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Huijgens, H.K.M. (author), Rastogi, A. (author), Mulders, E.A. (author), Gousios, G. (author), van Deursen, A. (author)In 2014, a Microsoft study investigated the sort of questions that data science applied to software engineering should answer. This resulted in 145 questions that developers considered relevant for data scientists to answer, thus providing a research agenda to the community. Fast forward to five years, no further studies investigated whether the...conference paper 2020
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Zhang, H. (author), Karmakar, S. (author), Breems, Lucien J. (author), Sandifort, Quino (author), Berkhout, Marco (author), Makinwa, K.A.A. (author), Fan, Q. (author)This article presents a Class-D audio amplifier for automotive applications. Low electromagnetic interference (EMI) and, hence, smaller LC filter size are obtained by employing a fully differential multilevel output stage switching at 4.2 MHz. A modulation scheme with minimal switching activity at zero input reduces idle power, which is...journal article 2020
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Strategy to mitigate the dipole interfacial states in (i)a-Si:H/MoOxpassivating contacts solar cellsMazzarella, L. (author), Alcañiz Moya, A. (author), Kawa, Eliora (author), Procel Moya, P.A. (author), Zhao, Y. (author), Han, C. (author), Yang, G. (author), Zeman, M. (author), Isabella, O. (author)Electrical simulations show that the dipole formed at (i)a-Si:H/MoOx interface can explain electrical performance degradation. We experimentally manipulate this interface by a plasma treatment (PT) to mitigate the dipole strength without harming the optical response. The optimal PT + MoOx stack results in strongly improved electrical...conference paper 2020
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Limodio, G. (author), Bartesaghi, Davide (author), Hietkamp, Maurice (author), Rajagopal, D. (author), Nawaratne, Sajith (author), Hamers, Edward (author), Smets, A.H.M. (author)In this work we focus on texturing Al substrate in order to employ the modulated surface texturing approach for thin-film, flexible, micromorph solar cells. We deployed two different methods to induce micro-craters in Al foil, i) bare Al etching by KOH and ii) AZO sacrificial layer etched in KOH. After modelling the etching kinetics of KOH on...conference paper 2020
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Acar, İlhan E. (author), Lores-Motta, Laura (author), Colijn, Johanna M. (author), Meester-Smoor, Magda A. (author), Verzijden, Timo (author), Cougnard-Gregoire, Audrey (author), Ajana, Soufiane (author), van den Akker, E.B. (author), van Duijn, C. (author)Purpose: The current study aimed to identify metabolites associated with age-related macular degeneration (AMD) by performing the largest metabolome association analysis in AMD to date, as well as aiming to determine the effect of AMD-associated genetic variants on metabolite levels and investigate associations between the identified...journal article 2020
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Timbergen, Milea J.M. (author), Starmans, Martijn P.A. (author), Padmos, Guillaume A. (author), Grünhagen, Dirk J. (author), van Leenders, Geert J.L.H. (author), Hanff, D. F. (author), Niessen, W.J. (author), Klein, S. (author), Visser, J.J. (author)Purpose: Diagnosing desmoid-type fibromatosis (DTF) requires an invasive tissue biopsy with β-catenin staining and CTNNB1 mutational analysis, and is challenging due to its rarity. The aim of this study was to evaluate radiomics for distinguishing DTF from soft tissue sarcomas (STS), and in DTF, for predicting the CTNNB1 mutation types....journal article 2020
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Yang, M. (author), Coutino, Mario (author), Isufi, E. (author), Leus, G.J.T. (author)While regularization on graphs has been successful for signal reconstruction, strategies for controlling the bias-variance trade-off of such methods have not been completely explored. In this work, we put forth a node varying regularizer for graph signal reconstruction and develop a minmax approach to design the vector of regularization...conference paper 2020
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Steiner, J. (author), Viré, A.C. (author), Benetti, F. (author), Timmer, W.A. (author), Dwight, R.P. (author)Standard passive aerodynamic flow control devices such as vortex generators and gurney flaps have a working principle that is well understood. They increase the stall angle and the lift below stall and are mainly applied at the inboard part of wind turbine blades. However, the potential of applying a rigidly fixed leading-edge slat element at...journal article 2020
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Han, C. (author), Yang, G. (author), Montes, Ana (author), Procel Moya, P.A. (author), Mazzarella, L. (author), Zhao, Y. (author), Eijt, S.W.H. (author), Schut, H. (author), Zhang, Xiaodan (author), Zeman, M. (author), Isabella, O. (author)In high-efficiency silicon solar cells featuring carrier-selective passivating contacts based on ultrathin SiOx/poly-Si, the appropriate implementation of transparent conductive oxide (TCO) layers is of vital importance. Considerable deterioration in passivation quality occurs for thin poly-Si-based devices owing to the sputtering damage...journal article 2020
