMPs) from the treated effluents, especially pharmaceutical residues. At the same time, a new concern is emerging: antibiotic resistance (AR). This research studied the effect of ozonation, coagulation and granular activated carbon ...

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Internalization of targeted microbubbles by endothelial cells and drug delivery by pores and tunnels

Beekers, Inés (author), Langeveld, Simone A.G. (author), Meijlink, Bram (author), van der Steen, A.F.W. (author), de Jong, N. (author), Verweij, M.D. (author), Kooiman, Klazina (author)

Ultrasound insonification of microbubbles can locally enhance drug delivery by increasing the cell membrane permeability. To aid development of a safe and effective therapeutic microbubble, more insight into the microbubble-cell interaction is needed. In this in vitro study we aimed to investigate the initial 3D morphology of the endothelial...

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Planning and developing a high-speed railway new town under state entrepreneurialism in China

Wang, B. (author), de Jong, Martin (author), van Bueren, Ellen (author), Ersoy, A. (author), Song, Yun (author)

The development of high-speed railway (HSR) new towns in China represents a new phase of suburbanization and has had a significant impact on urban expansion, but not all of its mechanisms and drivers have been studied. This article aims to understand the booming development of HSR new towns in China through the theoretical lens of state...

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Dreaming the wrong dream: An exploratory case study of a policy change toward sustainable urban development in a medium-sized Chinese city

Song, Y. (author), de Jong, W.M. (author), Stead, D. (author), Yang, Wei (author), Wang, B. (author)

Sustainable urban transformation has become a mantra for Chinese cities. While most studies focus on sustainable urbanization in megacities, the far larger number of medium-sized cities is understudied, although the latter face more severe urban problems. This article develops a framework for examining policy change in sustainable urban...

journal article 2022

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Cybernetic Data Augmentation for Neural Network Classification of Control Skills

de Jong, M.A. (author), Pool, D.M. (author), Mulder, Max (author)

Mathematical human controller (HC) models are widely used in tuning manual control systems and for understanding human performance. Typically, quasi-linear HC models are used, which can accurately capture the linear portion of HCs' behavior, averaged over a long measurement window. This paper presents a deep learning HC skill-level evaluation...

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Accelerated 2D Real-Time Refraction-Corrected Transcranial Ultrasound Imaging

Mozaffarzadeh, M. (author), Verschuur, D.J. (author), Verweij, M.D. (author), de Jong, N. (author), Renaud, G.G.J. (author)

In a recent study, we proposed a technique to correct aberration caused by the skull and reconstruct a transcranial B-mode image with a refraction-corrected synthetic aperture imaging (SAI) scheme. Given a sound speed map, the arrival times were calculated using a fast marching technique (FMT), which solves the Eikonal equation and, therefore...

journal article 2022

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The Future of Burn Care From a Complexity Science Perspective

van Zuijlen, Paul P.M. (author), Korkmaz, Halil Ibrahim (author), Sheraton, Vivek M. (author), Haanstra, Tsjitske M. (author), Pijpe, Anouk (author), de Vries, Annebeth (author), van der Vlies, Cornelis H. (author), Bosma, Eelke (author), de Jong, Evelien (author), Middelkoop, Esther (author), Vermolen, F.J. (author), Sloot, Peter M.A. (author)

Health care is undergoing a profound technological and digital transformation and has become increasingly complex. It is important for burns professionals and researchers to adapt to these developments which may require new ways of thinking and subsequent new strategies. As Einstein has put it: "We must learn to see the world anew." The...

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A spatial and temporal characterisation of single proton acoustic waves in proton beam cancer therapy

Deurvorst, F.R. (author), Collado Lara, G. (author), Matalliotakis, A. (author), Vos, H.J. (author), de Jong, N. (author), Daeichin, V. (author), Verweij, M.D. (author)

An in vivo range verification technology for proton beam cancer therapy, preferably in real-time and with submillimeter resolution, is desired to reduce the present uncertainty in dose localization. Acoustical imaging technologies exploiting possible local interactions between protons and microbubbles or nanodroplets might be an interesting...

