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de Groot, Geiske (author)The non-linear relation between Evapotranspiration (ET) and the atmospheric moisture demand in terms of vapor pressure deficit (VPD) has been widely reported. Observations point towards a diverse range of potential drivers; however, without uncovering why the identified factors are found to control diurnal ET-VPD hysteresis. Modelling efforts...master thesis 2019
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Kraaijeveld, Michael (author), de Gruijl, David (author), Postma, Marco (author), Roos, Stefano (author), de Groot, Daan (author), van der Meijs, Emiel (author)In this thesis, the implementation of a passive, chipless, frequency coded Radio-Frequency Identification (RFID) tag for bedload transport studies is proposed. The proposed tag will be deployed in the semi-arid Río Colorado river, Bolivia with the aim to develop quantitative sediment transport models that relate transport to grain size. The...bachelor thesis 2019
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de Groot, Arthur (author)In recent decades, gas production has caused numerous human-induced shallow earthquakes in the province of Groningen, The Netherlands. The buildings in this area were not designed for these unexpected earthquake loads and have shown to be vulnerable. However, current strengthening measures are considered to be time-consuming, expensive, and a...master thesis 2019
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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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Abdi, Bahareh (author), van der Veen, A.J. (author), de Groot, N.M.S. (author), Hendriks, R.C. (author)In this study, we propose a novel approach for estimation of local activation times (LATs) in fractionated electrograms. Using an electrophysiological tissue model, we first formulate the electrogram array as a convolution of transmembrane currents with a distance kernel. These currents are more local activities and less affected by the...conference paper 2019
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Baptist, Martin J. (author), Gerkema, T. (author), van Prooijen, Bram (author), van Maren, D.S. (author), Colosimo, I. (author), Elschot, K. (author), de Groot, A. V. (author), Cleveringa, J. (author), van Eekelen, E. M.M. (author)We test an innovative approach to beneficially re-use dredged sediment to enhance salt marsh development. A Mud Motor is a dredged sediment disposal in the form of a semi-continuous source of mud in a shallow tidal channel allowing natural processes to disperse the sediment to nearby mudflats and salt marshes. We describe the various steps in...journal article 2019
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Janssen, Mariska M.H.P. (author), Harlaar, J. (author), Koopman, Bart (author), de Groot, Imelda J.M. (author)This study aimed to identify critical physiological outcome variables underlying reduced upper extremity task performance in Duchenne muscular dystrophy (DMD). These critical variables were used to propose an explanatory biophysical model of the upper extremity working mechanisms in DMD. Twenty-three DMD patients (8–21 years) participated in...journal article 2019
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Abdi, Bahareh (author), Hendriks, R.C. (author), van der Veen, A.J. (author), de Groot, N.M.S. (author)Diagnosis and treatment of atrial fibrillation can benefit from various signal processing approaches employed on atrial electrograms. However, the performance and interpretation of these approaches get highly degraded by far-field ventricular activities (VAs) that distort the morphology of the pure atrial activities (AAs). In this study, we...conference paper 2019
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Else-Hassing, J. (author), de Groot, P.A. (author), Marquenie, Vita R. (author), Pronk, J.T. (author), Daran, J.G. (author)The organic compound 2-phenylethanol (2PE) has a pleasant floral scent and is intensively used in the cosmetic and food industries. Microbial production of 2PE by phenylalanine bioconversion or de novo biosynthesis from sugar offer sustainable, reliable and natural production processes compared to chemical synthesis. Despite the ability of...journal article 2019
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Iskander-Rizk, Sophinese (author), Kruizinga, P. (author), Beurskens, Robert (author), Springeling, Geert (author), Mastik, Frits (author), de Groot, N.M.S. (author), Knops, Paul (author), van der Steen, A.F.W. (author), van Soest, Gijs (author)In interventional electrophysiology, catheter-based radiofrequency (RF) ablation procedures restore cardiac heart rhythm by interrupting aberrant conduction paths. Real-time feedback on lesion formation and post-treatment lesion assessment could overcome procedural challenges related to ablation of underlying structures and lesion gaps. This...journal article 2019
