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Hu, D. (author), Wang, Chieh (author), Li, Z. (author), Gupta, N. (author), Poelma, René H. (author), Shi, Ziliang (author), Fan, J. (author), Zhang, Kouchi (author)
Driven by the increasing demand for high-power systems, ceramic substrates have received more attention for handling higher power density. Warpage in active metal brazed (AMB) ceramic substrate becomes a critical issue as it can deteriorate the reliability performance. This study comprises three phases, including investigation of the cause of...
conference paper 2024
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Tang, Hongyu (author), Shi, Weiqi (author), Zhang, Rongjun (author), Fan, J. (author), Zhang, Kouchi (author)
Tungsten disulfide (WS2) has recently attracted considerable attention owing to its excellent physical, chemical, electronic, and optical properties, leading to increased research into its applications in electronic and optoelectronic devices. However, the oxidation of 2D material affects significantly its optical and electronic properties...
conference paper 2024
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Ruzzi, Alessandro (author), Shi, X. (author), Wang, Xi (author), Li, Gengyan (author), De Mello, Shalini (author), Chang, Hyung Jin (author), Zhang, X. (author), Hilliges, Otmar (author)
We propose GazeNeRF, a 3D-aware method for the task of gaze redirection. Existing gaze redirection methods operate on 2D images and struggle to generate 3D consistent results. Instead, we build on the intuition that the face region and eyeballs are separate 3D structures that move in a coordinated yet independent fashion. Our method leverages...
conference paper 2023
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Blanco, Adrian Fuertes (author), Shi, Z. (author), Roy, Debraj (author), Zhao, Zhiming (author)
The emergence of blockchain technologies has created the possibility of transforming business processes in the form of immutable agreements called smart contracts. Smart contracts suffer from a major limitation; they cannot authenticate the trustworthiness of real-world data sources, creating the need for intermediaries called oracles....
conference paper 2023
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Shi, Z. (author), Su, Qingtian (author), Veljkovic, M. (author)
In recent years, ultra-high performance concrete (UHPC) has been introduced in the design of orthotropic steel decks (OSD) to reduce the risk of fatigue cracking. To investigate the fatigue behaviour and fatigue damage process of the orthotropic steel-UHPC composite bridge deck, a fullscale specimen was designed and tested under cyclic loading....
conference paper 2022
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Grazian, F. (author), Shi, W. (author), Soeiro, Thiago B. (author), Dong, J. (author), Bauer, P. (author)
When considering EV wireless charging that uses inductive power transfer with magnetic resonance, the coils’ current distortion must be minimized to guarantee compliance with the electromagnetic compatibility limits on the radiated magnetic field set by the relevant industrial standards. This paper analyzes the current distortion caused by...
conference paper 2022
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Shi, Z. (author), Veljkovic, M. (author), Su, Qingtian (author)
In order to investigate load-carrying capacity, ductility and plastic development of orthotropic steel-concrete composite deck used in composite girder cable-stayed bridge, six single-point-loaded simply-supported orthotropic steel-concrete composite decks with varying axial compressive forces and different concrete grades were designed and...
conference paper 2022
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Song, Minyoung (author), Huang, Yu (author), Shen, Yiyu (author), Shi, Chengyao (author), Breeschoten, Arjan (author), Konijnenburg, Mario (author), Visser, Huib (author), Romme, J.P.A. (author), Dutta, Barundeb (author), Alavi, S.M. (author)
Intra-cortical extracellular neural sensing is being rapidly and widely applied in several clinical research and brain-computer interfaces (BCIs), as the number of sensing channels continues to double every 6 years. By distributing multiple high-density extracellular micro-electrode arrays (MEAs) in vivo across the brain, each with 1000's of...
conference paper 2022
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Shi, Zhenguo (author), Lothenbach, Barbara (author)
Using Al-rich supplementary cementitious materials to partially replace Portland cement is a well-established empirical approach to mitigate expansion of concrete caused by alkali-silica reaction (ASR). However, the mechanisms behind it are still not completely understood. Synthesis of ASR products in the laboratory provides a unique opportunity...
conference paper 2021
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Shi, W. (author), Grazian, F. (author), Bandyopadhyay, S. (author), Dong, J. (author), Soeiro, Thiago B. (author), Bauer, P. (author)
This paper aims to investigate the dynamic charging performance of an 11 kW dynamic inductive power transfer (DIPT) system. First, a multi-objective optimization (MOO) method is proposed to find the Pareto front of the DD charging pad. Then, the optimal design with a 96.82% efficiency is selected as the target design for the DIPT system....