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Hydroxyl Ethyl Starch (HES) Preserves Intrarenal Microcirculatory Perfusion Shown by Contrast-Enhanced Ultrasound (Ceus), and Renal Function in a Severe Hemodilution Model in Pigs

Ergin, Bülent (author), van Rooij, Tom (author), Lima, Alexandre (author), Ince, Yasin (author), Specht, Patricia A.C. (author), Mik, E.G. (author), Kooiman, Klazina (author), de Jong, N. (author), Ince, Can (author)

Acute normovolemic hemodilution (ANH) is associated with low oxygen carrying capacity of blood and purposed to cause renal injury in perioperative setting. It is best accomplished in a perioperative setting by a colloid such as hydroxyl ethyl starch (HES) due its capacity to fill the vascular compartment and maintain colloidal pressure....

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Surface Coverage as an Important Parameter for Predicting Selectivity Trends in Electrochemical CO₂ Reduction

Morrison, A.R.T. (author), Ramdin, M. (author), van den Broeke, L.J.P. (author), de Jong, W. (author), Vlugt, T.J.H. (author), Kortlever, R. (author)

The electrochemical CO2 reduction reaction (CO2RR) is important for a sustainable future. Key insights into the reaction pathways have been obtained by density functional theory (DFT) analysis, but so far, DFT has been unable to give an overall understanding of selectivity trends without important caveats. We show that an unconsidered...

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Radio-Frequency C - V Measurements with Subattofarad Sensitivity

Malinowski, F.K. (author), Han, L. (author), de Jong, D. (author), Wang, Ji Yin (author), Prosko, C.G. (author), Krogstrup, Peter (author), Bakkers, Erik P.A.M. (author), Kouwenhoven, Leo P. (author), Koski, Jonne V. (author)

We demonstrate the use of radio-frequency (rf) resonators to measure the capacitance of nanoscale semiconducting devices in field-effect transistor configurations. The rf resonator is attached to the gate or the lead of the device. Consequently, tuning the carrier density in the conducting channel of the device affects the resonance frequency...

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Algorithm to Correct Measurement Offsets Introduced by Inactive Elements of Transducer Arrays in Ultrasonic Flow Metering

Massaad Mouawad, J.M. (author), van Neer, P.L.M.J. (author), van Willigen, D.M. (author), Pertijs, M.A.P. (author), de Jong, N. (author), Verweij, M.D. (author)

Ultrasonic flow meters (UFMs) based on transducer arrays offer several advantages. With electronic beam steering, it is possible to tune the steering angle of the beam for optimal signal-tonoise ratio (SNR) upon reception. Moreover, multiple beams can be generated to propagate through different travel paths, covering a wider section of the...

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Error analysis and reliability of zero-order Lamb mode inversion for waveguide characterization

Sabbadini, A. (author), Massaad Mouawad, J.M. (author), van Neer, P.L.M.J. (author), de Jong, N. (author), Verweij, M.D. (author)

In recent years, several fitting techniques have been presented to reconstruct the parameters of a plate from its Lamb wave dispersion curves. Published studies show that these techniques can yield high accuracy results and have the potential of reconstructing several parameters at once. The precision with which parameters can be...

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Refraction-Corrected Transcranial Ultrasound Imaging through the Human Temporal Window using a Single Probe

Mozaffarzadeh, M. (author), Verschuur, D.J. (author), Verweij, M.D. (author), Daeichin, V. (author), de Jong, N. (author), Renaud, G.G.J. (author)

Transcranial ultrasound imaging (TUI) is a diagnostic modality with numerous applications, but unfortunately, it is hindered by phase aberration caused by the skull. In this article, we propose to reconstruct a transcranial B-mode image with a refraction-corrected synthetic aperture imaging (SAI) scheme. First, the compressional sound...

journal article 2022