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Lamers, M.W.P.E. (author), Bronsveld, Paula (author), Liu, Ji (author), Weeber, A.W. (author)High quality passivating contacts can be realized by using the combination of a thin interfacial oxide (SiO<sub>x</sub>) and doped polysilicon (polySi). Recombination losses are minimized by providing very good passivation between the thin hydrogenated oxide and the cSi, a high field effect by the highly doped polySi [1-2], combined with the...conference paper 2018
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Apostolidis, P. (author), Liu, X. (author), Kasbergen, C. (author), van de Ven, Martin (author), Scarpas, Athanasios (author)Induction assisted chemical hardening (curing) or induction hardening is a novel in situ hardening technique for thermoset modified bituminous materials that maintains most of the advantages of natural chemical hardening while eliminating the possible restrictions of longer curing times at lower temperatures. In particular, induction heating can...conference paper 2018
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Apostolidis, P. (author), Pipintakos, G. (author), Liu, X. (author), van de Ven, Martin (author), Erkens, S. (author), Scarpas, Athanasios (author)Epoxy modified bitumen (EMB) is a promising technology for long lasting paving materials ensuring higher resistance to rutting, oxygen- and moisture-induced damage. In this paper, an analysis of the chemical reactions that take place during the chemical hardening process (curing) of epoxy modified bitumen<br/>was conducted by means of Fourier...conference paper 2018
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Li, Q. (author), Liu, Xinyuan (author), Eitelberg, G. (author), Veldhuis, L.L.M. (author)This paper addresses the design of swirl recovery vanes for propeller propulsion in tractor configuration at cruise conditions using numerical tools. A multi-fidelity optimization framework is formulated for the design purpose, which exploits low-fidelity potential flow-based analysis results as input for high-fidelity Euler equation-based...conference paper 2018
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Xu, S. (author), Liu, X. (author), Tabakovic, A. (author), Schlangen, E. (author)Incorporating self-healing technology in asphalt pavement has been demonstrated to have great potential to prolong its service life. To this aim, the calcium alginate capsules encapsulating rejuvenator were manufactured and proved to have sufficient thermal stability and mechanical resistance to survive the asphalt production and compaction...conference paper 2018
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Liu, H. (author)Digital elevation models (DEM) are widely used in various distributed hydrological models. The stream network can be extracted from it so that runoff routing can be calculated. With the advent of remote sensing and computing technologies, the computation based on DEM with high resolution becomes possible. However, there still exist regions with...conference paper 2018
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Markine, V.L. (author), Liu, X. (author), Mashal, Abdul Ahad (author), Ma, Y. (author)The paper presents an integrated approach for analysis and improvement of performance of railway crossings. The approach consists of a detailed finite element (FE) model of a wheel rolling over a crossing (validated against the measured crossing accelerations) and experimental tools installed on the crossings in situ. The studied crossings are...conference paper 2017
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Wu, Yue (author), Liu, Xiuming (author), Li, Q. (author), Chen, Boxuan (author), Luo, Peng (author), Pronk, Arno (author), Mergny, Elke (author)By using inflatable moulds and then spraying cellulose-water mixture, one ice dome and two ice towers were built in Harbin in December 2016. During the whole process, form-finding of the inflatable moulds as well as the construction of these ice composite shell structures are very important for the final results.<br/>The mould for the ice dome...conference paper 2017
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Wang, H. (author), Liu, Zhigang (author), Nunez, Alfredo (author), Dollevoet, R.P.B.J. (author)For the condition monitoring of railway catenaries, the potential utilization of pantograph head (pan-head) vertical acceleration instead of pantograph-catenary contact force is discussed in this paper. In order to establish a baseline of the pan-head acceleration before it can be used for health condition monitoring, one of the essential...conference paper 2017
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- van der Hoek, J.P. (author), Mol, S (author), Ahmad, J.I. (author), Liu, G. (author), Medema, G.J. (author) conference paper 2017