conference paper 2021
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Grazian, F. (author), Shi, W. (author), Soeiro, Thiago B. (author), Dong, J. (author), van Duijsen, P.J. (author), Bauer, P. (author)
In high-power wireless battery charging that uses inductive power transfer, a considerable amount of power losses are located in the transmitter and receiver coils because they carry high resonant currents and typically have a loose coupling between them which increases eddy current losses. Therefore, the nominal operation needs to be chosen...
conference paper 2020
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Shi, W. (author), Grazian, F. (author), Dong, J. (author), Soeiro, Thiago B. (author), Bauer, P. (author)
This paper aims to investigate the radiated magnetic field by 11 kW inductive power transfer (IPT) systems used for the charging of electric vehicles. Two reference designs suggested by SAE J2954 are studied. Both designs are analysed to obtain the coils winding currents, and 3D FEM models are built in COMSOL without considering the car chassis,...
conference paper 2020
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Grazian, F. (author), Shi, W. (author), Soeiro, Thiago B. (author), Dong, J. (author), Bauer, P. (author)
In inductive power transfer applications, it is possible to ensure high efficiency of the main coils by operating at the optimum load. Since the optimum load depends on the coupling between the main coils, the operation needs to be adapted to match this case at different alignment conditions. This paper proposes a method to keep the optimum load...
conference paper 2020
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Grazian, F. (author), Shi, W. (author), Soeiro, Thiago B. (author), Dong, J. (author), van Duijsen, P.J. (author), Bauer, P. (author)
Industrial wireless charging systems use standardized coils to guarantee interoperability between different manufacturers. In combination with these coils, the compensation network can still be designed and optimized. This paper explains the step-by-step design of the compensation network for a 7.7 kW wireless charging system (power class WPT2),...
conference paper 2020
document
Shi, W. (author), Grazian, F. (author), Dong, J. (author), Soeiro, Thiago B. (author), Bauer, P. (author)
This paper proposes a new method of electric vehicles detection (EVD) and foreign objects detection (FOD) for dynamic inductive power transfer (DIPT) systems. The proposed detection method applies both passive coil sets (PCSs) and active coil sets (ACSs) to achieve both EVD and FOD with a high detection sensitivity. The operation mechanisms...
conference paper 2020
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Shi, X. (author), Khademi, S. (author), van Gemert, J.C. (author)
Understanding how cities visually differ from each others is interesting for planners, residents, and historians. We investigate the interpretation of deep features learned by convolutional neural networks (CNNs) for city recognition. Given a trained city recognition network, we first generate weighted masks using the known Grad-CAM technique...
conference paper 2019
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Shi, W. (author), Dong, J. (author), Bandyopadhyay, S. (author), Grazian, F. (author), Soeiro, Thiago B. (author), Bauer, P. (author)
This paper aims to identify the difference between foreign object (FO) and misalignment in terms of their influence on inductive power transfer (IPT) systems. This is performed through magnetic and equivalent circuit analysis of the mutual inductance, primary input impedance, charging pad terminal impedance and current harmonics. Experiment...
conference paper 2019
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Grazian, F. (author), Shi, W. (author), Dong, J. (author), van Duijsen, P.J. (author), Soeiro, Thiago B. (author), Bauer, P. (author)
In the next decades, the number of electric vehicles (EVs) for private use is predicted to increase considerably. Charging the EVs through wireless power transfer (WPT), i.e. wireless charging, has the potential to shorten charging duration of EVs batteries through dynamic charging and it would also improve the safety of static charging in case...
conference paper 2019
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Zhang, Jiyi (author), Li, Gang (author), Liu, Youzhi (author), Yin, Pengcheng (author), Yu, Jinyu (author), Shi, Zhifeng (author)
Since the introduction of the concept of 3D cadastre, a great many of significant research results have been done. To promote the development of 3D cadatre, 3D cadastre working group sponsored by International Federation Surveyors (FIG) commissions 3 and 7 was organized by Delft University of Technology in 2001. This working group provides a...
conference paper 2018
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Zhao, Zhou (author), Buchner, A.J.L.L. (author), Ding, Junfei (author), Shi, Shengxian (author), Atkinson, Callum (author), Soria, Julio (author)
As a novel volumetric particle image velocimetry technique, single-camera light-field PIV (LF-PIV) is able to reconstruct three-dimensional flow fields with a single camera. The merits of LF-PIV lie in its concise hardware setup and minimum optical access requirement, its capability has been proved in many flow scenarios. In this study, LF-PIV...
conference paper 2018
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