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van Willigen, D.M. (author), Mozaffarzadeh, M. (author), Noothout, E.C. (author), Verweij, M.D. (author), de Jong, N. (author), Pertijs, M.A.P. (author), Daeichin, V. (author)This paper presents the integration steps towards a prototype forward-looking intra-vascular ultrasound probe. An ASIC (Application Specific Integrated Circuit) is laser cut to create a 1.6mm circular shaped die that can be integrated at the tip of a small catheter. The ASIC is designed such that it can be used to transmit and receive on 64...conference paper 2019
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Ossenkoppele, B.W. (author), Wei, Luxi (author), Luijten, Ben (author), Vos, H.J. (author), de Jong, N. (author), Van Sloun, Ruud J.G. (author), Verweij, M.D. (author)3-D contrast enhanced ultrasound enables better visualization of inherently 3-D vascular geometries compared to an intersecting plane. Additionally, it would allow the application of motion correction techniques for all directions. Both contrast detection and motion correction work better on high-frame rate data. However high-frame rate 3-D...conference paper 2022
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Waasdorp, R. (author), Mugge, W. (author), Vos, H.J. (author), de Groot, J.H. (author), de Jong, N. (author), Verweij, M.D. (author), Schouten, A.C. (author), Daeichin, V. (author)Current methods to track the progression and evaluate treatment of muscular dystrophies are scarce. The electromechanical delay (EMD), defined as the time lag from muscle electrical activity to motion onset, has been proposed as a biomarker, but provides only limited insight in the pathophysiol-ogy of muscle function. This work proposes and...conference paper 2019
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de Jong, M. (author), van Deursen, A. (author), Cleve, Anthony (author)When a web service or application evolves, its database schema — tables, constraints, and indices — often need to evolve along with it. Depending on the database, some of these changes require a full table lock, preventing the service from accessing the tables under change. To deal with this, web services are typically taken offline momentarily...conference paper 2017
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Fool, F. (author), de Wit, J. (author), Vos, H.J. (author), Bera, D. (author), de Jong, N. (author), Verweij, M.D. (author)The huge amount of data that needs to be transferred between probe and imaging system becomes a major issue when the data transfer capacity is limited, e.g. in handheld systems, wireless probes and miniaturized probes. The amount of data can be significantly reduced by using two-stage beamforming. The first stage consists of a fixed focus...conference paper 2018
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Massaad Mouawad, J.M. (author), van Willigen, D.M. (author), van Neer, P.L.M.J. (author), de Jong, N. (author), Pertijs, M.A.P. (author), Verweij, M.D. (author)Current ultrasonic clamp-on flow meters are based on single-element transducers that require manual calibration by aligning these to a fixed acoustic path. Moreover, the size and operational frequency of the transducers cannot be adapted to the parameters of the pipe and the liquid, which are in practice not precisely known a priory. A set of...conference paper 2019
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Fool, F. (author), Vos, H.J. (author), Shabanimotlagh, M. (author), Soozande, M. (author), Mozaffarzadeh, M. (author), Kim, T. (author), Kang, E. (author), Pertijs, M.A.P. (author), de Jong, N. (author), Verweij, M.D. (author)To accurately investigate the state of the carotid artery by the local haemodynamics and motion of the plaque using ultrasound, high-frame rate volumetric imaging is necessary. We have specifically designed a matrix array for this purpose. In this proceeding we will focus on imaging a volumetric flow profile using this matrix. For this...conference paper 2019
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Guo, P. (author), Fool, F. (author), Noothout, E.C. (author), Chang, Z.Y. (author), Vos, H.J. (author), Bosch, Johan G. (author), Verweij, M.D. (author), de Jong, N. (author), Pertijs, M.A.P. (author)The integration of 2D ultrasonic transducer arrays and pitch-matched ASICs has enabled the realization of various 3D ultrasound imaging devices in recent years [1]-[3]. As applications such as 3D intravascular ultrasonography, intra-cardiac echocardiography, and trans-fontanelle ultrasonography call for miniaturization and improved spatial...conference paper 2022
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Hopf, Y.M. (author), Ossenkoppele, B.W. (author), Soozande, M. (author), Noothout, E.C. (author), Chang, Z.Y. (author), Chen, C. (author), Vos, H.J. (author), Bosch, J.G. (author), Verweij, M.D. (author), de Jong, N. (author), Pertijs, M.A.P. (author)Intra-cardiac echography (ICE) probes (Fig. 32.2.1) are widely used in electrophysiology for their good procedure guidance and relatively safe application. ASICs are increasingly employed in these miniature probes to enhance signal quality and reduce the number of connections needed in mm-diameter catheters [1]-[5]. 3D visualization in real...conference paper 2022
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Guo, P. (author), Chang, Z.Y. (author), Noothout, E.C. (author), Vos, H.J. (author), Bosch, J. G. (author), de Jong, N. (author), Verweij, M.D. (author), Pertijs, M.A.P. (author)This paper presents a pitch-matched transceiver ASIC integrated with a 2-D transducer array for a wearable ultrasound device for transfontanelle ultrasonography. The ASIC combines 8-fold multiplexing, 4-channel micro-beamforming (μ BF) and sub-array-level digitization to achieve a 128-fold channel-count reduction. The μ BF is based on passive...conference paper 2023
