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Wang, Xinyue (author), Zeng, Zejun (author), Zhang, Jing (author), Zhang, Kouchi (author), Liu, Pan (author)With the increasing application of wide bandgap materials such as silicon carbide and gallium nitride in power devices, the working temperature of power devices has been pushed further. Therefore, it brings higher requirements for packaging materials. Sintered silver is a widely accepted chip connection material. However, silver suffers from...conference paper 2022
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Li, Z. (author), Lin, Yunlong (author), Cheng, Gong (author), Wang, X. (author), Liu, Qi (author), Gong, Jianwei (author), Lu, Chao (author)Precisely modeling interactions and accurately predicting trajectories of surrounding vehicles are essential to the decision-making and path-planning of intelligent vehicles. This paper proposes a novel framework based on ensemble learning to improve the performance of trajectory predictions in interactive scenarios. The framework is termed...conference paper 2022
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Liu, Zhenyu (author), Fu, Runnan (author), Wang, Linjun (author), Jin, Yuzhen (author), Papakostas, Theodoros (author), Mainelli, Xenia Una (author), Voûte, R.L. (author), Verbree, E. (author)Because unknown interior layouts can have serious consequences in time-sensitive situations, crisis response teams request many potential solutions for visualizing indoor environments in crisis scenarios. This research uses a game engine to directly visualize point cloud data input of indoor environments for generating clear interaction between...conference paper 2021
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Liu, Hao (author), Ye, Hanting (author), Yang, J. (author), Wang, Q. (author)Motivated by the trend of realizing full screens on devices such as smartphones, in this work we propose through-screen sensing with visible light for the application of fingertip air-writing. The system can recognize handwritten digits with under-screen photodiodes as the receiver. The key idea is to recognize the weak light reflected by the...conference paper 2021
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Wang, H. (author), Apostolidis, P. (author), Zhang, H. (author), Liu, X. (author), Erkens, S. (author), Scarpas, Athanasios (author)Microwave heating is a promising heating technology for the maintenance, recycling and deicing of pavement structures. Many experimental studies have been conducted to investigate the microwave heating properties of asphalt mixtures in the laboratory. However, very few studies investigated the application of microwave heating on asphalt...conference paper 2020
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Apostolidis, P. (author), Wang, H. (author), Zhang, H. (author), Liu, X. (author), Erkens, S. (author), Scarpas, Athanasios (author)Oxidative aging is a complex phenomenon in bitumen and its fundamental understanding is needed to optimize paving materials with long-lasting characteristics. This research reports on a diffuse-reaction model for predicting the oxidation of bituminous binders over time and under different conditions. As known, the oxidation of bitumen is...conference paper 2020
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Wang, H. (author), Apostolidis, P. (author), Zhang, H. (author), Liu, X. (author), Erkens, S. (author), Scarpas, Athanasios (author)Fundamental models should be developed and utilized in order to facilitate the chemo-mechanical design of modified binder systems for paving applications but not only. Especially, the fact that the incorporation of new chemical substances used as bio-based modifiers or alternative binders is attracting great interest to replace traditional...conference paper 2020
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Liu, Dong (author), Hasanov, Urfan (author), Ye, Changqing (author), Gou, Xiaofan (author), Wang, X. (author)Compared with partially superconducting generators, fully superconducting generators (F-SCGs) can further increase the torque density in large direct-drive wind turbine applications. Design trends of F-SCGs intend to increase the electrical loading by applying superconducting wires and boost the current density in the armature winding to meet...conference paper 2020
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Zhong, J. (author), Liu, Zhigang (author), Wang, H. (author), Liu, W. (author), Yang, Cheng (author), Nunez, Alfredo (author)Brace Sleeve (BS) plays an essential role in connecting and fixing cantilevers of railway catenary systems. It needs to be monitored to ensure the safety of railway operations. In the literature, image processing techniques that can localize BSs from inspection images are proposed. However, the boxes produced by existing methods can contain...conference paper 2020
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Liu, Dong (author), Song, Xiaowei (author), Wang, X. (author)In recent years, permanent magnet superconducting (PMSC) generators have become a candidate for applying superconducting (SC) generators in large direct-drive wind turbines. This configuration keeps the SC armature winding and its cooling system stationary and eliminates rotational cooling couplings. However, the low excitation by permanent...conference paper 2020
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Liu, W. (author), Liu, Zhigang (author), Nunez, Alfredo (author), Wang, Liyou (author), Liu, Kai (author), Lyu, Yang (author), Wang, H. (author)The goal of this paper is to evaluate from a multi-objective perspective the performance on the detection of catenary support components when using state-of-the-art deep convolutional neural networks (DCNNs). The detection of components is the first step towards a complete automatized monitoring system that will provide actual information about...conference paper 2018
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Apostolidis, P. (author), Liu, X. (author), Wang, H. (author), van de Ven, Martin (author), Scarpas, Athanasios (author)Asphaltic mixes are self-healing materials since they have the capacity to close internal microcracks at higher temperatures or under external force. To trigger their self-healing, asphalt mixes modified with inductive agents can be heated and in that way healed through applying alternating magnetic fields with the aid of an induction coil and...conference paper 2018
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Liu, S. (author), Geng, Yingsan (author), Popov, M. (author), Wang, Jianhua (author), Liu, Zhiyuan (author), Zhang, Bojian (author)The vacuum interrupter is used as the key component of an active DCCB due to its excellent interruption and dielectric recovery characteristics after current zero. The vacuum interrupter can only interrupt the fault currents below the limitation of a critical di/dt and TIV, otherwise it causes a reignition and the interruption failure. In...conference paper 2018
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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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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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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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Wang, X. (author), Liu, D. (author), Lahaye, D.J.P. (author), Polinder, H. (author), Ferreira, Jan Abraham (author)Permanent-magnet machines with fractional slot concentrated windings are easy to manufacture. Their popularity therefore is steadily increasing. Without a proper design, however, the induced eddy-current losses in the solid rotor get rather high. The modeling and the prediction of eddy-current losses for these machines are thus very important...conference paper 2016
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Menenti, M. (author), Li, X. (author), Wang, J. (author), Vereecken, H. (author), Li, J. (author), Mancini, M. (author), Liu, Q. (author), Jia, L. (author), Li, J. (author), Kuenzer, C. (author), Huang, S. (author), Yesou, H. (author), Wen, J. (author), Kerr, Y. (author), Cheng, X. (author), Gourmelen, N. (author), Ke, C. (author), Ludwig, R. (author), Lin, H. (author), Eineder, M. (author), Ma, Y. (author), Su, Z.B. (author)Ten Dragon 3 projects deal with hydrologic and cryosphere processes, with a focus on the Himalayas and Qinghai – Tibet Plateau, but not limited to that. At the 1st Dragon 3 Progress Symposium in 2013 a significant potential for a better and deeper integration appeared very clearly and we worked out an overview of the ten projects identifying...conference paper 2015
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- Tao, Y. (author), Gao, D.W. (author), Wang, H.Y. (author), Zhang, X. (author), Ghasimi, S.M.D. (author), Ozgun, H. (author), Ersahin, M.E. (author), Zhou, Z.B. (author), Liu, G. (author), Temudo, M.F. (author), Kloek, J. (author), Spanjers, H. (author), De Kreuk, M.K. (author), Van Lier, J.B. (author) conference paper 2014
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