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Jing, R. (author), van Lent, Diederik (author), Kasbergen, C. (author), Scarpas, Athanasios (author), Liu, X. (author), Erkens, S. (author)When oxygen diffuses in a bituminous film, it also reacts, simultaneously, with the constituents of the bitumen and as such it is gradually depleted. This depletion process masks the characteristics of the actual diffusion process and complicates the determination of the diffusion coefficient needed for computation of oxygen concentration and...conference paper 2017
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Wang, H. (author), Nunez, Alfredo (author), Dollevoet, R.P.B.J. (author), Liu, Zhigang (author), Chen, Junwen (author)This study proposes a Bayesian network (BN) dedicated for the intelligent condition monitoring of railway catenary systems. It combines five types of measurements related to catenary condition, namely the contact wire stagger, contact wire height, pantograph head displacement, pantograph head vertical acceleration and pantograph-catenary contact...conference paper 2017
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- Aldin, Zainab (author), Nedeljković, Marija (author), Lukovic, M. (author), Liu, Jiahua (author), Blom, Kees (author), Ye, G. (author) conference paper 2017
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Zhou, C. (author), Liu, X. (author), Apostolidis, P. (author)Low Temperature Asphalt (LTA) technologies are utilized in asphalt pavement industry to lower energy demands and greenhouse gas emission during mixing and construction processes. Although these technologies are currently available and hope to demonstrate similar performance with Hot Mix Asphalt (HMA) mixes, LTA shows more sensitive than HMA to...conference paper 2017
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Liu, Y. (author), Arntsen, B (author), van der Neut, J.R. (author), Wapenaar, C.P.A. (author)A standard procedure in processing vertical seismic profile (VSP) data is the separation of up-and downgoing wavefields. We show that the up-down wavefields in boreholes can be reconstructed using only singlecomponent borehole data, given that a full set of surface reflection data is also available. No medium parameters are required. The method...conference paper 2017
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Liu, Zhihao (author), Shekhar, A. (author), Ramirez Elizondo, L.M. (author), Bauer, P. (author)This paper provides an empirical study on series arc behavior in low voltage dc microgrids. The response of an R-L-C dc microgrid abstraction towards series arcs is studied experimentally for varying grid inductance, dc voltages, load capacitances and load currents. In order to account for the stochastic nature of arcs, experiments are...conference paper 2017
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Liu, Zhihao (author), Shekhar, A. (author), Ramirez Elizondo, L.M. (author), Bauer, P. (author)Localization of series arc faults in dc microgrids is an important requirement to guarantee operational safety and uninterrupted power to end users. In the previous EPE-ECCE proceeding, a theoretical proof was provided for the selective series arc detection using a novel algorithm. In the current paper, the concept is validated by showcasing...conference paper 2017
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Wang, X. (author), Liu, D. (author), Lahaye, D.J.P. (author), Polinder, H. (author), Ferreira, Jan Abraham (author)The brushless doubly-fed induction machine (DFIM) has great potential as a variable-speed generator for wind turbine applications. This special machine has a richer space-harmonic spectrum due to its special nested-loop rotor construction compared with conventional induction machines. It may result in higher iron losses, higher torque ripple and...conference paper 2017
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Yu, Minjing (author), Liu, Yong-Jin (author), Wang, C.C. (author)Self-reconfigurable modular robots (SRRobot) that can change their shape and function in different environments according to different tasks have caught a lot of attention recently. Most existing prototypes use professional electronic components with relatively expensive cost and high barrier of fabrication. In this paper, we present a low-cost...conference paper 2017
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Goderie, C.J.M. (author), Alashrafov, R. (author), Jockin, Pieter (author), Liu, Lu (author), Liu, Xin (author), Cidota, M.A. (author), Lukosch, S.G. (author)For a better understanding of how different diseases (e.g. neurovascular diseases, neurodegenerative diseases, and musculoskeletal pain conditions) affect human motor function, a uniform, standardized and objective evaluation is a desirable goal expressed within the clinical community. We explore the capabilities of an augmented reality (AR)...conference paper 2017