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Jahanbakhshi, Farzaneh (author), Mladenović, Marko (author), Kneschaurek, Ekaterina (author), Merten, Lena (author), Gelvez Rueda, M.C. (author), Ahlawat, Paramvir (author), Li, Yang (author), Carlsen, B.I. (author), Grozema, F.C. (author)Layered hybrid perovskites comprising adamantyl spacer (A) cations based on the A<sub>2</sub>FA<sub>n−1</sub>Pb<sub>n</sub>I<sub>3n+1</sub>(n= 1-3, FA = formamidinium) compositions have recently been shown to act as promising materials for photovoltaic applications. While the corresponding perovskite solar cells show performances and...journal article 2020
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Towards language-parametric semantic editor services based on declarative type system specificationsPelsmaeker, D.A.A. (author), van Antwerpen, H. (author), Visser, Eelco (author)New programming languages often lack good IDE support, as developing advanced semantic editor services takes additional effort. In previous work we discussed the operational requirements of a constraint solver that leverages the declarative type system specification of a language to provide language-parametric semantic editor services. In...conference paper 2019
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- Ziengs, A.H. (author), Yorke-Smith, N. (author) conference paper 2019
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Bijmans, H.L.J. (author), Booij, T.M. (author), Dörr, C. (author)Since the release of a browser-based cryptominer by Coinhive in 2017, the easy use of these miners has skyrocketed illicit cryptomining in 2017 and continued in 2018. This method of monetizing websites attracted website owners, as well as criminals seeking new ways to earn a profit. In this paper, we perform two large studies into the world...conference paper 2019
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Dahlberg, E.A. (author), Skrzypczyk, M.D. (author), Coopmans, T.J. (author), Wubben, L.C.J. (author), Rozpdek, Filip (author), Pompili, M. (author), Stolk, A.J. (author), Pawełczak, Przemysław (author), Knegjens, R.J. (author), de Oliveira Filho, J.A. (author), Hanson, R. (author), Wehner, S.D.C. (author)Quantum communication brings radically new capabilities that are provably impossible to attain in any classical network. Here, we take the first step from a physics experiment to a quantum internet system. We propose a functional allocation of a quantum network stack, and construct the first physical and link layer protocols that turn ad-hoc...conference paper 2019
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Pari, M. (author), Swart, W. (author), van Gijzen, M.B. (author), Hendriks, M.A.N. (author), Rots, J.G. (author)Sequentially linear analysis (SLA), an event-by-event procedure for finite element (FE) simulation of quasi-brittle materials, is based on sequentially identifying a critical integration point in the FE model, to reduce its strength and stiffness, and the corresponding critical load multiplier (λ <sub>crit</sub>), to scale the linear analysis...journal article 2019
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Ramachandrappa Venkatesh, M. (author), Sachdeva, S. (author), El Mansouri, B. (author), Wei, J. (author), Bossche, A. (author), Bosma, D. (author), de Smet, L.C.P.M. (author), Sudhölter, Ernst J. R. (author), Zhang, Kouchi (author)Capacitors made of interdigitated electrodes (IDEs) as a transducer platform for the sensing of volatile organic compounds (VOCs) have advantages due to their lower power operation and fabrication using standard micro-fabrication techniques. Integrating a micro-electromechanical system (MEMS), such as a microhotplate with IDE capacitor,...journal article 2019
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Jesus de Moraes, R. (author), de Zeeuw, W. (author), R. P. Rodrigues, José (author), Hajibeygi, H. (author), Jansen, J.D. (author)We introduce a semi-analytical iterative multiscale derivative computation methodology that allows for error control and reduction to any desired accuracy, up to fine-scale precision. The model responses are computed by the multiscale forward simulation of flow in heterogeneous porous media. The derivative computation method is based on the...journal article 2019
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Zong, H. (author), van Pelt, T. (author), Kotsonis, M. (author)Abstract: An array of 26 plasma synthetic jet actuators (PSJA) is flush-mounted on a NACA-0015 airfoil model to control the leading-edge flow separation at moderate Reynolds number (Re<sub>c</sub>= 1.7 × 10 <sup>5</sup>). The stall angle of this airfoil is postponed from 15. 5 <sup>∘</sup> to approximately 22 <sup>∘</sup>, and the peak lift...journal article 2018
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Weimer, D. R. (author), Mlynczak, M. G. (author), Emmert, J. T. (author), Doornbos, E.N. (author), Sutton, E.H. (author), Hunt, L. A. (author)This paper presents measurements of the amplitudes and timings of the combined, annual, and semiannual variations of thermospheric neutral density, and a comparison of these density variations with measurements of the infrared emissions from carbon dioxide and nitric oxide in the thermosphere. The density values were obtained from...journal article 2018
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Yu, Y. (author), Narayan, N.S. (author), Vega Garita, V.E. (author), Popovic, J. (author), Qin, Z. (author), Wagemaker, M. (author), Bauer, P. (author), Zeman, M. (author)The past few years have seen strong growth of solar-based off-grid energy solutions such as Solar Home Systems (SHS) as a means to ameliorate the grave problem of energy poverty. Battery storage is an essential component of SHS. An accurate battery model can play a vital role in SHS design. Knowing the dynamic behaviour of the battery is...journal article 2018