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Yuan, Cadmus (author), de Jong, S.D.M. (author), van Driel, W.D. (author)The demand for rapid advancement in AI, mobile and automotive markets is pushing the boundaries of electronic packaging, including heterogeneous integration, high-power packages, and large-die packaging. Against this backdrop, machine learning technologies emerge as dynamic tools for correlation building and classification, revolutionizing the...conference paper 2024
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de Jong, Richard J. (author), Uysal, Faruk (author), Heiligers, Matijs J.C. (author), de Wit, Jacco (author)Camera systems are widely used for surveillance in the security and defense domains. The main advantages of camera systems are their high resolution, their ease of use, and the fact that optical imagery is easy to interpret for human operators. However, particularly when considering application in the defense domain, cameras have some...conference paper 2020
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de Jong, S.D.M. (author), Ghorbani Ghezeljehmeidan, A. (author), van Driel, W.D. (author)The ability to accurately predict the reliability and lifetime of electronics is of great importance to the industry. The failure of the solder joint is of particular interest for these predictions, because of their susceptibility to failure under thermo-mechanical stress. However, the experimental or even conventional simulation techniques...conference paper 2024
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Ossenkoppele, B.W. (author), Daeichin, V. (author), Rodriguez Hernandez, K.E. (author), de Jong, N. (author), Verweij, M.D. (author), Schouten, A.C. (author), Mugge, W. (author)Effective treatment of movement disorders requires thorough understanding of human limb control. Joint dynamics can be assessed using robotic manipulators and system identification. Due to tendon compliance, joint angle and muscle length are not proportional. This study uses plane-wave ultrasound imaging to investigate the dynamic relation...conference paper 2019
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Colas, Quorentin (author), Bantignies, Claire (author), Perroteau, Marie (author), Porcher, Nicolas (author), Vassal, Steeven (author), Bosch, Johan G. (author), de Jong, N. (author), Verweij, M.D. (author), Pertijs, M.A.P. (author)Three-dimensional ultrasound has initially been used to address volumetric imaging for diagnostic purposes and represents the leading-edge technological orientation in both transducer and IC (integrated circuit) architecture and design. However, new applications are coming up like biomarker measurements, preoperative navigation, real time...conference paper 2022
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Hosseini, Fatemeh (author), Mozaffarzadeh, M. (author), Mahlooiifar, Ali (author), Verweij, M.D. (author), de Jong, N. (author)In recent years, transcranial photoacoustic (TPA) imaging has become a popular modality for diagnosis of brain disorders. However, due to the presence of skull, TPA images are strongly degraded. Acoustically, this degradation is mainly categorized into the phase aberration, mode-converted shear waves, and multiple scattering. Previous studies...conference paper 2022
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Simbolon, L.M. (author), Pandey, D. S. (author), Tsekos, C. (author), de Jong, W. (author), Tassou, S. A. (author)The present study explored a thermochemical treatment method as an alternative approach to process animal feedlot (poultry litter). Fast pyrolysis of poultry litter experiments was conducted using a Pyroprobe 5200 reactor in the temperature range of 400-600 °C. The influence of reactor temperature on the yield of pyrolytic gases, condensate ...conference paper 2019
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Yang, Yujing (author), Brik, N.J. (author), de Jong, Peter (author), Gonçalves, M. (author)Framing is a crucial skill for connecting problem and solution spaces in the creative design process, both for individuals and teams. Frames are implicit in individuals’ cognitive thinking, but the creation of shared frames plays a vital role in collaborative design. Many studies have attempted to describe the framing process, but little is...conference paper 2019
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de Jong, P. (author), Remøy, H.T. (author), Heurkens, E.W.T.M. (author)Purpose – The Delft University of Technology adapted their sustainable mission and wants to apply it also to the corporate real estate management. To allow decision making based upon a more integral approach in a long term perspective a choice is made for total cost of ownership. The benevolent project managers, asset managers, facility managers...conference paper 2023
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Novosel, J. (author), Wang, Ziyuan (author), de Jong, Henk (author), Vermeer, K.A. (author), van Vliet, L.J. (author)Optical coherence tomography (OCT) is used to produce high-resolution three-dimensional images of the retina, which permit the investigation of retinal irregularities. In dry age-related macular degeneration (AMD), a chronic eye disease that causes central vision loss, disruptions such as drusen and changes in retinal layer thicknesses occur...conference paper 2016