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Limodio, G. (author), Yang, G. (author), Ge, H. (author), Procel Moya, P.A. (author), de Groot, Y. (author), Mazzarella, L. (author), Isabella, O. (author), Zeman, M. (author)In this work we develop a rear emitter silicon solar cell integrating carrier-selective passivating contacts (CSPCs) with different thermal budget in the same device. The solar cell consists of a B-doped poly-Si/SiO<sub>x</sub> hole collector and an i/n hydrogenated amorphous silicon (a-Si:H) stack acting as electron collector placed on the...journal article 2019
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Abdi, Bahareh (author), Hendriks, R.C. (author), van der Veen, A.J. (author), de Groot, Natasja M.S. (author)Finding the hidden parameters of the cardiac electrophysiological model would help to gain more insight on the mechanisms underlying atrial fibrillation, and subsequently, facilitate the diagnosis and treatment of the disease in later stages. In this work, we aim to estimate tissue conductivity from recorded electrograms as an indication of...journal article 2019
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de Groot, Sjoerd (author)This Master thesis presents an improved model for the transport of fine suspended sediment (SPM) in the Rhine region of fresh water influence (ROFI) and in the Port of Rotterdam. It is known that the transport of SPM in the Rotterdam harbor depends on marine as well as fluvial processes. SPM transport inside the harbor has been modelled in the...master thesis 2018
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Vinke, Elisabeth J. (author), de Groot, Marius (author), Venkatraghavan, Vikram (author), Klein, S. (author), Niessen, W.J. (author), Ikram, M. Arfan (author), Vernooij, Meike W. (author)With aging, the brain undergoes several structural changes. These changes reflect the normal aging process and are therefore not necessarily pathologic. In fact, better understanding of these normal changes is an important cornerstone to also disentangle pathologic changes. Several studies have investigated normal brain aging, both cross...journal article 2018
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de Groot, Sjoerd (author)The goal of this thesis is to present a framework which can be used to optimize the observer and controller performance by placement of sensors and actuators on a continuous domain. The framework provides choices of model structure, cost functions and optimization methods to perform the placement. Systems which would be suitable for the use of...master thesis 2018
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- de Groot, Marit (author) master thesis 2018
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Levisson, Mark (author), Patinios, Constantinos (author), Hein, Sascha (author), de Groot, P.A. (author), Daran, J.G. (author), Martens, Stefan (author), Hall, Robert D. (author), Beekwilder, Jules (author)Background: Anthocyanins are polyphenolic pigments which provide pink to blue colours in fruits and flowers. There is an increasing demand for anthocyanins, as food colorants and as health-promoting substances. Plant production of anthocyanins is often seasonal and cannot always meet demand due to low productivity and the complexity of the...journal article 2018
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de Groot, Julian (author)In the Netherlands a task-force, supported by the institute of curriculum development, Stichting Leerplan Ontwikkeling (SLO), has been assembled to define core objectives and learning goals for digital literacy that are to be finalized by 2019. The SLO defined digital literacy with the following four elements: ICT basic skills, computational...master thesis 2018
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de Groot, Dennis (author)An increase in apparent mode II fracture toughness in Fiber Reinforced Polymers has been found from modified Transverse Crack Tension (mTCT) tests with compressive stresses added orthogonal to the delamination plane. Numerical reproduction of these results has not yet led to a good understanding of the reasons for this behavior. Currently, an...master thesis 2018
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Bouzas, Vasileios (author), de Groot, Rob (author), Sajadianjaghargh, Melika (author), Tzounakos, Nikos (author), Wu, Teng (author)In this report, we briefly summarize the methodology behind the development of a web application for the municipality of the Hague. This application was developed by a group of students during the Synthesis Project (academic period 2017-2018) of the MSc Geomatics programme of TU Delft University, the Netherlands. The main purpose of this...student report 2018